archivers/zip.c
author Ryan C. Gordon <icculus@icculus.org>
Sun, 26 Sep 2004 00:25:04 +0000
changeset 648 5c993684b8f2
parent 646 86be93f03eb7
child 650 298b8bb26775
permissions -rw-r--r--
Cleaned up archiver interface to not deal with DirHandles anymore, which simplifies things, removes some responsibility and code duplication from the archivers, and trims some malloc pressure. Also ripped up the allocation hook code a little. We'll try to screw with memory locking later, since it makes everything ugly and complex. Oh well.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
     1
/*
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
     2
 * ZIP support routines for PhysicsFS.
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
     3
 *
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
     4
 * Please see the file LICENSE in the source's root directory.
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
     5
 *
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
     6
 *  This file written by Ryan C. Gordon, with some peeking at "unzip.c"
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
     7
 *   by Gilles Vollant.
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
     8
 */
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
     9
214
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
    10
#if HAVE_CONFIG_H
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
    11
#  include <config.h>
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
    12
#endif
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
    13
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
    14
#if (defined PHYSFS_SUPPORTS_ZIP)
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
    15
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
    16
#include <stdio.h>
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
    17
#include <stdlib.h>
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
    18
#include <string.h>
566
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
    19
#ifndef _WIN32_WCE
504
3420d82f9b01 Some cleanups for PocketPC port.
Ryan C. Gordon <icculus@icculus.org>
parents: 494
diff changeset
    20
#include <errno.h>
254
c66bbbe50f14 Implemeted getLastModTime method.
Ryan C. Gordon <icculus@icculus.org>
parents: 240
diff changeset
    21
#include <time.h>
566
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
    22
#endif
22
49f6101707b4 More tweaks; GRP completely implemented. Everything builds clean.
Ryan C. Gordon <icculus@icculus.org>
parents: 21
diff changeset
    23
#include "physfs.h"
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    24
#include "zlib.h"
17
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
    25
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
    26
#define __PHYSICSFS_INTERNAL__
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
    27
#include "physfs_internal.h"
7337737f5120 Moved from root source dir.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
    28
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    29
/*
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    30
 * A buffer of ZIP_READBUFSIZE is malloc() for each compressed file opened,
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    31
 *  and is free()'d when you close the file; compressed data is read into
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    32
 *  this buffer, and then is decompressed into the buffer passed to
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    33
 *  PHYSFS_read().
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    34
 *
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    35
 * Uncompressed entries in a zipfile do not allocate this buffer; they just
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    36
 *  read data directly into the buffer passed to PHYSFS_read().
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    37
 *
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    38
 * Depending on your speed and memory requirements, you should tweak this
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    39
 *  value.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    40
 */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    41
#define ZIP_READBUFSIZE   (16 * 1024)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    42
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    43
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    44
/*
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    45
 * Entries are "unresolved" until they are first opened. At that time,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    46
 *  local file headers parsed/validated, data offsets will be updated to look
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    47
 *  at the actual file data instead of the header, and symlinks will be
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    48
 *  followed and optimized. This means that we don't seek and read around the
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    49
 *  archive until forced to do so, and after the first time, we had to do
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    50
 *  less reading and parsing, which is very CD-ROM friendly.
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    51
 */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    52
typedef enum
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    53
{
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    54
    ZIP_UNRESOLVED_FILE,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    55
    ZIP_UNRESOLVED_SYMLINK,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    56
    ZIP_RESOLVING,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    57
    ZIP_RESOLVED,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    58
    ZIP_BROKEN_FILE,
538
8752e3c0dbf9 Now compiles on CodeWarrior 6 for MacOS Classic again.
Ryan C. Gordon <icculus@icculus.org>
parents: 504
diff changeset
    59
    ZIP_BROKEN_SYMLINK
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    60
} ZipResolveType;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    61
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    62
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    63
/*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    64
 * One ZIPentry is kept for each file in an open ZIP archive.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    65
 */
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    66
typedef struct _ZIPentry
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
    67
{
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    68
    char *name;                         /* Name of file in archive        */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    69
    struct _ZIPentry *symlink;          /* NULL or file we symlink to     */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    70
    ZipResolveType resolved;            /* Have we resolved file/symlink? */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    71
    PHYSFS_uint32 offset;               /* offset of data in archive      */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    72
    PHYSFS_uint16 version;              /* version made by                */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    73
    PHYSFS_uint16 version_needed;       /* version needed to extract      */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    74
    PHYSFS_uint16 compression_method;   /* compression method             */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    75
    PHYSFS_uint32 crc;                  /* crc-32                         */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    76
    PHYSFS_uint32 compressed_size;      /* compressed size                */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    77
    PHYSFS_uint32 uncompressed_size;    /* uncompressed size              */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
    78
    PHYSFS_sint64 last_mod_time;        /* last file mod time             */
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
    79
} ZIPentry;
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
    80
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    81
/*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    82
 * One ZIPinfo is kept for each open ZIP archive.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    83
 */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    84
typedef struct
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    85
{
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    86
    char *archiveName;        /* path to ZIP in platform-dependent notation. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    87
    PHYSFS_uint16 entryCount; /* Number of files in ZIP.                     */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    88
    ZIPentry *entries;        /* info on all files in ZIP.                   */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    89
} ZIPinfo;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    90
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    91
/*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    92
 * One ZIPfileinfo is kept for each open file in a ZIP archive.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    93
 */
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
    94
typedef struct
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
    95
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    96
    ZIPentry *entry;                      /* Info on file.              */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    97
    void *handle;                         /* physical file handle.      */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    98
    PHYSFS_uint32 compressed_position;    /* offset in compressed data. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
    99
    PHYSFS_uint32 uncompressed_position;  /* tell() position.           */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   100
    PHYSFS_uint8 *buffer;                 /* decompression buffer.      */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   101
    z_stream stream;                      /* zlib stream state.         */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   102
} ZIPfileinfo;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   103
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   104
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   105
/* Magic numbers... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   106
#define ZIP_LOCAL_FILE_SIG          0x04034b50
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   107
#define ZIP_CENTRAL_DIR_SIG         0x02014b50
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   108
#define ZIP_END_OF_CENTRAL_DIR_SIG  0x06054b50
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   109
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   110
/* compression methods... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   111
#define COMPMETH_NONE 0
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   112
/* ...and others... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   113
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   114
342
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   115
#define UNIX_FILETYPE_MASK    0170000
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   116
#define UNIX_FILETYPE_SYMLINK 0120000
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   117
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   118
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   119
static PHYSFS_sint64 ZIP_read(FileHandle *handle, void *buffer,
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   120
