From: Thomas Debesse Date: Tue, 25 Apr 2017 23:02:51 +0000 (+0200) Subject: do not copypaste zlib X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=3935875f885f1fa9e506a86e28c0fa41f2ad98c8;p=xonotic%2Fnetradiant.git do not copypaste zlib unzip.c contains many bits from an older zlib which mismatches with newer zlib loaded by libpng. This fix just make unzip.c relying on zlib like libpng does, without copypasting it. Thanks to `Ishq who figured out the issue. --- diff --git a/tools/quake3/common/unzip.c b/tools/quake3/common/unzip.c index f833a34d..f5ee82be 100644 --- a/tools/quake3/common/unzip.c +++ b/tools/quake3/common/unzip.c @@ -76,885 +76,6 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -/* for more info about .ZIP format, see - ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip - PkWare has also a specification at : - ftp://ftp.pkware.com/probdesc.zip */ - -/* zlib.h -- interface of the 'zlib' general purpose compression library - version 1.1.3, July 9th, 1998 - - Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. - - Jean-loup Gailly Mark Adler - jloup@gzip.org madler@alumni.caltech.edu - - - The data format used by the zlib library is described by RFCs (Request for - Comments) 1950 to 1952 in the files ftp://ds.internic.net/rfc/rfc1950.txt - (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format). -*/ - -/* zconf.h -- configuration of the zlib compression library - * Copyright (C) 1995-1998 Jean-loup Gailly. - * For conditions of distribution and use, see copyright notice in zlib.h - */ - - -#ifndef _ZCONF_H -#define _ZCONF_H - -/* Maximum value for memLevel in deflateInit2 */ -#ifndef MAX_MEM_LEVEL -# ifdef MAXSEG_64K -# define MAX_MEM_LEVEL 8 -# else -# define MAX_MEM_LEVEL 9 -# endif -#endif - -/* Maximum value for windowBits in deflateInit2 and inflateInit2. - * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files - * created by gzip. (Files created by minigzip can still be extracted by - * gzip.) - */ -#ifndef MAX_WBITS -# define MAX_WBITS 15 /* 32K LZ77 window */ -#endif - -/* The memory requirements for deflate are (in bytes): - (1 << (windowBits+2)) + (1 << (memLevel+9)) - that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) - plus a few kilobytes for small objects. For example, if you want to reduce - the default memory requirements from 256K to 128K, compile with - make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" - Of course this will generally degrade compression (there's no free lunch). - - The memory requirements for inflate are (in bytes) 1 << windowBits - that is, 32K for windowBits=15 (default value) plus a few kilobytes - for small objects. -*/ - - /* Type declarations */ - -#ifndef OF /* function prototypes */ -#define OF(args) args -#endif - -typedef unsigned char Byte; /* 8 bits */ -typedef unsigned int uInt; /* 16 bits or more */ -typedef unsigned long uLong; /* 32 bits or more */ -typedef Byte *voidp; - -#ifndef SEEK_SET -# define SEEK_SET 0 /* Seek from beginning of file. */ -# define SEEK_CUR 1 /* Seek from current position. */ -# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ -#endif - -#endif /* _ZCONF_H */ - -#define ZLIB_VERSION "1.1.3" - -/* - The 'zlib' compression library provides in-memory compression and - decompression functions, including integrity checks of the uncompressed - data. This version of the library supports only one compression method - (deflation) but other algorithms will be added later and will have the same - stream interface. - - Compression can be done in a single step if the buffers are large - enough (for example if an input file is mmap'ed), or can be done by - repeated calls of the compression function. In the latter case, the - application must provide more input and/or consume the output - (providing more output space) before each call. - - The library also supports reading and writing files in gzip (.gz) format - with an interface similar to that of stdio. - - The library does not install any signal handler. The decoder checks - the consistency of the compressed data, so the library should never - crash even in case of corrupted input. -*/ - -/* - The application must update next_in and avail_in when avail_in has - dropped to zero. It must update next_out and avail_out when avail_out - has dropped to zero. The application must initialize zalloc, zfree and - opaque before calling the init function. All other fields are set by the - compression library and must not be updated by the application. - - The opaque value provided by the application will be passed as the first - parameter for calls of zalloc and zfree. This can be useful for custom - memory management. The compression library attaches no meaning to the - opaque value. - - zalloc must return Z_NULL if there is not enough memory for the object. - If zlib is used in a multi-threaded application, zalloc and zfree must be - thread safe. - - On 16-bit systems, the functions zalloc and zfree must be able to allocate - exactly 65536 bytes, but will not be required to allocate more than this - if the symbol MAXSEG_64K is defined (see zconf.h). WARNING: On MSDOS, - pointers returned by zalloc for objects of exactly 65536 bytes *must* - have their offset normalized to zero. The default allocation function - provided by this library ensures this (see zutil.c). To reduce memory - requirements and avoid any allocation of 64K objects, at the expense of - compression ratio, compile the library with -DMAX_WBITS=14 (see zconf.h). - - The fields total_in and total_out can be used for statistics or - progress reports. After compression, total_in holds the total size of - the uncompressed data and may be saved for use in the decompressor - (particularly if the decompressor wants to decompress everything in - a single step). -*/ - - /* constants */ - -#define Z_NO_FLUSH 0 -#define Z_PARTIAL_FLUSH 1 /* will be removed, use Z_SYNC_FLUSH instead */ -#define Z_SYNC_FLUSH 2 -#define Z_FULL_FLUSH 3 -#define Z_FINISH 4 -/* Allowed flush values; see deflate() below for details */ - -#define Z_OK 0 -#define Z_STREAM_END 1 -#define Z_NEED_DICT 2 -#define Z_ERRNO (-1) -#define Z_STREAM_ERROR (-2) -#define Z_DATA_ERROR (-3) -#define Z_MEM_ERROR (-4) -#define Z_BUF_ERROR (-5) -#define Z_VERSION_ERROR (-6) -/* Return codes for the compression/decompression functions. Negative - * values are errors, positive values are used for special but normal events. - */ - -#define Z_NO_COMPRESSION 0 -#define Z_BEST_SPEED 1 -#define Z_BEST_COMPRESSION 9 -#define Z_DEFAULT_COMPRESSION (-1) -/* compression levels */ - -#define Z_FILTERED 1 -#define Z_HUFFMAN_ONLY 2 -#define Z_DEFAULT_STRATEGY 0 -/* compression strategy; see deflateInit2() below for details */ - -#define Z_BINARY 0 -#define Z_ASCII 1 -#define Z_UNKNOWN 2 -/* Possible values of the data_type field */ - -#define Z_DEFLATED 8 -/* The deflate compression method (the only one supported in this version) */ - -#define Z_NULL 0 /* for initializing zalloc, zfree, opaque */ - -#define zlib_version zlibVersion() -/* for compatibility with versions < 1.0.2 */ - - /* basic functions */ - -const char * zlibVersion OF((void)); -/* The application can compare zlibVersion and ZLIB_VERSION for consistency. - If the first character differs, the library code actually used is - not compatible with the zlib.h header file used by the application. - This check is automatically made by deflateInit and inflateInit. - */ - -/* -int deflateInit OF((z_streamp strm, int level)); - - Initializes the internal stream state for compression. The fields - zalloc, zfree and opaque must be initialized before by the caller. - If zalloc and zfree are set to Z_NULL, deflateInit updates them to - use default allocation functions. - - The compression level must be Z_DEFAULT_COMPRESSION, or between 0 and 9: - 1 gives best speed, 9 gives best compression, 0 gives no compression at - all (the input data is simply copied a block at a time). - Z_DEFAULT_COMPRESSION requests a default compromise between speed and - compression (currently equivalent to level 6). - - deflateInit returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if level is not a valid compression level, - Z_VERSION_ERROR if the zlib library version (zlib_version) is incompatible - with the version assumed by the caller (ZLIB_VERSION). - msg is set to null if there is no error message. deflateInit does not - perform any compression: this will be done by deflate(). -*/ - - -int deflate OF((z_streamp strm, int flush)); -/* - deflate compresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may introduce some - output latency (reading input without producing any output) except when - forced to flush. - - The detailed semantics are as follows. deflate performs one or both of the - following actions: - - - Compress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in and avail_in are updated and - processing will resume at this point for the next call of deflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. This action is forced if the parameter flush is non zero. - Forcing flush frequently degrades the compression ratio, so this parameter - should be set only when necessary (in interactive applications). - Some output may be provided even if flush is not set. - - Before the call of deflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating avail_in or avail_out accordingly; avail_out - should never be zero before the call. The application can consume the - compressed output when it wants, for example when the output buffer is full - (avail_out == 0), or after each call of deflate(). If deflate returns Z_OK - and with zero avail_out, it must be called again after making room in the - output buffer because there might be more output pending. - - If the parameter flush is set to Z_SYNC_FLUSH, all pending output is - flushed to the output buffer and the output is aligned on a byte boundary, so - that the decompressor can get all input data available so far. (In particular - avail_in is zero after the call if enough output space has been provided - before the call.) Flushing may degrade compression for some compression - algorithms and so it should be used only when necessary. - - If flush is set to Z_FULL_FLUSH, all output is flushed as with - Z_SYNC_FLUSH, and the compression state is reset so that decompression can - restart from this point if previous compressed data has been damaged or if - random access is desired. Using Z_FULL_FLUSH too often can seriously degrade - the compression. - - If deflate returns with avail_out == 0, this function must be called again - with the same value of the flush parameter and more output space (updated - avail_out), until the flush is complete (deflate returns with non-zero - avail_out). - - If the parameter flush is set to Z_FINISH, pending input is processed, - pending output is flushed and deflate returns with Z_STREAM_END if there - was enough output space; if deflate returns with Z_OK, this function must be - called again with Z_FINISH and more output space (updated avail_out) but no - more input data, until it returns with Z_STREAM_END or an error. After - deflate has returned Z_STREAM_END, the only possible operations on the - stream are deflateReset or deflateEnd. - - Z_FINISH can be used immediately after deflateInit if all the compression - is to be done in a single step. In this case, avail_out must be at least - 0.1% larger than avail_in plus 12 bytes. If deflate does not return - Z_STREAM_END, then it must be called again as described above. - - deflate() sets strm->adler to the adler32 checksum of all input read - so (that is, total_in bytes). - - deflate() may update data_type if it can make a good guess about - the input data type (Z_ASCII or Z_BINARY). In doubt, the data is considered - binary. This field is only for information purposes and does not affect - the compression algorithm in any manner. - - deflate() returns Z_OK if some progress has been made (more input - processed or more output produced), Z_STREAM_END if all input has been - consumed and all output has been produced (only when flush is set to - Z_FINISH), Z_STREAM_ERROR if the stream state was inconsistent (for example - if next_in or next_out was NULL), Z_BUF_ERROR if no progress is possible - (for example avail_in or avail_out was zero). -*/ - - -int deflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - deflateEnd returns Z_OK if success, Z_STREAM_ERROR if the - stream state was inconsistent, Z_DATA_ERROR if the stream was freed - prematurely (some input or output was discarded). In the error case, - msg may be set but then points to a static string (which must not be - deallocated). -*/ - - -/* -int inflateInit OF((z_streamp strm)); - - Initializes the internal stream state for decompression. The fields - next_in, avail_in, zalloc, zfree and opaque must be initialized before by - the caller. If next_in is not Z_NULL and avail_in is large enough (the exact - value depends on the compression method), inflateInit determines the - compression method from the zlib header and allocates all data structures - accordingly; otherwise the allocation will be deferred to the first call of - inflate. If zalloc and zfree are set to Z_NULL, inflateInit updates them to - use default allocation functions. - - inflateInit returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_VERSION_ERROR if the zlib library version is incompatible with the - version assumed by the caller. msg is set to null if there is no error - message. inflateInit does not perform any decompression apart from reading - the zlib header if present: this will be done by inflate(). (So next_in and - avail_in may be modified, but next_out and avail_out are unchanged.) -*/ - - -int inflate OF((z_streamp strm, int flush)); -/* - inflate decompresses as much data as possible, and stops when the input - buffer becomes empty or the output buffer becomes full. It may some - introduce some output latency (reading input without producing any output) - except when forced to flush. - - The detailed semantics are as follows. inflate performs one or both of the - following actions: - - - Decompress more input starting at next_in and update next_in and avail_in - accordingly. If not all input can be processed (because there is not - enough room in the output buffer), next_in is updated and processing - will resume at this point for the next call of inflate(). - - - Provide more output starting at next_out and update next_out and avail_out - accordingly. inflate() provides as much output as possible, until there - is no more input data or no more space in the output buffer (see below - about the flush parameter). - - Before the call of inflate(), the application should ensure that at least - one of the actions is possible, by providing more input and/or consuming - more output, and updating the next_* and avail_* values accordingly. - The application can consume the uncompressed output when it wants, for - example when the output buffer is full (avail_out == 0), or after each - call of inflate(). If inflate returns Z_OK and with zero avail_out, it - must be called again after making room in the output buffer because there - might be more output pending. - - If the parameter flush is set to Z_SYNC_FLUSH, inflate flushes as much - output as possible to the output buffer. The flushing behavior of inflate is - not specified for values of the flush parameter other than Z_SYNC_FLUSH - and Z_FINISH, but the current implementation actually flushes as much output - as possible anyway. - - inflate() should normally be called until it returns Z_STREAM_END or an - error. However if all decompression is to be performed in a single step - (a single call of inflate), the parameter flush should be set to - Z_FINISH. In this case all pending input is processed and all pending - output is flushed; avail_out must be large enough to hold all the - uncompressed data. (The size of the uncompressed data may have been saved - by the compressor for this purpose.) The next operation on this stream must - be inflateEnd to deallocate the decompression state. The use of Z_FINISH - is never required, but can be used to inform inflate that a faster routine - may be used for the single inflate() call. - - If a preset dictionary is needed at this point (see inflateSetDictionary - below), inflate sets strm-adler to the adler32 checksum of the - dictionary chosen by the compressor and returns Z_NEED_DICT; otherwise - it sets strm->adler to the adler32 checksum of all output produced - so (that is, total_out bytes) and returns Z_OK, Z_STREAM_END or - an error code as described below. At the end of the stream, inflate() - checks that its computed adler32 checksum is equal to that saved by the - compressor and returns Z_STREAM_END only if the checksum is correct. - - inflate() returns Z_OK if some progress has been made (more input processed - or more output produced), Z_STREAM_END if the end of the compressed data has - been reached and all uncompressed output has been produced, Z_NEED_DICT if a - preset dictionary is needed at this point, Z_DATA_ERROR if the input data was - corrupted (input stream not conforming to the zlib format or incorrect - adler32 checksum), Z_STREAM_ERROR if the stream structure was inconsistent - (for example if next_in or next_out was NULL), Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if no progress is possible or if there was not - enough room in the output buffer when Z_FINISH is used. In the Z_DATA_ERROR - case, the application may then call inflateSync to look for a good - compression block. -*/ - - -int inflateEnd OF((z_streamp strm)); -/* - All dynamically allocated data structures for this stream are freed. - This function discards any unprocessed input and does not flush any - pending output. - - inflateEnd returns Z_OK if success, Z_STREAM_ERROR if the stream state - was inconsistent. In the error case, msg may be set but then points to a - static string (which must not be deallocated). -*/ - - /* Advanced functions */ - -/* - The following functions are needed only in some special applications. -*/ - -/* -int deflateInit2 OF((z_streamp strm, - int level, - int method, - int windowBits, - int memLevel, - int strategy)); - - This is another version of deflateInit with more compression options. The - fields next_in, zalloc, zfree and opaque must be initialized before by - the caller. - - The method parameter is the compression method. It must be Z_DEFLATED in - this version of the library. - - The windowBits parameter is the base two logarithm of the window size - (the size of the history buffer). It should be