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 }; 17 18 // HostResolverFlags is a bitflag enum used by host resolver procedures to 19 // determine the value of addrinfo.ai_flags and work around getaddrinfo 20 // peculiarities. 21 enum { 22 HOST_RESOLVER_CANONNAME = 1 << 0, // AI_CANONNAME 23 // Hint to the resolver proc that only loopback addresses are configured. 24 HOST_RESOLVER_LOOPBACK_ONLY = 1 << 1, 25 // Indicate the address family was set because no IPv6 support was detected. 26 HOST_RESOLVER_DEFAULT_FAMILY_SET_DUE_TO_NO_IPV6 = 1 << 2, 27 // The resolver should only invoke getaddrinfo, not DnsClient. 28 HOST_RESOLVER_SYSTEM_ONLY = 1 << 3 29 }; 30 typedef int HostResolverFlags; 31 32 } // namespace net 33 34 #endif // NET_BASE_ADDRESS_FAMILY_H_ 35