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tst: Add test for utimes

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This patch provides test for utimes. It uses wrapper to read
access and modification times to compare them with ones written by
utimes.

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
2021-02-25 00:58:56 +01:00
parent dec445d40d
commit 9871ae0ab4
2 changed files with 89 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-futimens tst-utime
tst-timerfd tst-ppoll tst-futimens tst-utime tst-utimes
tests-internal += tst-ofdlocks-compat tst-sigcontext-get_pc
CFLAGS-tst-sigcontext-get_pc.c = -fasynchronous-unwind-tables

88
sysdeps/unix/sysv/linux/tst-utimes.c Normal file
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@ -0,0 +1,88 @@
/* Test for utimes
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 <sys/time.h>
#include <support/check.h>
#include <support/xunistd.h>
#include <support/temp_file.h>
static int temp_fd = -1;
char *testfile;
/* struct timeval array with Y2038 threshold minus 2 and 1 seconds. */
const static struct timeval t1[2] = { { 0x7FFFFFFE, 0 }, { 0x7FFFFFFF, 0 } };
/* struct timeval array with Y2038 threshold plus 1 and 2 seconds. */
const static
struct timeval t2[2] = { { 0x80000001ULL, 0 }, { 0x80000002ULL, 0 } };
/* struct timeval array around Y2038 threshold. */
const static
struct timeval t3[2] = { { 0x7FFFFFFE, 0 }, { 0x80000002ULL, 0 } };
#define PREPARE do_prepare
static void
do_prepare (int argc, char *argv[])
{
temp_fd = create_temp_file ("utimes", &testfile);
TEST_VERIFY_EXIT (temp_fd > 0);
}
static int
test_utime_helper (const struct timeval *tv)
{
struct stat64 st;
int result;
time_t t;
/* Check if we run on port with 32 bit time_t size */
if (__builtin_add_overflow (tv->tv_sec, 0, &t))
{
printf("time_t overflow!");
return 0;
}
result = utimes (testfile, tv);
TEST_VERIFY_EXIT (result == 0);
xfstat (temp_fd, &st);
/* Check if seconds for atime match */
TEST_COMPARE (st.st_atime, tv[0].tv_sec);
/* Check if seconds for mtime match */
TEST_COMPARE (st.st_mtime, tv[1].tv_sec);
return 0;
}
static int
do_test (void)
{
test_utime_helper (&t1[0]);
test_utime_helper (&t2[0]);
test_utime_helper (&t3[0]);
return 0;
}
#include <support/test-driver.c>