Sockets program adding characters?

Eric,

Thanks for your reply. There's no End of Record, but the first ten bytes of the reply contains the length of the rest of the reply. So I can continue receiving until I reach the reply length. It should be no problem to code it to do that.

First though I have to get it to send me a valid reply, which I believe means getting through those invalid characters.

I noticed that my last message to this group, the e-mail changed the weird characters to question marks.

The message from the server:

02/Mar/2011:09:17:15:609 -0500;4364;9;DICom.cpp;InOutProc;INFO;Server could not send data on the socket;ERRCODE|001000011|ERRMSG|Validation of message failed : ????????????O0000000151RATE|

Those question marks on the actual server look like foreign characters. ("O"s with accents or two dots over them.)
The characters aren't in the variable that I send in, as far as I can tell... But the server on the other side is seeing them.

Oddly, the server isn't even sending me ERRCODE|001000011|ERRMSG| which is what I'd expect as a reply if that was the main problem. The server is sending me a short string of zeros, 00000000 as my entire reply.

Thanks again,
Charlie

RE: Sockets program adding characters?


Charles,

Your RecvAscii should loop over recv() until you have a complete message. All the parts may not make it across the >network at the same time, so your receiver must be patient.

Do you have some sort of EndOfRecord that you can watch for? Simplest approach here is to receive one byte at a >time, append it to your "receive buffer" while watching for your end of record character...

Hth,
-Eric DeLong