PhysicsFS 2.0.3 imported.
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459 changed files with 87785 additions and 0 deletions
633
lib/physfs-2.0.3/archivers/qpak.c
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633
lib/physfs-2.0.3/archivers/qpak.c
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@ -0,0 +1,633 @@
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/*
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* QPAK support routines for PhysicsFS.
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*
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* This archiver handles the archive format utilized by Quake 1 and 2.
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* Quake3-based games use the PkZip/Info-Zip format (which our zip.c
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* archiver handles).
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*
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* ========================================================================
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*
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* This format info (in more detail) comes from:
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* http://debian.fmi.uni-sofia.bg/~sergei/cgsr/docs/pak.txt
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*
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* Quake PAK Format
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*
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* Header
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* (4 bytes) signature = 'PACK'
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* (4 bytes) directory offset
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* (4 bytes) directory length
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*
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* Directory
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* (56 bytes) file name
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* (4 bytes) file position
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* (4 bytes) file length
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*
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* ========================================================================
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*
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* Please see the file LICENSE.txt 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 (defined PHYSFS_SUPPORTS_QPAK)
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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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#if 1 /* Make this case insensitive? */
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#define QPAK_strcmp(x, y) __PHYSFS_stricmpASCII(x, y)
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#define QPAK_strncmp(x, y, z) __PHYSFS_strnicmpASCII(x, y, z)
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#else
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#define QPAK_strcmp(x, y) strcmp(x, y)
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#define QPAK_strncmp(x, y, z) strncmp(x, y, z)
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#endif
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typedef struct
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{
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char name[56];
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PHYSFS_uint32 startPos;
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PHYSFS_uint32 size;
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} QPAKentry;
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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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QPAKentry *entries;
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} QPAKinfo;
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typedef struct
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{
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void *handle;
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QPAKentry *entry;
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PHYSFS_uint32 curPos;
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} QPAKfileinfo;
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/* Magic numbers... */
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#define QPAK_SIG 0x4b434150 /* "PACK" in ASCII. */
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static void QPAK_dirClose(dvoid *opaque)
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{
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QPAKinfo *info = ((QPAKinfo *) opaque);
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allocator.Free(info->filename);
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allocator.Free(info->entries);
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allocator.Free(info);
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} /* QPAK_dirClose */
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static PHYSFS_sint64 QPAK_read(fvoid *opaque, void *buffer,
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PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
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{
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QPAKfileinfo *finfo = (QPAKfileinfo *) opaque;
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QPAKentry *entry = finfo->entry;
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PHYSFS_uint32 bytesLeft = entry->size - finfo->curPos;
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PHYSFS_uint32 objsLeft = (bytesLeft / objSize);
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PHYSFS_sint64 rc;
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if (objsLeft < objCount)
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objCount = objsLeft;
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rc = __PHYSFS_platformRead(finfo->handle, buffer, objSize, objCount);
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if (rc > 0)
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finfo->curPos += (PHYSFS_uint32) (rc * objSize);
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return(rc);
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} /* QPAK_read */
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static PHYSFS_sint64 QPAK_write(fvoid *opaque, const void *buffer,
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PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
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{
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BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
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} /* QPAK_write */
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static int QPAK_eof(fvoid *opaque)
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{
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QPAKfileinfo *finfo = (QPAKfileinfo *) opaque;
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QPAKentry *entry = finfo->entry;
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return(finfo->curPos >= entry->size);
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} /* QPAK_eof */
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static PHYSFS_sint64 QPAK_tell(fvoid *opaque)
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{
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return(((QPAKfileinfo *) opaque)->curPos);
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} /* QPAK_tell */
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static int QPAK_seek(fvoid *opaque, PHYSFS_uint64 offset)
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{
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QPAKfileinfo *finfo = (QPAKfileinfo *) opaque;
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QPAKentry *entry = finfo->entry;
