/* * Copyright 2004 The WebRTC Project Authors. All rights reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree.
*/
// Records an IP address and port. class RTC_EXPORT SocketAddress { public: // Creates a nil address.
SocketAddress();
// Creates the address with the given host and port. Host may be a // literal IP string or a hostname to be resolved later. // DCHECKs that port is in valid range (0 to 2^16-1).
SocketAddress(absl::string_view hostname, int port);
// Creates the address with the given IP and port. // IP is given as an integer in host byte order. V4 only, to be deprecated. // DCHECKs that port is in valid range (0 to 2^16-1).
SocketAddress(uint32_t ip_as_host_order_integer, int port);
// Creates the address with the given IP and port. // DCHECKs that port is in valid range (0 to 2^16-1).
SocketAddress(const IPAddress& ip, int port);
// Creates a copy of the given address.
SocketAddress(const SocketAddress& addr);
// Resets to the nil address. void Clear();
// Determines if this is a nil address (empty hostname, any IP, null port) bool IsNil() const;
// Returns true if ip and port are set. bool IsComplete() const;
// Replaces our address with the given one.
SocketAddress& operator=(const SocketAddress& addr);
// Changes the IP of this address to the given one, and clears the hostname // IP is given as an integer in host byte order. V4 only, to be deprecated.. void SetIP(uint32_t ip_as_host_order_integer);
// Changes the IP of this address to the given one, and clears the hostname. void SetIP(const IPAddress& ip);
// Changes the hostname of this address to the given one. // Does not resolve the address; use Resolve to do so. void SetIP(absl::string_view hostname);
// Sets the IP address while retaining the hostname. Useful for bypassing // DNS for a pre-resolved IP. // IP is given as an integer in host byte order. V4 only, to be deprecated. void SetResolvedIP(uint32_t ip_as_host_order_integer);
// Sets the IP address while retaining the hostname. Useful for bypassing // DNS for a pre-resolved IP. void SetResolvedIP(const IPAddress& ip);
// Changes the port of this address to the given one. // DCHECKs that port is in valid range (0 to 2^16-1). void SetPort(int port);
// Returns the IP address as a host byte order integer. // Returns 0 for non-v4 addresses.
uint32_t ip() const;
const IPAddress& ipaddr() const;
int family() const { return ip_.family(); }
// Returns the port part of this address.
uint16_t port() const;
// Returns the scope ID associated with this address. Scope IDs are a // necessary addition to IPv6 link-local addresses, with different network // interfaces having different scope-ids for their link-local addresses. // IPv4 address do not have scope_ids and sockaddr_in structures do not have // a field for them. int scope_id() const { return scope_id_; } void SetScopeID(int id) { scope_id_ = id; }
// Returns the 'host' portion of the address (hostname or IP) in a form // suitable for use in a URI. If both IP and hostname are present, hostname // is preferred. IPv6 addresses are enclosed in square brackets ('[' and ']').
std::string HostAsURIString() const;
// Same as HostAsURIString but anonymizes IP addresses by hiding the last // part.
std::string HostAsSensitiveURIString() const;
// Returns the port as a string.
std::string PortAsString() const;
// Returns hostname:port or [hostname]:port.
std::string ToString() const;
// Same as ToString but anonymizes it by hiding the last part.
std::string ToSensitiveString() const;
// Returns sensitive description of address in a form which both includes // resolved and unresolved addresses based on their availability.
std::string ToSensitiveNameAndAddressString() const;
// Parses hostname:port and [hostname]:port. bool FromString(absl::string_view str);
// Determines whether this represents a missing / any IP address. // That is, 0.0.0.0 or ::. // Hostname and/or port may be set. bool IsAnyIP() const;
// Determines whether the IP address refers to a loopback address. // For v4 addresses this means the address is in the range 127.0.0.0/8. // For v6 addresses this means the address is ::1. bool IsLoopbackIP() const;
// Determines whether the IP address is in one of the private ranges: // For v4: 127.0.0.0/8 10.0.0.0/8 192.168.0.0/16 172.16.0.0/12. // For v6: FE80::/16 and ::1. bool IsPrivateIP() const;
// Determines whether the hostname has been resolved to an IP. bool IsUnresolvedIP() const;
// Determines whether this address is identical to the given one. booloperator==(const SocketAddress& addr) const; inlinebooloperator!=(const SocketAddress& addr) const { return !this->operator==(addr);
}
// Compares based on IP and then port. booloperator<(const SocketAddress& addr) const;
// Determines whether this address has the same IP as the one given. bool EqualIPs(const SocketAddress& addr) const;
// Determines whether this address has the same port as the one given. bool EqualPorts(const SocketAddress& addr) const;
// Hashes this address into a small number.
size_t Hash() const;
// Write this address to a sockaddr_in. // If IPv6, will zero out the sockaddr_in and sets family to AF_UNSPEC. void ToSockAddr(sockaddr_in* saddr) const;
// Read this address from a sockaddr_in. bool FromSockAddr(const sockaddr_in& saddr);
// Read and write the address to/from a sockaddr_storage. // Dual stack version always sets family to AF_INET6, and maps v4 addresses. // The other version doesn't map, and outputs an AF_INET address for // v4 or mapped addresses, and AF_INET6 addresses for others. // Returns the size of the sockaddr_in or sockaddr_in6 structure that is // written to the sockaddr_storage, or zero on failure.
size_t ToDualStackSockAddrStorage(sockaddr_storage* saddr) const;
size_t ToSockAddrStorage(sockaddr_storage* saddr) const;
private:
std::string hostname_;
IPAddress ip_;
uint16_t port_; int scope_id_; bool literal_; // Indicates that 'hostname_' contains a literal IP string.
};
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