1/* miniz.c 2.0.8 - public domain deflate/inflate, zlib-subset, ZIP reading/writing/appending, PNG writing
2 See "unlicense" statement at the end of this file.
3 Rich Geldreich <richgel99@gmail.com>, last updated Oct. 13, 2013
4 Implements RFC 1950: http://www.ietf.org/rfc/rfc1950.txt and RFC 1951: http://www.ietf.org/rfc/rfc1951.txt
5
6 Most API's defined in miniz.c are optional. For example, to disable the archive related functions just define
7 MINIZ_NO_ARCHIVE_APIS, or to get rid of all stdio usage define MINIZ_NO_STDIO (see the list below for more macros).
8
9 * Low-level Deflate/Inflate implementation notes:
10
11 Compression: Use the "tdefl" API's. The compressor supports raw, static, and dynamic blocks, lazy or
12 greedy parsing, match length filtering, RLE-only, and Huffman-only streams. It performs and compresses
13 approximately as well as zlib.
14
15 Decompression: Use the "tinfl" API's. The entire decompressor is implemented as a single function
16 coroutine: see tinfl_decompress(). It supports decompression into a 32KB (or larger power of 2) wrapping buffer, or into a memory
17 block large enough to hold the entire file.
18
19 The low-level tdefl/tinfl API's do not make any use of dynamic memory allocation.
20
21 * zlib-style API notes:
22
23 miniz.c implements a fairly large subset of zlib. There's enough functionality present for it to be a drop-in
24 zlib replacement in many apps:
25 The z_stream struct, optional memory allocation callbacks
26 deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound
27 inflateInit/inflateInit2/inflate/inflateEnd
28 compress, compress2, compressBound, uncompress
29 CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly routines.
30 Supports raw deflate streams or standard zlib streams with adler-32 checking.
31
32 Limitations:
33 The callback API's are not implemented yet. No support for gzip headers or zlib static dictionaries.
34 I've tried to closely emulate zlib's various flavors of stream flushing and return status codes, but
35 there are no guarantees that miniz.c pulls this off perfectly.
36
37 * PNG writing: See the tdefl_write_image_to_png_file_in_memory() function, originally written by
38 Alex Evans. Supports 1-4 bytes/pixel images.
39
40 * ZIP archive API notes:
41
42 The ZIP archive API's where designed with simplicity and efficiency in mind, with just enough abstraction to
43 get the job done with minimal fuss. There are simple API's to retrieve file information, read files from
44 existing archives, create new archives, append new files to existing archives, or clone archive data from
45 one archive to another. It supports archives located in memory or the heap, on disk (using stdio.h),
46 or you can specify custom file read/write callbacks.
47
48 - Archive reading: Just call this function to read a single file from a disk archive:
49
50 void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name,
51 size_t *pSize, mz_uint zip_flags);
52
53 For more complex cases, use the "mz_zip_reader" functions. Upon opening an archive, the entire central
54 directory is located and read as-is into memory, and subsequent file access only occurs when reading individual files.
55
56 - Archives file scanning: The simple way is to use this function to scan a loaded archive for a specific file:
57
58 int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags);
59
60 The locate operation can optionally check file comments too, which (as one example) can be used to identify
61 multiple versions of the same file in an archive. This function uses a simple linear search through the central
62 directory, so it's not very fast.
63
64 Alternately, you can iterate through all the files in an archive (using mz_zip_reader_get_num_files()) and
65 retrieve detailed info on each file by calling mz_zip_reader_file_stat().
66
67 - Archive creation: Use the "mz_zip_writer" functions. The ZIP writer immediately writes compressed file data
68 to disk and builds an exact image of the central directory in memory. The central directory image is written
69 all at once at the end of the archive file when the archive is finalized.
70
71 The archive writer can optionally align each file's local header and file data to any power of 2 alignment,
72 which can be useful when the archive will be read from optical media. Also, the writer supports placing
73 arbitrary data blobs at the very beginning of ZIP archives. Archives written using either feature are still
74 readable by any ZIP tool.
75
76 - Archive appending: The simple way to add a single file to an archive is to call this function:
77
78 mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name,
79 const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags);
80
81 The archive will be created if it doesn't already exist, otherwise it'll be appended to.
82 Note the appending is done in-place and is not an atomic operation, so if something goes wrong
83 during the operation it's possible the archive could be left without a central directory (although the local
84 file headers and file data will be fine, so the archive will be recoverable).
85
86 For more complex archive modification scenarios:
87 1. The safest way is to use a mz_zip_reader to read the existing archive, cloning only those bits you want to
88 preserve into a new archive using using the mz_zip_writer_add_from_zip_reader() function (which compiles the
89 compressed file data as-is). When you're done, delete the old archive and rename the newly written archive, and
90 you're done. This is safe but requires a bunch of temporary disk space or heap memory.
91
92 2. Or, you can convert an mz_zip_reader in-place to an mz_zip_writer using mz_zip_writer_init_from_reader(),
93 append new files as needed, then finalize the archive which will write an updated central directory to the
94 original archive. (This is basically what mz_zip_add_mem_to_archive_file_in_place() does.) There's a
95 possibility that the archive's central directory could be lost with this method if anything goes wrong, though.
96
97 - ZIP archive support limitations:
98 No zip64 or spanning support. Extraction functions can only handle unencrypted, stored or deflated files.
99 Requires streams capable of seeking.
100
101 * This is a header file library, like stb_image.c. To get only a header file, either cut and paste the
102 below header, or create miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then include miniz.c from it.
103
104 * Important: For best perf. be sure to customize the below macros for your target platform:
105 #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1
106 #define MINIZ_LITTLE_ENDIAN 1
107 #define MINIZ_HAS_64BIT_REGISTERS 1
108
109 * On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE 1" before including miniz.c to ensure miniz
110 uses the 64-bit variants: fopen64(), stat64(), etc. Otherwise you won't be able to process large files
111 (i.e. 32-bit stat() fails for me on files > 0x7FFFFFFF bytes).
112*/
113#pragma once
114
115
116
117
118/* Defines to completely disable specific portions of miniz.c:
119 If all macros here are defined the only functionality remaining will be CRC-32, adler-32, tinfl, and tdefl. */
120
121/* Define MINIZ_NO_STDIO to disable all usage and any functions which rely on stdio for file I/O. */
122#define MINIZ_NO_STDIO
123
124/* If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able to get the current time, or */
125/* get/set file times, and the C run-time funcs that get/set times won't be called. */
126/* The current downside is the times written to your archives will be from 1979. */
127#define MINIZ_NO_TIME
128
129/* Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's. */
130/* #define MINIZ_NO_ARCHIVE_APIS */
131
132/* Define MINIZ_NO_ARCHIVE_WRITING_APIS to disable all writing related ZIP archive API's. */
133/* #define MINIZ_NO_ARCHIVE_WRITING_APIS */
134
135/* Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression API's. */
136/*#define MINIZ_NO_ZLIB_APIS */
137
138/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent conflicts against stock zlib. */
139#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES
140
141/* Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc.
