| /* zip.c -- IO on .zip files using zlib |
| Version 0.15 beta, Mar 19th, 1998, |
| |
| Read zip.h for more info |
| */ |
| |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include "zlib.h" |
| #include "zip.h" |
| |
| #ifdef STDC |
| # include <stddef.h> |
| # include <string.h> |
| # include <stdlib.h> |
| #endif |
| #ifdef NO_ERRNO_H |
| extern int errno; |
| #else |
| # include <errno.h> |
| #endif |
| |
| |
| #ifndef local |
| # define local static |
| #endif |
| /* compile with -Dlocal if your debugger can't find static symbols */ |
| |
| #ifndef VERSIONMADEBY |
| # define VERSIONMADEBY (0x0) /* platform depedent */ |
| #endif |
| |
| #ifndef Z_BUFSIZE |
| #define Z_BUFSIZE (16384) |
| #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 |
| |
| /* |
| #define SIZECENTRALDIRITEM (0x2e) |
| #define SIZEZIPLOCALHEADER (0x1e) |
| */ |
| |
| /* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */ |
| |
| #ifndef SEEK_CUR |
| #define SEEK_CUR 1 |
| #endif |
| |
| #ifndef SEEK_END |
| #define SEEK_END 2 |
| #endif |
| |
| #ifndef SEEK_SET |
| #define SEEK_SET 0 |
| #endif |
| |
| const char zip_copyright[] = |
| " zip 0.15 Copyright 1998 Gilles Vollant "; |
| |
| |
| #define SIZEDATA_INDATABLOCK (4096-(4*4)) |
| |
| #define LOCALHEADERMAGIC (0x04034b50) |
| #define CENTRALHEADERMAGIC (0x02014b50) |
| #define ENDHEADERMAGIC (0x06054b50) |
| |
| #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 alignement */ |
| 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 */ |
| int stream_initialised; /* 1 is stream is initialised */ |
| uInt pos_in_buffered_data; /* last written byte in buffered_data */ |
| |
| uLong pos_local_header; /* offset of the local header of the file |
| currenty writing */ |
| char* central_header; /* central header data for the current file */ |
| uLong size_centralheader; /* size of the central header for cur file */ |
| uLong flag; /* flag of the file currently writing */ |
| |
| int method; /* compression method of file currenty wr.*/ |
| Byte buffered_data[Z_BUFSIZE];/* buffer contain compressed data to be writ*/ |
| uLong dosDate; |
| uLong crc32; |
| } curfile_info; |
| |
| typedef struct |
| { |
| FILE * filezip; |
| 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.*/ |
| curfile_info ci; /* info on the file curretly writing */ |
| |
| uLong begin_pos; /* position of the beginning of the zipfile */ |
| uLong number_entry; |
| } zip_internal; |
| |
| 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; |
| } |
| |
| local void free_datablock(ldi) |
| linkedlist_datablock_internal* ldi; |
| { |
| while (ldi!=NULL) |
| { |
| linkedlist_datablock_internal* ldinext = ldi->next_datablock; |
| TRYFREE(ldi); |
| ldi = ldinext; |
| } |
| } |
| |
| local void init_linkedlist(ll) |
| linkedlist_data* ll; |
| { |
| ll->first_block = ll->last_block = NULL; |
| } |
| |
| local void free_linkedlist(ll) |
| linkedlist_data* ll; |
| { |
| free_datablock(ll->first_block); |
| ll->first_block = ll->last_block = NULL; |
| } |
| |
| |
| local int add_data_in_datablock(ll,buf,len) |
| 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;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; |
| } |
| |
| |
| local int write_datablock(fout,ll) |
| FILE * fout; |
| linkedlist_data* ll; |
| { |
| linkedlist_datablock_internal* ldi; |
| ldi = ll->first_block; |
| while (ldi!=NULL) |
| { |
| if (ldi->filled_in_this_block > 0) |
| if (fwrite(ldi->data,(uInt)ldi->filled_in_this_block,1,fout)!=1) |
| return ZIP_ERRNO; |
| ldi = ldi->next_datablock; |
| } |
| return ZIP_OK; |
| } |
| |
| /****************************************************************************/ |
| |
| /* =========================================================================== |
| Outputs a long in LSB order to the given file |
