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authorMitya Selivanov <automainint@guattari.tech>2024-01-18 07:46:43 +0100
committerMitya Selivanov <automainint@guattari.tech>2024-01-18 07:46:43 +0100
commitc0084258ee221aef25aed8a24f30476f0b68abf4 (patch)
tree621b0b5b53f4854266182cf07918d150a74a1de4
parent7ff75bae80b2633660db526484012044341e8184 (diff)
downloadkit-c0084258ee221aef25aed8a24f30476f0b68abf4.zip
add miniz
Diffstat
-rw-r--r--LICENSE2
-rw-r--r--TODO1
-rw-r--r--source/kit/miniz/miniz.c692
-rw-r--r--source/kit/miniz/miniz.h658
-rw-r--r--source/kit/miniz/miniz_common.h122
-rw-r--r--source/kit/miniz/miniz_tdef.c1792
-rw-r--r--source/kit/miniz/miniz_tdef.h271
-rw-r--r--source/kit/miniz/miniz_tinfl.c818
-rw-r--r--source/kit/miniz/miniz_tinfl.h218
-rw-r--r--source/kit/miniz/miniz_zip.c5473
-rw-r--r--source/kit/miniz/miniz_zip.h668
11 files changed, 10715 insertions, 0 deletions
diff --git a/LICENSE b/LICENSE
index c5d170d..6df20dd 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,8 @@
Copyright (c) 2022-2024 Mitya Selivanov
Copyright (c) 2022 Yonggang Luo
Copyright (c) 2016 Christian C. Sachs
+Copyright (c) 2013-2014 RAD Game Tools and Valve Software
+Copyright (c) 2010-2014 Rich Geldreich and Tenacious Software LLC
Copyright (c) 2012 yohhoy
Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/TODO b/TODO
index 6bfa994..5722db1 100644
--- a/TODO
+++ b/TODO
@@ -23,3 +23,4 @@ To-Do
- parse, print
- String builder
- Compression: zip, bzip2
+ - Refactor miniz; add tests
diff --git a/source/kit/miniz/miniz.c b/source/kit/miniz/miniz.c
new file mode 100644
index 0000000..b96c176
--- /dev/null
+++ b/source/kit/miniz/miniz.c
@@ -0,0 +1,692 @@
+/**************************************************************************
+ *
+ * Copyright 2013-2014 RAD Game Tools and Valve Software
+ * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ *obtaining a copy of this software and associated documentation files
+ *(the "Software"), to deal in the Software without restriction,
+ *including without limitation the rights to use, copy, modify, merge,
+ *publish, distribute, sublicense, and/or sell copies of the Software,
+ *and to permit persons to whom the Software is furnished to do so,
+ *subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "miniz.h"
+
+typedef unsigned char
+ mz_validate_uint16[sizeof(mz_uint16) == 2 ? 1 : -1];
+typedef unsigned char
+ mz_validate_uint32[sizeof(mz_uint32) == 4 ? 1 : -1];
+typedef unsigned char
+ mz_validate_uint64[sizeof(mz_uint64) == 8 ? 1 : -1];
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ------------------- zlib-style API's */
+
+mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr,
+ size_t buf_len) {
+ mz_uint32 i, s1 = (mz_uint32) (adler & 0xffff),
+ s2 = (mz_uint32) (adler >> 16);
+ size_t block_len = buf_len % 5552;
+ if (!ptr)
+ return MZ_ADLER32_INIT;
+ while (buf_len) {
+ for (i = 0; i + 7 < block_len; i += 8, ptr += 8) {
+ s1 += ptr[0], s2 += s1;
+ s1 += ptr[1], s2 += s1;
+ s1 += ptr[2], s2 += s1;
+ s1 += ptr[3], s2 += s1;
+ s1 += ptr[4], s2 += s1;
+ s1 += ptr[5], s2 += s1;
+ s1 += ptr[6], s2 += s1;
+ s1 += ptr[7], s2 += s1;
+ }
+ for (; i < block_len; ++i) s1 += *ptr++, s2 += s1;
+ s1 %= 65521U, s2 %= 65521U;
+ buf_len -= block_len;
+ block_len = 5552;
+ }
+ return (s2 << 16) + s1;
+}
+
+/* Karl Malbrain's compact CRC-32. See "A compact CCITT crc16 and
+ * crc32 C implementation that balances processor cache usage against
+ * speed": http://www.geocities.com/malbrain/ */
+#if 0
+ mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len)
+ {
+ static const mz_uint32 s_crc32[16] = { 0, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
+ 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c };
+ mz_uint32 crcu32 = (mz_uint32)crc;
+ if (!ptr)
+ return MZ_CRC32_INIT;
+ crcu32 = ~crcu32;
+ while (buf_len--)
+ {
+ mz_uint8 b = *ptr++;
+ crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b & 0xF)];
+ crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b >> 4)];
+ }
+ return ~crcu32;
+ }
+#elif defined(USE_EXTERNAL_MZCRC)
+/* If USE_EXTERNAL_CRC is defined, an external module will export the
+ * mz_crc32() symbol for us to use, e.g. an SSE-accelerated version.
+ * Depending on the impl, it may be necessary to ~ the input/output
+ * crc values.
+ */
+mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len);
+#else
+/* Faster, but larger CPU cache footprint.
+ */
+mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len) {
+ static const mz_uint32 s_crc_table[256] = {
+ 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419,
+ 0x706AF48F, 0xE963A535, 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4,
+ 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07,
+ 0x90BF1D91, 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
+ 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856,
+ 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9,
+ 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4,
+ 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+ 0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3,
+ 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC, 0x51DE003A,
+ 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599,
+ 0xB8BDA50F, 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+ 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D, 0x76DC4190,
+ 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F,
+ 0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E,
+ 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+ 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED,
+ 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950,
+ 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3,
+ 0xFBD44C65, 0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
+ 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A,
+ 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5,
+ 0xAA0A4C5F, 0xDD0D7CC9, 0x5005713C, 0x270241AA, 0xBE0B1010,
+ 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+ 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17,
+ 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6,
+ 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615,
+ 0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
+ 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, 0xF00F9344,
+ 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB,
+ 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, 0x10DA7A5A,
+ 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+ 0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1,
+ 0xA6BC5767, 0x3FB506DD, 0x48B2364B, 0xD80D2BDA, 0xAF0A1B4C,
+ 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF,
+ 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+ 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F, 0xC5BA3BBE,
+ 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31,
+ 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C,
+ 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+ 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B,
+ 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242,
+ 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1,
+ 0x18B74777, 0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
+ 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, 0xA00AE278,
+ 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7,
+ 0x4969474D, 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66,
+ 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+ 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605,
+ 0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8,
+ 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B,
+ 0x2D02EF8D
+ };
+
+ mz_uint32 crc32 = (mz_uint32) crc ^ 0xFFFFFFFF;
+ const mz_uint8 *pByte_buf = (const mz_uint8 *) ptr;
+
+ while (buf_len >= 4) {
+ crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF];
+ crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[1]) & 0xFF];
+ crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[2]) & 0xFF];
+ crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[3]) & 0xFF];
+ pByte_buf += 4;
+ buf_len -= 4;
+ }
+
+ while (buf_len) {
+ crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF];
+ ++pByte_buf;
+ --buf_len;
+ }
+
+ return ~crc32;
+}
+#endif
+
+void mz_free(void *p) {
+ MZ_FREE(p);
+}
+
+void *miniz_def_alloc_func(void *opaque, size_t items, size_t size) {
+ (void) opaque, (void) items, (void) size;
+ return MZ_MALLOC(items * size);
+}
+void miniz_def_free_func(void *opaque, void *address) {
+ (void) opaque, (void) address;
+ MZ_FREE(address);
+}
+void *miniz_def_realloc_func(void *opaque, void *address,
+ size_t items, size_t size) {
+ (void) opaque, (void) address, (void) items, (void) size;
+ return MZ_REALLOC(address, items * size);
+}
+
+const char *mz_version(void) {
+ return MZ_VERSION;
+}
+
+#ifndef MINIZ_NO_ZLIB_APIS
+
+# ifndef MINIZ_NO_DEFLATE_APIS
+
+int mz_deflateInit(mz_streamp pStream, int level) {
+ return mz_deflateInit2(pStream, level, MZ_DEFLATED,
+ MZ_DEFAULT_WINDOW_BITS, 9,
+ MZ_DEFAULT_STRATEGY);
+}
+
+int mz_deflateInit2(mz_streamp pStream, int level, int method,
+ int window_bits, int mem_level, int strategy) {
+ tdefl_compressor *pComp;
+ mz_uint comp_flags = TDEFL_COMPUTE_ADLER32 |
+ tdefl_create_comp_flags_from_zip_params(
+ level, window_bits, strategy);
+
+ if (!pStream)
+ return MZ_STREAM_ERROR;
+ if ((method != MZ_DEFLATED) ||
+ ((mem_level < 1) || (mem_level > 9)) ||
+ ((window_bits != MZ_DEFAULT_WINDOW_BITS) &&
+ (-window_bits != MZ_DEFAULT_WINDOW_BITS)))
+ return MZ_PARAM_ERROR;
+
+ pStream->data_type = 0;
+ pStream->adler = MZ_ADLER32_INIT;
+ pStream->msg = NULL;
+ pStream->reserved = 0;
+ pStream->total_in = 0;
+ pStream->total_out = 0;
+ if (!pStream->zalloc)
+ pStream->zalloc = miniz_def_alloc_func;
+ if (!pStream->zfree)
+ pStream->zfree = miniz_def_free_func;
+
+ pComp = (tdefl_compressor *) pStream->zalloc(
+ pStream->opaque, 1, sizeof(tdefl_compressor));
+ if (!pComp)
+ return MZ_MEM_ERROR;
+
+ pStream->state = (struct mz_internal_state *) pComp;
+
+ if (tdefl_init(pComp, NULL, NULL, comp_flags) !=
+ TDEFL_STATUS_OKAY) {
+ mz_deflateEnd(pStream);
+ return MZ_PARAM_ERROR;
+ }
+
+ return MZ_OK;
+}
+
+int mz_deflateReset(mz_streamp pStream) {
+ if ((!pStream) || (!pStream->state) || (!pStream->zalloc) ||
+ (!pStream->zfree))
+ return MZ_STREAM_ERROR;
+ pStream->total_in = pStream->total_out = 0;
+ tdefl_init((tdefl_compressor *) pStream->state, NULL, NULL,
+ ((tdefl_compressor *) pStream->state)->m_flags);
+ return MZ_OK;
+}
+
+int mz_deflate(mz_streamp pStream, int flush) {
+ size_t in_bytes, out_bytes;
+ mz_ulong orig_total_in, orig_total_out;
+ int mz_status = MZ_OK;
+
+ if ((!pStream) || (!pStream->state) || (flush < 0) ||
+ (flush > MZ_FINISH) || (!pStream->next_out))
+ return MZ_STREAM_ERROR;
+ if (!pStream->avail_out)
+ return MZ_BUF_ERROR;
+
+ if (flush == MZ_PARTIAL_FLUSH)
+ flush = MZ_SYNC_FLUSH;
+
+ if (((tdefl_compressor *) pStream->state)->m_prev_return_status ==
+ TDEFL_STATUS_DONE)
+ return (flush == MZ_FINISH) ? MZ_STREAM_END : MZ_BUF_ERROR;
+
+ orig_total_in = pStream->total_in;
+ orig_total_out = pStream->total_out;
+ for (;;) {
+ tdefl_status defl_status;
+ in_bytes = pStream->avail_in;
+ out_bytes = pStream->avail_out;
+
+ defl_status = tdefl_compress((tdefl_compressor *) pStream->state,
+ pStream->next_in, &in_bytes,
+ pStream->next_out, &out_bytes,
+ (tdefl_flush) flush);
+ pStream->next_in += (mz_uint) in_bytes;
+ pStream->avail_in -= (mz_uint) in_bytes;
+ pStream->total_in += (mz_uint) in_bytes;
+ pStream->adler = tdefl_get_adler32(
+ (tdefl_compressor *) pStream->state);
+
+ pStream->next_out += (mz_uint) out_bytes;
+ pStream->avail_out -= (mz_uint) out_bytes;
+ pStream->total_out += (mz_uint) out_bytes;
+
+ if (defl_status < 0) {
+ mz_status = MZ_STREAM_ERROR;
+ break;
+ } else if (defl_status == TDEFL_STATUS_DONE) {
+ mz_status = MZ_STREAM_END;
+ break;
+ } else if (!pStream->avail_out)
+ break;
+ else if ((!pStream->avail_in) && (flush != MZ_FINISH)) {
+ if ((flush) || (pStream->total_in != orig_total_in) ||
+ (pStream->total_out != orig_total_out))
+ break;
+ return MZ_BUF_ERROR; /* Can't make forward progress without some
+ * input.
+ */
+ }
+ }
+ return mz_status;
+}
+
+int mz_deflateEnd(mz_streamp pStream) {
+ if (!pStream)
+ return MZ_STREAM_ERROR;
+ if (pStream->state) {
+ pStream->zfree(pStream->opaque, pStream->state);
+ pStream->state = NULL;
+ }
+ return MZ_OK;
+}
+
+mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len) {
+ (void) pStream;
+ /* This is really over conservative. (And lame, but it's actually
+ * pretty tricky to compute a true upper bound given the way tdefl's
+ * blocking works.) */
+ return MZ_MAX(128 + (source_len * 110) / 100,
+ 128 + source_len +
+ ((source_len / (31 * 1024)) + 1) * 5);
+}
+
+int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource, mz_ulong source_len,
+ int level) {
+ int status;
+ mz_stream stream;
+ memset(&stream, 0, sizeof(stream));
+
+ /* In case mz_ulong is 64-bits (argh I hate longs). */
+ if ((mz_uint64) (source_len | *pDest_len) > 0xFFFFFFFFU)
+ return MZ_PARAM_ERROR;
+
+ stream.next_in = pSource;
+ stream.avail_in = (mz_uint32) source_len;
+ stream.next_out = pDest;
+ stream.avail_out = (mz_uint32) *pDest_len;
+
+ status = mz_deflateInit(&stream, level);
+ if (status != MZ_OK)
+ return status;
+
+ status = mz_deflate(&stream, MZ_FINISH);
+ if (status != MZ_STREAM_END) {
+ mz_deflateEnd(&stream);
+ return (status == MZ_OK) ? MZ_BUF_ERROR : status;
+ }
+
+ *pDest_len = stream.total_out;
+ return mz_deflateEnd(&stream);
+}
+
+int mz_compress(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource, mz_ulong source_len) {
+ return mz_compress2(pDest, pDest_len, pSource, source_len,
+ MZ_DEFAULT_COMPRESSION);
+}
+
+mz_ulong mz_compressBound(mz_ulong source_len) {
+ return mz_deflateBound(NULL, source_len);
+}
+
+# endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/
+
+# ifndef MINIZ_NO_INFLATE_APIS
+
+typedef struct {
+ tinfl_decompressor m_decomp;
+ mz_uint m_dict_ofs, m_dict_avail, m_first_call, m_has_flushed;
+ int m_window_bits;
+ mz_uint8 m_dict[TINFL_LZ_DICT_SIZE];
+ tinfl_status m_last_status;
+} inflate_state;
+
+int mz_inflateInit2(mz_streamp pStream, int window_bits) {
+ inflate_state *pDecomp;
+ if (!pStream)
+ return MZ_STREAM_ERROR;
+ if ((window_bits != MZ_DEFAULT_WINDOW_BITS) &&
+ (-window_bits != MZ_DEFAULT_WINDOW_BITS))
+ return MZ_PARAM_ERROR;
+
+ pStream->data_type = 0;
+ pStream->adler = 0;
+ pStream->msg = NULL;
+ pStream->total_in = 0;
+ pStream->total_out = 0;
+ pStream->reserved = 0;
+ if (!pStream->zalloc)
+ pStream->zalloc = miniz_def_alloc_func;
+ if (!pStream->zfree)
+ pStream->zfree = miniz_def_free_func;
+
+ pDecomp = (inflate_state *) pStream->zalloc(pStream->opaque, 1,
+ sizeof(inflate_state));
+ if (!pDecomp)
+ return MZ_MEM_ERROR;
+
+ pStream->state = (struct mz_internal_state *) pDecomp;
+
+ tinfl_init(&pDecomp->m_decomp);
+ pDecomp->m_dict_ofs = 0;
+ pDecomp->m_dict_avail = 0;
+ pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT;
+ pDecomp->m_first_call = 1;
+ pDecomp->m_has_flushed = 0;
+ pDecomp->m_window_bits = window_bits;
+
+ return MZ_OK;
+}
+
+int mz_inflateInit(mz_streamp pStream) {
+ return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS);
+}
+
+int mz_inflateReset(mz_streamp pStream) {
+ inflate_state *pDecomp;
+ if (!pStream)
+ return MZ_STREAM_ERROR;
+
+ pStream->data_type = 0;
+ pStream->adler = 0;
+ pStream->msg = NULL;
+ pStream->total_in = 0;
+ pStream->total_out = 0;
+ pStream->reserved = 0;
+
+ pDecomp = (inflate_state *) pStream->state;
+
+ tinfl_init(&pDecomp->m_decomp);
+ pDecomp->m_dict_ofs = 0;
+ pDecomp->m_dict_avail = 0;
+ pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT;
+ pDecomp->m_first_call = 1;
+ pDecomp->m_has_flushed = 0;
+ /* pDecomp->m_window_bits = window_bits */;
+
+ return MZ_OK;
+}
+
+int mz_inflate(mz_streamp pStream, int flush) {
+ inflate_state *pState;
+ mz_uint n, first_call, decomp_flags = TINFL_FLAG_COMPUTE_ADLER32;
+ size_t in_bytes, out_bytes, orig_avail_in;
+ tinfl_status status;
+
+ if ((!pStream) || (!pStream->state))
+ return MZ_STREAM_ERROR;
+ if (flush == MZ_PARTIAL_FLUSH)
+ flush = MZ_SYNC_FLUSH;
+ if ((flush) && (flush != MZ_SYNC_FLUSH) && (flush != MZ_FINISH))
+ return MZ_STREAM_ERROR;
+
+ pState = (inflate_state *) pStream->state;
+ if (pState->m_window_bits > 0)
+ decomp_flags |= TINFL_FLAG_PARSE_ZLIB_HEADER;
+ orig_avail_in = pStream->avail_in;
+
+ first_call = pState->m_first_call;
+ pState->m_first_call = 0;
+ if (pState->m_last_status < 0)
+ return MZ_DATA_ERROR;
+
+ if (pState->m_has_flushed && (flush != MZ_FINISH))
+ return MZ_STREAM_ERROR;
+ pState->m_has_flushed |= (flush == MZ_FINISH);
+
+ if ((flush == MZ_FINISH) && (first_call)) {
+ /* MZ_FINISH on the first call implies that the input and output
+ * buffers are large enough to hold the entire
+ * compressed/decompressed file. */
+ decomp_flags |= TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF;
+ in_bytes = pStream->avail_in;
+ out_bytes = pStream->avail_out;
+ status = tinfl_decompress(&pState->m_decomp, pStream->next_in,
+ &in_bytes, pStream->next_out,
+ pStream->next_out, &out_bytes,
+ decomp_flags);
+ pState->m_last_status = status;
+ pStream->next_in += (mz_uint) in_bytes;
+ pStream->avail_in -= (mz_uint) in_bytes;
+ pStream->total_in += (mz_uint) in_bytes;
+ pStream->adler = tinfl_get_adler32(&pState->m_decomp);
+ pStream->next_out += (mz_uint) out_bytes;
+ pStream->avail_out -= (mz_uint) out_bytes;
+ pStream->total_out += (mz_uint) out_bytes;
+
+ if (status < 0)
+ return MZ_DATA_ERROR;
+ else if (status != TINFL_STATUS_DONE) {
+ pState->m_last_status = TINFL_STATUS_FAILED;
+ return MZ_BUF_ERROR;
+ }
+ return MZ_STREAM_END;
+ }
+ /* flush != MZ_FINISH then we must assume there's more input. */
+ if (flush != MZ_FINISH)
+ decomp_flags |= TINFL_FLAG_HAS_MORE_INPUT;
+
+ if (pState->m_dict_avail) {
+ n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
+ memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
+ pStream->next_out += n;
+ pStream->avail_out -= n;
+ pStream->total_out += n;
+ pState->m_dict_avail -= n;
+ pState->m_dict_ofs = (pState->m_dict_ofs + n) &
+ (TINFL_LZ_DICT_SIZE - 1);
+ return ((pState->m_last_status == TINFL_STATUS_DONE) &&
+ (!pState->m_dict_avail))
+ ? MZ_STREAM_END
+ : MZ_OK;
+ }
+
+ for (;;) {
+ in_bytes = pStream->avail_in;
+ out_bytes = TINFL_LZ_DICT_SIZE - pState->m_dict_ofs;
+
+ status = tinfl_decompress(&pState->m_decomp, pStream->next_in,
+ &in_bytes, pState->m_dict,
+ pState->m_dict + pState->m_dict_ofs,
+ &out_bytes, decomp_flags);
+ pState->m_last_status = status;
+
+ pStream->next_in += (mz_uint) in_bytes;
+ pStream->avail_in -= (mz_uint) in_bytes;
+ pStream->total_in += (mz_uint) in_bytes;
+ pStream->adler = tinfl_get_adler32(&pState->m_decomp);
+
+ pState->m_dict_avail = (mz_uint) out_bytes;
+
+ n = MZ_MIN(pState->m_dict_avail, pStream->avail_out);
+ memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n);
+ pStream->next_out += n;
+ pStream->avail_out -= n;
+ pStream->total_out += n;
+ pState->m_dict_avail -= n;
+ pState->m_dict_ofs = (pState->m_dict_ofs + n) &
+ (TINFL_LZ_DICT_SIZE - 1);
+
+ if (status < 0)
+ return MZ_DATA_ERROR; /* Stream is corrupted (there could be
+ some uncompressed data left in the
+ output dictionary - oh well). */
+ else if ((status == TINFL_STATUS_NEEDS_MORE_INPUT) &&
+ (!orig_avail_in))
+ return MZ_BUF_ERROR; /* Signal caller that we can't make forward
+ progress without supplying more input or
+ by setting flush to MZ_FINISH. */
+ else if (flush == MZ_FINISH) {
+ /* The output buffer MUST be large to hold the remaining
+ * uncompressed data when flush==MZ_FINISH. */
+ if (status == TINFL_STATUS_DONE)
+ return pState->m_dict_avail ? MZ_BUF_ERROR : MZ_STREAM_END;
+ /* status here must be TINFL_STATUS_HAS_MORE_OUTPUT, which means
+ * there's at least 1 more byte on the way. If there's no more
+ * room left in the output buffer then something is wrong. */
+ else if (!pStream->avail_out)
+ return MZ_BUF_ERROR;
+ } else if ((status == TINFL_STATUS_DONE) ||
+ (!pStream->avail_in) || (!pStream->avail_out) ||
+ (pState->m_dict_avail))
+ break;
+ }
+
+ return ((status == TINFL_STATUS_DONE) && (!pState->m_dict_avail))
+ ? MZ_STREAM_END
+ : MZ_OK;
+}
+
+int mz_inflateEnd(mz_streamp pStream) {
+ if (!pStream)
+ return MZ_STREAM_ERROR;
+ if (pStream->state) {
+ pStream->zfree(pStream->opaque, pStream->state);
+ pStream->state = NULL;
+ }
+ return MZ_OK;
+}
+int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource,
+ mz_ulong *pSource_len) {
+ mz_stream stream;
+ int status;
+ memset(&stream, 0, sizeof(stream));
+
+ /* In case mz_ulong is 64-bits (argh I hate longs). */
+ if ((mz_uint64) (*pSource_len | *pDest_len) > 0xFFFFFFFFU)
+ return MZ_PARAM_ERROR;
+
+ stream.next_in = pSource;
+ stream.avail_in = (mz_uint32) *pSource_len;
+ stream.next_out = pDest;
+ stream.avail_out = (mz_uint32) *pDest_len;
+
+ status = mz_inflateInit(&stream);
+ if (status != MZ_OK)
+ return status;
+
+ status = mz_inflate(&stream, MZ_FINISH);
+ *pSource_len = *pSource_len - stream.avail_in;
+ if (status != MZ_STREAM_END) {
+ mz_inflateEnd(&stream);
+ return ((status == MZ_BUF_ERROR) && (!stream.avail_in))
+ ? MZ_DATA_ERROR
+ : status;
+ }
+ *pDest_len = stream.total_out;
+
+ return mz_inflateEnd(&stream);
+}
+
+int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource, mz_ulong source_len) {
+ return mz_uncompress2(pDest, pDest_len, pSource, &source_len);
+}
+
+# endif /*#ifndef MINIZ_NO_INFLATE_APIS*/
+
+const char *mz_error(int err) {
+ static struct {
+ int m_err;
+ const char *m_pDesc;
+ } s_error_descs[] = { { MZ_OK, "" },
+ { MZ_STREAM_END, "stream end" },
+ { MZ_NEED_DICT, "need dictionary" },
+ { MZ_ERRNO, "file error" },
+ { MZ_STREAM_ERROR, "stream error" },
+ { MZ_DATA_ERROR, "data error" },
+ { MZ_MEM_ERROR, "out of memory" },
+ { MZ_BUF_ERROR, "buf error" },
+ { MZ_VERSION_ERROR, "version error" },
+ { MZ_PARAM_ERROR, "parameter error" } };
+ mz_uint i;
+ for (i = 0; i < sizeof(s_error_descs) / sizeof(s_error_descs[0]);
+ ++i)
+ if (s_error_descs[i].m_err == err)
+ return s_error_descs[i].m_pDesc;
+ return NULL;
+}
+
+#endif /*MINIZ_NO_ZLIB_APIS */
+
+#ifdef __cplusplus
+}
+#endif
+
+/*
+ This is free and unencumbered software released into the public
+ domain.
+
+ Anyone is free to copy, modify, publish, use, compile, sell, or
+ distribute this software, either in source code form or as a
+ compiled binary, for any purpose, commercial or non-commercial, and
+ by any means.
+
+ In jurisdictions that recognize copyright laws, the author or
+ authors of this software dedicate any and all copyright interest in
+ the software to the public domain. We make this dedication for the
+ benefit of the public at large and to the detriment of our heirs and
+ successors. We intend this dedication to be an overt act of
+ relinquishment in perpetuity of all present and future rights to
+ this software under copyright law.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+ For more information, please refer to <http://unlicense.org/>
+*/
diff --git a/source/kit/miniz/miniz.h b/source/kit/miniz/miniz.h
new file mode 100644
index 0000000..a80c389
--- /dev/null
+++ b/source/kit/miniz/miniz.h
@@ -0,0 +1,658 @@
+/* miniz.c 3.0.2 - public domain deflate/inflate, zlib-subset, ZIP
+ reading/writing/appending, PNG writing See "unlicense" statement at
+ the end of this file. Rich Geldreich <richgel99@gmail.com>, last
+ updated Oct. 13, 2013 Implements RFC 1950:
+ http://www.ietf.org/rfc/rfc1950.txt and RFC 1951:
+ http://www.ietf.org/rfc/rfc1951.txt
+
+ Most API's defined in miniz.c are optional. For example, to disable
+ the archive related functions just define MINIZ_NO_ARCHIVE_APIS, or
+ to get rid of all stdio usage define MINIZ_NO_STDIO (see the list
+ below for more macros).
+
+ * Low-level Deflate/Inflate implementation notes:
+
+ Compression: Use the "tdefl" API's. The compressor supports raw,
+ static, and dynamic blocks, lazy or greedy parsing, match length
+ filtering, RLE-only, and Huffman-only streams. It performs and
+ compresses approximately as well as zlib.
+
+ Decompression: Use the "tinfl" API's. The entire decompressor is
+ implemented as a single function coroutine: see tinfl_decompress().
+ It supports decompression into a 32KB (or larger power of 2)
+ wrapping buffer, or into a memory block large enough to hold the
+ entire file.
+
+ The low-level tdefl/tinfl API's do not make any use of dynamic
+ memory allocation.
+
+ * zlib-style API notes:
+
+ miniz.c implements a fairly large subset of zlib. There's enough
+ functionality present for it to be a drop-in zlib replacement in
+ many apps: The z_stream struct, optional memory allocation
+ callbacks
+ deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound
+ inflateInit/inflateInit2/inflate/inflateReset/inflateEnd
+ compress, compress2, compressBound, uncompress
+ CRC-32, Adler-32 - Using modern, minimal code size, CPU cache
+ friendly routines. Supports raw deflate streams or standard zlib
+ streams with adler-32 checking.
+
+ Limitations:
+ The callback API's are not implemented yet. No support for gzip
+ headers or zlib static dictionaries. I've tried to closely emulate
+ zlib's various flavors of stream flushing and return status codes,
+ but there are no guarantees that miniz.c pulls this off perfectly.
+
+ * PNG writing: See the tdefl_write_image_to_png_file_in_memory()
+ function, originally written by Alex Evans. Supports 1-4
+ bytes/pixel images.
+
+ * ZIP archive API notes:
+
+ The ZIP archive API's where designed with simplicity and
+ efficiency in mind, with just enough abstraction to get the job
+ done with minimal fuss. There are simple API's to retrieve file
+ information, read files from existing archives, create new
+ archives, append new files to existing archives, or clone archive
+ data from one archive to another. It supports archives located in
+ memory or the heap, on disk (using stdio.h), or you can specify
+ custom file read/write callbacks.
+
+ - Archive reading: Just call this function to read a single file
+ from a disk archive:
+
+ void *mz_zip_extract_archive_file_to_heap(const char
+ *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint
+ zip_flags);
+
+ For more complex cases, use the "mz_zip_reader" functions. Upon
+ opening an archive, the entire central directory is located and
+ read as-is into memory, and subsequent file access only occurs when
+ reading individual files.
+
+ - Archives file scanning: The simple way is to use this function
+ to scan a loaded archive for a specific file:
+
+ int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char
+ *pName, const char *pComment, mz_uint flags);
+
+ The locate operation can optionally check file comments too,
+ which (as one example) can be used to identify multiple versions of
+ the same file in an archive. This function uses a simple linear
+ search through the central directory, so it's not very fast.
+
+ Alternately, you can iterate through all the files in an archive
+ (using mz_zip_reader_get_num_files()) and retrieve detailed info on
+ each file by calling mz_zip_reader_file_stat().
+
+ - Archive creation: Use the "mz_zip_writer" functions. The ZIP
+ writer immediately writes compressed file data to disk and builds
+ an exact image of the central directory in memory. The central
+ directory image is written all at once at the end of the archive
+ file when the archive is finalized.
+
+ The archive writer can optionally align each file's local header
+ and file data to any power of 2 alignment, which can be useful when
+ the archive will be read from optical media. Also, the writer
+ supports placing arbitrary data blobs at the very beginning of ZIP
+ archives. Archives written using either feature are still readable
+ by any ZIP tool.
+
+ - Archive appending: The simple way to add a single file to an
+ archive is to call this function:
+
+ mz_bool mz_zip_add_mem_to_archive_file_in_place(const char
+ *pZip_filename, const char *pArchive_name, const void *pBuf, size_t
+ buf_size, const void *pComment, mz_uint16 comment_size, mz_uint
+ level_and_flags);
+
+ The archive will be created if it doesn't already exist,
+ otherwise it'll be appended to. Note the appending is done in-place
+ and is not an atomic operation, so if something goes wrong during
+ the operation it's possible the archive could be left without a
+ central directory (although the local file headers and file data
+ will be fine, so the archive will be recoverable).
+
+ For more complex archive modification scenarios:
+ 1. The safest way is to use a mz_zip_reader to read the existing
+ archive, cloning only those bits you want to preserve into a new
+ archive using using the mz_zip_writer_add_from_zip_reader()
+ function (which compiles the compressed file data as-is). When
+ you're done, delete the old archive and rename the newly written
+ archive, and you're done. This is safe but requires a bunch of
+ temporary disk space or heap memory.
+
+ 2. Or, you can convert an mz_zip_reader in-place to an
+ mz_zip_writer using mz_zip_writer_init_from_reader(), append new
+ files as needed, then finalize the archive which will write an
+ updated central directory to the original archive. (This is
+ basically what mz_zip_add_mem_to_archive_file_in_place() does.)
+ There's a possibility that the archive's central directory could be
+ lost with this method if anything goes wrong, though.
+
+ - ZIP archive support limitations:
+ No spanning support. Extraction functions can only handle
+ unencrypted, stored or deflated files. Requires streams capable of
+ seeking.
+
+ * This is a header file library, like stb_image.c. To get only a
+ header file, either cut and paste the below header, or create
+ miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then include miniz.c
+ from it.
+
+ * Important: For best perf. be sure to customize the below macros
+ for your target platform: #define
+ MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 #define MINIZ_LITTLE_ENDIAN
+ 1 #define MINIZ_HAS_64BIT_REGISTERS 1
+
+ * On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE
+ 1" before including miniz.c to ensure miniz uses the 64-bit
+ variants: fopen64(), stat64(), etc. Otherwise you won't be able to
+ process large files (i.e. 32-bit stat() fails for me on files >
+ 0x7FFFFFFF bytes).
+*/
+
+#ifndef KIT_MINIZ_MINIZ_H
+#define KIT_MINIZ_MINIZ_H
+
+/* Defines to completely disable specific portions of miniz.c:
+ If all macros here are defined the only functionality remaining
+ will be CRC-32 and adler-32. */
+
+/* Define MINIZ_NO_STDIO to disable all usage and any functions which
+ * rely on stdio for file I/O. */
+/*#define MINIZ_NO_STDIO */
+
+/* If MINIZ_NO_TIME is specified then the ZIP archive functions will
+ * not be able to get the current time, or */
+/* get/set file times, and the C run-time funcs that get/set times
+ * won't be called. */
+/* The current downside is the times written to your archives will be
+ * from 1979. */
+/*#define MINIZ_NO_TIME */
+
+/* Define MINIZ_NO_DEFLATE_APIS to disable all compression API's. */
+/*#define MINIZ_NO_DEFLATE_APIS */
+
+/* Define MINIZ_NO_INFLATE_APIS to disable all decompression API's. */
+/*#define MINIZ_NO_INFLATE_APIS */
+
+/* Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's. */
+/*#define MINIZ_NO_ARCHIVE_APIS */
+
+/* Define MINIZ_NO_ARCHIVE_WRITING_APIS to disable all writing related
+ * ZIP archive API's. */
+/*#define MINIZ_NO_ARCHIVE_WRITING_APIS */
+
+/* Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style
+ * compression/decompression API's. */
+/*#define MINIZ_NO_ZLIB_APIS */
+
+/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to
+ * prevent conflicts against stock zlib. */
+/*#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES */
+
+/* Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and
+ realloc. Note if MINIZ_NO_MALLOC is defined then the user must
+ always provide custom user alloc/free/realloc callbacks to the zlib
+ and archive API's, and a few stand-alone helper API's which don't
+ provide custom user
+ functions (such as tdefl_compress_mem_to_heap() and
+ tinfl_decompress_mem_to_heap()) won't work. */
+/*#define MINIZ_NO_MALLOC */
+
+#ifdef MINIZ_NO_INFLATE_APIS
+# define MINIZ_NO_ARCHIVE_APIS
+#endif
+
+#ifdef MINIZ_NO_DEFLATE_APIS
+# define MINIZ_NO_ARCHIVE_WRITING_APIS
+#endif
+
+#if defined(__TINYC__) && (defined(__linux) || defined(__linux__))
+/* TODO: Work around "error: include file 'sys\utime.h' when compiling
+ * with tcc on Linux */
+# define MINIZ_NO_TIME
+#endif
+
+#include "miniz_common.h"
+
+#include <stddef.h>
+
+#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS)
+# include <time.h>
+#endif
+
+#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || \
+ defined(__i386) || defined(__i486__) || defined(__i486) || \
+ defined(i386) || defined(__ia64__) || defined(__x86_64__)
+/* MINIZ_X86_OR_X64_CPU is only used to help set the below macros. */
+# define MINIZ_X86_OR_X64_CPU 1
+#else
+# define MINIZ_X86_OR_X64_CPU 0
+#endif
+
+/* Set MINIZ_LITTLE_ENDIAN only if not set */
+#if !defined(MINIZ_LITTLE_ENDIAN)
+# if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__)
+
+# if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+/* Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. */
+# define MINIZ_LITTLE_ENDIAN 1
+# else
+# define MINIZ_LITTLE_ENDIAN 0
+# endif
+
+# else
+
+# if MINIZ_X86_OR_X64_CPU
+# define MINIZ_LITTLE_ENDIAN 1
+# else
+# define MINIZ_LITTLE_ENDIAN 0
+# endif
+
+# endif
+#endif
+
+/* Using unaligned loads and stores causes errors when using UBSan */
+#if defined(__has_feature)
+# if __has_feature(undefined_behavior_sanitizer)
+# define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0
+# endif
+#endif
+
+/* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES only if not set */
+#if !defined(MINIZ_USE_UNALIGNED_LOADS_AND_STORES)
+# if MINIZ_X86_OR_X64_CPU
+/* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit
+ * efficient integer loads and stores from unaligned addresses. */
+# define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0
+# define MINIZ_UNALIGNED_USE_MEMCPY
+# else
+# define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0
+# endif
+#endif
+
+#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || \
+ defined(_LP64) || defined(__LP64__) || defined(__ia64__) || \
+ defined(__x86_64__)
+/* Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers
+ * are reasonably fast (and don't involve compiler generated calls to
+ * helper functions). */
+# define MINIZ_HAS_64BIT_REGISTERS 1
+#else
+# define MINIZ_HAS_64BIT_REGISTERS 0
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* ------------------- zlib-style API Definitions. */
+
+/* For more compatibility with zlib, miniz.c uses unsigned long for
+ * some parameters/struct members. Beware: mz_ulong can be either 32
+ * or 64-bits! */
+typedef unsigned long mz_ulong;
+
+/* mz_free() internally uses the MZ_FREE() macro (which by default
+ * calls free() unless you've modified the MZ_MALLOC macro) to release
+ * a block allocated from the heap. */
+void mz_free(void *p);
+
+#define MZ_ADLER32_INIT (1)
+/* mz_adler32() returns the initial adler-32 value to use when called
+ * with ptr==NULL. */
+mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr,
+ size_t buf_len);
+
+#define MZ_CRC32_INIT (0)
+/* mz_crc32() returns the initial CRC-32 value to use when called with
+ * ptr==NULL. */
+mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr,
+ size_t buf_len);
+
+/* Compression strategies. */
+enum {
+ MZ_DEFAULT_STRATEGY = 0,
+ MZ_FILTERED = 1,
+ MZ_HUFFMAN_ONLY = 2,
+ MZ_RLE = 3,
+ MZ_FIXED = 4
+};
+
+/* Method */
+#define MZ_DEFLATED 8
+
+/* Compression levels: 0-9 are the standard zlib-style levels, 10 is
+ * best possible compression (not zlib compatible, and may be very
+ * slow), MZ_DEFAULT_COMPRESSION=MZ_DEFAULT_LEVEL. */
+enum {
+ MZ_NO_COMPRESSION = 0,
+ MZ_BEST_SPEED = 1,
+ MZ_BEST_COMPRESSION = 9,
+ MZ_UBER_COMPRESSION = 10,
+ MZ_DEFAULT_LEVEL = 6,
+ MZ_DEFAULT_COMPRESSION = -1
+};
+
+#define MZ_VERSION "11.0.2"
+#define MZ_VERNUM 0xB002
+#define MZ_VER_MAJOR 11
+#define MZ_VER_MINOR 2
+#define MZ_VER_REVISION 0
+#define MZ_VER_SUBREVISION 0
+
+#ifndef MINIZ_NO_ZLIB_APIS
+
+/* Flush values. For typical usage you only need MZ_NO_FLUSH and
+ * MZ_FINISH. The other values are for advanced use (refer to the zlib
+ * docs). */
+enum {
+ MZ_NO_FLUSH = 0,
+ MZ_PARTIAL_FLUSH = 1,
+ MZ_SYNC_FLUSH = 2,
+ MZ_FULL_FLUSH = 3,
+ MZ_FINISH = 4,
+ MZ_BLOCK = 5
+};
+
+/* Return status codes. MZ_PARAM_ERROR is non-standard. */
+enum {
+ MZ_OK = 0,
+ MZ_STREAM_END = 1,
+ MZ_NEED_DICT = 2,
+ MZ_ERRNO = -1,
+ MZ_STREAM_ERROR = -2,
+ MZ_DATA_ERROR = -3,
+ MZ_MEM_ERROR = -4,
+ MZ_BUF_ERROR = -5,
+ MZ_VERSION_ERROR = -6,
+ MZ_PARAM_ERROR = -10000
+};
+
+/* Window bits */
+# define MZ_DEFAULT_WINDOW_BITS 15
+
+struct mz_internal_state;
+
+/* Compression/decompression stream struct. */
+typedef struct mz_stream_s {
+ const unsigned char *next_in; /* pointer to next byte to read */
+ unsigned int avail_in; /* number of bytes available at next_in */
+ mz_ulong total_in; /* total number of bytes consumed so far */
+
+ unsigned char *next_out; /* pointer to next byte to write */
+ unsigned int
+ avail_out; /* number of bytes that can be written to next_out */
+ mz_ulong total_out; /* total number of bytes produced so far */
+
+ char *msg; /* error msg (unused) */
+ struct mz_internal_state
+ *state; /* internal state, allocated by zalloc/zfree */
+
+ mz_alloc_func zalloc; /* optional heap allocation function (defaults
+ to malloc) */
+ mz_free_func
+ zfree; /* optional heap free function (defaults to free) */
+ void *opaque; /* heap alloc function user pointer */
+
+ int data_type; /* data_type (unused) */
+ mz_ulong adler; /* adler32 of the source or uncompressed data */
+ mz_ulong reserved; /* not used */
+} mz_stream;
+
+typedef mz_stream *mz_streamp;
+
+/* Returns the version string of miniz.c. */
+const char *mz_version(void);
+
+# ifndef MINIZ_NO_DEFLATE_APIS
+
+/* mz_deflateInit() initializes a compressor with default options: */
+/* Parameters: */
+/* pStream must point to an initialized mz_stream struct. */
+/* level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION]. */
+/* level 1 enables a specially optimized compression function that's
+ * been optimized purely for performance, not ratio. */
+/* (This special func. is currently only enabled when
+ * MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are
+ * defined.) */
+/* Return values: */
+/* MZ_OK on success. */
+/* MZ_STREAM_ERROR if the stream is bogus. */
+/* MZ_PARAM_ERROR if the input parameters are bogus. */
+/* MZ_MEM_ERROR on out of memory. */
+int mz_deflateInit(mz_streamp pStream, int level);
+
+/* mz_deflateInit2() is like mz_deflate(), except with more control:
+ */
+/* Additional parameters: */
+/* method must be MZ_DEFLATED */
+/* window_bits must be MZ_DEFAULT_WINDOW_BITS (to wrap the deflate
+ * stream with zlib header/adler-32 footer) or -MZ_DEFAULT_WINDOW_BITS
+ * (raw deflate/no header or footer) */
+/* mem_level must be between [1, 9] (it's checked but ignored by
+ * miniz.c) */
+int mz_deflateInit2(mz_streamp pStream, int level, int method,
+ int window_bits, int mem_level, int strategy);
+
+/* Quickly resets a compressor without having to reallocate anything.
+ * Same as calling mz_deflateEnd() followed by
+ * mz_deflateInit()/mz_deflateInit2(). */
+int mz_deflateReset(mz_streamp pStream);
+
+/* mz_deflate() compresses the input to output, consuming as much of
+ * the input and producing as much output as possible. */
+/* Parameters: */
+/* pStream is the stream to read from and write to. You must
+ * initialize/update the next_in, avail_in, next_out, and avail_out
+ * members. */
+/* flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH,
+ * MZ_FULL_FLUSH, or MZ_FINISH. */
+/* Return values: */
+/* MZ_OK on success (when flushing, or if more input is needed but
+ * not available, and/or there's more output to be written but the
+ * output buffer is full). */
+/* MZ_STREAM_END if all input has been consumed and all output bytes
+ * have been written. Don't call mz_deflate() on the stream anymore.
+ */
+/* MZ_STREAM_ERROR if the stream is bogus. */
+/* MZ_PARAM_ERROR if one of the parameters is invalid. */
+/* MZ_BUF_ERROR if no forward progress is possible because the input
+ * and/or output buffers are empty. (Fill up the input buffer or free
+ * up some output space and try again.) */
+int mz_deflate(mz_streamp pStream, int flush);
+
+/* mz_deflateEnd() deinitializes a compressor: */
+/* Return values: */
+/* MZ_OK on success. */
+/* MZ_STREAM_ERROR if the stream is bogus. */
+int mz_deflateEnd(mz_streamp pStream);
+
+/* mz_deflateBound() returns a (very) conservative upper bound on the
+ * amount of data that could be generated by deflate(), assuming flush
+ * is set to only MZ_NO_FLUSH or MZ_FINISH. */
+mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len);
+
+/* Single-call compression functions mz_compress() and mz_compress2():
+ */
+/* Returns MZ_OK on success, or one of the error codes from
+ * mz_deflate() on failure. */
+int mz_compress(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource, mz_ulong source_len);
+int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource, mz_ulong source_len,
+ int level);
+
+/* mz_compressBound() returns a (very) conservative upper bound on the
+ * amount of data that could be generated by calling mz_compress(). */
+mz_ulong mz_compressBound(mz_ulong source_len);
+
+# endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/
+
+# ifndef MINIZ_NO_INFLATE_APIS
+
+/* Initializes a decompressor. */
+int mz_inflateInit(mz_streamp pStream);
+
+/* mz_inflateInit2() is like mz_inflateInit() with an additional
+ * option that controls the window size and whether or not the stream
+ * has been wrapped with a zlib header/footer: */
+/* window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib
+ * header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate). */
+int mz_inflateInit2(mz_streamp pStream, int window_bits);
+
+/* Quickly resets a compressor without having to reallocate anything.
+ * Same as calling mz_inflateEnd() followed by
+ * mz_inflateInit()/mz_inflateInit2(). */
+int mz_inflateReset(mz_streamp pStream);
+
+/* Decompresses the input stream to the output, consuming only as much
+ * of the input as needed, and writing as much to the output as
+ * possible. */
+/* Parameters: */
+/* pStream is the stream to read from and write to. You must
+ * initialize/update the next_in, avail_in, next_out, and avail_out
+ * members. */
+/* flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH. */
+/* On the first call, if flush is MZ_FINISH it's assumed the input
+ * and output buffers are both sized large enough to decompress the
+ * entire stream in a single call (this is slightly faster). */
+/* MZ_FINISH implies that there are no more source bytes available
+ * beside what's already in the input buffer, and that the output
+ * buffer is large enough to hold the rest of the decompressed data.
