glibc/elf/tst-dlmopen-gethostbyname-mod.c
Florian Weimer c2059edce2 elf: Use _dl_catch_error from base namespace in dl-libc.c [BZ #27646]
dlerrror_run in elf/dl-libc.c needs to call GLRO (dl_catch_error)
from the base namespace, just like the exported dlerror
implementation.

Fixes commit b2964eb1d9 ("dlfcn:
Failures after dlmopen should not terminate process [BZ #24772]").

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2021-06-17 15:06:46 +02:00

30 lines
1.1 KiB
C

/* Exercise dlerror_run in elf/dl-libc.c after dlmopen, via NSS. Helper module.
Copyright (C) 2021 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");
}