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// Copyright (c) 2012 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.
#include "net/base/ip_endpoint.h"
#include "base/logging.h"
#include "base/string_number_conversions.h"
#include "base/sys_byteorder.h"
#if defined(OS_WIN)
#include <winsock2.h>
#elif defined(OS_POSIX)
#include <netinet/in.h>
#endif
namespace net {
namespace {
// By definition, socklen_t is large enough to hold both sizes.
const socklen_t kSockaddrInSize = sizeof(struct sockaddr_in);
const socklen_t kSockaddrIn6Size = sizeof(struct sockaddr_in6);
}
IPEndPoint::IPEndPoint() : port_(0) {}
IPEndPoint::~IPEndPoint() {}
IPEndPoint::IPEndPoint(const IPAddressNumber& address, int port)
: address_(address),
port_(port) {}
IPEndPoint::IPEndPoint(const IPEndPoint& endpoint) {
address_ = endpoint.address_;
port_ = endpoint.port_;
}
AddressFamily IPEndPoint::GetFamily() const {
switch (address_.size()) {
case kIPv4AddressSize:
return ADDRESS_FAMILY_IPV4;
case kIPv6AddressSize:
return ADDRESS_FAMILY_IPV6;
default:
NOTREACHED() << "Bad IP address";
return ADDRESS_FAMILY_UNSPECIFIED;
}
}
int IPEndPoint::GetSockAddrFamily() const {
switch (address_.size()) {
case kIPv4AddressSize:
return AF_INET;
case kIPv6AddressSize:
return AF_INET6;
default:
NOTREACHED() << "Bad IP address";
return AF_UNSPEC;
}
}
bool IPEndPoint::ToSockAddr(struct sockaddr* address,
socklen_t* address_length) const {
DCHECK(address);
DCHECK(address_length);
switch (address_.size()) {
case kIPv4AddressSize: {
if (*address_length < kSockaddrInSize)
return false;
*address_length = kSockaddrInSize;
struct sockaddr_in* addr = reinterpret_cast<struct sockaddr_in*>(address);
memset(addr, 0, sizeof(struct sockaddr_in));
addr->sin_family = AF_INET;
addr->sin_port = base::HostToNet16(port_);
memcpy(&addr->sin_addr, &address_[0], kIPv4AddressSize);
break;
}
case kIPv6AddressSize: {
if (*address_length < kSockaddrIn6Size)
return false;
*address_length = kSockaddrIn6Size;
struct sockaddr_in6* addr6 =
reinterpret_cast<struct sockaddr_in6*>(address);
memset(addr6, 0, sizeof(struct sockaddr_in6));
addr6->sin6_family = AF_INET6;
addr6->sin6_port = base::HostToNet16(port_);
memcpy(&addr6->sin6_addr, &address_[0], kIPv6AddressSize);
break;
}
default:
return false;
}
return true;
}
bool IPEndPoint::FromSockAddr(const struct sockaddr* sock_addr,
socklen_t sock_addr_len) {
DCHECK(sock_addr);
const uint8* address;
size_t address_len;
uint16 port;
if (!GetIPAddressFromSockAddr(sock_addr, sock_addr_len, &address,
&address_len, &port)) {
return false;
}
address_.assign(address, address + address_len);
port_ = port;
return true;
}
std::string IPEndPoint::ToString() const {
return IPAddressToStringWithPort(address_, port_);
}
std::string IPEndPoint::ToStringWithoutPort() const {
return IPAddressToString(address_);
}
bool IPEndPoint::operator<(const IPEndPoint& that) const {
// Sort IPv4 before IPv6.
if (address_.size() != that.address_.size()) {
return address_.size() < that.address_.size();
}
if (address_ != that.address_) {
return address_ < that.address_;
}
return port_ < that.port_;
}
bool IPEndPoint::operator==(const IPEndPoint& that) const {
return address_ == that.address_ && port_ == that.port_;
}
} // namespace net
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