diff --git a/code/CMakeLists.txt b/code/CMakeLists.txt index 7cc46db90..f7aa847bc 100644 --- a/code/CMakeLists.txt +++ b/code/CMakeLists.txt @@ -965,7 +965,6 @@ IF(ASSIMP_HUNTER_ENABLED) find_package(minizip CONFIG REQUIRED) ELSE() SET( unzip_SRCS - ../contrib/unzip/crypt.c ../contrib/unzip/crypt.h ../contrib/unzip/ioapi.c ../contrib/unzip/ioapi.h diff --git a/contrib/unzip/crypt.c b/contrib/unzip/crypt.c deleted file mode 100644 index cc6650630..000000000 --- a/contrib/unzip/crypt.c +++ /dev/null @@ -1,172 +0,0 @@ -/* crypt.c -- base code for traditional PKWARE encryption - Version 1.01e, February 12th, 2005 - - Copyright (C) 1998-2005 Gilles Vollant - Modifications for Info-ZIP crypting - Copyright (C) 2003 Terry Thorsen - - This code is a modified version of crypting code in Info-ZIP distribution - - Copyright (C) 1990-2000 Info-ZIP. All rights reserved. - - This program is distributed under the terms of the same license as zlib. - See the accompanying LICENSE file for the full text of the license. - - This encryption code is a direct transcription of the algorithm from - Roger Schlafly, described by Phil Katz in the file appnote.txt. This - file (appnote.txt) is distributed with the PKZIP program (even in the - version without encryption capabilities). - - If you don't need crypting in your application, just define symbols - NOCRYPT and NOUNCRYPT. -*/ - -#if defined(WIN32) || defined(_WIN32) || defined(__WIN32) && !defined(__CYGWIN__) - #define MICROSOFT_WINDOWS_WINBASE_H_DEFINE_INTERLOCKED_CPLUSPLUS_OVERLOADS 0 -#endif - -#include -#include -#include -#include - -#ifdef _WIN32 -# include -# include -#else -# include -# include -# include -#endif - -#include "zlib.h" - -#include "crypt.h" - -#ifdef _MSC_VER -# pragma warning(push) -# pragma warning(disable : 4244) -#endif // _MSC_VER - -/***************************************************************************/ - -#define CRC32(c, b) ((*(pcrc_32_tab+(((uint32_t)(c) ^ (b)) & 0xff))) ^ ((c) >> 8)) - -#ifndef ZCR_SEED2 -# define ZCR_SEED2 3141592654UL /* use PI as default pattern */ -#endif - -/***************************************************************************/ - -uint8_t decrypt_byte(uint32_t *pkeys) -{ - unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an - * unpredictable manner on 16-bit systems; not a problem - * with any known compiler so far, though */ - - temp = ((uint32_t)(*(pkeys+2)) & 0xffff) | 2; - return (uint8_t)(((temp * (temp ^ 1)) >> 8) & 0xff); -} - -uint8_t update_keys(uint32_t *pkeys, const z_crc_t *pcrc_32_tab, int32_t c) -{ - (*(pkeys+0)) = (uint32_t)CRC32((*(pkeys+0)), c); - (*(pkeys+1)) += (*(pkeys+0)) & 0xff; - (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1; - { - register int32_t keyshift = (int32_t)((*(pkeys + 1)) >> 24); - (*(pkeys+2)) = (uint32_t)CRC32((*(pkeys+2)), keyshift); - } - return c; -} - -void init_keys(const char *passwd, uint32_t *pkeys, const z_crc_t *pcrc_32_tab) -{ - *(pkeys+0) = 305419896L; - *(pkeys+1) = 591751049L; - *(pkeys+2) = 878082192L; - while (*passwd != 0) - { - update_keys(pkeys, pcrc_32_tab, *passwd); - passwd += 1; - } -} - -/***************************************************************************/ - -int cryptrand(unsigned char *buf, unsigned int len) -{ - static unsigned calls = 0; - int rlen = 0; -#ifdef _WIN32 - HCRYPTPROV provider; - unsigned __int64 pentium_tsc[1]; - int result = 0; - - #if defined(WINAPI_FAMILY) && WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP - if (CryptAcquireContext(&provider, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) - { - result = CryptGenRandom(provider, len, buf); - CryptReleaseContext(provider, 0); - if (result) - return len; - } - #endif - - for (rlen = 0; rlen < (int)len; ++rlen) - { - if (rlen % 8 == 0) - QueryPerformanceCounter((LARGE_INTEGER *)pentium_tsc); - buf[rlen] = ((unsigned char*)pentium_tsc)[rlen % 8]; - } -#else - int frand = open("/dev/urandom", O_RDONLY); - if (frand != -1) - { - rlen = (int)read(frand, buf, len); - close(frand); - } -#endif - if (rlen < (int)len) - { - /* Ensure different random header each time */ - if (++calls == 1) - srand((unsigned)(time(NULL) ^ ZCR_SEED2)); - - while (rlen < (int)len) - buf[rlen++] = (rand() >> 7) & 0xff; - } - return rlen; -} - -int crypthead(const char *passwd, uint8_t *buf, int buf_size, uint32_t *pkeys, - const z_crc_t *pcrc_32_tab, uint8_t verify1, uint8_t verify2) -{ - uint8_t n = 0; /* index in random header */ - uint8_t header[RAND_HEAD_LEN-2]; /* random header */ - uint16_t t = 0; /* temporary */ - - if (buf_size < RAND_HEAD_LEN) - return 0; - - init_keys(passwd, pkeys, pcrc_32_tab); - - /* First generate RAND_HEAD_LEN-2 random bytes. */ - cryptrand(header, RAND_HEAD_LEN-2); - - /* Encrypt random header (last two bytes is high word of crc) */ - init_keys(passwd, pkeys, pcrc_32_tab); - - for (n = 0; n < RAND_HEAD_LEN-2; n++) - buf[n] = (uint8_t)zencode(pkeys, pcrc_32_tab, header[n], t); - - buf[n++] = (uint8_t)zencode(pkeys, pcrc_32_tab, verify1, t); - buf[n++] = (uint8_t)zencode(pkeys, pcrc_32_tab, verify2, t); - return n; -} - -#ifdef _MSC_VER -# pragma warning(pop) -#endif // _MSC_VER - -/***************************************************************************/ diff --git a/contrib/unzip/crypt.h b/contrib/unzip/crypt.h index 78146eb83..1cc41f19d 100644 --- a/contrib/unzip/crypt.h +++ b/contrib/unzip/crypt.h @@ -1,63 +1,132 @@ -/* crypt.h -- base code for traditional PKWARE encryption +/* crypt.h -- base code for crypt/uncrypt ZIPfile + + Version 1.01e, February 12th, 2005 Copyright (C) 1998-2005 Gilles Vollant - Modifications for Info-ZIP crypting - Copyright (C) 2003 Terry Thorsen - This code is a modified version of crypting code in Info-ZIP distribution + This code is a modified version of crypting code in Infozip distribution - Copyright (C) 1990-2000 Info-ZIP. All rights reserved. + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) - This program is distributed under the terms of the same license as zlib. - See the accompanying LICENSE file for the full text of the license. + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + + If you don't need crypting in your application, just define symbols + NOCRYPT and NOUNCRYPT. + + This code support the "Traditional PKWARE Encryption". + + The new AES encryption added on Zip format by Winzip (see the page + http://www.winzip.com/aes_info.htm ) and PKWare PKZip 5.x Strong + Encryption is not supported. */ -#ifndef _MINICRYPT_H -#define _MINICRYPT_H +#define CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8)) -#if ZLIB_VERNUM < 0x1270 -#if !defined(Z_U4) -typedef unsigned long z_crc_t; -#endif -#endif +/*********************************************************************** + * Return the next byte in the pseudo-random sequence + */ +static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab) +{ + unsigned temp; /* POTENTIAL BUG: temp*(temp^1) may overflow in an + * unpredictable manner on 16-bit systems; not a problem + * with any known compiler so far, though */ -#ifdef __cplusplus -extern "C" { -#endif + (void)pcrc_32_tab; + temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2; + return (int)(((temp * (temp ^ 1)) >> 8) & 0xff); +} -#define RAND_HEAD_LEN 12 +/*********************************************************************** + * Update the encryption keys with the next byte of plain text + */ +static int update_keys(unsigned long* pkeys,const z_crc_t* pcrc_32_tab,int c) +{ + (*(pkeys+0)) = CRC32((*(pkeys+0)), c); + (*(pkeys+1)) += (*(pkeys+0)) & 0xff; + (*(pkeys+1)) = (*(pkeys+1)) * 134775813L + 1; + { + register int keyshift = (int)((*(pkeys+1)) >> 24); + (*(pkeys+2)) = CRC32((*(pkeys+2)), keyshift); + } + return c; +} -/***************************************************************************/ + +/*********************************************************************** + * Initialize the encryption keys and the random header according to + * the given password. + */ +static void init_keys(const char* passwd,unsigned long* pkeys,const z_crc_t* pcrc_32_tab) +{ + *(pkeys+0) = 305419896L; + *(pkeys+1) = 591751049L; + *(pkeys+2) = 878082192L; + while (*passwd != '\0') { + update_keys(pkeys,pcrc_32_tab,(int)*passwd); + passwd++; + } +} #define zdecode(pkeys,pcrc_32_tab,c) \ - (update_keys(pkeys,pcrc_32_tab, c ^= decrypt_byte(pkeys))) + (update_keys(pkeys,pcrc_32_tab,c ^= decrypt_byte(pkeys,pcrc_32_tab))) #define zencode(pkeys,pcrc_32_tab,c,t) \ - (t = decrypt_byte(pkeys), update_keys(pkeys,pcrc_32_tab,c), t^(c)) + (t=decrypt_byte(pkeys,pcrc_32_tab), update_keys(pkeys,pcrc_32_tab,c), (Byte)t^(c)) -/***************************************************************************/ +#ifdef INCLUDECRYPTINGCODE_IFCRYPTALLOWED -/* Return the next byte in the pseudo-random sequence */ -uint8_t decrypt_byte(uint32_t *pkeys); +#define RAND_HEAD_LEN 12 + /* "last resort" source for second part of crypt seed pattern */ +# ifndef ZCR_SEED2 +# define ZCR_SEED2 3141592654UL /* use PI as default pattern */ +# endif -/* Update the encryption keys with the next byte of plain text */ -uint8_t update_keys(uint32_t *pkeys, const z_crc_t *pcrc_32_tab, int32_t c); +static unsigned crypthead(const char* passwd, /* password string */ + unsigned char* buf, /* where to write header */ + int bufSize, + unsigned long* pkeys, + const z_crc_t* pcrc_32_tab, + unsigned long crcForCrypting) +{ + unsigned n; /* index in random header */ + int t; /* temporary */ + int c; /* random byte */ + unsigned char header[RAND_HEAD_LEN-2]; /* random header */ + static unsigned calls = 0; /* ensure different random header each time */ -/* Initialize the encryption keys and the random header according to the given password. */ -void init_keys(const char *passwd, uint32_t *pkeys, const z_crc_t *pcrc_32_tab); + if (bufSize> 7) & 0xff; + header[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, c, t); + } + /* Encrypt random header (last two bytes is high word of crc) */ + init_keys(passwd, pkeys, pcrc_32_tab); + for (n = 0; n < RAND_HEAD_LEN-2; n++) + { + buf[n] = (unsigned char)zencode(pkeys, pcrc_32_tab, header[n], t); + } + buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 16) & 0xff, t); + buf[n++] = (unsigned char)zencode(pkeys, pcrc_32_tab, (int)(crcForCrypting >> 24) & 0xff, t); + return n; } -#endif #endif diff --git a/contrib/unzip/ioapi.c b/contrib/unzip/ioapi.c index d9ae01e7d..0ca29db6a 100644 --- a/contrib/unzip/ioapi.c +++ b/contrib/unzip/ioapi.c @@ -1,81 +1,75 @@ -/* ioapi.c -- IO base function header for compress/uncompress .zip - part of the MiniZip project +/* ioapi.h -- IO base function header for compress/uncompress .zip + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) - Copyright (C) 1998-2010 Gilles Vollant - http://www.winimage.com/zLibDll/minizip.html - Modifications for Zip64 support - Copyright (C) 2009-2010 Mathias Svensson - http://result42.com + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt - This program is distributed under the terms of the same license as zlib. - See the accompanying LICENSE file for the full text of the license. */ -#include -#include - -#if defined unix || defined __APPLE__ -#include -#include +#if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS))) + #define _CRT_SECURE_NO_WARNINGS #endif +#if defined(__APPLE__) || defined(IOAPI_NO_64) +// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions +#define FOPEN_FUNC(filename, mode) fopen(filename, mode) +#define FTELLO_FUNC(stream) ftello(stream) +#define FSEEKO_FUNC(stream, offset, origin) fseeko(stream, offset, origin) +#else +#define FOPEN_FUNC(filename, mode) fopen64(filename, mode) +#define FTELLO_FUNC(stream) ftello64(stream) +#define FSEEKO_FUNC(stream, offset, origin) fseeko64(stream, offset, origin) +#endif + + #include "ioapi.h" -#ifdef _WIN32 -# define snprintf _snprintf -#ifdef _MSC_VER -# pragma warning(push) -# pragma warning(disable : 4131 4100) -#endif -# ifdef __clang__ -# pragma clang diagnostic push -# pragma clang diagnostic ignored "-Wunused-parameter" -# endif -#endif // _WIN32 - - -voidpf call_zopen64(const zlib_filefunc64_32_def *pfilefunc, const void *filename, int mode) +voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode) { if (pfilefunc->zfile_func64.zopen64_file != NULL) - return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque, filename, mode); - return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque, (const char*)filename, mode); + return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode); + else + { + return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode); + } } -voidpf call_zopendisk64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, uint32_t number_disk, int mode) +long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin) { - if (pfilefunc->zfile_func64.zopendisk64_file != NULL) - return (*(pfilefunc->zfile_func64.zopendisk64_file)) (pfilefunc->zfile_func64.opaque, filestream, number_disk, mode); - return (*(pfilefunc->zopendisk32_file))(pfilefunc->zfile_func64.opaque, filestream, number_disk, mode); -} - -long call_zseek64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, uint64_t offset, int origin) -{ - uint32_t offset_truncated = 0; if (pfilefunc->zfile_func64.zseek64_file != NULL) return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin); - offset_truncated = (uint32_t)offset; - if (offset_truncated != offset) - return -1; - return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream, offset_truncated, origin); + else + { + uLong offsetTruncated = (uLong)offset; + if (offsetTruncated != offset) + return -1; + else + return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin); + } } -uint64_t call_ztell64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream) +ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream) { - uint64_t position; if (pfilefunc->zfile_func64.zseek64_file != NULL) - return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque, filestream); - position = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque, filestream); - if ((position) == UINT32_MAX) - return (uint64_t)-1; - return position; + return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream); + else + { + uLong tell_uLong = (uLong)(*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream); + if ((tell_uLong) == MAXU32) + return (ZPOS64_T)-1; + else + return tell_uLong; + } } -void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def *p_filefunc64_32, const zlib_filefunc_def *p_filefunc32) +void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32) { p_filefunc64_32->zfile_func64.zopen64_file = NULL; - p_filefunc64_32->zfile_func64.zopendisk64_file = NULL; p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file; - p_filefunc64_32->zopendisk32_file = p_filefunc32->zopendisk_file; p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file; p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file; p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file; @@ -88,255 +82,158 @@ void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def *p_filef p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file; } -static voidpf ZCALLBACK fopen_file_func(voidpf opaque, const char *filename, int mode); -static uint32_t ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uint32_t size); -static uint32_t ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void *buf, uint32_t size); -static uint64_t ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream); -static long ZCALLBACK fseek64_file_func(voidpf opaque, voidpf stream, uint64_t offset, int origin); -static int ZCALLBACK fclose_file_func(voidpf opaque, voidpf stream); -static int ZCALLBACK ferror_file_func(voidpf opaque, voidpf stream); -typedef struct -{ - FILE *file; - int filenameLength; - void *filename; -} FILE_IOPOSIX; -static voidpf file_build_ioposix(FILE *file, const char *filename) -{ - FILE_IOPOSIX *ioposix = NULL; - if (file == NULL) - return NULL; - ioposix = (FILE_IOPOSIX*)malloc(sizeof(FILE_IOPOSIX)); - ioposix->file = file; - ioposix->filenameLength = (int)strlen(filename) + 1; - ioposix->filename = (char*)malloc(ioposix->filenameLength * sizeof(char)); - memcpy((char*)ioposix->filename, filename, ioposix->filenameLength); - return (voidpf)ioposix; -} +static voidpf ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode)); +static uLong ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size)); +static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size)); +static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream)); +static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); +static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream)); +static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream)); -static voidpf ZCALLBACK fopen_file_func(voidpf opaque, const char *filename, int mode) +static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode) { FILE* file = NULL; - const char *mode_fopen = NULL; - if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ) + const char* mode_fopen = NULL; + (void)opaque; + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) mode_fopen = "rb"; - else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + else + if (mode & ZLIB_FILEFUNC_MODE_EXISTING) mode_fopen = "r+b"; - else if (mode & ZLIB_FILEFUNC_MODE_CREATE) + else + if (mode & ZLIB_FILEFUNC_MODE_CREATE) mode_fopen = "wb"; - if ((filename != NULL) && (mode_fopen != NULL)) - { + if ((filename!=NULL) && (mode_fopen != NULL)) file = fopen(filename, mode_fopen); - return file_build_ioposix(file, filename); - } return file; } -static voidpf ZCALLBACK fopen64_file_func(voidpf opaque, const void *filename, int mode) +static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode) { FILE* file = NULL; - const char *mode_fopen = NULL; - if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ) + const char* mode_fopen = NULL; + (void)opaque; + if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ) mode_fopen = "rb"; - else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) + else + if (mode & ZLIB_FILEFUNC_MODE_EXISTING) mode_fopen = "r+b"; - else if (mode & ZLIB_FILEFUNC_MODE_CREATE) + else + if (mode & ZLIB_FILEFUNC_MODE_CREATE) mode_fopen = "wb"; - if ((filename != NULL) && (mode_fopen != NULL)) - { - file = fopen64((const char*)filename, mode_fopen); - return file_build_ioposix(file, (const char*)filename); - } + if ((filename!