usr.bin/w/pr_time.c

   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  * @(#)pr_time.c        8.2 (Berkeley) 4/4/94
  34  * $FreeBSD: src/usr.bin/w/pr_time.c,v 1.14.2.1 2002/03/12 19:51:51 phantom Exp $
  35  * $DragonFly: src/usr.bin/w/pr_time.c,v 1.3 2003/10/04 20:36:54 hmp Exp $
  36  */
  37
  38 #include <sys/types.h>
  39 #include <sys/time.h>
  40
  41 #include <stdio.h>
  42 #include <string.h>
  43
  44 #include "extern.h"
  45
  46 /*
  47  * pr_attime --
  48  *      Print the time since the user logged in.
  49  */
  50 void
  51 pr_attime(time_t *started, time_t *now)
  52 {
  53         static char buf[256];
  54         struct tm tp, tm;
  55         time_t diff;
  56         char fmt[20];
  57
  58         tp = *localtime(started);
  59         tm = *localtime(now);
  60         diff = *now - *started;
  61
  62         /* If more than a week, use day-month-year. */
  63         if (diff > 86400 * 7)
  64                 (void)strcpy(fmt, "%d%b%y");
  65
  66         /* If not today, use day-hour-am/pm. */
  67         else if (tm.tm_mday != tp.tm_mday ||
  68                  tm.tm_mon != tp.tm_mon ||
  69                  tm.tm_year != tp.tm_year) {
  70         /* The line below does not take DST into consideration */
  71         /* else if (*now / 86400 != *started / 86400) { */
  72                 (void)strcpy(fmt, use_ampm ? "%a%I%p" : "%a%H");
  73         }
  74
  75         /* Default is hh:mm{am,pm}. */
  76         else {
  77                 (void)strcpy(fmt, use_ampm ? "%l:%M%p" : "%k:%M");
  78         }
  79
  80         (void)strftime(buf, sizeof(buf), fmt, &tp);
  81         (void)printf("%-7.7s", buf);
  82 }
  83
  84 /*
  85  * pr_idle --
  86  *      Display the idle time.
  87  *      Returns number of excess characters that were used for long idle time.
  88  */
  89 int
  90 pr_idle(time_t idle)
  91 {
  92         /* If idle more than 36 hours, print as a number of days. */
  93         if (idle >= 36 * 3600) {
  94                 int days = idle / 86400;
  95                 (void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
  96                 if (days >= 100)
  97                         return (2);
  98                 if (days >= 10)
  99                         return (1);
 100         }
 101
 102         /* If idle more than an hour, print as HH:MM. */
 103         else if (idle >= 3600)
 104                 (void)printf(" %2d:%02d ",
 105                     (int)(idle / 3600), (int)((idle % 3600) / 60));
 106
 107         else if (idle / 60 == 0)
 108                 (void)printf("     - ");
 109
 110         /* Else print the minutes idle. */
 111         else
 112                 (void)printf("    %2d ", (int)(idle / 60));
 113
 114         return (0); /* not idle longer than 9 days */
 115 }