xref: /freebsd/usr.bin/w/pr_time.c (revision 193d9e768ba63fcfb187cfd17f461f7d41345048)
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. 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 #include <libxo/xo.h>
45 
46 #include "extern.h"
47 
48 /*
49  * pr_attime --
50  *	Print the time since the user logged in.
51  */
52 int
53 pr_attime(time_t *started, time_t *now)
54 {
55 	static wchar_t buf[256];
56 	struct tm tp, tm;
57 	time_t diff;
58 	const wchar_t *fmt;
59 	int len, width, offset = 0;
60 
61 	tp = *localtime(started);
62 	tm = *localtime(now);
63 	diff = *now - *started;
64 
65 	/* If more than a week, use day-month-year. */
66 	if (diff > 86400 * 7)
67 		fmt = L"%d%b%y";
68 
69 	/* If not today, use day-hour-am/pm. */
70 	else if (tm.tm_mday != tp.tm_mday ||
71 		 tm.tm_mon != tp.tm_mon ||
72 		 tm.tm_year != tp.tm_year) {
73 	/* The line below does not take DST into consideration */
74 	/* else if (*now / 86400 != *started / 86400) { */
75 		fmt = use_ampm ? L"%a%I%p" : L"%a%H";
76 	}
77 
78 	/* Default is hh:mm{am,pm}. */
79 	else {
80 		fmt = use_ampm ? L"%l:%M%p" : L"%k:%M";
81 	}
82 
83 	(void)wcsftime(buf, sizeof(buf), fmt, &tp);
84 	len = wcslen(buf);
85 	width = wcswidth(buf, len);
86 	xo_attr("since", "%lu", (unsigned long) *started);
87 	xo_attr("delta", "%lu", (unsigned long) diff);
88 	if (len == width)
89 		xo_emit("{:login-time/%-7.7ls/%ls}", buf);
90 	else if (width < 7)
91 	        xo_emit("{:login-time/%ls}%.*s", buf, 7 - width, "      ");
92 	else {
93 		xo_emit("{:login-time/%ls}", buf);
94 		offset = width - 7;
95 	}
96 	return (offset);
97 }
98 
99 /*
100  * pr_idle --
101  *	Display the idle time.
102  *	Returns number of excess characters that were used for long idle time.
103  */
104 int
105 pr_idle(time_t idle)
106 {
107 	/* If idle more than 36 hours, print as a number of days. */
108 	if (idle >= 36 * 3600) {
109 		int days = idle / 86400;
110 		xo_emit(" {:idle/%dday%s} ", days, days > 1 ? "s" : " " );
111 		if (days >= 100)
112 			return (2);
113 		if (days >= 10)
114 			return (1);
115 	}
116 
117 	/* If idle more than an hour, print as HH:MM. */
118 	else if (idle >= 3600)
119 		xo_emit(" {:idle/%2d:%02d/} ",
120 		    (int)(idle / 3600), (int)((idle % 3600) / 60));
121 
122 	else if (idle / 60 == 0)
123 		xo_emit("     - ");
124 
125 	/* Else print the minutes idle. */
126 	else
127 		xo_emit("    {:idle/%2d} ", (int)(idle / 60));
128 
129 	return (0); /* not idle longer than 9 days */
130 }
131