/usr/include/claw/socket_traits_win32.hpp is in libclaw-net-dev 1.7.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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CLAW - a C++ Library Absolutely Wonderful
CLAW is a free library without any particular aim but being useful to
anyone.
Copyright (C) 2005-2011 Julien Jorge
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
contact: julien.jorge@gamned.org
*/
/**
* \file socket_traits_win32.hpp
* \brief Win32 interface for using sockets.
* \author Julien Jorge
*/
#ifndef __CLAW_SOCKET_TRAITS_WIN32_HPP__
#define __CLAW_SOCKET_TRAITS_WIN32_HPP__
#include <sys/types.h>
#include <winsock2.h>
#include <sys/stat.h>
#include <unistd.h>
#include <claw/assert.hpp>
namespace claw
{
/**
* \brief Win32 interface for using sockets.
* \author Julien Jorge
*/
class socket_traits_win32
{
public:
/** \brief Type of the system description of the socket. */
typedef SOCKET descriptor;
public:
/** \brief Invalid socket descriptor. */
static const descriptor invalid_socket = INVALID_SOCKET;
public:
/*------------------------------------------------------------------------*/
/**
* \brief Initialize the use of the socket library.
* \return true if the initialization is successful.
*/
static bool init()
{
WORD version;
WSADATA data;
version = MAKEWORD( 2, 2 );
return WSAStartup( version, &data ) == 0;
} // socket_traits_win32::init()
/*------------------------------------------------------------------------*/
/**
* \brief Close the socket library.
* \return true if the operation is successful.
*/
static bool release()
{
return WSACleanup() == 0;
} // socket_traits_win32::release()
/*------------------------------------------------------------------------*/
/**
* \brief Open a socket.
* \return The descriptor on the loaded socket.
*/
static descriptor open()
{
descriptor fd = invalid_socket;
fd = socket(AF_INET, SOCK_STREAM, 0);
return fd;
} // socket_traits_win32::open()
/*------------------------------------------------------------------------*/
/**
* \brief Close a socket.
* \param d The descriptor of the socket to close.
* \return true if the socket has been closed.
*/
static bool close( descriptor d )
{
return ::closesocket(d) == 0;
} // socket_traits_win32::close()
/*------------------------------------------------------------------------*/
/**
* \brief Connect a socket to a port.
* \param d The descriptor of the socket to connect.
* \param address The adress to connect to.
* \param port The port to connect to.
* \return true if the connection is available.
*/
static bool connect( descriptor d, const std::string& address, int port )
{
CLAW_PRECOND( d != invalid_socket );
bool result=false;
struct hostent* hp = gethostbyname(address.c_str());
if (hp)
{
struct sockaddr_in sa;
memset (&sa, '\0', sizeof(sa));
sa.sin_family = hp->h_addrtype;
sa.sin_port = htons(port);
memcpy( &sa.sin_addr, hp->h_addr, hp->h_length );
if ( ::connect(d, (struct sockaddr*)&sa, sizeof(sa)) != SOCKET_ERROR )
result = true;
}
return result;
} // socket_traits_win32::connect()
/*------------------------------------------------------------------------*/
/**
* \brief Open a socket for incoming connexions.
* \param d The descriptor of the socket to open.
* \param port The port to connect to.
* \param queue_size The size of the queue for incoming connexions.
* \return true if the socket has been opened.
*/
static bool listen( descriptor d, int port, unsigned int queue_size )
{
CLAW_PRECOND( d != invalid_socket );
struct sockaddr_in addr;
memset (&addr, '\0', sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
if ( bind(d, (struct sockaddr*)&addr, sizeof(addr)) != SOCKET_ERROR )
return ::listen(d, queue_size) != SOCKET_ERROR;
else
return false;
} // socket_traits_win32::connect()
/*------------------------------------------------------------------------*/
/**
* \brief Select a socket for reading.
* \param d The descriptor of the socket to read.
* \param time_limit Maximum of seconds to wait before considering there's
* nothing to read. If \a time_limit is negative, the method wait
* until there is something to read.
* \return true if the socket is ready to be read.
*/
static bool select_read( descriptor d, int time_limit = -1 )
{
CLAW_PRECOND( d != invalid_socket );
struct timeval tv, *ptv;
fd_set fds;
if ( time_limit < 0 )
ptv = NULL;
else
{
tv.tv_sec = time_limit;
tv.tv_usec = 0;
ptv = &tv;
}
FD_ZERO(&fds);
FD_SET(d, &fds);
select( d+1, &fds, NULL, NULL, ptv );
return FD_ISSET( d, &fds );
} // socket_traits_win32::select_read()
/*------------------------------------------------------------------------*/
/**
* \brief Accept an incoming connexion.
* \param d The descriptor of the socket to listen.
* \return The descriptor of the incoming connexion.
*/
static descriptor accept( descriptor d )
{
return ::accept( d, NULL, NULL );
} // socket_traits_win32::accept()
/*------------------------------------------------------------------------*/
/**
* \brief Tell if a descriptor is a valid socket descriptor.
* \param d The descriptor to test.
*/
static bool valid_descriptor( descriptor d )
{
return d != invalid_socket;
} // socket_traits_win32::valid_descriptor()
/*------------------------------------------------------------------------*/
/**
* \brief Tell if a descriptor is a opened socket.
* \param d The descriptor to test.
*/
static bool is_open( descriptor d )
{
return valid_descriptor(d);
} // socket_traits_win32::is_open()
}; // class socket_traits_win32
typedef socket_traits_win32 socket_traits;
} // namespace claw
#endif // __CLAW_SOCKET_TRAITS_WIN32_HPP__
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