diff -r d1ea9b3f543e -r 13e2037ebc79 misc/physfs/src/archiver_dir.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/physfs/src/archiver_dir.c	Sat Oct 20 00:20:39 2012 +0400
@@ -0,0 +1,201 @@
+/*
+ * Standard directory I/O support routines for PhysicsFS.
+ *
+ * Please see the file LICENSE.txt in the source's root directory.
+ *
+ *  This file written by Ryan C. Gordon.
+ */
+
+#define __PHYSICSFS_INTERNAL__
+#include "physfs_internal.h"
+
+/* There's no PHYSFS_Io interface here. Use __PHYSFS_createNativeIo(). */
+
+
+
+static char *cvtToDependent(const char *prepend, const char *path, char *buf)
+{
+    BAIL_IF_MACRO(buf == NULL, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
+    sprintf(buf, "%s%s", prepend ? prepend : "", path);
+
+    if (__PHYSFS_platformDirSeparator != '/')
+    {
+        char *p;
+        for (p = strchr(buf, '/'); p != NULL; p = strchr(p + 1, '/'))
+            *p = __PHYSFS_platformDirSeparator;
+    } /* if */
+
+    return buf;
+} /* cvtToDependent */
+
+
+#define CVT_TO_DEPENDENT(buf, pre, dir) { \
+    const size_t len = ((pre) ? strlen((char *) pre) : 0) + strlen(dir) + 1; \
+    buf = cvtToDependent((char*)pre,dir,(char*)__PHYSFS_smallAlloc(len)); \
+}
+
+
+
+static void *DIR_openArchive(PHYSFS_Io *io, const char *name, int forWriting)
+{
+    PHYSFS_Stat st;
+    const char dirsep = __PHYSFS_platformDirSeparator;
+    char *retval = NULL;
+    const size_t namelen = strlen(name);
+    const size_t seplen = 1;
+    int exists = 0;
+
+    assert(io == NULL);  /* shouldn't create an Io for these. */
+    BAIL_IF_MACRO(!__PHYSFS_platformStat(name, &exists, &st), ERRPASS, NULL);
+    if (st.filetype != PHYSFS_FILETYPE_DIRECTORY)
+        BAIL_MACRO(PHYSFS_ERR_UNSUPPORTED, NULL);
+
+    retval = allocator.Malloc(namelen + seplen + 1);
+    BAIL_IF_MACRO(retval == NULL, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
+
+    strcpy(retval, name);
+
+    /* make sure there's a dir separator at the end of the string */
+    if (retval[namelen - 1] != dirsep)
+    {
+        retval[namelen] = dirsep;
+        retval[namelen + 1] = '\0';
+    } /* if */
+
+    return retval;
+} /* DIR_openArchive */
+
+
+static void DIR_enumerateFiles(PHYSFS_Dir *opaque, const char *dname,
+                               int omitSymLinks, PHYSFS_EnumFilesCallback cb,
+                               const char *origdir, void *callbackdata)
+{
+    char *d;
+
+    CVT_TO_DEPENDENT(d, opaque, dname);
+    if (d != NULL)
+    {
+        __PHYSFS_platformEnumerateFiles(d, omitSymLinks, cb,
+                                        origdir, callbackdata);
+        __PHYSFS_smallFree(d);
+    } /* if */
+} /* DIR_enumerateFiles */
+
+
+static PHYSFS_Io *doOpen(PHYSFS_Dir *opaque, const char *name,
+                         const int mode, int *fileExists)
+{
+    char *f;
+    PHYSFS_Io *io = NULL;
+    int existtmp = 0;
+
+    CVT_TO_DEPENDENT(f, opaque, name);
+    BAIL_IF_MACRO(!f, ERRPASS, NULL);
+
+    if (fileExists == NULL)
+        fileExists = &existtmp;
+
+    io = __PHYSFS_createNativeIo(f, mode);
+    if (io == NULL)
+    {
+        const PHYSFS_ErrorCode err = PHYSFS_getLastErrorCode();
+        PHYSFS_Stat statbuf;
+        __PHYSFS_platformStat(f, fileExists, &statbuf);
+        __PHYSFS_setError(err);
+    } /* if */
+    else
+    {
+        *fileExists = 1;
+    } /* else */
+
+    __PHYSFS_smallFree(f);
+
+    return io;
+} /* doOpen */
+
+
+static PHYSFS_Io *DIR_openRead(PHYSFS_Dir *opaque, const char *fnm, int *exist)
+{
+    return doOpen(opaque, fnm, 'r', exist);
+} /* DIR_openRead */
+
+
+static PHYSFS_Io *DIR_openWrite(PHYSFS_Dir *opaque, const char *filename)
+{
+    return doOpen(opaque, filename, 'w', NULL);
+} /* DIR_openWrite */
+
+
+static PHYSFS_Io *DIR_openAppend(PHYSFS_Dir *opaque, const char *filename)
+{
+    return doOpen(opaque, filename, 'a', NULL);
+} /* DIR_openAppend */
+
+
+static int DIR_remove(PHYSFS_Dir *opaque, const char *name)
+{
+    int retval;
+    char *f;
+
+    CVT_TO_DEPENDENT(f, opaque, name);
+    BAIL_IF_MACRO(!f, ERRPASS, 0);
+    retval = __PHYSFS_platformDelete(f);
+    __PHYSFS_smallFree(f);
+    return retval;
+} /* DIR_remove */
+
+
+static int DIR_mkdir(PHYSFS_Dir *opaque, const char *name)
+{
+    int retval;
+    char *f;
+
+    CVT_TO_DEPENDENT(f, opaque, name);
+    BAIL_IF_MACRO(!f, ERRPASS, 0);
+    retval = __PHYSFS_platformMkDir(f);
+    __PHYSFS_smallFree(f);
+    return retval;
+} /* DIR_mkdir */
+
+
+static void DIR_closeArchive(PHYSFS_Dir *opaque)
+{
+    allocator.Free(opaque);
+} /* DIR_closeArchive */
+
+
+static int DIR_stat(PHYSFS_Dir *opaque, const char *name,
+                    int *exists, PHYSFS_Stat *stat)
+{
+    int retval = 0;
+    char *d;
+
+    CVT_TO_DEPENDENT(d, opaque, name);
+    BAIL_IF_MACRO(!d, ERRPASS, 0);
+    retval = __PHYSFS_platformStat(d, exists, stat);
+    __PHYSFS_smallFree(d);
+    return retval;
+} /* DIR_stat */
+
+
+const PHYSFS_Archiver __PHYSFS_Archiver_DIR =
+{
+    {
+        "",
+        "Non-archive, direct filesystem I/O",
+        "Ryan C. Gordon <icculus@icculus.org>",
+        "http://icculus.org/physfs/",
+    },
+    DIR_openArchive,        /* openArchive() method    */
+    DIR_enumerateFiles,     /* enumerateFiles() method */
+    DIR_openRead,           /* openRead() method       */
+    DIR_openWrite,          /* openWrite() method      */
+    DIR_openAppend,         /* openAppend() method     */
+    DIR_remove,             /* remove() method         */
+    DIR_mkdir,              /* mkdir() method          */
+    DIR_closeArchive,       /* closeArchive() method   */
+    DIR_stat                /* stat() method           */
+};
+
+/* end of dir.c ... */
+