-/* unzip.c -- IO for uncompress .zip files using zlib\r
- Version 1.01e, February 12th, 2005\r
-\r
- Copyright (C) 1998-2005 Gilles Vollant\r
-\r
- Read unzip.h for more info\r
-*/\r
-\r
-/* Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of\r
-compatibility with older software. The following is from the original crypt.c. Code\r
-woven in by Terry Thorsen 1/2003.\r
-*/\r
-/*\r
- Copyright (c) 1990-2000 Info-ZIP. All rights reserved.\r
-\r
- See the accompanying file LICENSE, version 2000-Apr-09 or later\r
- (the contents of which are also included in zip.h) for terms of use.\r
- If, for some reason, all these files are missing, the Info-ZIP license\r
- also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html\r
-*/\r
-/*\r
- crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h]\r
-\r
- The encryption/decryption parts of this source code (as opposed to the\r
- non-echoing password parts) were originally written in Europe. The\r
- whole source package can be freely distributed, including from the USA.\r
- (Prior to January 2000, re-export from the US was a violation of US law.)\r
- */\r
-\r
-/*\r
- This encryption code is a direct transcription of the algorithm from\r
- Roger Schlafly, described by Phil Katz in the file appnote.txt. This\r
- file (appnote.txt) is distributed with the PKZIP program (even in the\r
- version without encryption capabilities).\r
- */\r
-\r
-\r
-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <string.h>\r
-#include "zlib.h"\r
-#include "unzip.h"\r
-\r
-#ifdef STDC\r
-# include <stddef.h>\r
-# include <string.h>\r
-# include <stdlib.h>\r
-#endif\r
-#ifdef NO_ERRNO_H\r
- extern int errno;\r
-#else\r
-# include <errno.h>\r
-#endif\r
-\r
-\r
-#ifndef local\r
-# define local static\r
-#endif\r
-/* compile with -Dlocal if your debugger can't find static symbols */\r
-\r
-\r
-#ifndef CASESENSITIVITYDEFAULT_NO\r
-# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)\r
-# define CASESENSITIVITYDEFAULT_NO\r
-# endif\r
-#endif\r
-\r
-\r
-#ifndef UNZ_BUFSIZE\r
-#define UNZ_BUFSIZE (16384)\r
-#endif\r
-\r
-#ifndef UNZ_MAXFILENAMEINZIP\r
-#define UNZ_MAXFILENAMEINZIP (256)\r
-#endif\r
-\r
-#ifndef ALLOC\r
-# define ALLOC(size) (malloc(size))\r
-#endif\r
-#ifndef TRYFREE\r
-# define TRYFREE(p) {if (p) free(p);}\r
-#endif\r
-\r
-#define SIZECENTRALDIRITEM (0x2e)\r
-#define SIZEZIPLOCALHEADER (0x1e)\r
-\r
-\r
-\r
-\r
-const char unz_copyright[] =\r
- " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";\r
-\r
-/* unz_file_info_interntal contain internal info about a file in zipfile*/\r
-typedef struct unz_file_info_internal_s\r
-{\r
- uLong offset_curfile;/* relative offset of local header 4 bytes */\r
-} unz_file_info_internal;\r
-\r
-\r
-/* file_in_zip_read_info_s contain internal information about a file in zipfile,\r
- when reading and decompress it */\r
-typedef struct\r
-{\r
- char *read_buffer; /* internal buffer for compressed data */\r
- z_stream stream; /* zLib stream structure for inflate */\r
-\r
- uLong pos_in_zipfile; /* position in byte on the zipfile, for fseek*/\r
- uLong stream_initialised; /* flag set if stream structure is initialised*/\r
-\r
- uLong offset_local_extrafield;/* offset of the local extra field */\r
- uInt size_local_extrafield;/* size of the local extra field */\r
- uLong pos_local_extrafield; /* position in the local extra field in read*/\r
-\r
- uLong crc32; /* crc32 of all data uncompressed */\r
- uLong crc32_wait; /* crc32 we must obtain after decompress all */\r
- uLong rest_read_compressed; /* number of byte to be decompressed */\r
- uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/\r
- zlib_filefunc_def z_filefunc;\r
- voidpf filestream; /* io structore of the zipfile */\r
- uLong compression_method; /* compression method (0==store) */\r
- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/\r
- int raw;\r
-} file_in_zip_read_info_s;\r
-\r
-\r
-/* unz_s contain internal information about the zipfile\r
-*/\r
-typedef struct\r
-{\r
- zlib_filefunc_def z_filefunc;\r
- voidpf filestream; /* io structore of the zipfile */\r
- unz_global_info gi; /* public global information */\r
- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/\r
- uLong num_file; /* number of the current file in the zipfile*/\r
- uLong pos_in_central_dir; /* pos of the current file in the central dir*/\r
- uLong current_file_ok; /* flag about the usability of the current file*/\r
- uLong central_pos; /* position of the beginning of the central dir*/\r
-\r
- uLong size_central_dir; /* size of the central directory */\r
- uLong offset_central_dir; /* offset of start of central directory with\r
- respect to the starting disk number */\r
-\r
- unz_file_info cur_file_info; /* public info about the current file in zip*/\r
- unz_file_info_internal cur_file_info_internal; /* private info about it*/\r
- file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current\r
- file if we are decompressing it */\r
- int encrypted;\r
-# ifndef NOUNCRYPT\r
- unsigned long keys[3]; /* keys defining the pseudo-random sequence */\r
- const unsigned long* pcrc_32_tab;\r
-# endif\r
-} unz_s;\r
-\r
-\r
-#ifndef NOUNCRYPT\r
-#include "crypt.h"\r
-#endif\r
-\r
-/* ===========================================================================\r
- Read a byte from a gz_stream; update next_in and avail_in. Return EOF\r
- for end of file.\r
- IN assertion: the stream s has been sucessfully opened for reading.\r
-*/\r
-\r
-\r
-local int unzlocal_getByte OF((\r
- const zlib_filefunc_def* pzlib_filefunc_def,\r
- voidpf filestream,\r
- int *pi));\r
-\r
-local int unzlocal_getByte(pzlib_filefunc_def,filestream,pi)\r
- const zlib_filefunc_def* pzlib_filefunc_def;\r
- voidpf filestream;\r
- int *pi;\r
-{\r
- unsigned char c;\r
- int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&c,1);\r
- if (err==1)\r
- {\r
- *pi = (int)c;\r
- return UNZ_OK;\r
- }\r
- else\r
- {\r
- if (ZERROR(*pzlib_filefunc_def,filestream))\r
- return UNZ_ERRNO;\r
- else\r
- return UNZ_EOF;\r
- }\r
-}\r
-\r
-\r
-/* ===========================================================================\r
- Reads a long in LSB order from the given gz_stream. Sets\r
-*/\r
-local int unzlocal_getShort OF((\r
- const zlib_filefunc_def* pzlib_filefunc_def,\r
- voidpf filestream,\r
- uLong *pX));\r
-\r
-local int unzlocal_getShort (pzlib_filefunc_def,filestream,pX)\r
- const zlib_filefunc_def* pzlib_filefunc_def;\r
- voidpf filestream;\r
- uLong *pX;\r
-{\r
- uLong x ;\r
- int i;\r
- int err;\r
-\r
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);\r
- x = (uLong)i;\r
-\r
- if (err==UNZ_OK)\r
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);\r
- x += ((uLong)i)<<8;\r
-\r
- if (err==UNZ_OK)\r
- *pX = x;\r
- else\r
- *pX = 0;\r
- return err;\r
-}\r
-\r
-local int unzlocal_getLong OF((\r
- const zlib_filefunc_def* pzlib_filefunc_def,\r
- voidpf filestream,\r
- uLong *pX));\r
-\r
-local int unzlocal_getLong (pzlib_filefunc_def,filestream,pX)\r
- const zlib_filefunc_def* pzlib_filefunc_def;\r
- voidpf filestream;\r
- uLong *pX;\r
-{\r
- uLong x ;\r
- int i;\r
- int err;\r
-\r
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);\r
- x = (uLong)i;\r
-\r
- if (err==UNZ_OK)\r
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);\r
- x += ((uLong)i)<<8;\r
-\r
- if (err==UNZ_OK)\r
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);\r
- x += ((uLong)i)<<16;\r
-\r
- if (err==UNZ_OK)\r
- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);\r
- x += ((uLong)i)<<24;\r
-\r
- if (err==UNZ_OK)\r
- *pX = x;\r
- else\r
- *pX = 0;\r
- return err;\r
-}\r
-\r
-\r
-/* My own strcmpi / strcasecmp */\r
-local int strcmpcasenosensitive_internal (fileName1,fileName2)\r
- const char* fileName1;\r
- const char* fileName2;\r
-{\r
- for (;;)\r
- {\r
- char c1=*(fileName1++);\r
- char c2=*(fileName2++);\r
- if ((c1>='a') && (c1<='z'))\r
- c1 -= 0x20;\r
- if ((c2>='a') && (c2<='z'))\r
- c2 -= 0x20;\r
- if (c1=='\0')\r
- return ((c2=='\0') ? 0 : -1);\r
- if (c2=='\0')\r
- return 1;\r
- if (c1<c2)\r
- return -1;\r
- if (c1>c2)\r
- return 1;\r
- }\r
-}\r
-\r
-\r
-#ifdef CASESENSITIVITYDEFAULT_NO\r
-#define CASESENSITIVITYDEFAULTVALUE 2\r
-#else\r
-#define CASESENSITIVITYDEFAULTVALUE 1\r
-#endif\r
-\r
-#ifndef STRCMPCASENOSENTIVEFUNCTION\r
-#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal\r
-#endif\r
-\r
-/*\r
- Compare two filename (fileName1,fileName2).\r
- If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)\r
- If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi\r
- or strcasecmp)\r
- If iCaseSenisivity = 0, case sensitivity is defaut of your operating system\r
- (like 1 on Unix, 2 on Windows)\r
-\r
-*/\r
-extern int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivity)\r
- const char* fileName1;\r
- const char* fileName2;\r
- int iCaseSensitivity;\r
-{\r
- if (iCaseSensitivity==0)\r
- iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;\r
-\r
- if (iCaseSensitivity==1)\r
- return strcmp(fileName1,fileName2);\r
-\r
- return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);\r
-}\r
-\r
-#ifndef BUFREADCOMMENT\r
-#define BUFREADCOMMENT (0x400)\r
-#endif\r
-\r
-/*\r
- Locate the Central directory of a zipfile (at the end, just before\r
- the global comment)\r
-*/\r
-local uLong unzlocal_SearchCentralDir OF((\r
- const zlib_filefunc_def* pzlib_filefunc_def,\r
- voidpf filestream));\r
-\r
-local uLong unzlocal_SearchCentralDir(pzlib_filefunc_def,filestream)\r
- const zlib_filefunc_def* pzlib_filefunc_def;\r
- voidpf filestream;\r
-{\r
- unsigned char* buf;\r
- uLong uSizeFile;\r
- uLong uBackRead;\r
- uLong uMaxBack=0xffff; /* maximum size of global comment */\r
- uLong uPosFound=0;\r
-\r
- if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)\r
- return 0;\r
-\r
-\r
- uSizeFile = ZTELL(*pzlib_filefunc_def,filestream);\r
-\r
- if (uMaxBack>uSizeFile)\r
- uMaxBack = uSizeFile;\r
-\r
- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);\r
- if (buf==NULL)\r
- return 0;\r
-\r
- uBackRead = 4;\r
- while (uBackRead<uMaxBack)\r
- {\r
- uLong uReadSize,uReadPos ;\r
- int i;\r
- if (uBackRead+BUFREADCOMMENT>uMaxBack)\r
- uBackRead = uMaxBack;\r
- else\r
- uBackRead+=BUFREADCOMMENT;\r
- uReadPos = uSizeFile-uBackRead ;\r
-\r
- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?\r
- (BUFREADCOMMENT+4) : (uSizeFile-uReadPos);\r
- if (ZSEEK(*pzlib_filefunc_def,filestream,uReadPos,ZLIB_FILEFUNC_SEEK_SET)!=0)\r
- break;\r
-\r
- if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)\r
- break;\r
-\r
- for (i=(int)uReadSize-3; (i--)>0;)\r
- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&\r
- ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))\r
- {\r
- uPosFound = uReadPos+i;\r
- break;\r
- }\r
-\r
- if (uPosFound!=0)\r
- break;\r
- }\r
- TRYFREE(buf);\r
