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// Copyright (c) 2015 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_IP_ADDRESS_NET_H_
#define NET_BASE_IP_ADDRESS_NET_H_
#include <stddef.h>
#include <stdint.h>
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/strings/string_piece.h"
#include "net/base/ip_address_number.h"
#include "net/base/net_export.h"
namespace net {
class NET_EXPORT IPAddress {
public:
static const size_t kIPv4AddressSize;
static const size_t kIPv6AddressSize;
// Creates a zero-sized, invalid address.
IPAddress();
// Creates an IP address from a deprecated IPAddressNumber.
explicit IPAddress(const IPAddressNumber& address);
// Copies the input address to |ip_address_|. The input is expected to be in
// network byte order.
template <size_t N>
IPAddress(const uint8_t(&address)[N])
: IPAddress(address, N) {}
// Copies the input address to |ip_address_| taking an additional length
// parameter. The input is expected to be in network byte order.
IPAddress(const uint8_t* address, size_t address_len);
~IPAddress();
// Returns true if the IP has |kIPv4AddressSize| elements.
bool IsIPv4() const;
// Returns true if the IP has |kIPv6AddressSize| elements.
bool IsIPv6() const;
// Returns true if the IP is either an IPv4 or IPv6 address. This function
// only checks the address length.
bool IsValid() const;
// Returns true if an IP address hostname is in a range reserved by the IANA.
// Works with both IPv4 and IPv6 addresses, and only compares against a given
// protocols's reserved ranges.
bool IsReserved() const;
// Returns true if |ip_address_| is an IPv4-mapped IPv6 address.
bool IsIPv4Mapped() const;
// The size in bytes of |ip_address_|.
size_t size() const { return ip_address_.size(); }
// Returns true if the IP is an empty, zero-sized (invalid) address.
bool empty() const { return ip_address_.empty(); }
// Returns the canonical string representation of an IP address.
// For example: "192.168.0.1" or "::1". The IP address must be
// valid, calling this on an invalid address will result in a crash.
std::string ToString() const;
// Parses an IP address literal (either IPv4 or IPv6) to its numeric value.
// Returns true on success and fills |ip_address| with the numeric value.
static bool FromIPLiteral(const base::StringPiece& ip_literal,
IPAddress* ip_address) WARN_UNUSED_RESULT;
// Returns the underlying byte vector.
const std::vector<uint8_t>& bytes() const { return ip_address_; };
bool operator==(const IPAddress& that) const;
bool operator<(const IPAddress& that) const;
private:
// IPv4 addresses will have length kIPv4AddressSize, whereas IPv6 address
// will have length kIPv6AddressSize.
std::vector<uint8_t> ip_address_;
// This class is copyable and assignable.
};
} // namespace net
#endif // NET_BASE_IP_ADDRESS_NET_H_
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