+ */
+/* Return values: */
+/* MZ_OK on success. Either more input is needed but not available,
+ * and/or there's more output to be written but the output buffer is
+ * full. */
+/* MZ_STREAM_END if all needed input has been consumed and all
+ * output bytes have been written. For zlib streams, the adler-32 of
+ * the decompressed data has also been verified. */
+/* MZ_STREAM_ERROR if the stream is bogus. */
+/* MZ_DATA_ERROR if the deflate stream is invalid. */
+/* MZ_PARAM_ERROR if one of the parameters is invalid. */
+/* MZ_BUF_ERROR if no forward progress is possible because the input
+ * buffer is empty but the inflater needs more input to continue, or
+ * if the output buffer is not large enough. Call mz_inflate() again
+ */
+/* with more input data, or with more room in the output buffer
+ * (except when using single call decompression, described above). */
+int mz_inflate(mz_streamp pStream, int flush);
+
+/* Deinitializes a decompressor. */
+int mz_inflateEnd(mz_streamp pStream);
+
+/* Single-call decompression. */
+/* Returns MZ_OK on success, or one of the error codes from
+ * mz_inflate() on failure. */
+int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource, mz_ulong source_len);
+int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len,
+ const unsigned char *pSource,
+ mz_ulong *pSource_len);
+# endif /*#ifndef MINIZ_NO_INFLATE_APIS*/
+
+/* Returns a string description of the specified error code, or NULL
+ * if the error code is invalid. */
+const char *mz_error(int err);
+
+/* Redefine zlib-compatible names to miniz equivalents, so miniz.c can
+ * be used as a drop-in replacement for the subset of zlib that
+ * miniz.c supports. */
+/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility
+ * if you use zlib in the same project. */
+# ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES
+typedef unsigned char Byte;
+typedef unsigned int uInt;
+typedef mz_ulong uLong;
+typedef Byte Bytef;
+typedef uInt uIntf;
+typedef char charf;
+typedef int intf;
+typedef void *voidpf;
+typedef uLong uLongf;
+typedef void *voidp;
+typedef void *const voidpc;
+# define Z_NULL 0
+# define Z_NO_FLUSH MZ_NO_FLUSH
+# define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH
+# define Z_SYNC_FLUSH MZ_SYNC_FLUSH
+# define Z_FULL_FLUSH MZ_FULL_FLUSH
+# define Z_FINISH MZ_FINISH
+# define Z_BLOCK MZ_BLOCK
+# define Z_OK MZ_OK
+# define Z_STREAM_END MZ_STREAM_END
+# define Z_NEED_DICT MZ_NEED_DICT
+# define Z_ERRNO MZ_ERRNO
+# define Z_STREAM_ERROR MZ_STREAM_ERROR
+# define Z_DATA_ERROR MZ_DATA_ERROR
+# define Z_MEM_ERROR MZ_MEM_ERROR
+# define Z_BUF_ERROR MZ_BUF_ERROR
+# define Z_VERSION_ERROR MZ_VERSION_ERROR
+# define Z_PARAM_ERROR MZ_PARAM_ERROR
+# define Z_NO_COMPRESSION MZ_NO_COMPRESSION
+# define Z_BEST_SPEED MZ_BEST_SPEED
+# define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION
+# define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION
+# define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY
+# define Z_FILTERED MZ_FILTERED
+# define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY
+# define Z_RLE MZ_RLE
+# define Z_FIXED MZ_FIXED
+# define Z_DEFLATED MZ_DEFLATED
+# define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS
+# define alloc_func mz_alloc_func
+# define free_func mz_free_func
+# define internal_state mz_internal_state
+# define z_stream mz_stream
+
+# ifndef MINIZ_NO_DEFLATE_APIS
+# define deflateInit mz_deflateInit
+# define deflateInit2 mz_deflateInit2
+# define deflateReset mz_deflateReset
+# define deflate mz_deflate
+# define deflateEnd mz_deflateEnd
+# define deflateBound mz_deflateBound
+# define compress mz_compress
+# define compress2 mz_compress2
+# define compressBound mz_compressBound
+# endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/
+
+# ifndef MINIZ_NO_INFLATE_APIS
+# define inflateInit mz_inflateInit
+# define inflateInit2 mz_inflateInit2
+# define inflateReset mz_inflateReset
+# define inflate mz_inflate
+# define inflateEnd mz_inflateEnd
+# define uncompress mz_uncompress
+# define uncompress2 mz_uncompress2
+# endif /*#ifndef MINIZ_NO_INFLATE_APIS*/
+
+# define crc32 mz_crc32
+# define adler32 mz_adler32
+# define MAX_WBITS 15
+# define MAX_MEM_LEVEL 9
+# define zError mz_error
+# define ZLIB_VERSION MZ_VERSION
+# define ZLIB_VERNUM MZ_VERNUM
+# define ZLIB_VER_MAJOR MZ_VER_MAJOR
+# define ZLIB_VER_MINOR MZ_VER_MINOR
+# define ZLIB_VER_REVISION MZ_VER_REVISION
+# define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION
+# define zlibVersion mz_version
+# define zlib_version mz_version()
+# endif /* #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES */
+
+#endif /* MINIZ_NO_ZLIB_APIS */
+
+#ifdef __cplusplus
+}
+#endif
+
+#include "miniz_zip.h"
+
+#endif
diff --git a/source/kit/miniz/miniz_common.h b/source/kit/miniz/miniz_common.h
new file mode 100644
index 0000000..26306f3
--- /dev/null
+++ b/source/kit/miniz/miniz_common.h
@@ -0,0 +1,122 @@
+#ifndef KIT_MINIZ_MINIZ_COMMON_H
+#define KIT_MINIZ_MINIZ_COMMON_H
+
+#ifndef _GNU_SOURCE
+# define _GNU_SOURCE
+#endif
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* ------------------- Types and macros */
+typedef unsigned char mz_uint8;
+typedef signed short mz_int16;
+typedef unsigned short mz_uint16;
+typedef unsigned int mz_uint32;
+typedef unsigned int mz_uint;
+typedef int64_t mz_int64;
+typedef uint64_t mz_uint64;
+typedef int mz_bool;
+
+#define MZ_FALSE (0)
+#define MZ_TRUE (1)
+
+/* Works around MSVC's spammy "warning C4127: conditional expression
+ * is constant" message. */
+#ifdef _MSC_VER
+# define MZ_MACRO_END while (0, 0)
+#else
+# define MZ_MACRO_END while (0)
+#endif
+
+#ifdef MINIZ_NO_STDIO
+# define MZ_FILE void *
+#else
+# include <stdio.h>
+# define MZ_FILE FILE
+#endif /* #ifdef MINIZ_NO_STDIO */
+
+#ifdef MINIZ_NO_TIME
+typedef struct mz_dummy_time_t_tag {
+ mz_uint32 m_dummy1;
+ mz_uint32 m_dummy2;
+} mz_dummy_time_t;
+# define MZ_TIME_T mz_dummy_time_t
+#else
+# define MZ_TIME_T time_t
+#endif
+
+#define MZ_ASSERT(x) assert(x)
+
+#ifdef MINIZ_NO_MALLOC
+# define MZ_MALLOC(x) NULL
+# define MZ_FREE(x) (void) x, ((void) 0)
+# define MZ_REALLOC(p, x) NULL
+#else
+# define MZ_MALLOC(x) malloc(x)
+# define MZ_FREE(x) free(x)
+# define MZ_REALLOC(p, x) realloc(p, x)
+#endif
+
+#define MZ_MAX(a, b) (((a) > (b)) ? (a) : (b))
+#define MZ_MIN(a, b) (((a) < (b)) ? (a) : (b))
+#define MZ_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj))
+#define MZ_CLEAR_ARR(obj) memset((obj), 0, sizeof(obj))
+#define MZ_CLEAR_PTR(obj) memset((obj), 0, sizeof(*obj))
+
+#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
+# define MZ_READ_LE16(p) *((const mz_uint16 *) (p))
+# define MZ_READ_LE32(p) *((const mz_uint32 *) (p))
+#else
+# define MZ_READ_LE16(p) \
+ ((mz_uint32) (((const mz_uint8 *) (p))[0]) | \
+ ((mz_uint32) (((const mz_uint8 *) (p))[1]) << 8U))
+# define MZ_READ_LE32(p) \
+ ((mz_uint32) (((const mz_uint8 *) (p))[0]) | \
+ ((mz_uint32) (((const mz_uint8 *) (p))[1]) << 8U) | \
+ ((mz_uint32) (((const mz_uint8 *) (p))[2]) << 16U) | \
+ ((mz_uint32) (((const mz_uint8 *) (p))[3]) << 24U))
+#endif
+
+#define MZ_READ_LE64(p) \
+ (((mz_uint64) MZ_READ_LE32(p)) | \
+ (((mz_uint64) MZ_READ_LE32((const mz_uint8 *) (p) + \
+ sizeof(mz_uint32))) \
+ << 32U))
+
+#ifdef _MSC_VER
+# define MZ_FORCEINLINE __forceinline
+#elif defined(__GNUC__)
+# define MZ_FORCEINLINE __inline__ __attribute__((__always_inline__))
+#else
+# define MZ_FORCEINLINE inline
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Heap allocation callbacks.
+Note that mz_alloc_func parameter types purposely differ from zlib's:
+items/size is size_t, not unsigned long. */
+typedef void *(*mz_alloc_func)(void *opaque, size_t items,
+ size_t size);
+typedef void (*mz_free_func)(void *opaque, void *address);
+typedef void *(*mz_realloc_func)(void *opaque, void *address,
+ size_t items, size_t size);
+
+void *miniz_def_alloc_func(void *opaque, size_t items, size_t size);
+void miniz_def_free_func(void *opaque, void *address);
+void *miniz_def_realloc_func(void *opaque, void *address,
+ size_t items, size_t size);
+
+#define MZ_UINT16_MAX (0xFFFFU)
+#define MZ_UINT32_MAX (0xFFFFFFFFU)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/source/kit/miniz/miniz_tdef.c b/source/kit/miniz/miniz_tdef.c
new file mode 100644
index 0000000..5220466
--- /dev/null
+++ b/source/kit/miniz/miniz_tdef.c
@@ -0,0 +1,1792 @@
+/**************************************************************************
+ *
+ * Copyright 2013-2014 RAD Game Tools and Valve Software
+ * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ *obtaining a copy of this software and associated documentation files
+ *(the "Software"), to deal in the Software without restriction,
+ *including without limitation the rights to use, copy, modify, merge,
+ *publish, distribute, sublicense, and/or sell copies of the Software,
+ *and to permit persons to whom the Software is furnished to do so,
+ *subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "miniz.h"
+
+#ifndef MINIZ_NO_DEFLATE_APIS
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+/* ------------------- Low-level Compression (independent from all
+ * decompression API's) */
+
+/* Purposely making these tables static for faster init and thread
+ * safety. */
+static const mz_uint16 s_tdefl_len_sym[256] = {
+ 257, 258, 259, 260, 261, 262, 263, 264, 265, 265, 266, 266, 267,
+ 267, 268, 268, 269, 269, 269, 269, 270, 270, 270, 270, 271, 271,
+ 271, 271, 272, 272, 272, 272, 273, 273, 273, 273, 273, 273, 273,
+ 273, 274, 274, 274, 274, 274, 274, 274, 274, 275, 275, 275, 275,
+ 275, 275, 275, 275, 276, 276, 276, 276, 276, 276, 276, 276, 277,
+ 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277,
+ 277, 277, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278,
+ 278, 278, 278, 278, 278, 279, 279, 279, 279, 279, 279, 279, 279,
+ 279, 279, 279, 279, 279, 279, 279, 279, 280, 280, 280, 280, 280,
+ 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 281, 281,
+ 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281,
+ 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281,
+ 281, 281, 281, 281, 282, 282, 282, 282, 282, 282, 282, 282, 282,
+ 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282,
+ 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 283, 283, 283,
+ 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283,
+ 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283,
+ 283, 283, 283, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284,
+ 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284,
+ 284, 284, 284, 284, 284, 284, 284, 284, 285
+};
+
+static const mz_uint8 s_tdefl_len_extra[256] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0
+};
+
+static const mz_uint8 s_tdefl_small_dist_sym[512] = {
+ 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8,
+ 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10,
+ 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11,
+ 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
+ 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
+ 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16,
+ 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
+ 17, 17
+};
+
+static const mz_uint8 s_tdefl_small_dist_extra[512] = {
+ 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7
+};
+
+static const mz_uint8 s_tdefl_large_dist_sym[128] = {
+ 0, 0, 18, 19, 20, 20, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23,
+ 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25,
+ 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+ 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28,
+ 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29,
+ 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29
+};
+
+static const mz_uint8 s_tdefl_large_dist_extra[128] = {
+ 0, 0, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10,
+ 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13
+};
+
+/* Radix sorts tdefl_sym_freq[] array by 16-bit key m_key. Returns ptr
+ * to sorted values. */
+typedef struct {
+ mz_uint16 m_key, m_sym_index;
+} tdefl_sym_freq;
+static tdefl_sym_freq *tdefl_radix_sort_syms(mz_uint num_syms,
+ tdefl_sym_freq *pSyms0,
+ tdefl_sym_freq *pSyms1) {
+ mz_uint32 total_passes = 2, pass_shift, pass, i, hist[256 * 2];
+ tdefl_sym_freq *pCur_syms = pSyms0, *pNew_syms = pSyms1;
+ MZ_CLEAR_ARR(hist);
+ for (i = 0; i < num_syms; i++) {
+ mz_uint freq = pSyms0[i].m_key;
+ hist[freq & 0xFF]++;
+ hist[256 + ((freq >> 8) & 0xFF)]++;
+ }
+ while ((total_passes > 1) &&
+ (num_syms == hist[(total_passes - 1) * 256]))
+ total_passes--;
+ for (pass_shift = 0, pass = 0; pass < total_passes;
+ pass++, pass_shift += 8) {
+ const mz_uint32 *pHist = &hist[pass << 8];
+ mz_uint offsets[256], cur_ofs = 0;
+ for (i = 0; i < 256; i++) {
+ offsets[i] = cur_ofs;
+ cur_ofs += pHist[i];
+ }
+ for (i = 0; i < num_syms; i++)
+ pNew_syms[offsets[(pCur_syms[i].m_key >> pass_shift) &
+ 0xFF]++] = pCur_syms[i];
+ {
+ tdefl_sym_freq *t = pCur_syms;
+ pCur_syms = pNew_syms;
+ pNew_syms = t;
+ }
+ }
+ return pCur_syms;
+}
+
+/* tdefl_calculate_minimum_redundancy() originally written by:
+ * Alistair Moffat, alistair@cs.mu.oz.au, Jyrki Katajainen,
+ * jyrki@diku.dk, November 1996. */
+static void tdefl_calculate_minimum_redundancy(tdefl_sym_freq *A,
+ int n) {
+ int root, leaf, next, avbl, used, dpth;
+ if (n == 0)
+ return;
+ else if (n == 1) {
+ A[0].m_key = 1;
+ return;
+ }
+ A[0].m_key += A[1].m_key;
+ root = 0;
+ leaf = 2;
+ for (next = 1; next < n - 1; next++) {
+ if (leaf >= n || A[root].m_key < A[leaf].m_key) {
+ A[next].m_key = A[root].m_key;
+ A[root++].m_key = (mz_uint16) next;
+ } else
+ A[next].m_key = A[leaf++].m_key;
+ if (leaf >= n || (root < next && A[root].m_key < A[leaf].m_key)) {
+ A[next].m_key = (mz_uint16) (A[next].m_key + A[root].m_key);
+ A[root++].m_key = (mz_uint16) next;
+ } else
+ A[next].m_key = (mz_uint16) (A[next].m_key + A[leaf++].m_key);
+ }
+ A[n - 2].m_key = 0;
+ for (next = n - 3; next >= 0; next--)
+ A[next].m_key = A[A[next].m_key].m_key + 1;
+ avbl = 1;
+ used = dpth = 0;
+ root = n - 2;
+ next = n - 1;
+ while (avbl > 0) {
+ while (root >= 0 && (int) A[root].m_key == dpth) {
+ used++;
+ root--;
+ }
+ while (avbl > used) {
+ A[next--].m_key = (mz_uint16) (dpth);
+ avbl--;
+ }
+ avbl = 2 * used;
+ dpth++;
+ used = 0;
+ }
+}
+
+/* Limits canonical Huffman code table's max code size. */
+enum { TDEFL_MAX_SUPPORTED_HUFF_CODESIZE = 32 };
+static void tdefl_huffman_enforce_max_code_size(int *pNum_codes,
+ int code_list_len,
+ int max_code_size) {
+ int i;
+ mz_uint32 total = 0;
+ if (code_list_len <= 1)
+ return;
+ for (i = max_code_size + 1; i <= TDEFL_MAX_SUPPORTED_HUFF_CODESIZE;
+ i++)
+ pNum_codes[max_code_size] += pNum_codes[i];
+ for (i = max_code_size; i > 0; i--)
+ total += (((mz_uint32) pNum_codes[i]) << (max_code_size - i));
+ while (total != (1UL << max_code_size)) {
+ pNum_codes[max_code_size]--;
+ for (i = max_code_size - 1; i > 0; i--)
+ if (pNum_codes[i]) {
+ pNum_codes[i]--;
+ pNum_codes[i + 1] += 2;
+ break;
+ }
+ total--;
+ }
+}
+
+static void tdefl_optimize_huffman_table(tdefl_compressor *d,
+ int table_num, int table_len,
+ int code_size_limit,
+ int static_table) {
+ int i, j, l, num_codes[1 + TDEFL_MAX_SUPPORTED_HUFF_CODESIZE];
+ mz_uint next_code[TDEFL_MAX_SUPPORTED_HUFF_CODESIZE + 1];
+ MZ_CLEAR_ARR(num_codes);
+ if (static_table) {
+ for (i = 0; i < table_len; i++)
+ num_codes[d->m_huff_code_sizes[table_num][i]]++;
+ } else {
+ tdefl_sym_freq syms0[TDEFL_MAX_HUFF_SYMBOLS],
+ syms1[TDEFL_MAX_HUFF_SYMBOLS], *pSyms;
+ int num_used_syms = 0;
+ const mz_uint16 *pSym_count = &d->m_huff_count[table_num][0];
+ for (i = 0; i < table_len; i++)
+ if (pSym_count[i]) {
+ syms0[num_used_syms].m_key = (mz_uint16) pSym_count[i];
+ syms0[num_used_syms++].m_sym_index = (mz_uint16) i;
+ }
+
+ pSyms = tdefl_radix_sort_syms(num_used_syms, syms0, syms1);
+ tdefl_calculate_minimum_redundancy(pSyms, num_used_syms);
+
+ for (i = 0; i < num_used_syms; i++) num_codes[pSyms[i].m_key]++;
+
+ tdefl_huffman_enforce_max_code_size(num_codes, num_used_syms,
+ code_size_limit);
+
+ MZ_CLEAR_ARR(d->m_huff_code_sizes[table_num]);
+ MZ_CLEAR_ARR(d->m_huff_codes[table_num]);
+ for (i = 1, j = num_used_syms; i <= code_size_limit; i++)
+ for (l = num_codes[i]; l > 0; l--)
+ d->m_huff_code_sizes[table_num][pSyms[--j].m_sym_index] =
+ (mz_uint8) (i);
+ }
+
+ next_code[1] = 0;
+ for (j = 0, i = 2; i <= code_size_limit; i++)
+ next_code[i] = j = ((j + num_codes[i - 1]) << 1);
+
+ for (i = 0; i < table_len; i++) {
+ mz_uint rev_code = 0, code, code_size;
+ if ((code_size = d->m_huff_code_sizes[table_num][i]) == 0)
+ continue;
+ code = next_code[code_size]++;
+ for (l = code_size; l > 0; l--, code >>= 1)
+ rev_code = (rev_code << 1) | (code & 1);
+ d->m_huff_codes[table_num][i] = (mz_uint16) rev_code;
+ }
+}
+
+# define TDEFL_PUT_BITS(b, l) \
+ do { \
+ mz_uint bits = b; \
+ mz_uint len = l; \
+ MZ_ASSERT(bits <= ((1U << len) - 1U)); \
+ d->m_bit_buffer |= (bits << d->m_bits_in); \
+ d->m_bits_in += len; \
+ while (d->m_bits_in >= 8) { \
+ if (d->m_pOutput_buf < d->m_pOutput_buf_end) \
+ *d->m_pOutput_buf++ = (mz_uint8) (d->m_bit_buffer); \
+ d->m_bit_buffer >>= 8; \
+ d->m_bits_in -= 8; \
+ } \
+ } \
+ MZ_MACRO_END
+
+# define TDEFL_RLE_PREV_CODE_SIZE() \
+ { \
+ if (rle_repeat_count) { \
+ if (rle_repeat_count < 3) { \
+ d->m_huff_count[2][prev_code_size] = \
+ (mz_uint16) (d->m_huff_count[2][prev_code_size] + \
+ rle_repeat_count); \
+ while (rle_repeat_count--) \
+ packed_code_sizes[num_packed_code_sizes++] = \
+ prev_code_size; \
+ } else { \
+ d->m_huff_count[2][16] = \
+ (mz_uint16) (d->m_huff_count[2][16] + 1); \
+ packed_code_sizes[num_packed_code_sizes++] = 16; \
+ packed_code_sizes[num_packed_code_sizes++] = \
+ (mz_uint8) (rle_repeat_count - 3); \
+ } \
+ rle_repeat_count = 0; \
+ } \
+ }
+
+# define TDEFL_RLE_ZERO_CODE_SIZE() \
+ { \
+ if (rle_z_count) { \
+ if (rle_z_count < 3) { \
+ d->m_huff_count[2][0] = \
+ (mz_uint16) (d->m_huff_count[2][0] + rle_z_count); \
+ while (rle_z_count--) \
+ packed_code_sizes[num_packed_code_sizes++] = 0; \
+ } else if (rle_z_count <= 10) { \
+ d->m_huff_count[2][17] = \
+ (mz_uint16) (d->m_huff_count[2][17] + 1); \
+ packed_code_sizes[num_packed_code_sizes++] = 17; \
+ packed_code_sizes[num_packed_code_sizes++] = \
+ (mz_uint8) (rle_z_count - 3); \
+ } else { \
+ d->m_huff_count[2][18] = \
+ (mz_uint16) (d->m_huff_count[2][18] + 1); \
+ packed_code_sizes[num_packed_code_sizes++] = 18; \
+ packed_code_sizes[num_packed_code_sizes++] = \
+ (mz_uint8) (rle_z_count - 11); \
+ } \
+ rle_z_count = 0; \
+ } \
+ }
+
+static const mz_uint8 s_tdefl_packed_code_size_syms_swizzle[] = {
+ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
+};
+
+static void tdefl_start_dynamic_block(tdefl_compressor *d) {
+ int num_lit_codes, num_dist_codes, num_bit_lengths;
+ mz_uint i, total_code_sizes_to_pack, num_packed_code_sizes,
+ rle_z_count, rle_repeat_count, packed_code_sizes_index;
+ mz_uint8 code_sizes_to_pack[TDEFL_MAX_HUFF_SYMBOLS_0 +
+ TDEFL_MAX_HUFF_SYMBOLS_1],
+ packed_code_sizes[TDEFL_MAX_HUFF_SYMBOLS_0 +
+ TDEFL_MAX_HUFF_SYMBOLS_1],
+ prev_code_size = 0xFF;
+
+ d->m_huff_count[0][256] = 1;
+
+ tdefl_optimize_huffman_table(d, 0, TDEFL_MAX_HUFF_SYMBOLS_0, 15,
+ MZ_FALSE);
+ tdefl_optimize_huffman_table(d, 1, TDEFL_MAX_HUFF_SYMBOLS_1, 15,
+ MZ_FALSE);
+
+ for (num_lit_codes = 286; num_lit_codes > 257; num_lit_codes--)
+ if (d->m_huff_code_sizes[0][num_lit_codes - 1])
+ break;
+ for (num_dist_codes = 30; num_dist_codes > 1; num_dist_codes--)
+ if (d->m_huff_code_sizes[1][num_dist_codes - 1])
+ break;
+
+ memcpy(code_sizes_to_pack, &d->m_huff_code_sizes[0][0],
+ num_lit_codes);
+ memcpy(code_sizes_to_pack + num_lit_codes,
+ &d->m_huff_code_sizes[1][0], num_dist_codes);
+ total_code_sizes_to_pack = num_lit_codes + num_dist_codes;
+ num_packed_code_sizes = 0;
+ rle_z_count = 0;
+ rle_repeat_count = 0;
+
+ memset(&d->m_huff_count[2][0], 0,
+ sizeof(d->m_huff_count[2][0]) * TDEFL_MAX_HUFF_SYMBOLS_2);
+ for (i = 0; i < total_code_sizes_to_pack; i++) {
+ mz_uint8 code_size = code_sizes_to_pack[i];
+ if (!code_size) {
+ TDEFL_RLE_PREV_CODE_SIZE();
+ if (++rle_z_count == 138) {
+ TDEFL_RLE_ZERO_CODE_SIZE();
+ }
+ } else {
+ TDEFL_RLE_ZERO_CODE_SIZE();
+ if (code_size != prev_code_size) {
+ TDEFL_RLE_PREV_CODE_SIZE();
+ d->m_huff_count[2][code_size] =
+ (mz_uint16) (d->m_huff_count[2][code_size] + 1);
+ packed_code_sizes[num_packed_code_sizes++] = code_size;
+ } else if (++rle_repeat_count == 6) {
+ TDEFL_RLE_PREV_CODE_SIZE();
+ }
+ }
+ prev_code_size = code_size;
+ }
+ if (rle_repeat_count) {
+ TDEFL_RLE_PREV_CODE_SIZE();
+ } else {
+ TDEFL_RLE_ZERO_CODE_SIZE();
+ }
+
+ tdefl_optimize_huffman_table(d, 2, TDEFL_MAX_HUFF_SYMBOLS_2, 7,
+ MZ_FALSE);
+
+ TDEFL_PUT_BITS(2, 2);
+
+ TDEFL_PUT_BITS(num_lit_codes - 257, 5);
+ TDEFL_PUT_BITS(num_dist_codes - 1, 5);
+
+ for (num_bit_lengths = 18; num_bit_lengths >= 0; num_bit_lengths--)
+ if (d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle
+ [num_bit_lengths]])
+ break;
+ num_bit_lengths = MZ_MAX(4, (num_bit_lengths + 1));
+ TDEFL_PUT_BITS(num_bit_lengths - 4, 4);
+ for (i = 0; (int) i < num_bit_lengths; i++)
+ TDEFL_PUT_BITS(d->m_huff_code_sizes
+ [2][s_tdefl_packed_code_size_syms_swizzle[i]],
+ 3);
+
+ for (packed_code_sizes_index = 0;
+ packed_code_sizes_index < num_packed_code_sizes;) {
+ mz_uint code = packed_code_sizes[packed_code_sizes_index++];
+ MZ_ASSERT(code < TDEFL_MAX_HUFF_SYMBOLS_2);
+ TDEFL_PUT_BITS(d->m_huff_codes[2][code],
+ d->m_huff_code_sizes[2][code]);
+ if (code >= 16)
+ TDEFL_PUT_BITS(packed_code_sizes[packed_code_sizes_index++],
+ "\02\03\07"[code - 16]);
+ }
+}
+
+static void tdefl_start_static_block(tdefl_compressor *d) {
+ mz_uint i;
+ mz_uint8 *p = &d->m_huff_code_sizes[0][0];
+
+ for (i = 0; i <= 143; ++i) *p++ = 8;
+ for (; i <= 255; ++i) *p++ = 9;
+ for (; i <= 279; ++i) *p++ = 7;
+ for (; i <= 287; ++i) *p++ = 8;
+
+ memset(d->m_huff_code_sizes[1], 5, 32);
+
+ tdefl_optimize_huffman_table(d, 0, 288, 15, MZ_TRUE);
+ tdefl_optimize_huffman_table(d, 1, 32, 15, MZ_TRUE);
+
+ TDEFL_PUT_BITS(1, 2);
+}
+
+static const mz_uint mz_bitmasks[17] = {
+ 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F,
+ 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF,
+ 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF
+};
+
+# if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && \
+ MINIZ_HAS_64BIT_REGISTERS
+static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d) {
+ mz_uint flags;
+ mz_uint8 *pLZ_codes;
+ mz_uint8 *pOutput_buf = d->m_pOutput_buf;
+ mz_uint8 *pLZ_code_buf_end = d->m_pLZ_code_buf;
+ mz_uint64 bit_buffer = d->m_bit_buffer;
+ mz_uint bits_in = d->m_bits_in;
+
+# define TDEFL_PUT_BITS_FAST(b, l) \
+ { \
+ bit_buffer |= (((mz_uint64) (b)) << bits_in); \
+ bits_in += (l); \
+ }
+
+ flags = 1;
+ for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < pLZ_code_buf_end;
+ flags >>= 1) {
+ if (flags == 1)
+ flags = *pLZ_codes++ | 0x100;
+
+ if (flags & 1) {
+ mz_uint s0, s1, n0, n1, sym, num_extra_bits;
+ mz_uint match_len = pLZ_codes[0];
+ mz_uint match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8));
+ pLZ_codes += 3;
+
+ MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
+ TDEFL_PUT_BITS_FAST(
+ d->m_huff_codes[0][s_tdefl_len_sym[match_len]],
+ d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
+ TDEFL_PUT_BITS_FAST(
+ match_len & mz_bitmasks[s_tdefl_len_extra[match_len]],
+ s_tdefl_len_extra[match_len]);
+
+ /* This sequence coaxes MSVC into using cmov's vs. jmp's. */
+ s0 = s_tdefl_small_dist_sym[match_dist & 511];
+ n0 = s_tdefl_small_dist_extra[match_dist & 511];
+ s1 = s_tdefl_large_dist_sym[match_dist >> 8];
+ n1 = s_tdefl_large_dist_extra[match_dist >> 8];
+ sym = (match_dist < 512) ? s0 : s1;
+ num_extra_bits = (match_dist < 512) ? n0 : n1;
+
+ MZ_ASSERT(d->m_huff_code_sizes[1][sym]);
+ TDEFL_PUT_BITS_FAST(d->m_huff_codes[1][sym],
+ d->m_huff_code_sizes[1][sym]);
+ TDEFL_PUT_BITS_FAST(match_dist & mz_bitmasks[num_extra_bits],
+ num_extra_bits);
+ } else {
+ mz_uint lit = *pLZ_codes++;
+ MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
+ TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit],
+ d->m_huff_code_sizes[0][lit]);
+
+ if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end)) {
+ flags >>= 1;
+ lit = *pLZ_codes++;
+ MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
+ TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit],
+ d->m_huff_code_sizes[0][lit]);
+
+ if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end)) {
+ flags >>= 1;
+ lit = *pLZ_codes++;
+ MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
+ TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit],
+ d->m_huff_code_sizes[0][lit]);
+ }
+ }
+ }
+
+ if (pOutput_buf >= d->m_pOutput_buf_end)
+ return MZ_FALSE;
+
+ memcpy(pOutput_buf, &bit_buffer, sizeof(mz_uint64));
+ pOutput_buf += (bits_in >> 3);
+ bit_buffer >>= (bits_in & ~7);
+ bits_in &= 7;
+ }
+
+# undef TDEFL_PUT_BITS_FAST
+
+ d->m_pOutput_buf = pOutput_buf;
+ d->m_bits_in = 0;
+ d->m_bit_buffer = 0;
+
+ while (bits_in) {
+ mz_uint32 n = MZ_MIN(bits_in, 16);
+ TDEFL_PUT_BITS((mz_uint) bit_buffer & mz_bitmasks[n], n);
+ bit_buffer >>= n;
+ bits_in -= n;
+ }
+
+ TDEFL_PUT_BITS(d->m_huff_codes[0][256],
+ d->m_huff_code_sizes[0][256]);
+
+ return (d->m_pOutput_buf < d->m_pOutput_buf_end);
+}
+# else
+static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d) {
+ mz_uint flags;
+ mz_uint8 *pLZ_codes;
+
+ flags = 1;
+ for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < d->m_pLZ_code_buf;
+ flags >>= 1) {
+ if (flags == 1)
+ flags = *pLZ_codes++ | 0x100;
+ if (flags & 1) {
+ mz_uint sym, num_extra_bits;
+ mz_uint match_len = pLZ_codes[0],
+ match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8));
+ pLZ_codes += 3;
+
+ MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
+ TDEFL_PUT_BITS(
+ d->m_huff_codes[0][s_tdefl_len_sym[match_len]],
+ d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]);
+ TDEFL_PUT_BITS(match_len &
+ mz_bitmasks[s_tdefl_len_extra[match_len]],
+ s_tdefl_len_extra[match_len]);
+
+ if (match_dist < 512) {
+ sym = s_tdefl_small_dist_sym[match_dist];
+ num_extra_bits = s_tdefl_small_dist_extra[match_dist];
+ } else {
+ sym = s_tdefl_large_dist_sym[match_dist >> 8];
+ num_extra_bits = s_tdefl_large_dist_extra[match_dist >> 8];
+ }
+ MZ_ASSERT(d->m_huff_code_sizes[1][sym]);
+ TDEFL_PUT_BITS(d->m_huff_codes[1][sym],
+ d->m_huff_code_sizes[1][sym]);
+ TDEFL_PUT_BITS(match_dist & mz_bitmasks[num_extra_bits],
+ num_extra_bits);
+ } else {
+ mz_uint lit = *pLZ_codes++;
+ MZ_ASSERT(d->m_huff_code_sizes[0][lit]);
+ TDEFL_PUT_BITS(d->m_huff_codes[0][lit],
+ d->m_huff_code_sizes[0][lit]);
+ }
+ }
+
+ TDEFL_PUT_BITS(d->m_huff_codes[0][256],
+ d->m_huff_code_sizes[0][256]);
+
+ return (d->m_pOutput_buf < d->m_pOutput_buf_end);
+}
+# endif /* MINIZ_USE_UNALIGNED_LOADS_AND_STORES && \
+ MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS */
+
+static mz_bool tdefl_compress_block(tdefl_compressor *d,
+ mz_bool static_block) {
+ if (static_block)
+ tdefl_start_static_block(d);
+ else
+ tdefl_start_dynamic_block(d);
+ return tdefl_compress_lz_codes(d);
+}
+
+static const mz_uint s_tdefl_num_probes[11] = { 0, 1, 6, 32,
+ 16, 32, 128, 256,
+ 512, 768, 1500 };
+
+static int tdefl_flush_block(tdefl_compressor *d, int flush) {
+ mz_uint saved_bit_buf, saved_bits_in;
+ mz_uint8 *pSaved_output_buf;
+ mz_bool comp_block_succeeded = MZ_FALSE;
+ int n,
+ use_raw_block = ((d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS) !=
+ 0) &&
+ (d->m_lookahead_pos -
+ d->m_lz_code_buf_dict_pos) <= d->m_dict_size;
+ mz_uint8 *pOutput_buf_start =
+ ((d->m_pPut_buf_func == NULL) &&
+ ((*d->m_pOut_buf_size - d->m_out_buf_ofs) >=
+ TDEFL_OUT_BUF_SIZE))
+ ? ((mz_uint8 *) d->m_pOut_buf + d->m_out_buf_ofs)
+ : d->m_output_buf;
+
+ d->m_pOutput_buf = pOutput_buf_start;
+ d->m_pOutput_buf_end = d->m_pOutput_buf + TDEFL_OUT_BUF_SIZE - 16;
+
+ MZ_ASSERT(!d->m_output_flush_remaining);
+ d->m_output_flush_ofs = 0;
+ d->m_output_flush_remaining = 0;
+
+ *d->m_pLZ_flags = (mz_uint8) (*d->m_pLZ_flags >>
+ d->m_num_flags_left);
+ d->m_pLZ_code_buf -= (d->m_num_flags_left == 8);
+
+ if ((d->m_flags & TDEFL_WRITE_ZLIB_HEADER) && (!d->m_block_index)) {
+ const mz_uint8 cmf = 0x78;
+ mz_uint8 flg, flevel = 3;
+ mz_uint header, i,
+ mz_un = sizeof(s_tdefl_num_probes) / sizeof(mz_uint);
+
+ /* Determine compression level by reversing the process in
+ * tdefl_create_comp_flags_from_zip_params() */
+ for (i = 0; i < mz_un; i++)
+ if (s_tdefl_num_probes[i] == (d->m_flags & 0xFFF))
+ break;
+
+ if (i < 2)
+ flevel = 0;
+ else if (i < 6)
+ flevel = 1;
+ else if (i == 6)
+ flevel = 2;
+
+ header = cmf << 8 | (flevel << 6);
+ header += 31 - (header % 31);
+ flg = header & 0xFF;
+
+ TDEFL_PUT_BITS(cmf, 8);
+ TDEFL_PUT_BITS(flg, 8);
+ }
+
+ TDEFL_PUT_BITS(flush == TDEFL_FINISH, 1);
+
+ pSaved_output_buf = d->m_pOutput_buf;
+ saved_bit_buf = d->m_bit_buffer;
+ saved_bits_in = d->m_bits_in;
+
+ if (!use_raw_block)
+ comp_block_succeeded = tdefl_compress_block(
+ d, (d->m_flags & TDEFL_FORCE_ALL_STATIC_BLOCKS) ||
+ (d->m_total_lz_bytes < 48));
+
+ /* If the block gets expanded, forget the current contents of the
+ * output buffer and send a raw block instead. */
+ if (((use_raw_block) || ((d->m_total_lz_bytes) &&
+ ((d->m_pOutput_buf - pSaved_output_buf +
+ 1U) >= d->m_total_lz_bytes))) &&
+ ((d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <=
+ d->m_dict_size)) {
+ mz_uint i;
+ d->m_pOutput_buf = pSaved_output_buf;
+ d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
+ TDEFL_PUT_BITS(0, 2);
+ if (d->m_bits_in) {
+ TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
+ }
+ for (i = 2; i; --i, d->m_total_lz_bytes ^= 0xFFFF) {
+ TDEFL_PUT_BITS(d->m_total_lz_bytes & 0xFFFF, 16);
+ }
+ for (i = 0; i < d->m_total_lz_bytes; ++i) {
+ TDEFL_PUT_BITS(d->m_dict[(d->m_lz_code_buf_dict_pos + i) &
+ TDEFL_LZ_DICT_SIZE_MASK],
+ 8);
+ }
+ }
+ /* Check for the extremely unlikely (if not impossible) case of the
+ compressed block not fitting into the output buffer when using
+ dynamic codes. */
+ else if (!comp_block_succeeded) {
+ d->m_pOutput_buf = pSaved_output_buf;
+ d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in;
+ tdefl_compress_block(d, MZ_TRUE);
+ }
+
+ if (flush) {
+ if (flush == TDEFL_FINISH) {
+ if (d->m_bits_in) {
+ TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
+ }
+ if (d->m_flags & TDEFL_WRITE_ZLIB_HEADER) {
+ mz_uint i, a = d->m_adler32;
+ for (i = 0; i < 4; i++) {
+ TDEFL_PUT_BITS((a >> 24) & 0xFF, 8);
+ a <<= 8;
+ }
+ }
+ } else {
+ mz_uint i, z = 0;
+ TDEFL_PUT_BITS(0, 3);
+ if (d->m_bits_in) {
+ TDEFL_PUT_BITS(0, 8 - d->m_bits_in);
+ }
+ for (i = 2; i; --i, z ^= 0xFFFF) {
+ TDEFL_PUT_BITS(z & 0xFFFF, 16);
+ }
+ }
+ }
+
+ MZ_ASSERT(d->m_pOutput_buf < d->m_pOutput_buf_end);
+
+ memset(&d->m_huff_count[0][0], 0,
+ sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
+ memset(&d->m_huff_count[1][0], 0,
+ sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);
+
+ d->m_pLZ_code_buf = d->m_lz_code_buf + 1;
+ d->m_pLZ_flags = d->m_lz_code_buf;
+ d->m_num_flags_left = 8;
+ d->m_lz_code_buf_dict_pos += d->m_total_lz_bytes;
+ d->m_total_lz_bytes = 0;
+ d->m_block_index++;
+
+ if ((n = (int) (d->m_pOutput_buf - pOutput_buf_start)) != 0) {
+ if (d->m_pPut_buf_func) {
+ *d->m_pIn_buf_size = d->m_pSrc -
+ (const mz_uint8 *) d->m_pIn_buf;
+ if (!(*d->m_pPut_buf_func)(d->m_output_buf, n,
+ d->m_pPut_buf_user))
+ return (
+ d->m_prev_return_status = TDEFL_STATUS_PUT_BUF_FAILED);
+ } else if (pOutput_buf_start == d->m_output_buf) {
+ int bytes_to_copy = (int) MZ_MIN(
+ (size_t) n,
+ (size_t) (*d->m_pOut_buf_size - d->m_out_buf_ofs));
+ memcpy((mz_uint8 *) d->m_pOut_buf + d->m_out_buf_ofs,
+ d->m_output_buf, bytes_to_copy);
+ d->m_out_buf_ofs += bytes_to_copy;
+ if ((n -= bytes_to_copy) != 0) {
+ d->m_output_flush_ofs = bytes_to_copy;
+ d->m_output_flush_remaining = n;
+ }
+ } else {
+ d->m_out_buf_ofs += n;
+ }
+ }
+
+ return d->m_output_flush_remaining;
+}
+
+# if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
+# ifdef MINIZ_UNALIGNED_USE_MEMCPY
+static mz_uint16 TDEFL_READ_UNALIGNED_WORD(const mz_uint8 *p) {
+ mz_uint16 ret;
+ memcpy(&ret, p, sizeof(mz_uint16));
+ return ret;
+}
+static mz_uint16 TDEFL_READ_UNALIGNED_WORD2(const mz_uint16 *p) {
+ mz_uint16 ret;
+ memcpy(&ret, p, sizeof(mz_uint16));
+ return ret;
+}
+# else
+# define TDEFL_READ_UNALIGNED_WORD(p) *(const mz_uint16 *) (p)
+# define TDEFL_READ_UNALIGNED_WORD2(p) *(const mz_uint16 *) (p)
+# endif
+static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d,
+ mz_uint lookahead_pos,
+ mz_uint max_dist,
+ mz_uint max_match_len,
+ mz_uint *pMatch_dist,
+ mz_uint *pMatch_len) {
+ mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK,
+ match_len = *pMatch_len, probe_pos = pos,
+ next_probe_pos, probe_len;
+ mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
+ const mz_uint16 *s = (const mz_uint16 *) (d->m_dict + pos), *p, *q;
+ mz_uint16 c01 = TDEFL_READ_UNALIGNED_WORD(
+ &d->m_dict[pos + match_len - 1]),
+ s01 = TDEFL_READ_UNALIGNED_WORD2(s);
+ MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN);
+ if (max_match_len <= match_len)
+ return;
+ for (;;) {
+ for (;;) {
+ if (--num_probes_left == 0)
+ return;
+# define TDEFL_PROBE \
+ next_probe_pos = d->m_next[probe_pos]; \
+ if ((!next_probe_pos) || \
+ ((dist = (mz_uint16) (lookahead_pos - next_probe_pos)) > \
+ max_dist)) \
+ return; \
+ probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \
+ if (TDEFL_READ_UNALIGNED_WORD( \
+ &d->m_dict[probe_pos + match_len - 1]) == c01) \
+ break;
+ TDEFL_PROBE;
+ TDEFL_PROBE;
+ TDEFL_PROBE;
+ }
+ if (!dist)
+ break;
+ q = (const mz_uint16 *) (d->m_dict + probe_pos);
+ if (TDEFL_READ_UNALIGNED_WORD2(q) != s01)
+ continue;
+ p = s;
+ probe_len = 32;
+ do {
+ } while ((TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (--probe_len > 0));
+ if (!probe_len) {
+ *pMatch_dist = dist;
+ *pMatch_len = MZ_MIN(max_match_len,
+ (mz_uint) TDEFL_MAX_MATCH_LEN);
+ break;
+ } else if ((probe_len = ((mz_uint) (p - s) * 2) +
+ (mz_uint) (*(const mz_uint8 *) p ==
+ *(const mz_uint8 *) q)) >
+ match_len) {
+ *pMatch_dist = dist;
+ if ((*pMatch_len = match_len = MZ_MIN(
+ max_match_len, probe_len)) == max_match_len)
+ break;
+ c01 = TDEFL_READ_UNALIGNED_WORD(
+ &d->m_dict[pos + match_len - 1]);
+ }
+ }
+}
+# else
+static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d,
+ mz_uint lookahead_pos,
+ mz_uint max_dist,
+ mz_uint max_match_len,
+ mz_uint *pMatch_dist,
+ mz_uint *pMatch_len) {
+ mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK,
+ match_len = *pMatch_len, probe_pos = pos,
+ next_probe_pos, probe_len;
+ mz_uint num_probes_left = d->m_max_probes[match_len >= 32];
+ const mz_uint8 *s = d->m_dict + pos, *p, *q;
+ mz_uint8 c0 = d->m_dict[pos + match_len],
+ c1 = d->m_dict[pos + match_len - 1];
+ MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN);
+ if (max_match_len <= match_len)
+ return;
+ for (;;) {
+ for (;;) {
+ if (--num_probes_left == 0)
+ return;
+# define TDEFL_PROBE \
+ next_probe_pos = d->m_next[probe_pos]; \
+ if ((!next_probe_pos) || \
+ ((dist = (mz_uint16) (lookahead_pos - next_probe_pos)) > \
+ max_dist)) \
+ return; \
+ probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \
+ if ((d->m_dict[probe_pos + match_len] == c0) && \
+ (d->m_dict[probe_pos + match_len - 1] == c1)) \
+ break;
+ TDEFL_PROBE;
+ TDEFL_PROBE;
+ TDEFL_PROBE;
+ }
+ if (!dist)
+ break;
+ p = s;
+ q = d->m_dict + probe_pos;
+ for (probe_len = 0; probe_len < max_match_len; probe_len++)
+ if (*p++ != *q++)
+ break;
+ if (probe_len > match_len) {
+ *pMatch_dist = dist;
+ if ((*pMatch_len = match_len = probe_len) == max_match_len)
+ return;
+ c0 = d->m_dict[pos + match_len];
+ c1 = d->m_dict[pos + match_len - 1];
+ }
+ }
+}
+# endif /* #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES */
+
+# if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
+# ifdef MINIZ_UNALIGNED_USE_MEMCPY
+static mz_uint32 TDEFL_READ_UNALIGNED_WORD32(const mz_uint8 *p) {
+ mz_uint32 ret;
+ memcpy(&ret, p, sizeof(mz_uint32));
+ return ret;
+}
+# else
+# define TDEFL_READ_UNALIGNED_WORD32(p) *(const mz_uint32 *) (p)
+# endif
+static mz_bool tdefl_compress_fast(tdefl_compressor *d) {
+ /* Faster, minimally featured LZRW1-style match+parse loop with
+ * better register utilization. Intended for applications where raw
+ * throughput is valued more highly than ratio. */
+ mz_uint lookahead_pos = d->m_lookahead_pos,
+ lookahead_size = d->m_lookahead_size,
+ dict_size = d->m_dict_size,
+ total_lz_bytes = d->m_total_lz_bytes,
+ num_flags_left = d->m_num_flags_left;
+ mz_uint8 *pLZ_code_buf = d->m_pLZ_code_buf,
+ *pLZ_flags = d->m_pLZ_flags;
+ mz_uint cur_pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK;
+
+ while ((d->m_src_buf_left) || ((d->m_flush) && (lookahead_size))) {
+ const mz_uint TDEFL_COMP_FAST_LOOKAHEAD_SIZE = 4096;
+ mz_uint dst_pos = (lookahead_pos + lookahead_size) &
+ TDEFL_LZ_DICT_SIZE_MASK;
+ mz_uint num_bytes_to_process = (mz_uint) MZ_MIN(
+ d->m_src_buf_left,
+ TDEFL_COMP_FAST_LOOKAHEAD_SIZE - lookahead_size);
+ d->m_src_buf_left -= num_bytes_to_process;
+ lookahead_size += num_bytes_to_process;
+
+ while (num_bytes_to_process) {
+ mz_uint32 n = MZ_MIN(TDEFL_LZ_DICT_SIZE - dst_pos,
+ num_bytes_to_process);
+ memcpy(d->m_dict + dst_pos, d->m_pSrc, n);
+ if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
+ memcpy(d->m_dict + TDEFL_LZ_DICT_SIZE + dst_pos, d->m_pSrc,
+ MZ_MIN(n, (TDEFL_MAX_MATCH_LEN - 1) - dst_pos));
+ d->m_pSrc += n;
+ dst_pos = (dst_pos + n) & TDEFL_LZ_DICT_SIZE_MASK;
+ num_bytes_to_process -= n;
+ }
+
+ dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - lookahead_size,
+ dict_size);
+ if ((!d->m_flush) &&
+ (lookahead_size < TDEFL_COMP_FAST_LOOKAHEAD_SIZE))
+ break;
+
+ while (lookahead_size >= 4) {
+ mz_uint cur_match_dist, cur_match_len = 1;
+ mz_uint8 *pCur_dict = d->m_dict + cur_pos;
+ mz_uint first_trigram = TDEFL_READ_UNALIGNED_WORD32(pCur_dict) &
+ 0xFFFFFF;
+ mz_uint hash = (first_trigram ^
+ (first_trigram >>
+ (24 - (TDEFL_LZ_HASH_BITS - 8)))) &
+ TDEFL_LEVEL1_HASH_SIZE_MASK;
+ mz_uint probe_pos = d->m_hash[hash];
+ d->m_hash[hash] = (mz_uint16) lookahead_pos;
+
+ if (((cur_match_dist = (mz_uint16) (lookahead_pos -
+ probe_pos)) <= dict_size) &&
+ ((TDEFL_READ_UNALIGNED_WORD32(
+ d->m_dict + (probe_pos &= TDEFL_LZ_DICT_SIZE_MASK)) &
+ 0xFFFFFF) == first_trigram)) {
+ const mz_uint16 *p = (const mz_uint16 *) pCur_dict;
