1/* Exercise dlerror_run in elf/dl-libc.c after dlmopen, via NSS. Helper module.
2 Copyright (C) 2021-2022 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 <netdb.h>
20#include <nss.h>
21
22void
23call_gethostbyname (void)
24{
25 __nss_configure_lookup (dbname: "hosts", string: "files");
26 /* This should not terminate the process due to a missing
27 _nss_files_getcanonname_r symbol. */
28 gethostbyname (name: "localhost");
29}
30

source code of glibc/elf/tst-dlmopen-gethostbyname-mod.c