From 1fb8ec4b0d871f44eeb025b2ea2a1fbfa961234b Mon Sep 17 00:00:00 2001
From: Wayne Davison <wayned@samba.org>
Date: Tue, 20 Jan 2004 00:29:49 +0000
Subject: [PATCH] Fixed a bug in strlcat() where it would not properly detect a
 no-change condition if called with an initial string longer than the
 specified size limit (due to an unsigned var's inability to go negative).

---
 lib/compat.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/compat.c b/lib/compat.c
index a783a01c..6dd2328a 100644
--- a/lib/compat.c
+++ b/lib/compat.c
@@ -138,10 +138,9 @@
 	size_t len2 = strlen(s);
 	size_t ret = len1 + len2;
 
-	if (len1+len2 >= bufsize) {
-		len2 = bufsize - (len1+1);
-	}
-	if (len2 > 0) {
+	if (len1 < bufsize - 1) {
+		if (len2 >= bufsize - len1)
+			len2 = bufsize - len1 - 1;
 		memcpy(d+len1, s, len2);
 		d[len1+len2] = 0;
 	}
-- 
2.34.1