1 /* Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
2 This file is part of GNU Fortran libU77 library.
4 This library is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published
6 by the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 GNU Fortran is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with GNU Fortran; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
23 #include <sys/types.h>
24 #if TIME_WITH_SYS_TIME
25 # include <sys/time.h>
29 # include <sys/time.h>
39 void s_copy(register char *a, register char *b, ftnlen la, ftnlen lb);
42 int G77_date_and_time_0 (char *date, char *fftime, char *zone,
43 integer *values, ftnlen date_len,
44 ftnlen fftime_len, ftnlen zone_len)
47 struct tm ltime = *localtime(<), gtime = *gmtime(<);
48 char dat[9], zon[6], ftim[11];
51 vals[0] = 1900 + ltime.tm_year;
52 vals[1] = 1 + ltime.tm_mon;
53 vals[2] = ltime.tm_mday;
54 /* fixme: year boundaries */
55 vals[3] = (ltime.tm_min - gtime.tm_min +
56 60*(ltime.tm_hour - gtime.tm_hour +
57 24*(ltime.tm_yday -gtime.tm_yday)));
58 vals[4] = ltime.tm_hour;
59 vals[5] = ltime.tm_min;
60 vals[6] = ltime.tm_sec;
61 vals[7] = 0; /* no STDC/POSIX way to get this */
62 /* GNUish way; maybe use `ftime' on other systems. */
66 # if GETTIMEOFDAY_ONE_ARGUMENT
67 if (! gettimeofday (&tp))
69 # if HAVE_STRUCT_TIMEZONE
71 /* Some systems such as HPUX, do have struct timezone, but
72 gettimeofday takes void* as the 2nd arg. However, the effect
73 of passing anything other than a null pointer is unspecified on
74 HPUX. Configure checks if gettimeofday actually fails with a
75 non-NULL arg and pretends that struct timezone is missing if it
77 if (! gettimeofday (&tp, &tzp))
79 if (! gettimeofday (&tp, (void *) 0))
80 # endif /* HAVE_STRUCT_TIMEZONE */
81 # endif /* GETTIMEOFDAY_ONE_ARGUMENT */
82 vals[7] = tp.tv_usec/1000;
84 #endif /* HAVE_GETTIMEOFDAY */
85 if (values) /* null pointer for missing optional */
88 sprintf (dat, "%04d%02d%02d", vals[0], vals[1], vals[2]);
89 s_copy(date, dat, date_len, 8);
91 sprintf(zon, "%+03d%02d", vals[3] / 60, abs(vals[3] % 60));
92 s_copy(zone, zon, zone_len, 5);
95 sprintf (ftim, "%02d%02d%02d.%03d", vals[4], vals[5], vals[6], vals[7]);
96 s_copy(fftime, ftim, fftime_len, 10);