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tst: Add test for utime

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

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 2021-02-24 22:19:06 +01:00
parent e0685bacd5
commit dec445d40d
2 changed files with 88 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-timerfd tst-ppoll tst-futimens tst-utime
tests-internal += tst-ofdlocks-compat tst-sigcontext-get_pc
CFLAGS-tst-sigcontext-get_pc.c = -fasynchronous-unwind-tables

87
sysdeps/unix/sysv/linux/tst-utime.c Normal file
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@ -0,0 +1,87 @@
/* Test for utime.
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/types.h>
#include <utime.h>
#include <support/check.h>
#include <support/xunistd.h>
#include <support/temp_file.h>
static int temp_fd = -1;
char *testfile;
/* struct utimbuf with Y2038 threshold minus 2 and 1 seconds. */
const static struct utimbuf t1 = { 0x7FFFFFFE, 0x7FFFFFFF };
/* struct utimbuf with Y2038 threshold plus 1 and 2 seconds. */
const static struct utimbuf t2 = { 0x80000001ULL, 0x80000002ULL };
/* struct utimbuf around Y2038 threshold. */
const static struct utimbuf t3 = { 0x7FFFFFFE, 0x80000002ULL };
#define PREPARE do_prepare
static void
do_prepare (int argc, char *argv[])
{
temp_fd = create_temp_file ("utime", &testfile);
TEST_VERIFY_EXIT (temp_fd > 0);
}
static int
test_utime_helper (const struct utimbuf *ut)
{
struct stat64 st;
int result;
time_t t;
/* Check if we run on port with 32 bit time_t size */
if (__builtin_add_overflow (ut->actime, 0, &t))
{
printf("time_t overflow!");
return 0;
}
result = utime (testfile, ut);
TEST_VERIFY_EXIT (result == 0);
xfstat (temp_fd, &st);
/* Check if seconds for actime match */
TEST_COMPARE (st.st_atime, ut->actime);
/* Check if seconds for modtime match */
TEST_COMPARE (st.st_mtime, ut->modtime);
return 0;
}
static int
do_test (void)
{
test_utime_helper (&t1);
test_utime_helper (&t2);
test_utime_helper (&t3);
return 0;
}
#include <support/test-driver.c>