[Buildroot] [PATCH 1/1] ntp: added S48ntpdate script

[Matthew Weber <matthew.weber@rockwellcollins.com>]

Oscar,

On Mon, Oct 22, 2018 at 3:49 AM Matthew Weber
<matthew.weber@rockwellcollins.com> wrote:
>
> Oscar,
>
> On Mon, Oct 22, 2018 at 2:25 AM Oscar Gomez Fuente
> <oscargomezf@gmail.com> wrote:
> >
> > Hi Matthew,
> >
> >
> > Thank you very much for your help.
> >
> > I was checking If the script is working fine:
> > ----->
> > #! /bin/sh
> >
> > NAME=ntpd
> >
> > # Read config file if it is present.
> > if [ -r /etc/default/$NAME ]
> > then
> >         . /etc/default/$NAME
> > fi
> >
> > case "$1" in
> >         start)
> >                 printf "Starting $NAME: "
> >                 CURRENT_DATE=$(date | grep "1970")
> >                 if [ "$CURRENT_DATE" != "" ]; then
> >                         /usr/sbin/ntpd -q -x
> >                         [ $?  != 0 ] && echo -n "(No initial time set) - "
> >                 fi
> >                 start-stop-daemon -S -q -x /usr/sbin/ntpd -- -g
> >                 [ $? = 0 ] && echo "OK" || echo "FAIL"
> >                 ;;
> >         stop)
> >                 printf "Stopping $NAME: "
> >                 start-stop-daemon -K -q -n $NAME
> >                 [ $? = 0 ] && echo "OK" || echo "FAIL"
> >                 ;;
> >         restart|reload)
> >                 echo "Restarting $NAME: "
> >                 $0 stop
> >                 sleep 1
> >                 $0 start
> >                 ;;
> >         *)
> >                 echo "Usage: $0 {start|stop|restart|reload}" >&2
> >                 exit 1
> >                 ;;
> > esac
> >
> > exit 0
> > ----->
> >
> > But it seems to be that the command "/usr/sbin/ntpd -q -x" is not
> > working properly:
> >
> > # date --set "1970-01-10 10:10:00"
> > Sat Jan 10 10:10:00 UTC 1970
> > # /etc/init.d/S49ntp restart
> > Restarting ntpd:
> > Stopping ntpd: OK
> > Starting ntpd: 10 Jan 10:10:04 ntpd[1859]: ntpd 4.2.8p12 at 1.3728-o Thu
> > Oct 18 16:16:56 UTC 2018 (1): Starting
> > 10 Jan 10:10:04 ntpd[1859]: Command line: /usr/sbin/ntpd -q -x
> > 10 Jan 10:10:04 ntpd[1859]: proto: precision = 1.718 usec (-19)
> > 10 Jan 10:10:04 ntpd[1859]: Listen and drop on 0 v6wildcard [::]:123
> > 10 Jan 10:10:04 ntpd[1859]: Listen and drop on 1 v4wildcard 0.0.0.0:123
> > 10 Jan 10:10:04 ntpd[1859]: Listen normally on 2 lo 127.0.0.1:123
> > 10 Jan 10:10:04 ntpd[1859]: Listen normally on 3 eth0 192.168.20.226:123
> > 10 Jan 10:10:04 ntpd[1859]: Listen normally on 4 ppp0 172.21.39.120:123
> > 10 Jan 10:10:04 ntpd[1859]: Listen normally on 5 lo [::1]:123
> > 10 Jan 10:10:04 ntpd[1859]: Listen normally on 6 eth0
> > [xxxx::xxxx:xxxx:xxxx:xxxx%2]:123
> > 10 Jan 10:10:04 ntpd[1859]: Listening on routing socket on fd #23 for
> > interface updates
> > (No initial time set) - OK
> >
> > Notice that I checking the script forcing the date to 1970 with this
> > command. Does anyone any suggestion?
> >

If it's Ok with you, I'll send a v2 patch tonight and include your signed-off.

I fixed the args (should have been -g -q) and added a timeout loop to
manage the fact that unlike ntpdate, ntpd won't return if there is no
network connection or the server can't be reached.

Matt