=NULL) && (mode_fopen != NULL)) + file = FOPEN_FUNC((const char*)filename, mode_fopen); return file; } -static voidpf ZCALLBACK fopendisk64_file_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode) -{ - FILE_IOPOSIX *ioposix = NULL; - char *diskFilename = NULL; - voidpf ret = NULL; - int i = 0; - if (stream == NULL) - return NULL; - ioposix = (FILE_IOPOSIX*)stream; - diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char)); - strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength); - for (i = ioposix->filenameLength - 1; i >= 0; i -= 1) - { - if (diskFilename[i] != '.') - continue; - snprintf(&diskFilename[i], ioposix->filenameLength - i, ".z%02u", number_disk + 1); - break; - } - if (i >= 0) - ret = fopen64_file_func(opaque, diskFilename, mode); - free(diskFilename); +static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size) +{ + uLong ret; + (void)opaque; + ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream); return ret; } -static voidpf ZCALLBACK fopendisk_file_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode) +static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size) { - FILE_IOPOSIX *ioposix = NULL; - char *diskFilename = NULL; - voidpf ret = NULL; - int i = 0; - - if (stream == NULL) - return NULL; - ioposix = (FILE_IOPOSIX*)stream; - diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char)); - strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength); - for (i = ioposix->filenameLength - 1; i >= 0; i -= 1) - { - if (diskFilename[i] != '.') - continue; - snprintf(&diskFilename[i], ioposix->filenameLength - i, ".z%02u", number_disk + 1); - break; - } - if (i >= 0) - ret = fopen_file_func(opaque, diskFilename, mode); - free(diskFilename); + uLong ret; + (void)opaque; + ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream); return ret; } -static uint32_t ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uint32_t size) +static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream) { - FILE_IOPOSIX *ioposix = NULL; - uint32_t read = (uint32_t)-1; - if (stream == NULL) - return read; - ioposix = (FILE_IOPOSIX*)stream; - read = (uint32_t)fread(buf, 1, (size_t)size, ioposix->file); - return read; -} - -static uint32_t ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void *buf, uint32_t size) -{ - FILE_IOPOSIX *ioposix = NULL; - uint32_t written = (uint32_t)-1; - if (stream == NULL) - return written; - ioposix = (FILE_IOPOSIX*)stream; - written = (uint32_t)fwrite(buf, 1, (size_t)size, ioposix->file); - return written; -} - -static long ZCALLBACK ftell_file_func(voidpf opaque, voidpf stream) -{ - FILE_IOPOSIX *ioposix = NULL; - long ret = -1; - if (stream == NULL) - return ret; - ioposix = (FILE_IOPOSIX*)stream; - ret = ftell(ioposix->file); + long ret; + (void)opaque; + ret = ftell((FILE *)stream); return ret; } -static uint64_t ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream) + +static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream) { - FILE_IOPOSIX *ioposix = NULL; - uint64_t ret = (uint64_t)-1; - if (stream == NULL) - return ret; - ioposix = (FILE_IOPOSIX*)stream; - ret = ftello64(ioposix->file); + ZPOS64_T ret; + (void)opaque; + ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream); return ret; } -static long ZCALLBACK fseek_file_func(voidpf opaque, voidpf stream, uint32_t offset, int origin) +static long ZCALLBACK fseek_file_func (voidpf opaque, voidpf stream, uLong offset, int origin) { - FILE_IOPOSIX *ioposix = NULL; - int fseek_origin = 0; - long ret = 0; - - if (stream == NULL) - return -1; - ioposix = (FILE_IOPOSIX*)stream; - + int fseek_origin=0; + long ret; + (void)opaque; switch (origin) { - case ZLIB_FILEFUNC_SEEK_CUR: - fseek_origin = SEEK_CUR; - break; - case ZLIB_FILEFUNC_SEEK_END: - fseek_origin = SEEK_END; - break; - case ZLIB_FILEFUNC_SEEK_SET: - fseek_origin = SEEK_SET; - break; - default: - return -1; + case ZLIB_FILEFUNC_SEEK_CUR : + fseek_origin = SEEK_CUR; + break; + case ZLIB_FILEFUNC_SEEK_END : + fseek_origin = SEEK_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + fseek_origin = SEEK_SET; + break; + default: return -1; } - if (fseek(ioposix->file, offset, fseek_origin) != 0) + ret = 0; + if (fseek((FILE *)stream, (long)offset, fseek_origin) != 0) ret = -1; return ret; } -static long ZCALLBACK fseek64_file_func(voidpf opaque, voidpf stream, uint64_t offset, int origin) +static long ZCALLBACK fseek64_file_func (voidpf opaque, voidpf stream, ZPOS64_T offset, int origin) { - FILE_IOPOSIX *ioposix = NULL; - int fseek_origin = 0; - long ret = 0; - - if (stream == NULL) - return -1; - ioposix = (FILE_IOPOSIX*)stream; - + int fseek_origin=0; + long ret; + (void)opaque; switch (origin) { - case ZLIB_FILEFUNC_SEEK_CUR: - fseek_origin = SEEK_CUR; - break; - case ZLIB_FILEFUNC_SEEK_END: - fseek_origin = SEEK_END; - break; - case ZLIB_FILEFUNC_SEEK_SET: - fseek_origin = SEEK_SET; - break; - default: - return -1; + case ZLIB_FILEFUNC_SEEK_CUR : + fseek_origin = SEEK_CUR; + break; + case ZLIB_FILEFUNC_SEEK_END : + fseek_origin = SEEK_END; + break; + case ZLIB_FILEFUNC_SEEK_SET : + fseek_origin = SEEK_SET; + break; + default: return -1; } + ret = 0; - if (fseeko64(ioposix->file, offset, fseek_origin) != 0) - ret = -1; + if(FSEEKO_FUNC((FILE *)stream, (z_off_t)offset, fseek_origin) != 0) + ret = -1; return ret; } -static int ZCALLBACK fclose_file_func(voidpf opaque, voidpf stream) + +static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream) { - FILE_IOPOSIX *ioposix = NULL; - int ret = -1; - if (stream == NULL) - return ret; - ioposix = (FILE_IOPOSIX*)stream; - if (ioposix->filename != NULL) - free(ioposix->filename); - ret = fclose(ioposix->file); - free(ioposix); + int ret; + (void)opaque; + ret = fclose((FILE *)stream); return ret; } -static int ZCALLBACK ferror_file_func(voidpf opaque, voidpf stream) +static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream) { - FILE_IOPOSIX *ioposix = NULL; - int ret = -1; - if (stream == NULL) - return ret; - ioposix = (FILE_IOPOSIX*)stream; - ret = ferror(ioposix->file); + int ret; + (void)opaque; + ret = ferror((FILE *)stream); return ret; } -void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def) +void fill_fopen_filefunc (zlib_filefunc_def* pzlib_filefunc_def) { pzlib_filefunc_def->zopen_file = fopen_file_func; - pzlib_filefunc_def->zopendisk_file = fopendisk_file_func; pzlib_filefunc_def->zread_file = fread_file_func; pzlib_filefunc_def->zwrite_file = fwrite_file_func; pzlib_filefunc_def->ztell_file = ftell_file_func; @@ -346,10 +243,9 @@ void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def) pzlib_filefunc_def->opaque = NULL; } -void fill_fopen64_filefunc(zlib_filefunc64_def *pzlib_filefunc_def) +void fill_fopen64_filefunc (zlib_filefunc64_def* pzlib_filefunc_def) { pzlib_filefunc_def->zopen64_file = fopen64_file_func; - pzlib_filefunc_def->zopendisk64_file = fopendisk64_file_func; pzlib_filefunc_def->zread_file = fread_file_func; pzlib_filefunc_def->zwrite_file = fwrite_file_func; pzlib_filefunc_def->ztell64_file = ftell64_file_func; @@ -358,10 +254,3 @@ void fill_fopen64_filefunc(zlib_filefunc64_def *pzlib_filefunc_def) pzlib_filefunc_def->zerror_file = ferror_file_func; pzlib_filefunc_def->opaque = NULL; } - -#ifdef _MSC_VER -# pragma warning(pop) -# ifdef __clang__ -# pragma clang diagnostic pop -# endif -#endif // _MSC_VER diff --git a/contrib/unzip/ioapi.h b/contrib/unzip/ioapi.h index 0e49543e5..ae9ca7e83 100644 --- a/contrib/unzip/ioapi.h +++ b/contrib/unzip/ioapi.h @@ -1,142 +1,207 @@ /* ioapi.h -- IO base function header for compress/uncompress .zip - part of the MiniZip project + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) - Copyright (C) 1998-2010 Gilles Vollant - http://www.winimage.com/zLibDll/minizip.html - Modifications for Zip64 support - Copyright (C) 2009-2010 Mathias Svensson - http://result42.com + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications for Zip64 support + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + Changes + + Oct-2009 - Defined ZPOS64_T to fpos_t on windows and u_int64_t on linux. (might need to find a better why for this) + Oct-2009 - Change to fseeko64, ftello64 and fopen64 so large files would work on linux. + More if/def section may be needed to support other platforms + Oct-2009 - Defined fxxxx64 calls to normal fopen/ftell/fseek so they would compile on windows. + (but you should use iowin32.c for windows instead) - This program is distributed under the terms of the same license as zlib. - See the accompanying LICENSE file for the full text of the license. */ #ifndef _ZLIBIOAPI64_H #define _ZLIBIOAPI64_H +#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__)) + + // Linux needs this to support file operation on files larger then 4+GB + // But might need better if/def to select just the platforms that needs them. + + #ifndef __USE_FILE_OFFSET64 + #define __USE_FILE_OFFSET64 + #endif + #ifndef __USE_LARGEFILE64 + #define __USE_LARGEFILE64 + #endif + #ifndef _LARGEFILE64_SOURCE + #define _LARGEFILE64_SOURCE + #endif + #ifndef _FILE_OFFSET_BIT + #define _FILE_OFFSET_BIT 64 + #endif + +#endif + #include #include -#include - #include "zlib.h" #if defined(USE_FILE32API) -# define fopen64 fopen -# define ftello64 ftell -# define fseeko64 fseek +#define fopen64 fopen +#define ftello64 ftell +#define fseeko64 fseek #else -#if defined(_MSC_VER) -# define fopen64 fopen -# if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC))) -# define ftello64 _ftelli64 -# define fseeko64 _fseeki64 -# else /* old MSC */ -# define ftello64 ftell -# define fseeko64 fseek -# endif -#else -# define fopen64 fopen -# define ftello64 ftello -# define fseeko64 fseeko +#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) +#define fopen64 fopen +#define ftello64 ftello +#define fseeko64 fseeko #endif +#ifdef _MSC_VER + #define fopen64 fopen + #if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC))) + #define ftello64 _ftelli64 + #define fseeko64 _fseeki64 + #else // old MSC + #define ftello64 ftell + #define fseeko64 fseek + #endif +#endif +#endif + +/* +#ifndef ZPOS64_T + #ifdef _WIN32 + #define ZPOS64_T fpos_t + #else + #include + #define ZPOS64_T uint64_t + #endif +#endif +*/ + +#ifdef HAVE_MINIZIP64_CONF_H +#include "mz64conf.h" +#endif + +/* a type choosen by DEFINE */ +#ifdef HAVE_64BIT_INT_CUSTOM +typedef 64BIT_INT_CUSTOM_TYPE ZPOS64_T; +#else +#ifdef HAS_STDINT_H +#include "stdint.h" +typedef uint64_t ZPOS64_T; +#else + + + +#if defined(_MSC_VER) || defined(__BORLANDC__) +typedef unsigned __int64 ZPOS64_T; +#else +typedef unsigned long long int ZPOS64_T; +#endif +#endif +#endif + +/* Maximum unsigned 32-bit value used as placeholder for zip64 */ +#ifndef MAXU32 +#define MAXU32 (0xffffffff) #endif #ifdef __cplusplus extern "C" { #endif + #define ZLIB_FILEFUNC_SEEK_CUR (1) #define ZLIB_FILEFUNC_SEEK_END (2) #define ZLIB_FILEFUNC_SEEK_SET (0) -#define ZLIB_FILEFUNC_MODE_READ (1) -#define ZLIB_FILEFUNC_MODE_WRITE (2) -#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3) -#define ZLIB_FILEFUNC_MODE_EXISTING (4) -#define ZLIB_FILEFUNC_MODE_CREATE (8) +#define ZLIB_FILEFUNC_MODE_READ (1) +#define ZLIB_FILEFUNC_MODE_WRITE (2) +#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3) + +#define ZLIB_FILEFUNC_MODE_EXISTING (4) +#define ZLIB_FILEFUNC_MODE_CREATE (8) + #ifndef ZCALLBACK -# if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || \ - defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK) -# define ZCALLBACK CALLBACK -# else -# define ZCALLBACK -# endif + #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK) + #define ZCALLBACK CALLBACK + #else + #define ZCALLBACK + #endif #endif -typedef voidpf (ZCALLBACK *open_file_func) (voidpf opaque, const char *filename, int mode); -typedef voidpf (ZCALLBACK *opendisk_file_func) (voidpf opaque, voidpf stream, uint32_t number_disk, int mode); -typedef uint32_t (ZCALLBACK *read_file_func) (voidpf opaque, voidpf stream, void* buf, uint32_t size); -typedef uint32_t (ZCALLBACK *write_file_func) (voidpf opaque, voidpf stream, const void *buf, uint32_t size); -typedef int (ZCALLBACK *close_file_func) (voidpf opaque, voidpf stream); -typedef int (ZCALLBACK *error_file_func) (voidpf opaque, voidpf stream); -typedef long (ZCALLBACK *tell_file_func) (voidpf opaque, voidpf stream); -typedef long (ZCALLBACK *seek_file_func) (voidpf opaque, voidpf stream, uint32_t offset, int origin); + + +typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode)); +typedef uLong (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size)); +typedef uLong (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size)); +typedef int (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream)); +typedef int (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream)); + +typedef long (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream)); +typedef long (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin)); + /* here is the "old" 32 bits structure structure */ typedef struct zlib_filefunc_def_s { open_file_func zopen_file; - opendisk_file_func zopendisk_file; read_file_func zread_file; write_file_func zwrite_file; tell_file_func ztell_file; seek_file_func zseek_file; close_file_func zclose_file; - error_file_func zerror_file; + testerror_file_func zerror_file; voidpf opaque; } zlib_filefunc_def; -typedef uint64_t (ZCALLBACK *tell64_file_func) (voidpf opaque, voidpf stream); -typedef long (ZCALLBACK *seek64_file_func) (voidpf opaque, voidpf stream, uint64_t offset, int origin); -typedef voidpf (ZCALLBACK *open64_file_func) (voidpf opaque, const void *filename, int mode); -typedef voidpf (ZCALLBACK *opendisk64_file_func)(voidpf opaque, voidpf stream, uint32_t number_disk, int mode); +typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream)); +typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin)); +typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode)); typedef struct zlib_filefunc64_def_s { - open64_file_func zopen64_file; - opendisk64_file_func zopendisk64_file; - read_file_func zread_file; - write_file_func zwrite_file; - tell64_file_func ztell64_file; - seek64_file_func zseek64_file; - close_file_func zclose_file; - error_file_func zerror_file; - voidpf opaque; + open64_file_func zopen64_file; + read_file_func zread_file; + write_file_func zwrite_file; + tell64_file_func ztell64_file; + seek64_file_func zseek64_file; + close_file_func zclose_file; + testerror_file_func zerror_file; + voidpf opaque; } zlib_filefunc64_def; -void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def); -void fill_fopen64_filefunc(zlib_filefunc64_def *pzlib_filefunc_def); +void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def)); +void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def)); /* now internal definition, only for zip.c and unzip.h */ typedef struct zlib_filefunc64_32_def_s { zlib_filefunc64_def zfile_func64; open_file_func zopen32_file; - opendisk_file_func zopendisk32_file; tell_file_func ztell32_file; seek_file_func zseek32_file; } zlib_filefunc64_32_def; -#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) -#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) -/*#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))*/ -/*#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))*/ -#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream)) -#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream)) -voidpf call_zopen64(const zlib_filefunc64_32_def *pfilefunc,const void*filename, int mode); -voidpf call_zopendisk64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, uint32_t number_disk, int mode); -long call_zseek64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, uint64_t offset, int origin); -uint64_t call_ztell64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream); +#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) +#define ZWRITE64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zwrite_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) +//#define ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream)) +//#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode)) +#define ZCLOSE64(filefunc,filestream) ((*((filefunc).zfile_func64.zclose_file)) ((filefunc).zfile_func64.opaque,filestream)) +#define ZERROR64(filefunc,filestream) ((*((filefunc).zfile_func64.zerror_file)) ((filefunc).zfile_func64.opaque,filestream)) -void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def *p_filefunc64_32, const zlib_filefunc_def *p_filefunc32); +voidpf call_zopen64 OF((const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)); +long call_zseek64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)); +ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)); -#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode))) -#define ZOPENDISK64(filefunc,filestream,diskn,mode) (call_zopendisk64((&(filefunc)),(filestream),(diskn),(mode))) -#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream))) -#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode))) +void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32); + +#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode))) +#define ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream))) +#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode))) #ifdef __cplusplus } diff --git a/contrib/unzip/unzip.c b/contrib/unzip/unzip.c index 4bc6773ef..e703549d2 100644 --- a/contrib/unzip/unzip.c +++ b/contrib/unzip/unzip.c @@ -1,524 +1,782 @@ /* unzip.c -- IO for uncompress .zip files using zlib Version 1.1, February 14h, 2010 - part of the MiniZip project + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) - Copyright (C) 1998-2010 Gilles Vollant - http://www.winimage.com/zLibDll/minizip.html - Modifications of Unzip for Zip64 - Copyright (C) 2007-2008 Even Rouault - Modifications for Zip64 support on both zip and unzip - Copyright (C) 2009-2010 Mathias Svensson - http://result42.com - Modifications for AES, PKWARE disk spanning - Copyright (C) 2010-2014 Nathan Moinvaziri + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications of Unzip for Zip64 + Copyright (C) 2007-2008 Even Rouault + + Modifications for Zip64 support on both zip and unzip + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + + ------------------------------------------------------------------------------------ + Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of + compatibility with older software. The following is from the original crypt.c. + Code woven in by Terry Thorsen 1/2003. + + Copyright (c) 1990-2000 Info-ZIP. All rights reserved. + + See the accompanying file LICENSE, version 2000-Apr-09 or later + (the contents of which are also included in zip.h) for terms of use. + If, for some reason, all these files are missing, the Info-ZIP license + also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html + + crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h] + + The encryption/decryption parts of this source code (as opposed to the + non-echoing password parts) were originally written in Europe. The + whole source package can be freely distributed, including from the USA. + (Prior to January 2000, re-export from the US was a violation of US law.) + + This encryption code is a direct transcription of the algorithm from + Roger Schlafly, described by Phil Katz in the file appnote.txt. This + file (appnote.txt) is distributed with the PKZIP program (even in the + version without encryption capabilities). + + ------------------------------------------------------------------------------------ + + Changes in unzip.c + + 2007-2008 - Even Rouault - Addition of cpl_unzGetCurrentFileZStreamPos + 2007-2008 - Even Rouault - Decoration of symbol names unz* -> cpl_unz* + 2007-2008 - Even Rouault - Remove old C style function prototypes + 2007-2008 - Even Rouault - Add unzip support for ZIP64 + + Copyright (C) 2007-2008 Even Rouault + + + Oct-2009 - Mathias Svensson - Removed cpl_* from symbol names (Even Rouault added them but since this is now moved to a new project (minizip64) I renamed them again). + Oct-2009 - Mathias Svensson - Fixed problem if uncompressed size was > 4G and compressed size was <4G + should only read the compressed/uncompressed size from the Zip64 format if + the size from normal header was 0xFFFFFFFF + Oct-2009 - Mathias Svensson - Applied some bug fixes from paches recived from Gilles Vollant + Oct-2009 - Mathias Svensson - Applied support to unzip files with compression mathod BZIP2 (bzip2 lib is required) + Patch created by Daniel Borca + + Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer + + Copyright (C) 1998 - 2010 Gilles Vollant, Even Rouault, Mathias Svensson - This program is distributed under the terms of the same license as zlib. - See the accompanying LICENSE file for the full text of the license. */ + #include #include -#include #include -#include + +#ifndef NOUNCRYPT + #define NOUNCRYPT +#endif #include "zlib.h" #include "unzip.h" -#ifdef HAVE_AES -# define AES_METHOD (99) -# define AES_PWVERIFYSIZE (2) -# define AES_MAXSALTLENGTH (16) -# define AES_AUTHCODESIZE (10) -# define AES_HEADERSIZE (11) -# define AES_KEYSIZE(mode) (64 + (mode * 64)) - -# include "aes/aes.h" -# include "aes/fileenc.h" +#ifdef STDC +# include +# include +# include #endif -#ifdef HAVE_APPLE_COMPRESSION -# include +#ifdef NO_ERRNO_H + extern int errno; +#else +# include #endif -#ifndef NOUNCRYPT -# include "crypt.h" + +#ifndef local +# define local static +#endif +/* compile with -Dlocal if your debugger can't find static symbols */ + + +#ifndef CASESENSITIVITYDEFAULT_NO +# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) +# define CASESENSITIVITYDEFAULT_NO +# endif #endif -#define DISKHEADERMAGIC (0x08074b50) -#define LOCALHEADERMAGIC (0x04034b50) -#define CENTRALHEADERMAGIC (0x02014b50) -#define ENDHEADERMAGIC (0x06054b50) -#define ZIP64ENDHEADERMAGIC (0x06064b50) -#define ZIP64ENDLOCHEADERMAGIC (0x07064b50) - -#define SIZECENTRALDIRITEM (0x2e) -#define SIZECENTRALHEADERLOCATOR (0x14) -#define SIZEZIPLOCALHEADER (0x1e) - -#ifndef BUFREADCOMMENT -# define BUFREADCOMMENT (0x400) -#endif #ifndef UNZ_BUFSIZE -# define UNZ_BUFSIZE (UINT16_MAX) +#define UNZ_BUFSIZE (16384) #endif + #ifndef UNZ_MAXFILENAMEINZIP -# define UNZ_MAXFILENAMEINZIP (256) +#define UNZ_MAXFILENAMEINZIP (256) #endif #ifndef ALLOC -# define ALLOC(size) (malloc(size)) +# define ALLOC(size) (malloc(size)) #endif #ifndef TRYFREE -# define TRYFREE(p) {if (p) free(p);} +# define TRYFREE(p) { free(p);} #endif -#ifdef _MSC_VER -# pragma warning(push) -# pragma warning(disable : 4131 4244 4189 4245) -#endif // _MSC_VER +#define SIZECENTRALDIRITEM (0x2e) +#define SIZEZIPLOCALHEADER (0x1e) -static const char unz_copyright[] = + +const char unz_copyright[] = " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; -/* unz_file_info_internal contain internal info about a file in zipfile*/ +/* unz_file_info_interntal contain internal info about a file in zipfile*/ typedef struct unz_file_info64_internal_s { - uint64_t offset_curfile; /* relative offset of local header 8 bytes */ - uint64_t byte_before_the_zipfile; /* byte before the zipfile, (>0 for sfx) */ -#ifdef HAVE_AES - uint8_t aes_encryption_mode; - uint16_t aes_compression_method; - uint16_t aes_version; -#endif + ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */ } unz_file_info64_internal; -/* file_in_zip_read_info_s contain internal information about a file in zipfile */ + +/* file_in_zip_read_info_s contain internal information about a file in zipfile, + when reading and decompress it */ typedef struct { - uint8_t *read_buffer; /* internal buffer for compressed data */ - z_stream stream; /* zLib stream structure for inflate */ + char *read_buffer; /* internal buffer for compressed data */ + z_stream stream; /* zLib stream structure for inflate */ + #ifdef HAVE_BZIP2 - bz_stream bstream; /* bzLib stream structure for bziped */ + bz_stream bstream; /* bzLib stream structure for bziped */ #endif -#ifdef HAVE_APPLE_COMPRESSION - compression_stream astream; /* libcompression stream structure */ -#endif -#ifdef HAVE_AES - fcrypt_ctx aes_ctx; -#endif - uint64_t pos_in_zipfile; /* position in byte on the zipfile, for fseek */ - uint8_t stream_initialised; /* flag set if stream structure is initialised */ - uint64_t offset_local_extrafield; /* offset of the local extra field */ - uint16_t size_local_extrafield; /* size of the local extra field */ - uint64_t pos_local_extrafield; /* position in the local extra field in read */ - uint64_t total_out_64; + ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/ + uLong stream_initialised; /* flag set if stream structure is initialised*/ - uint32_t crc32; /* crc32 of all data uncompressed */ - uint32_t crc32_wait; /* crc32 we must obtain after decompress all */ - uint64_t rest_read_compressed; /* number of byte to be decompressed */ - uint64_t rest_read_uncompressed; /* number of byte to be obtained after decomp */ + ZPOS64_T offset_local_extrafield;/* offset of the local extra field */ + uInt size_local_extrafield;/* size of the local extra field */ + ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/ + ZPOS64_T total_out_64; + uLong crc32; /* crc32 of all data uncompressed */ + uLong crc32_wait; /* crc32 we must obtain after decompress all */ + ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */ + ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/ zlib_filefunc64_32_def z_filefunc; - - voidpf filestream; /* io structore of the zipfile */ - uint16_t compression_method; /* compression method (0==store) */ - uint64_t byte_before_the_zipfile; /* byte before the zipfile, (>0 for sfx) */ - int raw; + voidpf filestream; /* io structore of the zipfile */ + uLong compression_method; /* compression method (0==store) */ + ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + int raw; } file_in_zip64_read_info_s; -/* unz64_s contain internal information about the zipfile */ + +/* unz64_s contain internal information about the zipfile +*/ typedef struct { zlib_filefunc64_32_def z_filefunc; + int is64bitOpenFunction; + voidpf filestream; /* io structore of the zipfile */ + unz_global_info64 gi; /* public global information */ + ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + ZPOS64_T num_file; /* number of the current file in the zipfile*/ + ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/ + ZPOS64_T current_file_ok; /* flag about the usability of the current file*/ + ZPOS64_T central_pos; /* position of the beginning of the central dir*/ - voidpf filestream; /* io structure of the current zipfile */ - voidpf filestream_with_CD; /* io structure of the disk with the central directory */ + ZPOS64_T size_central_dir; /* size of the central directory */ + ZPOS64_T offset_central_dir; /* offset of start of central directory with + respect to the starting disk number */ - unz_global_info64 gi; /* public global information */ + unz_file_info64 cur_file_info; /* public info about the current file in zip*/ + unz_file_info64_internal cur_file_info_internal; /* private info about it*/ + file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current + file if we are decompressing it */ + int encrypted; - uint64_t byte_before_the_zipfile; /* byte before the zipfile, (>0 for sfx) */ - uint64_t num_file; /* number of the current file in the zipfile */ - uint64_t pos_in_central_dir; /* pos of the current file in the central dir */ - uint64_t current_file_ok; /* flag about the usability of the current file */ - uint64_t central_pos; /* position of the beginning of the central dir */ - uint32_t number_disk; /* number of the current disk, used for spanning ZIP */ - uint64_t size_central_dir; /* size of the central directory */ - uint64_t offset_central_dir; /* offset of start of central directory with - respect to the starting disk number */ + int isZip64; - unz_file_info64 cur_file_info; /* public info about the current file in zip*/ - unz_file_info64_internal cur_file_info_internal; - /* private info about it*/ - file_in_zip64_read_info_s *pfile_in_zip_read; - /* structure about the current file if we are decompressing it */ - int is_zip64; /* is the current file zip64 */ -#ifndef NOUNCRYPT - uint32_t keys[3]; /* keys defining the pseudo-random sequence */ - const z_crc_t *pcrc_32_tab; -#endif +# ifndef NOUNCRYPT + unsigned long keys[3]; /* keys defining the pseudo-random sequence */ + const z_crc_t* pcrc_32_tab; +# endif } unz64_s; -/* Read a byte from a gz_stream; Return EOF for end of file. */ -static int unzReadUInt8(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint8_t *value) + +#ifndef NOUNCRYPT +#include "crypt.h" +#endif + +/* =========================================================================== + Read a byte from a gz_stream; update next_in and avail_in. Return EOF + for end of file. + IN assertion: the stream s has been successfully opened for reading. +*/ + + +local int unz64local_getByte OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + int *pi)); + +local int unz64local_getByte(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi) { - uint8_t c = 0; - if (ZREAD64(*pzlib_filefunc_def, filestream, &c, 1) == 1) + unsigned char c; + int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1); + if (err==1) { - *value = (uint8_t)c; + *pi = (int)c; return UNZ_OK; } - *value = 0; - if (ZERROR64(*pzlib_filefunc_def, filestream)) - return UNZ_ERRNO; - return UNZ_EOF; + else + { + if (ZERROR64(*pzlib_filefunc_def,filestream)) + return UNZ_ERRNO; + else + return UNZ_EOF; + } } -static int unzReadUInt16(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint16_t *value) + +/* =========================================================================== + Reads a long in LSB order from the given gz_stream. Sets +*/ +local int unz64local_getShort OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int unz64local_getShort (const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX) { - uint16_t x; - uint8_t c = 0; - int err = UNZ_OK; + uLong x ; + int i = 0; + int err; - err = unzReadUInt8(pzlib_filefunc_def, filestream, &c); - x = (uint16_t)c; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &c); - x |= ((uint16_t)c) << 8; + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; - if (err == UNZ_OK) - *value = x; + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((uLong)i)<<8; + + if (err==UNZ_OK) + *pX = x; else - *value = 0; + *pX = 0; return err; } -static int unzReadUInt32(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint32_t *value) +local int unz64local_getLong OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX)); + +local int unz64local_getLong (const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + uLong *pX) { - uint32_t x = 0; - uint8_t c = 0; - int err = UNZ_OK; + uLong x ; + int i = 0; + int err; - err = unzReadUInt8(pzlib_filefunc_def, filestream, &c); - x = (uint32_t)c; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &c); - x |= ((uint32_t)c) << 8; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &c); - x |= ((uint32_t)c) << 16; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &c); - x += ((uint32_t)c) << 24; + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (uLong)i; - if (err == UNZ_OK) - *value = x; + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((uLong)i)<<8; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((uLong)i)<<16; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x += ((uLong)i)<<24; + + if (err==UNZ_OK) + *pX = x; else - *value = 0; + *pX = 0; return err; } -static int unzReadUInt64(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, uint64_t *value) +local int unz64local_getLong64 OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + ZPOS64_T *pX)); + + +local int unz64local_getLong64 (const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream, + ZPOS64_T *pX) { - uint64_t x = 0; - uint8_t i = 0; - int err = UNZ_OK; + ZPOS64_T x ; + int i = 0; + int err; - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x = (uint64_t)i; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x |= ((uint64_t)i) << 8; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x |= ((uint64_t)i) << 16; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x |= ((uint64_t)i) << 24; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x |= ((uint64_t)i) << 32; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x |= ((uint64_t)i) << 40; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x |= ((uint64_t)i) << 48; - if (err == UNZ_OK) - err = unzReadUInt8(pzlib_filefunc_def, filestream, &i); - x |= ((uint64_t)i) << 56; + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x = (ZPOS64_T)i; - if (err == UNZ_OK) - *value = x; + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<8; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<16; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<24; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<32; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<40; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<48; + + if (err==UNZ_OK) + err = unz64local_getByte(pzlib_filefunc_def,filestream,&i); + x |= ((ZPOS64_T)i)<<56; + + if (err==UNZ_OK) + *pX = x; else - *value = 0; + *pX = 0; return err; } -/* Locate the Central directory of a zip file (at the end, just before the global comment) */ -static uint64_t unzSearchCentralDir(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream) +/* My own strcmpi / strcasecmp */ +local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2) { - uint8_t buf[BUFREADCOMMENT + 4]; - uint64_t file_size = 0; - uint64_t back_read = 4; - uint64_t max_back = UINT16_MAX; /* maximum size of global comment */ - uint64_t pos_found = 0; - uint32_t read_size = 0; - uint64_t read_pos = 0; - uint32_t i = 0; + for (;;) + { + char c1=*(fileName1++); + char c2=*(fileName2++); + if ((c1>='a') && (c1<='z')) + c1 -= 0x20; + if ((c2>='a') && (c2<='z')) + c2 -= 0x20; + if (c1=='\0') + return ((c2=='\0') ? 0 : -1); + if (c2=='\0') + return 1; + if (c1c2) + return 1; + } +} - if (ZSEEK64(*pzlib_filefunc_def, filestream, 0, ZLIB_FILEFUNC_SEEK_END) != 0) + +#ifdef CASESENSITIVITYDEFAULT_NO +#define CASESENSITIVITYDEFAULTVALUE 2 +#else +#define CASESENSITIVITYDEFAULTVALUE 1 +#endif + +#ifndef STRCMPCASENOSENTIVEFUNCTION +#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal +#endif + +/* + Compare two filename (fileName1,fileName2). + If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) + If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + or strcasecmp) + If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + (like 1 on Unix, 2 on Windows) + +*/ +extern int ZEXPORT unzStringFileNameCompare (const char* fileName1, + const char* fileName2, + int iCaseSensitivity) + +{ + if (iCaseSensitivity==0) + iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE; + + if (iCaseSensitivity==1) + return strcmp(fileName1,fileName2); + + return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2); +} + +#ifndef BUFREADCOMMENT +#define BUFREADCOMMENT (0x400) +#endif + +/* + Locate the Central directory of a zipfile (at the end, just before + the global comment) +*/ +local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); +local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) +{ + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound=0; + + if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) return 0; - file_size = ZTELL64(*pzlib_filefunc_def, filestream); - if (max_back > file_size) - max_back = file_size; + uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); - while (back_read < max_back) + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackRead max_back) - back_read = max_back; + uLong uReadSize; + ZPOS64_T uReadPos ; + int i; + if (uBackRead+BUFREADCOMMENT>uMaxBack) + uBackRead = uMaxBack; else - back_read += BUFREADCOMMENT; + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; - read_pos = file_size - back_read; - read_size = ((BUFREADCOMMENT + 4) < (file_size - read_pos)) ? - (BUFREADCOMMENT + 4) : (uint32_t)(file_size - read_pos); - - if (ZSEEK64(*pzlib_filefunc_def, filestream, read_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) - break; - if (ZREAD64(*pzlib_filefunc_def, filestream, buf, read_size) != read_size) + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); + if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) break; - for (i = read_size - 3; (i--) > 0;) - if (((*(buf+i)) == (ENDHEADERMAGIC & 0xff)) && - ((*(buf+i+1)) == (ENDHEADERMAGIC >> 8 & 0xff)) && - ((*(buf+i+2)) == (ENDHEADERMAGIC >> 16 & 0xff)) && - ((*(buf+i+3)) == (ENDHEADERMAGIC >> 24 & 0xff))) + if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && + ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) { - pos_found = read_pos+i; + uPosFound = uReadPos+(unsigned)i; break; } - if (pos_found != 0) + if (uPosFound!=0) break; } - - return pos_found; + TRYFREE(buf); + return uPosFound; } -/* Locate the Central directory 64 of a zipfile (at the end, just before the global comment) */ -static uint64_t unzSearchCentralDir64(const zlib_filefunc64_32_def *pzlib_filefunc_def, voidpf filestream, - const uint64_t endcentraloffset) + +/* + Locate the Central directory 64 of a zipfile (at the end, just before + the global comment) +*/ +local ZPOS64_T unz64local_SearchCentralDir64 OF(( + const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream)); + +local ZPOS64_T unz64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, + voidpf filestream) { - uint64_t offset = 0; - uint32_t value32 = 0; + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound=0; + uLong uL; + ZPOS64_T relativeOffset; + + if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); + + if (uMaxBack>uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); + if (buf==NULL) + return 0; + + uBackRead = 4; + while (uBackReaduMaxBack) + uBackRead = uMaxBack; + else + uBackRead+=BUFREADCOMMENT; + uReadPos = uSizeFile-uBackRead ; + + uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? + (BUFREADCOMMENT+4) : (uLong)(uSizeFile-uReadPos); + if (ZSEEK64(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) + break; + + if (ZREAD64(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) + break; + + for (i=(int)uReadSize-3; (i--)>0;) + if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && + ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07)) + { + uPosFound = uReadPos+(unsigned)i; + break; + } + + if (uPosFound!=0) + break; + } + TRYFREE(buf); + if (uPosFound == 0) + return 0; /* Zip64 end of central directory locator */ - if (ZSEEK64(*pzlib_filefunc_def, filestream, endcentraloffset - SIZECENTRALHEADERLOCATOR, ZLIB_FILEFUNC_SEEK_SET) != 0) + if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0) return 0; - /* Read locator signature */ - if (unzReadUInt32(pzlib_filefunc_def, filestream, &value32) != UNZ_OK) + /* the signature, already checked */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) return 0; - if (value32 != ZIP64ENDLOCHEADERMAGIC) + + /* number of the disk with the start of the zip64 end of central directory */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) return 0; - /* Number of the disk with the start of the zip64 end of central directory */ - if (unzReadUInt32(pzlib_filefunc_def, filestream, &value32) != UNZ_OK) + if (uL != 0) return 0; - /* Relative offset of the zip64 end of central directory record */ - if (unzReadUInt64(pzlib_filefunc_def, filestream, &offset) != UNZ_OK) + + /* relative offset of the zip64 end of central directory record */ + if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK) return 0; - /* Total number of disks */ - if (unzReadUInt32(pzlib_filefunc_def, filestream, &value32) != UNZ_OK) + + /* total number of disks */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) return 0; + if (uL != 1) + return 0; + /* Goto end of central directory record */ - if (ZSEEK64(*pzlib_filefunc_def, filestream, offset, ZLIB_FILEFUNC_SEEK_SET) != 0) - return 0; - /* The signature */ - if (unzReadUInt32(pzlib_filefunc_def, filestream, &value32) != UNZ_OK) - return 0; - if (value32 != ZIP64ENDHEADERMAGIC) + if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) return 0; - return offset; + /* the signature */ + if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) + return 0; + + if (uL != 0x06064b50) + return 0; + + return relativeOffset; } -static unzFile unzOpenInternal(const void *path, zlib_filefunc64_32_def *pzlib_filefunc64_32_def) +/* + Open a Zip file. path contain the full pathname (by example, + on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer + "zlib/zlib114.zip". + If the zipfile cannot be opened (file doesn't exist or in not valid), the + return value is NULL. + Else, the return value is a unzFile Handle, usable with other function + of this unzip package. +*/ +local unzFile unzOpenInternal (const void *path, + zlib_filefunc64_32_def* pzlib_filefunc64_32_def, + int is64bitOpenFunction) { unz64_s us; - unz64_s *s = NULL; - uint64_t central_pos = 0; - uint64_t central_pos64 = 0; - uint64_t number_entry_CD = 0; - uint16_t value16 = 0; - uint32_t value32 = 0; - uint64_t value64 = 0; - voidpf filestream = NULL; - int err = UNZ_OK; + unz64_s *s; + ZPOS64_T central_pos; + uLong uL; - if (unz_copyright[0] != ' ') + uLong number_disk; /* number of the current dist, used for + spaning ZIP, unsupported, always 0*/ + uLong number_disk_with_CD; /* number the the disk with central dir, used + for spaning ZIP, unsupported, always 0*/ + ZPOS64_T number_entry_CD; /* total number of entries in + the central dir + (same than number_entry on nospan) */ + + int err=UNZ_OK; + + if (unz_copyright[0]!=' ') return NULL; - us.filestream = NULL; - us.filestream_with_CD = NULL; us.z_filefunc.zseek32_file = NULL; us.z_filefunc.ztell32_file = NULL; - - if (pzlib_filefunc64_32_def == NULL) + if (pzlib_filefunc64_32_def==NULL) fill_fopen64_filefunc(&us.z_filefunc.zfile_func64); else us.z_filefunc = *pzlib_filefunc64_32_def; + us.is64bitOpenFunction = is64bitOpenFunction; - us.filestream = ZOPEN64(us.z_filefunc, path, ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_EXISTING); - if (us.filestream == NULL) + + us.filestream = ZOPEN64(us.z_filefunc, + path, + ZLIB_FILEFUNC_MODE_READ | + ZLIB_FILEFUNC_MODE_EXISTING); + if (us.filestream==NULL) return NULL; - us.filestream_with_CD = us.filestream; - us.is_zip64 = 0; - - /* Search for end of central directory header */ - central_pos = unzSearchCentralDir(&us.z_filefunc, us.filestream); + central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream); if (central_pos) { - if (ZSEEK64(us.z_filefunc, us.filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) - err = UNZ_ERRNO; + uLong uS; + ZPOS64_T uL64; - /* The signature, already checked */ - if (unzReadUInt32(&us.z_filefunc, us.filestream, &value32) != UNZ_OK) - err = UNZ_ERRNO; - /* Number of this disk */ - if (unzReadUInt16(&us.z_filefunc, us.filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - us.number_disk = value16; - /* Number of the disk with the start of the central directory */ - if (unzReadUInt16(&us.z_filefunc, us.filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - us.gi.number_disk_with_CD = value16; - /* Total number of entries in the central directory on this disk */ - if (unzReadUInt16(&us.z_filefunc, us.filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - us.gi.number_entry = value16; - /* Total number of entries in the central directory */ - if (unzReadUInt16(&us.z_filefunc, us.filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - number_entry_CD = value16; - if (number_entry_CD != us.gi.number_entry) - err = UNZ_BADZIPFILE; - /* Size of the central directory */ - if (unzReadUInt32(&us.z_filefunc, us.filestream, &value32) != UNZ_OK) - err = UNZ_ERRNO; - us.size_central_dir = value32; - /* Offset of start of central directory with respect to the starting disk number */ - if (unzReadUInt32(&us.z_filefunc, us.filestream, &value32) != UNZ_OK) - err = UNZ_ERRNO; - us.offset_central_dir = value32; - /* Zipfile comment length */ - if (unzReadUInt16(&us.z_filefunc, us.filestream, &us.gi.size_comment) != UNZ_OK) - err = UNZ_ERRNO; + us.isZip64 = 1; - if (err == UNZ_OK) - { - /* Search for Zip64 end of central directory header */ - central_pos64 = unzSearchCentralDir64(&us.z_filefunc, us.filestream, central_pos); - if (central_pos64) - { - central_pos = central_pos64; - us.is_zip64 = 1; + if (ZSEEK64(us.z_filefunc, us.filestream, + central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; - if (ZSEEK64(us.z_filefunc, us.filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) - err = UNZ_ERRNO; + /* the signature, already checked */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; - /* the signature, already checked */ - if (unzReadUInt32(&us.z_filefunc, us.filestream, &value32) != UNZ_OK) - err = UNZ_ERRNO; - /* size of zip64 end of central directory record */ - if (unzReadUInt64(&us.z_filefunc, us.filestream, &value64) != UNZ_OK) - err = UNZ_ERRNO; - /* version made by */ - if (unzReadUInt16(&us.z_filefunc, us.filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - /* version needed to extract */ - if (unzReadUInt16(&us.z_filefunc, us.filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - /* number of this disk */ - if (unzReadUInt32(&us.z_filefunc, us.filestream, &us.number_disk) != UNZ_OK) - err = UNZ_ERRNO; - /* number of the disk with the start of the central directory */ - if (unzReadUInt32(&us.z_filefunc, us.filestream, &us.gi.number_disk_with_CD) != UNZ_OK) - err = UNZ_ERRNO; - /* total number of entries in the central directory on this disk */ - if (unzReadUInt64(&us.z_filefunc, us.filestream, &us.gi.number_entry) != UNZ_OK) - err = UNZ_ERRNO; - /* total number of entries in the central directory */ - if (unzReadUInt64(&us.z_filefunc, us.filestream, &number_entry_CD) != UNZ_OK) - err = UNZ_ERRNO; - if (number_entry_CD != us.gi.number_entry) - err = UNZ_BADZIPFILE; - /* size of the central directory */ - if (unzReadUInt64(&us.z_filefunc, us.filestream, &us.size_central_dir) != UNZ_OK) - err = UNZ_ERRNO; - /* offset of start of central directory with respect to the starting disk number */ - if (unzReadUInt64(&us.z_filefunc, us.filestream, &us.offset_central_dir) != UNZ_OK) - err = UNZ_ERRNO; - } - else if ((us.gi.number_entry == UINT16_MAX) || (us.size_central_dir == UINT16_MAX) || (us.offset_central_dir == UINT32_MAX)) - err = UNZ_BADZIPFILE; - } + /* size of zip64 end of central directory record */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK) + err=UNZ_ERRNO; + + /* version made by */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) + err=UNZ_ERRNO; + + /* version needed to extract */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of this disk */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of the disk with the start of the central directory */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central directory on this disk */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central directory */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + if ((number_entry_CD!