/* 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 in zip.c 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 recreting zip archive with RAW when deleting items from a zip. ZIP64 data is automaticly 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 Aug-2010 - Nathan Moinvaziri - Added PKZIP spanning support May-2012 - Nathan Moinvaziri - Added AES encryption support Jul-2012 - Nathan Moinvaziri - Clean up, removed zipRemoveExtraInfoBlock ------------------------------------------------------------------------------------ */ #include #include #include #include #include "zlib.h" #include "zip.h" #ifdef STDC # include # include # include #endif #ifdef NO_ERRNO_H extern int errno; #else # include #endif #ifdef HAVE_AES #define AES_METHOD (99) #define AES_PWVERIFYSIZE (2) #define AES_AUTHCODESIZE (10) #define AES_MAXSALTLENGTH (16) #define AES_VERSION (0x0001) #define AES_ENCRYPTIONMODE (0x03) #include "aes/aes.h" #include "aes/fileenc.h" #include "aes/prng.h" #include "aes/entropy.h" #endif #ifndef NOCRYPT #define INCLUDECRYPTINGCODE_IFCRYPTALLOWED #include "crypt.h" #endif #ifndef local # define local static #endif /* compile with -Dlocal if your debugger can't find static symbols */ #define SIZEDATA_INDATABLOCK (4096-(4*4)) #define DISKHEADERMAGIC (0x08074b50) #define LOCALHEADERMAGIC (0x04034b50) #define CENTRALHEADERMAGIC (0x02014b50) #define ENDHEADERMAGIC (0x06054b50) #define ZIP64ENDHEADERMAGIC (0x06064b50) #define ZIP64ENDLOCHEADERMAGIC (0x07064b50) #define FLAG_LOCALHEADER_OFFSET (0x06) #define CRC_LOCALHEADER_OFFSET (0x0e) #define SIZECENTRALHEADER (0x2e) /* 46 */ #define SIZECENTRALHEADERLOCATOR (0x14) /* 20 */ #define SIZECENTRALDIRITEM (0x2e) #define SIZEZIPLOCALHEADER (0x1e) #ifndef BUFREADCOMMENT #define BUFREADCOMMENT (0x400) #endif #ifndef VERSIONMADEBY #define VERSIONMADEBY (0x0) /* platform dependent */ #endif #ifndef Z_BUFSIZE #define Z_BUFSIZE (64*1024) #endif #ifndef Z_MAXFILENAMEINZIP #define Z_MAXFILENAMEINZIP (256) #endif #ifndef ALLOC # define ALLOC(size) (malloc(size)) #endif #ifndef TRYFREE # define TRYFREE(p) {if (p) free(p);} #endif // NOT sure that this work on ALL platform #define MAKEULONG64(a, b) ((ZPOS64_T)(((unsigned long)(a)) | ((ZPOS64_T)((unsigned long)(b))) << 32)) #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"; 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 #ifdef HAVE_AES fcrypt_ctx aes_ctx; prng_ctx aes_rng[1]; #endif int stream_initialised; /* 1 is stream is initialized */ 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 central header but that are not used */ uLong flag; /* flag of the file currently writing */ int method; /* compression method written to file.*/ int compression_method; /* compression method to use */ 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 */ uLong number_disk; /* number of current disk used for spanning ZIP */ ZPOS64_T pos_zip64extrainfo; ZPOS64_T totalCompressedData; ZPOS64_T totalUncompressedData; #ifndef NOCRYPT unsigned long keys[3]; /* keys defining the pseudo-random sequence */ const unsigned long* pcrc_32_tab; int crypt_header_size; #endif } curfile64_info; typedef struct { zlib_filefunc64_32_def z_filefunc; voidpf filestream; /* io structure of the zipfile */ voidpf filestream_with_CD; /* io structure of the zipfile with the central dir */ 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.*/ int append; /* append mode */ 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_writting_offset; ZPOS64_T number_entry; ZPOS64_T disk_size; /* size of each disk */ uLong number_disk; /* number of the current disk, used for spanning ZIP */ uLong number_disk_with_CD; /* number the the disk with central dir, used for spanning ZIP */ #ifndef NO_ADDFILEINEXISTINGZIP char *globalcomment; #endif } zip64_internal; /* Allocate a new data block */ local linkedlist_datablock_internal* allocate_new_datablock OF(()); local linkedlist_datablock_internal* allocate_new_datablock() { 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; } /* Free data block in linked list */ local void free_datablock OF((linkedlist_datablock_internal* ldi)); local void free_datablock(linkedlist_datablock_internal* ldi) { while (ldi != NULL) { linkedlist_datablock_internal* ldinext = ldi->next_datablock; TRYFREE(ldi); ldi = ldinext; } } /* Initialize linked list */ local void init_linkedlist OF((linkedlist_data* ll)); local void init_linkedlist(linkedlist_data* ll) { ll->first_block = ll->last_block = NULL; } /* Free entire linked list and all data blocks */ local void free_linkedlist OF((linkedlist_data* ll)); local void free_linkedlist(linkedlist_data* ll) { free_datablock(ll->first_block); ll->first_block = ll->last_block = NULL; } /* Add data to linked list data block */ local int add_data_in_datablock OF((linkedlist_data* ll, const void* buf, uLong len)); 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 = (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;ifilled_in_this_block += copy_this; ldi->avail_in_this_block -= copy_this; from_copy += copy_this ; len -= copy_this; } return ZIP_OK; } local uLong zip64local_TmzDateToDosDate OF((const tm_zip* ptm)); 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)(((ptm->tm_mday) + (32 * (ptm->tm_mon+1)) + (512 * year)) << 16) | ((ptm->tm_sec/2) + (32* ptm->tm_min) + (2048 * (uLong)ptm->tm_hour)); } /* 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 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T x, int nbByte)); 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,nbByte)!=(uLong)nbByte) return ZIP_ERRNO; return ZIP_OK; } local void zip64local_putValue_inmemory OF((void* dest, ZPOS64_T x, int nbByte)); 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 int zip64local_getByte OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, int *pi)); 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; } if (ZERROR64(*pzlib_filefunc_def, filestream)) return ZIP_ERRNO; return ZIP_EOF; } local int zip64local_getShort OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX)); 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 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, uLong *pX)); 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 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, ZPOS64_T *pX)); 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; } /* Gets the amount of bytes left to write to the current disk for spanning archives */ local int zipGetDiskSizeAvailable OF((zipFile file, ZPOS64_T *size_available)); local int zipGetDiskSizeAvailable(zipFile file, ZPOS64_T *size_available) { zip64_internal* zi; ZPOS64_T current_disk_size; zi = (zip64_internal*)file; ZSEEK64(zi->z_filefunc, zi->filestream, 0, ZLIB_FILEFUNC_SEEK_END); current_disk_size = ZTELL64(zi->z_filefunc, zi->filestream); *size_available = zi->disk_size - current_disk_size; return ZIP_OK; } /* Goes to a specific disk number for spanning archives */ local int zipGoToSpecificDisk OF((zipFile file, int number_disk, int open_existing)); local int zipGoToSpecificDisk(zipFile file, int number_disk, int open_existing) { zip64_internal* zi; int err = ZIP_OK; zi = (zip64_internal*)file; if (zi->disk_size == 0) return err; if ((zi->filestream != NULL) && (zi->filestream != zi->filestream_with_CD)) ZCLOSE64(zi->z_filefunc, zi->filestream); zi->filestream = ZOPENDISK64(zi->z_filefunc, zi->filestream_with_CD, number_disk, (open_existing == 1) ? (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING) : (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE)); if (zi->filestream == NULL) err = ZIP_ERRNO; return err; } /* Goes to the first disk in a spanned archive */ local int zipGoToFirstDisk OF((zipFile file)); local int zipGoToFirstDisk(zipFile file) { zip64_internal* zi; int number_disk_next; int err = ZIP_OK; zi = (zip64_internal*)file; if (zi->disk_size == 0) return err; number_disk_next = 0; if (zi->number_disk_with_CD > 0) number_disk_next = zi->number_disk_with_CD - 1; err = zipGoToSpecificDisk(file, number_disk_next, (zi->append == APPEND_STATUS_ADDINZIP)); if ((err == ZIP_ERRNO) && (zi->append == APPEND_STATUS_ADDINZIP)) err = zipGoToSpecificDisk(file, number_disk_next, 0); if (err == ZIP_OK) zi->number_disk = number_disk_next; ZSEEK64(zi->z_filefunc, zi->filestream, 0, ZLIB_FILEFUNC_SEEK_END); return err; } /* Goes to the next disk in a spanned archive */ local int zipGoToNextDisk OF((zipFile file)); local int zipGoToNextDisk(zipFile file) { zip64_internal* zi; ZPOS64_T size_available_in_disk; int err = ZIP_OK; int number_disk_next; zi = (zip64_internal*)file; if (zi->disk_size == 0) return err; number_disk_next = zi->number_disk + 1; do { err = zipGoToSpecificDisk(file, number_disk_next, (zi->append == APPEND_STATUS_ADDINZIP)); if ((err == ZIP_ERRNO) && (zi->append == APPEND_STATUS_ADDINZIP)) err = zipGoToSpecificDisk(file, number_disk_next, 0); if (err != ZIP_OK) break; err = zipGetDiskSizeAvailable(file, &size_available_in_disk); if (err != ZIP_OK) break; zi->number_disk = number_disk_next; zi->number_disk_with_CD = zi->number_disk + 1; number_disk_next += 1; } while (size_available_in_disk <= 0); return err; } /* Locate the Central directory of a zipfile (at the end, just before the global comment) */ local ZPOS64_T zip64local_SearchCentralDir OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream)); local ZPOS64_T zip64local_SearchCentralDir(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream) { unsigned char* buf; ZPOS64_T file_size; ZPOS64_T back_read = 4; ZPOS64_T max_back=0xffff; /* maximum size of global comment */ ZPOS64_T pos_found=0; uLong read_size; ZPOS64_T read_pos; int i; buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); if (buf == NULL) return 0; if (ZSEEK64(*pzlib_filefunc_def, filestream, 0, ZLIB_FILEFUNC_SEEK_END) != 0) return 0; file_size = ZTELL64(*pzlib_filefunc_def, filestream); if (max_back > file_size) max_back = file_size; while (back_read < max_back) { if (back_read + BUFREADCOMMENT > max_back) back_read = max_back; else back_read += BUFREADCOMMENT; read_pos = file_size-back_read; read_size = ((BUFREADCOMMENT+4) < (file_size-read_pos)) ? (BUFREADCOMMENT+4) : (uLong)(file_size-read_pos); if (ZSEEK64(*pzlib_filefunc_def, filestream, read_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) break; if (ZREAD64(*pzlib_filefunc_def, filestream, buf, read_size) != read_size) break; for (i = (int)read_size-3; (i--) > 0;) if ((*(buf+i)) == (ENDHEADERMAGIC & 0xff) && (*(buf+i+1)) == (ENDHEADERMAGIC >> 8 & 0xff) && (*(buf+i+2)) == (ENDHEADERMAGIC >> 16 & 0xff) && (*(buf+i+3)) == (ENDHEADERMAGIC >> 24 & 0xff)) { pos_found = read_pos+i; break; } if (pos_found != 0) break; } TRYFREE(buf); return pos_found; } /* Locate the Central directory 64 of a zipfile (at the end, just before the global comment) */ local ZPOS64_T zip64local_SearchCentralDir64 OF((const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, const ZPOS64_T endcentraloffset)); local ZPOS64_T zip64local_SearchCentralDir64(const zlib_filefunc64_32_def* pzlib_filefunc_def, voidpf filestream, const ZPOS64_T endcentraloffset) { ZPOS64_T offset; uLong uL; /* Zip64 end of central directory locator */ if (ZSEEK64(*pzlib_filefunc_def, filestream, endcentraloffset - SIZECENTRALHEADERLOCATOR, ZLIB_FILEFUNC_SEEK_SET) != 0) return 0; /* read locator signature */ if (zip64local_getLong(pzlib_filefunc_def, filestream, &uL) != ZIP_OK) return 0; if (uL != ZIP64ENDLOCHEADERMAGIC) 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; /* relative offset of the zip64 end of central directory record */ if (zip64local_getLong64(pzlib_filefunc_def, filestream, &offset) != ZIP_OK) return 0; /* total number of disks */ if (zip64local_getLong(pzlib_filefunc_def, filestream, &uL) != ZIP_OK) return 0; /* Goto end of central directory record */ if (ZSEEK64(*pzlib_filefunc_def,filestream, offset, ZLIB_FILEFUNC_SEEK_SET) != 0) return 0; /* the signature */ if (zip64local_getLong(pzlib_filefunc_def, filestream, &uL) != ZIP_OK) return 0; if (uL != ZIP64ENDHEADERMAGIC) return 0; return offset; } extern zipFile ZEXPORT zipOpen4(const void *pathname, int append, ZPOS64_T disk_size, zipcharpc* globalcomment, zlib_filefunc64_32_def* pzlib_filefunc64_32_def) { zip64_internal ziinit; zip64_internal* zi; 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 number_entry_CD; /* total number of entries in the central dir */ ZPOS64_T number_entry; ZPOS64_T central_pos; ZPOS64_T size_central_dir_to_read; uLong uL; uLong size_comment; size_t buf_size = SIZEDATA_INDATABLOCK; void* buf_read; int err = ZIP_OK; int mode; 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; if (append == APPEND_STATUS_CREATE) mode = (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_CREATE); else mode = (ZLIB_FILEFUNC_MODE_READ | ZLIB_FILEFUNC_MODE_WRITE | ZLIB_FILEFUNC_MODE_EXISTING); ziinit.filestream = ZOPEN64(ziinit.z_filefunc, pathname, mode); if (ziinit.filestream == NULL) return NULL; if (append == APPEND_STATUS_CREATEAFTER) { /* Don't support spanning ZIP with APPEND_STATUS_CREATEAFTER */ if (disk_size > 0) return NULL; ZSEEK64(ziinit.z_filefunc,ziinit.filestream,0,SEEK_END); } ziinit.filestream_with_CD = ziinit.filestream; ziinit.append = append; ziinit.number_disk = 0; ziinit.number_disk_with_CD = 0; ziinit.disk_size = disk_size; 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_writting_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; } #ifndef NO_ADDFILEINEXISTINGZIP /* Add file in a zipfile */ ziinit.globalcomment = NULL; if (append == APPEND_STATUS_ADDINZIP) { /* Read and Cache Central Directory Records */ central_pos = zip64local_SearchCentralDir(&ziinit.z_filefunc,ziinit.filestream); /* disable to allow appending to empty ZIP archive (must be standard zip, not zip64) if (central_pos == 0) err = ZIP_ERRNO; */ if(err == ZIP_OK) { /* read end of central directory info */ if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream, central_pos,ZLIB_FILEFUNC_SEEK_SET) != 0) err = ZIP_ERRNO; /* the signature, already checked */ if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK) err = ZIP_ERRNO; /* number of this disk */ if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &ziinit.number_disk) != ZIP_OK) err = ZIP_ERRNO; /* number of the disk with the start of the central directory */ if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &ziinit.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(&ziinit.z_filefunc, ziinit.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(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK) err = ZIP_ERRNO; else number_entry_CD = uL; if (number_entry_CD!=number_entry) err = ZIP_BADZIPFILE; /* size of the central directory */ size_central_dir = 0; if (zip64local_getLong(&ziinit.z_filefunc, ziinit.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(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK) err = ZIP_ERRNO; else offset_central_dir = uL; /* zipfile global comment length */ if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &size_comment) != ZIP_OK) err = ZIP_ERRNO; if ((err == ZIP_OK) && ((number_entry_CD == 0xffff) || (offset_central_dir == 0xffffffff))) { /* Format should be Zip64, as the central directory or file size is too large */ central_pos = zip64local_SearchCentralDir64(&ziinit.z_filefunc, ziinit.filestream, central_pos); if (central_pos) { ZPOS64_T sizeEndOfCentralDirectory; if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream, central_pos, ZLIB_FILEFUNC_SEEK_SET) != 0) err = ZIP_ERRNO; /* the signature, already checked */ if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK) err = ZIP_ERRNO; /* size of zip64 end of central directory record */ if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &sizeEndOfCentralDirectory) != ZIP_OK) err = ZIP_ERRNO; /* version made by */ if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK) err = ZIP_ERRNO; /* version needed to extract */ if (zip64local_getShort(&ziinit.z_filefunc, ziinit.filestream, &uL) != ZIP_OK) err = ZIP_ERRNO; /* number of this disk */ if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &ziinit.number_disk) != ZIP_OK) err = ZIP_ERRNO; /* number of the disk with the start of the central directory */ if (zip64local_getLong(&ziinit.z_filefunc, ziinit.filestream, &ziinit.number_disk_with_CD) != ZIP_OK) err = ZIP_ERRNO; /* total number of entries in the central directory on this disk */ if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &number_entry) != ZIP_OK) err = ZIP_ERRNO; /* total number of entries in the central directory */ if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.filestream, &number_entry_CD) != ZIP_OK) err = ZIP_ERRNO; if (number_entry_CD!=number_entry) err = ZIP_BADZIPFILE; /* size of the central directory */ if (zip64local_getLong64(&ziinit.z_filefunc, ziinit.