st

commit fb107f24b6580e3f110cdaca6bb192f13f2e07ee
parent 158a8a0f502f10a11bff325d961e374a6782115a
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon,  4 Aug 2014 22:07:04 +0200

Add error message when child exits whit error

Master proccess was not showing any error message when the child
died with an error, and it was very confusing for the user (for
example with incorrect -e command).

Diffstat:
M
st.c
 | 
11
+++++------

1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/st.c b/st.c
@@ -1176,16 +1176,15 @@ execsh(void) {
 
 void
 sigchld(int a) {
-	int stat = 0;
+	int stat, ret;
 
 	if(waitpid(pid, &stat, 0) < 0)
 		die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
 
-	if(WIFEXITED(stat)) {
-		exit(WEXITSTATUS(stat));
-	} else {
-		exit(EXIT_FAILURE);
-	}
+	ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
+	if (ret != EXIT_SUCCESS)
+		die("child finished with error '%d'\n", stat);
+	exit(EXIT_SUCCESS);
 }
 
 void