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