=us.gi.number_entry) || + (number_disk_with_CD!=0) || + (number_disk!=0)) + err=UNZ_BADZIPFILE; + + /* size of the central directory */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK) + err=UNZ_ERRNO; + + /* offset of start of central directory with respect to the + starting disk number */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK) + err=UNZ_ERRNO; + + us.gi.size_comment = 0; } else - err = UNZ_ERRNO; + { + central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream); + if (central_pos==0) + err=UNZ_ERRNO; - if ((err == UNZ_OK) && (central_pos < us.offset_central_dir + us.size_central_dir)) - err = UNZ_BADZIPFILE; + us.isZip64 = 0; - if (err != UNZ_OK) + if (ZSEEK64(us.z_filefunc, us.filestream, + central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; + + /* the signature, already checked */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of this disk */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) + err=UNZ_ERRNO; + + /* number of the disk with the start of the central directory */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) + err=UNZ_ERRNO; + + /* total number of entries in the central dir on this disk */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + us.gi.number_entry = uL; + + /* total number of entries in the central dir */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + number_entry_CD = uL; + + if ((number_entry_CD!=us.gi.number_entry) || + (number_disk_with_CD!=0) || + (number_disk!=0)) + err=UNZ_BADZIPFILE; + + /* size of the central directory */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + us.size_central_dir = uL; + + /* offset of start of central directory with respect to the + starting disk number */ + if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) + err=UNZ_ERRNO; + us.offset_central_dir = uL; + + /* zipfile comment length */ + if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK) + err=UNZ_ERRNO; + } + + if ((central_pos 0xffffffff) && (us.offset_central_dir < 0xffffffff)) - us.offset_central_dir = central_pos - us.size_central_dir;*/ - - us.byte_before_the_zipfile = central_pos - (us.offset_central_dir + us.size_central_dir); + us.byte_before_the_zipfile = central_pos - + (us.offset_central_dir+us.size_central_dir); us.central_pos = central_pos; us.pfile_in_zip_read = NULL; + us.encrypted = 0; - s = (unz64_s*)ALLOC(sizeof(unz64_s)); - if (s != NULL) + + s=(unz64_s*)ALLOC(sizeof(unz64_s)); + if( s != NULL) { - *s = us; + *s=us; unzGoToFirstFile((unzFile)s); } return (unzFile)s; } -extern unzFile ZEXPORT unzOpen2(const char *path, zlib_filefunc_def *pzlib_filefunc32_def) + +extern unzFile ZEXPORT unzOpen2 (const char *path, + zlib_filefunc_def* pzlib_filefunc32_def) { if (pzlib_filefunc32_def != NULL) { zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; - fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill, pzlib_filefunc32_def); - return unzOpenInternal(path, &zlib_filefunc64_32_def_fill); + fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def); + return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0); } - return unzOpenInternal(path, NULL); + else + return unzOpenInternal(path, NULL, 0); } -extern unzFile ZEXPORT unzOpen2_64(const void *path, zlib_filefunc64_def *pzlib_filefunc_def) +extern unzFile ZEXPORT unzOpen2_64 (const void *path, + zlib_filefunc64_def* pzlib_filefunc_def) { if (pzlib_filefunc_def != NULL) { @@ -526,515 +784,683 @@ extern unzFile ZEXPORT unzOpen2_64(const void *path, zlib_filefunc64_def *pzlib_ zlib_filefunc64_32_def_fill.zfile_func64 = *pzlib_filefunc_def; zlib_filefunc64_32_def_fill.ztell32_file = NULL; zlib_filefunc64_32_def_fill.zseek32_file = NULL; - return unzOpenInternal(path, &zlib_filefunc64_32_def_fill); + return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 1); } - return unzOpenInternal(path, NULL); + else + return unzOpenInternal(path, NULL, 1); } -extern unzFile ZEXPORT unzOpen(const char *path) +extern unzFile ZEXPORT unzOpen (const char *path) { - return unzOpenInternal(path, NULL); + return unzOpenInternal(path, NULL, 0); } -extern unzFile ZEXPORT unzOpen64(const void *path) +extern unzFile ZEXPORT unzOpen64 (const void *path) { - return unzOpenInternal(path, NULL); + return unzOpenInternal(path, NULL, 1); } -extern int ZEXPORT unzClose(unzFile file) +/* + Close a ZipFile opened with unzOpen. + If there is files inside the .Zip opened with unzOpenCurrentFile (see later), + these files MUST be closed with unzCloseCurrentFile before call unzClose. + return UNZ_OK if there is no problem. */ +extern int ZEXPORT unzClose (unzFile file) { - unz64_s *s; - if (file == NULL) + unz64_s* s; + if (file==NULL) return UNZ_PARAMERROR; - s = (unz64_s*)file; + s=(unz64_s*)file; - if (s->pfile_in_zip_read != NULL) + if (s->pfile_in_zip_read!=NULL) unzCloseCurrentFile(file); - if ((s->filestream != NULL) && (s->filestream != s->filestream_with_CD)) - ZCLOSE64(s->z_filefunc, s->filestream); - if (s->filestream_with_CD != NULL) - ZCLOSE64(s->z_filefunc, s->filestream_with_CD); - - s->filestream = NULL; - s->filestream_with_CD = NULL; + ZCLOSE64(s->z_filefunc, s->filestream); TRYFREE(s); return UNZ_OK; } -/* Goto to the next available disk for spanned archives */ -static int unzGoToNextDisk(unzFile file) + +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. */ +extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info) { - unz64_s *s; - uint32_t number_disk_next = 0; - - s = (unz64_s*)file; - if (s == NULL) + unz64_s* s; + if (file==NULL) return UNZ_PARAMERROR; - number_disk_next = s->number_disk; - - if ((s->pfile_in_zip_read != NULL) && (s->pfile_in_zip_read->rest_read_uncompressed > 0)) - /* We are currently reading a file and we need the next sequential disk */ - number_disk_next += 1; - else - /* Goto the disk for the current file */ - number_disk_next = s->cur_file_info.disk_num_start; - - if (number_disk_next != s->number_disk) - { - /* Switch disks */ - if ((s->filestream != NULL) && (s->filestream != s->filestream_with_CD)) - ZCLOSE64(s->z_filefunc, s->filestream); - - if (number_disk_next == s->gi.number_disk_with_CD) - { - s->filestream = s->filestream_with_CD; - } - else - { - s->filestream = ZOPENDISK64(s->z_filefunc, s->filestream_with_CD, number_disk_next, - ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_EXISTING); - } - - if (s->filestream == NULL) - return UNZ_ERRNO; - - s->number_disk = number_disk_next; - } - + s=(unz64_s*)file; + *pglobal_info=s->gi; return UNZ_OK; } -extern int ZEXPORT unzGetGlobalInfo(unzFile file, unz_global_info* pglobal_info32) +extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32) { - unz64_s *s = NULL; - if (file == NULL) + unz64_s* s; + if (file==NULL) return UNZ_PARAMERROR; - s = (unz64_s*)file; - - pglobal_info32->number_entry = (uint32_t)s->gi.number_entry; + s=(unz64_s*)file; + /* to do : check if number_entry is not truncated */ + pglobal_info32->number_entry = (uLong)s->gi.number_entry; pglobal_info32->size_comment = s->gi.size_comment; - pglobal_info32->number_disk_with_CD = s->gi.number_disk_with_CD; return UNZ_OK; } - -extern int ZEXPORT unzGetGlobalInfo64(unzFile file, unz_global_info64 *pglobal_info) +/* + Translate date/time from Dos format to tm_unz (readable more easilty) +*/ +local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm) { - unz64_s *s = NULL; - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - *pglobal_info = s->gi; - return UNZ_OK; + ZPOS64_T uDate; + uDate = (ZPOS64_T)(ulDosDate>>16); + ptm->tm_mday = (int)(uDate&0x1f) ; + ptm->tm_mon = (int)((((uDate)&0x1E0)/0x20)-1) ; + ptm->tm_year = (int)(((uDate&0x0FE00)/0x0200)+1980) ; + + ptm->tm_hour = (int) ((ulDosDate &0xF800)/0x800); + ptm->tm_min = (int) ((ulDosDate&0x7E0)/0x20) ; + ptm->tm_sec = (int) (2*(ulDosDate&0x1f)) ; } -extern int ZEXPORT unzGetGlobalComment(unzFile file, char *comment, uint16_t comment_size) +/* + Get Info about the current file in the zipfile, with internal only info +*/ +local int unz64local_GetCurrentFileInfoInternal OF((unzFile file, + unz_file_info64 *pfile_info, + unz_file_info64_internal + *pfile_info_internal, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); + +local int unz64local_GetCurrentFileInfoInternal (unzFile file, + unz_file_info64 *pfile_info, + unz_file_info64_internal + *pfile_info_internal, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize) { - unz64_s *s = NULL; - uint16_t bytes_to_read = comment_size; - if (file == NULL) - return (int)UNZ_PARAMERROR; - s = (unz64_s*)file; - - if (bytes_to_read > s->gi.size_comment) - bytes_to_read = s->gi.size_comment; - - if (ZSEEK64(s->z_filefunc, s->filestream_with_CD, s->central_pos + 22, ZLIB_FILEFUNC_SEEK_SET) != 0) - return UNZ_ERRNO; - - if (bytes_to_read > 0) - { - *comment = 0; - if (ZREAD64(s->z_filefunc, s->filestream_with_CD, comment, bytes_to_read) != bytes_to_read) - return UNZ_ERRNO; - } - - if ((comment != NULL) && (comment_size > s->gi.size_comment)) - *(comment + s->gi.size_comment) = 0; - - return (int)bytes_to_read; -} - -static int unzGetCurrentFileInfoField(unzFile file, uint32_t *seek, void *field, uint16_t field_size, uint16_t size_file_field, int null_terminated_field) -{ - unz64_s *s = NULL; - uint32_t bytes_to_read = 0; - int err = UNZ_OK; - - if (file == NULL) - return (int)UNZ_PARAMERROR; - s = (unz64_s*)file; - - /* Read field */ - if (field != NULL) - { - if (size_file_field < field_size) - { - if (null_terminated_field) - *((char *)field+size_file_field) = 0; - - bytes_to_read = size_file_field; - } - else - bytes_to_read = field_size; - - if (*seek != 0) - { - if (ZSEEK64(s->z_filefunc, s->filestream_with_CD, *seek, ZLIB_FILEFUNC_SEEK_CUR) == 0) - *seek = 0; - else - err = UNZ_ERRNO; - } - - if ((size_file_field > 0) && (field_size > 0)) - { - if (ZREAD64(s->z_filefunc, s->filestream_with_CD, field, bytes_to_read) != bytes_to_read) - err = UNZ_ERRNO; - } - *seek += size_file_field - bytes_to_read; - } - else - { - *seek += size_file_field; - } - - return err; -} - -/* Get info about the current file in the zipfile, with internal only info */ -static int unzGetCurrentFileInfoInternal(unzFile file, unz_file_info64 *pfile_info, - unz_file_info64_internal *pfile_info_internal, char *filename, uint16_t filename_size, void *extrafield, - uint16_t extrafield_size, char *comment, uint16_t comment_size) -{ - unz64_s *s = NULL; + unz64_s* s; unz_file_info64 file_info; unz_file_info64_internal file_info_internal; - uint32_t magic = 0; - uint64_t current_pos = 0; - uint32_t seek = 0; - uint32_t extra_pos = 0; - uint16_t extra_header_id = 0; - uint16_t extra_data_size = 0; - uint16_t value16 = 0; - uint32_t value32 = 0; - uint64_t value64 = 0; - int err = UNZ_OK; + int err=UNZ_OK; + uLong uMagic; + long lSeek=0; + uLong uL; - if (file == NULL) + if (file==NULL) return UNZ_PARAMERROR; - s = (unz64_s*)file; + s=(unz64_s*)file; + if (ZSEEK64(s->z_filefunc, s->filestream, + s->pos_in_central_dir+s->byte_before_the_zipfile, + ZLIB_FILEFUNC_SEEK_SET)!=0) + err=UNZ_ERRNO; - if (ZSEEK64(s->z_filefunc, s->filestream_with_CD, - s->pos_in_central_dir + s->byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0) - err = UNZ_ERRNO; - /* Check the magic */ - if (err == UNZ_OK) + /* we check the magic */ + if (err==UNZ_OK) { - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &magic) != UNZ_OK) - err = UNZ_ERRNO; - else if (magic != CENTRALHEADERMAGIC) - err = UNZ_BADZIPFILE; + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) + err=UNZ_ERRNO; + else if (uMagic!=0x02014b50) + err=UNZ_BADZIPFILE; } - /* Read central directory header */ - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.version) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.version_needed) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.flag) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.compression_method) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &file_info.dos_date) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &file_info.crc) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &value32) != UNZ_OK) - err = UNZ_ERRNO; - file_info.compressed_size = value32; - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &value32) != UNZ_OK) - err = UNZ_ERRNO; - file_info.uncompressed_size = value32; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.size_filename) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.size_file_extra) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.size_file_comment) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &value16) != UNZ_OK) - err = UNZ_ERRNO; - file_info.disk_num_start = value16; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &file_info.internal_fa) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &file_info.external_fa) != UNZ_OK) - err = UNZ_ERRNO; - /* Relative offset of local header */ - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &value32) != UNZ_OK) - err = UNZ_ERRNO; + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK) + err=UNZ_ERRNO; - file_info.size_file_extra_internal = 0; - file_info.disk_offset = value32; - file_info_internal.offset_curfile = value32; -#ifdef HAVE_AES - file_info_internal.aes_compression_method = 0; - file_info_internal.aes_encryption_mode = 0; - file_info_internal.aes_version = 0; -#endif + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK) + err=UNZ_ERRNO; - if (err == UNZ_OK) - err = unzGetCurrentFileInfoField(file, &seek, filename, filename_size, file_info.size_filename, 1); + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK) + err=UNZ_ERRNO; - /* Read extrafield */ - if (err == UNZ_OK) - err = unzGetCurrentFileInfoField(file, &seek, extrafield, extrafield_size, file_info.size_file_extra, 0); + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK) + err=UNZ_ERRNO; - if ((err == UNZ_OK) && (file_info.size_file_extra != 0)) + if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK) + err=UNZ_ERRNO; + + unz64local_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date); + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) + err=UNZ_ERRNO; + file_info.compressed_size = uL; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) + err=UNZ_ERRNO; + file_info.uncompressed_size = uL; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK) + err=UNZ_ERRNO; + + // relative offset of local header + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) + err=UNZ_ERRNO; + file_info_internal.offset_curfile = uL; + + lSeek+=file_info.size_filename; + if ((err==UNZ_OK) && (szFileName!=NULL)) { - if (seek != 0) + uLong uSizeRead ; + if (file_info.size_filenamez_filefunc, s->filestream_with_CD, seek, ZLIB_FILEFUNC_SEEK_CUR) == 0) - seek = 0; + *(szFileName+file_info.size_filename)='\0'; + uSizeRead = file_info.size_filename; + } + else + uSizeRead = fileNameBufferSize; + + if ((file_info.size_filename>0) && (fileNameBufferSize>0)) + if (ZREAD64(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + lSeek -= uSizeRead; + } + + // Read extrafield + if ((err==UNZ_OK) && (extraField!=NULL)) + { + ZPOS64_T uSizeRead ; + if (file_info.size_file_extraz_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; else - err = UNZ_ERRNO; + err=UNZ_ERRNO; } - /* We are going to parse the extra field so we need to move back */ - current_pos = ZTELL64(s->z_filefunc, s->filestream_with_CD); - if (current_pos < file_info.size_file_extra) - err = UNZ_ERRNO; - current_pos -= file_info.size_file_extra; - if (ZSEEK64(s->z_filefunc, s->filestream_with_CD, current_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) - err = UNZ_ERRNO; + if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0)) + if (ZREAD64(s->z_filefunc, s->filestream,extraField,(uLong)uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; - while ((err != UNZ_ERRNO) && (extra_pos < file_info.size_file_extra)) + lSeek += file_info.size_file_extra - (uLong)uSizeRead; + } + else + lSeek += file_info.size_file_extra; + + + if ((err==UNZ_OK) && (file_info.size_file_extra != 0)) + { + uLong acc = 0; + + // since lSeek now points to after the extra field we need to move back + lSeek -= file_info.size_file_extra; + + if (lSeek!=0) { - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &extra_header_id) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &extra_data_size) != UNZ_OK) - err = UNZ_ERRNO; + if (ZSEEK64(s->z_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; + else + err=UNZ_ERRNO; + } + + while(acc < file_info.size_file_extra) + { + uLong headerId; + uLong dataSize; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&headerId) != UNZ_OK) + err=UNZ_ERRNO; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&dataSize) != UNZ_OK) + err=UNZ_ERRNO; /* ZIP64 extra fields */ - if (extra_header_id == 0x0001) + if (headerId == 0x0001) { - /* Subtract size of ZIP64 field, since ZIP64 is handled internally */ - file_info.size_file_extra_internal += 2 + 2 + extra_data_size; + uLong uL1; + + if(file_info.uncompressed_size == MAXU32) + { + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info.compressed_size == MAXU32) + { + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info_internal.offset_curfile == MAXU32) + { + /* Relative Header offset */ + if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK) + err=UNZ_ERRNO; + } + + if(file_info.disk_num_start == MAXU32) + { + /* Disk Start Number */ + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL1) != UNZ_OK) + err=UNZ_ERRNO; + } - if (file_info.uncompressed_size == UINT32_MAX) - { - if (unzReadUInt64(&s->z_filefunc, s->filestream_with_CD, &file_info.uncompressed_size) != UNZ_OK) - err = UNZ_ERRNO; - } - if (file_info.compressed_size == UINT32_MAX) - { - if (unzReadUInt64(&s->z_filefunc, s->filestream_with_CD, &file_info.compressed_size) != UNZ_OK) - err = UNZ_ERRNO; - } - if (file_info_internal.offset_curfile == UINT32_MAX) - { - /* Relative Header offset */ - if (unzReadUInt64(&s->z_filefunc, s->filestream_with_CD, &value64) != UNZ_OK) - err = UNZ_ERRNO; - file_info_internal.offset_curfile = value64; - file_info.disk_offset = value64; - } - if (file_info.disk_num_start == UINT32_MAX) - { - /* Disk Start Number */ - if (unzReadUInt32(&s->z_filefunc, s->filestream_with_CD, &file_info.disk_num_start) != UNZ_OK) - err = UNZ_ERRNO; - } } -#ifdef HAVE_AES - /* AES header */ - else if (extra_header_id == 0x9901) - { - uint8_t value8 = 0; - - /* Subtract size of AES field, since AES is handled internally */ - file_info.size_file_extra_internal += 2 + 2 + extra_data_size; - - /* Verify version info */ - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &value16) != UNZ_OK) - err = UNZ_ERRNO; - /* Support AE-1 and AE-2 */ - if (value16 != 1 && value16 != 2) - err = UNZ_ERRNO; - file_info_internal.aes_version = value16; - if (unzReadUInt8(&s->z_filefunc, s->filestream_with_CD, &value8) != UNZ_OK) - err = UNZ_ERRNO; - if ((char)value8 != 'A') - err = UNZ_ERRNO; - if (unzReadUInt8(&s->z_filefunc, s->filestream_with_CD, &value8) != UNZ_OK) - err = UNZ_ERRNO; - if ((char)value8 != 'E') - err = UNZ_ERRNO; - /* Get AES encryption strength and actual compression method */ - if (unzReadUInt8(&s->z_filefunc, s->filestream_with_CD, &value8) != UNZ_OK) - err = UNZ_ERRNO; - file_info_internal.aes_encryption_mode = value8; - if (unzReadUInt16(&s->z_filefunc, s->filestream_with_CD, &value16) != UNZ_OK) - err = UNZ_ERRNO; - file_info_internal.aes_compression_method = value16; - } -#endif else { - if (ZSEEK64(s->z_filefunc, s->filestream_with_CD,extra_data_size, ZLIB_FILEFUNC_SEEK_CUR) != 0) - err = UNZ_ERRNO; + if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0) + err=UNZ_ERRNO; } - extra_pos += 2 + 2 + extra_data_size; + acc += 2 + 2 + dataSize; } } - if (file_info.disk_num_start == s->gi.number_disk_with_CD) - file_info_internal.byte_before_the_zipfile = s->byte_before_the_zipfile; + if ((err==UNZ_OK) && (szComment!