| /* zip.c -- IO on .zip files using zlib |
| Version 1.1, February 14h, 2010 |
| part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html ) |
| |
| Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html ) |
| |
| Modifications for Zip64 support |
| Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com ) |
| |
| For more info read MiniZip_info.txt |
| |
| Changes |
| Oct-2009 - Mathias Svensson - Remove old C style function prototypes |
| Oct-2009 - Mathias Svensson - Added Zip64 Support when creating new file archives |
| Oct-2009 - Mathias Svensson - Did some code cleanup and refactoring to get better overview of some functions. |
| Oct-2009 - Mathias Svensson - Added zipRemoveExtraInfoBlock to strip extra field data from its ZIP64 data |
| It is used when recreating zip archive with RAW when deleting items from a zip. |
| ZIP64 data is automatically added to items that needs it, and existing ZIP64 data need to be removed. |
| Oct-2009 - Mathias Svensson - Added support for BZIP2 as compression mode (bzip2 lib is required) |
| Jan-2010 - back to unzip and minizip 1.0 name scheme, with compatibility layer |
| |
| */ |
| |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdint.h> |
| #include <time.h> |
| #include "zlib.h" |
| #include "zip.h" |
| |
| #ifdef STDC |
| # include <stddef.h> |
| #endif |
| #ifdef NO_ERRNO_H |
| extern int errno; |
| #else |
| # include <errno.h> |
| #endif |
| |
| |
| #ifndef local |
| # define local static |
| #endif |
| /* compile with -Dlocal if your debugger can't find static symbols */ |
| |
| #ifndef VERSIONMADEBY |
| # define VERSIONMADEBY (0x0) /* platform dependent */ |
| #endif |
| |
| #ifndef Z_BUFSIZE |
| #define Z_BUFSIZE (64*1024) //(16384) |
| #endif |
| |
| #ifndef Z_MAXFILENAMEINZIP |
| #define Z_MAXFILENAMEINZIP (256) |
| #endif |
| |
| #ifndef ALLOC |
| # define ALLOC(size) (malloc(size)) |
| #endif |
| |
| /* |
| #define SIZECENTRALDIRITEM (0x2e) |
| #define SIZEZIPLOCALHEADER (0x1e) |
| */ |
| |
| /* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ |
| |
| |
| // NOT sure that this work on ALL platform |
| #define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32)) |
| |
| #ifndef SEEK_CUR |
| #define SEEK_CUR 1 |
| #endif |
| |
| #ifndef SEEK_END |
| #define SEEK_END 2 |
| #endif |
| |
| #ifndef SEEK_SET |
| #define SEEK_SET 0 |
| #endif |
| |
| #ifndef DEF_MEM_LEVEL |
| #if MAX_MEM_LEVEL >= 8 |
| # define DEF_MEM_LEVEL 8 |
| #else |
| # define DEF_MEM_LEVEL MAX_MEM_LEVEL |
| #endif |
| #endif |
| const char zip_copyright[] =" zip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll"; |
| |
| |
| #define SIZEDATA_INDATABLOCK (4096-(4*4)) |
| |
| #define LOCALHEADERMAGIC (0x04034b50) |
| #define CENTRALHEADERMAGIC (0x02014b50) |
| #define ENDHEADERMAGIC (0x06054b50) |
| #define ZIP64ENDHEADERMAGIC (0x6064b50) |
| #define ZIP64ENDLOCHEADERMAGIC (0x7064b50) |
| |
| #define FLAG_LOCALHEADER_OFFSET (0x06) |
| #define CRC_LOCALHEADER_OFFSET (0x0e) |
| |
| #define SIZECENTRALHEADER (0x2e) /* 46 */ |
| |
| typedef struct linkedlist_datablock_internal_s |
| { |
| struct linkedlist_datablock_internal_s* next_datablock; |
| uLong avail_in_this_block; |
| uLong filled_in_this_block; |
| uLong unused; /* for future use and alignment */ |
| unsigned char data[SIZEDATA_INDATABLOCK]; |
| } linkedlist_datablock_internal; |
| |
| typedef struct linkedlist_data_s |
| { |
| linkedlist_datablock_internal* first_block; |
| linkedlist_datablock_internal* last_block; |
| } linkedlist_data; |
| |
| |
| typedef struct |
| { |
| z_stream stream; /* zLib stream structure for inflate */ |
| #ifdef HAVE_BZIP2 |
| bz_stream bstream; /* bzLib stream structure for bziped */ |
| #endif |
| |
| int stream_initialised; /* 1 is stream is initialised */ |
| uInt pos_in_buffered_data; /* last written byte in buffered_data */ |
| |
| ZPOS64_T pos_local_header; /* offset of the local header of the file |
| currently writing */ |
| char* central_header; /* central header data for the current file */ |
| uLong size_centralExtra; |
| uLong size_centralheader; /* size of the central header for cur file */ |
| uLong size_centralExtraFree; /* Extra bytes allocated to the centralheader but that are not used */ |
| uLong flag; /* flag of the file currently writing */ |
| |
| int method; /* compression method of file currently wr.*/ |
| int raw; /* 1 for directly writing raw data */ |
| Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/ |
| uLong dosDate; |
| uLong crc32; |
| int encrypt; |
| int zip64; /* Add ZIP64 extended information in the extra field */ |
| ZPOS64_T pos_zip64extrainfo; |
| ZPOS64_T totalCompressedData; |
| ZPOS64_T totalUncompressedData; |
| #ifndef NOCRYPT |
| unsigned long keys[3]; /* keys defining the pseudo-random sequence */ |
| const z_crc_t* pcrc_32_tab; |
| unsigned crypt_header_size; |
| #endif |
| } curfile64_info; |
| |
| typedef struct |
| { |
| zlib_filefunc64_32_def z_filefunc; |
| voidpf filestream; /* io structure of the zipfile */ |
| linkedlist_data central_dir;/* datablock with central dir in construction*/ |
| int in_opened_file_inzip; /* 1 if a file in the zip is currently writ.*/ |
| curfile64_info ci; /* info on the file currently writing */ |
| |
| ZPOS64_T begin_pos; /* position of the beginning of the zipfile */ |
| ZPOS64_T add_position_when_writing_offset; |
| ZPOS64_T number_entry; |
| |
| #ifndef NO_ADDFILEINEXISTINGZIP |
| char *globalcomment; |
| #endif |
| |
| } zip64_internal; |
| |
| |
| #ifndef NOCRYPT |
| #define INCLUDECRYPTINGCODE_IFCRYPTALLOWED |
| #include "crypt.h" |
| #endif |
| |
| local linkedlist_datablock_internal* allocate_new_datablock(void) { |
| linkedlist_datablock_internal* ldi; |
| ldi = (linkedlist_datablock_internal*) |
| ALLOC(sizeof(linkedlist_datablock_internal)); |
| if (ldi!=NULL) |
| { |
| ldi->next_datablock = NULL ; |
| ldi->filled_in_this_block = 0 ; |
| ldi->avail_in_this_block = SIZEDATA_INDATABLOCK ; |
| } |
| return ldi; |
| } |
| |
| local void free_datablock(linkedlist_datablock_internal* ldi) { |
| while (ldi!=NULL) |
| { |
| linkedlist_datablock_internal* ldinext = ldi->next_datablock; |
| free(ldi); |
| ldi = ldinext; |
| } |
| } |
| |
| local void init_linkedlist(linkedlist_data* ll) { |
| ll->first_block = ll->last_block = NULL; |
| } |
| |
| local void free_linkedlist(linkedlist_data* ll) { |
| free_datablock(ll->first_block); |
| ll->first_block = ll->last_block = NULL; |
| } |
| |
| |
| local int add_data_in_datablock(linkedlist_data* ll, const void* buf, uLong len) { |
| linkedlist_datablock_internal* ldi; |
| const unsigned char* from_copy; |
| |
| if (ll==NULL) |
| return ZIP_INTERNALERROR; |
| |
| if (ll->last_block == NULL) |
| { |
| ll->first_block = ll->last_block = allocate_new_datablock(); |
| if (ll->first_block == NULL) |
| return ZIP_INTERNALERROR; |