in the range 8..15 for this - version of the library. Larger values of this parameter result in better - compression at the expense of memory usage. The default value is 15 if - deflateInit is used instead. - - The memLevel parameter specifies how much memory should be allocated - for the internal compression state. memLevel=1 uses minimum memory but - is slow and reduces compression ratio; memLevel=9 uses maximum memory - for optimal speed. The default value is 8. See zconf.h for total memory - usage as a function of windowBits and memLevel. - - The strategy parameter is used to tune the compression algorithm. Use the - value Z_DEFAULT_STRATEGY for normal data, Z_FILTERED for data produced by a - filter (or predictor), or Z_HUFFMAN_ONLY to force Huffman encoding only (no - string match). Filtered data consists mostly of small values with a - somewhat random distribution. In this case, the compression algorithm is - tuned to compress them better. The effect of Z_FILTERED is to force more - Huffman coding and less string matching; it is somewhat intermediate - between Z_DEFAULT and Z_HUFFMAN_ONLY. The strategy parameter only affects - the compression ratio but not the correctness of the compressed output even - if it is not set appropriately. - - deflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as an invalid - method). msg is set to null if there is no error message. deflateInit2 does - not perform any compression: this will be done by deflate(). -*/ - -int deflateSetDictionary OF((z_streamp strm, - const Byte *dictionary, - uInt dictLength)); -/* - Initializes the compression dictionary from the given byte sequence - without producing any compressed output. This function must be called - immediately after deflateInit, deflateInit2 or deflateReset, before any - call of deflate. The compressor and decompressor must use exactly the same - dictionary (see inflateSetDictionary). - - The dictionary should consist of strings (byte sequences) that are likely - to be encountered later in the data to be compressed, with the most commonly - used strings preferably put towards the end of the dictionary. Using a - dictionary is most useful when the data to be compressed is short and can be - predicted with good accuracy; the data can then be compressed better than - with the default empty dictionary. - - Depending on the size of the compression data structures selected by - deflateInit or deflateInit2, a part of the dictionary may in effect be - discarded, for example if the dictionary is larger than the window size in - deflate or deflate2. Thus the strings most likely to be useful should be - put at the end of the dictionary, not at the front. - - Upon return of this function, strm->adler is set to the Adler32 value - of the dictionary; the decompressor may later use this value to determine - which dictionary has been used by the compressor. (The Adler32 value - applies to the whole dictionary even if only a subset of the dictionary is - actually used by the compressor.) - - deflateSetDictionary returns Z_OK if success, or Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent (for example if deflate has already been called for this stream - or if the compression method is bsort). deflateSetDictionary does not - perform any compression: this will be done by deflate(). -*/ - -int deflateCopy OF((z_streamp dest, - z_streamp source)); -/* - Sets the destination stream as a complete copy of the source stream. - - This function can be useful when several compression strategies will be - tried, for example when there are several ways of pre-processing the input - data with a filter. The streams that will be discarded should then be freed - by calling deflateEnd. Note that deflateCopy duplicates the internal - compression state which can be quite large, so this strategy is slow and - can consume lots of memory. - - deflateCopy returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_STREAM_ERROR if the source stream state was inconsistent - (such as zalloc being NULL). msg is left unchanged in both source and - destination. -*/ - -int deflateReset OF((z_streamp strm)); -/* - This function is equivalent to deflateEnd followed by deflateInit, - but does not free and reallocate all the internal compression state. - The stream will keep the same compression level and any other attributes - that may have been set by deflateInit2. - - deflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - -int deflateParams OF((z_streamp strm, - int level, - int strategy)); -/* - Dynamically update the compression level and compression strategy. The - interpretation of level and strategy is as in deflateInit2. This can be - used to switch between compression and straight copy of the input data, or - to switch to a different kind of input data requiring a different - strategy. If the compression level is changed, the input available so far - is compressed with the old level (and may be flushed); the new level will - take effect only at the next call of deflate(). - - Before the call of deflateParams, the stream state must be set as for - a call of deflate(), since the currently available input may have to - be compressed and flushed. In particular, strm->avail_out must be non-zero. - - deflateParams returns Z_OK if success, Z_STREAM_ERROR if the source - stream state was inconsistent or if a parameter was invalid, Z_BUF_ERROR - if strm->avail_out was zero. -*/ - -/* -int inflateInit2 OF((z_streamp strm, - int windowBits)); - - This is another version of inflateInit with an extra parameter. The - fields next_in, avail_in, zalloc, zfree and opaque must be initialized - before by the caller. - - The windowBits parameter is the base two logarithm of the maximum window - size (the size of the history buffer). It should be in the range 8..15 for - this version of the library. The default value is 15 if inflateInit is used - instead. If a compressed stream with a larger window size is given as - input, inflate() will return with the error code Z_DATA_ERROR instead of - trying to allocate a larger window. - - inflateInit2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_STREAM_ERROR if a parameter is invalid (such as a negative - memLevel). msg is set to null if there is no error message. inflateInit2 - does not perform any decompression apart from reading the zlib header if - present: this will be done by inflate(). (So next_in and avail_in may be - modified, but next_out and avail_out are unchanged.) -*/ - -int inflateSetDictionary OF((z_streamp strm, - const Byte *dictionary, - uInt dictLength)); -/* - Initializes the decompression dictionary from the given uncompressed byte - sequence. This function must be called immediately after a call of inflate - if this call returned Z_NEED_DICT. The dictionary chosen by the compressor - can be determined from the Adler32 value returned by this call of - inflate. The compressor and decompressor must use exactly the same - dictionary (see deflateSetDictionary). - - inflateSetDictionary returns Z_OK if success, Z_STREAM_ERROR if a - parameter is invalid (such as NULL dictionary) or the stream state is - inconsistent, Z_DATA_ERROR if the given dictionary doesn't match the - expected one (incorrect Adler32 value). inflateSetDictionary does not - perform any decompression: this will be done by subsequent calls of - inflate(). -*/ - -int inflateSync OF((z_streamp strm)); -/* - Skips invalid compressed data until a full flush point (see above the - description of deflate with Z_FULL_FLUSH) can be found, or until all - available input is skipped. No output is provided. - - inflateSync returns Z_OK if a full flush point has been found, Z_BUF_ERROR - if no more input was provided, Z_DATA_ERROR if no flush point has been found, - or Z_STREAM_ERROR if the stream structure was inconsistent. In the success - case, the application may save the current current value of total_in which - indicates where valid compressed data was found. In the error case, the - application may repeatedly call inflateSync, providing more input each time, - until success or end of the input data. -*/ - -int inflateReset OF((z_streamp strm)); -/* - This function is equivalent to inflateEnd followed by inflateInit, - but does not free and reallocate all the internal decompression state. - The stream will keep attributes that may have been set by inflateInit2. - - inflateReset returns Z_OK if success, or Z_STREAM_ERROR if the source - stream state was inconsistent (such as zalloc or state being NULL). -*/ - - - /* utility functions */ - -/* - The following utility functions are implemented on top of the - basic stream-oriented functions. To simplify the interface, some - default options are assumed (compression level and memory usage, - standard memory allocation functions). The source code of these - utility functions can easily be modified if you need special options. -*/ - -int compress OF((Byte *dest, uLong *destLen, - const Byte *source, uLong sourceLen)); -/* - Compresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be at least 0.1% larger than - sourceLen plus 12 bytes. Upon exit, destLen is the actual size of the - compressed buffer. - This function can be used to compress a whole file at once if the - input file is mmap'ed. - compress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer. -*/ - -int compress2 OF((Byte *dest, uLong *destLen, - const Byte *source, uLong sourceLen, - int level)); -/* - Compresses the source buffer into the destination buffer. The level - parameter has the same meaning as in deflateInit. sourceLen is the byte - length of the source buffer. Upon entry, destLen is the total size of the - destination buffer, which must be at least 0.1% larger than sourceLen plus - 12 bytes. Upon exit, destLen is the actual size of the compressed buffer. - - compress2 returns Z_OK if success, Z_MEM_ERROR if there was not enough - memory, Z_BUF_ERROR if there was not enough room in the output buffer, - Z_STREAM_ERROR if the level parameter is invalid. -*/ - -int uncompress OF((Byte *dest, uLong *destLen, - const Byte *source, uLong sourceLen)); -/* - Decompresses the source buffer into the destination buffer. sourceLen is - the byte length of the source buffer. Upon entry, destLen is the total - size of the destination buffer, which must be large enough to hold the - entire uncompressed data. (The size of the uncompressed data must have - been saved previously by the compressor and transmitted to the decompressor - by some mechanism outside the scope of this compression library.) - Upon exit, destLen is the actual size of the compressed buffer. - This function can be used to decompress a whole file at once if the - input file is mmap'ed. - - uncompress returns Z_OK if success, Z_MEM_ERROR if there was not - enough memory, Z_BUF_ERROR if there was not enough room in the output - buffer, or Z_DATA_ERROR if the input data was corrupted. -*/ - - -typedef voidp gzFile; - -gzFile gzopen OF((const char *path, const char *mode)); -/* - Opens a gzip (.gz) file for reading or writing. The mode parameter - is as in fopen ("rb" or "wb") but can also include a compression level - ("wb9") or a strategy: 'f' for filtered data as in "wb6f", 'h' for - Huffman only compression as in "wb1h". (See the description - of deflateInit2 for more information about the strategy parameter.) - - gzopen can be used to read a file which is not in gzip format; in this - case gzread will directly read from the file without decompression. - - gzopen returns NULL if the file could not be opened or if there was - insufficient memory to allocate the (de)compression state; errno - can be checked to distinguish the two cases (if errno is zero, the - zlib error is Z_MEM_ERROR). */ - -gzFile gzdopen OF((int fd, const char *mode)); -/* - gzdopen() associates a gzFile with the file descriptor fd. File - descriptors are obtained from calls like open, dup, creat, pipe or - fileno (in the file has been previously opened with fopen). - The mode parameter is as in gzopen. - The next call of gzclose on the returned gzFile will also close the - file descriptor fd, just like fclose(fdopen(fd), mode) closes the file - descriptor fd. If you want to keep fd open, use gzdopen(dup(fd), mode). - gzdopen returns NULL if there was insufficient memory to allocate - the (de)compression state. -*/ - -int gzsetparams OF((gzFile file, int level, int strategy)); -/* - Dynamically update the compression level or strategy. See the description - of deflateInit2 for the meaning of these parameters. - gzsetparams returns Z_OK if success, or Z_STREAM_ERROR if the file was not - opened for writing. -*/ - -int gzread OF((gzFile file, voidp buf, unsigned len)); -/* - Reads the given number of uncompressed bytes from the compressed file. - If the input file was not in gzip format, gzread copies the given number - of bytes into the buffer. - gzread returns the number of uncompressed bytes actually read (0 for - end of file, -1 for error). */ - -int gzwrite OF((gzFile file, - const voidp buf, unsigned len)); -/* - Writes the given number of uncompressed bytes into the compressed file. - gzwrite returns the number of uncompressed bytes actually written - (0 in case of error). -*/ - -int gzprintf OF((gzFile file, const char *format, ...)); -/* - Converts, formats, and writes the args to the compressed file under - control of the format string, as in fprintf. gzprintf returns the number of - uncompressed bytes actually written (0 in case of error). -*/ - -int gzputs OF((gzFile file, const char *s)); -/* - Writes the given null-terminated string to the compressed file, excluding - the terminating null character. - gzputs returns the number of characters written, or -1 in case of error. -*/ - -char * gzgets OF((gzFile file, char *buf, int len)); -/* - Reads bytes from the compressed file until len-1 characters are read, or - a newline character is read and transferred to buf, or an end-of-file - condition is encountered. The string is then terminated with a null - character. - gzgets returns buf, or Z_NULL in case of error. -*/ - -int gzputc OF((gzFile file, int c)); -/* - Writes c, converted to an unsigned char, into the compressed file. - gzputc returns the value that was written, or -1 in case of error. -*/ - -int gzgetc OF((gzFile file)); -/* - Reads one byte from the compressed file. gzgetc returns this byte - or -1 in case of end of file or error. -*/ - -int gzflush OF((gzFile file, int flush)); -/* - Flushes all pending output into the compressed file. The parameter - flush is as in the deflate() function. The return value is the zlib - error number (see function gzerror below). gzflush returns Z_OK if - the flush parameter is Z_FINISH and all output could be flushed. - gzflush should be called only when strictly necessary because it can - degrade compression. -*/ - -long gzseek OF((gzFile file, - long offset, int whence)); -/* - Sets the starting position for the next gzread or gzwrite on the - given compressed file. The offset represents a number of bytes in the - uncompressed data stream. The whence parameter is defined as in lseek(2); - the value SEEK_END is not supported. - If the file is opened for reading, this function is emulated but can be - extremely slow. If the file is opened for writing, only forward seeks are - supported; gzseek then compresses a sequence of zeroes up to the new - starting position. - - gzseek returns the resulting offset location as measured in bytes from - the beginning of the uncompressed stream, or -1 in case of error, in - particular if the file is opened for writing and the new starting position - would be before the current position. -*/ - -int gzrewind OF((gzFile file)); -/* - Rewinds the given file. This function is supported only for reading. - - gzrewind(file) is equivalent to (int)gzseek(file, 0L, SEEK_SET) -*/ - -long gztell OF((gzFile file)); -/* - Returns the starting position for the next gzread or gzwrite on the - given compressed file. This position represents a number of bytes in the - uncompressed data stream. - - gztell(file) is equivalent to gzseek(file, 0L, SEEK_CUR) -*/ - -int gzeof OF((gzFile file)); -/* - Returns 1 when EOF has previously been detected reading the given - input stream, otherwise zero. -*/ - -int gzclose OF((gzFile file)); -/* - Flushes all pending output if necessary, closes the compressed file - and deallocates all the (de)compression state. The return value is the zlib - error number (see function gzerror below). -*/ - -const char * gzerror OF((gzFile file, int *errnum)); -/* - Returns the error message for the last error which occurred on the - given compressed file. errnum is set to zlib error number. If an - error occurred in the file system and not in the compression library, - errnum is set to Z_ERRNO and the application may consult errno - to get the exact error code. -*/ - - /* checksum functions */ - -/* - These functions are not related to compression but are exported - anyway because they might be useful in applications using the - compression library. -*/ - -uLong adler32 OF((uLong adler, const Byte *buf, uInt len)); - -/* - Update a running Adler-32 checksum with the bytes buf[0..len-1] and - return the updated checksum. If buf is NULL, this function returns - the required initial value for the checksum. - An Adler-32 checksum is almost as reliable as a CRC32 but can be computed - much faster. Usage example: - - uLong adler = adler32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - adler = adler32(adler, buffer, length); - } - if (adler != original_adler) error(); -*/ - -uLong crc32 OF((uLong crc, const Byte *buf, uInt len)); -/* - Update a running crc with the bytes buf[0..len-1] and return the updated - crc. If buf is NULL, this function returns the required initial value - for the crc. Pre- and post-conditioning (one's complement) is performed - within this function so it shouldn't be done by the application. - Usage example: - - uLong crc = crc32(0L, Z_NULL, 0); - - while (read_buffer(buffer, length) != EOF) { - crc = crc32(crc, buffer, length); - } - if (crc != original_crc) error(); -*/ // private stuff to not include cmdlib.h /* @@ -1085,95 +206,6 @@ float __LittleFloat (float l) - /* various hacks, don't look :) */ - -/* deflateInit and inflateInit are macros to allow checking the zlib version - * and the compiler's view of z_stream: - */ -int deflateInit_ OF((z_streamp strm, int level, - const char *version, int stream_size)); -int inflateInit_ OF((z_streamp strm, - const char *version, int stream_size)); -int deflateInit2_ OF((z_streamp strm, int level, int method, - int windowBits, int