NAME
	  kill - Sends a signal	to a process or	to a group of
	  processes

     SYNOPSIS
	  #include <sys/types.h>
	  #include <signal.h>
	  int kill(
	       pid_t process,
	       int signal );


     PARAMETERS
	  process   Specifies the process or group of processes.

	  signal    Specifies the signal. If the signal	parameter is a
		    value of 0 (the null signal), error	checking is
		    performed but no signal is sent. This can be used
		    to check the validity of the process parameter.


     DESCRIPTION
	  The kill() function sends the	signal specified by the	signal
	  parameter to the process or group of processes specified by
	  the process parameter.

	  To send a signal to another process, at least	one of the
	  following must be true:


	    o  The real	or the effective user ID of the	sending	pro-
	       cess matches the	real or	effective user ID of the
	       receiving process.

	    o  The process is trying to	send the SIGCONT signal	to one
	       of its session's	processes.

	    o  The calling process has superuser privilege.


	  Processes can	send signals to	themselves.

     NOTES
	  Sending a signal does	not imply that the operation is	suc-
	  cessful. All signal operations must pass the access checks
	  prescribed by	each enforced access control policy on the
	  system.

	  If the process parameter is greater than 0 (zero), the sig-
	  nal specified	by the signal parameter	is sent	to the process
	  that has a process ID	equal to the value of the process
	  parameter.
	  If the process parameter is equal to 0 (zero), the signal
	  specified by the signal parameter is sent to all of the
	  processes (other than	system processes) whose	process	group
	  ID is	equal to the process group ID of the sender.

	  If the process parameter is equal to -1 and the effective
	  user ID of the sender	has root privileges, the signal	speci-
	  fied by the signal parameter is sent to all of the processes
	  other	than system processes.

	  If the process parameter is negative but not -1, the signal
	  specified by the signal parameter is sent to all of the
	  processes which have a process group ID equal	to the abso-
	  lute value of	the process parameter.

	  AES Support Level:
			 Full use


     RETURN VALUES
	  Upon successful completion, the kill() function returns a
	  value	of 0 (zero). Otherwise,	a value	of -1 is returned and
	  errno	is set to indicate the error.

     ERRORS
	  If the kill()	function fails,	no signal is sent and errno
	  may be set to	one of the following values:


	  [EINVAL]  The	signal parameter is not	a valid	signal number.

	  [EINVAL]  The	signal parameter is SIGKILL, SIGSTOP, SIGTSTP
		    or SIGCONT and the process parameter is 1 (proc1).

	  [ESRCH]   No process can be found corresponding to that
		    specified by the process parameter.

	  [EPERM]   The	real or	saved user ID does not match the real
		    or effective user ID of the	receiving process, the
		    calling process does not have appropriate
		    privilege, and the process is not sending a
		    SIGCONT signal to one of its session's processes.

	  [EACCES]  The	calling	process	does not have appropriate
		    privilege.


     RELATED INFORMATION
	  Functions: getpid(2),	killpg(2), setpgid(2), sigaction(2),
	  sigvec(2)