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int rc;
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BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
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BAIL_IF_MACRO(offset >= entry->size, ERR_PAST_EOF, 0);
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rc = __PHYSFS_platformSeek(finfo->handle, entry->startPos + offset);
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if (rc)
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finfo->curPos = (PHYSFS_uint32) offset;
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return(rc);
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} /* QPAK_seek */
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static PHYSFS_sint64 QPAK_fileLength(fvoid *opaque)
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{
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QPAKfileinfo *finfo = (QPAKfileinfo *) opaque;
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return((PHYSFS_sint64) finfo->entry->size);
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} /* QPAK_fileLength */
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static int QPAK_fileClose(fvoid *opaque)
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{
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QPAKfileinfo *finfo = (QPAKfileinfo *) opaque;
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BAIL_IF_MACRO(!__PHYSFS_platformClose(finfo->handle), NULL, 0);
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allocator.Free(finfo);
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return(1);
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} /* QPAK_fileClose */
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static int qpak_open(const char *filename, int forWriting,
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void **fh, PHYSFS_uint32 *count)
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{
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PHYSFS_uint32 buf;
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*fh = NULL;
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BAIL_IF_MACRO(forWriting, ERR_ARC_IS_READ_ONLY, 0);
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*fh = __PHYSFS_platformOpenRead(filename);
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BAIL_IF_MACRO(*fh == NULL, NULL, 0);
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if (__PHYSFS_platformRead(*fh, &buf, sizeof (PHYSFS_uint32), 1) != 1)
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goto openQpak_failed;
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buf = PHYSFS_swapULE32(buf);
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GOTO_IF_MACRO(buf != QPAK_SIG, ERR_UNSUPPORTED_ARCHIVE, openQpak_failed);
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if (__PHYSFS_platformRead(*fh, &buf, sizeof (PHYSFS_uint32), 1) != 1)
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goto openQpak_failed;
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buf = PHYSFS_swapULE32(buf); /* directory table offset. */
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if (__PHYSFS_platformRead(*fh, count, sizeof (PHYSFS_uint32), 1) != 1)
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goto openQpak_failed;
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*count = PHYSFS_swapULE32(*count);
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/* corrupted archive? */
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GOTO_IF_MACRO((*count % 64) != 0, ERR_CORRUPTED, openQpak_failed);
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if (!__PHYSFS_platformSeek(*fh, buf))
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goto openQpak_failed;
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*count /= 64;
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return(1);
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openQpak_failed:
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if (*fh != NULL)
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__PHYSFS_platformClose(*fh);
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*count = -1;
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*fh = NULL;
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return(0);
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} /* qpak_open */
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static int QPAK_isArchive(const char *filename, int forWriting)
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{
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void *fh;
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PHYSFS_uint32 fileCount;
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int retval = qpak_open(filename, forWriting, &fh, &fileCount);
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if (fh != NULL)
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__PHYSFS_platformClose(fh);
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return(retval);
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} /* QPAK_isArchive */
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static int qpak_entry_cmp(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
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{
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if (one != two)
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{
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const QPAKentry *a = (const QPAKentry *) _a;
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return(QPAK_strcmp(a[one].name, a[two].name));
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} /* if */
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return 0;
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} /* qpak_entry_cmp */
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static void qpak_entry_swap(void *_a, PHYSFS_uint32 one, PHYSFS_uint32 two)
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{
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if (one != two)
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{
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QPAKentry tmp;
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QPAKentry *first = &(((QPAKentry *) _a)[one]);
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QPAKentry *second = &(((QPAKentry *) _a)[two]);
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memcpy(&tmp, first, sizeof (QPAKentry));
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memcpy(first, second, sizeof (QPAKentry));
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memcpy(second, &tmp, sizeof (QPAKentry));
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} /* if */
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} /* qpak_entry_swap */
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static int qpak_load_entries(const char *name, int forWriting, QPAKinfo *info)
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{
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void *fh = NULL;
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PHYSFS_uint32 fileCount;
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QPAKentry *entry;
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BAIL_IF_MACRO(!qpak_open(name, forWriting, &fh, &fileCount), NULL, 0);
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info->entryCount = fileCount;
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info->entries = (QPAKentry*) allocator.Malloc(sizeof(QPAKentry)*fileCount);
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if (info->entries == NULL)
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{
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__PHYSFS_platformClose(fh);
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BAIL_MACRO(ERR_OUT_OF_MEMORY, 0);
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} /* if */
