From 1eb303e6d401c1ef2992933532eb2d7eab36cecf Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicm@openbsd.org>
Date: Sun, 23 Aug 2009 11:40:05 +0000
Subject: [PATCH] Check the return value of strunvis against -1 not NULL.

---
 tty-term.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tty-term.c b/tty-term.c
index 50b2520a..dd3e8e00 100644
--- a/tty-term.c
+++ b/tty-term.c
@@ -173,7 +173,7 @@ tty_term_override(struct tty_term *term, const char *overrides)
  			if ((ptr = strchr(entstr, '=')) != NULL) {
 				*ptr++ = '\0';
 				val = xstrdup(ptr);
-				if (strunvis(val, ptr) == NULL) {
+				if (strunvis(val, ptr) == -1) {
 					xfree(val);
 					val = xstrdup(ptr);
 				}