commit: b961ecfc9eadb5ecb3b4e4bed1ebbfcb1f6f1f2f
parent 37076a6e6d80e0f3d32680fee3342ac14c7e8467
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date: Sun, 2 Jun 2024 07:03:27 +0200
Handle SIGCHLD
Diffstat:
| M | pts.c | 21 | +++++++++++++++++++-- |
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/pts.c b/pts.c
@@ -12,6 +12,18 @@
#include <poll.h>
#include <unistd.h> // execvp, dup2
#include <sys/wait.h>
+#include <signal.h>
+
+static int child_status = 0;
+static pid_t pid = -1;
+
+static void
+handle_sigchld(int sig)
+{
+ (void)sig;
+ waitpid(pid, &child_status, WNOHANG);
+ exit(WEXITSTATUS(child_status));
+}
int
main(int argc, char *argv[])
@@ -43,7 +55,7 @@ main(int argc, char *argv[])
return 1;
}
- pid_t pid = fork();
+ pid = fork();
if(pid < 0)
{
fprintf(stderr, "pts: Fork failed: %s\n", strerror(errno));
@@ -64,8 +76,13 @@ main(int argc, char *argv[])
}
};
+ if(signal(SIGCHLD, handle_sigchld) == SIG_ERR)
+ {
+ fprintf(stderr, "timeout: Failed registering handler for SIGCHLD: %s\n", strerror(errno));
+ return 1;
+ }
+
// parent
- int child_status = 0;
do {
int ret = poll(pfds, nfds, -1);
if(ret < 0)