- return uPosFound;\r
-}\r
-\r
-/*\r
- Open a Zip file. path contain the full pathname (by example,\r
- on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer\r
- "zlib/zlib114.zip".\r
- If the zipfile cannot be opened (file doesn't exist or in not valid), the\r
- return value is NULL.\r
- Else, the return value is a unzFile Handle, usable with other function\r
- of this unzip package.\r
-*/\r
-extern unzFile ZEXPORT unzOpen2 (path, pzlib_filefunc_def)\r
- const char *path;\r
- zlib_filefunc_def* pzlib_filefunc_def;\r
-{\r
- unz_s us;\r
- unz_s *s;\r
- uLong central_pos,uL;\r
-\r
- uLong number_disk; /* number of the current dist, used for\r
- spaning ZIP, unsupported, always 0*/\r
- uLong number_disk_with_CD; /* number the the disk with central dir, used\r
- for spaning ZIP, unsupported, always 0*/\r
- uLong number_entry_CD; /* total number of entries in\r
- the central dir\r
- (same than number_entry on nospan) */\r
-\r
- int err=UNZ_OK;\r
-\r
- if (unz_copyright[0]!=' ')\r
- return NULL;\r
-\r
- if (pzlib_filefunc_def==NULL)\r
- fill_fopen_filefunc(&us.z_filefunc);\r
- else\r
- us.z_filefunc = *pzlib_filefunc_def;\r
-\r
- us.filestream= (*(us.z_filefunc.zopen_file))(us.z_filefunc.opaque,\r
- path,\r
- ZLIB_FILEFUNC_MODE_READ |\r
- ZLIB_FILEFUNC_MODE_EXISTING);\r
- if (us.filestream==NULL)\r
- return NULL;\r
-\r
- central_pos = unzlocal_SearchCentralDir(&us.z_filefunc,us.filestream);\r
- if (central_pos==0)\r
- err=UNZ_ERRNO;\r
-\r
- if (ZSEEK(us.z_filefunc, us.filestream,\r
- central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)\r
- err=UNZ_ERRNO;\r
-\r
- /* the signature, already checked */\r
- if (unzlocal_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- /* number of this disk */\r
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- /* number of the disk with the start of the central directory */\r
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- /* total number of entries in the central dir on this disk */\r
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- /* total number of entries in the central dir */\r
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if ((number_entry_CD!=us.gi.number_entry) ||\r
- (number_disk_with_CD!=0) ||\r
- (number_disk!=0))\r
- err=UNZ_BADZIPFILE;\r
-\r
- /* size of the central directory */\r
- if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- /* offset of start of central directory with respect to the\r
- starting disk number */\r
- if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- /* zipfile comment length */\r
- if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if ((central_pos<us.offset_central_dir+us.size_central_dir) &&\r
- (err==UNZ_OK))\r
- err=UNZ_BADZIPFILE;\r
-\r
- if (err!=UNZ_OK)\r
- {\r
- ZCLOSE(us.z_filefunc, us.filestream);\r
- return NULL;\r
- }\r
-\r
- us.byte_before_the_zipfile = central_pos -\r
- (us.offset_central_dir+us.size_central_dir);\r
- us.central_pos = central_pos;\r
- us.pfile_in_zip_read = NULL;\r
- us.encrypted = 0;\r
-\r
-\r
- s=(unz_s*)ALLOC(sizeof(unz_s));\r
- *s=us;\r
- unzGoToFirstFile((unzFile)s);\r
- return (unzFile)s;\r
-}\r
-\r
-\r
-extern unzFile ZEXPORT unzOpen (path)\r
- const char *path;\r
-{\r
- return unzOpen2(path, NULL);\r
-}\r
-\r
-/*\r
- Close a ZipFile opened with unzipOpen.\r
- If there is files inside the .Zip opened with unzipOpenCurrentFile (see later),\r
- these files MUST be closed with unzipCloseCurrentFile before call unzipClose.\r
- return UNZ_OK if there is no problem. */\r
-extern int ZEXPORT unzClose (file)\r
- unzFile file;\r
-{\r
- unz_s* s;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
-\r
- if (s->pfile_in_zip_read!=NULL)\r
- unzCloseCurrentFile(file);\r
-\r
- ZCLOSE(s->z_filefunc, s->filestream);\r
- TRYFREE(s);\r
- return UNZ_OK;\r
-}\r
-\r
-\r
-/*\r
- Write info about the ZipFile in the *pglobal_info structure.\r
- No preparation of the structure is needed\r
- return UNZ_OK if there is no problem. */\r
-extern int ZEXPORT unzGetGlobalInfo (file,pglobal_info)\r
- unzFile file;\r
- unz_global_info *pglobal_info;\r
-{\r
- unz_s* s;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- *pglobal_info=s->gi;\r
- return UNZ_OK;\r
-}\r
-\r
-\r
-/*\r
- Translate date/time from Dos format to tm_unz (readable more easilty)\r
-*/\r
-local void unzlocal_DosDateToTmuDate (ulDosDate, ptm)\r
- uLong ulDosDate;\r
- tm_unz* ptm;\r
-{\r
- uLong uDate;\r
- uDate = (uLong)(ulDosDate>>16);\r
- ptm->tm_mday = (uInt)(uDate&0x1f) ;\r
- ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;\r
- ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;\r
-\r
- ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);\r
- ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ;\r
- ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ;\r
-}\r
-\r
-/*\r
- Get Info about the current file in the zipfile, with internal only info\r
-*/\r
-local int unzlocal_GetCurrentFileInfoInternal OF((unzFile file,\r
- unz_file_info *pfile_info,\r
- unz_file_info_internal\r
- *pfile_info_internal,\r
- char *szFileName,\r
- uLong fileNameBufferSize,\r
- void *extraField,\r
- uLong extraFieldBufferSize,\r
- char *szComment,\r
- uLong commentBufferSize));\r
-\r
-local int unzlocal_GetCurrentFileInfoInternal (file,\r
- pfile_info,\r
- pfile_info_internal,\r
- szFileName, fileNameBufferSize,\r
- extraField, extraFieldBufferSize,\r
- szComment, commentBufferSize)\r
- unzFile file;\r
- unz_file_info *pfile_info;\r
- unz_file_info_internal *pfile_info_internal;\r
- char *szFileName;\r
- uLong fileNameBufferSize;\r
- void *extraField;\r
- uLong extraFieldBufferSize;\r
- char *szComment;\r
- uLong commentBufferSize;\r
-{\r
- unz_s* s;\r
- unz_file_info file_info;\r
- unz_file_info_internal file_info_internal;\r
- int err=UNZ_OK;\r
- uLong uMagic;\r
- long lSeek=0;\r
-\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- if (ZSEEK(s->z_filefunc, s->filestream,\r
- s->pos_in_central_dir+s->byte_before_the_zipfile,\r
- ZLIB_FILEFUNC_SEEK_SET)!=0)\r
- err=UNZ_ERRNO;\r
-\r
-\r
- /* we check the magic */\r
- if (err==UNZ_OK)\r
- {\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
- else if (uMagic!=0x02014b50)\r
- err=UNZ_BADZIPFILE;\r
- }\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- lSeek+=file_info.size_filename;\r
- if ((err==UNZ_OK) && (szFileName!=NULL))\r
- {\r
- uLong uSizeRead ;\r
- if (file_info.size_filename<fileNameBufferSize)\r
- {\r
- *(szFileName+file_info.size_filename)='\0';\r
- uSizeRead = file_info.size_filename;\r
- }\r
- else\r
- uSizeRead = fileNameBufferSize;\r
-\r
- if ((file_info.size_filename>0) && (fileNameBufferSize>0))\r
- if (ZREAD(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)\r
- err=UNZ_ERRNO;\r
- lSeek -= uSizeRead;\r
- }\r
-\r
-\r
- if ((err==UNZ_OK) && (extraField!=NULL))\r
- {\r
- uLong uSizeRead ;\r
- if (file_info.size_file_extra<extraFieldBufferSize)\r
- uSizeRead = file_info.size_file_extra;\r
- else\r
- uSizeRead = extraFieldBufferSize;\r
-\r
- if (lSeek!=0)\r
- {\r
- if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)\r
- lSeek=0;\r
- else\r
- err=UNZ_ERRNO;\r
- }\r
- if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))\r
- if (ZREAD(s->z_filefunc, s->filestream,extraField,uSizeRead)!=uSizeRead)\r
- err=UNZ_ERRNO;\r
- lSeek += file_info.size_file_extra - uSizeRead;\r
- }\r
- else\r
- lSeek+=file_info.size_file_extra;\r
-\r
-\r
- if ((err==UNZ_OK) && (szComment!=NULL))\r
- {\r
- uLong uSizeRead ;\r
- if (file_info.size_file_comment<commentBufferSize)\r
- {\r
- *(szComment+file_info.size_file_comment)='\0';\r
- uSizeRead = file_info.size_file_comment;\r
- }\r
- else\r
- uSizeRead = commentBufferSize;\r
-\r
- if (lSeek!=0)\r
- {\r
- if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)\r
- lSeek=0;\r
- else\r
- err=UNZ_ERRNO;\r
- }\r
- if ((file_info.size_file_comment>0) && (commentBufferSize>0))\r
- if (ZREAD(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)\r
- err=UNZ_ERRNO;\r
- lSeek+=file_info.size_file_comment - uSizeRead;\r
- }\r
- else\r
- lSeek+=file_info.size_file_comment;\r
-\r
- if ((err==UNZ_OK) && (pfile_info!=NULL))\r
- *pfile_info=file_info;\r
-\r
- if ((err==UNZ_OK) && (pfile_info_internal!=NULL))\r
- *pfile_info_internal=file_info_internal;\r
-\r
- return err;\r
-}\r
-\r
-\r
-\r
-/*\r
- Write info about the ZipFile in the *pglobal_info structure.\r
- No preparation of the structure is needed\r
- return UNZ_OK if there is no problem.\r
-*/\r
-extern int ZEXPORT unzGetCurrentFileInfo (file,\r
- pfile_info,\r
- szFileName, fileNameBufferSize,\r
- extraField, extraFieldBufferSize,\r
- szComment, commentBufferSize)\r
- unzFile file;\r
- unz_file_info *pfile_info;\r
- char *szFileName;\r
- uLong fileNameBufferSize;\r
- void *extraField;\r
- uLong extraFieldBufferSize;\r
- char *szComment;\r
- uLong commentBufferSize;\r
-{\r
- return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL,\r
- szFileName,fileNameBufferSize,\r
- extraField,extraFieldBufferSize,\r
- szComment,commentBufferSize);\r
-}\r
-\r
-/*\r
- Set the current file of the zipfile to the first file.\r
- return UNZ_OK if there is no problem\r
-*/\r
-extern int ZEXPORT unzGoToFirstFile (file)\r
- unzFile file;\r
-{\r
- int err=UNZ_OK;\r
- unz_s* s;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- s->pos_in_central_dir=s->offset_central_dir;\r
- s->num_file=0;\r
- err=unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,\r
- &s->cur_file_info_internal,\r
- NULL,0,NULL,0,NULL,0);\r
- s->current_file_ok = (err == UNZ_OK);\r
- return err;\r
-}\r
-\r
-/*\r
- Set the current file of the zipfile to the next file.\r
- return UNZ_OK if there is no problem\r
- return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.\r
-*/\r
-extern int ZEXPORT unzGoToNextFile (file)\r
- unzFile file;\r
-{\r
- unz_s* s;\r
- int err;\r
-\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- if (!s->current_file_ok)\r
- return UNZ_END_OF_LIST_OF_FILE;\r
- if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */\r
- if (s->num_file+1==s->gi.number_entry)\r
- return UNZ_END_OF_LIST_OF_FILE;\r
-\r
- s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +\r
- s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;\r
- s->num_file++;\r
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,\r
- &s->cur_file_info_internal,\r
- NULL,0,NULL,0,NULL,0);\r
- s->current_file_ok = (err == UNZ_OK);\r
- return err;\r
-}\r
-\r
-\r
-/*\r
- Try locate the file szFileName in the zipfile.\r
- For the iCaseSensitivity signification, see unzipStringFileNameCompare\r
-\r
- return value :\r
- UNZ_OK if the file is found. It becomes the current file.\r
- UNZ_END_OF_LIST_OF_FILE if the file is not found\r
-*/\r
-extern int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity)\r
- unzFile file;\r
- const char *szFileName;\r
