diff options
Diffstat (limited to 'libs/zlib/src/unzip.c')
| -rw-r--r-- | libs/zlib/src/unzip.c | 3274 |
1 files changed, 1609 insertions, 1665 deletions
diff --git a/libs/zlib/src/unzip.c b/libs/zlib/src/unzip.c index f259a48457..0e99c2fb5d 100644 --- a/libs/zlib/src/unzip.c +++ b/libs/zlib/src/unzip.c @@ -63,13 +63,12 @@ */ - #include <stdio.h> #include <stdlib.h> #include <string.h> #ifndef NOUNCRYPT - #define NOUNCRYPT +#define NOUNCRYPT #endif #include "zlib.h" @@ -81,7 +80,7 @@ # include <stdlib.h> #endif #ifdef NO_ERRNO_H - extern int errno; +extern int errno; #else # include <errno.h> #endif @@ -120,43 +119,43 @@ const char unz_copyright[] = - " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; +" unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; /* unz_file_info_interntal contain internal info about a file in zipfile*/ typedef struct unz_file_info64_internal_s { - ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */ + ZPOS64_T offset_curfile;/* relative offset of local header 8 bytes */ } unz_file_info64_internal; /* file_in_zip_read_info_s contain internal information about a file in zipfile, - when reading and decompress it */ + when reading and decompress it */ typedef struct { - char *read_buffer; /* internal buffer for compressed data */ - z_stream stream; /* zLib stream structure for inflate */ - -#ifdef HAVE_BZIP2 - bz_stream bstream; /* bzLib stream structure for bziped */ -#endif - - ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/ - uLong stream_initialised; /* flag set if stream structure is initialised*/ - - ZPOS64_T offset_local_extrafield;/* offset of the local extra field */ - uInt size_local_extrafield;/* size of the local extra field */ - ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/ - ZPOS64_T total_out_64; - - uLong crc32; /* crc32 of all data uncompressed */ - uLong crc32_wait; /* crc32 we must obtain after decompress all */ - ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */ - ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/ - zlib_filefunc64_32_def z_filefunc; - voidpf filestream; /* io structore of the zipfile */ - uLong compression_method; /* compression method (0==store) */ - ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ - int raw; + char *read_buffer; /* internal buffer for compressed data */ + z_stream stream; /* zLib stream structure for inflate */ + + #ifdef HAVE_BZIP2 + bz_stream bstream; /* bzLib stream structure for bziped */ + #endif + + ZPOS64_T pos_in_zipfile; /* position in byte on the zipfile, for fseek*/ + uLong stream_initialised; /* flag set if stream structure is initialised*/ + + ZPOS64_T offset_local_extrafield;/* offset of the local extra field */ + uInt size_local_extrafield;/* size of the local extra field */ + ZPOS64_T pos_local_extrafield; /* position in the local extra field in read*/ + ZPOS64_T total_out_64; + + uLong crc32; /* crc32 of all data uncompressed */ + uLong crc32_wait; /* crc32 we must obtain after decompress all */ + ZPOS64_T rest_read_compressed; /* number of byte to be decompressed */ + ZPOS64_T rest_read_uncompressed;/*number of byte to be obtained after decomp*/ + zlib_filefunc64_32_def z_filefunc; + voidpf filestream; /* io structore of the zipfile */ + uLong compression_method; /* compression method (0==store) */ + ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + int raw; } file_in_zip64_read_info_s; @@ -164,32 +163,32 @@ typedef struct */ typedef struct { - zlib_filefunc64_32_def z_filefunc; - int is64bitOpenFunction; - voidpf filestream; /* io structore of the zipfile */ - unz_global_info64 gi; /* public global information */ - ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ - ZPOS64_T num_file; /* number of the current file in the zipfile*/ - ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/ - ZPOS64_T current_file_ok; /* flag about the usability of the current file*/ - ZPOS64_T central_pos; /* position of the beginning of the central dir*/ - - ZPOS64_T size_central_dir; /* size of the central directory */ - ZPOS64_T offset_central_dir; /* offset of start of central directory with - respect to the starting disk number */ - - unz_file_info64 cur_file_info; /* public info about the current file in zip*/ - unz_file_info64_internal cur_file_info_internal; /* private info about it*/ - file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current - file if we are decompressing it */ - int encrypted; - - int isZip64; - -# ifndef NOUNCRYPT - unsigned long keys[3]; /* keys defining the pseudo-random sequence */ - const z_crc_t* pcrc_32_tab; -# endif + zlib_filefunc64_32_def z_filefunc; + int is64bitOpenFunction; + voidpf filestream; /* io structore of the zipfile */ + unz_global_info64 gi; /* public global information */ + ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ + ZPOS64_T num_file; /* number of the current file in the zipfile*/ + ZPOS64_T pos_in_central_dir; /* pos of the current file in the central dir*/ + ZPOS64_T current_file_ok; /* flag about the usability of the current file*/ + ZPOS64_T central_pos; /* position of the beginning of the central dir*/ + + ZPOS64_T size_central_dir; /* size of the central directory */ + ZPOS64_T offset_central_dir; /* offset of start of central directory with + respect to the starting disk number */ + + unz_file_info64 cur_file_info; /* public info about the current file in zip*/ + unz_file_info64_internal cur_file_info_internal; /* private info about it*/ + file_in_zip64_read_info_s* pfile_in_zip_read; /* structure about the current + file if we are decompressing it */ + int encrypted; + + int isZip64; + + # ifndef NOUNCRYPT + unsigned long keys[3]; /* keys defining the pseudo-random sequence */ + const z_crc_t* pcrc_32_tab; + # endif } unz64_s; @@ -198,173 +197,170 @@ typedef struct #endif /* =========================================================================== - Read a byte from a gz_stream; update next_in and avail_in. Return EOF - for end of file. - IN assertion: the stream s has been sucessfully opened for reading. + Read a byte from a gz_stream; update next_in and avail_in. Return EOF + for end of file. + IN assertion: the stream s has been sucessfully opened for reading. */ local int unz64local_getByte OF(( - const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - int *pi)); + 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; - } + 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; + } } /* =========================================================================== - Reads a long in LSB order from the given gz_stream. Sets + Reads a long in LSB order from the given gz_stream. Sets */ local int unz64local_getShort OF(( - const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream, - uLong *pX)); + 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) +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; + 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)); + 