1 | /* Test for localtime bug in year 2039 (bug 22639). |
2 | Copyright (C) 2017-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <time.h> |
20 | #include <stdlib.h> |
21 | #include <stdio.h> |
22 | #include <string.h> |
23 | #include <support/check.h> |
24 | |
25 | static int |
26 | do_test (void) |
27 | { |
28 | TEST_VERIFY_EXIT (setenv ("TZ" , "PST8PDT,M3.2.0,M11.1.0" , 1) == 0); |
29 | tzset (); |
30 | if (sizeof (time_t) > 4) |
31 | { |
32 | time_t ouch = (time_t) 2187810000LL; |
33 | char buf[500]; |
34 | struct tm *tm = localtime (&ouch); |
35 | TEST_VERIFY_EXIT (tm != NULL); |
36 | TEST_VERIFY_EXIT (strftime (buf, sizeof buf, "%Y-%m-%d %H:%M:%S %Z" , tm) |
37 | > 0); |
38 | puts (s: buf); |
39 | TEST_VERIFY (strcmp (buf, "2039-04-30 14:00:00 PDT" ) == 0); |
40 | |
41 | /* Same as before but for localtime_r. */ |
42 | struct tm tmd; |
43 | tm = localtime_r (timer: &ouch, tp: &tmd); |
44 | TEST_VERIFY_EXIT (tm == &tmd); |
45 | |
46 | TEST_VERIFY_EXIT (strftime (buf, sizeof buf, "%Y-%m-%d %H:%M:%S %Z" , tm) |
47 | > 0); |
48 | puts (s: buf); |
49 | TEST_VERIFY (strcmp (buf, "2039-04-30 14:00:00 PDT" ) == 0); |
50 | } |
51 | else |
52 | FAIL_UNSUPPORTED ("32-bit time_t" ); |
53 | return 0; |
54 | } |
55 | |
56 | #include <support/test-driver.c> |
57 | |