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/* misc. universal things
* Header: "defs.h"
*
* Copyright (C) 1998-2001 D. Hugh Redelmeier.
* Copyright (C) 2014 D. Hugh Redelmeier.
* Copyright (C) 2015 Paul Wouters
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/gpl2.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <stdio.h>
#include <dirent.h>
#include <sys/types.h>
#include "sysdep.h"
#include "constants.h"
#include "defs.h"
#include "log.h"
#include "whack.h" /* for RC_LOG_SERIOUS */
bool all_zero(const unsigned char *m, size_t len)
{
size_t i;
for (i = 0; i != len; i++)
if (m[i] != '\0')
return FALSE;
return TRUE;
}
/*
* checks if the expiration date has been reached and
* warns during the warning_interval of the imminent
* expiry.
* warning interval is in days.
* strict == TRUE: expiry yields an error message
* strict == FALSE: expiry yields a warning message
*
* Note: not re-entrant because the message may be in a static buffer (buf).
*/
const char *check_expiry(realtime_t expiration_date, time_t warning_interval,
bool strict)
{
time_t time_left; /* a deltatime_t, unpacked */
if (is_realtime_epoch(expiration_date))
return "ok (expires never)";
time_left = deltasecs(realtimediff(expiration_date, realnow()));
if (time_left < 0)
return strict ? "fatal (expired)" : "warning (expired)";
if (time_left > warning_interval)
return "ok";
{
/* STATIC!! */
/* note: 20 is a guess at the maximum digits in an intmax_t */
static char buf[sizeof("warning (expires in %jd minutes)") + 20];
const char *unit = "second";
if (time_left > 2 * secs_per_day) {
time_left /= secs_per_day;
unit = "day";
} else if (time_left > 2 * secs_per_hour) {
time_left /= secs_per_hour;
unit = "hour";
} else if (time_left > 2 * secs_per_minute) {
time_left /= secs_per_minute;
unit = "minute";
}
snprintf(buf, sizeof(buf), "warning (expires in %jd %s%s)",
(intmax_t) time_left, unit,
(time_left == 1) ? "" : "s");
return buf;
}
}
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