1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1983, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/types.h>
33#include <sys/time.h>
34#include <sys/socket.h>
35#include <netinet/in.h>
36#include <arpa/inet.h>
37#include <protocols/talkd.h>
38#include <curses.h>
39#include <signal.h>
40
41extern	int sockt;
42extern	int curses_initialized;
43extern	int invitation_waiting;
44
45extern	const char *current_state;
46extern	int current_line;
47
48extern volatile sig_atomic_t gotwinch;
49
50typedef struct xwin {
51	WINDOW	*x_win;
52	int	x_nlines;
53	int	x_ncols;
54	int	x_line;
55	int	x_col;
56	char	kill;
57	char	cerase;
58	char	werase;
59} xwin_t;
60
61extern	xwin_t my_win;
62extern	xwin_t his_win;
63extern	WINDOW *line_win;
64
65extern	void	announce_invite(void);
66extern	int	check_local(void);
67extern	void	check_writeable(void);
68extern	void	ctl_transact(struct in_addr,CTL_MSG,int,CTL_RESPONSE *);
69extern	void	disp_msg(int);
70extern	void	end_msgs(void);
71extern	void	get_addrs(const char *, const char *);
72extern	int	get_iface(struct in_addr *, struct in_addr *);
73extern	void	get_names(int, char **);
74extern	void	init_display(void);
75extern	void	invite_remote(void);
76extern	int	look_for_invite(CTL_RESPONSE *);
77extern	int	max(int, int);
78extern	void	message(const char *);
79extern	void	open_ctl(void);
80extern	void	open_sockt(void);
81extern	void	p_error(const char *);
82extern	void	print_addr(struct sockaddr_in);
83extern	void	quit(void);
84extern	int	readwin(WINDOW *, int, int);
85extern	void	re_invite(int);
86extern	void	send_delete(void);
87extern	void	set_edit_chars(void);
88extern	void	sig_sent(int);
89extern	void	sig_winch(int);
90extern	void	start_msgs(void);
91extern	void	talk(void);
92extern	void	resize_display(void);
93