confile: clear lxc.network.<n>.ipv{4,6} when empty

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/confile.c b/src/lxc/confile.c
index 7ed3bf022d3d7762d613ccd3c1126408bdd96416..db0aa33ec093a402e7ad48dccb5bc9505fbcddd2 100644 (file)
--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -870,6 +870,9 @@ static int config_network_ipv4(const char *key, const char *value,
        struct lxc_list *list;
        char *cursor, *slash, *addr = NULL, *bcast = NULL, *prefix = NULL;
 
+       if (!value || !strlen(value))
+               return lxc_clear_config_item(lxc_conf, key);
+
        netdev = network_netdev(key, value, &lxc_conf->network);
        if (!netdev)
                return -1;
@@ -997,6 +1000,9 @@ static int config_network_ipv6(const char *key, const char *value,
        char *slash,*valdup;
        char *netmask;
 
+       if (!value || !strlen(value))
+               return lxc_clear_config_item(lxc_conf, key);
+
        netdev = network_netdev(key, value, &lxc_conf->network);
        if (!netdev)
                return -1;