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Merge pull request #5121 from sashashura/6521292621217792 

Fix Memcpy-param-overlap in unzReadCurrentFile
pull/5122/head^2
Kim Kulling 2023-06-26 23:51:36 +02:00 committed by GitHub
parent bce2fdbbe9 1830a8aad2
commit 41e2b0f5dc
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
7 changed files with 2362 additions and 2251 deletions
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1
code/CMakeLists.txt
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@ -965,7 +965,6 @@ IF(ASSIMP_HUNTER_ENABLED)
find_package(minizip CONFIG REQUIRED) find_package(minizip CONFIG REQUIRED)
ELSE() ELSE()
SET( unzip_SRCS SET( unzip_SRCS
../contrib/unzip/crypt.c
../contrib/unzip/crypt.h ../contrib/unzip/crypt.h
../contrib/unzip/ioapi.c ../contrib/unzip/ioapi.c
../contrib/unzip/ioapi.h ../contrib/unzip/ioapi.h

172
contrib/unzip/crypt.c
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@ -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 <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <time.h>
#ifdef _WIN32
# include <windows.h>
# include <wincrypt.h>
#else
# include <sys/stat.h>
# include <fcntl.h>
# include <unistd.h>
#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
/***************************************************************************/

147
contrib/unzip/crypt.h
View File

@ -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 Version 1.01e, February 12th, 2005
Copyright (C) 1998-2005 Gilles Vollant 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. This encryption code is a direct transcription of the algorithm from
See the accompanying LICENSE file for the full text of the license. 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 CRC32(c, b) ((*(pcrc_32_tab+(((int)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))
#define _MINICRYPT_H
#if ZLIB_VERNUM < 0x1270 /***********************************************************************
#if !defined(Z_U4) * Return the next byte in the pseudo-random sequence
typedef unsigned long z_crc_t; */
#endif static int decrypt_byte(unsigned long* pkeys, const z_crc_t* pcrc_32_tab)
#endif {
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 (void)pcrc_32_tab;
extern "C" { temp = ((unsigned)(*(pkeys+2)) & 0xffff) | 2;
#endif 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) \ #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) \ #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 */ #define RAND_HEAD_LEN 12
uint8_t decrypt_byte(uint32_t *pkeys); /* "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 */ static unsigned crypthead(const char* passwd, /* password string */
uint8_t update_keys(uint32_t *pkeys, const z_crc_t *pcrc_32_tab, int32_t c); 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. */ if (bufSize<RAND_HEAD_LEN)
void init_keys(const char *passwd, uint32_t *pkeys, const z_crc_t *pcrc_32_tab); return 0;
/* Generate cryptographically secure random numbers */ /* First generate RAND_HEAD_LEN-2 random bytes. We encrypt the
int cryptrand(unsigned char *buf, unsigned int len); * output of rand() to get less predictability, since rand() is
* often poorly implemented.
