Hi, im trying to find out information on how to connect to and use socks 4/5 servers. Ive got the RFC for socks 5, but its not clear how you actually use the socks server to do something useful once it has conneced. For example, how do you tell the socks server which server to connect to? and which port? and the type of conenction you want. Can anyone provide places where i can find this information? thanks

its all in the docs..

example:
Connect to the socks server
...
if you want to support non passworded and passworded socks send this handshake:

//Send Handshake
char buf[255];
int bytesRead;
buf[0]=0x05; //version
buf[1]=0x02; //number of methods
buf[2]=0x00; //method (no auth required)
buf[3]=0x02; //method (username/password)

then read the reply (2 bytes) and check which method the socks requires..

hmm.. ill just give u the dam code from my class :sigh: u should be able to work out whats going on

ConnectReturn  Win_TCPSocket::ConnectSocks( const char *pszHost, int nPort, const char *pszSocksHost, int nSocksPort, const char *pszUsername, const char *pszPassword ){	unsigned long ulAddr = 0;	//get ip address for SOCKS server	hostent *pEnt = ::gethostbyname( pszSocksHost );	SOCKADDR_IN addrSocks;	if( pEnt == 0 )	{		ulAddr = ::inet_addr( pszSocksHost );		if( ulAddr == INADDR_NONE )		{			return Connect_BadAddress;		}		else		{			addrSocks.sin_family = AF_INET;		}	}	else	{		memcpy( &ulAddr, pEnt->h_addr_list[0], sizeof( long ) );		addrSocks.sin_family = pEnt->h_addrtype;	}	addrSocks.sin_addr.s_addr = ulAddr;	addrSocks.sin_port = ::htons( nSocksPort );	memset( addrSocks.sin_zero, 0, sizeof( addrSocks.sin_zero ) );//SOCKS 5 Connect	//Connect to socks server	if( ::connect( m_hSocket, (const sockaddr *)&addrSocks, sizeof( SOCKADDR_IN ) ) == SOCKET_ERROR )	{		return Connect_ErrorConnecting;	}	//Send Handshake	char	buf[255];	int		bytesRead;	buf[0]=0x05; //version	buf[1]=0x02; //number of methods	buf[2]=0x00; //method (no auth required)	buf[3]=0x02; //method (username/password)	if( this->Send( buf, 4 ) != 4)	{		this->Close();		return Connect_ErrorComSocks;	}		//check accepted method	this->Recv( buf, 2, bytesRead, 0, true );	switch( buf[1] )	{		case 0x00: //No Auth			break;		case 0x02: //Username/Password		{			if( pszUsername == NULL || pszPassword == NULL )			{				this->Close();				return Connect_ReqUnPw;			}			//send username and password info			buf[0]=0x01; //username/password version			buf[1]=strlen(pszUsername); //UName Length			memcpy( &buf[2], pszUsername, buf[1] ); //UName			buf[2+buf[1]]=strlen(pszPassword); //PWord Length			memcpy( &buf[3+buf[1]], pszPassword, buf[2+buf[1]] ); //PWord			if( this->Send( buf, 2+buf[1]+1+buf[2+buf[1]] ) != 2+buf[1]+1+buf[2+buf[1]])			{				this->Close();				return Connect_ErrorComSocks;			}			//check accepted un/pw			this->Recv( buf, 2, bytesRead, 0, true );			switch( buf[1] )			{				case 0x00: //OK					break;				default: //not accepted				{					this->Close();					return Connect_BadUnPw;				}			}			break;		}		default: //non excepted		{			this->Close();			return Connect_SocksNotSupport;		}	}	//Send connect request	buf[0]=0x05; //version	buf[1]=0x01; //Connect command	buf[2]=0x00; //Reserved	//try and get address if its a dotted ip address	ulAddr = ::inet_addr( pszHost );	u_short port = ::htons( nPort );	if( ulAddr != INADDR_NONE )	{		//send the ip		buf[3]=0x01; //Address Type (IP4)		memcpy( &buf[4], &ulAddr, 4 ); //IP Address		memcpy( &buf[8], &port, 2 ); //Port		if( this->Send( buf, 10 ) != 10)		{			this->Close();			return Connect_ErrorComSocks;		}	}else	{		//just send the hostname then		buf[3]=0x03; //Address Type (HOSTNAME)		buf[4]=strlen(pszHost);		memcpy( &buf[5], pszHost, buf[4] ); //HOSTNAME		memcpy( &buf[5+buf[4]], &port, 2 ); //Port		if( this->Send( buf, 7+buf[4] ) != 7+buf[4])		{			this->Close();			return Connect_ErrorComSocks;		}	}		//check reply	this->Recv( buf, 4, bytesRead, 0, true );	switch( buf[1] )	{		case 0x00: //Success		{			if( buf[3] == 0x01 ) //IP Address			{				this->Recv( &buf[4], 6, bytesRead, 0, true );			}else			if( buf[3] == 0x03 ) //Domain Name			{				//size				this->Recv( &buf[4], 1, bytesRead, 0, true );				//string and port				this->Recv( &buf[5], buf[4]+2, bytesRead, 0, true );			}else			{				this->Close();				return Connect_ErrorComSocks;			}			break;		}		case 0x01:			this->Close();			return 	Connect_Socks_Fail;		case 0x02:			this->Close();			return 	Connect_Socks_Fail_Ruleset;		case 0x03:			this->Close();			return 	Connect_Socks_NetworkUnreach;		case 0x04:			this->Close();			return 	Connect_Socks_HostUnreach;		case 0x05:			this->Close();			return 	Connect_Socks_ConnRefused;		case 0x06:			this->Close();			return 	Connect_Socks_TTLExpired;		case 0x07:			this->Close();			return 	Connect_Socks_ComNotSupport;		case 0x08:			this->Close();			return 	Connect_Socks_AddrTypeNotSupport;		default: //Failure		{			this->Close();			return Connect_ErrorConnectingViaSocks;		}	}	m_connected = true;	return Connect_OK;}

after your connected you can use the socket as if directly connected