- int iCaseSensitivity;\r
-{\r
- unz_s* s;\r
- int err;\r
-\r
- /* We remember the 'current' position in the file so that we can jump\r
- * back there if we fail.\r
- */\r
- unz_file_info cur_file_infoSaved;\r
- unz_file_info_internal cur_file_info_internalSaved;\r
- uLong num_fileSaved;\r
- uLong pos_in_central_dirSaved;\r
-\r
-\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
-\r
- if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)\r
- return UNZ_PARAMERROR;\r
-\r
- s=(unz_s*)file;\r
- if (!s->current_file_ok)\r
- return UNZ_END_OF_LIST_OF_FILE;\r
-\r
- /* Save the current state */\r
- num_fileSaved = s->num_file;\r
- pos_in_central_dirSaved = s->pos_in_central_dir;\r
- cur_file_infoSaved = s->cur_file_info;\r
- cur_file_info_internalSaved = s->cur_file_info_internal;\r
-\r
- err = unzGoToFirstFile(file);\r
-\r
- while (err == UNZ_OK)\r
- {\r
- char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];\r
- err = unzGetCurrentFileInfo(file,NULL,\r
- szCurrentFileName,sizeof(szCurrentFileName)-1,\r
- NULL,0,NULL,0);\r
- if (err == UNZ_OK)\r
- {\r
- if (unzStringFileNameCompare(szCurrentFileName,\r
- szFileName,iCaseSensitivity)==0)\r
- return UNZ_OK;\r
- err = unzGoToNextFile(file);\r
- }\r
- }\r
-\r
- /* We failed, so restore the state of the 'current file' to where we\r
- * were.\r
- */\r
- s->num_file = num_fileSaved ;\r
- s->pos_in_central_dir = pos_in_central_dirSaved ;\r
- s->cur_file_info = cur_file_infoSaved;\r
- s->cur_file_info_internal = cur_file_info_internalSaved;\r
- return err;\r
-}\r
-\r
-\r
-/*\r
-///////////////////////////////////////////\r
-// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net)\r
-// I need random access\r
-//\r
-// Further optimization could be realized by adding an ability\r
-// to cache the directory in memory. The goal being a single\r
-// comprehensive file read to put the file I need in a memory.\r
-*/\r
-\r
-/*\r
-typedef struct unz_file_pos_s\r
-{\r
- uLong pos_in_zip_directory; // offset in file\r
- uLong num_of_file; // # of file\r
-} unz_file_pos;\r
-*/\r
-\r
-extern int ZEXPORT unzGetFilePos(file, file_pos)\r
- unzFile file;\r
- unz_file_pos* file_pos;\r
-{\r
- unz_s* s;\r
-\r
- if (file==NULL || file_pos==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- if (!s->current_file_ok)\r
- return UNZ_END_OF_LIST_OF_FILE;\r
-\r
- file_pos->pos_in_zip_directory = s->pos_in_central_dir;\r
- file_pos->num_of_file = s->num_file;\r
-\r
- return UNZ_OK;\r
-}\r
-\r
-extern int ZEXPORT unzGoToFilePos(file, file_pos)\r
- unzFile file;\r
- unz_file_pos* file_pos;\r
-{\r
- unz_s* s;\r
- int err;\r
-\r
- if (file==NULL || file_pos==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
-\r
- /* jump to the right spot */\r
- s->pos_in_central_dir = file_pos->pos_in_zip_directory;\r
- s->num_file = file_pos->num_of_file;\r
-\r
- /* set the current file */\r
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,\r
- &s->cur_file_info_internal,\r
- NULL,0,NULL,0,NULL,0);\r
- /* return results */\r
- s->current_file_ok = (err == UNZ_OK);\r
- return err;\r
-}\r
-\r
-/*\r
-// Unzip Helper Functions - should be here?\r
-///////////////////////////////////////////\r
-*/\r
-\r
-/*\r
- Read the local header of the current zipfile\r
- Check the coherency of the local header and info in the end of central\r
- directory about this file\r
- store in *piSizeVar the size of extra info in local header\r
- (filename and size of extra field data)\r
-*/\r
-local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,\r
- poffset_local_extrafield,\r
- psize_local_extrafield)\r
- unz_s* s;\r
- uInt* piSizeVar;\r
- uLong *poffset_local_extrafield;\r
- uInt *psize_local_extrafield;\r
-{\r
- uLong uMagic,uData,uFlags;\r
- uLong size_filename;\r
- uLong size_extra_field;\r
- int err=UNZ_OK;\r
-\r
- *piSizeVar = 0;\r
- *poffset_local_extrafield = 0;\r
- *psize_local_extrafield = 0;\r
-\r
- if (ZSEEK(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +\r
- s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)\r
- return UNZ_ERRNO;\r
-\r
-\r
- if (err==UNZ_OK)\r
- {\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
- else if (uMagic!=0x04034b50)\r
- err=UNZ_BADZIPFILE;\r
- }\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-/*\r
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))\r
- err=UNZ_BADZIPFILE;\r
-*/\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))\r
- err=UNZ_BADZIPFILE;\r
-\r
- if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&\r
- (s->cur_file_info.compression_method!=Z_DEFLATED))\r
- err=UNZ_BADZIPFILE;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */\r
- err=UNZ_ERRNO;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */\r
- err=UNZ_ERRNO;\r
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) &&\r
- ((uFlags & 8)==0))\r
- err=UNZ_BADZIPFILE;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */\r
- err=UNZ_ERRNO;\r
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) &&\r
- ((uFlags & 8)==0))\r
- err=UNZ_BADZIPFILE;\r
-\r
- if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */\r
- err=UNZ_ERRNO;\r
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) &&\r
- ((uFlags & 8)==0))\r
- err=UNZ_BADZIPFILE;\r
-\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
- else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))\r
- err=UNZ_BADZIPFILE;\r
-\r
- *piSizeVar += (uInt)size_filename;\r
-\r
- if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)\r
- err=UNZ_ERRNO;\r
- *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +\r
- SIZEZIPLOCALHEADER + size_filename;\r
- *psize_local_extrafield = (uInt)size_extra_field;\r
-\r
- *piSizeVar += (uInt)size_extra_field;\r
-\r
- return err;\r
-}\r
-\r
-/*\r
- Open for reading data the current file in the zipfile.\r
- If there is no error and the file is opened, the return value is UNZ_OK.\r
-*/\r
-extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)\r
- unzFile file;\r
- int* method;\r
- int* level;\r
- int raw;\r
- const char* password;\r
-{\r
- int err=UNZ_OK;\r
- uInt iSizeVar;\r
- unz_s* s;\r
- file_in_zip_read_info_s* pfile_in_zip_read_info;\r
- uLong offset_local_extrafield; /* offset of the local extra field */\r
- uInt size_local_extrafield; /* size of the local extra field */\r
-# ifndef NOUNCRYPT\r
- char source[12];\r
-# else\r
- if (password != NULL)\r
- return UNZ_PARAMERROR;\r
-# endif\r
-\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- if (!s->current_file_ok)\r
- return UNZ_PARAMERROR;\r
-\r
- if (s->pfile_in_zip_read != NULL)\r
- unzCloseCurrentFile(file);\r
-\r
- if (unzlocal_CheckCurrentFileCoherencyHeader(s,&iSizeVar,\r
- &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)\r
- return UNZ_BADZIPFILE;\r
-\r
- pfile_in_zip_read_info = (file_in_zip_read_info_s*)\r
- ALLOC(sizeof(file_in_zip_read_info_s));\r
- if (pfile_in_zip_read_info==NULL)\r
- return UNZ_INTERNALERROR;\r
-\r
- pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);\r
- pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;\r
- pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;\r
- pfile_in_zip_read_info->pos_local_extrafield=0;\r
- pfile_in_zip_read_info->raw=raw;\r
-\r
- if (pfile_in_zip_read_info->read_buffer==NULL)\r
- {\r
- TRYFREE(pfile_in_zip_read_info);\r
- return UNZ_INTERNALERROR;\r
- }\r
-\r
- pfile_in_zip_read_info->stream_initialised=0;\r
-\r
- if (method!=NULL)\r
- *method = (int)s->cur_file_info.compression_method;\r
-\r
- if (level!=NULL)\r
- {\r
- *level = 6;\r
- switch (s->cur_file_info.flag & 0x06)\r
- {\r
- case 6 : *level = 1; break;\r
- case 4 : *level = 2; break;\r
- case 2 : *level = 9; break;\r
- }\r
- }\r
-\r
- if ((s->cur_file_info.compression_method!=0) &&\r
- (s->cur_file_info.compression_method!=Z_DEFLATED))\r
- err=UNZ_BADZIPFILE;\r
-\r
- pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;\r
- pfile_in_zip_read_info->crc32=0;\r
- pfile_in_zip_read_info->compression_method =\r
- s->cur_file_info.compression_method;\r
- pfile_in_zip_read_info->filestream=s->filestream;\r
- pfile_in_zip_read_info->z_filefunc=s->z_filefunc;\r
- pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;\r
-\r
- pfile_in_zip_read_info->stream.total_out = 0;\r
-\r
- if ((s->cur_file_info.compression_method==Z_DEFLATED) &&\r
- (!raw))\r
- {\r
- pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;\r
- pfile_in_zip_read_info->stream.zfree = (free_func)0;\r
- pfile_in_zip_read_info->stream.opaque = (voidpf)0;\r
- pfile_in_zip_read_info->stream.next_in = (voidpf)0;\r
- pfile_in_zip_read_info->stream.avail_in = 0;\r
-\r
- err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);\r
- if (err == Z_OK)\r
- pfile_in_zip_read_info->stream_initialised=1;\r
- else\r
- {\r
- TRYFREE(pfile_in_zip_read_info);\r
- return err;\r
- }\r
- /* windowBits is passed < 0 to tell that there is no zlib header.\r
- * Note that in this case inflate *requires* an extra "dummy" byte\r
- * after the compressed stream in order to complete decompression and\r
- * return Z_STREAM_END.\r
- * In unzip, i don't wait absolutely Z_STREAM_END because I known the\r
- * size of both compressed and uncompressed data\r
- */\r
- }\r
- pfile_in_zip_read_info->rest_read_compressed =\r
- s->cur_file_info.compressed_size ;\r
- pfile_in_zip_read_info->rest_read_uncompressed =\r
- s->cur_file_info.uncompressed_size ;\r
-\r
-\r
- pfile_in_zip_read_info->pos_in_zipfile =\r
- s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +\r
- iSizeVar;\r
-\r
- pfile_in_zip_read_info->stream.avail_in = (uInt)0;\r
-\r
- s->pfile_in_zip_read = pfile_in_zip_read_info;\r
-\r
-# ifndef NOUNCRYPT\r
- if (password != NULL)\r
- {\r
- int i;\r
- s->pcrc_32_tab = get_crc_table();\r
- init_keys(password,s->keys,s->pcrc_32_tab);\r
- if (ZSEEK(s->z_filefunc, s->filestream,\r
- s->pfile_in_zip_read->pos_in_zipfile +\r
- s->pfile_in_zip_read->byte_before_the_zipfile,\r
- SEEK_SET)!=0)\r
- return UNZ_INTERNALERROR;\r
- if(ZREAD(s->z_filefunc, s->filestream,source, 12)<12)\r
- return UNZ_INTERNALERROR;\r
-\r
- for (i = 0; i<12; i++)\r
- zdecode(s->keys,s->pcrc_32_tab,source[i]);\r
-\r
- s->pfile_in_zip_read->pos_in_zipfile+=12;\r
- s->encrypted=1;\r
- }\r
-# endif\r
-\r
-\r
- return UNZ_OK;\r
-}\r
-\r
-extern int ZEXPORT unzOpenCurrentFile (file)\r
- unzFile file;\r
-{\r
- return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);\r
-}\r
-\r
-extern int ZEXPORT unzOpenCurrentFilePassword (file, password)\r
- unzFile file;\r
- const char* password;\r
-{\r
- return unzOpenCurrentFile3(file, NULL, NULL, 0, password);\r
-}\r
-\r
-extern int ZEXPORT unzOpenCurrentFile2 (file,method,level,raw)\r
- unzFile file;\r
- int* method;\r
- int* level;\r
- int raw;\r
-{\r
- return unzOpenCurrentFile3(file, method, level, raw, NULL);\r
-}\r
-\r
-/*\r
- Read bytes from the current file.\r
