archivers/mvl.c
author Ryan C. Gordon <icculus@icculus.org>
Sun, 26 Sep 2004 00:25:04 +0000
changeset 648 5c993684b8f2
parent 564 ce114ffdf485
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.
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/*
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 * MVL support routines for PhysicsFS.
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 *
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 * This driver handles Descent II Movielib archives.
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 *
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 * The file format of MVL is quite easy...
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 *
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 *   //MVL File format - Written by Heiko Herrmann
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 *   char sig[4] = {'D','M', 'V', 'L'}; // "DMVL"=Descent MoVie Library
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 *
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 *   int num_files; // the number of files in this MVL
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 *
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 *   struct {
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 *    char file_name[13]; // Filename, padded to 13 bytes with 0s
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 *    int file_size; // filesize in bytes
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 *   }DIR_STRUCT[num_files];
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 *
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 *   struct {
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 *    char data[file_size]; // The file data
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 *   }FILE_STRUCT[num_files];
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 *
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 * (That info is from http://www.descent2.com/ddn/specs/mvl/)
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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 Bradley Bell.
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 *  Based on grp.c 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_MVL)
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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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} MVLentry;
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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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    MVLentry *entries;
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} MVLinfo;
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typedef struct
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{
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    void *handle;
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    MVLentry *entry;
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    PHYSFS_uint32 curPos;
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} MVLfileinfo;
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static void MVL_dirClose(void *opaque);
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static PHYSFS_sint64 MVL_read(FileHandle *handle, void *buffer,
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                              PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
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static PHYSFS_sint64 MVL_write(FileHandle *handle, const void *buffer,
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                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount);
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static int MVL_eof(FileHandle *handle);
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static PHYSFS_sint64 MVL_tell(FileHandle *handle);
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static int MVL_seek(FileHandle *handle, PHYSFS_uint64 offset);
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static PHYSFS_sint64 MVL_fileLength(FileHandle *handle);
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static int MVL_fileClose(FileHandle *handle);
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static int MVL_isArchive(const char *filename, int forWriting);
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static void *MVL_openArchive(const char *name, int forWriting);
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static LinkedStringList *MVL_enumerateFiles(void *opaque,
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                                            const char *dirname,
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                                            int omitSymLinks);
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static int MVL_exists(void *opaque, const char *name);
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static int MVL_isDirectory(void *opaque, const char *name, int *fileExists);
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static int MVL_isSymLink(void *opaque, const char *name, int *fileExists);
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static PHYSFS_sint64 MVL_getLastModTime(void *opaque, const char *n, int *e);
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static FileHandle *MVL_openRead(void *opaque, const char *name, int *exist);
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static FileHandle *MVL_openWrite(void *opaque, const char *name);
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static FileHandle *MVL_openAppend(void *opaque, const char *name);
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static int MVL_remove(void *opaque, const char *name);
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static int MVL_mkdir(void *opaque, const char *name);
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const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_MVL =
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{
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    "MVL",
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    MVL_ARCHIVE_DESCRIPTION,
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    "Bradley Bell <btb@icculus.org>",
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    "http://icculus.org/physfs/",
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};
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static const FileFunctions __PHYSFS_FileFunctions_MVL =
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{
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    MVL_read,       /* read() method       */
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    MVL_write,      /* write() method      */
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    MVL_eof,        /* eof() method        */
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    MVL_tell,       /* tell() method       */
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    MVL_seek,       /* seek() method       */
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    MVL_fileLength, /* fileLength() method */
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    MVL_fileClose   /* fileClose() method  */
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};
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const DirFunctions __PHYSFS_DirFunctions_MVL =
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{
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    &__PHYSFS_ArchiveInfo_MVL,
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    MVL_isArchive,          /* isArchive() method      */
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    MVL_openArchive,        /* openArchive() method    */
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    MVL_enumerateFiles,     /* enumerateFiles() method */
