Don't default the incoming port to 6881 but rather use 0 to indicate a less than valid announce

ot_http.c

@@ -312,7 +312,7 @@ static ssize_t http_handle_announce( const int64 sock, struct ot_workstruct *ws,
   int               numwant, tmp, scanon;
   ot_peer           peer;
   ot_hash          *hash = NULL;
-  unsigned short    port = htons(6881);
+  unsigned short    port = 0;
   char             *write_ptr;
   ssize_t           len;
   struct http_data *cookie = io_getcookie( sock );
@@ -506,4 +506,4 @@ ssize_t http_handle_request( const int64 sock, struct ot_workstruct *ws ) {
   return ws->reply_size;
 }
 
-const char *g_version_http_c = "$Source: /home/cvsroot/opentracker/ot_http.c,v $: $Revision: 1.38 $\n";
+const char *g_version_http_c = "$Source: /home/cvsroot/opentracker/ot_http.c,v $: $Revision: 1.39 $\n";