0,0 → 1,1219 |
/* zip.c -- IO on .zip files using zlib |
Version 1.01e, February 12th, 2005 |
|
27 Dec 2004 Rolf Kalbermatter |
Modification to zipOpen2 to support globalComment retrieval. |
|
Copyright (C) 1998-2005 Gilles Vollant |
|
Read zip.h for more info |
*/ |
|
|
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
#include <time.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 */ |
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#ifndef VERSIONMADEBY |
# define VERSIONMADEBY (0x0) /* platform depedent */ |
#endif |
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#ifndef Z_BUFSIZE |
#define Z_BUFSIZE (16384) |
#endif |
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#ifndef Z_MAXFILENAMEINZIP |
#define Z_MAXFILENAMEINZIP (256) |
#endif |
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#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.... */ |
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#ifndef SEEK_CUR |
#define SEEK_CUR 1 |
#endif |
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#ifndef SEEK_END |
#define SEEK_END 2 |
#endif |
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#ifndef SEEK_SET |
#define SEEK_SET 0 |
#endif |
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#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"; |
|
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#define SIZEDATA_INDATABLOCK (4096-(4*4)) |
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#define LOCALHEADERMAGIC (0x04034b50) |
#define CENTRALHEADERMAGIC (0x02014b50) |
#define ENDHEADERMAGIC (0x06054b50) |
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#define FLAG_LOCALHEADER_OFFSET (0x06) |
#define CRC_LOCALHEADER_OFFSET (0x0e) |
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#define SIZECENTRALHEADER (0x2e) /* 46 */ |
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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 */ |
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int method; /* compression method of file currenty 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; |
#ifndef NOCRYPT |
unsigned long keys[3]; /* keys defining the pseudo-random sequence */ |
const unsigned long* pcrc_32_tab; |
int crypt_header_size; |
#endif |
} curfile_info; |
|
typedef struct |
{ |
zlib_filefunc_def z_filefunc; |
voidpf filestream; /* io structore 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.*/ |
curfile_info ci; /* info on the file curretly writing */ |
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uLong begin_pos; /* position of the beginning of the zipfile */ |
uLong add_position_when_writting_offset; |
uLong number_entry; |
#ifndef NO_ADDFILEINEXISTINGZIP |
char *globalcomment; |
#endif |
} zip_internal; |
|
|
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#ifndef NOCRYPT |
#define INCLUDECRYPTINGCODE_IFCRYPTALLOWED |
#include "crypt.h" |
#endif |
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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; |
} |
|
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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; |
} |
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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; |
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to_copy = &(ldi->data[ldi->filled_in_this_block]); |
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for (i=0;i<copy_this;i++) |
*(to_copy+i)=*(from_copy+i); |
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ldi->filled_in_this_block += copy_this; |
ldi->avail_in_this_block -= copy_this; |
from_copy += copy_this ; |
len -= copy_this; |
} |
return ZIP_OK; |
} |
|
|
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/****************************************************************************/ |
|
#ifndef NO_ADDFILEINEXISTINGZIP |
/* =========================================================================== |
Inputs a long in LSB order to the given file |
nbByte == 1, 2 or 4 (byte, short or long) |
*/ |
|
local int ziplocal_putValue OF((const zlib_filefunc_def* pzlib_filefunc_def, |
voidpf filestream, uLong x, int nbByte)); |