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    MVL_exists,             /* exists() method         */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   120
    MVL_isDirectory,        /* isDirectory() method    */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   121
    MVL_isSymLink,          /* isSymLink() method      */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   122
    MVL_getLastModTime,     /* getLastModTime() method */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   123
    MVL_openRead,           /* openRead() method       */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   124
    MVL_openWrite,          /* openWrite() method      */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   125
    MVL_openAppend,         /* openAppend() method     */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   126
    MVL_remove,             /* remove() method         */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   127
    MVL_mkdir,              /* mkdir() method          */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   128
    MVL_dirClose            /* dirClose() method       */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   129
};
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   130
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   131
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   132
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   133
static void MVL_dirClose(void *opaque)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   134
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   135
    MVLinfo *info = ((MVLinfo *) opaque);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   136
    free(info->filename);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   137
    free(info->entries);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   138
    free(info);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   139
} /* MVL_dirClose */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   140
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   141
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   142
static PHYSFS_sint64 MVL_read(FileHandle *handle, void *buffer,
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   143
                              PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   144
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   145
    MVLfileinfo *finfo = (MVLfileinfo *) (handle->opaque);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   146
    MVLentry *entry = finfo->entry;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   147
    PHYSFS_uint32 bytesLeft = entry->size - finfo->curPos;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   148
    PHYSFS_uint32 objsLeft = (bytesLeft / objSize);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   149
    PHYSFS_sint64 rc;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   150
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   151
    if (objsLeft < objCount)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   152
        objCount = objsLeft;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   153
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   154
    rc = __PHYSFS_platformRead(finfo->handle, buffer, objSize, objCount);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   155
    if (rc > 0)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   156
        finfo->curPos += (PHYSFS_uint32) (rc * objSize);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   157
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   158
    return(rc);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   159
} /* MVL_read */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   160
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   161
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   162
static PHYSFS_sint64 MVL_write(FileHandle *handle, const void *buffer,
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   163
                               PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   164
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   165
    BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   166
} /* MVL_write */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   167
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   168
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   169
static int MVL_eof(FileHandle *handle)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   170
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   171
    MVLfileinfo *finfo = (MVLfileinfo *) (handle->opaque);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   172
    MVLentry *entry = finfo->entry;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   173
    return(finfo->curPos >= entry->size);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   174
} /* MVL_eof */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   175
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   176
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   177
static PHYSFS_sint64 MVL_tell(FileHandle *handle)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   178
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   179
    return(((MVLfileinfo *) (handle->opaque))->curPos);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   180
} /* MVL_tell */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   181
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   182
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   183
static int MVL_seek(FileHandle *handle, PHYSFS_uint64 offset)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   184
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   185
    MVLfileinfo *finfo = (MVLfileinfo *) (handle->opaque);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   186
    MVLentry *entry = finfo->entry;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   187
    int rc;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   188
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   189
    BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   190
    BAIL_IF_MACRO(offset >= entry->size, ERR_PAST_EOF, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   191
    rc = __PHYSFS_platformSeek(finfo->handle, entry->startPos + offset);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   192
    if (rc)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   193
        finfo->curPos = (PHYSFS_uint32) offset;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   194
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   195
    return(rc);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   196
} /* MVL_seek */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   197
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   198
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   199
static PHYSFS_sint64 MVL_fileLength(FileHandle *handle)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   200
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   201
    MVLfileinfo *finfo = ((MVLfileinfo *) handle->opaque);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   202
    return((PHYSFS_sint64) finfo->entry->size);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   203
} /* MVL_fileLength */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   204
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   205
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   206
static int MVL_fileClose(FileHandle *handle)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   207
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   208
    MVLfileinfo *finfo = ((MVLfileinfo *) handle->opaque);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   209