                              PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   121
static PHYSFS_sint64 ZIP_write(FileHandle *handle, const void *buffer,
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   122
                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   123
static int ZIP_eof(FileHandle *handle);
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   124
static PHYSFS_sint64 ZIP_tell(FileHandle *handle);
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   125
static int ZIP_seek(FileHandle *handle, PHYSFS_uint64 offset);
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   126
static PHYSFS_sint64 ZIP_fileLength(FileHandle *handle);
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   127
static int ZIP_fileClose(FileHandle *handle);
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   128
static int ZIP_isArchive(const char *filename, int forWriting);
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   129
static void *ZIP_openArchive(const char *name, int forWriting);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   130
static LinkedStringList *ZIP_enumerateFiles(void *opaque,
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   131
                                            const char *dirname,
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   132
                                            int omitSymLinks);
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   133
static int ZIP_exists(void *opaque, const char *name);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   134
static int ZIP_isDirectory(void *opaque, const char *name, int *fileExists);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   135
static int ZIP_isSymLink(void *opaque, const char *name, int *fileExists);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   136
static PHYSFS_sint64 ZIP_getLastModTime(void *opaque, const char *n, int *e);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   137
static FileHandle *ZIP_openRead(void *opaque, const char *filename, int *e);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   138
static FileHandle *ZIP_openWrite(void *opaque, const char *filename);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   139
static FileHandle *ZIP_openAppend(void *opaque, const char *filename);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   140
static void ZIP_dirClose(void *opaque);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   141
static int zip_resolve(void *in, ZIPinfo *info, ZIPentry *entry);
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   142
static int ZIP_remove(void *opaque, const char *name);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   143
static int ZIP_mkdir(void *opaque, const char *name);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   144
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   145
399
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   146
const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_ZIP =
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   147
{
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   148
    "ZIP",
427
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   149
    ZIP_ARCHIVE_DESCRIPTION,
399
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   150
    "Ryan C. Gordon <icculus@clutteredmind.org>",
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   151
    "http://icculus.org/physfs/",
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   152
};
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   153
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   154
static const FileFunctions __PHYSFS_FileFunctions_ZIP =
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   155
{
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   156
    ZIP_read,       /* read() method       */
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   157
    ZIP_write,      /* write() method      */
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   158
    ZIP_eof,        /* eof() method        */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   159
    ZIP_tell,       /* tell() method       */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   160
    ZIP_seek,       /* seek() method       */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   161
    ZIP_fileLength, /* fileLength() method */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   162
    ZIP_fileClose   /* fileClose() method  */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   163
};
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   164
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   165
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   166
const DirFunctions __PHYSFS_DirFunctions_ZIP =
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   167
{
399
02dd53688315 Changed DirFunctions struct a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 379
diff changeset
   168
    &__PHYSFS_ArchiveInfo_ZIP,
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   169
    ZIP_isArchive,          /* isArchive() method      */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   170
    ZIP_openArchive,        /* openArchive() method    */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   171
    ZIP_enumerateFiles,     /* enumerateFiles() method */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   172
    ZIP_exists,             /* exists() method         */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   173
    ZIP_isDirectory,        /* isDirectory() method    */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   174
    ZIP_isSymLink,          /* isSymLink() method      */
254
c66bbbe50f14 Implemeted getLastModTime method.
Ryan C. Gordon <icculus@icculus.org>
parents: 240
diff changeset
   175
    ZIP_getLastModTime,     /* getLastModTime() method */
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   176
    ZIP_openRead,           /* openRead() method       */
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   177
    ZIP_openWrite,          /* openWrite() method      */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   178
    ZIP_openAppend,         /* openAppend() method     */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   179
    ZIP_remove,             /* remove() method         */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   180
    ZIP_mkdir,              /* mkdir() method          */
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   181
    ZIP_dirClose            /* dirClose() method       */
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   182
};
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 71
diff changeset
   183
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   184
644
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   185
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   186
/*
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   187
 * Bridge physfs allocation functions to zlib's format...
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   188
 */
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   189
static voidpf zlibPhysfsAlloc(voidpf opaque, uInt items, uInt size)
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   190
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   191
    return(((PHYSFS_allocator *) opaque)->malloc(items * size));
644
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   192
} /* zlibPhysfsAlloc */
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   193
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   194
/*
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   195
 * Bridge physfs allocation functions to zlib's format...
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   196
 */
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   197
static void zlibPhysfsFree(voidpf opaque, voidpf address)
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   198
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   199
    ((PHYSFS_allocator *) opaque)->free(address);
644
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   200
} /* zlibPhysfsFree */
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   201
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   202
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   203
/*
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   204
 * Construct a new z_stream to a sane state.
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   205
 */
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   206
static void initializeZStream(z_stream *pstr)
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   207
{
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   208
    memset(pstr, '\0', sizeof (z_stream));
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   209
    pstr->zalloc = zlibPhysfsAlloc;
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   210
    pstr->zfree = zlibPhysfsFree;
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
   211
    pstr->opaque = __PHYSFS_getAllocator();
644
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   212
} /* initializeZStream */
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   213
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   214
427
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   215
static const char *zlib_error_string(int rc)
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   216
{
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   217
    switch (rc)
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   218
    {
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   219
        case Z_OK: return(NULL);  /* not an error. */
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   220
        case Z_STREAM_END: return(NULL); /* not an error. */
566
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
   221
#ifndef _WIN32_WCE
427
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   222
        case Z_ERRNO: return(strerror(errno));
566
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
   223
#endif
427
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   224
        case Z_NEED_DICT: return(ERR_ZLIB_NEED_DICT);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   225
        case Z_DATA_ERROR: return(ERR_ZLIB_DATA_ERROR);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   226
        case Z_MEM_ERROR: return(ERR_ZLIB_MEMORY_ERROR);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   227
        case Z_BUF_ERROR: return(ERR_ZLIB_BUFFER_ERROR);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   228
        case Z_VERSION_ERROR: return(ERR_ZLIB_VERSION_ERROR);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   229
        default: return(ERR_ZLIB_UNKNOWN_ERROR);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   230
    } /* switch */
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   231
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   232
    return(NULL);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   233
} /* zlib_error_string */
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   234
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   235
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   236
/*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   237
 * Wrap all zlib calls in this, so the physfs error state is set appropriately.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   238
 */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   239
static int zlib_err(int rc)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   240
{
427
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   241
    const char *str = zlib_error_string(rc);
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   242
    if (str != NULL)
c38ace41039f Natural language #defines and build system support.
