1 /*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31
32 __FBSDID("$FreeBSD: stable/10/usr.bin/talk/msgs.c 216370 2010-12-11 08:32:16Z joel $");
33
34 #ifndef lint
35 static const char sccsid[] = "@(#)msgs.c 8.1 (Berkeley) 6/6/93";
36 #endif
37
38 /*
39 * A package to display what is happening every MSG_INTERVAL seconds
40 * if we are slow connecting.
41 */
42
43 #include <signal.h>
44
45 #include "talk.h"
46
47 #define MSG_INTERVAL 4
48
49 const char *current_state;
50 int current_line = 0;
51
52 /* ARGSUSED */
53 void
disp_msg(int signo __unused)54 disp_msg(int signo __unused)
55 {
56 message(current_state);
57 }
58
59 void
start_msgs(void)60 start_msgs(void)
61 {
62 struct itimerval itimer;
63
64 message(current_state);
65 signal(SIGALRM, disp_msg);
66 itimer.it_value.tv_sec = itimer.it_interval.tv_sec = MSG_INTERVAL;
67 itimer.it_value.tv_usec = itimer.it_interval.tv_usec = 0;
68 setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
69 }
70
71 void
end_msgs(void)72 end_msgs(void)
73 {
74 struct itimerval itimer;
75
76 timerclear(&itimer.it_value);
77 timerclear(&itimer.it_interval);
78 setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0);
79 signal(SIGALRM, SIG_DFL);
80 }
81