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- // Copyright (c) 2010 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.
- #ifndef NET_BASE_ADDRESS_FAMILY_H_
- #define NET_BASE_ADDRESS_FAMILY_H_
- #include "net/base/net_export.h"
- namespace net {
- class IPAddress;
- // Enum wrapper around the address family types supported by host resolver
- // procedures.
- enum AddressFamily {
- ADDRESS_FAMILY_UNSPECIFIED, // AF_UNSPEC
- ADDRESS_FAMILY_IPV4, // AF_INET
- ADDRESS_FAMILY_IPV6, // AF_INET6
- ADDRESS_FAMILY_LAST = ADDRESS_FAMILY_IPV6
- };
- // HostResolverFlags is a bitflag enum used by host resolver procedures to
- // determine the value of addrinfo.ai_flags and work around getaddrinfo
- // peculiarities.
- enum {
- HOST_RESOLVER_CANONNAME = 1 << 0, // AI_CANONNAME
- // Hint to the resolver proc that only loopback addresses are configured.
- HOST_RESOLVER_LOOPBACK_ONLY = 1 << 1,
- // Indicate the address family was set because no IPv6 support was detected.
- HOST_RESOLVER_DEFAULT_FAMILY_SET_DUE_TO_NO_IPV6 = 1 << 2,
- // The resolver should avoid resolving using multicast protocols (LLMNR or
- // mDNS).
- HOST_RESOLVER_AVOID_MULTICAST = 1 << 3
- };
- typedef int HostResolverFlags;
- // Returns AddressFamily for |address|.
- NET_EXPORT AddressFamily GetAddressFamily(const IPAddress& address);
- // Maps the given AddressFamily to either AF_INET, AF_INET6 or AF_UNSPEC.
- NET_EXPORT int ConvertAddressFamily(AddressFamily address_family);
- // Maps AF_INET, AF_INET6 or AF_UNSPEC to an AddressFamily.
- NET_EXPORT AddressFamily ToAddressFamily(int family);
- } // namespace net
- #endif // NET_BASE_ADDRESS_FAMILY_H_
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