[BusyBox] ifup, ifdown applets

[Steven Scholz]

Glenn McGrath wrote:
> 
> On Mon, 18 Nov 2002 12:13:00 +0100
> Steven Scholz <steven.scholz at imc-berlin.de> wrote:
> 
> > Glenn McGrath wrote:
> > >
> > > Ive just commited those applets based on the debian ifupdown package.
> >
> > On my machine an "ifdown -f -v eth0" results in
> >
> > ifdown: Configuring interface eth0=eth0 (inet)
> > ifdown: cat /var/run/udhcpc.eth0.pid | xargs -i kill -TERM {}
> 
> I just changed it to "cat /var/run/udhcpc.eth0.pid | xargs kill" as is
> done in a patch for bering linux's ifupdown
> 
> If you could give it a try and check that it fixes that particular problem
> i would appreciate it.

Well,

I tried but udhcpc is not very impressed by the kill! :o) 
For some reason I need "kill -9" to kill the udhcpc. However according to the
udhcpc sources it catches SIGTERM and does a exit_client(0)...

"cat /var/run/udhcpc.eth0.pid | xargs kill -9" does not work! I suppose due to a
problem (bug?) in xargs!

~ # cat /var/run/udhcpc.eth0.pid | xargs kill -s SIGTERM
xargs: invalid option -- s
BusyBox v0.61.pre (2002.11.18-13:00+0000) multi-call binary

Usage: xargs [COMMAND] [-prt] [ARGS...]

Executes COMMAND on every item given by standard input.

Options:
        -p      Prompt the user about whether to run each command
        -r      Do not run command for empty readed lines
        -t      Print the command line on stderr before executing it.

~ # 

However, do we need pid files!?!? 
Can't we just use pidof ???

Steven