- buf contain buffer where data must be copied\r
- len the size of buf.\r
-\r
- return the number of byte copied if somes bytes are copied\r
- return 0 if the end of file was reached\r
- return <0 with error code if there is an error\r
- (UNZ_ERRNO for IO error, or zLib error for uncompress error)\r
-*/\r
-extern int ZEXPORT unzReadCurrentFile (file, buf, len)\r
- unzFile file;\r
- voidp buf;\r
- unsigned len;\r
-{\r
- int err=UNZ_OK;\r
- uInt iRead = 0;\r
- unz_s* s;\r
- file_in_zip_read_info_s* pfile_in_zip_read_info;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- pfile_in_zip_read_info=s->pfile_in_zip_read;\r
-\r
- if (pfile_in_zip_read_info==NULL)\r
- return UNZ_PARAMERROR;\r
-\r
-\r
- if ((pfile_in_zip_read_info->read_buffer == NULL))\r
- return UNZ_END_OF_LIST_OF_FILE;\r
- if (len==0)\r
- return 0;\r
-\r
- pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;\r
-\r
- pfile_in_zip_read_info->stream.avail_out = (uInt)len;\r
-\r
- if ((len>pfile_in_zip_read_info->rest_read_uncompressed) &&\r
- (!(pfile_in_zip_read_info->raw)))\r
- pfile_in_zip_read_info->stream.avail_out =\r
- (uInt)pfile_in_zip_read_info->rest_read_uncompressed;\r
-\r
- if ((len>pfile_in_zip_read_info->rest_read_compressed+\r
- pfile_in_zip_read_info->stream.avail_in) &&\r
- (pfile_in_zip_read_info->raw))\r
- pfile_in_zip_read_info->stream.avail_out =\r
- (uInt)pfile_in_zip_read_info->rest_read_compressed+\r
- pfile_in_zip_read_info->stream.avail_in;\r
-\r
- while (pfile_in_zip_read_info->stream.avail_out>0)\r
- {\r
- if ((pfile_in_zip_read_info->stream.avail_in==0) &&\r
- (pfile_in_zip_read_info->rest_read_compressed>0))\r
- {\r
- uInt uReadThis = UNZ_BUFSIZE;\r
- if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)\r
- uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;\r
- if (uReadThis == 0)\r
- return UNZ_EOF;\r
- if (ZSEEK(pfile_in_zip_read_info->z_filefunc,\r
- pfile_in_zip_read_info->filestream,\r
- pfile_in_zip_read_info->pos_in_zipfile +\r
- pfile_in_zip_read_info->byte_before_the_zipfile,\r
- ZLIB_FILEFUNC_SEEK_SET)!=0)\r
- return UNZ_ERRNO;\r
- if (ZREAD(pfile_in_zip_read_info->z_filefunc,\r
- pfile_in_zip_read_info->filestream,\r
- pfile_in_zip_read_info->read_buffer,\r
- uReadThis)!=uReadThis)\r
- return UNZ_ERRNO;\r
-\r
-\r
-# ifndef NOUNCRYPT\r
- if(s->encrypted)\r
- {\r
- uInt i;\r
- for(i=0;i<uReadThis;i++)\r
- pfile_in_zip_read_info->read_buffer[i] =\r
- zdecode(s->keys,s->pcrc_32_tab,\r
- pfile_in_zip_read_info->read_buffer[i]);\r
- }\r
-# endif\r
-\r
-\r
- pfile_in_zip_read_info->pos_in_zipfile += uReadThis;\r
-\r
- pfile_in_zip_read_info->rest_read_compressed-=uReadThis;\r
-\r
- pfile_in_zip_read_info->stream.next_in =\r
- (Bytef*)pfile_in_zip_read_info->read_buffer;\r
- pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;\r
- }\r
-\r
- if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))\r
- {\r
- uInt uDoCopy,i ;\r
-\r
- if ((pfile_in_zip_read_info->stream.avail_in == 0) &&\r
- (pfile_in_zip_read_info->rest_read_compressed == 0))\r
- return (iRead==0) ? UNZ_EOF : iRead;\r
-\r
- if (pfile_in_zip_read_info->stream.avail_out <\r
- pfile_in_zip_read_info->stream.avail_in)\r
- uDoCopy = pfile_in_zip_read_info->stream.avail_out ;\r
- else\r
- uDoCopy = pfile_in_zip_read_info->stream.avail_in ;\r
-\r
- for (i=0;i<uDoCopy;i++)\r
- *(pfile_in_zip_read_info->stream.next_out+i) =\r
- *(pfile_in_zip_read_info->stream.next_in+i);\r
-\r
- pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,\r
- pfile_in_zip_read_info->stream.next_out,\r
- uDoCopy);\r
- pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;\r
- pfile_in_zip_read_info->stream.avail_in -= uDoCopy;\r
- pfile_in_zip_read_info->stream.avail_out -= uDoCopy;\r
- pfile_in_zip_read_info->stream.next_out += uDoCopy;\r
- pfile_in_zip_read_info->stream.next_in += uDoCopy;\r
- pfile_in_zip_read_info->stream.total_out += uDoCopy;\r
- iRead += uDoCopy;\r
- }\r
- else\r
- {\r
- uLong uTotalOutBefore,uTotalOutAfter;\r
- const Bytef *bufBefore;\r
- uLong uOutThis;\r
- int flush=Z_SYNC_FLUSH;\r
-\r
- uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;\r
- bufBefore = pfile_in_zip_read_info->stream.next_out;\r
-\r
- /*\r
- if ((pfile_in_zip_read_info->rest_read_uncompressed ==\r
- pfile_in_zip_read_info->stream.avail_out) &&\r
- (pfile_in_zip_read_info->rest_read_compressed == 0))\r
- flush = Z_FINISH;\r
- */\r
- err=inflate(&pfile_in_zip_read_info->stream,flush);\r
-\r
- if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))\r
- err = Z_DATA_ERROR;\r
-\r
- uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;\r
- uOutThis = uTotalOutAfter-uTotalOutBefore;\r
-\r
- pfile_in_zip_read_info->crc32 =\r
- crc32(pfile_in_zip_read_info->crc32,bufBefore,\r
- (uInt)(uOutThis));\r
-\r
- pfile_in_zip_read_info->rest_read_uncompressed -=\r
- uOutThis;\r
-\r
- iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);\r
-\r
- if (err==Z_STREAM_END)\r
- return (iRead==0) ? UNZ_EOF : iRead;\r
- if (err!=Z_OK)\r
- break;\r
- }\r
- }\r
-\r
- if (err==Z_OK)\r
- return iRead;\r
- return err;\r
-}\r
-\r
-\r
-/*\r
- Give the current position in uncompressed data\r
-*/\r
-extern z_off_t ZEXPORT unztell (file)\r
- unzFile file;\r
-{\r
- unz_s* s;\r
- file_in_zip_read_info_s* pfile_in_zip_read_info;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- pfile_in_zip_read_info=s->pfile_in_zip_read;\r
-\r
- if (pfile_in_zip_read_info==NULL)\r
- return UNZ_PARAMERROR;\r
-\r
- return (z_off_t)pfile_in_zip_read_info->stream.total_out;\r
-}\r
-\r
-\r
-/*\r
- return 1 if the end of file was reached, 0 elsewhere\r
-*/\r
-extern int ZEXPORT unzeof (file)\r
- unzFile file;\r
-{\r
- unz_s* s;\r
- file_in_zip_read_info_s* pfile_in_zip_read_info;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- pfile_in_zip_read_info=s->pfile_in_zip_read;\r
-\r
- if (pfile_in_zip_read_info==NULL)\r
- return UNZ_PARAMERROR;\r
-\r
- if (pfile_in_zip_read_info->rest_read_uncompressed == 0)\r
- return 1;\r
- else\r
- return 0;\r
-}\r
-\r
-\r
-\r
-/*\r
- Read extra field from the current file (opened by unzOpenCurrentFile)\r
- This is the local-header version of the extra field (sometimes, there is\r
- more info in the local-header version than in the central-header)\r
-\r
- if buf==NULL, it return the size of the local extra field that can be read\r
-\r
- if buf!=NULL, len is the size of the buffer, the extra header is copied in\r
- buf.\r
- the return value is the number of bytes copied in buf, or (if <0)\r
- the error code\r
-*/\r
-extern int ZEXPORT unzGetLocalExtrafield (file,buf,len)\r
- unzFile file;\r
- voidp buf;\r
- unsigned len;\r
-{\r
- unz_s* s;\r
- file_in_zip_read_info_s* pfile_in_zip_read_info;\r
- uInt read_now;\r
- uLong size_to_read;\r
-\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- pfile_in_zip_read_info=s->pfile_in_zip_read;\r
-\r
- if (pfile_in_zip_read_info==NULL)\r
- return UNZ_PARAMERROR;\r
-\r
- size_to_read = (pfile_in_zip_read_info->size_local_extrafield -\r
- pfile_in_zip_read_info->pos_local_extrafield);\r
-\r
- if (buf==NULL)\r
- return (int)size_to_read;\r
-\r
- if (len>size_to_read)\r
- read_now = (uInt)size_to_read;\r
- else\r
- read_now = (uInt)len ;\r
-\r
- if (read_now==0)\r
- return 0;\r
-\r
- if (ZSEEK(pfile_in_zip_read_info->z_filefunc,\r
- pfile_in_zip_read_info->filestream,\r
- pfile_in_zip_read_info->offset_local_extrafield +\r
- pfile_in_zip_read_info->pos_local_extrafield,\r
- ZLIB_FILEFUNC_SEEK_SET)!=0)\r
- return UNZ_ERRNO;\r
-\r
- if (ZREAD(pfile_in_zip_read_info->z_filefunc,\r
- pfile_in_zip_read_info->filestream,\r
- buf,read_now)!=read_now)\r
- return UNZ_ERRNO;\r
-\r
- return (int)read_now;\r
-}\r
-\r
-/*\r
- Close the file in zip opened with unzipOpenCurrentFile\r
- Return UNZ_CRCERROR if all the file was read but the CRC is not good\r
-*/\r
-extern int ZEXPORT unzCloseCurrentFile (file)\r
- unzFile file;\r
-{\r
- int err=UNZ_OK;\r
-\r
- unz_s* s;\r
- file_in_zip_read_info_s* pfile_in_zip_read_info;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- pfile_in_zip_read_info=s->pfile_in_zip_read;\r
-\r
- if (pfile_in_zip_read_info==NULL)\r
- return UNZ_PARAMERROR;\r
-\r
-\r
- if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) &&\r
- (!pfile_in_zip_read_info->raw))\r
- {\r
- if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)\r
- err=UNZ_CRCERROR;\r
- }\r
-\r
-\r
- TRYFREE(pfile_in_zip_read_info->read_buffer);\r
- pfile_in_zip_read_info->read_buffer = NULL;\r
- if (pfile_in_zip_read_info->stream_initialised)\r
- inflateEnd(&pfile_in_zip_read_info->stream);\r
-\r
- pfile_in_zip_read_info->stream_initialised = 0;\r
- TRYFREE(pfile_in_zip_read_info);\r
-\r
- s->pfile_in_zip_read=NULL;\r
-\r
- return err;\r
-}\r
-\r
-\r
-/*\r
- Get the global comment string of the ZipFile, in the szComment buffer.\r
- uSizeBuf is the size of the szComment buffer.\r
- return the number of byte copied or an error code <0\r
-*/\r
-extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)\r
- unzFile file;\r
- char *szComment;\r
- uLong uSizeBuf;\r
-{\r
- unz_s* s;\r
- uLong uReadThis ;\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
-\r
- uReadThis = uSizeBuf;\r
- if (uReadThis>s->gi.size_comment)\r
- uReadThis = s->gi.size_comment;\r
-\r
- if (ZSEEK(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)\r
- return UNZ_ERRNO;\r
-\r
- if (uReadThis>0)\r
- {\r
- *szComment='\0';\r
- if (ZREAD(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)\r
- return UNZ_ERRNO;\r
- }\r
-\r
- if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))\r
- *(szComment+s->gi.size_comment)='\0';\r
- return (int)uReadThis;\r
-}\r
-\r
-/* Additions by RX '2004 */\r
-extern uLong ZEXPORT unzGetOffset (file)\r
- unzFile file;\r
-{\r
- unz_s* s;\r
-\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
- if (!s->current_file_ok)\r
- return 0;\r
- if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)\r
- if (s->num_file==s->gi.number_entry)\r
- return 0;\r
- return s->pos_in_central_dir;\r
-}\r
-\r
-extern int ZEXPORT unzSetOffset (file, pos)\r
- unzFile file;\r
- uLong pos;\r
-{\r
- unz_s* s;\r
- int err;\r
-\r
- if (file==NULL)\r
- return UNZ_PARAMERROR;\r
- s=(unz_s*)file;\r
-\r
- s->pos_in_central_dir = pos;\r
- s->num_file = s->gi.number_entry; /* hack */\r
- err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,\r
- &s->cur_file_info_internal,\r
- NULL,0,NULL,0,NULL,0);\r
- s->current_file_ok = (err == UNZ_OK);\r
- return err;\r
-}\r
+/* unzip.c -- IO for uncompress .zip files using zlib
+ Version 1.01e, February 12th, 2005
+
+ Copyright (C) 1998-2005 Gilles Vollant
+
+ Read unzip.h for more info
+*/
+
+/* Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
+compatibility with older software. The following is from the original crypt.c. Code
+woven in by Terry Thorsen 1/2003.
