64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
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/* Copyright (C) 1992 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.com)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Unfortunately vendors seem to have problems writing a <signal.h>
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that is correct for C++, so we implement all signal handling in C. */
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#include <sys/types.h>
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#include <signal.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifndef RETSIGTYPE
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#define RETSIGTYPE void
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#endif
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extern void cleanup();
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static RETSIGTYPE handle_fatal_signal(signum)
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int signum;
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{
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signal(signum, SIG_DFL);
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cleanup();
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kill(getpid(), signum);
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}
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void catch_fatal_signals()
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{
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#ifdef SIGHUP
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signal(SIGHUP, handle_fatal_signal);
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#endif
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signal(SIGINT, handle_fatal_signal);
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signal(SIGTERM, handle_fatal_signal);
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}
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#ifndef HAVE_RENAME
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void ignore_fatal_signals()
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{
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#ifdef SIGHUP
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signal(SIGHUP, SIG_IGN);
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#endif
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signal(SIGINT, SIG_IGN);
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signal(SIGTERM, SIG_IGN);
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}
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#endif /* not HAVE_RENAME */
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