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@@ -1,1324 +0,0 @@
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-/* unzip.c -- IO on .zip files using zlib
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- Version 0.15 beta, Mar 19th, 1998,
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-
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- Read unzip.h for more info
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-*/
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-
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-#if HAVE_CONFIG_H
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-# include <config.h>
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-#endif
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-
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-#if (defined PHYSFS_SUPPORTS_ZIP)
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-
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-#include <stdio.h>
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-#include <stdlib.h>
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-#include <string.h>
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-#include "zlib.h"
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-#include "unzip.h"
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-
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-#define __PHYSICSFS_INTERNAL__
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-#include "physfs_internal.h"
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-
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-#ifdef STDC
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-# include <stddef.h>
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-# include <string.h>
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-# include <stdlib.h>
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-#endif
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-#ifdef NO_ERRNO_H
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- extern int errno;
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-#else
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-# include <errno.h>
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-#endif
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-
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-
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-#ifndef local
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-# define local static
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-#endif
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-/* compile with -Dlocal if your debugger can't find static symbols */
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-
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-
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-
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-#if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES) && \
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- !defined(CASESENSITIVITYDEFAULT_NO)
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-#define CASESENSITIVITYDEFAULT_NO
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-#endif
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-
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-
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-#ifndef UNZ_BUFSIZE
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-#define UNZ_BUFSIZE (16384)
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-#endif
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-
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-#ifndef UNZ_MAXFILENAMEINZIP
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-#define UNZ_MAXFILENAMEINZIP (256)
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-#endif
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-
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-#ifndef ALLOC
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-# define ALLOC(size) (malloc(size))
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-#endif
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-#ifndef TRYFREE
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-# define TRYFREE(p) {if (p) free(p);}
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-#endif
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-
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-#define SIZECENTRALDIRITEM (0x2e)
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-#define SIZEZIPLOCALHEADER (0x1e)
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-
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-
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-/* I've found an old Unix (a SunOS 4.1.3_U1) without all SEEK_* defined.... */
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-
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-#ifndef SEEK_CUR
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-#define SEEK_CUR 1
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-#endif
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-
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-#ifndef SEEK_END
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-#define SEEK_END 2
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-#endif
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-
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-#ifndef SEEK_SET
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-#define SEEK_SET 0
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-#endif
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-
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-const char unz_copyright[] =
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- " unzip 0.15 Copyright 1998 Gilles Vollant ";
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-
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-/* unz_file_info_interntal contain internal info about a file in zipfile*/
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-typedef struct unz_file_info_internal_s
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-{
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- uLong offset_curfile;/* relative offset of local header 4 bytes */
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-} unz_file_info_internal;
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-
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-
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-/* file_in_zip_read_info_s contain internal information about a file in zipfile,
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- when reading and decompress it */
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-typedef struct
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-{
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- char *read_buffer; /* internal buffer for compressed data */
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- z_stream stream; /* zLib stream structure for inflate */
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-
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- uLong pos_in_zipfile; /* position in byte on the zipfile, for seek*/
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- uLong stream_initialised; /* flag set if stream structure is initialised*/
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-
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- uLong offset_local_extrafield;/* offset of the local extra field */
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- uInt size_local_extrafield;/* size of the local extra field */
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- uLong pos_local_extrafield; /* position in the local extra field in read*/
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-
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- uLong crc32; /* crc32 of all data uncompressed */
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- uLong crc32_wait; /* crc32 we must obtain after decompress all */
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- uLong rest_read_compressed; /* number of byte to be decompressed */
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- uLong rest_read_uncompressed;/*number of byte to be obtained after decomp*/
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- void* file; /* io structore of the zipfile */
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- uLong compression_method; /* compression method (0==store) */
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- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
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-} file_in_zip_read_info_s;
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-
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-
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-/* unz_s contain internal information about the zipfile
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-*/
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-typedef struct
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-{
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- void* file; /* io structore of the zipfile */
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- unz_global_info gi; /* public global information */
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- uLong byte_before_the_zipfile;/* byte before the zipfile, (>0 for sfx)*/
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- uLong num_file; /* number of the current file in the zipfile*/
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- uLong pos_in_central_dir; /* pos of the current file in the central dir*/
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- uLong current_file_ok; /* flag about the usability of the current file*/
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- uLong central_pos; /* position of the beginning of the central dir*/
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-
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- uLong size_central_dir; /* size of the central directory */
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- uLong offset_central_dir; /* offset of start of central directory with
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- respect to the starting disk number */
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-
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- unz_file_info cur_file_info; /* public info about the current file in zip*/
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- unz_file_info_internal cur_file_info_internal; /* private info about it*/
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- file_in_zip_read_info_s* pfile_in_zip_read; /* structure about the current
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- file if we are decompressing it */
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-} unz_s;
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-
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-
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-/* ===========================================================================
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- Read a byte from a gz_stream; update next_in and avail_in. Return EOF
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- for end of file.
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- IN assertion: the stream s has been sucessfully opened for reading.
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-*/
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-
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-
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-#if 0 /* not actually used anymore, at this point. */
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-local int unzlocal_getByte(fin,pi)
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- void *fin;
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- int *pi;
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-{
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- PHYSFS_uint8 c;
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- PHYSFS_sint64 err = __PHYSFS_platformRead(fin, &c, sizeof (c), 1);
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- if (err==1)
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- {
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- *pi = (int)c;
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- return UNZ_OK;
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- }
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- else
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- {
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- if (__PHYSFS_platformEOF(fin))
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- return UNZ_EOF;
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- else
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- return UNZ_ERRNO;
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- }
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-}
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-#endif
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-
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-/* ===========================================================================
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- Reads a long in LSB order from the given gz_stream. Sets
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-*/
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-local int unzlocal_getShort (fin,pX)
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- void* fin;
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- uLong *pX;
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-{
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- PHYSFS_uint16 val;
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- PHYSFS_sint64 err = __PHYSFS_platformRead(fin, &val, sizeof (val), 1);
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- if (err==1)
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- {
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- *pX = (uLong) PHYSFS_swapULE16(val);
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- return UNZ_OK;
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- }
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- else
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- {
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- *pX = 0;
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- if (__PHYSFS_platformEOF(fin))
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- return UNZ_EOF;
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- else
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- return UNZ_ERRNO;
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- }
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-
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- return(UNZ_ERRNO); /* shouldn't ever hit this. */
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-}
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-
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-local int unzlocal_getLong (fin,pX)
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- void* fin;
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- uLong *pX;
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-{
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- PHYSFS_uint32 val;
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- PHYSFS_sint64 err = __PHYSFS_platformRead(fin, &val, sizeof (val), 1);
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- if (err==1)
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- {
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- *pX = (uLong) PHYSFS_swapULE32(val);
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- return UNZ_OK;
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- }
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- else
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- {
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- *pX = 0;
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- if (__PHYSFS_platformEOF(fin))
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- return UNZ_EOF;
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- else
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- return UNZ_ERRNO;
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- }
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-
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- return(UNZ_ERRNO); /* shouldn't ever hit this. */
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-}
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-
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-
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-/* My own strcmpi / strcasecmp */
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-#if 1
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-
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-#define strcmpcasenosensitive_internal(x,y) __PHYSFS_platformStricmp(x,y)
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-
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-#else
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-local int strcmpcasenosensitive_internal (fileName1,fileName2)
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- const char* fileName1;
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- const char* fileName2;
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-{
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- for (;;)
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- {
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- char c1=*(fileName1++);
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- char c2=*(fileName2++);
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- if ((c1>='a') && (c1<='z'))
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- c1 -= 0x20;
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- if ((c2>='a') && (c2<='z'))
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- c2 -= 0x20;
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- if (c1=='\0')
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- return ((c2=='\0') ? 0 : -1);
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- if (c2=='\0')
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- return 1;
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- if (c1<c2)
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- return -1;
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- if (c1>c2)
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- return 1;
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- }
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-}
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-#endif
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-
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-#ifdef CASESENSITIVITYDEFAULT_NO
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-#define CASESENSITIVITYDEFAULTVALUE 2
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-#else
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-#define CASESENSITIVITYDEFAULTVALUE 1
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-#endif
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-
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-#ifndef STRCMPCASENOSENTIVEFUNCTION
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-#define STRCMPCASENOSENTIVEFUNCTION strcmpcasenosensitive_internal
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-#endif
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-
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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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-*/
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-extern int ZEXPORT unzStringFileNameCompare (fileName1,fileName2,iCaseSensitivity)
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- const char* fileName1;
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- const char* fileName2;
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- int iCaseSensitivity;
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-{
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- if (iCaseSensitivity==0)
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- iCaseSensitivity=CASESENSITIVITYDEFAULTVALUE;
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-
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- if (iCaseSensitivity==1)
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- return strcmp(fileName1,fileName2);
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-
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- return STRCMPCASENOSENTIVEFUNCTION(fileName1,fileName2);
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-}
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-
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-#define BUFREADCOMMENT (0x400)
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-
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-/*
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- Locate the Central directory of a zipfile (at the end, just before
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- the global comment)
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-*/
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-local uLong unzlocal_SearchCentralDir(fin)
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- void *fin;
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-{
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- unsigned char* buf;
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- uLong uSizeFile;
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- uLong uBackRead;
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- uLong uMaxBack=0xffff; /* maximum size of global comment */
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- uLong uPosFound=0;
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-
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- uSizeFile = (uLong) __PHYSFS_platformFileLength( fin );
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-
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- if (uMaxBack>uSizeFile)
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- uMaxBack = uSizeFile;
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-
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- buf = (unsigned char*)ALLOC(BUFREADCOMMENT+4);
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- if (buf==NULL)
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- return 0;
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-
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- uBackRead = 4;
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- while (uBackRead<uMaxBack)
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- {
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- uLong uReadSize,uReadPos ;
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- int i;
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- if (uBackRead+BUFREADCOMMENT>uMaxBack)
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- uBackRead = uMaxBack;
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- else
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- uBackRead+=BUFREADCOMMENT;
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- uReadPos = uSizeFile-uBackRead ;
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-
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- uReadSize = ((BUFREADCOMMENT+4) < (uSizeFile-uReadPos)) ?
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- (BUFREADCOMMENT+4) : (uSizeFile-uReadPos);
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- if (!__PHYSFS_platformSeek(fin,uReadPos))
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- break;
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-
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- if (__PHYSFS_platformRead(fin,buf,(uInt)uReadSize,1)!=1)
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- break;
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-
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- for (i=(int)uReadSize-3; (i--)>0;)
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- {
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- if (((*(buf+i))==0x50) && ((*(buf+i+1))==0x4b) &&
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- ((*(buf+i+2))==0x05) && ((*(buf+i+3))==0x06))
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- {
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- uPosFound = uReadPos+i;
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- break;
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- }
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- }
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-
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- if (uPosFound!=0)
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- break;
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- }
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- TRYFREE(buf);
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- return uPosFound;
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-}
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-
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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:\\test\\zlib109.zip" or on an Unix computer
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- "zlib/zlib109.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 unzFile ZEXPORT unzOpen (path)
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- const char *path;
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-{
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- unz_s us;
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- unz_s *s;
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- uLong central_pos,uL;
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- void* fin ;
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-
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- uLong number_disk; /* number of the current dist, used for
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- spaning ZIP, unsupported, always 0*/
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- uLong number_disk_with_CD; /* number the the disk with central dir, used
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- for spaning ZIP, unsupported, always 0*/
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- uLong number_entry_CD; /* total number of entries in
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- the central dir
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- (same than number_entry on nospan) */
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-
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- int err=UNZ_OK;
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-
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- if (unz_copyright[0]!=' ')
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- return NULL;
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-
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- fin=__PHYSFS_platformOpenRead(path);
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- if (fin==NULL)
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- return NULL;
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-
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- central_pos = unzlocal_SearchCentralDir(fin);
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- if (central_pos==0)
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- err=UNZ_ERRNO;
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-
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- if (!__PHYSFS_platformSeek(fin,central_pos))
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- err=UNZ_ERRNO;
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-
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- /* the signature, already checked */
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- if (unzlocal_getLong(fin,&uL)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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- /* number of this disk */
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- if (unzlocal_getShort(fin,&number_disk)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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- /* number of the disk with the start of the central directory */
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- if (unzlocal_getShort(fin,&number_disk_with_CD)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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- /* total number of entries in the central dir on this disk */
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- if (unzlocal_getShort(fin,&us.gi.number_entry)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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- /* total number of entries in the central dir */
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- if (unzlocal_getShort(fin,&number_entry_CD)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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- if ((number_entry_CD!=us.gi.number_entry) ||
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- (number_disk_with_CD!=0) ||
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- (number_disk!=0))
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- err=UNZ_BADZIPFILE;
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-
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- /* size of the central directory */
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- if (unzlocal_getLong(fin,&us.size_central_dir)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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- /* offset of start of central directory with respect to the
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- starting disk number */
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- if (unzlocal_getLong(fin,&us.offset_central_dir)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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- /* zipfile comment length */
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- if (unzlocal_getShort(fin,&us.gi.size_comment)!=UNZ_OK)
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- err=UNZ_ERRNO;
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-
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|
|
- if ((central_pos<us.offset_central_dir+us.size_central_dir) &&
|
|
|
- (err==UNZ_OK))
|
|
|
- err=UNZ_BADZIPFILE;
|
|
|
-
|
|
|
- if (err!=UNZ_OK)
|
|
|
- {
|
|
|
- __PHYSFS_platformClose(fin);
|
|
|
- return NULL;
|
|
|
- }
|
|
|
-
|
|
|
- us.file=fin;
|
|
|
- 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;
|
|
|
-
|
|
|
-
|
|
|
- s=(unz_s*)ALLOC(sizeof(unz_s));
|
|
|
- *s=us;
|
|
|
- unzGoToFirstFile((unzFile)s);
|
|
|
- return (unzFile)s;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/*
|
|
|
- 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);
|
|
|
-
|
|
|
- __PHYSFS_platformClose(s->file);
|
|
|
- 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 (!__PHYSFS_platformSeek(s->file,s->pos_in_central_dir+s->byte_before_the_zipfile))
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
-
|
|
|
- /* we check the magic */
|
|
|
- if (err==UNZ_OK)
|
|
|
- {
|
|
|
- if (unzlocal_getLong(s->file,&uMagic) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
- else if (uMagic!=0x02014b50)
|
|
|
- err=UNZ_BADZIPFILE;
|
|
|
- }
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.version) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.version_needed) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.flag) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.compression_method) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getLong(s->file,&file_info.dosDate) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- unzlocal_DosDateToTmuDate(file_info.dosDate,&file_info.tmu_date);
|
|
|
-
|
|
|
- if (unzlocal_getLong(s->file,&file_info.crc) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getLong(s->file,&file_info.compressed_size) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getLong(s->file,&file_info.uncompressed_size) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.size_filename) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.size_file_extra) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.size_file_comment) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.disk_num_start) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&file_info.internal_fa) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getLong(s->file,&file_info.external_fa) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getLong(s->file,&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 (__PHYSFS_platformRead(s->file,szFileName,(uInt)uSizeRead,1)!=1)
|
|
|
- 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)
|
|
|
- {
|
|
|
- PHYSFS_sint64 curpos = __PHYSFS_platformTell(s->file);
|
|
|
- if ((curpos >= 0) && (__PHYSFS_platformSeek(s->file,lSeek+curpos)))
|
|
|
- lSeek=0;
|
|
|
- else
|
|
|
- err=UNZ_ERRNO;
|
|
|
- }
|
|
|
- if ((file_info.size_file_extra>0) && (extraFieldBufferSize>0))
|
|
|
- {
|
|
|
- if (__PHYSFS_platformRead(s->file,extraField,(uInt)uSizeRead,1)!=1)
|
|
|
- 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)
|
|
|
- {
|
|
|
- PHYSFS_sint64 curpos = __PHYSFS_platformTell(s->file);
|
|
|
- if (__PHYSFS_platformSeek(s->file,lSeek+curpos))
|
|
|
- lSeek=0;
|
|
|
- else
|
|
|
- err=UNZ_ERRNO;
|
|
|
- }
|
|
|
- if ((file_info.size_file_comment>0) && (commentBufferSize>0))
|
|
|
- {
|
|
|
- if (__PHYSFS_platformRead(s->file,szComment,(uInt)uSizeRead,1)!=1)
|
|
|
- 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->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;
|
|
|
-
|
|
|
-
|
|
|
- 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;
|
|
|
-
|
|
|
- num_fileSaved = s->num_file;
|
|
|
- pos_in_central_dirSaved = s->pos_in_central_dir;
|
|
|
-
|
|
|
- err = unzGoToFirstFile(file);
|
|
|
-
|
|
|
- while (err == UNZ_OK)
|
|
|
- {
|
|
|
- char szCurrentFileName[UNZ_MAXFILENAMEINZIP+1];
|
|
|
- unzGetCurrentFileInfo(file,NULL,
|
|
|
- szCurrentFileName,sizeof(szCurrentFileName)-1,
|
|
|
- NULL,0,NULL,0);
|
|
|
- if (unzStringFileNameCompare(szCurrentFileName,
|
|
|
- szFileName,iCaseSensitivity)==0)
|
|
|
- return UNZ_OK;
|
|
|
- err = unzGoToNextFile(file);
|
|
|
- }
|
|
|
-
|
|
|
- s->num_file = num_fileSaved ;
|
|
|
- s->pos_in_central_dir = pos_in_central_dirSaved ;
|
|
|
- return err;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/*
|
|
|
- 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 (!__PHYSFS_platformSeek(s->file,
|
|
|
- s->cur_file_info_internal.offset_curfile +
|
|
|
- s->byte_before_the_zipfile))
|
|
|
- {
|
|
|
- return UNZ_ERRNO;
|
|
|
- }
|
|
|
-
|
|
|
- if (err==UNZ_OK)
|
|
|
- {
|
|
|
- if (unzlocal_getLong(s->file,&uMagic) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
- else if (uMagic!=0x04034b50)
|
|
|
- err=UNZ_BADZIPFILE;
|
|
|
- }
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&uData) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-/*
|
|
|
- else if ((err==UNZ_OK) && (uData!=s->cur_file_info.wVersion))
|
|
|
- err=UNZ_BADZIPFILE;
|
|
|
-*/
|
|
|
- if (unzlocal_getShort(s->file,&uFlags) != UNZ_OK)
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getShort(s->file,&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->file,&uData) != UNZ_OK) /* date/time */
|
|
|
- err=UNZ_ERRNO;
|
|
|
-
|
|
|
- if (unzlocal_getLong(s->file,&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->file,&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->file,&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->file,&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->file,&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 unzOpenCurrentFile (file)
|
|
|
- unzFile file;
|
|
|
-{
|
|
|
- int err=UNZ_OK;
|
|
|
- int Store;
|
|
|
- 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 */
|
|
|
-
|
|
|
- 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;
|
|
|
-
|
|
|
- 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 ((s->cur_file_info.compression_method!=0) &&
|
|
|
- (s->cur_file_info.compression_method!=Z_DEFLATED))
|
|
|
- err=UNZ_BADZIPFILE;
|
|
|
- Store = s->cur_file_info.compression_method==0;
|
|
|
-
|
|
|
- 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->file=s->file;
|
|
|
- pfile_in_zip_read_info->byte_before_the_zipfile=s->byte_before_the_zipfile;
|
|
|
-
|
|
|
- pfile_in_zip_read_info->stream.total_out = 0;
|
|
|
-
|
|
|
- if (!Store)
|
|
|
- {
|
|
|
- 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;
|
|
|
-
|
|
|
- err=inflateInit2(&pfile_in_zip_read_info->stream, -MAX_WBITS);
|
|
|
- if (err == Z_OK)
|
|
|
- pfile_in_zip_read_info->stream_initialised=1;
|
|
|
- /* 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;
|
|
|
- return UNZ_OK;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-/*
|
|
|
- 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->stream.avail_out =
|
|
|
- (uInt)pfile_in_zip_read_info->rest_read_uncompressed;
|
|
|
-
|
|
|
- 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 (!__PHYSFS_platformSeek(pfile_in_zip_read_info->file,
|
|
|
- pfile_in_zip_read_info->pos_in_zipfile +
|
|
|
- pfile_in_zip_read_info->byte_before_the_zipfile))
|
|
|
- return UNZ_ERRNO;
|
|
|
- if (__PHYSFS_platformRead(pfile_in_zip_read_info->file,
|
|
|
- pfile_in_zip_read_info->read_buffer,
|
|
|
- uReadThis,1)!=1)
|
|
|
- return UNZ_ERRNO;
|
|
|
- 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)
|
|
|
- {
|
|
|
- uInt uDoCopy,i ;
|
|
|
- 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);
|
|
|
-
|
|
|
- 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 (!__PHYSFS_platformSeek(pfile_in_zip_read_info->file,
|
|
|
- pfile_in_zip_read_info->offset_local_extrafield +
|
|
|
- pfile_in_zip_read_info->pos_local_extrafield))
|
|
|
- return UNZ_ERRNO;
|
|
|
-
|
|
|
- if (__PHYSFS_platformRead(pfile_in_zip_read_info->file,buf,(uInt)size_to_read,1)!=1)
|
|
|
- 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)
|
|
|
- {
|
|
|
- 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;
|
|
|
-{
|
|
|
- /*int err=UNZ_OK;*/
|
|
|
- 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 (!__PHYSFS_platformSeek(s->file,s->central_pos+22))
|
|
|
- return UNZ_ERRNO;
|
|
|
-
|
|
|
- if (uReadThis>0)
|
|
|
- {
|
|
|
- *szComment='\0';
|
|
|
- if (__PHYSFS_platformRead(s->file,szComment,(uInt)uReadThis,1)!=1)
|
|
|
- return UNZ_ERRNO;
|
|
|
- }
|
|
|
-
|
|
|
- if ((szComment != NULL) && (uSizeBuf > s->gi.size_comment))
|
|
|
- *(szComment+s->gi.size_comment)='\0';
|
|
|
- return (int)uReadThis;
|
|
|
-}
|
|
|
-
|
|
|
-#endif /* defined PHYSFS_SUPPORTS_ZIP */
|
|
|
-
|
|
|
-/* end of unzip.c ... */
|
|
|
-
|
Ryan C. Gordon