Ryan C. Gordon <icculus@icculus.org>
parents: 413
diff changeset
   243
        __PHYSFS_setError(str);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   244
    return(rc);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   245
} /* zlib_err */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   246
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   247
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   248
/*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   249
 * Read an unsigned 32-bit int and swap to native byte order.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   250
 */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   251
static int readui32(void *in, PHYSFS_uint32 *val)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   252
{
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   253
    PHYSFS_uint32 v;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   254
    BAIL_IF_MACRO(__PHYSFS_platformRead(in, &v, sizeof (v), 1) != 1, NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   255
    *val = PHYSFS_swapULE32(v);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   256
    return(1);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   257
} /* readui32 */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   258
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   259
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   260
/*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   261
 * Read an unsigned 16-bit int and swap to native byte order.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   262
 */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   263
static int readui16(void *in, PHYSFS_uint16 *val)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   264
{
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   265
    PHYSFS_uint16 v;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   266
    BAIL_IF_MACRO(__PHYSFS_platformRead(in, &v, sizeof (v), 1) != 1, NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   267
    *val = PHYSFS_swapULE16(v);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   268
    return(1);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   269
} /* readui16 */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   270
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   271
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   272
static PHYSFS_sint64 ZIP_read(FileHandle *handle, void *buf,
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   273
                              PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   274
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   275
    ZIPfileinfo *finfo = (ZIPfileinfo *) (handle->opaque);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   276
    ZIPentry *entry = finfo->entry;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   277
    PHYSFS_sint64 retval = 0;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   278
    PHYSFS_sint64 maxread = ((PHYSFS_sint64) objSize) * objCount;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   279
    PHYSFS_sint64 avail = entry->uncompressed_size -
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   280
                          finfo->uncompressed_position;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   281
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   282
    BAIL_IF_MACRO(maxread == 0, NULL, 0);    /* quick rejection. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   283
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   284
    if (avail < maxread)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   285
    {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   286
        maxread = avail - (avail % objSize);
540
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   287
        objCount = (PHYSFS_uint32) (maxread / objSize);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   288
        BAIL_IF_MACRO(objCount == 0, ERR_PAST_EOF, 0);  /* quick rejection. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   289
        __PHYSFS_setError(ERR_PAST_EOF);   /* this is always true here. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   290
    } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   291
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   292
    if (entry->compression_method == COMPMETH_NONE)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   293
    {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   294
        retval = __PHYSFS_platformRead(finfo->handle, buf, objSize, objCount);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   295
    } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   296
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   297
    else
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   298
    {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   299
        finfo->stream.next_out = buf;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   300
        finfo->stream.avail_out = objSize * objCount;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   301
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   302
        while (retval < maxread)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   303
        {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   304
            PHYSFS_uint32 before = finfo->stream.total_out;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   305
            int rc;
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   306
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   307
            if (finfo->stream.avail_in == 0)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   308
            {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   309
                PHYSFS_sint64 br;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   310
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   311
                br = entry->compressed_size - finfo->compressed_position;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   312
                if (br > 0)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   313
                {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   314
                    if (br > ZIP_READBUFSIZE)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   315
                        br = ZIP_READBUFSIZE;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   316
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   317
                    br = __PHYSFS_platformRead(finfo->handle,
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   318
                                               finfo->buffer,
540
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   319
                                               1, (PHYSFS_uint32) br);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   320
                    if (br <= 0)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   321
                        break;
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   322
540
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   323
                    finfo->compressed_position += (PHYSFS_uint32) br;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   324
                    finfo->stream.next_in = finfo->buffer;
540
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   325
                    finfo->stream.avail_in = (PHYSFS_uint32) br;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   326
                } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   327
            } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   328
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   329
            rc = zlib_err(inflate(&finfo->stream, Z_SYNC_FLUSH));
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   330
            retval += (finfo->stream.total_out - before);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   331
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   332
            if (rc != Z_OK)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   333
                break;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   334
        } /* while */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   335
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   336
        retval /= objSize;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   337
    } /* else */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   338
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   339
    if (retval > 0)
540
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   340
        finfo->uncompressed_position += (PHYSFS_uint32) (retval * objSize);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   341
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   342
    return(retval);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   343
} /* ZIP_read */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   344
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   345
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   346
static PHYSFS_sint64 ZIP_write(FileHandle *handle, const void *buf,
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   347
                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   348
{
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   349
    BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   350
} /* ZIP_write */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   351
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   352
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   353
static int ZIP_eof(FileHandle *handle)
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   354
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   355
    ZIPfileinfo *finfo = ((ZIPfileinfo *) (handle->opaque));
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   356
    return(finfo->uncompressed_position >= finfo->entry->uncompressed_size);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   357
} /* ZIP_eof */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   358
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   359
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   360
static PHYSFS_sint64 ZIP_tell(FileHandle *handle)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   361
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   362
    return(((ZIPfileinfo *) (handle->opaque))->uncompressed_position);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   363
} /* ZIP_tell */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   364
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   365
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   366
static int ZIP_seek(FileHandle *handle, PHYSFS_uint64 offset)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   367
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   368
    ZIPfileinfo *finfo = (ZIPfileinfo *) (handle->opaque);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   369
    ZIPentry *entry = finfo->entry;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   370
    void *in = finfo->handle;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   371
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   372
    BAIL_IF_MACRO(offset > entry->uncompressed_size, ERR_PAST_EOF, 0);
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   373
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   374
    if (entry->compression_method == COMPMETH_NONE)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   375
    {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   376
        PHYSFS_sint64 newpos = offset + entry->offset;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   377
        BAIL_IF_MACRO(!__PHYSFS_platformSeek(in, newpos), NULL, 0);
551
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   378
        finfo->uncompressed_position = (PHYSFS_uint32) offset;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   379
    } /* if */
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   380
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   381
    else
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   382
    {
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   383
        /*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   384
         * If seeking backwards, we need to redecode the file
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   385
         *  from the start and throw away the compressed bits until we hit
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   386
         *  the offset we need. If seeking forward, we still need to
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   387
         *  decode, but we don't rewind first.
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   388
         */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   389
        if (offset < finfo->uncompressed_position)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   390
        {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   391
            /* we do a copy so state is sane if inflateInit2() fails. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   392
            z_stream str;
644
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   393
            initializeZStream(&str);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   394
            if (zlib_err(inflateInit2(&str, -MAX_WBITS)) != Z_OK)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   395
                return(0);
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   396
345
cbcb27547864 Seeking backwards in ZIP_seek() works now.
Ryan C. Gordon <icculus@icculus.org>
parents: 342
diff changeset
   397
            if (!__PHYSFS_platformSeek(in, entry->offset))
cbcb27547864 Seeking backwards in ZIP_seek() works now.
Ryan C. Gordon <icculus@icculus.org>
parents: 342
diff changeset
   398
                return(0);
cbcb27547864 Seeking backwards in ZIP_seek() works now.
Ryan C. Gordon <icculus@icculus.org>
parents: 342
diff changeset
   399
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   400
            inflateEnd(&finfo->stream);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   401
            memcpy(&finfo->stream, &str, sizeof (z_stream));
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   402
            finfo->uncompressed_position = finfo->compressed_position = 0;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   403
        } /* if */
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   404
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   405
        while (finfo->uncompressed_position != offset)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   406
        {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   407
            PHYSFS_uint8 buf[512];
540
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   408
            PHYSFS_uint32 maxread;
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   409
a6b6f0a54cd2 Attempt at type correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 538
diff changeset
   410
            maxread = (PHYSFS_uint32) (offset - finfo->uncompressed_position);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   411
            if (maxread > sizeof (buf))
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   412
                maxread = sizeof (buf);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   413
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   414
            if (ZIP_read(handle, buf, maxread, 1) != 1)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   415
                return(0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   416
        } /* while */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   417
    } /* else */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   418
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   419
    return(1);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   420
} /* ZIP_seek */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   421
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   422
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 95
diff changeset
   423
static PHYSFS_sint64 ZIP_fileLength(FileHandle *handle)
28
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   424
{
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   425
    ZIPfileinfo *finfo = (ZIPfileinfo *) (handle->opaque);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   426
    return(finfo->entry->uncompressed_size);
28
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   427
} /* ZIP_fileLength */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   428
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 22
diff changeset
   429
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   430
static int ZIP_fileClose(FileHandle *handle)
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   431
{
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   432
    ZIPfileinfo *finfo = (ZIPfileinfo *) (handle->opaque);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   433
    BAIL_IF_MACRO(!__PHYSFS_platformClose(finfo->handle), NULL, 0);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   434
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   435
    if (finfo->entry->compression_method != COMPMETH_NONE)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   436
        inflateEnd(&finfo->stream);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   437
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   438
    if (finfo->buffer != NULL)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   439
        free(finfo->buffer);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   440
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   441
    free(finfo);
429
72ca216c756a Patched memory leaks (thanks, Valgrind!)
