misc/libphysfs/src/archiver_hog.c
branchphysfslayer
changeset 8524 a65e9bcf0a03
parent 8522 1853628ae285
child 8526 9f2bd885d773
--- a/misc/libphysfs/src/archiver_hog.c	Fri Feb 22 05:15:48 2013 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,116 +0,0 @@
-/*
- * HOG support routines for PhysicsFS.
- *
- * This driver handles Descent I/II HOG archives.
- *
- * The format is very simple:
- *
- *   The file always starts with the 3-byte signature "DHF" (Descent
- *   HOG file). After that the files of a HOG are just attached after
- *   another, divided by a 17 bytes header, which specifies the name
- *   and length (in bytes) of the forthcoming file! So you just read
- *   the header with its information of how big the following file is,
- *   and then skip exact that number of bytes to get to the next file
- *   in that HOG.
- *
- *    char sig[3] = {'D', 'H', 'F'}; // "DHF"=Descent HOG File
- *
- *    struct {
- *     char file_name[13]; // Filename, padded to 13 bytes with 0s
- *     int file_size; // filesize in bytes
- *     char data[file_size]; // The file data
- *    } FILE_STRUCT; // Repeated until the end of the file.
- *
- * (That info is from http://www.descent2.com/ddn/specs/hog/)
- *
- * Please see the file LICENSE.txt in the source's root directory.
- *
- *  This file written by Bradley Bell.
- *  Based on grp.c by Ryan C. Gordon.
- */
-
-#define __PHYSICSFS_INTERNAL__
-#include "physfs_internal.h"
-
-#if PHYSFS_SUPPORTS_HOG
-
-static UNPKentry *hogLoadEntries(PHYSFS_Io *io, PHYSFS_uint32 *_entCount)
-{
-    const PHYSFS_uint64 iolen = io->length(io);
-    PHYSFS_uint32 entCount = 0;
-    void *ptr = NULL;
-    UNPKentry *entries = NULL;
-    UNPKentry *entry = NULL;
-    PHYSFS_uint32 size = 0;
-    PHYSFS_uint32 pos = 3;
-
-    while (pos < iolen)
-    {
-        entCount++;
-        ptr = allocator.Realloc(ptr, sizeof (UNPKentry) * entCount);
-        GOTO_IF_MACRO(ptr == NULL, PHYSFS_ERR_OUT_OF_MEMORY, failed);
-        entries = (UNPKentry *) ptr;
-        entry = &entries[entCount-1];
-
-        GOTO_IF_MACRO(!__PHYSFS_readAll(io, &entry->name, 13), ERRPASS, failed);
-        pos += 13;
-        GOTO_IF_MACRO(!__PHYSFS_readAll(io, &size, 4), ERRPASS, failed);
-        pos += 4;
-
-        entry->size = PHYSFS_swapULE32(size);
-        entry->startPos = pos;
-        pos += size;
-
-        /* skip over entry */
-        GOTO_IF_MACRO(!io->seek(io, pos), ERRPASS, failed);
-    } /* while */
-
-    *_entCount = entCount;
-    return entries;
-
-failed:
-    allocator.Free(entries);
-    return NULL;
-} /* hogLoadEntries */
-
-
-static void *HOG_openArchive(PHYSFS_Io *io, const char *name, int forWriting)
-{
-    PHYSFS_uint8 buf[3];
-    PHYSFS_uint32 count = 0;
-    UNPKentry *entries = NULL;
-
-    assert(io != NULL);  /* shouldn't ever happen. */
-    BAIL_IF_MACRO(forWriting, PHYSFS_ERR_READ_ONLY, NULL);
-    BAIL_IF_MACRO(!__PHYSFS_readAll(io, buf, 3), ERRPASS, NULL);
-    BAIL_IF_MACRO(memcmp(buf, "DHF", 3) != 0, PHYSFS_ERR_UNSUPPORTED, NULL);
-
-    entries = hogLoadEntries(io, &count);
-    BAIL_IF_MACRO(!entries, ERRPASS, NULL);
-    return UNPK_openArchive(io, entries, count);
-} /* HOG_openArchive */
-
-
-const PHYSFS_Archiver __PHYSFS_Archiver_HOG =
-{
-    {
-        "HOG",
-        "Descent I/II HOG file format",
-        "Bradley Bell <btb@icculus.org>",
-        "http://icculus.org/physfs/",
-    },
-    HOG_openArchive,         /* openArchive() method    */
-    UNPK_enumerateFiles,     /* enumerateFiles() method */
-    UNPK_openRead,           /* openRead() method       */
-    UNPK_openWrite,          /* openWrite() method      */
-    UNPK_openAppend,         /* openAppend() method     */
-    UNPK_remove,             /* remove() method         */
-    UNPK_mkdir,              /* mkdir() method          */
-    UNPK_closeArchive,       /* closeArchive() method   */
-    UNPK_stat                /* stat() method           */
-};
-
-#endif  /* defined PHYSFS_SUPPORTS_HOG */
-
-/* end of hog.c ... */
-