+ const mz_uint16 *q = (const mz_uint16 *) (d->m_dict +
+ probe_pos);
+ mz_uint32 probe_len = 32;
+ do {
+ } while ((TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (TDEFL_READ_UNALIGNED_WORD2(++p) ==
+ TDEFL_READ_UNALIGNED_WORD2(++q)) &&
+ (--probe_len > 0));
+ cur_match_len =
+ ((mz_uint) (p - (const mz_uint16 *) pCur_dict) * 2) +
+ (mz_uint) (*(const mz_uint8 *) p ==
+ *(const mz_uint8 *) q);
+ if (!probe_len)
+ cur_match_len = cur_match_dist ? TDEFL_MAX_MATCH_LEN : 0;
+
+ if ((cur_match_len < TDEFL_MIN_MATCH_LEN) ||
+ ((cur_match_len == TDEFL_MIN_MATCH_LEN) &&
+ (cur_match_dist >= 8U * 1024U))) {
+ cur_match_len = 1;
+ *pLZ_code_buf++ = (mz_uint8) first_trigram;
+ *pLZ_flags = (mz_uint8) (*pLZ_flags >> 1);
+ d->m_huff_count[0][(mz_uint8) first_trigram]++;
+ } else {
+ mz_uint32 s0, s1;
+ cur_match_len = MZ_MIN(cur_match_len, lookahead_size);
+
+ MZ_ASSERT((cur_match_len >= TDEFL_MIN_MATCH_LEN) &&
+ (cur_match_dist >= 1) &&
+ (cur_match_dist <= TDEFL_LZ_DICT_SIZE));
+
+ cur_match_dist--;
+
+ pLZ_code_buf[0] = (mz_uint8) (cur_match_len -
+ TDEFL_MIN_MATCH_LEN);
+# ifdef MINIZ_UNALIGNED_USE_MEMCPY
+ memcpy(&pLZ_code_buf[1], &cur_match_dist,
+ sizeof(cur_match_dist));
+# else
+ *(mz_uint16 *) (&pLZ_code_buf[1]) = (mz_uint16)
+ cur_match_dist;
+# endif
+ pLZ_code_buf += 3;
+ *pLZ_flags = (mz_uint8) ((*pLZ_flags >> 1) | 0x80);
+
+ s0 = s_tdefl_small_dist_sym[cur_match_dist & 511];
+ s1 = s_tdefl_large_dist_sym[cur_match_dist >> 8];
+ d->m_huff_count[1][(cur_match_dist < 512) ? s0 : s1]++;
+
+ d->m_huff_count[0][s_tdefl_len_sym[cur_match_len -
+ TDEFL_MIN_MATCH_LEN]]++;
+ }
+ } else {
+ *pLZ_code_buf++ = (mz_uint8) first_trigram;
+ *pLZ_flags = (mz_uint8) (*pLZ_flags >> 1);
+ d->m_huff_count[0][(mz_uint8) first_trigram]++;
+ }
+
+ if (--num_flags_left == 0) {
+ num_flags_left = 8;
+ pLZ_flags = pLZ_code_buf++;
+ }
+
+ total_lz_bytes += cur_match_len;
+ lookahead_pos += cur_match_len;
+ dict_size = MZ_MIN(dict_size + cur_match_len,
+ (mz_uint) TDEFL_LZ_DICT_SIZE);
+ cur_pos = (cur_pos + cur_match_len) & TDEFL_LZ_DICT_SIZE_MASK;
+ MZ_ASSERT(lookahead_size >= cur_match_len);
+ lookahead_size -= cur_match_len;
+
+ if (pLZ_code_buf >
+ &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) {
+ int n;
+ d->m_lookahead_pos = lookahead_pos;
+ d->m_lookahead_size = lookahead_size;
+ d->m_dict_size = dict_size;
+ d->m_total_lz_bytes = total_lz_bytes;
+ d->m_pLZ_code_buf = pLZ_code_buf;
+ d->m_pLZ_flags = pLZ_flags;
+ d->m_num_flags_left = num_flags_left;
+ if ((n = tdefl_flush_block(d, 0)) != 0)
+ return (n < 0) ? MZ_FALSE : MZ_TRUE;
+ total_lz_bytes = d->m_total_lz_bytes;
+ pLZ_code_buf = d->m_pLZ_code_buf;
+ pLZ_flags = d->m_pLZ_flags;
+ num_flags_left = d->m_num_flags_left;
+ }
+ }
+
+ while (lookahead_size) {
+ mz_uint8 lit = d->m_dict[cur_pos];
+
+ total_lz_bytes++;
+ *pLZ_code_buf++ = lit;
+ *pLZ_flags = (mz_uint8) (*pLZ_flags >> 1);
+ if (--num_flags_left == 0) {
+ num_flags_left = 8;
+ pLZ_flags = pLZ_code_buf++;
+ }
+
+ d->m_huff_count[0][lit]++;
+
+ lookahead_pos++;
+ dict_size = MZ_MIN(dict_size + 1, (mz_uint) TDEFL_LZ_DICT_SIZE);
+ cur_pos = (cur_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK;
+ lookahead_size--;
+
+ if (pLZ_code_buf >
+ &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) {
+ int n;
+ d->m_lookahead_pos = lookahead_pos;
+ d->m_lookahead_size = lookahead_size;
+ d->m_dict_size = dict_size;
+ d->m_total_lz_bytes = total_lz_bytes;
+ d->m_pLZ_code_buf = pLZ_code_buf;
+ d->m_pLZ_flags = pLZ_flags;
+ d->m_num_flags_left = num_flags_left;
+ if ((n = tdefl_flush_block(d, 0)) != 0)
+ return (n < 0) ? MZ_FALSE : MZ_TRUE;
+ total_lz_bytes = d->m_total_lz_bytes;
+ pLZ_code_buf = d->m_pLZ_code_buf;
+ pLZ_flags = d->m_pLZ_flags;
+ num_flags_left = d->m_num_flags_left;
+ }
+ }
+ }
+
+ d->m_lookahead_pos = lookahead_pos;
+ d->m_lookahead_size = lookahead_size;
+ d->m_dict_size = dict_size;
+ d->m_total_lz_bytes = total_lz_bytes;
+ d->m_pLZ_code_buf = pLZ_code_buf;
+ d->m_pLZ_flags = pLZ_flags;
+ d->m_num_flags_left = num_flags_left;
+ return MZ_TRUE;
+}
+# endif /* MINIZ_USE_UNALIGNED_LOADS_AND_STORES && \
+ MINIZ_LITTLE_ENDIAN */
+
+static MZ_FORCEINLINE void tdefl_record_literal(tdefl_compressor *d,
+ mz_uint8 lit) {
+ d->m_total_lz_bytes++;
+ *d->m_pLZ_code_buf++ = lit;
+ *d->m_pLZ_flags = (mz_uint8) (*d->m_pLZ_flags >> 1);
+ if (--d->m_num_flags_left == 0) {
+ d->m_num_flags_left = 8;
+ d->m_pLZ_flags = d->m_pLZ_code_buf++;
+ }
+ d->m_huff_count[0][lit]++;
+}
+
+static MZ_FORCEINLINE void tdefl_record_match(tdefl_compressor *d,
+ mz_uint match_len,
+ mz_uint match_dist) {
+ mz_uint32 s0, s1;
+
+ MZ_ASSERT((match_len >= TDEFL_MIN_MATCH_LEN) && (match_dist >= 1) &&
+ (match_dist <= TDEFL_LZ_DICT_SIZE));
+
+ d->m_total_lz_bytes += match_len;
+
+ d->m_pLZ_code_buf[0] = (mz_uint8) (match_len - TDEFL_MIN_MATCH_LEN);
+
+ match_dist -= 1;
+ d->m_pLZ_code_buf[1] = (mz_uint8) (match_dist & 0xFF);
+ d->m_pLZ_code_buf[2] = (mz_uint8) (match_dist >> 8);
+ d->m_pLZ_code_buf += 3;
+
+ *d->m_pLZ_flags = (mz_uint8) ((*d->m_pLZ_flags >> 1) | 0x80);
+ if (--d->m_num_flags_left == 0) {
+ d->m_num_flags_left = 8;
+ d->m_pLZ_flags = d->m_pLZ_code_buf++;
+ }
+
+ s0 = s_tdefl_small_dist_sym[match_dist & 511];
+ s1 = s_tdefl_large_dist_sym[(match_dist >> 8) & 127];
+ d->m_huff_count[1][(match_dist < 512) ? s0 : s1]++;
+ d->m_huff_count[0]
+ [s_tdefl_len_sym[match_len - TDEFL_MIN_MATCH_LEN]]++;
+}
+
+static mz_bool tdefl_compress_normal(tdefl_compressor *d) {
+ const mz_uint8 *pSrc = d->m_pSrc;
+ size_t src_buf_left = d->m_src_buf_left;
+ tdefl_flush flush = d->m_flush;
+
+ while ((src_buf_left) || ((flush) && (d->m_lookahead_size))) {
+ mz_uint len_to_move, cur_match_dist, cur_match_len, cur_pos;
+ /* Update dictionary and hash chains. Keeps the lookahead size
+ * equal to TDEFL_MAX_MATCH_LEN. */
+ if ((d->m_lookahead_size + d->m_dict_size) >=
+ (TDEFL_MIN_MATCH_LEN - 1)) {
+ mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) &
+ TDEFL_LZ_DICT_SIZE_MASK,
+ ins_pos = d->m_lookahead_pos + d->m_lookahead_size - 2;
+ mz_uint hash =
+ (d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK]
+ << TDEFL_LZ_HASH_SHIFT) ^
+ d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK];
+ mz_uint num_bytes_to_process = (mz_uint) MZ_MIN(
+ src_buf_left, TDEFL_MAX_MATCH_LEN - d->m_lookahead_size);
+ const mz_uint8 *pSrc_end = pSrc ? pSrc + num_bytes_to_process
+ : NULL;
+ src_buf_left -= num_bytes_to_process;
+ d->m_lookahead_size += num_bytes_to_process;
+ while (pSrc != pSrc_end) {
+ mz_uint8 c = *pSrc++;
+ d->m_dict[dst_pos] = c;
+ if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
+ d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
+ hash = ((hash << TDEFL_LZ_HASH_SHIFT) ^ c) &
+ (TDEFL_LZ_HASH_SIZE - 1);
+ d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] =
+ d->m_hash[hash];
+ d->m_hash[hash] = (mz_uint16) (ins_pos);
+ dst_pos = (dst_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK;
+ ins_pos++;
+ }
+ } else {
+ while ((src_buf_left) &&
+ (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN)) {
+ mz_uint8 c = *pSrc++;
+ mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) &
+ TDEFL_LZ_DICT_SIZE_MASK;
+ src_buf_left--;
+ d->m_dict[dst_pos] = c;
+ if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1))
+ d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c;
+ if ((++d->m_lookahead_size + d->m_dict_size) >=
+ TDEFL_MIN_MATCH_LEN) {
+ mz_uint ins_pos = d->m_lookahead_pos +
+ (d->m_lookahead_size - 1) - 2;
+ mz_uint hash =
+ ((d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK]
+ << (TDEFL_LZ_HASH_SHIFT * 2)) ^
+ (d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK]
+ << TDEFL_LZ_HASH_SHIFT) ^
+ c) &
+ (TDEFL_LZ_HASH_SIZE - 1);
+ d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] =
+ d->m_hash[hash];
+ d->m_hash[hash] = (mz_uint16) (ins_pos);
+ }
+ }
+ }
+ d->m_dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - d->m_lookahead_size,
+ d->m_dict_size);
+ if ((!flush) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN))
+ break;
+
+ /* Simple lazy/greedy parsing state machine. */
+ len_to_move = 1;
+ cur_match_dist = 0;
+ cur_match_len = d->m_saved_match_len ? d->m_saved_match_len
+ : (TDEFL_MIN_MATCH_LEN - 1);
+ cur_pos = d->m_lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK;
+ if (d->m_flags &
+ (TDEFL_RLE_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS)) {
+ if ((d->m_dict_size) &&
+ (!(d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS))) {
+ mz_uint8 c =
+ d->m_dict[(cur_pos - 1) & TDEFL_LZ_DICT_SIZE_MASK];
+ cur_match_len = 0;
+ while (cur_match_len < d->m_lookahead_size) {
+ if (d->m_dict[cur_pos + cur_match_len] != c)
+ break;
+ cur_match_len++;
+ }
+ if (cur_match_len < TDEFL_MIN_MATCH_LEN)
+ cur_match_len = 0;
+ else
+ cur_match_dist = 1;
+ }
+ } else {
+ tdefl_find_match(d, d->m_lookahead_pos, d->m_dict_size,
+ d->m_lookahead_size, &cur_match_dist,
+ &cur_match_len);
+ }
+ if (((cur_match_len == TDEFL_MIN_MATCH_LEN) &&
+ (cur_match_dist >= 8U * 1024U)) ||
+ (cur_pos == cur_match_dist) ||
+ ((d->m_flags & TDEFL_FILTER_MATCHES) &&
+ (cur_match_len <= 5))) {
+ cur_match_dist = cur_match_len = 0;
+ }
+ if (d->m_saved_match_len) {
+ if (cur_match_len > d->m_saved_match_len) {
+ tdefl_record_literal(d, (mz_uint8) d->m_saved_lit);
+ if (cur_match_len >= 128) {
+ tdefl_record_match(d, cur_match_len, cur_match_dist);
+ d->m_saved_match_len = 0;
+ len_to_move = cur_match_len;
+ } else {
+ d->m_saved_lit = d->m_dict[cur_pos];
+ d->m_saved_match_dist = cur_match_dist;
+ d->m_saved_match_len = cur_match_len;
+ }
+ } else {
+ tdefl_record_match(d, d->m_saved_match_len,
+ d->m_saved_match_dist);
+ len_to_move = d->m_saved_match_len - 1;
+ d->m_saved_match_len = 0;
+ }
+ } else if (!cur_match_dist)
+ tdefl_record_literal(
+ d, d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]);
+ else if ((d->m_greedy_parsing) ||
+ (d->m_flags & TDEFL_RLE_MATCHES) ||
+ (cur_match_len >= 128)) {
+ tdefl_record_match(d, cur_match_len, cur_match_dist);
+ len_to_move = cur_match_len;
+ } else {
+ d->m_saved_lit =
+ d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)];
+ d->m_saved_match_dist = cur_match_dist;
+ d->m_saved_match_len = cur_match_len;
+ }
+ /* Move the lookahead forward by len_to_move bytes. */
+ d->m_lookahead_pos += len_to_move;
+ MZ_ASSERT(d->m_lookahead_size >= len_to_move);
+ d->m_lookahead_size -= len_to_move;
+ d->m_dict_size = MZ_MIN(d->m_dict_size + len_to_move,
+ (mz_uint) TDEFL_LZ_DICT_SIZE);
+ /* Check if it's time to flush the current LZ codes to the
+ * internal output buffer. */
+ if ((d->m_pLZ_code_buf >
+ &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) ||
+ ((d->m_total_lz_bytes > 31 * 1024) &&
+ (((((mz_uint) (d->m_pLZ_code_buf - d->m_lz_code_buf) *
+ 115) >>
+ 7) >= d->m_total_lz_bytes) ||
+ (d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS)))) {
+ int n;
+ d->m_pSrc = pSrc;
+ d->m_src_buf_left = src_buf_left;
+ if ((n = tdefl_flush_block(d, 0)) != 0)
+ return (n < 0) ? MZ_FALSE : MZ_TRUE;
+ }
+ }
+
+ d->m_pSrc = pSrc;
+ d->m_src_buf_left = src_buf_left;
+ return MZ_TRUE;
+}
+
+static tdefl_status tdefl_flush_output_buffer(tdefl_compressor *d) {
+ if (d->m_pIn_buf_size) {
+ *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *) d->m_pIn_buf;
+ }
+
+ if (d->m_pOut_buf_size) {
+ size_t n = MZ_MIN(*d->m_pOut_buf_size - d->m_out_buf_ofs,
+ d->m_output_flush_remaining);
+ memcpy((mz_uint8 *) d->m_pOut_buf + d->m_out_buf_ofs,
+ d->m_output_buf + d->m_output_flush_ofs, n);
+ d->m_output_flush_ofs += (mz_uint) n;
+ d->m_output_flush_remaining -= (mz_uint) n;
+ d->m_out_buf_ofs += n;
+
+ *d->m_pOut_buf_size = d->m_out_buf_ofs;
+ }
+
+ return (d->m_finished && !d->m_output_flush_remaining)
+ ? TDEFL_STATUS_DONE
+ : TDEFL_STATUS_OKAY;
+}
+
+tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf,
+ size_t *pIn_buf_size, void *pOut_buf,
+ size_t *pOut_buf_size,
+ tdefl_flush flush) {
+ if (!d) {
+ if (pIn_buf_size)
+ *pIn_buf_size = 0;
+ if (pOut_buf_size)
+ *pOut_buf_size = 0;
+ return TDEFL_STATUS_BAD_PARAM;
+ }
+
+ d->m_pIn_buf = pIn_buf;
+ d->m_pIn_buf_size = pIn_buf_size;
+ d->m_pOut_buf = pOut_buf;
+ d->m_pOut_buf_size = pOut_buf_size;
+ d->m_pSrc = (const mz_uint8 *) (pIn_buf);
+ d->m_src_buf_left = pIn_buf_size ? *pIn_buf_size : 0;
+ d->m_out_buf_ofs = 0;
+ d->m_flush = flush;
+
+ if (((d->m_pPut_buf_func != NULL) ==
+ ((pOut_buf != NULL) || (pOut_buf_size != NULL))) ||
+ (d->m_prev_return_status != TDEFL_STATUS_OKAY) ||
+ (d->m_wants_to_finish && (flush != TDEFL_FINISH)) ||
+ (pIn_buf_size && *pIn_buf_size && !pIn_buf) ||
+ (pOut_buf_size && *pOut_buf_size && !pOut_buf)) {
+ if (pIn_buf_size)
+ *pIn_buf_size = 0;
+ if (pOut_buf_size)
+ *pOut_buf_size = 0;
+ return (d->m_prev_return_status = TDEFL_STATUS_BAD_PARAM);
+ }
+ d->m_wants_to_finish |= (flush == TDEFL_FINISH);
+
+ if ((d->m_output_flush_remaining) || (d->m_finished))
+ return (d->m_prev_return_status = tdefl_flush_output_buffer(d));
+
+# if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
+ if (((d->m_flags & TDEFL_MAX_PROBES_MASK) == 1) &&
+ ((d->m_flags & TDEFL_GREEDY_PARSING_FLAG) != 0) &&
+ ((d->m_flags &
+ (TDEFL_FILTER_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS |
+ TDEFL_RLE_MATCHES)) == 0)) {
+ if (!tdefl_compress_fast(d))
+ return d->m_prev_return_status;
+ } else
+# endif /* #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && \
+ MINIZ_LITTLE_ENDIAN */
+ {
+ if (!tdefl_compress_normal(d))
+ return d->m_prev_return_status;
+ }
+
+ if ((d->m_flags &
+ (TDEFL_WRITE_ZLIB_HEADER | TDEFL_COMPUTE_ADLER32)) &&
+ (pIn_buf))
+ d->m_adler32 = (mz_uint32) mz_adler32(
+ d->m_adler32, (const mz_uint8 *) pIn_buf,
+ d->m_pSrc - (const mz_uint8 *) pIn_buf);
+
+ if ((flush) && (!d->m_lookahead_size) && (!d->m_src_buf_left) &&
+ (!d->m_output_flush_remaining)) {
+ if (tdefl_flush_block(d, flush) < 0)
+ return d->m_prev_return_status;
+ d->m_finished = (flush == TDEFL_FINISH);
+ if (flush == TDEFL_FULL_FLUSH) {
+ MZ_CLEAR_ARR(d->m_hash);
+ MZ_CLEAR_ARR(d->m_next);
+ d->m_dict_size = 0;
+ }
+ }
+
+ return (d->m_prev_return_status = tdefl_flush_output_buffer(d));
+}
+
+tdefl_status tdefl_compress_buffer(tdefl_compressor *d,
+ const void *pIn_buf,
+ size_t in_buf_size,
+ tdefl_flush flush) {
+ MZ_ASSERT(d->m_pPut_buf_func);
+ return tdefl_compress(d, pIn_buf, &in_buf_size, NULL, NULL, flush);
+}
+
+tdefl_status tdefl_init(tdefl_compressor *d,
+ tdefl_put_buf_func_ptr pPut_buf_func,
+ void *pPut_buf_user, int flags) {
+ d->m_pPut_buf_func = pPut_buf_func;
+ d->m_pPut_buf_user = pPut_buf_user;
+ d->m_flags = (mz_uint) (flags);
+ d->m_max_probes[0] = 1 + ((flags & 0xFFF) + 2) / 3;
+ d->m_greedy_parsing = (flags & TDEFL_GREEDY_PARSING_FLAG) != 0;
+ d->m_max_probes[1] = 1 + (((flags & 0xFFF) >> 2) + 2) / 3;
+ if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG))
+ MZ_CLEAR_ARR(d->m_hash);
+ d->m_lookahead_pos = d->m_lookahead_size = d->m_dict_size =
+ d->m_total_lz_bytes = d->m_lz_code_buf_dict_pos = d->m_bits_in =
+ 0;
+ d->m_output_flush_ofs = d->m_output_flush_remaining =
+ d->m_finished = d->m_block_index = d->m_bit_buffer =
+ d->m_wants_to_finish = 0;
+ d->m_pLZ_code_buf = d->m_lz_code_buf + 1;
+ d->m_pLZ_flags = d->m_lz_code_buf;
+ *d->m_pLZ_flags = 0;
+ d->m_num_flags_left = 8;
+ d->m_pOutput_buf = d->m_output_buf;
+ d->m_pOutput_buf_end = d->m_output_buf;
+ d->m_prev_return_status = TDEFL_STATUS_OKAY;
+ d->m_saved_match_dist = d->m_saved_match_len = d->m_saved_lit = 0;
+ d->m_adler32 = 1;
+ d->m_pIn_buf = NULL;
+ d->m_pOut_buf = NULL;
+ d->m_pIn_buf_size = NULL;
+ d->m_pOut_buf_size = NULL;
+ d->m_flush = TDEFL_NO_FLUSH;
+ d->m_pSrc = NULL;
+ d->m_src_buf_left = 0;
+ d->m_out_buf_ofs = 0;
+ if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG))
+ MZ_CLEAR_ARR(d->m_dict);
+ memset(&d->m_huff_count[0][0], 0,
+ sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0);
+ memset(&d->m_huff_count[1][0], 0,
+ sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1);
+ return TDEFL_STATUS_OKAY;
+}
+
+tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d) {
+ return d->m_prev_return_status;
+}
+
+mz_uint32 tdefl_get_adler32(tdefl_compressor *d) {
+ return d->m_adler32;
+}
+
+mz_bool tdefl_compress_mem_to_output(
+ const void *pBuf, size_t buf_len,
+ tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user,
+ int flags) {
+ tdefl_compressor *pComp;
+ mz_bool succeeded;
+ if (((buf_len) && (!pBuf)) || (!pPut_buf_func))
+ return MZ_FALSE;
+ pComp = (tdefl_compressor *) MZ_MALLOC(sizeof(tdefl_compressor));
+ if (!pComp)
+ return MZ_FALSE;
+ succeeded = (tdefl_init(pComp, pPut_buf_func, pPut_buf_user,
+ flags) == TDEFL_STATUS_OKAY);
+ succeeded = succeeded && (tdefl_compress_buffer(
+ pComp, pBuf, buf_len, TDEFL_FINISH) ==
+ TDEFL_STATUS_DONE);
+ MZ_FREE(pComp);
+ return succeeded;
+}
+
+typedef struct {
+ size_t m_size, m_capacity;
+ mz_uint8 *m_pBuf;
+ mz_bool m_expandable;
+} tdefl_output_buffer;
+
+static mz_bool tdefl_output_buffer_putter(const void *pBuf, int len,
+ void *pUser) {
+ tdefl_output_buffer *p = (tdefl_output_buffer *) pUser;
+ size_t new_size = p->m_size + len;
+ if (new_size > p->m_capacity) {
+ size_t new_capacity = p->m_capacity;
+ mz_uint8 *pNew_buf;
+ if (!p->m_expandable)
+ return MZ_FALSE;
+ do {
+ new_capacity = MZ_MAX(128U, new_capacity << 1U);
+ } while (new_size > new_capacity);
+ pNew_buf = (mz_uint8 *) MZ_REALLOC(p->m_pBuf, new_capacity);
+ if (!pNew_buf)
+ return MZ_FALSE;
+ p->m_pBuf = pNew_buf;
+ p->m_capacity = new_capacity;
+ }
+ memcpy((mz_uint8 *) p->m_pBuf + p->m_size, pBuf, len);
+ p->m_size = new_size;
+ return MZ_TRUE;
+}
+
+void *tdefl_compress_mem_to_heap(const void *pSrc_buf,
+ size_t src_buf_len, size_t *pOut_len,
+ int flags) {
+ tdefl_output_buffer out_buf;
+ MZ_CLEAR_OBJ(out_buf);
+ if (!pOut_len)
+ return MZ_FALSE;
+ else
+ *pOut_len = 0;
+ out_buf.m_expandable = MZ_TRUE;
+ if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len,
+ tdefl_output_buffer_putter,
+ &out_buf, flags))
+ return NULL;
+ *pOut_len = out_buf.m_size;
+ return out_buf.m_pBuf;
+}
+
+size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len,
+ const void *pSrc_buf,
+ size_t src_buf_len, int flags) {
+ tdefl_output_buffer out_buf;
+ MZ_CLEAR_OBJ(out_buf);
+ if (!pOut_buf)
+ return 0;
+ out_buf.m_pBuf = (mz_uint8 *) pOut_buf;
+ out_buf.m_capacity = out_buf_len;
+ if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len,
+ tdefl_output_buffer_putter,
+ &out_buf, flags))
+ return 0;
+ return out_buf.m_size;
+}
+
+/* level may actually range from [0,10] (10 is a "hidden" max level,
+ * where we want a bit more compression and it's fine if throughput to
+ * fall off a cliff on some files). */
+mz_uint tdefl_create_comp_flags_from_zip_params(int level,
+ int window_bits,
+ int strategy) {
+ mz_uint comp_flags =
+ s_tdefl_num_probes[(level >= 0) ? MZ_MIN(10, level)
+ : MZ_DEFAULT_LEVEL] |
+ ((level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0);
+ if (window_bits > 0)
+ comp_flags |= TDEFL_WRITE_ZLIB_HEADER;
+
+ if (!level)
+ comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS;
+ else if (strategy == MZ_FILTERED)
+ comp_flags |= TDEFL_FILTER_MATCHES;
+ else if (strategy == MZ_HUFFMAN_ONLY)
+ comp_flags &= ~TDEFL_MAX_PROBES_MASK;
+ else if (strategy == MZ_FIXED)
+ comp_flags |= TDEFL_FORCE_ALL_STATIC_BLOCKS;
+ else if (strategy == MZ_RLE)
+ comp_flags |= TDEFL_RLE_MATCHES;
+
+ return comp_flags;
+}
+
+# ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning( \
+ disable : 4204) /* nonstandard extension used : non-constant \
+ aggregate initializer (also supported by \
+ GNU C and C99, so no big deal) */
+# endif
+
+/* Simple PNG writer function by Alex Evans, 2011. Released into the
+ public domain: https://gist.github.com/908299, more context at
+ http://altdevblogaday.org/2011/04/06/a-smaller-jpg-encoder/.
+ This is actually a modification of Alex's original code so PNG files
+ generated by this function pass pngcheck. */
+void *tdefl_write_image_to_png_file_in_memory_ex(
+ const void *pImage, int w, int h, int num_chans, size_t *pLen_out,
+ mz_uint level, mz_bool flip) {
+ /* Using a local copy of this array here in case MINIZ_NO_ZLIB_APIS
+ * was defined. */
+ static const mz_uint s_tdefl_png_num_probes[11] = {
+ 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500
+ };
+ tdefl_compressor *pComp = (tdefl_compressor *) MZ_MALLOC(
+ sizeof(tdefl_compressor));
+ tdefl_output_buffer out_buf;
+ int i, bpl = w * num_chans, y, z;
+ mz_uint32 c;
+ *pLen_out = 0;
+ if (!pComp)
+ return NULL;
+ MZ_CLEAR_OBJ(out_buf);
+ out_buf.m_expandable = MZ_TRUE;
+ out_buf.m_capacity = 57 + MZ_MAX(64, (1 + bpl) * h);
+ if (NULL ==
+ (out_buf.m_pBuf = (mz_uint8 *) MZ_MALLOC(out_buf.m_capacity))) {
+ MZ_FREE(pComp);
+ return NULL;
+ }
+ /* write dummy header */
+ for (z = 41; z; --z) tdefl_output_buffer_putter(&z, 1, &out_buf);
+ /* compress image data */
+ tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf,
+ s_tdefl_png_num_probes[MZ_MIN(10, level)] |
+ TDEFL_WRITE_ZLIB_HEADER);
+ for (y = 0; y < h; ++y) {
+ tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH);
+ tdefl_compress_buffer(
+ pComp, (mz_uint8 *) pImage + (flip ? (h - 1 - y) : y) * bpl,
+ bpl, TDEFL_NO_FLUSH);
+ }
+ if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) !=
+ TDEFL_STATUS_DONE) {
+ MZ_FREE(pComp);
+ MZ_FREE(out_buf.m_pBuf);
+ return NULL;
+ }
+ /* write real header */
+ *pLen_out = out_buf.m_size - 41;
+ {
+ static const mz_uint8 chans[] = { 0x00, 0x00, 0x04, 0x02, 0x06 };
+ mz_uint8 pnghdr[41] = { 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a,
+ 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48,
+ 0x44, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x49, 0x44, 0x41, 0x54 };
+ pnghdr[18] = (mz_uint8) (w >> 8);
+ pnghdr[19] = (mz_uint8) w;
+ pnghdr[22] = (mz_uint8) (h >> 8);
+ pnghdr[23] = (mz_uint8) h;
+ pnghdr[25] = chans[num_chans];
+ pnghdr[33] = (mz_uint8) (*pLen_out >> 24);
+ pnghdr[34] = (mz_uint8) (*pLen_out >> 16);
+ pnghdr[35] = (mz_uint8) (*pLen_out >> 8);
+ pnghdr[36] = (mz_uint8) *pLen_out;
+ c = (mz_uint32) mz_crc32(MZ_CRC32_INIT, pnghdr + 12, 17);
+ for (i = 0; i < 4; ++i, c <<= 8)
+ ((mz_uint8 *) (pnghdr + 29))[i] = (mz_uint8) (c >> 24);
+ memcpy(out_buf.m_pBuf, pnghdr, 41);
+ }
+ /* write footer (IDAT CRC-32, followed by IEND chunk) */
+ if (!tdefl_output_buffer_putter(
+ "\0\0\0\0\0\0\0\0\x49\x45\x4e\x44\xae\x42\x60\x82", 16,
+ &out_buf)) {
+ *pLen_out = 0;
+ MZ_FREE(pComp);
+ MZ_FREE(out_buf.m_pBuf);
+ return NULL;
+ }
+ c = (mz_uint32) mz_crc32(MZ_CRC32_INIT, out_buf.m_pBuf + 41 - 4,
+ *pLen_out + 4);
+ for (i = 0; i < 4; ++i, c <<= 8)
+ (out_buf.m_pBuf + out_buf.m_size - 16)[i] = (mz_uint8) (c >> 24);
+ /* compute final size of file, grab compressed data buffer and
+ * return */
+ *pLen_out += 57;
+ MZ_FREE(pComp);
+ return out_buf.m_pBuf;
+}
+void *tdefl_write_image_to_png_file_in_memory(const void *pImage,
+ int w, int h,
+ int num_chans,
+ size_t *pLen_out) {
+ /* Level 6 corresponds to TDEFL_DEFAULT_MAX_PROBES or
+ * MZ_DEFAULT_LEVEL (but we can't depend on MZ_DEFAULT_LEVEL being
+ * available in case the zlib API's where #defined out) */
+ return tdefl_write_image_to_png_file_in_memory_ex(
+ pImage, w, h, num_chans, pLen_out, 6, MZ_FALSE);
+}
+
+# ifndef MINIZ_NO_MALLOC
+/* Allocate the tdefl_compressor and tinfl_decompressor structures in
+ * C so that */
+/* non-C language bindings to tdefL_ and tinfl_ API don't need to
+ * worry about */
+/* structure size and allocation mechanism. */
+tdefl_compressor *tdefl_compressor_alloc(void) {
+ return (tdefl_compressor *) MZ_MALLOC(sizeof(tdefl_compressor));
+}
+
+void tdefl_compressor_free(tdefl_compressor *pComp) {
+ MZ_FREE(pComp);
+}
+# endif
+
+# ifdef _MSC_VER
+# pragma warning(pop)
+# endif
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/
diff --git a/source/kit/miniz/miniz_tdef.h b/source/kit/miniz/miniz_tdef.h
new file mode 100644
index 0000000..f7adaa6
--- /dev/null
+++ b/source/kit/miniz/miniz_tdef.h
@@ -0,0 +1,271 @@
+#ifndef KIT_MINIZ_MINIZ_TDEF_H
+#define KIT_MINIZ_MINIZ_TDEF_H
+
+#include "miniz_common.h"
+
+#ifndef MINIZ_NO_DEFLATE_APIS
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+/* ------------------- Low-level Compression API Definitions */
+
+/* Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be
+ * slightly slower, and raw/dynamic blocks will be output more
+ * frequently). */
+# define TDEFL_LESS_MEMORY 0
+
+/* tdefl_init() compression flags logically OR'd together (low 12 bits
+ * contain the max. number of probes per dictionary search): */
+/* TDEFL_DEFAULT_MAX_PROBES: The compressor defaults to 128 dictionary
+ * probes per dictionary search. 0=Huffman only, 1=Huffman+LZ
+ * (fastest/crap compression), 4095=Huffman+LZ (slowest/best
+ * compression). */
+enum {
+ TDEFL_HUFFMAN_ONLY = 0,
+ TDEFL_DEFAULT_MAX_PROBES = 128,
+ TDEFL_MAX_PROBES_MASK = 0xFFF
+};
+
+/* TDEFL_WRITE_ZLIB_HEADER: If set, the compressor outputs a zlib
+ * header before the deflate data, and the Adler-32 of the source data
+ * at the end. Otherwise, you'll get raw deflate data. */
+/* TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input
+ * data (even when not writing zlib headers). */
+/* TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing,
+ * instead of more efficient lazy parsing. */
+/* TDEFL_NONDETERMINISTIC_PARSING_FLAG: Enable to decrease the
+ * compressor's initialization time to the minimum, but the output may
+ * vary from run to run given the same input (depending on the
+ * contents of memory). */
+/* TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a
+ * distance of 1) */
+/* TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled. */
+/* TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman
+ * tables. */
+/* TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate
+ * blocks. */
+/* The low 12 bits are reserved to control the max # of hash probes
+ * per dictionary lookup (see TDEFL_MAX_PROBES_MASK). */
+enum {
+ TDEFL_WRITE_ZLIB_HEADER = 0x01000,
+ TDEFL_COMPUTE_ADLER32 = 0x02000,
+ TDEFL_GREEDY_PARSING_FLAG = 0x04000,
+ TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000,
+ TDEFL_RLE_MATCHES = 0x10000,
+ TDEFL_FILTER_MATCHES = 0x20000,
+ TDEFL_FORCE_ALL_STATIC_BLOCKS = 0x40000,
+ TDEFL_FORCE_ALL_RAW_BLOCKS = 0x80000
+};
+
+/* High level compression functions: */
+/* tdefl_compress_mem_to_heap() compresses a block in memory to a heap
+ * block allocated via malloc(). */
+/* On entry: */
+/* pSrc_buf, src_buf_len: Pointer and size of source block to
+ * compress. */
+/* flags: The max match finder probes (default is 128) logically OR'd
+ * against the above flags. Higher probes are slower but improve
+ * compression. */
+/* On return: */
+/* Function returns a pointer to the compressed data, or NULL on
+ * failure. */
+/* *pOut_len will be set to the compressed data's size, which could
+ * be larger than src_buf_len on uncompressible data. */
+/* The caller must free() the returned block when it's no longer
+ * needed. */
+void *tdefl_compress_mem_to_heap(const void *pSrc_buf,
+ size_t src_buf_len, size_t *pOut_len,
+ int flags);
+
+/* tdefl_compress_mem_to_mem() compresses a block in memory to another
+ * block in memory. */
+/* Returns 0 on failure. */
+size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len,
+ const void *pSrc_buf,
+ size_t src_buf_len, int flags);
+
+/* Compresses an image to a compressed PNG file in memory. */
+/* On entry: */
+/* pImage, w, h, and num_chans describe the image to compress.
+ * num_chans may be 1, 2, 3, or 4. */
+/* The image pitch in bytes per scanline will be w*num_chans. The
+ * leftmost pixel on the top scanline is stored first in memory. */
+/* level may range from [0,10], use MZ_NO_COMPRESSION, MZ_BEST_SPEED,
+ * MZ_BEST_COMPRESSION, etc. or a decent default is MZ_DEFAULT_LEVEL
+ */
+/* If flip is true, the image will be flipped on the Y axis (useful
+ * for OpenGL apps). */
+/* On return: */
+/* Function returns a pointer to the compressed data, or NULL on
+ * failure. */
+/* *pLen_out will be set to the size of the PNG image file. */
+/* The caller must mz_free() the returned heap block (which will
+ * typically be larger than *pLen_out) when it's no longer needed. */
+void *tdefl_write_image_to_png_file_in_memory_ex(
+ const void *pImage, int w, int h, int num_chans, size_t *pLen_out,
+ mz_uint level, mz_bool flip);
+void *tdefl_write_image_to_png_file_in_memory(const void *pImage,
+ int w, int h,
+ int num_chans,
+ size_t *pLen_out);
+
+/* Output stream interface. The compressor uses this interface to
+ * write compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE
+ * at a time. */
+typedef mz_bool (*tdefl_put_buf_func_ptr)(const void *pBuf, int len,
+ void *pUser);
+
+/* tdefl_compress_mem_to_output() compresses a block to an output
+ * stream. The above helpers use this function internally. */
+mz_bool tdefl_compress_mem_to_output(
+ const void *pBuf, size_t buf_len,
+ tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user,
+ int flags);
+
+enum {
+ TDEFL_MAX_HUFF_TABLES = 3,
+ TDEFL_MAX_HUFF_SYMBOLS_0 = 288,
+ TDEFL_MAX_HUFF_SYMBOLS_1 = 32,
+ TDEFL_MAX_HUFF_SYMBOLS_2 = 19,
+ TDEFL_LZ_DICT_SIZE = 32768,
+ TDEFL_LZ_DICT_SIZE_MASK = TDEFL_LZ_DICT_SIZE - 1,
+ TDEFL_MIN_MATCH_LEN = 3,
+ TDEFL_MAX_MATCH_LEN = 258
+};
+
+/* TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire
+ * compressed output block (using static/fixed Huffman codes). */
+# if TDEFL_LESS_MEMORY
+enum {
+ TDEFL_LZ_CODE_BUF_SIZE = 24 * 1024,
+ TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10,
+ TDEFL_MAX_HUFF_SYMBOLS = 288,
+ TDEFL_LZ_HASH_BITS = 12,
+ TDEFL_LEVEL1_HASH_SIZE_MASK = 4095,
+ TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3,
+ TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS
+};
+# else
+enum {
+ TDEFL_LZ_CODE_BUF_SIZE = 64 * 1024,
+ TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10,
+ TDEFL_MAX_HUFF_SYMBOLS = 288,
+ TDEFL_LZ_HASH_BITS = 15,
+ TDEFL_LEVEL1_HASH_SIZE_MASK = 4095,
+ TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3,
+ TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS
+};
+# endif
+
+/* The low-level tdefl functions below may be used directly if the
+ * above helper functions aren't flexible enough. The low-level
+ * functions don't make any heap allocations, unlike the above helper
+ * functions. */
+typedef enum {
+ TDEFL_STATUS_BAD_PARAM = -2,
+ TDEFL_STATUS_PUT_BUF_FAILED = -1,
+ TDEFL_STATUS_OKAY = 0,
+ TDEFL_STATUS_DONE = 1
+} tdefl_status;
+
+/* Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums */
+typedef enum {
+ TDEFL_NO_FLUSH = 0,
+ TDEFL_SYNC_FLUSH = 2,
+ TDEFL_FULL_FLUSH = 3,
+ TDEFL_FINISH = 4
+} tdefl_flush;
+
+/* tdefl's compression state structure. */
+typedef struct {
+ tdefl_put_buf_func_ptr m_pPut_buf_func;
+ void *m_pPut_buf_user;
+ mz_uint m_flags, m_max_probes[2];
+ int m_greedy_parsing;
+ mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size;
+ mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf,
+ *m_pOutput_buf_end;
+ mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos,
+ m_bits_in, m_bit_buffer;
+ mz_uint m_saved_match_dist, m_saved_match_len, m_saved_lit,
+ m_output_flush_ofs, m_output_flush_remaining, m_finished,
+ m_block_index, m_wants_to_finish;
+ tdefl_status m_prev_return_status;
+ const void *m_pIn_buf;
+ void *m_pOut_buf;
+ size_t *m_pIn_buf_size, *m_pOut_buf_size;
+ tdefl_flush m_flush;
+ const mz_uint8 *m_pSrc;
+ size_t m_src_buf_left, m_out_buf_ofs;
+ mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1];
+ mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES]
+ [TDEFL_MAX_HUFF_SYMBOLS];
+ mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES]
+ [TDEFL_MAX_HUFF_SYMBOLS];
+ mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES]
+ [TDEFL_MAX_HUFF_SYMBOLS];
+ mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE];
+ mz_uint16 m_next[TDEFL_LZ_DICT_SIZE];
+ mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE];
+ mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE];
+} tdefl_compressor;
+
+/* Initializes the compressor. */
+/* There is no corresponding deinit() function because the tdefl API's
+ * do not dynamically allocate memory. */
+/* pBut_buf_func: If NULL, output data will be supplied to the
+ * specified callback. In this case, the user should call the
+ * tdefl_compress_buffer() API for compression. */
+/* If pBut_buf_func is NULL the user should always call the
+ * tdefl_compress() API. */
+/* flags: See the above enums (TDEFL_HUFFMAN_ONLY,
+ * TDEFL_WRITE_ZLIB_HEADER, etc.) */
+tdefl_status tdefl_init(tdefl_compressor *d,
+ tdefl_put_buf_func_ptr pPut_buf_func,
+ void *pPut_buf_user, int flags);
+
+/* Compresses a block of data, consuming as much of the specified
+ * input buffer as possible, and writing as much compressed data to
+ * the specified output buffer as possible. */
+tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf,
+ size_t *pIn_buf_size, void *pOut_buf,
+ size_t *pOut_buf_size, tdefl_flush flush);
+
+/* tdefl_compress_buffer() is only usable when the tdefl_init() is
+ * called with a non-NULL tdefl_put_buf_func_ptr. */
+/* tdefl_compress_buffer() always consumes the entire input buffer. */
+tdefl_status tdefl_compress_buffer(tdefl_compressor *d,
+ const void *pIn_buf,
+ size_t in_buf_size,
+ tdefl_flush flush);
+
+tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d);
+mz_uint32 tdefl_get_adler32(tdefl_compressor *d);
+
+/* Create tdefl_compress() flags given zlib-style compression
+ * parameters. */
+/* level may range from [0,10] (where 10 is absolute max compression,
+ * but may be much slower on some files) */
+/* window_bits may be -15 (raw deflate) or 15 (zlib) */
+/* strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED,
+ * MZ_HUFFMAN_ONLY, MZ_RLE, or MZ_FIXED */
+mz_uint tdefl_create_comp_flags_from_zip_params(int level,
+ int window_bits,
+ int strategy);
+
+# ifndef MINIZ_NO_MALLOC
+/* Allocate the tdefl_compressor structure in C so that */
+/* non-C language bindings to tdefl_ API don't need to worry about */
+/* structure size and allocation mechanism. */
+tdefl_compressor *tdefl_compressor_alloc(void);
+void tdefl_compressor_free(tdefl_compressor *pComp);
+# endif
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/
+
+#endif
diff --git a/source/kit/miniz/miniz_tinfl.c b/source/kit/miniz/miniz_tinfl.c
new file mode 100644
index 0000000..c8843ad
--- /dev/null
+++ b/source/kit/miniz/miniz_tinfl.c
@@ -0,0 +1,818 @@
+/**************************************************************************
+ *
+ * Copyright 2013-2014 RAD Game Tools and Valve Software
+ * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ *obtaining a copy of this software and associated documentation files
+ *(the "Software"), to deal in the Software without restriction,
+ *including without limitation the rights to use, copy, modify, merge,
+ *publish, distribute, sublicense, and/or sell copies of the Software,
+ *and to permit persons to whom the Software is furnished to do so,
+ *subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "miniz.h"
+
+#ifndef MINIZ_NO_INFLATE_APIS
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+/* ------------------- Low-level Decompression (completely independent
+ * from all compression API's) */
+
+# define TINFL_MEMCPY(d, s, l) memcpy(d, s, l)
+# define TINFL_MEMSET(p, c, l) memset(p, c, l)
+
+# define TINFL_CR_BEGIN \
+ switch (r->m_state) { \
+ case 0:
+# define TINFL_CR_RETURN(state_index, result) \
+ do { \
+ status = result; \
+ r->m_state = state_index; \
+ goto common_exit; \
+ case state_index:; \
+ } \
+ MZ_MACRO_END
+# define TINFL_CR_RETURN_FOREVER(state_index, result) \
+ do { \
+ for (;;) { TINFL_CR_RETURN(state_index, result); } \
+ } \
+ MZ_MACRO_END
+# define TINFL_CR_FINISH }
+
+# define TINFL_GET_BYTE(state_index, c) \
+ do { \
+ while (pIn_buf_cur >= pIn_buf_end) { \
+ TINFL_CR_RETURN( \
+ state_index, \
+ (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) \
+ ? TINFL_STATUS_NEEDS_MORE_INPUT \
+ : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS); \
+ } \
+ c = *pIn_buf_cur++; \
+ } \
+ MZ_MACRO_END
+
+# define TINFL_NEED_BITS(state_index, n) \
+ do { \
+ mz_uint c; \
+ TINFL_GET_BYTE(state_index, c); \
+ bit_buf |= (((tinfl_bit_buf_t) c) << num_bits); \
+ num_bits += 8; \
+ } while (num_bits < (mz_uint) (n))
+# define TINFL_SKIP_BITS(state_index, n) \
+ do { \
+ if (num_bits < (mz_uint) (n)) { \
+ TINFL_NEED_BITS(state_index, n); \
+ } \
+ bit_buf >>= (n); \
+ num_bits -= (n); \
+ } \
+ MZ_MACRO_END
+# define TINFL_GET_BITS(state_index, b, n) \
+ do { \
+ if (num_bits < (mz_uint) (n)) { \
+ TINFL_NEED_BITS(state_index, n); \
+ } \
+ b = bit_buf & ((1 << (n)) - 1); \
+ bit_buf >>= (n); \
+ num_bits -= (n); \
+ } \
+ MZ_MACRO_END
+
+/* TINFL_HUFF_BITBUF_FILL() is only used rarely, when the number of
+ * bytes remaining in the input buffer falls below 2. */
+/* It reads just enough bytes from the input stream that are needed to
+ * decode the next Huffman code (and absolutely no more). It works by
+ * trying to fully decode a */
+/* Huffman code by using whatever bits are currently present in the
+ * bit buffer. If this fails, it reads another byte, and tries again
+ * until it succeeds or until the */
+/* bit buffer contains >=15 bits (deflate's max. Huffman code size).
+ */
+# define TINFL_HUFF_BITBUF_FILL(state_index, pLookUp, pTree) \
+ do { \
+ temp = pLookUp[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]; \
+ if (temp >= 0) { \
+ code_len = temp >> 9; \
+ if ((code_len) && (num_bits >= code_len)) \
+ break; \
+ } else if (num_bits > TINFL_FAST_LOOKUP_BITS) { \
+ code_len = TINFL_FAST_LOOKUP_BITS; \
+ do { \
+ temp = pTree[~temp + ((bit_buf >> code_len++) & 1)]; \
+ } while ((temp < 0) && (num_bits >= (code_len + 1))); \
+ if (temp >= 0) \
+ break; \
+ } \
+ TINFL_GET_BYTE(state_index, c); \
+ bit_buf |= (((tinfl_bit_buf_t) c) << num_bits); \
+ num_bits += 8; \
+ } while (num_bits < 15);
+
+/* TINFL_HUFF_DECODE() decodes the next Huffman coded symbol. It's
+ * more complex than you would initially expect because the zlib API
+ * expects the decompressor to never read */
+/* beyond the final byte of the deflate stream. (In other words, when
+ * this macro wants to read another byte from the input, it REALLY
+ * needs another byte in order to fully */
+/* decode the next Huffman code.) Handling this properly is
+ * particularly important on raw deflate (non-zlib) streams, which
+ * aren't followed by a byte aligned adler-32. */
+/* The slow path is only executed at the very end of the input buffer.
