t_dlerror-false.c revision 314817 
1/*	$NetBSD: t_dlerror-false.c,v 1.2 2017/01/13 21:30:42 christos Exp $	*/
2
3/*
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
17 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
23 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30#include <sys/types.h>
31
32#include <atf-c.h>
33#include <dlfcn.h>
34#include <link_elf.h>
35
36#include "h_macros.h"
37
38ATF_TC(rtld_dlerror_false);
39ATF_TC_HEAD(rtld_dlerror_false, tc)
40{
41	atf_tc_set_md_var(tc, "descr",
42	    "error set by dlopen persists past a successful dlopen call");
43}
44
45ATF_TC_BODY(rtld_dlerror_false, tc)
46{
47	void *handle, *sym;
48	char *error;
49
50	/*
51	 *
52	 * Test for dlerror() being set by a successful library open.
53	 * Requires that the rpath be set to something that does not
54	 * include libm.so.
55	 */
56
57	handle = dlopen("libm.so", RTLD_LAZY);
58	error = dlerror();
59	ATF_CHECK(error == NULL);
60	ATF_CHECK(handle != NULL);
61
62	sym = dlsym(handle, "sin");
63	error = dlerror();
64	ATF_CHECK(sym != NULL);
65	ATF_CHECK(error == NULL);
66
67	dlclose(handle);
68	error = dlerror();
69
70	ATF_CHECK(error == NULL);
71
72}
73
74ATF_TP_ADD_TCS(tp)
75{
76	ATF_TP_ADD_TC(tp, rtld_dlerror_false);
77
78	return atf_no_error();
79}
80