JR,

Like many lookup functions, the alias_db_lookup() function has a return value.  You should check it for a negative result before proceeding further in the script:

Example:

  if(!alias_db_lookup("dbaliases")) {
          sl_send_reply("404", "Not Found");
          exit;
  }

Error handling in general is a must.

-- Alex

JR Richardson wrote:

Hi All,
 I have a real simple load balancer proxy setup using the dispatcher module, works great.  I want to do an alias lookup before I send the calls through to the dispatcher, but I can't seem to find a good example of how that should be setup in the config script.  I've tried different things, the aliase_db_lookup is working but if a user is not in the database, the call loops and does not continue on to the dispatcher.  Here is my current route script (this does not work):
 route{
       # initial sanity checks -- messages with
       # max_forwards==0, or excessively long requests                      if (!mf_process_maxfwd_header("10")) {
               sl_send_reply("483","Too Many Hops");
               exit;
       };
       if (msg:len >=  2048 ) {
               sl_send_reply("513", "Message too big");
               exit;
       };

       alias_db_lookup("dbaliases");
       t_on_failure("1");
       t_relay();
         ds_select_dst("1", "4");
       t_on_failure("1");
       t_relay();
}

failure_route[1] {
       ds_next_dst();
       forward();
       }
I think there should be an 'if' 'then' or 'if' 'else' separating the alias_db_lookup and the ds_select functions, but I'm not sure of the syntax and where the curly brackets need to be.
 Thanks.
 JR
--
JR Richardson
Engineering for the Masses

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Evariste Systems
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