| nbByte == 1, 2 or 4 (byte, short or long) |
| */ |
| |
| local int ziplocal_putValue OF((FILE *file, uLong x, int nbByte)); |
| local int ziplocal_putValue (file, x, nbByte) |
| FILE *file; |
| uLong x; |
| int nbByte; |
| { |
| unsigned char buf[4]; |
| int n; |
| for (n = 0; n < nbByte; n++) { |
| buf[n] = (unsigned char)(x & 0xff); |
| x >>= 8; |
| } |
| if (fwrite(buf,nbByte,1,file)!=1) |
| return ZIP_ERRNO; |
| else |
| return ZIP_OK; |
| } |
| |
| local void ziplocal_putValue_inmemory OF((void* dest, uLong x, int nbByte)); |
| local void ziplocal_putValue_inmemory (dest, x, nbByte) |
| void* dest; |
| uLong 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; |
| } |
| } |
| /****************************************************************************/ |
| |
| |
| local uLong ziplocal_TmzDateToDosDate(ptm,dosDate) |
| tm_zip* ptm; |
| uLong dosDate; |
| { |
| 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)); |
| } |
| |
| |
| /****************************************************************************/ |
| |
| extern zipFile ZEXPORT zipOpen (pathname, append) |
| const char *pathname; |
| int append; |
| { |
| zip_internal ziinit; |
| zip_internal* zi; |
| |
| ziinit.filezip = fopen(pathname,(append == 0) ? "wb" : "ab"); |
| if (ziinit.filezip == NULL) |
| return NULL; |
| ziinit.begin_pos = ftell(ziinit.filezip); |
| ziinit.in_opened_file_inzip = 0; |
| ziinit.ci.stream_initialised = 0; |
| ziinit.number_entry = 0; |
| init_linkedlist(&(ziinit.central_dir)); |
| |
| |
| zi = (zip_internal*)ALLOC(sizeof(zip_internal)); |
| if (zi==NULL) |
| { |
| fclose(ziinit.filezip); |
| return NULL; |
| } |
| |
| *zi = ziinit; |
| return (zipFile)zi; |
| } |
| |
| extern int ZEXPORT zipOpenNewFileInZip (file, filename, zipfi, |
| extrafield_local, size_extrafield_local, |
| extrafield_global, size_extrafield_global, |
| comment, method, level) |
| 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; |
| { |
| zip_internal* zi; |
| uInt size_filename; |
| uInt size_comment; |
| uInt i; |
| int err = ZIP_OK; |
| |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| if ((method!=0) && (method!=Z_DEFLATED)) |
| return ZIP_PARAMERROR; |
| |
| zi = (zip_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 = strlen(comment); |
| |
| size_filename = strlen(filename); |
| |
| if (zipfi == NULL) |
| zi->ci.dosDate = 0; |
| else |
| { |
| if (zipfi->dosDate != 0) |
| zi->ci.dosDate = zipfi->dosDate; |
| else zi->ci.dosDate = ziplocal_TmzDateToDosDate(&zipfi->tmz_date,zipfi->dosDate); |
| } |
| |
| zi->ci.flag = 0; |
| if ((level==8) || (level==9)) |
| zi->ci.flag |= 2; |
| if ((level==2)) |
| zi->ci.flag |= 4; |
| if ((level==1)) |
| zi->ci.flag |= 6; |
| |
| zi->ci.crc32 = 0; |
| zi->ci.method = method; |
| zi->ci.stream_initialised = 0; |
| zi->ci.pos_in_buffered_data = 0; |
| zi->ci.pos_local_header = ftell(zi->filezip); |
| zi->ci.size_centralheader = SIZECENTRALHEADER + size_filename + |
| size_extrafield_global + size_comment; |
| zi->ci.central_header = (char*)ALLOC((uInt)zi->ci.size_centralheader); |
| |
| ziplocal_putValue_inmemory(zi->ci.central_header,(uLong)CENTRALHEADERMAGIC,4); |
| /* version info */ |
| ziplocal_putValue_inmemory(zi->ci.central_header+4,(uLong)VERSIONMADEBY,2); |
| ziplocal_putValue_inmemory(zi->ci.central_header+6,(uLong)20,2); |
| ziplocal_putValue_inmemory(zi->ci.central_header+8,(uLong)zi->ci.flag,2); |
| ziplocal_putValue_inmemory(zi->ci.central_header+10,(uLong)zi->ci.method,2); |
| ziplocal_putValue_inmemory(zi->ci.central_header+12,(uLong)zi->ci.dosDate,4); |
| ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)0,4); /*crc*/ |
| ziplocal_putValue_inmemory(zi->ci.central_header+20,(uLong)0,4); /*compr size*/ |
| ziplocal_putValue_inmemory(zi->ci.central_header+24,(uLong)0,4); /*uncompr size*/ |
