diff options
Diffstat (limited to 'contrib/groff/src/utils/indxbib/signal.c')
-rw-r--r-- | contrib/groff/src/utils/indxbib/signal.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/contrib/groff/src/utils/indxbib/signal.c b/contrib/groff/src/utils/indxbib/signal.c new file mode 100644 index 000000000000..8078472f95db --- /dev/null +++ b/contrib/groff/src/utils/indxbib/signal.c @@ -0,0 +1,63 @@ +/* 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 */ |