102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/*
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* Copyright (c) 2016-2024 OARC, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "sig.h"
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#include "log.h"
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#include "dumper.h"
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#include "pcaps.h"
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void setsig(int sig, int oneshot)
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{
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struct sigaction sa;
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memset(&sa, 0, sizeof sa);
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if (oneshot) {
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sa.sa_handler = sigbreak;
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sa.sa_flags = SA_RESETHAND;
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} else {
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sa.sa_handler = sigclose;
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sa.sa_flags = SA_RESTART;
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}
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if (sigaction(sig, &sa, NULL) < 0) {
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logerr("sigaction: %s", strerror(errno));
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exit(1);
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}
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}
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void sigclose(int signum)
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{
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if (0 == last_ts.tv_sec)
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gettimeofday(&last_ts, NULL);
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if (signum == SIGALRM)
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alarm_set = FALSE;
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if (dumper_close(last_ts))
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breakloop_pcaps();
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}
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void sigbreak(int signum __attribute__((unused)))
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{
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logerr("%s: signalled break", ProgramName);
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main_exit = TRUE;
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breakloop_pcaps();
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}
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void* sigthread(void* arg)
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{
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#if HAVE_PTHREAD
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sigset_t* set = (sigset_t*)arg;
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int sig, err;
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while (1) {
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if ((err = sigwait(set, &sig))) {
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logerr("sigwait: %s", strerror(err));
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return 0;
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}
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switch (sig) {
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case SIGALRM:
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sigclose(sig);
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break;
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default:
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sigbreak(sig);
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break;
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}
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}
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#endif
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return 0;
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}
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