=NULL)) + { + uLong uSizeRead ; + if (file_info.size_file_commentz_filefunc, s->filestream,(ZPOS64_T)lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0) + lSeek=0; + else + err=UNZ_ERRNO; + } + + if ((file_info.size_file_comment>0) && (commentBufferSize>0)) + if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead) + err=UNZ_ERRNO; + lSeek+=file_info.size_file_comment - uSizeRead; + } else - file_info_internal.byte_before_the_zipfile = 0; + lSeek+=file_info.size_file_comment; - if (err == UNZ_OK) - err = unzGetCurrentFileInfoField(file, &seek, comment, comment_size, file_info.size_file_comment, 1); - if ((err == UNZ_OK) && (pfile_info != NULL)) - *pfile_info = file_info; - if ((err == UNZ_OK) && (pfile_info_internal != NULL)) - *pfile_info_internal = file_info_internal; + if ((err==UNZ_OK) && (pfile_info!=NULL)) + *pfile_info=file_info; + + if ((err==UNZ_OK) && (pfile_info_internal!=NULL)) + *pfile_info_internal=file_info_internal; return err; } -extern int ZEXPORT unzGetCurrentFileInfo(unzFile file, unz_file_info *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size) + + +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. +*/ +extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file, + unz_file_info64 * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) { + return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL, + szFileName,fileNameBufferSize, + extraField,extraFieldBufferSize, + szComment,commentBufferSize); +} + +extern int ZEXPORT unzGetCurrentFileInfo (unzFile file, + unz_file_info * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) +{ + int err; unz_file_info64 file_info64; - int err = UNZ_OK; - - err = unzGetCurrentFileInfoInternal(file, &file_info64, NULL, filename, filename_size, - extrafield, extrafield_size, comment, comment_size); - - if ((err == UNZ_OK) && (pfile_info != NULL)) + err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL, + szFileName,fileNameBufferSize, + extraField,extraFieldBufferSize, + szComment,commentBufferSize); + if ((err==UNZ_OK) && (pfile_info != NULL)) { pfile_info->version = file_info64.version; pfile_info->version_needed = file_info64.version_needed; pfile_info->flag = file_info64.flag; pfile_info->compression_method = file_info64.compression_method; - pfile_info->dos_date = file_info64.dos_date; + pfile_info->dosDate = file_info64.dosDate; pfile_info->crc = file_info64.crc; pfile_info->size_filename = file_info64.size_filename; - pfile_info->size_file_extra = file_info64.size_file_extra - file_info64.size_file_extra_internal; + pfile_info->size_file_extra = file_info64.size_file_extra; pfile_info->size_file_comment = file_info64.size_file_comment; - pfile_info->disk_num_start = (uint16_t)file_info64.disk_num_start; + pfile_info->disk_num_start = file_info64.disk_num_start; pfile_info->internal_fa = file_info64.internal_fa; pfile_info->external_fa = file_info64.external_fa; - pfile_info->compressed_size = (uint32_t)file_info64.compressed_size; - pfile_info->uncompressed_size = (uint32_t)file_info64.uncompressed_size; + pfile_info->tmu_date = file_info64.tmu_date, + + + pfile_info->compressed_size = (uLong)file_info64.compressed_size; + pfile_info->uncompressed_size = (uLong)file_info64.uncompressed_size; + + } + return err; +} +/* + Set the current file of the zipfile to the first file. + return UNZ_OK if there is no problem +*/ +extern int ZEXPORT unzGoToFirstFile (unzFile file) +{ + int err=UNZ_OK; + unz64_s* s; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + s->pos_in_central_dir=s->offset_central_dir; + s->num_file=0; + err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} + +/* + Set the current file of the zipfile to the next file. + return UNZ_OK if there is no problem + return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. +*/ +extern int ZEXPORT unzGoToNextFile (unzFile file) +{ + unz64_s* s; + int err; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */ + if (s->num_file+1==s->gi.number_entry) + return UNZ_END_OF_LIST_OF_FILE; + + s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + + s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ; + s->num_file++; + err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + s->current_file_ok = (err == UNZ_OK); + return err; +} + + +/* + Try locate the file szFileName in the zipfile. + For the iCaseSensitivity signification, see unzStringFileNameCompare + + return value : + UNZ_OK if the file is found. It becomes the current file. + UNZ_END_OF_LIST_OF_FILE if the file is not found +*/ +extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity) +{ + unz64_s* s; + int err; + + /* We remember the 'current' position in the file so that we can jump + * back there if we fail. + */ + unz_file_info64 cur_file_infoSaved; + unz_file_info64_internal cur_file_info_internalSaved; + ZPOS64_T num_fileSaved; + ZPOS64_T pos_in_central_dirSaved; + + + if (file==NULL) + return UNZ_PARAMERROR; + + if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP) + return UNZ_PARAMERROR; + + s=(unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + + /* Save the current state */ + num_fileSaved = s->num_file; + pos_in_central_dirSaved = s->pos_in_central_dir; + cur_file_infoSaved = s->cur_file_info; + cur_file_info_internalSaved = s->cur_file_info_internal; + + err = unzGoToFirstFile(file); + + while (err == UNZ_OK) + { + char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1]; + err = unzGetCurrentFileInfo64(file,NULL, + szCurrentFileName,sizeof(szCurrentFileName)-1, + NULL,0,NULL,0); + if (err == UNZ_OK) + { + if (unzStringFileNameCompare(szCurrentFileName, + szFileName,iCaseSensitivity)==0) + return UNZ_OK; + err = unzGoToNextFile(file); + } + } + + /* We failed, so restore the state of the 'current file' to where we + * were. + */ + s->num_file = num_fileSaved ; + s->pos_in_central_dir = pos_in_central_dirSaved ; + s->cur_file_info = cur_file_infoSaved; + s->cur_file_info_internal = cur_file_info_internalSaved; + return err; +} + + +/* +/////////////////////////////////////////// +// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net) +// I need random access +// +// Further optimization could be realized by adding an ability +// to cache the directory in memory. The goal being a single +// comprehensive file read to put the file I need in a memory. +*/ + +/* +typedef struct unz_file_pos_s +{ + ZPOS64_T pos_in_zip_directory; // offset in file + ZPOS64_T num_of_file; // # of file +} unz_file_pos; +*/ + +extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) +{ + unz64_s* s; + + if (file==NULL || file_pos==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + + file_pos->pos_in_zip_directory = s->pos_in_central_dir; + file_pos->num_of_file = s->num_file; + + return UNZ_OK; +} + +extern int ZEXPORT unzGetFilePos( + unzFile file, + unz_file_pos* file_pos) +{ + unz64_file_pos file_pos64; + int err = unzGetFilePos64(file,&file_pos64); + if (err==UNZ_OK) + { + file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory; + file_pos->num_of_file = (uLong)file_pos64.num_of_file; } return err; } -extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file, unz_file_info64 * pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size) +extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos) { - return unzGetCurrentFileInfoInternal(file, pfile_info, NULL, filename, filename_size, - extrafield, extrafield_size, comment,comment_size); + unz64_s* s; + int err; + + if (file==NULL || file_pos==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + + /* jump to the right spot */ + s->pos_in_central_dir = file_pos->pos_in_zip_directory; + s->num_file = file_pos->num_of_file; + + /* set the current file */ + err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); + /* return results */ + s->current_file_ok = (err == UNZ_OK); + return err; } -/* Read the local header of the current zipfile. Check the coherency of the local header and info in the - end of central directory about this file store in *piSizeVar the size of extra info in local header - (filename and size of extra field data) */ -static int unzCheckCurrentFileCoherencyHeader(unz64_s *s, uint32_t *psize_variable, uint64_t *poffset_local_extrafield, - uint16_t *psize_local_extrafield) +extern int ZEXPORT unzGoToFilePos( + unzFile file, + unz_file_pos* file_pos) { - uint32_t magic = 0; - uint16_t value16 = 0; - uint32_t value32 = 0; - uint32_t flags = 0; - uint16_t size_filename = 0; - uint16_t size_extra_field = 0; - uint16_t compression_method = 0; - int err = UNZ_OK; + unz64_file_pos file_pos64; + if (file_pos == NULL) + return UNZ_PARAMERROR; - if (psize_variable == NULL) - return UNZ_PARAMERROR; - *psize_variable = 0; - if (poffset_local_extrafield == NULL) - return UNZ_PARAMERROR; + file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory; + file_pos64.num_of_file = file_pos->num_of_file; + return unzGoToFilePos64(file,&file_pos64); +} + +/* +// Unzip Helper Functions - should be here? +/////////////////////////////////////////// +*/ + +/* + Read the local header of the current zipfile + Check the coherency of the local header and info in the end of central + directory about this file + store in *piSizeVar the size of extra info in local header + (filename and size of extra field data) +*/ +local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar, + ZPOS64_T * poffset_local_extrafield, + uInt * psize_local_extrafield) +{ + uLong uMagic,uData,uFlags; + uLong size_filename; + uLong size_extra_field; + int err=UNZ_OK; + + *piSizeVar = 0; *poffset_local_extrafield = 0; - if (psize_local_extrafield == NULL) - return UNZ_PARAMERROR; *psize_local_extrafield = 0; - err = unzGoToNextDisk((unzFile)s); - if (err != UNZ_OK) - return err; - - if (ZSEEK64(s->z_filefunc, s->filestream, s->cur_file_info_internal.offset_curfile + - s->cur_file_info_internal.byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0) + if (ZSEEK64(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile + + s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0) return UNZ_ERRNO; - if (err == UNZ_OK) + + if (err==UNZ_OK) { - if (unzReadUInt32(&s->z_filefunc, s->filestream, &magic) != UNZ_OK) - err = UNZ_ERRNO; - else if (magic != LOCALHEADERMAGIC) - err = UNZ_BADZIPFILE; + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK) + err=UNZ_ERRNO; + else if (uMagic!=0x04034b50) + err=UNZ_BADZIPFILE; } - if (unzReadUInt16(&s->z_filefunc, s->filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - if (unzReadUInt16(&s->z_filefunc, s->filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - flags = value16; - if (unzReadUInt16(&s->z_filefunc, s->filestream, &value16) != UNZ_OK) - err = UNZ_ERRNO; - else if ((err == UNZ_OK) && (value16 != s->cur_file_info.compression_method)) - err = UNZ_BADZIPFILE; + if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) + err=UNZ_ERRNO; +/* + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion)) + err=UNZ_BADZIPFILE; +*/ + if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK) + err=UNZ_ERRNO; - compression_method = s->cur_file_info.compression_method; -#ifdef HAVE_AES - if (compression_method == AES_METHOD) - compression_method = s->cur_file_info_internal.aes_compression_method; -#endif + if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method)) + err=UNZ_BADZIPFILE; - if ((err == UNZ_OK) && (compression_method != 0) && (compression_method != Z_DEFLATED)) - { -#ifdef HAVE_BZIP2 - if (compression_method != Z_BZIP2ED) -#endif - err = UNZ_BADZIPFILE; - } + if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) && +/* #ifdef HAVE_BZIP2 */ + (s->cur_file_info.compression_method!=Z_BZIP2ED) && +/* #endif */ + (s->cur_file_info.compression_method!=Z_DEFLATED)) + err=UNZ_BADZIPFILE; - if (unzReadUInt32(&s->z_filefunc, s->filestream, &value32) != UNZ_OK) /* date/time */ - err = UNZ_ERRNO; - if (unzReadUInt32(&s->z_filefunc, s->filestream, &value32) != UNZ_OK) /* crc */ - err = UNZ_ERRNO; - else if ((err == UNZ_OK) && (value32 != s->cur_file_info.crc) && ((flags & 8) == 0)) - err = UNZ_BADZIPFILE; - if (unzReadUInt32(&s->z_filefunc, s->filestream, &value32) != UNZ_OK) /* size compr */ - err = UNZ_ERRNO; - else if ((value32 != UINT32_MAX) && (err == UNZ_OK) && (value32 != s->cur_file_info.compressed_size) && ((flags & 8) == 0)) - err = UNZ_BADZIPFILE; - if (unzReadUInt32(&s->z_filefunc, s->filestream, &value32) != UNZ_OK) /* size uncompr */ - err = UNZ_ERRNO; - else if ((value32 != UINT32_MAX) && (err == UNZ_OK) && (value32 != s->cur_file_info.uncompressed_size) && ((flags & 8) == 0)) - err = UNZ_BADZIPFILE; - if (unzReadUInt16(&s->z_filefunc, s->filestream, &size_filename) != UNZ_OK) - err = UNZ_ERRNO; - else if ((err == UNZ_OK) && (size_filename != s->cur_file_info.size_filename)) - err = UNZ_BADZIPFILE; + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */ + err=UNZ_ERRNO; - *psize_variable += size_filename; + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */ + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; - if (unzReadUInt16(&s->z_filefunc, s->filestream, &size_extra_field) != UNZ_OK) - err = UNZ_ERRNO; + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */ + err=UNZ_ERRNO; + else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; - *poffset_local_extrafield = s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + size_filename; - *psize_local_extrafield = size_extra_field; - *psize_variable += size_extra_field; + if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */ + err=UNZ_ERRNO; + else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0)) + err=UNZ_BADZIPFILE; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK) + err=UNZ_ERRNO; + else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename)) + err=UNZ_BADZIPFILE; + + *piSizeVar += (uInt)size_filename; + + if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK) + err=UNZ_ERRNO; + *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile + + SIZEZIPLOCALHEADER + size_filename; + *psize_local_extrafield = (uInt)size_extra_field; + + *piSizeVar += (uInt)size_extra_field; return err; } @@ -1043,68 +1469,56 @@ static int unzCheckCurrentFileCoherencyHeader(unz64_s *s, uint32_t *psize_variab Open for reading data the current file in the zipfile. If there is no error and the file is opened, the return value is UNZ_OK. */ -extern int ZEXPORT unzOpenCurrentFile3(unzFile file, int *method, int *level, int raw, const char *password) +extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, + int* level, int raw, const char* password) { - unz64_s *s = NULL; - file_in_zip64_read_info_s *pfile_in_zip_read_info = NULL; - uint16_t compression_method = 0; - uint64_t offset_local_extrafield = 0; - uint16_t size_local_extrafield = 0; - uint32_t size_variable = 0; - int err = UNZ_OK; -#ifndef NOUNCRYPT + int err=UNZ_OK; + uInt iSizeVar; + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + ZPOS64_T offset_local_extrafield; /* offset of the local extra field */ + uInt size_local_extrafield; /* size of the local extra field */ +# ifndef NOUNCRYPT char source[12]; -#else +# else if (password != NULL) return UNZ_PARAMERROR; -#endif - if (file == NULL) +# endif + + if (file==NULL) return UNZ_PARAMERROR; - s = (unz64_s*)file; + s=(unz64_s*)file; if (!s->current_file_ok) return UNZ_PARAMERROR; if (s->pfile_in_zip_read != NULL) unzCloseCurrentFile(file); - if (unzCheckCurrentFileCoherencyHeader(s, &size_variable, &offset_local_extrafield, &size_local_extrafield) != UNZ_OK) + if (unz64local_CheckCurrentFileCoherencyHeader(s,&iSizeVar, &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK) return UNZ_BADZIPFILE; pfile_in_zip_read_info = (file_in_zip64_read_info_s*)ALLOC(sizeof(file_in_zip64_read_info_s)); - if (pfile_in_zip_read_info == NULL) + if (pfile_in_zip_read_info==NULL) return UNZ_INTERNALERROR; - pfile_in_zip_read_info->read_buffer = (uint8_t*)ALLOC(UNZ_BUFSIZE); + pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE); pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield; pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield; - pfile_in_zip_read_info->pos_local_extrafield = 0; - pfile_in_zip_read_info->raw = raw; + pfile_in_zip_read_info->pos_local_extrafield=0; + pfile_in_zip_read_info->raw=raw; - if (pfile_in_zip_read_info->read_buffer == NULL) + if (pfile_in_zip_read_info->read_buffer==NULL) { TRYFREE(pfile_in_zip_read_info); return UNZ_INTERNALERROR; } - pfile_in_zip_read_info->stream_initialised = 0; + pfile_in_zip_read_info->stream_initialised=0; - compression_method = s->cur_file_info.compression_method; -#ifdef HAVE_AES - if (compression_method == AES_METHOD) - { - compression_method = s->cur_file_info_internal.aes_compression_method; - if (password == NULL) - { - TRYFREE(pfile_in_zip_read_info); - return UNZ_PARAMERROR; - } - } -#endif + if (method!=NULL) + *method = (int)s->cur_file_info.compression_method; - if (method != NULL) - *method = compression_method; - - if (level != NULL) + if (level!=NULL) { *level = 6; switch (s->cur_file_info.flag & 0x06) @@ -1115,430 +1529,323 @@ extern int ZEXPORT unzOpenCurrentFile3(unzFile file, int *method, int *level, in } } - if ((compression_method != 0) && (compression_method != Z_DEFLATED)) - { -#ifdef HAVE_BZIP2 - if (compression_method != Z_BZIP2ED) -#endif - { - TRYFREE(pfile_in_zip_read_info); - return UNZ_BADZIPFILE; - } - } + if ((s->cur_file_info.compression_method!=0) && +/* #ifdef HAVE_BZIP2 */ + (s->cur_file_info.compression_method!=Z_BZIP2ED) && +/* #endif */ + (s->cur_file_info.compression_method!