mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 14:20:07 +00:00
109 lines
3.5 KiB
C
109 lines
3.5 KiB
C
/* Test for memory leak with large width (BZ#25691).
|
|
Copyright (C) 2020-2024 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <wchar.h>
|
|
#include <stdint.h>
|
|
#include <locale.h>
|
|
|
|
#include <mcheck.h>
|
|
#include <support/check.h>
|
|
#include <support/support.h>
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
mtrace ();
|
|
|
|
/* For 's' conversion specifier with 'l' modifier the array must be
|
|
converted to multibyte characters up to the precision specific
|
|
value. */
|
|
{
|
|
/* The input size value is to force a heap allocation on temporary
|
|
buffer (in the old implementation). */
|
|
const size_t winputsize = 64 * 1024 + 1;
|
|
wchar_t *winput = xmalloc (winputsize * sizeof (wchar_t));
|
|
wmemset (winput, L'a', winputsize - 1);
|
|
winput[winputsize - 1] = L'\0';
|
|
|
|
char result[9];
|
|
const char expected[] = "aaaaaaaa";
|
|
int ret;
|
|
|
|
ret = snprintf (result, sizeof (result), "%.65537ls", winput);
|
|
TEST_COMPARE (ret, winputsize - 1);
|
|
TEST_COMPARE_BLOB (result, sizeof (result), expected, sizeof (expected));
|
|
|
|
ret = snprintf (result, sizeof (result), "%ls", winput);
|
|
TEST_COMPARE (ret, winputsize - 1);
|
|
TEST_COMPARE_BLOB (result, sizeof (result), expected, sizeof (expected));
|
|
|
|
free (winput);
|
|
}
|
|
|
|
/* For 's' conversion specifier the array is interpreted as a multibyte
|
|
character sequence and converted to wide characters up to the precision
|
|
specific value. */
|
|
{
|
|
/* The input size value is to force a heap allocation on temporary
|
|
buffer (in the old implementation). */
|
|
const size_t mbssize = 32 * 1024;
|
|
char *mbs = xmalloc (mbssize);
|
|
memset (mbs, 'a', mbssize - 1);
|
|
mbs[mbssize - 1] = '\0';
|
|
|
|
const size_t expectedsize = 32 * 1024;
|
|
wchar_t *expected = xmalloc (expectedsize * sizeof (wchar_t));
|
|
wmemset (expected, L'a', expectedsize - 1);
|
|
expected[expectedsize-1] = L'\0';
|
|
|
|
const size_t resultsize = mbssize * sizeof (wchar_t);
|
|
wchar_t *result = xmalloc (resultsize);
|
|
int ret;
|
|
|
|
ret = swprintf (result, mbssize, L"%.65537s", mbs);
|
|
TEST_COMPARE (ret, mbssize - 1);
|
|
TEST_COMPARE_BLOB (result, (ret + 1) * sizeof (wchar_t),
|
|
expected, expectedsize * sizeof (wchar_t));
|
|
|
|
ret = swprintf (result, mbssize, L"%1$.65537s", mbs);
|
|
TEST_COMPARE (ret, mbssize - 1);
|
|
TEST_COMPARE_BLOB (result, (ret + 1) * sizeof (wchar_t),
|
|
expected, expectedsize * sizeof (wchar_t));
|
|
|
|
/* Same test, but with an invalid multibyte sequence. */
|
|
mbs[mbssize - 2] = 0xff;
|
|
|
|
ret = swprintf (result, mbssize, L"%.65537s", mbs);
|
|
TEST_COMPARE (ret, -1);
|
|
|
|
ret = swprintf (result, mbssize, L"%1$.65537s", mbs);
|
|
TEST_COMPARE (ret, -1);
|
|
|
|
free (mbs);
|
|
free (result);
|
|
free (expected);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|