/* $Copyright:	$
 * Copyright (c) 1984, 1985, 1986, 1987, 1988, 1989, 1990 
 * Sequent Computer Systems, Inc.   All rights reserved.
 *  
 * This software is furnished under a license and may be used
 * only in accordance with the terms of that license and with the
 * inclusion of the above copyright notice.   This software may not
 * be provided or otherwise made available to, or used by, any
 * other person.  No title to or ownership of the software is
 * hereby transferred.
 */

/* $Header: ctl.h 2.0 86/01/28 $ */

/* ctl.h describes the structure that talk and talkd pass back
   and forth
 */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

#define NAME_SIZE 9
#define TTY_SIZE 16
#define HOST_NAME_LENGTH 256

#define MAX_LIFE 60 /* maximum time an invitation is saved by the
			 talk daemons */
#define RING_WAIT 30  /* time to wait before refreshing invitation 
			 should be 10's of seconds less than MAX_LIFE */

    /* the values for type */

#define LEAVE_INVITE 0
#define LOOK_UP 1
#define DELETE 2
#define ANNOUNCE 3

    /* the values for answer */

#define SUCCESS 0
#define NOT_HERE 1
#define FAILED 2
#define MACHINE_UNKNOWN 3
#define PERMISSION_DENIED 4
#define UNKNOWN_REQUEST 5

typedef struct ctl_response CTL_RESPONSE;

struct ctl_response {
    char type;
    char answer;
    int id_num;
    struct sockaddr_in addr;
};

typedef struct ctl_msg CTL_MSG;

struct ctl_msg {
    char type;
    char l_name[NAME_SIZE];
    char r_name[NAME_SIZE];
    int id_num;
    int pid;
    char r_tty[TTY_SIZE];
    struct sockaddr_in addr;
    struct sockaddr_in ctl_addr;
};