| } |
| |
| ldi = ll->last_block; |
| from_copy = (const unsigned char*)buf; |
| |
| while (len>0) |
| { |
| uInt copy_this; |
| uInt i; |
| unsigned char* to_copy; |
| |
| if (ldi->avail_in_this_block==0) |
| { |
| ldi->next_datablock = allocate_new_datablock(); |
| if (ldi->next_datablock == NULL) |
| return ZIP_INTERNALERROR; |
| ldi = ldi->next_datablock ; |
| ll->last_block = ldi; |
| } |
| |
| if (ldi->avail_in_this_block < len) |
| copy_this = (uInt)ldi->avail_in_this_block; |
| else |
| copy_this = (uInt)len; |
| |
| to_copy = &(ldi->data[ldi->filled_in_this_block]); |
| |
| for (i=0;i<copy_this;i++) |
| *(to_copy+i)=*(from_copy+i); |
| |
| ldi->filled_in_this_block += copy_this; |
| ldi->avail_in_this_block -= copy_this; |
| from_copy += copy_this ; |
| len -= copy_this; |
| } |
| return ZIP_OK; |
| } |
| |
| |
| |
| /****************************************************************************/ |
| |
| #ifndef NO_ADDFILEINEXISTINGZIP |
| /* =========================================================================== |
| Inputs a long in LSB order to the given file |
| nbByte == 1, 2 ,4 or 8 (byte, short or long, ZPOS64_T) |
| */ |
| |
| local int zip64local_putValue(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte) { |
| unsigned char buf[8]; |
| int n; |
| for (n = 0; n < nbByte; n++) |
| { |
| buf[n] = (unsigned char)(x & 0xff); |
| x >>= 8; |
| } |
| if (x != 0) |
| { /* data overflow - hack for ZIP64 (X Roche) */ |
| for (n = 0; n < nbByte; n++) |
| { |
| buf[n] = 0xff; |
| } |
| } |
| |
| if (ZWRITE64(*pzlib_filefunc_def,filestream,buf,(uLong)nbByte)!=(uLong)nbByte) |
| return ZIP_ERRNO; |
| else |
| return ZIP_OK; |
| } |
| |
| local void zip64local_putValue_inmemory (void* dest, ZPOS64_T x, int nbByte) { |
| unsigned char* buf=(unsigned char*)dest; |
| int n; |
| for (n = 0; n < nbByte; n++) { |
| buf[n] = (unsigned char)(x & 0xff); |
| x >>= 8; |
| } |
| |
| if (x != 0) |
| { /* data overflow - hack for ZIP64 */ |
| for (n = 0; n < nbByte; n++) |
| { |
| buf[n] = 0xff; |
| } |
| } |
| } |
| |
| /****************************************************************************/ |
| |
| |
| local uLong zip64local_TmzDateToDosDate(const tm_zip* ptm) { |
| uLong year = (uLong)ptm->tm_year; |
| if (year>=1980) |
| year-=1980; |
| else if (year>=80) |
| year-=80; |
| return |
| (uLong) (((uLong)(ptm->tm_mday) + (32 * (uLong)(ptm->tm_mon+1)) + (512 * year)) << 16) | |
| (((uLong)ptm->tm_sec/2) + (32 * (uLong)ptm->tm_min) + (2048 * (uLong)ptm->tm_hour)); |
| } |
| |
| |
| /****************************************************************************/ |
| |
| local int zip64local_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 ZIP_OK; |
| } |
| else |
| { |
| if (ZERROR64(*pzlib_filefunc_def,filestream)) |
| return ZIP_ERRNO; |
| else |
| return ZIP_EOF; |
| } |
| } |
| |
| |
| /* =========================================================================== |
| Reads a long in LSB order from the given gz_stream. Sets |
| */ |
| local int zip64local_getShort(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) { |
| uLong x ; |
| int i = 0; |
| int err; |
| |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x = (uLong)i; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((uLong)i)<<8; |
| |
| if (err==ZIP_OK) |
| *pX = x; |
| else |
| *pX = 0; |
| return err; |
| } |
| |
| local int zip64local_getLong(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong* pX) { |
| uLong x ; |
| int i = 0; |
| int err; |
| |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x = (uLong)i; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((uLong)i)<<8; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((uLong)i)<<16; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((uLong)i)<<24; |
| |
| if (err==ZIP_OK) |
| *pX = x; |
| else |
| *pX = 0; |
| return err; |
| } |
| |
| |
| local int zip64local_getLong64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX) { |
| ZPOS64_T x; |
| int i = 0; |
| int err; |
| |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x = (ZPOS64_T)i; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((ZPOS64_T)i)<<8; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((ZPOS64_T)i)<<16; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((ZPOS64_T)i)<<24; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((ZPOS64_T)i)<<32; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((ZPOS64_T)i)<<40; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((ZPOS64_T)i)<<48; |
| |
| if (err==ZIP_OK) |
| err = zip64local_getByte(pzlib_filefunc_def,filestream,&i); |
| x += ((ZPOS64_T)i)<<56; |
| |
| if (err==ZIP_OK) |
| *pX = x; |
| else |
| *pX = 0; |
| |
| return err; |
| } |
| |
| #ifndef BUFREADCOMMENT |
| #define BUFREADCOMMENT (0x400) |
| #endif |
| /* |
| Locate the Central directory of a zipfile (at the end, just before |
| the global comment) |
| */ |
| local ZPOS64_T zip64local_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+(unsigned)i; |
| break; |
| } |
| |
| if (uPosFound!=0) |
| break; |
| } |
| free(buf); |
| return uPosFound; |
| } |
| |
| /* |
| Locate the End of Zip64 Central directory locator and from there find the CD of a zipfile (at the end, just before |
| the global comment) |
| */ |
| local ZPOS64_T zip64local_SearchCentralDir64(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; |
| 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;) |
| { |
| // Signature "0x07064b50" Zip64 end of central directory locater |
| if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && ((*(buf+i+2))==0x06) && ((*(buf+i+3))==0x07)) |
| { |
| uPosFound = uReadPos+(unsigned)i; |
| break; |
| } |
| } |
| |
| if (uPosFound!=0) |
| break; |
| } |
| |
| free(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 (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| return 0; |
| |
| /* number of the disk with the start of the zip64 end of central directory */ |
| if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| return 0; |
| if (uL != 0) |
| return 0; |
| |
| /* relative offset of the zip64 end of central directory record */ |
| if (zip64local_getLong64(pzlib_filefunc_def,filestream,&relativeOffset)!=ZIP_OK) |
| return 0; |
| |
| /* total number of disks */ |
| if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| return 0; |
| if (uL != 1) |
| return 0; |
| |
| /* Goto Zip64 end of central directory record */ |
| if (ZSEEK64(*pzlib_filefunc_def,filestream, relativeOffset,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| return 0; |
| |
| /* the signature */ |
| if (zip64local_getLong(pzlib_filefunc_def,filestream,&uL)!=ZIP_OK) |
| return 0; |
| |
| if (uL != 0x06064b50) // signature of 'Zip64 end of central directory' |
| return 0; |
| |
| return relativeOffset; |
| } |
| |
| local int LoadCentralDirectoryRecord(zip64_internal* pziinit) { |
