+/*
+ * Returns the location of a path's file (the last element of the path).
+ * Returns the original path on error.
+ */
+static
+const char *get_filename_from_path(const char *path)
+{
+ size_t i = strlen(path);
+
+ if (i == 0) {
+ goto end;
+ }
+
+ if (path[i - 1] == '/') {
+ /*
+ * Path ends with a trailing slash, no filename to return.
+ * Return the original path.
+ */
+ goto end;
+ }
+
+ while (i-- > 0) {
+ if (path[i] == '/') {
+ path = &path[i + 1];
+ goto end;
+ }
+ }
+end:
+ return path;
+}
+