archivers/grp.c
author Ryan C. Gordon <icculus@icculus.org>
Wed, 03 Oct 2018 22:45:05 -0400
branchstable-1.0
changeset 1648 93b4c3bc6b9d
parent 927 8867d6c60ebf
permissions -rw-r--r--
Fixed Win10's GetUserProfileDirectory() bug in stable-1.0 branch.
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/*
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 * GRP support routines for PhysicsFS.
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 *
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 * This driver handles BUILD engine archives ("groupfiles"). This format
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 *  (but not this driver) was put together by Ken Silverman.
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 *
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 * The format is simple enough. In Ken's words:
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 *
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 *    What's the .GRP file format?
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 *
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 *     The ".grp" file format is just a collection of a lot of files stored
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 *     into 1 big one. I tried to make the format as simple as possible: The
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 *     first 12 bytes contains my name, "KenSilverman". The next 4 bytes is
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 *     the number of files that were compacted into the group file. Then for
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 *     each file, there is a 16 byte structure, where the first 12 bytes are
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 *     the filename, and the last 4 bytes are the file's size. The rest of
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 *     the group file is just the raw data packed one after the other in the
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 *     same order as the list of files.
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 *
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 * (That info is from http://www.advsys.net/ken/build.htm ...)
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 *
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 * Please see the file LICENSE in the source's root directory.
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 *
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 *  This file written by Ryan C. Gordon.
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 */
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#if HAVE_CONFIG_H
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#  include <config.h>
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#endif
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#if (defined PHYSFS_SUPPORTS_GRP)
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "physfs.h"
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_internal.h"
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typedef struct
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{
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    char name[13];
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    PHYSFS_uint32 startPos;
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    PHYSFS_uint32 size;
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} GRPentry;
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typedef struct
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{
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    char *filename;
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    PHYSFS_sint64 last_mod_time;
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    PHYSFS_uint32 entryCount;
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    GRPentry *entries;
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} GRPinfo;
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typedef struct
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{
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    void *handle;
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    GRPentry *entry;
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    PHYSFS_uint32 curPos;
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} GRPfileinfo;
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static void GRP_dirClose(DirHandle *h);
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static PHYSFS_sint64 GRP_read(FileHandle *handle, void *buffer,
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                              PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
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static PHYSFS_sint64 GRP_write(FileHandle *handle, const void *buffer,
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                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
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static int GRP_eof(FileHandle *handle);
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static PHYSFS_sint64 GRP_tell(FileHandle *handle);
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static int GRP_seek(FileHandle *handle, PHYSFS_uint64 offset);
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static PHYSFS_sint64 GRP_fileLength(FileHandle *handle);
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static int GRP_fileClose(FileHandle *handle);
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static int GRP_isArchive(const char *filename, int forWriting);
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static DirHandle *GRP_openArchive(const char *name, int forWriting);
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static LinkedStringList *GRP_enumerateFiles(DirHandle *h,
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                                            const char *dirname,
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                                            int omitSymLinks);
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static int GRP_exists(DirHandle *h, const char *name);
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static int GRP_isDirectory(DirHandle *h, const char *name, int *fileExists);
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static int GRP_isSymLink(DirHandle *h, const char *name, int *fileExists);
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static PHYSFS_sint64 GRP_getLastModTime(DirHandle *h, const char *n, int *e);
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static FileHandle *GRP_openRead(DirHandle *h, const char *name, int *exist);
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static FileHandle *GRP_openWrite(DirHandle *h, const char *name);
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static FileHandle *GRP_openAppend(DirHandle *h, const char *name);
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static int GRP_remove(DirHandle *h, const char *name);
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static int GRP_mkdir(DirHandle *h, const char *name);
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const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_GRP =
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{
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    "GRP",
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    GRP_ARCHIVE_DESCRIPTION,
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    "Ryan C. Gordon <icculus@icculus.org>",
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    "http://icculus.org/physfs/",
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};
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static const FileFunctions __PHYSFS_FileFunctions_GRP =
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{
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    GRP_read,       /* read() method       */
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    GRP_write,      /* write() method      */
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    GRP_eof,        /* eof() method        */