| int err=ZIP_OK; |
| ZPOS64_T byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ |
| |
| ZPOS64_T size_central_dir; /* size of the central directory */ |
| ZPOS64_T offset_central_dir; /* offset of start of central directory */ |
| ZPOS64_T central_pos; |
| uLong uL; |
| |
| uLong number_disk; /* number of the current dist, used for |
| spanning ZIP, unsupported, always 0*/ |
| uLong number_disk_with_CD; /* number the the disk with central dir, used |
| for spanning ZIP, unsupported, always 0*/ |
| ZPOS64_T number_entry; |
| ZPOS64_T number_entry_CD; /* total number of entries in |
| the central dir |
| (same than number_entry on nospan) */ |
| uLong VersionMadeBy; |
| uLong VersionNeeded; |
| uLong size_comment; |
| |
| int hasZIP64Record = 0; |
| |
| // check first if we find a ZIP64 record |
| central_pos = zip64local_SearchCentralDir64(&pziinit->z_filefunc,pziinit->filestream); |
| if(central_pos > 0) |
| { |
| hasZIP64Record = 1; |
| } |
| else if(central_pos == 0) |
| { |
| central_pos = zip64local_SearchCentralDir(&pziinit->z_filefunc,pziinit->filestream); |
| } |
| |
| /* disable to allow appending to empty ZIP archive |
| if (central_pos==0) |
| err=ZIP_ERRNO; |
| */ |
| |
| if(hasZIP64Record) |
| { |
| ZPOS64_T sizeEndOfCentralDirectory; |
| if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) |
| err=ZIP_ERRNO; |
| |
| /* the signature, already checked */ |
| if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* size of zip64 end of central directory record */ |
| if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &sizeEndOfCentralDirectory)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* version made by */ |
| if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionMadeBy)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* version needed to extract */ |
| if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &VersionNeeded)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* number of this disk */ |
| if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* number of the disk with the start of the central directory */ |
| if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* total number of entries in the central directory on this disk */ |
| if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream, &number_entry)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* total number of entries in the central directory */ |
| if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&number_entry_CD)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) |
| err=ZIP_BADZIPFILE; |
| |
| /* size of the central directory */ |
| if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&size_central_dir)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* offset of start of central directory with respect to the |
| starting disk number */ |
| if (zip64local_getLong64(&pziinit->z_filefunc, pziinit->filestream,&offset_central_dir)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| // TODO.. |
| // read the comment from the standard central header. |
| size_comment = 0; |
| } |
| else |
| { |
| // Read End of central Directory info |
| if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| err=ZIP_ERRNO; |
| |
| /* the signature, already checked */ |
| if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream,&uL)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* number of this disk */ |
| if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* number of the disk with the start of the central directory */ |
| if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream,&number_disk_with_CD)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| |
| /* total number of entries in the central dir on this disk */ |
| number_entry = 0; |
| if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| else |
| number_entry = uL; |
| |
| /* total number of entries in the central dir */ |
| number_entry_CD = 0; |
| if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| else |
| number_entry_CD = uL; |
| |
| if ((number_entry_CD!=number_entry) || (number_disk_with_CD!=0) || (number_disk!=0)) |
| err=ZIP_BADZIPFILE; |
| |
| /* size of the central directory */ |
| size_central_dir = 0; |
| if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| else |
| size_central_dir = uL; |
| |
| /* offset of start of central directory with respect to the starting disk number */ |
| offset_central_dir = 0; |
| if (zip64local_getLong(&pziinit->z_filefunc, pziinit->filestream, &uL)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| else |
| offset_central_dir = uL; |
| |
| |
| /* zipfile global comment length */ |
| if (zip64local_getShort(&pziinit->z_filefunc, pziinit->filestream, &size_comment)!=ZIP_OK) |
| err=ZIP_ERRNO; |
| } |
| |
| if ((central_pos<offset_central_dir+size_central_dir) && |
| (err==ZIP_OK)) |
| err=ZIP_BADZIPFILE; |
| |
| if (err!=ZIP_OK) |
| { |
| ZCLOSE64(pziinit->z_filefunc, pziinit->filestream); |
| return ZIP_ERRNO; |
| } |
| |
| if (size_comment>0) |
| { |
| pziinit->globalcomment = (char*)ALLOC(size_comment+1); |
| if (pziinit->globalcomment) |
| { |
| size_comment = ZREAD64(pziinit->z_filefunc, pziinit->filestream, pziinit->globalcomment,size_comment); |
| pziinit->globalcomment[size_comment]=0; |
| } |
| } |
| |
| byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir); |
| pziinit->add_position_when_writing_offset = byte_before_the_zipfile; |
| |
| { |
| ZPOS64_T size_central_dir_to_read = size_central_dir; |
| size_t buf_size = SIZEDATA_INDATABLOCK; |
| void* buf_read = (void*)ALLOC(buf_size); |
| if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir + byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0) |
| err=ZIP_ERRNO; |
| |
| while ((size_central_dir_to_read>0) && (err==ZIP_OK)) |
| { |
| ZPOS64_T read_this = SIZEDATA_INDATABLOCK; |
| if (read_this > size_central_dir_to_read) |
| read_this = size_central_dir_to_read; |
| |
| if (ZREAD64(pziinit->z_filefunc, pziinit->filestream,buf_read,(uLong)read_this) != read_this) |
| err=ZIP_ERRNO; |
| |
| if (err==ZIP_OK) |
| err = add_data_in_datablock(&pziinit->central_dir,buf_read, (uLong)read_this); |
| |
| size_central_dir_to_read-=read_this; |
| } |
| free(buf_read); |
| } |
| pziinit->begin_pos = byte_before_the_zipfile; |
| pziinit->number_entry = number_entry_CD; |
| |
| if (ZSEEK64(pziinit->z_filefunc, pziinit->filestream, offset_central_dir+byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET) != 0) |
| err=ZIP_ERRNO; |
| |
| return err; |
| } |
| |
| |
| #endif /* !NO_ADDFILEINEXISTINGZIP*/ |
| |
| |
| /************************************************************/ |
| extern zipFile ZEXPORT zipOpen3(const void *pathname, int append, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def) { |
| zip64_internal ziinit; |
| zip64_internal* zi; |
| int err=ZIP_OK; |
