Swapresponse? What is it?

[Dez]

I received the program Bridge from comp.sources.unix. It was designed
to run on BSD4.3 and a couple of other machines. The program compiled well,
except for look_up.c. It would give me an error, which basically said, 
I don't understand "swapresponse". Does anyone know what this is, or have
the source? I included a part of look_up.c. 


Thanks.

Deryk

--------------------------look_up.c-------------------------------------
#ifndef lint
static	char sccsid[] = "@(#)look_up.c 1.1 86/02/05 SMI"; /* from UCB 1.2 83/03/28 */
#endif

#include "talk_ctl.h"

    /* see if the local daemon has a invitation for us */

CTL_RESPONSE swapresponse();

check_local()
{
    CTL_RESPONSE response;

	/* the rest of msg was set up in get_names */

    msg.ctl_addr = ctl_addr;

    if (!look_for_invite(&response)) {

	    /* we must be initiating a talk */

	return(0);
    }

        /*
	 * there was an invitation waiting for us, 
	 * so connect with the other (hopefully waiting) party 
	 */

    current_state = "Waiting to connect with caller";

    response = swapresponse(response);
    while (connect(sockt, &response.addr, sizeof(response.addr)) != 0) {


------------------------------etc.------------------------------------------
     +-------------------+         +        
  +--+----------------+  |   +     |     +  UUCP:
  |  |  Deryk Marien  |  |   |-----|-----|  decvax!unhd!psc90!derykm
  |  |                |  |   |-----|-----|   
  |  | (psc90!derykm) |  |   |-----|-----|  {uunet,dartvax}!psc90!derykm
  |  +----------------+--+   +     |     +
  +-------------------+            +        BITNET :  D_MARIEN at UNHH
==============================================================================