47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/* signals.c - abstracts signal handling
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(C) 2004 Nicholas J. Kain <njk@aerifal.cx>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include <unistd.h>
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#include <signal.h>
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#include <stdlib.h>
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#include "log.h"
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void hook_signal(int signum, void (*fn)(int), int flags) {
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struct sigaction new_action;
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new_action.sa_handler = fn;
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sigemptyset(&new_action.sa_mask);
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new_action.sa_flags = flags;
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if (sigaction(signum, &new_action, NULL)) {
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log_line("FATAL - failed to hook signal %i\n", signum);
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exit(EXIT_FAILURE);
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}
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}
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void disable_signal(int signum) {
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struct sigaction new_action;
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new_action.sa_handler = SIG_IGN;
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sigemptyset(&new_action.sa_mask);
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if (sigaction(signum, &new_action, NULL)) {
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log_line("FATAL - failed to ignore signal %i\n", signum);
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exit(EXIT_FAILURE);
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}
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}
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