=Z_DEFLATED)) + + err=UNZ_BADZIPFILE; + + pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc; + pfile_in_zip_read_info->crc32=0; + pfile_in_zip_read_info->total_out_64=0; + pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method; + pfile_in_zip_read_info->filestream=s->filestream; + pfile_in_zip_read_info->z_filefunc=s->z_filefunc; + pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile; - pfile_in_zip_read_info->crc32_wait = s->cur_file_info.crc; - pfile_in_zip_read_info->crc32 = 0; - pfile_in_zip_read_info->total_out_64 = 0; - pfile_in_zip_read_info->compression_method = compression_method; - pfile_in_zip_read_info->filestream = s->filestream; - pfile_in_zip_read_info->z_filefunc = s->z_filefunc; - if (s->number_disk == s->gi.number_disk_with_CD) - pfile_in_zip_read_info->byte_before_the_zipfile = s->byte_before_the_zipfile; - else - pfile_in_zip_read_info->byte_before_the_zipfile = 0; pfile_in_zip_read_info->stream.total_out = 0; - pfile_in_zip_read_info->stream.total_in = 0; - pfile_in_zip_read_info->stream.next_in = NULL; - if (!raw) + if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw)) { - if (compression_method == Z_BZIP2ED) - { #ifdef HAVE_BZIP2 - pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0; - pfile_in_zip_read_info->bstream.bzfree = (free_func)0; - pfile_in_zip_read_info->bstream.opaque = (voidpf)0; - pfile_in_zip_read_info->bstream.state = (voidpf)0; + pfile_in_zip_read_info->bstream.bzalloc = (void *(*) (void *, int, int))0; + pfile_in_zip_read_info->bstream.bzfree = (free_func)0; + pfile_in_zip_read_info->bstream.opaque = (voidpf)0; + pfile_in_zip_read_info->bstream.state = (voidpf)0; - pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; - pfile_in_zip_read_info->stream.zfree = (free_func)0; - pfile_in_zip_read_info->stream.opaque = (voidpf)0; - pfile_in_zip_read_info->stream.next_in = (voidpf)0; - pfile_in_zip_read_info->stream.avail_in = 0; + pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; + pfile_in_zip_read_info->stream.zfree = (free_func)0; + pfile_in_zip_read_info->stream.opaque = (voidpf)0; + pfile_in_zip_read_info->stream.next_in = (voidpf)0; + pfile_in_zip_read_info->stream.avail_in = 0; - err = BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0); - if (err == Z_OK) - { - pfile_in_zip_read_info->stream_initialised = Z_BZIP2ED; - } - else - { - TRYFREE(pfile_in_zip_read_info); - return err; - } + err=BZ2_bzDecompressInit(&pfile_in_zip_read_info->bstream, 0, 0); + if (err == Z_OK) + pfile_in_zip_read_info->stream_initialised=Z_BZIP2ED; + else + { + TRYFREE(pfile_in_zip_read_info->read_buffer); + TRYFREE(pfile_in_zip_read_info); + return err; + } #else - pfile_in_zip_read_info->raw = 1; + pfile_in_zip_read_info->raw=1; #endif - } - else if (compression_method == Z_DEFLATED) - { - pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; - pfile_in_zip_read_info->stream.zfree = (free_func)0; - pfile_in_zip_read_info->stream.opaque = (voidpf)s; - pfile_in_zip_read_info->stream.next_in = (voidpf)0; - pfile_in_zip_read_info->stream.avail_in = 0; - -#ifdef HAVE_APPLE_COMPRESSION - err = compression_stream_init(&pfile_in_zip_read_info->astream, COMPRESSION_STREAM_DECODE, COMPRESSION_ZLIB); - if (err == COMPRESSION_STATUS_ERROR) - err = UNZ_INTERNALERROR; - else - err = Z_OK; -#else - err = inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS); -#endif - if (err == Z_OK) - { - pfile_in_zip_read_info->stream_initialised = Z_DEFLATED; - } - else - { - TRYFREE(pfile_in_zip_read_info); - return err; - } - /* windowBits is passed < 0 to tell that there is no zlib header. - * Note that in this case inflate *requires* an extra "dummy" byte - * after the compressed stream in order to complete decompression and - * return Z_STREAM_END. - * In unzip, i don't wait absolutely Z_STREAM_END because I known the - * size of both compressed and uncompressed data - */ - } } + else if ((s->cur_file_info.compression_method==Z_DEFLATED) && (!raw)) + { + pfile_in_zip_read_info->stream.zalloc = (alloc_func)0; + pfile_in_zip_read_info->stream.zfree = (free_func)0; + pfile_in_zip_read_info->stream.opaque = (voidpf)0; + pfile_in_zip_read_info->stream.next_in = 0; + pfile_in_zip_read_info->stream.avail_in = 0; - pfile_in_zip_read_info->rest_read_compressed = s->cur_file_info.compressed_size; - pfile_in_zip_read_info->rest_read_uncompressed = s->cur_file_info.uncompressed_size; - pfile_in_zip_read_info->pos_in_zipfile = s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + size_variable; - pfile_in_zip_read_info->stream.avail_in = 0; + err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS); + if (err == Z_OK) + pfile_in_zip_read_info->stream_initialised=Z_DEFLATED; + else + { + TRYFREE(pfile_in_zip_read_info->read_buffer); + TRYFREE(pfile_in_zip_read_info); + return err; + } + /* windowBits is passed < 0 to tell that there is no zlib header. + * Note that in this case inflate *requires* an extra "dummy" byte + * after the compressed stream in order to complete decompression and + * return Z_STREAM_END. + * In unzip, i don't wait absolutely Z_STREAM_END because I known the + * size of both compressed and uncompressed data + */ + } + pfile_in_zip_read_info->rest_read_compressed = + s->cur_file_info.compressed_size ; + pfile_in_zip_read_info->rest_read_uncompressed = + s->cur_file_info.uncompressed_size ; + + + pfile_in_zip_read_info->pos_in_zipfile = + s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + + iSizeVar; + + pfile_in_zip_read_info->stream.avail_in = (uInt)0; s->pfile_in_zip_read = pfile_in_zip_read_info; + s->encrypted = 0; -#ifndef NOUNCRYPT - s->pcrc_32_tab = NULL; - - if ((password != NULL) && ((s->cur_file_info.flag & 1) != 0)) +# ifndef NOUNCRYPT + if (password != NULL) { + int i; + s->pcrc_32_tab = get_crc_table(); + init_keys(password,s->keys,s->pcrc_32_tab); if (ZSEEK64(s->z_filefunc, s->filestream, - s->pfile_in_zip_read->pos_in_zipfile + s->pfile_in_zip_read->byte_before_the_zipfile, - ZLIB_FILEFUNC_SEEK_SET) != 0) + s->pfile_in_zip_read->pos_in_zipfile + + s->pfile_in_zip_read->byte_before_the_zipfile, + SEEK_SET)!=0) + return UNZ_INTERNALERROR; + if(ZREAD64(s->z_filefunc, s->filestream,source, 12)<12) return UNZ_INTERNALERROR; -#ifdef HAVE_AES - if (s->cur_file_info.compression_method == AES_METHOD) - { - unsigned char passverify_archive[AES_PWVERIFYSIZE]; - unsigned char passverify_password[AES_PWVERIFYSIZE]; - unsigned char salt_value[AES_MAXSALTLENGTH]; - uint32_t salt_length = 0; - if ((s->cur_file_info_internal.aes_encryption_mode < 1) || - (s->cur_file_info_internal.aes_encryption_mode > 3)) - return UNZ_INTERNALERROR; + for (i = 0; i<12; i++) + zdecode(s->keys,s->pcrc_32_tab,source[i]); - salt_length = SALT_LENGTH(s->cur_file_info_internal.aes_encryption_mode); - - if (ZREAD64(s->z_filefunc, s->filestream, salt_value, salt_length) != salt_length) - return UNZ_INTERNALERROR; - if (ZREAD64(s->z_filefunc, s->filestream, passverify_archive, AES_PWVERIFYSIZE) != AES_PWVERIFYSIZE) - return UNZ_INTERNALERROR; - - fcrypt_init(s->cur_file_info_internal.aes_encryption_mode, (uint8_t *)password, - (uint32_t)strlen(password), salt_value, passverify_password, &s->pfile_in_zip_read->aes_ctx); - - if (memcmp(passverify_archive, passverify_password, AES_PWVERIFYSIZE) != 0) - return UNZ_BADPASSWORD; - - s->pfile_in_zip_read->rest_read_compressed -= salt_length + AES_PWVERIFYSIZE; - s->pfile_in_zip_read->rest_read_compressed -= AES_AUTHCODESIZE; - - s->pfile_in_zip_read->pos_in_zipfile += salt_length + AES_PWVERIFYSIZE; - } - else -#endif - { - int i; - s->pcrc_32_tab = (const z_crc_t*)get_crc_table(); - init_keys(password, s->keys, s->pcrc_32_tab); - - if (ZREAD64(s->z_filefunc, s->filestream, source, 12) < 12) - return UNZ_INTERNALERROR; - - for (i = 0; i < 12; i++) - zdecode(s->keys, s->pcrc_32_tab, source[i]); - - s->pfile_in_zip_read->rest_read_compressed -= 12; - s->pfile_in_zip_read->pos_in_zipfile += 12; - } + s->pfile_in_zip_read->pos_in_zipfile+=12; + s->encrypted=1; } -#endif +# endif + return UNZ_OK; } -extern int ZEXPORT unzOpenCurrentFile(unzFile file) +extern int ZEXPORT unzOpenCurrentFile (unzFile file) { return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL); } -extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file, const char *password) +extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password) { return unzOpenCurrentFile3(file, NULL, NULL, 0, password); } -extern int ZEXPORT unzOpenCurrentFile2(unzFile file, int *method, int *level, int raw) +extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw) { return unzOpenCurrentFile3(file, method, level, raw, NULL); } -/* Read bytes from the current file. - buf contain buffer where data must be copied - len the size of buf. +/** Addition for GDAL : START */ - return the number of byte copied if some bytes are copied - return 0 if the end of file was reached - return <0 with error code if there is an error (UNZ_ERRNO for IO error, or zLib error for uncompress error) */ -extern int ZEXPORT unzReadCurrentFile(unzFile file, voidp buf, uint32_t len) +extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file) { - unz64_s *s = NULL; - uint32_t read = 0; - int err = UNZ_OK; + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + s=(unz64_s*)file; + if (file==NULL) + return 0; //UNZ_PARAMERROR; + pfile_in_zip_read_info=s->pfile_in_zip_read; + if (pfile_in_zip_read_info==NULL) + return 0; //UNZ_PARAMERROR; + return pfile_in_zip_read_info->pos_in_zipfile + + pfile_in_zip_read_info->byte_before_the_zipfile; +} - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; +/** Addition for GDAL : END */ - if (s->pfile_in_zip_read == NULL) +/* + Read bytes from the current file. + buf contain buffer where data must be copied + len the size of buf. + + return the number of byte copied if somes bytes are copied + return 0 if the end of file was reached + return <0 with error code if there is an error + (UNZ_ERRNO for IO error, or zLib error for uncompress error) +*/ +extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) +{ + int err=UNZ_OK; + uInt iRead = 0; + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) return UNZ_PARAMERROR; - if (s->pfile_in_zip_read->read_buffer == NULL) + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + + if (pfile_in_zip_read_info->read_buffer == NULL) return UNZ_END_OF_LIST_OF_FILE; - if (len == 0) + if (len==0) return 0; - if (len > UINT16_MAX) - return UNZ_PARAMERROR; - s->pfile_in_zip_read->stream.next_out = (uint8_t*)buf; - s->pfile_in_zip_read->stream.avail_out = (uint16_t)len; + pfile_in_zip_read_info->stream.next_out = (Bytef*)buf; - if (s->pfile_in_zip_read->raw) - { - if (len > s->pfile_in_zip_read->rest_read_compressed + s->pfile_in_zip_read->stream.avail_in) - s->pfile_in_zip_read->stream.avail_out = (uint16_t)s->pfile_in_zip_read->rest_read_compressed + - s->pfile_in_zip_read->stream.avail_in; - } - else - { - if (len > s->pfile_in_zip_read->rest_read_uncompressed) - s->pfile_in_zip_read->stream.avail_out = (uint16_t)s->pfile_in_zip_read->rest_read_uncompressed; - } + pfile_in_zip_read_info->stream.avail_out = (uInt)len; - do + if ((len>pfile_in_zip_read_info->rest_read_uncompressed) && + (!(pfile_in_zip_read_info->raw))) + pfile_in_zip_read_info->stream.avail_out = + (uInt)pfile_in_zip_read_info->rest_read_uncompressed; + + if ((len>pfile_in_zip_read_info->rest_read_compressed+ + pfile_in_zip_read_info->stream.avail_in) && + (pfile_in_zip_read_info->raw)) + pfile_in_zip_read_info->stream.avail_out = + (uInt)pfile_in_zip_read_info->rest_read_compressed+ + pfile_in_zip_read_info->stream.avail_in; + + while (pfile_in_zip_read_info->stream.avail_out>0) { - if (s->pfile_in_zip_read->stream.avail_in == 0) + if ((pfile_in_zip_read_info->stream.avail_in==0) && + (pfile_in_zip_read_info->rest_read_compressed>0)) { - uint32_t bytes_to_read = UNZ_BUFSIZE; - uint32_t bytes_not_read = 0; - uint32_t bytes_read = 0; - uint32_t total_bytes_read = 0; + uInt uReadThis = UNZ_BUFSIZE; + if (pfile_in_zip_read_info->rest_read_compressedrest_read_compressed; + if (uReadThis == 0) + return UNZ_EOF; + if (ZSEEK64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->pos_in_zipfile + + pfile_in_zip_read_info->byte_before_the_zipfile, + ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; + if (ZREAD64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->read_buffer, + uReadThis)!=uReadThis) + return UNZ_ERRNO; - if (s->pfile_in_zip_read->stream.next_in != NULL) - bytes_not_read = (uint32_t)(s->pfile_in_zip_read->read_buffer + UNZ_BUFSIZE - - s->pfile_in_zip_read->stream.next_in); - bytes_to_read -= bytes_not_read; - if (bytes_not_read > 0) - memcpy(s->pfile_in_zip_read->read_buffer, s->pfile_in_zip_read->stream.next_in, bytes_not_read); - if (s->pfile_in_zip_read->rest_read_compressed < bytes_to_read) - bytes_to_read = (uint16_t)s->pfile_in_zip_read->rest_read_compressed; - while (total_bytes_read != bytes_to_read) +# ifndef NOUNCRYPT + if(s->encrypted) { - if (ZSEEK64(s->pfile_in_zip_read->z_filefunc, s->pfile_in_zip_read->filestream, - s->pfile_in_zip_read->pos_in_zipfile + s->pfile_in_zip_read->byte_before_the_zipfile, - ZLIB_FILEFUNC_SEEK_SET) != 0) - return UNZ_ERRNO; - - bytes_read = ZREAD64(s->pfile_in_zip_read->z_filefunc, s->pfile_in_zip_read->filestream, - s->pfile_in_zip_read->read_buffer + bytes_not_read + total_bytes_read, - bytes_to_read - total_bytes_read); - - total_bytes_read += bytes_read; - s->pfile_in_zip_read->pos_in_zipfile += bytes_read; - - if (bytes_read == 0) - { - if (ZERROR64(s->pfile_in_zip_read->z_filefunc, s->pfile_in_zip_read->filestream)) - return UNZ_ERRNO; - - err = unzGoToNextDisk(file); - if (err != UNZ_OK) - return err; - - s->pfile_in_zip_read->pos_in_zipfile = 0; - s->pfile_in_zip_read->filestream = s->filestream; - } + uInt i; + for(i=0;iread_buffer[i] = + zdecode(s->keys,s->pcrc_32_tab, + pfile_in_zip_read_info->read_buffer[i]); } +# endif -#ifndef NOUNCRYPT - if ((s->cur_file_info.flag & 1) != 0) - { -#ifdef HAVE_AES - if (s->cur_file_info.compression_method == AES_METHOD) - { - fcrypt_decrypt(s->pfile_in_zip_read->read_buffer, bytes_to_read, &s->pfile_in_zip_read->aes_ctx); - } - else -#endif - if (s->pcrc_32_tab != NULL) - { - uint32_t i = 0; - for (i = 0; i < total_bytes_read; i++) - s->pfile_in_zip_read->read_buffer[i] = - zdecode(s->keys, s->pcrc_32_tab, s->pfile_in_zip_read->read_buffer[i]); - } - } -#endif + pfile_in_zip_read_info->pos_in_zipfile += uReadThis; - s->pfile_in_zip_read->rest_read_compressed -= total_bytes_read; - s->pfile_in_zip_read->stream.next_in = (uint8_t*)s->pfile_in_zip_read->read_buffer; - s->pfile_in_zip_read->stream.avail_in = (uint16_t)(bytes_not_read + total_bytes_read); + pfile_in_zip_read_info->rest_read_compressed-=uReadThis; + + pfile_in_zip_read_info->stream.next_in = + (Bytef*)pfile_in_zip_read_info->read_buffer; + pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis; } - if ((s->pfile_in_zip_read->compression_method == 0) || (s->pfile_in_zip_read->raw)) + if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw)) { - uint32_t i = 0; - uint32_t copy = 0; + uInt uDoCopy,i ; - if ((s->pfile_in_zip_read->stream.avail_in == 0) && - (s->pfile_in_zip_read->rest_read_compressed == 0)) - return (read == 0) ? UNZ_EOF : read; + if ((pfile_in_zip_read_info->stream.avail_in == 0) && + (pfile_in_zip_read_info->rest_read_compressed == 0)) + return (iRead==0) ? UNZ_EOF : (int)iRead; - if (s->pfile_in_zip_read->stream.avail_out < s->pfile_in_zip_read->stream.avail_in) - copy = s->pfile_in_zip_read->stream.avail_out; + if (pfile_in_zip_read_info->stream.avail_out < + pfile_in_zip_read_info->stream.avail_in) + uDoCopy = pfile_in_zip_read_info->stream.avail_out ; else - copy = s->pfile_in_zip_read->stream.avail_in; + uDoCopy = pfile_in_zip_read_info->stream.avail_in ; - for (i = 0; i < copy; i++) - *(s->pfile_in_zip_read->stream.next_out + i) = - *(s->pfile_in_zip_read->stream.next_in + i); + for (i=0;istream.next_out+i) = + *(pfile_in_zip_read_info->stream.next_in+i); - s->pfile_in_zip_read->total_out_64 = s->pfile_in_zip_read->total_out_64 + copy; - s->pfile_in_zip_read->rest_read_uncompressed -= copy; - s->pfile_in_zip_read->crc32 = (uint32_t)crc32(s->pfile_in_zip_read->crc32, - s->pfile_in_zip_read->stream.next_out, copy); + pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy; - s->pfile_in_zip_read->stream.avail_in -= copy; - s->pfile_in_zip_read->stream.avail_out -= copy; - s->pfile_in_zip_read->stream.next_out += copy; - s->pfile_in_zip_read->stream.next_in += copy; - s->pfile_in_zip_read->stream.total_out += copy; - - read += copy; + pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32, + pfile_in_zip_read_info->stream.next_out, + uDoCopy); + pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy; + pfile_in_zip_read_info->stream.avail_in -= uDoCopy; + pfile_in_zip_read_info->stream.avail_out -= uDoCopy; + pfile_in_zip_read_info->stream.next_out += uDoCopy; + pfile_in_zip_read_info->stream.next_in += uDoCopy; + pfile_in_zip_read_info->stream.total_out += uDoCopy; + iRead += uDoCopy; } - else if (s->pfile_in_zip_read->compression_method == Z_BZIP2ED) + else if (pfile_in_zip_read_info->compression_method==Z_BZIP2ED) { #ifdef HAVE_BZIP2 - uint64_t total_out_before = 0; - uint64_t total_out_after = 0; - uint64_t out_bytes = 0; - const uint8_t *buf_before = NULL; + uLong uTotalOutBefore,uTotalOutAfter; + const Bytef *bufBefore; + uLong uOutThis; - s->pfile_in_zip_read->bstream.next_in = (char*)s->pfile_in_zip_read->stream.next_in; - s->pfile_in_zip_read->bstream.avail_in = s->pfile_in_zip_read->stream.avail_in; - s->pfile_in_zip_read->bstream.total_in_lo32 = (uint32_t)s->pfile_in_zip_read->stream.total_in; - s->pfile_in_zip_read->bstream.total_in_hi32 = s->pfile_in_zip_read->stream.total_in >> 32; - - s->pfile_in_zip_read->bstream.next_out = (char*)s->pfile_in_zip_read->stream.next_out; - s->pfile_in_zip_read->bstream.avail_out = s->pfile_in_zip_read->stream.avail_out; - s->pfile_in_zip_read->bstream.total_out_lo32 = (uint32_t)s->pfile_in_zip_read->stream.total_out; - s->pfile_in_zip_read->bstream.total_out_hi32 = s->pfile_in_zip_read->stream.total_out >> 32; + pfile_in_zip_read_info->bstream.next_in = (char*)pfile_in_zip_read_info->stream.next_in; + pfile_in_zip_read_info->bstream.avail_in = pfile_in_zip_read_info->stream.avail_in; + pfile_in_zip_read_info->bstream.total_in_lo32 = pfile_in_zip_read_info->stream.total_in; + pfile_in_zip_read_info->bstream.total_in_hi32 = 0; + pfile_in_zip_read_info->bstream.next_out = (char*)pfile_in_zip_read_info->stream.next_out; + pfile_in_zip_read_info->bstream.avail_out = pfile_in_zip_read_info->stream.avail_out; + pfile_in_zip_read_info->bstream.total_out_lo32 = pfile_in_zip_read_info->stream.total_out; + pfile_in_zip_read_info->bstream.total_out_hi32 = 0; - total_out_before = s->pfile_in_zip_read->bstream.total_out_lo32 + - (((uint32_t)s->pfile_in_zip_read->bstream.total_out_hi32) << 32); - buf_before = (const uint8_t*)s->pfile_in_zip_read->bstream.next_out; + uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32; + bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out; - err = BZ2_bzDecompress(&s->pfile_in_zip_read->bstream); + err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream); - total_out_after = s->pfile_in_zip_read->bstream.total_out_lo32 + - (((uint32_t)s->pfile_in_zip_read->bstream.total_out_hi32) << 32); + uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32; + uOutThis = uTotalOutAfter-uTotalOutBefore; - out_bytes = total_out_after - total_out_before; + pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis; - s->pfile_in_zip_read->total_out_64 = s->pfile_in_zip_read->total_out_64 + out_bytes; - s->pfile_in_zip_read->rest_read_uncompressed -= out_bytes; - s->pfile_in_zip_read->crc32 = crc32(s->pfile_in_zip_read->crc32, buf_before, (uint32_t)out_bytes); + pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,bufBefore, (uInt)(uOutThis)); + pfile_in_zip_read_info->rest_read_uncompressed -= uOutThis; + iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); - read += (uint32_t)out_bytes; + pfile_in_zip_read_info->stream.next_in = (Bytef*)pfile_in_zip_read_info->bstream.next_in; + pfile_in_zip_read_info->stream.avail_in = pfile_in_zip_read_info->bstream.avail_in; + pfile_in_zip_read_info->stream.total_in = pfile_in_zip_read_info->bstream.total_in_lo32; + pfile_in_zip_read_info->stream.next_out = (Bytef*)pfile_in_zip_read_info->bstream.next_out; + pfile_in_zip_read_info->stream.avail_out = pfile_in_zip_read_info->bstream.avail_out; + pfile_in_zip_read_info->stream.total_out = pfile_in_zip_read_info->bstream.total_out_lo32; - s->pfile_in_zip_read->stream.next_in = (uint8_t*)s->pfile_in_zip_read->bstream.next_in; - s->pfile_in_zip_read->stream.avail_in = s->pfile_in_zip_read->bstream.avail_in; - s->pfile_in_zip_read->stream.total_in = s->pfile_in_zip_read->bstream.total_in_lo32; - s->pfile_in_zip_read->stream.next_out = (uint8_t*)s->pfile_in_zip_read->bstream.next_out; - s->pfile_in_zip_read->stream.avail_out = s->pfile_in_zip_read->bstream.avail_out; - s->pfile_in_zip_read->stream.total_out = s->pfile_in_zip_read->bstream.total_out_lo32; - - if (err == BZ_STREAM_END) - return (read == 0) ? UNZ_EOF : read; - if (err != BZ_OK) - break; + if (err==BZ_STREAM_END) + return (iRead==0) ? UNZ_EOF : iRead; + if (err!=BZ_OK) + break; #endif - } -#ifdef HAVE_APPLE_COMPRESSION + } // end Z_BZIP2ED else { - uint64_t total_out_before = 0; - uint64_t total_out_after = 0; - uint64_t out_bytes = 0; - const uint8_t *buf_before = NULL; + ZPOS64_T uTotalOutBefore,uTotalOutAfter; + const Bytef *bufBefore; + ZPOS64_T uOutThis; + int flush=Z_SYNC_FLUSH; - s->pfile_in_zip_read->astream.src_ptr = s->pfile_in_zip_read->stream.next_in; - s->pfile_in_zip_read->astream.src_size = s->pfile_in_zip_read->stream.avail_in; - s->pfile_in_zip_read->astream.dst_ptr = s->pfile_in_zip_read->stream.next_out; - s->pfile_in_zip_read->astream.dst_size = len; - - total_out_before = s->pfile_in_zip_read->stream.total_out; - buf_before = s->pfile_in_zip_read->stream.next_out; - - compression_status status; - compression_stream_flags flags; - - if (s->pfile_in_zip_read->stream.avail_in == 0) - { - flags = COMPRESSION_STREAM_FINALIZE; - } - - status = compression_stream_process(&s->pfile_in_zip_read->astream, flags); - - total_out_after = len - s->pfile_in_zip_read->astream.dst_size; - out_bytes = total_out_after - total_out_before; - - s->pfile_in_zip_read->total_out_64 += out_bytes; - s->pfile_in_zip_read->rest_read_uncompressed -= out_bytes; - s->pfile_in_zip_read->crc32 = - crc32(s->pfile_in_zip_read->crc32, buf_before, (uint32_t)out_bytes); - - read += (uint32_t)out_bytes; - - s->pfile_in_zip_read->stream.next_in = s->pfile_in_zip_read->astream.src_ptr; - s->pfile_in_zip_read->stream.avail_in = s->pfile_in_zip_read->astream.src_size; - s->pfile_in_zip_read->stream.next_out = s->pfile_in_zip_read->astream.dst_ptr; - s->pfile_in_zip_read->stream.avail_out = s->pfile_in_zip_read->astream.dst_size; - - if (status == COMPRESSION_STATUS_END) - return (read == 0) ? UNZ_EOF : read; - if (status == COMPRESSION_STATUS_ERROR) - return Z_DATA_ERROR; - return read; - } -#else - else - { - uint64_t total_out_before = 0; - uint64_t total_out_after = 0; - uint64_t out_bytes = 0; - const uint8_t *buf_before = NULL; - int flush = Z_SYNC_FLUSH; - - total_out_before = s->pfile_in_zip_read->stream.total_out; - buf_before = s->pfile_in_zip_read->stream.next_out; + uTotalOutBefore = pfile_in_zip_read_info->stream.total_out; + bufBefore = pfile_in_zip_read_info->stream.next_out; /* if ((pfile_in_zip_read_info->rest_read_uncompressed == @@ -1546,455 +1853,278 @@ extern int ZEXPORT unzReadCurrentFile(unzFile file, voidp buf, uint32_t len) (pfile_in_zip_read_info->rest_read_compressed == 0)) flush = Z_FINISH; */ - err = inflate(&s->pfile_in_zip_read->stream, flush); + err=inflate(&pfile_in_zip_read_info->stream,flush); - if ((err >= 0) && (s->pfile_in_zip_read->stream.msg != NULL)) - err = Z_DATA_ERROR; + if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL)) + err = Z_DATA_ERROR; - total_out_after = s->pfile_in_zip_read->stream.total_out; - out_bytes = total_out_after - total_out_before; + uTotalOutAfter = pfile_in_zip_read_info->stream.total_out; + /* Detect overflow, because z_stream.total_out is uLong (32 bits) */ + if (uTotalOutAfterpfile_in_zip_read->total_out_64 += out_bytes; - s->pfile_in_zip_read->rest_read_uncompressed -= out_bytes; - s->pfile_in_zip_read->crc32 = - (uint32_t)crc32(s->pfile_in_zip_read->crc32,buf_before, (uint32_t)out_bytes); + pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis; - read += (uint32_t)out_bytes; + pfile_in_zip_read_info->crc32 = + crc32(pfile_in_zip_read_info->crc32,bufBefore, + (uInt)(uOutThis)); - if (err == Z_STREAM_END) - return (read == 0) ? UNZ_EOF : read; - if (err != Z_OK) + pfile_in_zip_read_info->rest_read_uncompressed -= + uOutThis; + + iRead += (uInt)(uTotalOutAfter - uTotalOutBefore); + + if (err==Z_STREAM_END) + return (iRead==0) ? UNZ_EOF : (int)iRead; + if (err!