| ziplocal_putValue_inmemory(zi->ci.central_header+28,(uLong)size_filename,2); |
| ziplocal_putValue_inmemory(zi->ci.central_header+30,(uLong)size_extrafield_global,2); |
| ziplocal_putValue_inmemory(zi->ci.central_header+32,(uLong)size_comment,2); |
| ziplocal_putValue_inmemory(zi->ci.central_header+34,(uLong)0,2); /*disk nm start*/ |
| |
| if (zipfi==NULL) |
| ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)0,2); |
| else |
| ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)zipfi->internal_fa,2); |
| |
| if (zipfi==NULL) |
| ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)0,4); |
| else |
| ziplocal_putValue_inmemory(zi->ci.central_header+38,(uLong)zipfi->external_fa,4); |
| |
| ziplocal_putValue_inmemory(zi->ci.central_header+42,(uLong)zi->ci.pos_local_header,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) = *(filename+i); |
| if (zi->ci.central_header == NULL) |
| return ZIP_INTERNALERROR; |
| |
| /* write the local header */ |
| err = ziplocal_putValue(zi->filezip,(uLong)LOCALHEADERMAGIC,4); |
| |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)20,2);/* version needed to extract */ |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.flag,2); |
| |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.method,2); |
| |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.dosDate,4); |
| |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* crc 32, unknown */ |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* compressed size, unknown */ |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)0,4); /* uncompressed size, unknown */ |
| |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)size_filename,2); |
| |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)size_extrafield_local,2); |
| |
| if ((err==ZIP_OK) && (size_filename>0)) |
| if (fwrite(filename,(uInt)size_filename,1,zi->filezip)!=1) |
| err = ZIP_ERRNO; |
| |
| if ((err==ZIP_OK) && (size_extrafield_local>0)) |
| if (fwrite(extrafield_local,(uInt)size_extrafield_local,1,zi->filezip) |
| !=1) |
| err = ZIP_ERRNO; |
| |
| 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; |
| |
| if ((err==ZIP_OK) && (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; |
| |
| err = deflateInit2(&zi->ci.stream, level, |
| Z_DEFLATED, -MAX_WBITS, DEF_MEM_LEVEL, 0); |
| |
| if (err==Z_OK) |
| zi->ci.stream_initialised = 1; |
| } |
| |
| |
| if (err==Z_OK) |
| zi->in_opened_file_inzip = 1; |
| return err; |
| } |
| |
| extern int ZEXPORT zipWriteInFileInZip (file, buf, len) |
| zipFile file; |
| const voidp buf; |
| unsigned len; |
| { |
| zip_internal* zi; |
| int err=ZIP_OK; |
| |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| zi = (zip_internal*)file; |
| |
| if (zi->in_opened_file_inzip == 0) |
| return ZIP_PARAMERROR; |
| |
| zi->ci.stream.next_in = buf; |
| zi->ci.stream.avail_in = len; |
| zi->ci.crc32 = crc32(zi->ci.crc32,buf,len); |
| |
| while ((err==ZIP_OK) && (zi->ci.stream.avail_in>0)) |
| { |
| if (zi->ci.stream.avail_out == 0) |
| { |
| if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip) |
| !=1) |
| err = ZIP_ERRNO; |
| zi->ci.pos_in_buffered_data = 0; |
| zi->ci.stream.avail_out = (uInt)Z_BUFSIZE; |
| zi->ci.stream.next_out = zi->ci.buffered_data; |
| } |
| |
| if (zi->ci.method == Z_DEFLATED) |
| { |
| 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; |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| extern int ZEXPORT zipCloseFileInZip (file) |
| zipFile file; |
| { |
| zip_internal* zi; |
| int err=ZIP_OK; |
| |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| zi = (zip_internal*)file; |
| |
| if (zi->in_opened_file_inzip == 0) |
| return ZIP_PARAMERROR; |
| zi->ci.stream.avail_in = 0; |
| |
| if (zi->ci.method == Z_DEFLATED) |
| while (err==ZIP_OK) |
| { |
| uLong uTotalOutBefore; |
| if (zi->ci.stream.avail_out == 0) |