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    GRP_tell,       /* tell() method       */
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    GRP_seek,       /* seek() method       */
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    GRP_fileLength, /* fileLength() method */
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    GRP_fileClose   /* fileClose() method  */
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};
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const DirFunctions __PHYSFS_DirFunctions_GRP =
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{
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    &__PHYSFS_ArchiveInfo_GRP,
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    GRP_isArchive,          /* isArchive() method      */
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    GRP_openArchive,        /* openArchive() method    */
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    GRP_enumerateFiles,     /* enumerateFiles() method */
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    GRP_exists,             /* exists() method         */
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    GRP_isDirectory,        /* isDirectory() method    */
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    GRP_isSymLink,          /* isSymLink() method      */
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    GRP_getLastModTime,     /* getLastModTime() method */
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    GRP_openRead,           /* openRead() method       */
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    GRP_openWrite,          /* openWrite() method      */
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    GRP_openAppend,         /* openAppend() method     */
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    GRP_remove,             /* remove() method         */
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    GRP_mkdir,              /* mkdir() method          */
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    GRP_dirClose            /* dirClose() method       */
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};
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static void GRP_dirClose(DirHandle *h)
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{
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   132
    GRPinfo *info = ((GRPinfo *) h->opaque);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   133
    free(info->filename);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   134
    free(info->entries);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   135
    free(info);
93
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 69
diff changeset
   136
    free(h);
74d1df359be3 Patched to compile with an ancient version of CodeWarrior.
Ryan C. Gordon <icculus@icculus.org>
parents: 69
diff changeset
   137
} /* GRP_dirClose */
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   138
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   139
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 107
diff changeset
   140
static PHYSFS_sint64 GRP_read(FileHandle *handle, void *buffer,
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 107
diff changeset
   141
                              PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   142
{
b050804123a3 Initial add. Implemented, buggy, but not crashing.
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parents:
diff changeset
   143
    GRPfileinfo *finfo = (GRPfileinfo *) (handle->opaque);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   144
    GRPentry *entry = finfo->entry;
480
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   145
    PHYSFS_uint32 bytesLeft = entry->size - finfo->curPos;
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   146
    PHYSFS_uint32 objsLeft = (bytesLeft / objSize);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   147
    PHYSFS_sint64 rc;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   148
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   149
    if (objsLeft < objCount)
480
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   150
        objCount = objsLeft;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   151
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   152
    rc = __PHYSFS_platformRead(finfo->handle, buffer, objSize, objCount);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   153
    if (rc > 0)
480
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   154
        finfo->curPos += (PHYSFS_uint32) (rc * objSize);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   155
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   156
    return(rc);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   157
} /* GRP_read */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   158
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   159
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   160
static PHYSFS_sint64 GRP_write(FileHandle *handle, const void *buffer,
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   161
                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   162
{
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   163
    BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   164
} /* GRP_write */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   165
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   166
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   167
static int GRP_eof(FileHandle *handle)
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   168
{
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   169
    GRPfileinfo *finfo = (GRPfileinfo *) (handle->opaque);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   170
    GRPentry *entry = finfo->entry;
480
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   171
    return(finfo->curPos >= entry->size);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   172
} /* GRP_eof */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   173
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   174
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 107
diff changeset
   175
static PHYSFS_sint64 GRP_tell(FileHandle *handle)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   176
{
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   177
    return(((GRPfileinfo *) (handle->opaque))->curPos);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   178
} /* GRP_tell */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   179
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   180
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 107
diff changeset
   181
static int GRP_seek(FileHandle *handle, PHYSFS_uint64 offset)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   182
{
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   183
    GRPfileinfo *finfo = (GRPfileinfo *) (handle->opaque);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   184
    GRPentry *entry = finfo->entry;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   185
    int rc;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   186
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   187
    BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
480
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   188
    BAIL_IF_MACRO(offset >= entry->size, ERR_PAST_EOF, 0);
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   189
    rc = __PHYSFS_platformSeek(finfo->handle, entry->startPos + offset);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   190
    if (rc)
480
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   191
        finfo->curPos = (PHYSFS_uint32) offset;
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   192
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   193
    return(rc);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   194
} /* GRP_seek */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   195
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   196
132
b53fa5093749 Added typedefs and platform-specific i/o.
