[C] SIGINT + SIGTERM to parent and children

'sup guys?

I have a parent process that at some point forks into at least one child process.
I want to kill everything (parent+children) if the parent or any of its child processes get a SIGINT or SIGTERM.

How can I do this?

I know I have to use stuff from signal.h and probably a mutex(not sure on this?) to flag when it's time to die.

I would appreciate if you guys could help me.

Thank you.

Anon.

set up a signal handler which catches SIGINT and SIGTERM and then uses killpg(0, SIGKILL);.

something like:
void handler(int signal)
{
   killpg(0, SIGKILL);
}
i haven't tested it, but i'm pretty sure it'll work.

Suck on my cheesy noise badger

>>2
Do I have to set the handler in the begging of the parents' main and then in the begging of the child (right after the fork made in the parent)?

Much thankful for the assistance!

>>4
should be inherited by the children if you set it before the fork()'s

>>5
Many thank's!

OP here.

Something like:

void rip () {
 killpg(0, SIGKILL);
}

int main (void)
{
  signal (SIGTERM, handler);
  signal (SIGINT, handler);

?

>>7
i think you've got the name of the handler a little mixed up.

void rip() {
 killpg(0, SIGKILL);
}

int main()
{
  signal(SIGTERM, rip);
  signal(SIGINT, rip);
  //fork and whatever
}

void rip()
{
 killpg(0, SIGKILL);
}

int main()
{
  signal(SIGTERM, rip);
  signal(SIGINT, rip);
  //fork and whatever
}

OP here.

Yeah, I know I mixed up the names.
RIP makes more sense. :) Let me test this in a bit.

fork() my anus

>>11
I don't fork, however I like spooning with my hot japanese girlfriendo.

>>12
spooning leads to forking¹

1. Seen on some pyjamas for sale at London's Carnaby Street.

>>12
Spooning to life sized pillows of the Morning Musume cast is not having a hot Japanese girlfriend

>>12
you can do both with spork()

>>15
xD

jesus christ just negate your signal and it goes to the damn group.

even on the text boards, no one knows how to read.