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) +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; + 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)); + 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) +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; + 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; } /* My own strcmpi / strcasecmp */ -local int strcmpcasenosensitive_internal (const char* fileName1, const char* fileName2) +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; - } + 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; + } } @@ -379,26 +375,26 @@ local int strcmpcasenosensitive_internal (const char* fileName1, const char* fil #endif /* - Compare two filename (fileName1,fileName2). - If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp) - If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi - or strcasecmp) - If iCaseSenisivity = 0, case sensitivity is default of your operating system - (like 1 on Unix, 2 on Windows) + 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 default of your operating system + (like 1 on Unix, 2 on Windows) */ -extern int ZEXPORT unzStringFileNameCompare (const char* fileName1, - const char* fileName2, - int iCaseSensitivity) +extern int ZEXPORT unzStringFileNameCompare(const char* fileName1, + const char* fileName2, + int iCaseSensitivity) { - if (iCaseSensitivity==0) - iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE; + if (iCaseSensitivity == 0) + iCaseSensitivity = CASESENSITIVITYDEFAULTVALUE; - if (iCaseSensitivity==1) - return strcmp(fileName1,fileName2); + if (iCaseSensitivity == 1) + return strcmp(fileName1, fileName2); - return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2); + return STRCMPCASENOSENTIVEFUNCTION(fileName1, fileName2); } #ifndef BUFREADCOMMENT @@ -407,417 +403,407 @@ extern int ZEXPORT unzStringFileNameCompare (const char* fileName1, /* Locate the Central directory of a zipfile (at the end, just before - the global comment) + the global comment) */ local ZPOS64_T unz64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); local ZPOS64_T unz64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) { - unsigned char* buf; - ZPOS64_T uSizeFile; - ZPOS64_T uBackRead; - ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ - ZPOS64_T uPosFound=0; - - if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) - return 0; - - - 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; + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack = 0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound = 0; + + if (ZSEEK64(*pzlib_filefunc_def, filestream, 0, ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + 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; } /* Locate the Central directory 64 of a zipfile (at the end, just before - the global comment) + the global comment) */ local ZPOS64_T unz64local_SearchCentralDir64 OF(( - const zlib_filefunc64_32_def* pzlib_filefunc_def, - voidpf filestream)); + 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) + voidpf filestream) { - unsigned char* buf; - ZPOS64_T uSizeFile; - ZPOS64_T uBackRead; - ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */ - ZPOS64_T uPosFound=0; - uLong uL; - ZPOS64_T relativeOffset; - - if (ZSEEK64(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) - return 0; - - - uSizeFile = ZTELL64(*pzlib_filefunc_def,filestream); - - if (uMaxBack>uSizeFile) - uMaxBack = uSizeFile; - - buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); - if (buf==NULL) - return 0; - - uBackRead = 4; - while (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; - - /* Zip64 end of central directory locator */ - if (ZSEEK64(*pzlib_filefunc_def,filestream, uPosFound,ZLIB_FILEFUNC_SEEK_SET)!=0) - return 0; - - /* the signature, already checked */ - if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) - return 0; - - /* number of the disk with the start of the zip64 end of central directory */ - if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) - return 0; - if (uL != 0) - return 0; - - /* relative offset of the zip64 end of central directory record */ - if (unz64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=UNZ_OK) - return 0; - - /* total number of disks */ - if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) - return 0; - if (uL != 1) - return 0; - - /* Goto end of central directory record */ - if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) - return 0; - - /* the signature */ - if (unz64local_getLong(pzlib_filefunc_def,filestream,&uL)!=UNZ_OK) - return 0; - - if (uL != 0x06064b50) - return 0; - - return relativeOffset; + unsigned char* buf; + ZPOS64_T uSizeFile; + ZPOS64_T uBackRead; + ZPOS64_T uMaxBack = 0xffff; /* maximum size of global comment */ + ZPOS64_T uPosFound = 0; + uLong uL; + ZPOS64_T relativeOffset; + + if (ZSEEK64(*pzlib_filefunc_def, filestream, 0, ZLIB_FILEFUNC_SEEK_END) != 0) + return 0; + + + uSizeFile = ZTELL64(*pzlib_filefunc_def, filestream); + + if (uMaxBack > uSizeFile) + uMaxBack = uSizeFile; + + buf = (unsigned char*)ALLOC(BUFREADCOMMENT + 4); + if (buf == NULL) + return 0; + + uBackRead = 4; + while (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; + + /* Zip64 end of central directory locator */ + if (ZSEEK64(*pzlib_filefunc_def, filestream, uPosFound, ZLIB_FILEFUNC_SEEK_SET) != 0) + return 0; + + /* the signature, already checked */ + if (unz64local_getLong(pzlib_filefunc_def, filestream, &uL) != UNZ_OK) + return 0; + + /* number of the disk with the start of the zip64 end of central directory */ + if (unz64local_getLong(pzlib_filefunc_def, filestream, &uL) != UNZ_OK) + return 0; + if (uL != 0) + return 0; + + /* relative offset of the zip64 end of central directory record */ + if (unz64local_getLong64(pzlib_filefunc_def, filestream, &relativeOffset) != UNZ_OK) + return 0; + + /* total number of disks */ + if (unz64local_getLong(pzlib_filefunc_def, filestream, &uL) != UNZ_OK) + return 0; + if (uL != 1) + return 0; + + /* Goto end of central directory record */ + if (ZSEEK64(*pzlib_filefunc_def, filestream, relativeOffset, ZLIB_FILEFUNC_SEEK_SET) != 0) + return 0; + + /* the signature */ + if (unz64local_getLong(pzlib_filefunc_def, filestream, &uL) != UNZ_OK) + return 0; + + if (uL != 0x06064b50) + return 0; + + return relativeOffset; } /* Open a Zip file. path contain the full pathname (by example, - on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer - "zlib/zlib114.zip". - If the zipfile cannot be opened (file doesn't exist or in not valid), the - return value is NULL. - Else, the return value is a unzFile Handle, usable with other function - of this unzip package. + on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer + "zlib/zlib114.zip". + If the zipfile cannot be opened (file doesn't exist or in not valid), the + return value is NULL. + Else, the return value is a unzFile Handle, usable with other function + of this unzip package. */ -local unzFile unzOpenInternal (const void *path, - zlib_filefunc64_32_def* pzlib_filefunc64_32_def, - int is64bitOpenFunction) +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; /* number of the current dist, used for - spaning ZIP, unsupported, always 0*/ - uLong number_disk_with_CD; /* number the the disk with central dir, used - for spaning ZIP, unsupported, always 0*/ - ZPOS64_T number_entry_CD; /* total number of entries in - the central dir - (same than number_entry on nospan) */ - - int err=UNZ_OK; - - if (unz_copyright[0]!