+ */
+/* v1.16: The original macro handled the case at the very end of the
+ * passed-in input buffer, but we also need to handle the case where
+ * the user passes in 1+zillion bytes */
+/* following the deflate data and our non-conservative read-ahead path
+ * won't kick in here on this code. This is much trickier. */
+# define TINFL_HUFF_DECODE(state_index, sym, pLookUp, pTree) \
+ do { \
+ int temp; \
+ mz_uint code_len, c; \
+ if (num_bits < 15) { \
+ if ((pIn_buf_end - pIn_buf_cur) < 2) { \
+ TINFL_HUFF_BITBUF_FILL(state_index, pLookUp, pTree); \
+ } else { \
+ bit_buf |= (((tinfl_bit_buf_t) pIn_buf_cur[0]) \
+ << num_bits) | \
+ (((tinfl_bit_buf_t) pIn_buf_cur[1]) \
+ << (num_bits + 8)); \
+ pIn_buf_cur += 2; \
+ num_bits += 16; \
+ } \
+ } \
+ if ((temp = \
+ pLookUp[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= \
+ 0) \
+ code_len = temp >> 9, temp &= 511; \
+ else { \
+ code_len = TINFL_FAST_LOOKUP_BITS; \
+ do { \
+ temp = pTree[~temp + ((bit_buf >> code_len++) & 1)]; \
+ } while (temp < 0); \
+ } \
+ sym = temp; \
+ bit_buf >>= code_len; \
+ num_bits -= code_len; \
+ } \
+ MZ_MACRO_END
+
+static void tinfl_clear_tree(tinfl_decompressor *r) {
+ if (r->m_type == 0)
+ MZ_CLEAR_ARR(r->m_tree_0);
+ else if (r->m_type == 1)
+ MZ_CLEAR_ARR(r->m_tree_1);
+ else
+ MZ_CLEAR_ARR(r->m_tree_2);
+}
+
+tinfl_status tinfl_decompress(tinfl_decompressor *r,
+ const mz_uint8 *pIn_buf_next,
+ size_t *pIn_buf_size,
+ mz_uint8 *pOut_buf_start,
+ mz_uint8 *pOut_buf_next,
+ size_t *pOut_buf_size,
+ const mz_uint32 decomp_flags) {
+ static const mz_uint16 s_length_base[31] = {
+ 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15,
+ 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83,
+ 99, 115, 131, 163, 195, 227, 258, 0, 0
+ };
+ static const mz_uint8 s_length_extra[31] = { 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 2, 2, 2, 2,
+ 3, 3, 3, 3, 4, 4, 4, 4,
+ 5, 5, 5, 5, 0, 0, 0 };
+ static const mz_uint16 s_dist_base[32] = {
+ 1, 2, 3, 4, 5, 7, 9, 13,
+ 17, 25, 33, 49, 65, 97, 129, 193,
+ 257, 385, 513, 769, 1025, 1537, 2049, 3073,
+ 4097, 6145, 8193, 12289, 16385, 24577, 0, 0
+ };
+ static const mz_uint8 s_dist_extra[32] = {
+ 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6,
+ 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13
+ };
+ static const mz_uint8 s_length_dezigzag[19] = {
+ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15
+ };
+ static const mz_uint16 s_min_table_sizes[3] = { 257, 1, 4 };
+
+ mz_int16 *pTrees[3];
+ mz_uint8 *pCode_sizes[3];
+
+ tinfl_status status = TINFL_STATUS_FAILED;
+ mz_uint32 num_bits, dist, counter, num_extra;
+ tinfl_bit_buf_t bit_buf;
+ const mz_uint8 *pIn_buf_cur = pIn_buf_next, *const pIn_buf_end =
+ pIn_buf_next +
+ *pIn_buf_size;
+ mz_uint8 *pOut_buf_cur = pOut_buf_next, *const pOut_buf_end =
+ pOut_buf_next
+ ? pOut_buf_next +
+ *pOut_buf_size
+ : NULL;
+ size_t out_buf_size_mask =
+ (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)
+ ? (size_t) -1
+ : ((pOut_buf_next - pOut_buf_start) +
+ *pOut_buf_size) -
+ 1,
+ dist_from_out_buf_start;
+
+ /* Ensure the output buffer's size is a power of 2, unless the
+ * output buffer is large enough to hold the entire output file (in
+ * which case it doesn't matter). */
+ if (((out_buf_size_mask + 1) & out_buf_size_mask) ||
+ (pOut_buf_next < pOut_buf_start)) {
+ *pIn_buf_size = *pOut_buf_size = 0;
+ return TINFL_STATUS_BAD_PARAM;
+ }
+
+ pTrees[0] = r->m_tree_0;
+ pTrees[1] = r->m_tree_1;
+ pTrees[2] = r->m_tree_2;
+ pCode_sizes[0] = r->m_code_size_0;
+ pCode_sizes[1] = r->m_code_size_1;
+ pCode_sizes[2] = r->m_code_size_2;
+
+ num_bits = r->m_num_bits;
+ bit_buf = r->m_bit_buf;
+ dist = r->m_dist;
+ counter = r->m_counter;
+ num_extra = r->m_num_extra;
+ dist_from_out_buf_start = r->m_dist_from_out_buf_start;
+ TINFL_CR_BEGIN
+
+ bit_buf = num_bits = dist = counter = num_extra = r->m_zhdr0 =
+ r->m_zhdr1 = 0;
+ r->m_z_adler32 = r->m_check_adler32 = 1;
+ if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) {
+ TINFL_GET_BYTE(1, r->m_zhdr0);
+ TINFL_GET_BYTE(2, r->m_zhdr1);
+ counter = (((r->m_zhdr0 * 256 + r->m_zhdr1) % 31 != 0) ||
+ (r->m_zhdr1 & 32) || ((r->m_zhdr0 & 15) != 8));
+ if (!(decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))
+ counter |= (((1U << (8U + (r->m_zhdr0 >> 4))) > 32768U) ||
+ ((out_buf_size_mask + 1) <
+ (size_t) ((size_t) 1
+ << (8U + (r->m_zhdr0 >> 4)))));
+ if (counter) {
+ TINFL_CR_RETURN_FOREVER(36, TINFL_STATUS_FAILED);
+ }
+ }
+
+ do {
+ TINFL_GET_BITS(3, r->m_final, 3);
+ r->m_type = r->m_final >> 1;
+ if (r->m_type == 0) {
+ TINFL_SKIP_BITS(5, num_bits & 7);
+ for (counter = 0; counter < 4; ++counter) {
+ if (num_bits)
+ TINFL_GET_BITS(6, r->m_raw_header[counter], 8);
+ else
+ TINFL_GET_BYTE(7, r->m_raw_header[counter]);
+ }
+ if ((counter = (r->m_raw_header[0] |
+ (r->m_raw_header[1] << 8))) !=
+ (mz_uint) (0xFFFF ^ (r->m_raw_header[2] |
+ (r->m_raw_header[3] << 8)))) {
+ TINFL_CR_RETURN_FOREVER(39, TINFL_STATUS_FAILED);
+ }
+ while ((counter) && (num_bits)) {
+ TINFL_GET_BITS(51, dist, 8);
+ while (pOut_buf_cur >= pOut_buf_end) {
+ TINFL_CR_RETURN(52, TINFL_STATUS_HAS_MORE_OUTPUT);
+ }
+ *pOut_buf_cur++ = (mz_uint8) dist;
+ counter--;
+ }
+ while (counter) {
+ size_t n;
+ while (pOut_buf_cur >= pOut_buf_end) {
+ TINFL_CR_RETURN(9, TINFL_STATUS_HAS_MORE_OUTPUT);
+ }
+ while (pIn_buf_cur >= pIn_buf_end) {
+ TINFL_CR_RETURN(
+ 38, (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT)
+ ? TINFL_STATUS_NEEDS_MORE_INPUT
+ : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS);
+ }
+ n = MZ_MIN(MZ_MIN((size_t) (pOut_buf_end - pOut_buf_cur),
+ (size_t) (pIn_buf_end - pIn_buf_cur)),
+ counter);
+ TINFL_MEMCPY(pOut_buf_cur, pIn_buf_cur, n);
+ pIn_buf_cur += n;
+ pOut_buf_cur += n;
+ counter -= (mz_uint) n;
+ }
+ } else if (r->m_type == 3) {
+ TINFL_CR_RETURN_FOREVER(10, TINFL_STATUS_FAILED);
+ } else {
+ if (r->m_type == 1) {
+ mz_uint8 *p = r->m_code_size_0;
+ mz_uint i;
+ r->m_table_sizes[0] = 288;
+ r->m_table_sizes[1] = 32;
+ TINFL_MEMSET(r->m_code_size_1, 5, 32);
+ for (i = 0; i <= 143; ++i) *p++ = 8;
+ for (; i <= 255; ++i) *p++ = 9;
+ for (; i <= 279; ++i) *p++ = 7;
+ for (; i <= 287; ++i) *p++ = 8;
+ } else {
+ for (counter = 0; counter < 3; counter++) {
+ TINFL_GET_BITS(11, r->m_table_sizes[counter],
+ "\05\05\04"[counter]);
+ r->m_table_sizes[counter] += s_min_table_sizes[counter];
+ }
+ MZ_CLEAR_ARR(r->m_code_size_2);
+ for (counter = 0; counter < r->m_table_sizes[2]; counter++) {
+ mz_uint s;
+ TINFL_GET_BITS(14, s, 3);
+ r->m_code_size_2[s_length_dezigzag[counter]] = (mz_uint8) s;
+ }
+ r->m_table_sizes[2] = 19;
+ }
+ for (; (int) r->m_type >= 0; r->m_type--) {
+ int tree_next, tree_cur;
+ mz_int16 *pLookUp;
+ mz_int16 *pTree;
+ mz_uint8 *pCode_size;
+ mz_uint i, j, used_syms, total, sym_index, next_code[17],
+ total_syms[16];
+ pLookUp = r->m_look_up[r->m_type];
+ pTree = pTrees[r->m_type];
+ pCode_size = pCode_sizes[r->m_type];
+ MZ_CLEAR_ARR(total_syms);
+ TINFL_MEMSET(pLookUp, 0, sizeof(r->m_look_up[0]));
+ tinfl_clear_tree(r);
+ for (i = 0; i < r->m_table_sizes[r->m_type]; ++i)
+ total_syms[pCode_size[i]]++;
+ used_syms = 0, total = 0;
+ next_code[0] = next_code[1] = 0;
+ for (i = 1; i <= 15; ++i) {
+ used_syms += total_syms[i];
+ next_code[i + 1] = (total = ((total + total_syms[i]) << 1));
+ }
+ if ((65536 != total) && (used_syms > 1)) {
+ TINFL_CR_RETURN_FOREVER(35, TINFL_STATUS_FAILED);
+ }
+ for (tree_next = -1, sym_index = 0;
+ sym_index < r->m_table_sizes[r->m_type]; ++sym_index) {
+ mz_uint rev_code = 0, l, cur_code,
+ code_size = pCode_size[sym_index];
+ if (!code_size)
+ continue;
+ cur_code = next_code[code_size]++;
+ for (l = code_size; l > 0; l--, cur_code >>= 1)
+ rev_code = (rev_code << 1) | (cur_code & 1);
+ if (code_size <= TINFL_FAST_LOOKUP_BITS) {
+ mz_int16 k = (mz_int16) ((code_size << 9) | sym_index);
+ while (rev_code < TINFL_FAST_LOOKUP_SIZE) {
+ pLookUp[rev_code] = k;
+ rev_code += (1 << code_size);
+ }
+ continue;
+ }
+ if (0 ==
+ (tree_cur = pLookUp[rev_code &
+ (TINFL_FAST_LOOKUP_SIZE - 1)])) {
+ pLookUp[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)] =
+ (mz_int16) tree_next;
+ tree_cur = tree_next;
+ tree_next -= 2;
+ }
+ rev_code >>= (TINFL_FAST_LOOKUP_BITS - 1);
+ for (j = code_size; j > (TINFL_FAST_LOOKUP_BITS + 1); j--) {
+ tree_cur -= ((rev_code >>= 1) & 1);
+ if (!pTree[-tree_cur - 1]) {
+ pTree[-tree_cur - 1] = (mz_int16) tree_next;
+ tree_cur = tree_next;
+ tree_next -= 2;
+ } else
+ tree_cur = pTree[-tree_cur - 1];
+ }
+ tree_cur -= ((rev_code >>= 1) & 1);
+ pTree[-tree_cur - 1] = (mz_int16) sym_index;
+ }
+ if (r->m_type == 2) {
+ for (counter = 0; counter < (r->m_table_sizes[0] +
+ r->m_table_sizes[1]);) {
+ mz_uint s;
+ TINFL_HUFF_DECODE(16, dist, r->m_look_up[2], r->m_tree_2);
+ if (dist < 16) {
+ r->m_len_codes[counter++] = (mz_uint8) dist;
+ continue;
+ }
+ if ((dist == 16) && (!counter)) {
+ TINFL_CR_RETURN_FOREVER(17, TINFL_STATUS_FAILED);
+ }
+ num_extra = "\02\03\07"[dist - 16];
+ TINFL_GET_BITS(18, s, num_extra);
+ s += "\03\03\013"[dist - 16];
+ TINFL_MEMSET(
+ r->m_len_codes + counter,
+ (dist == 16) ? r->m_len_codes[counter - 1] : 0, s);
+ counter += s;
+ }
+ if ((r->m_table_sizes[0] + r->m_table_sizes[1]) !=
+ counter) {
+ TINFL_CR_RETURN_FOREVER(21, TINFL_STATUS_FAILED);
+ }
+ TINFL_MEMCPY(r->m_code_size_0, r->m_len_codes,
+ r->m_table_sizes[0]);
+ TINFL_MEMCPY(r->m_code_size_1,
+ r->m_len_codes + r->m_table_sizes[0],
+ r->m_table_sizes[1]);
+ }
+ }
+ for (;;) {
+ mz_uint8 *pSrc;
+ for (;;) {
+ if (((pIn_buf_end - pIn_buf_cur) < 4) ||
+ ((pOut_buf_end - pOut_buf_cur) < 2)) {
+ TINFL_HUFF_DECODE(23, counter, r->m_look_up[0],
+ r->m_tree_0);
+ if (counter >= 256)
+ break;
+ while (pOut_buf_cur >= pOut_buf_end) {
+ TINFL_CR_RETURN(24, TINFL_STATUS_HAS_MORE_OUTPUT);
+ }
+ *pOut_buf_cur++ = (mz_uint8) counter;
+ } else {
+ int sym2;
+ mz_uint code_len;
+# if TINFL_USE_64BIT_BITBUF
+ if (num_bits < 30) {
+ bit_buf |=
+ (((tinfl_bit_buf_t) MZ_READ_LE32(pIn_buf_cur))
+ << num_bits);
+ pIn_buf_cur += 4;
+ num_bits += 32;
+ }
+# else
+ if (num_bits < 15) {
+ bit_buf |=
+ (((tinfl_bit_buf_t) MZ_READ_LE16(pIn_buf_cur))
+ << num_bits);
+ pIn_buf_cur += 2;
+ num_bits += 16;
+ }
+# endif
+ if ((sym2 =
+ r->m_look_up[0][bit_buf &
+ (TINFL_FAST_LOOKUP_SIZE - 1)]) >=
+ 0)
+ code_len = sym2 >> 9;
+ else {
+ code_len = TINFL_FAST_LOOKUP_BITS;
+ do {
+ sym2 = r->m_tree_0[~sym2 +
+ ((bit_buf >> code_len++) & 1)];
+ } while (sym2 < 0);
+ }
+ counter = sym2;
+ bit_buf >>= code_len;
+ num_bits -= code_len;
+ if (counter & 256)
+ break;
+
+# if !TINFL_USE_64BIT_BITBUF
+ if (num_bits < 15) {
+ bit_buf |=
+ (((tinfl_bit_buf_t) MZ_READ_LE16(pIn_buf_cur))
+ << num_bits);
+ pIn_buf_cur += 2;
+ num_bits += 16;
+ }
+# endif
+ if ((sym2 =
+ r->m_look_up[0][bit_buf &
+ (TINFL_FAST_LOOKUP_SIZE - 1)]) >=
+ 0)
+ code_len = sym2 >> 9;
+ else {
+ code_len = TINFL_FAST_LOOKUP_BITS;
+ do {
+ sym2 = r->m_tree_0[~sym2 +
+ ((bit_buf >> code_len++) & 1)];
+ } while (sym2 < 0);
+ }
+ bit_buf >>= code_len;
+ num_bits -= code_len;
+
+ pOut_buf_cur[0] = (mz_uint8) counter;
+ if (sym2 & 256) {
+ pOut_buf_cur++;
+ counter = sym2;
+ break;
+ }
+ pOut_buf_cur[1] = (mz_uint8) sym2;
+ pOut_buf_cur += 2;
+ }
+ }
+ if ((counter &= 511) == 256)
+ break;
+
+ num_extra = s_length_extra[counter - 257];
+ counter = s_length_base[counter - 257];
+ if (num_extra) {
+ mz_uint extra_bits;
+ TINFL_GET_BITS(25, extra_bits, num_extra);
+ counter += extra_bits;
+ }
+
+ TINFL_HUFF_DECODE(26, dist, r->m_look_up[1], r->m_tree_1);
+ num_extra = s_dist_extra[dist];
+ dist = s_dist_base[dist];
+ if (num_extra) {
+ mz_uint extra_bits;
+ TINFL_GET_BITS(27, extra_bits, num_extra);
+ dist += extra_bits;
+ }
+
+ dist_from_out_buf_start = pOut_buf_cur - pOut_buf_start;
+ if ((dist == 0 || dist > dist_from_out_buf_start ||
+ dist_from_out_buf_start == 0) &&
+ (decomp_flags &
+ TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)) {
+ TINFL_CR_RETURN_FOREVER(37, TINFL_STATUS_FAILED);
+ }
+
+ pSrc = pOut_buf_start +
+ ((dist_from_out_buf_start - dist) & out_buf_size_mask);
+
+ if ((MZ_MAX(pOut_buf_cur, pSrc) + counter) > pOut_buf_end) {
+ while (counter--) {
+ while (pOut_buf_cur >= pOut_buf_end) {
+ TINFL_CR_RETURN(53, TINFL_STATUS_HAS_MORE_OUTPUT);
+ }
+ *pOut_buf_cur++ =
+ pOut_buf_start[(dist_from_out_buf_start++ - dist) &
+ out_buf_size_mask];
+ }
+ continue;
+ }
+# if MINIZ_USE_UNALIGNED_LOADS_AND_STORES
+ else if ((counter >= 9) && (counter <= dist)) {
+ const mz_uint8 *pSrc_end = pSrc + (counter & ~7);
+ do {
+# ifdef MINIZ_UNALIGNED_USE_MEMCPY
+ memcpy(pOut_buf_cur, pSrc, sizeof(mz_uint32) * 2);
+# else
+ ((mz_uint32 *) pOut_buf_cur)[0] = ((
+ const mz_uint32 *) pSrc)[0];
+ ((mz_uint32 *) pOut_buf_cur)[1] = ((
+ const mz_uint32 *) pSrc)[1];
+# endif
+ pOut_buf_cur += 8;
+ } while ((pSrc += 8) < pSrc_end);
+ if ((counter &= 7) < 3) {
+ if (counter) {
+ pOut_buf_cur[0] = pSrc[0];
+ if (counter > 1)
+ pOut_buf_cur[1] = pSrc[1];
+ pOut_buf_cur += counter;
+ }
+ continue;
+ }
+ }
+# endif
+ while (counter > 2) {
+ pOut_buf_cur[0] = pSrc[0];
+ pOut_buf_cur[1] = pSrc[1];
+ pOut_buf_cur[2] = pSrc[2];
+ pOut_buf_cur += 3;
+ pSrc += 3;
+ counter -= 3;
+ }
+ if (counter > 0) {
+ pOut_buf_cur[0] = pSrc[0];
+ if (counter > 1)
+ pOut_buf_cur[1] = pSrc[1];
+ pOut_buf_cur += counter;
+ }
+ }
+ }
+ } while (!(r->m_final & 1));
+
+ /* Ensure byte alignment and put back any bytes from the bitbuf if
+ * we've looked ahead too far on gzip, or other Deflate streams
+ * followed by arbitrary data. */
+ /* I'm being super conservative here. A number of simplifications
+ * can be made to the byte alignment part, and the Adler32 check
+ * shouldn't ever need to worry about reading from the bitbuf now.
+ */
+ TINFL_SKIP_BITS(32, num_bits & 7);
+ while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8)) {
+ --pIn_buf_cur;
+ num_bits -= 8;
+ }
+ bit_buf &= ~(~(tinfl_bit_buf_t) 0 << num_bits);
+ MZ_ASSERT(!num_bits); /* if this assert fires then we've read beyond
+ the end of non-deflate/zlib streams with
+ following data (such as gzip streams). */
+
+ if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) {
+ for (counter = 0; counter < 4; ++counter) {
+ mz_uint s;
+ if (num_bits)
+ TINFL_GET_BITS(41, s, 8);
+ else
+ TINFL_GET_BYTE(42, s);
+ r->m_z_adler32 = (r->m_z_adler32 << 8) | s;
+ }
+ }
+ TINFL_CR_RETURN_FOREVER(34, TINFL_STATUS_DONE);
+
+ TINFL_CR_FINISH
+
+common_exit:
+ /* As long as we aren't telling the caller that we NEED more input
+ * to make forward progress: */
+ /* Put back any bytes from the bitbuf in case we've looked ahead too
+ * far on gzip, or other Deflate streams followed by arbitrary data.
+ */
+ /* We need to be very careful here to NOT push back any bytes we
+ * definitely know we need to make forward progress, though, or
+ * we'll lock the caller up into an inf loop. */
+ if ((status != TINFL_STATUS_NEEDS_MORE_INPUT) &&
+ (status != TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS)) {
+ while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8)) {
+ --pIn_buf_cur;
+ num_bits -= 8;
+ }
+ }
+ r->m_num_bits = num_bits;
+ r->m_bit_buf = bit_buf & ~(~(tinfl_bit_buf_t) 0 << num_bits);
+ r->m_dist = dist;
+ r->m_counter = counter;
+ r->m_num_extra = num_extra;
+ r->m_dist_from_out_buf_start = dist_from_out_buf_start;
+ *pIn_buf_size = pIn_buf_cur - pIn_buf_next;
+ *pOut_buf_size = pOut_buf_cur - pOut_buf_next;
+ if ((decomp_flags &
+ (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) &&
+ (status >= 0)) {
+ const mz_uint8 *ptr = pOut_buf_next;
+ size_t buf_len = *pOut_buf_size;
+ mz_uint32 i, s1 = r->m_check_adler32 & 0xffff,
+ s2 = r->m_check_adler32 >> 16;
+ size_t block_len = buf_len % 5552;
+ while (buf_len) {
+ for (i = 0; i + 7 < block_len; i += 8, ptr += 8) {
+ s1 += ptr[0], s2 += s1;
+ s1 += ptr[1], s2 += s1;
+ s1 += ptr[2], s2 += s1;
+ s1 += ptr[3], s2 += s1;
+ s1 += ptr[4], s2 += s1;
+ s1 += ptr[5], s2 += s1;
+ s1 += ptr[6], s2 += s1;
+ s1 += ptr[7], s2 += s1;
+ }
+ for (; i < block_len; ++i) s1 += *ptr++, s2 += s1;
+ s1 %= 65521U, s2 %= 65521U;
+ buf_len -= block_len;
+ block_len = 5552;
+ }
+ r->m_check_adler32 = (s2 << 16) + s1;
+ if ((status == TINFL_STATUS_DONE) &&
+ (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) &&
+ (r->m_check_adler32 != r->m_z_adler32))
+ status = TINFL_STATUS_ADLER32_MISMATCH;
+ }
+ return status;
+}
+
+/* Higher level helper functions. */
+void *tinfl_decompress_mem_to_heap(const void *pSrc_buf,
+ size_t src_buf_len,
+ size_t *pOut_len, int flags) {
+ tinfl_decompressor decomp;
+ void *pBuf = NULL, *pNew_buf;
+ size_t src_buf_ofs = 0, out_buf_capacity = 0;
+ *pOut_len = 0;
+ tinfl_init(&decomp);
+ for (;;) {
+ size_t src_buf_size = src_buf_len - src_buf_ofs,
+ dst_buf_size = out_buf_capacity - *pOut_len,
+ new_out_buf_capacity;
+ tinfl_status status = tinfl_decompress(
+ &decomp, (const mz_uint8 *) pSrc_buf + src_buf_ofs,
+ &src_buf_size, (mz_uint8 *) pBuf,
+ pBuf ? (mz_uint8 *) pBuf + *pOut_len : NULL, &dst_buf_size,
+ (flags & ~TINFL_FLAG_HAS_MORE_INPUT) |
+ TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
+ if ((status < 0) || (status == TINFL_STATUS_NEEDS_MORE_INPUT)) {
+ MZ_FREE(pBuf);
+ *pOut_len = 0;
+ return NULL;
+ }
+ src_buf_ofs += src_buf_size;
+ *pOut_len += dst_buf_size;
+ if (status == TINFL_STATUS_DONE)
+ break;
+ new_out_buf_capacity = out_buf_capacity * 2;
+ if (new_out_buf_capacity < 128)
+ new_out_buf_capacity = 128;
+ pNew_buf = MZ_REALLOC(pBuf, new_out_buf_capacity);
+ if (!pNew_buf) {
+ MZ_FREE(pBuf);
+ *pOut_len = 0;
+ return NULL;
+ }
+ pBuf = pNew_buf;
+ out_buf_capacity = new_out_buf_capacity;
+ }
+ return pBuf;
+}
+
+size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len,
+ const void *pSrc_buf,
+ size_t src_buf_len, int flags) {
+ tinfl_decompressor decomp;
+ tinfl_status status;
+ tinfl_init(&decomp);
+ status = tinfl_decompress(
+ &decomp, (const mz_uint8 *) pSrc_buf, &src_buf_len,
+ (mz_uint8 *) pOut_buf, (mz_uint8 *) pOut_buf, &out_buf_len,
+ (flags & ~TINFL_FLAG_HAS_MORE_INPUT) |
+ TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF);
+ return (status != TINFL_STATUS_DONE)
+ ? TINFL_DECOMPRESS_MEM_TO_MEM_FAILED
+ : out_buf_len;
+}
+
+int tinfl_decompress_mem_to_callback(
+ const void *pIn_buf, size_t *pIn_buf_size,
+ tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user,
+ int flags) {
+ int result = 0;
+ tinfl_decompressor decomp;
+ mz_uint8 *pDict = (mz_uint8 *) MZ_MALLOC(TINFL_LZ_DICT_SIZE);
+ size_t in_buf_ofs = 0, dict_ofs = 0;
+ if (!pDict)
+ return TINFL_STATUS_FAILED;
+ memset(pDict, 0, TINFL_LZ_DICT_SIZE);
+ tinfl_init(&decomp);
+ for (;;) {
+ size_t in_buf_size = *pIn_buf_size - in_buf_ofs,
+ dst_buf_size = TINFL_LZ_DICT_SIZE - dict_ofs;
+ tinfl_status status = tinfl_decompress(
+ &decomp, (const mz_uint8 *) pIn_buf + in_buf_ofs,
+ &in_buf_size, pDict, pDict + dict_ofs, &dst_buf_size,
+ (flags & ~(TINFL_FLAG_HAS_MORE_INPUT |
+ TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)));
+ in_buf_ofs += in_buf_size;
+ if ((dst_buf_size) &&
+ (!(*pPut_buf_func)(pDict + dict_ofs, (int) dst_buf_size,
+ pPut_buf_user)))
+ break;
+ if (status != TINFL_STATUS_HAS_MORE_OUTPUT) {
+ result = (status == TINFL_STATUS_DONE);
+ break;
+ }
+ dict_ofs = (dict_ofs + dst_buf_size) & (TINFL_LZ_DICT_SIZE - 1);
+ }
+ MZ_FREE(pDict);
+ *pIn_buf_size = in_buf_ofs;
+ return result;
+}
+
+# ifndef MINIZ_NO_MALLOC
+tinfl_decompressor *tinfl_decompressor_alloc(void) {
+ tinfl_decompressor *pDecomp = (tinfl_decompressor *) MZ_MALLOC(
+ sizeof(tinfl_decompressor));
+ if (pDecomp)
+ tinfl_init(pDecomp);
+ return pDecomp;
+}
+
+void tinfl_decompressor_free(tinfl_decompressor *pDecomp) {
+ MZ_FREE(pDecomp);
+}
+# endif
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/
diff --git a/source/kit/miniz/miniz_tinfl.h b/source/kit/miniz/miniz_tinfl.h
new file mode 100644
index 0000000..14da110
--- /dev/null
+++ b/source/kit/miniz/miniz_tinfl.h
@@ -0,0 +1,218 @@
+#ifndef KIT_MINIZ_MINIZ_TINFL_H
+#define KIT_MINIZ_MINIZ_TINFL_H
+
+#include "miniz_common.h"
+/* ------------------- Low-level Decompression API Definitions */
+
+#ifndef MINIZ_NO_INFLATE_APIS
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+/* Decompression flags used by tinfl_decompress(). */
+/* TINFL_FLAG_PARSE_ZLIB_HEADER: If set, the input has a valid zlib
+ * header and ends with an adler32 checksum (it's a valid zlib
+ * stream). Otherwise, the input is a raw deflate stream. */
+/* TINFL_FLAG_HAS_MORE_INPUT: If set, there are more input bytes
+ * available beyond the end of the supplied input buffer. If clear,
+ * the input buffer contains all remaining input. */
+/* TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF: If set, the output buffer
+ * is large enough to hold the entire decompressed stream. If clear,
+ * the output buffer is at least the size of the dictionary (typically
+ * 32KB). */
+/* TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of
+ * the decompressed bytes. */
+enum {
+ TINFL_FLAG_PARSE_ZLIB_HEADER = 1,
+ TINFL_FLAG_HAS_MORE_INPUT = 2,
+ TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4,
+ TINFL_FLAG_COMPUTE_ADLER32 = 8
+};
+
+/* High level decompression functions: */
+/* tinfl_decompress_mem_to_heap() decompresses a block in memory to a
+ * heap block allocated via malloc(). */
+/* On entry: */
+/* pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib
+ * source data to decompress. */
+/* On return: */
+/* Function returns a pointer to the decompressed data, or NULL on
+ * failure. */
+/* *pOut_len will be set to the decompressed data's size, which could
+ * be larger than src_buf_len on uncompressible data. */
+/* The caller must call mz_free() on the returned block when it's no
+ * longer needed. */
+void *tinfl_decompress_mem_to_heap(const void *pSrc_buf,
+ size_t src_buf_len,
+ size_t *pOut_len, int flags);
+
+/* tinfl_decompress_mem_to_mem() decompresses a block in memory to
+ * another block in memory. */
+/* Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the
+ * number of bytes written on success. */
+# define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t) (-1))
+size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len,
+ const void *pSrc_buf,
+ size_t src_buf_len, int flags);
+
+/* tinfl_decompress_mem_to_callback() decompresses a block in memory
+ * to an internal 32KB buffer, and a user provided callback function
+ * will be called to flush the buffer. */
+/* Returns 1 on success or 0 on failure. */
+typedef int (*tinfl_put_buf_func_ptr)(const void *pBuf, int len,
+ void *pUser);
+int tinfl_decompress_mem_to_callback(
+ const void *pIn_buf, size_t *pIn_buf_size,
+ tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user,
+ int flags);
+
+struct tinfl_decompressor_tag;
+typedef struct tinfl_decompressor_tag tinfl_decompressor;
+
+# ifndef MINIZ_NO_MALLOC
+/* Allocate the tinfl_decompressor structure in C so that */
+/* non-C language bindings to tinfl_ API don't need to worry about */
+/* structure size and allocation mechanism. */
+tinfl_decompressor *tinfl_decompressor_alloc(void);
+void tinfl_decompressor_free(tinfl_decompressor *pDecomp);
+# endif
+
+/* Max size of LZ dictionary. */
+# define TINFL_LZ_DICT_SIZE 32768
+
+/* Return status. */
+typedef enum {
+ /* This flags indicates the inflator needs 1 or more input bytes to
+ make forward progress, but the caller is indicating that no more
+ are available. The compressed data */
+ /* is probably corrupted. If you call the inflator again with more
+ bytes it'll try to continue processing the input but this is a
+ BAD sign (either the data is corrupted or you called it
+ incorrectly). */
+ /* If you call it again with no input you'll just get
+ TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS again. */
+ TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS = -4,
+
+ /* This flag indicates that one or more of the input parameters was
+ obviously bogus. (You can try calling it again, but if you get
+ this error the calling code is wrong.) */
+ TINFL_STATUS_BAD_PARAM = -3,
+
+ /* This flags indicate the inflator is finished but the adler32
+ check of the uncompressed data didn't match. If you call it again
+ it'll return TINFL_STATUS_DONE. */
+ TINFL_STATUS_ADLER32_MISMATCH = -2,
+
+ /* This flags indicate the inflator has somehow failed (bad code,
+ corrupted input, etc.). If you call it again without resetting
+ via tinfl_init() it it'll just keep on returning the same status
+ failure code. */
+ TINFL_STATUS_FAILED = -1,
+
+ /* Any status code less than TINFL_STATUS_DONE must indicate a
+ failure. */
+
+ /* This flag indicates the inflator has returned every byte of
+ uncompressed data that it can, has consumed every byte that it
+ needed, has successfully reached the end of the deflate stream,
+ and */
+ /* if zlib headers and adler32 checking enabled that it has
+ successfully checked the uncompressed data's adler32. If you call
+ it again you'll just get TINFL_STATUS_DONE over and over again.
+ */
+ TINFL_STATUS_DONE = 0,
+
+ /* This flag indicates the inflator MUST have more input data (even
+ 1 byte) before it can make any more forward progress, or you need
+ to clear the TINFL_FLAG_HAS_MORE_INPUT */
+ /* flag on the next call if you don't have any more source data. If
+ the source data was somehow corrupted it's also possible (but
+ unlikely) for the inflator to keep on demanding input to */
+ /* proceed, so be sure to properly set the TINFL_FLAG_HAS_MORE_INPUT
+ flag. */
+ TINFL_STATUS_NEEDS_MORE_INPUT = 1,
+
+ /* This flag indicates the inflator definitely has 1 or more bytes
+ of uncompressed data available, but it cannot write this data
+ into the output buffer. */
+ /* Note if the source compressed data was corrupted it's possible
+ for the inflator to return a lot of uncompressed data to the
+ caller. I've been assuming you know how much uncompressed data to
+ expect */
+ /* (either exact or worst case) and will stop calling the inflator
+ and fail after receiving too much. In pure streaming scenarios
+ where you have no idea how many bytes to expect this may not be
+ possible */
+ /* so I may need to add some code to address this. */
+ TINFL_STATUS_HAS_MORE_OUTPUT = 2
+} tinfl_status;
+
+/* Initializes the decompressor to its initial state. */
+# define tinfl_init(r) \
+ do { (r)->m_state = 0; } \
+ MZ_MACRO_END
+# define tinfl_get_adler32(r) (r)->m_check_adler32
+
+/* Main low-level decompressor coroutine function. This is the only
+ * function actually needed for decompression. All the other functions
+ * are just high-level helpers for improved usability. */
+/* This is a universal API, i.e. it can be used as a building block to
+ * build any desired higher level decompression API. In the limit
+ * case, it can be called once per every byte input or output. */
+tinfl_status tinfl_decompress(tinfl_decompressor *r,
+ const mz_uint8 *pIn_buf_next,
+ size_t *pIn_buf_size,
+ mz_uint8 *pOut_buf_start,
+ mz_uint8 *pOut_buf_next,
+ size_t *pOut_buf_size,
+ const mz_uint32 decomp_flags);
+
+/* Internal/private bits follow. */
+enum {
+ TINFL_MAX_HUFF_TABLES = 3,
+ TINFL_MAX_HUFF_SYMBOLS_0 = 288,
+ TINFL_MAX_HUFF_SYMBOLS_1 = 32,
+ TINFL_MAX_HUFF_SYMBOLS_2 = 19,
+ TINFL_FAST_LOOKUP_BITS = 10,
+ TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS
+};
+
+# if MINIZ_HAS_64BIT_REGISTERS
+# define TINFL_USE_64BIT_BITBUF 1
+# else
+# define TINFL_USE_64BIT_BITBUF 0
+# endif
+
+# if TINFL_USE_64BIT_BITBUF
+typedef mz_uint64 tinfl_bit_buf_t;
+# define TINFL_BITBUF_SIZE (64)
+# else
+typedef mz_uint32 tinfl_bit_buf_t;
+# define TINFL_BITBUF_SIZE (32)
+# endif
+
+struct tinfl_decompressor_tag {
+ mz_uint32 m_state, m_num_bits, m_zhdr0, m_zhdr1, m_z_adler32,
+ m_final, m_type, m_check_adler32, m_dist, m_counter,
+ m_num_extra, m_table_sizes[TINFL_MAX_HUFF_TABLES];
+ tinfl_bit_buf_t m_bit_buf;
+ size_t m_dist_from_out_buf_start;
+ mz_int16 m_look_up[TINFL_MAX_HUFF_TABLES][TINFL_FAST_LOOKUP_SIZE];
+ mz_int16 m_tree_0[TINFL_MAX_HUFF_SYMBOLS_0 * 2];
+ mz_int16 m_tree_1[TINFL_MAX_HUFF_SYMBOLS_1 * 2];
+ mz_int16 m_tree_2[TINFL_MAX_HUFF_SYMBOLS_2 * 2];
+ mz_uint8 m_code_size_0[TINFL_MAX_HUFF_SYMBOLS_0];
+ mz_uint8 m_code_size_1[TINFL_MAX_HUFF_SYMBOLS_1];
+ mz_uint8 m_code_size_2[TINFL_MAX_HUFF_SYMBOLS_2];
+ mz_uint8 m_raw_header[4],
+ m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 +
+ TINFL_MAX_HUFF_SYMBOLS_1 + 137];
+};
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/
+
+#endif
diff --git a/source/kit/miniz/miniz_zip.c b/source/kit/miniz/miniz_zip.c
new file mode 100644
index 0000000..0af4bf0
--- /dev/null
+++ b/source/kit/miniz/miniz_zip.c
@@ -0,0 +1,5473 @@
+/**************************************************************************
+ *
+ * Copyright 2013-2014 RAD Game Tools and Valve Software
+ * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
+ * Copyright 2016 Martin Raiber
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person
+ *obtaining a copy of this software and associated documentation files
+ *(the "Software"), to deal in the Software without restriction,
+ *including without limitation the rights to use, copy, modify, merge,
+ *publish, distribute, sublicense, and/or sell copies of the Software,
+ *and to permit persons to whom the Software is furnished to do so,
+ *subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *SOFTWARE.
+ *
+ **************************************************************************/
+#include "miniz.h"
+
+#ifndef MINIZ_NO_ARCHIVE_APIS
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+/* ------------------- .ZIP archive reading */
+
+# ifdef MINIZ_NO_STDIO
+# define MZ_FILE void *
+# else
+# include <stdio.h>
+# include <sys/stat.h>
+
+# if defined(_MSC_VER) || defined(__MINGW64__) || \
+ defined(__MINGW32__)
+
+# ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+# endif
+# ifndef __cplusplus
+# define MICROSOFT_WINDOWS_WINBASE_H_DEFINE_INTERLOCKED_CPLUSPLUS_OVERLOADS \
+ 0
+# endif
+# ifndef NOMINMAX
+# define NOMINMAX
+# endif
+# include <windows.h>
+
+static WCHAR *mz_utf8z_to_widechar(const char *str) {
+ int reqChars = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
+ WCHAR *wStr = (WCHAR *) malloc(reqChars * sizeof(WCHAR));
+ MultiByteToWideChar(CP_UTF8, 0, str, -1, wStr, reqChars);
+ return wStr;
+}
+
+static FILE *mz_fopen(const char *pFilename, const char *pMode) {
+ WCHAR *wFilename = mz_utf8z_to_widechar(pFilename);
+ WCHAR *wMode = mz_utf8z_to_widechar(pMode);
+ FILE *pFile = NULL;
+ errno_t err = _wfopen_s(&pFile, wFilename, wMode);
+ free(wFilename);
+ free(wMode);
+ return err ? NULL : pFile;
+}
+
+static FILE *mz_freopen(const char *pPath, const char *pMode,
+ FILE *pStream) {
+ WCHAR *wPath = mz_utf8z_to_widechar(pPath);
+ WCHAR *wMode = mz_utf8z_to_widechar(pMode);
+ FILE *pFile = NULL;
+ errno_t err = _wfreopen_s(&pFile, wPath, wMode, pStream);
+ free(wPath);
+ free(wMode);
+ return err ? NULL : pFile;
+}
+
+# if defined(__MINGW32__)
+static int mz_stat(const char *path, struct _stat *buffer) {
+ WCHAR *wPath = mz_utf8z_to_widechar(path);
+ int res = _wstat(wPath, buffer);
+ free(wPath);
+ return res;
+}
+# else
+static int mz_stat64(const char *path, struct __stat64 *buffer) {
+ WCHAR *wPath = mz_utf8z_to_widechar(path);
+ int res = _wstat64(wPath, buffer);
+ free(wPath);
+ return res;
+}
+# endif
+
+# ifndef MINIZ_NO_TIME
+# include <sys/utime.h>
+# endif
+# define MZ_FOPEN mz_fopen
+# define MZ_FCLOSE fclose
+# define MZ_FREAD fread
+# define MZ_FWRITE fwrite
+# define MZ_FTELL64 _ftelli64
+# define MZ_FSEEK64 _fseeki64
+# if defined(__MINGW32__)
+# define MZ_FILE_STAT_STRUCT _stat
+# define MZ_FILE_STAT mz_stat
+# else
+# define MZ_FILE_STAT_STRUCT _stat64
+# define MZ_FILE_STAT mz_stat64
+# endif
+# define MZ_FFLUSH fflush
+# define MZ_FREOPEN mz_freopen
+# define MZ_DELETE_FILE remove
+
+# elif defined(__WATCOMC__)
+# ifndef MINIZ_NO_TIME
+# include <sys/utime.h>
+# endif
+# define MZ_FOPEN(f, m) fopen(f, m)
+# define MZ_FCLOSE fclose
+# define MZ_FREAD fread
+# define MZ_FWRITE fwrite
+# define MZ_FTELL64 _ftelli64
+# define MZ_FSEEK64 _fseeki64
+# define MZ_FILE_STAT_STRUCT stat
+# define MZ_FILE_STAT stat
+# define MZ_FFLUSH fflush
+# define MZ_FREOPEN(f, m, s) freopen(f, m, s)
+# define MZ_DELETE_FILE remove
+
+# elif defined(__TINYC__)
+# ifndef MINIZ_NO_TIME
+# include <sys/utime.h>
+# endif
+# define MZ_FOPEN(f, m) fopen(f, m)
+# define MZ_FCLOSE fclose
+# define MZ_FREAD fread
+# define MZ_FWRITE fwrite
+# define MZ_FTELL64 ftell
+# define MZ_FSEEK64 fseek
+# define MZ_FILE_STAT_STRUCT stat
+# define MZ_FILE_STAT stat
+# define MZ_FFLUSH fflush
+# define MZ_FREOPEN(f, m, s) freopen(f, m, s)
+# define MZ_DELETE_FILE remove
+
+# elif defined(__USE_LARGEFILE64) /* gcc, clang */
+# ifndef MINIZ_NO_TIME
+# include <utime.h>
+# endif
+# define MZ_FOPEN(f, m) fopen64(f, m)
+# define MZ_FCLOSE fclose
+# define MZ_FREAD fread
+# define MZ_FWRITE fwrite
+# define MZ_FTELL64 ftello64
+# define MZ_FSEEK64 fseeko64
+# define MZ_FILE_STAT_STRUCT stat64
+# define MZ_FILE_STAT stat64
+# define MZ_FFLUSH fflush
+# define MZ_FREOPEN(p, m, s) freopen64(p, m, s)
+# define MZ_DELETE_FILE remove
+
+# elif defined(__APPLE__) || defined(__FreeBSD__) || \
+ (defined(__linux__) && defined(__x86_64__))
+# ifndef MINIZ_NO_TIME
+# include <utime.h>
+# endif
+# define MZ_FOPEN(f, m) fopen(f, m)
+# define MZ_FCLOSE fclose
+# define MZ_FREAD fread
+# define MZ_FWRITE fwrite
+# define MZ_FTELL64 ftello
+# define MZ_FSEEK64 fseeko
+# define MZ_FILE_STAT_STRUCT stat
+# define MZ_FILE_STAT stat
+# define MZ_FFLUSH fflush
+# define MZ_FREOPEN(p, m, s) freopen(p, m, s)
+# define MZ_DELETE_FILE remove
+
+# else
+# pragma message( \
+ "Using fopen, ftello, fseeko, stat() etc. path for file I/O - this path may not support large files.")
