Home | History | Annotate | Line # | Download | only in ld.elf_so 
      1 /*	$NetBSD: t_dlerror-false.c,v 1.3 2022/01/14 07:34:07 skrll 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 
     38 ATF_TC(rtld_dlerror_false);
     39 ATF_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 
     45 ATF_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 
     74 ATF_TP_ADD_TCS(tp)
     75 {
     76 	ATF_TP_ADD_TC(tp, rtld_dlerror_false);
     77 
     78 	return atf_no_error();
     79 }
     80