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for (entry = info->entries; fileCount > 0; fileCount--, entry++)
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{
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PHYSFS_uint32 loc;
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if (__PHYSFS_platformRead(fh,&entry->name,sizeof(entry->name),1) != 1)
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{
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__PHYSFS_platformClose(fh);
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return(0);
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} /* if */
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if (__PHYSFS_platformRead(fh,&loc,sizeof(loc),1) != 1)
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{
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__PHYSFS_platformClose(fh);
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return(0);
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} /* if */
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if (__PHYSFS_platformRead(fh,&entry->size,sizeof(entry->size),1) != 1)
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{
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__PHYSFS_platformClose(fh);
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return(0);
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} /* if */
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entry->size = PHYSFS_swapULE32(entry->size);
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entry->startPos = PHYSFS_swapULE32(loc);
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} /* for */
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__PHYSFS_platformClose(fh);
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__PHYSFS_sort(info->entries, info->entryCount,
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qpak_entry_cmp, qpak_entry_swap);
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return(1);
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} /* qpak_load_entries */
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static void *QPAK_openArchive(const char *name, int forWriting)
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{
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QPAKinfo *info = (QPAKinfo *) allocator.Malloc(sizeof (QPAKinfo));
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PHYSFS_sint64 modtime = __PHYSFS_platformGetLastModTime(name);
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BAIL_IF_MACRO(info == NULL, ERR_OUT_OF_MEMORY, NULL);
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memset(info, '\0', sizeof (QPAKinfo));
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info->filename = (char *) allocator.Malloc(strlen(name) + 1);
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if (info->filename == NULL)
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{
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__PHYSFS_setError(ERR_OUT_OF_MEMORY);
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goto QPAK_openArchive_failed;
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} /* if */
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if (!qpak_load_entries(name, forWriting, info))
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goto QPAK_openArchive_failed;
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strcpy(info->filename, name);
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info->last_mod_time = modtime;
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return(info);
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QPAK_openArchive_failed:
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if (info != NULL)
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{
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if (info->filename != NULL)
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allocator.Free(info->filename);
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if (info->entries != NULL)
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allocator.Free(info->entries);
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allocator.Free(info);
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} /* if */
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return(NULL);
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} /* QPAK_openArchive */
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static PHYSFS_sint32 qpak_find_start_of_dir(QPAKinfo *info, const char *path,
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int stop_on_first_find)
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{
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PHYSFS_sint32 lo = 0;
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PHYSFS_sint32 hi = (PHYSFS_sint32) (info->entryCount - 1);
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PHYSFS_sint32 middle;
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PHYSFS_uint32 dlen = strlen(path);
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PHYSFS_sint32 retval = -1;
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const char *name;
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int rc;
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if (*path == '\0') /* root dir? */
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return(0);
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if ((dlen > 0) && (path[dlen - 1] == '/')) /* ignore trailing slash. */
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dlen--;
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while (lo <= hi)
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{
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middle = lo + ((hi - lo) / 2);
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name = info->entries[middle].name;
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rc = QPAK_strncmp(path, name, dlen);
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if (rc == 0)
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{
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char ch = name[dlen];
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if (ch < '/') /* make sure this isn't just a substr match. */
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rc = -1;
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else if (ch > '/')
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rc = 1;
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else
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{
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if (stop_on_first_find) /* Just checking dir's existance? */
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return(middle);
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if (name[dlen + 1] == '\0') /* Skip initial dir entry. */
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return(middle + 1);
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/* there might be more entries earlier in the list. */
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retval = middle;
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hi = middle - 1;
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} /* else */
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} /* if */
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if (rc > 0)
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lo = middle + 1;
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else
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hi = middle - 1;
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} /* while */
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return(retval);
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} /* qpak_find_start_of_dir */
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/*
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* Moved to seperate function so we can use alloca then immediately throw
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* away the allocated stack space...
