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_ 36