Ryan C. Gordon <icculus@icculus.org>
parents: 427
diff changeset
   442
    free(handle);
50
989b413188e5 Added individual file i/o code. Untested.
Ryan C. Gordon <icculus@icculus.org>
parents: 46
diff changeset
   443
    return(1);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   444
} /* ZIP_fileClose */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   445
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   446
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   447
static PHYSFS_sint64 zip_find_end_of_central_dir(void *in, PHYSFS_sint64 *len)
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   448
{
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   449
    PHYSFS_uint8 buf[256];
413
d669d303317d Initialized some variables to stop compiler whining.
Ryan C. Gordon <icculus@icculus.org>
parents: 402
diff changeset
   450
    PHYSFS_sint32 i = 0;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   451
    PHYSFS_sint64 filelen;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   452
    PHYSFS_sint64 filepos;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   453
    PHYSFS_sint32 maxread;
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   454
    PHYSFS_sint32 totalread = 0;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   455
    int found = 0;
413
d669d303317d Initialized some variables to stop compiler whining.
Ryan C. Gordon <icculus@icculus.org>
parents: 402
diff changeset
   456
    PHYSFS_uint32 extra = 0;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   457
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   458
    filelen = __PHYSFS_platformFileLength(in);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   459
    BAIL_IF_MACRO(filelen == -1, NULL, 0);
541
2be2fff14b7a Another attempt at type size correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 540
diff changeset
   460
    BAIL_IF_MACRO(filelen > 0xFFFFFFFF, "ZIP bigger than 2 gigs?!", 0);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   461
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   462
    /*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   463
     * Jump to the end of the file and start reading backwards.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   464
     *  The last thing in the file is the zipfile comment, which is variable
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   465
     *  length, and the field that specifies its size is before it in the
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   466
     *  file (argh!)...this means that we need to scan backwards until we
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   467
     *  hit the end-of-central-dir signature. We can then sanity check that
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   468
     *  the comment was as big as it should be to make sure we're in the
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   469
     *  right place. The comment length field is 16 bits, so we can stop
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   470
     *  searching for that signature after a little more than 64k at most,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   471
     *  and call it a corrupted zipfile.
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   472
     */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   473
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   474
    if (sizeof (buf) < filelen)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   475
    {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   476
        filepos = filelen - sizeof (buf);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   477
        maxread = sizeof (buf);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   478
    } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   479
    else
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   480
    {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   481
        filepos = 0;
541
2be2fff14b7a Another attempt at type size correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 540
diff changeset
   482
        maxread = (PHYSFS_uint32) filelen;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   483
    } /* else */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   484
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   485
    while ((totalread < filelen) && (totalread < 65557))
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   486
    {
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   487
        BAIL_IF_MACRO(!__PHYSFS_platformSeek(in, filepos), NULL, -1);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   488
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   489
        /* make sure we catch a signature between buffers. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   490
        if (totalread != 0)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   491
        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   492
            if (__PHYSFS_platformRead(in, buf, maxread - 4, 1) != 1)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   493
                return(-1);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   494
            *((PHYSFS_uint32 *) (&buf[maxread - 4])) = extra;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   495
            totalread += maxread - 4;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   496
        } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   497
        else
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   498
        {
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   499
            if (__PHYSFS_platformRead(in, buf, maxread, 1) != 1)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   500
                return(-1);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   501
            totalread += maxread;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   502
        } /* else */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   503
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   504
        extra = *((PHYSFS_uint32 *) (&buf[0]));
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   505
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   506
        for (i = maxread - 4; i > 0; i--)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   507
        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   508
            if ((buf[i + 0] == 0x50) &&
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   509
                (buf[i + 1] == 0x4B) &&
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   510
                (buf[i + 2] == 0x05) &&
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   511
                (buf[i + 3] == 0x06) )
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   512
            {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   513
                found = 1;  /* that's the signature! */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   514
                break;  
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   515
            } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   516
        } /* for */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   517
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   518
        if (found)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   519
            break;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   520
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   521
        filepos -= (maxread - 4);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   522
    } /* while */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   523
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   524
    BAIL_IF_MACRO(!found, ERR_NOT_AN_ARCHIVE, -1);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   525
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   526
    if (len != NULL)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   527
        *len = filelen;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   528
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   529
    return(filepos + i);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   530
} /* zip_find_end_of_central_dir */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   531
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   532
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   533
static int ZIP_isArchive(const char *filename, int forWriting)
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   534
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   535
    PHYSFS_uint32 sig;
446
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   536
    int retval = 0;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   537
    void *in;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   538
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   539
    in = __PHYSFS_platformOpenRead(filename);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   540
    BAIL_IF_MACRO(in == NULL, NULL, 0);
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   541
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   542
    /*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   543
     * The first thing in a zip file might be the signature of the
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   544
     *  first local file record, so it makes for a quick determination.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   545
     */
446
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   546
    if (readui32(in, &sig))
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   547
    {
446
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   548
        retval = (sig == ZIP_LOCAL_FILE_SIG);
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   549
        if (!retval)
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   550
        {
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   551
            /*
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   552
             * No sig...might be a ZIP with data at the start
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   553
             *  (a self-extracting executable, etc), so we'll have to do
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   554
             *  it the hard way...
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   555
             */
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   556
            retval = (zip_find_end_of_central_dir(in, NULL) != -1);
e1f7fe003b70 Fix for correct cleanup on read error.
Ryan C. Gordon <icculus@icculus.org>
parents: 429
diff changeset
   557
        } /* if */
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   558
    } /* if */
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   559
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   560
    __PHYSFS_platformClose(in);
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   561
    return(retval);
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   562
} /* ZIP_isArchive */
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   563
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   564
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   565
static void zip_free_entries(ZIPentry *entries, PHYSFS_uint32 max)
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   566
{
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   567
    PHYSFS_uint32 i;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   568
    for (i = 0; i < max; i++)
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   569
    {
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   570
        ZIPentry *entry = &entries[i];
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   571
        if (entry->name != NULL)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   572
            free(entry->name);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   573
    } /* for */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   574
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   575
    free(entries);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   576
} /* zip_free_entries */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   577
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   578
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   579
/*
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   580
 * This will find the ZIPentry associated with a path in platform-independent
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   581
 *  notation. Directories don't have ZIPentries associated with them, but 
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   582
 *  (*isDir) will be set to non-zero if a dir was hit.
