f048872e91
migrating talk/base to webrtc/base. BUG=N/A R=niklas.enbom@webrtc.org Review URL: https://webrtc-codereview.appspot.com/17479005 git-svn-id: http://webrtc.googlecode.com/svn/trunk@6129 4adac7df-926f-26a2-2b94-8c16560cd09d
142 lines
4.0 KiB
C++
142 lines
4.0 KiB
C++
/*
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* Copyright 2011 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_BASE_IPADDRESS_H_
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#define WEBRTC_BASE_IPADDRESS_H_
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#if defined(WEBRTC_POSIX)
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#endif
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#if defined(WEBRTC_WIN)
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#endif
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#include <string.h>
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#include <string>
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#include <vector>
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#include "webrtc/base/basictypes.h"
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#include "webrtc/base/byteorder.h"
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#if defined(WEBRTC_WIN)
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#include "webrtc/base/win32.h"
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#endif
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namespace rtc {
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// Version-agnostic IP address class, wraps a union of in_addr and in6_addr.
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class IPAddress {
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public:
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IPAddress() : family_(AF_UNSPEC) {
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::memset(&u_, 0, sizeof(u_));
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}
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explicit IPAddress(const in_addr &ip4) : family_(AF_INET) {
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memset(&u_, 0, sizeof(u_));
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u_.ip4 = ip4;
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}
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explicit IPAddress(const in6_addr &ip6) : family_(AF_INET6) {
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u_.ip6 = ip6;
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}
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explicit IPAddress(uint32 ip_in_host_byte_order) : family_(AF_INET) {
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memset(&u_, 0, sizeof(u_));
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u_.ip4.s_addr = HostToNetwork32(ip_in_host_byte_order);
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}
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IPAddress(const IPAddress &other) : family_(other.family_) {
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::memcpy(&u_, &other.u_, sizeof(u_));
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}
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~IPAddress() {}
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const IPAddress & operator=(const IPAddress &other) {
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family_ = other.family_;
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::memcpy(&u_, &other.u_, sizeof(u_));
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return *this;
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}
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bool operator==(const IPAddress &other) const;
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bool operator!=(const IPAddress &other) const;
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bool operator <(const IPAddress &other) const;
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bool operator >(const IPAddress &other) const;
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friend std::ostream& operator<<(std::ostream& os, const IPAddress& addr);
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int family() const { return family_; }
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in_addr ipv4_address() const;
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in6_addr ipv6_address() const;
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// Returns the number of bytes needed to store the raw address.
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size_t Size() const;
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// Wraps inet_ntop.
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std::string ToString() const;
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// Same as ToString but anonymizes it by hiding the last part.
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std::string ToSensitiveString() const;
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// Returns an unmapped address from a possibly-mapped address.
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// Returns the same address if this isn't a mapped address.
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IPAddress Normalized() const;
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// Returns this address as an IPv6 address.
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// Maps v4 addresses (as ::ffff:a.b.c.d), returns v6 addresses unchanged.
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IPAddress AsIPv6Address() const;
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// For socketaddress' benefit. Returns the IP in host byte order.
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uint32 v4AddressAsHostOrderInteger() const;
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static void set_strip_sensitive(bool enable);
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private:
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int family_;
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union {
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in_addr ip4;
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in6_addr ip6;
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} u_;
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static bool strip_sensitive_;
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};
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bool IPFromAddrInfo(struct addrinfo* info, IPAddress* out);
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bool IPFromString(const std::string& str, IPAddress* out);
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bool IPIsAny(const IPAddress& ip);
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bool IPIsLoopback(const IPAddress& ip);
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bool IPIsPrivate(const IPAddress& ip);
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bool IPIsUnspec(const IPAddress& ip);
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size_t HashIP(const IPAddress& ip);
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// These are only really applicable for IPv6 addresses.
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bool IPIs6Bone(const IPAddress& ip);
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bool IPIs6To4(const IPAddress& ip);
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bool IPIsSiteLocal(const IPAddress& ip);
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bool IPIsTeredo(const IPAddress& ip);
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bool IPIsULA(const IPAddress& ip);
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bool IPIsV4Compatibility(const IPAddress& ip);
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bool IPIsV4Mapped(const IPAddress& ip);
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// Returns the precedence value for this IP as given in RFC3484.
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int IPAddressPrecedence(const IPAddress& ip);
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// Returns 'ip' truncated to be 'length' bits long.
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IPAddress TruncateIP(const IPAddress& ip, int length);
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// Returns the number of contiguously set bits, counting from the MSB in network
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// byte order, in this IPAddress. Bits after the first 0 encountered are not
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// counted.
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int CountIPMaskBits(IPAddress mask);
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} // namespace rtc
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#endif // WEBRTC_BASE_IPADDRESS_H_
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