killpg(2) [bsd man page]

KILLPG(2)							System Calls Manual							 KILLPG(2)

NAME

       killpg - send signal to a process group

SYNOPSIS

       killpg(pgrp, sig)
       int pgrp, sig;

DESCRIPTION

       Killpg sends the signal sig to the process group pgrp.  See sigvec(2) for a list of signals.

       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

       Upon successful completion, a value of 0 is returned.  Otherwise, a value of -1 is returned and the global variable errno is set  to  indi-
       cate the error.

ERRORS

       Killpg will fail and no signal will be sent if any of the following occur:

       [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.

SEE ALSO

       kill(2), getpgrp(2), sigvec(2)

4th Berkeley Distribution					   May 14, 1986 							 KILLPG(2)

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

NAME

     killpg -- send signal to a process group

LIBRARY

     Standard C Library (libc, -lc)

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 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 with the same session ID as the caller.

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.

     [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.

     [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.

LEGACY SYNOPSIS

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

     The include file <sys/types.h> is necessary.

SEE ALSO

     getpgrp(2), kill(2), sigaction(2), compat(5)

HISTORY

     The killpg() function appeared in 4.0BSD.

BSD
								 October 10, 2006							       BSD