archiver_dir.c
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/*
* Standard directory I/O support routines for PhysicsFS.
*
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* Please see the file LICENSE.txt in the source's root directory.
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*
* This file written by Ryan C. Gordon.
*/
#include <stdio.h>
#include <stdlib.h>
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#include <string.h>
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#include "physfs.h"
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#define __PHYSICSFS_INTERNAL__
#include "physfs_internal.h"
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/* There's no PHYSFS_Io interface here. Use __PHYSFS_createNativeIo(). */
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static void *DIR_openArchive(PHYSFS_Io *io, const char *name, int forWriting)
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const char *dirsep = PHYSFS_getDirSeparator();
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char *retval = NULL;
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const size_t namelen = strlen(name);
const size_t seplen = strlen(dirsep);
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assert(io == NULL); /* shouldn't create an Io for these. */
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BAIL_IF_MACRO(!__PHYSFS_platformIsDirectory(name), ERR_NOT_AN_ARCHIVE, NULL);
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retval = allocator.Malloc(namelen + seplen + 1);
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BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
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/* make sure there's a dir separator at the end of the string */
/* !!! FIXME: is there really any place where (seplen != 1)? */
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strcpy(retval, name);
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if (strcmp((name + namelen) - seplen, dirsep) != 0)
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strcat(retval, dirsep);
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} /* DIR_openArchive */
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/* !!! FIXME: I would like to smallAlloc() all these conversions somehow. */
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static void DIR_enumerateFiles(dvoid *opaque, const char *dname,
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int omitSymLinks, PHYSFS_EnumFilesCallback cb,
const char *origdir, void *callbackdata)
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char *d = __PHYSFS_platformCvtToDependent((char *) opaque, dname, NULL);
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if (d != NULL)
{
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__PHYSFS_platformEnumerateFiles(d, omitSymLinks, cb,
origdir, callbackdata);
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allocator.Free(d);
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} /* DIR_enumerateFiles */
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static int DIR_exists(dvoid *opaque, const char *name)
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char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL);
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int retval;
BAIL_IF_MACRO(f == NULL, NULL, 0);
retval = __PHYSFS_platformExists(f);
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allocator.Free(f);
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} /* DIR_exists */
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static int DIR_isDirectory(dvoid *opaque, const char *name, int *fileExists)
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char *d = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL);
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int retval = 0;
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BAIL_IF_MACRO(d == NULL, NULL, 0);
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*fileExists = __PHYSFS_platformExists(d);
if (*fileExists)
retval = __PHYSFS_platformIsDirectory(d);
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allocator.Free(d);
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} /* DIR_isDirectory */
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static int DIR_isSymLink(dvoid *opaque, const char *name, int *fileExists)
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char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL);
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int retval = 0;
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BAIL_IF_MACRO(f == NULL, NULL, 0);
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*fileExists = __PHYSFS_platformExists(f);
if (*fileExists)
retval = __PHYSFS_platformIsSymLink(f);
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allocator.Free(f);
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} /* DIR_isSymLink */
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static PHYSFS_Io *doOpen(dvoid *opaque, const char *name,
const int mode, int *fileExists)
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char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL);
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PHYSFS_Io *io = NULL;
int existtmp = 0;
if (fileExists == NULL)
fileExists = &existtmp;
*fileExists = 0;
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BAIL_IF_MACRO(f == NULL, NULL, NULL);
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io = __PHYSFS_createNativeIo(f, mode);
allocator.Free(f);
if (io == NULL)
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{
*fileExists = __PHYSFS_platformExists(f);
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return NULL;
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} /* if */
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*fileExists = 1;
return io;
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} /* doOpen */
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static PHYSFS_Io *DIR_openRead(dvoid *opaque, const char *fnm, int *exist)
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return doOpen(opaque, fnm, 'r', exist);
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} /* DIR_openRead */
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static PHYSFS_Io *DIR_openWrite(dvoid *opaque, const char *filename)
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return doOpen(opaque, filename, 'w', NULL);
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} /* DIR_openWrite */
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static PHYSFS_Io *DIR_openAppend(dvoid *opaque, const char *filename)
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return doOpen(opaque, filename, 'a', NULL);
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} /* DIR_openAppend */
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static int DIR_remove(dvoid *opaque, const char *name)
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char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL);
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int retval;
BAIL_IF_MACRO(f == NULL, NULL, 0);
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retval = __PHYSFS_platformDelete(f);
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allocator.Free(f);
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return retval;
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} /* DIR_remove */
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static int DIR_mkdir(dvoid *opaque, const char *name)
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char *f = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL);
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int retval;
BAIL_IF_MACRO(f == NULL, NULL, 0);
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retval = __PHYSFS_platformMkDir(f);
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allocator.Free(f);
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return retval;
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} /* DIR_mkdir */
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static void DIR_dirClose(dvoid *opaque)
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allocator.Free(opaque);
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} /* DIR_dirClose */
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static int DIR_stat(dvoid *opaque, const char *name, int *exists,
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PHYSFS_Stat *stat)
{
char *d = __PHYSFS_platformCvtToDependent((char *) opaque, name, NULL);
int retval = 0;
BAIL_IF_MACRO(d == NULL, NULL, 0);
retval = __PHYSFS_platformStat(d, exists, stat);
allocator.Free(d);
return retval;
} /* DIR_stat */
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const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_DIR =
{
"",
DIR_ARCHIVE_DESCRIPTION,
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"Ryan C. Gordon <icculus@icculus.org>",
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"http://icculus.org/physfs/",
};
const PHYSFS_Archiver __PHYSFS_Archiver_DIR =
{
&__PHYSFS_ArchiveInfo_DIR,
DIR_openArchive, /* openArchive() method */
DIR_enumerateFiles, /* enumerateFiles() method */
DIR_exists, /* exists() method */
DIR_isDirectory, /* isDirectory() method */
DIR_isSymLink, /* isSymLink() method */
DIR_openRead, /* openRead() method */
DIR_openWrite, /* openWrite() method */
DIR_openAppend, /* openAppend() method */
DIR_remove, /* remove() method */
DIR_mkdir, /* mkdir() method */
DIR_dirClose, /* dirClose() method */
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DIR_stat /* stat() method */
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/* end of dir.c ... */