freebsd-skq/usr.bin/w/pr_time.c
yokota 479436ac99 Made sure the string formated by strftime() is properly
null-terminated.

Should go to RELENG_2_1 and RELENG_2_2.

Reviewed by guido@freebsd.org.
1997-03-07 10:54:19 +00:00

114 lines
3.4 KiB
C

/*-
* Copyright (c) 1990, 1993, 1994
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)pr_time.c 8.2 (Berkeley) 4/4/94";
#endif /* not lint */
#include <sys/types.h>
#include <sys/time.h>
#include <stdio.h>
#include <string.h>
#include "extern.h"
/*
* pr_attime --
* Print the time since the user logged in.
*
* Note: SCCS forces the bizarre string manipulation, things like
* 8.2 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 > 86400 * 7)
(void)strcpy(fmt, "%d%b%y");
/* If not today, use day-hour-am/pm. */
else if (*now / 86400 != *started / 86400) {
(void)strcpy(fmt, __CONCAT("%a%", "I%p"));
}
/* Default is hh:mm{am,pm}. */
else {
(void)strcpy(fmt, __CONCAT("%l:%", "M%p"));
}
(void)strftime(buf, sizeof(buf) - 1, fmt, tp);
buf[sizeof(buf) - 1] = '\0';
(void)printf("%s", buf);
}
/*
* pr_idle --
* Display the idle time.
*/
int
pr_idle(idle)
time_t idle;
{
/* If idle more than 36 hours, print as a number of days. */
if (idle >= 36 * 3600) {
int days = idle / 86400;
(void)printf(" %dday%s ", days, days > 1 ? "s" : " " );
if (days >= 10)
return(1);
}
/* If idle more than an hour, print as HH:MM. */
else if (idle >= 3600)
(void)printf(" %2d:%02d ",
idle / 3600, (idle % 3600) / 60);
else if (idle / 60 == 0)
(void)printf(" - ");
/* Else print the minutes idle. */
else
(void)printf(" %2d ", idle / 60);
return(0); /* not idle longer than 9 days */
}