From 079549cbd2663fb08d8ad265069d72c45e399c4b Mon Sep 17 00:00:00 2001
From: Themaister <maister@archlinux.us>
Date: Mon, 11 Apr 2011 21:28:03 +0200
Subject: [PATCH] Fix an edge case with strlcat().

---
 strl.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/strl.c b/strl.c
index 13600bda40..25e7fd2fb7 100644
--- a/strl.c
+++ b/strl.c
@@ -41,7 +41,12 @@ size_t strlcat(char *dest, const char *source, size_t size)
 {
    size_t len = strlen(dest);
    dest += len;
-   size -= len;
+
+   if (len > size)
+      size = 0;
+   else
+      size -= len;
+
    return len + strlcpy(dest, source, size);
 }
 #endif