mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
/* fmemopen tests for BZ#1930 and BZ#20005.
|
|
Copyright (C) 2016-2023 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 <assert.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
|
|
|
|
/* Check if fflush does not reset the file position. */
|
|
static int
|
|
do_test (void)
|
|
{
|
|
char buffer[500] = "x";
|
|
|
|
FILE *stream = fmemopen (buffer, sizeof (buffer), "r+");
|
|
if (stream == NULL)
|
|
{
|
|
printf ("error: fmemopen could not open stream\n");
|
|
return 1;
|
|
}
|
|
|
|
const char test[] = "test";
|
|
|
|
size_t r = fwrite (test, sizeof (char), sizeof (test), stream);
|
|
if (r != sizeof (test))
|
|
{
|
|
printf ("error: fwrite returned %zu, expected %zu\n", r, sizeof (test));
|
|
return 1;
|
|
}
|
|
|
|
r = ftell (stream);
|
|
if (r != sizeof (test))
|
|
{
|
|
printf ("error: ftell return %zu, expected %zu\n", r, sizeof (test));
|
|
return 1;
|
|
}
|
|
|
|
if (fflush (stream) != 0)
|
|
{
|
|
printf ("error: fflush failed\n");
|
|
return 1;
|
|
}
|
|
|
|
r = ftell (stream);
|
|
if (r != sizeof (test))
|
|
{
|
|
printf ("error: ftell return %zu, expected %zu\n", r, sizeof (test));
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|