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OpenSolaris 2009.06 - man page for killpg (opensolaris section 3c)

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)

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