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pr_time.c revision 1.14 
      1 /*	$NetBSD: pr_time.c,v 1.14 2003/08/07 11:17:12 agc 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 1.14 2003/08/07 11:17:12 agc 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 	char *fmt;
     66 
     67 	tnow_yday = localtime(now)->tm_yday;
     68 	tp = localtime(started);
     69 	diff = *now - *started;
     70 
     71 	/* If more than a week, use day-month-year. */
     72 	if (diff > SECSPERDAY * DAYSPERWEEK)
     73 		fmt = "%d%b%y";
     74 
     75 	/* If not today, use day-hour-am/pm. */
     76 	else if (tp->tm_yday != tnow_yday)
     77 		fmt = "%a%" "I%p";
     78 
     79 	/* Default is hh:mm{am,pm}. */
     80 	else
     81 		fmt = "%l:%" "M%p";
     82 
     83 	(void)strftime(buf, sizeof(buf), fmt, tp);
     84 	buf[sizeof(buf) - 1] = '\0';
     85 	(void)fputs(buf, stdout);
     86 }
     87 
     88 /*
     89  * pr_idle --
     90  *	Display the idle time.
     91  */
     92 void
     93 pr_idle(time_t idle)
     94 {
     95 	int days = idle / SECSPERDAY;
     96 
     97 	/* If idle more than 36 hours, print as a number of days. */
     98 	if (idle >= 36 * SECSPERHOUR)
     99 		printf("  %dday%s ", days, days == 1 ? "" : "s");
    100 
    101 	/* If idle more than an hour, print as HH:MM. */
    102 	else if (idle >= SECSPERHOUR)
    103 		(void)printf(" %2d:%02d ",
    104 		    (int)(idle / SECSPERHOUR),
    105 		    (int)((idle % SECSPERHOUR) / SECSPERMIN));
    106 
    107 	/* Else print the minutes idle. */
    108 	else
    109 		(void)printf("    %2d ", (int)(idle / SECSPERMIN));
    110 }
    111