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- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #ifndef NOUNCRYPT
- #define NOUNCRYPT
- #endif
- #include "zlib.h"
- #include "unzip.h"
- #include "ioapi_mem.h"
- #ifdef STDC
- # include <stddef.h>
- # include <string.h>
- # include <stdlib.h>
- #endif
- #ifdef NO_ERRNO_H
- extern int errno;
- #else
- # include <errno.h>
- #endif
- namespace cocos2d {
- #ifndef local
- # define local static
- #endif
- #ifndef CASESENSITIVITYDEFAULT_NO
- # if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
- # define CASESENSITIVITYDEFAULT_NO
- # endif
- #endif
- #ifndef UNZ_BUFSIZE
- #define UNZ_BUFSIZE (16384)
- #endif
- #ifndef UNZ_MAXFILENAMEINZIP
- #define UNZ_MAXFILENAMEINZIP (256)
- #endif
- #ifndef ALLOC
- # define ALLOC(size) (malloc(size))
- #endif
- #ifndef TRYFREE
- # define TRYFREE(p) {if (p) free(p);}
- #endif
- #define SIZECENTRALDIRITEM (0x2e)
- #define SIZEZIPLOCALHEADER (0x1e)
- const char unz_copyright[] =
- " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
- typedef struct unz_file_info64_internal_s
- {
- ZPOS64_T offset_curfile;
- } unz_file_info64_internal;
- typedef struct
- {
- char *read_buffer;
- z_stream stream;
- #ifdef HAVE_BZIP2
- bz_stream bstream;
- #endif
- ZPOS64_T pos_in_zipfile;
- uLong stream_initialised;
- ZPOS64_T offset_local_extrafield;
- uInt size_local_extrafield;
- ZPOS64_T pos_local_extrafield;
- ZPOS64_T total_out_64;
- uLong crc32;
- uLong crc32_wait;
- ZPOS64_T rest_read_compressed;
- ZPOS64_T rest_read_uncompressed;
- zlib_filefunc64_32_def z_filefunc;
- voidpf filestream;
- uLong compression_method;
- ZPOS64_T byte_before_the_zipfile;
- int raw;
- } file_in_zip64_read_info_s;
- typedef struct
- {
- zlib_filefunc64_32_def z_filefunc;
- int is64bitOpenFunction;
- voidpf filestream;
- unz_global_info64 gi;
- ZPOS64_T byte_before_the_zipfile;
- ZPOS64_T num_file;
- ZPOS64_T pos_in_central_dir;
- ZPOS64_T current_file_ok;
- ZPOS64_T central_pos;
- ZPOS64_T size_central_dir;
- ZPOS64_T offset_central_dir;
- unz_file_info64 cur_file_info;
- unz_file_info64_internal cur_file_info_internal;
- file_in_zip64_read_info_s* pfile_in_zip_read;
- int encrypted;
- int isZip64;
- # ifndef NOUNCRYPT
- unsigned long keys[3];
- const unsigned long* pcrc_32_tab;
- # endif
- } unz64_s;
- #ifndef NOUNCRYPT
- #include "crypt.h"
- #endif
- 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)
- {
- unsigned char c;
- int err = (int)ZREAD64(*pzlib_filefunc_def,filestream,&c,1);
- if (err==1)
- {
- *pi = (int)c;
- return UNZ_OK;
- }
- else
- {
- if (ZERROR64(*pzlib_filefunc_def,filestream))
- return UNZ_ERRNO;
- else
- return UNZ_EOF;
- }
- }
- 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)
- {
- uLong x ;
- int i = 0;
- int err;
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (uLong)i;
- if (err==UNZ_OK)
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x |= ((uLong)i)<<8;
- if (err==UNZ_OK)
- *pX = x;
- else
- *pX = 0;
- return err;
- }
- 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)
- {
- uLong x ;
- int i = 0;
- int err;
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (uLong)i;
- 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
- *pX = 0;
- return err;
- }
- 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)
- {
- ZPOS64_T x ;
- int i = 0;
- int err;
- err = unz64local_getByte(pzlib_filefunc_def,filestream,&i);
- x = (ZPOS64_T)i;
- 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
- *pX = 0;
- return err;
- }
- local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2)
- {
- 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 (c1<c2)
- return -1;
- if (c1>c2)
- return 1;
- }
- }
- #ifdef CASESENSITIVITYDEFAULT_NO
- #define CASESENSITIVITYDEFAULTVALUE 2
- #else
- #define CASESENSITIVITYDEFAULTVALUE 1
- #endif
- #ifndef STRCMPCASENOSENTIVEFUNCTION
- #define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
- #endif
- 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
- 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;
- ZPOS64_T uPosFound=0;
- 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 (uBackRead<uMaxBack)
- {
- uLong uReadSize;
- ZPOS64_T uReadPos ;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- 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))==0x05) && ((*(buf+i+3))==0x06))
- {
- uPosFound = uReadPos+i;
- break;
- }
- if (uPosFound!=0)
- break;
- }
- TRYFREE(buf);
- return uPosFound;
- }
- 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)
- {
- unsigned char* buf;
- ZPOS64_T uSizeFile;
- ZPOS64_T uBackRead;
- ZPOS64_T uMaxBack=0xffff;
- 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 (uBackRead<uMaxBack)
- {
- uLong uReadSize;
- ZPOS64_T uReadPos;
- int i;
