From aedd3a6babbaf35becb7770f73f30b20b464393f Mon Sep 17 00:00:00 2001
From: Jan Moskyto Matejka <mq@ucw.cz>
Date: Wed, 16 Dec 2015 10:43:58 +0100
Subject: [PATCH] Implemented missing prefix manipulation functions

---
 lib/net.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/lib/net.c b/lib/net.c
index e2765995..56eb16fd 100644
--- a/lib/net.c
+++ b/lib/net.c
@@ -96,6 +96,23 @@ net_validate(const net_addr *N)
   }
 }
 
+void
+net_normalize(net_addr *N)
+{
+  net_addr_union *n = (void *) N;
+
+  switch (n->n.type)
+  {
+  case NET_IP4:
+  case NET_VPN4:
+    return net_normalize_ip4(&n->ip4);
+
+  case NET_IP6:
+  case NET_VPN6:
+    return net_normalize_ip6(&n->ip6);
+  }
+}
+
 int
 net_classify(const net_addr *N)
 {
@@ -114,3 +131,31 @@ net_classify(const net_addr *N)
 
   return 0;
 }
+
+int
+ipa_in_netX(const ip_addr A, const net_addr *N)
+{
+  switch (N->type)
+  {
+  case NET_IP4:
+  case NET_VPN4:
+    if (!ipa_is_ip4(A)) return 0;
+    break;
+
+  case NET_IP6:
+  case NET_VPN6:
+    if (ipa_is_ip4(A)) return 0;
+    break;
+  }
+
+  return ipa_zero(ipa_and(ipa_xor(A, net_prefix(N)), ipa_mkmask(net_pxlen(N))));
+}
+
+int
+net_in_netX(const net_addr *A, const net_addr *N)
+{
+  if (A->type != N->type)
+    return 0;
+
+  return (net_pxlen(N) <= net_pxlen(A)) && ipa_in_netX(net_prefix(A), N);
+}