.\" Copyright (c) 1983 Regents of the University of California.
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\" @(#)sigblock.2 6.1 (Berkeley) %G%
sigblock \- block signals
causes the signals specified in
to be added to the set of signals currently
being blocked from delivery. Signal
It is not possible to block SIGKILL,
SIGSTOP, or SIGCONT; this restriction is silently
The previous set of masked signals is returned.
kill(2), sigvec(2), sigsetmask(2),