/* $NetBSD: signal.c,v 1.2 2017/01/28 21:31:50 christos Exp $ */ /* * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan * (Royal Institute of Technology, Stockholm, Sweden). * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Institute nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <config.h> #include <signal.h> #include <krb5/roken.h> /* * We would like to always use this signal but there is a link error * on NEXTSTEP */ #if !defined(NeXT) && !defined(__APPLE__) /* * Bugs: * * Do we need any extra hacks for SIGCLD and/or SIGCHLD? */ ROKEN_LIB_FUNCTION SigAction ROKEN_LIB_CALL signal(int iSig, SigAction pAction) { struct sigaction saNew, saOld; saNew.sa_handler = pAction; sigemptyset(&saNew.sa_mask); saNew.sa_flags = 0; if (iSig == SIGALRM) { #ifdef SA_INTERRUPT saNew.sa_flags |= SA_INTERRUPT; #endif } else { #ifdef SA_RESTART saNew.sa_flags |= SA_RESTART; #endif } if (sigaction(iSig, &saNew, &saOld) < 0) return(SIG_ERR); return(saOld.sa_handler); } #endif |