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*/
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static void doEnumCallback(PHYSFS_EnumFilesCallback cb, void *callbackdata,
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const char *odir, const char *str, PHYSFS_sint32 ln)
|
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{
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char *newstr = __PHYSFS_smallAlloc(ln + 1);
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if (newstr == NULL)
|
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return;
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|
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memcpy(newstr, str, ln);
|
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newstr[ln] = '\0';
|
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cb(callbackdata, odir, newstr);
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__PHYSFS_smallFree(newstr);
|
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} /* doEnumCallback */
|
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static void QPAK_enumerateFiles(dvoid *opaque, const char *dname,
|
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int omitSymLinks, PHYSFS_EnumFilesCallback cb,
|
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const char *origdir, void *callbackdata)
|
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{
|
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QPAKinfo *info = ((QPAKinfo *) opaque);
|
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PHYSFS_sint32 dlen, dlen_inc, max, i;
|
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|
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i = qpak_find_start_of_dir(info, dname, 0);
|
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if (i == -1) /* no such directory. */
|
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return;
|
||||
|
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dlen = strlen(dname);
|
||||
if ((dlen > 0) && (dname[dlen - 1] == '/')) /* ignore trailing slash. */
|
||||
dlen--;
|
||||
|
||||
dlen_inc = ((dlen > 0) ? 1 : 0) + dlen;
|
||||
max = (PHYSFS_sint32) info->entryCount;
|
||||
while (i < max)
|
||||
{
|
||||
char *add;
|
||||
char *ptr;
|
||||
PHYSFS_sint32 ln;
|
||||
char *e = info->entries[i].name;
|
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if ((dlen) && ((QPAK_strncmp(e, dname, dlen)) || (e[dlen] != '/')))
|
||||
break; /* past end of this dir; we're done. */
|
||||
|
||||
add = e + dlen_inc;
|
||||
ptr = strchr(add, '/');
|
||||
ln = (PHYSFS_sint32) ((ptr) ? ptr-add : strlen(add));
|
||||
doEnumCallback(cb, callbackdata, origdir, add, ln);
|
||||
ln += dlen_inc; /* point past entry to children... */
|
||||
|
||||
/* increment counter and skip children of subdirs... */
|
||||
while ((++i < max) && (ptr != NULL))
|
||||
{
|
||||
char *e_new = info->entries[i].name;
|
||||
if ((QPAK_strncmp(e, e_new, ln) != 0) || (e_new[ln] != '/'))
|
||||
break;
|
||||
} /* while */
|
||||
} /* while */
|
||||
} /* QPAK_enumerateFiles */
|
||||
|
||||
|
||||
/*
|
||||
* This will find the QPAKentry associated with a path in platform-independent
|
||||
* notation. Directories don't have QPAKentries associated with them, but
|
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* (*isDir) will be set to non-zero if a dir was hit.