+*/
+/*
+ Copyright (c) 1990-2000 Info-ZIP. All rights reserved.
+
+ See the accompanying file LICENSE, version 2000-Apr-09 or later
+ (the contents of which are also included in zip.h) for terms of use.
+ If, for some reason, all these files are missing, the Info-ZIP license
+ also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
+*/
+/*
+ crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h]
+
+ The encryption/decryption parts of this source code (as opposed to the
+ non-echoing password parts) were originally written in Europe. The
+ whole source package can be freely distributed, including from the USA.
+ (Prior to January 2000, re-export from the US was a violation of US law.)
+ */
+
+/*
+ This encryption code is a direct transcription of the algorithm from
+ Roger Schlafly, described by Phil Katz in the file appnote.txt. This
+ file (appnote.txt) is distributed with the PKZIP program (even in the
+ version without encryption capabilities).
+ */
+
+
+#include "zlib.h"
+#include "unzip.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
+
+#include <assert.h>
+
+#ifndef local
+# define local static
+#endif
+/* compile with -Dlocal if your debugger can't find static symbols */
+
+
+#ifndef CASESENSITIVITYDEFAULT_NO
+# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
+# define CASESENSITIVITYDEFAULT_NO
+# endif
+#endif
+
+
+#ifndef UNZ_BUFSIZE
+#define UNZ_BUFSIZE (16384)
+#endif
+
+#ifndef UNZ_MAXFILENAMEINZIP
+#define UNZ_MAXFILENAMEINZIP (256)
+#endif
+
+#ifndef ALLOC
+# define ALLOC(size) (malloc(size))
+#endif
+#ifndef TRYFREE
+# define TRYFREE(p) {free(p);}
+#endif
+
+#define SIZECENTRALDIRITEM (0x2e)
+#define SIZEZIPLOCALHEADER (0x1e)
+
+
+
+
+const char unz_copyright[] =
+ " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
+
+/* unz_file_info_interntal contain internal info about a file in zipfile*/
+typedef struct unz_file_info_internal_s
+{
+ uLong offset_curfile;/* relative offset of local header 4 bytes */
+} unz_file_info_internal;
+
+
+/* file_in_zip_read_info_s contain internal information about a file in zipfile,
+ when reading and decompress it */
+typedef struct
+{
+ char *read_buffer; /* internal buffer for compressed data */
+ z_stream stream; /* zLib stream structure for inflate */
+
+ uLong pos_in_zipfile; /* position in byte on the zipfile, for fseek*/
+ uLong stream_initialised; /* flag set if stream structure is initialised*/
+
+ uLong offset_local_extrafield;/* offset of the local extra field */
+ uInt size_local_extrafield;/* size of the local extra field */
+ uLong pos_local_extrafield; /* position in the local extra field in read*/
+
+ uLong crc32; /* crc32 of all data uncompressed */
+ uLong crc32_wait; /* crc32 we must obtain after decompress all */
+ uLong rest_read_compressed; /* number of byte to be decompressed */
+ uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/
+ zlib_filefunc_def z_filefunc;
+ voidpf filestream; /* io structore of the zipfile */
+ uLong compression_method; /* compression method (0==store) */
+ uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+ int raw;
+} file_in_zip_read_info_s;
+
+
+/* unz_s contain internal information about the zipfile
+*/
+typedef struct
+{
+ zlib_filefunc_def z_filefunc;
+ voidpf filestream; /* io structore of the zipfile */
+ unz_global_info gi; /* public global information */
+ uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
+ uLong num_file; /* number of the current file in the zipfile*/
+ uLong pos_in_central_dir; /* pos of the current file in the central dir*/
+ uLong current_file_ok; /* flag about the usability of the current file*/
+ uLong central_pos; /* position of the beginning of the central dir*/
+
+ uLong size_central_dir; /* size of the central directory */
+ uLong offset_central_dir; /* offset of start of central directory with
+ respect to the starting disk number */
+
+ unz_file_info cur_file_info; /* public info about the current file in zip*/
+ unz_file_info_internal cur_file_info_internal; /* private info about it*/
+ file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
+ file if we are decompressing it */
+ int encrypted;
+# ifndef NOUNCRYPT
+ unsigned long keys[3]; /* keys defining the pseudo-random sequence */
+ const unsigned long* pcrc_32_tab;
+# endif
+} unz_s;
+
+
+#ifndef NOUNCRYPT
+#include "crypt.h"
+#endif
+
+/* ===========================================================================
+ Read a byte from a gz_stream; update next_in and avail_in. Return EOF
+ for end of file.
+ IN assertion: the stream s has been sucessfully opened for reading.
+*/
+
+
+local int unzlocal_getByte OF((
+ const zlib_filefunc_def* pzlib_filefunc_def,
+ voidpf filestream,
+ int *pi));
+
+local int unzlocal_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 UNZ_OK;
+ }
+ else
+ {
+ if (ZERROR(*pzlib_filefunc_def,filestream))
+ return UNZ_ERRNO;
+ else
+ return UNZ_EOF;
+ }
+}
+
+
+/* ===========================================================================
+ Reads a long in LSB order from the given gz_stream. Sets
+*/
+local int unzlocal_getShort OF((
+ const zlib_filefunc_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX));
+
+local int unzlocal_getShort (pzlib_filefunc_def,filestream,pX)
+ const zlib_filefunc_def* pzlib_filefunc_def;
+ voidpf filestream;
+ uLong *pX;
+{
+ uLong x ;
+ int i = 0;
+ int err;
+
+ err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ x = (uLong)i;
+
+ if (err==UNZ_OK)
+ err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((uLong)i)<<8;
+
+ if (err==UNZ_OK)
+ *pX = x;
+ else
+ *pX = 0;
+ return err;
+}
+
+local int unzlocal_getLong OF((
+ const zlib_filefunc_def* pzlib_filefunc_def,
+ voidpf filestream,
+ uLong *pX));
+
+local int unzlocal_getLong (pzlib_filefunc_def,filestream,pX)
+ const zlib_filefunc_def* pzlib_filefunc_def;
+ voidpf filestream;
+ uLong *pX;
+{
+ uLong x ;
+ int i = 0;
+ int err;
+
+ err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ x = (uLong)i;
+
+ if (err==UNZ_OK)
+ err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((uLong)i)<<8;
+
+ if (err==UNZ_OK)
+ err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((uLong)i)<<16;
+
+ if (err==UNZ_OK)
+ err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
+ x += ((uLong)i)<<24;
+
+ if (err==UNZ_OK)
+ *pX = x;
+ else
+ *pX = 0;
+ return err;
+}
+
+
+/* My own strcmpi / strcasecmp */
+local int strcmpcasenosensitive_internal (fileName1,fileName2)
+ const char* fileName1;
+ const char* fileName2;
+{
+ for (;;)
+ {
+ char c1=*(fileName1++);
+ char c2=*(fileName2++);
+ if ((c1>='a') && (c1<='z'))
+ c1 -= 0x20;
+ if ((c2>='a') && (c2<='z'))
+ c2 -= 0x20;
+ if (c1=='\0')
+ return ((c2=='\0') ? 0 : -1);
+ if (c2=='\0')
+ return 1;
+ if (c1<c2)
+ return -1;
+ if (c1>c2)
+ return 1;
+ }
+}
+
+
+#ifdef CASESENSITIVITYDEFAULT_NO
+#define CASESENSITIVITYDEFAULTVALUE 2
+#else
+#define CASESENSITIVITYDEFAULTVALUE 1
+#endif
+
+#ifndef STRCMPCASENOSENTIVEFUNCTION
+#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
+#endif
+
+/*
+ Compare two filename (fileName1,fileName2).
+ If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
+ If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
+ or strcasecmp)
+ If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
+ (like 1 on Unix, 2 on Windows)
+
+*/
+extern int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivity)
+ const char* fileName1;
+ const char* fileName2;
+ int iCaseSensitivity;
+{
+ if (iCaseSensitivity==0)
+ iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
+
+ if (iCaseSensitivity==1)
+ return strcmp(fileName1,fileName2);
+
+ return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
+}
+
+#ifndef BUFREADCOMMENT
+#define BUFREADCOMMENT (0x400)
+#endif
+
+/*
+ Locate the Central directory of a zipfile (at the end, just before
+ the global comment)
+*/
+local uLong unzlocal_SearchCentralDir OF((
+ const zlib_filefunc_def* pzlib_filefunc_def,
+ voidpf filestream));
+
+local uLong unzlocal_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;
+
+ if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
+ return 0;
+
+
+ uSizeFile = ZTELL(*pzlib_filefunc_def,filestream);
+
+ if (uMaxBack>uSizeFile)
+ uMaxBack = uSizeFile;
+
+ buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
+ if (buf==NULL)
+ return 0;
+
+ uBackRead = 4;
+ while (uBackRead<uMaxBack)
+ {
+ uLong uReadSize,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;
+
+ if (ZREAD(*pzlib_filefunc_def,filestream,buf,uReadSize)!=uReadSize)
+ break;
+
+ for (i=(int)uReadSize-3; (i--)>0;)
+ if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
+ ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
+ {
+ uPosFound = uReadPos+i;
+ break;
+ }
+
+ if (uPosFound!=0)
+ break;
+ }
+ TRYFREE(buf);
+ return uPosFound;
+}
+
+/*
+ Open a Zip file. path contain the full pathname (by example,
+ on a Windows NT computer "c:\\test\\zlib114.zip" or on an Unix computer
+ "zlib/zlib114.zip".
+ If the zipfile cannot be opened (file doesn't exist or in not valid), the
+ return value is NULL.