142 Note if MINIZ_NO_MALLOC is defined then the user must always provide custom user alloc/free/realloc
143 callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user
144 functions (such as tdefl_compress_mem_to_heap() and tinfl_decompress_mem_to_heap()) won't work. */
145/*#define MINIZ_NO_MALLOC */
146
147#if defined(__TINYC__) && (defined(__linux) || defined(__linux__))
148/* TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc on Linux */
149#define MINIZ_NO_TIME
150#endif
151
152#include <stddef.h>
153
154
155
156#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS)
157#include <time.h>
158#endif
159
160#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__i486__) || defined(__i486) || defined(i386) || defined(__ia64__) || defined(__x86_64__)
161/* MINIZ_X86_OR_X64_CPU is only used to help set the below macros. */
162#define MINIZ_X86_OR_X64_CPU 1
163#else
164#define MINIZ_X86_OR_X64_CPU 0
165#endif
166
167#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU
168/* Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. */
169#define MINIZ_LITTLE_ENDIAN 1
170#else
171#define MINIZ_LITTLE_ENDIAN 0
172#endif
173
174#if MINIZ_X86_OR_X64_CPU
175/* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses. */
176#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0 // always 0 because alignment
177#else
178#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0
179#endif
180
181#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__)
182/* 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). */
183#define MINIZ_HAS_64BIT_REGISTERS 1
184#else
185#define MINIZ_HAS_64BIT_REGISTERS 0
186#endif
187
188namespace duckdb_miniz {
189
190/* ------------------- zlib-style API Definitions. */
191
192/* 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! */
193typedef unsigned long mz_ulong;
194
195/* 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. */
196void mz_free(void *p);
197
198#define MZ_ADLER32_INIT (1)
199/* mz_adler32() returns the initial adler-32 value to use when called with ptr==NULL. */
200mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len);
201
202#define MZ_CRC32_INIT (0)
203/* mz_crc32() returns the initial CRC-32 value to use when called with ptr==NULL. */
204mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len);
205
206/* Compression strategies. */
207enum { MZ_DEFAULT_STRATEGY = 0, MZ_FILTERED = 1, MZ_HUFFMAN_ONLY = 2, MZ_RLE = 3, MZ_FIXED = 4 };
208
209/* Method */
210#define MZ_DEFLATED 8
211
212/* Heap allocation callbacks.
213Note that mz_alloc_func parameter types purpsosely differ from zlib's: items/size is size_t, not unsigned long. */
214typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size);
215typedef void (*mz_free_func)(void *opaque, void *address);
216typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items, size_t size);
217
218/* 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. */
219enum {
220 MZ_NO_COMPRESSION = 0,
221 MZ_BEST_SPEED = 1,
222 MZ_BEST_COMPRESSION = 9,
223 MZ_UBER_COMPRESSION = 10,
224 MZ_DEFAULT_LEVEL = 6,
225 MZ_DEFAULT_COMPRESSION = -1
226};
227
228#define MZ_VERSION "10.0.3"
229#define MZ_VERNUM 0xA030
230#define MZ_VER_MAJOR 10
231#define MZ_VER_MINOR 0
232#define MZ_VER_REVISION 3
233#define MZ_VER_SUBREVISION 0
234
235#ifndef MINIZ_NO_ZLIB_APIS
236
237/* 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). */
238enum { MZ_NO_FLUSH = 0, MZ_PARTIAL_FLUSH = 1, MZ_SYNC_FLUSH = 2, MZ_FULL_FLUSH = 3, MZ_FINISH = 4, MZ_BLOCK = 5 };
239
240/* Return status codes. MZ_PARAM_ERROR is non-standard. */
241enum {
242 MZ_OK = 0,
243 MZ_STREAM_END = 1,
244 MZ_NEED_DICT = 2,
245 MZ_ERRNO = -1,
246 MZ_STREAM_ERROR = -2,
247 MZ_DATA_ERROR = -3,
248 MZ_MEM_ERROR = -4,
249 MZ_BUF_ERROR = -5,
250 MZ_VERSION_ERROR = -6,
251 MZ_PARAM_ERROR = -10000
252};
253
254/* Window bits */
255#define MZ_DEFAULT_WINDOW_BITS 15
256
257struct mz_internal_state;
258
259/* Compression/decompression stream struct. */
260typedef struct mz_stream_s {
261 const unsigned char *next_in; /* pointer to next byte to read */
262 unsigned int avail_in; /* number of bytes available at next_in */
263 mz_ulong total_in; /* total number of bytes consumed so far */
264
265 unsigned char *next_out; /* pointer to next byte to write */
266 unsigned int avail_out; /* number of bytes that can be written to next_out */
267 mz_ulong total_out; /* total number of bytes produced so far */
268
269 char *msg; /* error msg (unused) */
270 struct mz_internal_state *state; /* internal state, allocated by zalloc/zfree */
271
272 mz_alloc_func zalloc; /* optional heap allocation function (defaults to malloc) */
273 mz_free_func zfree; /* optional heap free function (defaults to free) */
274 void *opaque; /* heap alloc function user pointer */
275
276 int data_type; /* data_type (unused) */
277 mz_ulong adler; /* adler32 of the source or uncompressed data */
278 mz_ulong reserved; /* not used */
279} mz_stream;
280
281typedef mz_stream *mz_streamp;
282
283/* Returns the version string of miniz.c. */
284const char *mz_version(void);
285
286/* mz_deflateInit() initializes a compressor with default options: */
287/* Parameters: */
288/* pStream must point to an initialized mz_stream struct. */
289/* level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION]. */
290/* level 1 enables a specially optimized compression function that's been optimized purely for performance, not ratio.
291 */
292/* (This special func. is currently only enabled when MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.) */
293/* Return values: */
294/* MZ_OK on success. */
295/* MZ_STREAM_ERROR if the stream is bogus. */
296/* MZ_PARAM_ERROR if the input parameters are bogus. */
297/* MZ_MEM_ERROR on out of memory. */
298int mz_deflateInit(mz_streamp pStream, int level);
299
300/* mz_deflateInit2() is like mz_deflate(), except with more control: */
301/* Additional parameters: */
302/* method must be MZ_DEFLATED */
303/* 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) */
304/* mem_level must be between [1, 9] (it's checked but ignored by miniz.c) */
305int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy);
306
307/* Quickly resets a compressor without having to reallocate anything. Same as calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2(). */
308int mz_deflateReset(mz_streamp pStream);
309
310/* mz_deflate() compresses the input to output, consuming as much of the input and producing as much output as possible.