=' ') - return NULL; - - us.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; - - /* the signature, already checked */ - if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) - err=UNZ_ERRNO; - - /* size of zip64 end of central directory record */ - if (unz64local_getLong64(&us.z_filefunc, us.filestream,&uL64)!=UNZ_OK) - err=UNZ_ERRNO; - - /* version made by */ - if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) - err=UNZ_ERRNO; - - /* version needed to extract */ - if (unz64local_getShort(&us.z_filefunc, us.filestream,&uS)!=UNZ_OK) - err=UNZ_ERRNO; - - /* number of this disk */ - if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) - err=UNZ_ERRNO; - - /* number of the disk with the start of the central directory */ - if (unz64local_getLong(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) - err=UNZ_ERRNO; - - /* total number of entries in the central directory on this disk */ - if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK) - err=UNZ_ERRNO; - - /* total number of entries in the central directory */ - if (unz64local_getLong64(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK) - err=UNZ_ERRNO; - - if ((number_entry_CD!=us.gi.number_entry) || - (number_disk_with_CD!=0) || - (number_disk!=0)) - err=UNZ_BADZIPFILE; - - /* size of the central directory */ - if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK) - err=UNZ_ERRNO; - - /* offset of start of central directory with respect to the - starting disk number */ - if (unz64local_getLong64(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK) - err=UNZ_ERRNO; - - us.gi.size_comment = 0; - } - else - { - 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; - - /* the signature, already checked */ - if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) - err=UNZ_ERRNO; - - /* number of this disk */ - if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK) - err=UNZ_ERRNO; - - /* number of the disk with the start of the central directory */ - if (unz64local_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK) - err=UNZ_ERRNO; - - /* total number of entries in the central dir on this disk */ - if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) - err=UNZ_ERRNO; - us.gi.number_entry = uL; - - /* total number of entries in the central dir */ - if (unz64local_getShort(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) - err=UNZ_ERRNO; - number_entry_CD = uL; - - if ((number_entry_CD!=us.gi.number_entry) || - (number_disk_with_CD!=0) || - (number_disk!=0)) - err=UNZ_BADZIPFILE; - - /* size of the central directory */ - if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) - err=UNZ_ERRNO; - us.size_central_dir = uL; - - /* offset of start of central directory with respect to the - starting disk number */ - if (unz64local_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK) - err=UNZ_ERRNO; - us.offset_central_dir = uL; - - /* zipfile comment length */ - if (unz64local_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK) - err=UNZ_ERRNO; - } - - if ((central_pos<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; + unz64_s us; + unz64_s *s; + ZPOS64_T central_pos; + uLong uL; + + uLong number_disk; /* number of the current dist, used for + spaning ZIP, unsupported, always 0*/ + uLong number_disk_with_CD; /* number the the disk with central dir, used + for spaning ZIP, unsupported, always 0*/ + ZPOS64_T number_entry_CD; /* total number of entries in + the central dir + (same than number_entry on nospan) */ + + int err = UNZ_OK; + + if (unz_copyright[0] != ' ') + return NULL; + + us.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; + + /* the signature, already checked */ + if (unz64local_getLong(&us.z_filefunc, us.filestream, &uL) != UNZ_OK) + err = UNZ_ERRNO; + + /* size of zip64 end of central directory record */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream, &uL64) != UNZ_OK) + err = UNZ_ERRNO; + + /* version made by */ + if (unz64local_getShort(&us.z_filefunc, us.filestream, &uS) != UNZ_OK) + err = UNZ_ERRNO; + + /* version needed to extract */ + if (unz64local_getShort(&us.z_filefunc, us.filestream, &uS) != UNZ_OK) + err = UNZ_ERRNO; + + /* number of this disk */ + if (unz64local_getLong(&us.z_filefunc, us.filestream, &number_disk) != UNZ_OK) + err = UNZ_ERRNO; + + /* number of the disk with the start of the central directory */ + if (unz64local_getLong(&us.z_filefunc, us.filestream, &number_disk_with_CD) != UNZ_OK) + err = UNZ_ERRNO; + + /* total number of entries in the central directory on this disk */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream, &us.gi.number_entry) != UNZ_OK) + err = UNZ_ERRNO; + + /* total number of entries in the central directory */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream, &number_entry_CD) != UNZ_OK) + err = UNZ_ERRNO; + + if ((number_entry_CD != us.gi.number_entry) || + (number_disk_with_CD != 0) || + (number_disk != 0)) + err = UNZ_BADZIPFILE; + + /* size of the central directory */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream, &us.size_central_dir) != UNZ_OK) + err = UNZ_ERRNO; + + /* offset of start of central directory with respect to the + starting disk number */ + if (unz64local_getLong64(&us.z_filefunc, us.filestream, &us.offset_central_dir) != UNZ_OK) + err = UNZ_ERRNO; + + us.gi.size_comment = 0; + } + else { + 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; + + /* the signature, already checked */ + if (unz64local_getLong(&us.z_filefunc, us.filestream, &uL) != UNZ_OK) + err = UNZ_ERRNO; + + /* number of this disk */ + if (unz64local_getShort(&us.z_filefunc, us.filestream, &number_disk) != UNZ_OK) + err = UNZ_ERRNO; + + /* number of the disk with the start of the central directory */ + if (unz64local_getShort(&us.z_filefunc, us.filestream, &number_disk_with_CD) != UNZ_OK) + err = UNZ_ERRNO; + + /* total number of entries in the central dir on this disk */ + if (unz64local_getShort(&us.z_filefunc, us.filestream, &uL) != UNZ_OK) + err = UNZ_ERRNO; + us.gi.number_entry = uL; + + /* total number of entries in the central dir */ + if (unz64local_getShort(&us.z_filefunc, us.filestream, &uL) != UNZ_OK) + err = UNZ_ERRNO; + number_entry_CD = uL; + + if ((number_entry_CD != us.gi.number_entry) || + (number_disk_with_CD != 0) || + (number_disk != 0)) + err = UNZ_BADZIPFILE; + + /* size of the central directory */ + if (unz64local_getLong(&us.z_filefunc, us.filestream, &uL) != UNZ_OK) + err = UNZ_ERRNO; + us.size_central_dir = uL; + + /* offset of start of central directory with respect to the + starting disk number */ + if (unz64local_getLong(&us.z_filefunc, us.filestream, &uL) != UNZ_OK) + err = UNZ_ERRNO; + us.offset_central_dir = uL; + + /* zipfile comment length */ + if (unz64local_getShort(&us.z_filefunc, us.filestream, &us.gi.size_comment) != UNZ_OK) + err = UNZ_ERRNO; + } + + if ((central_pos < 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; } -extern unzFile ZEXPORT unzOpen2 (const char *path, - zlib_filefunc_def* pzlib_filefunc32_def) +extern unzFile ZEXPORT unzOpen2(const char *path, + zlib_filefunc_def* pzlib_filefunc32_def) { - if (pzlib_filefunc32_def != NULL) - { - zlib_filefunc64_32_def zlib_filefunc64_32_def_fill; - fill_zlib_filefunc64_32_def_from_filefunc32(&zlib_filefunc64_32_def_fill,pzlib_filefunc32_def); - return unzOpenInternal(path, &zlib_filefunc64_32_def_fill, 0); - } - else - return unzOpenInternal(path, NULL, 0); + 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); } -extern unzFile ZEXPORT unzOpen2_64 (const void *path, - zlib_filefunc64_def* pzlib_filefunc_def) +extern unzFile ZEXPORT unzOpen2_64(const void *path, + zlib_filefunc64_def* pzlib_filefunc_def) { - if (pzlib_filefunc_def != NULL) - { - 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); + 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); } -extern unzFile ZEXPORT unzOpen (const char *path) +extern unzFile ZEXPORT unzOpen(const char *path) { - return unzOpenInternal(path, NULL, 0); + return unzOpenInternal(path, NULL, 0); } -extern unzFile ZEXPORT unzOpen64 (const void *path) +extern unzFile ZEXPORT unzOpen64(const void *path) { - return unzOpenInternal(path, NULL, 1); + return unzOpenInternal(path, NULL, 1); } /* 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. + these files MUST be closed with unzCloseCurrentFile before call unzClose. return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzClose (unzFile file) +extern int ZEXPORT unzClose(unzFile file) { - unz64_s* s; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz64_s*)file; + unz64_s* s; + if (file == NULL) + return UNZ_PARAMERROR; + s = (unz64_s*)file; - if (s->pfile_in_zip_read!=NULL) - unzCloseCurrentFile(file); + if (s->pfile_in_zip_read != NULL) + unzCloseCurrentFile(file); - ZCLOSE64(s->z_filefunc, s->filestream); - TRYFREE(s); - return UNZ_OK; + ZCLOSE64(s->z_filefunc, s->filestream); + TRYFREE(s); + return UNZ_OK; } @@ -825,293 +811,276 @@ extern int ZEXPORT unzClose (unzFile file) Write info about the ZipFile in the *pglobal_info structure. No preparation of the structure is needed return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetGlobalInfo64 (unzFile file, unz_global_info64* pglobal_info) +extern 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; + unz64_s* s; + if (file == NULL) + return UNZ_PARAMERROR; + s = (unz64_s*)file; + *pglobal_info = s->gi; + return UNZ_OK; } -extern int ZEXPORT unzGetGlobalInfo (unzFile file, unz_global_info* pglobal_info32) +extern int ZEXPORT unzGetGlobalInfo(unzFile file, unz_global_info* pglobal_info32) { - unz64_s* s; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz64_s*)file; - /* to do : check if number_entry is not truncated */ - pglobal_info32->number_entry = (uLong)s->gi.number_entry; - pglobal_info32->size_comment = s->gi.size_comment; - return UNZ_OK; + unz64_s* s; + if (file == NULL) + return UNZ_PARAMERROR; + s = (unz64_s*)file; + /* to do : check if number_entry is not truncated */ + pglobal_info32->number_entry = (uLong)s->gi.number_entry; + pglobal_info32->size_comment = s->gi.size_comment; + return UNZ_OK; } /* - Translate date/time from Dos format to tm_unz (readable more easilty) + Translate date/time from Dos format to tm_unz (readable more easilty) */ -local void unz64local_DosDateToTmuDate (ZPOS64_T ulDosDate, tm_unz* ptm) +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)) ; + 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)); } /* Get Info about the current file in the zipfile, with internal only info */ local int unz64local_GetCurrentFileInfoInternal OF((unzFile file, - unz_file_info64 *pfile_info, - unz_file_info64_internal - *pfile_info_internal, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize)); - -local int unz64local_GetCurrentFileInfoInternal (unzFile file, - unz_file_info64 *pfile_info, - unz_file_info64_internal - *pfile_info_internal, - char *szFileName, - uLong fileNameBufferSize, - void *extraField, - uLong extraFieldBufferSize, - char *szComment, - uLong commentBufferSize) + 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; - - - /* we check the magic */ - 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; - - // relative offset of local header - if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != UNZ_OK) - err=UNZ_ERRNO; - file_info_internal.offset_curfile = uL; - - lSeek+=file_info.size_filename; - if ((err==UNZ_OK) && (szFileName!=NULL)) - { - 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; - } - - // Read extrafield - 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; - - // since lSeek now points to after the extra field we need to move back - 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; - - /* ZIP64 extra fields */ - if (headerId == 0x0001) - { - uLong uL; - - if(file_info.uncompressed_size == MAXU32) - { - if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK) - err=UNZ_ERRNO; - } - - if(file_info.compressed_size == MAXU32) - { - if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK) - err=UNZ_ERRNO; - } - - if(file_info_internal.offset_curfile == MAXU32) - { - /* Relative Header offset */ - if (unz64local_getLong64(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK) - err=UNZ_ERRNO; - } - - if(file_info.disk_num_start == MAXU32) - { - /* Disk Start Number */ - if (unz64local_getLong(&s->z_filefunc, s->filestream,&uL) != 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) - lSeek=0; - else - err=UNZ_ERRNO; - } - - if ((file_info.size_file_comment>0) && (commentBufferSize>0)) - if (ZREAD64(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead) - err=UNZ_ERRNO; - lSeek+=file_info.size_file_comment - uSizeRead; - } - else - lSeek+=file_info.size_file_comment; - - - 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; + 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; + + + /* we check the magic */ + 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; + + // relative offset of local header + if (unz64local_getLong(&s->z_filefunc, s->filestream, &uL) != UNZ_OK) + err = UNZ_ERRNO; + file_info_internal.offset_curfile = uL; + + lSeek += file_info.size_filename; + if ((err == UNZ_OK) && (szFileName != NULL)) { + 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; + } + + // Read extrafield + 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; + + // since lSeek now points to after the extra field