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| CString AddText(CEdit *Edit, const char *Text)
{
CString csTemp, csAdded(Text);
Edit->GetWindowText(csTemp);
csTemp += csAdded;
return csTemp;
}
void CConnectorDlg::OnConnect()
{
EGetDialog = (CEdit *)GetDlgItem(IDC_EDIALOG);
EGetDialog->SetWindowText("Connecting...");
CEdit *EGetHost = (CEdit *)GetDlgItem(IDC_EHOST);
CEdit *EGetPort = (CEdit *)GetDlgItem(IDC_EPORT);
try
{
WSADATA wsaData;
if(WSAStartup(MAKEWORD(2,2), &wsaData) != 0)
{
throw "cannot initiate use of ws2_32.dll !";
return;
}
CString csHost, csPort;
char Host[128], Port[10];
EGetHost->GetWindowText(csHost);
EGetPort->GetWindowText(csPort);
strcpy(Host, csHost.GetBuffer(0));
strcpy(Port, csPort.GetBuffer(0));
if(isalpha(Host[0]))
{
struct hostent *Resolv;
if((Resolv = gethostbyname(Host)) != 0)
{
memcpy(&(SockAddr.sin_addr), Resolv->h_addr, Resolv->h_length);
SockAddr.sin_family = AF_INET/*Resolv->h_addrtype*/;
}
else throw("cannot resolving host !");
}
if((Sock = socket(AF_INET, SOCK_STREAM, 0)) == -1)
throw "cannot create socket !";
SockAddr.sin_port = htons(atoi(Port));
if(connect(Sock, (struct sockaddr*)&SockAddr, sizeof(SockAddr)) == -1)
throw "failed to connect !";
EGetDialog->SetWindowText(AddText(EGetDialog, "OK"));
CreateThread(0, 0, (LPTHREAD_START_ROUTINE)ThreadRecv, 0, 0, 0);
}
catch(const char *ErrorMsg)
{
char Error[128];
sprintf(Error, " error (%s)", ErrorMsg);
EGetDialog->SetWindowText(AddText(EGetDialog, Error));
return;
}
catch(...)
{
EGetDialog->SetWindowText(AddText(EGetDialog, "error (unknow)"));
return;
}
}
void CConnectorDlg::OnDisconnect()
{
EGetDialog->SetWindowText("");
closesocket(Sock);
}
void CConnectorDlg::OnSend()
{
CString csMessage;
char Message_Send[256];
CEdit *EGetDialog = (CEdit *)GetDlgItem(IDC_EDIALOG);
CEdit *EGetMsg = (CEdit *)GetDlgItem(IDC_EREQUEST);
EGetMsg->GetWindowText(csMessage);
memset(Message_Send, 0, sizeof(Message_Send));
strcpy(Message_Send, csMessage.GetBuffer(0));
if(send(Sock, Message_Send, strlen(Message_Send), 0) == -1)
{
EGetDialog->SetWindowText("You're disconnected !");
return;
}
}
void ThreadRecv()
{
char Message_Recv[512];
fd_set SockRecv;
FD_ZERO(&SockRecv);
FD_SET(Sock, &SockRecv);
select(Sock + 1,&SockRecv, 0, 0, 0);
while(1)
{
if(FD_ISSET(Sock, &SockRecv))
{
memset(Message_Recv, 0, sizeof(Message_Recv));
recv(Sock, Message_Recv, sizeof(Message_Recv), 0);
CString csMessage(Message_Recv);
EGetDialog->SetWindowText(csMessage);
}
}
}
void CConnectorDlg::OnCancel()
{
closesocket(Sock);
WSACleanup();
CDialog::OnCancel();
} |
