+++ /dev/null
-/* dostime.c - convert dos time to/from time_t.
-
- Copyright (C) 2002 Free Software Foundation
-
- 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.
-
- 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 <config.h>
-
-#include <time.h>
-
-#include "dostime.h"
-
-/*
- * The specification to which this was written. From Joe Buck.
- * The DOS format appears to have only 2 second resolution. It is an
- * unsigned long, and ORs together
- *
- * (year-1980)<<25
- * month<<21 (month is tm_mon + 1, 1=Jan through 12=Dec)
- * day<<16 (day is tm_mday, 1-31)
- * hour<<11 (hour is tm_hour, 0-23)
- * min<<5 (min is tm_min, 0-59)
- * sec>>1 (sec is tm_sec, 0-59, that's right, we throw away the LSB)
- *
- * DOS uses local time, so the localtime() call is used to turn the time_t
- * into a struct tm.
- */
-
-time_t
-dos2unixtime (unsigned long dostime)
-{
- struct tm ltime;
- time_t now = time (NULL);
-
- /* Call localtime to initialize timezone in TIME. */
- ltime = *localtime (&now);
-
- ltime.tm_year = (dostime >> 25) + 80;
- ltime.tm_mon = ((dostime >> 21) & 0x0f) - 1;
- ltime.tm_mday = (dostime >> 16) & 0x1f;
- ltime.tm_hour = (dostime >> 11) & 0x0f;
- ltime.tm_min = (dostime >> 5) & 0x3f;
- ltime.tm_sec = (dostime & 0x1f) << 1;
-
- ltime.tm_wday = -1;
- ltime.tm_yday = -1;
- ltime.tm_isdst = -1;
-
- return mktime (<ime);
-}
-
-unsigned long
-unix2dostime (time_t *time)
-{
- struct tm *ltime = localtime (time);
- int year = ltime->tm_year - 80;
- if (year < 0)
- year = 0;
-
- return (year << 25
- | (ltime->tm_mon + 1) << 21
- | ltime->tm_mday << 16
- | ltime->tm_hour << 11
- | ltime->tm_min << 5
- | ltime->tm_sec >> 1);
-}