pr_time.c revision 196652 
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 196652 2009-08-30 11:17:42Z ume $");
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#include <wchar.h>
48
49#include "extern.h"
50
51/*
52 * pr_attime --
53 *	Print the time since the user logged in.
54 */
55int
56pr_attime(time_t *started, time_t *now)
57{
58	static wchar_t buf[256];
59	struct tm tp, tm;
60	time_t diff;
61	wchar_t *fmt;
62	int len, width, offset = 0;
63
64	tp = *localtime(started);
65	tm = *localtime(now);
66	diff = *now - *started;
67
68	/* If more than a week, use day-month-year. */
69	if (diff > 86400 * 7)
70		fmt = L"%d%b%y";
71
72	/* If not today, use day-hour-am/pm. */
73	else if (tm.tm_mday != tp.tm_mday ||
74		 tm.tm_mon != tp.tm_mon ||
75		 tm.tm_year != tp.tm_year) {
76	/* The line below does not take DST into consideration */
77	/* else if (*now / 86400 != *started / 86400) { */
78		fmt = use_ampm ? L"%a%I%p" : L"%a%H";
79	}
80
81	/* Default is hh:mm{am,pm}. */
82	else {
83		fmt = use_ampm ? L"%l:%M%p" : L"%k:%M";
84	}
85
86	(void)wcsftime(buf, sizeof(buf), fmt, &tp);
87	len = wcslen(buf);
88	width = wcswidth(buf, len);
89	if (len == width)
90		(void)wprintf(L"%-7.7ls", buf);
91	else if (width < 7)
92		(void)wprintf(L"%ls%.*s", buf, 7 - width, "      ");
93	else {
94		(void)wprintf(L"%ls", buf);
95		offset = width - 7;
96	}
97	return (offset);
98}
99
100/*
101 * pr_idle --
102 *	Display the idle time.
103 *	Returns number of excess characters that were used for long idle time.
104 */
105int
106pr_idle(time_t idle)
107{
108	/* If idle more than 36 hours, print as a number of days. */
109	if (idle >= 36 * 3600) {
110		int days = idle / 86400;
111		(void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
112		if (days >= 100)
113			return (2);
114		if (days >= 10)
115			return (1);
116	}
117
118	/* If idle more than an hour, print as HH:MM. */
119	else if (idle >= 3600)
120		(void)printf(" %2d:%02d ",
121		    (int)(idle / 3600), (int)((idle % 3600) / 60));
122
123	else if (idle / 60 == 0)
124		(void)printf("     - ");
125
126	/* Else print the minutes idle. */
127	else
128		(void)printf("    %2d ", (int)(idle / 60));
129
130	return (0); /* not idle longer than 9 days */
131}
132