| |
| ziinit.z_filefunc.zseek32_file = NULL; |
| ziinit.z_filefunc.ztell32_file = NULL; |
| if (pzlib_filefunc64_32_def==NULL) |
| fill_fopen64_filefunc(&ziinit.z_filefunc.zfile_func64); |
| else |
| ziinit.z_filefunc = *pzlib_filefunc64_32_def; |
| |
| ziinit.filestream = ZOPEN64(ziinit.z_filefunc, |
| pathname, |
| (append == APPEND_STATUS_CREATE) ? |
| (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE) : |
| (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING)); |
| |
| if (ziinit.filestream == NULL) |
| return NULL; |
| |
| if (append == APPEND_STATUS_CREATEAFTER) |
| ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END); |
| |
| ziinit.begin_pos = ZTELL64(ziinit.z_filefunc,ziinit.filestream); |
| ziinit.in_opened_file_inzip = 0; |
| ziinit.ci.stream_initialised = 0; |
| ziinit.number_entry = 0; |
| ziinit.add_position_when_writing_offset = 0; |
| init_linkedlist(&(ziinit.central_dir)); |
| |
| |
| |
| zi = (zip64_internal*)ALLOC(sizeof(zip64_internal)); |
| if (zi==NULL) |
| { |
| ZCLOSE64(ziinit.z_filefunc,ziinit.filestream); |
| return NULL; |
| } |
| |
| /* now we add file in a zipfile */ |
| # ifndef NO_ADDFILEINEXISTINGZIP |
| ziinit.globalcomment = NULL; |
| if (append == APPEND_STATUS_ADDINZIP) |
| { |
| // Read and Cache Central Directory Records |
| err = LoadCentralDirectoryRecord(&ziinit); |
| } |
| |
| if (globalcomment) |
| { |
| *globalcomment = ziinit.globalcomment; |
| } |
| # endif /* !NO_ADDFILEINEXISTINGZIP*/ |
| |
| if (err != ZIP_OK) |
| { |
| # ifndef NO_ADDFILEINEXISTINGZIP |
| free(ziinit.globalcomment); |
| # endif /* !NO_ADDFILEINEXISTINGZIP*/ |
| free(zi); |
| return NULL; |
| } |
| else |
| { |
| *zi = ziinit; |
| return (zipFile)zi; |
| } |
| } |
| |
| extern zipFile ZEXPORT zipOpen2(const char *pathname, int append, zipcharpc* globalcomment, 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 zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); |
| } |
| else |
| return zipOpen3(pathname, append, globalcomment, NULL); |
| } |
| |
| extern zipFile ZEXPORT zipOpen2_64(const void *pathname, int append, zipcharpc* globalcomment, 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 zipOpen3(pathname, append, globalcomment, &zlib_filefunc64_32_def_fill); |
| } |
| else |
| return zipOpen3(pathname, append, globalcomment, NULL); |
| } |
| |
| |
| |
| extern zipFile ZEXPORT zipOpen(const char* pathname, int append) { |
| return zipOpen3((const void*)pathname,append,NULL,NULL); |
| } |
| |
| extern zipFile ZEXPORT zipOpen64(const void* pathname, int append) { |
| return zipOpen3(pathname,append,NULL,NULL); |
| } |
| |
| local int Write_LocalFileHeader(zip64_internal* zi, const char* filename, uInt size_extrafield_local, const void* extrafield_local) { |
| /* write the local header */ |
| int err; |
| uInt size_filename = (uInt)strlen(filename); |
| uInt size_extrafield = size_extrafield_local; |
| |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC, 4); |
| |
| if (err==ZIP_OK) |
| { |
| if(zi->ci.zip64) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2);/* version needed to extract */ |
| else |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */ |
| } |
| |
| if (err==ZIP_OK) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2); |
| |
| if (err==ZIP_OK) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2); |
| |
| if (err==ZIP_OK) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4); |
| |
| // CRC / Compressed size / Uncompressed size will be filled in later and rewritten later |
| if (err==ZIP_OK) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */ |
| if (err==ZIP_OK) |
| { |
| if(zi->ci.zip64) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* compressed size, unknown */ |
| else |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */ |
| } |
| if (err==ZIP_OK) |
| { |
| if(zi->ci.zip64) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xFFFFFFFF,4); /* uncompressed size, unknown */ |
| else |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */ |
| } |
| |
| if (err==ZIP_OK) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2); |
| |
| if(zi->ci.zip64) |
| { |
| size_extrafield += 20; |
| } |
| |
| if (err==ZIP_OK) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield,2); |
| |
| if ((err==ZIP_OK) && (size_filename > 0)) |
| { |
| if (ZWRITE64(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename) |
| err = ZIP_ERRNO; |
| } |
| |
| if ((err==ZIP_OK) && (size_extrafield_local > 0)) |
| { |
| if (ZWRITE64(zi->z_filefunc, zi->filestream, extrafield_local, size_extrafield_local) != size_extrafield_local) |
| err = ZIP_ERRNO; |
| } |
| |
| |
| if ((err==ZIP_OK) && (zi->ci.zip64)) |
| { |
| // write the Zip64 extended info |
| short HeaderID = 1; |
| short DataSize = 16; |
| ZPOS64_T CompressedSize = 0; |
| ZPOS64_T UncompressedSize = 0; |
| |
| // Remember position of Zip64 extended info for the local file header. (needed when we update size after done with file) |
| zi->ci.pos_zip64extrainfo = ZTELL64(zi->z_filefunc,zi->filestream); |
| |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)HeaderID,2); |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)DataSize,2); |
| |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)UncompressedSize,8); |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)CompressedSize,8); |
| } |
| |
| return err; |
| } |
| |
| /* |
| NOTE. |
| When writing RAW the ZIP64 extended information in extrafield_local and extrafield_global needs to be stripped |
| before calling this function it can be done with zipRemoveExtraInfoBlock |
| |
| It is not done here because then we need to realloc a new buffer since parameters are 'const' and I want to minimize |
| unnecessary allocations. |
| */ |
| extern int ZEXPORT zipOpenNewFileInZip4_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void* extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level, int raw, |
| int windowBits,int memLevel, int strategy, |
| const char* password, uLong crcForCrypting, |
| uLong versionMadeBy, uLong flagBase, int zip64) { |
| zip64_internal* zi; |
| uInt size_filename; |
| uInt size_comment; |
| uInt i; |
| int err = ZIP_OK; |
| |
| # ifdef NOCRYPT |
| (crcForCrypting); |
| if (password != NULL) |
| return ZIP_PARAMERROR; |
| # endif |
| |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| |
| #ifdef HAVE_BZIP2 |
| if ((method!=0) && (method!=Z_DEFLATED) && (method!=Z_BZIP2ED)) |
| return ZIP_PARAMERROR; |
| #else |
| if ((method!=0) && (method!=Z_DEFLATED)) |
| return ZIP_PARAMERROR; |
| #endif |
| |
| // The filename and comment length must fit in 16 bits. |
| if ((filename!=NULL) && (strlen(filename)>0xffff)) |
| return ZIP_PARAMERROR; |
| if ((comment!=NULL) && (strlen(comment)>0xffff)) |
| return ZIP_PARAMERROR; |
| // The extra field length must fit in 16 bits. If the member also requires |
