xref: /freebsd/usr.bin/w/pr_time.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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 
34 #include <sys/cdefs.h>
35 
36 __FBSDID("$FreeBSD$");
37 
38 #ifndef lint
39 static const char sccsid[] = "@(#)pr_time.c	8.2 (Berkeley) 4/4/94";
40 #endif
41 
42 #include <sys/types.h>
43 #include <sys/time.h>
44 
45 #include <stdio.h>
46 #include <string.h>
47 
48 #include "extern.h"
49 
50 /*
51  * pr_attime --
52  *	Print the time since the user logged in.
53  */
54 void
55 pr_attime(time_t *started, time_t *now)
56 {
57 	static char buf[256];
58 	struct tm tp, tm;
59 	time_t diff;
60 	char fmt[20];
61 
62 	tp = *localtime(started);
63 	tm = *localtime(now);
64 	diff = *now - *started;
65 
66 	/* If more than a week, use day-month-year. */
67 	if (diff > 86400 * 7)
68 		(void)strcpy(fmt, "%d%b%y");
69 
70 	/* If not today, use day-hour-am/pm. */
71 	else if (tm.tm_mday != tp.tm_mday ||
72 		 tm.tm_mon != tp.tm_mon ||
73 		 tm.tm_year != tp.tm_year) {
74 	/* The line below does not take DST into consideration */
75 	/* else if (*now / 86400 != *started / 86400) { */
76 		(void)strcpy(fmt, use_ampm ? "%a%I%p" : "%a%H");
77 	}
78 
79 	/* Default is hh:mm{am,pm}. */
80 	else {
81 		(void)strcpy(fmt, use_ampm ? "%l:%M%p" : "%k:%M");
82 	}
83 
84 	(void)strftime(buf, sizeof(buf), fmt, &tp);
85 	(void)printf("%-7.7s", buf);
86 }
87 
88 /*
89  * pr_idle --
90  *	Display the idle time.
91  *	Returns number of excess characters that were used for long idle time.
92  */
93 int
94 pr_idle(time_t idle)
95 {
96 	/* If idle more than 36 hours, print as a number of days. */
97 	if (idle >= 36 * 3600) {
98 		int days = idle / 86400;
99 		(void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
100 		if (days >= 100)
101 			return (2);
102 		if (days >= 10)
103 			return (1);
104 	}
105 
106 	/* If idle more than an hour, print as HH:MM. */
107 	else if (idle >= 3600)
108 		(void)printf(" %2d:%02d ",
109 		    (int)(idle / 3600), (int)((idle % 3600) / 60));
110 
111 	else if (idle / 60 == 0)
112 		(void)printf("     - ");
113 
114 	/* Else print the minutes idle. */
115 	else
116 		(void)printf("    %2d ", (int)(idle / 60));
117 
118 	return (0); /* not idle longer than 9 days */
119 }
120