From: Dwight Engen <dwight.engen@oracle.com>
Date: Tue, 16 Jul 2013 14:35:02 +0000 (-0400)
Subject: clone: only update <rootfs>/etc/hostname if it exists
X-Git-Tag: lxc-1.0.0.alpha1~1^2~118
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8058be395d46cfabf2dacd7df79e95309619986a;p=thirdparty%2Flxc.git

clone: only update <rootfs>/etc/hostname if it exists

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
---

diff --git a/src/lxc/lxccontainer.c b/src/lxc/lxccontainer.c
index c5aae99dc..b0695bca2 100644
--- a/src/lxc/lxccontainer.c
+++ b/src/lxc/lxccontainer.c
@@ -1987,6 +1987,8 @@ static int clone_update_rootfs(struct lxc_container *c0,
 		ret = snprintf(path, MAXPATHLEN, "%s/etc/hostname", bdev->dest);
 		if (ret < 0 || ret >= MAXPATHLEN)
 			exit(1);
+		if (!file_exists(path))
+			exit(0);
 		if (!(fout = fopen(path, "w"))) {
 			SYSERROR("unable to open %s: ignoring\n", path);
 			exit(0);