| // a Zip64 extra block, that will also need to fit within that 16-bit |
| // length, but that will be checked for later. |
| if ((size_extrafield_local>0xffff) || (size_extrafield_global>0xffff)) |
| return ZIP_PARAMERROR; |
| |
| zi = (zip64_internal*)file; |
| |
| if (zi->in_opened_file_inzip == 1) |
| { |
| err = zipCloseFileInZip (file); |
| if (err != ZIP_OK) |
| return err; |
| } |
| |
| if (filename==NULL) |
| filename="-"; |
| |
| if (comment==NULL) |
| size_comment = 0; |
| else |
| size_comment = (uInt)strlen(comment); |
| |
| size_filename = (uInt)strlen(filename); |
| |
| if (zipfi == NULL) |
| zi->ci.dosDate = 0; |
| else |
| { |
| if (zipfi->dosDate != 0) |
| zi->ci.dosDate = zipfi->dosDate; |
| else |
| zi->ci.dosDate = zip64local_TmzDateToDosDate(&zipfi->tmz_date); |
| } |
| |
| zi->ci.flag = flagBase; |
| if ((level==8) || (level==9)) |
| zi->ci.flag |= 2; |
| if (level==2) |
| zi->ci.flag |= 4; |
| if (level==1) |
| zi->ci.flag |= 6; |
| if (password != NULL) |
| zi->ci.flag |= 1; |
| |
| zi->ci.crc32 = 0; |
| zi->ci.method = method; |
| zi->ci.encrypt = 0; |
| zi->ci.stream_initialised = 0; |
| zi->ci.pos_in_buffered_data = 0; |
| zi->ci.raw = raw; |
| zi->ci.pos_local_header = ZTELL64(zi->z_filefunc,zi->filestream); |
| |
| zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + size_extrafield_global + size_comment; |
| zi->ci.size_centralExtraFree = 32; // Extra space we have reserved in case we need to add ZIP64 extra info data |
| |
| zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree); |
| |
| zi->ci.size_centralExtra = size_extrafield_global; |
| zip64local_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4); |
| /* version info */ |
| zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)versionMadeBy,2); |
| zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2); |
| zip64local_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2); |
| zip64local_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2); |
| zip64local_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4); |
| zip64local_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/ |
| zip64local_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/ |
| zip64local_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/ |
| zip64local_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2); |
| zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2); |
| zip64local_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2); |
| zip64local_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/ |
| |
| if (zipfi==NULL) |
| zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2); |
| else |
| zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2); |
| |
| if (zipfi==NULL) |
| zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4); |
| else |
| zip64local_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4); |
| |
| if(zi->ci.pos_local_header >= 0xffffffff) |
| zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)0xffffffff,4); |
| else |
| zip64local_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header - zi->add_position_when_writing_offset,4); |
| |
| for (i=0;i<size_filename;i++) |
| *(zi->ci.central_header+SIZECENTRALHEADER+i) = *(filename+i); |
| |
| for (i=0;i<size_extrafield_global;i++) |
| *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+i) = |
| *(((const char*)extrafield_global)+i); |
| |
| for (i=0;i<size_comment;i++) |
| *(zi->ci.central_header+SIZECENTRALHEADER+size_filename+ |
| size_extrafield_global+i) = *(comment+i); |
| if (zi->ci.central_header == NULL) |
| return ZIP_INTERNALERROR; |
| |
| zi->ci.zip64 = zip64; |
| zi->ci.totalCompressedData = 0; |
| zi->ci.totalUncompressedData = 0; |
| zi->ci.pos_zip64extrainfo = 0; |
| |
| err = Write_LocalFileHeader(zi, filename, size_extrafield_local, extrafield_local); |
| |
| #ifdef HAVE_BZIP2 |
| zi->ci.bstream.avail_in = (uInt)0; |
| zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; |
| zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; |
| zi->ci.bstream.total_in_hi32 = 0; |
| zi->ci.bstream.total_in_lo32 = 0; |
| zi->ci.bstream.total_out_hi32 = 0; |
| zi->ci.bstream.total_out_lo32 = 0; |
| #endif |
| |
| zi->ci.stream.avail_in = (uInt)0; |
| zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; |
| zi->ci.stream.next_out = zi->ci.buffered_data; |
| zi->ci.stream.total_in = 0; |
| zi->ci.stream.total_out = 0; |
| zi->ci.stream.data_type = Z_BINARY; |
| |
| #ifdef HAVE_BZIP2 |
| if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED || zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| #else |
| if ((err==ZIP_OK) && (zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| #endif |
| { |
| if(zi->ci.method == Z_DEFLATED) |
| { |
| zi->ci.stream.zalloc = (alloc_func)0; |
| zi->ci.stream.zfree = (free_func)0; |
| zi->ci.stream.opaque = (voidpf)0; |
| |
| if (windowBits>0) |
| windowBits = -windowBits; |
| |
| err = deflateInit2(&zi->ci.stream, level, Z_DEFLATED, windowBits, memLevel, strategy); |
| |
| if (err==Z_OK) |
| zi->ci.stream_initialised = Z_DEFLATED; |
| } |
| else if(zi->ci.method == Z_BZIP2ED) |
| { |
| #ifdef HAVE_BZIP2 |
| // Init BZip stuff here |
| zi->ci.bstream.bzalloc = 0; |
| zi->ci.bstream.bzfree = 0; |
| zi->ci.bstream.opaque = (voidpf)0; |
| |
| err = BZ2_bzCompressInit(&zi->ci.bstream, level, 0,35); |
| if(err == BZ_OK) |
| zi->ci.stream_initialised = Z_BZIP2ED; |
| #endif |
| } |
| |
| } |
| |
| # ifndef NOCRYPT |
| zi->ci.crypt_header_size = 0; |
| if ((err==Z_OK) && (password != NULL)) |
| { |
| unsigned char bufHead[RAND_HEAD_LEN]; |
| unsigned int sizeHead; |
| zi->ci.encrypt = 1; |
| zi->ci.pcrc_32_tab = get_crc_table(); |
| /*init_keys(password,zi->ci.keys,zi->ci.pcrc_32_tab);*/ |
| |
| sizeHead=crypthead(password,bufHead,RAND_HEAD_LEN,zi->ci.keys,zi->ci.pcrc_32_tab,crcForCrypting); |
| zi->ci.crypt_header_size = sizeHead; |
| |
| if (ZWRITE64(zi->z_filefunc,zi->filestream,bufHead,sizeHead) != sizeHead) |
| err = ZIP_ERRNO; |
| } |
| # endif |
| |
| if (err==Z_OK) |
| zi->in_opened_file_inzip = 1; |
| return err; |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip4(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void* extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level, int raw, |
| int windowBits,int memLevel, int strategy, |
| const char* password, uLong crcForCrypting, |
| uLong versionMadeBy, uLong flagBase) { |
| return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level, raw, |
| windowBits, memLevel, strategy, |
| password, crcForCrypting, versionMadeBy, flagBase, 0); |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip3(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void* extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level, int raw, |
| int windowBits,int memLevel, int strategy, |
