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tst: Add test for futimens

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This patch provides test for futimens. It uses wrapper, which
reads access and modification time to compare them with ones
written by futimens.

Moreover, access and modification times beyond the Y2038 threshold
date (i.e. 32 bit time_t overflow) are also checked.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Lukasz Majewski 2021-02-08 10:58:44 +01:00
parent e81402f246
commit e0685bacd5
2 changed files with 85 additions and 1 deletions
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2
sysdeps/unix/sysv/linux/Makefile
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@ -107,7 +107,7 @@ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
test-errno-linux tst-memfd_create tst-mlock2 tst-pkey \
tst-rlimit-infinity tst-ofdlocks tst-gettid tst-gettid-kill \
tst-tgkill tst-sysvsem-linux tst-sysvmsg-linux tst-sysvshm-linux \
tst-timerfd tst-ppoll
tst-timerfd tst-ppoll tst-futimens
tests-internal += tst-ofdlocks-compat tst-sigcontext-get_pc
CFLAGS-tst-sigcontext-get_pc.c = -fasynchronous-unwind-tables

84
sysdeps/unix/sysv/linux/tst-futimens.c Normal file
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@ -0,0 +1,84 @@
/* Test for futimens
Copyright (C) 2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <support/check.h>
#include <support/xunistd.h>
#include <support/temp_file.h>
static int temp_fd = -1;
/* struct timespec array with Y2038 threshold minus 2 and 1 seconds. */
const struct timespec t1[2] = { { 0x7FFFFFFE, 0 }, { 0x7FFFFFFF, 0 } };
/* struct timespec array with Y2038 threshold plus 1 and 2 seconds. */
const struct timespec t2[2] = { { 0x80000001ULL, 0 }, { 0x80000002ULL, 0 } };
/* struct timespec array around Y2038 threshold. */
const struct timespec t3[2] = { { 0x7FFFFFFE, 0 }, { 0x80000002ULL, 0 } };
#define PREPARE do_prepare
static void
do_prepare (int argc, char *argv[])
{
temp_fd = create_temp_file ("futimensat", NULL);
TEST_VERIFY_EXIT (temp_fd > 0);
}
static int
test_futimens_helper (const struct timespec *ts)
{
struct stat64 st;
int result;
time_t t;
/* Check if we run on port with 32 bit time_t size */
if (__builtin_add_overflow (ts->tv_sec, 0, &t))
{
printf("time_t overflow!");
return 0;
}
result = futimens (temp_fd, ts);
TEST_VERIFY_EXIT (result == 0);
xfstat (temp_fd, &st);
/* Check if seconds for atime match */
TEST_COMPARE (st.st_atime, ts[0].tv_sec);
/* Check if seconds for mtime match */
TEST_COMPARE (st.st_mtime, ts[1].tv_sec);
return 0;
}
static int
do_test (void)
{
test_futimens_helper (&t1[0]);
test_futimens_helper (&t2[0]);
test_futimens_helper (&t3[0]);
return 0;
}
#include <support/test-driver.c>