From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 20 Jul 2017 12:17:30 +0000 (+0200)
Subject: string-util: optimize strshorten() a bit
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=dd5771a663622a14e16971f2afb119fb91c6fade;p=elogind.git

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...
---

diff --git a/src/basic/string-util.c b/src/basic/string-util.c
index 4bfce5a5d..5172ac775 100644
--- a/src/basic/string-util.c
+++ b/src/basic/string-util.c
@@ -562,7 +562,7 @@ 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;