+ Else, the return value is a unzFile Handle, usable with other function
+ of this unzip package.
+*/
+extern unzFile ZEXPORT unzOpen2 (path, pzlib_filefunc_def)
+ const char *path;
+ zlib_filefunc_def* pzlib_filefunc_def;
+{
+ unz_s us;
+ unz_s *s;
+ 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_CD; /* total number of entries in
+ the central dir
+ (same than number_entry on nospan) */
+
+ int err=UNZ_OK;
+
+ if (unz_copyright[0]!=' ')
+ return NULL;
+
+ if (pzlib_filefunc_def==NULL)
+ fill_fopen_filefunc(&us.z_filefunc);
+ else
+ us.z_filefunc = *pzlib_filefunc_def;
+
+ us.filestream= (*(us.z_filefunc.zopen_file))(us.z_filefunc.opaque,
+ path,
+ ZLIB_FILEFUNC_MODE_READ |
+ ZLIB_FILEFUNC_MODE_EXISTING);
+ if (us.filestream==NULL)
+ return NULL;
+
+ central_pos = unzlocal_SearchCentralDir(&us.z_filefunc,us.filestream);
+ if (central_pos==0)
+ err=UNZ_ERRNO;
+
+ if (ZSEEK(us.z_filefunc, us.filestream,
+ central_pos,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err=UNZ_ERRNO;
+
+ /* the signature, already checked */
+ if (unzlocal_getLong(&us.z_filefunc, us.filestream,&uL)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of this disk */
+ if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* number of the disk with the start of the central directory */
+ if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_disk_with_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* total number of entries in the central dir on this disk */
+ if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.number_entry)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* total number of entries in the central dir */
+ if (unzlocal_getShort(&us.z_filefunc, us.filestream,&number_entry_CD)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if ((number_entry_CD!=us.gi.number_entry) ||
+ (number_disk_with_CD!=0) ||
+ (number_disk!=0))
+ err=UNZ_BADZIPFILE;
+
+ /* size of the central directory */
+ if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.size_central_dir)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* offset of start of central directory with respect to the
+ starting disk number */
+ if (unzlocal_getLong(&us.z_filefunc, us.filestream,&us.offset_central_dir)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ /* zipfile comment length */
+ if (unzlocal_getShort(&us.z_filefunc, us.filestream,&us.gi.size_comment)!=UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
+ (err==UNZ_OK))
+ err=UNZ_BADZIPFILE;
+
+ if (err!=UNZ_OK)
+ {
+ ZCLOSE(us.z_filefunc, us.filestream);
+ return NULL;
+ }
+
+ us.byte_before_the_zipfile = central_pos -
+ (us.offset_central_dir+us.size_central_dir);
+ us.central_pos = central_pos;
+ us.pfile_in_zip_read = NULL;
+ us.encrypted = 0;
+
+
+ s=(unz_s*)ALLOC(sizeof(unz_s));
+ *s=us;
+ unzGoToFirstFile((unzFile)s);
+ return (unzFile)s;
+}
+
+
+extern unzFile ZEXPORT unzOpen (path)
+ const char *path;
+{
+ return unzOpen2(path, NULL);
+}
+
+/*
+ Close a ZipFile opened with unzipOpen.
+ If there is files inside the .Zip opened with unzipOpenCurrentFile (see later),
+ these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
+ return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzClose (file)
+ unzFile file;
+{
+ unz_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+
+ if (s->pfile_in_zip_read!=NULL)
+ unzCloseCurrentFile(file);
+
+ ZCLOSE(s->z_filefunc, s->filestream);
+ TRYFREE(s);
+ return UNZ_OK;
+}
+
+
+/*
+ Write info about the ZipFile in the *pglobal_info structure.
+ No preparation of the structure is needed
+ return UNZ_OK if there is no problem. */
+extern int ZEXPORT unzGetGlobalInfo (file,pglobal_info)
+ unzFile file;
+ unz_global_info *pglobal_info;
+{
+ unz_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ *pglobal_info=s->gi;
+ return UNZ_OK;
+}
+
+
+/*
+ Translate date/time from Dos format to tm_unz (readable more easilty)
+*/
+local void unzlocal_DosDateToTmuDate (ulDosDate, ptm)
+ uLong ulDosDate;
+ tm_unz* ptm;
+{
+ uLong uDate;
+ uDate = (uLong)(ulDosDate>>16);
+ ptm->tm_mday = (uInt)(uDate&0x1f) ;
+ ptm->tm_mon = (uInt)((((uDate)&0x1E0)/0x20)-1) ;
+ ptm->tm_year = (uInt)(((uDate&0x0FE00)/0x0200)+1980) ;
+
+ ptm->tm_hour = (uInt) ((ulDosDate &0xF800)/0x800);
+ ptm->tm_min = (uInt) ((ulDosDate&0x7E0)/0x20) ;
+ ptm->tm_sec = (uInt) (2*(ulDosDate&0x1f)) ;
+}
+
+/*
+ Get Info about the current file in the zipfile, with internal only info
+*/
+local int unzlocal_GetCurrentFileInfoInternal OF((unzFile file,
+ unz_file_info *pfile_info,
+ unz_file_info_internal
+ *pfile_info_internal,
+ char *szFileName,
+ uLong fileNameBufferSize,
+ void *extraField,
+ uLong extraFieldBufferSize,
+ char *szComment,
+ uLong commentBufferSize));
+
+local int unzlocal_GetCurrentFileInfoInternal (file,
+ pfile_info,
+ pfile_info_internal,
+ szFileName, fileNameBufferSize,
+ extraField, extraFieldBufferSize,
+ szComment, commentBufferSize)
+ unzFile file;
+ unz_file_info *pfile_info;
+ unz_file_info_internal *pfile_info_internal;
+ char *szFileName;
+ uLong fileNameBufferSize;
+ void *extraField;
+ uLong extraFieldBufferSize;
+ char *szComment;
+ uLong commentBufferSize;
+{
+ unz_s* s;
+ unz_file_info file_info;
+ unz_file_info_internal file_info_internal;
+ int err=UNZ_OK;
+ uLong uMagic;
+ long lSeek=0;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ if (ZSEEK(s->z_filefunc, s->filestream,
+ s->pos_in_central_dir+s->byte_before_the_zipfile,
+ ZLIB_FILEFUNC_SEEK_SET)!=0)
+ err=UNZ_ERRNO;
+
+
+ /* we check the magic */
+ if (err==UNZ_OK)
+ {
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if (uMagic!=0x02014b50)
+ err=UNZ_BADZIPFILE;
+ }
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.version_needed) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.flag) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.compression_method) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.dosDate) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.crc) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.compressed_size) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.uncompressed_size) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_filename) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_extra) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.size_file_comment) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.disk_num_start) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&file_info.internal_fa) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info.external_fa) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&file_info_internal.offset_curfile) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ lSeek+=file_info.size_filename;
+ if ((err==UNZ_OK) && (szFileName!=NULL))
+ {
+ uLong uSizeRead ;
+ if (file_info.size_filename<fileNameBufferSize)
+ {
+ *(szFileName+file_info.size_filename)='\0';
+ uSizeRead = file_info.size_filename;
+ }
+ else
+ uSizeRead = fileNameBufferSize;
+
+ if ((file_info.size_filename>0) && (fileNameBufferSize>0))
+ if (ZREAD(s->z_filefunc, s->filestream,szFileName,uSizeRead)!=uSizeRead)
+ err=UNZ_ERRNO;
+ lSeek -= uSizeRead;
+ }
+
+
+ if ((err==UNZ_OK) && (extraField!=NULL))
+ {
+ uLong uSizeRead ;
+ if (file_info.size_file_extra<extraFieldBufferSize)
+ uSizeRead = file_info.size_file_extra;
+ else
+ uSizeRead = extraFieldBufferSize;
+
+ if (lSeek!=0)
+ {
+ if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ lSeek=0;
+ else
+ err=UNZ_ERRNO;
+ }
+ if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
+ if (ZREAD(s->z_filefunc, s->filestream,extraField,uSizeRead)!=uSizeRead)
+ err=UNZ_ERRNO;
+ lSeek += file_info.size_file_extra - uSizeRead;
+ }
+ else
+ lSeek+=file_info.size_file_extra;
+
+
+ if ((err==UNZ_OK) && (szComment!=NULL))
+ {
+ uLong uSizeRead ;
+ if (file_info.size_file_comment<commentBufferSize)
+ {
+ *(szComment+file_info.size_file_comment)='\0';
+ uSizeRead = file_info.size_file_comment;
+ }
+ else
+ uSizeRead = commentBufferSize;
+
+ if (lSeek!=0)
+ {
+ if (ZSEEK(s->z_filefunc, s->filestream,lSeek,ZLIB_FILEFUNC_SEEK_CUR)==0)
+ lSeek=0;
+ else
+ err=UNZ_ERRNO;
+ }
+ if ((file_info.size_file_comment>0) && (commentBufferSize>0))
+ if (ZREAD(s->z_filefunc, s->filestream,szComment,uSizeRead)!=uSizeRead)
+ err=UNZ_ERRNO;
+ lSeek+=file_info.size_file_comment - uSizeRead;
+ }
+ else
+ lSeek+=file_info.size_file_comment;
+
+ if ((err==UNZ_OK) && (pfile_info!=NULL))
+ *pfile_info=file_info;
+
+ if ((err==UNZ_OK) && (pfile_info_internal!=NULL))
+ *pfile_info_internal=file_info_internal;
+
+ return err;
+}
+
+
+
+/*
+ Write info about the ZipFile in the *pglobal_info structure.
+ No preparation of the structure is needed
+ return UNZ_OK if there is no problem.
+*/
+extern int ZEXPORT unzGetCurrentFileInfo (file,
+ pfile_info,
+ szFileName, fileNameBufferSize,
+ extraField, extraFieldBufferSize,
+ szComment, commentBufferSize)
+ unzFile file;
+ unz_file_info *pfile_info;
+ char *szFileName;
+ uLong fileNameBufferSize;
+ void *extraField;
+ uLong extraFieldBufferSize;
+ char *szComment;
+ uLong commentBufferSize;
+{
+ return unzlocal_GetCurrentFileInfoInternal(file,pfile_info,NULL,
+ szFileName,fileNameBufferSize,
+ extraField,extraFieldBufferSize,
+ szComment,commentBufferSize);
+}
+
+/*
+ Set the current file of the zipfile to the first file.
+ return UNZ_OK if there is no problem
+*/
+extern int ZEXPORT unzGoToFirstFile (file)
+ unzFile file;
+{
+ int err=UNZ_OK;
+ unz_s* s;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ s->pos_in_central_dir=s->offset_central_dir;
+ s->num_file=0;
+ err=unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
+
+/*
+ Set the current file of the zipfile to the next file.
+ return UNZ_OK if there is no problem
+ return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
+*/
+extern int ZEXPORT unzGoToNextFile (file)
+ unzFile file;
+{
+ unz_s* s;
+ int err;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_END_OF_LIST_OF_FILE;
+ if (s->gi.number_entry != 0xffff) /* 2^16 files overflow hack */
+ if (s->num_file+1==s->gi.number_entry)
+ return UNZ_END_OF_LIST_OF_FILE;
+
+ s->pos_in_central_dir += SIZECENTRALDIRITEM + s->cur_file_info.size_filename +
+ s->cur_file_info.size_file_extra + s->cur_file_info.size_file_comment ;
+ s->num_file++;
+ err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
+
+
+/*
+ Try locate the file szFileName in the zipfile.
+ For the iCaseSensitivity signification, see unzipStringFileNameCompare
+
+ return value :
+ UNZ_OK if the file is found. It becomes the current file.
+ UNZ_END_OF_LIST_OF_FILE if the file is not found
+*/
+extern int ZEXPORT unzLocateFile (file, szFileName, iCaseSensitivity)
+ unzFile file;
+ const char *szFileName;
+ int iCaseSensitivity;
+{
+ unz_s* s;
+ int err;
+
+ /* We remember the 'current' position in the file so that we can jump
+ * back there if we fail.