memLevel, - int strategy, const char *version, - int stream_size)); -int inflateInit2_ OF((z_streamp strm, int windowBits, - const char *version, int stream_size)); -#define deflateInit(strm, level) \ - deflateInit_((strm), (level), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit(strm) \ - inflateInit_((strm), ZLIB_VERSION, sizeof(z_stream)) -#define deflateInit2(strm, level, method, windowBits, memLevel, strategy) \ - deflateInit2_((strm),(level),(method),(windowBits),(memLevel),\ - (strategy), ZLIB_VERSION, sizeof(z_stream)) -#define inflateInit2(strm, windowBits) \ - inflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream)) - - -const char * zError OF((int err)); -int inflateSyncPoint OF((z_streamp z)); -const uLong * get_crc_table OF((void)); - -typedef unsigned char uch; -typedef unsigned short ush; -typedef unsigned long ulg; - -extern const char *z_errmsg[10]; /* indexed by 2-zlib_error */ -/* (size given to avoid silly warnings with Visual C++) */ - -#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)] - -#define ERR_RETURN(strm,err) \ - return (strm->msg = (char*)ERR_MSG(err), (err)) -/* To be used only when the state is known to be valid */ - - /* common constants */ - -#ifndef DEF_WBITS -# define DEF_WBITS MAX_WBITS -#endif -/* default windowBits for decompression. MAX_WBITS is for compression only */ - -#if MAX_MEM_LEVEL >= 8 -# define DEF_MEM_LEVEL 8 -#else -# define DEF_MEM_LEVEL MAX_MEM_LEVEL -#endif -/* default memLevel */ - -#define STORED_BLOCK 0 -#define STATIC_TREES 1 -#define DYN_TREES 2 -/* The three kinds of block type */ - -#define MIN_MATCH 3 -#define MAX_MATCH 258 -/* The minimum and maximum match lengths */ - -#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ - - /* target dependencies */ - - /* Common defaults */ - -#ifndef OS_CODE -# define OS_CODE 0x03 /* assume Unix */ -#endif - -#ifndef F_OPEN -# define F_OPEN(name, mode) fopen((name), (mode)) -#endif - - /* functions */ - -#ifdef HAVE_STRERROR - extern char *strerror OF((int)); -# define zstrerror(errnum) strerror(errnum) -#else -# define zstrerror(errnum) "" -#endif - #define zmemcpy memcpy #define zmemcmp memcmp #define zmemzero(dest, len) memset(dest, 0, len) @@ -1207,6 +239,13 @@ void zcfree OF((voidp opaque, voidp ptr)); #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidp)(addr)) #define TRY_FREE(s, p) {if (p) ZFREE(s, p);} +// use real zlib +#ifndef DEF_WBITS +# define DEF_WBITS MAX_WBITS +#endif +/* default windowBits for decompression. MAX_WBITS is for compression only */ +#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */ +#include #if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) && \ !defined(CASESENSITIVITYDEFAULT_NO) @@ -1232,8 +271,6 @@ void zcfree OF((voidp opaque, voidp ptr)); #define SIZECENTRALDIRITEM (0x2e) #define SIZEZIPLOCALHEADER (0x1e) - - /* =========================================================================== Read a byte from a gz_stream; update next_in and avail_in. Return EOF for end of file. @@ -2493,18 +1530,6 @@ static const uLong crc_table[256] = { }; #endif -/* ========================================================================= - * This function can be used by asm versions of crc32() - */ -#ifndef __APPLE__ -const uLong * get_crc_table() -{ -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) make_crc_table(); -#endif - return (const uLong *)crc_table; -} -#endif /* ========================================================================= */ #define DO1(buf) crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8); @@ -2512,28 +1537,6 @@ const uLong * get_crc_table() #define DO4(buf) DO2(buf); DO2(buf); #define DO8(buf) DO4(buf); DO4(buf); -/* ========================================================================= */ -#ifndef __APPLE__ -uLong crc32(uLong crc, const Byte *buf, uInt len) -{ - if (buf == Z_NULL) return 0L; -#ifdef DYNAMIC_CRC_TABLE - if (crc_table_empty) - make_crc_table(); -#endif - crc = crc ^ 0xffffffffL; - while (len >= 8) - { - DO8(buf); - len -= 8; - } - if (len) do { - DO1(buf); - } while (--len); - return crc ^ 0xffffffffL; -} -#endif - /* infblock.h -- header to use infblock.c * Copyright (C) 1995-1998 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h @@ -2812,420 +1815,19 @@ extern int inflate_flush OF(( the two sets of lengths. */ +/* And'ing with mask[n] masks the lower n bits */ +uInt inflate_mask[17] = { + 0x0000, + 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, + 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff +}; -#ifndef __APPLE__ -void inflate_blocks_reset(inflate_blocks_statef *s, z_streamp z, uLong *c) -{ - if (c != Z_NULL) - *c = s->check; - if (s->mode == BTREE || s->mode == DTREE) - ZFREE(z, s->sub.trees.blens); - if (s->mode == CODES) - inflate_codes_free(s->sub.decode.codes, z); - s->mode = TYPE; - s->bitk = 0; - s->bitb = 0; - s->read = s->write = s->window; - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(0L, (const Byte *)Z_NULL, 0); - Tracev(("inflate: blocks reset\n")); -} -#endif - -#ifndef __APPLE__ -inflate_blocks_statef *inflate_blocks_new(z_streamp z, check_func c, uInt w) -{ - inflate_blocks_statef *s; - - if ((s = (inflate_blocks_statef *)ZALLOC - (z,1,sizeof(struct inflate_blocks_state))) == Z_NULL) - return s; - if ((s->hufts = - (inflate_huft *)ZALLOC(z, sizeof(inflate_huft), MANY)) == Z_NULL) - { - ZFREE(z, s); - return Z_NULL; - } - if ((s->window = (Byte *)ZALLOC(z, 1, w)) == Z_NULL) - { - ZFREE(z, s->hufts); - ZFREE(z, s); - return Z_NULL; - } - s->end = s->window + w; - s->checkfn = c; - s->mode = TYPE; - Tracev(("inflate: blocks allocated\n")); - inflate_blocks_reset(s, z, Z_NULL); - return s; -} -#endif - -#ifndef __APPLE__ -int inflate_blocks(inflate_blocks_statef *s, z_streamp z, int r) -{ - uInt t; /* temporary storage */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Byte *p; /* input data pointer */ - uInt n; /* bytes available there */ - Byte *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - - /* copy input/output information to locals (UPDATE macro restores) */ - LOAD - - /* process input based on current state */ - while (1) switch (s->mode) - { - case TYPE: - NEEDBITS(3) - t = (uInt)b & 7; - s->last = t & 1; - switch (t >> 1) - { - case 0: /* stored */ - Tracev(("inflate: stored block%s\n", - s->last ? " (last)" : "")); - DUMPBITS(3) - t = k & 7; /* go to byte boundary */ - DUMPBITS(t) - s->mode = LENS; /* get length of stored block */ - break; - case 1: /* fixed */ - Tracev(("inflate: fixed codes block%s\n", - s->last ? " (last)" : "")); - { - uInt bl, bd; - inflate_huft *tl, *td; - - inflate_trees_fixed(&bl, &bd, &tl, &td, z); - s->sub.decode.codes = inflate_codes_new(bl, bd, tl, td, z); - if (s->sub.decode.codes == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - } - DUMPBITS(3) - s->mode = CODES; - break; - case 2: /* dynamic */ - Tracev(("inflate: dynamic codes block%s\n", - s->last ? " (last)" : "")); - DUMPBITS(3) - s->mode = TABLE; - break; - case 3: /* illegal */ - DUMPBITS(3) - s->mode = BAD; - z->msg = (char*)"invalid block type"; - r = Z_DATA_ERROR; - LEAVE - } - break; - case LENS: - NEEDBITS(32) - if ((((~b) >> 16) & 0xffff) != (b & 0xffff)) - { - s->mode = BAD; - z->msg = (char*)"invalid stored block lengths"; - r = Z_DATA_ERROR; - LEAVE - } - s->sub.left = (uInt)b & 0xffff; - b = k = 0; /* dump bits */ - Tracev(("inflate: stored length %u\n", s->sub.left)); - s->mode = s->sub.left ? STORED : (s->last ? DRY : TYPE); - break; - case STORED: - if (n == 0) - LEAVE - NEEDOUT - t = s->sub.left; - if (t > n) t = n; - if (t > m) t = m; - zmemcpy(q, p, t); - p += t; n -= t; - q += t; m -= t; - if ((s->sub.left -= t) != 0) - break; - Tracev(("inflate: stored end, %lu total out\n", - z->total_out + (q >= s->read ? q - s->read : - (s->end - s->read) + (q - s->window)))); - s->mode = s->last ? DRY : TYPE; - break; - case TABLE: - NEEDBITS(14) - s->sub.trees.table = t = (uInt)b & 0x3fff; -#ifndef PKZIP_BUG_WORKAROUND - if ((t & 0x1f) > 29 || ((t >> 5) & 0x1f) > 29) - { - s->mode = BAD; - z->msg = (char*)"too many length or distance symbols"; - r = Z_DATA_ERROR; - LEAVE - } -#endif - t = 258 + (t & 0x1f) + ((t >> 5) & 0x1f); - if ((s->sub.trees.blens = (uInt*)ZALLOC(z, t, sizeof(uInt))) == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - DUMPBITS(14) - s->sub.trees.index = 0; - Tracev(("inflate: table sizes ok\n")); - s->mode = BTREE; - case BTREE: - while (s->sub.trees.index < 4 + (s->sub.trees.table >> 10)) - { - NEEDBITS(3) - s->sub.trees.blens[border[s->sub.trees.index++]] = (uInt)b & 7; - DUMPBITS(3) - } - while (s->sub.trees.index < 19) - s->sub.trees.blens[border[s->sub.trees.index++]] = 0; - s->sub.trees.bb = 7; - t = inflate_trees_bits(s->sub.trees.blens, &s->sub.trees.bb, - &s->sub.trees.tb, s->hufts, z); - if (t != Z_OK) - { - ZFREE(z, s->sub.trees.blens); - r = t; - if (r == Z_DATA_ERROR) - s->mode = BAD; - LEAVE - } - s->sub.trees.index = 0; - Tracev(("inflate: bits tree ok\n")); - s->mode = DTREE; - case DTREE: - while (t = s->sub.trees.table, - s->sub.trees.index < 258 + (t & 0x1f) + ((t >> 5) & 0x1f)) - { - inflate_huft *h; - uInt i, j, c; - - t = s->sub.trees.bb; - NEEDBITS(t) - h = s->sub.trees.tb + ((uInt)b & inflate_mask[t]); - t = h->bits; - c = h->base; - if (c < 16) - { - DUMPBITS(t) - s->sub.trees.blens[s->sub.trees.index++] = c; - } - else /* c == 16..18 */ - { - i = c == 18 ? 