503eff6421
I'm not sure if this will break anything. It shouldn't do, but it might. Not everything is ported over yet. Ideally there would be no more use of fopen anywhere else in the engine, and com_gamedir would be made static to fs.c There are a couple of other changes too. http/ftp stuff is currently disabled. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@1728 fc73d0e0-1445-4013-8a0c-d673dee63da5
279 lines
10 KiB
C
279 lines
10 KiB
C
/* unzip.h -- IO for uncompress .zip files using zlib
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Version 0.15 beta, Mar 19th, 1998,
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Copyright (C) 1998 Gilles Vollant
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This unzip package allow extract file from .ZIP file, compatible with PKZip 2.04g
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WinZip, InfoZip tools and compatible.
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Encryption and multi volume ZipFile (span) are not supported.
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Old compressions used by old PKZip 1.x are not supported
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THIS IS AN ALPHA VERSION. AT THIS STAGE OF DEVELOPPEMENT, SOMES API OR STRUCTURE
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CAN CHANGE IN FUTURE VERSION !!
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I WAIT FEEDBACK at mail info@winimage.com
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Visit also http://www.winimage.com/zLibDll/unzip.htm for evolution
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Condition of use and distribution are the same than zlib :
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/* for more info about .ZIP format, see
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ftp://ftp.cdrom.com/pub/infozip/doc/appnote-970311-iz.zip
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PkWare has also a specification at :
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ftp://ftp.pkware.com/probdesc.zip */
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#ifndef _unz_H
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#define _unz_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef _ZLIB_H
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#include "zlib.h"
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#endif
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#if defined(STRICTUNZIP) || defined(STRICTZIPUNZIP)
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/* like the STRICT of WIN32, we define a pointer that cannot be converted
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from (void*) without cast */
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typedef struct TagunzFile__ { int unused; } unzFile__;
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typedef unzFile__ *unzFile;
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#else
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typedef voidp unzFile;
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#endif
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#define UNZ_OK (0)
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#define UNZ_END_OF_LIST_OF_FILE (-100)
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#define UNZ_ERRNO (Z_ERRNO)
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#define UNZ_EOF (0)
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#define UNZ_PARAMERROR (-102)
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#define UNZ_BADZIPFILE (-103)
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#define UNZ_INTERNALERROR (-104)
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#define UNZ_CRCERROR (-105)
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/* tm_unz contain date/time info */
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//typedef struct tm_unz_s
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//{
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// uInt tm_sec; /* seconds after the minute - [0,59] */
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// uInt tm_min; /* minutes after the hour - [0,59] */
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// uInt tm_hour; /* hours since midnight - [0,23] */
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// uInt tm_mday; /* day of the month - [1,31] */
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// uInt tm_mon; /* months since January - [0,11] */
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// uInt tm_year; /* years - [1980..2044] */
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//} tm_unz;
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/* unz_global_info structure contain global data about the ZIPfile
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These data comes from the end of central dir */
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typedef struct unz_global_info_s
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{
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unsigned long number_entry; /* total number of entries in
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the central dir on this disk */
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unsigned long size_comment; /* size of the global comment of the zipfile */
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} unz_global_info;
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/* unz_file_info contain information about a file in the zipfile */
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#pragma pack(push, 1)
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typedef struct unz_file_info_s
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{
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unsigned short version; /* version made by 2 bytes */
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unsigned short version_needed; /* version needed to extract 2 bytes */
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unsigned short flag; /* general purpose bit flag 2 bytes */
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unsigned short compression_method; /* compression method 2 bytes */
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unsigned long dosDate; /* last mod file date in Dos fmt 4 bytes */
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unsigned long crc; /* crc-32 4 bytes */
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unsigned long compressed_size; /* compressed size 4 bytes */
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unsigned long uncompressed_size; /* uncompressed size 4 bytes */
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unsigned short size_filename; /* filename length 2 bytes */
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unsigned short size_file_extra; /* extra field length 2 bytes */
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unsigned short size_file_comment; /* file comment length 2 bytes */
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unsigned short disk_num_start; /* disk number start 2 bytes */
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unsigned short internal_fa; /* internal file attributes 2 bytes */
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unsigned long external_fa; /* external file attributes 4 bytes */
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// tm_unz tmu_date;
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unsigned long offset, c_offset;
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} unz_file_info;
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#pragma pack(pop)
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extern int ZEXPORT unzStringFileNameCompare OF ((const char* fileName1,
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const char* fileName2,
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int iCaseSensitivity));
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/*
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Compare two filename (fileName1,fileName2).
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If iCaseSenisivity = 1, comparision is case sensitivity (like strcmp)
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If iCaseSenisivity = 2, comparision is not case sensitivity (like strcmpi
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or strcasecmp)
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If iCaseSenisivity = 0, case sensitivity is defaut of your operating system
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(like 1 on Unix, 2 on Windows)
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*/
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extern unzFile ZEXPORT unzOpen OF((vfsfile_t *fin));
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/*
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Open a Zip file. path contain the full pathname (by example,
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on a Windows NT computer "c:\\zlib\\zlib111.zip" or on an Unix computer
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"zlib/zlib111.zip".
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If the zipfile cannot be opened (file don't exist or in not valid), the
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return value is NULL.
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Else, the return value is a unzFile Handle, usable with other function
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of this unzip package.
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*/
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extern int ZEXPORT unzClose OF((unzFile file));
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/*
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Close a ZipFile opened with unzipOpen.
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If there is files inside the .Zip opened with unzOpenCurrentFile (see later),
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these files MUST be closed with unzipCloseCurrentFile before call unzipClose.
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return UNZ_OK if there is no problem. */
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extern int ZEXPORT unzGetGlobalInfo OF((unzFile file,
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unz_global_info *pglobal_info));
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/*
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Write info about the ZipFile in the *pglobal_info structure.
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No preparation of the structure is needed
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return UNZ_OK if there is no problem. */
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extern int ZEXPORT unzGetGlobalComment OF((unzFile file,
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char *szComment,
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unsigned long uSizeBuf));
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/*
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Get the global comment string of the ZipFile, in the szComment buffer.
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uSizeBuf is the size of the szComment buffer.
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return the number of byte copied or an error code <0
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*/
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/***************************************************************************/
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/* Unzip package allow you browse the directory of the zipfile */
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extern int ZEXPORT unzGoToFirstFile OF((unzFile file));
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/*
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Set the current file of the zipfile to the first file.
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return UNZ_OK if there is no problem
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*/
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extern int ZEXPORT unzGoToNextFile OF((unzFile file));
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/*
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Set the current file of the zipfile to the next file.
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return UNZ_OK if there is no problem
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return UNZ_END_OF_LIST_OF_FILE if the actual file was the latest.
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*/
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extern int ZEXPORT unzLocateFile OF((unzFile file,
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const char *szFileName,
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int iCaseSensitivity));
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extern int ZEXPORT unzLocateFileMy OF((unzFile file, unsigned long num, unsigned long pos));
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/*
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Try locate the file szFileName in the zipfile.
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For the iCaseSensitivity signification, see unzStringFileNameCompare
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return value :
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UNZ_OK if the file is found. It becomes the current file.
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UNZ_END_OF_LIST_OF_FILE if the file is not found
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*/
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extern int ZEXPORT unzGetCurrentFileInfo OF((unzFile file,
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unz_file_info *pfile_info,
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char *szFileName,
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unsigned long fileNameBufferSize,
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void *extraField,
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unsigned long extraFieldBufferSize,
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char *szComment,
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unsigned long commentBufferSize));
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/*
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Get Info about the current file
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if pfile_info!=NULL, the *pfile_info structure will contain somes info about
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the current file
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if szFileName!=NULL, the filemane string will be copied in szFileName
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(fileNameBufferSize is the size of the buffer)
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if extraField!=NULL, the extra field information will be copied in extraField
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(extraFieldBufferSize is the size of the buffer).
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This is the Central-header version of the extra field
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if szComment!=NULL, the comment string of the file will be copied in szComment
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(commentBufferSize is the size of the buffer)
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*/
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/***************************************************************************/
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/* for reading the content of the current zipfile, you can open it, read data
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from it, and close it (you can close it before reading all the file)
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*/
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extern int ZEXPORT unzOpenCurrentFile OF((unzFile file));
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/*
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Open for reading data the current file in the zipfile.
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If there is no error, the return value is UNZ_OK.
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*/
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extern int ZEXPORT unzCloseCurrentFile OF((unzFile file));
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/*
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Close the file in zip opened with unzOpenCurrentFile
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Return UNZ_CRCERROR if all the file was read but the CRC is not good
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*/
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extern int ZEXPORT unzReadCurrentFile OF((unzFile file,
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voidp buf,
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unsigned len));
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/*
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Read bytes from the current file (opened by unzOpenCurrentFile)
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buf contain buffer where data must be copied
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len the size of buf.
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return the number of byte copied if somes bytes are copied
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return 0 if the end of file was reached
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return <0 with error code if there is an error
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(UNZ_ERRNO for IO error, or zLib error for uncompress error)
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*/
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extern z_off_t ZEXPORT unztell OF((unzFile file));
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/*
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Give the current position in uncompressed data
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*/
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extern int ZEXPORT unzeof OF((unzFile file));
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/*
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return 1 if the end of file was reached, 0 elsewhere
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*/
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extern int ZEXPORT unzGetLocalExtrafield OF((unzFile file,
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voidp buf,
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unsigned len));
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/*
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Read extra field from the current file (opened by unzOpenCurrentFile)
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This is the local-header version of the extra field (sometimes, there is
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more info in the local-header version than in the central-header)
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if buf==NULL, it return the size of the local extra field
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if buf!=NULL, len is the size of the buffer, the extra header is copied in
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buf.
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the return value is the number of bytes copied in buf, or (if <0)
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the error code
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _unz_H */
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