| { |
| if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip) |
| !=1) |
| err = ZIP_ERRNO; |
| zi->ci.pos_in_buffered_data = 0; |
| 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) ; |
| } |
| |
| if (err==Z_STREAM_END) |
| err=ZIP_OK; /* this is normal */ |
| |
| if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) |
| if (fwrite(zi->ci.buffered_data,(uInt)zi->ci.pos_in_buffered_data,1,zi->filezip) |
| !=1) |
| err = ZIP_ERRNO; |
| |
| if ((zi->ci.method == Z_DEFLATED) && (err==ZIP_OK)) |
| { |
| err=deflateEnd(&zi->ci.stream); |
| zi->ci.stream_initialised = 0; |
| } |
| |
| ziplocal_putValue_inmemory(zi->ci.central_header+16,(uLong)zi->ci.crc32,4); /*crc*/ |
| ziplocal_putValue_inmemory(zi->ci.central_header+20, |
| (uLong)zi->ci.stream.total_out,4); /*compr size*/ |
| ziplocal_putValue_inmemory(zi->ci.central_header+24, |
| (uLong)zi->ci.stream.total_in,4); /*uncompr size*/ |
| |
| 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) |
| { |
| long cur_pos_inzip = ftell(zi->filezip); |
| if (fseek(zi->filezip, |
| zi->ci.pos_local_header + 14,SEEK_SET)!=0) |
| err = ZIP_ERRNO; |
| |
| if (err==ZIP_OK) |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.crc32,4); /* crc 32, unknown */ |
| |
| if (err==ZIP_OK) /* compressed size, unknown */ |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_out,4); |
| |
| if (err==ZIP_OK) /* uncompressed size, unknown */ |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->ci.stream.total_in,4); |
| |
| if (fseek(zi->filezip, |
| cur_pos_inzip,SEEK_SET)!=0) |
| err = ZIP_ERRNO; |
| } |
| |
| zi->number_entry ++; |
| zi->in_opened_file_inzip = 0; |
| |
| return err; |
| } |
| |
| extern int ZEXPORT zipClose (file, global_comment) |
| zipFile file; |
| const char* global_comment; |
| { |
| zip_internal* zi; |
| int err = 0; |
| uLong size_centraldir = 0; |
| uLong centraldir_pos_inzip ; |
| uInt size_global_comment; |
| if (file == NULL) |
| return ZIP_PARAMERROR; |
| zi = (zip_internal*)file; |
| |
| if (zi->in_opened_file_inzip == 1) |
| { |
| err = zipCloseFileInZip (file); |
| } |
| |
| if (global_comment==NULL) |
| size_global_comment = 0; |
| else |
| size_global_comment = strlen(global_comment); |
| |
| |
| centraldir_pos_inzip = ftell(zi->filezip); |
| 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 (fwrite(ldi->data,(uInt)ldi->filled_in_this_block, |
| 1,zi->filezip) !=1 ) |
| err = ZIP_ERRNO; |
| |
| size_centraldir += ldi->filled_in_this_block; |
| ldi = ldi->next_datablock; |
| } |
| } |
| free_datablock(zi->central_dir.first_block); |
| |
| if (err==ZIP_OK) /* Magic End */ |
| err = ziplocal_putValue(zi->filezip,(uLong)ENDHEADERMAGIC,4); |
| |
| if (err==ZIP_OK) /* number of this disk */ |
| err = ziplocal_putValue(zi->filezip,(uLong)0,2); |
| |
| if (err==ZIP_OK) /* number of the disk with the start of the central directory */ |
| err = ziplocal_putValue(zi->filezip,(uLong)0,2); |
| |
| if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2); |
| |
| if (err==ZIP_OK) /* total number of entries in the central dir */ |
| err = ziplocal_putValue(zi->filezip,(uLong)zi->number_entry,2); |
| |
| if (err==ZIP_OK) /* size of the central directory */ |
| err = ziplocal_putValue(zi->filezip,(uLong)size_centraldir,4); |
| |
| if (err==ZIP_OK) /* offset of start of central directory with respect to the |
| starting disk number */ |
| err = ziplocal_putValue(zi->filezip,(uLong)centraldir_pos_inzip ,4); |
| |
| if (err==ZIP_OK) /* zipfile comment length */ |
| err = ziplocal_putValue(zi->filezip,(uLong)size_global_comment,2); |
| |
| if ((err==ZIP_OK) && (size_global_comment>0)) |
| if (fwrite(global_comment,(uInt)size_global_comment,1,zi->filezip) !=1 ) |
| err = ZIP_ERRNO; |
| fclose(zi->filezip); |
| TRYFREE(zi); |
| |
| return err; |
| } |