+# ifndef MINIZ_NO_TIME
+# include <utime.h>
+# endif
+# define MZ_FOPEN(f, m) fopen(f, m)
+# define MZ_FCLOSE fclose
+# define MZ_FREAD fread
+# define MZ_FWRITE fwrite
+# ifdef __STRICT_ANSI__
+# define MZ_FTELL64 ftell
+# define MZ_FSEEK64 fseek
+# else
+# define MZ_FTELL64 ftello
+# define MZ_FSEEK64 fseeko
+# endif
+# define MZ_FILE_STAT_STRUCT stat
+# define MZ_FILE_STAT stat
+# define MZ_FFLUSH fflush
+# define MZ_FREOPEN(f, m, s) freopen(f, m, s)
+# define MZ_DELETE_FILE remove
+# endif /* #ifdef _MSC_VER */
+# endif /* #ifdef MINIZ_NO_STDIO */
+
+# define MZ_TOLOWER(c) \
+ ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c))
+
+/* Various ZIP archive enums. To completely avoid cross platform
+ * compiler alignment and platform endian issues, miniz.c doesn't use
+ * structs for any of this stuff. */
+enum {
+ /* ZIP archive identifiers and record sizes */
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50,
+ MZ_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50,
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE = 30,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE = 46,
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22,
+
+ /* ZIP64 archive identifier and record sizes */
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06064b50,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG = 0x07064b50,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE = 56,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE = 20,
+ MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID = 0x0001,
+ MZ_ZIP_DATA_DESCRIPTOR_ID = 0x08074b50,
+ MZ_ZIP_DATA_DESCRIPTER_SIZE64 = 24,
+ MZ_ZIP_DATA_DESCRIPTER_SIZE32 = 16,
+
+ /* Central directory header record offsets */
+ MZ_ZIP_CDH_SIG_OFS = 0,
+ MZ_ZIP_CDH_VERSION_MADE_BY_OFS = 4,
+ MZ_ZIP_CDH_VERSION_NEEDED_OFS = 6,
+ MZ_ZIP_CDH_BIT_FLAG_OFS = 8,
+ MZ_ZIP_CDH_METHOD_OFS = 10,
+ MZ_ZIP_CDH_FILE_TIME_OFS = 12,
+ MZ_ZIP_CDH_FILE_DATE_OFS = 14,
+ MZ_ZIP_CDH_CRC32_OFS = 16,
+ MZ_ZIP_CDH_COMPRESSED_SIZE_OFS = 20,
+ MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24,
+ MZ_ZIP_CDH_FILENAME_LEN_OFS = 28,
+ MZ_ZIP_CDH_EXTRA_LEN_OFS = 30,
+ MZ_ZIP_CDH_COMMENT_LEN_OFS = 32,
+ MZ_ZIP_CDH_DISK_START_OFS = 34,
+ MZ_ZIP_CDH_INTERNAL_ATTR_OFS = 36,
+ MZ_ZIP_CDH_EXTERNAL_ATTR_OFS = 38,
+ MZ_ZIP_CDH_LOCAL_HEADER_OFS = 42,
+
+ /* Local directory header offsets */
+ MZ_ZIP_LDH_SIG_OFS = 0,
+ MZ_ZIP_LDH_VERSION_NEEDED_OFS = 4,
+ MZ_ZIP_LDH_BIT_FLAG_OFS = 6,
+ MZ_ZIP_LDH_METHOD_OFS = 8,
+ MZ_ZIP_LDH_FILE_TIME_OFS = 10,
+ MZ_ZIP_LDH_FILE_DATE_OFS = 12,
+ MZ_ZIP_LDH_CRC32_OFS = 14,
+ MZ_ZIP_LDH_COMPRESSED_SIZE_OFS = 18,
+ MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22,
+ MZ_ZIP_LDH_FILENAME_LEN_OFS = 26,
+ MZ_ZIP_LDH_EXTRA_LEN_OFS = 28,
+ MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR = 1 << 3,
+
+ /* End of central directory offsets */
+ MZ_ZIP_ECDH_SIG_OFS = 0,
+ MZ_ZIP_ECDH_NUM_THIS_DISK_OFS = 4,
+ MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6,
+ MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8,
+ MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10,
+ MZ_ZIP_ECDH_CDIR_SIZE_OFS = 12,
+ MZ_ZIP_ECDH_CDIR_OFS_OFS = 16,
+ MZ_ZIP_ECDH_COMMENT_SIZE_OFS = 20,
+
+ /* ZIP64 End of central directory locator offsets */
+ MZ_ZIP64_ECDL_SIG_OFS = 0, /* 4 bytes */
+ MZ_ZIP64_ECDL_NUM_DISK_CDIR_OFS = 4, /* 4 bytes */
+ MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS = 8, /* 8 bytes */
+ MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS = 16, /* 4 bytes */
+
+ /* ZIP64 End of central directory header offsets */
+ MZ_ZIP64_ECDH_SIG_OFS = 0, /* 4 bytes */
+ MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS = 4, /* 8 bytes */
+ MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS = 12, /* 2 bytes */
+ MZ_ZIP64_ECDH_VERSION_NEEDED_OFS = 14, /* 2 bytes */
+ MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS = 16, /* 4 bytes */
+ MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS = 20, /* 4 bytes */
+ MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 24, /* 8 bytes */
+ MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS = 32, /* 8 bytes */
+ MZ_ZIP64_ECDH_CDIR_SIZE_OFS = 40, /* 8 bytes */
+ MZ_ZIP64_ECDH_CDIR_OFS_OFS = 48, /* 8 bytes */
+ MZ_ZIP_VERSION_MADE_BY_DOS_FILESYSTEM_ID = 0,
+ MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG = 0x10,
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED = 1,
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG = 32,
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION = 64,
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED = 8192,
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8 = 1 << 11
+};
+
+typedef struct {
+ void *m_p;
+ size_t m_size, m_capacity;
+ mz_uint m_element_size;
+} mz_zip_array;
+
+struct mz_zip_internal_state_tag {
+ mz_zip_array m_central_dir;
+ mz_zip_array m_central_dir_offsets;
+ mz_zip_array m_sorted_central_dir_offsets;
+
+ /* The flags passed in when the archive is initially opened. */
+ mz_uint32 m_init_flags;
+
+ /* MZ_TRUE if the archive has a zip64 end of central directory
+ * headers, etc. */
+ mz_bool m_zip64;
+
+ /* MZ_TRUE if we found zip64 extended info in the central directory
+ * (m_zip64 will also be slammed to true too, even if we didn't find
+ * a zip64 end of central dir header, etc.) */
+ mz_bool m_zip64_has_extended_info_fields;
+
+ /* These fields are used by the file, FILE, memory, and memory/heap
+ * read/write helpers. */
+ MZ_FILE *m_pFile;
+ mz_uint64 m_file_archive_start_ofs;
+
+ void *m_pMem;
+ size_t m_mem_size;
+ size_t m_mem_capacity;
+};
+
+# define MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) \
+ (array_ptr)->m_element_size = element_size
+
+# if defined(DEBUG) || defined(_DEBUG)
+static MZ_FORCEINLINE mz_uint
+mz_zip_array_range_check(const mz_zip_array *pArray, mz_uint index) {
+ MZ_ASSERT(index < pArray->m_size);
+ return index;
+}
+# define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) \
+ ((element_type *) ((array_ptr)->m_p)) \
+ [mz_zip_array_range_check(array_ptr, index)]
+# else
+# define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) \
+ ((element_type *) ((array_ptr)->m_p))[index]
+# endif
+
+static MZ_FORCEINLINE void mz_zip_array_init(mz_zip_array *pArray,
+ mz_uint32 element_size) {
+ memset(pArray, 0, sizeof(mz_zip_array));
+ pArray->m_element_size = element_size;
+}
+
+static MZ_FORCEINLINE void mz_zip_array_clear(mz_zip_archive *pZip,
+ mz_zip_array *pArray) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pArray->m_p);
+ memset(pArray, 0, sizeof(mz_zip_array));
+}
+
+static mz_bool mz_zip_array_ensure_capacity(mz_zip_archive *pZip,
+ mz_zip_array *pArray,
+ size_t min_new_capacity,
+ mz_uint growing) {
+ void *pNew_p;
+ size_t new_capacity = min_new_capacity;
+ MZ_ASSERT(pArray->m_element_size);
+ if (pArray->m_capacity >= min_new_capacity)
+ return MZ_TRUE;
+ if (growing) {
+ new_capacity = MZ_MAX(1, pArray->m_capacity);
+ while (new_capacity < min_new_capacity) new_capacity *= 2;
+ }
+ if (NULL == (pNew_p = pZip->m_pRealloc(
+ pZip->m_pAlloc_opaque, pArray->m_p,
+ pArray->m_element_size, new_capacity)))
+ return MZ_FALSE;
+ pArray->m_p = pNew_p;
+ pArray->m_capacity = new_capacity;
+ return MZ_TRUE;
+}
+
+static MZ_FORCEINLINE mz_bool
+mz_zip_array_reserve(mz_zip_archive *pZip, mz_zip_array *pArray,
+ size_t new_capacity, mz_uint growing) {
+ if (new_capacity > pArray->m_capacity) {
+ if (!mz_zip_array_ensure_capacity(pZip, pArray, new_capacity,
+ growing))
+ return MZ_FALSE;
+ }
+ return MZ_TRUE;
+}
+
+static MZ_FORCEINLINE mz_bool
+mz_zip_array_resize(mz_zip_archive *pZip, mz_zip_array *pArray,
+ size_t new_size, mz_uint growing) {
+ if (new_size > pArray->m_capacity) {
+ if (!mz_zip_array_ensure_capacity(pZip, pArray, new_size,
+ growing))
+ return MZ_FALSE;
+ }
+ pArray->m_size = new_size;
+ return MZ_TRUE;
+}
+
+static MZ_FORCEINLINE mz_bool mz_zip_array_ensure_room(
+ mz_zip_archive *pZip, mz_zip_array *pArray, size_t n) {
+ return mz_zip_array_reserve(pZip, pArray, pArray->m_size + n,
+ MZ_TRUE);
+}
+
+static MZ_FORCEINLINE mz_bool
+mz_zip_array_push_back(mz_zip_archive *pZip, mz_zip_array *pArray,
+ const void *pElements, size_t n) {
+ size_t orig_size = pArray->m_size;
+ if (!mz_zip_array_resize(pZip, pArray, orig_size + n, MZ_TRUE))
+ return MZ_FALSE;
+ if (n > 0)
+ memcpy((mz_uint8 *) pArray->m_p +
+ orig_size * pArray->m_element_size,
+ pElements, n * pArray->m_element_size);
+ return MZ_TRUE;
+}
+
+# ifndef MINIZ_NO_TIME
+static MZ_TIME_T mz_zip_dos_to_time_t(int dos_time, int dos_date) {
+ struct tm tm;
+ memset(&tm, 0, sizeof(tm));
+ tm.tm_isdst = -1;
+ tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900;
+ tm.tm_mon = ((dos_date >> 5) & 15) - 1;
+ tm.tm_mday = dos_date & 31;
+ tm.tm_hour = (dos_time >> 11) & 31;
+ tm.tm_min = (dos_time >> 5) & 63;
+ tm.tm_sec = (dos_time << 1) & 62;
+ return mktime(&tm);
+}
+
+# ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
+static void mz_zip_time_t_to_dos_time(MZ_TIME_T time,
+ mz_uint16 *pDOS_time,
+ mz_uint16 *pDOS_date) {
+# ifdef _MSC_VER
+ struct tm tm_struct;
+ struct tm *tm = &tm_struct;
+ errno_t err = localtime_s(tm, &time);
+ if (err) {
+ *pDOS_date = 0;
+ *pDOS_time = 0;
+ return;
+ }
+# else
+ struct tm *tm = localtime(&time);
+# endif /* #ifdef _MSC_VER */
+
+ *pDOS_time = (mz_uint16) (((tm->tm_hour) << 11) +
+ ((tm->tm_min) << 5) +
+ ((tm->tm_sec) >> 1));
+ *pDOS_date = (mz_uint16) (((tm->tm_year + 1900 - 1980) << 9) +
+ ((tm->tm_mon + 1) << 5) + tm->tm_mday);
+}
+# endif /* MINIZ_NO_ARCHIVE_WRITING_APIS */
+
+# ifndef MINIZ_NO_STDIO
+# ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
+static mz_bool mz_zip_get_file_modified_time(const char *pFilename,
+ MZ_TIME_T *pTime) {
+ struct MZ_FILE_STAT_STRUCT file_stat;
+
+ /* On Linux with x86 glibc, this call will fail on large files (I
+ * think >= 0x80000000 bytes) unless you compiled with
+ * _LARGEFILE64_SOURCE. Argh. */
+ if (MZ_FILE_STAT(pFilename, &file_stat) != 0)
+ return MZ_FALSE;
+
+ *pTime = file_stat.st_mtime;
+
+ return MZ_TRUE;
+}
+# endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS*/
+
+static mz_bool mz_zip_set_file_times(const char *pFilename,
+ MZ_TIME_T access_time,
+ MZ_TIME_T modified_time) {
+ struct utimbuf t;
+
+ memset(&t, 0, sizeof(t));
+ t.actime = access_time;
+ t.modtime = modified_time;
+
+ return !utime(pFilename, &t);
+}
+# endif /* #ifndef MINIZ_NO_STDIO */
+# endif /* #ifndef MINIZ_NO_TIME */
+
+static MZ_FORCEINLINE mz_bool mz_zip_set_error(mz_zip_archive *pZip,
+ mz_zip_error err_num) {
+ if (pZip)
+ pZip->m_last_error = err_num;
+ return MZ_FALSE;
+}
+
+static mz_bool mz_zip_reader_init_internal(mz_zip_archive *pZip,
+ mz_uint flags) {
+ (void) flags;
+ if ((!pZip) || (pZip->m_pState) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (!pZip->m_pAlloc)
+ pZip->m_pAlloc = miniz_def_alloc_func;
+ if (!pZip->m_pFree)
+ pZip->m_pFree = miniz_def_free_func;
+ if (!pZip->m_pRealloc)
+ pZip->m_pRealloc = miniz_def_realloc_func;
+
+ pZip->m_archive_size = 0;
+ pZip->m_central_directory_file_ofs = 0;
+ pZip->m_total_files = 0;
+ pZip->m_last_error = MZ_ZIP_NO_ERROR;
+
+ if (NULL ==
+ (pZip->m_pState = (mz_zip_internal_state *) pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
+ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir,
+ sizeof(mz_uint8));
+ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(
+ &pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
+ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(
+ &pZip->m_pState->m_sorted_central_dir_offsets,
+ sizeof(mz_uint32));
+ pZip->m_pState->m_init_flags = flags;
+ pZip->m_pState->m_zip64 = MZ_FALSE;
+ pZip->m_pState->m_zip64_has_extended_info_fields = MZ_FALSE;
+
+ pZip->m_zip_mode = MZ_ZIP_MODE_READING;
+
+ return MZ_TRUE;
+}
+
+static MZ_FORCEINLINE mz_bool
+mz_zip_reader_filename_less(const mz_zip_array *pCentral_dir_array,
+ const mz_zip_array *pCentral_dir_offsets,
+ mz_uint l_index, mz_uint r_index) {
+ const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(
+ pCentral_dir_array, mz_uint8,
+ MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets,
+ mz_uint32, l_index)),
+ *pE;
+ const mz_uint8 *pR = &MZ_ZIP_ARRAY_ELEMENT(
+ pCentral_dir_array, mz_uint8,
+ MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, r_index));
+ mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS),
+ r_len = MZ_READ_LE16(pR + MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ mz_uint8 l = 0, r = 0;
+ pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
+ pR += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
+ pE = pL + MZ_MIN(l_len, r_len);
+ while (pL < pE) {
+ if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
+ break;
+ pL++;
+ pR++;
+ }
+ return (pL == pE) ? (l_len < r_len) : (l < r);
+}
+
+# define MZ_SWAP_UINT32(a, b) \
+ do { \
+ mz_uint32 t = a; \
+ a = b; \
+ b = t; \
+ } \
+ MZ_MACRO_END
+
+/* Heap sort of lowercased filenames, used to help accelerate plain
+ * central directory searches by mz_zip_reader_locate_file(). (Could
+ * also use qsort(), but it could allocate memory.) */
+static void mz_zip_reader_sort_central_dir_offsets_by_filename(
+ mz_zip_archive *pZip) {
+ mz_zip_internal_state *pState = pZip->m_pState;
+ const mz_zip_array *pCentral_dir_offsets =
+ &pState->m_central_dir_offsets;
+ const mz_zip_array *pCentral_dir = &pState->m_central_dir;
+ mz_uint32 *pIndices;
+ mz_uint32 start, end;
+ const mz_uint32 size = pZip->m_total_files;
+
+ if (size <= 1U)
+ return;
+
+ pIndices = &MZ_ZIP_ARRAY_ELEMENT(
+ &pState->m_sorted_central_dir_offsets, mz_uint32, 0);
+
+ start = (size - 2U) >> 1U;
+ for (;;) {
+ mz_uint64 child, root = start;
+ for (;;) {
+ if ((child = (root << 1U) + 1U) >= size)
+ break;
+ child += (((child + 1U) < size) &&
+ (mz_zip_reader_filename_less(
+ pCentral_dir, pCentral_dir_offsets,
+ pIndices[child], pIndices[child + 1U])));
+ if (!mz_zip_reader_filename_less(
+ pCentral_dir, pCentral_dir_offsets, pIndices[root],
+ pIndices[child]))
+ break;
+ MZ_SWAP_UINT32(pIndices[root], pIndices[child]);
+ root = child;
+ }
+ if (!start)
+ break;
+ start--;
+ }
+
+ end = size - 1;
+ while (end > 0) {
+ mz_uint64 child, root = 0;
+ MZ_SWAP_UINT32(pIndices[end], pIndices[0]);
+ for (;;) {
+ if ((child = (root << 1U) + 1U) >= end)
+ break;
+ child += (((child + 1U) < end) &&
+ mz_zip_reader_filename_less(
+ pCentral_dir, pCentral_dir_offsets,
+ pIndices[child], pIndices[child + 1U]));
+ if (!mz_zip_reader_filename_less(
+ pCentral_dir, pCentral_dir_offsets, pIndices[root],
+ pIndices[child]))
+ break;
+ MZ_SWAP_UINT32(pIndices[root], pIndices[child]);
+ root = child;
+ }
+ end--;
+ }
+}
+
+static mz_bool mz_zip_reader_locate_header_sig(mz_zip_archive *pZip,
+ mz_uint32 record_sig,
+ mz_uint32 record_size,
+ mz_int64 *pOfs) {
+ mz_int64 cur_file_ofs;
+ mz_uint32 buf_u32[4096 / sizeof(mz_uint32)];
+ mz_uint8 *pBuf = (mz_uint8 *) buf_u32;
+
+ /* Basic sanity checks - reject files which are too small */
+ if (pZip->m_archive_size < record_size)
+ return MZ_FALSE;
+
+ /* Find the record by scanning the file from the end towards the
+ * beginning. */
+ cur_file_ofs = MZ_MAX((mz_int64) pZip->m_archive_size -
+ (mz_int64) sizeof(buf_u32),
+ 0);
+ for (;;) {
+ int i, n = (int) MZ_MIN(sizeof(buf_u32),
+ pZip->m_archive_size - cur_file_ofs);
+
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, n) !=
+ (mz_uint) n)
+ return MZ_FALSE;
+
+ for (i = n - 4; i >= 0; --i) {
+ mz_uint s = MZ_READ_LE32(pBuf + i);
+ if (s == record_sig) {
+ if ((pZip->m_archive_size - (cur_file_ofs + i)) >=
+ record_size)
+ break;
+ }
+ }
+
+ if (i >= 0) {
+ cur_file_ofs += i;
+ break;
+ }
+
+ /* Give up if we've searched the entire file, or we've gone back
+ * "too far" (~64kb) */
+ if ((!cur_file_ofs) ||
+ ((pZip->m_archive_size - cur_file_ofs) >=
+ ((mz_uint64) (MZ_UINT16_MAX) + record_size)))
+ return MZ_FALSE;
+
+ cur_file_ofs = MZ_MAX(cur_file_ofs - (sizeof(buf_u32) - 3), 0);
+ }
+
+ *pOfs = cur_file_ofs;
+ return MZ_TRUE;
+}
+
+static mz_bool mz_zip_reader_read_central_dir(mz_zip_archive *pZip,
+ mz_uint flags) {
+ mz_uint cdir_size = 0, cdir_entries_on_this_disk = 0,
+ num_this_disk = 0, cdir_disk_index = 0;
+ mz_uint64 cdir_ofs = 0;
+ mz_int64 cur_file_ofs = 0;
+ const mz_uint8 *p;
+
+ mz_uint32 buf_u32[4096 / sizeof(mz_uint32)];
+ mz_uint8 *pBuf = (mz_uint8 *) buf_u32;
+ mz_bool sort_central_dir =
+ ((flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0);
+ mz_uint32 zip64_end_of_central_dir_locator_u32
+ [(MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE + sizeof(mz_uint32) -
+ 1) /
+ sizeof(mz_uint32)];
+ mz_uint8 *pZip64_locator = (mz_uint8 *)
+ zip64_end_of_central_dir_locator_u32;
+
+ mz_uint32 zip64_end_of_central_dir_header_u32
+ [(MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE + sizeof(mz_uint32) -
+ 1) /
+ sizeof(mz_uint32)];
+ mz_uint8 *pZip64_end_of_central_dir = (mz_uint8 *)
+ zip64_end_of_central_dir_header_u32;
+
+ mz_uint64 zip64_end_of_central_dir_ofs = 0;
+
+ /* Basic sanity checks - reject files which are too small, and check
+ * the first 4 bytes of the file to make sure a local header is
+ * there. */
+ if (pZip->m_archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
+
+ if (!mz_zip_reader_locate_header_sig(
+ pZip, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG,
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, &cur_file_ofs))
+ return mz_zip_set_error(pZip, MZ_ZIP_FAILED_FINDING_CENTRAL_DIR);
+
+ /* Read and verify the end of central directory record. */
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf,
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+
+ if (MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_SIG_OFS) !=
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG)
+ return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
+
+ if (cur_file_ofs >= (MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE +
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)) {
+ if (pZip->m_pRead(pZip->m_pIO_opaque,
+ cur_file_ofs -
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE,
+ pZip64_locator,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) ==
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) {
+ if (MZ_READ_LE32(pZip64_locator + MZ_ZIP64_ECDL_SIG_OFS) ==
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG) {
+ zip64_end_of_central_dir_ofs = MZ_READ_LE64(
+ pZip64_locator + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS);
+ if (zip64_end_of_central_dir_ofs >
+ (pZip->m_archive_size -
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE))
+ return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
+
+ if (pZip->m_pRead(pZip->m_pIO_opaque,
+ zip64_end_of_central_dir_ofs,
+ pZip64_end_of_central_dir,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) ==
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) {
+ if (MZ_READ_LE32(pZip64_end_of_central_dir +
+ MZ_ZIP64_ECDH_SIG_OFS) ==
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG) {
+ pZip->m_pState->m_zip64 = MZ_TRUE;
+ }
+ }
+ }
+ }
+ }
+
+ pZip->m_total_files = MZ_READ_LE16(
+ pBuf + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS);
+ cdir_entries_on_this_disk = MZ_READ_LE16(
+ pBuf + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS);
+ num_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_THIS_DISK_OFS);
+ cdir_disk_index = MZ_READ_LE16(pBuf +
+ MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS);
+ cdir_size = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_SIZE_OFS);
+ cdir_ofs = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_OFS_OFS);
+
+ if (pZip->m_pState->m_zip64) {
+ mz_uint32 zip64_total_num_of_disks = MZ_READ_LE32(
+ pZip64_locator + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS);
+ mz_uint64 zip64_cdir_total_entries = MZ_READ_LE64(
+ pZip64_end_of_central_dir +
+ MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS);
+ mz_uint64 zip64_cdir_total_entries_on_this_disk = MZ_READ_LE64(
+ pZip64_end_of_central_dir +
+ MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS);
+ mz_uint64 zip64_size_of_end_of_central_dir_record = MZ_READ_LE64(
+ pZip64_end_of_central_dir + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS);
+ mz_uint64 zip64_size_of_central_directory = MZ_READ_LE64(
+ pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_SIZE_OFS);
+
+ if (zip64_size_of_end_of_central_dir_record <
+ (MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE - 12))
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ if (zip64_total_num_of_disks != 1U)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
+
+ /* Check for miniz's practical limits */
+ if (zip64_cdir_total_entries > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+
+ pZip->m_total_files = (mz_uint32) zip64_cdir_total_entries;
+
+ if (zip64_cdir_total_entries_on_this_disk > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+
+ cdir_entries_on_this_disk = (mz_uint32)
+ zip64_cdir_total_entries_on_this_disk;
+
+ /* Check for miniz's current practical limits (sorry, this should
+ * be enough for millions of files) */
+ if (zip64_size_of_central_directory > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
+
+ cdir_size = (mz_uint32) zip64_size_of_central_directory;
+
+ num_this_disk = MZ_READ_LE32(pZip64_end_of_central_dir +
+ MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS);
+
+ cdir_disk_index = MZ_READ_LE32(pZip64_end_of_central_dir +
+ MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS);
+
+ cdir_ofs = MZ_READ_LE64(pZip64_end_of_central_dir +
+ MZ_ZIP64_ECDH_CDIR_OFS_OFS);
+ }
+
+ if (pZip->m_total_files != cdir_entries_on_this_disk)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
+
+ if (((num_this_disk | cdir_disk_index) != 0) &&
+ ((num_this_disk != 1) || (cdir_disk_index != 1)))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
+
+ if (cdir_size < (mz_uint64) pZip->m_total_files *
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ if ((cdir_ofs + (mz_uint64) cdir_size) > pZip->m_archive_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ pZip->m_central_directory_file_ofs = cdir_ofs;
+
+ if (pZip->m_total_files) {
+ mz_uint i, n;
+ /* Read the entire central directory into a heap block, and
+ * allocate another heap block to hold the unsorted central dir
+ * file record offsets, and possibly another to hold the sorted
+ * indices. */
+ if ((!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir,
+ cdir_size, MZ_FALSE)) ||
+ (!mz_zip_array_resize(pZip,
+ &pZip->m_pState->m_central_dir_offsets,
+ pZip->m_total_files, MZ_FALSE)))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ if (sort_central_dir) {
+ if (!mz_zip_array_resize(
+ pZip, &pZip->m_pState->m_sorted_central_dir_offsets,
+ pZip->m_total_files, MZ_FALSE))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs,
+ pZip->m_pState->m_central_dir.m_p,
+ cdir_size) != cdir_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+
+ /* Now create an index into the central directory file records, do
+ * some basic sanity checking on each record */
+ p = (const mz_uint8 *) pZip->m_pState->m_central_dir.m_p;
+ for (n = cdir_size, i = 0; i < pZip->m_total_files; ++i) {
+ mz_uint total_header_size, disk_index, bit_flags, filename_size,
+ ext_data_size;
+ mz_uint64 comp_size, decomp_size, local_header_ofs;
+
+ if ((n < MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) ||
+ (MZ_READ_LE32(p) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG))
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ MZ_ZIP_ARRAY_ELEMENT(
+ &pZip->m_pState->m_central_dir_offsets, mz_uint32,
+ i) = (mz_uint32) (p - (const mz_uint8 *) pZip->m_pState
+ ->m_central_dir.m_p);
+
+ if (sort_central_dir)
+ MZ_ZIP_ARRAY_ELEMENT(
+ &pZip->m_pState->m_sorted_central_dir_offsets, mz_uint32,
+ i) = i;
+
+ comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
+ decomp_size = MZ_READ_LE32(p +
+ MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
+ local_header_ofs = MZ_READ_LE32(p +
+ MZ_ZIP_CDH_LOCAL_HEADER_OFS);
+ filename_size = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ ext_data_size = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
+
+ if ((!pZip->m_pState->m_zip64_has_extended_info_fields) &&
+ (ext_data_size) &&
+ (MZ_MAX(MZ_MAX(comp_size, decomp_size), local_header_ofs) ==
+ MZ_UINT32_MAX)) {
+ /* Attempt to find zip64 extended information field in the
+ * entry's extra data */
+ mz_uint32 extra_size_remaining = ext_data_size;
+
+ if (extra_size_remaining) {
+ const mz_uint8 *pExtra_data;
+ void *buf = NULL;
+
+ if (MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size +
+ ext_data_size >
+ n) {
+ buf = MZ_MALLOC(ext_data_size);
+ if (buf == NULL)
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ if (pZip->m_pRead(pZip->m_pIO_opaque,
+ cdir_ofs +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ filename_size,
+ buf, ext_data_size) != ext_data_size) {
+ MZ_FREE(buf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ }
+
+ pExtra_data = (mz_uint8 *) buf;
+ } else {
+ pExtra_data = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ filename_size;
+ }
+
+ do {
+ mz_uint32 field_id;
+ mz_uint32 field_data_size;
+
+ if (extra_size_remaining < (sizeof(mz_uint16) * 2)) {
+ MZ_FREE(buf);
+ return mz_zip_set_error(
+ pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ }
+
+ field_id = MZ_READ_LE16(pExtra_data);
+ field_data_size = MZ_READ_LE16(pExtra_data +
+ sizeof(mz_uint16));
+
+ if ((field_data_size + sizeof(mz_uint16) * 2) >
+ extra_size_remaining) {
+ MZ_FREE(buf);
+ return mz_zip_set_error(
+ pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ }
+
+ if (field_id ==
+ MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) {
+ /* Ok, the archive didn't have any zip64 headers but it
+ * uses a zip64 extended information field so mark it as
+ * zip64 anyway (this can occur with infozip's zip util
+ * when it reads compresses files from stdin). */
+ pZip->m_pState->m_zip64 = MZ_TRUE;
+ pZip->m_pState->m_zip64_has_extended_info_fields =
+ MZ_TRUE;
+ break;
+ }
+
+ pExtra_data += sizeof(mz_uint16) * 2 + field_data_size;
+ extra_size_remaining = extra_size_remaining -
+ sizeof(mz_uint16) * 2 -
+ field_data_size;
+ } while (extra_size_remaining);
+
+ MZ_FREE(buf);
+ }
+ }
+
+ /* I've seen archives that aren't marked as zip64 that uses
+ * zip64 ext data, argh */
+ if ((comp_size != MZ_UINT32_MAX) &&
+ (decomp_size != MZ_UINT32_MAX)) {
+ if (((!MZ_READ_LE32(p + MZ_ZIP_CDH_METHOD_OFS)) &&
+ (decomp_size != comp_size)) ||
+ (decomp_size && !comp_size))
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ }
+
+ disk_index = MZ_READ_LE16(p + MZ_ZIP_CDH_DISK_START_OFS);
+ if ((disk_index == MZ_UINT16_MAX) ||
+ ((disk_index != num_this_disk) && (disk_index != 1)))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK);
+
+ if (comp_size != MZ_UINT32_MAX) {
+ if (((mz_uint64) MZ_READ_LE32(p +
+ MZ_ZIP_CDH_LOCAL_HEADER_OFS) +
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) >
+ pZip->m_archive_size)
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ }
+
+ bit_flags = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
+ if (bit_flags &
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
+
+ if ((total_header_size =
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) +
+ MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS) +
+ MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS)) > n)
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ n -= total_header_size;
+ p += total_header_size;
+ }
+ }
+
+ if (sort_central_dir)
+ mz_zip_reader_sort_central_dir_offsets_by_filename(pZip);
+
+ return MZ_TRUE;
+}
+
+void mz_zip_zero_struct(mz_zip_archive *pZip) {
+ if (pZip)
+ MZ_CLEAR_PTR(pZip);
+}
+
+static mz_bool mz_zip_reader_end_internal(mz_zip_archive *pZip,
+ mz_bool set_last_error) {
+ mz_bool status = MZ_TRUE;
+
+ if (!pZip)
+ return MZ_FALSE;
+
+ if ((!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_READING)) {
+ if (set_last_error)
+ pZip->m_last_error = MZ_ZIP_INVALID_PARAMETER;
+
+ return MZ_FALSE;
+ }
+
+ if (pZip->m_pState) {
+ mz_zip_internal_state *pState = pZip->m_pState;
+ pZip->m_pState = NULL;
+
+ mz_zip_array_clear(pZip, &pState->m_central_dir);
+ mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
+ mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);
+
+# ifndef MINIZ_NO_STDIO
+ if (pState->m_pFile) {
+ if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE) {
+ if (MZ_FCLOSE(pState->m_pFile) == EOF) {
+ if (set_last_error)
+ pZip->m_last_error = MZ_ZIP_FILE_CLOSE_FAILED;
+ status = MZ_FALSE;
+ }
+ }
+ pState->m_pFile = NULL;
+ }
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ }
+ pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;
+
+ return status;
+}
+
+mz_bool mz_zip_reader_end(mz_zip_archive *pZip) {
+ return mz_zip_reader_end_internal(pZip, MZ_TRUE);
+}
+mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size,
+ mz_uint flags) {
+ if ((!pZip) || (!pZip->m_pRead))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (!mz_zip_reader_init_internal(pZip, flags))
+ return MZ_FALSE;
+
+ pZip->m_zip_type = MZ_ZIP_TYPE_USER;
+ pZip->m_archive_size = size;
+
+ if (!mz_zip_reader_read_central_dir(pZip, flags)) {
+ mz_zip_reader_end_internal(pZip, MZ_FALSE);
+ return MZ_FALSE;
+ }
+
+ return MZ_TRUE;
+}
+
+static size_t mz_zip_mem_read_func(void *pOpaque, mz_uint64 file_ofs,
+ void *pBuf, size_t n) {
+ mz_zip_archive *pZip = (mz_zip_archive *) pOpaque;
+ size_t s = (file_ofs >= pZip->m_archive_size)
+ ? 0
+ : (size_t) MZ_MIN(pZip->m_archive_size - file_ofs,
+ n);
+ memcpy(pBuf, (const mz_uint8 *) pZip->m_pState->m_pMem + file_ofs,
+ s);
+ return s;
+}
+
+mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem,
+ size_t size, mz_uint flags) {
+ if (!pMem)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
+
+ if (!mz_zip_reader_init_internal(pZip, flags))
+ return MZ_FALSE;
+
+ pZip->m_zip_type = MZ_ZIP_TYPE_MEMORY;
+ pZip->m_archive_size = size;
+ pZip->m_pRead = mz_zip_mem_read_func;
+ pZip->m_pIO_opaque = pZip;
+ pZip->m_pNeeds_keepalive = NULL;
+
+# ifdef __cplusplus
+ pZip->m_pState->m_pMem = const_cast<void *>(pMem);
+# else
+ pZip->m_pState->m_pMem = (void *) pMem;
+# endif
+
+ pZip->m_pState->m_mem_size = size;
+
+ if (!mz_zip_reader_read_central_dir(pZip, flags)) {
+ mz_zip_reader_end_internal(pZip, MZ_FALSE);
+ return MZ_FALSE;
+ }
+
+ return MZ_TRUE;
+}
+
+# ifndef MINIZ_NO_STDIO
+static size_t mz_zip_file_read_func(void *pOpaque, mz_uint64 file_ofs,
+ void *pBuf, size_t n) {
+ mz_zip_archive *pZip = (mz_zip_archive *) pOpaque;
+ mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
+
+ file_ofs += pZip->m_pState->m_file_archive_start_ofs;
+
+ if (((mz_int64) file_ofs < 0) ||
+ (((cur_ofs != (mz_int64) file_ofs)) &&
+ (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64) file_ofs,
+ SEEK_SET))))
+ return 0;
+
+ return MZ_FREAD(pBuf, 1, n, pZip->m_pState->m_pFile);
+}
+
+mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip,
+ const char *pFilename,
+ mz_uint32 flags) {
+ return mz_zip_reader_init_file_v2(pZip, pFilename, flags, 0, 0);
+}
+
+mz_bool mz_zip_reader_init_file_v2(mz_zip_archive *pZip,
+ const char *pFilename,
+ mz_uint flags,
+ mz_uint64 file_start_ofs,
+ mz_uint64 archive_size) {
+ mz_uint64 file_size;
+ MZ_FILE *pFile;
+
+ if ((!pZip) || (!pFilename) ||
+ ((archive_size) &&
+ (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pFile = MZ_FOPEN(pFilename, "rb");
+ if (!pFile)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
+
+ file_size = archive_size;
+ if (!file_size) {
+ if (MZ_FSEEK64(pFile, 0, SEEK_END)) {
+ MZ_FCLOSE(pFile);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
+ }
+
+ file_size = MZ_FTELL64(pFile);
+ }
+
+ /* TODO: Better sanity check archive_size and the # of actual
+ * remaining bytes */
+
+ if (file_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) {
+ MZ_FCLOSE(pFile);
+ return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
+ }
+
+ if (!mz_zip_reader_init_internal(pZip, flags)) {
+ MZ_FCLOSE(pFile);
+ return MZ_FALSE;
+ }
+
+ pZip->m_zip_type = MZ_ZIP_TYPE_FILE;
+ pZip->m_pRead = mz_zip_file_read_func;
+ pZip->m_pIO_opaque = pZip;
+ pZip->m_pState->m_pFile = pFile;
+ pZip->m_archive_size = file_size;
+ pZip->m_pState->m_file_archive_start_ofs = file_start_ofs;
+
+ if (!mz_zip_reader_read_central_dir(pZip, flags)) {
+ mz_zip_reader_end_internal(pZip, MZ_FALSE);
+ return MZ_FALSE;
+ }
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_reader_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile,
+ mz_uint64 archive_size,
+ mz_uint flags) {
+ mz_uint64 cur_file_ofs;
+
+ if ((!pZip) || (!pFile))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
+
+ cur_file_ofs = MZ_FTELL64(pFile);
+
+ if (!archive_size) {
+ if (MZ_FSEEK64(pFile, 0, SEEK_END))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
+
+ archive_size = MZ_FTELL64(pFile) - cur_file_ofs;
+
+ if (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE);
+ }
+
+ if (!mz_zip_reader_init_internal(pZip, flags))
+ return MZ_FALSE;
+
+ pZip->m_zip_type = MZ_ZIP_TYPE_CFILE;
+ pZip->m_pRead = mz_zip_file_read_func;
+
+ pZip->m_pIO_opaque = pZip;
+ pZip->m_pState->m_pFile = pFile;
+ pZip->m_archive_size = archive_size;
+ pZip->m_pState->m_file_archive_start_ofs = cur_file_ofs;
+
+ if (!mz_zip_reader_read_central_dir(pZip, flags)) {
+ mz_zip_reader_end_internal(pZip, MZ_FALSE);
+ return MZ_FALSE;
+ }
+
+ return MZ_TRUE;
+}
+
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+static MZ_FORCEINLINE const mz_uint8 *mz_zip_get_cdh(
+ mz_zip_archive *pZip, mz_uint file_index) {
+ if ((!pZip) || (!pZip->m_pState) ||
+ (file_index >= pZip->m_total_files))
+ return NULL;
+ return &MZ_ZIP_ARRAY_ELEMENT(
+ &pZip->m_pState->m_central_dir, mz_uint8,
+ MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets,
+ mz_uint32, file_index));
+}
+
+mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip,
+ mz_uint file_index) {
+ mz_uint m_bit_flag;
+ const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
+ if (!p) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ return MZ_FALSE;
+ }
+
+ m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
+ return (m_bit_flag &
+ (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION)) !=
+ 0;
+}
+
+mz_bool mz_zip_reader_is_file_supported(mz_zip_archive *pZip,
+ mz_uint file_index) {
+ mz_uint bit_flag;
+ mz_uint method;
+
+ const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
+ if (!p) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ return MZ_FALSE;
+ }
+
+ method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS);
+ bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
+
+ if ((method != 0) && (method != MZ_DEFLATED)) {
+ mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
+ return MZ_FALSE;
+ }
+
+ if (bit_flag &
+ (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION)) {
+ mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
+ return MZ_FALSE;
+ }
+
+ if (bit_flag &
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG) {
+ mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
+ return MZ_FALSE;
+ }
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip,
+ mz_uint file_index) {
+ mz_uint filename_len, attribute_mapping_id, external_attr;
+ const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
+ if (!p) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ return MZ_FALSE;
+ }
+
+ filename_len = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ if (filename_len) {
+ if (*(p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_len - 1) ==
+ '/')
+ return MZ_TRUE;
+ }
+
+ /* Bugfix: This code was also checking if the internal attribute was
+ * non-zero, which wasn't correct. */
+ /* Most/all zip writers (hopefully) set DOS file/directory
+ * attributes in the low 16-bits, so check for the DOS directory
+ * flag and ignore the source OS ID in the created by field. */
+ /* FIXME: Remove this check? Is it necessary - we already check the
+ * filename. */
+ attribute_mapping_id = MZ_READ_LE16(
+ p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS) >>
+ 8;
+ (void) attribute_mapping_id;
+
+ external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
+ if ((external_attr & MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG) != 0) {
+ return MZ_TRUE;
+ }
+
+ return MZ_FALSE;
+}
+
+static mz_bool mz_zip_file_stat_internal(
+ mz_zip_archive *pZip, mz_uint file_index,
+ const mz_uint8 *pCentral_dir_header,
+ mz_zip_archive_file_stat *pStat,
+ mz_bool *pFound_zip64_extra_data) {
+ mz_uint n;
+ const mz_uint8 *p = pCentral_dir_header;
+
+ if (pFound_zip64_extra_data)
+ *pFound_zip64_extra_data = MZ_FALSE;
+
+ if ((!p) || (!pStat))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ /* Extract fields from the central directory record. */
+ pStat->m_file_index = file_index;
+ pStat->m_central_dir_ofs = MZ_ZIP_ARRAY_ELEMENT(
+ &pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index);
+ pStat->m_version_made_by = MZ_READ_LE16(
+ p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS);
+ pStat->m_version_needed = MZ_READ_LE16(
+ p + MZ_ZIP_CDH_VERSION_NEEDED_OFS);
+ pStat->m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS);
+ pStat->m_method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS);
+# ifndef MINIZ_NO_TIME
+ pStat->m_time = mz_zip_dos_to_time_t(
+ MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_TIME_OFS),
+ MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_DATE_OFS));
+# endif
+ pStat->m_crc32 = MZ_READ_LE32(p + MZ_ZIP_CDH_CRC32_OFS);
+ pStat->m_comp_size = MZ_READ_LE32(p +
+ MZ_ZIP_CDH_COMPRESSED_SIZE_OFS);
+ pStat->m_uncomp_size = MZ_READ_LE32(
+ p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS);
+ pStat->m_internal_attr = MZ_READ_LE16(p +
+ MZ_ZIP_CDH_INTERNAL_ATTR_OFS);
+ pStat->m_external_attr = MZ_READ_LE32(p +
+ MZ_ZIP_CDH_EXTERNAL_ATTR_OFS);
+ pStat->m_local_header_ofs = MZ_READ_LE32(
+ p + MZ_ZIP_CDH_LOCAL_HEADER_OFS);
+
+ /* Copy as much of the filename and comment as possible. */
+ n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE - 1);
+ memcpy(pStat->m_filename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
+ pStat->m_filename[n] = '\0';
+
+ n = MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS);
+ n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE - 1);
+ pStat->m_comment_size = n;
+ memcpy(pStat->m_comment,
+ p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) +
+ MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS),
+ n);
+ pStat->m_comment[n] = '\0';
+
+ /* Set some flags for convienance */
+ pStat->m_is_directory = mz_zip_reader_is_file_a_directory(
+ pZip, file_index);
+ pStat->m_is_encrypted = mz_zip_reader_is_file_encrypted(pZip,
+ file_index);
+ pStat->m_is_supported = mz_zip_reader_is_file_supported(pZip,
+ file_index);
+
+ /* See if we need to read any zip64 extended information fields. */
+ /* Confusingly, these zip64 fields can be present even on non-zip64
+ * archives (Debian zip on a huge files from stdin piped to stdout
+ * creates them). */
+ if (MZ_MAX(MZ_MAX(pStat->m_comp_size, pStat->m_uncomp_size),
+ pStat->m_local_header_ofs) == MZ_UINT32_MAX) {
+ /* Attempt to find zip64 extended information field in the entry's
+ * extra data */
+ mz_uint32 extra_size_remaining = MZ_READ_LE16(
+ p + MZ_ZIP_CDH_EXTRA_LEN_OFS);
+
+ if (extra_size_remaining) {
+ const mz_uint8 *pExtra_data =
+ p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
+
+ do {
+ mz_uint32 field_id;
+ mz_uint32 field_data_size;
+
+ if (extra_size_remaining < (sizeof(mz_uint16) * 2))
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ field_id = MZ_READ_LE16(pExtra_data);
+ field_data_size = MZ_READ_LE16(pExtra_data +
+ sizeof(mz_uint16));
+
+ if ((field_data_size + sizeof(mz_uint16) * 2) >
+ extra_size_remaining)
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ if (field_id ==
+ MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) {
+ const mz_uint8 *pField_data = pExtra_data +
+ sizeof(mz_uint16) * 2;
+ mz_uint32 field_data_remaining = field_data_size;
+
+ if (pFound_zip64_extra_data)
+ *pFound_zip64_extra_data = MZ_TRUE;
+
+ if (pStat->m_uncomp_size == MZ_UINT32_MAX) {
+ if (field_data_remaining < sizeof(mz_uint64))
+ return mz_zip_set_error(
+ pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ pStat->m_uncomp_size = MZ_READ_LE64(pField_data);
+ pField_data += sizeof(mz_uint64);
+ field_data_remaining -= sizeof(mz_uint64);
+ }
+
+ if (pStat->m_comp_size == MZ_UINT32_MAX) {
+ if (field_data_remaining < sizeof(mz_uint64))
+ return mz_zip_set_error(
+ pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ pStat->m_comp_size = MZ_READ_LE64(pField_data);
+ pField_data += sizeof(mz_uint64);
+ field_data_remaining -= sizeof(mz_uint64);
+ }
+
+ if (pStat->m_local_header_ofs == MZ_UINT32_MAX) {
+ if (field_data_remaining < sizeof(mz_uint64))
+ return mz_zip_set_error(
+ pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ pStat->m_local_header_ofs = MZ_READ_LE64(pField_data);
+ pField_data += sizeof(mz_uint64);
+ field_data_remaining -= sizeof(mz_uint64);
+ }
+
+ break;
+ }
+
+ pExtra_data += sizeof(mz_uint16) * 2 + field_data_size;
+ extra_size_remaining = extra_size_remaining -
+ sizeof(mz_uint16) * 2 -
+ field_data_size;
+ } while (extra_size_remaining);
+ }
+ }
+
+ return MZ_TRUE;
+}
+
+static MZ_FORCEINLINE mz_bool mz_zip_string_equal(const char *pA,
+ const char *pB,
+ mz_uint len,
+ mz_uint flags) {
+ mz_uint i;
+ if (flags & MZ_ZIP_FLAG_CASE_SENSITIVE)
+ return 0 == memcmp(pA, pB, len);
+ for (i = 0; i < len; ++i)
+ if (MZ_TOLOWER(pA[i]) != MZ_TOLOWER(pB[i]))
+ return MZ_FALSE;
+ return MZ_TRUE;
+}
+
+static MZ_FORCEINLINE int mz_zip_filename_compare(
+ const mz_zip_array *pCentral_dir_array,
+ const mz_zip_array *pCentral_dir_offsets, mz_uint l_index,
+ const char *pR, mz_uint r_len) {
+ const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(
+ pCentral_dir_array, mz_uint8,
+ MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets,
+ mz_uint32, l_index)),
+ *pE;
+ mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ mz_uint8 l = 0, r = 0;
+ pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
+ pE = pL + MZ_MIN(l_len, r_len);
+ while (pL < pE) {
+ if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR)))
+ break;
+ pL++;
+ pR++;
+ }
+ return (pL == pE) ? (int) (l_len - r_len) : (l - r);
+}
+
+static mz_bool mz_zip_locate_file_binary_search(mz_zip_archive *pZip,
+ const char *pFilename,
+ mz_uint32 *pIndex) {
+ mz_zip_internal_state *pState = pZip->m_pState;
+ const mz_zip_array *pCentral_dir_offsets =
+ &pState->m_central_dir_offsets;
+ const mz_zip_array *pCentral_dir = &pState->m_central_dir;
+ mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT(
+ &pState->m_sorted_central_dir_offsets, mz_uint32, 0);
+ const mz_uint32 size = pZip->m_total_files;
+ const mz_uint filename_len = (mz_uint) strlen(pFilename);
+
+ if (pIndex)
+ *pIndex = 0;
+
+ if (size) {
+ /* yes I could use uint32_t's, but then we would have to add some
+ * special case checks in the loop, argh, and */
+ /* honestly the major expense here on 32-bit CPU's will still be
+ * the filename compare */
+ mz_int64 l = 0, h = (mz_int64) size - 1;
+
+ while (l <= h) {
+ mz_int64 m = l + ((h - l) >> 1);
+ mz_uint32 file_index = pIndices[(mz_uint32) m];
+
+ int comp = mz_zip_filename_compare(
+ pCentral_dir, pCentral_dir_offsets, file_index, pFilename,
+ filename_len);
+ if (!comp) {
+ if (pIndex)
+ *pIndex = file_index;
+ return MZ_TRUE;
+ } else if (comp < 0)
+ l = m + 1;
+ else
+ h = m - 1;
+ }
+ }
+
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND);
+}
+
+int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName,
+ const char *pComment, mz_uint flags) {
+ mz_uint32 index;
+ if (!mz_zip_reader_locate_file_v2(pZip, pName, pComment, flags,
+ &index))
+ return -1;
+ else
+ return (int) index;
+}
+
+mz_bool mz_zip_reader_locate_file_v2(mz_zip_archive *pZip,
+ const char *pName,
+ const char *pComment,
+ mz_uint flags,
+ mz_uint32 *pIndex) {
+ mz_uint file_index;
+ size_t name_len, comment_len;
+
+ if (pIndex)
+ *pIndex = 0;
+
+ if ((!pZip) || (!pZip->m_pState) || (!pName))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ /* See if we can use a binary search */
+ if (((pZip->m_pState->m_init_flags &
+ MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0) &&
+ (pZip->m_zip_mode == MZ_ZIP_MODE_READING) &&
+ ((flags & (MZ_ZIP_FLAG_IGNORE_PATH |
+ MZ_ZIP_FLAG_CASE_SENSITIVE)) == 0) &&
+ (!pComment) &&
+ (pZip->m_pState->m_sorted_central_dir_offsets.m_size)) {
+ return mz_zip_locate_file_binary_search(pZip, pName, pIndex);
+ }
+
+ /* Locate the entry by scanning the entire central directory */
+ name_len = strlen(pName);
+ if (name_len > MZ_UINT16_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ comment_len = pComment ? strlen(pComment) : 0;
+ if (comment_len > MZ_UINT16_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ for (file_index = 0; file_index < pZip->m_total_files;
+ file_index++) {
+ const mz_uint8 *pHeader = &MZ_ZIP_ARRAY_ELEMENT(
+ &pZip->m_pState->m_central_dir, mz_uint8,
+ MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets,
+ mz_uint32, file_index));
+ mz_uint filename_len = MZ_READ_LE16(pHeader +
+ MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ const char *pFilename = (const char *) pHeader +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE;
+ if (filename_len < name_len)
+ continue;
+ if (comment_len) {
+ mz_uint file_extra_len = MZ_READ_LE16(pHeader +
+ MZ_ZIP_CDH_EXTRA_LEN_OFS),
+ file_comment_len = MZ_READ_LE16(
+ pHeader + MZ_ZIP_CDH_COMMENT_LEN_OFS);
+ const char *pFile_comment = pFilename + filename_len +
+ file_extra_len;
+ if ((file_comment_len != comment_len) ||
+ (!mz_zip_string_equal(pComment, pFile_comment,
+ file_comment_len, flags)))
+ continue;
+ }
+ if ((flags & MZ_ZIP_FLAG_IGNORE_PATH) && (filename_len)) {
+ int ofs = filename_len - 1;
+ do {
+ if ((pFilename[ofs] == '/') || (pFilename[ofs] == '\\') ||
+ (pFilename[ofs] == ':'))
+ break;
+ } while (--ofs >= 0);
+ ofs++;
+ pFilename += ofs;
+ filename_len -= ofs;
+ }
+ if ((filename_len == name_len) &&
+ (mz_zip_string_equal(pName, pFilename, filename_len,
+ flags))) {
+ if (pIndex)
+ *pIndex = file_index;
+ return MZ_TRUE;
+ }
+ }
+
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND);
+}
+
+static mz_bool mz_zip_reader_extract_to_mem_no_alloc1(
+ mz_zip_archive *pZip, mz_uint file_index, void *pBuf,
+ size_t buf_size, mz_uint flags, void *pUser_read_buf,
+ size_t user_read_buf_size, const mz_zip_archive_file_stat *st) {
+ int status = TINFL_STATUS_DONE;
+ mz_uint64 needed_size, cur_file_ofs, comp_remaining,
+ out_buf_ofs = 0, read_buf_size, read_buf_ofs = 0,
+ read_buf_avail;
+ mz_zip_archive_file_stat file_stat;
+ void *pRead_buf;
+ mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ sizeof(mz_uint32) - 1) /
+ sizeof(mz_uint32)];
+ mz_uint8 *pLocal_header = (mz_uint8 *) local_header_u32;
+ tinfl_decompressor inflator;
+
+ if ((!pZip) || (!pZip->m_pState) || ((buf_size) && (!pBuf)) ||
+ ((user_read_buf_size) && (!pUser_read_buf)) || (!pZip->m_pRead))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (st) {
+ file_stat = *st;
+ } else if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
+ return MZ_FALSE;
+
+ /* A directory or zero length file */
+ if ((file_stat.m_is_directory) || (!file_stat.m_comp_size))
+ return MZ_TRUE;
+
+ /* Encryption and patch files are not supported. */
+ if (file_stat.m_bit_flag &
+ (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
+
+ /* This function only supports decompressing stored and deflate. */
+ if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) &&
+ (file_stat.m_method != 0) &&
+ (file_stat.m_method != MZ_DEFLATED))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
+
+ /* Ensure supplied output buffer is large enough. */
+ needed_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
+ ? file_stat.m_comp_size
+ : file_stat.m_uncomp_size;
+ if (buf_size < needed_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_BUF_TOO_SMALL);
+
+ /* Read and parse the local directory entry. */
+ cur_file_ofs = file_stat.m_local_header_ofs;
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header,
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+
+ if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ cur_file_ofs +=
+ (mz_uint64) (MZ_ZIP_LOCAL_DIR_HEADER_SIZE) +
+ MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) +
+ MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
+ if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ||
+ (!file_stat.m_method)) {
+ /* The file is stored or the caller has requested the compressed
+ * data. */
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf,
+ (size_t) needed_size) != needed_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) == 0) {
+ if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *) pBuf,
+ (size_t) file_stat.m_uncomp_size) !=
+ file_stat.m_crc32)
+ return mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED);
+ }
+# endif
+
+ return MZ_TRUE;
+ }
+
+ /* Decompress the file either directly from memory or from a file
+ * input buffer. */
+ tinfl_init(&inflator);
+
+ if (pZip->m_pState->m_pMem) {
+ /* Read directly from the archive in memory. */
+ pRead_buf = (mz_uint8 *) pZip->m_pState->m_pMem + cur_file_ofs;
+ read_buf_size = read_buf_avail = file_stat.m_comp_size;
+ comp_remaining = 0;
+ } else if (pUser_read_buf) {
+ /* Use a user provided read buffer. */
+ if (!user_read_buf_size)
+ return MZ_FALSE;
+ pRead_buf = (mz_uint8 *) pUser_read_buf;
+ read_buf_size = user_read_buf_size;
+ read_buf_avail = 0;
+ comp_remaining = file_stat.m_comp_size;
+ } else {
+ /* Temporarily allocate a read buffer. */
+ read_buf_size = MZ_MIN(file_stat.m_comp_size,
+ (mz_uint64) MZ_ZIP_MAX_IO_BUF_SIZE);
+ if (((sizeof(size_t) == sizeof(mz_uint32))) &&
+ (read_buf_size > 0x7FFFFFFF))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1,
+ (size_t) read_buf_size)))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ read_buf_avail = 0;
+ comp_remaining = file_stat.m_comp_size;
+ }
+
+ do {
+ /* The size_t cast here should be OK because we've verified that
+ * the output buffer is >= file_stat.m_uncomp_size above */
+ size_t in_buf_size,
+ out_buf_size = (size_t) (file_stat.m_uncomp_size -
+ out_buf_ofs);
+ if ((!read_buf_avail) && (!pZip->m_pState->m_pMem)) {
+ read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf,
+ (size_t) read_buf_avail) != read_buf_avail) {
+ status = TINFL_STATUS_FAILED;
+ mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
+ break;
+ }
+ cur_file_ofs += read_buf_avail;
+ comp_remaining -= read_buf_avail;
+ read_buf_ofs = 0;
+ }
+ in_buf_size = (size_t) read_buf_avail;
+ status = tinfl_decompress(
+ &inflator, (mz_uint8 *) pRead_buf + read_buf_ofs,
+ &in_buf_size, (mz_uint8 *) pBuf,
+ (mz_uint8 *) pBuf + out_buf_ofs, &out_buf_size,
+ TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF |
+ (comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0));
+ read_buf_avail -= in_buf_size;
+ read_buf_ofs += in_buf_size;
+ out_buf_ofs += out_buf_size;
+ } while (status == TINFL_STATUS_NEEDS_MORE_INPUT);
+
+ if (status == TINFL_STATUS_DONE) {
+ /* Make sure the entire file was decompressed, and check its CRC.
