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/cdefs.h> 33 #include <sys/types.h> 34 #include <sys/time.h> 35 #include <sys/socket.h> 36 #include <netinet/in.h> 37 #include <arpa/inet.h> 38 #include <protocols/talkd.h> 39 #include <curses.h> 40 #include <signal.h> 41 42 extern int sockt; 43 extern int curses_initialized; 44 extern int invitation_waiting; 45 46 extern const char *current_state; 47 extern int current_line; 48 49 extern volatile sig_atomic_t gotwinch; 50 51 typedef struct xwin { 52 WINDOW *x_win; 53 int x_nlines; 54 int x_ncols; 55 int x_line; 56 int x_col; 57 char kill; 58 char cerase; 59 char werase; 60 } xwin_t; 61 62 extern xwin_t my_win; 63 extern xwin_t his_win; 64 extern WINDOW *line_win; 65 66 extern void announce_invite(void); 67 extern int check_local(void); 68 extern void check_writeable(void); 69 extern void ctl_transact(struct in_addr,CTL_MSG,int,CTL_RESPONSE *); 70 extern void disp_msg(int); 71 extern void end_msgs(void); 72 extern void get_addrs(const char *, const char *); 73 extern int get_iface(struct in_addr *, struct in_addr *); 74 extern void get_names(int, char **); 75 extern void init_display(void); 76 extern void invite_remote(void); 77 extern int look_for_invite(CTL_RESPONSE *); 78 extern int max(int, int); 79 extern void message(const char *); 80 extern void open_ctl(void); 81 extern void open_sockt(void); 82 extern void p_error(const char *); 83 extern void print_addr(struct sockaddr_in); 84 extern void quit(void); 85 extern int readwin(WINDOW *, int, int); 86 extern void re_invite(int); 87 extern void send_delete(void); 88 extern void set_edit_chars(void); 89 extern void sig_sent(int); 90 extern void sig_winch(int); 91 extern void start_msgs(void); 92 extern void talk(void); 93 extern void resize_display(void); 94