| const char* password, uLong crcForCrypting) { |
| return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level, raw, |
| windowBits, memLevel, strategy, |
| password, crcForCrypting, VERSIONMADEBY, 0, 0); |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip3_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void* extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level, int raw, |
| int windowBits,int memLevel, int strategy, |
| const char* password, uLong crcForCrypting, int zip64) { |
| return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level, raw, |
| windowBits, memLevel, strategy, |
| password, crcForCrypting, VERSIONMADEBY, 0, zip64); |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip2(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void* extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level, int raw) { |
| return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level, raw, |
| -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| NULL, 0, VERSIONMADEBY, 0, 0); |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip2_64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void* extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level, int raw, int zip64) { |
| return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level, raw, |
| -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| NULL, 0, VERSIONMADEBY, 0, zip64); |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip64(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void*extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level, int zip64) { |
| return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level, 0, |
| -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| NULL, 0, VERSIONMADEBY, 0, zip64); |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip(zipFile file, const char* filename, const zip_fileinfo* zipfi, |
| const void* extrafield_local, uInt size_extrafield_local, |
| const void*extrafield_global, uInt size_extrafield_global, |
| const char* comment, int method, int level) { |
| return zipOpenNewFileInZip4_64(file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level, 0, |
| -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, |
| NULL, 0, VERSIONMADEBY, 0, 0); |
| } |
| |
| local int zip64FlushWriteBuffer(zip64_internal* zi) { |
| int err=ZIP_OK; |
| |
| if (zi->ci.encrypt != 0) |
| { |
| #ifndef NOCRYPT |
| uInt i; |
| int t; |
| for (i=0;i<zi->ci.pos_in_buffered_data;i++) |
| zi->ci.buffered_data[i] = zencode(zi->ci.keys, zi->ci.pcrc_32_tab, zi->ci.buffered_data[i],t); |
| #endif |
| } |
| |
| if (ZWRITE64(zi->z_filefunc,zi->filestream,zi->ci.buffered_data,zi->ci.pos_in_buffered_data) != zi->ci.pos_in_buffered_data) |
| err = ZIP_ERRNO; |
| |
| zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data; |
| |
| #ifdef HAVE_BZIP2 |
| if(zi->ci.method == Z_BZIP2ED) |
| { |
| zi->ci.totalUncompressedData += zi->ci.bstream.total_in_lo32; |
| zi->ci.bstream.total_in_lo32 = 0; |
| zi->ci.bstream.total_in_hi32 = 0; |
| } |
| else |
| #endif |
| { |
| zi->ci.totalUncompressedData += zi->ci.stream.total_in; |
| zi->ci.stream.total_in = 0; |
| } |
| |
| |
| zi->ci.pos_in_buffered_data = 0; |
| |
| return err; |
| } |
| |
| extern int ZEXPORT zipWriteInFileInZip(zipFile file, const void* buf, unsigned int len) { |
| zip64_internal* zi; |
| int err=ZIP_OK; |
| |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| zi = (zip64_internal*)file; |
| |
| if (zi->in_opened_file_inzip == 0) |
| return ZIP_PARAMERROR; |
| |
| zi->ci.crc32 = crc32(zi->ci.crc32,buf,(uInt)len); |
| |
| #ifdef HAVE_BZIP2 |
| if(zi->ci.method == Z_BZIP2ED && (!zi->ci.raw)) |
| { |
| zi->ci.bstream.next_in = (void*)buf; |
| zi->ci.bstream.avail_in = len; |
| err = BZ_RUN_OK; |
| |
| while ((err==BZ_RUN_OK) && (zi->ci.bstream.avail_in>0)) |
| { |
| if (zi->ci.bstream.avail_out == 0) |
| { |
| if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| err = ZIP_ERRNO; |
| zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; |
| zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; |
| } |
| |
| |
| if(err != BZ_RUN_OK) |
| break; |
| |
| if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| { |
| uLong uTotalOutBefore_lo = zi->ci.bstream.total_out_lo32; |
| // uLong uTotalOutBefore_hi = zi->ci.bstream.total_out_hi32; |
| err=BZ2_bzCompress(&zi->ci.bstream, BZ_RUN); |
| |
| zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore_lo) ; |
| } |
| } |
| |
| if(err == BZ_RUN_OK) |
| err = ZIP_OK; |
| } |
| else |
| #endif |
| { |
| zi->ci.stream.next_in = (Bytef*)(uintptr_t)buf; |
| zi->ci.stream.avail_in = len; |
| |
| while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0)) |
| { |
| if (zi->ci.stream.avail_out == 0) |
| { |
| if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| err = ZIP_ERRNO; |
| zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; |
| zi->ci.stream.next_out = zi->ci.buffered_data; |
| } |
| |
| |
| if(err != ZIP_OK) |
| break; |
| |
| if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| { |
| uLong uTotalOutBefore = zi->ci.stream.total_out; |
| err=deflate(&zi->ci.stream, Z_NO_FLUSH); |
| |
| zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; |
| } |
| else |
| { |
| uInt copy_this,i; |
| if (zi->ci.stream.avail_in < zi->ci.stream.avail_out) |
| copy_this = zi->ci.stream.avail_in; |
| else |
| copy_this = zi->ci.stream.avail_out; |
| |
| for (i = 0; i < copy_this; i++) |
| *(((char*)zi->ci.stream.next_out)+i) = |
| *(((const char*)zi->ci.stream.next_in)+i); |
| { |
| zi->ci.stream.avail_in -= copy_this; |
| zi->ci.stream.avail_out-= copy_this; |
| zi->ci.stream.next_in+= copy_this; |
| zi->ci.stream.next_out+= copy_this; |
| zi->ci.stream.total_in+= copy_this; |
| zi->ci.stream.total_out+= copy_this; |
| zi->ci.pos_in_buffered_data += copy_this; |
| } |
| } |
| }// while(...) |
| } |
| |
| return err; |
| } |
| |
| extern int ZEXPORT zipCloseFileInZipRaw(zipFile file, uLong uncompressed_size, uLong crc32) { |
| return zipCloseFileInZipRaw64 (file, uncompressed_size, crc32); |
| } |
| |
| extern int ZEXPORT zipCloseFileInZipRaw64(zipFile file, ZPOS64_T uncompressed_size, uLong crc32) { |
| zip64_internal* zi; |
| ZPOS64_T compressed_size; |
| uLong invalidValue = 0xffffffff; |
| unsigned datasize = 0; |
| int err=ZIP_OK; |
| |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| zi = (zip64_internal*)file; |
| |
| if (zi->in_opened_file_inzip == 0) |
| return ZIP_PARAMERROR; |
| zi->ci.stream.avail_in = 0; |
| |
| if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| { |
| while (err==ZIP_OK) |
| { |
| uLong uTotalOutBefore; |
| if (zi->ci.stream.avail_out == 0) |
| { |
| if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| err = ZIP_ERRNO; |
| zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; |
| zi->ci.stream.next_out = zi->ci.buffered_data; |
