mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 05:40:42 +00:00
4665303c92
The version string is based on the TAG and revision. Also: * Bump the TAG to 3.1 * Update the arm compiler binary used in kube-cross
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
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 <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
|
|
#define STRINGIFY(x) #x
|
|
#define VERSION_STRING(x) STRINGIFY(x)
|
|
|
|
#ifndef VERSION
|
|
#define VERSION HEAD
|
|
#endif
|
|
|
|
static void sigdown(int signo) {
|
|
psignal(signo, "Shutting down, got signal");
|
|
exit(0);
|
|
}
|
|
|
|
static void sigreap(int signo) {
|
|
while (waitpid(-1, NULL, WNOHANG) > 0)
|
|
;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
int i;
|
|
for (i = 1; i < argc; ++i) {
|
|
if (!strcasecmp(argv[i], "-v")) {
|
|
printf("pause.c %s\n", VERSION_STRING(VERSION));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (getpid() != 1)
|
|
/* Not an error because pause sees use outside of infra containers. */
|
|
fprintf(stderr, "Warning: pause should be the first process\n");
|
|
|
|
if (sigaction(SIGINT, &(struct sigaction){.sa_handler = sigdown}, NULL) < 0)
|
|
return 1;
|
|
if (sigaction(SIGTERM, &(struct sigaction){.sa_handler = sigdown}, NULL) < 0)
|
|
return 2;
|
|
if (sigaction(SIGCHLD, &(struct sigaction){.sa_handler = sigreap,
|
|
.sa_flags = SA_NOCLDSTOP},
|
|
NULL) < 0)
|
|
return 3;
|
|
|
|
for (;;)
|
|
pause();
|
|
fprintf(stderr, "Error: infinite loop terminated\n");
|
|
return 42;
|
|
}
|