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/* $Id$ */
/*
*
* Copyright (C) 2003 David Mazieres (dm@uun.org)
*
* 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, or (at
* your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#include "avutil.h"
long
parse_expire (const char *age, time_t now)
{
unsigned long res = -1;
char mult;
unsigned int len;
int sign = 1;
if (age[0] == '+')
age++;
else if (age[0] == '-') {
sign = -1;
age++;
}
else if (sscanf (age, "%lu%n", &res, &len) == 1 && len == strlen (age))
return res;
if (sscanf (age, "%lu%c%n", &res, &mult, &len) != 2
|| len != strlen (age)) {
fprintf (stderr, "bad time %s\n", age);
return -1;
}
if (sign < 0)
res = -res;
switch (mult) {
case 'Y':
res *= 365 * 24 * 60 * 60;
break;
case 'M':
res *= 30 * 24 * 60 * 60;
break;
case 'W':
case 'w':
res *= 7 * 24 * 60 * 60;
break;
case 'D':
case 'd':
res *= 24 * 60 * 60;
break;
case 'h':
res *= 60 * 60;
break;
case 'm':
res *= 60;
break;
case 's':
break;
default:
fprintf (stderr, "unknown age unit '%c'\n", mult);
return -1;
}
return now + res;
}
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