/* Create encryption header */ */
int crypthead(const char *passwd, uint8_t *buf, int buf_size, uint32_t *pkeys, if (++calls == 1)
const z_crc_t *pcrc_32_tab, uint8_t verify1, uint8_t verify2); {
srand((unsigned)(time(NULL) ^ ZCR_SEED2));
/***************************************************************************/ }
init_keys(passwd, pkeys, pcrc_32_tab);
#ifdef __cplusplus for (n = 0; n < RAND_HEAD_LEN-2; n++)
{
c = (rand() >> 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 #endif

353
contrib/unzip/ioapi.c
View File

@ -1,81 +1,75 @@
/* ioapi.c -- IO base function header for compress/uncompress .zip /* 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 (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
Copyright (C) 1998-2010 Gilles Vollant
http://www.winimage.com/zLibDll/minizip.html
Modifications for Zip64 support Modifications for Zip64 support
Copyright (C) 2009-2010 Mathias Svensson Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
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 <stdlib.h> #if defined(_WIN32) && (!(defined(_CRT_SECURE_NO_WARNINGS)))
#include <string.h> #define _CRT_SECURE_NO_WARNINGS
#if defined unix || defined __APPLE__
#include <sys/types.h>
#include <unistd.h>
#endif #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" #include "ioapi.h"
#ifdef _WIN32 voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
# 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)
{ {
if (pfilefunc->zfile_func64.zopen64_file != NULL) if (pfilefunc->zfile_func64.zopen64_file != NULL)
return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque, filename, mode); return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque, (const char*)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) if (pfilefunc->zfile_func64.zseek64_file != NULL)
return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin); return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
offset_truncated = (uint32_t)offset; else
if (offset_truncated != offset) {
uLong offsetTruncated = (uLong)offset;
if (offsetTruncated != offset)
return -1; return -1;
return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream, offset_truncated, origin); 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) if (pfilefunc->zfile_func64.zseek64_file != NULL)
return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque, filestream); return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
position = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque, filestream); else
if ((position) == UINT32_MAX) {
return (uint64_t)-1; uLong tell_uLong = (uLong)(*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
return position; 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.zopen64_file = NULL;
p_filefunc64_32->zfile_func64.zopendisk64_file = NULL;
p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file; 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.zerror_file = p_filefunc32->zerror_file;
p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file; p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_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; 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) 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));
FILE_IOPOSIX *ioposix = NULL; static uLong ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
if (file == NULL) static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
return NULL; static long ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
ioposix = (FILE_IOPOSIX*)malloc(sizeof(FILE_IOPOSIX)); static int ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
ioposix->file = file; static int ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
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(voidpf opaque, const char *filename, int mode) static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
{ {
FILE* file = NULL; FILE* file = NULL;
const char *mode_fopen = NULL; const char* mode_fopen = NULL;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ) (void)opaque;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
mode_fopen = "rb"; mode_fopen = "rb";