local int ziplocal_putValue (pzlib_filefunc_def, filestream, x, nbByte) |
const zlib_filefunc_def* pzlib_filefunc_def; |
voidpf filestream; |
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 (x != 0) |
{ /* data overflow - hack for ZIP64 (X Roche) */ |
for (n = 0; n < nbByte; n++) |
{ |
buf[n] = 0xff; |
} |
} |
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if (ZWRITE(*pzlib_filefunc_def,filestream,buf,nbByte)!=(uLong)nbByte) |
return ZIP_ERRNO; |
else |
return ZIP_OK; |
} |
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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; |
} |
|
if (x != 0) |
{ /* data overflow - hack for ZIP64 */ |
for (n = 0; n < nbByte; n++) |
{ |
buf[n] = 0xff; |
} |
} |
} |
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/****************************************************************************/ |
|
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local uLong ziplocal_TmzDateToDosDate(ptm,dosDate) |
const 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)); |
} |
|
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/****************************************************************************/ |
|
local int ziplocal_getByte OF(( |
const zlib_filefunc_def* pzlib_filefunc_def, |
voidpf filestream, |
int *pi)); |
|
local int ziplocal_getByte(pzlib_filefunc_def,filestream,pi) |
const zlib_filefunc_def* pzlib_filefunc_def; |
voidpf filestream; |
int *pi; |
{ |
unsigned char c; |
int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1); |
if (err==1) |
{ |
*pi = (int)c; |
return ZIP_OK; |
} |
else |
{ |
if (ZERROR(*pzlib_filefunc_def,filestream)) |
return ZIP_ERRNO; |
else |
return ZIP_EOF; |
} |
} |
|
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/* =========================================================================== |
Reads a long in LSB order from the given gz_stream. Sets |
*/ |
local int ziplocal_getShort OF(( |
const zlib_filefunc_def* pzlib_filefunc_def, |
voidpf filestream, |
uLong *pX)); |
|
local int ziplocal_getShort (pzlib_filefunc_def,filestream,pX) |
const zlib_filefunc_def* pzlib_filefunc_def; |
voidpf filestream; |
uLong *pX; |
{ |
uLong x ; |
int i; |
int err; |
|
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); |
x = (uLong)i; |
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if (err==ZIP_OK) |
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); |
x += ((uLong)i)<<8; |
|
if (err==ZIP_OK) |
*pX = x; |
else |
*pX = 0; |
return err; |
} |
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local int ziplocal_getLong OF(( |
const zlib_filefunc_def* pzlib_filefunc_def, |
voidpf filestream, |
uLong *pX)); |
|
local int ziplocal_getLong (pzlib_filefunc_def,filestream,pX) |
const zlib_filefunc_def* pzlib_filefunc_def; |
voidpf filestream; |
uLong *pX; |
{ |
uLong x ; |
int i; |
int err; |
|
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); |
x = (uLong)i; |
|
if (err==ZIP_OK) |
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); |
x += ((uLong)i)<<8; |
|
if (err==ZIP_OK) |
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); |
x += ((uLong)i)<<16; |
|
if (err==ZIP_OK) |
err = ziplocal_getByte(pzlib_filefunc_def,filestream,&i); |
x += ((uLong)i)<<24; |
|
if (err==ZIP_OK) |
*pX = x; |
else |
*pX = 0; |
return err; |
} |
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#ifndef BUFREADCOMMENT |
#define BUFREADCOMMENT (0x400) |
#endif |
/* |
Locate the Central directory of a zipfile (at the end, just before |
the global comment) |
*/ |
local uLong ziplocal_SearchCentralDir OF(( |
const zlib_filefunc_def* pzlib_filefunc_def, |
voidpf filestream)); |
|
local uLong ziplocal_SearchCentralDir(pzlib_filefunc_def,filestream) |
const zlib_filefunc_def* pzlib_filefunc_def; |
voidpf filestream; |
{ |
unsigned char* buf; |
uLong uSizeFile; |
uLong uBackRead; |
uLong uMaxBack=0xffff; /* maximum size of global comment */ |
uLong uPosFound=0; |
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if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0) |
return 0; |
|
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uSizeFile = ZTELL(*pzlib_filefunc_def,filestream); |