+ */
+ if (out_buf_ofs != file_stat.m_uncomp_size) {
+ mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
+ status = TINFL_STATUS_FAILED;
+ }
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ else if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *) pBuf,
+ (size_t) file_stat.m_uncomp_size) !=
+ file_stat.m_crc32) {
+ mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED);
+ status = TINFL_STATUS_FAILED;
+ }
+# endif
+ }
+
+ if ((!pZip->m_pState->m_pMem) && (!pUser_read_buf))
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+
+ return status == TINFL_STATUS_DONE;
+}
+
+mz_bool mz_zip_reader_extract_to_mem_no_alloc(
+ mz_zip_archive *pZip, mz_uint file_index, void *pBuf,
+ size_t buf_size, mz_uint flags, void *pUser_read_buf,
+ size_t user_read_buf_size) {
+ return mz_zip_reader_extract_to_mem_no_alloc1(
+ pZip, file_index, pBuf, buf_size, flags, pUser_read_buf,
+ user_read_buf_size, NULL);
+}
+
+mz_bool mz_zip_reader_extract_file_to_mem_no_alloc(
+ mz_zip_archive *pZip, const char *pFilename, void *pBuf,
+ size_t buf_size, mz_uint flags, void *pUser_read_buf,
+ size_t user_read_buf_size) {
+ mz_uint32 file_index;
+ if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags,
+ &file_index))
+ return MZ_FALSE;
+ return mz_zip_reader_extract_to_mem_no_alloc1(
+ pZip, file_index, pBuf, buf_size, flags, pUser_read_buf,
+ user_read_buf_size, NULL);
+}
+
+mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip,
+ mz_uint file_index, void *pBuf,
+ size_t buf_size, mz_uint flags) {
+ return mz_zip_reader_extract_to_mem_no_alloc1(
+ pZip, file_index, pBuf, buf_size, flags, NULL, 0, NULL);
+}
+
+mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip,
+ const char *pFilename,
+ void *pBuf, size_t buf_size,
+ mz_uint flags) {
+ return mz_zip_reader_extract_file_to_mem_no_alloc(
+ pZip, pFilename, pBuf, buf_size, flags, NULL, 0);
+}
+
+void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip,
+ mz_uint file_index, size_t *pSize,
+ mz_uint flags) {
+ mz_zip_archive_file_stat file_stat;
+ mz_uint64 alloc_size;
+ void *pBuf;
+
+ if (pSize)
+ *pSize = 0;
+
+ if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
+ return NULL;
+
+ alloc_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
+ ? file_stat.m_comp_size
+ : file_stat.m_uncomp_size;
+ if (((sizeof(size_t) == sizeof(mz_uint32))) &&
+ (alloc_size > 0x7FFFFFFF)) {
+ mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+ return NULL;
+ }
+
+ if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1,
+ (size_t) alloc_size))) {
+ mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ return NULL;
+ }
+
+ if (!mz_zip_reader_extract_to_mem_no_alloc1(
+ pZip, file_index, pBuf, (size_t) alloc_size, flags, NULL, 0,
+ &file_stat)) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
+ return NULL;
+ }
+
+ if (pSize)
+ *pSize = (size_t) alloc_size;
+ return pBuf;
+}
+
+void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip,
+ const char *pFilename,
+ size_t *pSize,
+ mz_uint flags) {
+ mz_uint32 file_index;
+ if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags,
+ &file_index)) {
+ if (pSize)
+ *pSize = 0;
+ return MZ_FALSE;
+ }
+ return mz_zip_reader_extract_to_heap(pZip, file_index, pSize,
+ flags);
+}
+
+mz_bool mz_zip_reader_extract_to_callback(
+ mz_zip_archive *pZip, mz_uint file_index,
+ mz_file_write_func pCallback, void *pOpaque, mz_uint flags) {
+ int status = TINFL_STATUS_DONE;
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ mz_uint file_crc32 = MZ_CRC32_INIT;
+# endif
+ mz_uint64 read_buf_size, read_buf_ofs = 0, read_buf_avail,
+ comp_remaining, out_buf_ofs = 0,
+ cur_file_ofs;
+ mz_zip_archive_file_stat file_stat;
+ void *pRead_buf = NULL;
+ void *pWrite_buf = NULL;
+ mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ sizeof(mz_uint32) - 1) /
+ sizeof(mz_uint32)];
+ mz_uint8 *pLocal_header = (mz_uint8 *) local_header_u32;
+
+ if ((!pZip) || (!pZip->m_pState) || (!pCallback) ||
+ (!pZip->m_pRead))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
+ return MZ_FALSE;
+
+ /* A directory or zero length file */
+ if ((file_stat.m_is_directory) || (!file_stat.m_comp_size))
+ return MZ_TRUE;
+
+ /* Encryption and patch files are not supported. */
+ if (file_stat.m_bit_flag &
+ (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
+
+ /* This function only supports decompressing stored and deflate. */
+ if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) &&
+ (file_stat.m_method != 0) &&
+ (file_stat.m_method != MZ_DEFLATED))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
+
+ /* Read and do some minimal validation of the local directory entry
+ * (this doesn't crack the zip64 stuff, which we already have from
+ * the central dir) */
+ cur_file_ofs = file_stat.m_local_header_ofs;
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header,
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+
+ if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ cur_file_ofs +=
+ (mz_uint64) (MZ_ZIP_LOCAL_DIR_HEADER_SIZE) +
+ MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) +
+ MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
+ if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ /* Decompress the file either directly from memory or from a file
+ * input buffer. */
+ if (pZip->m_pState->m_pMem) {
+ pRead_buf = (mz_uint8 *) pZip->m_pState->m_pMem + cur_file_ofs;
+ read_buf_size = read_buf_avail = file_stat.m_comp_size;
+ comp_remaining = 0;
+ } else {
+ read_buf_size = MZ_MIN(file_stat.m_comp_size,
+ (mz_uint64) MZ_ZIP_MAX_IO_BUF_SIZE);
+ if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1,
+ (size_t) read_buf_size)))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ read_buf_avail = 0;
+ comp_remaining = file_stat.m_comp_size;
+ }
+
+ if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ||
+ (!file_stat.m_method)) {
+ /* The file is stored or the caller has requested the compressed
+ * data. */
+ if (pZip->m_pState->m_pMem) {
+ if (((sizeof(size_t) == sizeof(mz_uint32))) &&
+ (file_stat.m_comp_size > MZ_UINT32_MAX))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ if (pCallback(pOpaque, out_buf_ofs, pRead_buf,
+ (size_t) file_stat.m_comp_size) !=
+ file_stat.m_comp_size) {
+ mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
+ status = TINFL_STATUS_FAILED;
+ } else if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) {
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ file_crc32 = (mz_uint32) mz_crc32(
+ file_crc32, (const mz_uint8 *) pRead_buf,
+ (size_t) file_stat.m_comp_size);
+# endif
+ }
+
+ cur_file_ofs += file_stat.m_comp_size;
+ out_buf_ofs += file_stat.m_comp_size;
+ comp_remaining = 0;
+ } else {
+ while (comp_remaining) {
+ read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf,
+ (size_t) read_buf_avail) !=
+ read_buf_avail) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ status = TINFL_STATUS_FAILED;
+ break;
+ }
+
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) {
+ file_crc32 = (mz_uint32) mz_crc32(
+ file_crc32, (const mz_uint8 *) pRead_buf,
+ (size_t) read_buf_avail);
+ }
+# endif
+
+ if (pCallback(pOpaque, out_buf_ofs, pRead_buf,
+ (size_t) read_buf_avail) != read_buf_avail) {
+ mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
+ status = TINFL_STATUS_FAILED;
+ break;
+ }
+
+ cur_file_ofs += read_buf_avail;
+ out_buf_ofs += read_buf_avail;
+ comp_remaining -= read_buf_avail;
+ }
+ }
+ } else {
+ tinfl_decompressor inflator;
+ tinfl_init(&inflator);
+
+ if (NULL == (pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1,
+ TINFL_LZ_DICT_SIZE))) {
+ mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ status = TINFL_STATUS_FAILED;
+ } else {
+ do {
+ mz_uint8 *pWrite_buf_cur = (mz_uint8 *) pWrite_buf +
+ (out_buf_ofs &
+ (TINFL_LZ_DICT_SIZE - 1));
+ size_t in_buf_size,
+ out_buf_size = TINFL_LZ_DICT_SIZE -
+ (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1));
+ if ((!read_buf_avail) && (!pZip->m_pState->m_pMem)) {
+ read_buf_avail = MZ_MIN(read_buf_size, comp_remaining);
+ if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs,
+ pRead_buf, (size_t) read_buf_avail) !=
+ read_buf_avail) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ status = TINFL_STATUS_FAILED;
+ break;
+ }
+ cur_file_ofs += read_buf_avail;
+ comp_remaining -= read_buf_avail;
+ read_buf_ofs = 0;
+ }
+
+ in_buf_size = (size_t) read_buf_avail;
+ status = tinfl_decompress(
+ &inflator, (const mz_uint8 *) pRead_buf + read_buf_ofs,
+ &in_buf_size, (mz_uint8 *) pWrite_buf, pWrite_buf_cur,
+ &out_buf_size,
+ comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0);
+ read_buf_avail -= in_buf_size;
+ read_buf_ofs += in_buf_size;
+
+ if (out_buf_size) {
+ if (pCallback(pOpaque, out_buf_ofs, pWrite_buf_cur,
+ out_buf_size) != out_buf_size) {
+ mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED);
+ status = TINFL_STATUS_FAILED;
+ break;
+ }
+
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ file_crc32 = (mz_uint32) mz_crc32(
+ file_crc32, pWrite_buf_cur, out_buf_size);
+# endif
+ if ((out_buf_ofs += out_buf_size) >
+ file_stat.m_uncomp_size) {
+ mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
+ status = TINFL_STATUS_FAILED;
+ break;
+ }
+ }
+ } while ((status == TINFL_STATUS_NEEDS_MORE_INPUT) ||
+ (status == TINFL_STATUS_HAS_MORE_OUTPUT));
+ }
+ }
+
+ if ((status == TINFL_STATUS_DONE) &&
+ (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))) {
+ /* Make sure the entire file was decompressed, and check its CRC.
+ */
+ if (out_buf_ofs != file_stat.m_uncomp_size) {
+ mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
+ status = TINFL_STATUS_FAILED;
+ }
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ else if (file_crc32 != file_stat.m_crc32) {
+ mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED);
+ status = TINFL_STATUS_FAILED;
+ }
+# endif
+ }
+
+ if (!pZip->m_pState->m_pMem)
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+
+ if (pWrite_buf)
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pWrite_buf);
+
+ return status == TINFL_STATUS_DONE;
+}
+
+mz_bool mz_zip_reader_extract_file_to_callback(
+ mz_zip_archive *pZip, const char *pFilename,
+ mz_file_write_func pCallback, void *pOpaque, mz_uint flags) {
+ mz_uint32 file_index;
+ if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags,
+ &file_index))
+ return MZ_FALSE;
+
+ return mz_zip_reader_extract_to_callback(pZip, file_index,
+ pCallback, pOpaque, flags);
+}
+
+mz_zip_reader_extract_iter_state *mz_zip_reader_extract_iter_new(
+ mz_zip_archive *pZip, mz_uint file_index, mz_uint flags) {
+ mz_zip_reader_extract_iter_state *pState;
+ mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ sizeof(mz_uint32) - 1) /
+ sizeof(mz_uint32)];
+ mz_uint8 *pLocal_header = (mz_uint8 *) local_header_u32;
+
+ /* Argument sanity check */
+ if ((!pZip) || (!pZip->m_pState))
+ return NULL;
+
+ /* Allocate an iterator status structure */
+ pState = (mz_zip_reader_extract_iter_state *) pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1,
+ sizeof(mz_zip_reader_extract_iter_state));
+ if (!pState) {
+ mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ return NULL;
+ }
+
+ /* Fetch file details */
+ if (!mz_zip_reader_file_stat(pZip, file_index,
+ &pState->file_stat)) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+
+ /* Encryption and patch files are not supported. */
+ if (pState->file_stat.m_bit_flag &
+ (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION |
+ MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG)) {
+ mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+
+ /* This function only supports decompressing stored and deflate. */
+ if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) &&
+ (pState->file_stat.m_method != 0) &&
+ (pState->file_stat.m_method != MZ_DEFLATED)) {
+ mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+
+ /* Init state - save args */
+ pState->pZip = pZip;
+ pState->flags = flags;
+
+ /* Init state - reset variables to defaults */
+ pState->status = TINFL_STATUS_DONE;
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ pState->file_crc32 = MZ_CRC32_INIT;
+# endif
+ pState->read_buf_ofs = 0;
+ pState->out_buf_ofs = 0;
+ pState->pRead_buf = NULL;
+ pState->pWrite_buf = NULL;
+ pState->out_blk_remain = 0;
+
+ /* Read and parse the local directory entry. */
+ pState->cur_file_ofs = pState->file_stat.m_local_header_ofs;
+ if (pZip->m_pRead(pZip->m_pIO_opaque, pState->cur_file_ofs,
+ pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+
+ if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+
+ pState->cur_file_ofs +=
+ (mz_uint64) (MZ_ZIP_LOCAL_DIR_HEADER_SIZE) +
+ MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) +
+ MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS);
+ if ((pState->cur_file_ofs + pState->file_stat.m_comp_size) >
+ pZip->m_archive_size) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+
+ /* Decompress the file either directly from memory or from a file
+ * input buffer. */
+ if (pZip->m_pState->m_pMem) {
+ pState->pRead_buf = (mz_uint8 *) pZip->m_pState->m_pMem +
+ pState->cur_file_ofs;
+ pState->read_buf_size = pState->read_buf_avail =
+ pState->file_stat.m_comp_size;
+ pState->comp_remaining = pState->file_stat.m_comp_size;
+ } else {
+ if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ||
+ (!pState->file_stat.m_method))) {
+ /* Decompression required, therefore intermediate read buffer
+ * required */
+ pState->read_buf_size = MZ_MIN(
+ pState->file_stat.m_comp_size,
+ (mz_uint64) MZ_ZIP_MAX_IO_BUF_SIZE);
+ if (NULL == (pState->pRead_buf = pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1,
+ (size_t) pState->read_buf_size))) {
+ mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+ } else {
+ /* Decompression not required - we will be reading directly into
+ * user buffer, no temp buf required */
+ pState->read_buf_size = 0;
+ }
+ pState->read_buf_avail = 0;
+ pState->comp_remaining = pState->file_stat.m_comp_size;
+ }
+
+ if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ||
+ (!pState->file_stat.m_method))) {
+ /* Decompression required, init decompressor */
+ tinfl_init(&pState->inflator);
+
+ /* Allocate write buffer */
+ if (NULL == (pState->pWrite_buf = pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE))) {
+ mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ if (pState->pRead_buf)
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState->pRead_buf);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ return NULL;
+ }
+ }
+
+ return pState;
+}
+
+mz_zip_reader_extract_iter_state *mz_zip_reader_extract_file_iter_new(
+ mz_zip_archive *pZip, const char *pFilename, mz_uint flags) {
+ mz_uint32 file_index;
+
+ /* Locate file index by name */
+ if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags,
+ &file_index))
+ return NULL;
+
+ /* Construct iterator */
+ return mz_zip_reader_extract_iter_new(pZip, file_index, flags);
+}
+
+size_t mz_zip_reader_extract_iter_read(
+ mz_zip_reader_extract_iter_state *pState, void *pvBuf,
+ size_t buf_size) {
+ size_t copied_to_caller = 0;
+
+ /* Argument sanity check */
+ if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState) ||
+ (!pvBuf))
+ return 0;
+
+ if ((pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ||
+ (!pState->file_stat.m_method)) {
+ /* The file is stored or the caller has requested the compressed
+ * data, calc amount to return. */
+ copied_to_caller = (size_t) MZ_MIN(buf_size,
+ pState->comp_remaining);
+
+ /* Zip is in memory....or requires reading from a file? */
+ if (pState->pZip->m_pState->m_pMem) {
+ /* Copy data to caller's buffer */
+ memcpy(pvBuf, pState->pRead_buf, copied_to_caller);
+ pState->pRead_buf = ((mz_uint8 *) pState->pRead_buf) +
+ copied_to_caller;
+ } else {
+ /* Read directly into caller's buffer */
+ if (pState->pZip->m_pRead(
+ pState->pZip->m_pIO_opaque, pState->cur_file_ofs, pvBuf,
+ copied_to_caller) != copied_to_caller) {
+ /* Failed to read all that was asked for, flag failure and
+ * alert user */
+ mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED);
+ pState->status = TINFL_STATUS_FAILED;
+ copied_to_caller = 0;
+ }
+ }
+
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ /* Compute CRC if not returning compressed data only */
+ if (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA))
+ pState->file_crc32 = (mz_uint32) mz_crc32(
+ pState->file_crc32, (const mz_uint8 *) pvBuf,
+ copied_to_caller);
+# endif
+
+ /* Advance offsets, dec counters */
+ pState->cur_file_ofs += copied_to_caller;
+ pState->out_buf_ofs += copied_to_caller;
+ pState->comp_remaining -= copied_to_caller;
+ } else {
+ do {
+ /* Calc ptr to write buffer - given current output pos and block
+ * size */
+ mz_uint8 *pWrite_buf_cur = (mz_uint8 *) pState->pWrite_buf +
+ (pState->out_buf_ofs &
+ (TINFL_LZ_DICT_SIZE - 1));
+
+ /* Calc max output size - given current output pos and block
+ * size */
+ size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE -
+ (pState->out_buf_ofs &
+ (TINFL_LZ_DICT_SIZE - 1));
+
+ if (!pState->out_blk_remain) {
+ /* Read more data from file if none available (and reading
+ * from file) */
+ if ((!pState->read_buf_avail) &&
+ (!pState->pZip->m_pState->m_pMem)) {
+ /* Calc read size */
+ pState->read_buf_avail = MZ_MIN(pState->read_buf_size,
+ pState->comp_remaining);
+ if (pState->pZip->m_pRead(
+ pState->pZip->m_pIO_opaque, pState->cur_file_ofs,
+ pState->pRead_buf,
+ (size_t) pState->read_buf_avail) !=
+ pState->read_buf_avail) {
+ mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED);
+ pState->status = TINFL_STATUS_FAILED;
+ break;
+ }
+
+ /* Advance offsets, dec counters */
+ pState->cur_file_ofs += pState->read_buf_avail;
+ pState->comp_remaining -= pState->read_buf_avail;
+ pState->read_buf_ofs = 0;
+ }
+
+ /* Perform decompression */
+ in_buf_size = (size_t) pState->read_buf_avail;
+ pState->status = tinfl_decompress(
+ &pState->inflator,
+ (const mz_uint8 *) pState->pRead_buf +
+ pState->read_buf_ofs,
+ &in_buf_size, (mz_uint8 *) pState->pWrite_buf,
+ pWrite_buf_cur, &out_buf_size,
+ pState->comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0);
+ pState->read_buf_avail -= in_buf_size;
+ pState->read_buf_ofs += in_buf_size;
+
+ /* Update current output block size remaining */
+ pState->out_blk_remain = out_buf_size;
+ }
+
+ if (pState->out_blk_remain) {
+ /* Calc amount to return. */
+ size_t to_copy = MZ_MIN((buf_size - copied_to_caller),
+ pState->out_blk_remain);
+
+ /* Copy data to caller's buffer */
+ memcpy((mz_uint8 *) pvBuf + copied_to_caller, pWrite_buf_cur,
+ to_copy);
+
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ /* Perform CRC */
+ pState->file_crc32 = (mz_uint32) mz_crc32(
+ pState->file_crc32, pWrite_buf_cur, to_copy);
+# endif
+
+ /* Decrement data consumed from block */
+ pState->out_blk_remain -= to_copy;
+
+ /* Inc output offset, while performing sanity check */
+ if ((pState->out_buf_ofs += to_copy) >
+ pState->file_stat.m_uncomp_size) {
+ mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED);
+ pState->status = TINFL_STATUS_FAILED;
+ break;
+ }
+
+ /* Increment counter of data copied to caller */
+ copied_to_caller += to_copy;
+ }
+ } while ((copied_to_caller < buf_size) &&
+ ((pState->status == TINFL_STATUS_NEEDS_MORE_INPUT) ||
+ (pState->status == TINFL_STATUS_HAS_MORE_OUTPUT)));
+ }
+
+ /* Return how many bytes were copied into user buffer */
+ return copied_to_caller;
+}
+
+mz_bool mz_zip_reader_extract_iter_free(
+ mz_zip_reader_extract_iter_state *pState) {
+ int status;
+
+ /* Argument sanity check */
+ if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState))
+ return MZ_FALSE;
+
+ /* Was decompression completed and requested? */
+ if ((pState->status == TINFL_STATUS_DONE) &&
+ (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA))) {
+ /* Make sure the entire file was decompressed, and check its CRC.
+ */
+ if (pState->out_buf_ofs != pState->file_stat.m_uncomp_size) {
+ mz_zip_set_error(pState->pZip,
+ MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE);
+ pState->status = TINFL_STATUS_FAILED;
+ }
+# ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ else if (pState->file_crc32 != pState->file_stat.m_crc32) {
+ mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED);
+ pState->status = TINFL_STATUS_FAILED;
+ }
+# endif
+ }
+
+ /* Free buffers */
+ if (!pState->pZip->m_pState->m_pMem)
+ pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque,
+ pState->pRead_buf);
+ if (pState->pWrite_buf)
+ pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque,
+ pState->pWrite_buf);
+
+ /* Save status */
+ status = pState->status;
+
+ /* Free context */
+ pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState);
+
+ return status == TINFL_STATUS_DONE;
+}
+
+# ifndef MINIZ_NO_STDIO
+static size_t mz_zip_file_write_callback(void *pOpaque, mz_uint64 ofs,
+ const void *pBuf, size_t n) {
+ (void) ofs;
+
+ return MZ_FWRITE(pBuf, 1, n, (MZ_FILE *) pOpaque);
+}
+
+mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip,
+ mz_uint file_index,
+ const char *pDst_filename,
+ mz_uint flags) {
+ mz_bool status;
+ mz_zip_archive_file_stat file_stat;
+ MZ_FILE *pFile;
+
+ if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
+ return MZ_FALSE;
+
+ if ((file_stat.m_is_directory) || (!file_stat.m_is_supported))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
+
+ pFile = MZ_FOPEN(pDst_filename, "wb");
+ if (!pFile)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
+
+ status = mz_zip_reader_extract_to_callback(
+ pZip, file_index, mz_zip_file_write_callback, pFile, flags);
+
+ if (MZ_FCLOSE(pFile) == EOF) {
+ if (status)
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
+
+ status = MZ_FALSE;
+ }
+
+# if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO)
+ if (status)
+ mz_zip_set_file_times(pDst_filename, file_stat.m_time,
+ file_stat.m_time);
+# endif
+
+ return status;
+}
+
+mz_bool mz_zip_reader_extract_file_to_file(
+ mz_zip_archive *pZip, const char *pArchive_filename,
+ const char *pDst_filename, mz_uint flags) {
+ mz_uint32 file_index;
+ if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL,
+ flags, &file_index))
+ return MZ_FALSE;
+
+ return mz_zip_reader_extract_to_file(pZip, file_index,
+ pDst_filename, flags);
+}
+
+mz_bool mz_zip_reader_extract_to_cfile(mz_zip_archive *pZip,
+ mz_uint file_index,
+ MZ_FILE *pFile,
+ mz_uint flags) {
+ mz_zip_archive_file_stat file_stat;
+
+ if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat))
+ return MZ_FALSE;
+
+ if ((file_stat.m_is_directory) || (!file_stat.m_is_supported))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
+
+ return mz_zip_reader_extract_to_callback(
+ pZip, file_index, mz_zip_file_write_callback, pFile, flags);
+}
+
+mz_bool mz_zip_reader_extract_file_to_cfile(
+ mz_zip_archive *pZip, const char *pArchive_filename,
+ MZ_FILE *pFile, mz_uint flags) {
+ mz_uint32 file_index;
+ if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL,
+ flags, &file_index))
+ return MZ_FALSE;
+
+ return mz_zip_reader_extract_to_cfile(pZip, file_index, pFile,
+ flags);
+}
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+static size_t mz_zip_compute_crc32_callback(void *pOpaque,
+ mz_uint64 file_ofs,
+ const void *pBuf,
+ size_t n) {
+ mz_uint32 *p = (mz_uint32 *) pOpaque;
+ (void) file_ofs;
+ *p = (mz_uint32) mz_crc32(*p, (const mz_uint8 *) pBuf, n);
+ return n;
+}
+
+mz_bool mz_zip_validate_file(mz_zip_archive *pZip, mz_uint file_index,
+ mz_uint flags) {
+ mz_zip_archive_file_stat file_stat;
+ mz_zip_internal_state *pState;
+ const mz_uint8 *pCentral_dir_header;
+ mz_bool found_zip64_ext_data_in_cdir = MZ_FALSE;
+ mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE;
+ mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ sizeof(mz_uint32) - 1) /
+ sizeof(mz_uint32)];
+ mz_uint8 *pLocal_header = (mz_uint8 *) local_header_u32;
+ mz_uint64 local_header_ofs = 0;
+ mz_uint32 local_header_filename_len, local_header_extra_len,
+ local_header_crc32;
+ mz_uint64 local_header_comp_size, local_header_uncomp_size;
+ mz_uint32 uncomp_crc32 = MZ_CRC32_INIT;
+ mz_bool has_data_descriptor;
+ mz_uint32 local_header_bit_flags;
+
+ mz_zip_array file_data_array;
+ mz_zip_array_init(&file_data_array, 1);
+
+ if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) ||
+ (!pZip->m_pFree) || (!pZip->m_pRead))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (file_index > pZip->m_total_files)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pState = pZip->m_pState;
+
+ pCentral_dir_header = mz_zip_get_cdh(pZip, file_index);
+
+ if (!mz_zip_file_stat_internal(pZip, file_index,
+ pCentral_dir_header, &file_stat,
+ &found_zip64_ext_data_in_cdir))
+ return MZ_FALSE;
+
+ /* A directory or zero length file */
+ if ((file_stat.m_is_directory) || (!file_stat.m_uncomp_size))
+ return MZ_TRUE;
+
+ /* Encryption and patch files are not supported. */
+ if (file_stat.m_is_encrypted)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION);
+
+ /* This function only supports stored and deflate. */
+ if ((file_stat.m_method != 0) &&
+ (file_stat.m_method != MZ_DEFLATED))
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD);
+
+ if (!file_stat.m_is_supported)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE);
+
+ /* Read and parse the local directory entry. */
+ local_header_ofs = file_stat.m_local_header_ofs;
+ if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs,
+ pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+
+ if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ local_header_filename_len = MZ_READ_LE16(
+ pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS);
+ local_header_extra_len = MZ_READ_LE16(pLocal_header +
+ MZ_ZIP_LDH_EXTRA_LEN_OFS);
+ local_header_comp_size = MZ_READ_LE32(
+ pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS);
+ local_header_uncomp_size = MZ_READ_LE32(
+ pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS);
+ local_header_crc32 = MZ_READ_LE32(pLocal_header +
+ MZ_ZIP_LDH_CRC32_OFS);
+ local_header_bit_flags = MZ_READ_LE16(pLocal_header +
+ MZ_ZIP_LDH_BIT_FLAG_OFS);
+ has_data_descriptor = (local_header_bit_flags & 8) != 0;
+
+ if (local_header_filename_len != strlen(file_stat.m_filename))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ if ((local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ local_header_filename_len + local_header_extra_len +
+ file_stat.m_comp_size) > pZip->m_archive_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ if (!mz_zip_array_resize(
+ pZip, &file_data_array,
+ MZ_MAX(local_header_filename_len, local_header_extra_len),
+ MZ_FALSE)) {
+ mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ goto handle_failure;
+ }
+
+ if (local_header_filename_len) {
+ if (pZip->m_pRead(pZip->m_pIO_opaque,
+ local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE,
+ file_data_array.m_p,
+ local_header_filename_len) !=
+ local_header_filename_len) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ goto handle_failure;
+ }
+
+ /* I've seen 1 archive that had the same pathname, but used
+ * backslashes in the local dir and forward slashes in the central
+ * dir. Do we care about this? For now, this case will fail
+ * validation. */
+ if (memcmp(file_stat.m_filename, file_data_array.m_p,
+ local_header_filename_len) != 0) {
+ mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
+ goto handle_failure;
+ }
+ }
+
+ if ((local_header_extra_len) &&
+ ((local_header_comp_size == MZ_UINT32_MAX) ||
+ (local_header_uncomp_size == MZ_UINT32_MAX))) {
+ mz_uint32 extra_size_remaining = local_header_extra_len;
+ const mz_uint8 *pExtra_data = (const mz_uint8 *)
+ file_data_array.m_p;
+
+ if (pZip->m_pRead(pZip->m_pIO_opaque,
+ local_header_ofs +
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ local_header_filename_len,
+ file_data_array.m_p, local_header_extra_len) !=
+ local_header_extra_len) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ goto handle_failure;
+ }
+
+ do {
+ mz_uint32 field_id, field_data_size, field_total_size;
+
+ if (extra_size_remaining < (sizeof(mz_uint16) * 2)) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ goto handle_failure;
+ }
+
+ field_id = MZ_READ_LE16(pExtra_data);
+ field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
+ field_total_size = field_data_size + sizeof(mz_uint16) * 2;
+
+ if (field_total_size > extra_size_remaining) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ goto handle_failure;
+ }
+
+ if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) {
+ const mz_uint8 *pSrc_field_data = pExtra_data +
+ sizeof(mz_uint32);
+
+ if (field_data_size < sizeof(mz_uint64) * 2) {
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ goto handle_failure;
+ }
+
+ local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data);
+ local_header_comp_size = MZ_READ_LE64(pSrc_field_data +
+ sizeof(mz_uint64));
+
+ found_zip64_ext_data_in_ldir = MZ_TRUE;
+ break;
+ }
+
+ pExtra_data += field_total_size;
+ extra_size_remaining -= field_total_size;
+ } while (extra_size_remaining);
+ }
+
+ /* TODO: parse local header extra data when local_header_comp_size
+ * is 0xFFFFFFFF! (big_descriptor.zip) */
+ /* I've seen zips in the wild with the data descriptor bit set, but
+ * proper local header values and bogus data descriptors */
+ if ((has_data_descriptor) && (!local_header_comp_size) &&
+ (!local_header_crc32)) {
+ mz_uint8 descriptor_buf[32];
+ mz_bool has_id;
+ const mz_uint8 *pSrc;
+ mz_uint32 file_crc32;
+ mz_uint64 comp_size = 0, uncomp_size = 0;
+
+ mz_uint32 num_descriptor_uint32s =
+ ((pState->m_zip64) || (found_zip64_ext_data_in_ldir)) ? 6 : 4;
+
+ if (pZip->m_pRead(
+ pZip->m_pIO_opaque,
+ local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ local_header_filename_len + local_header_extra_len +
+ file_stat.m_comp_size,
+ descriptor_buf,
+ sizeof(mz_uint32) * num_descriptor_uint32s) !=
+ (sizeof(mz_uint32) * num_descriptor_uint32s)) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ goto handle_failure;
+ }
+
+ has_id = (MZ_READ_LE32(descriptor_buf) ==
+ MZ_ZIP_DATA_DESCRIPTOR_ID);
+ pSrc = has_id ? (descriptor_buf + sizeof(mz_uint32))
+ : descriptor_buf;
+
+ file_crc32 = MZ_READ_LE32(pSrc);
+
+ if ((pState->m_zip64) || (found_zip64_ext_data_in_ldir)) {
+ comp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32));
+ uncomp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32) +
+ sizeof(mz_uint64));
+ } else {
+ comp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32));
+ uncomp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32) +
+ sizeof(mz_uint32));
+ }
+
+ if ((file_crc32 != file_stat.m_crc32) ||
+ (comp_size != file_stat.m_comp_size) ||
+ (uncomp_size != file_stat.m_uncomp_size)) {
+ mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
+ goto handle_failure;
+ }
+ } else {
+ if ((local_header_crc32 != file_stat.m_crc32) ||
+ (local_header_comp_size != file_stat.m_comp_size) ||
+ (local_header_uncomp_size != file_stat.m_uncomp_size)) {
+ mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
+ goto handle_failure;
+ }
+ }
+
+ mz_zip_array_clear(pZip, &file_data_array);
+
+ if ((flags & MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY) == 0) {
+ if (!mz_zip_reader_extract_to_callback(
+ pZip, file_index, mz_zip_compute_crc32_callback,
+ &uncomp_crc32, 0))
+ return MZ_FALSE;
+
+ /* 1 more check to be sure, although the extract checks too. */
+ if (uncomp_crc32 != file_stat.m_crc32) {
+ mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
+ return MZ_FALSE;
+ }
+ }
+
+ return MZ_TRUE;
+
+handle_failure:
+ mz_zip_array_clear(pZip, &file_data_array);
+ return MZ_FALSE;
+}
+
+mz_bool mz_zip_validate_archive(mz_zip_archive *pZip, mz_uint flags) {
+ mz_zip_internal_state *pState;
+ mz_uint32 i;
+
+ if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) ||
+ (!pZip->m_pFree) || (!pZip->m_pRead))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pState = pZip->m_pState;
+
+ /* Basic sanity checks */
+ if (!pState->m_zip64) {
+ if (pZip->m_total_files > MZ_UINT16_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+
+ if (pZip->m_archive_size > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+ } else {
+ if (pState->m_central_dir.m_size >= MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+ }
+
+ for (i = 0; i < pZip->m_total_files; i++) {
+ if (MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG & flags) {
+ mz_uint32 found_index;
+ mz_zip_archive_file_stat stat;
+
+ if (!mz_zip_reader_file_stat(pZip, i, &stat))
+ return MZ_FALSE;
+
+ if (!mz_zip_reader_locate_file_v2(pZip, stat.m_filename, NULL,
+ 0, &found_index))
+ return MZ_FALSE;
+
+ /* This check can fail if there are duplicate filenames in the
+ * archive (which we don't check for when writing - that's up to
+ * the user) */
+ if (found_index != i)
+ return mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED);
+ }
+
+ if (!mz_zip_validate_file(pZip, i, flags))
+ return MZ_FALSE;
+ }
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_validate_mem_archive(const void *pMem, size_t size,
+ mz_uint flags,
+ mz_zip_error *pErr) {
+ mz_bool success = MZ_TRUE;
+ mz_zip_archive zip;
+ mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
+
+ if ((!pMem) || (!size)) {
+ if (pErr)
+ *pErr = MZ_ZIP_INVALID_PARAMETER;
+ return MZ_FALSE;
+ }
+
+ mz_zip_zero_struct(&zip);
+
+ if (!mz_zip_reader_init_mem(&zip, pMem, size, flags)) {
+ if (pErr)
+ *pErr = zip.m_last_error;
+ return MZ_FALSE;
+ }
+
+ if (!mz_zip_validate_archive(&zip, flags)) {
+ actual_err = zip.m_last_error;
+ success = MZ_FALSE;
+ }
+
+ if (!mz_zip_reader_end_internal(&zip, success)) {
+ if (!actual_err)
+ actual_err = zip.m_last_error;
+ success = MZ_FALSE;
+ }
+
+ if (pErr)
+ *pErr = actual_err;
+
+ return success;
+}
+
+# ifndef MINIZ_NO_STDIO
+mz_bool mz_zip_validate_file_archive(const char *pFilename,
+ mz_uint flags,
+ mz_zip_error *pErr) {
+ mz_bool success = MZ_TRUE;
+ mz_zip_archive zip;
+ mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
+
+ if (!pFilename) {
+ if (pErr)
+ *pErr = MZ_ZIP_INVALID_PARAMETER;
+ return MZ_FALSE;
+ }
+
+ mz_zip_zero_struct(&zip);
+
+ if (!mz_zip_reader_init_file_v2(&zip, pFilename, flags, 0, 0)) {
+ if (pErr)
+ *pErr = zip.m_last_error;
+ return MZ_FALSE;
+ }
+
+ if (!mz_zip_validate_archive(&zip, flags)) {
+ actual_err = zip.m_last_error;
+ success = MZ_FALSE;
+ }
+
+ if (!mz_zip_reader_end_internal(&zip, success)) {
+ if (!actual_err)
+ actual_err = zip.m_last_error;
+ success = MZ_FALSE;
+ }
+
+ if (pErr)
+ *pErr = actual_err;
+
+ return success;
+}
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+/* ------------------- .ZIP archive writing */
+
+# ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
+
+static MZ_FORCEINLINE void mz_write_le16(mz_uint8 *p, mz_uint16 v) {
+ p[0] = (mz_uint8) v;
+ p[1] = (mz_uint8) (v >> 8);
+}
+static MZ_FORCEINLINE void mz_write_le32(mz_uint8 *p, mz_uint32 v) {
+ p[0] = (mz_uint8) v;
+ p[1] = (mz_uint8) (v >> 8);
+ p[2] = (mz_uint8) (v >> 16);
+ p[3] = (mz_uint8) (v >> 24);
+}
+static MZ_FORCEINLINE void mz_write_le64(mz_uint8 *p, mz_uint64 v) {
+ mz_write_le32(p, (mz_uint32) v);
+ mz_write_le32(p + sizeof(mz_uint32), (mz_uint32) (v >> 32));
+}
+
+# define MZ_WRITE_LE16(p, v) \
+ mz_write_le16((mz_uint8 *) (p), (mz_uint16) (v))
+# define MZ_WRITE_LE32(p, v) \
+ mz_write_le32((mz_uint8 *) (p), (mz_uint32) (v))
+# define MZ_WRITE_LE64(p, v) \
+ mz_write_le64((mz_uint8 *) (p), (mz_uint64) (v))
+
+static size_t mz_zip_heap_write_func(void *pOpaque,
+ mz_uint64 file_ofs,
+ const void *pBuf, size_t n) {
+ mz_zip_archive *pZip = (mz_zip_archive *) pOpaque;
+ mz_zip_internal_state *pState = pZip->m_pState;
+ mz_uint64 new_size = MZ_MAX(file_ofs + n, pState->m_mem_size);
+
+ if (!n)
+ return 0;
+
+ /* An allocation this big is likely to just fail on 32-bit systems,
+ * so don't even go there. */
+ if ((sizeof(size_t) == sizeof(mz_uint32)) &&
+ (new_size > 0x7FFFFFFF)) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
+ return 0;
+ }
+
+ if (new_size > pState->m_mem_capacity) {
+ void *pNew_block;
+ size_t new_capacity = MZ_MAX(64, pState->m_mem_capacity);
+
+ while (new_capacity < new_size) new_capacity *= 2;
+
+ if (NULL == (pNew_block = pZip->m_pRealloc(pZip->m_pAlloc_opaque,
+ pState->m_pMem, 1,
+ new_capacity))) {
+ mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ return 0;
+ }
+
+ pState->m_pMem = pNew_block;
+ pState->m_mem_capacity = new_capacity;
+ }
+ memcpy((mz_uint8 *) pState->m_pMem + file_ofs, pBuf, n);
+ pState->m_mem_size = (size_t) new_size;
+ return n;
+}
+
+static mz_bool mz_zip_writer_end_internal(mz_zip_archive *pZip,
+ mz_bool set_last_error) {
+ mz_zip_internal_state *pState;
+ mz_bool status = MZ_TRUE;
+
+ if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) ||
+ (!pZip->m_pFree) ||
+ ((pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) &&
+ (pZip->m_zip_mode !=
+ MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED))) {
+ if (set_last_error)
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ return MZ_FALSE;
+ }
+
+ pState = pZip->m_pState;
+ pZip->m_pState = NULL;
+ mz_zip_array_clear(pZip, &pState->m_central_dir);
+ mz_zip_array_clear(pZip, &pState->m_central_dir_offsets);
+ mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets);
+
+# ifndef MINIZ_NO_STDIO
+ if (pState->m_pFile) {
+ if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE) {
+ if (MZ_FCLOSE(pState->m_pFile) == EOF) {
+ if (set_last_error)
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
+ status = MZ_FALSE;
+ }
+ }
+
+ pState->m_pFile = NULL;
+ }
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+ if ((pZip->m_pWrite == mz_zip_heap_write_func) &&
+ (pState->m_pMem)) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState->m_pMem);
+ pState->m_pMem = NULL;
+ }
+
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pState);
+ pZip->m_zip_mode = MZ_ZIP_MODE_INVALID;
+ return status;
+}
+
+mz_bool mz_zip_writer_init_v2(mz_zip_archive *pZip,
+ mz_uint64 existing_size,
+ mz_uint flags) {
+ mz_bool zip64 = (flags & MZ_ZIP_FLAG_WRITE_ZIP64) != 0;
+
+ if ((!pZip) || (pZip->m_pState) || (!pZip->m_pWrite) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) {
+ if (!pZip->m_pRead)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ }
+
+ if (pZip->m_file_offset_alignment) {
+ /* Ensure user specified file offset alignment is a power of 2. */
+ if (pZip->m_file_offset_alignment &
+ (pZip->m_file_offset_alignment - 1))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ }
+
+ if (!pZip->m_pAlloc)
+ pZip->m_pAlloc = miniz_def_alloc_func;
+ if (!pZip->m_pFree)
+ pZip->m_pFree = miniz_def_free_func;
+ if (!pZip->m_pRealloc)
+ pZip->m_pRealloc = miniz_def_realloc_func;
+
+ pZip->m_archive_size = existing_size;
+ pZip->m_central_directory_file_ofs = 0;
+ pZip->m_total_files = 0;
+
+ if (NULL ==
+ (pZip->m_pState = (mz_zip_internal_state *) pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state))))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state));
+
+ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir,
+ sizeof(mz_uint8));
+ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(
+ &pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32));
+ MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(
+ &pZip->m_pState->m_sorted_central_dir_offsets,
+ sizeof(mz_uint32));
+
+ pZip->m_pState->m_zip64 = zip64;
+ pZip->m_pState->m_zip64_has_extended_info_fields = zip64;
+
+ pZip->m_zip_type = MZ_ZIP_TYPE_USER;
+ pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_init(mz_zip_archive *pZip,
+ mz_uint64 existing_size) {
+ return mz_zip_writer_init_v2(pZip, existing_size, 0);
+}
+
+mz_bool mz_zip_writer_init_heap_v2(
+ mz_zip_archive *pZip, size_t size_to_reserve_at_beginning,
+ size_t initial_allocation_size, mz_uint flags) {
+ pZip->m_pWrite = mz_zip_heap_write_func;
+ pZip->m_pNeeds_keepalive = NULL;
+
+ if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
+ pZip->m_pRead = mz_zip_mem_read_func;
+
+ pZip->m_pIO_opaque = pZip;
+
+ if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning,
+ flags))
+ return MZ_FALSE;
+
+ pZip->m_zip_type = MZ_ZIP_TYPE_HEAP;
+
+ if (0 !=
+ (initial_allocation_size = MZ_MAX(
+ initial_allocation_size, size_to_reserve_at_beginning))) {
+ if (NULL ==
+ (pZip->m_pState->m_pMem = pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1, initial_allocation_size))) {
+ mz_zip_writer_end_internal(pZip, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+ pZip->m_pState->m_mem_capacity = initial_allocation_size;
+ }
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip,
+ size_t size_to_reserve_at_beginning,
+ size_t initial_allocation_size) {
+ return mz_zip_writer_init_heap_v2(
+ pZip, size_to_reserve_at_beginning, initial_allocation_size, 0);
+}
+
+# ifndef MINIZ_NO_STDIO
+static size_t mz_zip_file_write_func(void *pOpaque,
+ mz_uint64 file_ofs,
+ const void *pBuf, size_t n) {
+ mz_zip_archive *pZip = (mz_zip_archive *) pOpaque;
+ mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile);
+
+ file_ofs += pZip->m_pState->m_file_archive_start_ofs;
+
+ if (((mz_int64) file_ofs < 0) ||
+ (((cur_ofs != (mz_int64) file_ofs)) &&
+ (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64) file_ofs,
+ SEEK_SET)))) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED);
+ return 0;
+ }
+
+ return MZ_FWRITE(pBuf, 1, n, pZip->m_pState->m_pFile);
+}
+
+mz_bool mz_zip_writer_init_file(
+ mz_zip_archive *pZip, const char *pFilename,
+ mz_uint64 size_to_reserve_at_beginning) {
+ return mz_zip_writer_init_file_v2(pZip, pFilename,
+ size_to_reserve_at_beginning, 0);
+}
+
+mz_bool mz_zip_writer_init_file_v2(
+ mz_zip_archive *pZip, const char *pFilename,
+ mz_uint64 size_to_reserve_at_beginning, mz_uint flags) {
+ MZ_FILE *pFile;
+
+ pZip->m_pWrite = mz_zip_file_write_func;
+ pZip->m_pNeeds_keepalive = NULL;
+
+ if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
+ pZip->m_pRead = mz_zip_file_read_func;
+
+ pZip->m_pIO_opaque = pZip;
+
+ if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning,
+ flags))
+ return MZ_FALSE;
+
+ if (NULL ==
+ (pFile = MZ_FOPEN(pFilename,
+ (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
+ ? "w+b"
+ : "wb"))) {
+ mz_zip_writer_end(pZip);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
+ }
+
+ pZip->m_pState->m_pFile = pFile;
+ pZip->m_zip_type = MZ_ZIP_TYPE_FILE;
+
+ if (size_to_reserve_at_beginning) {
+ mz_uint64 cur_ofs = 0;
+ char buf[4096];
+
+ MZ_CLEAR_ARR(buf);
+
+ do {
+ size_t n = (size_t) MZ_MIN(sizeof(buf),
+ size_to_reserve_at_beginning);
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_ofs, buf, n) != n) {
+ mz_zip_writer_end(pZip);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+ cur_ofs += n;
+ size_to_reserve_at_beginning -= n;
+ } while (size_to_reserve_at_beginning);
+ }
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile,
+ mz_uint flags) {
+ pZip->m_pWrite = mz_zip_file_write_func;
+ pZip->m_pNeeds_keepalive = NULL;
+
+ if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING)
+ pZip->m_pRead = mz_zip_file_read_func;
+
+ pZip->m_pIO_opaque = pZip;
+
+ if (!mz_zip_writer_init_v2(pZip, 0, flags))
+ return MZ_FALSE;
+
+ pZip->m_pState->m_pFile = pFile;
+ pZip->m_pState->m_file_archive_start_ofs = MZ_FTELL64(
+ pZip->m_pState->m_pFile);
+ pZip->m_zip_type = MZ_ZIP_TYPE_CFILE;
+
+ return MZ_TRUE;
+}
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+mz_bool mz_zip_writer_init_from_reader_v2(mz_zip_archive *pZip,
+ const char *pFilename,
+ mz_uint flags) {
+ mz_zip_internal_state *pState;
+
+ if ((!pZip) || (!pZip->m_pState) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_READING))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (flags & MZ_ZIP_FLAG_WRITE_ZIP64) {
+ /* We don't support converting a non-zip64 file to zip64 - this
+ * seems like more trouble than it's worth. (What about the
+ * existing 32-bit data descriptors that could follow the
+ * compressed data?) */
+ if (!pZip->m_pState->m_zip64)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ }
+
+ /* No sense in trying to write to an archive that's already at the
+ * support max size */
+ if (pZip->m_pState->m_zip64) {
+ if (pZip->m_total_files == MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+ } else {
+ if (pZip->m_total_files == MZ_UINT16_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+
+ if ((pZip->m_archive_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
+ }
+
+ pState = pZip->m_pState;
+
+ if (pState->m_pFile) {
+# ifdef MINIZ_NO_STDIO
+ (void) pFilename;
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+# else
+ if (pZip->m_pIO_opaque != pZip)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE) {
+ if (!pFilename)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ /* Archive is being read from stdio and was originally opened
+ * only for reading. Try to reopen as writable. */
+ if (NULL == (pState->m_pFile = MZ_FREOPEN(pFilename, "r+b",
+ pState->m_pFile))) {
+ /* The mz_zip_archive is now in a bogus state because
+ * pState->m_pFile is NULL, so just close it. */
+ mz_zip_reader_end_internal(pZip, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
+ }
+ }
+
+ pZip->m_pWrite = mz_zip_file_write_func;
+ pZip->m_pNeeds_keepalive = NULL;
+# endif /* #ifdef MINIZ_NO_STDIO */
+ } else if (pState->m_pMem) {
+ /* Archive lives in a memory block. Assume it's from the heap that
+ * we can resize using the realloc callback. */
+ if (pZip->m_pIO_opaque != pZip)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pState->m_mem_capacity = pState->m_mem_size;
+ pZip->m_pWrite = mz_zip_heap_write_func;
+ pZip->m_pNeeds_keepalive = NULL;
+ }
+ /* Archive is being read via a user provided read function - make
+ sure the user has specified a write function too. */
+ else if (!pZip->m_pWrite)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ /* Start writing new files at the archive's current central
+ * directory location. */
+ /* TODO: We could add a flag that lets the user start writing
+ * immediately AFTER the existing central dir - this would be safer.
