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Communicate with a Windows 2000 server via Socket connection

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QUESTION POSED ON: 24 January 2005
I'm trying to communicate with a Windows 2000 server via Socket connection. I am able to connect, but when it comes to writing a record to the Socket, the person never see it and when I read for a response the connecton hangs for a long time, but I eventually get the message that I was disconnected by the remote Socket. Here is my code:
C Eval sd=socket(AF_INET: SOCK_STREAM: 0) * ------------ 15 data records excluded ------------------------------ C Eval serveraddr=*allx'00' C Eval sin_family=AF_INET C Move W1ServPortx Servport C Move W1ServAddrx ServerParm C Eval sin_port=SERVPORT C Eval SERVERParm=%trim(SERVERParm) + x'00' C Eval sin_addr = inet_addr(ServerParm) ------------ 26 data records excluded ------------------------------ C Eval rc=connect(sd: C %addr(serveraddr): C %size(serveraddr)) ------------ 43 data records excluded ------------------------------ C Eval rc=send(sd: %addr(SocketData) C :SockDtaLen:0) ------------ 11 data records excluded ---------------------- C Eval rc=recv(sd: %addr(SocketData): C SockDtaLen:0)

Any guidance is appreciated.

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Your code looks OK, however, some things need to be checked.

1. What is the return code from the send API? The return code should be the length of the data you sent.

2. Did you translate the EBCDIC string to ASCII before sending? If data was sent in EBCDIC it can make problems to the windows program that will get the "strange character."

3. Did you make sure that the sockdtalen is correct? sockdtalen is the length of structure you sent.

4. It is not surprising that the receive is blocked because the remote windows program probably did not send data to you.

5. Please note that some of the problems may be the remote program "fault", try to test the remote program by using one of the socket tools available.

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