xref: /dragonfly/usr.bin/w/pr_time.c (revision 17b61719)
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. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * @(#)pr_time.c	8.2 (Berkeley) 4/4/94
34  * $FreeBSD: src/usr.bin/w/pr_time.c,v 1.14.2.1 2002/03/12 19:51:51 phantom Exp $
35  * $DragonFly: src/usr.bin/w/pr_time.c,v 1.3 2003/10/04 20:36:54 hmp Exp $
36  */
37 
38 #include <sys/types.h>
39 #include <sys/time.h>
40 
41 #include <stdio.h>
42 #include <string.h>
43 
44 #include "extern.h"
45 
46 /*
47  * pr_attime --
48  *	Print the time since the user logged in.
49  */
50 void
51 pr_attime(time_t *started, time_t *now)
52 {
53 	static char buf[256];
54 	struct tm tp, tm;
55 	time_t diff;
56 	char fmt[20];
57 
58 	tp = *localtime(started);
59 	tm = *localtime(now);
60 	diff = *now - *started;
61 
62 	/* If more than a week, use day-month-year. */
63 	if (diff > 86400 * 7)
64 		(void)strcpy(fmt, "%d%b%y");
65 
66 	/* If not today, use day-hour-am/pm. */
67 	else if (tm.tm_mday != tp.tm_mday ||
68 		 tm.tm_mon != tp.tm_mon ||
69 		 tm.tm_year != tp.tm_year) {
70 	/* The line below does not take DST into consideration */
71 	/* else if (*now / 86400 != *started / 86400) { */
72 		(void)strcpy(fmt, use_ampm ? "%a%I%p" : "%a%H");
73 	}
74 
75 	/* Default is hh:mm{am,pm}. */
76 	else {
77 		(void)strcpy(fmt, use_ampm ? "%l:%M%p" : "%k:%M");
78 	}
79 
80 	(void)strftime(buf, sizeof(buf), fmt, &tp);
81 	(void)printf("%-7.7s", buf);
82 }
83 
84 /*
85  * pr_idle --
86  *	Display the idle time.
87  *	Returns number of excess characters that were used for long idle time.
88  */
89 int
90 pr_idle(time_t idle)
91 {
92 	/* If idle more than 36 hours, print as a number of days. */
93 	if (idle >= 36 * 3600) {
94 		int days = idle / 86400;
95 		(void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
96 		if (days >= 100)
97 			return (2);
98 		if (days >= 10)
99 			return (1);
100 	}
101 
102 	/* If idle more than an hour, print as HH:MM. */
103 	else if (idle >= 3600)
104 		(void)printf(" %2d:%02d ",
105 		    (int)(idle / 3600), (int)((idle % 3600) / 60));
106 
107 	else if (idle / 60 == 0)
108 		(void)printf("     - ");
109 
110 	/* Else print the minutes idle. */
111 	else
112 		(void)printf("    %2d ", (int)(idle / 60));
113 
114 	return (0); /* not idle longer than 9 days */
115 }
116