/*
功能：客户端函数，发起TCP连接
参数：
lpszHostAddress LPCTSTR [In] 对方Ip地址或域名
nHostPort UINT [In] 对方监听的端口
返回值：成功返回TRUE,失败返回FALSE
*/
bool Socket::Connect( const char *lpszHostAddress, unsigned short nHostPort, long lSecond )
{
if ( NULL == lpszHostAddress ) return false;
//将域名转换为真实IP，如果lpszHostAddress本来就是ip，不影响转换结果
char ip[64]; //真实IP
#ifdef WIN32
PHOSTENT hostinfo;
#else
struct hostent * hostinfo;
#endif
strcpy( ip, lpszHostAddress );
if((hostinfo = gethostbyname(lpszHostAddress)) != NULL)
{
strcpy( ip, inet_ntoa (*(struct in_addr *)*hostinfo->h_addr_list) );
}
//使用真实ip进行连接
sockaddr_in sockAddr;
memset(&sockAddr,0,sizeof(sockAddr));
sockAddr.sin_family = AF_INET;
sockAddr.sin_addr.s_addr = inet_addr(ip);
sockAddr.sin_port = htons( nHostPort );
SetSendTimeout(lSecond, 0);
if ( SOCKET_ERROR != connect(m_hSocket, (sockaddr*)&sockAddr, sizeof(sockAddr)) )
{
SetSendTimeout(0, 0);
InitPeerAddress();
InitLocalAddress();
return true;
}
SetSendTimeout(0, 0);
return false;
}
/*
功能：绑定一个socket句柄，让该类对象在这个句柄上进行操作
逻辑：
傻瓜式绑定，不管类对象之前是否已经绑定了其它套接字，首先会调用傻瓜式函数close关闭连接，然后在绑定新的套接字，
如果没有实现调用Detach解除旧绑定，那么旧的绑定sock将丢失
参数：
hSocket SOCKET [In] 要绑定sock句柄
*/
void Socket::Attach(SOCKET hSocket)
{
m_hSocket = hSocket;
m_bBlock = true;
m_bOpened = true;//未打开状态
InitPeerAddress();
InitLocalAddress();
}
void Socket::Attach(SOCKET hSocket)
{
m_hSocket = hSocket;
m_bIsBlock = true;
m_bIsOpen = true;
InitPeerAddress();
InitLocalAddress();
}
Socket::Socket( SOCKET hSocket, protocol nProtocolType )
{
m_hSocket = hSocket;
m_bBlock = true;
m_bOpened = false;//未打开状态
Init(nProtocolType);
InitPeerAddress();
InitLocalAddress();
}
Socket::Socket(SOCKET s, int proType)
{
m_hSocket = s;
m_bIsBlock = true;
m_bIsOpen = false;
Init(proType);
InitPeerAddress();
InitLocalAddress();
}
/*
功能：客户端函数，发起TCP连接
参数：
lpszHostAddress LPCTSTR [In] 对方Ip地址
nHostPort UINT [In] 对方监听的端口
返回值：成功返回TRUE,失败返回FALSE
*/
bool Socket::Connect( const char *lpszHostAddress, unsigned short nHostPort)
{
assert( NULL != lpszHostAddress );
sockaddr_in sockAddr;
memset(&sockAddr,0,sizeof(sockAddr));
sockAddr.sin_family = AF_INET;
sockAddr.sin_addr.s_addr = inet_addr(lpszHostAddress);
sockAddr.sin_port = htons( nHostPort );
if ( SOCKET_ERROR != connect(m_hSocket, (sockaddr*)&sockAddr, sizeof(sockAddr)) )
{
InitPeerAddress();
InitLocalAddress();
return true;
}
return false;
}
