confile: add config_value_empty()

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

diff --git a/src/lxc/confile.c b/src/lxc/confile.c
index 8c5ebcb58b72369419c01c7e67c242f612b7371b..70821c3f6ebfaffd6e9fa4effdf92237f7b0db8c 100644 (file)
--- a/src/lxc/confile.c
+++ b/src/lxc/confile.c
@@ -286,6 +286,14 @@ int lxc_listconfigs(char *retv, int inlen)
        return fulllen;
 }
 
+static inline bool config_value_empty(const char *value)
+{
+       if (value && strlen(value) > 0)
+               return false;
+
+       return true;
+}
+
 static int config_string_item(char **conf_item, const char *value)
 {
        char *new_value;