KILLPG(2)						      BSD System Calls Manual							 KILLPG(2)

NAME

     killpg -- send signal to a process group

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/types.h>
     #include <signal.h>

     int
     killpg(pid_t pgrp, int sig);

DESCRIPTION

     The killpg() function 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 must be able to kill() at least one process in the receiving process group.

RETURN VALUES

     The killpg() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable 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.

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

     [EPERM]		kill() returns EPERM for all processes in the process group.

SEE ALSO

     getpgrp(2), kill(2), sigaction(2)

HISTORY

     The killpg() function appeared in 4.0BSD.

BSD
								  March 15, 2012							       BSD