lxc-checkpoint: close stdout/stdin when daemonizing

If we don't close these running lxc-checkpoint via: ssh host "sudo lxc-checkpoint ..." just hangs. We leave stderr open so that subesquent errors will print correctly (and also because for whatever reason it doesn't break ssh :). Signed-off-by: Tycho Andersen <tycho.andersen at canonical.com> Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>

lxc-checkpoint: close stdout/stdin when daemonizing
7943ec56 · Tycho Andersen · Serge Hallyn · 2ba7a429 · 7943ec56
Commit 7943ec56 authored Sep 30, 2014 by Tycho Andersen Committed by Serge Hallyn Oct 08, 2014
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lxc_checkpoint.c src/lxc/lxc_checkpoint.c +5 -0

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--- a/src/lxc/lxc_checkpoint.c
+++ b/src/lxc/lxc_checkpoint.c
@@ -154,6 +154,11 @@ bool restore(struct lxc_container *c)
 		pid = fork();
 	if (pid == 0) {
+		if (my_args.daemonize) {
+			close(0);
+			close(1);
+		}
 		ret = c->restore(c, checkpoint_dir, verbose);
 		if (!ret) {