- if (uBackRead+BUFREADCOMMENT>uMaxBack)
- 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+i;
- break;
- }
- if (uPosFound!=0)
- break;
- }
- TRYFREE(buf);
- if (uPosFound == 0)
- return 0;
-
- if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return 0;
-
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
-
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
- if (uL != 0)
- return 0;
-
- if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK)
- return 0;
-
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
- if (uL != 1)
- return 0;
-
- if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return 0;
-
- if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK)
- return 0;
- if (uL != 0x06064b50)
- return 0;
- return relativeOffset;
- }
- local unzFile unzOpenInternal (const void *path,
- zlib_filefunc64_32_def* pzlib_filefunc64_32_def,
- int is64bitOpenFunction)
- {
- unz64_s us;
- unz64_s *s;
- ZPOS64_T central_pos;
- uLong uL;
- uLong number_disk;
- uLong number_disk_with_CD;
- ZPOS64_T number_entry_CD;
- int err=UNZ_OK;
- if (unz_copyright[0]!=' ')
- return NULL;
- us.z_filefunc.zseek32_file = NULL;
- us.z_filefunc.ztell32_file = 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)
- return NULL;
- central_pos = unz64local_SearchCentralDir64(&us.z_filefunc,us.filestream);
- if (central_pos)
- {
- uLong uS;
- ZPOS64_T uL64;
- us.isZip64 = 1;
- if (ZSEEK64(us.z_filefunc, us.filestream,
- central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- 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;
-
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
- err=UNZ_ERRNO;
- us.gi.size_comment = 0;
- }
- else
- {
- central_pos = unz64local_SearchCentralDir(&us.z_filefunc,us.filestream);
- if (central_pos==0)
- err=UNZ_ERRNO;
- us.isZip64 = 0;
- if (ZSEEK64(us.z_filefunc, us.filestream,
- central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
- err=UNZ_ERRNO;
-
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
- err=UNZ_ERRNO;
-
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
- us.gi.number_entry = uL;
-
- 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;
-
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
- us.size_central_dir = uL;
-
- if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
- err=UNZ_ERRNO;
- us.offset_central_dir = uL;
-
- if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
- err=UNZ_ERRNO;
- }
- if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
- (err==UNZ_OK))
- err=UNZ_BADZIPFILE;
- if (err!=UNZ_OK)
- {
- ZCLOSE64(us.z_filefunc, us.filestream);
- return NULL;
- }
- 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=us;
- unzGoToFirstFile((unzFile)s);
- }
- return (unzFile)s;
- }
- 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, 0);
- }
- else
- return unzOpenInternal(path, NULL, 0);
- }
- unzFile ZEXPORT unzOpen2_64 (const void *path,
- zlib_filefunc64_def* pzlib_filefunc_def)
- {
- if (pzlib_filefunc_def != NULL)
- {
- zlib_filefunc64_32_def zlib_filefunc64_32_def_fill;
- 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, 1);
- }
- else
- return unzOpenInternal(path, NULL, 1);
- }
- unzFile ZEXPORT unzOpen (const char *path)
- {
- return unzOpenInternal(path, NULL, 0);
- }
- unzFile ZEXPORT unzOpen64 (const void *path)
- {
- return unzOpenInternal(path, NULL, 1);
- }
- unzFile ZEXPORT unzOpenBuffer (const void* buffer, uLong size)
- {
- char path[48] = {0};
- zlib_filefunc64_32_def memory_file;
- sprintf(path, "%llx %lx", (unsigned long long)buffer, (unsigned long)size);
- fill_memory_filefunc64_32(&memory_file);
- return unzOpenInternal(path, &memory_file, 0);
- }
-
- int ZEXPORT unzClose (unzFile file)
- {
- unz64_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- if (s->pfile_in_zip_read!=NULL)
- unzCloseCurrentFile(file);
- ZCLOSE64(s->z_filefunc, s->filestream);
- TRYFREE(s);
- return UNZ_OK;
- }
- int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info)
- {
- unz64_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- *pglobal_info=s->gi;
- return UNZ_OK;
- }
- int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32)
- {
- unz64_s* s;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
-
- pglobal_info32->number_entry = (uLong)s->gi.number_entry;
- pglobal_info32->size_comment = s->gi.size_comment;
- return UNZ_OK;
- }
- local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm)
- {
- ZPOS64_T uDate;
- uDate = (ZPOS64_T)(ulDosDate>>16);
- ptm->tm_mday = (uInt)(uDate&0x1f) ;
- ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;
- ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
- ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);
- ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ;
- ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ;
- }
- 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;
- unz_file_info64 file_info;
- unz_file_info64_internal file_info_internal;
- int err=UNZ_OK;
- uLong uMagic;
- long lSeek=0;
- uLong uL;
- if (file==NULL)
- return UNZ_PARAMERROR;
- 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 (err==UNZ_OK)
- {
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
- err=UNZ_ERRNO;
- else if (uMagic!=0x02014b50)
- err=UNZ_BADZIPFILE;
- }
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
- err=UNZ_ERRNO;
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
- err=UNZ_ERRNO;
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
- err=UNZ_ERRNO;
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
- err=UNZ_ERRNO;
- 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;
-
- 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))
- {
- uLong uSizeRead ;
- if (file_info.size_filename<fileNameBufferSize)
- {
- *(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;
- }
-
- if ((err==UNZ_OK) && (extraField!=NULL))
- {
- ZPOS64_T uSizeRead ;
- if (file_info.size_file_extra<extraFieldBufferSize)
- uSizeRead = file_info.size_file_extra;
- else
- uSizeRead = extraFieldBufferSize;
- if (lSeek!=0)
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
- lSeek=0;
- else
- 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;
- 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;
-
- lSeek -= file_info.size_file_extra;
- if (lSeek!=0)
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,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;
-
- if (headerId == 0x0001)
- {
- uLong uL2;
- if (file_info.uncompressed_size == (ZPOS64_T)(unsigned long)-1)
- {
- if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
- err=UNZ_ERRNO;
- }
- if (file_info.compressed_size == (ZPOS64_T)(unsigned long)-1)
- {
- if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
- err=UNZ_ERRNO;
- }
- if (file_info_internal.offset_curfile == (ZPOS64_T)(unsigned long)-1)
- {
-
- if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
- err=UNZ_ERRNO;
- }
- if(file_info.disk_num_start == (unsigned long)-1)
- {
-
- if (unz64local_getLong(&s->z_filefunc, s->filestream, &uL2) != UNZ_OK)
- err=UNZ_ERRNO;
- }
- }
- else
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,dataSize,ZLIB_FILEFUNC_SEEK_CUR)!=0)
- err=UNZ_ERRNO;
- }
- acc += 2 + 2 + dataSize;
- }
- }
- if ((err==UNZ_OK) && (szComment!=NULL))
- {
- uLong uSizeRead ;
- if (file_info.size_file_comment<commentBufferSize)
- {
- *(szComment+file_info.size_file_comment)='\0';
- uSizeRead = file_info.size_file_comment;
- }
- else
- uSizeRead = commentBufferSize;
- if (lSeek!=0)
- {
- if (ZSEEK64(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==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;
-
- }
-
-
- 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;
- }
- 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);
- }
- 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;
- err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL,
- szFileName,fileNameBufferSize,
- extraField,extraFieldBufferSize,
- szComment,commentBufferSize);
- if (err==UNZ_OK)
- {
- 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->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;
- pfile_info->size_file_comment = file_info64.size_file_comment;
- 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->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;
- }
- int ZEXPORT unzGoToFirstFile64 (unzFile file,
- unz_file_info64 *pfile_info,
- char *szFileName,
- uLong fileNameBufferSize)
- {
- 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,
- szFileName,fileNameBufferSize,NULL,0,NULL,0);
- s->current_file_ok = (err == UNZ_OK);
- if (pfile_info)
- *pfile_info = s->cur_file_info;
- return err;
- }
- int ZEXPORT unzGoToFirstFile (unzFile file)
- {
- return unzGoToFirstFile64(file, NULL, NULL, 0);
- }
- int ZEXPORT unzGoToNextFile64 (unzFile file,
- unz_file_info64 *pfile_info,
- char *szFileName,
- uLong fileNameBufferSize)
- {
- 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)
- 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,
- szFileName,fileNameBufferSize,NULL,0,NULL,0);
- s->current_file_ok = (err == UNZ_OK);
- if (pfile_info)
- *pfile_info = s->cur_file_info;
- return err;
- }
- int ZEXPORT unzGoToNextFile (unzFile file)
- {
- return unzGoToNextFile64(file, NULL, NULL, 0);
- }
- int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity)
- {
- unz64_s* s;
- int err;
-
- 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;
-
- 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);
- }
- }
-
- 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;
