xref: /netbsd/usr.bin/w/pr_time.c (revision c4a72b64)
1 /*	$NetBSD: pr_time.c,v 1.13 2002/10/21 10:18:23 enami 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. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #ifndef lint
38 #if 0
39 static char sccsid[] = "@(#)pr_time.c	8.2 (Berkeley) 4/4/94";
40 #else
41 __RCSID("$NetBSD: pr_time.c,v 1.13 2002/10/21 10:18:23 enami Exp $");
42 #endif
43 #endif /* not lint */
44 
45 #include <sys/types.h>
46 #include <sys/time.h>
47 
48 #include <stdio.h>
49 #include <string.h>
50 #include <time.h>
51 #include <tzfile.h>
52 
53 #include "extern.h"
54 
55 /*
56  * pr_attime --
57  *	Print the time since the user logged in.
58  *
59  *	Note: SCCS forces the bizarre string manipulation, things like
60  *	%I% get replaced in the source code.
61  */
62 void
63 pr_attime(time_t *started, time_t *now)
64 {
65 	static char buf[256];
66 	int tnow_yday;
67 	struct tm *tp;
68 	time_t diff;
69 	char *fmt;
70 
71 	tnow_yday = localtime(now)->tm_yday;
72 	tp = localtime(started);
73 	diff = *now - *started;
74 
75 	/* If more than a week, use day-month-year. */
76 	if (diff > SECSPERDAY * DAYSPERWEEK)
77 		fmt = "%d%b%y";
78 
79 	/* If not today, use day-hour-am/pm. */
80 	else if (tp->tm_yday != tnow_yday)
81 		fmt = "%a%" "I%p";
82 
83 	/* Default is hh:mm{am,pm}. */
84 	else
85 		fmt = "%l:%" "M%p";
86 
87 	(void)strftime(buf, sizeof(buf), fmt, tp);
88 	buf[sizeof(buf) - 1] = '\0';
89 	(void)fputs(buf, stdout);
90 }
91 
92 /*
93  * pr_idle --
94  *	Display the idle time.
95  */
96 void
97 pr_idle(time_t idle)
98 {
99 	int days = idle / SECSPERDAY;
100 
101 	/* If idle more than 36 hours, print as a number of days. */
102 	if (idle >= 36 * SECSPERHOUR)
103 		printf("  %dday%s ", days, days == 1 ? "" : "s");
104 
105 	/* If idle more than an hour, print as HH:MM. */
106 	else if (idle >= SECSPERHOUR)
107 		(void)printf(" %2d:%02d ",
108 		    (int)(idle / SECSPERHOUR),
109 		    (int)((idle % SECSPERHOUR) / SECSPERMIN));
110 
111 	/* Else print the minutes idle. */
112 	else
113 		(void)printf("    %2d ", (int)(idle / SECSPERMIN));
114 }
115