From 28bb9321e2c55aa93097487e41c3aca95e0c106c Mon Sep 17 00:00:00 2001
From: Qiang Huang <h.huangqiang@huawei.com>
Date: Wed, 15 Jan 2014 12:09:26 +0800
Subject: [PATCH] cgroup.c: redefine the valid cgroup name
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Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
---
 src/lxc/cgroup.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/lxc/cgroup.c b/src/lxc/cgroup.c
index 6d837f97e..69910cc65 100644
--- a/src/lxc/cgroup.c
+++ b/src/lxc/cgroup.c
@@ -1669,7 +1669,11 @@ bool is_valid_cgroup(const char *name)
 {
 	const char *p;
 	for (p = name; *p; p++) {
-		if (*p < 32 || *p == 127 || *p == '/')
+		/* Use the ASCII printable characters range(32 - 127)
+		 * is reasonable, we kick out 32(SPACE) because it'll
+		 * break legacy lxc-ls
+		 */
+		if (*p <= 32 || *p >= 127 || *p == '/')
 			return false;
 	}
 	return strcmp(name, ".") != 0 && strcmp(name, "..") != 0;