else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) else
if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
mode_fopen = "r+b"; mode_fopen = "r+b";
else if (mode & ZLIB_FILEFUNC_MODE_CREATE) else
if (mode & ZLIB_FILEFUNC_MODE_CREATE)
mode_fopen = "wb"; mode_fopen = "wb";
if ((filename != NULL) && (mode_fopen != NULL)) if ((filename!=NULL) && (mode_fopen != NULL))
{
file = fopen(filename, mode_fopen); file = fopen(filename, mode_fopen);
return file_build_ioposix(file, filename);
}
return file; 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; FILE* file = NULL;
const char *mode_fopen = NULL; const char* mode_fopen = NULL;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER) == ZLIB_FILEFUNC_MODE_READ) (void)opaque;
if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
mode_fopen = "rb"; mode_fopen = "rb";
else if (mode & ZLIB_FILEFUNC_MODE_EXISTING) else
if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
mode_fopen = "r+b"; mode_fopen = "r+b";
else if (mode & ZLIB_FILEFUNC_MODE_CREATE) else
if (mode & ZLIB_FILEFUNC_MODE_CREATE)
mode_fopen = "wb"; mode_fopen = "wb";
if ((filename != NULL) && (mode_fopen != NULL)) if ((filename!=NULL) && (mode_fopen != NULL))
{ file = FOPEN_FUNC((const char*)filename, mode_fopen);
file = fopen64((const char*)filename, mode_fopen);
return file_build_ioposix(file, (const char*)filename);
}
return file; 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) static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
return NULL; {
ioposix = (FILE_IOPOSIX*)stream; uLong ret;
diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char)); (void)opaque;
strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength); ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
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);
return ret; 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; uLong ret;
char *diskFilename = NULL; (void)opaque;
voidpf ret = NULL; ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
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);
return ret; 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; long ret;
uint32_t read = (uint32_t)-1; (void)opaque;
if (stream == NULL) ret = ftell((FILE *)stream);
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);
return ret; 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; ZPOS64_T ret;
uint64_t ret = (uint64_t)-1; (void)opaque;
if (stream == NULL) ret = (ZPOS64_T)FTELLO_FUNC((FILE *)stream);
return ret;
ioposix = (FILE_IOPOSIX*)stream;
ret = ftello64(ioposix->file);
return ret; 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;
int fseek_origin = 0; long ret;
long ret = 0; (void)opaque;
if (stream == NULL)
return -1;
ioposix = (FILE_IOPOSIX*)stream;
switch (origin) switch (origin)
{ {
case ZLIB_FILEFUNC_SEEK_CUR: case ZLIB_FILEFUNC_SEEK_CUR :
fseek_origin = SEEK_CUR; fseek_origin = SEEK_CUR;
break; break;
case ZLIB_FILEFUNC_SEEK_END: case ZLIB_FILEFUNC_SEEK_END :
fseek_origin = SEEK_END; fseek_origin = SEEK_END;
break; break;
case ZLIB_FILEFUNC_SEEK_SET: case ZLIB_FILEFUNC_SEEK_SET :
fseek_origin = SEEK_SET; fseek_origin = SEEK_SET;
break; break;
default: default: return -1;
return -1;
} }
if (fseek(ioposix->file, offset, fseek_origin) != 0) ret = 0;
if (fseek((FILE *)stream, (long)offset, fseek_origin) != 0)
ret = -1; ret = -1;
return ret; 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;
int fseek_origin = 0; long ret;
long ret = 0; (void)opaque;
if (stream == NULL)
return -1;
ioposix = (FILE_IOPOSIX*)stream;
switch (origin) switch (origin)
{ {
case ZLIB_FILEFUNC_SEEK_CUR: case ZLIB_FILEFUNC_SEEK_CUR :
fseek_origin = SEEK_CUR; fseek_origin = SEEK_CUR;
break; break;
case ZLIB_FILEFUNC_SEEK_END: case ZLIB_FILEFUNC_SEEK_END :
fseek_origin = SEEK_END; fseek_origin = SEEK_END;
break; break;
case ZLIB_FILEFUNC_SEEK_SET: case ZLIB_FILEFUNC_SEEK_SET :
fseek_origin = SEEK_SET; fseek_origin = SEEK_SET;
break; break;
default: default: return -1;
return -1;
} }
ret = 0;
if (fseeko64(ioposix->file, offset, fseek_origin) != 0) if(FSEEKO_FUNC((FILE *)stream, (z_off_t)offset, fseek_origin) != 0)
ret = -1; ret = -1;
