1*ebfedea0SLionel Sambuc /* $NetBSD: signal.c,v 1.1.1.1 2011/04/13 18:15:43 elric Exp $ */
2*ebfedea0SLionel Sambuc
3*ebfedea0SLionel Sambuc /*
4*ebfedea0SLionel Sambuc * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
5*ebfedea0SLionel Sambuc * (Royal Institute of Technology, Stockholm, Sweden).
6*ebfedea0SLionel Sambuc * All rights reserved.
7*ebfedea0SLionel Sambuc *
8*ebfedea0SLionel Sambuc * Redistribution and use in source and binary forms, with or without
9*ebfedea0SLionel Sambuc * modification, are permitted provided that the following conditions
10*ebfedea0SLionel Sambuc * are met:
11*ebfedea0SLionel Sambuc *
12*ebfedea0SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
13*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer.
14*ebfedea0SLionel Sambuc *
15*ebfedea0SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
16*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
17*ebfedea0SLionel Sambuc * documentation and/or other materials provided with the distribution.
18*ebfedea0SLionel Sambuc *
19*ebfedea0SLionel Sambuc * 3. Neither the name of the Institute nor the names of its contributors
20*ebfedea0SLionel Sambuc * may be used to endorse or promote products derived from this software
21*ebfedea0SLionel Sambuc * without specific prior written permission.
22*ebfedea0SLionel Sambuc *
23*ebfedea0SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24*ebfedea0SLionel Sambuc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25*ebfedea0SLionel Sambuc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26*ebfedea0SLionel Sambuc * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27*ebfedea0SLionel Sambuc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28*ebfedea0SLionel Sambuc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29*ebfedea0SLionel Sambuc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30*ebfedea0SLionel Sambuc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31*ebfedea0SLionel Sambuc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32*ebfedea0SLionel Sambuc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33*ebfedea0SLionel Sambuc * SUCH DAMAGE.
34*ebfedea0SLionel Sambuc */
35*ebfedea0SLionel Sambuc
36*ebfedea0SLionel Sambuc #include <config.h>
37*ebfedea0SLionel Sambuc
38*ebfedea0SLionel Sambuc #include <signal.h>
39*ebfedea0SLionel Sambuc #include <krb5/roken.h>
40*ebfedea0SLionel Sambuc
41*ebfedea0SLionel Sambuc /*
42*ebfedea0SLionel Sambuc * We would like to always use this signal but there is a link error
43*ebfedea0SLionel Sambuc * on NEXTSTEP
44*ebfedea0SLionel Sambuc */
45*ebfedea0SLionel Sambuc #if !defined(NeXT) && !defined(__APPLE__)
46*ebfedea0SLionel Sambuc /*
47*ebfedea0SLionel Sambuc * Bugs:
48*ebfedea0SLionel Sambuc *
49*ebfedea0SLionel Sambuc * Do we need any extra hacks for SIGCLD and/or SIGCHLD?
50*ebfedea0SLionel Sambuc */
51*ebfedea0SLionel Sambuc
52*ebfedea0SLionel Sambuc ROKEN_LIB_FUNCTION SigAction ROKEN_LIB_CALL
signal(int iSig,SigAction pAction)53*ebfedea0SLionel Sambuc signal(int iSig, SigAction pAction)
54*ebfedea0SLionel Sambuc {
55*ebfedea0SLionel Sambuc struct sigaction saNew, saOld;
56*ebfedea0SLionel Sambuc
57*ebfedea0SLionel Sambuc saNew.sa_handler = pAction;
58*ebfedea0SLionel Sambuc sigemptyset(&saNew.sa_mask);
59*ebfedea0SLionel Sambuc saNew.sa_flags = 0;
60*ebfedea0SLionel Sambuc
61*ebfedea0SLionel Sambuc if (iSig == SIGALRM)
62*ebfedea0SLionel Sambuc {
63*ebfedea0SLionel Sambuc #ifdef SA_INTERRUPT
64*ebfedea0SLionel Sambuc saNew.sa_flags |= SA_INTERRUPT;
65*ebfedea0SLionel Sambuc #endif
66*ebfedea0SLionel Sambuc }
67*ebfedea0SLionel Sambuc else
68*ebfedea0SLionel Sambuc {
69*ebfedea0SLionel Sambuc #ifdef SA_RESTART
70*ebfedea0SLionel Sambuc saNew.sa_flags |= SA_RESTART;
71*ebfedea0SLionel Sambuc #endif
72*ebfedea0SLionel Sambuc }
73*ebfedea0SLionel Sambuc
74*ebfedea0SLionel Sambuc if (sigaction(iSig, &saNew, &saOld) < 0)
75*ebfedea0SLionel Sambuc return(SIG_ERR);
76*ebfedea0SLionel Sambuc
77*ebfedea0SLionel Sambuc return(saOld.sa_handler);
78*ebfedea0SLionel Sambuc }
79*ebfedea0SLionel Sambuc #endif
80