| } |
| uTotalOutBefore = zi->ci.stream.total_out; |
| err=deflate(&zi->ci.stream, Z_FINISH); |
| zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - uTotalOutBefore) ; |
| } |
| } |
| else if ((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| { |
| #ifdef HAVE_BZIP2 |
| err = BZ_FINISH_OK; |
| while (err==BZ_FINISH_OK) |
| { |
| uLong uTotalOutBefore; |
| if (zi->ci.bstream.avail_out == 0) |
| { |
| if (zip64FlushWriteBuffer(zi) == ZIP_ERRNO) |
| err = ZIP_ERRNO; |
| zi->ci.bstream.avail_out = (uInt)Z_BUFSIZE; |
| zi->ci.bstream.next_out = (char*)zi->ci.buffered_data; |
| } |
| uTotalOutBefore = zi->ci.bstream.total_out_lo32; |
| err=BZ2_bzCompress(&zi->ci.bstream, BZ_FINISH); |
| if(err == BZ_STREAM_END) |
| err = Z_STREAM_END; |
| |
| zi->ci.pos_in_buffered_data += (uInt)(zi->ci.bstream.total_out_lo32 - uTotalOutBefore); |
| } |
| |
| if(err == BZ_FINISH_OK) |
| err = ZIP_OK; |
| #endif |
| } |
| |
| if (err==Z_STREAM_END) |
| err=ZIP_OK; /* this is normal */ |
| |
| if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) |
| { |
| if (zip64FlushWriteBuffer(zi)==ZIP_ERRNO) |
| err = ZIP_ERRNO; |
| } |
| |
| if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
| { |
| int tmp_err = deflateEnd(&zi->ci.stream); |
| if (err == ZIP_OK) |
| err = tmp_err; |
| zi->ci.stream_initialised = 0; |
| } |
| #ifdef HAVE_BZIP2 |
| else if((zi->ci.method == Z_BZIP2ED) && (!zi->ci.raw)) |
| { |
| int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream); |
| if (err==ZIP_OK) |
| err = tmperr; |
| zi->ci.stream_initialised = 0; |
| } |
| #endif |
| |
| if (!zi->ci.raw) |
| { |
| crc32 = (uLong)zi->ci.crc32; |
| uncompressed_size = zi->ci.totalUncompressedData; |
| } |
| compressed_size = zi->ci.totalCompressedData; |
| |
| # ifndef NOCRYPT |
| compressed_size += zi->ci.crypt_header_size; |
| # endif |
| |
| // update Current Item crc and sizes, |
| if(compressed_size >= 0xffffffff || uncompressed_size >= 0xffffffff || zi->ci.pos_local_header >= 0xffffffff) |
| { |
| /*version Made by*/ |
| zip64local_putValue_inmemory(zi->ci.central_header+4,(uLong)45,2); |
| /*version needed*/ |
| zip64local_putValue_inmemory(zi->ci.central_header+6,(uLong)45,2); |
| |
| } |
| |
| zip64local_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/ |
| |
| |
| if(compressed_size >= 0xffffffff) |
| zip64local_putValue_inmemory(zi->ci.central_header+20, invalidValue,4); /*compr size*/ |
| else |
| zip64local_putValue_inmemory(zi->ci.central_header+20, compressed_size,4); /*compr size*/ |
| |
| /// set internal file attributes field |
| if (zi->ci.stream.data_type == Z_ASCII) |
| zip64local_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2); |
| |
| if(uncompressed_size >= 0xffffffff) |
| zip64local_putValue_inmemory(zi->ci.central_header+24, invalidValue,4); /*uncompr size*/ |
| else |
| zip64local_putValue_inmemory(zi->ci.central_header+24, uncompressed_size,4); /*uncompr size*/ |
| |
| // Add ZIP64 extra info field for uncompressed size |
| if(uncompressed_size >= 0xffffffff) |
| datasize += 8; |
| |
| // Add ZIP64 extra info field for compressed size |
| if(compressed_size >= 0xffffffff) |
| datasize += 8; |
| |
| // Add ZIP64 extra info field for relative offset to local file header of current file |
| if(zi->ci.pos_local_header >= 0xffffffff) |
| datasize += 8; |
| |
| if(datasize > 0) |
| { |
| char* p = NULL; |
| |
| if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree) |
| { |
| // we can not write more data to the buffer that we have room for. |
| return ZIP_BADZIPFILE; |
| } |
| |
| p = zi->ci.central_header + zi->ci.size_centralheader; |
| |
| // Add Extra Information Header for 'ZIP64 information' |
| zip64local_putValue_inmemory(p, 0x0001, 2); // HeaderID |
| p += 2; |
| zip64local_putValue_inmemory(p, datasize, 2); // DataSize |
| p += 2; |
| |
| if(uncompressed_size >= 0xffffffff) |
| { |
| zip64local_putValue_inmemory(p, uncompressed_size, 8); |
| p += 8; |
| } |
| |
| if(compressed_size >= 0xffffffff) |
| { |
| zip64local_putValue_inmemory(p, compressed_size, 8); |
| p += 8; |
| } |
| |
| if(zi->ci.pos_local_header >= 0xffffffff) |
| { |
| zip64local_putValue_inmemory(p, zi->ci.pos_local_header, 8); |
| p += 8; |
| } |
| |
| // Update how much extra free space we got in the memory buffer |
| // and increase the centralheader size so the new ZIP64 fields are included |
| // ( 4 below is the size of HeaderID and DataSize field ) |
| zi->ci.size_centralExtraFree -= datasize + 4; |
| zi->ci.size_centralheader += datasize + 4; |
| |
| // Update the extra info size field |
| zi->ci.size_centralExtra += datasize + 4; |
| zip64local_putValue_inmemory(zi->ci.central_header+30,(uLong)zi->ci.size_centralExtra,2); |
| } |
| |
| if (err==ZIP_OK) |
| err = add_data_in_datablock(&zi->central_dir, zi->ci.central_header, (uLong)zi->ci.size_centralheader); |
| |
| free(zi->ci.central_header); |
| |
| if (err==ZIP_OK) |
| { |
| // Update the LocalFileHeader with the new values. |
| |
| ZPOS64_T cur_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); |
| |
| if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| err = ZIP_ERRNO; |
| |
| if (err==ZIP_OK) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */ |
| |
| if(uncompressed_size >= 0xffffffff || compressed_size >= 0xffffffff ) |
| { |
| if(zi->ci.pos_zip64extrainfo > 0) |
| { |
| // Update the size in the ZIP64 extended field. |
| if (ZSEEK64(zi->z_filefunc,zi->filestream, zi->ci.pos_zip64extrainfo + 4,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| err = ZIP_ERRNO; |
| |
| if (err==ZIP_OK) /* compressed size, unknown */ |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, uncompressed_size, 8); |
| |
| if (err==ZIP_OK) /* uncompressed size, unknown */ |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, compressed_size, 8); |
| } |
| else |
| err = ZIP_BADZIPFILE; // Caller passed zip64 = 0, so no room for zip64 info -> fatal |
| } |
| else |
| { |
| if (err==ZIP_OK) /* compressed size, unknown */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4); |
| |
| if (err==ZIP_OK) /* uncompressed size, unknown */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4); |
| } |
| |
| if (ZSEEK64(zi->z_filefunc,zi->filestream, cur_pos_inzip,ZLIB_FILEFUNC_SEEK_SET)!=0) |
| err = ZIP_ERRNO; |
| } |
| |
| zi->number_entry ++; |
| zi->in_opened_file_inzip = 0; |
| |
| return err; |
| } |
| |
| extern int ZEXPORT zipCloseFileInZip(zipFile file) { |
| return zipCloseFileInZipRaw (file,0,0); |
| } |
| |
| local int Write_Zip64EndOfCentralDirectoryLocator(zip64_internal* zi, ZPOS64_T zip64eocd_pos_inzip) { |
| int err = ZIP_OK; |
| ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writing_offset; |
| |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDLOCHEADERMAGIC,4); |
| |
| /*num disks*/ |
