killpg(3C)						   Standard C Library Functions 						killpg(3C)

NAME

       killpg - send signal to a process group

SYNOPSIS

       #include <signal.h>

       int killpg(pid_t pgrp, int sig);

DESCRIPTION

       The killpg() function sends the signal sig to the process group pgrp. See signal.h(3HEAD) for a list of signals.

       The  real  or effective user ID of the sending process must match the real or saved set-user ID of the receiving process, unless the effec-
       tive user ID of the sending process is the privileged user. A single exception is the signal SIGCONT, which  may  always  be  sent  to  any
       descendant of the current process.

RETURN VALUES

       Upon successful completion, 0 is returned. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       The killpg() function will fail and no signal will be sent if:

       EINVAL	 The sig argument is not a valid signal number.

       EPERM	 The  effective user ID of the sending process is not privileged user, and neither its real nor effective user ID matches the real
		 or saved set-user ID of one or more of the target processes.

       ESRCH	 No processes were found in the specified process group.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       kill(2), setpgrp(2), sigaction(2), signal.h(3HEAD), attributes(5), standards(5)

SunOS 5.11							    24 Jul 2002 							killpg(3C)