MINOR: dns: smallest DNS fqdn size
global variable used to define the size of the smallest fqdn possible.
diff --git a/include/types/dns.h b/include/types/dns.h
index acff53a..f28398d 100644
--- a/include/types/dns.h
+++ b/include/types/dns.h
@@ -35,6 +35,9 @@
/* DNS minimun record size: 1 char + 1 NULL + type + class */
#define DNS_MIN_RECORD_SIZE ( 1 + 1 + 2 + 2 )
+/* DNS smallest fqdn 'a.gl' size */
+# define DNS_SMALLEST_FQDN_SIZE 4
+
/* maximum number of query records in a DNS response
* For now, we allow only one */
#define DNS_MAX_QUERY_RECORDS 1