return ret; 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;
int ret = -1; (void)opaque;
if (stream == NULL) ret = fclose((FILE *)stream);
return ret;
ioposix = (FILE_IOPOSIX*)stream;
if (ioposix->filename != NULL)
free(ioposix->filename);
ret = fclose(ioposix->file);
free(ioposix);
return ret; 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;
int ret = -1; (void)opaque;
if (stream == NULL) ret = ferror((FILE *)stream);
return ret;
ioposix = (FILE_IOPOSIX*)stream;
ret = ferror(ioposix->file);
return ret; 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->zopen_file = fopen_file_func;
pzlib_filefunc_def->zopendisk_file = fopendisk_file_func;
pzlib_filefunc_def->zread_file = fread_file_func; pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func; pzlib_filefunc_def->zwrite_file = fwrite_file_func;
pzlib_filefunc_def->ztell_file = ftell_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; 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->zopen64_file = fopen64_file_func;
pzlib_filefunc_def->zopendisk64_file = fopendisk64_file_func;
pzlib_filefunc_def->zread_file = fread_file_func; pzlib_filefunc_def->zread_file = fread_file_func;
pzlib_filefunc_def->zwrite_file = fwrite_file_func; pzlib_filefunc_def->zwrite_file = fwrite_file_func;
pzlib_filefunc_def->ztell64_file = ftell64_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->zerror_file = ferror_file_func;
pzlib_filefunc_def->opaque = NULL; pzlib_filefunc_def->opaque = NULL;
} }
#ifdef _MSC_VER
# pragma warning(pop)
# ifdef __clang__
# pragma clang diagnostic pop
# endif
#endif // _MSC_VER

181
contrib/unzip/ioapi.h
View File

@ -1,50 +1,116 @@
/* ioapi.h -- IO base function header for compress/uncompress .zip /* 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 (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
Copyright (C) 1998-2010 Gilles Vollant
http://www.winimage.com/zLibDll/minizip.html
Modifications for Zip64 support Modifications for Zip64 support
Copyright (C) 2009-2010 Mathias Svensson Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
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 #ifndef _ZLIBIOAPI64_H
#define _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 <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <stdint.h>
#include "zlib.h" #include "zlib.h"
#if defined(USE_FILE32API) #if defined(USE_FILE32API)
# define fopen64 fopen #define fopen64 fopen
# define ftello64 ftell #define ftello64 ftell
# define fseeko64 fseek #define fseeko64 fseek
#else #else
#if defined(_MSC_VER) #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
# define fopen64 fopen #define fopen64 fopen
# if (_MSC_VER >= 1400) && (!(defined(NO_MSCVER_FILE64_FUNC))) #define ftello64 ftello
# define ftello64 _ftelli64 #define fseeko64 fseeko
# define fseeko64 _fseeki64
# else /* old MSC */
# define ftello64 ftell
# define fseeko64 fseek
# endif
#else
# define fopen64 fopen
# define ftello64 ftello
# define fseeko64 fseeko
#endif #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 <stdint.h>
#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 #endif
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
#endif #endif
#define ZLIB_FILEFUNC_SEEK_CUR (1) #define ZLIB_FILEFUNC_SEEK_CUR (1)
#define ZLIB_FILEFUNC_SEEK_END (2) #define ZLIB_FILEFUNC_SEEK_END (2)
#define ZLIB_FILEFUNC_SEEK_SET (0) #define ZLIB_FILEFUNC_SEEK_SET (0)
@ -52,89 +118,88 @@ extern "C" {
#define ZLIB_FILEFUNC_MODE_READ (1) #define ZLIB_FILEFUNC_MODE_READ (1)
#define ZLIB_FILEFUNC_MODE_WRITE (2) #define ZLIB_FILEFUNC_MODE_WRITE (2)
#define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3) #define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
#define ZLIB_FILEFUNC_MODE_EXISTING (4) #define ZLIB_FILEFUNC_MODE_EXISTING (4)
#define ZLIB_FILEFUNC_MODE_CREATE (8) #define ZLIB_FILEFUNC_MODE_CREATE (8)
#ifndef ZCALLBACK #ifndef ZCALLBACK
# if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || \ #if (defined(WIN32) || defined(_WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK) #define ZCALLBACK CALLBACK
# define ZCALLBACK CALLBACK #else
# else #define ZCALLBACK
# define ZCALLBACK #endif
# endif
#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 */ /* here is the "old" 32 bits structure structure */
