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/* Tests for the getrandom functions.
Copyright (C) 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 <gnu/lib-names.h>
#include <support/check.h>
#include <support/xdlfcn.h>
#include <support/xthread.h>
#include <sys/random.h>
static __typeof (getrandom) *getrandom_ptr;
static void *
threadfunc (void *ignored)
{
char buffer;
TEST_COMPARE (getrandom_ptr (&buffer, 1, 0), 1);
return NULL;
}
static int
do_test (void)
{
/* Check if issuing getrandom in the secondary libc.so works when
the vDSO might be potentially used. */
void *handle = xdlmopen (LM_ID_NEWLM, LIBC_SO, RTLD_NOW);
getrandom_ptr = xdlsym (handle, "getrandom");
for (int i = 0; i < 1000; ++i)
xpthread_join (xpthread_create (NULL, threadfunc, NULL));
return 0;
}
#include <support/test-driver.c>
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