tests/libexec/ld.elf_so/t_dlerror-false.c

   1 /*      $NetBSD: t_dlerror-false.c,v 1.1 2010/12/14 05:57:32 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 }