+ */
+ pZip->m_archive_size = pZip->m_central_directory_file_ofs;
+ pZip->m_central_directory_file_ofs = 0;
+
+ /* Clear the sorted central dir offsets, they aren't useful or
+ * maintained now. */
+ /* Even though we're now in write mode, files can still be extracted
+ * and verified, but file locates will be slow. */
+ /* TODO: We could easily maintain the sorted central directory
+ * offsets. */
+ mz_zip_array_clear(pZip,
+ &pZip->m_pState->m_sorted_central_dir_offsets);
+
+ pZip->m_zip_mode = MZ_ZIP_MODE_WRITING;
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip,
+ const char *pFilename) {
+ return mz_zip_writer_init_from_reader_v2(pZip, pFilename, 0);
+}
+
+/* TODO: pArchive_name is a terrible name here! */
+mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip,
+ const char *pArchive_name,
+ const void *pBuf, size_t buf_size,
+ mz_uint level_and_flags) {
+ return mz_zip_writer_add_mem_ex(pZip, pArchive_name, pBuf, buf_size,
+ NULL, 0, level_and_flags, 0, 0);
+}
+
+typedef struct {
+ mz_zip_archive *m_pZip;
+ mz_uint64 m_cur_archive_file_ofs;
+ mz_uint64 m_comp_size;
+} mz_zip_writer_add_state;
+
+static mz_bool mz_zip_writer_add_put_buf_callback(const void *pBuf,
+ int len,
+ void *pUser) {
+ mz_zip_writer_add_state *pState = (mz_zip_writer_add_state *) pUser;
+ if ((int) pState->m_pZip->m_pWrite(pState->m_pZip->m_pIO_opaque,
+ pState->m_cur_archive_file_ofs,
+ pBuf, len) != len)
+ return MZ_FALSE;
+
+ pState->m_cur_archive_file_ofs += len;
+ pState->m_comp_size += len;
+ return MZ_TRUE;
+}
+
+# define MZ_ZIP64_MAX_LOCAL_EXTRA_FIELD_SIZE \
+ (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 2)
+# define MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE \
+ (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 3)
+static mz_uint32 mz_zip_writer_create_zip64_extra_data(
+ mz_uint8 *pBuf, mz_uint64 *pUncomp_size, mz_uint64 *pComp_size,
+ mz_uint64 *pLocal_header_ofs) {
+ mz_uint8 *pDst = pBuf;
+ mz_uint32 field_size = 0;
+
+ MZ_WRITE_LE16(pDst + 0,
+ MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID);
+ MZ_WRITE_LE16(pDst + 2, 0);
+ pDst += sizeof(mz_uint16) * 2;
+
+ if (pUncomp_size) {
+ MZ_WRITE_LE64(pDst, *pUncomp_size);
+ pDst += sizeof(mz_uint64);
+ field_size += sizeof(mz_uint64);
+ }
+
+ if (pComp_size) {
+ MZ_WRITE_LE64(pDst, *pComp_size);
+ pDst += sizeof(mz_uint64);
+ field_size += sizeof(mz_uint64);
+ }
+
+ if (pLocal_header_ofs) {
+ MZ_WRITE_LE64(pDst, *pLocal_header_ofs);
+ pDst += sizeof(mz_uint64);
+ field_size += sizeof(mz_uint64);
+ }
+
+ MZ_WRITE_LE16(pBuf + 2, field_size);
+
+ return (mz_uint32) (pDst - pBuf);
+}
+
+static mz_bool mz_zip_writer_create_local_dir_header(
+ mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size,
+ mz_uint16 extra_size, mz_uint64 uncomp_size, mz_uint64 comp_size,
+ mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags,
+ mz_uint16 dos_time, mz_uint16 dos_date) {
+ (void) pZip;
+ memset(pDst, 0, MZ_ZIP_LOCAL_DIR_HEADER_SIZE);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_SIG_OFS,
+ MZ_ZIP_LOCAL_DIR_HEADER_SIG);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_VERSION_NEEDED_OFS,
+ method ? 20 : 0);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_BIT_FLAG_OFS, bit_flags);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_METHOD_OFS, method);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_TIME_OFS, dos_time);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_DATE_OFS, dos_date);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_CRC32_OFS, uncomp_crc32);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS,
+ MZ_MIN(comp_size, MZ_UINT32_MAX));
+ MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS,
+ MZ_MIN(uncomp_size, MZ_UINT32_MAX));
+ MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILENAME_LEN_OFS, filename_size);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_EXTRA_LEN_OFS, extra_size);
+ return MZ_TRUE;
+}
+
+static mz_bool mz_zip_writer_create_central_dir_header(
+ mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size,
+ mz_uint16 extra_size, mz_uint16 comment_size,
+ mz_uint64 uncomp_size, mz_uint64 comp_size,
+ mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags,
+ mz_uint16 dos_time, mz_uint16 dos_date,
+ mz_uint64 local_header_ofs, mz_uint32 ext_attributes) {
+ (void) pZip;
+ memset(pDst, 0, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_SIG_OFS,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIG);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_VERSION_NEEDED_OFS,
+ method ? 20 : 0);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_BIT_FLAG_OFS, bit_flags);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_METHOD_OFS, method);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_TIME_OFS, dos_time);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_DATE_OFS, dos_date);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_CRC32_OFS, uncomp_crc32);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS,
+ MZ_MIN(comp_size, MZ_UINT32_MAX));
+ MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS,
+ MZ_MIN(uncomp_size, MZ_UINT32_MAX));
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILENAME_LEN_OFS, filename_size);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_EXTRA_LEN_OFS, extra_size);
+ MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_COMMENT_LEN_OFS, comment_size);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, ext_attributes);
+ MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_LOCAL_HEADER_OFS,
+ MZ_MIN(local_header_ofs, MZ_UINT32_MAX));
+ return MZ_TRUE;
+}
+
+static mz_bool mz_zip_writer_add_to_central_dir(
+ mz_zip_archive *pZip, const char *pFilename,
+ mz_uint16 filename_size, const void *pExtra, mz_uint16 extra_size,
+ const void *pComment, mz_uint16 comment_size,
+ mz_uint64 uncomp_size, mz_uint64 comp_size,
+ mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags,
+ mz_uint16 dos_time, mz_uint16 dos_date,
+ mz_uint64 local_header_ofs, mz_uint32 ext_attributes,
+ const char *user_extra_data, mz_uint user_extra_data_len) {
+ mz_zip_internal_state *pState = pZip->m_pState;
+ mz_uint32 central_dir_ofs = (mz_uint32)
+ pState->m_central_dir.m_size;
+ size_t orig_central_dir_size = pState->m_central_dir.m_size;
+ mz_uint8 central_dir_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];
+
+ if (!pZip->m_pState->m_zip64) {
+ if (local_header_ofs > 0xFFFFFFFF)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE);
+ }
+
+ /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
+ if (((mz_uint64) pState->m_central_dir.m_size +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + extra_size +
+ user_extra_data_len + comment_size) >= MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
+
+ if (!mz_zip_writer_create_central_dir_header(
+ pZip, central_dir_header, filename_size,
+ (mz_uint16) (extra_size + user_extra_data_len),
+ comment_size, uncomp_size, comp_size, uncomp_crc32, method,
+ bit_flags, dos_time, dos_date, local_header_ofs,
+ ext_attributes))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ if ((!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ central_dir_header,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) ||
+ (!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ pFilename, filename_size)) ||
+ (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pExtra,
+ extra_size)) ||
+ (!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ user_extra_data,
+ user_extra_data_len)) ||
+ (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pComment,
+ comment_size)) ||
+ (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets,
+ &central_dir_ofs, 1))) {
+ /* Try to resize the central directory array back into its
+ * original state. */
+ mz_zip_array_resize(pZip, &pState->m_central_dir,
+ orig_central_dir_size, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ return MZ_TRUE;
+}
+
+static mz_bool mz_zip_writer_validate_archive_name(
+ const char *pArchive_name) {
+ /* Basic ZIP archive filename validity checks: Valid filenames
+ * cannot start with a forward slash, cannot contain a drive letter,
+ * and cannot use DOS-style backward slashes. */
+ if (*pArchive_name == '/')
+ return MZ_FALSE;
+
+ /* Making sure the name does not contain drive letters or DOS style
+ * backward slashes is the responsibility of the program using
+ * miniz*/
+
+ return MZ_TRUE;
+}
+
+static mz_uint
+mz_zip_writer_compute_padding_needed_for_file_alignment(
+ mz_zip_archive *pZip) {
+ mz_uint32 n;
+ if (!pZip->m_file_offset_alignment)
+ return 0;
+ n = (mz_uint32) (pZip->m_archive_size &
+ (pZip->m_file_offset_alignment - 1));
+ return (mz_uint) ((pZip->m_file_offset_alignment - n) &
+ (pZip->m_file_offset_alignment - 1));
+}
+
+static mz_bool mz_zip_writer_write_zeros(mz_zip_archive *pZip,
+ mz_uint64 cur_file_ofs,
+ mz_uint32 n) {
+ char buf[4096];
+ memset(buf, 0, MZ_MIN(sizeof(buf), n));
+ while (n) {
+ mz_uint32 s = MZ_MIN(sizeof(buf), n);
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_file_ofs, buf, s) != s)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_file_ofs += s;
+ n -= s;
+ }
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_add_mem_ex(
+ mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf,
+ size_t buf_size, const void *pComment, mz_uint16 comment_size,
+ mz_uint level_and_flags, mz_uint64 uncomp_size,
+ mz_uint32 uncomp_crc32) {
+ return mz_zip_writer_add_mem_ex_v2(
+ pZip, pArchive_name, pBuf, buf_size, pComment, comment_size,
+ level_and_flags, uncomp_size, uncomp_crc32, NULL, NULL, 0, NULL,
+ 0);
+}
+
+mz_bool mz_zip_writer_add_mem_ex_v2(
+ mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf,
+ size_t buf_size, const void *pComment, mz_uint16 comment_size,
+ mz_uint level_and_flags, mz_uint64 uncomp_size,
+ mz_uint32 uncomp_crc32, MZ_TIME_T *last_modified,
+ const char *user_extra_data, mz_uint user_extra_data_len,
+ const char *user_extra_data_central,
+ mz_uint user_extra_data_central_len) {
+ mz_uint16 method = 0, dos_time = 0, dos_date = 0;
+ mz_uint level, ext_attributes = 0, num_alignment_padding_bytes;
+ mz_uint64 local_dir_header_ofs = pZip->m_archive_size,
+ cur_archive_file_ofs = pZip->m_archive_size,
+ comp_size = 0;
+ size_t archive_name_size;
+ mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
+ tdefl_compressor *pComp = NULL;
+ mz_bool store_data_uncompressed;
+ mz_zip_internal_state *pState;
+ mz_uint8 *pExtra_data = NULL;
+ mz_uint32 extra_size = 0;
+ mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE];
+ mz_uint16 bit_flags = 0;
+
+ if ((int) level_and_flags < 0)
+ level_and_flags = MZ_DEFAULT_LEVEL;
+
+ if (uncomp_size ||
+ (buf_size && !(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)))
+ bit_flags |= MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR;
+
+ if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME))
+ bit_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8;
+
+ level = level_and_flags & 0xF;
+ store_data_uncompressed =
+ ((!level) || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA));
+
+ if ((!pZip) || (!pZip->m_pState) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) ||
+ ((buf_size) && (!pBuf)) || (!pArchive_name) ||
+ ((comment_size) && (!pComment)) ||
+ (level > MZ_UBER_COMPRESSION))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pState = pZip->m_pState;
+
+ if (pState->m_zip64) {
+ if (pZip->m_total_files == MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+ } else {
+ if (pZip->m_total_files == MZ_UINT16_MAX) {
+ pState->m_zip64 = MZ_TRUE;
+ /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */
+ }
+ if (((mz_uint64) buf_size > 0xFFFFFFFF) ||
+ (uncomp_size > 0xFFFFFFFF)) {
+ pState->m_zip64 = MZ_TRUE;
+ /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
+ }
+ }
+
+ if ((!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) &&
+ (uncomp_size))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (!mz_zip_writer_validate_archive_name(pArchive_name))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
+
+# ifndef MINIZ_NO_TIME
+ if (last_modified != NULL) {
+ mz_zip_time_t_to_dos_time(*last_modified, &dos_time, &dos_date);
+ } else {
+ MZ_TIME_T cur_time;
+ time(&cur_time);
+ mz_zip_time_t_to_dos_time(cur_time, &dos_time, &dos_date);
+ }
+# endif /* #ifndef MINIZ_NO_TIME */
+
+ if (!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) {
+ uncomp_crc32 = (mz_uint32) mz_crc32(
+ MZ_CRC32_INIT, (const mz_uint8 *) pBuf, buf_size);
+ uncomp_size = buf_size;
+ if (uncomp_size <= 3) {
+ level = 0;
+ store_data_uncompressed = MZ_TRUE;
+ }
+ }
+
+ archive_name_size = strlen(pArchive_name);
+ if (archive_name_size > MZ_UINT16_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
+
+ num_alignment_padding_bytes =
+ mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
+
+ /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
+ if (((mz_uint64) pState->m_central_dir.m_size +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size +
+ MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >=
+ MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
+
+ if (!pState->m_zip64) {
+ /* Bail early if the archive would obviously become too large */
+ if ((pZip->m_archive_size + num_alignment_padding_bytes +
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size +
+ comment_size + user_extra_data_len +
+ pState->m_central_dir.m_size +
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE +
+ user_extra_data_central_len +
+ MZ_ZIP_DATA_DESCRIPTER_SIZE32) > 0xFFFFFFFF) {
+ pState->m_zip64 = MZ_TRUE;
+ /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
+ }
+ }
+
+ if ((archive_name_size) &&
+ (pArchive_name[archive_name_size - 1] == '/')) {
+ /* Set DOS Subdirectory attribute bit. */
+ ext_attributes |= MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG;
+
+ /* Subdirectories cannot contain data. */
+ if ((buf_size) || (uncomp_size))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ }
+
+ /* Try to do any allocations before writing to the archive, so if an
+ * allocation fails the file remains unmodified. (A good idea if
+ * we're doing an in-place modification.) */
+ if ((!mz_zip_array_ensure_room(
+ pZip, &pState->m_central_dir,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size +
+ comment_size +
+ (pState->m_zip64 ? MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE
+ : 0))) ||
+ (!mz_zip_array_ensure_room(pZip, &pState->m_central_dir_offsets,
+ 1)))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ if ((!store_data_uncompressed) && (buf_size)) {
+ if (NULL ==
+ (pComp = (tdefl_compressor *) pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor))))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs,
+ num_alignment_padding_bytes)) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+ return MZ_FALSE;
+ }
+
+ local_dir_header_ofs += num_alignment_padding_bytes;
+ if (pZip->m_file_offset_alignment) {
+ MZ_ASSERT((local_dir_header_ofs &
+ (pZip->m_file_offset_alignment - 1)) == 0);
+ }
+ cur_archive_file_ofs += num_alignment_padding_bytes;
+
+ MZ_CLEAR_ARR(local_dir_header);
+
+ if (!store_data_uncompressed ||
+ (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) {
+ method = MZ_DEFLATED;
+ }
+
+ if (pState->m_zip64) {
+ if (uncomp_size >= MZ_UINT32_MAX ||
+ local_dir_header_ofs >= MZ_UINT32_MAX) {
+ pExtra_data = extra_data;
+ extra_size = mz_zip_writer_create_zip64_extra_data(
+ extra_data,
+ (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
+ (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL,
+ (local_dir_header_ofs >= MZ_UINT32_MAX)
+ ? &local_dir_header_ofs
+ : NULL);
+ }
+
+ if (!mz_zip_writer_create_local_dir_header(
+ pZip, local_dir_header, (mz_uint16) archive_name_size,
+ (mz_uint16) (extra_size + user_extra_data_len), 0, 0, 0,
+ method, bit_flags, dos_time, dos_date))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs,
+ local_dir_header, sizeof(local_dir_header)) !=
+ sizeof(local_dir_header))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += sizeof(local_dir_header);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ pArchive_name,
+ archive_name_size) != archive_name_size) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+ cur_archive_file_ofs += archive_name_size;
+
+ if (pExtra_data != NULL) {
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ extra_data, extra_size) != extra_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += extra_size;
+ }
+ } else {
+ if ((comp_size > MZ_UINT32_MAX) ||
+ (cur_archive_file_ofs > MZ_UINT32_MAX))
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+ if (!mz_zip_writer_create_local_dir_header(
+ pZip, local_dir_header, (mz_uint16) archive_name_size,
+ (mz_uint16) user_extra_data_len, 0, 0, 0, method,
+ bit_flags, dos_time, dos_date))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs,
+ local_dir_header, sizeof(local_dir_header)) !=
+ sizeof(local_dir_header))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += sizeof(local_dir_header);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ pArchive_name,
+ archive_name_size) != archive_name_size) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+ cur_archive_file_ofs += archive_name_size;
+ }
+
+ if (user_extra_data_len > 0) {
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ user_extra_data,
+ user_extra_data_len) != user_extra_data_len)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += user_extra_data_len;
+ }
+
+ if (store_data_uncompressed) {
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pBuf,
+ buf_size) != buf_size) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+
+ cur_archive_file_ofs += buf_size;
+ comp_size = buf_size;
+ } else if (buf_size) {
+ mz_zip_writer_add_state state;
+
+ state.m_pZip = pZip;
+ state.m_cur_archive_file_ofs = cur_archive_file_ofs;
+ state.m_comp_size = 0;
+
+ if ((tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state,
+ tdefl_create_comp_flags_from_zip_params(
+ level, -15, MZ_DEFAULT_STRATEGY)) !=
+ TDEFL_STATUS_OKAY) ||
+ (tdefl_compress_buffer(pComp, pBuf, buf_size, TDEFL_FINISH) !=
+ TDEFL_STATUS_DONE)) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+ return mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED);
+ }
+
+ comp_size = state.m_comp_size;
+ cur_archive_file_ofs = state.m_cur_archive_file_ofs;
+ }
+
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+ pComp = NULL;
+
+ if (uncomp_size) {
+ mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64];
+ mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32;
+
+ MZ_ASSERT(bit_flags & MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR);
+
+ MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID);
+ MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32);
+ if (pExtra_data == NULL) {
+ if (comp_size > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+
+ MZ_WRITE_LE32(local_dir_footer + 8, comp_size);
+ MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size);
+ } else {
+ MZ_WRITE_LE64(local_dir_footer + 8, comp_size);
+ MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size);
+ local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64;
+ }
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ local_dir_footer, local_dir_footer_size) !=
+ local_dir_footer_size)
+ return MZ_FALSE;
+
+ cur_archive_file_ofs += local_dir_footer_size;
+ }
+
+ if (pExtra_data != NULL) {
+ extra_size = mz_zip_writer_create_zip64_extra_data(
+ extra_data,
+ (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
+ (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL,
+ (local_dir_header_ofs >= MZ_UINT32_MAX)
+ ? &local_dir_header_ofs
+ : NULL);
+ }
+
+ if (!mz_zip_writer_add_to_central_dir(
+ pZip, pArchive_name, (mz_uint16) archive_name_size,
+ pExtra_data, (mz_uint16) extra_size, pComment, comment_size,
+ uncomp_size, comp_size, uncomp_crc32, method, bit_flags,
+ dos_time, dos_date, local_dir_header_ofs, ext_attributes,
+ user_extra_data_central, user_extra_data_central_len))
+ return MZ_FALSE;
+
+ pZip->m_total_files++;
+ pZip->m_archive_size = cur_archive_file_ofs;
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_add_read_buf_callback(
+ mz_zip_archive *pZip, const char *pArchive_name,
+ mz_file_read_func read_callback, void *callback_opaque,
+ mz_uint64 max_size, const MZ_TIME_T *pFile_time,
+ const void *pComment, mz_uint16 comment_size,
+ mz_uint level_and_flags, const char *user_extra_data,
+ mz_uint user_extra_data_len, const char *user_extra_data_central,
+ mz_uint user_extra_data_central_len) {
+ mz_uint16 gen_flags;
+ mz_uint uncomp_crc32 = MZ_CRC32_INIT, level,
+ num_alignment_padding_bytes;
+ mz_uint16 method = 0, dos_time = 0, dos_date = 0,
+ ext_attributes = 0;
+ mz_uint64 local_dir_header_ofs,
+ cur_archive_file_ofs = pZip->m_archive_size, uncomp_size = 0,
+ comp_size = 0;
+ size_t archive_name_size;
+ mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE];
+ mz_uint8 *pExtra_data = NULL;
+ mz_uint32 extra_size = 0;
+ mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE];
+ mz_zip_internal_state *pState;
+ mz_uint64 file_ofs = 0, cur_archive_header_file_ofs;
+
+ if ((int) level_and_flags < 0)
+ level_and_flags = MZ_DEFAULT_LEVEL;
+ level = level_and_flags & 0xF;
+
+ gen_flags = (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE)
+ ? 0
+ : MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR;
+
+ if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME))
+ gen_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8;
+
+ /* Sanity checks */
+ if ((!pZip) || (!pZip->m_pState) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pArchive_name) ||
+ ((comment_size) && (!pComment)) ||
+ (level > MZ_UBER_COMPRESSION))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pState = pZip->m_pState;
+
+ if ((!pState->m_zip64) && (max_size > MZ_UINT32_MAX)) {
+ /* Source file is too large for non-zip64 */
+ /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
+ pState->m_zip64 = MZ_TRUE;
+ }
+
+ /* We could support this, but why? */
+ if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (!mz_zip_writer_validate_archive_name(pArchive_name))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
+
+ if (pState->m_zip64) {
+ if (pZip->m_total_files == MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+ } else {
+ if (pZip->m_total_files == MZ_UINT16_MAX) {
+ pState->m_zip64 = MZ_TRUE;
+ /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */
+ }
+ }
+
+ archive_name_size = strlen(pArchive_name);
+ if (archive_name_size > MZ_UINT16_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME);
+
+ num_alignment_padding_bytes =
+ mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
+
+ /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */
+ if (((mz_uint64) pState->m_central_dir.m_size +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size +
+ MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >=
+ MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
+
+ if (!pState->m_zip64) {
+ /* Bail early if the archive would obviously become too large */
+ if ((pZip->m_archive_size + num_alignment_padding_bytes +
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size +
+ comment_size + user_extra_data_len +
+ pState->m_central_dir.m_size +
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 1024 +
+ MZ_ZIP_DATA_DESCRIPTER_SIZE32 +
+ user_extra_data_central_len) > 0xFFFFFFFF) {
+ pState->m_zip64 = MZ_TRUE;
+ /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */
+ }
+ }
+
+# ifndef MINIZ_NO_TIME
+ if (pFile_time) {
+ mz_zip_time_t_to_dos_time(*pFile_time, &dos_time, &dos_date);
+ }
+# endif
+
+ if (max_size <= 3)
+ level = 0;
+
+ if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs,
+ num_alignment_padding_bytes)) {
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+
+ cur_archive_file_ofs += num_alignment_padding_bytes;
+ local_dir_header_ofs = cur_archive_file_ofs;
+
+ if (pZip->m_file_offset_alignment) {
+ MZ_ASSERT((cur_archive_file_ofs &
+ (pZip->m_file_offset_alignment - 1)) == 0);
+ }
+
+ if (max_size && level) {
+ method = MZ_DEFLATED;
+ }
+
+ MZ_CLEAR_ARR(local_dir_header);
+ if (pState->m_zip64) {
+ if (max_size >= MZ_UINT32_MAX ||
+ local_dir_header_ofs >= MZ_UINT32_MAX) {
+ pExtra_data = extra_data;
+ if (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE)
+ extra_size = mz_zip_writer_create_zip64_extra_data(
+ extra_data,
+ (max_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
+ (max_size >= MZ_UINT32_MAX) ? &comp_size : NULL,
+ (local_dir_header_ofs >= MZ_UINT32_MAX)
+ ? &local_dir_header_ofs
+ : NULL);
+ else
+ extra_size = mz_zip_writer_create_zip64_extra_data(
+ extra_data, NULL, NULL,
+ (local_dir_header_ofs >= MZ_UINT32_MAX)
+ ? &local_dir_header_ofs
+ : NULL);
+ }
+
+ if (!mz_zip_writer_create_local_dir_header(
+ pZip, local_dir_header, (mz_uint16) archive_name_size,
+ (mz_uint16) (extra_size + user_extra_data_len), 0, 0, 0,
+ method, gen_flags, dos_time, dos_date))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ local_dir_header, sizeof(local_dir_header)) !=
+ sizeof(local_dir_header))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += sizeof(local_dir_header);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ pArchive_name,
+ archive_name_size) != archive_name_size) {
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+
+ cur_archive_file_ofs += archive_name_size;
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ extra_data, extra_size) != extra_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += extra_size;
+ } else {
+ if ((comp_size > MZ_UINT32_MAX) ||
+ (cur_archive_file_ofs > MZ_UINT32_MAX))
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+ if (!mz_zip_writer_create_local_dir_header(
+ pZip, local_dir_header, (mz_uint16) archive_name_size,
+ (mz_uint16) user_extra_data_len, 0, 0, 0, method,
+ gen_flags, dos_time, dos_date))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ local_dir_header, sizeof(local_dir_header)) !=
+ sizeof(local_dir_header))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += sizeof(local_dir_header);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ pArchive_name,
+ archive_name_size) != archive_name_size) {
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+
+ cur_archive_file_ofs += archive_name_size;
+ }
+
+ if (user_extra_data_len > 0) {
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ user_extra_data,
+ user_extra_data_len) != user_extra_data_len)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_file_ofs += user_extra_data_len;
+ }
+
+ if (max_size) {
+ void *pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1,
+ MZ_ZIP_MAX_IO_BUF_SIZE);
+ if (!pRead_buf) {
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if (!level) {
+ while (1) {
+ size_t n = read_callback(callback_opaque, file_ofs, pRead_buf,
+ MZ_ZIP_MAX_IO_BUF_SIZE);
+ if (n == 0)
+ break;
+
+ if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) ||
+ (file_ofs + n > max_size)) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ }
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ pRead_buf, n) != n) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+ file_ofs += n;
+ uncomp_crc32 = (mz_uint32) mz_crc32(
+ uncomp_crc32, (const mz_uint8 *) pRead_buf, n);
+ cur_archive_file_ofs += n;
+ }
+ uncomp_size = file_ofs;
+ comp_size = uncomp_size;
+ } else {
+ mz_bool result = MZ_FALSE;
+ mz_zip_writer_add_state state;
+ tdefl_compressor *pComp = (tdefl_compressor *) pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor));
+ if (!pComp) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ state.m_pZip = pZip;
+ state.m_cur_archive_file_ofs = cur_archive_file_ofs;
+ state.m_comp_size = 0;
+
+ if (tdefl_init(pComp, mz_zip_writer_add_put_buf_callback,
+ &state,
+ tdefl_create_comp_flags_from_zip_params(
+ level, -15, MZ_DEFAULT_STRATEGY)) !=
+ TDEFL_STATUS_OKAY) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+ }
+
+ for (;;) {
+ tdefl_status status;
+ tdefl_flush flush = TDEFL_NO_FLUSH;
+
+ size_t n = read_callback(callback_opaque, file_ofs, pRead_buf,
+ MZ_ZIP_MAX_IO_BUF_SIZE);
+ if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) ||
+ (file_ofs + n > max_size)) {
+ mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ break;
+ }
+
+ file_ofs += n;
+ uncomp_crc32 = (mz_uint32) mz_crc32(
+ uncomp_crc32, (const mz_uint8 *) pRead_buf, n);
+
+ if (pZip->m_pNeeds_keepalive != NULL &&
+ pZip->m_pNeeds_keepalive(pZip->m_pIO_opaque))
+ flush = TDEFL_FULL_FLUSH;
+
+ if (n == 0)
+ flush = TDEFL_FINISH;
+
+ status = tdefl_compress_buffer(pComp, pRead_buf, n, flush);
+ if (status == TDEFL_STATUS_DONE) {
+ result = MZ_TRUE;
+ break;
+ } else if (status != TDEFL_STATUS_OKAY) {
+ mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED);
+ break;
+ }
+ }
+
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pComp);
+
+ if (!result) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+ return MZ_FALSE;
+ }
+
+ uncomp_size = file_ofs;
+ comp_size = state.m_comp_size;
+ cur_archive_file_ofs = state.m_cur_archive_file_ofs;
+ }
+
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf);
+ }
+
+ if (!(level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE)) {
+ mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64];
+ mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32;
+
+ MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID);
+ MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32);
+ if (pExtra_data == NULL) {
+ if (comp_size > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+
+ MZ_WRITE_LE32(local_dir_footer + 8, comp_size);
+ MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size);
+ } else {
+ MZ_WRITE_LE64(local_dir_footer + 8, comp_size);
+ MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size);
+ local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64;
+ }
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs,
+ local_dir_footer, local_dir_footer_size) !=
+ local_dir_footer_size)
+ return MZ_FALSE;
+
+ cur_archive_file_ofs += local_dir_footer_size;
+ }
+
+ if (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE) {
+ if (pExtra_data != NULL) {
+ extra_size = mz_zip_writer_create_zip64_extra_data(
+ extra_data,
+ (max_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
+ (max_size >= MZ_UINT32_MAX) ? &comp_size : NULL,
+ (local_dir_header_ofs >= MZ_UINT32_MAX)
+ ? &local_dir_header_ofs
+ : NULL);
+ }
+
+ if (!mz_zip_writer_create_local_dir_header(
+ pZip, local_dir_header, (mz_uint16) archive_name_size,
+ (mz_uint16) (extra_size + user_extra_data_len),
+ (max_size >= MZ_UINT32_MAX) ? MZ_UINT32_MAX : uncomp_size,
+ (max_size >= MZ_UINT32_MAX) ? MZ_UINT32_MAX : comp_size,
+ uncomp_crc32, method, gen_flags, dos_time, dos_date))
+ return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR);
+
+ cur_archive_header_file_ofs = local_dir_header_ofs;
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque,
+ cur_archive_header_file_ofs, local_dir_header,
+ sizeof(local_dir_header)) !=
+ sizeof(local_dir_header))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ if (pExtra_data != NULL) {
+ cur_archive_header_file_ofs += sizeof(local_dir_header);
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque,
+ cur_archive_header_file_ofs, pArchive_name,
+ archive_name_size) != archive_name_size) {
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+
+ cur_archive_header_file_ofs += archive_name_size;
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque,
+ cur_archive_header_file_ofs, extra_data,
+ extra_size) != extra_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_archive_header_file_ofs += extra_size;
+ }
+ }
+
+ if (pExtra_data != NULL) {
+ extra_size = mz_zip_writer_create_zip64_extra_data(
+ extra_data,
+ (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL,
+ (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL,
+ (local_dir_header_ofs >= MZ_UINT32_MAX)
+ ? &local_dir_header_ofs
+ : NULL);
+ }
+
+ if (!mz_zip_writer_add_to_central_dir(
+ pZip, pArchive_name, (mz_uint16) archive_name_size,
+ pExtra_data, (mz_uint16) extra_size, pComment, comment_size,
+ uncomp_size, comp_size, uncomp_crc32, method, gen_flags,
+ dos_time, dos_date, local_dir_header_ofs, ext_attributes,
+ user_extra_data_central, user_extra_data_central_len))
+ return MZ_FALSE;
+
+ pZip->m_total_files++;
+ pZip->m_archive_size = cur_archive_file_ofs;
+
+ return MZ_TRUE;
+}
+
+# ifndef MINIZ_NO_STDIO
+
+static size_t mz_file_read_func_stdio(void *pOpaque,
+ mz_uint64 file_ofs, void *pBuf,
+ size_t n) {
+ MZ_FILE *pSrc_file = (MZ_FILE *) pOpaque;
+ mz_int64 cur_ofs = MZ_FTELL64(pSrc_file);
+
+ if (((mz_int64) file_ofs < 0) ||
+ (((cur_ofs != (mz_int64) file_ofs)) &&
+ (MZ_FSEEK64(pSrc_file, (mz_int64) file_ofs, SEEK_SET))))
+ return 0;
+
+ return MZ_FREAD(pBuf, 1, n, pSrc_file);
+}
+
+mz_bool mz_zip_writer_add_cfile(
+ mz_zip_archive *pZip, const char *pArchive_name,
+ MZ_FILE *pSrc_file, mz_uint64 max_size,
+ const MZ_TIME_T *pFile_time, const void *pComment,
+ mz_uint16 comment_size, mz_uint level_and_flags,
+ const char *user_extra_data, mz_uint user_extra_data_len,
+ const char *user_extra_data_central,
+ mz_uint user_extra_data_central_len) {
+ return mz_zip_writer_add_read_buf_callback(
+ pZip, pArchive_name, mz_file_read_func_stdio, pSrc_file,
+ max_size, pFile_time, pComment, comment_size, level_and_flags,
+ user_extra_data, user_extra_data_len, user_extra_data_central,
+ user_extra_data_central_len);
+}
+
+mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip,
+ const char *pArchive_name,
+ const char *pSrc_filename,
+ const void *pComment,
+ mz_uint16 comment_size,
+ mz_uint level_and_flags) {
+ MZ_FILE *pSrc_file = NULL;
+ mz_uint64 uncomp_size = 0;
+ MZ_TIME_T file_modified_time;
+ MZ_TIME_T *pFile_time = NULL;
+ mz_bool status;
+
+ memset(&file_modified_time, 0, sizeof(file_modified_time));
+
+# if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO)
+ pFile_time = &file_modified_time;
+ if (!mz_zip_get_file_modified_time(pSrc_filename,
+ &file_modified_time))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_STAT_FAILED);
+# endif
+
+ pSrc_file = MZ_FOPEN(pSrc_filename, "rb");
+ if (!pSrc_file)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED);
+
+ MZ_FSEEK64(pSrc_file, 0, SEEK_END);
+ uncomp_size = MZ_FTELL64(pSrc_file);
+ MZ_FSEEK64(pSrc_file, 0, SEEK_SET);
+
+ status = mz_zip_writer_add_cfile(
+ pZip, pArchive_name, pSrc_file, uncomp_size, pFile_time,
+ pComment, comment_size, level_and_flags, NULL, 0, NULL, 0);
+
+ MZ_FCLOSE(pSrc_file);
+
+ return status;
+}
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+static mz_bool mz_zip_writer_update_zip64_extension_block(
+ mz_zip_array *pNew_ext, mz_zip_archive *pZip,
+ const mz_uint8 *pExt, mz_uint32 ext_len, mz_uint64 *pComp_size,
+ mz_uint64 *pUncomp_size, mz_uint64 *pLocal_header_ofs,
+ mz_uint32 *pDisk_start) {
+ /* + 64 should be enough for any new zip64 data */
+ if (!mz_zip_array_reserve(pZip, pNew_ext, ext_len + 64, MZ_FALSE))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ mz_zip_array_resize(pZip, pNew_ext, 0, MZ_FALSE);
+
+ if ((pUncomp_size) || (pComp_size) || (pLocal_header_ofs) ||
+ (pDisk_start)) {
+ mz_uint8 new_ext_block[64];
+ mz_uint8 *pDst = new_ext_block;
+ mz_write_le16(pDst,
+ MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID);
+ mz_write_le16(pDst + sizeof(mz_uint16), 0);
+ pDst += sizeof(mz_uint16) * 2;
+
+ if (pUncomp_size) {
+ mz_write_le64(pDst, *pUncomp_size);
+ pDst += sizeof(mz_uint64);
+ }
+
+ if (pComp_size) {
+ mz_write_le64(pDst, *pComp_size);
+ pDst += sizeof(mz_uint64);
+ }
+
+ if (pLocal_header_ofs) {
+ mz_write_le64(pDst, *pLocal_header_ofs);
+ pDst += sizeof(mz_uint64);
+ }
+
+ if (pDisk_start) {
+ mz_write_le32(pDst, *pDisk_start);
+ pDst += sizeof(mz_uint32);
+ }
+
+ mz_write_le16(
+ new_ext_block + sizeof(mz_uint16),
+ (mz_uint16) ((pDst - new_ext_block) - sizeof(mz_uint16) * 2));
+
+ if (!mz_zip_array_push_back(pZip, pNew_ext, new_ext_block,
+ pDst - new_ext_block))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if ((pExt) && (ext_len)) {
+ mz_uint32 extra_size_remaining = ext_len;
+ const mz_uint8 *pExtra_data = pExt;
+
+ do {
+ mz_uint32 field_id, field_data_size, field_total_size;
+
+ if (extra_size_remaining < (sizeof(mz_uint16) * 2))
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ field_id = MZ_READ_LE16(pExtra_data);
+ field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
+ field_total_size = field_data_size + sizeof(mz_uint16) * 2;
+
+ if (field_total_size > extra_size_remaining)
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ if (field_id != MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) {
+ if (!mz_zip_array_push_back(pZip, pNew_ext, pExtra_data,
+ field_total_size))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ pExtra_data += field_total_size;
+ extra_size_remaining -= field_total_size;
+ } while (extra_size_remaining);
+ }
+
+ return MZ_TRUE;
+}
+
+/* TODO: This func is now pretty freakin complex due to zip64, split
+ * it up? */
+mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip,
+ mz_zip_archive *pSource_zip,
+ mz_uint src_file_index) {
+ mz_uint n, bit_flags, num_alignment_padding_bytes,
+ src_central_dir_following_data_size;
+ mz_uint64 src_archive_bytes_remaining, local_dir_header_ofs;
+ mz_uint64 cur_src_file_ofs, cur_dst_file_ofs;
+ mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ sizeof(mz_uint32) - 1) /
+ sizeof(mz_uint32)];
+ mz_uint8 *pLocal_header = (mz_uint8 *) local_header_u32;
+ mz_uint8 new_central_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE];
+ size_t orig_central_dir_size;
+ mz_zip_internal_state *pState;
+ void *pBuf;
+ const mz_uint8 *pSrc_central_header;
+ mz_zip_archive_file_stat src_file_stat;
+ mz_uint32 src_filename_len, src_comment_len, src_ext_len;
+ mz_uint32 local_header_filename_size, local_header_extra_len;
+ mz_uint64 local_header_comp_size, local_header_uncomp_size;
+ mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE;
+
+ /* Sanity checks */
+ if ((!pZip) || (!pZip->m_pState) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) ||
+ (!pSource_zip->m_pRead))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pState = pZip->m_pState;
+
+ /* Don't support copying files from zip64 archives to non-zip64,
+ * even though in some cases this is possible */
+ if ((pSource_zip->m_pState->m_zip64) && (!pZip->m_pState->m_zip64))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ /* Get pointer to the source central dir header and crack it */
+ if (NULL == (pSrc_central_header = mz_zip_get_cdh(pSource_zip,
+ src_file_index)))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_SIG_OFS) !=
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIG)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ src_filename_len = MZ_READ_LE16(pSrc_central_header +
+ MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ src_comment_len = MZ_READ_LE16(pSrc_central_header +
+ MZ_ZIP_CDH_COMMENT_LEN_OFS);
+ src_ext_len = MZ_READ_LE16(pSrc_central_header +
+ MZ_ZIP_CDH_EXTRA_LEN_OFS);
+ src_central_dir_following_data_size = src_filename_len +
+ src_ext_len + src_comment_len;
+
+ /* TODO: We don't support central dir's >= MZ_UINT32_MAX bytes right
+ * now (+32 fudge factor in case we need to add more extra data) */
+ if ((pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ src_central_dir_following_data_size + 32) >= MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
+
+ num_alignment_padding_bytes =
+ mz_zip_writer_compute_padding_needed_for_file_alignment(pZip);
+
+ if (!pState->m_zip64) {
+ if (pZip->m_total_files == MZ_UINT16_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+ } else {
+ /* TODO: Our zip64 support still has some 32-bit limits that may
+ * not be worth fixing. */
+ if (pZip->m_total_files == MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+ }
+
+ if (!mz_zip_file_stat_internal(pSource_zip, src_file_index,
+ pSrc_central_header, &src_file_stat,
+ NULL))
+ return MZ_FALSE;
+
+ cur_src_file_ofs = src_file_stat.m_local_header_ofs;
+ cur_dst_file_ofs = pZip->m_archive_size;
+
+ /* Read the source archive's local dir header */
+ if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque,
+ cur_src_file_ofs, pLocal_header,
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+
+ if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+
+ cur_src_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;
+
+ /* Compute the total size we need to copy (filename+extra
+ * data+compressed data) */
+ local_header_filename_size = MZ_READ_LE16(
+ pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS);
+ local_header_extra_len = MZ_READ_LE16(pLocal_header +
+ MZ_ZIP_LDH_EXTRA_LEN_OFS);
+ local_header_comp_size = MZ_READ_LE32(
+ pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS);
+ local_header_uncomp_size = MZ_READ_LE32(
+ pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS);
+ src_archive_bytes_remaining = src_file_stat.m_comp_size +
+ local_header_filename_size +
+ local_header_extra_len;
+
+ /* Try to find a zip64 extended information field */
+ if ((local_header_extra_len) &&
+ ((local_header_comp_size == MZ_UINT32_MAX) ||
+ (local_header_uncomp_size == MZ_UINT32_MAX))) {
+ mz_zip_array file_data_array;
+ const mz_uint8 *pExtra_data;
+ mz_uint32 extra_size_remaining = local_header_extra_len;
+
+ mz_zip_array_init(&file_data_array, 1);
+ if (!mz_zip_array_resize(pZip, &file_data_array,
+ local_header_extra_len, MZ_FALSE)) {
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque,
+ src_file_stat.m_local_header_ofs +
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE +
+ local_header_filename_size,
+ file_data_array.m_p,
+ local_header_extra_len) !=
+ local_header_extra_len) {
+ mz_zip_array_clear(pZip, &file_data_array);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ }
+
+ pExtra_data = (const mz_uint8 *) file_data_array.m_p;
+
+ do {
+ mz_uint32 field_id, field_data_size, field_total_size;
+
+ if (extra_size_remaining < (sizeof(mz_uint16) * 2)) {
+ mz_zip_array_clear(pZip, &file_data_array);
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ }
+
+ field_id = MZ_READ_LE16(pExtra_data);
+ field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16));
+ field_total_size = field_data_size + sizeof(mz_uint16) * 2;
+
+ if (field_total_size > extra_size_remaining) {
+ mz_zip_array_clear(pZip, &file_data_array);
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ }
+
+ if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) {
+ const mz_uint8 *pSrc_field_data = pExtra_data +
+ sizeof(mz_uint32);
+
+ if (field_data_size < sizeof(mz_uint64) * 2) {
+ mz_zip_array_clear(pZip, &file_data_array);
+ return mz_zip_set_error(pZip,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED);
+ }
+
+ local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data);
+ local_header_comp_size = MZ_READ_LE64(
+ pSrc_field_data +
+ sizeof(mz_uint64)); /* may be 0 if there's a descriptor */
+
+ found_zip64_ext_data_in_ldir = MZ_TRUE;
+ break;
+ }
+
+ pExtra_data += field_total_size;
+ extra_size_remaining -= field_total_size;
+ } while (extra_size_remaining);
+
+ mz_zip_array_clear(pZip, &file_data_array);
+ }
+
+ if (!pState->m_zip64) {
+ /* Try to detect if the new archive will most likely wind up too
+ * big and bail early (+(sizeof(mz_uint32) * 4) is for the
+ * optional descriptor which could be present, +64 is a fudge
+ * factor). */
+ /* We also check when the archive is finalized so this doesn't
+ * need to be perfect. */
+ mz_uint64 approx_new_archive_size =
+ cur_dst_file_ofs + num_alignment_padding_bytes +
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE + src_archive_bytes_remaining +
+ (sizeof(mz_uint32) * 4) + pState->m_central_dir.m_size +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ src_central_dir_following_data_size +
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 64;
+
+ if (approx_new_archive_size >= MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+ }
+
+ /* Write dest archive padding */
+ if (!mz_zip_writer_write_zeros(pZip, cur_dst_file_ofs,
+ num_alignment_padding_bytes))
+ return MZ_FALSE;
+
+ cur_dst_file_ofs += num_alignment_padding_bytes;
+
+ local_dir_header_ofs = cur_dst_file_ofs;
+ if (pZip->m_file_offset_alignment) {
+ MZ_ASSERT((local_dir_header_ofs &
+ (pZip->m_file_offset_alignment - 1)) == 0);
+ }
+
+ /* The original zip's local header+ext block doesn't change, even
+ * with zip64, so we can just copy it over to the dest zip */
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs,
+ pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_LOCAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ cur_dst_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE;
+
+ /* Copy over the source archive bytes to the dest archive, also
+ * ensure we have enough buf space to handle optional data
+ * descriptor */
+ if (NULL == (pBuf = pZip->m_pAlloc(
+ pZip->m_pAlloc_opaque, 1,
+ (size_t) MZ_MAX(
+ 32U, MZ_MIN((mz_uint64) MZ_ZIP_MAX_IO_BUF_SIZE,
+ src_archive_bytes_remaining)))))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ while (src_archive_bytes_remaining) {
+ n = (mz_uint) MZ_MIN((mz_uint64) MZ_ZIP_MAX_IO_BUF_SIZE,
+ src_archive_bytes_remaining);
+ if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque,
+ cur_src_file_ofs, pBuf, n) != n) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ }
+ cur_src_file_ofs += n;
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf,
+ n) != n) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+ cur_dst_file_ofs += n;
+
+ src_archive_bytes_remaining -= n;
+ }
+
+ /* Now deal with the optional data descriptor */
+ bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS);
+ if (bit_flags & 8) {
+ /* Copy data descriptor */
+ if ((pSource_zip->m_pState->m_zip64) ||
+ (found_zip64_ext_data_in_ldir)) {
+ /* src is zip64, dest must be zip64 */
+
+ /* name uint32_t's */
+ /* id 1 (optional in zip64?) */
+ /* crc 1 */
+ /* comp_size 2 */
+ /* uncomp_size 2 */
+ if (pSource_zip->m_pRead(
+ pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf,
+ (sizeof(mz_uint32) * 6)) != (sizeof(mz_uint32) * 6)) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ }
+
+ n = sizeof(mz_uint32) *
+ ((MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID) ? 6 : 5);
+ } else {
+ /* src is NOT zip64 */
+ mz_bool has_id;
+
+ if (pSource_zip->m_pRead(
+ pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf,
+ sizeof(mz_uint32) * 4) != sizeof(mz_uint32) * 4) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED);
+ }
+
+ has_id = (MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID);
+
+ if (pZip->m_pState->m_zip64) {
+ /* dest is zip64, so upgrade the data descriptor */
+ const mz_uint8 *pSrc_descriptor = (const mz_uint8 *) pBuf +
+ (has_id ? sizeof(mz_uint32)
+ : 0);
+ const mz_uint32 src_crc32 = MZ_READ_LE32(pSrc_descriptor);
+ const mz_uint64 src_comp_size = MZ_READ_LE32(
+ pSrc_descriptor + sizeof(mz_uint32));
+ const mz_uint64 src_uncomp_size = MZ_READ_LE32(
+ pSrc_descriptor + 2 * sizeof(mz_uint32));
+
+ mz_write_le32((mz_uint8 *) pBuf, MZ_ZIP_DATA_DESCRIPTOR_ID);
+ mz_write_le32((mz_uint8 *) pBuf + sizeof(mz_uint32) * 1,
+ src_crc32);
+ mz_write_le64((mz_uint8 *) pBuf + sizeof(mz_uint32) * 2,
+ src_comp_size);
+ mz_write_le64((mz_uint8 *) pBuf + sizeof(mz_uint32) * 4,
+ src_uncomp_size);
+
+ n = sizeof(mz_uint32) * 6;
+ } else {
+ /* dest is NOT zip64, just copy it as-is */
+ n = sizeof(mz_uint32) * (has_id ? 4 : 3);
+ }
+ }
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf,
+ n) != n) {
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+ }
+
+ cur_src_file_ofs += n;
+ cur_dst_file_ofs += n;
+ }
+ pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf);
+
+ /* Finally, add the new central dir header */
+ orig_central_dir_size = pState->m_central_dir.m_size;
+
+ memcpy(new_central_header, pSrc_central_header,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE);
+
+ if (pState->m_zip64) {
+ /* This is the painful part: We need to write a new central dir
+ * header + ext block with updated zip64 fields, and ensure the
+ * old fields (if any) are not included. */
+ const mz_uint8 *pSrc_ext = pSrc_central_header +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ src_filename_len;
+ mz_zip_array new_ext_block;
+
+ mz_zip_array_init(&new_ext_block, sizeof(mz_uint8));
+
+ MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS,
+ MZ_UINT32_MAX);
+ MZ_WRITE_LE32(new_central_header +
+ MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS,
+ MZ_UINT32_MAX);
+ MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS,
+ MZ_UINT32_MAX);
+
+ if (!mz_zip_writer_update_zip64_extension_block(
+ &new_ext_block, pZip, pSrc_ext, src_ext_len,
+ &src_file_stat.m_comp_size, &src_file_stat.m_uncomp_size,
+ &local_dir_header_ofs, NULL)) {
+ mz_zip_array_clear(pZip, &new_ext_block);
+ return MZ_FALSE;
+ }
+
+ MZ_WRITE_LE16(new_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS,
+ new_ext_block.m_size);
+
+ if (!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ new_central_header,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) {
+ mz_zip_array_clear(pZip, &new_ext_block);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if (!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ pSrc_central_header +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE,
+ src_filename_len)) {
+ mz_zip_array_clear(pZip, &new_ext_block);
+ mz_zip_array_resize(pZip, &pState->m_central_dir,
+ orig_central_dir_size, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if (!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ new_ext_block.m_p,
+ new_ext_block.m_size)) {
+ mz_zip_array_clear(pZip, &new_ext_block);
+ mz_zip_array_resize(pZip, &pState->m_central_dir,
+ orig_central_dir_size, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ if (!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ pSrc_central_header +
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE +
+ src_filename_len + src_ext_len,
+ src_comment_len)) {
+ mz_zip_array_clear(pZip, &new_ext_block);
+ mz_zip_array_resize(pZip, &pState->m_central_dir,
+ orig_central_dir_size, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ mz_zip_array_clear(pZip, &new_ext_block);
+ } else {
+ /* sanity checks */
+ if (cur_dst_file_ofs > MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+
+ if (local_dir_header_ofs >= MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE);
+
+ MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS,
+ local_dir_header_ofs);
+
+ if (!mz_zip_array_push_back(pZip, &pState->m_central_dir,
+ new_central_header,
+ MZ_ZIP_CENTRAL_DIR_HEADER_SIZE))
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+
+ if (!mz_zip_array_push_back(
+ pZip, &pState->m_central_dir,
+ pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE,
+ src_central_dir_following_data_size)) {
+ mz_zip_array_resize(pZip, &pState->m_central_dir,
+ orig_central_dir_size, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+ }
+
+ /* This shouldn't trigger unless we screwed up during the initial
+ * sanity checks */
+ if (pState->m_central_dir.m_size >= MZ_UINT32_MAX) {
+ /* TODO: Support central dirs >= 32-bits in size */
+ mz_zip_array_resize(pZip, &pState->m_central_dir,
+ orig_central_dir_size, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE);
+ }
+
+ n = (mz_uint32) orig_central_dir_size;
+ if (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets,
+ &n, 1)) {
+ mz_zip_array_resize(pZip, &pState->m_central_dir,
+ orig_central_dir_size, MZ_FALSE);
+ return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED);
+ }
+
+ pZip->m_total_files++;
+ pZip->m_archive_size = cur_dst_file_ofs;
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip) {
+ mz_zip_internal_state *pState;
+ mz_uint64 central_dir_ofs, central_dir_size;
+ mz_uint8 hdr[256];
+
+ if ((!pZip) || (!pZip->m_pState) ||
+ (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ pState = pZip->m_pState;
+
+ if (pState->m_zip64) {
+ if ((mz_uint64) pState->m_central_dir.m_size >= MZ_UINT32_MAX)
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+ } else {
+ if ((pZip->m_total_files > MZ_UINT16_MAX) ||
+ ((pZip->m_archive_size + pState->m_central_dir.m_size +
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX))
+ return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES);
+ }
+
+ central_dir_ofs = 0;
+ central_dir_size = 0;
+ if (pZip->m_total_files) {
+ /* Write central directory */
+ central_dir_ofs = pZip->m_archive_size;
+ central_dir_size = pState->m_central_dir.m_size;
+ pZip->m_central_directory_file_ofs = central_dir_ofs;
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, central_dir_ofs,
+ pState->m_central_dir.m_p,
+ (size_t) central_dir_size) != central_dir_size)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ pZip->m_archive_size += central_dir_size;
+ }
+
+ if (pState->m_zip64) {
+ /* Write zip64 end of central directory header */
+ mz_uint64 rel_ofs_to_zip64_ecdr = pZip->m_archive_size;
+
+ MZ_CLEAR_ARR(hdr);
+ MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDH_SIG_OFS,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG);
+ MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE -
+ sizeof(mz_uint32) - sizeof(mz_uint64));
+ MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS,
+ 0x031E); /* TODO: always Unix */
+ MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_NEEDED_OFS, 0x002D);
+ MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS,
+ pZip->m_total_files);
+ MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS,
+ pZip->m_total_files);
+ MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_SIZE_OFS,
+ central_dir_size);
+ MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_OFS_OFS, central_dir_ofs);
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE;
+
+ /* Write zip64 end of central directory locator */
+ MZ_CLEAR_ARR(hdr);
+ MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_SIG_OFS,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG);
+ MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS,
+ rel_ofs_to_zip64_ecdr);
+ MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS, 1);
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr,
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) !=
+ MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+ pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE;
+ }
+
+ /* Write end of central directory record */
+ MZ_CLEAR_ARR(hdr);
+ MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_SIG_OFS,
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG);
+ MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS,
+ MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files));
+ MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS,
+ MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files));
+ MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_SIZE_OFS,
+ MZ_MIN(MZ_UINT32_MAX, central_dir_size));
+ MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_OFS_OFS,
+ MZ_MIN(MZ_UINT32_MAX, central_dir_ofs));
+
+ if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr,
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) !=
+ MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE)
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED);
+
+# ifndef MINIZ_NO_STDIO
+ if ((pState->m_pFile) && (MZ_FFLUSH(pState->m_pFile) == EOF))
+ return mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED);
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+ pZip->m_archive_size += MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE;
+
+ pZip->m_zip_mode = MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED;
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip,
+ void **ppBuf,
+ size_t *pSize) {
+ if ((!ppBuf) || (!pSize))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ *ppBuf = NULL;
+ *pSize = 0;
+
+ if ((!pZip) || (!pZip->m_pState))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (pZip->m_pWrite != mz_zip_heap_write_func)
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ if (!mz_zip_writer_finalize_archive(pZip))
+ return MZ_FALSE;
+
+ *ppBuf = pZip->m_pState->m_pMem;
+ *pSize = pZip->m_pState->m_mem_size;
+ pZip->m_pState->m_pMem = NULL;
+ pZip->m_pState->m_mem_size = pZip->m_pState->m_mem_capacity = 0;
+
+ return MZ_TRUE;
+}
+
+mz_bool mz_zip_writer_end(mz_zip_archive *pZip) {
+ return mz_zip_writer_end_internal(pZip, MZ_TRUE);
+}
+
+# ifndef MINIZ_NO_STDIO
+mz_bool mz_zip_add_mem_to_archive_file_in_place(
+ const char *pZip_filename, const char *pArchive_name,
+ const void *pBuf, size_t buf_size, const void *pComment,
+ mz_uint16 comment_size, mz_uint level_and_flags) {
+ return mz_zip_add_mem_to_archive_file_in_place_v2(
+ pZip_filename, pArchive_name, pBuf, buf_size, pComment,
+ comment_size, level_and_flags, NULL);
+}
+
+mz_bool mz_zip_add_mem_to_archive_file_in_place_v2(
+ const char *pZip_filename, const char *pArchive_name,
+ const void *pBuf, size_t buf_size, const void *pComment,
+ mz_uint16 comment_size, mz_uint level_and_flags,
+ mz_zip_error *pErr) {
+ mz_bool status, created_new_archive = MZ_FALSE;
+ mz_zip_archive zip_archive;
+ struct MZ_FILE_STAT_STRUCT file_stat;
+ mz_zip_error actual_err = MZ_ZIP_NO_ERROR;
+
+ mz_zip_zero_struct(&zip_archive);
+ if ((int) level_and_flags < 0)
+ level_and_flags = MZ_DEFAULT_LEVEL;
+
+ if ((!pZip_filename) || (!pArchive_name) ||
+ ((buf_size) && (!pBuf)) || ((comment_size) && (!pComment)) ||
+ ((level_and_flags & 0xF) > MZ_UBER_COMPRESSION)) {
+ if (pErr)
+ *pErr = MZ_ZIP_INVALID_PARAMETER;
+ return MZ_FALSE;
+ }
+
+ if (!mz_zip_writer_validate_archive_name(pArchive_name)) {
+ if (pErr)
+ *pErr = MZ_ZIP_INVALID_FILENAME;
+ return MZ_FALSE;
+ }
+
+ /* Important: The regular non-64 bit version of stat() can fail here
+ * if the file is very large, which could cause the archive to be
+ * overwritten. */
+ /* So be sure to compile with _LARGEFILE64_SOURCE 1 */
+ if (MZ_FILE_STAT(pZip_filename, &file_stat) != 0) {
+ /* Create a new archive. */
+ if (!mz_zip_writer_init_file_v2(&zip_archive, pZip_filename, 0,
+ level_and_flags)) {
+ if (pErr)
+ *pErr = zip_archive.m_last_error;
+ return MZ_FALSE;
+ }
+
+ created_new_archive = MZ_TRUE;
+ } else {
+ /* Append to an existing archive. */
+ if (!mz_zip_reader_init_file_v2(
+ &zip_archive, pZip_filename,
+ level_and_flags |
+ MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY,
+ 0, 0)) {
+ if (pErr)
+ *pErr = zip_archive.m_last_error;
+ return MZ_FALSE;
+ }
+
+ if (!mz_zip_writer_init_from_reader_v2(
+ &zip_archive, pZip_filename, level_and_flags)) {
+ if (pErr)
+ *pErr = zip_archive.m_last_error;
+
+ mz_zip_reader_end_internal(&zip_archive, MZ_FALSE);
+
+ return MZ_FALSE;
+ }
+ }
+
+ status = mz_zip_writer_add_mem_ex(&zip_archive, pArchive_name, pBuf,
+ buf_size, pComment, comment_size,
+ level_and_flags, 0, 0);
+ actual_err = zip_archive.m_last_error;
+
+ /* Always finalize, even if adding failed for some reason, so we
+ * have a valid central directory. (This may not always succeed, but
+ * we can try.) */
+ if (!mz_zip_writer_finalize_archive(&zip_archive)) {
+ if (!actual_err)
+ actual_err = zip_archive.m_last_error;
+
+ status = MZ_FALSE;
+ }
+
+ if (!mz_zip_writer_end_internal(&zip_archive, status)) {
+ if (!actual_err)
+ actual_err = zip_archive.m_last_error;
+
+ status = MZ_FALSE;
+ }
+
+ if ((!status) && (created_new_archive)) {
+ /* It's a new archive and something went wrong, so just delete it.
