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46 lines
1.5 KiB
C++
46 lines
1.5 KiB
C++
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef NET_BASE_ADDRESS_FAMILY_H_
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#define NET_BASE_ADDRESS_FAMILY_H_
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#include "net/base/net_export.h"
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namespace net {
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class IPAddress;
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// Enum wrapper around the address family types supported by host resolver
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// procedures.
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enum AddressFamily {
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ADDRESS_FAMILY_UNSPECIFIED, // AF_UNSPEC
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ADDRESS_FAMILY_IPV4, // AF_INET
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ADDRESS_FAMILY_IPV6, // AF_INET6
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ADDRESS_FAMILY_LAST = ADDRESS_FAMILY_IPV6
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};
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// HostResolverFlags is a bitflag enum used by host resolver procedures to
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// determine the value of addrinfo.ai_flags and work around getaddrinfo
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// peculiarities.
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enum {
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HOST_RESOLVER_CANONNAME = 1 << 0, // AI_CANONNAME
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// Hint to the resolver proc that only loopback addresses are configured.
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HOST_RESOLVER_LOOPBACK_ONLY = 1 << 1,
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// Indicate the address family was set because no IPv6 support was detected.
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HOST_RESOLVER_DEFAULT_FAMILY_SET_DUE_TO_NO_IPV6 = 1 << 2,
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// The resolver should only invoke getaddrinfo, not DnsClient.
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HOST_RESOLVER_SYSTEM_ONLY = 1 << 3
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};
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typedef int HostResolverFlags;
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// Returns AddressFamily for |address|.
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NET_EXPORT AddressFamily GetAddressFamily(const IPAddress& address);
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// Maps the given AddressFamily to either AF_INET, AF_INET6 or AF_UNSPEC.
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NET_EXPORT int ConvertAddressFamily(AddressFamily address_family);
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} // namespace net
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#endif // NET_BASE_ADDRESS_FAMILY_H_
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