su.c: fix missing length argument to snprintf

diff --git a/src/su.c b/src/su.c
index 0c50a9456afd821b258ce7de8cd5ef5ab5a8b3a9..93ffd2fbe2b4e3bffcdc6c42a280bd956b2b39f4 100644 (file)
--- a/src/su.c
+++ b/src/su.c
@@ -373,8 +373,8 @@ static void prepare_pam_close_session (void)
                              stderr);
                (void) kill (-pid_child, caught);
 
-               snprintf (kill_msg, _(" ...killed.\n"));
-               snprintf (wait_msg, _(" ...waiting for child to terminate.\n"));
+               snprintf (kill_msg, 256, _(" ...killed.\n"));
+               snprintf (wait_msg, 256, _(" ...waiting for child to terminate.\n"));
 
                (void) signal (SIGALRM, kill_child);
                (void) alarm (2);