|
||||
*/
|
||||
static QPAKentry *qpak_find_entry(QPAKinfo *info, const char *path, int *isDir)
|
||||
{
|
||||
QPAKentry *a = info->entries;
|
||||
PHYSFS_sint32 pathlen = strlen(path);
|
||||
PHYSFS_sint32 lo = 0;
|
||||
PHYSFS_sint32 hi = (PHYSFS_sint32) (info->entryCount - 1);
|
||||
PHYSFS_sint32 middle;
|
||||
const char *thispath = NULL;
|
||||
int rc;
|
||||
|
||||
while (lo <= hi)
|
||||
{
|
||||
middle = lo + ((hi - lo) / 2);
|
||||
thispath = a[middle].name;
|
||||
rc = QPAK_strncmp(path, thispath, pathlen);
|
||||
|
||||
if (rc > 0)
|
||||
lo = middle + 1;
|
||||
|
||||
else if (rc < 0)
|
||||
hi = middle - 1;
|
||||
|
||||
else /* substring match...might be dir or entry or nothing. */
|
||||
{
|
||||
if (isDir != NULL)
|
||||
{
|
||||
*isDir = (thispath[pathlen] == '/');
|
||||
if (*isDir)
|
||||
return(NULL);
|
||||
} /* if */
|
||||
|
||||
if (thispath[pathlen] == '\0') /* found entry? */
|
||||
return(&a[middle]);
|
||||
/* adjust search params, try again. */
|
||||
else if (thispath[pathlen] > '/')
|
||||
hi = middle - 1;
|
||||
else
|
||||
lo = middle + 1;
|
||||
} /* if */
|
||||
} /* while */
|
||||
|
||||
if (isDir != NULL)
|
||||
*isDir = 0;
|
||||
|
||||
BAIL_MACRO(ERR_NO_SUCH_FILE, NULL);
|
||||
} /* qpak_find_entry */
|
||||
|
||||
|
||||
static int QPAK_exists(dvoid *opaque, const char *name)
|
||||
{
|
||||
int isDir;
|
||||
QPAKinfo *info = (QPAKinfo *) opaque;
|
||||
QPAKentry *entry = qpak_find_entry(info, name, &isDir);
|
||||
return((entry != NULL) || (isDir));
|
||||
} /* QPAK_exists */
|
||||
|
||||
|
||||
static int QPAK_isDirectory(dvoid *opaque, const char *name, int *fileExists)
|
||||
{
|
||||
QPAKinfo *info = (QPAKinfo *) opaque;
|
||||
int isDir;
|
||||
QPAKentry *entry = qpak_find_entry(info, name, &isDir);
|
||||
|
||||
*fileExists = ((isDir) || (entry != NULL));
|
||||
if (isDir)
|
||||
return(1); /* definitely a dir. */
|
||||
|
||||
BAIL_MACRO(ERR_NO_SUCH_FILE, 0);
|
||||
} /* QPAK_isDirectory */
|
||||
|
||||
|
||||
static int QPAK_isSymLink(dvoid *opaque, const char *name, int *fileExists)
|
||||
{
|
||||
*fileExists = QPAK_exists(opaque, name);
|
||||
return(0); /* never symlinks in a quake pak. */
|
||||
} /* QPAK_isSymLink */
|
||||
|
||||
|
||||
static PHYSFS_sint64 QPAK_getLastModTime(dvoid *opaque,
|
||||
const char *name,
|
||||
int *fileExists)
|
||||
{
|
||||
int isDir;
|
||||
QPAKinfo *info = ((QPAKinfo *) opaque);
|
||||
PHYSFS_sint64 retval = -1;
|
||||
QPAKentry *entry = qpak_find_entry(info, name, &isDir);
|
||||
|
||||
*fileExists = ((isDir) || (entry != NULL));
|
||||
if (*fileExists) /* use time of QPAK itself in the physical filesystem. */
|
||||
retval = info->last_mod_time;
|
||||
|
||||
return(retval);
|
||||
} /* QPAK_getLastModTime */
|
||||
|
||||
|
||||
static fvoid *QPAK_openRead(dvoid *opaque, const char *fnm, int *fileExists)
|
||||
{
|
||||
QPAKinfo *info = ((QPAKinfo *) opaque);
|
||||
QPAKfileinfo *finfo;