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if (uMaxBack>uSizeFile) |
uMaxBack = uSizeFile; |
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buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4); |
if (buf==NULL) |
return 0; |
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uBackRead = 4; |
while (uBackRead<uMaxBack) |
{ |
uLong uReadSize,uReadPos ; |
int i; |
if (uBackRead+BUFREADCOMMENT>uMaxBack) |
uBackRead = uMaxBack; |
else |
uBackRead+=BUFREADCOMMENT; |
uReadPos = uSizeFile-uBackRead ; |
|
uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ? |
(BUFREADCOMMENT+4) : (uSizeFile-uReadPos); |
if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
break; |
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if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize) |
break; |
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for (i=(int)uReadSize-3; (i--)>0;) |
if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) && |
((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06)) |
{ |
uPosFound = uReadPos+i; |
break; |
} |
|
if (uPosFound!=0) |
break; |
} |
TRYFREE(buf); |
return uPosFound; |
} |
#endif /* !NO_ADDFILEINEXISTINGZIP*/ |
|
/************************************************************/ |
extern zipFile ZEXPORT zipOpen2 (pathname, append, globalcomment, pzlib_filefunc_def) |
const char *pathname; |
int append; |
zipcharpc* globalcomment; |
zlib_filefunc_def* pzlib_filefunc_def; |
{ |
zip_internal ziinit; |
zip_internal* zi; |
int err=ZIP_OK; |
|
|
if (pzlib_filefunc_def==NULL) |
fill_fopen_filefunc(&ziinit.z_filefunc); |
else |
ziinit.z_filefunc = *pzlib_filefunc_def; |
|
ziinit.filestream = (*(ziinit.z_filefunc.zopen_file)) |
(ziinit.z_filefunc.opaque, |
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; |
ziinit.begin_pos = ZTELL(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 = (zip_internal*)ALLOC(sizeof(zip_internal)); |
if (zi==NULL) |
{ |
ZCLOSE(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) |
{ |
uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/ |
|
uLong size_central_dir; /* size of the central directory */ |
uLong offset_central_dir; /* offset of start of central directory */ |
uLong central_pos,uL; |
|
uLong number_disk; /* number of the current dist, used for |
spaning ZIP, unsupported, always 0*/ |
uLong number_disk_with_CD; /* number the the disk with central dir, used |
for spaning ZIP, unsupported, always 0*/ |
uLong number_entry; |
uLong number_entry_CD; /* total number of entries in |
the central dir |
(same than number_entry on nospan) */ |
uLong size_comment; |
|
central_pos = ziplocal_SearchCentralDir(&ziinit.z_filefunc,ziinit.filestream); |
if (central_pos==0) |
err=ZIP_ERRNO; |
|
if (ZSEEK(ziinit.z_filefunc, ziinit.filestream, |
central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0) |
err=ZIP_ERRNO; |
|
/* the signature, already checked */ |
if (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&uL)!=ZIP_OK) |
err=ZIP_ERRNO; |
|
/* number of this disk */ |
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk)!=ZIP_OK) |
err=ZIP_ERRNO; |
|
/* number of the disk with the start of the central directory */ |
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_disk_with_CD)!=ZIP_OK) |
err=ZIP_ERRNO; |
|
/* total number of entries in the central dir on this disk */ |
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.filestream,&number_entry)!=ZIP_OK) |
err=ZIP_ERRNO; |
|
/* total number of entries in the central dir */ |
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.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 (ziplocal_getLong(&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 (ziplocal_getLong(&ziinit.z_filefunc, ziinit.filestream,&offset_central_dir)!=ZIP_OK) |
err=ZIP_ERRNO; |
|
/* zipfile global comment length */ |
if (ziplocal_getShort(&ziinit.z_filefunc, ziinit.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) |
{ |
ZCLOSE(ziinit.z_filefunc, ziinit.filestream); |
return NULL; |
} |
|
if (size_comment>0) |
{ |
ziinit.globalcomment = ALLOC(size_comment+1); |
if (ziinit.globalcomment) |
{ |
