[patch] specialcase empty pathname in mkdirat

sandbox-2.5-mkdirat.patch (text/plain), 677 bytes, created by Marien Zwart (RETIRED) on 2012-05-12 14:54:42 UTC

=== modified file 'libsandbox/wrapper-funcs/mkdirat_pre_check.c'
--- libsandbox/wrapper-funcs/mkdirat_pre_check.c	2012-05-11 11:46:37 +0000
+++ libsandbox/wrapper-funcs/mkdirat_pre_check.c	2012-05-12 14:45:12 +0000
@@ -12,6 +12,15 @@
 
 	save_errno();
 
+	/* XXX: The findutils tests check for ENOENT if pathname is empty.
+	 * We need to specialcase this, as passing an existing directory
+	 * including trailing slash to mkdirat needs to fail with EEXIST.
+	 */
+	if (pathname && pathname[0] == '\0') {
+		errno = ENOENT;
+		return false;
+	}
+
 	/* Expand the dirfd path first */
 	switch (resolve_dirfd_path(dirfd, pathname, dirfd_path, sizeof(dirfd_path))) {
 		case -1: