xref: /netbsd-src/usr.bin/w/pr_time.c (revision d8cc1107df25947bfd07aa071a30bdfb9062161c)
1 /*	$NetBSD: pr_time.c,v 1.19 2021/04/17 06:14:15 maya Exp $	*/
2 
3 /*-
4  * Copyright (c) 1990, 1993, 1994
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 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)pr_time.c	8.2 (Berkeley) 4/4/94";
36 #else
37 __RCSID("$NetBSD: pr_time.c,v 1.19 2021/04/17 06:14:15 maya Exp $");
38 #endif
39 #endif /* not lint */
40 
41 #include <sys/types.h>
42 #include <sys/time.h>
43 
44 #include <stdio.h>
45 #include <string.h>
46 #include <time.h>
47 #include <tzfile.h>
48 
49 #include "extern.h"
50 
51 /*
52  * pr_attime --
53  *	Print the time since the user logged in.
54  */
55 void
pr_attime(time_t * started,time_t * now)56 pr_attime(time_t *started, time_t *now)
57 {
58 	static char buf[256];
59 	int tnow_yday;
60 	struct tm *tp;
61 	time_t diff;
62 
63 	tnow_yday = localtime(now)->tm_yday;
64 	tp = localtime(started);
65 	diff = *now - *started;
66 
67 	if (diff > SECSPERDAY * DAYSPERWEEK) {
68 		/* If more than a week, use day-month-year. */
69 		(void)strftime(buf, sizeof(buf), "%d%b%y", tp);
70 	} else if (tp->tm_yday != tnow_yday) {
71 		/* If not today, use day-hour-am/pm. */
72 		(void)strftime(buf, sizeof(buf), "%a%I%p", tp);
73 	} else {
74 		/* Default is hh:mm{am,pm}. */
75 		(void)strftime(buf, sizeof(buf), "%l:%M%p", tp);
76 	}
77 
78 	buf[sizeof(buf) - 1] = '\0';
79 	(void)fputs(buf, stdout);
80 }
81 
82 /*
83  * pr_idle --
84  *	Display the idle time.
85  */
86 void
pr_idle(time_t idle)87 pr_idle(time_t idle)
88 {
89 	int days;
90 
91 	if (idle == (time_t)-1) {
92 		(void)printf("     ? ");
93 		return;
94 	}
95 
96 	days = idle / SECSPERDAY;
97 
98 	/* If idle more than 36 hours, print as a number of days. */
99 	if (idle >= 48 * SECSPERHOUR)
100 		printf(" %ddays ", days);
101 	else if (idle >= 36 * SECSPERHOUR)
102 		printf("  1day ");
103 
104 	/* If idle more than an hour, print as HH:MM. */
105 	else if (idle >= SECSPERHOUR)
106 		(void)printf(" %2d:%02d ",
107 		    (int)(idle / SECSPERHOUR),
108 		    (int)((idle % SECSPERHOUR) / SECSPERMIN));
109 
110 	/* Else print the minutes idle. */
111 	else
112 		(void)printf("    %2d ", (int)(idle / SECSPERMIN));
113 }
114