/*      $NetBSD: t_dlerror-false.c,v 1.3 2022/01/14 07:34:07 skrll Exp $        */

/*
* Copyright (c) 2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#include <sys/types.h>

#include <atf-c.h>
#include <dlfcn.h>
#include <link_elf.h>

#include "h_macros.h"

ATF_TC(rtld_dlerror_false);
ATF_TC_HEAD(rtld_dlerror_false, tc)
{
       atf_tc_set_md_var(tc, "descr",
           "error set by dlopen persists past a successful dlopen call");
}

ATF_TC_BODY(rtld_dlerror_false, tc)
{
       void *handle, *sym;
       char *error;

       /*
        *
        * Test for dlerror() being set by a successful library open.
        * Requires that the rpath be set to something that does not
        * include libm.so.
        */

       handle = dlopen("libm.so", RTLD_LAZY);
       error = dlerror();
       ATF_CHECK(error == NULL);
       ATF_CHECK(handle != NULL);

       sym = dlsym(handle, "sin");
       error = dlerror();
       ATF_CHECK(sym != NULL);
       ATF_CHECK(error == NULL);

       dlclose(handle);
       error = dlerror();

       ATF_CHECK(error == NULL);

}

ATF_TP_ADD_TCS(tp)
{
       ATF_TP_ADD_TC(tp, rtld_dlerror_false);

       return atf_no_error();
}