typedef struct zlib_filefunc_def_s typedef struct zlib_filefunc_def_s
{ {
open_file_func zopen_file; open_file_func zopen_file;
opendisk_file_func zopendisk_file;
read_file_func zread_file; read_file_func zread_file;
write_file_func zwrite_file; write_file_func zwrite_file;
tell_file_func ztell_file; tell_file_func ztell_file;
seek_file_func zseek_file; seek_file_func zseek_file;
close_file_func zclose_file; close_file_func zclose_file;
error_file_func zerror_file; testerror_file_func zerror_file;
voidpf opaque; voidpf opaque;
} zlib_filefunc_def; } zlib_filefunc_def;
typedef uint64_t (ZCALLBACK *tell64_file_func) (voidpf opaque, voidpf stream); typedef ZPOS64_T (ZCALLBACK *tell64_file_func) OF((voidpf opaque, voidpf stream));
typedef long (ZCALLBACK *seek64_file_func) (voidpf opaque, voidpf stream, uint64_t offset, int origin); typedef long (ZCALLBACK *seek64_file_func) OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
typedef voidpf (ZCALLBACK *open64_file_func) (voidpf opaque, const void *filename, int mode); typedef voidpf (ZCALLBACK *open64_file_func) OF((voidpf opaque, const void* filename, int mode));
typedef voidpf (ZCALLBACK *opendisk64_file_func)(voidpf opaque, voidpf stream, uint32_t number_disk, int mode);
typedef struct zlib_filefunc64_def_s typedef struct zlib_filefunc64_def_s
{ {
open64_file_func zopen64_file; open64_file_func zopen64_file;
opendisk64_file_func zopendisk64_file;
read_file_func zread_file; read_file_func zread_file;
write_file_func zwrite_file; write_file_func zwrite_file;
tell64_file_func ztell64_file; tell64_file_func ztell64_file;
seek64_file_func zseek64_file; seek64_file_func zseek64_file;
close_file_func zclose_file; close_file_func zclose_file;
error_file_func zerror_file; testerror_file_func zerror_file;
voidpf opaque; voidpf opaque;
} zlib_filefunc64_def; } zlib_filefunc64_def;
void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def); void fill_fopen64_filefunc OF((zlib_filefunc64_def* pzlib_filefunc_def));
void fill_fopen64_filefunc(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 */ /* now internal definition, only for zip.c and unzip.h */
typedef struct zlib_filefunc64_32_def_s typedef struct zlib_filefunc64_32_def_s
{ {
zlib_filefunc64_def zfile_func64; zlib_filefunc64_def zfile_func64;
open_file_func zopen32_file; open_file_func zopen32_file;
opendisk_file_func zopendisk32_file;
tell_file_func ztell32_file; tell_file_func ztell32_file;
seek_file_func zseek32_file; seek_file_func zseek32_file;
} zlib_filefunc64_32_def; } zlib_filefunc64_32_def;
#define ZREAD64(filefunc,filestream,buf,size) ((*((filefunc).zfile_func64.zread_file)) ((filefunc).zfile_func64.opaque,filestream,buf,size)) #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 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 ZTELL64(filefunc,filestream) ((*((filefunc).ztell64_file)) ((filefunc).opaque,filestream))
/*#define ZSEEK64(filefunc,filestream,pos,mode) ((*((filefunc).zseek64_file)) ((filefunc).opaque,filestream,pos,mode))*/ //#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 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)) #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_zopen64 OF((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 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin));
long call_zseek64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream, uint64_t offset, int origin); ZPOS64_T call_ztell64 OF((const zlib_filefunc64_32_def* pfilefunc,voidpf filestream));
uint64_t call_ztell64(const zlib_filefunc64_32_def *pfilefunc, voidpf filestream);
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);
#define ZOPEN64(filefunc,filename,mode) (call_zopen64((&(filefunc)),(filename),(mode))) #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 ZTELL64(filefunc,filestream) (call_ztell64((&(filefunc)),(filestream)))
#define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode))) #define ZSEEK64(filefunc,filestream,pos,mode) (call_zseek64((&(filefunc)),(filestream),(pos),(mode)))