size_comment = ZREAD(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; |
|
{ |
uLong size_central_dir_to_read = size_central_dir; |
size_t buf_size = SIZEDATA_INDATABLOCK; |
void* buf_read = (void*)ALLOC(buf_size); |
if (ZSEEK(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)) |
{ |
uLong read_this = SIZEDATA_INDATABLOCK; |
if (read_this > size_central_dir_to_read) |
read_this = size_central_dir_to_read; |
if (ZREAD(ziinit.z_filefunc, ziinit.filestream,buf_read,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 (ZSEEK(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 /* !NO_ADDFILEINEXISTINGZIP*/ |
|
if (err != ZIP_OK) |
{ |
# ifndef NO_ADDFILEINEXISTINGZIP |
TRYFREE(ziinit.globalcomment); |
# endif /* !NO_ADDFILEINEXISTINGZIP*/ |
TRYFREE(zi); |
return NULL; |
} |
else |
{ |
*zi = ziinit; |
return (zipFile)zi; |
} |
} |
|
extern zipFile ZEXPORT zipOpen (pathname, append) |
const char *pathname; |
int append; |
{ |
return zipOpen2(pathname,append,NULL,NULL); |
} |
|
extern int ZEXPORT zipOpenNewFileInZip3 (file, filename, zipfi, |
extrafield_local, size_extrafield_local, |
extrafield_global, size_extrafield_global, |
comment, method, level, raw, |
windowBits, memLevel, strategy, |
password, crcForCrypting) |
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; |
{ |
zip_internal* zi; |
uInt size_filename; |
uInt size_comment; |
uInt i; |
int err = ZIP_OK; |
|
# ifdef NOCRYPT |
if (password != NULL) |
return ZIP_PARAMERROR; |
# endif |
|
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 = (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 = 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; |
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 = ZTELL(zi->z_filefunc,zi->filestream) ; |
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- 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; |
|
/* write the local header */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)LOCALHEADERMAGIC,4); |
|
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)20,2);/* version needed to extract */ |
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.flag,2); |
|
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.method,2); |
|
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->ci.dosDate,4); |
|
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* crc 32, unknown */ |
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* compressed size, unknown */ |
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,4); /* uncompressed size, unknown */ |
|
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_filename,2); |
|
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_extrafield_local,2); |
|
if ((err==ZIP_OK) && (size_filename>0)) |
if (ZWRITE(zi->z_filefunc,zi->filestream,filename,size_filename)!=size_filename) |
err = ZIP_ERRNO; |
|
if ((err==ZIP_OK) && (size_extrafield_local>0)) |
if (ZWRITE(zi->z_filefunc,zi->filestream,extrafield_local,size_extrafield_local) |
!=size_extrafield_local) |
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.raw)) |
{ |
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 = 1; |
} |
# 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 (ZWRITE(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 zipOpenNewFileInZip2(file, filename, zipfi, |
extrafield_local, size_extrafield_local, |
extrafield_global, size_extrafield_global, |
comment, method, level, raw) |
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 zipOpenNewFileInZip3 (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); |
} |
|
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; |
{ |
return zipOpenNewFileInZip2 (file, filename, zipfi, |
extrafield_local, size_extrafield_local, |
extrafield_global, size_extrafield_global, |
comment, method, level, 0); |
} |
|
local int zipFlushWriteBuffer(zi) |
zip_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 (ZWRITE(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.pos_in_buffered_data = 0; |
return err; |
} |
|
extern int ZEXPORT zipWriteInFileInZip (file, buf, len) |
zipFile file; |
