mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-08 14:20:07 +00:00
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/* Verify that RTLD_NOLOAD works as expected.
|
|
|
|
Copyright (C) 2016-2024 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 <dlfcn.h>
|
|
#include <stdio.h>
|
|
#include <gnu/lib-names.h>
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
/* Test that no object is loaded with RTLD_NOLOAD. */
|
|
void *h1 = dlopen (LIBM_SO, RTLD_LAZY | RTLD_NOLOAD);
|
|
if (h1 != NULL)
|
|
{
|
|
printf ("h1: DSO has been loaded while it should have not\n");
|
|
return 1;
|
|
}
|
|
|
|
/* This used to segfault in some glibc versions. */
|
|
void *h2 = dlopen (LIBM_SO, RTLD_LAZY | RTLD_NOLOAD | RTLD_NODELETE);
|
|
if (h2 != NULL)
|
|
{
|
|
printf ("h2: DSO has been loaded while it should have not\n");
|
|
return 1;
|
|
}
|
|
|
|
/* Test that loading an already loaded object returns the same. */
|
|
void *h3 = dlopen (LIBM_SO, RTLD_LAZY);
|
|
if (h3 == NULL)
|
|
{
|
|
printf ("h3: failed to open DSO: %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
void *h4 = dlopen (LIBM_SO, RTLD_LAZY | RTLD_NOLOAD);
|
|
if (h4 == NULL)
|
|
{
|
|
printf ("h4: failed to open DSO: %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
if (h4 != h3)
|
|
{
|
|
printf ("h4: should return the same object\n");
|
|
return 1;
|
|
}
|
|
|
|
/* Cleanup */
|
|
if (dlclose (h3) != 0)
|
|
{
|
|
printf ("h3: dlclose failed: %s\n", dlerror ());
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|