My Firefox client just hangs using the below : 
sub httpserv
{
   my $socket = shift;
   my $buf;
   while(defined($buf = <$socket>)) {
      # nothing
   }
   print $socket "HTTP/1.0 200 OK\n";
   print $socket "Cache-Control: no-cache \n";
   print $socket "Server: Apache/2.2.23(Fedora)\n";
   print $socket "Connection: close \n";
   print $socket "Content-Type: text/html; charset=UTF-8\n";
   print $socket "\n\n";         # Without this browser doesn't show H
+TML Content
   print $socket "<HTML><HEAD><TITLE>\n";
   print $socket "Got your message</TITLE></HEAD>\n";
   print $socket "<BODY>Got your message</BODY></HTML>\n";
   $socket->close();
}

[download]
But is superfast with the below code 
sub httpserv
{
   my $socket = shift;
   my $buf;
   while(defined($buf = <$socket>)) {
      last;                      # Without this it is like removing  a
+utoflush(1),
                                 # Without the "last;" the client conn
+ection hangs;
   }
   print $socket "HTTP/1.0 200 OK\n";
   print $socket "Cache-Control: no-cache \n";
   print $socket "Server: Apache/2.2.23(Fedora)\n";
   print $socket "Connection: close \n";
   print $socket "Content-Type: text/html; charset=UTF-8\n";
   print $socket "\n\n";         # Without this browser doesn't show H
+TML Content
   print $socket "<HTML><HEAD><TITLE>\n";
   print $socket "Got your message</TITLE></HEAD>\n";
   print $socket "<BODY>Got your message</BODY></HTML>\n";
   $socket->close();
}

[download]
Observe the last; in the while loop.

In reply to what's with last; by pengwn

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