311 */
312/* Parameters: */
313/* 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. */
314/* flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or MZ_FINISH. */
315/* Return values: */
316/* 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). */
317/* 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. */
318/* MZ_STREAM_ERROR if the stream is bogus. */
319/* MZ_PARAM_ERROR if one of the parameters is invalid. */
320/* 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.) */
321int mz_deflate(mz_streamp pStream, int flush);
322
323/* mz_deflateEnd() deinitializes a compressor: */
324/* Return values: */
325/* MZ_OK on success. */
326/* MZ_STREAM_ERROR if the stream is bogus. */
327int mz_deflateEnd(mz_streamp pStream);
328
329/* 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. */
330mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len);
331
332/* Single-call compression functions mz_compress() and mz_compress2(): */
333/* Returns MZ_OK on success, or one of the error codes from mz_deflate() on failure. */
334int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len);
335int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len,
336 int level);
337
338/* mz_compressBound() returns a (very) conservative upper bound on the amount of data that could be generated by calling mz_compress(). */
339mz_ulong mz_compressBound(mz_ulong source_len);
340
341/* Initializes a decompressor. */
342int mz_inflateInit(mz_streamp pStream);
343
344/* 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: */
345/* window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate). */
346int mz_inflateInit2(mz_streamp pStream, int window_bits);
347
348/* 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. */
349/* Parameters: */
350/* 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. */
351/* flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH. */
352/* 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). */
353/* 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. */
354/* Return values: */
355/* 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. */
356/* 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. */
357/* MZ_STREAM_ERROR if the stream is bogus. */
358/* MZ_DATA_ERROR if the deflate stream is invalid. */
359/* MZ_PARAM_ERROR if one of the parameters is invalid. */
360/* 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 */
361/* with more input data, or with more room in the output buffer (except when using single call decompression, described above). */
362int mz_inflate(mz_streamp pStream, int flush);
363
364/* Deinitializes a decompressor. */
365int mz_inflateEnd(mz_streamp pStream);
366
367/* Single-call decompression. */
368/* Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure. */
369int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len);
370
371/* Returns a string description of the specified error code, or NULL if the error code is invalid. */
372const char *mz_error(int err);
373
374/* 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. */
375/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you use zlib in the same project. */
376#ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES
377typedef unsigned char Byte;
378typedef unsigned int uInt;
379typedef mz_ulong uLong;
380typedef Byte Bytef;
381typedef uInt uIntf;
382typedef char charf;
383typedef int intf;
384typedef void *voidpf;
385typedef uLong uLongf;
386typedef void *voidp;
387typedef void *const voidpc;
388#define Z_NULL 0
389#define Z_NO_FLUSH MZ_NO_FLUSH
390#define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH
391#define Z_SYNC_FLUSH MZ_SYNC_FLUSH
392#define Z_FULL_FLUSH MZ_FULL_FLUSH
393#define Z_FINISH MZ_FINISH
394#define Z_BLOCK MZ_BLOCK
395#define Z_OK MZ_OK
396#define Z_STREAM_END MZ_STREAM_END
397#define Z_NEED_DICT MZ_NEED_DICT
398#define Z_ERRNO MZ_ERRNO
399#define Z_STREAM_ERROR MZ_STREAM_ERROR
400#define Z_DATA_ERROR MZ_DATA_ERROR
401#define Z_MEM_ERROR MZ_MEM_ERROR
402#define Z_BUF_ERROR MZ_BUF_ERROR
403#define Z_VERSION_ERROR MZ_VERSION_ERROR
404#define Z_PARAM_ERROR MZ_PARAM_ERROR
405#define Z_NO_COMPRESSION MZ_NO_COMPRESSION
406#define Z_BEST_SPEED MZ_BEST_SPEED
407#define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION
408#define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION
409#define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY
410#define Z_FILTERED MZ_FILTERED
411#define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY
412#define Z_RLE MZ_RLE
413#define Z_FIXED MZ_FIXED
414#define Z_DEFLATED MZ_DEFLATED
415#define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS
416#define alloc_func mz_alloc_func
417#define free_func mz_free_func
418#define internal_state mz_internal_state
419#define z_stream mz_stream
420#define deflateInit mz_deflateInit
421#define deflateInit2 mz_deflateInit2
422#define deflateReset mz_deflateReset
423#define deflate mz_deflate
424#define deflateEnd mz_deflateEnd
425#define deflateBound mz_deflateBound
426#define compress mz_compress
427#define compress2 mz_compress2
428#define compressBound mz_compressBound
429#define inflateInit mz_inflateInit
430#define inflateInit2 mz_inflateInit2
431#define inflate mz_inflate
432#define inflateEnd mz_inflateEnd
433#define uncompress mz_uncompress
434#define crc32 mz_crc32
435#define adler32 mz_adler32
436#define MAX_WBITS 15
437#define MAX_MEM_LEVEL 9
438#define zError mz_error
439#define ZLIB_VERSION MZ_VERSION
440#define ZLIB_VERNUM MZ_VERNUM
441#define ZLIB_VER_MAJOR MZ_VER_MAJOR
442#define ZLIB_VER_MINOR MZ_VER_MINOR
443#define ZLIB_VER_REVISION MZ_VER_REVISION
444#define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION
445#define zlibVersion mz_version
446#define zlib_version mz_version()
447#endif /* #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES */
448
449#endif /* MINIZ_NO_ZLIB_APIS */
450
451}
452
453#pragma once
454#include <assert.h>
455#include <stdint.h>
456#include <stdlib.h>
457#include <string.h>
458
459namespace duckdb_miniz {
460
461/* ------------------- Types and macros */
462typedef unsigned char mz_uint8;
463typedef signed short mz_int16;
464typedef unsigned short mz_uint16;
465typedef unsigned int mz_uint32;
466typedef unsigned int mz_uint;
467typedef int64_t mz_int64;
468typedef uint64_t mz_uint64;
469typedef int mz_bool;
470
471#define MZ_FALSE (0)
472#define MZ_TRUE (1)
473
474/* Works around MSVC's spammy "warning C4127: conditional expression is constant" message. */
475#ifdef _MSC_VER
476#define MZ_MACRO_END while (0, 0)
477#else
478#define MZ_MACRO_END while (0)
479#endif
480
481#ifdef MINIZ_NO_STDIO
482#define MZ_FILE void *
483#else
484#include <stdio.h>
485#define MZ_FILE FILE
486#endif /* #ifdef MINIZ_NO_STDIO */
487
488#ifdef MINIZ_NO_TIME
489typedef struct mz_dummy_time_t_tag
490{
491 int m_dummy;
492} mz_dummy_time_t;
493#define MZ_TIME_T mz_dummy_time_t
494#else
495#define MZ_TIME_T time_t
496#endif
497
498#define MZ_ASSERT(x) assert(x)
