pr_time.c revision 87674 
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: head/usr.bin/w/pr_time.c 87674 2001-12-11 22:18:47Z markm $");
37
38#ifndef lint
39static 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 */
54void
55pr_attime(started, now)
56	time_t *started, *now;
57{
58	static char buf[256];
59	struct tm tp, tm;
60	time_t diff;
61	char fmt[20];
62
63	tp = *localtime(started);
64	tm = *localtime(now);
65	diff = *now - *started;
66
67	/* If more than a week, use day-month-year. */
68	if (diff > 86400 * 7)
69		(void)strcpy(fmt, "%d%b%y");
70
71	/* If not today, use day-hour-am/pm. */
72	else if (tm.tm_mday != tp.tm_mday ||
73		 tm.tm_mon != tp.tm_mon ||
74		 tm.tm_year != tp.tm_year) {
75	/* The line below does not take DST into consideration */
76	/* else if (*now / 86400 != *started / 86400) { */
77		(void)strcpy(fmt, use_ampm ? "%a%I%p" : "%a%H");
78	}
79
80	/* Default is hh:mm{am,pm}. */
81	else {
82		(void)strcpy(fmt, use_ampm ? "%l:%M%p" : "%k:%M");
83	}
84
85	(void)strftime(buf, sizeof(buf), fmt, &tp);
86	(void)printf("%-7.7s", buf);
87}
88
89/*
90 * pr_idle --
91 *	Display the idle time.
92 *	Returns number of excess characters that were used for long idle time.
93 */
94int
95pr_idle(idle)
96	time_t idle;
97{
98	/* If idle more than 36 hours, print as a number of days. */
99	if (idle >= 36 * 3600) {
100		int days = idle / 86400;
101		(void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
102		if (days >= 100)
103			return (2);
104		if (days >= 10)
105			return (1);
106	}
107
108	/* If idle more than an hour, print as HH:MM. */
109	else if (idle >= 3600)
110		(void)printf(" %2d:%02d ",
111		    (int)(idle / 3600), (int)((idle % 3600) / 60));
112
113	else if (idle / 60 == 0)
114		(void)printf("     - ");
115
116	/* Else print the minutes idle. */
117	else
118		(void)printf("    %2d ", (int)(idle / 60));
119
120	return (0); /* not idle longer than 9 days */
121}
122