Ryan C. Gordon <icculus@icculus.org>
parents: 107
diff changeset
   197
static PHYSFS_sint64 GRP_fileLength(FileHandle *handle)
28
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 26
diff changeset
   198
{
480
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   199
    GRPfileinfo *finfo = ((GRPfileinfo *) handle->opaque);
2cf0b6edd200 Cleaned up some stuff, reduced some unnecessary 64-bit ints to 32.
Ryan C. Gordon <icculus@icculus.org>
parents: 467
diff changeset
   200
    return((PHYSFS_sint64) finfo->entry->size);
28
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 26
diff changeset
   201
} /* GRP_fileLength */
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 26
diff changeset
   202
529214f57d1b Added PHYSFS_fileLength(). Bleh.
Ryan C. Gordon <icculus@icculus.org>
parents: 26
diff changeset
   203
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   204
static int GRP_fileClose(FileHandle *handle)
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   205
{
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   206
    GRPfileinfo *finfo = ((GRPfileinfo *) handle->opaque);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   207
    BAIL_IF_MACRO(!__PHYSFS_platformClose(finfo->handle), NULL, 0);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   208
    free(finfo);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   209
    free(handle);
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   210
    return(1);
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   211
} /* GRP_fileClose */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   212
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   213
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   214
static int grp_open(const char *filename, int forWriting,
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   215
                    void **fh, PHYSFS_uint32 *count)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   216
{
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   217
    PHYSFS_uint8 buf[12];
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   218
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   219
    *fh = NULL;
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   220
    BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, 0);
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   221
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   222
    *fh = __PHYSFS_platformOpenRead(filename);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   223
    BAIL_IF_MACRO(*fh == NULL, NULL, 0);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   224
    
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   225
    if (__PHYSFS_platformRead(*fh, buf, 12, 1) != 1)
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   226
        goto openGrp_failed;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   227
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   228
    if (memcmp(buf, "KenSilverman", 12) != 0)
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   229
    {
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   230
        __PHYSFS_setError(ERR_UNSUPPORTED_ARCHIVE);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   231
        goto openGrp_failed;
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   232
    } /* if */
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   233
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   234
    if (__PHYSFS_platformRead(*fh, count, sizeof (PHYSFS_uint32), 1) != 1)
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   235
        goto openGrp_failed;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   236
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   237
    *count = PHYSFS_swapULE32(*count);
175
45e423c38ff8 Fixed byte ordering bugs.
Ryan C. Gordon <icculus@icculus.org>
parents: 163
diff changeset
   238
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   239
    return(1);
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   240
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   241
openGrp_failed:
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   242
    if (*fh != NULL)
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   243
        __PHYSFS_platformClose(*fh);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   244
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   245
    *count = -1;
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   246
    *fh = NULL;
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   247
    return(0);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   248
} /* grp_open */
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   249
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   250
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   251
static int GRP_isArchive(const char *filename, int forWriting)
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   252
{
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   253
    void *fh;
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   254
    PHYSFS_uint32 fileCount;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   255
    int retval = grp_open(filename, forWriting, &fh, &fileCount);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   256
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   257
    if (fh != NULL)
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   258
        __PHYSFS_platformClose(fh);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   259
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   260
    return(retval);
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   261
} /* GRP_isArchive */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   262
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   263
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 427
diff changeset
   264
static int grp_entry_cmp(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   265
{
927
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   266
    if (one != two)
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   267
    {
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   268
        const GRPentry *a = (const GRPentry *) _a;
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   269
        return(strcmp(a[one].name, a[two].name));
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   270
    } /* if */
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   271
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   272
    return 0;
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 427
diff changeset
   273
} /* grp_entry_cmp */
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   274
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   275
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 427
diff changeset
   276
static void grp_entry_swap(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   277
{
927
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   278
    if (one != two)
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   279
    {
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   280
        GRPentry tmp;
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   281
        GRPentry *first = &(((GRPentry *) _a)[one]);
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   282
        GRPentry *second = &(((GRPentry *) _a)[two]);
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   283
        memcpy(&tmp, first, sizeof (GRPentry));
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   284
        memcpy(first, second, sizeof (GRPentry));
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   285
        memcpy(second, &tmp, sizeof (GRPentry));
8867d6c60ebf Various archiver swap and compare functions now check if they are
Ryan C. Gordon <icculus@icculus.org>
parents: 766
diff changeset
   286
    } /* if */
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 427
diff changeset
