sh/funcs/suspend

   1 #-
   2 # Copyright (c) 1991, 1993
   3 #       The Regents of the University of California.  All rights reserved.
   4 #
   5 # This code is derived from software contributed to Berkeley by
   6 # Kenneth Almquist.
   7 #
   8 # Redistribution and use in source and binary forms, with or without
   9 # modification, are permitted provided that the following conditions
  10 # are met:
  11 # 1. Redistributions of source code must retain the above copyright
  12 #    notice, this list of conditions and the following disclaimer.
  13 # 2. Redistributions in binary form must reproduce the above copyright
  14 #    notice, this list of conditions and the following disclaimer in the
  15 #    documentation and/or other materials provided with the distribution.
  16 # 4. Neither the name of the University nor the names of its contributors
  17 #    may be used to endorse or promote products derived from this software
  18 #    without specific prior written permission.
  19 #
  20 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30 # SUCH DAMAGE.
  31 #
  32 #       @(#)suspend     8.2 (Berkeley) 5/4/95
  33 # $FreeBSD$
  34
  35 suspend() {
  36         local -
  37         set +m
  38         kill -TSTP 0
  39 }