Please Help Urgent Client send() recv() problem

Posted on 2003-03-18
Medium Priority
Last Modified: 2010-04-01
Question is changed a bit

Following is the code from my server program. As far as sending and receiving data is concerned, it does 'almost' right job. It does receive data without any problem from server side. However, when i send data from client to server, it sends it but it sends like 12 blank lines as well to the server. Can anyone tell me whats wrong?//

 memset(buffer, 0, sizeof(buffer));
memset(xbuffer, 0, sizeof(xbuffer));

unsigned long on = 1;
ioctlsocket(skt, FIONBIO, &on);

while (true)
       int bytesRead;
             bytesRead = recv(skt, xbuffer, sizeof(xbuffer), 0);

         if (0 == bytesRead)
              cout << "Socket closed on other side" << endl;
         else if(bytesRead >0)
             cout << "<" << xbuffer << endl;
                      //cout << xbuffer;

                    cin.getline(buffer, sizeof(buffer));
                    buffer[strlen(buffer)] = '\0';
                    send(skt, buffer, sizeof(buffer)+1, 0);
                    cout << endl;
Question by:azizs
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Accepted Solution

bsnh99 earned 500 total points
ID: 8163552
You're sending sizeof(buffer), but buffer only contains strlen(buffer) of valid data. Change the call to send to:

send(skt, buffer, strlen(buffer)+1, 0);

Expert Comment

ID: 8164558
yep, that's right, but it's ok if you do:
send(skt, buffer, strlen(buffer), 0); - send exactly the buffer size (without terminator '\0')

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