xref: /freebsd/usr.bin/w/pr_time.c (revision eb69d1f144a6fcc765d1b9d44a5ae8082353e70b)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
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. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 
34 __FBSDID("$FreeBSD$");
35 
36 #ifndef lint
37 static const char sccsid[] = "@(#)pr_time.c	8.2 (Berkeley) 4/4/94";
38 #endif
39 
40 #include <sys/types.h>
41 #include <sys/time.h>
42 
43 #include <stdio.h>
44 #include <string.h>
45 #include <wchar.h>
46 #include <libxo/xo.h>
47 
48 #include "extern.h"
49 
50 /*
51  * pr_attime --
52  *	Print the time since the user logged in.
53  */
54 int
55 pr_attime(time_t *started, time_t *now)
56 {
57 	static wchar_t buf[256];
58 	struct tm tp, tm;
59 	time_t diff;
60 	const wchar_t *fmt;
61 	int len, width, offset = 0;
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 		fmt = L"%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 		fmt = use_ampm ? L"%a%I%p" : L"%a%H";
78 	}
79 
80 	/* Default is hh:mm{am,pm}. */
81 	else {
82 		fmt = use_ampm ? L"%l:%M%p" : L"%k:%M";
83 	}
84 
85 	(void)wcsftime(buf, sizeof(buf), fmt, &tp);
86 	len = wcslen(buf);
87 	width = wcswidth(buf, len);
88 	xo_attr("since", "%lu", (unsigned long) *started);
89 	xo_attr("delta", "%lu", (unsigned long) diff);
90 	if (len == width)
91 		xo_emit("{:login-time/%-7.7ls/%ls}", buf);
92 	else if (width < 7)
93 	        xo_emit("{:login-time/%ls}%.*s", buf, 7 - width, "      ");
94 	else {
95 		xo_emit("{:login-time/%ls}", buf);
96 		offset = width - 7;
97 	}
98 	return (offset);
99 }
100 
101 /*
102  * pr_idle --
103  *	Display the idle time.
104  *	Returns number of excess characters that were used for long idle time.
105  */
106 int
107 pr_idle(time_t idle)
108 {
109 	/* If idle more than 36 hours, print as a number of days. */
110 	if (idle >= 36 * 3600) {
111 		int days = idle / 86400;
112 		xo_emit(" {:idle/%dday%s} ", days, days > 1 ? "s" : " " );
113 		if (days >= 100)
114 			return (2);
115 		if (days >= 10)
116 			return (1);
117 	}
118 
119 	/* If idle more than an hour, print as HH:MM. */
120 	else if (idle >= 3600)
121 		xo_emit(" {:idle/%2d:%02d/} ",
122 		    (int)(idle / 3600), (int)((idle % 3600) / 60));
123 
124 	else if (idle / 60 == 0)
125 		xo_emit("     - ");
126 
127 	/* Else print the minutes idle. */
128 	else
129 		xo_emit("    {:idle/%2d} ", (int)(idle / 60));
130 
131 	return (0); /* not idle longer than 9 days */
132 }
133