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143 lines
3.7 KiB
143 lines
3.7 KiB
/*
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timegm.cc
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timegm: Portable version of timegm (mytimegm) for ht://Dig
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Based on a version from the GNU C Library
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and a previous implementation for ht://Dig
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Part of the ht://Dig package <http://www.htdig.org/>
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Copyright (c) 1999-2004 The ht://Dig Group
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For copyright details, see the file COPYING in your distribution
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or the GNU Library General Public License (LGPL) version 2 or later
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<http://www.gnu.org/copyleft/lgpl.html>
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$Id: timegm.c,v 1.18 2004/05/28 13:15:22 lha Exp $
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*/
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/* Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Paul Eggert (eggert@twinsun.com).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* #define TEST_TIMEGM */
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#include <time.h>
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#ifdef TEST_TIMEGM
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#include <stdio.h>
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#include <stdlib.h>
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#endif
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static struct tm *my_mktime_gmtime_r (const time_t *t, struct tm *tp);
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static struct tm *my_mktime_gmtime_r (const time_t *t, struct tm *tp)
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{
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struct tm *l = gmtime (t);
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if (! l)
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return 0;
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*tp = *l;
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return tp;
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}
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time_t __mktime_internal(struct tm *,
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struct tm *(*) (const time_t *, struct tm *),
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time_t *);
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time_t Httimegm(tmp)
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struct tm *tmp;
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{
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static time_t gmtime_offset;
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tmp->tm_isdst = 0;
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return __mktime_internal (tmp, my_mktime_gmtime_r, &gmtime_offset);
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}
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#ifdef TEST_TIMEGM
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void parse_time(char *s, struct tm *tm)
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{
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sscanf(s, "%d.%d.%d %d:%d:%d",
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&tm->tm_year, &tm->tm_mon, &tm->tm_mday,
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&tm->tm_hour, &tm->tm_min, &tm->tm_sec);
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tm->tm_year -= 1900;
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tm->tm_mon--;
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}
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void print_time(struct tm *tm)
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{
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fprintf(stderr, "%04d.%02d.%02d %02d:%02d:%02d",
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tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
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tm->tm_hour, tm->tm_min, tm->tm_sec);
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}
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int time_equal(struct tm *tm1, struct tm *tm2)
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{
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return ((tm1->tm_year == tm2->tm_year) &&
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(tm1->tm_mon == tm2->tm_mon) &&
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(tm1->tm_mday == tm2->tm_mday) &&
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(tm1->tm_hour == tm2->tm_hour) &&
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(tm1->tm_min == tm2->tm_min) &&
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(tm1->tm_sec == tm2->tm_sec));
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}
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int main(void)
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{
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char *test_dates[] =
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{
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"1970.01.01 00:00:00",
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"1970.01.01 00:00:01",
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"1972.02.05 23:59:59",
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"1972.02.28 00:59:59",
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"1972.02.28 23:59:59",
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"1972.02.29 00:00:00",
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"1972.03.01 13:00:04",
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"1973.03.01 12:00:00",
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"1980.01.01 00:00:05",
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"1984.12.31 23:00:00",
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"1997.06.05 17:55:35",
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"1999.12.31 23:00:00",
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"2000.01.01 00:00:05",
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"2000.02.28 23:00:05",
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"2000.02.29 23:00:05",
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"2000.03.01 00:00:05",
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"2007.06.05 17:55:35",
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"2038.01.19 03:14:07",
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0
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};
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int i, ok = 1;
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struct tm orig, *conv;
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time_t t;
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for (i = 0; (test_dates[i]); i++)
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{
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parse_time(test_dates[i], &orig);
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t = Httimegm(&orig);
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conv = gmtime(&t);
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if (!time_equal(&orig, conv))
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{
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fprintf(stderr, "timegm() test failed!\n Original: ");
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print_time(&orig);
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fprintf(stderr, "\n Converted: ");
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print_time(conv);
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fprintf(stderr, "\n time_t: %ld\n", (long) t);
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ok = 0;
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}
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}
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exit(ok ? 0 : 1);
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}
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#endif
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