Re: [DNG] How to test the backend of simple-netaid
Hi KatolaZ,
On 19/3/19 11:13, KatolaZ wrote:
On Tue, Mar 19, 2019 at 11:00:59AM +0100, aitor_czr wrote:
[cut]
I answer myself, referring to the use of pkill wpa_supplicant:
#include
int kill_wpa_supplicant(void)
{
pid_t wpa_pid;
FILE *fp;
fp = (fopen("/var/run/wpa_supplicant.pid", "r"));
if (fp == NULL) {
printf("Couldn't read Wpasupplicant pid file, not trying to kill.");
return 0;
aitor, please notice that the pid file for wpa_supplicant can be
literally*anywhere*. At the moment, in Devuan Beowulf, it is stored
in the folder/var/run/wpa_supplicant/. But this is just very
unreliable, IMHO. Please also consider that `wpa_supplicant(8)` has an
option "-P" that allows to specify the path to pidfile...
My2Cents
KatolaZ
The following code does the job:
#include
#include
#include
#include
int main()
{
char *pid, output[1024];
FILE *fp = popen ( "pidof wpa_supplicant", "r" );
fgets ( output, 1024, fp );
fclose ( fp );
pid = strtok ( output, " " );
while( pid )
{
pid_t wpa_pid=atoi ( pid );
if ( ( kill ( wpa_pid, SIGTERM ) ) == 0) return 0;
else {
kill ( wpa_pid, SIGKILL ); // Still alive? Die!
return 0;
}
pid = strtok ( NULL , " " );
}
}
Analogous to the following bash script, used in the "kill-all-dhcp" of
netcfg (but extended to all the dhcp clients):
#!/bin/sh
# Killall for dhcp clients.
for client in dhclient udhcpc pump dhcp6c; do
pid=$(pidof $client) || true
[ "$pid" ] || continue
echo $pid
if kill -0 $pid 2>/dev/null; then
kill -TERM $pid
sleep 1
# Still alive? Die!
if kill -0 $pid 2>/dev/null; then
kill -KILL $pid
fi
fi
done
Cheers,
Aitor.
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Re: [DNG] How to test the backend of simple-netaid
Il 20/03/19 09:16, Dr. Nikolaus Klepp ha scritto:
> Anno domini 2019 Tue, 19 Mar 23:55:36 +0100
> KatolaZ scripsit:
>> On Tue, Mar 19, 2019 at 11:41:16PM +0100, aitor_czr wrote:
>>
>> [cut]
>>
>>> fsmithred wrote the following command in d1g time ago:
>>>
>>> |kill $(ps -e |grep wpa |grep -oP '\d{3,}')
>>> https://dev1galaxy.org/viewtopic.php?id=2158 Aitor. |
>>>
>>
>> Maybe something like:
>>
>> $ kill -9 $(pidof wpa_supplicant)
>>
>> is easier to use ;) pidof(8) is still there.
>>
>> My2Cents
>>
>> KatolaZ
>>
> killall -9 wpa_supplicant
>
> ;-)
THOU SHALL NOT KILL -9!
https://unix.stackexchange.com/questions/28572/when-you-try-to-terminate-a-process-for-good-which-option-for-kill-should-you#28578
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Re: [DNG] How to test the backend of simple-netaid
On Wednesday, 20th of March at 10:22, KatolaZ wrote: On Wed, Mar 20, 2019 at 09:16:17AM +0100, Dr. Nikolaus Klepp wrote: [cut] > > > Maybe something like: > > $ kill -9 $(pidof wpa_supplicant) > > is easier to use ;) pidof(8) is still there. > > My2Cents > > KatolaZ > killall -9 wpa_supplicant ;-) Sure. The main difference is that killall is in psmisc, which is "Priority: optional", while pidof is in sysvinit-utils, which is "Priority: required" in Devuan ;) HND KatolaZ I mostly just use "pkill" (from the procps package). It seems there are many tools to kill unwanted processes... :^) - Antoine -- Two things are infinite: the universe and human stupidity. ...though we're not entirely sure about the universe. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] How to test the backend of simple-netaid
On Wed, Mar 20, 2019 at 09:16:17AM +0100, Dr. Nikolaus Klepp wrote: [cut] > > > > > > Maybe something like: > > > > $ kill -9 $(pidof wpa_supplicant) > > > > is easier to use ;) pidof(8) is still there. > > > > My2Cents > > > > KatolaZ > > > > killall -9 wpa_supplicant > > ;-) Sure. The main difference is that killall is in psmisc, which is "Priority: optional", while pidof is in sysvinit-utils, which is "Priority: required" in Devuan ;) HND KatolaZ -- [ ~.,_ Enzo Nicosia aka KatolaZ - Devuan -- Freaknet Medialab ] [ "+. katolaz [at] freaknet.org --- katolaz [at] yahoo.it ] [ @) http://kalos.mine.nu --- Devuan GNU + Linux User ] [ @@) http://maths.qmul.ac.uk/~vnicosia -- GPG: 0B5F062F ] [ (@@@) Twitter: @KatolaZ - skype: katolaz -- github: KatolaZ ] signature.asc Description: PGP signature ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] How to test the backend of simple-netaid
Anno domini 2019 Tue, 19 Mar 23:55:36 +0100
KatolaZ scripsit:
> On Tue, Mar 19, 2019 at 11:41:16PM +0100, aitor_czr wrote:
>
> [cut]
>
> >
> > fsmithred wrote the following command in d1g time ago:
> >
> > |kill $(ps -e |grep wpa |grep -oP '\d{3,}')
> > https://dev1galaxy.org/viewtopic.php?id=2158 Aitor. |
> >
>
>
> Maybe something like:
>
> $ kill -9 $(pidof wpa_supplicant)
>
> is easier to use ;) pidof(8) is still there.
>
> My2Cents
>
> KatolaZ
>
killall -9 wpa_supplicant
;-)
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