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(&ziinit.z_filefunc, ziinit.filestream, &offset_central_dir) != ZIP_OK) err = ZIP_ERRNO; } else err = ZIP_BADZIPFILE; } } if ((err == ZIP_OK) && (central_pos0) { ziinit.globalcomment = (char*)ALLOC(size_comment+1); if (ziinit.globalcomment) { size_comment = ZREAD64(ziinit.z_filefunc, ziinit.filestream, ziinit.globalcomment, size_comment); ziinit.globalcomment[size_comment]=0; } } byte_before_the_zipfile = central_pos - (offset_central_dir+size_central_dir); ziinit.add_position_when_writting_offset = byte_before_the_zipfile; /* Store central directory in memory */ size_central_dir_to_read = size_central_dir; buf_size = SIZEDATA_INDATABLOCK; buf_read = (void*)ALLOC(buf_size); if (ZSEEK64(ziinit.z_filefunc, ziinit.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(ziinit.z_filefunc, ziinit.filestream, buf_read, (uLong)read_this) != read_this) err = ZIP_ERRNO; if (err == ZIP_OK) err = add_data_in_datablock(&ziinit.central_dir, buf_read, (uLong)read_this); size_central_dir_to_read -= read_this; } TRYFREE(buf_read); ziinit.begin_pos = byte_before_the_zipfile; ziinit.number_entry = number_entry_CD; if (ZSEEK64(ziinit.z_filefunc, ziinit.filestream, offset_central_dir+byte_before_the_zipfile, ZLIB_FILEFUNC_SEEK_SET) != 0) err = ZIP_ERRNO; } if (globalcomment) *globalcomment = ziinit.globalcomment; #endif if (err != ZIP_OK) { #ifndef NO_ADDFILEINEXISTINGZIP TRYFREE(ziinit.globalcomment); #endif TRYFREE(zi); return NULL; } *zi = ziinit; zipGoToFirstDisk((zipFile)zi); 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 zipOpen4(pathname, append, 0, globalcomment, &zlib_filefunc64_32_def_fill); } return zipOpen4(pathname, append, 0, 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 zipOpen4(pathname, append, 0, globalcomment, &zlib_filefunc64_32_def_fill); } return zipOpen4(pathname, append, 0, globalcomment, NULL); } extern zipFile ZEXPORT zipOpen3(const char *pathname, int append, ZPOS64_T disk_size, 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 zipOpen4(pathname, append, disk_size, globalcomment, &zlib_filefunc64_32_def_fill); } return zipOpen4(pathname, append, disk_size, globalcomment, NULL); } extern zipFile ZEXPORT zipOpen3_64(const void *pathname, int append, ZPOS64_T disk_size, 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 zipOpen4(pathname, append, disk_size, globalcomment, &zlib_filefunc64_32_def_fill); } return zipOpen4(pathname, append, disk_size, globalcomment, NULL); } extern zipFile ZEXPORT zipOpen(const char* pathname, int append) { return zipOpen3((const void*)pathname,append,0,NULL,NULL); } extern zipFile ZEXPORT zipOpen64(const void* pathname, int append) { return zipOpen3(pathname,append,0,NULL,NULL); } 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 = 0; uInt i; int err = ZIP_OK; ZPOS64_T size_available; ZPOS64_T size_needed; #ifdef NOCRYPT (crcForCrypting); if (password != NULL) return ZIP_PARAMERROR; #endif if (file == NULL) return ZIP_PARAMERROR; if ((method != 0) && #ifdef HAVE_BZIP2 (method != Z_BZIP2ED) && #endif (method != Z_DEFLATED)) 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 = (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.method = method; zi->ci.compression_method = method; zi->ci.crc32 = 0; zi->ci.encrypt = 0; zi->ci.stream_initialised = 0; zi->ci.pos_in_buffered_data = 0; zi->ci.raw = raw; 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; #ifdef HAVE_AES zi->ci.method = AES_METHOD; #endif } if (zi->disk_size > 0) { if ((zi->number_disk == 0) && (zi->number_entry == 0)) /* err = */ zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)DISKHEADERMAGIC, 4); /* Make sure enough space available on current disk for local header */ zipGetDiskSizeAvailable((zipFile)zi, &size_available); size_needed = 30 + size_filename + size_extrafield_local; if (zi->ci.zip64) size_needed += 20; #ifdef HAVE_AES if (zi->ci.method == AES_METHOD) size_needed += 11; #endif if (size_available < size_needed) zipGoToNextDisk((zipFile)zi); } 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 reserved for ZIP64 extra info */ #ifdef HAVE_AES if (zi->ci.method == AES_METHOD) zi->ci.size_centralExtraFree += 11; /* Extra space reserved for AES extra info */ #endif zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader + zi->ci.size_centralExtraFree); zi->ci.number_disk = zi->number_disk; zi->ci.size_centralExtra = size_extrafield_global; /* Write central directory header */ zip64local_putValue_inmemory(zi->ci.central_header, (uLong)CENTRALHEADERMAGIC, 4); 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)zi->ci.number_disk, 