logind: use memdup_suffix0() where appropiate

memdup_suffix0() is the call of choice when we are dealing with an input
that might not be NUL terminated. strndup() assumes NUL termination.

diff --git a/src/login/logind-utmp.c b/src/login/logind-utmp.c
index 8305ae743fa83f0ab578c1a02e55ce887d6b91cc..8f6914f7250cbc7628315be1b06827bed237dcde 100644 (file)
--- a/src/login/logind-utmp.c
+++ b/src/login/logind-utmp.c
@@ -43,7 +43,7 @@ int manager_read_utmp(Manager *m) {
                 if (!pid_is_valid(u->ut_pid))
                         continue;
 
-                t = strndup(u->ut_line, sizeof(u->ut_line));
+                t = memdup_suffix0(u->ut_line, sizeof(u->ut_line));
                 if (!t)
                         return log_oom();