- add and use bb_opendir(), bb_xopendir().
   text    data     bss     dec     hex filename
 889445    9392 1035784 1934621  1d851d busybox.gcc-4.2.orig
 889297    9392 1035784 1934473  1d8489 busybox.gcc-4.2
 889009    9820 1037860 1936689  1d8d31 busybox.gcc-4.1.orig
 888817    9820 1037860 1936497  1d8c71 busybox.gcc-4.1
diff --git a/coreutils/diff.c b/coreutils/diff.c
index 2c89a66..12c61ca 100644
--- a/coreutils/diff.c
+++ b/coreutils/diff.c
@@ -1114,8 +1114,8 @@
 	else {
 		DIR *dp;
 		struct dirent *ep;
-		if ((dp = opendir(path)) == NULL)
-			bb_error_msg("Error reading directory");
+
+		dp = bb_opendir(path);
 		while ((ep = readdir(dp))) {
 			if ((!strcmp(ep->d_name, "..")) || (!strcmp(ep->d_name, ".")))
 				continue;