net/base/address_family.h

   1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef NET_BASE_ADDRESS_FAMILY_H_
   6 #define NET_BASE_ADDRESS_FAMILY_H_
   7
   8 namespace net {
   9
  10 // Enum wrapper around the address family types supported by host resolver
  11 // procedures.
  12 enum AddressFamily {
  13   ADDRESS_FAMILY_UNSPECIFIED,   // AF_UNSPEC
  14   ADDRESS_FAMILY_IPV4,          // AF_INET
  15   ADDRESS_FAMILY_IPV6,          // AF_INET6
  16   ADDRESS_FAMILY_LAST = ADDRESS_FAMILY_IPV6
  17 };
  18
  19 // HostResolverFlags is a bitflag enum used by host resolver procedures to
  20 // determine the value of addrinfo.ai_flags and work around getaddrinfo
  21 // peculiarities.
  22 enum {
  23   HOST_RESOLVER_CANONNAME = 1 << 0,  // AI_CANONNAME
  24   // Hint to the resolver proc that only loopback addresses are configured.
  25   HOST_RESOLVER_LOOPBACK_ONLY = 1 << 1,
  26   // Indicate the address family was set because no IPv6 support was detected.
  27   HOST_RESOLVER_DEFAULT_FAMILY_SET_DUE_TO_NO_IPV6 = 1 << 2,
  28   // The resolver should only invoke getaddrinfo, not DnsClient.
  29   HOST_RESOLVER_SYSTEM_ONLY = 1 << 3
  30 };
  31 typedef int HostResolverFlags;
  32
  33 }  // namespace net
  34
  35 #endif  // NET_BASE_ADDRESS_FAMILY_H_