   287
} /* grp_entry_swap */
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   288
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   289
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   290
static int grp_load_entries(const char *name, int forWriting, GRPinfo *info)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   291
{
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   292
    void *fh = NULL;
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   293
    PHYSFS_uint32 fileCount;
370
da631e118455 Fixed entry loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 364
diff changeset
   294
    PHYSFS_uint32 location = 16;  /* sizeof sig. */
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   295
    GRPentry *entry;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   296
    char *ptr;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   297
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   298
    BAIL_IF_MACRO(!grp_open(name, forWriting, &fh, &fileCount), NULL, 0);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   299
    info->entryCount = fileCount;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   300
    info->entries = (GRPentry *) malloc(sizeof (GRPentry) * fileCount);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   301
    if (info->entries == NULL)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   302
    {
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   303
        __PHYSFS_platformClose(fh);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   304
        BAIL_MACRO(ERR_OUT_OF_MEMORY, 0);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   305
    } /* if */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   306
370
da631e118455 Fixed entry loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 364
diff changeset
   307
    location += (16 * fileCount);
da631e118455 Fixed entry loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 364
diff changeset
   308
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   309
    for (entry = info->entries; fileCount > 0; fileCount--, entry++)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   310
    {
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   311
        if (__PHYSFS_platformRead(fh, &entry->name, 12, 1) != 1)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   312
        {
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   313
            __PHYSFS_platformClose(fh);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   314
            return(0);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   315
        } /* if */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   316
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   317
        entry->name[12] = '\0';  /* name isn't null-terminated in file. */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   318
        if ((ptr = strchr(entry->name, ' ')) != NULL)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   319
            *ptr = '\0';  /* trim extra spaces. */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   320
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   321
        if (__PHYSFS_platformRead(fh, &entry->size, 4, 1) != 1)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   322
        {
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   323
            __PHYSFS_platformClose(fh);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   324
            return(0);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   325
        } /* if */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   326
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   327
        entry->size = PHYSFS_swapULE32(entry->size);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   328
        entry->startPos = location;
370
da631e118455 Fixed entry loading.
Ryan C. Gordon <icculus@icculus.org>
parents: 364
diff changeset
   329
        location += entry->size;
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   330
    } /* for */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   331
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   332
    __PHYSFS_platformClose(fh);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   333
464
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 427
diff changeset
   334
    __PHYSFS_sort(info->entries, info->entryCount,
21c8e0d1578c Generalized sorting routines, and removed individual implementations.
Ryan C. Gordon <icculus@icculus.org>
parents: 427
diff changeset
   335
                  grp_entry_cmp, grp_entry_swap);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   336
    return(1);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   337
} /* grp_load_entries */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   338
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   339
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   340
static DirHandle *GRP_openArchive(const char *name, int forWriting)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   341
{
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   342
    GRPinfo *info;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   343
    DirHandle *retval = malloc(sizeof (DirHandle));
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   344
    PHYSFS_sint64 modtime = __PHYSFS_platformGetLastModTime(name);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   345
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   346
    BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   347
    info = retval->opaque = malloc(sizeof (GRPinfo));
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   348
    if (info == NULL)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   349
    {
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   350
        __PHYSFS_setError(ERR_OUT_OF_MEMORY);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   351
        goto GRP_openArchive_failed;
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   352
    } /* if */
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   353
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   354
    memset(info, '\0', sizeof (GRPinfo));
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   355
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   356
    info->filename = (char *) malloc(strlen(name) + 1);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   357
    if (info->filename == NULL)
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   358
    {
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   359
        __PHYSFS_setError(ERR_OUT_OF_MEMORY);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   360
        goto GRP_openArchive_failed;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   361
    } /* if */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   362
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   363
    if (!grp_load_entries(name, forWriting, info))
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   364
        goto GRP_openArchive_failed;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   365
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   366
    strcpy(info->filename, name);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   367
    info->last_mod_time = modtime;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   368
    retval->funcs = &__PHYSFS_DirFunctions_GRP;
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   369
    return(retval);
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   370
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   371
GRP_openArchive_failed:
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   372
    if (retval != NULL)
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   373
    {
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   374
        if (retval->opaque != NULL)
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   375
        {