+ */
+ int ignoredStatus = MZ_DELETE_FILE(pZip_filename);
+ (void) ignoredStatus;
+ }
+
+ if (pErr)
+ *pErr = actual_err;
+
+ return status;
+}
+
+void *mz_zip_extract_archive_file_to_heap_v2(
+ const char *pZip_filename, const char *pArchive_name,
+ const char *pComment, size_t *pSize, mz_uint flags,
+ mz_zip_error *pErr) {
+ mz_uint32 file_index;
+ mz_zip_archive zip_archive;
+ void *p = NULL;
+
+ if (pSize)
+ *pSize = 0;
+
+ if ((!pZip_filename) || (!pArchive_name)) {
+ if (pErr)
+ *pErr = MZ_ZIP_INVALID_PARAMETER;
+
+ return NULL;
+ }
+
+ mz_zip_zero_struct(&zip_archive);
+ if (!mz_zip_reader_init_file_v2(
+ &zip_archive, pZip_filename,
+ flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, 0, 0)) {
+ if (pErr)
+ *pErr = zip_archive.m_last_error;
+
+ return NULL;
+ }
+
+ if (mz_zip_reader_locate_file_v2(&zip_archive, pArchive_name,
+ pComment, flags, &file_index)) {
+ p = mz_zip_reader_extract_to_heap(&zip_archive, file_index, pSize,
+ flags);
+ }
+
+ mz_zip_reader_end_internal(&zip_archive, p != NULL);
+
+ if (pErr)
+ *pErr = zip_archive.m_last_error;
+
+ return p;
+}
+
+void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename,
+ const char *pArchive_name,
+ size_t *pSize,
+ mz_uint flags) {
+ return mz_zip_extract_archive_file_to_heap_v2(
+ pZip_filename, pArchive_name, NULL, pSize, flags, NULL);
+}
+
+# endif /* #ifndef MINIZ_NO_STDIO */
+
+# endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS */
+
+/* ------------------- Misc utils */
+
+mz_zip_mode mz_zip_get_mode(mz_zip_archive *pZip) {
+ return pZip ? pZip->m_zip_mode : MZ_ZIP_MODE_INVALID;
+}
+
+mz_zip_type mz_zip_get_type(mz_zip_archive *pZip) {
+ return pZip ? pZip->m_zip_type : MZ_ZIP_TYPE_INVALID;
+}
+
+mz_zip_error mz_zip_set_last_error(mz_zip_archive *pZip,
+ mz_zip_error err_num) {
+ mz_zip_error prev_err;
+
+ if (!pZip)
+ return MZ_ZIP_INVALID_PARAMETER;
+
+ prev_err = pZip->m_last_error;
+
+ pZip->m_last_error = err_num;
+ return prev_err;
+}
+
+mz_zip_error mz_zip_peek_last_error(mz_zip_archive *pZip) {
+ if (!pZip)
+ return MZ_ZIP_INVALID_PARAMETER;
+
+ return pZip->m_last_error;
+}
+
+mz_zip_error mz_zip_clear_last_error(mz_zip_archive *pZip) {
+ return mz_zip_set_last_error(pZip, MZ_ZIP_NO_ERROR);
+}
+
+mz_zip_error mz_zip_get_last_error(mz_zip_archive *pZip) {
+ mz_zip_error prev_err;
+
+ if (!pZip)
+ return MZ_ZIP_INVALID_PARAMETER;
+
+ prev_err = pZip->m_last_error;
+
+ pZip->m_last_error = MZ_ZIP_NO_ERROR;
+ return prev_err;
+}
+
+const char *mz_zip_get_error_string(mz_zip_error mz_err) {
+ switch (mz_err) {
+ case MZ_ZIP_NO_ERROR: return "no error";
+ case MZ_ZIP_UNDEFINED_ERROR: return "undefined error";
+ case MZ_ZIP_TOO_MANY_FILES: return "too many files";
+ case MZ_ZIP_FILE_TOO_LARGE: return "file too large";
+ case MZ_ZIP_UNSUPPORTED_METHOD: return "unsupported method";
+ case MZ_ZIP_UNSUPPORTED_ENCRYPTION:
+ return "unsupported encryption";
+ case MZ_ZIP_UNSUPPORTED_FEATURE: return "unsupported feature";
+ case MZ_ZIP_FAILED_FINDING_CENTRAL_DIR:
+ return "failed finding central directory";
+ case MZ_ZIP_NOT_AN_ARCHIVE: return "not a ZIP archive";
+ case MZ_ZIP_INVALID_HEADER_OR_CORRUPTED:
+ return "invalid header or archive is corrupted";
+ case MZ_ZIP_UNSUPPORTED_MULTIDISK:
+ return "unsupported multidisk archive";
+ case MZ_ZIP_DECOMPRESSION_FAILED:
+ return "decompression failed or archive is corrupted";
+ case MZ_ZIP_COMPRESSION_FAILED: return "compression failed";
+ case MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE:
+ return "unexpected decompressed size";
+ case MZ_ZIP_CRC_CHECK_FAILED: return "CRC-32 check failed";
+ case MZ_ZIP_UNSUPPORTED_CDIR_SIZE:
+ return "unsupported central directory size";
+ case MZ_ZIP_ALLOC_FAILED: return "allocation failed";
+ case MZ_ZIP_FILE_OPEN_FAILED: return "file open failed";
+ case MZ_ZIP_FILE_CREATE_FAILED: return "file create failed";
+ case MZ_ZIP_FILE_WRITE_FAILED: return "file write failed";
+ case MZ_ZIP_FILE_READ_FAILED: return "file read failed";
+ case MZ_ZIP_FILE_CLOSE_FAILED: return "file close failed";
+ case MZ_ZIP_FILE_SEEK_FAILED: return "file seek failed";
+ case MZ_ZIP_FILE_STAT_FAILED: return "file stat failed";
+ case MZ_ZIP_INVALID_PARAMETER: return "invalid parameter";
+ case MZ_ZIP_INVALID_FILENAME: return "invalid filename";
+ case MZ_ZIP_BUF_TOO_SMALL: return "buffer too small";
+ case MZ_ZIP_INTERNAL_ERROR: return "internal error";
+ case MZ_ZIP_FILE_NOT_FOUND: return "file not found";
+ case MZ_ZIP_ARCHIVE_TOO_LARGE: return "archive is too large";
+ case MZ_ZIP_VALIDATION_FAILED: return "validation failed";
+ case MZ_ZIP_WRITE_CALLBACK_FAILED: return "write callback failed";
+ case MZ_ZIP_TOTAL_ERRORS: return "total errors";
+ default: break;
+ }
+
+ return "unknown error";
+}
+
+/* Note: Just because the archive is not zip64 doesn't necessarily
+ * mean it doesn't have Zip64 extended information extra field, argh.
+ */
+mz_bool mz_zip_is_zip64(mz_zip_archive *pZip) {
+ if ((!pZip) || (!pZip->m_pState))
+ return MZ_FALSE;
+
+ return pZip->m_pState->m_zip64;
+}
+
+size_t mz_zip_get_central_dir_size(mz_zip_archive *pZip) {
+ if ((!pZip) || (!pZip->m_pState))
+ return 0;
+
+ return pZip->m_pState->m_central_dir.m_size;
+}
+
+mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip) {
+ return pZip ? pZip->m_total_files : 0;
+}
+
+mz_uint64 mz_zip_get_archive_size(mz_zip_archive *pZip) {
+ if (!pZip)
+ return 0;
+ return pZip->m_archive_size;
+}
+
+mz_uint64 mz_zip_get_archive_file_start_offset(mz_zip_archive *pZip) {
+ if ((!pZip) || (!pZip->m_pState))
+ return 0;
+ return pZip->m_pState->m_file_archive_start_ofs;
+}
+
+MZ_FILE *mz_zip_get_cfile(mz_zip_archive *pZip) {
+ if ((!pZip) || (!pZip->m_pState))
+ return 0;
+ return pZip->m_pState->m_pFile;
+}
+
+size_t mz_zip_read_archive_data(mz_zip_archive *pZip,
+ mz_uint64 file_ofs, void *pBuf,
+ size_t n) {
+ if ((!pZip) || (!pZip->m_pState) || (!pBuf) || (!pZip->m_pRead))
+ return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+
+ return pZip->m_pRead(pZip->m_pIO_opaque, file_ofs, pBuf, n);
+}
+
+mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip,
+ mz_uint file_index,
+ char *pFilename,
+ mz_uint filename_buf_size) {
+ mz_uint n;
+ const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index);
+ if (!p) {
+ if (filename_buf_size)
+ pFilename[0] = '\0';
+ mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER);
+ return 0;
+ }
+ n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS);
+ if (filename_buf_size) {
+ n = MZ_MIN(n, filename_buf_size - 1);
+ memcpy(pFilename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n);
+ pFilename[n] = '\0';
+ }
+ return n + 1;
+}
+
+mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip,
+ mz_uint file_index,
+ mz_zip_archive_file_stat *pStat) {
+ return mz_zip_file_stat_internal(pZip, file_index,
+ mz_zip_get_cdh(pZip, file_index),
+ pStat, NULL);
+}
+
+mz_bool mz_zip_end(mz_zip_archive *pZip) {
+ if (!pZip)
+ return MZ_FALSE;
+
+ if (pZip->m_zip_mode == MZ_ZIP_MODE_READING)
+ return mz_zip_reader_end(pZip);
+# ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
+ else if ((pZip->m_zip_mode == MZ_ZIP_MODE_WRITING) ||
+ (pZip->m_zip_mode ==
+ MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED))
+ return mz_zip_writer_end(pZip);
+# endif
+
+ return MZ_FALSE;
+}
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /*#ifndef MINIZ_NO_ARCHIVE_APIS*/
diff --git a/source/kit/miniz/miniz_zip.h b/source/kit/miniz/miniz_zip.h
new file mode 100644
index 0000000..46c0b43
--- /dev/null
+++ b/source/kit/miniz/miniz_zip.h
@@ -0,0 +1,668 @@
+#ifndef KIT_MINIZ_MINIZ_ZIP_H
+#define KIT_MINIZ_MINIZ_ZIP_H
+
+#include "miniz_common.h"
+#include "miniz_tdef.h"
+#include "miniz_tinfl.h"
+
+/* ------------------- ZIP archive reading/writing */
+
+#ifndef MINIZ_NO_ARCHIVE_APIS
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+enum {
+ /* Note: These enums can be reduced as needed to save memory or
+ stack space - they are pretty conservative. */
+ MZ_ZIP_MAX_IO_BUF_SIZE = 64 * 1024,
+ MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 512,
+ MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 512
+};
+
+typedef struct {
+ /* Central directory file index. */
+ mz_uint32 m_file_index;
+
+ /* Byte offset of this entry in the archive's central directory.
+ * Note we currently only support up to UINT_MAX or less bytes in
+ * the central dir. */
+ mz_uint64 m_central_dir_ofs;
+
+ /* These fields are copied directly from the zip's central dir. */
+ mz_uint16 m_version_made_by;
+ mz_uint16 m_version_needed;
+ mz_uint16 m_bit_flag;
+ mz_uint16 m_method;
+
+ /* CRC-32 of uncompressed data. */
+ mz_uint32 m_crc32;
+
+ /* File's compressed size. */
+ mz_uint64 m_comp_size;
+
+ /* File's uncompressed size. Note, I've seen some old archives where
+ * directory entries had 512 bytes for their uncompressed sizes, but
+ * when you try to unpack them you actually get 0 bytes. */
+ mz_uint64 m_uncomp_size;
+
+ /* Zip internal and external file attributes. */
+ mz_uint16 m_internal_attr;
+ mz_uint32 m_external_attr;
+
+ /* Entry's local header file offset in bytes. */
+ mz_uint64 m_local_header_ofs;
+
+ /* Size of comment in bytes. */
+ mz_uint32 m_comment_size;
+
+ /* MZ_TRUE if the entry appears to be a directory. */
+ mz_bool m_is_directory;
+
+ /* MZ_TRUE if the entry uses encryption/strong encryption (which
+ * miniz_zip doesn't support) */
+ mz_bool m_is_encrypted;
+
+ /* MZ_TRUE if the file is not encrypted, a patch file, and if it
+ * uses a compression method we support. */
+ mz_bool m_is_supported;
+
+ /* Filename. If string ends in '/' it's a subdirectory entry. */
+ /* Guaranteed to be zero terminated, may be truncated to fit. */
+ char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE];
+
+ /* Comment field. */
+ /* Guaranteed to be zero terminated, may be truncated to fit. */
+ char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE];
+
+# ifdef MINIZ_NO_TIME
+ MZ_TIME_T m_padding;
+# else
+ MZ_TIME_T m_time;
+# endif
+} mz_zip_archive_file_stat;
+
+typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs,
+ void *pBuf, size_t n);
+typedef size_t (*mz_file_write_func)(void *pOpaque,
+ mz_uint64 file_ofs,
+ const void *pBuf, size_t n);
+typedef mz_bool (*mz_file_needs_keepalive)(void *pOpaque);
+
+struct mz_zip_internal_state_tag;
+typedef struct mz_zip_internal_state_tag mz_zip_internal_state;
+
+typedef enum {
+ MZ_ZIP_MODE_INVALID = 0,
+ MZ_ZIP_MODE_READING = 1,
+ MZ_ZIP_MODE_WRITING = 2,
+ MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3
+} mz_zip_mode;
+
+typedef enum {
+ MZ_ZIP_FLAG_CASE_SENSITIVE = 0x0100,
+ MZ_ZIP_FLAG_IGNORE_PATH = 0x0200,
+ MZ_ZIP_FLAG_COMPRESSED_DATA = 0x0400,
+ MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800,
+ MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG =
+ 0x1000, /* if enabled, mz_zip_reader_locate_file() will be
+ called on each file as its validated to ensure the
+ func finds the file in the central dir (intended for
+ testing) */
+ MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY =
+ 0x2000, /* validate the local headers, but don't decompress the
+ entire file and check the crc32 */
+ MZ_ZIP_FLAG_WRITE_ZIP64 =
+ 0x4000, /* always use the zip64 file format, instead of the
+ original zip file format with automatic switch to
+ zip64. Use as flags parameter with
+ mz_zip_writer_init*_v2 */
+ MZ_ZIP_FLAG_WRITE_ALLOW_READING = 0x8000,
+ MZ_ZIP_FLAG_ASCII_FILENAME = 0x10000,
+ /*After adding a compressed file, seek back
+ to local file header and set the correct sizes*/
+ MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE = 0x20000
+} mz_zip_flags;
+
+typedef enum {
+ MZ_ZIP_TYPE_INVALID = 0,
+ MZ_ZIP_TYPE_USER,
+ MZ_ZIP_TYPE_MEMORY,
+ MZ_ZIP_TYPE_HEAP,
+ MZ_ZIP_TYPE_FILE,
+ MZ_ZIP_TYPE_CFILE,
+ MZ_ZIP_TOTAL_TYPES
+} mz_zip_type;
+
+/* miniz error codes. Be sure to update mz_zip_get_error_string() if
+ * you add or modify this enum. */
+typedef enum {
+ MZ_ZIP_NO_ERROR = 0,
+ MZ_ZIP_UNDEFINED_ERROR,
+ MZ_ZIP_TOO_MANY_FILES,
+ MZ_ZIP_FILE_TOO_LARGE,
+ MZ_ZIP_UNSUPPORTED_METHOD,
+ MZ_ZIP_UNSUPPORTED_ENCRYPTION,
+ MZ_ZIP_UNSUPPORTED_FEATURE,
+ MZ_ZIP_FAILED_FINDING_CENTRAL_DIR,
+ MZ_ZIP_NOT_AN_ARCHIVE,
+ MZ_ZIP_INVALID_HEADER_OR_CORRUPTED,
+ MZ_ZIP_UNSUPPORTED_MULTIDISK,
+ MZ_ZIP_DECOMPRESSION_FAILED,
+ MZ_ZIP_COMPRESSION_FAILED,
+ MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE,
+ MZ_ZIP_CRC_CHECK_FAILED,
+ MZ_ZIP_UNSUPPORTED_CDIR_SIZE,
+ MZ_ZIP_ALLOC_FAILED,
+ MZ_ZIP_FILE_OPEN_FAILED,
+ MZ_ZIP_FILE_CREATE_FAILED,
+ MZ_ZIP_FILE_WRITE_FAILED,
+ MZ_ZIP_FILE_READ_FAILED,
+ MZ_ZIP_FILE_CLOSE_FAILED,
+ MZ_ZIP_FILE_SEEK_FAILED,
+ MZ_ZIP_FILE_STAT_FAILED,
+ MZ_ZIP_INVALID_PARAMETER,
+ MZ_ZIP_INVALID_FILENAME,
+ MZ_ZIP_BUF_TOO_SMALL,
+ MZ_ZIP_INTERNAL_ERROR,
+ MZ_ZIP_FILE_NOT_FOUND,
+ MZ_ZIP_ARCHIVE_TOO_LARGE,
+ MZ_ZIP_VALIDATION_FAILED,
+ MZ_ZIP_WRITE_CALLBACK_FAILED,
+ MZ_ZIP_TOTAL_ERRORS
+} mz_zip_error;
+
+typedef struct {
+ mz_uint64 m_archive_size;
+ mz_uint64 m_central_directory_file_ofs;
+
+ /* We only support up to UINT32_MAX files in zip64 mode. */
+ mz_uint32 m_total_files;
+ mz_zip_mode m_zip_mode;
+ mz_zip_type m_zip_type;
+ mz_zip_error m_last_error;
+
+ mz_uint64 m_file_offset_alignment;
+
+ mz_alloc_func m_pAlloc;
+ mz_free_func m_pFree;
+ mz_realloc_func m_pRealloc;
+ void *m_pAlloc_opaque;
+
+ mz_file_read_func m_pRead;
+ mz_file_write_func m_pWrite;
+ mz_file_needs_keepalive m_pNeeds_keepalive;
+ void *m_pIO_opaque;
+
+ mz_zip_internal_state *m_pState;
+
+} mz_zip_archive;
+
+typedef struct {
+ mz_zip_archive *pZip;
+ mz_uint flags;
+
+ int status;
+
+ mz_uint64 read_buf_size, read_buf_ofs, read_buf_avail,
+ comp_remaining, out_buf_ofs, cur_file_ofs;
+ mz_zip_archive_file_stat file_stat;
+ void *pRead_buf;
+ void *pWrite_buf;
+
+ size_t out_blk_remain;
+
+ tinfl_decompressor inflator;
+
+# ifdef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
+ mz_uint padding;
+# else
+ mz_uint file_crc32;
+# endif
+
+} mz_zip_reader_extract_iter_state;
+
+/* -------- ZIP reading */
+
+/* Inits a ZIP archive reader. */
+/* These functions read and validate the archive's central directory.
+ */
+mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size,
+ mz_uint flags);
+
+mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem,
+ size_t size, mz_uint flags);
+
+# ifndef MINIZ_NO_STDIO
+/* Read a archive from a disk file. */
+/* file_start_ofs is the file offset where the archive actually
+ * begins, or 0. */
+/* actual_archive_size is the true total size of the archive, which
+ * may be smaller than the file's actual size on disk. If zero the
+ * entire file is treated as the archive. */
+mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip,
+ const char *pFilename,
+ mz_uint32 flags);
+mz_bool mz_zip_reader_init_file_v2(mz_zip_archive *pZip,
+ const char *pFilename,
+ mz_uint flags,
+ mz_uint64 file_start_ofs,
+ mz_uint64 archive_size);
+
+/* Read an archive from an already opened FILE, beginning at the
+ * current file position. */
+/* The archive is assumed to be archive_size bytes long. If
+ * archive_size is 0, then the entire rest of the file is assumed to
+ * contain the archive. */
+/* The FILE will NOT be closed when mz_zip_reader_end() is called. */
+mz_bool mz_zip_reader_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile,
+ mz_uint64 archive_size,
+ mz_uint flags);
+# endif
+
+/* Ends archive reading, freeing all allocations, and closing the
+ * input archive file if mz_zip_reader_init_file() was used. */
+mz_bool mz_zip_reader_end(mz_zip_archive *pZip);
+
+/* -------- ZIP reading or writing */
+
+/* Clears a mz_zip_archive struct to all zeros. */
+/* Important: This must be done before passing the struct to any
+ * mz_zip functions. */
+void mz_zip_zero_struct(mz_zip_archive *pZip);
+
+mz_zip_mode mz_zip_get_mode(mz_zip_archive *pZip);
+mz_zip_type mz_zip_get_type(mz_zip_archive *pZip);
+
+/* Returns the total number of files in the archive. */
+mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip);
+
+mz_uint64 mz_zip_get_archive_size(mz_zip_archive *pZip);
+mz_uint64 mz_zip_get_archive_file_start_offset(mz_zip_archive *pZip);
+MZ_FILE *mz_zip_get_cfile(mz_zip_archive *pZip);
+
+/* Reads n bytes of raw archive data, starting at file offset
+ * file_ofs, to pBuf. */
+size_t mz_zip_read_archive_data(mz_zip_archive *pZip,
+ mz_uint64 file_ofs, void *pBuf,
+ size_t n);
+
+/* All mz_zip funcs set the m_last_error field in the mz_zip_archive
+ * struct. These functions retrieve/manipulate this field. */
+/* Note that the m_last_error functionality is not thread safe. */
+mz_zip_error mz_zip_set_last_error(mz_zip_archive *pZip,
+ mz_zip_error err_num);
+mz_zip_error mz_zip_peek_last_error(mz_zip_archive *pZip);
+mz_zip_error mz_zip_clear_last_error(mz_zip_archive *pZip);
+mz_zip_error mz_zip_get_last_error(mz_zip_archive *pZip);
+const char *mz_zip_get_error_string(mz_zip_error mz_err);
+
+/* MZ_TRUE if the archive file entry is a directory entry. */
+mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip,
+ mz_uint file_index);
+
+/* MZ_TRUE if the file is encrypted/strong encrypted. */
+mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip,
+ mz_uint file_index);
+
+/* MZ_TRUE if the compression method is supported, and the file is not
+ * encrypted, and the file is not a compressed patch file. */
+mz_bool mz_zip_reader_is_file_supported(mz_zip_archive *pZip,
+ mz_uint file_index);
+
+/* Retrieves the filename of an archive file entry. */
+/* Returns the number of bytes written to pFilename, or if
+ * filename_buf_size is 0 this function returns the number of bytes
+ * needed to fully store the filename. */
+mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip,
+ mz_uint file_index,
+ char *pFilename,
+ mz_uint filename_buf_size);
+
+/* Attempts to locates a file in the archive's central directory. */
+/* Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH */
+/* Returns -1 if the file cannot be found. */
+int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName,
+ const char *pComment, mz_uint flags);
+mz_bool mz_zip_reader_locate_file_v2(mz_zip_archive *pZip,
+ const char *pName,
+ const char *pComment,
+ mz_uint flags,
+ mz_uint32 *file_index);
+
+/* Returns detailed information about an archive file entry. */
+mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip,
+ mz_uint file_index,
+ mz_zip_archive_file_stat *pStat);
+
+/* MZ_TRUE if the file is in zip64 format. */
+/* A file is considered zip64 if it contained a zip64 end of central
+ * directory marker, or if it contained any zip64 extended file
+ * information fields in the central directory. */
+mz_bool mz_zip_is_zip64(mz_zip_archive *pZip);
+
+/* Returns the total central directory size in bytes. */
+/* The current max supported size is <= MZ_UINT32_MAX. */
+size_t mz_zip_get_central_dir_size(mz_zip_archive *pZip);
+
+/* Extracts a archive file to a memory buffer using no memory
+ * allocation. */
+/* There must be at least enough room on the stack to store the
+ * inflator's state (~34KB or so). */
+mz_bool mz_zip_reader_extract_to_mem_no_alloc(
+ mz_zip_archive *pZip, mz_uint file_index, void *pBuf,
+ size_t buf_size, mz_uint flags, void *pUser_read_buf,
+ size_t user_read_buf_size);
+mz_bool mz_zip_reader_extract_file_to_mem_no_alloc(
+ mz_zip_archive *pZip, const char *pFilename, void *pBuf,
+ size_t buf_size, mz_uint flags, void *pUser_read_buf,
+ size_t user_read_buf_size);
+
+/* Extracts a archive file to a memory buffer. */
+mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip,
+ mz_uint file_index, void *pBuf,
+ size_t buf_size, mz_uint flags);
+mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip,
+ const char *pFilename,
+ void *pBuf, size_t buf_size,
+ mz_uint flags);
+
+/* Extracts a archive file to a dynamically allocated heap buffer. */
+/* The memory will be allocated via the mz_zip_archive's alloc/realloc
+ * functions. */
+/* Returns NULL and sets the last error on failure. */
+void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip,
+ mz_uint file_index, size_t *pSize,
+ mz_uint flags);
+void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip,
+ const char *pFilename,
+ size_t *pSize,
+ mz_uint flags);
+
+/* Extracts a archive file using a callback function to output the
+ * file's data. */
+mz_bool mz_zip_reader_extract_to_callback(
+ mz_zip_archive *pZip, mz_uint file_index,
+ mz_file_write_func pCallback, void *pOpaque, mz_uint flags);
+mz_bool mz_zip_reader_extract_file_to_callback(
+ mz_zip_archive *pZip, const char *pFilename,
+ mz_file_write_func pCallback, void *pOpaque, mz_uint flags);
+
+/* Extract a file iteratively */
+mz_zip_reader_extract_iter_state *mz_zip_reader_extract_iter_new(
+ mz_zip_archive *pZip, mz_uint file_index, mz_uint flags);
+mz_zip_reader_extract_iter_state *mz_zip_reader_extract_file_iter_new(
+ mz_zip_archive *pZip, const char *pFilename, mz_uint flags);
+size_t mz_zip_reader_extract_iter_read(
+ mz_zip_reader_extract_iter_state *pState, void *pvBuf,
+ size_t buf_size);
+mz_bool mz_zip_reader_extract_iter_free(
+ mz_zip_reader_extract_iter_state *pState);
+
+# ifndef MINIZ_NO_STDIO
+/* Extracts a archive file to a disk file and sets its last accessed
+ * and modified times. */
+/* This function only extracts files, not archive directory records.
+ */
+mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip,
+ mz_uint file_index,
+ const char *pDst_filename,
+ mz_uint flags);
+mz_bool mz_zip_reader_extract_file_to_file(
+ mz_zip_archive *pZip, const char *pArchive_filename,
+ const char *pDst_filename, mz_uint flags);
+
+/* Extracts a archive file starting at the current position in the
+ * destination FILE stream. */
+mz_bool mz_zip_reader_extract_to_cfile(mz_zip_archive *pZip,
+ mz_uint file_index,
+ MZ_FILE *File, mz_uint flags);
+mz_bool mz_zip_reader_extract_file_to_cfile(
+ mz_zip_archive *pZip, const char *pArchive_filename,
+ MZ_FILE *pFile, mz_uint flags);
+# endif
+
+# if 0
+/* TODO */
+ typedef void *mz_zip_streaming_extract_state_ptr;
+ mz_zip_streaming_extract_state_ptr mz_zip_streaming_extract_begin(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags);
+ mz_uint64 mz_zip_streaming_extract_get_size(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState);
+ mz_uint64 mz_zip_streaming_extract_get_cur_ofs(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState);
+ mz_bool mz_zip_streaming_extract_seek(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, mz_uint64 new_ofs);
+ size_t mz_zip_streaming_extract_read(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, void *pBuf, size_t buf_size);
+ mz_bool mz_zip_streaming_extract_end(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState);
+# endif
+
+/* This function compares the archive's local headers, the optional
+ * local zip64 extended information block, and the optional descriptor
+ * following the compressed data vs. the data in the central
+ * directory. */
+/* It also validates that each file can be successfully uncompressed
+ * unless the MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY is specified. */
+mz_bool mz_zip_validate_file(mz_zip_archive *pZip, mz_uint file_index,
+ mz_uint flags);
+
+/* Validates an entire archive by calling mz_zip_validate_file() on
+ * each file. */
+mz_bool mz_zip_validate_archive(mz_zip_archive *pZip, mz_uint flags);
+
+/* Misc utils/helpers, valid for ZIP reading or writing */
+mz_bool mz_zip_validate_mem_archive(const void *pMem, size_t size,
+ mz_uint flags,
+ mz_zip_error *pErr);
+# ifndef MINIZ_NO_STDIO
+mz_bool mz_zip_validate_file_archive(const char *pFilename,
+ mz_uint flags,
+ mz_zip_error *pErr);
+# endif
+
+/* Universal end function - calls either mz_zip_reader_end() or
+ * mz_zip_writer_end(). */
+mz_bool mz_zip_end(mz_zip_archive *pZip);
+
+/* -------- ZIP writing */
+
+# ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
+
+/* Inits a ZIP archive writer. */
+/*Set pZip->m_pWrite (and pZip->m_pIO_opaque) before calling
+ * mz_zip_writer_init or mz_zip_writer_init_v2*/
+/*The output is streamable, i.e. file_ofs in mz_file_write_func always
+ * increases only by n*/
+mz_bool mz_zip_writer_init(mz_zip_archive *pZip,
+ mz_uint64 existing_size);
+mz_bool mz_zip_writer_init_v2(mz_zip_archive *pZip,
+ mz_uint64 existing_size, mz_uint flags);
+
+mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip,
+ size_t size_to_reserve_at_beginning,
+ size_t initial_allocation_size);
+mz_bool mz_zip_writer_init_heap_v2(
+ mz_zip_archive *pZip, size_t size_to_reserve_at_beginning,
+ size_t initial_allocation_size, mz_uint flags);
+
+# ifndef MINIZ_NO_STDIO
+mz_bool mz_zip_writer_init_file(
+ mz_zip_archive *pZip, const char *pFilename,
+ mz_uint64 size_to_reserve_at_beginning);
+mz_bool mz_zip_writer_init_file_v2(
+ mz_zip_archive *pZip, const char *pFilename,
+ mz_uint64 size_to_reserve_at_beginning, mz_uint flags);
+mz_bool mz_zip_writer_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile,
+ mz_uint flags);
+# endif
+
+/* Converts a ZIP archive reader object into a writer object, to allow
+ * efficient in-place file appends to occur on an existing archive. */
+/* For archives opened using mz_zip_reader_init_file, pFilename must
+ * be the archive's filename so it can be reopened for writing. If the
+ * file can't be reopened, mz_zip_reader_end() will be called. */
+/* For archives opened using mz_zip_reader_init_mem, the memory block
+ * must be growable using the realloc callback (which defaults to
+ * realloc unless you've overridden it). */
+/* Finally, for archives opened using mz_zip_reader_init, the
+ * mz_zip_archive's user provided m_pWrite function cannot be NULL. */
+/* Note: In-place archive modification is not recommended unless you
+ * know what you're doing, because if execution stops or something
+ * goes wrong before */
+/* the archive is finalized the file's central directory will be
+ * hosed. */
+mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip,
+ const char *pFilename);
+mz_bool mz_zip_writer_init_from_reader_v2(mz_zip_archive *pZip,
+ const char *pFilename,
+ mz_uint flags);
+
+/* Adds the contents of a memory buffer to an archive. These functions
+ * record the current local time into the archive. */
+/* To add a directory entry, call this method with an archive name
+ * ending in a forwardslash with an empty buffer. */
+/* level_and_flags - compression level (0-10, see MZ_BEST_SPEED,
+ * MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more
+ * mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION. */
+mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip,
+ const char *pArchive_name,
+ const void *pBuf, size_t buf_size,
+ mz_uint level_and_flags);
+
+/* Like mz_zip_writer_add_mem(), except you can specify a file comment
+ * field, and optionally supply the function with already compressed
+ * data. */
+/* uncomp_size/uncomp_crc32 are only used if the
+ * MZ_ZIP_FLAG_COMPRESSED_DATA flag is specified. */
+mz_bool mz_zip_writer_add_mem_ex(
+ mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf,
+ size_t buf_size, const void *pComment, mz_uint16 comment_size,
+ mz_uint level_and_flags, mz_uint64 uncomp_size,
+ mz_uint32 uncomp_crc32);
+
+mz_bool mz_zip_writer_add_mem_ex_v2(
+ mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf,
+ size_t buf_size, const void *pComment, mz_uint16 comment_size,
+ mz_uint level_and_flags, mz_uint64 uncomp_size,
+ mz_uint32 uncomp_crc32, MZ_TIME_T *last_modified,
+ const char *user_extra_data_local,
+ mz_uint user_extra_data_local_len,
+ const char *user_extra_data_central,
+ mz_uint user_extra_data_central_len);
+
+/* Adds the contents of a file to an archive. This function also
+ * records the disk file's modified time into the archive. */
+/* File data is supplied via a read callback function. User
+ * mz_zip_writer_add_(c)file to add a file directly.*/
+mz_bool mz_zip_writer_add_read_buf_callback(
+ mz_zip_archive *pZip, const char *pArchive_name,
+ mz_file_read_func read_callback, void *callback_opaque,
+ mz_uint64 max_size, const MZ_TIME_T *pFile_time,
+ const void *pComment, mz_uint16 comment_size,
+ mz_uint level_and_flags, const char *user_extra_data_local,
+ mz_uint user_extra_data_local_len,
+ const char *user_extra_data_central,
+ mz_uint user_extra_data_central_len);
+
+# ifndef MINIZ_NO_STDIO
+/* Adds the contents of a disk file to an archive. This function also
+ * records the disk file's modified time into the archive. */
+/* level_and_flags - compression level (0-10, see MZ_BEST_SPEED,
+ * MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more
+ * mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION. */
+mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip,
+ const char *pArchive_name,
+ const char *pSrc_filename,
+ const void *pComment,
+ mz_uint16 comment_size,
+ mz_uint level_and_flags);
+
+/* Like mz_zip_writer_add_file(), except the file data is read from
+ * the specified FILE stream. */
+mz_bool mz_zip_writer_add_cfile(
+ mz_zip_archive *pZip, const char *pArchive_name,
+ MZ_FILE *pSrc_file, mz_uint64 max_size,
+ const MZ_TIME_T *pFile_time, const void *pComment,
+ mz_uint16 comment_size, mz_uint level_and_flags,
+ const char *user_extra_data_local,
+ mz_uint user_extra_data_local_len,
+ const char *user_extra_data_central,
+ mz_uint user_extra_data_central_len);
+# endif
+
+/* Adds a file to an archive by fully cloning the data from another
+ * archive. */
+/* This function fully clones the source file's compressed data (no
+ * recompression), along with its full filename, extra data (it may
+ * add or modify the zip64 local header extra data field), and the
+ * optional descriptor following the compressed data. */
+mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip,
+ mz_zip_archive *pSource_zip,
+ mz_uint src_file_index);
+
+/* Finalizes the archive by writing the central directory records
+ * followed by the end of central directory record. */
+/* After an archive is finalized, the only valid call on the
+ * mz_zip_archive struct is mz_zip_writer_end(). */
+/* An archive must be manually finalized by calling this function for
+ * it to be valid. */
+mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip);
+
+/* Finalizes a heap archive, returning a pointer to the heap block and
+ * its size. */
+/* The heap block will be allocated using the mz_zip_archive's
+ * alloc/realloc callbacks. */
+mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip,
+ void **ppBuf,
+ size_t *pSize);
+
+/* Ends archive writing, freeing all allocations, and closing the
+ * output file if mz_zip_writer_init_file() was used. */
+/* Note for the archive to be valid, it *must* have been finalized
+ * before ending (this function will not do it for you). */
+mz_bool mz_zip_writer_end(mz_zip_archive *pZip);
+
+/* -------- Misc. high-level helper functions: */
+
+/* mz_zip_add_mem_to_archive_file_in_place() efficiently (but not
+ * atomically) appends a memory blob to a ZIP archive. */
+/* Note this is NOT a fully safe operation. If it crashes or dies in
+ * some way your archive can be left in a screwed up state (without a
+ * central directory). */
+/* level_and_flags - compression level (0-10, see MZ_BEST_SPEED,
+ * MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more
+ * mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION. */
+/* TODO: Perhaps add an option to leave the existing central dir in
+ * place in case the add dies? We could then truncate the file (so the
+ * old central dir would be at the end) if something goes wrong. */
+mz_bool mz_zip_add_mem_to_archive_file_in_place(
+ const char *pZip_filename, const char *pArchive_name,
+ const void *pBuf, size_t buf_size, const void *pComment,
+ mz_uint16 comment_size, mz_uint level_and_flags);
+mz_bool mz_zip_add_mem_to_archive_file_in_place_v2(
+ const char *pZip_filename, const char *pArchive_name,
+ const void *pBuf, size_t buf_size, const void *pComment,
+ mz_uint16 comment_size, mz_uint level_and_flags,
+ mz_zip_error *pErr);
+
+# ifndef MINIZ_NO_STDIO
+/* Reads a single file from an archive into a heap block. */
+/* If pComment is not NULL, only the file with the specified comment
+ * will be extracted. */
+/* Returns NULL on failure. */
+void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename,
+ const char *pArchive_name,
+ size_t *pSize,
+ mz_uint flags);
+void *mz_zip_extract_archive_file_to_heap_v2(
+ const char *pZip_filename, const char *pArchive_name,
+ const char *pComment, size_t *pSize, mz_uint flags,
+ mz_zip_error *pErr);
+# endif
+
+# endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS */
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /* MINIZ_NO_ARCHIVE_APIS */
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 17:22:52 +0000