we need to move back + 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; + + /* ZIP64 extra fields */ + if (headerId == 0x0001) { + uLong uL2; + + if (file_info.uncompressed_size == MAXU32) { + if (unz64local_getLong64(&s->z_filefunc, s->filestream, &file_info.uncompressed_size) != UNZ_OK) + err = UNZ_ERRNO; + } + + if (file_info.compressed_size == MAXU32) { + if (unz64local_getLong64(&s->z_filefunc, s->filestream, &file_info.compressed_size) != UNZ_OK) + err = UNZ_ERRNO; + } + + if (file_info_internal.offset_curfile == MAXU32) { + /* Relative Header offset */ + if (unz64local_getLong64(&s->z_filefunc, s->filestream, &file_info_internal.offset_curfile) != UNZ_OK) + err = UNZ_ERRNO; + } + + if (file_info.disk_num_start == MAXU32) { + /* Disk Start Number */ + if (unz64local_getLong(&s->z_filefunc, s->filestream, &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) + lSeek = 0; + else + err = UNZ_ERRNO; + } + + if ((file_info.size_file_comment>0) && (commentBufferSize > 0)) + if (ZREAD64(s->z_filefunc, s->filestream, szComment, uSizeRead) != uSizeRead) + err = UNZ_ERRNO; + lSeek += file_info.size_file_comment - uSizeRead; + } + else + lSeek += file_info.size_file_comment; + + + 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; } @@ -1121,74 +1090,73 @@ local int unz64local_GetCurrentFileInfoInternal (unzFile file, No preparation of the structure is needed return UNZ_OK if there is no problem. */ -extern int ZEXPORT unzGetCurrentFileInfo64 (unzFile file, - unz_file_info64 * pfile_info, - char * szFileName, uLong fileNameBufferSize, - void *extraField, uLong extraFieldBufferSize, - char* szComment, uLong commentBufferSize) +extern int ZEXPORT unzGetCurrentFileInfo64(unzFile file, + unz_file_info64 * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) { - return unz64local_GetCurrentFileInfoInternal(file,pfile_info,NULL, - szFileName,fileNameBufferSize, - extraField,extraFieldBufferSize, - szComment,commentBufferSize); + return unz64local_GetCurrentFileInfoInternal(file, pfile_info, NULL, + szFileName, fileNameBufferSize, + extraField, extraFieldBufferSize, + szComment, commentBufferSize); } -extern int ZEXPORT unzGetCurrentFileInfo (unzFile file, - unz_file_info * pfile_info, - char * szFileName, uLong fileNameBufferSize, - void *extraField, uLong extraFieldBufferSize, - char* szComment, uLong commentBufferSize) +extern int ZEXPORT unzGetCurrentFileInfo(unzFile file, + unz_file_info * pfile_info, + char * szFileName, uLong fileNameBufferSize, + void *extraField, uLong extraFieldBufferSize, + char* szComment, uLong commentBufferSize) { - int err; - unz_file_info64 file_info64; - err = unz64local_GetCurrentFileInfoInternal(file,&file_info64,NULL, - szFileName,fileNameBufferSize, - extraField,extraFieldBufferSize, - szComment,commentBufferSize); - if ((err==UNZ_OK) && (pfile_info != NULL)) - { - pfile_info->version = file_info64.version; - pfile_info->version_needed = file_info64.version_needed; - pfile_info->flag = file_info64.flag; - pfile_info->compression_method = file_info64.compression_method; - pfile_info->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 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 != NULL)) { + pfile_info->version = file_info64.version; + pfile_info->version_needed = file_info64.version_needed; + pfile_info->flag = file_info64.flag; + pfile_info->compression_method = file_info64.compression_method; + pfile_info->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; } /* Set the current file of the zipfile to the first file. return UNZ_OK if there is no problem */ -extern int ZEXPORT unzGoToFirstFile (unzFile file) +extern int ZEXPORT unzGoToFirstFile(unzFile file) { - int err=UNZ_OK; - unz64_s* s; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz64_s*)file; - s->pos_in_central_dir=s->offset_central_dir; - s->num_file=0; - err=unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, - &s->cur_file_info_internal, - NULL,0,NULL,0,NULL,0); - s->current_file_ok = (err == UNZ_OK); - return err; + int err = UNZ_OK; + unz64_s* s; + if (file == NULL) + return UNZ_PARAMERROR; + s = (unz64_s*)file; + s->pos_in_central_dir = s->offset_central_dir; + s->num_file = 0; + err = unz64local_GetCurrentFileInfoInternal(file, &s->cur_file_info, + &s->cur_file_info_internal, + NULL, 0, NULL, 0, NULL, 0); + s->current_file_ok = (err == UNZ_OK); + return err; } /* @@ -1196,28 +1164,28 @@ extern int ZEXPORT unzGoToFirstFile (unzFile file) return UNZ_OK if there is no problem return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest. */ -extern int ZEXPORT unzGoToNextFile (unzFile file) +extern int ZEXPORT unzGoToNextFile(unzFile file) { - unz64_s* s; - int err; - - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz64_s*)file; - if (!s->current_file_ok) - return UNZ_END_OF_LIST_OF_FILE; - if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */ - if (s->num_file+1==s->gi.number_entry) - return UNZ_END_OF_LIST_OF_FILE; - - s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + - s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ; - s->num_file++; - err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, - &s->cur_file_info_internal, - NULL,0,NULL,0,NULL,0); - s->current_file_ok = (err == UNZ_OK); - return err; + unz64_s* s; + int err; + + if (file == NULL) + return UNZ_PARAMERROR; + s = (unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */ + if (s->num_file + 1 == s->gi.number_entry) + return UNZ_END_OF_LIST_OF_FILE; + + s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename + + s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment; + s->num_file++; + err = unz64local_GetCurrentFileInfoInternal(file, &s->cur_file_info, + &s->cur_file_info_internal, + NULL, 0, NULL, 0, NULL, 0); + s->current_file_ok = (err == UNZ_OK); + return err; } @@ -1229,61 +1197,59 @@ extern int ZEXPORT unzGoToNextFile (unzFile file) UNZ_OK if the file is found. It becomes the current file. UNZ_END_OF_LIST_OF_FILE if the file is not found */ -extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCaseSensitivity) +extern int ZEXPORT unzLocateFile(unzFile file, const char *szFileName, int iCaseSensitivity) { - unz64_s* s; - int err; - - /* We remember the 'current' position in the file so that we can jump - * back there if we fail. - */ - unz_file_info64 cur_file_infoSaved; - unz_file_info64_internal cur_file_info_internalSaved; - ZPOS64_T num_fileSaved; - ZPOS64_T pos_in_central_dirSaved; - - - if (file==NULL) - return UNZ_PARAMERROR; - - if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP) - return UNZ_PARAMERROR; - - s=(unz64_s*)file; - if (!s->current_file_ok) - return UNZ_END_OF_LIST_OF_FILE; - - /* Save the current state */ - num_fileSaved = s->num_file; - pos_in_central_dirSaved = s->pos_in_central_dir; - cur_file_infoSaved = s->cur_file_info; - cur_file_info_internalSaved = s->cur_file_info_internal; - - err = unzGoToFirstFile(file); - - while (err == UNZ_OK) - { - char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1]; - err = unzGetCurrentFileInfo64(file,NULL, - szCurrentFileName,sizeof(szCurrentFileName)-1, - NULL,0,NULL,0); - if (err == UNZ_OK) - { - if (unzStringFileNameCompare(szCurrentFileName, - szFileName,iCaseSensitivity)==0) - return UNZ_OK; - err = unzGoToNextFile(file); - } - } - - /* We failed, so restore the state of the 'current file' to where we - * were. - */ - s->num_file = num_fileSaved ; - s->pos_in_central_dir = pos_in_central_dirSaved ; - s->cur_file_info = cur_file_infoSaved; - s->cur_file_info_internal = cur_file_info_internalSaved; - return err; + unz64_s* s; + int err; + + /* We remember the 'current' position in the file so that we can jump + * back there if we fail. + */ + unz_file_info64 cur_file_infoSaved; + unz_file_info64_internal cur_file_info_internalSaved; + ZPOS64_T num_fileSaved; + ZPOS64_T pos_in_central_dirSaved; + + + if (file == NULL) + return UNZ_PARAMERROR; + + if (strlen(szFileName) >= UNZ_MAXFILENAMEINZIP) + return UNZ_PARAMERROR; + + s = (unz64_s*)file; + if (!s->current_file_ok) + return UNZ_END_OF_LIST_OF_FILE; + + /* Save the current state */ + num_fileSaved = s->num_file; + pos_in_central_dirSaved = s->pos_in_central_dir; + cur_file_infoSaved = s->cur_file_info; + cur_file_info_internalSaved = s->cur_file_info_internal; + + err = unzGoToFirstFile(file); + + while (err == UNZ_OK) { + char szCurrentFileName[UNZ_MAXFILENAMEINZIP + 1]; + err = unzGetCurrentFileInfo64(file, NULL, + szCurrentFileName, sizeof(szCurrentFileName) - 1, + NULL, 0, NULL, 0); + if (err == UNZ_OK) { + if (unzStringFileNameCompare(szCurrentFileName, + szFileName, iCaseSensitivity) == 0) + return UNZ_OK; + err = unzGoToNextFile(file); + } + } + + /* We failed, so restore the state of the 'current file' to where we + * were. + */ + s->num_file = num_fileSaved; + s->pos_in_central_dir = pos_in_central_dirSaved; + s->cur_file_info = cur_file_infoSaved; + s->cur_file_info_internal = cur_file_info_internalSaved; + return err; } @@ -1300,74 +1266,73 @@ extern int ZEXPORT unzLocateFile (unzFile file, const char *szFileName, int iCas /* typedef struct unz_file_pos_s { - ZPOS64_T pos_in_zip_directory; // offset in file - ZPOS64_T num_of_file; // # of file + ZPOS64_T pos_in_zip_directory; // offset in file + ZPOS64_T num_of_file; // # of file } unz_file_pos; */ extern int ZEXPORT unzGetFilePos64(unzFile file, unz64_file_pos* file_pos) { - unz64_s* s; + 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; + 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; + file_pos->pos_in_zip_directory = s->pos_in_central_dir; + file_pos->num_of_file = s->num_file; - return UNZ_OK; + return UNZ_OK; } extern int ZEXPORT unzGetFilePos( - unzFile file, - unz_file_pos* file_pos) + 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; + unz64_file_pos file_pos64; + int err = unzGetFilePos64(file, &file_pos64); + if (err == UNZ_OK) { + file_pos->pos_in_zip_directory = (uLong)file_pos64.pos_in_zip_directory; + file_pos->num_of_file = (uLong)file_pos64.num_of_file; + } + return err; } extern int ZEXPORT 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; - - /* jump to the right spot */ - s->pos_in_central_dir = file_pos->pos_in_zip_directory; - s->num_file = file_pos->num_of_file; - - /* set the current file */ - err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, - &s->cur_file_info_internal, - NULL,0,NULL,0,NULL,0); - /* return results */ - s->current_file_ok = (err == UNZ_OK); - return err; + unz64_s* s; + int err; + + if (file == NULL || file_pos == NULL) + return UNZ_PARAMERROR; + s = (unz64_s*)file; + + /* jump to the right spot */ + s->pos_in_central_dir = file_pos->pos_in_zip_directory; + s->num_file = file_pos->num_of_file; + + /* set the current file */ + err = unz64local_GetCurrentFileInfoInternal(file, &s->cur_file_info, + &s->cur_file_info_internal, + NULL, 0, NULL, 0, NULL, 0); + /* return results */ + s->current_file_ok = (err == UNZ_OK); + return err; } extern int ZEXPORT unzGoToFilePos( - unzFile file, - unz_file_pos* file_pos) + unzFile file, + unz_file_pos* file_pos) { - unz64_file_pos file_pos64; - if (file_pos == NULL) - return UNZ_PARAMERROR; + 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); + 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); } /* @@ -1378,295 +1343,286 @@ extern int ZEXPORT unzGoToFilePos( /* Read the local header of the current zipfile Check the coherency of the local header and info in the end of central - directory about this file + directory about this file store in *piSizeVar the size of extra info in local header - (filename and size of extra field data) + (filename and size of extra field data) */ -local int unz64local_CheckCurrentFileCoherencyHeader (unz64_s* s, uInt* piSizeVar, - ZPOS64_T * poffset_local_extrafield, - uInt * psize_local_extrafield) +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; -/* - else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion)) - err=UNZ_BADZIPFILE; -*/ - if (unz64local_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK) - err=UNZ_ERRNO; - - 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) && -/* #ifdef HAVE_BZIP2 */ - (s->cur_file_info.compression_method!=Z_BZIP2ED) && -/* #endif */ - (s->cur_file_info.compression_method!=Z_DEFLATED)) - err=UNZ_BADZIPFILE; - - if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */ - err=UNZ_ERRNO; - - if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */ - err=UNZ_ERRNO; - else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) && ((uFlags & 8)==0)) - err=UNZ_BADZIPFILE; - - if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */ - err=UNZ_ERRNO; - else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) && ((uFlags & 8)==0)) - err=UNZ_BADZIPFILE; - - if (unz64local_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */ - err=UNZ_ERRNO; - else if (uData != 0xFFFFFFFF && (err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) && ((uFlags & 8)==0)) - err=UNZ_BADZIPFILE; - - if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK) - err=UNZ_ERRNO; - else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename)) - err=UNZ_BADZIPFILE; - - *piSizeVar += (uInt)size_filename; - - if (unz64local_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK) - err=UNZ_ERRNO; - *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile + - SIZEZIPLOCALHEADER + size_filename; - *psize_local_extrafield = (uInt)size_extra_field; - - *piSizeVar += (uInt)size_extra_field; - - return err; + 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; + /* + else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion)) + err=UNZ_BADZIPFILE; + */ + if (unz64local_getShort(&s->z_filefunc, s->filestream, &uFlags) != UNZ_OK) + err = UNZ_ERRNO; + + 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) && + /* #ifdef HAVE_BZIP2 */ + (s->cur_file_info.compression_method != Z_BZIP2ED) && + /* #endif */ + (s->cur_file_info.compression_method != Z_DEFLATED)) + err = UNZ_BADZIPFILE; + + if (unz64local_getLong(&s->z_filefunc, s->filestream, &uData) != UNZ_OK) /* date/time */ + err = UNZ_ERRNO; + + if (unz64local_getLong(&s->z_filefunc, s->filestream, &uData) != UNZ_OK) /* crc */ + err = UNZ_ERRNO; + else if ((err == UNZ_OK) && (uData != s->cur_file_info.crc) && ((uFlags & 8) == 0)) + err = UNZ_BADZIPFILE; + + if (unz64local_getLong(&s->z_filefunc, s->filestream, &uData) != UNZ_OK) /* size compr */ + err = UNZ_ERRNO; + else if (uData != 0xFFFFFFFF && (err == UNZ_OK) && (uData != s->cur_file_info.compressed_size) && ((uFlags & 8) == 0)) + err = UNZ_BADZIPFILE; + + if (unz64local_getLong(&s->z_filefunc, s->filestream, &uData) != UNZ_OK) /* size uncompr */ + err = UNZ_ERRNO; + else if (uData != 0xFFFFFFFF && (err == UNZ_OK) && (uData != s->cur_file_info.uncompressed_size) && ((uFlags & 8) == 0)) + err = UNZ_BADZIPFILE; + + if (unz64local_getShort(&s->z_filefunc, s->filestream, &size_filename) != UNZ_OK) + err = UNZ_ERRNO; + else if ((err == UNZ_OK) && (size_filename != s->cur_file_info.size_filename)) + err = UNZ_BADZIPFILE; + + *piSizeVar += (uInt)size_filename; + + if (unz64local_getShort(&s->z_filefunc, s->filestream, &size_extra_field) != UNZ_OK) + err = UNZ_ERRNO; + *poffset_local_extrafield = s->cur_file_info_internal.offset_curfile + + SIZEZIPLOCALHEADER + size_filename; + *psize_local_extrafield = (uInt)size_extra_field; + + *piSizeVar += (uInt)size_extra_field; + + return err; } /* Open for reading data the current file in the zipfile. If there is no error and the file is opened, the return value is UNZ_OK. */ -extern int ZEXPORT unzOpenCurrentFile3 (unzFile file, int* method, - int* level, int raw, const char* password) +extern int ZEXPORT unzOpenCurrentFile3(unzFile file, int* method, + int* level, int raw, const char* password) { - int err=UNZ_OK; - uInt iSizeVar; - unz64_s* s; - file_in_zip64_read_info_s* pfile_in_zip_read_info; - ZPOS64_T offset_local_extrafield; /* offset of the local extra field */ - uInt size_local_extrafield; /* size of the local extra field */ -# ifndef NOUNCRYPT - char source[12]; -# else - 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) && -/* #ifdef HAVE_BZIP2 */ - (s->cur_file_info.compression_method!=Z_BZIP2ED) && -/* #endif */ - (s->cur_file_info.compression_method!=Z_DEFLATED)) - - err=UNZ_BADZIPFILE; - - pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc; - pfile_in_zip_read_info->crc32=0; - pfile_in_zip_read_info->total_out_64=0; - pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method; - pfile_in_zip_read_info->filestream=s->filestream; - pfile_in_zip_read_info->z_filefunc=s->z_filefunc; - pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile; - - pfile_in_zip_read_info->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; - } - /* windowBits is passed < 0 to tell that there is no zlib header. - * Note that in this case inflate *requires* an extra "dummy" byte - * after the compressed stream in order to complete decompression and - * return Z_STREAM_END. - * In unzip, i don't wait absolutely Z_STREAM_END because I known the - * size of both compressed and uncompressed data - */ - } - pfile_in_zip_read_info->rest_read_compressed = - s->cur_file_info.compressed_size ; - pfile_in_zip_read_info->rest_read_uncompressed = - s->cur_file_info.uncompressed_size ; - - - pfile_in_zip_read_info->pos_in_zipfile = - s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + - iSizeVar; - - pfile_in_zip_read_info->stream.avail_in = (uInt)0; - - s->pfile_in_zip_read = pfile_in_zip_read_info; - s->encrypted = 0; - -# ifndef NOUNCRYPT - 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 err = UNZ_OK; + uInt iSizeVar; + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + ZPOS64_T offset_local_extrafield; /* offset of the local extra field */ + uInt size_local_extrafield; /* size of the local extra field */ + #ifndef NOUNCRYPT + char source[12]; + #else + 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) && + /* #ifdef HAVE_BZIP2 */ + (s->cur_file_info.compression_method != Z_BZIP2ED) && + /* #endif */ + (s->cur_file_info.compression_method != Z_DEFLATED)) + + err = UNZ_BADZIPFILE; + + pfile_in_zip_read_info->crc32_wait = s->cur_file_info.crc; + pfile_in_zip_read_info->crc32 = 0; + pfile_in_zip_read_info->total_out_64 = 0; + pfile_in_zip_read_info->compression_method = s->cur_file_info.compression_method; + pfile_in_zip_read_info->filestream = s->filestream; + pfile_in_zip_read_info->z_filefunc = s->z_filefunc; + pfile_in_zip_read_info->byte_before_the_zipfile = s->byte_before_the_zipfile; + + pfile_in_zip_read_info->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; + } + /* windowBits is passed < 0 to tell that there is no zlib header. + * Note that in this case inflate *requires* an extra "dummy" byte + * after the compressed stream in order to complete decompression and + * return Z_STREAM_END. + * In unzip, i don't wait absolutely Z_STREAM_END because I known the + * size of both compressed and uncompressed data + */ + } + pfile_in_zip_read_info->rest_read_compressed = + s->cur_file_info.compressed_size; + pfile_in_zip_read_info->rest_read_uncompressed = + s->cur_file_info.uncompressed_size; + + + pfile_in_zip_read_info->pos_in_zipfile = + s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER + + iSizeVar; + + pfile_in_zip_read_info->stream.avail_in = (uInt)0; + + s->pfile_in_zip_read = pfile_in_zip_read_info; + s->encrypted = 0; + + # ifndef NOUNCRYPT + 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; } -extern int ZEXPORT unzOpenCurrentFile (unzFile file) +extern int ZEXPORT unzOpenCurrentFile(unzFile file) { - return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL); + return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL); } -extern int ZEXPORT unzOpenCurrentFilePassword (unzFile file, const char* password) +extern int ZEXPORT unzOpenCurrentFilePassword(unzFile file, const char* password) { - return unzOpenCurrentFile3(file, NULL, NULL, 0, password); + return unzOpenCurrentFile3(file, NULL, NULL, 0, password); } -extern int ZEXPORT unzOpenCurrentFile2 (unzFile file, int* method, int* level, int raw) +extern int ZEXPORT unzOpenCurrentFile2(unzFile file, int* method, int* level, int raw) { - return unzOpenCurrentFile3(file, method, level, raw, NULL); + return unzOpenCurrentFile3(file, method, level, raw, NULL); } /** Addition for GDAL : START */ -extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file) +extern 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; //UNZ_PARAMERROR; - pfile_in_zip_read_info=s->pfile_in_zip_read; - if (pfile_in_zip_read_info==NULL) - return 0; //UNZ_PARAMERROR; - return pfile_in_zip_read_info->pos_in_zipfile + - pfile_in_zip_read_info->byte_before_the_zipfile; + unz64_s *s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + s = (unz64_s*)file; + if (file == NULL) + return 