st

commit 07ce96a3a0f4a650933f5f586082cbf2064ea2c1 (patch)
parent 190b94c7a2a7bb2f5d55cbb6eb1779fd042c6467
Author: Jochen Sprickerhof <dwm@jochen.sprickerhof.de>
Date:   Wed, 22 Apr 2015 17:22:34 +0200

Fix sigchld

Only wait for termination of the shell.

Diffstat:
M
st.c
 | 
6
+++++-

1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/st.c b/st.c
@@ -1238,10 +1238,14 @@ execsh(void) {
 void
 sigchld(int a) {
 	int stat, ret;
+	pid_t p;
 
-	if(waitpid(pid, &stat, 0) < 0)
+	if((p = waitpid(pid, &stat, WNOHANG)) < 0)
 		die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
 
+	if(pid != p)
+		return;
+
 	ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
 	if (ret != EXIT_SUCCESS)
 		die("child finished with error '%d'\n", stat);