PSET6 - No Data Received AND No Errors

Question

This is the very last thing I seem to have to fix here. Telnet and GDB are returning no errors, but when I try to use my server.c in Chrome, I don't get the requested page. Instead, I get an error on Chrome that says, "No data received; ERR_EMPTY_RESPONSE; Unable to load the webpage because the server sent no data."

I have no idea what could be causing this, so I don't know what to include as far as code. Telnet is telling me that the Content-Length is -1, if that helps at all.

I've seen few others with this problem. Any solutions?

EDIT - respond to client

// TODO: respond to client
        printf("HTTP/1.1 200 OK\r\n");
        printf("Connection: close\r\n");
        printf("Content-Length: %i\r\n", load());
        printf("Content-Type: %s\r\n", lookup(extension));

Answer 1

Try mimicking what the distribution code used to generate the responses for the error messages and dynamic content:

if (dprintf(cfd, "HTTP/1.1 200 OK\r\n") < 0)
{
     continue;
}

// respond with Connection header
if (dprintf(cfd, "Connection: close\r\n") < 0)
{
    return false;
}

// respond with Content-Length header
if (dprintf(cfd, "Content-Length: %i\r\n", length) < 0)
{
    return false;
}

// respond with Content-Type header
if (dprintf(cfd, "Content-Type: text/html\r\n") < 0)
{
    return false;
}

// respond with CRLF
if (dprintf(cfd, "\r\n") < 0)
{
    return false;
}

if (write(cfd, body, size) == -1)
{
     continue;
}

You'll have to update the content-type to be dynamic, reflecting the variable type.