499
500#ifdef MINIZ_NO_MALLOC
501#define MZ_MALLOC(x) NULL
502#define MZ_FREE(x) (void)x, ((void)0)
503#define MZ_REALLOC(p, x) NULL
504#else
505#define MZ_MALLOC(x) malloc(x)
506#define MZ_FREE(x) free(x)
507#define MZ_REALLOC(p, x) realloc(p, x)
508#endif
509
510#define MZ_MAX(a, b) (((a) > (b)) ? (a) : (b))
511#define MZ_MIN(a, b) (((a) < (b)) ? (a) : (b))
512#define MZ_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj))
513
514#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN
515#define MZ_READ_LE16(p) *((const mz_uint16 *)(p))
516#define MZ_READ_LE32(p) *((const mz_uint32 *)(p))
517#else
518#define MZ_READ_LE16(p) ((mz_uint32)(((const mz_uint8 *)(p))[0]) | ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U))
519#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))
520#endif
521
522#define MZ_READ_LE64(p) (((mz_uint64)MZ_READ_LE32(p)) | (((mz_uint64)MZ_READ_LE32((const mz_uint8 *)(p) + sizeof(mz_uint32))) << 32U))
523
524#ifdef _MSC_VER
525#define MZ_FORCEINLINE __forceinline
526#elif defined(__GNUC__)
527#define MZ_FORCEINLINE __inline__ __attribute__((__always_inline__))
528#else
529#define MZ_FORCEINLINE inline
530#endif
531
532extern void *miniz_def_alloc_func(void *opaque, size_t items, size_t size);
533extern void miniz_def_free_func(void *opaque, void *address);
534extern void *miniz_def_realloc_func(void *opaque, void *address, size_t items, size_t size);
535
536#define MZ_UINT16_MAX (0xFFFFU)
537#define MZ_UINT32_MAX (0xFFFFFFFFU)
538
539
540#pragma once
541
542
543/* ------------------- Low-level Compression API Definitions */
544
545/* Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be slightly slower, and raw/dynamic blocks will be output more frequently). */
546#define TDEFL_LESS_MEMORY 0
547
548/* tdefl_init() compression flags logically OR'd together (low 12 bits contain the max. number of probes per dictionary search): */
549/* 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). */
550enum
551{
552 TDEFL_HUFFMAN_ONLY = 0,
553 TDEFL_DEFAULT_MAX_PROBES = 128,
554 TDEFL_MAX_PROBES_MASK = 0xFFF
555};
556
557/* 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. */
558/* TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even when not writing zlib headers). */
559/* TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more efficient lazy parsing. */
560/* 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). */
561/* TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1) */
562/* TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled. */
563/* TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables. */
564/* TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks. */
565/* The low 12 bits are reserved to control the max # of hash probes per dictionary lookup (see TDEFL_MAX_PROBES_MASK). */
566enum
567{
568 TDEFL_WRITE_ZLIB_HEADER = 0x01000,
569 TDEFL_COMPUTE_ADLER32 = 0x02000,
570 TDEFL_GREEDY_PARSING_FLAG = 0x04000,
571 TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000,
572 TDEFL_RLE_MATCHES = 0x10000,
573 TDEFL_FILTER_MATCHES = 0x20000,
574 TDEFL_FORCE_ALL_STATIC_BLOCKS = 0x40000,
575 TDEFL_FORCE_ALL_RAW_BLOCKS = 0x80000
576};
577
578/* High level compression functions: */
579/* tdefl_compress_mem_to_heap() compresses a block in memory to a heap block allocated via malloc(). */
580/* On entry: */
581/* pSrc_buf, src_buf_len: Pointer and size of source block to compress. */
582/* flags: The max match finder probes (default is 128) logically OR'd against the above flags. Higher probes are slower but improve compression. */
583/* On return: */
584/* Function returns a pointer to the compressed data, or NULL on failure. */
585/* *pOut_len will be set to the compressed data's size, which could be larger than src_buf_len on uncompressible data. */
586/* The caller must free() the returned block when it's no longer needed. */
587void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);
588
589/* tdefl_compress_mem_to_mem() compresses a block in memory to another block in memory. */
590/* Returns 0 on failure. */
591size_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);
592
593/* Compresses an image to a compressed PNG file in memory. */
594/* On entry: */
595/* pImage, w, h, and num_chans describe the image to compress. num_chans may be 1, 2, 3, or 4. */
596/* The image pitch in bytes per scanline will be w*num_chans. The leftmost pixel on the top scanline is stored first in memory. */
597/* 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 */
598/* If flip is true, the image will be flipped on the Y axis (useful for OpenGL apps). */
599/* On return: */
600/* Function returns a pointer to the compressed data, or NULL on failure. */
601/* *pLen_out will be set to the size of the PNG image file. */
602/* The caller must mz_free() the returned heap block (which will typically be larger than *pLen_out) when it's no longer needed. */
603void *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);
604void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out);
605
606/* Output stream interface. The compressor uses this interface to write compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE at a time. */
607typedef mz_bool (*tdefl_put_buf_func_ptr)(const void *pBuf, int len, void *pUser);
608
609/* tdefl_compress_mem_to_output() compresses a block to an output stream. The above helpers use this function internally. */
610mz_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);
611
612enum
613{
614 TDEFL_MAX_HUFF_TABLES = 3,
615 TDEFL_MAX_HUFF_SYMBOLS_0 = 288,
616 TDEFL_MAX_HUFF_SYMBOLS_1 = 32,
617 TDEFL_MAX_HUFF_SYMBOLS_2 = 19,
618 TDEFL_LZ_DICT_SIZE = 32768,
619 TDEFL_LZ_DICT_SIZE_MASK = TDEFL_LZ_DICT_SIZE - 1,
620 TDEFL_MIN_MATCH_LEN = 3,
621 TDEFL_MAX_MATCH_LEN = 258
622};
623
624/* TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed output block (using static/fixed Huffman codes). */
625#if TDEFL_LESS_MEMORY
626enum
627{
628 TDEFL_LZ_CODE_BUF_SIZE = 24 * 1024,
629 TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10,
630 TDEFL_MAX_HUFF_SYMBOLS = 288,
631 TDEFL_LZ_HASH_BITS = 12,
632 TDEFL_LEVEL1_HASH_SIZE_MASK = 4095,
633 TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3,
634 TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS
635};
636#else
637enum
638{
639 TDEFL_LZ_CODE_BUF_SIZE = 64 * 1024,
640 TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10,
641 TDEFL_MAX_HUFF_SYMBOLS = 288,
642 TDEFL_LZ_HASH_BITS = 15,
643 TDEFL_LEVEL1_HASH_SIZE_MASK = 4095,
644 TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3,
645 TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS
646};
647#endif
648
649/* 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. */
650typedef enum {
651 TDEFL_STATUS_BAD_PARAM = -2,
652 TDEFL_STATUS_PUT_BUF_FAILED = -1,
653 TDEFL_STATUS_OKAY = 0,
654 TDEFL_STATUS_DONE = 1
655} tdefl_status;
656
657/* Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums */
658typedef enum {
659 TDEFL_NO_FLUSH = 0,
660 TDEFL_SYNC_FLUSH = 2,
