1/* Error-checking wrappers for memstream functions.
2 Copyright (C) 2016-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <support/xmemstream.h>
20
21#include <errno.h>
22#include <stdlib.h>
23#include <support/check.h>
24#include <support/xstdio.h>
25
26void
27xopen_memstream (struct xmemstream *stream)
28{
29 int old_errno = errno;
30 *stream = (struct xmemstream) {};
31 stream->out = open_memstream (&stream->buffer, &stream->length);
32 if (stream->out == NULL)
33 FAIL_EXIT1 ("open_memstream: %m");
34 errno = old_errno;
35}
36
37void
38xfclose_memstream (struct xmemstream *stream)
39{
40 xfclose (stream->out);
41 stream->out = NULL;
42}
43