=Z_OK) break; } -#endif } - while (s->pfile_in_zip_read->stream.avail_out > 0); - if (err == Z_OK) - return read; + if (err==Z_OK) + return (int)iRead; return err; } -extern int ZEXPORT unzGetLocalExtrafield(unzFile file, voidp buf, uint32_t len) + +/* + Give the current position in uncompressed data +*/ +extern z_off_t ZEXPORT unztell (unzFile file) { - unz64_s *s = NULL; - uint64_t size_to_read = 0; - uint32_t read_now = 0; - - if (file == NULL) + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) return UNZ_PARAMERROR; - s = (unz64_s*)file; - if (s->pfile_in_zip_read == NULL) + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) return UNZ_PARAMERROR; - size_to_read = s->pfile_in_zip_read->size_local_extrafield - s->pfile_in_zip_read->pos_local_extrafield; + return (z_off_t)pfile_in_zip_read_info->stream.total_out; +} - if (buf == NULL) +extern ZPOS64_T ZEXPORT unztell64 (unzFile file) +{ + + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return (ZPOS64_T)-1; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return (ZPOS64_T)-1; + + return pfile_in_zip_read_info->total_out_64; +} + + +/* + return 1 if the end of file was reached, 0 elsewhere +*/ +extern int ZEXPORT unzeof (unzFile file) +{ + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + if (pfile_in_zip_read_info->rest_read_uncompressed == 0) + return 1; + else + return 0; +} + + + +/* +Read extra field from the current file (opened by unzOpenCurrentFile) +This is the local-header version of the extra field (sometimes, there is +more info in the local-header version than in the central-header) + + if buf==NULL, it return the size of the local extra field that can be read + + if buf!=NULL, len is the size of the buffer, the extra header is copied in + buf. + the return value is the number of bytes copied in buf, or (if <0) + the error code +*/ +extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len) +{ + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + uInt read_now; + ZPOS64_T size_to_read; + + if (file==NULL) + return UNZ_PARAMERROR; + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) + return UNZ_PARAMERROR; + + size_to_read = (pfile_in_zip_read_info->size_local_extrafield - + pfile_in_zip_read_info->pos_local_extrafield); + + if (buf==NULL) return (int)size_to_read; - if (len > size_to_read) - read_now = (uint32_t)size_to_read; + if (len>size_to_read) + read_now = (uInt)size_to_read; else - read_now = len; + read_now = (uInt)len ; - if (read_now == 0) + if (read_now==0) return 0; - if (ZSEEK64(s->pfile_in_zip_read->z_filefunc, s->pfile_in_zip_read->filestream, - s->pfile_in_zip_read->offset_local_extrafield + s->pfile_in_zip_read->pos_local_extrafield, - ZLIB_FILEFUNC_SEEK_SET) != 0) + if (ZSEEK64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + pfile_in_zip_read_info->offset_local_extrafield + + pfile_in_zip_read_info->pos_local_extrafield, + ZLIB_FILEFUNC_SEEK_SET)!=0) return UNZ_ERRNO; - if (ZREAD64(s->pfile_in_zip_read->z_filefunc, s->pfile_in_zip_read->filestream, buf, read_now) != read_now) + if (ZREAD64(pfile_in_zip_read_info->z_filefunc, + pfile_in_zip_read_info->filestream, + buf,read_now)!=read_now) return UNZ_ERRNO; return (int)read_now; } -extern int ZEXPORT unzCloseCurrentFile(unzFile file) +/* + Close the file in zip opened with unzOpenCurrentFile + Return UNZ_CRCERROR if all the file was read but the CRC is not good +*/ +extern int ZEXPORT unzCloseCurrentFile (unzFile file) { - unz64_s *s = NULL; - file_in_zip64_read_info_s *pfile_in_zip_read_info = NULL; - int err = UNZ_OK; + int err=UNZ_OK; - if (file == NULL) + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file==NULL) return UNZ_PARAMERROR; - s = (unz64_s*)file; - pfile_in_zip_read_info = s->pfile_in_zip_read; - if (pfile_in_zip_read_info == NULL) + s=(unz64_s*)file; + pfile_in_zip_read_info=s->pfile_in_zip_read; + + if (pfile_in_zip_read_info==NULL) return UNZ_PARAMERROR; -#ifdef HAVE_AES - if (s->cur_file_info.compression_method == AES_METHOD) - { - unsigned char authcode[AES_AUTHCODESIZE]; - unsigned char rauthcode[AES_AUTHCODESIZE]; - if (ZREAD64(s->z_filefunc, s->filestream, authcode, AES_AUTHCODESIZE) != AES_AUTHCODESIZE) - return UNZ_ERRNO; - - if (fcrypt_end(rauthcode, &s->pfile_in_zip_read->aes_ctx) != AES_AUTHCODESIZE) - err = UNZ_CRCERROR; - if (memcmp(authcode, rauthcode, AES_AUTHCODESIZE) != 0) - err = UNZ_CRCERROR; - } - /* AES zip version AE-1 will expect a valid crc as well */ - if ((s->cur_file_info.compression_method != AES_METHOD) || - (s->cur_file_info_internal.aes_version == 0x0001)) -#endif + if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) && + (!pfile_in_zip_read_info->raw)) { - if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) && - (!pfile_in_zip_read_info->raw)) - { - if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait) - err = UNZ_CRCERROR; - } + if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait) + err=UNZ_CRCERROR; } + TRYFREE(pfile_in_zip_read_info->read_buffer); pfile_in_zip_read_info->read_buffer = NULL; if (pfile_in_zip_read_info->stream_initialised == Z_DEFLATED) - { -#ifdef HAVE_APPLE_COMPRESSION - if (compression_stream_destroy) - compression_stream_destroy(&pfile_in_zip_read_info->astream); -#else inflateEnd(&pfile_in_zip_read_info->stream); -#endif - - } #ifdef HAVE_BZIP2 else if (pfile_in_zip_read_info->stream_initialised == Z_BZIP2ED) BZ2_bzDecompressEnd(&pfile_in_zip_read_info->bstream); #endif + pfile_in_zip_read_info->stream_initialised = 0; TRYFREE(pfile_in_zip_read_info); - s->pfile_in_zip_read = NULL; + s->pfile_in_zip_read=NULL; return err; } -extern int ZEXPORT unzGoToFirstFile2(unzFile file, unz_file_info64 *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size) + +/* + Get the global comment string of the ZipFile, in the szComment buffer. + uSizeBuf is the size of the szComment buffer. + return the number of byte copied or an error code <0 +*/ +extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf) { - unz64_s *s = NULL; - int err = UNZ_OK; + unz64_s* s; + uLong uReadThis ; + if (file==NULL) + return (int)UNZ_PARAMERROR; + s=(unz64_s*)file; - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; + uReadThis = uSizeBuf; + if (uReadThis>s->gi.size_comment) + uReadThis = s->gi.size_comment; - s->pos_in_central_dir = s->offset_central_dir; - s->num_file = 0; + if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0) + return UNZ_ERRNO; - err = unzGetCurrentFileInfoInternal(file, &s->cur_file_info, &s->cur_file_info_internal, - filename, filename_size, extrafield, extrafield_size, comment,comment_size); - - s->current_file_ok = (err == UNZ_OK); - if ((err == UNZ_OK) && (pfile_info != NULL)) - memcpy(pfile_info, &s->cur_file_info, sizeof(unz_file_info64)); - - return err; -} - -extern int ZEXPORT unzGoToFirstFile(unzFile file) -{ - return unzGoToFirstFile2(file, NULL, NULL, 0, NULL, 0, NULL, 0); -} - -extern int ZEXPORT unzGoToNextFile2(unzFile file, unz_file_info64 *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size) -{ - unz64_s *s = NULL; - int err = UNZ_OK; - - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - - if (!s->current_file_ok) - return UNZ_END_OF_LIST_OF_FILE; - if (s->gi.number_entry != UINT16_MAX) /* 2^16 files overflow hack */ + if (uReadThis>0) { - if (s->num_file+1 == s->gi.number_entry) - return UNZ_END_OF_LIST_OF_FILE; + *szComment='\0'; + if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis) + return UNZ_ERRNO; } - s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + - s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment; - s->num_file += 1; - - err = unzGetCurrentFileInfoInternal(file, &s->cur_file_info, &s->cur_file_info_internal, - filename, filename_size, extrafield,extrafield_size, comment, comment_size); - - s->current_file_ok = (err == UNZ_OK); - if ((err == UNZ_OK) && (pfile_info != NULL)) - memcpy(pfile_info, &s->cur_file_info, sizeof(unz_file_info64)); - - return err; + if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment)) + *(szComment+s->gi.size_comment)='\0'; + return (int)uReadThis; } -extern int ZEXPORT unzGoToNextFile(unzFile file) +/* Additions by RX '2004 */ +extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) { - return unzGoToNextFile2(file, NULL, NULL, 0, NULL, 0, NULL, 0); -} + unz64_s* s; -extern int ZEXPORT unzLocateFile(unzFile file, const char *filename, unzFileNameComparer filename_compare_func) -{ - unz64_s *s = NULL; - unz_file_info64 cur_file_info_saved; - unz_file_info64_internal cur_file_info_internal_saved; - uint64_t num_file_saved = 0; - uint64_t pos_in_central_dir_saved = 0; - char current_filename[UNZ_MAXFILENAMEINZIP+1]; - int err = UNZ_OK; - - if (file == NULL) - return UNZ_PARAMERROR; - if (strlen(filename) >= UNZ_MAXFILENAMEINZIP) - return UNZ_PARAMERROR; - s = (unz64_s*)file; + if (file==NULL) + return 0; //UNZ_PARAMERROR; + s=(unz64_s*)file; if (!s->current_file_ok) - return UNZ_END_OF_LIST_OF_FILE; - - /* Save the current state */ - num_file_saved = s->num_file; - pos_in_central_dir_saved = s->pos_in_central_dir; - cur_file_info_saved = s->cur_file_info; - cur_file_info_internal_saved = s->cur_file_info_internal; - - err = unzGoToFirstFile2(file, NULL, current_filename, sizeof(current_filename)-1, NULL, 0, NULL, 0); - - while (err == UNZ_OK) - { - if (filename_compare_func != NULL) - err = filename_compare_func(file, current_filename, filename); - else - err = strcmp(current_filename, filename); - if (err == 0) - return UNZ_OK; - err = unzGoToNextFile2(file, NULL, current_filename, sizeof(current_filename)-1, NULL, 0, NULL, 0); - } - - /* We failed, so restore the state of the 'current file' to where we were. */ - s->num_file = num_file_saved; - s->pos_in_central_dir = pos_in_central_dir_saved; - s->cur_file_info = cur_file_info_saved; - s->cur_file_info_internal = cur_file_info_internal_saved; - return err; -} - -extern int ZEXPORT unzGetFilePos(unzFile file, unz_file_pos *file_pos) -{ - unz64_file_pos file_pos64; - int err = unzGetFilePos64(file, &file_pos64); - if (err == UNZ_OK) - { - file_pos->pos_in_zip_directory = (uint32_t)file_pos64.pos_in_zip_directory; - file_pos->num_of_file = (uint32_t)file_pos64.num_of_file; - } - return err; -} - -extern int ZEXPORT unzGoToFilePos(unzFile file, unz_file_pos *file_pos) -{ - unz64_file_pos file_pos64; - if (file_pos == NULL) - return UNZ_PARAMERROR; - file_pos64.pos_in_zip_directory = file_pos->pos_in_zip_directory; - file_pos64.num_of_file = file_pos->num_of_file; - return unzGoToFilePos64(file, &file_pos64); -} - -extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos *file_pos) -{ - unz64_s *s = NULL; - - if (file == NULL || file_pos == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - if (!s->current_file_ok) - return UNZ_END_OF_LIST_OF_FILE; - - file_pos->pos_in_zip_directory = s->pos_in_central_dir; - file_pos->num_of_file = s->num_file; - return UNZ_OK; -} - -extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos *file_pos) -{ - unz64_s *s = NULL; - int err = UNZ_OK; - - if (file == NULL || file_pos == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - - /* Jump to the right spot */ - s->pos_in_central_dir = file_pos->pos_in_zip_directory; - s->num_file = file_pos->num_of_file; - - /* Set the current file */ - err = unzGetCurrentFileInfoInternal(file, &s->cur_file_info, &s->cur_file_info_internal, NULL, 0, NULL, 0, NULL, 0); - /* Return results */ - s->current_file_ok = (err == UNZ_OK); - return err; -} - -extern int32_t ZEXPORT unzGetOffset(unzFile file) -{ - uint64_t offset64 = 0; - - if (file == NULL) - return UNZ_PARAMERROR; - offset64 = unzGetOffset64(file); - return (int32_t)offset64; -} - -extern int64_t ZEXPORT unzGetOffset64(unzFile file) -{ - unz64_s *s = NULL; - - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - if (!s->current_file_ok) - return 0; - if (s->gi.number_entry != 0 && s->gi.number_entry != UINT16_MAX) - { - if (s->num_file == s->gi.number_entry) - return 0; - } + return 0; + if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff) + if (s->num_file==s->gi.number_entry) + return 0; return s->pos_in_central_dir; } -extern int ZEXPORT unzSetOffset(unzFile file, uint32_t pos) +extern uLong ZEXPORT unzGetOffset (unzFile file) { - return unzSetOffset64(file, pos); + ZPOS64_T offset64; + + if (file==NULL) + return 0; //UNZ_PARAMERROR; + offset64 = unzGetOffset64(file); + return (uLong)offset64; } -extern int ZEXPORT unzSetOffset64(unzFile file, uint64_t pos) +extern int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos) { - unz64_s *s = NULL; - int err = UNZ_OK; + unz64_s* s; + int err; - if (file == NULL) + if (file==NULL) return UNZ_PARAMERROR; - s = (unz64_s*)file; + s=(unz64_s*)file; + s->pos_in_central_dir = pos; - s->num_file = s->gi.number_entry; /* hack */ - - err = unzGetCurrentFileInfoInternal(file, &s->cur_file_info, &s->cur_file_info_internal, NULL, 0, NULL, 0, NULL, 0); - + s->num_file = s->gi.number_entry; /* hack */ + err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, + &s->cur_file_info_internal, + NULL,0,NULL,0,NULL,0); s->current_file_ok = (err == UNZ_OK); return err; } -extern int32_t ZEXPORT unzTell(unzFile file) +extern int ZEXPORT unzSetOffset (unzFile file, uLong pos) { - unz64_s *s = NULL; - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - if (s->pfile_in_zip_read == NULL) - return UNZ_PARAMERROR; - return (int32_t)s->pfile_in_zip_read->stream.total_out; + return unzSetOffset64(file,pos); } - -extern int64_t ZEXPORT unzTell64(unzFile file) -{ - unz64_s *s = NULL; - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - if (s->pfile_in_zip_read == NULL) - return UNZ_PARAMERROR; - return s->pfile_in_zip_read->total_out_64; -} - -extern int ZEXPORT unzSeek(unzFile file, uint32_t offset, int origin) -{ - return unzSeek64(file, offset, origin); -} - -extern int ZEXPORT unzSeek64(unzFile file, uint64_t offset, int origin) -{ - unz64_s *s = NULL; - uint64_t stream_pos_begin = 0; - uint64_t stream_pos_end = 0; - uint64_t position = 0; - int is_within_buffer = 0; - - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - - if (s->pfile_in_zip_read == NULL) - return UNZ_ERRNO; - if (s->pfile_in_zip_read->compression_method != 0) - return UNZ_ERRNO; - - if (origin == SEEK_SET) - position = offset; - else if (origin == SEEK_CUR) - position = s->pfile_in_zip_read->total_out_64 + offset; - else if (origin == SEEK_END) - position = s->cur_file_info.compressed_size + offset; - else - return UNZ_PARAMERROR; - - if (position > s->cur_file_info.compressed_size) - return UNZ_PARAMERROR; - - stream_pos_end = s->pfile_in_zip_read->pos_in_zipfile; - stream_pos_begin = stream_pos_end; - - if (stream_pos_begin > UNZ_BUFSIZE) - stream_pos_begin -= UNZ_BUFSIZE; - else - stream_pos_begin = 0; - - is_within_buffer = - (s->pfile_in_zip_read->stream.avail_in != 0) && - (s->pfile_in_zip_read->rest_read_compressed != 0 || s->cur_file_info.compressed_size < UNZ_BUFSIZE) && - (position >= stream_pos_begin && position < stream_pos_end); - - if (is_within_buffer) - { - s->pfile_in_zip_read->stream.next_in += position - s->pfile_in_zip_read->total_out_64; - s->pfile_in_zip_read->stream.avail_in = (uInt)(stream_pos_end - position); - } - else - { - s->pfile_in_zip_read->stream.avail_in = 0; - s->pfile_in_zip_read->stream.next_in = 0; - - s->pfile_in_zip_read->pos_in_zipfile = s->pfile_in_zip_read->offset_local_extrafield + position; - s->pfile_in_zip_read->rest_read_compressed = s->cur_file_info.compressed_size - position; - } - - s->pfile_in_zip_read->rest_read_uncompressed -= (position - s->pfile_in_zip_read->total_out_64); - s->pfile_in_zip_read->stream.total_out = (uint32_t)position; - s->pfile_in_zip_read->total_out_64 = position; - - return UNZ_OK; -} - -extern int ZEXPORT unzEndOfFile(unzFile file) -{ - unz64_s *s = NULL; - if (file == NULL) - return UNZ_PARAMERROR; - s = (unz64_s*)file; - if (s->pfile_in_zip_read == NULL) - return UNZ_PARAMERROR; - if (s->pfile_in_zip_read->rest_read_uncompressed == 0) - return 1; - return 0; -} - -#ifdef _MSC_VER -# pragma warning(pop) -#endif // _MSC_VER diff --git a/contrib/unzip/unzip.h b/contrib/unzip/unzip.h index ea4c90a4d..6f95e94d7 100644 --- a/contrib/unzip/unzip.h +++ b/contrib/unzip/unzip.h @@ -1,21 +1,47 @@ /* unzip.h -- IO for uncompress .zip files using zlib Version 1.1, February 14h, 2010 - part of the MiniZip project + part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) - Copyright (C) 1998-2010 Gilles Vollant - http://www.winimage.com/zLibDll/minizip.html - Modifications of Unzip for Zip64 - Copyright (C) 2007-2008 Even Rouault - Modifications for Zip64 support on both zip and unzip - Copyright (C) 2009-2010 Mathias Svensson - http://result42.com + Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) + + Modifications of Unzip for Zip64 + Copyright (C) 2007-2008 Even Rouault + + Modifications for Zip64 support on both zip and unzip + Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) + + For more info read MiniZip_info.txt + + --------------------------------------------------------------------------------- + + Condition of use and distribution are the same than zlib : + + 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. + + --------------------------------------------------------------------------------- + + Changes + + See header of unzip64.c - This program is distributed under the terms of the same license as zlib. - See the accompanying LICENSE file for the full text of the license. */ -#ifndef _UNZ_H -#define _UNZ_H +#ifndef _unz64_H +#define _unz64_H #ifdef __cplusplus extern "C" { @@ -25,7 +51,7 @@ extern "C" { #include "zlib.h" #endif -#ifndef _ZLIBIOAPI_H +#ifndef _ZLIBIOAPI_H #include "ioapi.h" #endif @@ -38,12 +64,13 @@ extern "C" { #if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) /* like the STRICT of WIN32, we define a pointer that cannot be converted from (void*) without cast */ -typedef struct TagunzFile__ { int unused; } unz_file__; -typedef unz_file__ *unzFile; +typedef struct TagunzFile__ { int unused; } unzFile__; +typedef unzFile__ *unzFile; #else typedef voidp unzFile; #endif + #define UNZ_OK (0) #define UNZ_END_OF_LIST_OF_FILE (-100) #define UNZ_ERRNO (Z_ERRNO) @@ -52,255 +79,359 @@ typedef voidp unzFile; #define UNZ_BADZIPFILE (-103) #define UNZ_INTERNALERROR (-104) #define UNZ_CRCERROR (-105) -#define UNZ_BADPASSWORD (-106) + +/* tm_unz contain date/time info */ +typedef struct tm_unz_s +{ + int tm_sec; /* seconds after the minute - [0,59] */ + int tm_min; /* minutes after the hour - [0,59] */ + int tm_hour; /* hours since midnight - [0,23] */ + int tm_mday; /* day of the month - [1,31] */ + int tm_mon; /* months since January - [0,11] */ + int tm_year; /* years - [1980..2044] */ +} tm_unz; /* unz_global_info structure contain global data about the ZIPfile These data comes from the end of central dir */ typedef struct unz_global_info64_s { - uint64_t number_entry; /* total number of entries in the central dir on this disk */ - uint32_t number_disk_with_CD; /* number the the disk with central dir, used for spanning ZIP*/ - uint16_t size_comment; /* size of the global comment of the zipfile */ + ZPOS64_T number_entry; /* total number of entries in + the central dir on this disk */ + uLong size_comment; /* size of the global comment of the zipfile */ } unz_global_info64; typedef struct unz_global_info_s { - uint32_t number_entry; /* total number of entries in the central dir on this disk */ - uint32_t number_disk_with_CD; /* number