ntpd: do not create pid file if not backgrounded

function                                             old     new   delta
ntp_init                                             995    1021     +26
ntpd_main                                           1267    1257     -10
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/1 up/down: 26/-10)             Total: 16 bytes

Reported by Alfonso Ranieri <alforan@tin.it>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/networking/ntpd.c b/networking/ntpd.c
index b2e77929e..027cfe783 100644
--- a/networking/ntpd.c
+++ b/networking/ntpd.c
@@ -2585,6 +2585,10 @@ static NOINLINE void ntp_init(char **argv)
                 /* -l but no peers: "stratum 1 server" mode */
                 G.stratum = 1;
         }
+
+        if (!(opts & OPT_n)) /* only if backgrounded: */
+                write_pidfile_std_path_and_ext("ntpd");
+
         /* If network is up, syncronization occurs in ~10 seconds.
          * We give "ntpd -q" 10 seconds to get first reply,
          * then another 50 seconds to finish syncing.
@@ -2641,8 +2645,6 @@ int ntpd_main(int argc UNUSED_PARAM, char **argv)
          */
         cnt = G.peer_cnt * (INITIAL_SAMPLES + 1);
 
-        write_pidfile_std_path_and_ext("ntpd");
-
         while (!bb_got_signal) {
                 llist_t *item;
                 unsigned i, j;