nacl_io: Add inet_pton() and ip6addr_* consts.

native_client_sdk/src/libraries/nacl_io/in6_addr.c

Index: native_client_sdk/src/libraries/nacl_io/in6_addr.c
diff --git a/native_client_sdk/src/libraries/nacl_io/in6_addr.c b/native_client_sdk/src/libraries/nacl_io/in6_addr.c
new file mode 100644
index 0000000000000000000000000000000000000000..a09ea7b0926acedb78b69e683a4a669a38e5285e
--- /dev/null
+++ b/native_client_sdk/src/libraries/nacl_io/in6_addr.c
@@ -0,0 +1,21 @@
+/* Copyright 2013 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file. */
+
+#include "nacl_io/ossocket.h"
+#if defined(PROVIDES_SOCKET_API) && !defined(__GLIBC__)
+
+#include <netinet/in.h>
+
+const struct in6_addr in6addr_any = {
+    {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}};
+const struct in6_addr in6addr_loopback = {
+    {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}}};
+const struct in6_addr in6addr_nodelocal_allnodes = {
+    {{0xff, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}}};
+const struct in6_addr in6addr_linklocal_allnodes = {
+    {{0xff, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1}}};
+const struct in6_addr in6addr_linklocal_allrouters = {
+    {{0xff, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2}}};
+
+#endif  /* defined(PROVIDES_SOCKET_API) && !defined(__GLIBC__) */