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   376
            if (info->filename != NULL)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   377
                free(info->filename);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   378
            if (info->entries != NULL)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   379
                free(info->entries);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   380
            free(info);
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   381
        } /* if */
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   382
        free(retval);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   383
    } /* if */
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   384
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   385
    return(NULL);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   386
} /* GRP_openArchive */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   387
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   388
41
ff60d39d0862 Architecture adjustment for enumerating files with regards to whether
Ryan C. Gordon <icculus@icculus.org>
parents: 39
diff changeset
   389
static LinkedStringList *GRP_enumerateFiles(DirHandle *h,
ff60d39d0862 Architecture adjustment for enumerating files with regards to whether
Ryan C. Gordon <icculus@icculus.org>
parents: 39
diff changeset
   390
                                            const char *dirname,
ff60d39d0862 Architecture adjustment for enumerating files with regards to whether
Ryan C. Gordon <icculus@icculus.org>
parents: 39
diff changeset
   391
                                            int omitSymLinks)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
{
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   393
    GRPinfo *info = ((GRPinfo *) h->opaque);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   394
    GRPentry *entry = info->entries;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   395
    LinkedStringList *retval = NULL, *p = NULL;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   396
    PHYSFS_uint32 max = info->entryCount;
161
4fcc863fdc5f -Added type casting that Ryan needs to approve.
Gregory S. Read <zeph@clutteredmind.org>
parents: 150
diff changeset
   397
    PHYSFS_uint32 i;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   398
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   399
    /* no directories in GRP files. */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   400
    BAIL_IF_MACRO(*dirname != '\0', ERR_NOT_A_DIR, NULL);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   401
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   402
    for (i = 0; i < max; i++, entry++)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   403
        retval = __PHYSFS_addToLinkedStringList(retval, &p, entry->name, -1);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   404
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   405
    return(retval);
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   406
} /* GRP_enumerateFiles */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   407
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   408
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   409
static GRPentry *grp_find_entry(GRPinfo *info, const char *name)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
{
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   411
    char *ptr = strchr(name, '.');
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   412
    GRPentry *a = info->entries;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   413
    PHYSFS_sint32 lo = 0;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   414
    PHYSFS_sint32 hi = (PHYSFS_sint32) (info->entryCount - 1);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   415
    PHYSFS_sint32 middle;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   416
    int rc;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   417
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   418
    /*
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   419
     * Rule out filenames to avoid unneeded processing...no dirs,
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   420
     *   big filenames, or extensions > 3 chars.
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   421
     */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   422
    BAIL_IF_MACRO((ptr) && (strlen(ptr) > 4), ERR_NO_SUCH_FILE, NULL);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   423
    BAIL_IF_MACRO(strlen(name) > 12, ERR_NO_SUCH_FILE, NULL);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   424
    BAIL_IF_MACRO(strchr(name, '/') != NULL, ERR_NO_SUCH_FILE, NULL);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   426
    while (lo <= hi)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   427
    {
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   428
        middle = lo + ((hi - lo) / 2);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   429
        rc = strcmp(name, a[middle].name);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   430
        if (rc == 0)  /* found it! */
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   431
            return(&a[middle]);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   432
        else if (rc > 0)
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   433
            lo = middle + 1;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   434
        else
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   435
            hi = middle - 1;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   436
    } /* while */
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   437
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   438
    BAIL_MACRO(ERR_NO_SUCH_FILE, NULL);
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   439
} /* grp_find_entry */
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   442
static int GRP_exists(DirHandle *h, const char *name)
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
{
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   444
    return(grp_find_entry(((GRPinfo *) h->opaque), name) != NULL);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
} /* GRP_exists */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   446
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   447
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   448
static int GRP_isDirectory(DirHandle *h, const char *name, int *fileExists)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   449
{
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   450
    *fileExists = GRP_exists(h, name);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
    return(0);  /* never directories in a groupfile. */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   452
} /* GRP_isDirectory */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   453
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   455
static int GRP_isSymLink(DirHandle *h, const char *name, int *fileExists)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
{
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   457
    *fileExists = GRP_exists(h, name);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   458
    return(0);  /* never symlinks in a groupfile. */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   459
} /* GRP_isSymLink */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   460
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   461
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   462
static PHYSFS_sint64 GRP_getLastModTime(DirHandle *h,
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   463
                                        const char *name,
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   464
                                        int *fileExists)
258
80fe5c9954dd getLastModTime implemented.
