Need help with rc.d script

[Ernie Luzar]

Ian Smith wrote:
> On Tue, 7 Nov 2017 13:11:36 -0500, Ernie Luzar wrote:
> 
>  > Thanks Ian,
>  > Ending the while loop with "done &" worked.
> 
> The one with or without the enclosing ( and ) to force a subshell?
> 
>  > When I issue dynip from the command line it runs as a daemon but I have to
>  > use the kill command to stop it.
>  > 
>  > This is my rc.d script for dynip script. issuing "service dynip start" works
>  > but "service dynip stop" gives message saying
>  > dynip not running? (Check /var/run/dynip.pid). Well ps ax shows it is running
>  > and I have to use the kill command to stop it.
> 
> Things to check:
> 
>  . after 'start' does /var/run/dynip.pid exist while it's running??
>  . if so, does it contain the same PID as 'ps ax' shows for dynip?
>  . does 'ps ax' show a different PID for the subshell, if there is one?
>  . Does /var/run/dynip.pid still exist after running 'stop'?
> 
> i.e. is the PID needed for kill the same as that in /var/run/dynip.pid?
> 
>  > Here is my rc.d script. What am I missing to populate the dynip.pid file so
>  > "service dynip stop" command will work?
>  >
>  > #!/bin/sh
>  > #
>  > #
>  > # PROVIDE: dynip
>  > # REQUIRE: LOGIN
>  > # KEYWORD: nojail shutdown
>  > #
>  > # Add the following line to /etc/rc.conf to enable dynip:
>  > #
>  > # dynip_enable="YES"
>  > #
>  > 
>  > . /etc/rc.subr
>  > name="dynip"
>  > rcvar=dynip_enable
>  > command="/usr/local/sbin/${name}"
>  > pidfile="/var/run/${name}.pid"
>  > load_rc_config ${name}
>  > run_rc_command "$1"
> 
> I've very little knowledge of the detailed behaviour of the rc system.  
> Let's see how the above questions might inform before speculating ..
> 
> cheers, Ian
> 

I tested with and without the enclosing ( and ) on the while loop and it 
made no difference. No pidfile exists before the "service dynip start" 
is issued and non exists afterwards.