dzwdz
/
catboy
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Use sigaction in sandman

master
Curtis McEnroe 2018-12-01 10:28:00 -05:00
parent 414f928ac5
commit e708b795b5
No known key found for this signature in database
GPG Key ID: CEA2F97ADCFCD77C
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sandman.m
View File

@ -21,11 +21,11 @@
#import <sysexits.h>
#import <unistd.h>
void sigchld(int sig) {
void handler(int sig) {
(void)sig;
int status;
pid_t pid = wait(&status);
if (pid < 0) err(EX_OSERR, "wait");
if (pid < 0) _exit(EX_OSERR);
if (WIFSIGNALED(status)) {
_exit(128 + WTERMSIG(status));
} else {
@ -36,7 +36,14 @@ void sigchld(int sig) {
int main(int argc, char *argv[]) {
if (argc < 2) return EX_USAGE;
signal(SIGCHLD, sigchld);
sigset_t mask;
sigemptyset(&mask);
struct sigaction sa = {
.sa_handler = handler,
.sa_mask = mask,
.sa_flags = SA_RESTART,
};
sigaction(SIGCHLD, &sa, NULL);
pid_t pid = fork();
if (pid < 0) err(EX_OSERR, "fork");