122 lines
2.6 KiB
C
122 lines
2.6 KiB
C
/*****************************************************************************
|
|
*
|
|
* $Id: filetime.c,v 1.5 2004/02/21 17:22:01 mbroek Exp $
|
|
* Purpose ...............: Fidonet mailer
|
|
*
|
|
*****************************************************************************
|
|
* Copyright (C) 1997-2004
|
|
*
|
|
* Michiel Broek FIDO: 2:280/2802
|
|
* Beekmansbos 10
|
|
* 1971 BV IJmuiden
|
|
* the Netherlands
|
|
*
|
|
* This file is part of MBSE BBS.
|
|
*
|
|
* This BBS 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.
|
|
*
|
|
* MBSE BBS 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 MBSE BBS; see the file COPYING. If not, write to the Free
|
|
* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
|
*****************************************************************************/
|
|
|
|
#include "../config.h"
|
|
#include "../lib/mbselib.h"
|
|
#include "filetime.h"
|
|
|
|
|
|
|
|
time_t gmtoff(time_t);
|
|
time_t gmtoff(time_t tt)
|
|
{
|
|
struct tm lt;
|
|
#ifndef HAVE_TM_GMTOFF
|
|
struct tm gt;
|
|
time_t offset;
|
|
|
|
lt = *localtime(&tt);
|
|
gt = *gmtime(&tt);
|
|
offset = gt.tm_yday - lt.tm_yday;
|
|
if (offset > 1)
|
|
offset =- 24;
|
|
else
|
|
if (offset < -1)
|
|
offset = 24;
|
|
else
|
|
offset *= 24;
|
|
|
|
offset += gt.tm_hour - lt.tm_hour;
|
|
offset *= 60;
|
|
offset += gt.tm_min - lt.tm_min;
|
|
offset *= 60;
|
|
offset += gt.tm_sec - lt.tm_sec;
|
|
return offset;
|
|
#else
|
|
lt = *localtime(&tt);
|
|
return -lt.tm_gmtoff;
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* SEAlink time conversion
|
|
* FIXME: I think there is one year difference, spec starts at 1 jan 1979, mtime starts at 1 jan 1980
|
|
*/
|
|
time_t mtime2sl(time_t tt)
|
|
{
|
|
return tt - gmtoff(tt);
|
|
}
|
|
|
|
|
|
|
|
time_t sl2mtime(time_t tt)
|
|
{
|
|
return tt + gmtoff(tt);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Telink time conversion
|
|
*/
|
|
time_t mtime2tl(time_t tt)
|
|
{
|
|
time_t tlt=0L;
|
|
struct tm *tm;
|
|
|
|
tm=localtime(&tt);
|
|
tlt |= ((tm->tm_year)-1980) << 25;
|
|
tlt |= (tm->tm_mon) << 21;
|
|
tlt |= (tm->tm_mday) << 16;
|
|
tlt |= (tm->tm_hour) << 11;
|
|
tlt |= (tm->tm_min) << 5;
|
|
tlt |= (tm->tm_sec) >> 1;
|
|
return tlt;
|
|
}
|
|
|
|
|
|
|
|
time_t tl2mtime(time_t tt)
|
|
{
|
|
struct tm tm;
|
|
|
|
tm.tm_year = ((tt >> 25) & 0x7f) + 1980;
|
|
tm.tm_mon = (tt >> 21) & 0x0f;
|
|
tm.tm_mday = (tt >> 16) & 0x1f;
|
|
tm.tm_hour = (tt >> 11) & 0x1f;
|
|
tm.tm_min = (tt >> 5 ) & 0x3f;
|
|
tm.tm_sec = ((tt ) & 0x1f) * 2;
|
|
|
|
return mktime(&tm);
|
|
}
|
|
|