1 /* Copyright (C) 1992-2014 Free Software Foundation, Inc.
2 Written by James Clark (jjc@jclark.com)
4 This file is part of groff.
6 groff is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 groff is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 /* Unfortunately vendors seem to have problems writing a <signal.h>
20 that is correct for C++, so we implement all signal handling in C. */
28 #include <sys/types.h>
38 extern void cleanup(void);
40 static RETSIGTYPE handle_fatal_signal(int signum)
42 signal(signum, SIG_DFL);
45 kill(getpid(), signum);
47 /* MS-DOS and Win32 don't have kill(); the best compromise is
48 probably to use exit() instead. */
53 void catch_fatal_signals(void)
56 signal(SIGHUP, handle_fatal_signal);
58 signal(SIGINT, handle_fatal_signal);
59 signal(SIGTERM, handle_fatal_signal);
68 void ignore_fatal_signals()
71 signal(SIGHUP, SIG_IGN);
73 signal(SIGINT, SIG_IGN);
74 signal(SIGTERM, SIG_IGN);
77 #endif /* not HAVE_RENAME */