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 33 34 /* 35 * A package to display what is happening every MSG_INTERVAL seconds 36 * if we are slow connecting. 37 */ 38 39 #include <signal.h> 40 41 #include "talk.h" 42 43 #define MSG_INTERVAL 4 44 45 const char *current_state; 46 int current_line = 0; 47 48 /* ARGSUSED */ 49 void 50 disp_msg(int signo __unused) 51 { 52 message(current_state); 53 } 54 55 void 56 start_msgs(void) 57 { 58 struct itimerval itimer; 59 60 message(current_state); 61 signal(SIGALRM, disp_msg); 62 itimer.it_value.tv_sec = itimer.it_interval.tv_sec = MSG_INTERVAL; 63 itimer.it_value.tv_usec = itimer.it_interval.tv_usec = 0; 64 setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0); 65 } 66 67 void 68 end_msgs(void) 69 { 70 struct itimerval itimer; 71 72 timerclear(&itimer.it_value); 73 timerclear(&itimer.it_interval); 74 setitimer(ITIMER_REAL, &itimer, (struct itimerval *)0); 75 signal(SIGALRM, SIG_DFL); 76 } 77