www.pudn.com > Whois_demo.zip > WhoIsClass.cpp

//	WhoIsClass.cpp 
 
// 
//	Module : WhoIsClass.cpp 
//	Purpose: Performs WHOIS processing for web addresses and host names 
// 
// 
//	Created: Ed Dixon  2/22/00 
//	History: Version 1.0 
//	 
//	Copyright (c) 2000 by Ed Dixon.   
//	All rights reserved. 
// 
// 
 
 
//	Inlcude used based on how code is integrated 
//#include "WhoIsClass.h" 
 
 
 
CWhoIsClass::CWhoIsClass() 
{ 
//	Init variables 
	m_iWhoIsPort = IPPORT_WHOIS;						//	defined in WINSOCK.H 
	m_szWhoIsServer = "whois.internic.net";				//	Default server 
	m_szWhoIsServerIP = GetIpFromHost(m_szWhoIsServer);	//	IP for default server 
} 
 
 
CWhoIsClass::~CWhoIsClass() 
{ 
} 
 
 
void CWhoIsClass::SetWhoIsServer(LPCSTR szServerName) 
{ 
//	Set new server and associated IP address 
	m_szWhoIsServer = szServerName; 
	m_szWhoIsServerIP = GetIpFromHost(szServerName); 
} 
 
 
CString CWhoIsClass::WhoIs(LPCSTR szAddress) 
{ 
	char	szQuery[512]; 
	char	szBuffer[128]; 
	CString szResult = ""; 
 
//	Set query string 
	strcpy(szQuery, szAddress); 
	strcat(szQuery, " \r\n"); 
 
//	Create socket 
	CSocket socket; 
	socket.Create(); 
 
//	Connect to server 
	int iResult = socket.Connect(m_szWhoIsServerIP, IPPORT_WHOIS); 
 
//	Quit on error 
	if (iResult <= 0) 
		return szResult; 
 
//	Send whois query 
	iResult = socket.Send(szQuery, strlen(szQuery)); 
 
//	Quit on error 
	if (iResult <= 0) 
		return szResult; 
 
//	Get result 
	szResult = ""; 
	while (TRUE) 
	{ 
	//	Clear buffer before each iteration 
		memset(szBuffer, 0, 128); 
 
	//	Try to receive some data 
		iResult = socket.Receive(szBuffer, 100); 
 
	//	Quit if no more data 
		if (iResult <= 0) 
			break; 
 
	//	Add this data to the result string 
		szResult += szBuffer; 
	} 
 
//	Close socket 
	socket.Close(); 
 
//	Return result 
	return szResult; 
} 
 
 
CString CWhoIsClass::GetIpFromHost(LPCSTR szHostName) 
{ 
	int i,j; 
	CString szResult = ""; 
 
//	Convert host name to IP address 
 	hostent* pHost = gethostbyname(szHostName); 
 
	for(i = 0; pHost!= NULL && pHost->h_addr_list[i]!= NULL; i++) 
 	{  
 		for(j = 0; j < pHost->h_length; j++) 
 		{ 
			CString addr; 
  
 			if(j > 0) 
 				szResult += "."; 
  
 			addr.Format("%u", (unsigned int)((unsigned char*)pHost->h_addr_list[i])[j]); 
			szResult += addr; 
 		} 
 	} 
 
	return szResult; 
}