- }
- 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;
- }
- 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;
- }
- int ZEXPORT unzGoToFilePos64(unzFile file, const unz64_file_pos* file_pos)
- {
- unz64_s* s;
- int err;
- if (file==NULL || file_pos==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
-
- s->pos_in_central_dir = file_pos->pos_in_zip_directory;
- s->num_file = file_pos->num_of_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;
- }
- 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);
- }
- 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;
- *psize_local_extrafield = 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 (unz64local_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
- err=UNZ_ERRNO;
- else if (uMagic!=0x04034b50)
- err=UNZ_BADZIPFILE;
- }
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
- if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
- err=UNZ_ERRNO;
- 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) && (s->cur_file_info.compression_method!=0) &&
- (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
- (s->cur_file_info.compression_method!=Z_DEFLATED))
- err=UNZ_BADZIPFILE;
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
- err=UNZ_ERRNO;
- else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0))
- err=UNZ_BADZIPFILE;
- if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
- 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;
- }
- int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method,
- int* level, int raw, const char* password)
- {
- 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;
- uInt size_local_extrafield;
- # ifndef NOUNCRYPT
- char source[12];
- # else
- if (password != NULL)
- return UNZ_PARAMERROR;
- # endif
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- if (!s->current_file_ok)
- return UNZ_PARAMERROR;
- if (s->pfile_in_zip_read != NULL)
- unzCloseCurrentFile(file);
- 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)
- return UNZ_INTERNALERROR;
- 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;
- 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;
- if (method!=NULL)
- *method = (int)s->cur_file_info.compression_method;
- if (level!=NULL)
- {
- *level = 6;
- switch (s->cur_file_info.flag & 0x06)
- {
- case 6 : *level = 1; break;
- case 4 : *level = 2; break;
- case 2 : *level = 9; break;
- }
- }
- if ((s->cur_file_info.compression_method!=0) &&
- (s->cur_file_info.compression_method!=Z_BZIP2ED) &&
- (s->cur_file_info.compression_method!=Z_DEFLATED)) {
-
- }
- 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->stream.total_out = 0;
- if ((s->cur_file_info.compression_method==Z_BZIP2ED) && (!raw))
- {
- #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->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;
- }
- #else
- pfile_in_zip_read_info->raw=1;
- #endif
- }
- 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;
- 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);
- return err;
- }
-
- }
- 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
- 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,
- SEEK_SET)!=0)
- return UNZ_INTERNALERROR;
- 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->pos_in_zipfile+=12;
- s->encrypted=1;
- }
- # endif
- return UNZ_OK;
- }
- int ZEXPORT unzOpenCurrentFile (unzFile file)
- {
- return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
- }
- int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password)
- {
- return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
- }
- int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw)
- {
- return unzOpenCurrentFile3(file, method, level, raw, NULL);
- }
- ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file)
- {
- unz64_s* s;
- file_in_zip64_read_info_s* pfile_in_zip_read_info;
- s=(unz64_s*)file;
- if (file==NULL)
- return 0;
- pfile_in_zip_read_info=s->pfile_in_zip_read;
- if (pfile_in_zip_read_info==NULL)
- return 0;
- return pfile_in_zip_read_info->pos_in_zipfile +
- pfile_in_zip_read_info->byte_before_the_zipfile;
- }
- 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;
- 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)
- return 0;
- pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
- pfile_in_zip_read_info->stream.avail_out = (uInt)len;
- 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 ((pfile_in_zip_read_info->stream.avail_in==0) &&
- (pfile_in_zip_read_info->rest_read_compressed>0))
- {
- uInt uReadThis = UNZ_BUFSIZE;
- if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
- uReadThis = (uInt)pfile_in_zip_read_info->rest_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;
- # ifndef NOUNCRYPT
- if(s->encrypted)
- {
- uInt i;
