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/* Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
This file is part of GNU Fortran libU77 library.
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GNU Fortran 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with GNU Fortran; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <sys/types.h>
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#include "f2c.h"
#ifdef KR_headers
VOID s_copy ();
#else
void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb);
#endif
int G77_date_and_time_0 (char *date, char *fftime, char *zone,
integer *values, ftnlen date_len,
ftnlen fftime_len, ftnlen zone_len)
{
time_t lt=time(<);
struct tm ltime = *localtime(<), gtime = *gmtime(<);
char dat[9], zon[6], ftim[11];
int i, vals[8];
vals[0] = 1900 + ltime.tm_year;
vals[1] = 1 + ltime.tm_mon;
vals[2] = ltime.tm_mday;
/* fixme: year boundaries */
vals[3] = (ltime.tm_min - gtime.tm_min +
60*(ltime.tm_hour - gtime.tm_hour +
24*(ltime.tm_yday -gtime.tm_yday)));
vals[4] = ltime.tm_hour;
vals[5] = ltime.tm_min;
vals[6] = ltime.tm_sec;
vals[7] = 0; /* no STDC/POSIX way to get this */
/* GNUish way; maybe use `ftime' on other systems. */
#if HAVE_GETTIMEOFDAY
{
struct timeval tp;
# if GETTIMEOFDAY_ONE_ARGUMENT
if (! gettimeofday (&tp))
# else
# if HAVE_STRUCT_TIMEZONE
struct timezone tzp;
/* Some systems such as HPUX, do have struct timezone, but
gettimeofday takes void* as the 2nd arg. However, the effect
of passing anything other than a null pointer is unspecified on
HPUX. Configure checks if gettimeofday actually fails with a
non-NULL arg and pretends that struct timezone is missing if it
does fail. */
if (! gettimeofday (&tp, &tzp))
# else
if (! gettimeofday (&tp, (void *) 0))
# endif /* HAVE_STRUCT_TIMEZONE */
# endif /* GETTIMEOFDAY_ONE_ARGUMENT */
vals[7] = tp.tv_usec/1000;
}
#endif /* HAVE_GETTIMEOFDAY */
if (values) /* null pointer for missing optional */
for (i=0; i<=7; i++)
values[i] = vals[i];
sprintf (dat, "%04d%02d%02d", vals[0], vals[1], vals[2]);
s_copy(date, dat, date_len, 8);
if (zone) {
sprintf(zon, "%+03d%02d", vals[3] / 60, abs(vals[3] % 60));
s_copy(zone, zon, zone_len, 5);
}
if (fftime) {
sprintf (ftim, "%02d%02d%02d.%03d", vals[4], vals[5], vals[6], vals[7]);
s_copy(fftime, ftim, fftime_len, 10);
}
return 0;
}
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