3008
contrib/unzip/unzip.c
View File

File diff suppressed because it is too large Load Diff

517
contrib/unzip/unzip.h
View File

@ -1,21 +1,47 @@
/* unzip.h -- IO for uncompress .zip files using zlib /* unzip.h -- IO for uncompress .zip files using zlib
Version 1.1, February 14h, 2010 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 (minizip) ( 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 Modifications of Unzip for Zip64
Copyright (C) 2007-2008 Even Rouault Copyright (C) 2007-2008 Even Rouault
Modifications for Zip64 support on both zip and unzip
Copyright (C) 2009-2010 Mathias Svensson
http://result42.com
This program is distributed under the terms of the same license as zlib. Modifications for Zip64 support on both zip and unzip
See the accompanying LICENSE file for the full text of the license. 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
*/ */
#ifndef _UNZ_H #ifndef _unz64_H
#define _UNZ_H #define _unz64_H
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
@ -38,12 +64,13 @@ extern "C" {
#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP) #if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
/* like the STRICT of WIN32, we define a pointer that cannot be converted /* like the STRICT of WIN32, we define a pointer that cannot be converted
from (void*) without cast */ from (void*) without cast */
typedef struct TagunzFile__ { int unused; } unz_file__; typedef struct TagunzFile__ { int unused; } unzFile__;
typedef unz_file__ *unzFile; typedef unzFile__ *unzFile;
#else #else
typedef voidp unzFile; typedef voidp unzFile;
#endif #endif
#define UNZ_OK (0) #define UNZ_OK (0)
#define UNZ_END_OF_LIST_OF_FILE (-100) #define UNZ_END_OF_LIST_OF_FILE (-100)
#define UNZ_ERRNO (Z_ERRNO) #define UNZ_ERRNO (Z_ERRNO)
@ -52,255 +79,359 @@ typedef voidp unzFile;
#define UNZ_BADZIPFILE (-103) #define UNZ_BADZIPFILE (-103)
#define UNZ_INTERNALERROR (-104) #define UNZ_INTERNALERROR (-104)
#define UNZ_CRCERROR (-105) #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 /* unz_global_info structure contain global data about the ZIPfile
These data comes from the end of central dir */ These data comes from the end of central dir */
typedef struct unz_global_info64_s typedef struct unz_global_info64_s
{ {
uint64_t number_entry; /* total number of entries in the central dir on this disk */ ZPOS64_T number_entry; /* total number of entries in
uint32_t number_disk_with_CD; /* number the the disk with central dir, used for spanning ZIP*/ the central dir on this disk */
uint16_t size_comment; /* size of the global comment of the zipfile */ uLong size_comment; /* size of the global comment of the zipfile */
} unz_global_info64; } unz_global_info64;
typedef struct unz_global_info_s typedef struct unz_global_info_s
{ {
uint32_t number_entry; /* total number of entries in the central dir on this disk */ uLong number_entry; /* total number of entries in
uint32_t number_disk_with_CD; /* number the the disk with central dir, used for spanning ZIP*/ the central dir on this disk */
uint16_t size_comment; /* size of the global comment of the zipfile */ uLong size_comment; /* size of the global comment of the zipfile */
} unz_global_info; } unz_global_info;
/* unz_file_info contain information about a file in the zipfile */ /* unz_file_info contain information about a file in the zipfile */
typedef struct unz_file_info64_s typedef struct unz_file_info64_s
{ {
uint16_t version; /* version made by 2 bytes */ uLong version; /* version made by 2 bytes */
uint16_t version_needed; /* version needed to extract 2 bytes */ uLong version_needed; /* version needed to extract 2 bytes */
uint16_t flag; /* general purpose bit flag 2 bytes */ uLong flag; /* general purpose bit flag 2 bytes */
uint16_t compression_method; /* compression method 2 bytes */ uLong compression_method; /* compression method 2 bytes */
uint32_t dos_date; /* last mod file date in Dos fmt 4 bytes */ uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
uint32_t crc; /* crc-32 4 bytes */ uLong crc; /* crc-32 4 bytes */
uint64_t compressed_size; /* compressed size 8 bytes */ ZPOS64_T compressed_size; /* compressed size 8 bytes */
