[unix-history] / usr / src / usr.bin / w / pr_time.c

/*-
* Copyright (c) 1990, 1993
*      The Regents of the University of California.  All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char sccsid[] = "@(#)pr_time.c   8.1 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <sys/time.h>

#include <stdio.h>
#include <string.h>
#include <tzfile.h>

#include "extern.h"

/*
* pr_attime --
*      Print the time since the user logged in. 
*
*      Note: SCCS forces the bizarre string manipulation, things like
*      8.1 get replaced in the source code.
*/
void
pr_attime(started, now)
       time_t *started, *now;
{
       static char buf[256];
       struct tm *tp;
       time_t diff;
       char fmt[20];

       tp = localtime(started);
       diff = *now - *started;

       /* If more than a week, use day-month-year. */
       if (diff > SECSPERDAY * DAYSPERWEEK)
               (void)strcpy(fmt, "%d%b%y");

       /* If not today, use day-hour-am/pm. */
       else if (*now / SECSPERDAY != *started / SECSPERDAY) {
               (void)strcpy(fmt, "%a%%%p");
               fmt[3] = 'I';
       }

       /* Default is hh:mm{am,pm}. */
       else {
               (void)strcpy(fmt, "%l:%%%p");
               fmt[4] = 'M';
       }

       (void)strftime(buf, sizeof(buf), fmt, tp);
       (void)printf("%s", buf);
}

/*
* pr_idle --
*      Display the idle time.
*/
void
pr_idle(idle)
       time_t idle;
{
       /* If idle more than 36 hours, print as a number of days. */
       if (idle >= 36 * SECSPERHOUR)
               (void)printf(" %ddays ", idle / SECSPERDAY);

       /* If idle more than an hour, print as HH:MM. */
       else if (idle >= SECSPERHOUR)
               (void)printf(" %2d:%02d ",
                   idle / SECSPERHOUR, (idle % SECSPERHOUR) / SECSPERMIN);

       /* Else print the minutes idle. */
       else
               (void)printf("    %2d ", idle / SECSPERMIN);
}