    BAIL_IF_MACRO(!__PHYSFS_platformClose(finfo->handle), NULL, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   210
    free(finfo);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   211
    free(handle);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   212
    return(1);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   213
} /* MVL_fileClose */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   214
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   215
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   216
static int mvl_open(const char *filename, int forWriting,
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   217
                    void **fh, PHYSFS_uint32 *count)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   218
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   219
    PHYSFS_uint8 buf[4];
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   220
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   221
    *fh = NULL;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   222
    BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   223
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   224
    *fh = __PHYSFS_platformOpenRead(filename);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   225
    BAIL_IF_MACRO(*fh == NULL, NULL, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   226
    
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   227
    if (__PHYSFS_platformRead(*fh, buf, 4, 1) != 1)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   228
        goto openMvl_failed;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   229
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   230
    if (memcmp(buf, "DMVL", 4) != 0)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   231
    {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   232
        __PHYSFS_setError(ERR_UNSUPPORTED_ARCHIVE);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   233
        goto openMvl_failed;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   234
    } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   235
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   236
    if (__PHYSFS_platformRead(*fh, count, sizeof (PHYSFS_uint32), 1) != 1)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   237
        goto openMvl_failed;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   238
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   239
    *count = PHYSFS_swapULE32(*count);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   240
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   241
    return(1);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   242
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   243
openMvl_failed:
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   244
    if (*fh != NULL)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   245
        __PHYSFS_platformClose(*fh);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   246
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   247
    *count = -1;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   248
    *fh = NULL;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   249
    return(0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   250
} /* mvl_open */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   251
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   252
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   253
static int MVL_isArchive(const char *filename, int forWriting)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   254
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   255
    void *fh;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   256
    PHYSFS_uint32 fileCount;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   257
    int retval = mvl_open(filename, forWriting, &fh, &fileCount);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   258
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   259
    if (fh != NULL)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   260
        __PHYSFS_platformClose(fh);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   261
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   262
    return(retval);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   263
} /* MVL_isArchive */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   264
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   265
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   266
static int mvl_entry_cmp(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   267
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   268
    MVLentry *a = (MVLentry *) _a;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   269
    return(strcmp(a[one].name, a[two].name));
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   270
} /* mvl_entry_cmp */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   271
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   272
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   273
static void mvl_entry_swap(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   274
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   275
    MVLentry tmp;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   276
    MVLentry *first = &(((MVLentry *) _a)[one]);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   277
    MVLentry *second = &(((MVLentry *) _a)[two]);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   278
    memcpy(&tmp, first, sizeof (MVLentry));
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   279
    memcpy(first, second, sizeof (MVLentry));
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   280
    memcpy(second, &tmp, sizeof (MVLentry));
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   281
} /* mvl_entry_swap */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   282
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   283
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   284
static int mvl_load_entries(const char *name, int forWriting, MVLinfo *info)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   285
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   286
    void *fh = NULL;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   287
    PHYSFS_uint32 fileCount;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   288
    PHYSFS_uint32 location = 8;  /* sizeof sig. */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   289
    MVLentry *entry;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   290
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   291
    BAIL_IF_MACRO(!mvl_open(name, forWriting, &fh, &fileCount), NULL, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   292
    info->entryCount = fileCount;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   293
    info->entries = (MVLentry *) malloc(sizeof (MVLentry) * fileCount);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   294
    if (info->entries == NULL)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   295
    {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   296
        __PHYSFS_platformClose(fh);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   297
        BAIL_MACRO(ERR_OUT_OF_MEMORY, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   298
    } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   299
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   300
    location += (17 * fileCount);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   301
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   302
    for (entry = info->entries; fileCount > 0; fileCount--, entry++)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   303
    {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   304