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_writting_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; /* Write the local header */ 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) /* uncompressed size, unknown */ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0xFFFFFFFF, 4); else /* uncompressed size, unknown */ err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)0, 4); } if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)size_filename, 2); if (err == ZIP_OK) { ZPOS64_T size_extrafield = size_extrafield_local; if (zi->ci.zip64) size_extrafield += 20; #ifdef HAVE_AES if (zi->ci.method == AES_METHOD) size_extrafield += 11; #endif 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; } /* Write the Zip64 extended info */ if ((err == ZIP_OK) && (zi->ci.zip64)) { short headerid = 1; short datasize = 16; ZPOS64_T compressed_size = 0; ZPOS64_T uncompressed_size = 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, (short)headerid, 2); /* err = */ zip64local_putValue(&zi->z_filefunc, zi->filestream, (short)datasize, 2); /* err = */ zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)uncompressed_size, 8); err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)compressed_size, 8); } #ifdef HAVE_AES /* Write the AES extended info */ if ((err == ZIP_OK) && (zi->ci.method == AES_METHOD)) { int headerid = 0x9901; short datasize = 7; err = zip64local_putValue(&zi->z_filefunc, zi->filestream, headerid, 2); err = zip64local_putValue(&zi->z_filefunc, zi->filestream, datasize, 2); err = zip64local_putValue(&zi->z_filefunc, zi->filestream, AES_VERSION, 2); err = zip64local_putValue(&zi->z_filefunc, zi->filestream, 'A', 1); err = zip64local_putValue(&zi->z_filefunc, zi->filestream, 'E', 1); err = zip64local_putValue(&zi->z_filefunc, zi->filestream, AES_ENCRYPTIONMODE, 1); err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->ci.compression_method, 2); } #endif #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; if ((err == ZIP_OK) && (!zi->ci.raw)) { if (method == Z_DEFLATED) { zi->ci.stream.zalloc = (alloc_func)0; zi->ci.stream.zfree = (free_func)0; zi->ci.stream.opaque = (voidpf)zi; 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 (method == Z_BZIP2ED) { #ifdef HAVE_BZIP2 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)) { zi->ci.encrypt = 1; #ifdef HAVE_AES if (zi->ci.method == AES_METHOD) { unsigned char passverify[AES_PWVERIFYSIZE]; unsigned char saltvalue[AES_MAXSALTLENGTH]; uInt saltlength; if ((AES_ENCRYPTIONMODE < 1) || (AES_ENCRYPTIONMODE > 3)) return Z_ERRNO; saltlength = SALT_LENGTH(AES_ENCRYPTIONMODE); prng_init(entropy_fun, zi->ci.aes_rng); prng_rand(saltvalue, saltlength, zi->ci.aes_rng); prng_end(zi->ci.aes_rng); fcrypt_init(AES_ENCRYPTIONMODE, password, strlen(password), saltvalue, passverify, &zi->ci.aes_ctx); if (ZWRITE64(zi->z_filefunc,zi->filestream,saltvalue,saltlength) != saltlength) err = ZIP_ERRNO; if (ZWRITE64(zi->z_filefunc,zi->filestream,passverify,AES_PWVERIFYSIZE) != AES_PWVERIFYSIZE) err = ZIP_ERRNO; zi->ci.crypt_header_size = saltlength + AES_PWVERIFYSIZE + AES_AUTHCODESIZE; } else #endif { unsigned char bufHead[RAND_HEAD_LEN]; unsigned int sizeHead; zi->ci.pcrc_32_tab = (const unsigned long *)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); } /* Flushes the write buffer to disk */ local int zip64FlushWriteBuffer OF((zip64_internal* zi)); local int zip64FlushWriteBuffer(zip64_internal* zi) { int err = ZIP_OK; uInt written = 0; uInt total_written = 0; uInt write = 0; uInt max_write = 0; ZPOS64_T size_available = 0; if (zi->ci.encrypt != 0) { #ifndef NOCRYPT #ifdef HAVE_AES if (zi->ci.method == AES_METHOD) { fcrypt_encrypt(zi->ci.buffered_data, zi->ci.pos_in_buffered_data, &zi->ci.aes_ctx); } else #endif { 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 } write = zi->ci.pos_in_buffered_data; do { max_write = write; if (zi->disk_size > 0) { err = zipGetDiskSizeAvailable((zipFile)zi, &size_available); if (err != ZIP_OK) return err; if (size_available == 0) { err = zipGoToNextDisk((zipFile)zi); if (err != ZIP_OK) return err; } if (size_available < (ZPOS64_T)max_write) max_write = (uInt)size_available; } written = ZWRITE64(zi->z_filefunc, zi->filestream, zi->ci.buffered_data + total_written, max_write); if (ZERROR64(zi->z_filefunc,zi->filestream)) { err = ZIP_ERRNO; break; } total_written += written; write -= written; } while (write > 0); zi->ci.totalCompressedData += zi->ci.pos_in_buffered_data; #ifdef HAVE_BZIP2 if (zi->ci.compression_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.compression_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; } else { 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*)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 total_out_before = 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 - total_out_before); } 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; } } } 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; short 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.raw) { if (zi->ci.compression_method == Z_DEFLATED) { while (err == ZIP_OK) { uLong total_out_before; 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; } total_out_before = zi->ci.stream.total_out; err = deflate(&zi->ci.stream, Z_FINISH); zi->ci.pos_in_buffered_data += (uInt)(zi->ci.stream.total_out - total_out_before); } } else if (zi->ci.compression_method == Z_BZIP2ED) { #ifdef HAVE_BZIP2 err = BZ_FINISH_OK; while (err == BZ_FINISH_OK) { uLong total_out_before; 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; } total_out_before = 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 - total_out_before); } 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; } #ifdef HAVE_AES if (zi->ci.method == AES_METHOD) { unsigned char authcode[AES_AUTHCODESIZE]; fcrypt_end(authcode, &zi->ci.aes_ctx); if (ZWRITE64(zi->z_filefunc, zi->filestream, authcode, AES_AUTHCODESIZE) != AES_AUTHCODESIZE) err = ZIP_ERRNO; } #endif if (!zi->ci.raw) { if (zi->ci.compression_method == Z_DEFLATED) { 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.compression_method == Z_BZIP2ED) { int tmperr = BZ2_bzCompressEnd(&zi->ci.bstream); if (err == ZIP_OK) err = tmperr; zi->ci.stream_initialised = 0; } #endif 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) { zip64local_putValue_inmemory(zi->ci.central_header+4, (uLong)45, 2); /* version made by */ zip64local_putValue_inmemory(zi->ci.central_header+6, (uLong)45, 2); /* version needed */ } 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 */ if (zi->ci.stream.data_type == Z_ASCII) zip64local_putValue_inmemory(zi->ci.central_header+36, (uLong)Z_ASCII, 2); /* internal file attrib */ 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; /* Add Extra Information Header for 'ZIP64 information' */ if (datasize > 0) { char* p = zi->ci.central_header + zi->ci.size_centralheader; if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree) return ZIP_BADZIPFILE; zip64local_putValue_inmemory(p, 0x0001, 2); p += 2; zip64local_putValue_inmemory(p, datasize, 2); 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 */ ; } zi->ci.size_centralExtraFree -= datasize + 4; zi->ci.size_centralheader += datasize + 4; zi->ci.size_centralExtra += datasize + 4; zip64local_putValue_inmemory(zi->ci.central_header+30, (uLong)zi->ci.size_centralExtra, 2); } #ifdef HAVE_AES /* Write the AES extended info */ if (zi->ci.method == AES_METHOD) { char* p = zi->ci.central_header + zi->ci.size_centralheader; datasize = 7; if((uLong)(datasize + 4) > zi->ci.size_centralExtraFree) return ZIP_BADZIPFILE; zip64local_putValue_inmemory(p, 0x9901, 2); p += 2; zip64local_putValue_inmemory(p, datasize, 2); p += 2; zip64local_putValue_inmemory(p, AES_VERSION, 2); p += 2; zip64local_putValue_inmemory(p, 'A', 1); p += 1; zip64local_putValue_inmemory(p, 'E', 1); p += 1; zip64local_putValue_inmemory(p, AES_ENCRYPTIONMODE, 1); p += 1; zip64local_putValue_inmemory(p, zi->ci.compression_method, 2); p += 2; zi->ci.size_centralExtraFree -= datasize + 4; zi->ci.size_centralheader += datasize + 4; zi->ci.size_centralExtra += datasize + 4; zip64local_putValue_inmemory(zi->ci.central_header+30, (uLong)zi->ci.size_centralExtra, 2); } #endif 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); uLong cur_number_disk = zi->number_disk; /* Local file header is stored on previous disk, switch to make edits */ if (zi->ci.number_disk != cur_number_disk) zipGoToSpecificDisk(file, zi->ci.number_disk, 1); 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); } /* Now switch back