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   583
 */
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   584
static ZIPentry *zip_find_entry(ZIPinfo *info, const char *path, int *isDir)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   585
{
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   586
    ZIPentry *a = info->entries;
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   587
    PHYSFS_sint32 pathlen = strlen(path);
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   588
    PHYSFS_sint32 lo = 0;
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   589
    PHYSFS_sint32 hi = (PHYSFS_sint32) (info->entryCount - 1);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   590
    PHYSFS_sint32 middle;
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   591
    const char *thispath = NULL;
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   592
    int rc;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   593
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   594
    while (lo <= hi)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   595
    {
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   596
        middle = lo + ((hi - lo) / 2);
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   597
        thispath = a[middle].name;
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   598
        rc = strncmp(path, thispath, pathlen);
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   599
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   600
        if (rc > 0)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   601
            lo = middle + 1;
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   602
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   603
        else if (rc < 0)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   604
            hi = middle - 1;
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   605
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   606
        else /* substring match...might be dir or entry or nothing. */
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   607
        {
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   608
            if (isDir != NULL)
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   609
            {
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   610
                *isDir = (thispath[pathlen] == '/');
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   611
                if (*isDir)
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   612
                    return(NULL);
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   613
            } /* if */
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   614
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   615
            if (thispath[pathlen] == '\0') /* found entry? */
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   616
                return(&a[middle]);
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   617
            else
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   618
                hi = middle - 1;  /* adjust search params, try again. */
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   619
        } /* if */
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
   620
    } /* while */
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   621
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   622
    if (isDir != NULL)
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   623
        *isDir = 0;
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   624
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   625
    BAIL_MACRO(ERR_NO_SUCH_FILE, NULL);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   626
} /* zip_find_entry */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   627
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   628
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   629
/* Convert paths from old, buggy DOS zippers... */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   630
static void zip_convert_dos_path(ZIPentry *entry, char *path)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   631
{
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   632
    PHYSFS_uint8 hosttype = (PHYSFS_uint8) ((entry->version >> 8) & 0xFF);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   633
    if (hosttype == 0)  /* FS_FAT_ */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   634
    {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   635
        while (*path)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   636
        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   637
            if (*path == '\\')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   638
                *path = '/';
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   639
            path++;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   640
        } /* while */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   641
    } /* if */
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   642
} /* zip_convert_dos_path */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   643
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   644
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   645
static void zip_expand_symlink_path(char *path)
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   646
{
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   647
    char *ptr = path;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   648
    char *prevptr = path;
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   649
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   650
    while (1)
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   651
    {
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   652
        ptr = strchr(ptr, '/');
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   653
        if (ptr == NULL)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   654
            break;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   655
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   656
        if (*(ptr + 1) == '.')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   657
        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   658
            if (*(ptr + 2) == '/')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   659
            {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   660
                /* current dir in middle of string: ditch it. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   661
                memmove(ptr, ptr + 2, strlen(ptr + 2) + 1);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   662
            } /* else if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   663
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   664
            else if (*(ptr + 2) == '\0')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   665
            {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   666
                /* current dir at end of string: ditch it. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   667
                *ptr = '\0';
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   668
            } /* else if */
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   669
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   670
            else if (*(ptr + 2) == '.')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   671
            {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   672
                if (*(ptr + 3) == '/')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   673
                {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   674
                    /* parent dir in middle: move back one, if possible. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   675
                    memmove(prevptr, ptr + 4, strlen(ptr + 4) + 1);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   676
                    ptr = prevptr;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   677
                    while (prevptr != path)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   678
                    {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   679
                        prevptr--;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   680
                        if (*prevptr == '/')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   681
                        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   682
                            prevptr++;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   683
                            break;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   684
                        } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   685
                    } /* while */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   686
                } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   687
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   688
                if (*(ptr + 3) == '\0')
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   689
                {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   690
                    /* parent dir at end: move back one, if possible. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   691
                    *prevptr = '\0';
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   692
                } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   693
            } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   694
        } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   695
        else
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   696
        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   697
            prevptr = ptr;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   698
        } /* else */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   699
    } /* while */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   700
} /* zip_expand_symlink_path */
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   701
32
09a8197fad3b Initial work on ZIPfile support. Not complete. Not very pleased with this
Ryan C. Gordon <icculus@icculus.org>
parents: 29
diff changeset
   702
143
337505f94c10 Platform abstracted i/o, other bugfixes.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   703
/*
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   704
 * Look for the entry named by (path). If it exists, resolve it, and return
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   705
 *  a pointer to that entry. If it's another symlink, keep resolving until you
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   706
 *  hit a real file and then return a pointer to the final non-symlink entry.
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   707
 *  If there's a problem, return NULL. (path) is always free()'d by this
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   708
 *  function.
143
337505f94c10 Platform abstracted i/o, other bugfixes.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   709
 */
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   710
static ZIPentry *zip_follow_symlink(void *in, ZIPinfo *info, char *path)
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   711
{
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   712
    ZIPentry *entry;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   713
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   714
    zip_expand_symlink_path(path);
483
d788c84d8694 Fixed bug that prevented use when symlinks were disallowed.
Ryan C. Gordon <icculus@icculus.org>
parents: 478
diff changeset
   715
    entry = zip_find_entry(info, path, NULL);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   716
    if (entry != NULL)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   717
    {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   718
        if (!zip_resolve(in, info, entry))  /* recursive! */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   719
            entry = NULL;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   720
        else
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   721
        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   722
            if (entry->symlink != NULL)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   723
                entry = entry->symlink;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   724
        } /* else */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   725
    } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   726
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   727
    free(path);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   728
    return(entry);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   729
} /* zip_follow_symlink */
20
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   730
efdde0d21521 Implementation compiles and links with no actual archive support. No test
Ryan C. Gordon <icculus@icculus.org>
parents: 17
diff changeset
   731
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   732
static int zip_resolve_symlink(void *in, ZIPinfo *info, ZIPentry *entry)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   733
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   734
    char *path;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   735
    PHYSFS_uint32 size = entry->uncompressed_size;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   736
    int rc = 0;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   737
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   738
    /*
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   739
     * We've already parsed the local file header of the symlink at this
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   740
     *  point. Now we need to read the actual link from the file data and
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   741
     *  follow it.
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   742
     */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   743
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   744
    BAIL_IF_MACRO(!__PHYSFS_platformSeek(in, entry->offset), NULL, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   745
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   746
    path = (char *) malloc(size + 1);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   747
    BAIL_IF_MACRO(path == NULL, ERR_OUT_OF_MEMORY, 0);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   748
    
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   749
    if (entry->compression_method == COMPMETH_NONE)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   750
        rc = (__PHYSFS_platformRead(in, path, size, 1) == 1);
143
337505f94c10 Platform abstracted i/o, other bugfixes.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   751
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   752
    else  /* symlink target path is compressed... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   753
    {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   754
        z_stream stream;
340
24a11f8566f8 Symlink fixes. Still broken, though.
