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/* Test for the long double variants of *w*printf_chk functions.
Copyright (C) 2019-2025 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/>. */
#define _FORTIFY_SOURCE 2
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <wchar.h>
#include <support/capture_subprocess.h>
#include <support/check.h>
static void
do_test_call_varg (FILE *stream, const wchar_t *format, ...)
{
wchar_t string[128];
va_list args;
wprintf (L"%20Ls", L"__vfwprintf_chk: ");
va_start (args, format);
__vfwprintf_chk (stream, 1, format, args);
va_end (args);
wprintf (L"\n");
wprintf (L"%20Ls", L"__vswprintf_chk: ");
va_start (args, format);
__vswprintf_chk (string, 79, 1, 127, format, args);
va_end (args);
wprintf (L"%Ls", string);
wprintf (L"\n");
wprintf (L"%20Ls", L"__vwprintf_chk: ");
va_start (args, format);
__vwprintf_chk (1, format, args);
va_end (args);
wprintf (L"\n");
}
static void
do_test_call_rarg (FILE *stream, const wchar_t *format, long double ld,
double d)
{
wchar_t string[128];
wprintf (L"%20Ls", L"__fwprintf_chk: ");
__fwprintf_chk (stream, 1, format, ld, d);
wprintf (L"\n");
wprintf (L"%20Ls", L"__swprintf_chk: ");
__swprintf_chk (string, 79, 1, 127, format, ld, d);
wprintf (L"%Ls", string);
wprintf (L"\n");
wprintf (L"%20Ls", L"__wprintf_chk: ");
__wprintf_chk (1, format, ld, d);
wprintf (L"\n");
}
static void
do_test_call (void)
{
long double ld = -1;
double d = -1;
/* Print in decimal notation. */
do_test_call_rarg (stdout, L"%.10Lf, %.10f", ld, d);
do_test_call_varg (stdout, L"%.10Lf, %.10f", ld, d);
/* Print in hexadecimal notation. */
do_test_call_rarg (stdout, L"%.10La, %.10a", ld, d);
do_test_call_varg (stdout, L"%.10La, %.10a", ld, d);
/* Test positional parameters. */
do_test_call_varg (stdout, L"%3$Lf, %2$Lf, %1$f",
(double) 1, (long double) 2, (long double) 3);
}
static int
do_test (void)
{
struct support_capture_subprocess result;
result = support_capture_subprocess ((void *) &do_test_call, NULL);
/* Compare against the expected output. */
const char *expected =
" __fwprintf_chk: -1.0000000000, -1.0000000000\n"
" __swprintf_chk: -1.0000000000, -1.0000000000\n"
" __wprintf_chk: -1.0000000000, -1.0000000000\n"
" __vfwprintf_chk: -1.0000000000, -1.0000000000\n"
" __vswprintf_chk: -1.0000000000, -1.0000000000\n"
" __vwprintf_chk: -1.0000000000, -1.0000000000\n"
" __fwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
" __swprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
" __wprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
" __vfwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
" __vswprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
" __vwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
" __vfwprintf_chk: 3.000000, 2.000000, 1.000000\n"
" __vswprintf_chk: 3.000000, 2.000000, 1.000000\n"
" __vwprintf_chk: 3.000000, 2.000000, 1.000000\n";
TEST_COMPARE_STRING (expected, result.out.buffer);
return 0;
}
#include <support/test-driver.c>
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