Report subcommand handler errors in mfiutil/mptutil so that tools that

invoke the utilities can robustly report errors.

Submitted by:	gcooper
Reviewed by:	jhb
Approved by:	cperciva (mentor)
MFC after:	1 week

1 files changed, 5 insertions, 3 deletions

diff --git a/usr.sbin/mptutil/mptutil.c b/usr.sbin/mptutil/mptutil.c
index e7b5806..63e8efa 100644
--- a/usr.sbin/mptutil/mptutil.c
+++ b/usr.sbin/mptutil/mptutil.c
@@ -114,10 +114,12 @@ main(int ac, char **av)
 
 	SET_FOREACH(cmd, MPT_DATASET(top)) {
 		if (strcmp((*cmd)->name, av[0]) == 0) {
-			(*cmd)->handler(ac, av);
-			return (0);
+			if ((*cmd)->handler(ac, av))
+				return (1);
+			else
+				return (0);
 		}
 	}
 	warnx("Unknown command %s.", av[0]);
-	return (0);
+	return (1);
 }