LeCroy LSA1000, Руководство оператора, Страница: 75 / 115

B – 2
Appendix B
unsigned long argp;
if (sConnectedFlag==TRUE)
return -1;
strcpy(sCurrentAddress, ip_address);
tval.tv_sec = sTimeout;
tval.tv_usec = 0;
if (!sWinsockInitFlag)
{
wVersionRequested = MAKEWORD(1, 1);
if (WSAStartup(wVersionRequested, &wsaData) != 0)
{
MessageBox(0, "Unable to initialize the Windows socket environment.", "ERROR", MB_OK);
return -1;
}
sWinsockInitFlag = TRUE;
}
/* build server socket address */
serverAddr.sin_family = AF_INET;
serverAddr.sin_port = htons (SERVER_PORT);
if ((serverAddr.sin_addr.s_addr = inet_addr(ip_address)) == -1)
{
MessageBox(0, "Bad server address", "ERROR", MB_OK);
return -1;
}
/* create client's socket */
if ((hSocket = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
MessageBox(0, "Unable to create client's socket.", "ERROR", MB_OK);
return -1;
}
if (setsockopt(hSocket, IPPROTO_TCP, TCP_NODELAY, (char*)&resp, sizeof(resp)) != 0)
{
MessageBox(0, "Unable to set socket option to TCP_NODELAY", "ERROR",
MB_OK);
return -1;
}
wr_set.fd_array[0] = hSocket;