| if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); |
| |
| /*relative offset*/ |
| if (err==ZIP_OK) /* Relative offset to the Zip64EndOfCentralDirectory */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream, pos,8); |
| |
| /*total disks*/ /* Do not support spawning of disk so always say 1 here*/ |
| if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)1,4); |
| |
| return err; |
| } |
| |
| local int Write_Zip64EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) { |
| int err = ZIP_OK; |
| |
| uLong Zip64DataSize = 44; |
| |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ZIP64ENDHEADERMAGIC,4); |
| |
| if (err==ZIP_OK) /* size of this 'zip64 end of central directory' */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)Zip64DataSize,8); // why ZPOS64_T of this ? |
| |
| if (err==ZIP_OK) /* version made by */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); |
| |
| if (err==ZIP_OK) /* version needed */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)45,2); |
| |
| if (err==ZIP_OK) /* number of this disk */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); |
| |
| if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); |
| |
| if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); |
| |
| if (err==ZIP_OK) /* total number of entries in the central dir */ |
| err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); |
| |
| if (err==ZIP_OK) /* size of the central directory */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(ZPOS64_T)size_centraldir,8); |
| |
| if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ |
| { |
| ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset; |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos,8); |
| } |
| return err; |
| } |
| |
| local int Write_EndOfCentralDirectoryRecord(zip64_internal* zi, uLong size_centraldir, ZPOS64_T centraldir_pos_inzip) { |
| int err = ZIP_OK; |
| |
| /*signature*/ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4); |
| |
| if (err==ZIP_OK) /* number of this disk */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); |
| |
| if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); |
| |
| if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ |
| { |
| { |
| if(zi->number_entry >= 0xFFFF) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record |
| else |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); |
| } |
| } |
| |
| if (err==ZIP_OK) /* total number of entries in the central dir */ |
| { |
| if(zi->number_entry >= 0xFFFF) |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)0xffff,2); // use value in ZIP64 record |
| else |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); |
| } |
| |
| if (err==ZIP_OK) /* size of the central directory */ |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_centraldir,4); |
| |
| if (err==ZIP_OK) /* offset of start of central directory with respect to the starting disk number */ |
| { |
| ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writing_offset; |
| if(pos >= 0xffffffff) |
| { |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)0xffffffff,4); |
| } |
| else |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (uLong)(centraldir_pos_inzip - zi->add_position_when_writing_offset),4); |
| } |
| |
| return err; |
| } |
| |
| local int Write_GlobalComment(zip64_internal* zi, const char* global_comment) { |
| int err = ZIP_OK; |
| uInt size_global_comment = 0; |
| |
| if(global_comment != NULL) |
| size_global_comment = (uInt)strlen(global_comment); |
| |
| err = zip64local_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2); |
| |
| if (err == ZIP_OK && size_global_comment > 0) |
| { |
| if (ZWRITE64(zi->z_filefunc,zi->filestream, global_comment, size_global_comment) != size_global_comment) |
| err = ZIP_ERRNO; |
| } |
| return err; |
| } |
| |
| extern int ZEXPORT zipClose(zipFile file, const char* global_comment) { |
| zip64_internal* zi; |
| int err = 0; |
| uLong size_centraldir = 0; |
| ZPOS64_T centraldir_pos_inzip; |
| ZPOS64_T pos; |
| |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| |
| zi = (zip64_internal*)file; |
| |
| if (zi->in_opened_file_inzip == 1) |
| { |
| err = zipCloseFileInZip (file); |
| } |
| |
| #ifndef NO_ADDFILEINEXISTINGZIP |
| if (global_comment==NULL) |
| global_comment = zi->globalcomment; |
| #endif |
| |
| centraldir_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); |
| |
| if (err==ZIP_OK) |
| { |
| linkedlist_datablock_internal* ldi = zi->central_dir.first_block; |
| while (ldi!=NULL) |
| { |
| if ((err==ZIP_OK) && (ldi->filled_in_this_block>0)) |
| { |
| if (ZWRITE64(zi->z_filefunc,zi->filestream, ldi->data, ldi->filled_in_this_block) != ldi->filled_in_this_block) |
| err = ZIP_ERRNO; |
| } |
| |
| size_centraldir += ldi->filled_in_this_block; |
| ldi = ldi->next_datablock; |
| } |
| } |
| free_linkedlist(&(zi->central_dir)); |
| |
| pos = centraldir_pos_inzip - zi->add_position_when_writing_offset; |
| if(pos >= 0xffffffff || zi->number_entry > 0xFFFF) |
| { |
| ZPOS64_T Zip64EOCDpos = ZTELL64(zi->z_filefunc,zi->filestream); |
| Write_Zip64EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); |
| |
| Write_Zip64EndOfCentralDirectoryLocator(zi, Zip64EOCDpos); |
| } |
| |
| if (err==ZIP_OK) |
| err = Write_EndOfCentralDirectoryRecord(zi, size_centraldir, centraldir_pos_inzip); |
| |
| if(err == ZIP_OK) |
| err = Write_GlobalComment(zi, global_comment); |
| |
| if (ZCLOSE64(zi->z_filefunc,zi->filestream) != 0) |
| if (err == ZIP_OK) |
| err = ZIP_ERRNO; |
| |
| #ifndef NO_ADDFILEINEXISTINGZIP |
| free(zi->globalcomment); |
| #endif |
| free(zi); |
| |
| return err; |
| } |
| |
| extern int ZEXPORT zipRemoveExtraInfoBlock(char* pData, int* dataLen, short sHeader) { |
| char* p = pData; |
| int size = 0; |
| char* pNewHeader; |
| char* pTmp; |
| short header; |
| short dataSize; |
| |
| int retVal = ZIP_OK; |
| |
| if(pData == NULL || dataLen == NULL || *dataLen < 4) |
| return ZIP_PARAMERROR; |
| |
| pNewHeader = (char*)ALLOC((unsigned)*dataLen); |
| pTmp = pNewHeader; |
| |
| while(p < (pData + *dataLen)) |
| { |
| header = *(short*)p; |
| dataSize = *(((short*)p)+1); |
| |
| if( header == sHeader ) // Header found. |
| { |
| p += dataSize + 4; // skip it. do not copy to temp buffer |
| } |
| else |
| { |
| // Extra Info block should not be removed, So copy it to the temp buffer. |
| memcpy(pTmp, p, dataSize + 4); |
| p += dataSize + 4; |
| size += dataSize + 4; |
| } |
| |
| } |
| |
| if(size < *dataLen) |
| { |
| // clean old extra info block. |
| memset(pData,0, *dataLen); |
| |
| // copy the new extra info block over the old |
| if(size > 0) |
| memcpy(pData, pNewHeader, size); |
| |
| // set the new extra info size |
| *dataLen = size; |
| |
| retVal = ZIP_OK; |
| } |
| else |
| retVal = ZIP_ERRNO; |
| |
| free(pNewHeader); |
| |
| return retVal; |
| } |
