redhat man page for killpg

KILLPG(3)						     Linux Programmer's Manual							 KILLPG(3)

NAME
       killpg - send signal to all members of a process group.

SYNOPSIS
       #include <signal.h>

       int killpg(pid_t pidgrp, int signal);

DESCRIPTION
       The  killpg()  function	causes	signal signal to be sent to all the processes in the process group pidgrp or to the processes' own process
       group if pidgrp is equal to zero.

       It is equivalent to

       kill(-pidgrp,signal);

RETURN VALUE
       The value returned is -1 on error, or 0 for success.

ERRORS
       Errors are returned in errno and can be one of the following:

       EINVAL for an invalid signal,

       ESRCH  for a process group which does not exist, and

       EPERM  if the userid of the calling process is not equal to that of the process the signal is sent to, and the userid is not  that  of  the
	      superuser.

CONFORMING TO
       ???

SEE ALSO
       kill(2), signal(2), signal(7)

GNU
								    1993-04-04								 KILLPG(3)