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pr_time.c revision 1.13 
      1 /*	$NetBSD: pr_time.c,v 1.13 2002/10/21 10:18:23 enami 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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)pr_time.c	8.2 (Berkeley) 4/4/94";
     40 #else
     41 __RCSID("$NetBSD: pr_time.c,v 1.13 2002/10/21 10:18:23 enami Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include <sys/types.h>
     46 #include <sys/time.h>
     47 
     48 #include <stdio.h>
     49 #include <string.h>
     50 #include <time.h>
     51 #include <tzfile.h>
     52 
     53 #include "extern.h"
     54 
     55 /*
     56  * pr_attime --
     57  *	Print the time since the user logged in.
     58  *
     59  *	Note: SCCS forces the bizarre string manipulation, things like
     60  *	%I% get replaced in the source code.
     61  */
     62 void
     63 pr_attime(time_t *started, time_t *now)
     64 {
     65 	static char buf[256];
     66 	int tnow_yday;
     67 	struct tm *tp;
     68 	time_t diff;
     69 	char *fmt;
     70 
     71 	tnow_yday = localtime(now)->tm_yday;
     72 	tp = localtime(started);
     73 	diff = *now - *started;
     74 
     75 	/* If more than a week, use day-month-year. */
     76 	if (diff > SECSPERDAY * DAYSPERWEEK)
     77 		fmt = "%d%b%y";
     78 
     79 	/* If not today, use day-hour-am/pm. */
     80 	else if (tp->tm_yday != tnow_yday)
     81 		fmt = "%a%" "I%p";
     82 
     83 	/* Default is hh:mm{am,pm}. */
     84 	else
     85 		fmt = "%l:%" "M%p";
     86 
     87 	(void)strftime(buf, sizeof(buf), fmt, tp);
     88 	buf[sizeof(buf) - 1] = '\0';
     89 	(void)fputs(buf, stdout);
     90 }
     91 
     92 /*
     93  * pr_idle --
     94  *	Display the idle time.
     95  */
     96 void
     97 pr_idle(time_t idle)
     98 {
     99 	int days = idle / SECSPERDAY;
    100 
    101 	/* If idle more than 36 hours, print as a number of days. */
    102 	if (idle >= 36 * SECSPERHOUR)
    103 		printf("  %dday%s ", days, days == 1 ? "" : "s");
    104 
    105 	/* If idle more than an hour, print as HH:MM. */
    106 	else if (idle >= SECSPERHOUR)
    107 		(void)printf(" %2d:%02d ",
    108 		    (int)(idle / SECSPERHOUR),
    109 		    (int)((idle % SECSPERHOUR) / SECSPERMIN));
    110 
    111 	/* Else print the minutes idle. */
    112 	else
    113 		(void)printf("    %2d ", (int)(idle / SECSPERMIN));
    114 }
    115