the the disk with central dir, used for spanning ZIP*/ - uint16_t size_comment; /* size of the global comment of the zipfile */ + uLong number_entry; /* total number of entries in + the central dir on this disk */ + uLong size_comment; /* size of the global comment of the zipfile */ } unz_global_info; /* unz_file_info contain information about a file in the zipfile */ typedef struct unz_file_info64_s { - uint16_t version; /* version made by 2 bytes */ - uint16_t version_needed; /* version needed to extract 2 bytes */ - uint16_t flag; /* general purpose bit flag 2 bytes */ - uint16_t compression_method; /* compression method 2 bytes */ - uint32_t dos_date; /* last mod file date in Dos fmt 4 bytes */ - uint32_t crc; /* crc-32 4 bytes */ - uint64_t compressed_size; /* compressed size 8 bytes */ - uint64_t uncompressed_size; /* uncompressed size 8 bytes */ - uint16_t size_filename; /* filename length 2 bytes */ - uint16_t size_file_extra; /* extra field length 2 bytes */ - uint16_t size_file_comment; /* file comment length 2 bytes */ + uLong version; /* version made by 2 bytes */ + uLong version_needed; /* version needed to extract 2 bytes */ + uLong flag; /* general purpose bit flag 2 bytes */ + uLong compression_method; /* compression method 2 bytes */ + uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ + uLong crc; /* crc-32 4 bytes */ + ZPOS64_T compressed_size; /* compressed size 8 bytes */ + ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */ + uLong size_filename; /* filename length 2 bytes */ + uLong size_file_extra; /* extra field length 2 bytes */ + uLong size_file_comment; /* file comment length 2 bytes */ - uint32_t disk_num_start; /* disk number start 4 bytes */ - uint16_t internal_fa; /* internal file attributes 2 bytes */ - uint32_t external_fa; /* external file attributes 4 bytes */ + uLong disk_num_start; /* disk number start 2 bytes */ + uLong internal_fa; /* internal file attributes 2 bytes */ + uLong external_fa; /* external file attributes 4 bytes */ - uint64_t disk_offset; - - uint16_t size_file_extra_internal; + tm_unz tmu_date; } unz_file_info64; typedef struct unz_file_info_s { - uint16_t version; /* version made by 2 bytes */ - uint16_t version_needed; /* version needed to extract 2 bytes */ - uint16_t flag; /* general purpose bit flag 2 bytes */ - uint16_t compression_method; /* compression method 2 bytes */ - uint32_t dos_date; /* last mod file date in Dos fmt 4 bytes */ - uint32_t crc; /* crc-32 4 bytes */ - uint32_t compressed_size; /* compressed size 4 bytes */ - uint32_t uncompressed_size; /* uncompressed size 4 bytes */ - uint16_t size_filename; /* filename length 2 bytes */ - uint16_t size_file_extra; /* extra field length 2 bytes */ - uint16_t size_file_comment; /* file comment length 2 bytes */ + uLong version; /* version made by 2 bytes */ + uLong version_needed; /* version needed to extract 2 bytes */ + uLong flag; /* general purpose bit flag 2 bytes */ + uLong compression_method; /* compression method 2 bytes */ + uLong dosDate; /* last mod file date in Dos fmt 4 bytes */ + uLong crc; /* crc-32 4 bytes */ + uLong compressed_size; /* compressed size 4 bytes */ + uLong uncompressed_size; /* uncompressed size 4 bytes */ + uLong size_filename; /* filename length 2 bytes */ + uLong size_file_extra; /* extra field length 2 bytes */ + uLong size_file_comment; /* file comment length 2 bytes */ - uint16_t disk_num_start; /* disk number start 2 bytes */ - uint16_t internal_fa; /* internal file attributes 2 bytes */ - uint32_t external_fa; /* external file attributes 4 bytes */ + uLong disk_num_start; /* disk number start 2 bytes */ + uLong internal_fa; /* internal file attributes 2 bytes */ + uLong external_fa; /* external file attributes 4 bytes */ - uint64_t disk_offset; + tm_unz tmu_date; } unz_file_info; -/***************************************************************************/ -/* Opening and close a zip file */ +extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1, + const char* fileName2, + int iCaseSensitivity)); +/* + Compare two filename (fileName1,fileName2). + If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) + If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi + or strcasecmp) + If iCaseSenisivity = 0, case sensitivity is defaut of your operating system + (like 1 on Unix, 2 on Windows) +*/ -extern unzFile ZEXPORT unzOpen(const char *path); -extern unzFile ZEXPORT unzOpen64(const void *path); -/* Open a Zip file. - path should contain the full path (by example, on a Windows XP computer - "c:\\zlib\\zlib113.zip" or on an Unix computer "zlib/zlib113.zip". - return NULL if zipfile cannot be opened or doesn't exist - return unzFile handle if no error +extern unzFile ZEXPORT unzOpen OF((const char *path)); +extern unzFile ZEXPORT unzOpen64 OF((const void *path)); +/* + Open a Zip file. path contain the full pathname (by example, + on a Windows XP computer "c:\\zlib\\zlib113.zip" or on an Unix computer + "zlib/zlib113.zip". + If the zipfile cannot be opened (file don't exist or in not valid), the + return value is NULL. + Else, the return value is a unzFile Handle, usable with other function + of this unzip package. + the "64" function take a const void* pointer, because the path is just the + value passed to the open64_file_func callback. + Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path + is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char* + does not describe the reality +*/ - NOTE: The "64" function take a const void *pointer, because the path is just the value passed to the - open64_file_func callback. Under Windows, if UNICODE is defined, using fill_fopen64_filefunc, the path - is a pointer to a wide unicode string (LPCTSTR is LPCWSTR), so const char *does not describe the reality */ -extern unzFile ZEXPORT unzOpen2(const char *path, zlib_filefunc_def *pzlib_filefunc_def); -/* Open a Zip file, like unzOpen, but provide a set of file low level API for read/write operations */ -extern unzFile ZEXPORT unzOpen2_64(const void *path, zlib_filefunc64_def *pzlib_filefunc_def); -/* Open a Zip file, like unz64Open, but provide a set of file low level API for read/write 64-bit operations */ +extern unzFile ZEXPORT unzOpen2 OF((const char *path, + zlib_filefunc_def* pzlib_filefunc_def)); +/* + Open a Zip file, like unzOpen, but provide a set of file low level API + for read/write the zip file (see ioapi.h) +*/ -extern int ZEXPORT unzClose(unzFile file); -/* Close a ZipFile opened with unzOpen. If there is files inside the .Zip opened with unzOpenCurrentFile, - these files MUST be closed with unzipCloseCurrentFile before call unzipClose. +extern unzFile ZEXPORT unzOpen2_64 OF((const void *path, + zlib_filefunc64_def* pzlib_filefunc_def)); +/* + Open a Zip file, like unz64Open, but provide a set of file low level API + for read/write the zip file (see ioapi.h) +*/ - return UNZ_OK if there is no error */ +extern int ZEXPORT unzClose OF((unzFile file)); +/* + Close a ZipFile opened with unzOpen. + If there is files inside the .Zip opened with unzOpenCurrentFile (see later), + these files MUST be closed with unzCloseCurrentFile before call unzClose. + return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetGlobalInfo(unzFile file, unz_global_info *pglobal_info); -extern int ZEXPORT unzGetGlobalInfo64(unzFile file, unz_global_info64 *pglobal_info); -/* Write info about the ZipFile in the *pglobal_info structure. +extern int ZEXPORT unzGetGlobalInfo OF((unzFile file, + unz_global_info *pglobal_info)); - return UNZ_OK if no error */ +extern int ZEXPORT unzGetGlobalInfo64 OF((unzFile file, + unz_global_info64 *pglobal_info)); +/* + Write info about the ZipFile in the *pglobal_info structure. + No preparation of the structure is needed + return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetGlobalComment(unzFile file, char *comment, uint16_t comment_size); -/* Get the global comment string of the ZipFile, in the comment buffer. - uSizeBuf is the size of the szComment buffer. - return the number of byte copied or an error code <0 */ +extern int ZEXPORT unzGetGlobalComment OF((unzFile file, + char *szComment, + uLong uSizeBuf)); +/* + Get the global comment string of the ZipFile, in the szComment buffer. + uSizeBuf is the size of the szComment buffer. + return the number of byte copied or an error code <0 +*/ + /***************************************************************************/ -/* Reading the content of the current zipfile, you can open it, read data from it, and close it - (you can close it before reading all the file) */ +/* Unzip package allow you browse the directory of the zipfile */ -extern int ZEXPORT unzOpenCurrentFile(unzFile file); -/* Open for reading data the current file in the zipfile. +extern int ZEXPORT unzGoToFirstFile OF((unzFile file)); +/* + Set the current file of the zipfile to the first file. + return UNZ_OK if there is no problem +*/ - return UNZ_OK if no error */ +extern int ZEXPORT unzGoToNextFile OF((unzFile file)); +/* + Set the current file of the zipfile to the next file. + return UNZ_OK if there is no problem + return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. +*/ -extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file, const char *password); -/* Open for reading data the current file in the zipfile. - password is a crypting password +extern int ZEXPORT unzLocateFile OF((unzFile file, + const char *szFileName, + int iCaseSensitivity)); +/* + Try locate the file szFileName in the zipfile. + For the iCaseSensitivity signification, see unzStringFileNameCompare - return UNZ_OK if no error */ + return value : + UNZ_OK if the file is found. It becomes the current file. + UNZ_END_OF_LIST_OF_FILE if the file is not found +*/ -extern int ZEXPORT unzOpenCurrentFile2(unzFile file, int *method, int *level, int raw); -/* Same as unzOpenCurrentFile, but open for read raw the file (not uncompress) - if raw==1 *method will receive method of compression, *level will receive level of compression - - NOTE: you can set level parameter as NULL (if you did not want known level, - but you CANNOT set method parameter as NULL */ - -extern int ZEXPORT unzOpenCurrentFile3(unzFile file, int *method, int *level, int raw, const char *password); -/* Same as unzOpenCurrentFile, but takes extra parameter password for encrypted files */ - -extern int ZEXPORT unzReadCurrentFile(unzFile file, voidp buf, uint32_t len); -/* Read bytes from the current file (opened by unzOpenCurrentFile) - buf contain buffer where data must be copied - len the size of buf. - - return the number of byte copied if somes bytes are copied - return 0 if the end of file was reached - return <0 with error code if there is an error (UNZ_ERRNO for IO error, or zLib error for uncompress error) */ - -extern int ZEXPORT unzGetCurrentFileInfo(unzFile file, unz_file_info *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size); -extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file, unz_file_info64 *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size); -/* Get Info about the current file - - pfile_info if != NULL, the *pfile_info structure will contain somes info about the current file - filename if != NULL, the file name string will be copied in filename - filename_size is the size of the filename buffer - extrafield if != NULL, the extra field information from the central header will be copied in to - extrafield_size is the size of the extraField buffer - comment if != NULL, the comment string of the file will be copied in to - comment_size is the size of the comment buffer */ - -extern int ZEXPORT unzGetLocalExtrafield(unzFile file, voidp buf, uint32_t len); -/* Read extra field from the current file (opened by unzOpenCurrentFile) - This is the local-header version of the extra field (sometimes, there is - more info in the local-header version than in the central-header) - - if buf == NULL, it return the size of the local extra field - if buf != NULL, len is the size of the buffer, the extra header is copied in buf. - - return number of bytes copied in buf, or (if <0) the error code */ - -extern int ZEXPORT unzCloseCurrentFile(unzFile file); -/* Close the file in zip opened with unzOpenCurrentFile - - return UNZ_CRCERROR if all the file was read but the CRC is not good */ - -/***************************************************************************/ -/* Browse the directory of the zipfile */ - -typedef int (*unzFileNameComparer)(unzFile file, const char *filename1, const char *filename2); -typedef int (*unzIteratorFunction)(unzFile file); -typedef int (*unzIteratorFunction2)(unzFile file, unz_file_info64 *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size); - -extern int ZEXPORT unzGoToFirstFile(unzFile file); -/* Set the current file of the zipfile to the first file. - - return UNZ_OK if no error */ - -extern int ZEXPORT unzGoToFirstFile2(unzFile file, unz_file_info64 *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size); -/* Set the current file of the zipfile to the first file and retrieves the current info on success. - Not as seek intensive as unzGoToFirstFile + unzGetCurrentFileInfo. - - return UNZ_OK if no error */ - -extern int ZEXPORT unzGoToNextFile(unzFile file); -/* Set the current file of the zipfile to the next file. - - return UNZ_OK if no error - return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest */ - -extern int ZEXPORT unzGoToNextFile2(unzFile file, unz_file_info64 *pfile_info, char *filename, - uint16_t filename_size, void *extrafield, uint16_t extrafield_size, char *comment, uint16_t comment_size); -/* Set the current file of the zipfile to the next file and retrieves the current - info on success. Does less seeking around than unzGotoNextFile + unzGetCurrentFileInfo. - - return UNZ_OK if no error - return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest */ - -extern int ZEXPORT unzLocateFile(unzFile file, const char *filename, unzFileNameComparer filename_compare_func); -/* Try locate the file szFileName in the zipfile. For custom filename comparison pass in comparison function. - - return UNZ_OK if the file is found (it becomes the current file) - return UNZ_END_OF_LIST_OF_FILE if the file is not found */ - -/***************************************************************************/ -/* Raw access to zip file */ +/* ****************************************** */ +/* Ryan supplied functions */ +/* unz_file_info contain information about a file in the zipfile */ typedef struct unz_file_pos_s { - uint32_t pos_in_zip_directory; /* offset in zip file directory */ - uint32_t num_of_file; /* # of file */ + uLong pos_in_zip_directory; /* offset in zip file directory */ + uLong num_of_file; /* # of file */ } unz_file_pos; -extern int ZEXPORT unzGetFilePos(unzFile file, unz_file_pos *file_pos); -extern int ZEXPORT unzGoToFilePos(unzFile file, unz_file_pos *file_pos); +extern int ZEXPORT unzGetFilePos( + unzFile file, + unz_file_pos* file_pos); + +extern int ZEXPORT unzGoToFilePos( + unzFile file, + unz_file_pos* file_pos); typedef struct unz64_file_pos_s { - uint64_t pos_in_zip_directory; /* offset in zip file directory */ - uint64_t num_of_file; /* # of file */ + ZPOS64_T pos_in_zip_directory; /* offset in zip file directory */ + ZPOS64_T num_of_file; /* # of file */ } unz64_file_pos; -extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos *file_pos); -extern int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos *file_pos); +extern int ZEXPORT unzGetFilePos64( + unzFile file, + unz64_file_pos* file_pos); -extern int32_t ZEXPORT unzGetOffset(unzFile file); -extern int64_t ZEXPORT unzGetOffset64(unzFile file); -/* Get the current file offset */ +extern int ZEXPORT unzGoToFilePos64( + unzFile file, + const unz64_file_pos* file_pos); -extern int ZEXPORT unzSetOffset(unzFile file, uint32_t pos); -extern int ZEXPORT unzSetOffset64(unzFile file, uint64_t pos); -/* Set the current file offset */ +/* ****************************************** */ -extern int32_t ZEXPORT unzTell(unzFile file); -extern int64_t ZEXPORT unzTell64(unzFile file); -/* return current position in uncompressed data */ +extern int ZEXPORT unzGetCurrentFileInfo64 OF((unzFile file, + unz_file_info64 *pfile_info, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); -extern int ZEXPORT unzSeek(unzFile file, uint32_t offset, int origin); -extern int ZEXPORT unzSeek64(unzFile file, uint64_t offset, int origin); -/* Seek within the uncompressed data if compression method is storage */ +extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file, + unz_file_info *pfile_info, + char *szFileName, + uLong fileNameBufferSize, + void *extraField, + uLong extraFieldBufferSize, + char *szComment, + uLong commentBufferSize)); +/* + Get Info about the current file + if pfile_info!=NULL, the *pfile_info structure will contain somes info about + the current file + if szFileName!=NULL, the filemane string will be copied in szFileName + (fileNameBufferSize is the size of the buffer) + if extraField!=NULL, the extra field information will be copied in extraField + (extraFieldBufferSize is the size of the buffer). + This is the Central-header version of the extra field + if szComment!=NULL, the comment string of the file will be copied in szComment + (commentBufferSize is the size of the buffer) +*/ + + +/** Addition for GDAL : START */ + +extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64 OF((unzFile file)); + +/** Addition for GDAL : END */ -extern int ZEXPORT unzEndOfFile(unzFile file); -/* return 1 if the end of file was reached, 0 elsewhere */ /***************************************************************************/ +/* for reading the content of the current zipfile, you can open it, read data + from it, and close it (you can close it before reading all the file) + */ + +extern int ZEXPORT unzOpenCurrentFile OF((unzFile file)); +/* + Open for reading data the current file in the zipfile. + If there is no error, the return value is UNZ_OK. +*/ + +extern int ZEXPORT unzOpenCurrentFilePassword OF((unzFile file, + const char* password)); +/* + Open for reading data the current file in the zipfile. + password is a crypting password + If there is no error, the return value is UNZ_OK. +*/ + +extern int ZEXPORT unzOpenCurrentFile2 OF((unzFile file, + int* method, + int* level, + int raw)); +/* + Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) + if raw==1 + *method will receive method of compression, *level will receive level of + compression + note : you can set level parameter as NULL (if you did not want known level, + but you CANNOT set method parameter as NULL +*/ + +extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file, + int* method, + int* level, + int raw, + const char* password)); +/* + Same than unzOpenCurrentFile, but open for read raw the file (not uncompress) + if raw==1 + *method will receive method of compression, *level will receive level of + compression + note : you can set level parameter as NULL (if you did not want known level, + but you CANNOT set method parameter as NULL +*/ + + +extern int ZEXPORT unzCloseCurrentFile OF((unzFile file)); +/* + Close the file in zip opened with unzOpenCurrentFile + Return UNZ_CRCERROR if all the file was read but the CRC is not good +*/ + +extern int ZEXPORT unzReadCurrentFile OF((unzFile file, + voidp buf, + unsigned len)); +/* + Read bytes from the current file (opened by unzOpenCurrentFile) + buf contain buffer where data must be copied + len the size of buf. + + return the number of byte copied if somes bytes are copied + return 0 if the end of file was reached + return <0 with error code if there is an error + (UNZ_ERRNO for IO error, or zLib error for uncompress error) +*/ + +extern z_off_t ZEXPORT unztell OF((unzFile file)); + +extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file)); +/* + Give the current position in uncompressed data +*/ + +extern int ZEXPORT unzeof OF((unzFile file)); +/* + return 1 if the end of file was reached, 0 elsewhere +*/ + +extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file, + voidp buf, + unsigned len)); +/* + Read extra field from the current file (opened by unzOpenCurrentFile) + This is the local-header version of the extra field (sometimes, there is + more info in the local-header version than in the central-header) + + if buf==NULL, it return the size of the local extra field + + if buf!=NULL, len is the size of the buffer, the extra header is copied in + buf. + the return value is the number of bytes copied in buf, or (if <0) + the error code +*/ + +/***************************************************************************/ + +/* Get the current file offset */ +extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file); +extern uLong ZEXPORT unzGetOffset (unzFile file); + +/* Set the current file offset */ +extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos); +extern int ZEXPORT unzSetOffset (unzFile file, uLong pos); + + #ifdef __cplusplus } #endif -#endif /* _UNZ_H */ +#endif /* _unz64_H */