在做UDP通信的过程中,服务器端绑定IP和PORT:
m_stLocalAddr.sin_family = AF_INET;
m_stLocalAddr.sin_addr.s_addr = htonl(INADDR_ANY);
m_stLocalAddr.sin_port = htons( 6000);
m_hSocket = socket( PF_INET, SOCK_DGRAM, 0 );
if (SOCKET_ERROR == bind (m_hSocket, (struct sockaddr *)(&m_stLocalAddr), sizeof (m_stLocalAddr)))
return FALSE;
发送数据:
SOCKADDR_IN m_stServiceAddr;
m_stServiceAddr.sin_family = AF_INET;
m_stServiceAddr.sin_port = htons( 6000 );
long nIP = inet_addr("192.168.1.1");
m_stServiceAddr.sin_addr.S_un.S_addr = htonl(nIP);
接收数据
nBufLen = recvfrom( m_hSocket, (char*)lpDataBuf, nBufLen, 0, (struct sockaddr*)(&stRemoteAddr), &addr_size );
结果总是返回-1,socket错误为10054,
其实是自己的错误,
m_stServiceAddr.sin_addr.S_un.S_addr = htonl(nIP);
应该为
m_stServiceAddr.sin_addr.S_un.S_addr = nIP;
不细心啊!