- for(i=0;i<uReadThis;i++)
- pfile_in_zip_read_info->read_buffer[i] =
- zdecode(s->keys,s->pcrc_32_tab,
- pfile_in_zip_read_info->read_buffer[i]);
- }
- # endif
- pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
- 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 ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
- {
- uInt uDoCopy,i ;
- if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
- (pfile_in_zip_read_info->rest_read_compressed == 0))
- return (iRead==0) ? UNZ_EOF : iRead;
- 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
- uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
- for (i=0;i<uDoCopy;i++)
- *(pfile_in_zip_read_info->stream.next_out+i) =
- *(pfile_in_zip_read_info->stream.next_in+i);
- pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uDoCopy;
- 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 (pfile_in_zip_read_info->compression_method==Z_BZIP2ED)
- {
- #ifdef HAVE_BZIP2
- uLong uTotalOutBefore,uTotalOutAfter;
- const Bytef *bufBefore;
- uLong uOutThis;
- 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;
- uTotalOutBefore = pfile_in_zip_read_info->bstream.total_out_lo32;
- bufBefore = (const Bytef *)pfile_in_zip_read_info->bstream.next_out;
- err=BZ2_bzDecompress(&pfile_in_zip_read_info->bstream);
- uTotalOutAfter = pfile_in_zip_read_info->bstream.total_out_lo32;
- uOutThis = uTotalOutAfter-uTotalOutBefore;
- pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
- 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);
- 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;
- if (err==BZ_STREAM_END)
- return (iRead==0) ? UNZ_EOF : iRead;
- if (err!=BZ_OK)
- break;
- #endif
- }
- else
- {
- ZPOS64_T uTotalOutBefore,uTotalOutAfter;
- const Bytef *bufBefore;
- ZPOS64_T uOutThis;
- int flush=Z_SYNC_FLUSH;
- uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
- bufBefore = pfile_in_zip_read_info->stream.next_out;
-
- err=inflate(&pfile_in_zip_read_info->stream,flush);
- if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
- err = Z_DATA_ERROR;
- uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
- uOutThis = uTotalOutAfter-uTotalOutBefore;
- pfile_in_zip_read_info->total_out_64 = pfile_in_zip_read_info->total_out_64 + uOutThis;
- 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);
- if (err==Z_STREAM_END)
- return (iRead==0) ? UNZ_EOF : iRead;
- if (err!=Z_OK)
- break;
- }
- }
- if (err==Z_OK)
- return iRead;
- return err;
- }
- z_off_t ZEXPORT unztell (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;
- return (z_off_t)pfile_in_zip_read_info->stream.total_out;
- }
- 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;
- }
- 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;
- }
- 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 = (uInt)size_to_read;
- else
- read_now = (uInt)len ;
- if (read_now==0)
- return 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(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;
- }
- int ZEXPORT unzCloseCurrentFile (unzFile file)
- {
- int err=UNZ_OK;
- 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) &&
- (!pfile_in_zip_read_info->raw))
- {
- 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)
- inflateEnd(&pfile_in_zip_read_info->stream);
- #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;
- return err;
- }
- int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf)
- {
- unz64_s* s;
- uLong uReadThis ;
- if (file==NULL)
- return (int)UNZ_PARAMERROR;
- s=(unz64_s*)file;
- uReadThis = uSizeBuf;
- if (uReadThis>s->gi.size_comment)
- uReadThis = s->gi.size_comment;
- if (ZSEEK64(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
- return UNZ_ERRNO;
- if (uReadThis>0)
- {
- *szComment='\0';
- if (ZREAD64(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
- return UNZ_ERRNO;
- }
- if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
- *(szComment+s->gi.size_comment)='\0';
- return (int)uReadThis;
- }
- ZPOS64_T ZEXPORT unzGetOffset64(unzFile file)
- {
- unz64_s* s;
- if (file==NULL)
- return 0;
- s=(unz64_s*)file;
- if (!s->current_file_ok)
- 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;
- }
- uLong ZEXPORT unzGetOffset (unzFile file)
- {
- ZPOS64_T offset64;
- if (file==NULL)
- return 0;
- offset64 = unzGetOffset64(file);
- return (uLong)offset64;
- }
- int ZEXPORT unzSetOffset64(unzFile file, ZPOS64_T pos)
- {
- unz64_s* s;
- int err;
- if (file==NULL)
- return UNZ_PARAMERROR;
- s=(unz64_s*)file;
- s->pos_in_central_dir = pos;
- s->num_file = s->gi.number_entry;
- 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;
- }
- int ZEXPORT unzSetOffset (unzFile file, uLong pos)
- {
- return unzSetOffset64(file,pos);
- }
- }
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