1/* fopen with error checking.
2 Copyright (C) 2020 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/xstdio.h>
20#include <support/check.h>
21
22size_t
23xgetline (char **lineptr, size_t *n, FILE *stream)
24{
25 TEST_VERIFY (!ferror (stream));
26 ssize_t ret = getline (lineptr, n, stream);
27 if (ferror (stream))
28 {
29 TEST_VERIFY (ret < 0);
30 FAIL_EXIT1 ("getline: %m");
31 }
32 if (feof (stream))
33 {
34 TEST_VERIFY (ret <= 0);
35 return 0;
36 }
37 TEST_VERIFY (ret > 0);
38 return ret;
39}
40