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Diffstat (limited to 'pause/pause.c')
-rw-r--r-- | pause/pause.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/pause/pause.c b/pause/pause.c deleted file mode 100644 index 1e363bd7a..000000000 --- a/pause/pause.c +++ /dev/null @@ -1,69 +0,0 @@ -/* -Copyright 2016 The Kubernetes Authors. -Copyright 2021 The Podman 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; -} |