killpg(3) [redhat man page]

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)

KILLPG(2)						     Linux Programmer's Manual							 KILLPG(2)

NAME

       killpg - send signal to a process group

SYNOPSIS

       #include <signal.h>

       int killpg(int pgrp, int sig);

DESCRIPTION

       Killpg  sends  the signal sig to the process group pgrp.  See sigaction(2) for a list of signals.  If pgrp is 0, killpg sends the signal to
       the sending process's process group.

       The sending process and members of the process group must have the same effective user ID, or the sender must be the super-user.  As a sin-
       gle special case the continue signal SIGCONT may be sent to any process that is a descendant of the current process.

RETURN VALUE

       On success, zero is returned.  On error, -1 is returned, and errno is set appropriately.

ERRORS

       EINVAL Sig is not a valid signal number.

       ESRCH  No process can be found in the process group specified by pgrp.

       ESRCH  The process group was given as 0 but the sending process does not have a process group.

       EPERM  The  sending  process  is not the super-user and one or more of the target processes has an effective user ID different from that of
	      the sending process.

CONFORMING TO

       SVr4, 4.4BSD (The killpg function call first appeared in 4.0BSD).

SEE ALSO

       kill(2), getpgrp(2), signal(2)

BSD Man Page							    1993-07-23								 KILLPG(2)