1 /* Copyright (C) 1992, 2001, 2003, 2004, 2009
2 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.com)
5 This file is part of groff.
7 groff is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* Unfortunately vendors seem to have problems writing a <signal.h>
21 that is correct for C++, so we implement all signal handling in C. */
29 #include <sys/types.h>
39 extern void cleanup(void);
41 static RETSIGTYPE handle_fatal_signal(int signum)
43 signal(signum, SIG_DFL);
46 kill(getpid(), signum);
48 /* MS-DOS and Win32 don't have kill(); the best compromise is
49 probably to use exit() instead. */
54 void catch_fatal_signals(void)
57 signal(SIGHUP, handle_fatal_signal);
59 signal(SIGINT, handle_fatal_signal);
60 signal(SIGTERM, handle_fatal_signal);
69 void ignore_fatal_signals()
72 signal(SIGHUP, SIG_IGN);
74 signal(SIGINT, SIG_IGN);
75 signal(SIGTERM, SIG_IGN);
78 #endif /* not HAVE_RENAME */