uint64_t uncompressed_size; /* uncompressed size 8 bytes */ ZPOS64_T uncompressed_size; /* uncompressed size 8 bytes */
uint16_t size_filename; /* filename length 2 bytes */ uLong size_filename; /* filename length 2 bytes */
uint16_t size_file_extra; /* extra field length 2 bytes */ uLong size_file_extra; /* extra field length 2 bytes */
uint16_t size_file_comment; /* file comment length 2 bytes */ uLong size_file_comment; /* file comment length 2 bytes */
uint32_t disk_num_start; /* disk number start 4 bytes */ uLong disk_num_start; /* disk number start 2 bytes */
uint16_t internal_fa; /* internal file attributes 2 bytes */ uLong internal_fa; /* internal file attributes 2 bytes */
uint32_t external_fa; /* external file attributes 4 bytes */ uLong external_fa; /* external file attributes 4 bytes */
uint64_t disk_offset; tm_unz tmu_date;
uint16_t size_file_extra_internal;
} unz_file_info64; } unz_file_info64;
typedef struct unz_file_info_s typedef struct unz_file_info_s
{ {
uint16_t version; /* version made by 2 bytes */ uLong version; /* version made by 2 bytes */
uint16_t version_needed; /* version needed to extract 2 bytes */ uLong version_needed; /* version needed to extract 2 bytes */
uint16_t flag; /* general purpose bit flag 2 bytes */ uLong flag; /* general purpose bit flag 2 bytes */
uint16_t compression_method; /* compression method 2 bytes */ uLong compression_method; /* compression method 2 bytes */
uint32_t dos_date; /* last mod file date in Dos fmt 4 bytes */ uLong dosDate; /* last mod file date in Dos fmt 4 bytes */
uint32_t crc; /* crc-32 4 bytes */ uLong crc; /* crc-32 4 bytes */
uint32_t compressed_size; /* compressed size 4 bytes */ uLong compressed_size; /* compressed size 4 bytes */
uint32_t uncompressed_size; /* uncompressed size 4 bytes */ uLong uncompressed_size; /* uncompressed size 4 bytes */
uint16_t size_filename; /* filename length 2 bytes */ uLong size_filename; /* filename length 2 bytes */
uint16_t size_file_extra; /* extra field length 2 bytes */ uLong size_file_extra; /* extra field length 2 bytes */
uint16_t size_file_comment; /* file comment length 2 bytes */ uLong size_file_comment; /* file comment length 2 bytes */
uint16_t disk_num_start; /* disk number start 2 bytes */ uLong disk_num_start; /* disk number start 2 bytes */
uint16_t internal_fa; /* internal file attributes 2 bytes */ uLong internal_fa; /* internal file attributes 2 bytes */
uint32_t external_fa; /* external file attributes 4 bytes */ uLong external_fa; /* external file attributes 4 bytes */
uint64_t disk_offset; tm_unz tmu_date;
} unz_file_info; } unz_file_info;
/***************************************************************************/ extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
/* Opening and close a zip file */ 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 extern unzFile ZEXPORT unzOpen OF((const char *path));
"c:\\zlib\\zlib113.zip" or on an Unix computer "zlib/zlib113.zip". extern unzFile ZEXPORT unzOpen64 OF((const void *path));
return NULL if zipfile cannot be opened or doesn't exist /*
return unzFile handle if no error 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); extern unzFile ZEXPORT unzOpen2 OF((const char *path,
/* Open a Zip file, like unzOpen, but provide a set of file low level API for read/write operations */ zlib_filefunc_def* pzlib_filefunc_def));
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 */ 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); extern unzFile ZEXPORT unzOpen2_64 OF((const void *path,
/* Close a ZipFile opened with unzOpen. If there is files inside the .Zip opened with unzOpenCurrentFile, zlib_filefunc64_def* pzlib_filefunc_def));
these files MUST be closed with unzipCloseCurrentFile before call unzipClose. /*
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 unzGetGlobalInfo OF((unzFile file,
extern int ZEXPORT unzGetGlobalInfo64(unzFile file, unz_global_info64 *pglobal_info); unz_global_info *pglobal_info));
/* Write info about the ZipFile in the *pglobal_info structure.
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.