+ */
+ unz_file_info cur_file_infoSaved;
+ unz_file_info_internal cur_file_info_internalSaved;
+ uLong num_fileSaved;
+ uLong pos_in_central_dirSaved;
+
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+
+ if (strlen(szFileName)>=UNZ_MAXFILENAMEINZIP)
+ return UNZ_PARAMERROR;
+
+ s=(unz_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_END_OF_LIST_OF_FILE;
+
+ /* Save the current state */
+ num_fileSaved = s->num_file;
+ pos_in_central_dirSaved = s->pos_in_central_dir;
+ cur_file_infoSaved = s->cur_file_info;
+ cur_file_info_internalSaved = s->cur_file_info_internal;
+
+ err = unzGoToFirstFile(file);
+
+ while (err == UNZ_OK)
+ {
+ char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
+ err = unzGetCurrentFileInfo(file,NULL,
+ szCurrentFileName,sizeof(szCurrentFileName)-1,
+ NULL,0,NULL,0);
+ if (err == UNZ_OK)
+ {
+ if (unzStringFileNameCompare(szCurrentFileName,
+ szFileName,iCaseSensitivity)==0)
+ return UNZ_OK;
+ err = unzGoToNextFile(file);
+ }
+ }
+
+ /* We failed, so restore the state of the 'current file' to where we
+ * were.
+ */
+ s->num_file = num_fileSaved ;
+ s->pos_in_central_dir = pos_in_central_dirSaved ;
+ s->cur_file_info = cur_file_infoSaved;
+ s->cur_file_info_internal = cur_file_info_internalSaved;
+ return err;
+}
+
+
+/*
+///////////////////////////////////////////
+// Contributed by Ryan Haksi (mailto://cryogen@infoserve.net)
+// I need random access
+//
+// Further optimization could be realized by adding an ability
+// to cache the directory in memory. The goal being a single
+// comprehensive file read to put the file I need in a memory.
+*/
+
+/*
+typedef struct unz_file_pos_s
+{
+ uLong pos_in_zip_directory; // offset in file
+ uLong num_of_file; // # of file
+} unz_file_pos;
+*/
+
+extern int ZEXPORT unzGetFilePos(file, file_pos)
+ unzFile file;
+ unz_file_pos* file_pos;
+{
+ unz_s* s;
+
+ if (file==NULL || file_pos==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_END_OF_LIST_OF_FILE;
+
+ file_pos->pos_in_zip_directory = s->pos_in_central_dir;
+ file_pos->num_of_file = s->num_file;
+
+ return UNZ_OK;
+}
+
+extern int ZEXPORT unzGoToFilePos(file, file_pos)
+ unzFile file;
+ unz_file_pos* file_pos;
+{
+ unz_s* s;
+ int err;
+
+ if (file==NULL || file_pos==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+
+ /* jump to the right spot */
+ s->pos_in_central_dir = file_pos->pos_in_zip_directory;
+ s->num_file = file_pos->num_of_file;
+
+ /* set the current file */
+ err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ /* return results */
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
+
+/*
+// Unzip Helper Functions - should be here?
+///////////////////////////////////////////
+*/
+
+/*
+ Read the local header of the current zipfile
+ Check the coherency of the local header and info in the end of central
+ directory about this file
+ store in *piSizeVar the size of extra info in local header
+ (filename and size of extra field data)
+*/
+local int unzlocal_CheckCurrentFileCoherencyHeader (s,piSizeVar,
+ poffset_local_extrafield,
+ psize_local_extrafield)
+ unz_s* s;
+ uInt* piSizeVar;
+ uLong *poffset_local_extrafield;
+ uInt *psize_local_extrafield;
+{
+ uLong uMagic,uData,uFlags;
+ uLong size_filename;
+ uLong size_extra_field;
+ int err=UNZ_OK;
+
+ *piSizeVar = 0;
+ *poffset_local_extrafield = 0;
+ *psize_local_extrafield = 0;
+
+ if (ZSEEK(s->z_filefunc, s->filestream,s->cur_file_info_internal.offset_curfile +
+ s->byte_before_the_zipfile,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+
+
+ if (err==UNZ_OK)
+ {
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uMagic) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if (uMagic!=0x04034b50)
+ err=UNZ_BADZIPFILE;
+ }
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+ err=UNZ_ERRNO;
+/*
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
+ err=UNZ_BADZIPFILE;
+*/
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uFlags) != UNZ_OK)
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&uData) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compression_method))
+ err=UNZ_BADZIPFILE;
+
+ if ((err==UNZ_OK) && (s->cur_file_info.compression_method!=0) &&
+ (s->cur_file_info.compression_method!=Z_DEFLATED))
+ err=UNZ_BADZIPFILE;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* date/time */
+ err=UNZ_ERRNO;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* crc */
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.crc) &&
+ ((uFlags & 8)==0))
+ err=UNZ_BADZIPFILE;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size compr */
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.compressed_size) &&
+ ((uFlags & 8)==0))
+ err=UNZ_BADZIPFILE;
+
+ if (unzlocal_getLong(&s->z_filefunc, s->filestream,&uData) != UNZ_OK) /* size uncompr */
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (uData!=s->cur_file_info.uncompressed_size) &&
+ ((uFlags & 8)==0))
+ err=UNZ_BADZIPFILE;
+
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_filename) != UNZ_OK)
+ err=UNZ_ERRNO;
+ else if ((err==UNZ_OK) && (size_filename!=s->cur_file_info.size_filename))
+ err=UNZ_BADZIPFILE;
+
+ *piSizeVar += (uInt)size_filename;
+
+ if (unzlocal_getShort(&s->z_filefunc, s->filestream,&size_extra_field) != UNZ_OK)
+ err=UNZ_ERRNO;
+ *poffset_local_extrafield= s->cur_file_info_internal.offset_curfile +
+ SIZEZIPLOCALHEADER + size_filename;
+ *psize_local_extrafield = (uInt)size_extra_field;
+
+ *piSizeVar += (uInt)size_extra_field;
+
+ return err;
+}
+
+/*
+ Open for reading data the current file in the zipfile.
+ If there is no error and the file is opened, the return value is UNZ_OK.
+*/
+extern int ZEXPORT unzOpenCurrentFile3 (file, method, level, raw, password)
+ unzFile file;
+ int* method;
+ int* level;
+ int raw;
+ const char* password;
+{
+ int err=UNZ_OK;
+ uInt iSizeVar;
+ unz_s* s;
+ file_in_zip_read_info_s* pfile_in_zip_read_info;
+ uLong offset_local_extrafield; /* offset of the local extra field */
+ uInt size_local_extrafield; /* size of the local extra field */
+# ifndef NOUNCRYPT
+ char source[12];
+# else
+ if (password != NULL)
+ return UNZ_PARAMERROR;
+# endif
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ if (!s->current_file_ok)
+ return UNZ_PARAMERROR;
+
+ if (s->pfile_in_zip_read != NULL)
+ unzCloseCurrentFile(file);
+
+ if (unzlocal_CheckCurrentFileCoherencyHeader(s,&iSizeVar,
+ &offset_local_extrafield,&size_local_extrafield)!=UNZ_OK)
+ return UNZ_BADZIPFILE;
+
+ pfile_in_zip_read_info = (file_in_zip_read_info_s*)
+ ALLOC(sizeof(file_in_zip_read_info_s));
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_INTERNALERROR;
+
+ pfile_in_zip_read_info->read_buffer=(char*)ALLOC(UNZ_BUFSIZE);
+ pfile_in_zip_read_info->offset_local_extrafield = offset_local_extrafield;
+ pfile_in_zip_read_info->size_local_extrafield = size_local_extrafield;
+ pfile_in_zip_read_info->pos_local_extrafield=0;
+ pfile_in_zip_read_info->raw=raw;
+
+ if (pfile_in_zip_read_info->read_buffer==NULL)
+ {
+ TRYFREE(pfile_in_zip_read_info);
+ return UNZ_INTERNALERROR;
+ }
+
+ pfile_in_zip_read_info->stream_initialised=0;
+
+ if (method!=NULL)
+ *method = (int)s->cur_file_info.compression_method;
+
+ if (level!=NULL)
+ {
+ *level = 6;
+ switch (s->cur_file_info.flag & 0x06)
+ {
+ case 6 : *level = 1; break;
+ case 4 : *level = 2; break;
+ case 2 : *level = 9; break;
+ }
+ }
+
+ if ((s->cur_file_info.compression_method!=0) &&
+ (s->cur_file_info.compression_method!=Z_DEFLATED))
+ err=UNZ_BADZIPFILE;
+
+ pfile_in_zip_read_info->crc32_wait=s->cur_file_info.crc;
+ pfile_in_zip_read_info->crc32=0;
+ pfile_in_zip_read_info->compression_method =
+ s->cur_file_info.compression_method;
+ pfile_in_zip_read_info->filestream=s->filestream;
+ pfile_in_zip_read_info->z_filefunc=s->z_filefunc;
+ pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
+
+ pfile_in_zip_read_info->stream.total_out = 0;
+
+ if ((s->cur_file_info.compression_method==Z_DEFLATED) &&
+ (!raw))
+ {
+ pfile_in_zip_read_info->stream.zalloc = (alloc_func)0;
+ pfile_in_zip_read_info->stream.zfree = (free_func)0;
+ pfile_in_zip_read_info->stream.opaque = (voidpf)0;
+ pfile_in_zip_read_info->stream.next_in = (voidpf)0;
+ pfile_in_zip_read_info->stream.avail_in = 0;
+
+ err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
+ if (err == Z_OK)
+ pfile_in_zip_read_info->stream_initialised=1;
+ else
+ {
+ TRYFREE(pfile_in_zip_read_info);
+ return err;
+ }
+ /* windowBits is passed < 0 to tell that there is no zlib header.
+ * Note that in this case inflate *requires* an extra "dummy" byte
+ * after the compressed stream in order to complete decompression and
+ * return Z_STREAM_END.
+ * In unzip, i don't wait absolutely Z_STREAM_END because I known the
+ * size of both compressed and uncompressed data
+ */
+ }
+ pfile_in_zip_read_info->rest_read_compressed =
+ s->cur_file_info.compressed_size ;
+ pfile_in_zip_read_info->rest_read_uncompressed =
+ s->cur_file_info.uncompressed_size ;
+
+
+ pfile_in_zip_read_info->pos_in_zipfile =
+ s->cur_file_info_internal.offset_curfile + SIZEZIPLOCALHEADER +
+ iSizeVar;
+
+ pfile_in_zip_read_info->stream.avail_in = (uInt)0;
+
+ s->pfile_in_zip_read = pfile_in_zip_read_info;
+
+# ifndef NOUNCRYPT
+ if (password != NULL)
+ {
+ int i;
+ s->pcrc_32_tab = get_crc_table();
+ init_keys(password,s->keys,s->pcrc_32_tab);
+ if (ZSEEK(s->z_filefunc, s->filestream,
+ s->pfile_in_zip_read->pos_in_zipfile +
+ s->pfile_in_zip_read->byte_before_the_zipfile,
+ SEEK_SET)!=0)
+ return UNZ_INTERNALERROR;
+ if(ZREAD(s->z_filefunc, s->filestream,source, 12)<12)
+ return UNZ_INTERNALERROR;
+
+ for (i = 0; i<12; i++)
+ zdecode(s->keys,s->pcrc_32_tab,source[i]);
+
+ s->pfile_in_zip_read->pos_in_zipfile+=12;
+ s->encrypted=1;
+ }
+# endif
+
+
+ return UNZ_OK;
+}
+
+extern int ZEXPORT unzOpenCurrentFile (file)
+ unzFile file;
+{
+ return unzOpenCurrentFile3(file, NULL, NULL, 0, NULL);
+}
+
+extern int ZEXPORT unzOpenCurrentFilePassword (file, password)
+ unzFile file;
+ const char* password;
+{
+ return unzOpenCurrentFile3(file, NULL, NULL, 0, password);
+}
+
+extern int ZEXPORT unzOpenCurrentFile2 (file,method,level,raw)
+ unzFile file;
+ int* method;
+ int* level;
+ int raw;
+{
+ return unzOpenCurrentFile3(file, method, level, raw, NULL);
+}
+
+/*
+ Read bytes from the current file.
