xref: /dragonfly/usr.bin/w/pr_time.c (revision 0ca59c34)
1 /*-
2  * Copyright (c) 1990, 1993, 1994
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  * 3. 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  * @(#)pr_time.c	8.2 (Berkeley) 4/4/94
30  * $FreeBSD: src/usr.bin/w/pr_time.c,v 1.14.2.1 2002/03/12 19:51:51 phantom Exp $
31  * $DragonFly: src/usr.bin/w/pr_time.c,v 1.3 2003/10/04 20:36:54 hmp Exp $
32  */
33 
34 #include <sys/types.h>
35 #include <sys/time.h>
36 
37 #include <stdio.h>
38 #include <string.h>
39 
40 #include "extern.h"
41 
42 /*
43  * pr_attime --
44  *	Print the time since the user logged in.
45  */
46 void
47 pr_attime(time_t *started, time_t *now)
48 {
49 	static char buf[256];
50 	struct tm tp, tm;
51 	time_t diff;
52 	char fmt[20];
53 
54 	tp = *localtime(started);
55 	tm = *localtime(now);
56 	diff = *now - *started;
57 
58 	/* If more than a week, use day-month-year. */
59 	if (diff > 86400 * 7)
60 		(void)strcpy(fmt, "%d%b%y");
61 
62 	/* If not today, use day-hour-am/pm. */
63 	else if (tm.tm_mday != tp.tm_mday ||
64 		 tm.tm_mon != tp.tm_mon ||
65 		 tm.tm_year != tp.tm_year) {
66 	/* The line below does not take DST into consideration */
67 	/* else if (*now / 86400 != *started / 86400) { */
68 		(void)strcpy(fmt, use_ampm ? "%a%I%p" : "%a%H");
69 	}
70 
71 	/* Default is hh:mm{am,pm}. */
72 	else {
73 		(void)strcpy(fmt, use_ampm ? "%l:%M%p" : "%k:%M");
74 	}
75 
76 	(void)strftime(buf, sizeof(buf), fmt, &tp);
77 	(void)printf("%-7.7s", buf);
78 }
79 
80 /*
81  * pr_idle --
82  *	Display the idle time.
83  *	Returns number of excess characters that were used for long idle time.
84  */
85 int
86 pr_idle(time_t idle)
87 {
88 	/* If idle more than 36 hours, print as a number of days. */
89 	if (idle >= 36 * 3600) {
90 		int days = idle / 86400;
91 		(void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
92 		if (days >= 100)
93 			return (2);
94 		if (days >= 10)
95 			return (1);
96 	}
97 
98 	/* If idle more than an hour, print as HH:MM. */
99 	else if (idle >= 3600)
100 		(void)printf(" %2d:%02d ",
101 		    (int)(idle / 3600), (int)((idle % 3600) / 60));
102 
103 	else if (idle / 60 == 0)
104 		(void)printf("     - ");
105 
106 	/* Else print the minutes idle. */
107 	else
108 		(void)printf("    %2d ", (int)(idle / 60));
109 
110 	return (0); /* not idle longer than 9 days */
111 }
112