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176 lines
4.2 KiB
C
176 lines
4.2 KiB
C
/* t-timestuff.c - Regression tests for time functions
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* Copyright (C) 2007 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute and/or modify this
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* part of GnuPG under the terms of either
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*
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* - the GNU Lesser General Public License as published by the Free
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* Software Foundation; either version 3 of the License, or (at
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* your option) any later version.
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*
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* or
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*
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* - the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* or both in parallel, as here.
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*
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* GnuPG is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copies of the GNU General Public License
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* and the GNU Lesser General Public License along with this program;
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* if not, see <https://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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#include "mischelp.h"
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#include "t-support.h"
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static int
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cmp_time_s (struct tm *a, struct tm *b)
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{
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if (a->tm_year != b->tm_year
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|| a->tm_mon != b->tm_mon
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|| a->tm_mday != b->tm_mday
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|| a->tm_hour != b->tm_hour
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|| a->tm_min != b->tm_min
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|| a->tm_sec != b->tm_sec
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|| a->tm_wday != b->tm_wday
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|| a->tm_yday != b->tm_yday
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|| !a->tm_isdst != !b->tm_isdst)
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return -1;
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return 0;
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}
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static void
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test_timegm (void)
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{
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static struct {
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int year, mon, mday, hour, min, sec;
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} tvalues[] = {
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{ -1 },
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{ -2, 1 },
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{ -2, 2 },
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{ -2, 86399 },
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{ -2, 86400 },
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{ -2, 0x7ffffffe },
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{ -2, 0x7fffffff },
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/* Note: Because we use mktime below we can only start with the
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day after Epoch. */
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{ 1970, 0, 2, 0, 0 , 1},
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{ 1970, 0, 2, 0, 0 , 2},
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{ 1970, 0, 2, 12, 0 , 0},
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{ 1970, 0, 2, 23, 59 , 59},
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{ 1999, 11, 31, 23, 59 , 59},
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{ 2000, 0, 1, 0, 0, 0},
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{ 2000, 0, 1, 0, 0, 1},
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{ 2010, 11, 31, 23, 59 , 59},
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{ 2010, 0, 1, 0, 0, 0},
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{ 2010, 0, 1, 0, 0, 1},
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/* On GNU based 32 bit systems the end of all ticks will be on
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20380119T031408 (unless Uli takes compassion on us and changes
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time_t to a u64). We check that the previous day is okay. */
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{ 2038, 0, 18, 23, 59, 59}
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};
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int tidx;
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time_t now, atime;
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struct tm tbuf, tbuf2, *tp;
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for (tidx=0; tidx < DIM (tvalues); tidx++)
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{
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if (tvalues[tidx].year == -1)
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{
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now = time (NULL);
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}
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else if (tvalues[tidx].year == -2)
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{
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now = tvalues[tidx].mon;
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}
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else
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{
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memset (&tbuf, 0, sizeof tbuf);
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tbuf.tm_year = tvalues[tidx].year - 1900;
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tbuf.tm_mon = tvalues[tidx].mon;
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tbuf.tm_mday = tvalues[tidx].mday;
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tbuf.tm_hour = tvalues[tidx].hour;
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tbuf.tm_min = tvalues[tidx].min;
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tbuf.tm_sec = tvalues[tidx].sec;
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#ifdef HAVE_TIMEGM
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now = timegm (&tbuf);
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#else
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now = mktime (&tbuf);
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#endif
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}
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if (now == (time_t)(-1))
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fail (tidx);
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tp = gmtime (&now);
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if (!tp)
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fail (tidx);
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else
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{
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tbuf = *tp;
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tbuf2 = tbuf;
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#ifdef HAVE_TIMEGM
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atime = timegm (&tbuf);
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#else
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atime = mktime (&tbuf);
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#endif
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if (atime == (time_t)(-1))
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fail (tidx);
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else if (atime != now)
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fail (tidx);
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tp = gmtime (&atime);
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if (!tp)
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fail (tidx);
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else if (cmp_time_s (tp, &tbuf))
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fail (tidx);
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else if (cmp_time_s (tp, &tbuf2))
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fail (tidx);
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}
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}
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}
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int
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main (int argc, char **argv)
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{
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(void)argc;
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(void)argv;
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/* If we do not have timegm, we use mktime. However, we need to use
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UTC in this case so that the 20380118T235959 test does not fail
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for other timezones. */
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#ifndef HAVE_TIMEGM
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# ifdef HAVE_SETENV
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setenv ("TZ", "UTC", 1);
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#else
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putenv (xstrdup ("TZ=UTC"));
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#endif
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tzset ();
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#endif
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test_timegm ();
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return 0;
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}
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