+ buf contain buffer where data must be copied
+ len the size of buf.
+
+ return the number of byte copied if somes bytes are copied
+ return 0 if the end of file was reached
+ return <0 with error code if there is an error
+ (UNZ_ERRNO for IO error, or zLib error for uncompress error)
+*/
+extern int ZEXPORT unzReadCurrentFile (file, buf, len)
+ unzFile file;
+ voidp buf;
+ unsigned len;
+{
+ int err=UNZ_OK;
+ uInt iRead = 0;
+ unz_s* s;
+ file_in_zip_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+
+ if ((pfile_in_zip_read_info->read_buffer == NULL))
+ return UNZ_END_OF_LIST_OF_FILE;
+ if (len==0)
+ return 0;
+
+ pfile_in_zip_read_info->stream.next_out = (Bytef*)buf;
+
+ pfile_in_zip_read_info->stream.avail_out = (uInt)len;
+
+ if ((len>pfile_in_zip_read_info->rest_read_uncompressed) &&
+ (!(pfile_in_zip_read_info->raw)))
+ pfile_in_zip_read_info->stream.avail_out =
+ (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
+
+ if ((len>pfile_in_zip_read_info->rest_read_compressed+
+ pfile_in_zip_read_info->stream.avail_in) &&
+ (pfile_in_zip_read_info->raw))
+ pfile_in_zip_read_info->stream.avail_out =
+ (uInt)pfile_in_zip_read_info->rest_read_compressed+
+ pfile_in_zip_read_info->stream.avail_in;
+
+ while (pfile_in_zip_read_info->stream.avail_out>0)
+ {
+ if ((pfile_in_zip_read_info->stream.avail_in==0) &&
+ (pfile_in_zip_read_info->rest_read_compressed>0))
+ {
+ uInt uReadThis = UNZ_BUFSIZE;
+ if (pfile_in_zip_read_info->rest_read_compressed<uReadThis)
+ uReadThis = (uInt)pfile_in_zip_read_info->rest_read_compressed;
+ if (uReadThis == 0)
+ return UNZ_EOF;
+ if (ZSEEK(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->pos_in_zipfile +
+ pfile_in_zip_read_info->byte_before_the_zipfile,
+ ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+ if (ZREAD(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->read_buffer,
+ uReadThis)!=uReadThis)
+ return UNZ_ERRNO;
+
+
+# ifndef NOUNCRYPT
+ if(s->encrypted)
+ {
+ uInt i;
+ for(i=0;i<uReadThis;i++)
+ pfile_in_zip_read_info->read_buffer[i] =
+ zdecode(s->keys,s->pcrc_32_tab,
+ pfile_in_zip_read_info->read_buffer[i]);
+ }
+# endif
+
+
+ pfile_in_zip_read_info->pos_in_zipfile += uReadThis;
+
+ pfile_in_zip_read_info->rest_read_compressed-=uReadThis;
+
+ pfile_in_zip_read_info->stream.next_in =
+ (Bytef*)pfile_in_zip_read_info->read_buffer;
+ pfile_in_zip_read_info->stream.avail_in = (uInt)uReadThis;
+ }
+
+ if ((pfile_in_zip_read_info->compression_method==0) || (pfile_in_zip_read_info->raw))
+ {
+ uInt uDoCopy,i ;
+
+ if ((pfile_in_zip_read_info->stream.avail_in == 0) &&
+ (pfile_in_zip_read_info->rest_read_compressed == 0))
+ return (iRead==0) ? UNZ_EOF : iRead;
+
+ if (pfile_in_zip_read_info->stream.avail_out <
+ pfile_in_zip_read_info->stream.avail_in)
+ uDoCopy = pfile_in_zip_read_info->stream.avail_out ;
+ else
+ uDoCopy = pfile_in_zip_read_info->stream.avail_in ;
+
+ for (i=0;i<uDoCopy;i++)
+ *(pfile_in_zip_read_info->stream.next_out+i) =
+ *(pfile_in_zip_read_info->stream.next_in+i);
+
+ pfile_in_zip_read_info->crc32 = crc32(pfile_in_zip_read_info->crc32,
+ pfile_in_zip_read_info->stream.next_out,
+ uDoCopy);
+ pfile_in_zip_read_info->rest_read_uncompressed-=uDoCopy;
+ pfile_in_zip_read_info->stream.avail_in -= uDoCopy;
+ pfile_in_zip_read_info->stream.avail_out -= uDoCopy;
+ pfile_in_zip_read_info->stream.next_out += uDoCopy;
+ pfile_in_zip_read_info->stream.next_in += uDoCopy;
+ pfile_in_zip_read_info->stream.total_out += uDoCopy;
+ iRead += uDoCopy;
+ }
+ else
+ {
+ uLong uTotalOutBefore,uTotalOutAfter;
+ const Bytef *bufBefore;
+ uLong uOutThis;
+ int flush=Z_SYNC_FLUSH;
+
+ uTotalOutBefore = pfile_in_zip_read_info->stream.total_out;
+ bufBefore = pfile_in_zip_read_info->stream.next_out;
+
+ /*
+ if ((pfile_in_zip_read_info->rest_read_uncompressed ==
+ pfile_in_zip_read_info->stream.avail_out) &&
+ (pfile_in_zip_read_info->rest_read_compressed == 0))
+ flush = Z_FINISH;
+ */
+ err=inflate(&pfile_in_zip_read_info->stream,flush);
+
+ if ((err>=0) && (pfile_in_zip_read_info->stream.msg!=NULL))
+ err = Z_DATA_ERROR;
+
+ uTotalOutAfter = pfile_in_zip_read_info->stream.total_out;
+ uOutThis = uTotalOutAfter-uTotalOutBefore;
+
+ pfile_in_zip_read_info->crc32 =
+ crc32(pfile_in_zip_read_info->crc32,bufBefore,
+ (uInt)(uOutThis));
+
+ pfile_in_zip_read_info->rest_read_uncompressed -=
+ uOutThis;
+
+ iRead += (uInt)(uTotalOutAfter - uTotalOutBefore);
+
+ if (err==Z_STREAM_END)
+ return (iRead==0) ? UNZ_EOF : iRead;
+ if (err!=Z_OK)
+ break;
+ }
+ }
+
+ if (err==Z_OK)
+ return iRead;
+ return err;
+}
+
+
+/*
+ Give the current position in uncompressed data
+*/
+extern z_off_t ZEXPORT unztell (file)
+ unzFile file;
+{
+ unz_s* s;
+ file_in_zip_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+ return (z_off_t)pfile_in_zip_read_info->stream.total_out;
+}
+
+
+/*
+ return 1 if the end of file was reached, 0 elsewhere
+*/
+extern int ZEXPORT unzeof (file)
+ unzFile file;
+{
+ unz_s* s;
+ file_in_zip_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+ if (pfile_in_zip_read_info->rest_read_uncompressed == 0)
+ return 1;
+ else
+ return 0;
+}
+
+
+
+/*
+ Read extra field from the current file (opened by unzOpenCurrentFile)
+ This is the local-header version of the extra field (sometimes, there is
+ more info in the local-header version than in the central-header)
+
+ if buf==NULL, it return the size of the local extra field that can be read
+
+ if buf!=NULL, len is the size of the buffer, the extra header is copied in
+ buf.
+ the return value is the number of bytes copied in buf, or (if <0)
+ the error code
+*/
+extern int ZEXPORT unzGetLocalExtrafield (file,buf,len)
+ unzFile file;
+ voidp buf;
+ unsigned len;
+{
+ unz_s* s;
+ file_in_zip_read_info_s* pfile_in_zip_read_info;
+ uInt read_now;
+ uLong size_to_read;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+ size_to_read = (pfile_in_zip_read_info->size_local_extrafield -
+ pfile_in_zip_read_info->pos_local_extrafield);
+
+ if (buf==NULL)
+ return (int)size_to_read;
+
+ if (len>size_to_read)
+ read_now = (uInt)size_to_read;
+ else
+ read_now = (uInt)len ;
+
+ if (read_now==0)
+ return 0;
+
+ if (ZSEEK(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ pfile_in_zip_read_info->offset_local_extrafield +
+ pfile_in_zip_read_info->pos_local_extrafield,
+ ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+
+ if (ZREAD(pfile_in_zip_read_info->z_filefunc,
+ pfile_in_zip_read_info->filestream,
+ buf,read_now)!=read_now)
+ return UNZ_ERRNO;
+
+ return (int)read_now;
+}
+
+/*
+ Close the file in zip opened with unzipOpenCurrentFile
+ Return UNZ_CRCERROR if all the file was read but the CRC is not good
+*/
+extern int ZEXPORT unzCloseCurrentFile (file)
+ unzFile file;
+{
+ int err=UNZ_OK;
+
+ unz_s* s;
+ file_in_zip_read_info_s* pfile_in_zip_read_info;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ pfile_in_zip_read_info=s->pfile_in_zip_read;
+
+ if (pfile_in_zip_read_info==NULL)
+ return UNZ_PARAMERROR;
+
+
+ if ((pfile_in_zip_read_info->rest_read_uncompressed == 0) &&
+ (!pfile_in_zip_read_info->raw))
+ {
+ if (pfile_in_zip_read_info->crc32 != pfile_in_zip_read_info->crc32_wait)
+ err=UNZ_CRCERROR;
+ }
+
+
+ TRYFREE(pfile_in_zip_read_info->read_buffer);
+ pfile_in_zip_read_info->read_buffer = NULL;
+ if (pfile_in_zip_read_info->stream_initialised)
+ inflateEnd(&pfile_in_zip_read_info->stream);
+
+ pfile_in_zip_read_info->stream_initialised = 0;
+ TRYFREE(pfile_in_zip_read_info);
+
+ s->pfile_in_zip_read=NULL;
+
+ return err;
+}
+
+
+/*
+ Get the global comment string of the ZipFile, in the szComment buffer.
+ uSizeBuf is the size of the szComment buffer.
+ return the number of byte copied or an error code <0
+*/
+extern int ZEXPORT unzGetGlobalComment (file, szComment, uSizeBuf)
+ unzFile file;
+ char *szComment;
+ uLong uSizeBuf;
+{
+ unz_s* s;
+ uLong uReadThis ;
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+
+ uReadThis = uSizeBuf;
+ if (uReadThis>s->gi.size_comment)
+ uReadThis = s->gi.size_comment;
+
+ if (ZSEEK(s->z_filefunc,s->filestream,s->central_pos+22,ZLIB_FILEFUNC_SEEK_SET)!=0)
+ return UNZ_ERRNO;
+
+ if (uReadThis>0)
+ {
+ *szComment='\0';
+ if (ZREAD(s->z_filefunc,s->filestream,szComment,uReadThis)!=uReadThis)
+ return UNZ_ERRNO;
+ }
+
+ if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
+ *(szComment+s->gi.size_comment)='\0';
+ return (int)uReadThis;
+}
+
+/* Additions by RX '2004 */
+extern uLong ZEXPORT unzGetOffset (file)
+ unzFile file;
+{
+ unz_s* s;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+ if (!s->current_file_ok)
+ return 0;
+ if (s->gi.number_entry != 0 && s->gi.number_entry != 0xffff)
+ if (s->num_file==s->gi.number_entry)
+ return 0;
+ return s->pos_in_central_dir;
+}
+
+extern int ZEXPORT unzSetOffset (file, pos)
+ unzFile file;
+ uLong pos;
+{
+ unz_s* s;
+ int err;
+
+ if (file==NULL)
+ return UNZ_PARAMERROR;
+ s=(unz_s*)file;
+
+ s->pos_in_central_dir = pos;
+ s->num_file = s->gi.number_entry; /* hack */
+ err = unzlocal_GetCurrentFileInfoInternal(file,&s->cur_file_info,
+ &s->cur_file_info_internal,
+ NULL,0,NULL,0,NULL,0);
+ s->current_file_ok = (err == UNZ_OK);
+ return err;
+}
projects / vlc / blobdiff