usr.bin/w/pr_time.c

   1 /*      $NetBSD: pr_time.c,v 1.18 2011/08/17 13:48:11 christos Exp $    */
   2
   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 #ifndef lint
  34 #if 0
  35 static char sccsid[] = "@(#)pr_time.c   8.2 (Berkeley) 4/4/94";
  36 #else
  37 __RCSID("$NetBSD: pr_time.c,v 1.18 2011/08/17 13:48:11 christos Exp $");
  38 #endif
  39 #endif /* not lint */
  40
  41 #include <sys/types.h>
  42 #include <sys/time.h>
  43
  44 #include <stdio.h>
  45 #include <string.h>
  46 #include <time.h>
  47 #include <tzfile.h>
  48
  49 #include "extern.h"
  50
  51 /*
  52  * pr_attime --
  53  *      Print the time since the user logged in.
  54  *
  55  *      Note: SCCS forces the bizarre string manipulation, things like
  56  *      %I% get replaced in the source code.
  57  */
  58 void
  59 pr_attime(time_t *started, time_t *now)
  60 {
  61         static char buf[256];
  62         int tnow_yday;
  63         struct tm *tp;
  64         time_t diff;
  65
  66         tnow_yday = localtime(now)->tm_yday;
  67         tp = localtime(started);
  68         diff = *now - *started;
  69
  70         if (diff > SECSPERDAY * DAYSPERWEEK) {
  71                 /* If more than a week, use day-month-year. */
  72                 (void)strftime(buf, sizeof(buf), "%d%b%y", tp);
  73         } else if (tp->tm_yday != tnow_yday) {
  74                 /* If not today, use day-hour-am/pm. Damn SCCS */
  75                 (void)strftime(buf, sizeof(buf), "%a%" "I%p", tp);
  76         } else {
  77                 /* Default is hh:mm{am,pm}. Damn SCCS */
  78                 (void)strftime(buf, sizeof(buf), "%l:%" "M%p", tp);
  79         }
  80
  81         buf[sizeof(buf) - 1] = '\0';
  82         (void)fputs(buf, stdout);
  83 }
  84
  85 /*
  86  * pr_idle --
  87  *      Display the idle time.
  88  */
  89 void
  90 pr_idle(time_t idle)
  91 {
  92         int days;
  93
  94         if (idle == (time_t)-1) {
  95                 (void)printf("     ? ");
  96                 return;
  97         }
  98
  99         days = idle / SECSPERDAY;
 100
 101         /* If idle more than 36 hours, print as a number of days. */
 102         if (idle >= 48 * SECSPERHOUR)
 103                 printf(" %ddays ", days);
 104         else if (idle >= 36 * SECSPERHOUR)
 105                 printf("  1day ");
 106
 107         /* If idle more than an hour, print as HH:MM. */
 108         else if (idle >= SECSPERHOUR)
 109                 (void)printf(" %2d:%02d ",
 110                     (int)(idle / SECSPERHOUR),
 111                     (int)((idle % SECSPERHOUR) / SECSPERMIN));
 112
 113         /* Else print the minutes idle. */
 114         else
 115                 (void)printf("    %2d ", (int)(idle / SECSPERMIN));
 116 }