        if (__PHYSFS_platformRead(fh, &entry->name, 13, 1) != 1)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   305
        {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   306
            __PHYSFS_platformClose(fh);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   307
            return(0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   308
        } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   309
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   310
        if (__PHYSFS_platformRead(fh, &entry->size, 4, 1) != 1)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   311
        {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   312
            __PHYSFS_platformClose(fh);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   313
            return(0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   314
        } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   315
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   316
        entry->size = PHYSFS_swapULE32(entry->size);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   317
        entry->startPos = location;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   318
        location += entry->size;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   319
    } /* for */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   320
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   321
    __PHYSFS_platformClose(fh);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   322
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   323
    __PHYSFS_sort(info->entries, info->entryCount,
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   324
                  mvl_entry_cmp, mvl_entry_swap);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   325
    return(1);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   326
} /* mvl_load_entries */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   327
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   328
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   329
static void *MVL_openArchive(const char *name, int forWriting)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   330
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   331
    PHYSFS_sint64 modtime = __PHYSFS_platformGetLastModTime(name);
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   332
    MVLinfo *info = malloc(sizeof (MVLinfo));
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   333
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   334
    BAIL_IF_MACRO(info == NULL, ERR_OUT_OF_MEMORY, NULL);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   335
    memset(info, '\0', sizeof (MVLinfo));
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   336
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   337
    info->filename = (char *) malloc(strlen(name) + 1);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   338
    if (info->filename == NULL)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   339
    {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   340
        __PHYSFS_setError(ERR_OUT_OF_MEMORY);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   341
        goto MVL_openArchive_failed;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   342
    } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   343
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   344
    if (!mvl_load_entries(name, forWriting, info))
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   345
        goto MVL_openArchive_failed;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   346
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   347
    strcpy(info->filename, name);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   348
    info->last_mod_time = modtime;
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   349
    return(info);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   350
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   351
MVL_openArchive_failed:
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   352
    if (info != NULL)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   353
    {
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   354
        if (info->filename != NULL)
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   355
            free(info->filename);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   356
        if (info->entries != NULL)
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   357
            free(info->entries);
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   358
        free(info);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   359
    } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   360
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   361
    return(NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   362
} /* MVL_openArchive */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   363
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   364
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   365
static LinkedStringList *MVL_enumerateFiles(void *opaque,
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   366
                                            const char *dirname,
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   367
                                            int omitSymLinks)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   368
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   369
    MVLinfo *info = ((MVLinfo *) opaque);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   370
    MVLentry *entry = info->entries;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   371
    LinkedStringList *retval = NULL, *p = NULL;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   372
    PHYSFS_uint32 max = info->entryCount;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   373
    PHYSFS_uint32 i;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   374
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   375
    /* no directories in MVL files. */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   376
    BAIL_IF_MACRO(*dirname != '\0', ERR_NOT_A_DIR, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   377
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   378
    for (i = 0; i < max; i++, entry++)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   379
        retval = __PHYSFS_addToLinkedStringList(retval, &p, entry->name, -1);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   380
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   381
    return(retval);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   382
} /* MVL_enumerateFiles */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   383
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   384
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   385
static MVLentry *mvl_find_entry(MVLinfo *info, const char *name)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   386
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   387
    char *ptr = strchr(name, '.');
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   388
    MVLentry *a = info->entries;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   389
    PHYSFS_sint32 lo = 0;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   390
    PHYSFS_sint32 hi = (PHYSFS_sint32) (info->entryCount - 1);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
    PHYSFS_sint32 middle;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
    int rc;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   394
    /*
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   395
     * Rule out filenames to avoid unneeded processing...no dirs,
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   396
     *   big filenames, or extensions > 3 chars.
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   397
     */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   398
    BAIL_IF_MACRO((ptr) && (strlen(ptr) > 4), ERR_NO_SUCH_FILE, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   399
    BAIL_IF_MACRO(strlen(name) > 12, ERR_NO_SUCH_FILE, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   400
    BAIL_IF_MACRO(strchr(name, '/') != NULL, ERR_NO_SUCH_FILE, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   401
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   402
    while (lo <= hi)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   403
    {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   404
        middle = lo + ((hi - lo) / 2);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   405
        rc = __PHYSFS_platformStricmp(name, a[middle].name);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   406
        if (rc == 0)  /* found it! */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   407
            return(&a[middle]);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   408
        else if (rc > 0)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   409
            lo = middle + 1;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   410
        else
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   411
            hi = middle - 1;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   412
    } /* while */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   413
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   414
    BAIL_MACRO(ERR_NO_SUCH_FILE, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   415
} /* mvl_find_entry */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   416
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   417
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   418
static int MVL_exists(void *opaque, const char *name)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   419
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   420
    return(mvl_find_entry(((MVLinfo *) opaque), name) != NULL);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   421
} /* MVL_exists */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   422
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   423
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   424
static int MVL_isDirectory(void *opaque, const char *name, int *fileExists)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   425
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   426
    *fileExists = MVL_exists(opaque, name);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   427
    return(0);  /* never directories in a groupfile. */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   428
} /* MVL_isDirectory */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   429
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   430
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   431
static int MVL_isSymLink(void *opaque, const char *name, int *fileExists)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   432
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   433
    *fileExists = MVL_exists(opaque, name);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   434
    return(0);  /* never symlinks in a groupfile. */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   435
} /* MVL_isSymLink */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   436
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   437
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   438
static PHYSFS_sint64 MVL_getLastModTime(void *opaque,
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   439
                                        const char *name,
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   440
                                        int *fileExists)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   441
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   442
    MVLinfo *info = ((MVLinfo *) opaque);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   443
    PHYSFS_sint64 retval = -1;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   444
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   445
    *fileExists = (mvl_find_entry(info, name) != NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   446
    if (*fileExists)  /* use time of MVL itself in the physical filesystem. */
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   447
        retval = info->last_mod_time;
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   448
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   449
    return(retval);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   450
} /* MVL_getLastModTime */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   451
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   452
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   453
static FileHandle *MVL_openRead(void *opaque, const char *fnm, int *fileExists)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   454
{
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   455
    MVLinfo *info = ((MVLinfo *) opaque);
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
    FileHandle *retval;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   457
    MVLfileinfo *finfo;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   458
    MVLentry *entry;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   459
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   460
    entry = mvl_find_entry(info, fnm);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   461
    *fileExists = (entry != NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   462
    BAIL_IF_MACRO(entry == NULL, NULL, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   463
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   464
    retval = (FileHandle *) malloc(sizeof (FileHandle));
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   465
    BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   466
    finfo = (MVLfileinfo *) malloc(sizeof (MVLfileinfo));
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   467
    if (finfo == NULL)
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   468
    {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   469
        free(retval);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   470
        BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   471
    } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   472
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   473
    finfo->handle = __PHYSFS_platformOpenRead(info->filename);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   474
    if ( (finfo->handle == NULL) ||
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   475
         (!__PHYSFS_platformSeek(finfo->handle, entry->startPos)) )
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   476
    {
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   477
        free(finfo);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   478
        free(retval);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   479
        return(NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   480
    } /* if */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   481
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   482
    finfo->curPos = 0;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   483
    finfo->entry = entry;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   484
    retval->opaque = (void *) finfo;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   485
    retval->funcs = &__PHYSFS_FileFunctions_MVL;
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   486
    return(retval);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   487
} /* MVL_openRead */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   488
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   489
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   490
static FileHandle *MVL_openWrite(void *opaque, const char *name)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   491
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   492
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   493
} /* MVL_openWrite */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   494
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   495
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   496
static FileHandle *MVL_openAppend(void *opaque, const char *name)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   497
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   498
    BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   499
} /* MVL_openAppend */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   500
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   501
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   502
static int MVL_remove(void *opaque, const char *name)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   503
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   504
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   505
} /* MVL_remove */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   506
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   507
648
5c993684b8f2 Cleaned up archiver interface to not deal with DirHandles anymore,
Ryan C. Gordon <icculus@icculus.org>
parents: 564
diff changeset
   508
static int MVL_mkdir(void *opaque, const char *name)
553
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   509
{
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   510
    BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   511
} /* MVL_mkdir */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   512
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   513
#endif  /* defined PHYSFS_SUPPORTS_MVL */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   514
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   515
/* end of mvl.c ... */
4338d9c0bbcd Descent I/II HOG and MVL archive support (thanks, Bradley Bell!).
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   516