From 8f2906ba61d49e515ad6037613828bb38a235e81 Mon Sep 17 00:00:00 2001
From: David Lawrence Ramsey <pooka109@gmail.com>
Date: Fri, 14 Jan 2005 04:38:48 +0000
Subject: [PATCH] fix the multibyte equivalent of strnlen() so that it actually
 works

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2260 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
---
 src/chars.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/chars.c b/src/chars.c
index b97813b9..2977fd83 100644
--- a/src/chars.c
+++ b/src/chars.c
@@ -144,7 +144,7 @@ size_t nstrnlen(const char *s, size_t maxlen)
 size_t mbstrnlen(const char *s, size_t maxlen)
 {
 #ifdef NANO_WIDE
-    if (ISSET(NO_UTF8)) {
+    if (!ISSET(NO_UTF8)) {
 	size_t n = 0;
 	char *s_mb = charalloc(mb_cur_max());
 	int s_mb_len;
@@ -158,6 +158,9 @@ size_t mbstrnlen(const char *s, size_t maxlen)
 #endif
 		, NULL);
 
+	    if (s_mb_len > maxlen)
+		s_mb_len = maxlen;
+
 	    maxlen -= s_mb_len;
 	    n += s_mb_len;
 
-- 
2.39.5