xref: /recipes/reactor/s04/InetAddress.cc

// Copyright 2010, Shuo Chen.  All rights reserved.
// http://code.google.com/p/muduo/
//
// Use of this source code is governed by a BSD-style license
// that can be found in the License file.

// Author: Shuo Chen (chenshuo at chenshuo dot com)

#include "InetAddress.h"

#include "SocketsOps.h"

#include <strings.h>  // bzero
#include <netinet/in.h>

#include <boost/static_assert.hpp>

//     /* Structure describing an Internet socket address.  */
//     struct sockaddr_in {
//         sa_family_t    sin_family; /* address family: AF_INET */
//         uint16_t       sin_port;   /* port in network byte order */
//         struct in_addr sin_addr;   /* internet address */
//     };

//     /* Internet address. */
//     typedef uint32_t in_addr_t;
//     struct in_addr {
//         in_addr_t       s_addr;     /* address in network byte order */
//     };

using namespace muduo;
using std::string;

static const in_addr_t kInaddrAny = INADDR_ANY;

BOOST_STATIC_ASSERT(sizeof(InetAddress) == sizeof(struct sockaddr_in));

InetAddress::InetAddress(uint16_t port)
{
  bzero(&addr_, sizeof addr_);
  addr_.sin_family = AF_INET;
  addr_.sin_addr.s_addr = sockets::hostToNetwork32(kInaddrAny);
  addr_.sin_port = sockets::hostToNetwork16(port);
}

InetAddress::InetAddress(const string& ip, uint16_t port)
{
  bzero(&addr_, sizeof addr_);
  sockets::fromHostPort(ip.c_str(), port, &addr_);
}

string InetAddress::toHostPort() const
{
  char buf[32];
  sockets::toHostPort(buf, sizeof buf, addr_);
  return buf;
}