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KILLPG(2)		  FreeBSD 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 and members of	the process group must have the	same
     effective user ID,	or the sender must be the super-user.  As a single
     special case the continue signal SIGCONT may be sent to any process that
     is	a descendant of	the current process.

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.

     [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.

SEE ALSO
     getpgrp(2), kill(2), sigaction(2)

HISTORY
     The killpg() function appeared in 4.0BSD.

FreeBSD	10.1			 June 2, 1993			  FreeBSD 10.1

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | HISTORY

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