xref: /freebsd/usr.bin/w/pr_time.c (revision 7661de35d15f582ab33e3bd6b8d909601557e436)
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  * 4. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 
32 __FBSDID("$FreeBSD$");
33 
34 #ifndef lint
35 static const char sccsid[] = "@(#)pr_time.c	8.2 (Berkeley) 4/4/94";
36 #endif
37 
38 #include <sys/types.h>
39 #include <sys/time.h>
40 
41 #include <stdio.h>
42 #include <string.h>
43 #include <wchar.h>
44 
45 #include "extern.h"
46 
47 /*
48  * pr_attime --
49  *	Print the time since the user logged in.
50  */
51 int
52 pr_attime(time_t *started, time_t *now)
53 {
54 	static wchar_t buf[256];
55 	struct tm tp, tm;
56 	time_t diff;
57 	const wchar_t *fmt;
58 	int len, width, offset = 0;
59 
60 	tp = *localtime(started);
61 	tm = *localtime(now);
62 	diff = *now - *started;
63 
64 	/* If more than a week, use day-month-year. */
65 	if (diff > 86400 * 7)
66 		fmt = L"%d%b%y";
67 
68 	/* If not today, use day-hour-am/pm. */
69 	else if (tm.tm_mday != tp.tm_mday ||
70 		 tm.tm_mon != tp.tm_mon ||
71 		 tm.tm_year != tp.tm_year) {
72 	/* The line below does not take DST into consideration */
73 	/* else if (*now / 86400 != *started / 86400) { */
74 		fmt = use_ampm ? L"%a%I%p" : L"%a%H";
75 	}
76 
77 	/* Default is hh:mm{am,pm}. */
78 	else {
79 		fmt = use_ampm ? L"%l:%M%p" : L"%k:%M";
80 	}
81 
82 	(void)wcsftime(buf, sizeof(buf), fmt, &tp);
83 	len = wcslen(buf);
84 	width = wcswidth(buf, len);
85 	if (len == width)
86 		(void)wprintf(L"%-7.7ls", buf);
87 	else if (width < 7)
88 		(void)wprintf(L"%ls%.*s", buf, 7 - width, "      ");
89 	else {
90 		(void)wprintf(L"%ls", buf);
91 		offset = width - 7;
92 	}
93 	return (offset);
94 }
95 
96 /*
97  * pr_idle --
98  *	Display the idle time.
99  *	Returns number of excess characters that were used for long idle time.
100  */
101 int
102 pr_idle(time_t idle)
103 {
104 	/* If idle more than 36 hours, print as a number of days. */
105 	if (idle >= 36 * 3600) {
106 		int days = idle / 86400;
107 		(void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
108 		if (days >= 100)
109 			return (2);
110 		if (days >= 10)
111 			return (1);
112 	}
113 
114 	/* If idle more than an hour, print as HH:MM. */
115 	else if (idle >= 3600)
116 		(void)printf(" %2d:%02d ",
117 		    (int)(idle / 3600), (int)((idle % 3600) / 60));
118 
119 	else if (idle / 60 == 0)
120 		(void)printf("     - ");
121 
122 	/* Else print the minutes idle. */
123 	else
124 		(void)printf("    %2d ", (int)(idle / 60));
125 
126 	return (0); /* not idle longer than 9 days */
127 }
128