Ryan C. Gordon <icculus@icculus.org>
parents: 240
diff changeset
   465
{
393
468f75bf4d7d Minor cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 370
diff changeset
   466
    GRPinfo *info = ((GRPinfo *) h->opaque);
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   467
    PHYSFS_sint64 retval = -1;
393
468f75bf4d7d Minor cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 370
diff changeset
   468
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   469
    *fileExists = (grp_find_entry(info, name) != NULL);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   470
    if (*fileExists)  /* use time of GRP itself in the physical filesystem. */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   471
        retval = ((GRPinfo *) h->opaque)->last_mod_time;
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   472
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   473
    return(retval);
258
80fe5c9954dd getLastModTime implemented.
Ryan C. Gordon <icculus@icculus.org>
parents: 240
diff changeset
   474
} /* GRP_getLastModTime */
80fe5c9954dd getLastModTime implemented.
Ryan C. Gordon <icculus@icculus.org>
parents: 240
diff changeset
   475
80fe5c9954dd getLastModTime implemented.
Ryan C. Gordon <icculus@icculus.org>
parents: 240
diff changeset
   476
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   477
static FileHandle *GRP_openRead(DirHandle *h, const char *fnm, int *fileExists)
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   478
{
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   479
    GRPinfo *info = ((GRPinfo *) h->opaque);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
    FileHandle *retval;
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
    GRPfileinfo *finfo;
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   482
    GRPentry *entry;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   483
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   484
    entry = grp_find_entry(info, fnm);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   485
    *fileExists = (entry != NULL);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   486
    BAIL_IF_MACRO(entry == NULL, NULL, NULL);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   487
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   488
    retval = (FileHandle *) malloc(sizeof (FileHandle));
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   489
    BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   490
    finfo = (GRPfileinfo *) malloc(sizeof (GRPfileinfo));
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   491
    if (finfo == NULL)
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   492
    {
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   493
        free(retval);
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   494
        BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   495
    } /* if */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   496
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   497
    finfo->handle = __PHYSFS_platformOpenRead(info->filename);
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   498
    if ( (finfo->handle == NULL) ||
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   499
         (!__PHYSFS_platformSeek(finfo->handle, entry->startPos)) )
139
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   500
    {
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   501
        free(finfo);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   502
        free(retval);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   503
        return(NULL);
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   504
    } /* if */
616420dc210c Converted to file i/o abstraction, removed race condition.
Ryan C. Gordon <icculus@icculus.org>
parents: 132
diff changeset
   505
364
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   506
    finfo->curPos = 0;
51da162c76f7 Major overhauls. More efficient, robust, and bug-free.
Ryan C. Gordon <icculus@icculus.org>
parents: 335
diff changeset
   507
    finfo->entry = entry;
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   508
    retval->opaque = (void *) finfo;
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   509
    retval->funcs = &__PHYSFS_FileFunctions_GRP;
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   510
    retval->dirHandle = h;
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   511
    return(retval);
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   512
} /* GRP_openRead */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   513
467
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   514
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   515
static FileHandle *GRP_openWrite(DirHandle *h, const char *name)
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   516
{
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   517
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   518
} /* GRP_openWrite */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   519
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   520
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   521
static FileHandle *GRP_openAppend(DirHandle *h, const char *name)
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   522
{
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   523
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   524
} /* GRP_openAppend */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   525
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   526
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   527
static int GRP_remove(DirHandle *h, const char *name)
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   528
{
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   529
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   530
} /* GRP_remove */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   531
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   532
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   533
static int GRP_mkdir(DirHandle *h, const char *name)
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   534
{
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   535
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   536
} /* GRP_mkdir */
99664d9842cb Bunch of tedious corrections, optimizations, and cleanups.
Ryan C. Gordon <icculus@icculus.org>
parents: 464
diff changeset
   537
214
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
   538
#endif  /* defined PHYSFS_SUPPORTS_GRP */
19846c18071b Initial autoconf support.
Ryan C. Gordon <icculus@icculus.org>
parents: 194
diff changeset
   539
24
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   540
/* end of grp.c ... */
b050804123a3 Initial add. Implemented, buggy, but not crashing.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   541