glibc/elf/tst-dlmopen-gethostbyname-mod.c

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/* Exercise dlerror_run in elf/dl-libc.c after dlmopen, via NSS. Helper module.
Copyright (C) 2021-2024 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 <netdb.h>
#include <nss.h>
void
call_gethostbyname (void)
{
__nss_configure_lookup ("hosts", "files");
/* This should not terminate the process due to a missing
_nss_files_getcanonname_r symbol. */
gethostbyname ("localhost");
}