7 : c - 14; - j = c == 18 ? 11 : 3; - NEEDBITS(t + i) - DUMPBITS(t) - j += (uInt)b & inflate_mask[i]; - DUMPBITS(i) - i = s->sub.trees.index; - t = s->sub.trees.table; - if (i + j > 258 + (t & 0x1f) + ((t >> 5) & 0x1f) || - (c == 16 && i < 1)) - { - ZFREE(z, s->sub.trees.blens); - s->mode = BAD; - z->msg = (char*)"invalid bit length repeat"; - r = Z_DATA_ERROR; - LEAVE - } - c = c == 16 ? s->sub.trees.blens[i - 1] : 0; - do { - s->sub.trees.blens[i++] = c; - } while (--j); - s->sub.trees.index = i; - } - } - s->sub.trees.tb = Z_NULL; - { - uInt bl, bd; - inflate_huft *tl, *td; - inflate_codes_statef *c; - - bl = 9; /* must be <= 9 for lookahead assumptions */ - bd = 6; /* must be <= 9 for lookahead assumptions */ - t = s->sub.trees.table; - t = inflate_trees_dynamic(257 + (t & 0x1f), 1 + ((t >> 5) & 0x1f), - s->sub.trees.blens, &bl, &bd, &tl, &td, - s->hufts, z); - ZFREE(z, s->sub.trees.blens); - if (t != Z_OK) - { - if (t == (uInt)Z_DATA_ERROR) - s->mode = BAD; - r = t; - LEAVE - } - Tracev(("inflate: trees ok\n")); - if ((c = inflate_codes_new(bl, bd, tl, td, z)) == Z_NULL) - { - r = Z_MEM_ERROR; - LEAVE - } - s->sub.decode.codes = c; - } - s->mode = CODES; - case CODES: - UPDATE - if ((r = inflate_codes(s, z, r)) != Z_STREAM_END) - return inflate_flush(s, z, r); - r = Z_OK; - inflate_codes_free(s->sub.decode.codes, z); - LOAD - Tracev(("inflate: codes end, %lu total out\n", - z->total_out + (q >= s->read ? q - s->read : - (s->end - s->read) + (q - s->window)))); - if (!s->last) - { - s->mode = TYPE; - break; - } - s->mode = DRY; - case DRY: - FLUSH - if (s->read != s->write) - LEAVE - s->mode = DONE; - case DONE: - r = Z_STREAM_END; - LEAVE - case BAD: - r = Z_DATA_ERROR; - LEAVE - default: - r = Z_STREAM_ERROR; - LEAVE - } -} -#endif - -#ifndef __APPLE__ -int inflate_blocks_free(inflate_blocks_statef *s, z_streamp z) -{ - inflate_blocks_reset(s, z, Z_NULL); - ZFREE(z, s->window); - ZFREE(z, s->hufts); - ZFREE(z, s); - Tracev(("inflate: blocks freed\n")); - return Z_OK; -} -#endif - -#ifndef __APPLE__ -void inflate_set_dictionary(inflate_blocks_statef *s, const Byte *d, uInt n) -{ - zmemcpy(s->window, d, n); - s->read = s->write = s->window + n; -} -#endif - -/* Returns true if inflate is currently at the end of a block generated - * by Z_SYNC_FLUSH or Z_FULL_FLUSH. - * IN assertion: s != Z_NULL - */ -#ifndef __APPLE__ -int inflate_blocks_sync_point(inflate_blocks_statef *s) -{ - return s->mode == LENS; -} -#endif - -/* And'ing with mask[n] masks the lower n bits */ -uInt inflate_mask[17] = { - 0x0000, - 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff, - 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff -}; - -/* copy as much as possible from the sliding window to the output area */ -#ifndef __APPLE__ -int inflate_flush(inflate_blocks_statef *s, z_streamp z, int r) -{ - uInt n; - Byte *p; - Byte *q; - - /* static copies of source and destination pointers */ - p = z->next_out; - q = s->read; - - /* compute number of bytes to copy as as end of window */ - n = (uInt)((q <= s->write ? s->write : s->end) - q); - if (n > z->avail_out) n = z->avail_out; - if (n && r == Z_BUF_ERROR) r = Z_OK; - - /* update counters */ - z->avail_out -= n; - z->total_out += n; - - /* update check information */ - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(s->check, q, n); - - /* copy as as end of window */ - zmemcpy(p, q, n); - p += n; - q += n; - - /* see if more to copy at beginning of window */ - if (q == s->end) - { - /* wrap pointers */ - q = s->window; - if (s->write == s->end) - s->write = s->window; - - /* compute bytes to copy */ - n = (uInt)(s->write - q); - if (n > z->avail_out) n = z->avail_out; - if (n && r == Z_BUF_ERROR) r = Z_OK; - - /* update counters */ - z->avail_out -= n; - z->total_out += n; - - /* update check information */ - if (s->checkfn != Z_NULL) - z->adler = s->check = (*s->checkfn)(s->check, q, n); - - /* copy */ - zmemcpy(p, q, n); - p += n; - q += n; - } - - /* update pointers */ - z->next_out = p; - s->read = q; - - /* done */ - return r; -} -#endif - -/* inftrees.c -- generate Huffman trees for efficient decoding - * Copyright (C) 1995-1998 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#ifndef __APPLE__ -const char inflate_copyright[] = - " inflate 1.1.3 Copyright 1995-1998 Mark Adler "; -#endif - -/* - If you use the zlib library in a product, an acknowledgment is welcome - in the documentation of your product. If for some reason you cannot - include such an acknowledgment, I would appreciate that you keep this - copyright string in the executable of your product. - */ +/* + If you use the zlib library in a product, an acknowledgment is welcome + in the documentation of your product. If for some reason you cannot + include such an acknowledgment, I would appreciate that you keep this + copyright string in the executable of your product. + */ /* simplify the use of the inflate_huft type with some defines */ #define exop word.what.Exop @@ -3498,99 +2100,6 @@ static int huft_build(uInt *b, uInt n, uInt s, const uInt *d, const uInt *e, inf } -#ifndef __APPLE__ -int inflate_trees_bits(uInt *c, uInt *bb, inflate_huft * *tb, inflate_huft *hp, z_streamp z) -//uInt *c; /* 19 code lengths */ -//uInt *bb; /* bits tree desired/actual depth */ -//inflate_huft * *tb; /* bits tree result */ -//inflate_huft *hp; /* space for trees */ -//z_streamp z; /* for messages */ -{ - int r; - uInt hn = 0; /* hufts used in space */ - uInt *v; /* work area for huft_build */ - - if ((v = (uInt*)ZALLOC(z, 19, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - r = huft_build(c, 19, 19, (uInt*)Z_NULL, (uInt*)Z_NULL, - tb, bb, hp, &hn, v); - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed dynamic bit lengths tree"; - else if (r == Z_BUF_ERROR || *bb == 0) - { - z->msg = (char*)"incomplete dynamic bit lengths tree"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; -} -#endif - -#ifndef __APPLE__ -int inflate_trees_dynamic(uInt nl, uInt nd, uInt *c, uInt *bl, uInt *bd, inflate_huft * *tl, inflate_huft * *td, inflate_huft *hp, z_streamp z) -//uInt nl; /* number of literal/length codes */ -//uInt nd; /* number of distance codes */ -//uInt *c; /* that many (total) code lengths */ -//uInt *bl; /* literal desired/actual bit depth */ -//uInt *bd; /* distance desired/actual bit depth */ -//inflate_huft * *tl; /* literal/length tree result */ -//inflate_huft * *td; /* distance tree result */ -//inflate_huft *hp; /* space for trees */ -//z_streamp z; /* for messages */ -{ - int r; - uInt hn = 0; /* hufts used in space */ - uInt *v; /* work area for huft_build */ - - /* allocate work area */ - if ((v = (uInt*)ZALLOC(z, 288, sizeof(uInt))) == Z_NULL) - return Z_MEM_ERROR; - - /* build literal/length tree */ - r = huft_build(c, nl, 257, cplens, cplext, tl, bl, hp, &hn, v); - if (r != Z_OK || *bl == 0) - { - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed literal/length tree"; - else if (r != Z_MEM_ERROR) - { - z->msg = (char*)"incomplete literal/length tree"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; - } - - /* build distance tree */ - r = huft_build(c + nl, nd, 0, cpdist, cpdext, td, bd, hp, &hn, v); - if (r != Z_OK || (*bd == 0 && nl > 257)) - { - if (r == Z_DATA_ERROR) - z->msg = (char*)"oversubscribed distance tree"; - else if (r == Z_BUF_ERROR) { -#ifdef PKZIP_BUG_WORKAROUND - r = Z_OK; - } -#else - z->msg = (char*)"incomplete distance tree"; - r = Z_DATA_ERROR; - } - else if (r != Z_MEM_ERROR) - { - z->msg = (char*)"empty distance tree with lengths"; - r = Z_DATA_ERROR; - } - ZFREE(z, v); - return r; -#endif - } - - /* done */ - ZFREE(z, v); - return Z_OK; -} -#endif - /* inffixed.h -- table for decoding fixed codes * Generated automatically by the maketree.c program */ @@ -3743,176 +2252,6 @@ static inflate_huft fixed_td[] = { {{{82,5}},13}, {{{90,5}},3073}, {{{86,5}},193}, {{{192,5}},24577} }; -#ifndef __APPLE__ -int inflate_trees_fixed(uInt *bl, uInt *bd, inflate_huft * *tl, inflate_huft * *td, z_streamp z) -//uInt *bl; /* literal desired/actual bit depth */ -//uInt *bd; /* distance desired/actual bit depth */ -//inflate_huft * *tl; /* literal/length tree result */ -//inflate_huft * *td; /* distance tree result */ -//z_streamp z; /* for memory allocation */ -{ - *bl = fixed_bl; - *bd = fixed_bd; - *tl = fixed_tl; - *td = fixed_td; - return Z_OK; -} -#endif - -/* simplify the use of the inflate_huft type with some defines */ -#define exop word.what.Exop -#define bits word.what.Bits - -/* macros for bit input with no checking and for returning unused bytes */ -#define GRABBITS(j) {while(k<(j)){b|=((uLong)NEXTBYTE)<avail_in-n;c=(k>>3)>3:c;n+=c;p-=c;k-=c<<3;} - -/* Called with number of bytes left to write in window at least 258 - (the maximum string length) and number of input bytes available - at least ten. The ten bytes are six bytes for the longest length/ - distance pair plus four bytes for overloading the bit buffer. */ - -#ifndef __APPLE__ -int inflate_fast(uInt bl, uInt bd, inflate_huft *tl, inflate_huft *td, inflate_blocks_statef *s, z_streamp z) -{ - inflate_huft *t; /* temporary pointer */ - uInt e; /* extra bits or operation */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Byte *p; /* input data pointer */ - uInt n; /* bytes available there */ - Byte *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - uInt ml; /* mask for literal/length tree */ - uInt md; /* mask for distance tree */ - uInt c; /* bytes to copy */ - uInt d; /* distance back to copy from */ - Byte *r; /* copy source pointer */ - - /* load input, output, bit values */ - LOAD - - /* initialize masks */ - ml = inflate_mask[bl]; - md = inflate_mask[bd]; - - /* do until not enough input or output space for fast loop */ - do { /* assume called with m >= 258 && n >= 10 */ - /* get literal/length code */ - GRABBITS(20) /* max bits for literal/length code */ - if ((e = (t = tl + ((uInt)b & ml))->exop) == 0) - { - DUMPBITS(t->bits) - Tracevv((t->base >= 0x20 && t->base < 0x7f ? - "inflate: * literal '%c'\n" : - "inflate: * literal 0x%02x\n", t->base)); - *q++ = (Byte)t->base; - m--; - continue; - } - do { - DUMPBITS(t->bits) - if (e & 16) - { - /* get extra bits for length */ - e &= 15; - c = t->base + ((uInt)b & inflate_mask[e]); - DUMPBITS(e) - Tracevv(("inflate: * length %u\n", c)); - - /* decode distance base of block to copy */ - GRABBITS(15); /* max bits for distance code */ - e = (t = td + ((uInt)b & md))->exop; - do { - DUMPBITS(t->bits) - if (e & 16) - { - /* get extra bits to add to distance base */ - e &= 15; - GRABBITS(e) /* get extra bits (up to 13) */ - d = t->base + ((uInt)b & inflate_mask[e]); - DUMPBITS(e) - Tracevv(("inflate: * distance %u\n", d)); - - /* do the copy */ - m -= c; - if ((uInt)(q - s->window) >= d) /* offset before dest */ - { /* just copy */ - r = q - d; - *q++ = *r++; c--; /* minimum count is three, */ - *q++ = *r++; c--; /* so unroll loop a little */ - } - else /* else offset after destination */ - { - e = d - (uInt)(q - s->window); /* bytes from offset to end */ - r = s->end - e; /* pointer to offset */ - if (c > e) /* if source crosses, */ - { - c -= e; /* copy to end of window */ - do { - *q++ = *r++; - } while (--e); - r = s->window; /* copy rest from start of window */ - } - } - do { /* copy all or what's left */ - *q++ = *r++; - } while (--c); - break; - } - else if ((e & 64) == 0) - { - t += t->base; - e = (t += ((uInt)b & inflate_mask[e]))->exop; - } - else - { - z->msg = (char*)"invalid distance code"; - UNGRAB - UPDATE - return Z_DATA_ERROR; - } - } while (1); - break; - } - if ((e & 64) == 0) - { - t += t->base; - if ((e = (t += ((uInt)b & inflate_mask[e]))->exop) == 0) - { - DUMPBITS(t->bits) - Tracevv((t->base >= 0x20 && t->base < 0x7f ? - "inflate: * literal '%c'\n" : - "inflate: * literal 0x%02x\n", t->base)); - *q++ = (Byte)t->base; - m--; - break; - } - } - else if (e & 32) - { - Tracevv(("inflate: * end of block\n")); - UNGRAB - UPDATE - return Z_STREAM_END; - } - else - { - z->msg = (char*)"invalid literal/length code"; - UNGRAB - UPDATE - return Z_DATA_ERROR; - } - } while (1); - } while (m >= 258 && n >= 10); - - /* not enough input or output--restore pointers and return */ - UNGRAB - UPDATE - return Z_OK; -} -#endif - /* infcodes.c -- process literals and length/distance pairs * Copyright (C) 1995-1998 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h @@ -3963,251 +2302,6 @@ struct inflate_codes_state { }; -#ifndef __APPLE__ -inflate_codes_statef *inflate_codes_new(uInt bl, uInt bd, inflate_huft *tl, inflate_huft *td, z_streamp z) -{ - inflate_codes_statef *c; - - if ((c = (inflate_codes_statef *) - ZALLOC(z,1,sizeof(struct inflate_codes_state))) != Z_NULL) - { - c->mode = START; - c->lbits = (Byte)bl; - c->dbits = (Byte)bd; - c->ltree = tl; - c->dtree = td; - Tracev(("inflate: codes new\n")); - } - return c; -} -#endif - -#ifndef __APPLE__ -int inflate_codes(inflate_blocks_statef *s, z_streamp z, int r) -{ - uInt j; /* temporary storage */ - inflate_huft *t; /* temporary pointer */ - uInt e; /* extra bits or operation */ - uLong b; /* bit buffer */ - uInt k; /* bits in bit buffer */ - Byte *p; /* input data pointer */ - uInt n; /* bytes available there */ - Byte *q; /* output window write pointer */ - uInt m; /* bytes to end of window or read pointer */ - Byte *f; /* pointer to copy strings from */ - inflate_codes_statef *c = s->sub.decode.codes; /* codes state */ - - /* copy input/output information to locals (UPDATE macro restores) */ - LOAD - - /* process input and output based on current state */ - while (1) switch (c->mode) - { /* waiting for "i:"=input, "o:"=output, "x:"=nothing */ - case START: /* x: set up for LEN */ -#ifndef SLOW - if (m >= 258 && n >= 10) - { - UPDATE - r = inflate_fast(c->lbits, c->dbits, c->ltree, c->dtree, s, z); - LOAD - if (r != Z_OK) - { - c->mode = r == Z_STREAM_END ? WASH : BADCODE; - break; - } - } -#endif /* !SLOW */ - c->sub.code.need = c->lbits; - c->sub.code.tree = c->ltree; - c->mode = LEN; - case LEN: /* i: get length/literal/eob next */ - j = c->sub.code.need; - NEEDBITS(j) - t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); - DUMPBITS(t->bits) - e = (uInt)(t->exop); - if (e == 0) /* literal */ - { - c->sub.lit = t->base; - Tracevv((t->base >= 0x20 && t->base < 0x7f ? - "inflate: literal '%c'\n" : - "inflate: literal 0x%02x\n", t->base)); - c->mode = LIT; - break; - } - if (e & 16) /* length */ - { - c->sub.copy.get = e & 15; - c->len = t->base; - c->mode = LENEXT; - break; - } - if ((e & 64) == 0) /* next table */ - { - c->sub.code.need = e; - c->sub.code.tree = t + t->base; - break; - } - if (e & 32) /* end of block */ - { - Tracevv(("inflate: end of block\n")); - c->mode = WASH; - break; - } - c->mode = BADCODE; /* invalid code */ - z->msg = (char*)"invalid literal/length code"; - r = Z_DATA_ERROR; - LEAVE - case LENEXT: /* i: getting length extra (have base) */ - j = c->sub.copy.get; - NEEDBITS(j) - c->len += (uInt)b & inflate_mask[j]; - DUMPBITS(j) - c->sub.code.need = c->dbits; - c->sub.code.tree = c->dtree; - Tracevv(("inflate: length %u\n", c->len)); - c->mode = DIST; - case DIST: /* i: get distance next */ - j = c->sub.code.need; - NEEDBITS(j) - t = c->sub.code.tree + ((uInt)b & inflate_mask[j]); - DUMPBITS(t->bits) - e = (uInt)(t->exop); - if (e & 16) /* distance */ - { - c->sub.copy.get = e & 15; - c->sub.copy.dist = t->base; - c->mode = DISTEXT; - break; - } - if ((e & 64) == 0) /* next table */ - { - c->sub.code.need = e; - c->sub.code.tree = t + t->base; - break; - } - c->mode = BADCODE; /* invalid code */ - z->msg = (char*)"invalid distance code"; - r = Z_DATA_ERROR; - LEAVE - case DISTEXT: /* i: getting distance extra */ - j = c->sub.copy.get; - NEEDBITS(j) - c->sub.copy.dist += (uInt)b & inflate_mask[j]; - DUMPBITS(j) - Tracevv(("inflate: distance %u\n", c->sub.copy.dist)); - c->mode = COPY; - case COPY: /* o: copying bytes in window, waiting for space */ -#ifndef __TURBOC__ /* Turbo C bug for following expression */ - f = (uInt)(q - s->window) < c->sub.copy.dist ? - s->end - (c->sub.copy.dist - (q - s->window)) : - q - c->sub.copy.dist; -#else - f = q - c->sub.copy.dist; - if ((uInt)(q - s->window) < c->sub.copy.dist) - f = s->end - (c->sub.copy.dist - (uInt)(q - s->window)); -#endif - while (c->len) - { - NEEDOUT - OUTBYTE(*f++) - if (f == s->end) - f = s->window; - c->len--; - } - c->mode = START; - break; - case LIT: /* o: got literal, waiting for output space */ - NEEDOUT - OUTBYTE(c->sub.lit) - c->mode = START; - break; - case WASH: /* o: got eob, possibly more output */ - if (k > 7) /* return unused byte, if any */ - { - Assert(k < 16, "inflate_codes grabbed too many bytes") - k -= 8; - n++; - p--; /* can always return one */ - } - FLUSH - if (s->read != s->write) - LEAVE - c->mode = END; - case END: - r = Z_STREAM_END; - LEAVE - case BADCODE: /* x: got error */ - r = Z_DATA_ERROR; - LEAVE - default: - r = Z_STREAM_ERROR; - LEAVE - } -#ifdef NEED_DUMMY_RETURN - return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ -#endif -} -#endif - -#ifndef __APPLE__ -void inflate_codes_free(inflate_codes_statef *c, z_streamp z) -{ - ZFREE(z, c); - Tracev(("inflate: codes free\n")); -} -#endif - -/* adler32.c -- compute the Adler-32 checksum of a data stream - * Copyright (C) 1995-1998 Mark Adler - * For conditions of distribution and use, see copyright notice in zlib.h - */ - -#define BASE 65521L /* largest prime smaller than 65536 */ -#define NMAX 5552 -/* NMAX is the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1 */ - -#undef DO1 -#undef DO2 -#undef DO4 -#undef DO8 - -#define DO1(buf,i) {s1 += buf[i]; s2 += s1;} -#define DO2(buf,i) DO1(buf,i); DO1(buf,i+1); -#define DO4(buf,i) DO2(buf,i); DO2(buf,i+2); -#define DO8(buf,i) DO4(buf,i); DO4(buf,i+4); -#define DO16(buf) DO8(buf,0); DO8(buf,8); - -/* ========================================================================= */ -#ifndef __APPLE__ -uLong adler32(uLong adler, const Byte *buf, uInt len) -{ - unsigned long s1 = adler & 0xffff; - unsigned long s2 = (adler >> 16) & 0xffff; - int k; - - if (buf == Z_NULL) return 1L; - - while (len > 0) { - k = len < NMAX ? len : NMAX; - len -= k; - while (k >= 16) { - DO16(buf); - buf += 16; - k -= 16; - } - if (k != 0) do { - s1 += *buf++; - s2 += s1; - } while (--k); - s1 %= BASE; - s2 %= BASE; - } - return (s2 << 16) | s1; -} -#endif - - /* infblock.h -- header to use infblock.c * Copyright (C) 1995-1998 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h @@ -4285,326 +2379,3 @@ struct internal_state { *blocks; /* current inflate_blocks state */ }; - - -#ifndef __APPLE__ -int inflateReset(z_streamp z) -{ - if (z == Z_NULL || z->state == Z_NULL) - return Z_STREAM_ERROR; - z->total_in = z->total_out = 0; - z->msg = Z_NULL; - z->state->mode = z->state->nowrap ? imBLOCKS : imMETHOD; - inflate_blocks_reset(z->state->blocks, z, Z_NULL); - Tracev(("inflate: reset\n")); - return Z_OK; -} -#endif - -#ifndef __APPLE__ -int inflateEnd(z_streamp z) -{ - if (z == Z_NULL || z->state == Z_NULL || z->zfree == Z_NULL) - return Z_STREAM_ERROR; - if (z->state->blocks != Z_NULL) - inflate_blocks_free(z->state->blocks, z); - ZFREE(z, z->state); - z->state = Z_NULL; - Tracev(("inflate: end\n")); - return Z_OK; -} -#endif - -#ifndef __APPLE__ -int inflateInit2_(z_streamp z, int w, const char *version, int stream_size) -{ - if (version == Z_NULL || version[0] != ZLIB_VERSION[0] || - stream_size != sizeof(z_stream)) - return Z_VERSION_ERROR; - - /* initialize state */ - if (z == Z_NULL) - return Z_STREAM_ERROR; - z->msg = Z_NULL; - if (z->zalloc == Z_NULL) - { - z->zalloc = (void *(*)(void *, unsigned, unsigned))zcalloc; - z->opaque = (voidp)0; - } - if (z->zfree == Z_NULL) z->zfree = (void (*)(void *, void *))zcfree; - if ((z->state = (struct internal_state *) - ZALLOC(z,1,sizeof(struct internal_state))) == Z_NULL) - return Z_MEM_ERROR; - z->state->blocks = Z_NULL; - - /* handle undocumented nowrap option (no zlib header or check) */ - z->state->nowrap = 0; - if (w < 0) - { - w = - w; - z->state->nowrap = 1; - } - - /* set window size */ - if (w < 8 || w > 15) - { - inflateEnd(z); - return Z_STREAM_ERROR; - } - z->state->wbits = (uInt)w; - - /* create inflate_blocks state */ - if ((z->state->blocks = - inflate_blocks_new(z, z->state->nowrap ? Z_NULL : adler32, (uInt)1 << w)) - == Z_NULL) - { - inflateEnd(z); - return Z_MEM_ERROR; - } - Tracev(("inflate: allocated\n")); - - /* reset state */ - inflateReset(z); - return Z_OK; -} -#endif - -#ifndef __APPLE__ -int inflateInit_(z_streamp z, const char *version, int stream_size) -{ - return inflateInit2_(z, DEF_WBITS, version, stream_size); -} -#endif - -#define iNEEDBYTE {if(z->avail_in==0)return r;r=f;} -#define iNEXTBYTE (z->avail_in--,z->total_in++,*z->next_in++) - -#ifndef __APPLE__ -int inflate(z_streamp z, int f) -{ - int r; - uInt b; - - if (z == Z_NULL || z->state == Z_NULL || z->next_in == Z_NULL) - return Z_STREAM_ERROR; - f = f == Z_FINISH ? Z_BUF_ERROR : Z_OK; - r = Z_BUF_ERROR; - while (1) switch (z->state->mode) - { - case imMETHOD: - iNEEDBYTE - if (((z->state->sub.method = iNEXTBYTE) & 0xf) != Z_DEFLATED) - { - z->state->mode = imBAD; - z->msg = (char*)"unknown compression method"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - if ((z->state->sub.method >> 4) + 8 > z->state->wbits) - { - z->state->mode = imBAD; - z->msg = (char*)"invalid window size"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - z->state->mode = imFLAG; - case imFLAG: - iNEEDBYTE - b = iNEXTBYTE; - if (((z->state->sub.method << 8) + b) % 31) - { - z->state->mode = imBAD; - z->msg = (char*)"incorrect header check"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - Tracev(("inflate: zlib header ok\n")); - if (!(b & PRESET_DICT)) - { - z->state->mode = imBLOCKS; - break; - } - z->state->mode = imDICT4; - case imDICT4: - iNEEDBYTE - z->state->sub.check.need = (uLong)iNEXTBYTE << 24; - z->state->mode = imDICT3; - case imDICT3: - iNEEDBYTE - z->state->sub.check.need += (uLong)iNEXTBYTE << 16; - z->state->mode = imDICT2; - case imDICT2: - iNEEDBYTE - z->state->sub.check.need += (uLong)iNEXTBYTE << 8; - z->state->mode = imDICT1; - case imDICT1: - iNEEDBYTE - z->state->sub.check.need += (uLong)iNEXTBYTE; - z->adler = z->state->sub.check.need; - z->state->mode = imDICT0; - return Z_NEED_DICT; - case imDICT0: - z->state->mode = imBAD; - z->msg = (char*)"need dictionary"; - z->state->sub.marker = 0; /* can try inflateSync */ - return Z_STREAM_ERROR; - case imBLOCKS: - r = inflate_blocks(z->state->blocks, z, r); - if (r == Z_DATA_ERROR) - { - z->state->mode = imBAD; - z->state->sub.marker = 0; /* can try inflateSync */ - break; - } - if (r == Z_OK) - r = f; - if (r != Z_STREAM_END) - return r; - r = f; - inflate_blocks_reset(z->state->blocks, z, &z->state->sub.check.was); - if (z->state->nowrap) - { - z->state->mode = imDONE; - break; - } - z->state->mode = imCHECK4; - case imCHECK4: - iNEEDBYTE - z->state->sub.check.need = (uLong)iNEXTBYTE << 24; - z->state->mode = imCHECK3; - case imCHECK3: - iNEEDBYTE - z->state->sub.check.need += (uLong)iNEXTBYTE << 16; - z->state->mode = imCHECK2; - case imCHECK2: - iNEEDBYTE - z->state->sub.check.need += (uLong)iNEXTBYTE << 8; - z->state->mode = imCHECK1; - case imCHECK1: - iNEEDBYTE - z->state->sub.check.need += (uLong)iNEXTBYTE; - - if (z->state->sub.check.was != z->state->sub.check.need) - { - z->state->mode = imBAD; - z->msg = (char*)"incorrect data check"; - z->state->sub.marker = 5; /* can't try inflateSync */ - break; - } - Tracev(("inflate: zlib check ok\n")); - z->state->mode = imDONE; - case imDONE: - return Z_STREAM_END; - case imBAD: - return Z_DATA_ERROR; - default: - return Z_STREAM_ERROR; - } -#ifdef NEED_DUMMY_RETURN - return Z_STREAM_ERROR; /* Some dumb compilers complain without this */ -#endif -} -#endif - -#ifndef __APPLE__ -int inflateSetDictionary(z_streamp z, const Byte *dictionary, uInt dictLength) -{ - uInt length = dictLength; - - if (z == Z_NULL || z->state == Z_NULL || z->state->mode != imDICT0) - return Z_STREAM_ERROR; - - if (adler32(1L, dictionary, dictLength) != z->adler) return Z_DATA_ERROR; - z->adler = 1L; - - if (length >= ((uInt)1<state->wbits)) - { - length = (1<state->wbits)-1; - dictionary += dictLength - length; - } - inflate_set_dictionary(z->state->blocks, dictionary, length); - z->state->mode = imBLOCKS; - return Z_OK; -} -#endif - -#ifndef __APPLE__ -int inflateSync(z_streamp z) -{ - uInt n; /* number of bytes to look at */ - Byte *p; /* pointer to bytes */ - uInt m; /* number of marker bytes found in a row */ - uLong r, w; /* temporaries to save total_in and total_out */ - - /* set up */ - if (z == Z_NULL || z->state == Z_NULL) - return Z_STREAM_ERROR; - if (z->state->mode != imBAD) - { - z->state->mode = imBAD; - z->state->sub.marker = 0; - } - if ((n = z->avail_in) == 0) - return Z_BUF_ERROR; - p = z->next_in; - m = z->state->sub.marker; - - /* search */ - while (n && m < 4) - { - static const Byte mark[4] = {0, 0, 0xff, 0xff}; - if (*p == mark[m]) - m++; - else if (*p) - m = 0; - else - m = 4 - m; - p++, n--; - } - - /* restore */ - z->total_in += p - z->next_in; - z->next_in = p; - z->avail_in = n; - z->state->sub.marker = m; - - /* return no joy or set up to restart on a new block */ - if (m != 4) - return Z_DATA_ERROR; - r = z->total_in; w = z->total_out; - inflateReset(z); - z->total_in = r; z->total_out = w; - z->state->mode = imBLOCKS; - return Z_OK; -} -#endif - -/* Returns true if inflate is currently at the end of a block generated - * by Z_SYNC_FLUSH or Z_FULL_FLUSH. This function is used by one PPP - * implementation to provide an additional safety check. PPP uses Z_SYNC_FLUSH - * but removes the length bytes of the resulting empty stored block. When - * decompressing, PPP checks that at the end of input packet, inflate is - * waiting for these length bytes. - */ -#ifndef __APPLE__ -int inflateSyncPoint(z_streamp z) -{ - if (z == Z_NULL || z->state == Z_NULL || z->state->blocks == Z_NULL) - return Z_STREAM_ERROR; - return inflate_blocks_sync_point(z->state->blocks); -} -#endif - -#ifndef __APPLE__ -voidp zcalloc (voidp opaque, unsigned items, unsigned size) -{ - if (opaque) items += size - size; /* make compiler happy */ - return (voidp)safe_malloc(items*size); -} - -void zcfree (voidp opaque, voidp ptr) -{ - free(ptr); - if (opaque) return; /* make compiler happy */ -} -#endif diff --git a/tools/quake3/common/unzip.h b/tools/quake3/common/unzip.h index ca5a2a42..bbf1f00c 100644 --- a/tools/quake3/common/unzip.h +++ b/tools/quake3/common/unzip.h @@ -19,6 +19,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include #if defined( STRICTUNZIP ) || defined( STRICTZIPUNZIP ) /* like the STRICT of WIN32, we define a pointer that cannot be converted @@ -83,30 +84,6 @@ typedef void ( *free_func )( void* opaque, void* address ); struct internal_state; -typedef struct z_stream_s { - unsigned char *next_in; /* next input unsigned char */ - unsigned int avail_in; /* number of unsigned chars available at next_in */ - unsigned long total_in; /* total nb of input unsigned chars read so */ - - unsigned char *next_out; /* next output unsigned char should be put there */ - unsigned int avail_out; /* remaining free space at next_out */ - unsigned long total_out; /* total nb of unsigned chars output so */ - - char *msg; /* last error message, NULL if no error */ - struct internal_state *state; /* not visible by applications */ - - alloc_func zalloc; /* used to allocate the internal state */ - free_func zfree; /* used to free the internal state */ - unsigned char* opaque; /* private data object passed to zalloc and zfree */ - - int data_type; /* best guess about the data type: ascii or binary */ - unsigned long adler; /* adler32 value of the uncompressed data */ - unsigned long reserved; /* reserved for future use */ -} z_stream; - -typedef z_stream *z_streamp; - - /* file_in_zip_read_info_s contain internal information about a file in zipfile, when reading and decompress it */ typedef struct