From 25639ca722b69a3821bb6622fef795a7138bd3dc Mon Sep 17 00:00:00 2001
From: Mike Barcroft <mike@FreeBSD.org>
Date: Mon, 21 Apr 2003 17:20:48 +0000
Subject: [PATCH] Force output of jail ID (if necessary) before excuting the
 command, otherwise redirection of stdout to a file using block buffering will
 not complete in time.

---
 usr.sbin/jail/jail.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/usr.sbin/jail/jail.c b/usr.sbin/jail/jail.c
index 87bc483a9ab4..62db696a0e78 100644
--- a/usr.sbin/jail/jail.c
+++ b/usr.sbin/jail/jail.c
@@ -80,8 +80,10 @@ main(int argc, char **argv)
 	i = jail(&j);
 	if (i == -1)
 		err(1, "jail");
-	if (iflag)
+	if (iflag) {
 		printf("%d\n", i);
+		fflush(stdout);
+	}
 	if (username != NULL) {
 		if (setgroups(ngroups, groups) != 0)
 			err(1, "setgroups");