diff options
Diffstat (limited to 'common/t-timestuff.c')
| -rw-r--r-- | common/t-timestuff.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/common/t-timestuff.c b/common/t-timestuff.c new file mode 100644 index 0000000..6a75925 --- /dev/null +++ b/common/t-timestuff.c @@ -0,0 +1,175 @@ +/* t-timestuff.c - Regression tests for time functions + * Copyright (C) 2007 Free Software Foundation, Inc. + * + * This file is part of GnuPG. + * + * GnuPG is free software; you can redistribute and/or modify this + * part of GnuPG under the terms of either + * + * - the GNU Lesser General Public License as published by the Free + * Software Foundation; either version 3 of the License, or (at + * your option) any later version. + * + * or + * + * - the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * or both in parallel, as here. + * + * GnuPG 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 copies of the GNU General Public License + * and the GNU Lesser General Public License along with this program; + * if not, see <https://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <time.h> + +#include "mischelp.h" + +#include "t-support.h" + + +static int +cmp_time_s (struct tm *a, struct tm *b) +{ + if (a->tm_year != b->tm_year + || a->tm_mon != b->tm_mon + || a->tm_mday != b->tm_mday + || a->tm_hour != b->tm_hour + || a->tm_min != b->tm_min + || a->tm_sec != b->tm_sec + || a->tm_wday != b->tm_wday + || a->tm_yday != b->tm_yday + || !a->tm_isdst != !b->tm_isdst) + return -1; + return 0; +} + + + +static void +test_timegm (void) +{ + static struct { + int year, mon, mday, hour, min, sec; + } tvalues[] = { + { -1 }, + { -2, 1 }, + { -2, 2 }, + { -2, 86399 }, + { -2, 86400 }, + { -2, 0x7ffffffe }, + { -2, 0x7fffffff }, + /* Note: Because we use mktime below we can only start with the + day after Epoch. */ + { 1970, 0, 2, 0, 0 , 1}, + { 1970, 0, 2, 0, 0 , 2}, + { 1970, 0, 2, 12, 0 , 0}, + { 1970, 0, 2, 23, 59 , 59}, + { 1999, 11, 31, 23, 59 , 59}, + { 2000, 0, 1, 0, 0, 0}, + { 2000, 0, 1, 0, 0, 1}, + { 2010, 11, 31, 23, 59 , 59}, + { 2010, 0, 1, 0, 0, 0}, + { 2010, 0, 1, 0, 0, 1}, + /* On GNU based 32 bit systems the end of all ticks will be on + 20380119T031408 (unless Uli takes compassion on us and changes + time_t to a u64). We check that the previous day is okay. */ + { 2038, 0, 18, 23, 59, 59} + + }; + int tidx; + time_t now, atime; + struct tm tbuf, tbuf2, *tp; + + for (tidx=0; tidx < DIM (tvalues); tidx++) + { + if (tvalues[tidx].year == -1) + { + now = time (NULL); + } + else if (tvalues[tidx].year == -2) + { + now = tvalues[tidx].mon; + } + else + { + memset (&tbuf, 0, sizeof tbuf); + tbuf.tm_year = tvalues[tidx].year - 1900; + tbuf.tm_mon = tvalues[tidx].mon; + tbuf.tm_mday = tvalues[tidx].mday; + tbuf.tm_hour = tvalues[tidx].hour; + tbuf.tm_min = tvalues[tidx].min; + tbuf.tm_sec = tvalues[tidx].sec; +#ifdef HAVE_TIMEGM + now = timegm (&tbuf); +#else + now = mktime (&tbuf); +#endif + } + if (now == (time_t)(-1)) + fail (tidx); + + tp = gmtime (&now); + if (!tp) + fail (tidx); + else + { + tbuf = *tp; + tbuf2 = tbuf; +#ifdef HAVE_TIMEGM + atime = timegm (&tbuf); +#else + atime = mktime (&tbuf); +#endif + if (atime == (time_t)(-1)) + fail (tidx); + else if (atime != now) + fail (tidx); + + tp = gmtime (&atime); + if (!tp) + fail (tidx); + else if (cmp_time_s (tp, &tbuf)) + fail (tidx); + else if (cmp_time_s (tp, &tbuf2)) + fail (tidx); + } + } +} + + + +int +main (int argc, char **argv) +{ + (void)argc; + (void)argv; + + /* If we do not have timegm, we use mktime. However, we need to use + UTC in this case so that the 20380118T235959 test does not fail + for other timezones. */ +#ifndef HAVE_TIMEGM +# ifdef HAVE_SETENV + setenv ("TZ", "UTC", 1); +#else + putenv (xstrdup ("TZ=UTC")); +#endif + tzset (); +#endif + + test_timegm (); + + return 0; +} |