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. uSizeBuf is the size of the szComment buffer.
return the number of byte copied or an error code <0 */ 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 /* Unzip package allow you browse the directory of the zipfile */
(you can close it before reading all the file) */
extern int ZEXPORT unzOpenCurrentFile(unzFile file); extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
/* Open for reading data the current file in the zipfile. /*
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); extern int ZEXPORT unzLocateFile OF((unzFile file,
/* Open for reading data the current file in the zipfile. const char *szFileName,
int iCaseSensitivity));
/*
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
*/
/* ****************************************** */
/* Ryan supplied functions */
/* unz_file_info contain information about a file in the zipfile */
typedef struct unz_file_pos_s
{
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);
typedef struct unz64_file_pos_s
{
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 unzGetCurrentFileInfo64 OF((unzFile file,
unz_file_info64 *pfile_info,
char *szFileName,
uLong fileNameBufferSize,
void *extraField,
uLong extraFieldBufferSize,
char *szComment,
uLong commentBufferSize));
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 */
/***************************************************************************/
/* 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 password is a crypting password
If there is no error, the return value is UNZ_OK.
*/
return UNZ_OK if no error */ 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 unzOpenCurrentFile2(unzFile file, int *method, int *level, int raw); extern int ZEXPORT unzOpenCurrentFile3 OF((unzFile file,
/* Same as unzOpenCurrentFile, but open for read raw the file (not uncompress) int* method,
if raw==1 *method will receive method of compression, *level will receive level of compression 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
*/
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); extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
/* Same as unzOpenCurrentFile, but takes extra parameter password for encrypted files */ /*
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(unzFile file, voidp buf, uint32_t len); extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
/* Read bytes from the current file (opened by unzOpenCurrentFile) voidp buf,
unsigned len));
/*
Read bytes from the current file (opened by unzOpenCurrentFile)
buf contain buffer where data must be copied buf contain buffer where data must be copied
len the size of buf. len the size of buf.
return the number of byte copied if somes bytes are copied return the number of byte copied if somes bytes are copied
return 0 if the end of file was reached 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) */ 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, extern z_off_t ZEXPORT unztell OF((unzFile file));
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 extern ZPOS64_T ZEXPORT unztell64 OF((unzFile file));
filename if != NULL, the file name string will be copied in filename /*
filename_size is the size of the filename buffer Give the current position in uncompressed data
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); extern int ZEXPORT unzeof OF((unzFile file));
/* Read extra field from the current file (opened by unzOpenCurrentFile) /*
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 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) 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, 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 */ if buf!=NULL, len is the size of the buffer, the extra header is copied in
buf.
extern int ZEXPORT unzCloseCurrentFile(unzFile file); the return value is the number of bytes copied in buf, or (if <0)
/* Close the file in zip opened with unzOpenCurrentFile the error code
*/
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 */
typedef struct unz_file_pos_s
{
uint32_t pos_in_zip_directory; /* offset in zip file directory */
uint32_t 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);
typedef struct unz64_file_pos_s
{
uint64_t pos_in_zip_directory; /* offset in zip file directory */
uint64_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 int32_t ZEXPORT unzGetOffset(unzFile file);
extern int64_t ZEXPORT unzGetOffset64(unzFile file);
/* Get the current file offset */ /* Get the current file offset */
extern ZPOS64_T ZEXPORT unzGetOffset64 (unzFile file);
extern uLong ZEXPORT unzGetOffset (unzFile file);
extern int ZEXPORT unzSetOffset(unzFile file, uint32_t pos);
extern int ZEXPORT unzSetOffset64(unzFile file, uint64_t pos);
/* Set the current file offset */ /* Set the current file offset */
extern int ZEXPORT unzSetOffset64 (unzFile file, ZPOS64_T pos);
extern int ZEXPORT unzSetOffset (unzFile file, uLong pos);
extern int32_t ZEXPORT unzTell(unzFile file);
extern int64_t ZEXPORT unzTell64(unzFile file);
/* return current position in uncompressed data */
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 unzEndOfFile(unzFile file);
/* return 1 if the end of file was reached, 0 elsewhere */
/***************************************************************************/
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#endif /* _UNZ_H */ #endif /* _unz64_H */