Ryan C. Gordon <icculus@icculus.org>
parents: 337
diff changeset
   755
        PHYSFS_uint32 compsize = entry->compressed_size;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   756
        PHYSFS_uint8 *compressed = (PHYSFS_uint8 *) malloc(compsize);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   757
        if (compressed != NULL)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   758
        {
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   759
            if (__PHYSFS_platformRead(in, compressed, compsize, 1) == 1)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   760
            {
644
1cb5533d369c Initial structure for replacable allocator work.
Ryan C. Gordon <icculus@icculus.org>
parents: 579
diff changeset
   761
                initializeZStream(&stream);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   762
                stream.next_in = compressed;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   763
                stream.avail_in = compsize;
538
8752e3c0dbf9 Now compiles on CodeWarrior 6 for MacOS Classic again.
Ryan C. Gordon <icculus@icculus.org>
parents: 504
diff changeset
   764
                stream.next_out = (unsigned char *) path;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   765
                stream.avail_out = size;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   766
                if (zlib_err(inflateInit2(&stream, -MAX_WBITS)) == Z_OK)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   767
                {
340
24a11f8566f8 Symlink fixes. Still broken, though.
Ryan C. Gordon <icculus@icculus.org>
parents: 337
diff changeset
   768
                    rc = zlib_err(inflate(&stream, Z_FINISH));
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   769
                    inflateEnd(&stream);
340
24a11f8566f8 Symlink fixes. Still broken, though.
Ryan C. Gordon <icculus@icculus.org>
parents: 337
diff changeset
   770
24a11f8566f8 Symlink fixes. Still broken, though.
Ryan C. Gordon <icculus@icculus.org>
parents: 337
diff changeset
   771
                    /* both are acceptable outcomes... */
24a11f8566f8 Symlink fixes. Still broken, though.
Ryan C. Gordon <icculus@icculus.org>
parents: 337
diff changeset
   772
                    rc = ((rc == Z_OK) || (rc == Z_STREAM_END));
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   773
                } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   774
            } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   775
            free(compressed);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   776
        } /* if */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   777
    } /* else */
143
337505f94c10 Platform abstracted i/o, other bugfixes.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   778
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   779
    if (!rc)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   780
        free(path);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   781
    else
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   782
    {
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   783
        path[entry->uncompressed_size] = '\0';    /* null-terminate it. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   784
        zip_convert_dos_path(entry, path);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   785
        entry->symlink = zip_follow_symlink(in, info, path);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   786
    } /* else */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   787
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   788
    return(entry->symlink != NULL);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   789
} /* zip_resolve_symlink */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   790
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   791
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   792
/*
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   793
 * Parse the local file header of an entry, and update entry->offset.
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   794
 */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   795
static int zip_parse_local(void *in, ZIPentry *entry)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   796
{
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   797
    PHYSFS_uint32 ui32;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   798
    PHYSFS_uint16 ui16;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   799
    PHYSFS_uint16 fnamelen;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   800
    PHYSFS_uint16 extralen;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   801
551
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   802
    /*
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   803
     * crc and (un)compressed_size are always zero if this is a "JAR"
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   804
     *  archive created with Sun's Java tools, apparently. We only
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   805
     *  consider this archive corrupted if those entries don't match and
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   806
     *  aren't zero. That seems to work well.
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   807
     */
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   808
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   809
    BAIL_IF_MACRO(!__PHYSFS_platformSeek(in, entry->offset), NULL, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   810
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   811
    BAIL_IF_MACRO(ui32 != ZIP_LOCAL_FILE_SIG, ERR_CORRUPTED, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   812
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   813
    BAIL_IF_MACRO(ui16 != entry->version_needed, ERR_CORRUPTED, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   814
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);  /* general bits. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   815
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   816
    BAIL_IF_MACRO(ui16 != entry->compression_method, ERR_CORRUPTED, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   817
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);  /* date/time */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   818
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
551
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   819
    BAIL_IF_MACRO(ui32 && (ui32 != entry->crc), ERR_CORRUPTED, 0);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   820
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
551
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   821
    BAIL_IF_MACRO(ui32 && (ui32 != entry->compressed_size), ERR_CORRUPTED, 0);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   822
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
551
f0fc464fd51b Fixed seeking in uncompressed zip entries and handle Java-created JAR files.
Ryan C. Gordon <icculus@icculus.org>
parents: 541
diff changeset
   823
    BAIL_IF_MACRO(ui32 && (ui32 != entry->uncompressed_size),ERR_CORRUPTED,0);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   824
    BAIL_IF_MACRO(!readui16(in, &fnamelen), NULL, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   825
    BAIL_IF_MACRO(!readui16(in, &extralen), NULL, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   826
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   827
    entry->offset += fnamelen + extralen + 30;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   828
    return(1);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   829
} /* zip_parse_local */
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   830
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   831
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   832
static int zip_resolve(void *in, ZIPinfo *info, ZIPentry *entry)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   833
{
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   834
    int retval = 1;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   835
    ZipResolveType resolve_type = entry->resolved;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   836
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   837
    /* Don't bother if we've failed to resolve this entry before. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   838
    BAIL_IF_MACRO(resolve_type == ZIP_BROKEN_FILE, ERR_CORRUPTED, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   839
    BAIL_IF_MACRO(resolve_type == ZIP_BROKEN_SYMLINK, ERR_CORRUPTED, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   840
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   841
    /* uhoh...infinite symlink loop! */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   842
    BAIL_IF_MACRO(resolve_type == ZIP_RESOLVING, ERR_SYMLINK_LOOP, 0);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   843
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   844
    /*
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   845
     * We fix up the offset to point to the actual data on the
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   846
     *  first open, since we don't want to seek across the whole file on
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   847
     *  archive open (can be SLOW on large, CD-stored files), but we
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   848
     *  need to check the local file header...not just for corruption,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   849
     *  but since it stores offset info the central directory does not.
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   850
     */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   851
    if (resolve_type != ZIP_RESOLVED)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   852
    {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   853
        entry->resolved = ZIP_RESOLVING;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   854
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   855
        retval = zip_parse_local(in, entry);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   856
        if (retval)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   857
        {
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   858
            /*
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   859
             * If it's a symlink, find the original file. This will cause
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   860
             *  resolution of other entries (other symlinks and, eventually,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   861
             *  the real file) if all goes well.
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   862
             */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   863
            if (resolve_type == ZIP_UNRESOLVED_SYMLINK)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   864
                retval = zip_resolve_symlink(in, info, entry);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   865
        } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   866
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   867
        if (resolve_type == ZIP_UNRESOLVED_SYMLINK)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   868
            entry->resolved = ((retval) ? ZIP_RESOLVED : ZIP_BROKEN_SYMLINK);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   869
        else if (resolve_type == ZIP_UNRESOLVED_FILE)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   870
            entry->resolved = ((retval) ? ZIP_RESOLVED : ZIP_BROKEN_FILE);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   871
    } /* if */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   872
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   873
    return(retval);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   874
} /* zip_resolve */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   875
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   876
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   877
static int zip_version_does_symlinks(PHYSFS_uint32 version)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   878
{
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   879
    int retval = 0;
163
fc2b8ee5b420 Approved zeph's comments, fixed a few of my screwups.