0; //UNZ_PARAMERROR; + pfile_in_zip_read_info = s->pfile_in_zip_read; + if (pfile_in_zip_read_info == NULL) + return 0; //UNZ_PARAMERROR; + return pfile_in_zip_read_info->pos_in_zipfile + + pfile_in_zip_read_info->byte_before_the_zipfile; } /** Addition for GDAL : END */ @@ -1679,268 +1635,258 @@ extern ZPOS64_T ZEXPORT unzGetCurrentFileZStreamPos64( unzFile file) return the number of byte copied if somes bytes are copied return 0 if the end of file was reached return <0 with error code if there is an error - (UNZ_ERRNO for IO error, or zLib error for uncompress error) + (UNZ_ERRNO for IO error, or zLib error for uncompress error) */ -extern int ZEXPORT unzReadCurrentFile (unzFile file, voidp buf, unsigned len) +extern int ZEXPORT unzReadCurrentFile(unzFile file, voidp buf, unsigned len) { - int err=UNZ_OK; - uInt iRead = 0; - unz64_s* s; - file_in_zip64_read_info_s* pfile_in_zip_read_info; - if (file==NULL) - return UNZ_PARAMERROR; - 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 - } // end Z_BZIP2ED - 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; - - /* - if ((pfile_in_zip_read_info->rest_read_uncompressed == - pfile_in_zip_read_info->stream.avail_out) && - (pfile_in_zip_read_info->rest_read_compressed == 0)) - flush = Z_FINISH; - */ - 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; + 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 + } // end Z_BZIP2ED + 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; + + /* + if ((pfile_in_zip_read_info->rest_read_uncompressed == + pfile_in_zip_read_info->stream.avail_out) && + (pfile_in_zip_read_info->rest_read_compressed == 0)) + flush = Z_FINISH; + */ + 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; } - /* Give the current position in uncompressed data */ -extern z_off_t ZEXPORT unztell (unzFile file) +extern 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; + 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 == NULL) + return UNZ_PARAMERROR; - return (z_off_t)pfile_in_zip_read_info->stream.total_out; + return (z_off_t)pfile_in_zip_read_info->stream.total_out; } -extern ZPOS64_T ZEXPORT unztell64 (unzFile file) +extern ZPOS64_T ZEXPORT unztell64(unzFile file) { - unz64_s* s; - file_in_zip64_read_info_s* pfile_in_zip_read_info; - if (file==NULL) - return (ZPOS64_T)-1; - s=(unz64_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; + 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; + if (pfile_in_zip_read_info == NULL) + return (ZPOS64_T)-1; - return pfile_in_zip_read_info->total_out_64; + return pfile_in_zip_read_info->total_out_64; } - /* return 1 if the end of file was reached, 0 elsewhere */ -extern int ZEXPORT unzeof (unzFile file) +extern int ZEXPORT unzeof(unzFile file) { - unz64_s* s; - file_in_zip64_read_info_s* pfile_in_zip_read_info; - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz64_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; - - if (pfile_in_zip_read_info==NULL) - return UNZ_PARAMERROR; - - if (pfile_in_zip_read_info->rest_read_uncompressed == 0) - return 1; - else - return 0; + unz64_s* s; + file_in_zip64_read_info_s* pfile_in_zip_read_info; + if (file == NULL) + return UNZ_PARAMERROR; + s = (unz64_s*)file; + pfile_in_zip_read_info = s->pfile_in_zip_read; + + if (pfile_in_zip_read_info == NULL) + return UNZ_PARAMERROR; + + if (pfile_in_zip_read_info->rest_read_uncompressed == 0) + return 1; + else + return 0; } - - /* Read extra field from the current file (opened by unzOpenCurrentFile) This is the local-header version of the extra field (sometimes, there is @@ -1949,97 +1895,96 @@ more info in the local-header version than in the central-header) if buf==NULL, it return the size of the local extra field that can be read if buf!=NULL, len is the size of the buffer, the extra header is copied in - buf. + buf. the return value is the number of bytes copied in buf, or (if <0) - the error code + the error code */ -extern int ZEXPORT unzGetLocalExtrafield (unzFile file, voidp buf, unsigned len) +extern int ZEXPORT unzGetLocalExtrafield(unzFile file, voidp buf, unsigned len) { - unz64_s* s; - file_in_zip64_read_info_s* pfile_in_zip_read_info; - uInt read_now; - ZPOS64_T size_to_read; - - if (file==NULL) - return UNZ_PARAMERROR; - s=(unz64_s*)file; - pfile_in_zip_read_info=s->pfile_in_zip_read; - - if (pfile_in_zip_read_info==NULL) - return UNZ_PARAMERROR; - - size_to_read = (pfile_in_zip_read_info->size_local_extrafield - - pfile_in_zip_read_info->pos_local_extrafield); - - if (buf==NULL) - return (int)size_to_read; - - if (len>size_to_read) - read_now = (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; + 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; } /* Close the file in zip opened with unzOpenCurrentFile Return UNZ_CRCERROR if all the file was read but the CRC is not good */ -extern int ZEXPORT unzCloseCurrentFile (unzFile file) +extern 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 + 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); + pfile_in_zip_read_info->stream_initialised = 0; + TRYFREE(pfile_in_zip_read_info); - s->pfile_in_zip_read=NULL; + s->pfile_in_zip_read = NULL; - return err; + return err; } @@ -2048,78 +1993,77 @@ extern int ZEXPORT unzCloseCurrentFile (unzFile file) uSizeBuf is the size of the szComment buffer. return the number of byte copied or an error code <0 */ -extern int ZEXPORT unzGetGlobalComment (unzFile file, char * szComment, uLong uSizeBuf) +extern 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; + 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; } /* Additions by RX '2004 */ extern ZPOS64_T ZEXPORT unzGetOffset64(unzFile file) { - unz64_s* s; - - if (file==NULL) - return 0; //UNZ_PARAMERROR; - 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; + unz64_s* s; + + if (file == NULL) + return 0; //UNZ_PARAMERROR; + 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; } -extern uLong ZEXPORT unzGetOffset (unzFile file) +extern uLong ZEXPORT unzGetOffset(unzFile file) { - ZPOS64_T offset64; + ZPOS64_T offset64; - if (file==NULL) - return 0; //UNZ_PARAMERROR; - offset64 = unzGetOffset64(file); - return (uLong)offset64; + if (file == NULL) + return 0; //UNZ_PARAMERROR; + offset64 = unzGetOffset64(file); + return (uLong)offset64; } extern 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; /* hack */ - err = unz64local_GetCurrentFileInfoInternal(file,&s->cur_file_info, - &s->cur_file_info_internal, - NULL,0,NULL,0,NULL,0); - s->current_file_ok = (err == UNZ_OK); - return err; + 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; /* hack */ + err = unz64local_GetCurrentFileInfoInternal(file, &s->cur_file_info, + &s->cur_file_info_internal, + NULL, 0, NULL, 0, NULL, 0); + s->current_file_ok = (err == UNZ_OK); + return err; } -extern int ZEXPORT unzSetOffset (unzFile file, uLong pos) +extern int ZEXPORT unzSetOffset(unzFile file, uLong pos) { - return unzSetOffset64(file,pos); + return unzSetOffset64(file, pos); } |