const void* 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 = (void*)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 (zipFlushWriteBuffer(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; |
} |
} |
} |
|
return err; |
} |
|
extern int ZEXPORT zipCloseFileInZipRaw (file, uncompressed_size, crc32) |
zipFile file; |
uLong uncompressed_size; |
uLong crc32; |
{ |
zip_internal* zi; |
uLong compressed_size; |
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) && (!zi->ci.raw)) |
while (err==ZIP_OK) |
{ |
uLong uTotalOutBefore; |
if (zi->ci.stream.avail_out == 0) |
{ |
if (zipFlushWriteBuffer(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) ; |
} |
|
if (err==Z_STREAM_END) |
err=ZIP_OK; /* this is normal */ |
|
if ((zi->ci.pos_in_buffered_data>0) && (err==ZIP_OK)) |
if (zipFlushWriteBuffer(zi)==ZIP_ERRNO) |
err = ZIP_ERRNO; |
|
if ((zi->ci.method == Z_DEFLATED) && (!zi->ci.raw)) |
{ |
err=deflateEnd(&zi->ci.stream); |
zi->ci.stream_initialised = 0; |
} |
|
if (!zi->ci.raw) |
{ |
crc32 = (uLong)zi->ci.crc32; |
uncompressed_size = (uLong)zi->ci.stream.total_in; |
} |
compressed_size = (uLong)zi->ci.stream.total_out; |
# ifndef NOCRYPT |
compressed_size += zi->ci.crypt_header_size; |
# endif |
|
ziplocal_putValue_inmemory(zi->ci.central_header+16,crc32,4); /*crc*/ |
ziplocal_putValue_inmemory(zi->ci.central_header+20, |
compressed_size,4); /*compr size*/ |
if (zi->ci.stream.data_type == Z_ASCII) |
ziplocal_putValue_inmemory(zi->ci.central_header+36,(uLong)Z_ASCII,2); |
ziplocal_putValue_inmemory(zi->ci.central_header+24, |
uncompressed_size,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 = ZTELL(zi->z_filefunc,zi->filestream); |
if (ZSEEK(zi->z_filefunc,zi->filestream, |
zi->ci.pos_local_header + 14,ZLIB_FILEFUNC_SEEK_SET)!=0) |
err = ZIP_ERRNO; |
|
if (err==ZIP_OK) |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,crc32,4); /* crc 32, unknown */ |
|
if (err==ZIP_OK) /* compressed size, unknown */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,compressed_size,4); |
|
if (err==ZIP_OK) /* uncompressed size, unknown */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,uncompressed_size,4); |
|
if (ZSEEK(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 (file) |
zipFile file; |
{ |
return zipCloseFileInZipRaw (file,0,0); |
} |
|
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); |
} |
|
#ifndef NO_ADDFILEINEXISTINGZIP |
if (global_comment==NULL) |
global_comment = zi->globalcomment; |
#endif |
if (global_comment==NULL) |
size_global_comment = 0; |
else |
size_global_comment = (uInt)strlen(global_comment); |
|
centraldir_pos_inzip = ZTELL(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 (ZWRITE(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_datablock(zi->central_dir.first_block); |
|
if (err==ZIP_OK) /* Magic End */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)ENDHEADERMAGIC,4); |
|
if (err==ZIP_OK) /* number of this disk */ |
err = ziplocal_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 = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)0,2); |
|
if (err==ZIP_OK) /* total number of entries in the central dir on this disk */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); |
|
if (err==ZIP_OK) /* total number of entries in the central dir */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)zi->number_entry,2); |
|
if (err==ZIP_OK) /* size of the central directory */ |
err = ziplocal_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 */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream, |
(uLong)(centraldir_pos_inzip - zi->add_position_when_writting_offset),4); |
|
if (err==ZIP_OK) /* zipfile comment length */ |
err = ziplocal_putValue(&zi->z_filefunc,zi->filestream,(uLong)size_global_comment,2); |
|
if ((err==ZIP_OK) && (size_global_comment>0)) |
if (ZWRITE(zi->z_filefunc,zi->filestream, |
global_comment,size_global_comment) != size_global_comment) |
err = ZIP_ERRNO; |
|
if (ZCLOSE(zi->z_filefunc,zi->filestream) != 0) |
if (err == ZIP_OK) |
err = ZIP_ERRNO; |
|
#ifndef NO_ADDFILEINEXISTINGZIP |
TRYFREE(zi->globalcomment); |
#endif |
TRYFREE(zi); |
|
return err; |
} |
Property changes: |
Added: svn:executable |
+* |
\ No newline at end of property |