Ryan C. Gordon <icculus@icculus.org>
parents: 161
diff changeset
   880
    PHYSFS_uint8 hosttype = (PHYSFS_uint8) ((version >> 8) & 0xFF);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   881
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   882
    switch (hosttype)
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   883
    {
342
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   884
            /*
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   885
             * These are the platforms that can NOT build an archive with
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   886
             *  symlinks, according to the Info-ZIP project.
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   887
             */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   888
        case 0:  /* FS_FAT_  */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   889
        case 1:  /* AMIGA_   */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   890
        case 2:  /* VMS_     */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   891
        case 4:  /* VM_CSM_  */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   892
        case 6:  /* FS_HPFS_ */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   893
        case 11: /* FS_NTFS_ */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   894
        case 14: /* FS_VFAT_ */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   895
        case 13: /* ACORN_   */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   896
        case 15: /* MVS_     */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   897
        case 18: /* THEOS_   */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   898
            break;  /* do nothing. */
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   899
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   900
        default:  /* assume the rest to be unix-like. */
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   901
            retval = 1;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   902
            break;
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   903
    } /* switch */
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   904
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   905
    return(retval);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   906
} /* zip_version_does_symlinks */
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   907
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   908
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   909
static int zip_entry_is_symlink(ZIPentry *entry)
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   910
{
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   911
    return((entry->resolved == ZIP_UNRESOLVED_SYMLINK) ||
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   912
           (entry->resolved == ZIP_BROKEN_SYMLINK) ||
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   913
           (entry->symlink));
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   914
} /* zip_entry_is_symlink */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   915
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   916
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   917
static int zip_has_symlink_attr(ZIPentry *entry, PHYSFS_uint32 extern_attr)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   918
{
342
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   919
    PHYSFS_uint16 xattr = ((extern_attr >> 16) & 0xFFFF);
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   920
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   921
    return (
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   922
              (zip_version_does_symlinks(entry->version)) &&
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   923
              (entry->uncompressed_size > 0) &&
342
cef50576cb0b Fixed symlink detection.
Ryan C. Gordon <icculus@icculus.org>
parents: 340
diff changeset
   924
              ((xattr & UNIX_FILETYPE_MASK) == UNIX_FILETYPE_SYMLINK)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   925
           );
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   926
} /* zip_has_symlink_attr */
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   927
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   928
538
8752e3c0dbf9 Now compiles on CodeWarrior 6 for MacOS Classic again.
Ryan C. Gordon <icculus@icculus.org>
parents: 504
diff changeset
   929
static PHYSFS_sint64 zip_dos_time_to_physfs_time(PHYSFS_uint32 dostime)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
   930
{
566
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
   931
#ifdef _WIN32_WCE
578
bff1af8455ca Tabs-to-spaces patch by James Turk.
Ryan C. Gordon <icculus@icculus.org>
parents: 566
diff changeset
   932
    /* We have no struct tm and no mktime right now.
bff1af8455ca Tabs-to-spaces patch by James Turk.
Ryan C. Gordon <icculus@icculus.org>
parents: 566
diff changeset
   933
       FIXME: This should probably be fixed at some point.
bff1af8455ca Tabs-to-spaces patch by James Turk.
Ryan C. Gordon <icculus@icculus.org>
parents: 566
diff changeset
   934
    */
566
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
   935
    return -1;
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
   936
#else
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   937
    PHYSFS_uint32 dosdate;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   938
    struct tm unixtime;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   939
    memset(&unixtime, '\0', sizeof (unixtime));
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   940
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   941
    dosdate = (PHYSFS_uint32) ((dostime >> 16) & 0xFFFF);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   942
    dostime &= 0xFFFF;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   943
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   944
    /* dissect date */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   945
    unixtime.tm_year = ((dosdate >> 9) & 0x7F) + 80;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   946
    unixtime.tm_mon  = ((dosdate >> 5) & 0x0F) - 1;
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   947
    unixtime.tm_mday = ((dosdate     ) & 0x1F);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   948
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   949
    /* dissect time */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   950
    unixtime.tm_hour = ((dostime >> 11) & 0x1F);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   951
    unixtime.tm_min  = ((dostime >>  5) & 0x3F);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   952
    unixtime.tm_sec  = ((dostime <<  1) & 0x3E);
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   953
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   954
    /* let mktime calculate daylight savings time. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   955
    unixtime.tm_isdst = -1;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   956
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   957
    return((PHYSFS_sint64) mktime(&unixtime));
566
1e640d4acab9 PocketPC fixes (thanks, David Hedbor!)
Ryan C. Gordon <icculus@icculus.org>
parents: 551
diff changeset
   958
#endif
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   959
} /* zip_dos_time_to_physfs_time */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   960
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   961
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   962
static int zip_load_entry(void *in, ZIPentry *entry, PHYSFS_uint32 ofs_fixup)
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   963
{
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   964
    PHYSFS_uint16 fnamelen, extralen, commentlen;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   965
    PHYSFS_uint32 external_attr;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   966
    PHYSFS_uint16 ui16;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   967
    PHYSFS_uint32 ui32;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   968
    PHYSFS_sint64 si64;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   969
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   970
    /* sanity check with central directory signature... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   971
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   972
    BAIL_IF_MACRO(ui32 != ZIP_CENTRAL_DIR_SIG, ERR_CORRUPTED, 0);
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
   973
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   974
    /* Get the pertinent parts of the record... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   975
    BAIL_IF_MACRO(!readui16(in, &entry->version), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   976
    BAIL_IF_MACRO(!readui16(in, &entry->version_needed), NULL, 0);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   977
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);  /* general bits */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   978
    BAIL_IF_MACRO(!readui16(in, &entry->compression_method), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   979
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   980
    entry->last_mod_time = zip_dos_time_to_physfs_time(ui32);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   981
    BAIL_IF_MACRO(!readui32(in, &entry->crc), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   982
    BAIL_IF_MACRO(!readui32(in, &entry->compressed_size), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   983
    BAIL_IF_MACRO(!readui32(in, &entry->uncompressed_size), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   984
    BAIL_IF_MACRO(!readui16(in, &fnamelen), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   985
    BAIL_IF_MACRO(!readui16(in, &extralen), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   986
    BAIL_IF_MACRO(!readui16(in, &commentlen), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   987
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);  /* disk number start */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   988
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);  /* internal file attribs */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   989
    BAIL_IF_MACRO(!readui32(in, &external_attr), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   990
    BAIL_IF_MACRO(!readui32(in, &entry->offset), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   991
    entry->offset += ofs_fixup;
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   992
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   993
    entry->symlink = NULL;  /* will be resolved later, if necessary. */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   994
    entry->resolved = (zip_has_symlink_attr(entry, external_attr)) ?