661 TDEFL_FULL_FLUSH = 3,
662 TDEFL_FINISH = 4
663} tdefl_flush;
664
665/* tdefl's compression state structure. */
666typedef struct
667{
668 tdefl_put_buf_func_ptr m_pPut_buf_func;
669 void *m_pPut_buf_user;
670 mz_uint m_flags, m_max_probes[2];
671 int m_greedy_parsing;
672 mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size;
673 mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end;
674 mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, m_bit_buffer;
675 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;
676 tdefl_status m_prev_return_status;
677 const void *m_pIn_buf;
678 void *m_pOut_buf;
679 size_t *m_pIn_buf_size, *m_pOut_buf_size;
680 tdefl_flush m_flush;
681 const mz_uint8 *m_pSrc;
682 size_t m_src_buf_left, m_out_buf_ofs;
683 mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1];
684 mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
685 mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
686 mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS];
687 mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE];
688 mz_uint16 m_next[TDEFL_LZ_DICT_SIZE];
689 mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE];
690 mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE];
691} tdefl_compressor;
692
693/* Initializes the compressor. */
694/* There is no corresponding deinit() function because the tdefl API's do not dynamically allocate memory. */
695/* 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. */
696/* If pBut_buf_func is NULL the user should always call the tdefl_compress() API. */
697/* flags: See the above enums (TDEFL_HUFFMAN_ONLY, TDEFL_WRITE_ZLIB_HEADER, etc.) */
698tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags);
699
700/* 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. */
701tdefl_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);
702
703/* tdefl_compress_buffer() is only usable when the tdefl_init() is called with a non-NULL tdefl_put_buf_func_ptr. */
704/* tdefl_compress_buffer() always consumes the entire input buffer. */
705tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush);
706
707tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d);
708mz_uint32 tdefl_get_adler32(tdefl_compressor *d);
709
710/* Create tdefl_compress() flags given zlib-style compression parameters. */
711/* level may range from [0,10] (where 10 is absolute max compression, but may be much slower on some files) */
712/* window_bits may be -15 (raw deflate) or 15 (zlib) */
713/* strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED, MZ_HUFFMAN_ONLY, MZ_RLE, or MZ_FIXED */
714mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy);
715
716/* Allocate the tdefl_compressor structure in C so that */
717/* non-C language bindings to tdefl_ API don't need to worry about */
718/* structure size and allocation mechanism. */
719tdefl_compressor *tdefl_compressor_alloc();
720void tdefl_compressor_free(tdefl_compressor *pComp);
721
722
723#pragma once
724
725/* ------------------- Low-level Decompression API Definitions */
726
727
728/* Decompression flags used by tinfl_decompress(). */
729/* 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. */
730/* 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. */
731/* 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). */
732/* TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the decompressed bytes. */
733enum
734{
735 TINFL_FLAG_PARSE_ZLIB_HEADER = 1,
736 TINFL_FLAG_HAS_MORE_INPUT = 2,
737 TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4,
738 TINFL_FLAG_COMPUTE_ADLER32 = 8
739};
740
741/* High level decompression functions: */
742/* tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block allocated via malloc(). */
743/* On entry: */
744/* pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data to decompress. */
745/* On return: */
746/* Function returns a pointer to the decompressed data, or NULL on failure. */
747/* *pOut_len will be set to the decompressed data's size, which could be larger than src_buf_len on uncompressible data. */
748/* The caller must call mz_free() on the returned block when it's no longer needed. */
749void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags);
750
751/* tinfl_decompress_mem_to_mem() decompresses a block in memory to another block in memory. */
752/* Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes written on success. */
753#define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1))
754size_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);
755
756/* 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. */
757/* Returns 1 on success or 0 on failure. */
758typedef int (*tinfl_put_buf_func_ptr)(const void *pBuf, int len, void *pUser);
759int 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);
760
761struct tinfl_decompressor_tag;
762typedef struct tinfl_decompressor_tag tinfl_decompressor;
763
764/* Allocate the tinfl_decompressor structure in C so that */
765/* non-C language bindings to tinfl_ API don't need to worry about */
766/* structure size and allocation mechanism. */
767
768tinfl_decompressor *tinfl_decompressor_alloc();
769void tinfl_decompressor_free(tinfl_decompressor *pDecomp);
770
771/* Max size of LZ dictionary. */
772#define TINFL_LZ_DICT_SIZE 32768
773
774/* Return status. */
775typedef enum {
776 /* 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 */
777 /* 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). */
778 /* If you call it again with no input you'll just get TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS again. */
779 TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS = -4,
780
781 /* 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.) */
782 TINFL_STATUS_BAD_PARAM = -3,
783
784 /* 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. */
785 TINFL_STATUS_ADLER32_MISMATCH = -2,
786
787 /* 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. */
788 TINFL_STATUS_FAILED = -1,
789
790 /* Any status code less than TINFL_STATUS_DONE must indicate a failure. */
791
792 /* 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 */
793 /* 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. */
794 TINFL_STATUS_DONE = 0,
795
796 /* 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 */
797 /* 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 */
798 /* proceed, so be sure to properly set the TINFL_FLAG_HAS_MORE_INPUT flag. */
799 TINFL_STATUS_NEEDS_MORE_INPUT = 1,
800
801 /* 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. */
802 /* 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 */
803 /* (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 */
804 /* so I may need to add some code to address this. */
805 TINFL_STATUS_HAS_MORE_OUTPUT = 2
806} tinfl_status;
807
808/* Initializes the decompressor to its initial state. */
809#define tinfl_init(r) \
810 do \
811 { \
812 (r)->m_state = 0; \
813 } \
814 MZ_MACRO_END
815#define tinfl_get_adler32(r) (r)->m_check_adler32
816