again to the disk we were on before */ if (zi->ci.number_disk != cur_number_disk) zipGoToSpecificDisk(file, cur_number_disk, 1); 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); } extern int ZEXPORT zipClose(zipFile file, const char* global_comment) { zip64_internal* zi; int err = 0; uLong size_centraldir = 0; uInt size_global_comment = 0; ZPOS64_T centraldir_pos_inzip; ZPOS64_T pos; int write; 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 if (zi->filestream != zi->filestream_with_CD) { if (ZCLOSE64(zi->z_filefunc, zi->filestream) != 0) if (err == ZIP_OK) err = ZIP_ERRNO; if (zi->disk_size > 0) zi->number_disk_with_CD = zi->number_disk + 1; zi->filestream = zi->filestream_with_CD; } 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)) { write = ZWRITE64(zi->z_filefunc, zi->filestream, ldi->data, ldi->filled_in_this_block); if (write != 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_writting_offset; /* Write the ZIP64 central directory header */ if (pos >= 0xffffffff || zi->number_entry > 0xffff) { ZPOS64_T zip64eocd_pos_inzip = ZTELL64(zi->z_filefunc,zi->filestream); uLong zip64datasize = 44; err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)ZIP64ENDHEADERMAGIC, 4); /* size of this 'zip64 end of central directory' */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (ZPOS64_T)zip64datasize, 8); /* version made by */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)45, 2); /* version needed */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)45, 2); /* number of this disk */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 4); /* number of the disk with the start of the central directory */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 4); /* total number of entries in the central dir on this disk */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); /* total number of entries in the central dir */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, zi->number_entry, 8); /* size of the central directory */ if (err == ZIP_OK) 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_writting_offset; err = zip64local_putValue(&zi->z_filefunc,zi->filestream, (ZPOS64_T)pos, 8); } if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)ZIP64ENDLOCHEADERMAGIC, 4); /* number of the disk with the start of the central directory */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 4); /*relative offset to the Zip64EndOfCentralDirectory */ if (err == ZIP_OK) { ZPOS64_T pos = zip64eocd_pos_inzip - zi->add_position_when_writting_offset; err = zip64local_putValue(&zi->z_filefunc, zi->filestream, pos, 8); } /* number of the disk with the start of the central directory */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD+1, 4); } /* Write the central directory header */ /* signature */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)ENDHEADERMAGIC, 4); /* number of this disk */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 2); /* number of the disk with the start of the central directory */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)zi->number_disk_with_CD, 2); /* total number of entries in the central dir on this disk */ if (err == ZIP_OK) { 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); } /* total number of entries in the central dir */ if (err == ZIP_OK) { 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); } /* size of the central directory */ if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)size_centraldir,4); /* offset of start of central directory with respect to the starting disk number */ if (err == ZIP_OK) { ZPOS64_T pos = centraldir_pos_inzip - zi->add_position_when_writting_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)pos, 4); } /* Write global comment */ if (global_comment != NULL) size_global_comment = (uInt)strlen(global_comment); if (err == ZIP_OK) err = zip64local_putValue(&zi->z_filefunc, zi->filestream, (uLong)size_global_comment, 2); if (err == ZIP_OK && global_comment > 0) { if (ZWRITE64(zi->z_filefunc, zi->filestream, global_comment, size_global_comment) != size_global_comment) err = ZIP_ERRNO; } if ((ZCLOSE64(zi->z_filefunc, zi->filestream) != 0) && (err == ZIP_OK)) err = ZIP_ERRNO; #ifndef NO_ADDFILEINEXISTINGZIP TRYFREE(zi->globalcomment); #endif TRYFREE(zi); return err; }