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
   995
                            ZIP_UNRESOLVED_SYMLINK : ZIP_UNRESOLVED_FILE;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   996
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   997
    entry->name = (char *) malloc(fnamelen + 1);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   998
    BAIL_IF_MACRO(entry->name == NULL, ERR_OUT_OF_MEMORY, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   999
    if (__PHYSFS_platformRead(in, entry->name, fnamelen, 1) != 1)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1000
        goto zip_load_entry_puked;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1001
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1002
    entry->name[fnamelen] = '\0';  /* null-terminate the filename. */
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1003
    zip_convert_dos_path(entry, entry->name);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1004
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1005
    si64 = __PHYSFS_platformTell(in);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1006
    if (si64 == -1)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1007
        goto zip_load_entry_puked;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1008
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1009
        /* seek to the start of the next entry in the central directory... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1010
    if (!__PHYSFS_platformSeek(in, si64 + extralen + commentlen))
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1011
        goto zip_load_entry_puked;
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1012
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1013
    return(1);  /* success. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1014
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1015
zip_load_entry_puked:
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1016
    free(entry->name);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1017
    return(0);  /* failure. */
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1018
} /* zip_load_entry */
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1019
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1020
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1021
static int zip_entry_cmp(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1022
{
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1023
    ZIPentry *a = (ZIPentry *) _a;
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1024
    return(strcmp(a[one].name, a[two].name));
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1025
} /* zip_entry_cmp */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1026
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1027
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1028
static void zip_entry_swap(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1029
{
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1030
    ZIPentry tmp;
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1031
    ZIPentry *first = &(((ZIPentry *) _a)[one]);
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1032
    ZIPentry *second = &(((ZIPentry *) _a)[two]);
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1033
    memcpy(&tmp, first, sizeof (ZIPentry));
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1034
    memcpy(first, second, sizeof (ZIPentry));
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1035
    memcpy(second, &tmp, sizeof (ZIPentry));
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1036
} /* zip_entry_swap */
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1037
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1038
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
  1039
static int zip_load_entries(void *in, ZIPinfo *info,
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1040
                            PHYSFS_uint32 data_ofs, PHYSFS_uint32 central_ofs)
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1041
{
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1042
    PHYSFS_uint32 max = info->entryCount;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1043
    PHYSFS_uint32 i;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1044
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1045
    BAIL_IF_MACRO(!__PHYSFS_platformSeek(in, central_ofs), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1046
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1047
    info->entries = (ZIPentry *) malloc(sizeof (ZIPentry) * max);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1048
    BAIL_IF_MACRO(info->entries == NULL, ERR_OUT_OF_MEMORY, 0);
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1049
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1050
    for (i = 0; i < max; i++)
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
  1051
    {
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1052
        if (!zip_load_entry(in, &info->entries[i], data_ofs))
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1053
        {
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1054
            zip_free_entries(info->entries, i);
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1055
            return(0);
46
66d9a112b0f7 Now with all directory functions implemented (and debugged?). No file
Ryan C. Gordon <icculus@icculus.org>
parents: 41
diff changeset
  1056
        } /* if */
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1057
    } /* for */
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1058
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 446
diff changeset
  1059
    __PHYSFS_sort(info->entries, max, zip_entry_cmp, zip_entry_swap);
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1060
    return(1);
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1061
} /* zip_load_entries */
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1062
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1063
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
  1064
static int zip_parse_end_of_central_dir(void *in, ZIPinfo *info,
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1065
                                        PHYSFS_uint32 *data_start,
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1066
                                        PHYSFS_uint32 *central_dir_ofs)
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1067
{
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1068
    PHYSFS_uint32 ui32;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1069
    PHYSFS_uint16 ui16;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1070
    PHYSFS_sint64 len;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1071
    PHYSFS_sint64 pos;
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1072
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1073
    /* find the end-of-central-dir record, and seek to it. */
365
3d087cde1252 My rewrite continues. I'm mostly satisfied with this code now, minus debugging.
Ryan C. Gordon <icculus@icculus.org>
parents: 345
diff changeset
  1074
    pos = zip_find_end_of_central_dir(in, &len);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1075
    BAIL_IF_MACRO(pos == -1, NULL, 0);
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1076
    BAIL_IF_MACRO(!__PHYSFS_platformSeek(in, pos), NULL, 0);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1077
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1078
    /* check signature again, just in case. */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1079
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1080
    BAIL_IF_MACRO(ui32 != ZIP_END_OF_CENTRAL_DIR_SIG, ERR_NOT_AN_ARCHIVE, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1081
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1082
    /* number of this disk */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1083
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1084
    BAIL_IF_MACRO(ui16 != 0, ERR_UNSUPPORTED_ARCHIVE, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1085
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1086
    /* number of the disk with the start of the central directory */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1087
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1088
    BAIL_IF_MACRO(ui16 != 0, ERR_UNSUPPORTED_ARCHIVE, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1089
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1090
    /* total number of entries in the central dir on this disk */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1091
    BAIL_IF_MACRO(!readui16(in, &ui16), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1092
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1093
    /* total number of entries in the central dir */
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
  1094
    BAIL_IF_MACRO(!readui16(in, &info->entryCount), NULL, 0);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 646
diff changeset
  1095
    BAIL_IF_MACRO(ui16 != info->entryCount, ERR_UNSUPPORTED_ARCHIVE, 0);
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1096
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1097
    /* size of the central directory */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1098
    BAIL_IF_MACRO(!readui32(in, &ui32), NULL, 0);
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1099
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1100
    /* offset of central directory */
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1101
    BAIL_IF_MACRO(!readui32(in, central_dir_ofs), NULL, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1102
    BAIL_IF_MACRO(pos < *central_dir_ofs + ui32, ERR_UNSUPPORTED_ARCHIVE, 0);
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1103
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1104
    /*
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1105
     * For self-extracting archives, etc, there's crapola in the file
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1106
     *  before the zipfile records; we calculate how much data there is
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1107
     *  prepended by determining how far the central directory offset is
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1108
     *  from where it is supposed to be (start of end-of-central-dir minus
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1109
     *  sizeof central dir)...the difference in bytes is how much arbitrary
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1110
     *  data is at the start of the physical file.
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1111
     */
541
2be2fff14b7a Another attempt at type size correctness.
Ryan C. Gordon <icculus@icculus.org>
parents: 540
diff changeset
  1112
    *data_start = (PHYSFS_uint32) (pos - (*central_dir_ofs + ui32));
337
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1113
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1114
    /* Now that we know the difference, fix up the central dir offset... */
28500f02eb87 ZIP archiver rewrite.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
  1115
    *central_dir_ofs += *data_start;
53
6c3c990f006e ZIP entries are now cached at openArchive time, which cleans up the race
Ryan C. Gordon <icculus@icculus.org>
parents: 52
diff changeset
  1116
491
b8853d8a09cb Fixed infinite loop bug, cleaned out tab chars.
Ryan C. Gordon <icculus@icculus.org>
parents: 483
diff changeset
  1117
    /* zipfile comment length */