817/* 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. */
818/* 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. */
819tinfl_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);
820
821/* Internal/private bits follow. */
822enum
823{
824 TINFL_MAX_HUFF_TABLES = 3,
825 TINFL_MAX_HUFF_SYMBOLS_0 = 288,
826 TINFL_MAX_HUFF_SYMBOLS_1 = 32,
827 TINFL_MAX_HUFF_SYMBOLS_2 = 19,
828 TINFL_FAST_LOOKUP_BITS = 10,
829 TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS
830};
831
832typedef struct
833{
834 mz_uint8 m_code_size[TINFL_MAX_HUFF_SYMBOLS_0];
835 mz_int16 m_look_up[TINFL_FAST_LOOKUP_SIZE], m_tree[TINFL_MAX_HUFF_SYMBOLS_0 * 2];
836} tinfl_huff_table;
837
838#if MINIZ_HAS_64BIT_REGISTERS
839#define TINFL_USE_64BIT_BITBUF 1
840#else
841#define TINFL_USE_64BIT_BITBUF 0
842#endif
843
844#if TINFL_USE_64BIT_BITBUF
845typedef mz_uint64 tinfl_bit_buf_t;
846#define TINFL_BITBUF_SIZE (64)
847#else
848typedef mz_uint32 tinfl_bit_buf_t;
849#define TINFL_BITBUF_SIZE (32)
850#endif
851
852struct tinfl_decompressor_tag
853{
854 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];
855 tinfl_bit_buf_t m_bit_buf;
856 size_t m_dist_from_out_buf_start;
857 tinfl_huff_table m_tables[TINFL_MAX_HUFF_TABLES];
858 mz_uint8 m_raw_header[4], m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 + TINFL_MAX_HUFF_SYMBOLS_1 + 137];
859};
860
861
862
863#pragma once
864
865
866/* ------------------- ZIP archive reading/writing */
867
868#ifndef MINIZ_NO_ARCHIVE_APIS
869
870
871enum
872{
873 /* Note: These enums can be reduced as needed to save memory or stack space - they are pretty conservative. */
874 MZ_ZIP_MAX_IO_BUF_SIZE = 64 * 1024,
875 MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 512,
876 MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 512
877};
878
879typedef struct
880{
881 /* Central directory file index. */
882 mz_uint32 m_file_index;
883
884 /* 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. */
885 mz_uint64 m_central_dir_ofs;
886
887 /* These fields are copied directly from the zip's central dir. */
888 mz_uint16 m_version_made_by;
889 mz_uint16 m_version_needed;
890 mz_uint16 m_bit_flag;
891 mz_uint16 m_method;
892
893#ifndef MINIZ_NO_TIME
894 MZ_TIME_T m_time;
895#endif
896
897 /* CRC-32 of uncompressed data. */
898 mz_uint32 m_crc32;
899
900 /* File's compressed size. */
901 mz_uint64 m_comp_size;
902
903 /* 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. */
904 mz_uint64 m_uncomp_size;
905
906 /* Zip internal and external file attributes. */
907 mz_uint16 m_internal_attr;
908 mz_uint32 m_external_attr;
909
910 /* Entry's local header file offset in bytes. */
911 mz_uint64 m_local_header_ofs;
912
913 /* Size of comment in bytes. */
914 mz_uint32 m_comment_size;
915
916 /* MZ_TRUE if the entry appears to be a directory. */
917 mz_bool m_is_directory;
918
919 /* MZ_TRUE if the entry uses encryption/strong encryption (which miniz_zip doesn't support) */
920 mz_bool m_is_encrypted;
921
922 /* MZ_TRUE if the file is not encrypted, a patch file, and if it uses a compression method we support. */
923 mz_bool m_is_supported;
924
925 /* Filename. If string ends in '/' it's a subdirectory entry. */
926 /* Guaranteed to be zero terminated, may be truncated to fit. */
927 char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE];
928
929 /* Comment field. */
930 /* Guaranteed to be zero terminated, may be truncated to fit. */
931 char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE];
932
933} mz_zip_archive_file_stat;
934
935typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n);
936typedef size_t (*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n);
937typedef mz_bool (*mz_file_needs_keepalive)(void *pOpaque);
938
939struct mz_zip_internal_state_tag;
940typedef struct mz_zip_internal_state_tag mz_zip_internal_state;
941
942typedef enum {
943 MZ_ZIP_MODE_INVALID = 0,
944 MZ_ZIP_MODE_READING = 1,
945 MZ_ZIP_MODE_WRITING = 2,
946 MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3
947} mz_zip_mode;
948
949typedef enum {
950 MZ_ZIP_FLAG_CASE_SENSITIVE = 0x0100,
951 MZ_ZIP_FLAG_IGNORE_PATH = 0x0200,
952 MZ_ZIP_FLAG_COMPRESSED_DATA = 0x0400,
953 MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800,
954 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) */
955 MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY = 0x2000, /* validate the local headers, but don't decompress the entire file and check the crc32 */
956 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 */
957 MZ_ZIP_FLAG_WRITE_ALLOW_READING = 0x8000,
958 MZ_ZIP_FLAG_ASCII_FILENAME = 0x10000
959} mz_zip_flags;
960
961typedef enum {
962 MZ_ZIP_TYPE_INVALID = 0,
963 MZ_ZIP_TYPE_USER,
964 MZ_ZIP_TYPE_MEMORY,
965 MZ_ZIP_TYPE_HEAP,
966 MZ_ZIP_TYPE_FILE,
967 MZ_ZIP_TYPE_CFILE,
968 MZ_ZIP_TOTAL_TYPES
969} mz_zip_type;
970
971/* miniz error codes. Be sure to update mz_zip_get_error_string() if you add or modify this enum. */
972typedef enum {
973 MZ_ZIP_NO_ERROR = 0,
974 MZ_ZIP_UNDEFINED_ERROR,
975 MZ_ZIP_TOO_MANY_FILES,
976 MZ_ZIP_FILE_TOO_LARGE,
977 MZ_ZIP_UNSUPPORTED_METHOD,
978 MZ_ZIP_UNSUPPORTED_ENCRYPTION,
979 MZ_ZIP_UNSUPPORTED_FEATURE,
980 MZ_ZIP_FAILED_FINDING_CENTRAL_DIR,
981 MZ_ZIP_NOT_AN_ARCHIVE,
982 MZ_ZIP_INVALID_HEADER_OR_CORRUPTED,
983 MZ_ZIP_UNSUPPORTED_MULTIDISK,
984 MZ_ZIP_DECOMPRESSION_FAILED,
985 MZ_ZIP_COMPRESSION_FAILED,
986 MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE,
987 MZ_ZIP_CRC_CHECK_FAILED,
988 MZ_ZIP_UNSUPPORTED_CDIR_SIZE,
989 MZ_ZIP_ALLOC_FAILED,
990 MZ_ZIP_FILE_OPEN_FAILED,
991 MZ_ZIP_FILE_CREATE_FAILED,
992 MZ_ZIP_FILE_WRITE_FAILED,
993 MZ_ZIP_FILE_READ_FAILED,
994 MZ_ZIP_FILE_CLOSE_FAILED,
995 MZ_ZIP_FILE_SEEK_FAILED,
996 MZ_ZIP_FILE_STAT_FAILED,
997 MZ_ZIP_INVALID_PARAMETER,
998 MZ_ZIP_INVALID_FILENAME,
999 MZ_ZIP_BUF_TOO_SMALL,
1000 MZ_ZIP_INTERNAL_ERROR,
1001 MZ_ZIP_FILE_NOT_FOUND,
1002 MZ_ZIP_ARCHIVE_TOO_LARGE,
1003 MZ_ZIP_VALIDATION_FAILED,
1004 MZ_ZIP_WRITE_CALLBACK_FAILED,
1005 MZ_ZIP_TOTAL_ERRORS
1006} mz_zip_error;
1007
1008typedef struct
1009{
1010 mz_uint64 m_archive_size;
1011 mz_uint64 m_central_directory_file_ofs;
1012
1013 /* We only support up to UINT32_MAX files in zip64 mode. */
1014 mz_uint32 m_total_files;
1015 mz_zip_mode m_zip_mode;
1016 mz_zip_type m_zip_type;
1017 mz_zip_error m_last_error;
1018
1019 mz_uint64 m_file_offset_alignment;
1020
1021 mz_alloc_func m_pAlloc;
1022 mz_free_func m_pFree;
1023 mz_realloc_func m_pRealloc;
1024 void *m_pAlloc_opaque;
1025
1026 mz_file_read_func m_pRead;
1027 mz_file_write_func m_pWrite;
1028 mz_file_needs_keepalive m_pNeeds_keepalive;
1029 void *m_pIO_opaque;
1030
1031 mz_zip_internal_state *m_pState;
1032
1033} mz_zip_archive;
1034
1035typedef struct
1036{
1037 mz_zip_archive *pZip;
1038 mz_uint flags;
1039
1040 int status;
1041#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
1042 mz_uint file_crc32;
1043#endif
1044 mz_uint64 read_buf_size, read_buf_ofs, read_buf_avail, comp_remaining, out_buf_ofs, cur_file_ofs;
1045 mz_zip_archive_file_stat file_stat;
