paranoia when stripping trailing slashes from tempdir.

diff --git a/sudo_edit.c b/sudo_edit.c
index 3d8d94089d3d2b1f38dc389a0bc305da971a294a..d5e71ad88a651d71a70422f39b1aff012b55e384 100644 (file)
--- a/sudo_edit.c
+++ b/sudo_edit.c
@@ -91,7 +91,7 @@ int sudo_edit(argc, argv)
     else
        tmpdir = _PATH_TMP;
     tmplen = strlen(tmpdir);
-    while (tmpdir[tmplen - 1] == '/')
+    while (tmplen > 0 && tmpdir[tmplen - 1] == '/')
        tmplen--;
 
     /*