+ int rc;
+ char *ptr;
+ char *prevptr;
+
+ ptr = prevptr = buf;
+ while (ptr = strchr(ptr + 1, '/'))
+ {
+ *ptr = '\0'; /* block this path section off */
+ rc = locateOneElement(buf);
+ if (!rc)
+ {
+ if (makedirs) /* normal if we're writing; build dirs! */
+ mkdir(buf, S_IRWXU);
+ else
+ {
+ *ptr = '/'; /* restore path separator */
+ return(-2); /* missing element in path. */
+ } /* else */
+ } /* if */
+ *ptr = '/'; /* restore path separator */
+ } /* while */
+
+ /* check final element... */
+ return(locateOneElement(buf) ? 0 : -1);
+}
+
+
+static int locateCorrectFile(char *buf, const char *mode)
+{
+ if (*buf == '\0')
+ return(0); /* Uh...I guess that's failure. */
+
+ assert((mode[0] == 'w') || (mode[0] == 'r'));
+
+ bool iswriting = (mode[0] == 'w');
+ const char *prefpath = getPrefPath();
+ size_t len = strlen(buf) + strlen(prefpath) + 2;
+ char *prefpathfile = (char *) alloca(len);
+ snprintf(prefpathfile, len, "%s/%s", prefpath, buf);
+
+ int rc = locateCorrectCase(prefpathfile, iswriting); /* favor prefpath. */
+ if ( (rc == 0) || ((rc == -1) && (iswriting)) ) // found or create?
+ strcpy(buf, prefpathfile);
+ else if ((rc < 0) && (!iswriting)) /* not writing? Try game dir... */
+ rc = locateCorrectCase(buf, iswriting);
+
+ return(rc);
+} /* locateCorrectFile */
+#endif
+
+
+static char g_filename[4096];
+char* ConvertFileName( const char* orgfilename, const char *mode)
+{
+ if (orgfilename == g_filename) // recursion?
+ return g_filename;
+