1046 void *pRead_buf;
1047 void *pWrite_buf;
1048
1049 size_t out_blk_remain;
1050
1051 tinfl_decompressor inflator;
1052
1053} mz_zip_reader_extract_iter_state;
1054
1055/* -------- ZIP reading */
1056
1057/* Inits a ZIP archive reader. */
1058/* These functions read and validate the archive's central directory. */
1059mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint flags);
1060
1061mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint flags);
1062
1063#ifndef MINIZ_NO_STDIO
1064/* Read a archive from a disk file. */
1065/* file_start_ofs is the file offset where the archive actually begins, or 0. */
1066/* 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. */
1067mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags);
1068mz_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);
1069
1070/* Read an archive from an already opened FILE, beginning at the current file position. */
1071/* 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. */
1072/* The FILE will NOT be closed when mz_zip_reader_end() is called. */
1073mz_bool mz_zip_reader_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint64 archive_size, mz_uint flags);
1074#endif
1075
1076/* Ends archive reading, freeing all allocations, and closing the input archive file if mz_zip_reader_init_file() was used. */
1077mz_bool mz_zip_reader_end(mz_zip_archive *pZip);
1078
1079/* -------- ZIP reading or writing */
1080
1081/* Clears a mz_zip_archive struct to all zeros. */
1082/* Important: This must be done before passing the struct to any mz_zip functions. */
1083void mz_zip_zero_struct(mz_zip_archive *pZip);
1084
1085mz_zip_mode mz_zip_get_mode(mz_zip_archive *pZip);
1086mz_zip_type mz_zip_get_type(mz_zip_archive *pZip);
1087
1088/* Returns the total number of files in the archive. */
1089mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip);
1090
1091mz_uint64 mz_zip_get_archive_size(mz_zip_archive *pZip);
1092mz_uint64 mz_zip_get_archive_file_start_offset(mz_zip_archive *pZip);
1093MZ_FILE *mz_zip_get_cfile(mz_zip_archive *pZip);
1094
1095/* Reads n bytes of raw archive data, starting at file offset file_ofs, to pBuf. */
1096size_t mz_zip_read_archive_data(mz_zip_archive *pZip, mz_uint64 file_ofs, void *pBuf, size_t n);
1097
1098/* All mz_zip funcs set the m_last_error field in the mz_zip_archive struct. These functions retrieve/manipulate this field. */
1099/* Note that the m_last_error functionality is not thread safe. */
1100mz_zip_error mz_zip_set_last_error(mz_zip_archive *pZip, mz_zip_error err_num);
1101mz_zip_error mz_zip_peek_last_error(mz_zip_archive *pZip);
1102mz_zip_error mz_zip_clear_last_error(mz_zip_archive *pZip);
1103mz_zip_error mz_zip_get_last_error(mz_zip_archive *pZip);
1104const char *mz_zip_get_error_string(mz_zip_error mz_err);
1105
1106/* MZ_TRUE if the archive file entry is a directory entry. */
1107mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index);
1108
1109/* MZ_TRUE if the file is encrypted/strong encrypted. */
1110mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index);
1111
1112/* MZ_TRUE if the compression method is supported, and the file is not encrypted, and the file is not a compressed patch file. */
1113mz_bool mz_zip_reader_is_file_supported(mz_zip_archive *pZip, mz_uint file_index);
1114
1115/* Retrieves the filename of an archive file entry. */
1116/* 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. */
1117mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size);
1118
1119/* Attempts to locates a file in the archive's central directory. */
1120/* Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH */
1121/* Returns -1 if the file cannot be found. */
1122int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags);
1123int mz_zip_reader_locate_file_v2(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags, mz_uint32 *file_index);
1124
1125/* Returns detailed information about an archive file entry. */
1126mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat);
1127
1128/* MZ_TRUE if the file is in zip64 format. */
1129/* 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. */
1130mz_bool mz_zip_is_zip64(mz_zip_archive *pZip);
1131
1132/* Returns the total central directory size in bytes. */
1133/* The current max supported size is <= MZ_UINT32_MAX. */
1134size_t mz_zip_get_central_dir_size(mz_zip_archive *pZip);
1135
1136/* Extracts a archive file to a memory buffer using no memory allocation. */
1137/* There must be at least enough room on the stack to store the inflator's state (~34KB or so). */
1138mz_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);
1139mz_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);
1140
1141/* Extracts a archive file to a memory buffer. */
1142mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags);
1143mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags);
1144
1145/* Extracts a archive file to a dynamically allocated heap buffer. */
1146/* The memory will be allocated via the mz_zip_archive's alloc/realloc functions. */
1147/* Returns NULL and sets the last error on failure. */
1148void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags);
1149void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags);
1150
1151/* Extracts a archive file using a callback function to output the file's data. */
1152mz_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);
1153mz_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);
1154
1155/* Extract a file iteratively */
1156mz_zip_reader_extract_iter_state* mz_zip_reader_extract_iter_new(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags);
1157mz_zip_reader_extract_iter_state* mz_zip_reader_extract_file_iter_new(mz_zip_archive *pZip, const char *pFilename, mz_uint flags);
1158size_t mz_zip_reader_extract_iter_read(mz_zip_reader_extract_iter_state* pState, void* pvBuf, size_t buf_size);
1159mz_bool mz_zip_reader_extract_iter_free(mz_zip_reader_extract_iter_state* pState);
1160
1161#ifndef MINIZ_NO_STDIO
1162/* Extracts a archive file to a disk file and sets its last accessed and modified times. */
1163/* This function only extracts files, not archive directory records. */
1164mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags);
1165mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags);
1166
1167/* Extracts a archive file starting at the current position in the destination FILE stream. */
1168mz_bool mz_zip_reader_extract_to_cfile(mz_zip_archive *pZip, mz_uint file_index, MZ_FILE *File, mz_uint flags);
1169mz_bool mz_zip_reader_extract_file_to_cfile(mz_zip_archive *pZip, const char *pArchive_filename, MZ_FILE *pFile, mz_uint flags);
1170#endif
1171
1172#if 0
1173/* TODO */
1174 typedef void *mz_zip_streaming_extract_state_ptr;
1175 mz_zip_streaming_extract_state_ptr mz_zip_streaming_extract_begin(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags);
1176 uint64_t mz_zip_streaming_extract_get_size(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState);
1177 uint64_t mz_zip_streaming_extract_get_cur_ofs(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState);
1178 mz_bool mz_zip_streaming_extract_seek(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, uint64_t new_ofs);
1179 size_t mz_zip_streaming_extract_read(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, void *pBuf, size_t buf_size);
1180 mz_bool mz_zip_streaming_extract_end(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState);
1181#endif
1182
1183/* 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. */
1184/* It also validates that each file can be successfully uncompressed unless the MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY is specified. */
1185mz_bool mz_zip_validate_file(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags);
1186
1187/* Validates an entire archive by calling mz_zip_validate_file() on each file. */
1188mz_bool mz_zip_validate_archive(mz_zip_archive *pZip, mz_uint flags);
1189
1190/* Misc utils/helpers, valid for ZIP reading or writing */
1191mz_bool mz_zip_validate_mem_archive(const void *pMem, size_t size, mz_uint flags, mz_zip_error *pErr);
1192mz_bool mz_zip_validate_file_archive(const char *pFilename, mz_uint flags, mz_zip_error *pErr);
1193
1194/* Universal end function - calls either mz_zip_reader_end() or mz_zip_writer_end(). */
1195mz_bool mz_zip_end(mz_zip_archive *pZip);
1196
1197/* -------- ZIP writing */
1198
1199#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS
1200
1201/* Inits a ZIP archive writer. */
1202/*Set pZip->m_pWrite (and pZip->m_pIO_opaque) before calling mz_zip_writer_init or mz_zip_writer_init_v2*/
1203/*The output is streamable, i.e. file_ofs in mz_file_write_func always increases only by n*/
1204mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size);
1205mz_bool mz_zip_writer_init_v2(mz_zip_archive *pZip, mz_uint64 existing_size, mz_uint flags);
1206
1207mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size);
1208mz_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);
1209
1210#ifndef MINIZ_NO_STDIO
1211mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning);
1212mz_bool mz_zip_writer_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning, mz_uint flags);
1213mz_bool mz_zip_writer_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint flags);
1214#endif
1215
1216/* Converts a ZIP archive reader object into a writer object, to allow efficient in-place file appends to occur on an existing archive. */
1217/* 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. */
1218/* 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). */
1219/* Finally, for archives opened using mz_zip_reader_init, the mz_zip_archive's user provided m_pWrite function cannot be NULL. */
1220/* Note: In-place archive modification is not recommended unless you know what you're doing, because if execution stops or something goes wrong before */
1221/* the archive is finalized the file's central directory will be hosed. */
1222mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename);
1223mz_bool mz_zip_writer_init_from_reader_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags);
1224
1225/* Adds the contents of a memory buffer to an archive. These functions record the current local time into the archive. */
1226/* To add a directory entry, call this method with an archive name ending in a forwardslash with an empty buffer. */
1227/* 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. */
1228mz_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);
1229
1230/* Like mz_zip_writer_add_mem(), except you can specify a file comment field, and optionally supply the function with already compressed data. */
1231/* uncomp_size/uncomp_crc32 are only used if the MZ_ZIP_FLAG_COMPRESSED_DATA flag is specified. */
1232mz_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,
1233 mz_uint64 uncomp_size, mz_uint32 uncomp_crc32);
1234
1235mz_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,
1236 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,
1237 const char *user_extra_data_central, mz_uint user_extra_data_central_len);
1238
1239#ifndef MINIZ_NO_STDIO
1240/* Adds the contents of a disk file to an archive. This function also records the disk file's modified time into the archive. */
1241/* 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. */
1242mz_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);
1243
1244/* Like mz_zip_writer_add_file(), except the file data is read from the specified FILE stream. */
1245mz_bool mz_zip_writer_add_cfile(mz_zip_archive *pZip, const char *pArchive_name, MZ_FILE *pSrc_file, mz_uint64 size_to_add,
1246 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,
1247 const char *user_extra_data_central, mz_uint user_extra_data_central_len);
1248#endif
1249
1250/* Adds a file to an archive by fully cloning the data from another archive. */
1251/* 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. */
1252mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint src_file_index);
1253
1254/* Finalizes the archive by writing the central directory records followed by the end of central directory record. */
1255/* After an archive is finalized, the only valid call on the mz_zip_archive struct is mz_zip_writer_end(). */
1256/* An archive must be manually finalized by calling this function for it to be valid. */
1257mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip);
1258
1259/* Finalizes a heap archive, returning a poiner to the heap block and its size. */
1260/* The heap block will be allocated using the mz_zip_archive's alloc/realloc callbacks. */
1261mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **ppBuf, size_t *pSize);
1262
1263/* Ends archive writing, freeing all allocations, and closing the output file if mz_zip_writer_init_file() was used. */
1264/* Note for the archive to be valid, it *must* have been finalized before ending (this function will not do it for you). */
1265mz_bool mz_zip_writer_end(mz_zip_archive *pZip);
1266
1267/* -------- Misc. high-level helper functions: */
1268
1269/* mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) appends a memory blob to a ZIP archive. */
1270/* 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). */
1271/* 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. */
1272/* 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. */
1273mz_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);
1274mz_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);
1275
1276/* Reads a single file from an archive into a heap block. */
1277/* If pComment is not NULL, only the file with the specified comment will be extracted. */
1278/* Returns NULL on failure. */
1279void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint flags);
1280void *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);
1281
1282#endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS */
1283
1284
1285
1286#endif /* MINIZ_NO_ARCHIVE_APIS */
1287
1288} // namespace duckdb_miniz
1289