From 47b33c7d5284492e5679ccfabafe8c9738de8cb3 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 20 Jul 2017 14:17:30 +0200
Subject: [PATCH] string-util: optimize strshorten() a bit

There's no reason to determine the full length of the string, it's
sufficient to know whether it is larger than the intended size...
---
 src/basic/string-util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/basic/string-util.c b/src/basic/string-util.c
index 3287865863..5808b1280e 100644
--- a/src/basic/string-util.c
+++ b/src/basic/string-util.c
@@ -558,7 +558,7 @@ bool nulstr_contains(const char *nulstr, const char *needle) {
 char* strshorten(char *s, size_t l) {
         assert(s);
 
-        if (l < strlen(s))
+        if (strnlen(s, l+1) > l)
                 s[l] = 0;
 
         return s;