1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" from: @(#)sigpause.2 8.1 (Berkeley) 6/2/93 29.\" $NetBSD: sigpause.3,v 1.15 2003/08/07 16:42:40 agc Exp $ 30.\" 31.Dd June 2, 1993 32.Dt SIGPAUSE 3 33.Os 34.Sh NAME 35.Nm sigpause 36.Nd atomically release blocked signals and wait for interrupt 37.Sh LIBRARY 38.Lb libc 39.Sh SYNOPSIS 40.In signal.h 41.Ft int 42.Fn sigpause "int sigmask" 43.Sh DESCRIPTION 44.Bf -symbolic 45This interface is made obsolete by 46.Xr sigsuspend 2 . 47.Ef 48.Pp 49.Fn sigpause 50assigns 51.Fa sigmask 52to the set of masked signals 53and then waits for a signal to arrive; 54on return the set of masked signals is restored. 55.Fa sigmask 56is usually 0 to indicate that no 57signals are to be blocked. 58.Fn sigpause 59always terminates by being interrupted, returning -1 with 60.Va errno 61set to 62.Dv EINTR . 63.Sh SEE ALSO 64.Xr kill 2 , 65.Xr sigaction 2 , 66.Xr sigprocmask 2 , 67.Xr sigsuspend 2 , 68.Xr sigblock 3 , 69.Xr sigvec 3 70.Sh HISTORY 71The 72.Fn sigpause 73function call appeared in 74.Bx 4.2 75and has been deprecated. 76