__fortify_realpath() should trap if PATH_MAX is not defined

This is currently done only if the pointer is non-NULL.
2015-02-28 15:59:27 +00:00 · 2015-02-28 15:59:27 +00:00 · 4672406edd
parent 5ebf0ca70e
commit 4672406edd
1 changed files with 4 additions and 0 deletions
--- a/include/stdlib.h
+++ b/include/stdlib.h
@ -19,9 +19,13 @@ __fortify_realpath(const char *path, char *resolved)
 	size_t bos;

 	if (resolved) {
+#ifndef PATH_MAX
+		__builtin_trap();
+#else
 		bos = __builtin_object_size(resolved, 0);
 		if (PATH_MAX > bos)
 			__builtin_trap();
+#endif
 	}
 	return realpath(path, resolved);
 }