|
||||
QPAKentry *entry;
|
||||
int isDir;
|
||||
|
||||
entry = qpak_find_entry(info, fnm, &isDir);
|
||||
*fileExists = ((entry != NULL) || (isDir));
|
||||
BAIL_IF_MACRO(isDir, ERR_NOT_A_FILE, NULL);
|
||||
BAIL_IF_MACRO(entry == NULL, ERR_NO_SUCH_FILE, NULL);
|
||||
|
||||
finfo = (QPAKfileinfo *) allocator.Malloc(sizeof (QPAKfileinfo));
|
||||
BAIL_IF_MACRO(finfo == NULL, ERR_OUT_OF_MEMORY, NULL);
|
||||
|
||||
finfo->handle = __PHYSFS_platformOpenRead(info->filename);
|
||||
if ( (finfo->handle == NULL) ||
|
||||
(!__PHYSFS_platformSeek(finfo->handle, entry->startPos)) )
|
||||
{
|
||||
allocator.Free(finfo);
|
||||
return(NULL);
|
||||
} /* if */
|
||||
|
||||
finfo->curPos = 0;
|
||||
finfo->entry = entry;
|
||||
return(finfo);
|
||||
} /* QPAK_openRead */
|
||||
|
||||
|
||||
static fvoid *QPAK_openWrite(dvoid *opaque, const char *name)
|
||||
{
|
||||
BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
|
||||
} /* QPAK_openWrite */
|
||||
|
||||
|
||||
static fvoid *QPAK_openAppend(dvoid *opaque, const char *name)
|
||||
{
|
||||
BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
|
||||
} /* QPAK_openAppend */
|
||||
|
||||
|
||||
static int QPAK_remove(dvoid *opaque, const char *name)
|
||||
{
|
||||
BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
|
||||
} /* QPAK_remove */
|
||||
|
||||
|
||||
static int QPAK_mkdir(dvoid *opaque, const char *name)
|
||||
{
|
||||
BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
|
||||
} /* QPAK_mkdir */
|
||||
|
||||
|
||||
const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_QPAK =
|
||||
{
|
||||
"PAK",
|
||||
QPAK_ARCHIVE_DESCRIPTION,
|
||||
"Ryan C. Gordon <icculus@icculus.org>",
|
||||
"http://icculus.org/physfs/",
|
||||
};
|
||||
|
||||
|
||||
const PHYSFS_Archiver __PHYSFS_Archiver_QPAK =
|
||||
{
|
||||
&__PHYSFS_ArchiveInfo_QPAK,
|
||||
QPAK_isArchive, /* isArchive() method */
|
||||
QPAK_openArchive, /* openArchive() method */
|
||||
QPAK_enumerateFiles, /* enumerateFiles() method */
|
||||
QPAK_exists, /* exists() method */
|
||||
QPAK_isDirectory, /* isDirectory() method */
|
||||
QPAK_isSymLink, /* isSymLink() method */
|
||||
QPAK_getLastModTime, /* getLastModTime() method */
|
||||
QPAK_openRead, /* openRead() method */
|
||||
QPAK_openWrite, /* openWrite() method */
|
||||
QPAK_openAppend, /* openAppend() method */
|
||||
QPAK_remove, /* remove() method */
|
||||
QPAK_mkdir, /* mkdir() method */
|
||||
QPAK_dirClose, /* dirClose() method */
|
||||
QPAK_read, /* read() method */
|
||||
QPAK_write, /* write() method */
|
||||
QPAK_eof, /* eof() method */
|
||||
QPAK_tell, /* tell() method */
|
||||
QPAK_seek, /* seek() method */
|
||||
QPAK_fileLength, /* fileLength() method */
|
||||
QPAK_fileClose /* fileClose() method */
|
||||
};
|
||||
|
||||
#endif /* defined PHYSFS_SUPPORTS_QPAK */
|
||||
|
||||
/* end of qpak.c ... */
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue