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@@ -1,1602 +0,0 @@
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-/* unzip.c -- IO for uncompress .zip files using zlib
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- Version 1.01e, February 12th, 2005
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-
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- Copyright (C) 1998-2005 Gilles Vollant
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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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-/* Decryption code comes from crypt.c by Info-ZIP but has been greatly reduced in terms of
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-compatibility with older software. The following is from the original crypt.c. Code
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-woven in by Terry Thorsen 1/2003.
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-*/
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-/*
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- Copyright (c) 1990-2000 Info-ZIP. All rights reserved.
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-
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- See the accompanying file LICENSE, version 2000-Apr-09 or later
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- (the contents of which are also included in zip.h) for terms of use.
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- If, for some reason, all these files are missing, the Info-ZIP license
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- also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
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-*/
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-/*
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- crypt.c (full version) by Info-ZIP. Last revised: [see crypt.h]
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-
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- The encryption/decryption parts of this source code (as opposed to the
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- non-echoing password parts) were originally written in Europe. The
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- whole source package can be freely distributed, including from the USA.
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- (Prior to January 2000, re-export from the US was a violation of US law.)
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- */
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-
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-/*
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- This encryption code is a direct transcription of the algorithm from
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- Roger Schlafly, described by Phil Katz in the file appnote.txt. This
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- file (appnote.txt) is distributed with the PKZIP program (even in the
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- version without encryption capabilities).
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- */
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-
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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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-#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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-#ifndef CASESENSITIVITYDEFAULT_NO
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-# if !defined(unix) && !defined(CASESENSITIVITYDEFAULT_YES)
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-# define CASESENSITIVITYDEFAULT_NO
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-# endif
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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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-
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-
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-const char unz_copyright[] =
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- " unzip 1.01 Copyright 1998-2004 Gilles Vollant - http://www.winimage.com/zLibDll";
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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 fseek*/
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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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- zlib_filefunc_def z_filefunc;
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- voidpf filestream; /* 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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- int raw;
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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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- zlib_filefunc_def z_filefunc;
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- voidpf filestream; /* 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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- int encrypted;
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-# ifndef NOUNCRYPT
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- unsigned long keys[3]; /* keys defining the pseudo-random sequence */
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- const unsigned long* pcrc_32_tab;
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-# endif
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-} unz_s;
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-
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-
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-#ifndef NOUNCRYPT
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-#include "crypt.h"
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-#endif
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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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-local int unzlocal_getByte OF((
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- const zlib_filefunc_def* pzlib_filefunc_def,
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- voidpf filestream,
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- int *pi));
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-
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-local int unzlocal_getByte(pzlib_filefunc_def,filestream,pi)
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- const zlib_filefunc_def* pzlib_filefunc_def;
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- voidpf filestream;
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- int *pi;
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-{
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- unsigned char c;
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- int err = (int)ZREAD(*pzlib_filefunc_def,filestream,&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 (ZERROR(*pzlib_filefunc_def,filestream))
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- return UNZ_ERRNO;
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- else
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- return UNZ_EOF;
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- }
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-}
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-
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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 OF((
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- const zlib_filefunc_def* pzlib_filefunc_def,
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- voidpf filestream,
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- uLong *pX));
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-
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-local int unzlocal_getShort (pzlib_filefunc_def,filestream,pX)
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- const zlib_filefunc_def* pzlib_filefunc_def;
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- voidpf filestream;
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- uLong *pX;
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-{
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- uLong x ;
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- int i;
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- int err;
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-
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- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
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- x = (uLong)i;
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-
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- if (err==UNZ_OK)
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- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
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- x += ((uLong)i)<<8;
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-
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- if (err==UNZ_OK)
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- *pX = x;
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- else
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- *pX = 0;
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- return err;
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-}
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-
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-local int unzlocal_getLong OF((
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- const zlib_filefunc_def* pzlib_filefunc_def,
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- voidpf filestream,
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- uLong *pX));
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-
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-local int unzlocal_getLong (pzlib_filefunc_def,filestream,pX)
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- const zlib_filefunc_def* pzlib_filefunc_def;
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- voidpf filestream;
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- uLong *pX;
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-{
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- uLong x ;
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- int i;
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- int err;
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-
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- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
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- x = (uLong)i;
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-
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- if (err==UNZ_OK)
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- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
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- x += ((uLong)i)<<8;
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-
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- if (err==UNZ_OK)
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- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
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- x += ((uLong)i)<<16;
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-
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- if (err==UNZ_OK)
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- err = unzlocal_getByte(pzlib_filefunc_def,filestream,&i);
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- x += ((uLong)i)<<24;
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-
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- if (err==UNZ_OK)
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- *pX = x;
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- else
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- *pX = 0;
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- return err;
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-}
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-
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-
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-/* My own strcmpi / strcasecmp */
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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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-
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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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-#ifndef BUFREADCOMMENT
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-#define BUFREADCOMMENT (0x400)
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-#endif
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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 OF((
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- const zlib_filefunc_def* pzlib_filefunc_def,
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- voidpf filestream));
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-
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-local uLong unzlocal_SearchCentralDir(pzlib_filefunc_def,filestream)
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- const zlib_filefunc_def* pzlib_filefunc_def;
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- voidpf filestream;
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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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- if (ZSEEK(*pzlib_filefunc_def,filestream,0,ZLIB_FILEFUNC_SEEK_END) != 0)
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- return 0;
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-
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-
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- uSizeFile = ZTELL(*pzlib_filefunc_def,filestream);
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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 ;
|
|
|
|
- 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;
|
|
|
|
-{
|
|
|
|
- // int err=UNZ_OK; // Unused [Lance]
|
|
|
|
- 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;
|
|
|
|
-}
|
|
|