www.pudn.com > Ibrar-Telnet.zip > SocketDx.cpp

// SocketDx.cpp: implementation of the CSocketDx class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#include "stdafx.h" 
#include "Telnet.h" 
#include "Telnet.h" 
#include "SocketDx.h" 
 
#ifdef _DEBUG 
#undef THIS_FILE 
static char THIS_FILE[]=__FILE__; 
#define new DEBUG_NEW 
#endif 
 
////////////////////////////////////////////////////////////////////// 
// Construction/Destruction 
////////////////////////////////////////////////////////////////////// 
 
CSocketDx::CSocketDx(char *strIP,int nPort) 
{ 
unsigned long ip; 
 
  if((*strIP <= '9') && (*strIP >= '0')) 
  { 
     if((ip = inet_addr(strIP)) == INADDR_NONE) 
       printf("invalid host ip given"); 
  } 
  else 
  { 
    hostent* ent = gethostbyname(strIP); 
    if(!ent) printf("\nError\n"); 
    ip = *(unsigned long*)(ent->h_addr); 
  } 
 
	m_sockaddr_in.sin_family = AF_INET; 
	m_sockaddr_in.sin_port = htons(nPort); 
	m_sockaddr_in.sin_addr = *(in_addr*)&ip; 
} 
CSocketDx::~CSocketDx() 
{ 
 
} 
int CSocketDx::Create() 
{ 
  m_hSocket = socket(PF_INET,SOCK_STREAM,IPPROTO_TCP); 
  if ( m_hSocket == INVALID_SOCKET) return -1; 
  return 0; 
} 
int CSocketDx::Connect() 
{ 
int nRet; 
 
  nRet = connect(m_hSocket,(sockaddr*)&m_sockaddr_in,sizeof(sockaddr)); 
  if ( nRet == SOCKET_ERROR ) return -1; 
  return 0; 
} 
SOCKET CSocketDx::TelnetConnect() 
{ 
int nRet; 
	 
	nRet = Create(); 
	if ( nRet < 0 ) return NULL; 
 
	nRet = Connect(); 
	if ( nRet < 0 ) return NULL; 
 
	return m_hSocket; 
}