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// Copyright 2015 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
/*
* This process just kills itself will the signal number
* specified on the command line.
*/
int main(int argc, char **argv) {
/*
* Parse command-line arguments.
*/
const char *progname = argv[0] ? argv[0] : "killmyself";
if (argc != 2) {
fprintf(stderr, "%s: Usage: %s <signal-number>\n",
progname, progname);
exit(1);
}
int sig = atoi(argv[1]);
/*
* Restore the default signal action, in case the
* parent process was ignoring the signal.
*
* This is needed because run_unittests ignores
* SIGHUP signals and this gets inherited by child
* processes.
*/
signal(sig, SIG_DFL);
/*
* Send ourself the signal.
*/
if (raise(sig) != 0) {
fprintf(stderr, "%s: raise failed: %s", progname,
strerror(errno));
exit(1);
}
// We can get here if the signal was a non-fatal signal,
// e.g. SIGCONT.
exit(0);
}
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