unit-tests/test-cases/dlopen-RTLD_LOCAL-ignore/main.c

   1 /*
   2  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 #include <stdio.h>  // fprintf(), NULL
  24 #include <stdlib.h> // exit(), EXIT_SUCCESS
  25 #include <string.h>
  26 #include <dlfcn.h>
  27
  28 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
  29
  30
  31
  32 int main(int argc, const char* argv[])
  33 {
  34         // main alreadly links with foo.dylib
  35         // now dynamically link with bar.dylib
  36         void* handle = dlopen("./bar.dylib", RTLD_GLOBAL);
  37         if ( handle == NULL ) {
  38                 const char* msg = dlerror();
  39                 FAIL("dlopen(\"%s\", RTLD_GLOBAL) failed: %s", argv[1], msg);
  40                 return EXIT_SUCCESS;
  41         }
  42
  43         // verify we can find _foo
  44         void* fooSym = dlsym(RTLD_DEFAULT, "foo");
  45         if ( fooSym == NULL ) {
  46                 const char* msg = dlerror();
  47                 FAIL("dlsym(RTLD_DEFAULT, \"foo\") failed: %s", msg);
  48                 return EXIT_SUCCESS;
  49         }
  50
  51         // verify we can find _bar
  52         void* barSym = dlsym(RTLD_DEFAULT, "bar");
  53         if ( barSym == NULL ) {
  54                 const char* msg = dlerror();
  55                 FAIL("dlsym(RTLD_DEFAULT, \"bar\") failed: %s", msg);
  56                 return EXIT_SUCCESS;
  57         }
  58
  59         // open foo privately (since it was already opened global, RTLD_LOCAL should have no effect
  60         void* handleFoo = dlopen("./foo.dylib", RTLD_LOCAL);
  61         if ( handleFoo == NULL ) {
  62                 const char* msg = dlerror();
  63                 FAIL("dlopen(\"%s\", RTLD_LOCAL) failed: %s", "./foo.dylib", msg);
  64                 return EXIT_SUCCESS;
  65         }
  66
  67         // open foo privately (since it was already opened global, RTLD_LOCAL should have no effect
  68         void* handleBar = dlopen("./bar.dylib", RTLD_LOCAL);
  69         if ( handleBar == NULL ) {
  70                 const char* msg = dlerror();
  71                 FAIL("dlopen(\"%s\", RTLD_LOCAL) failed: %s", "./bar.dylib", msg);
  72                 return EXIT_SUCCESS;
  73         }
  74
  75         // verify we can still find _foo
  76         fooSym = dlsym(RTLD_DEFAULT, "foo");
  77         if ( fooSym == NULL ) {
  78                 const char* msg = dlerror();
  79                 FAIL("dlsym(RTLD_DEFAULT, \"foo\") failed: %s", msg);
  80                 return EXIT_SUCCESS;
  81         }
  82
  83         // verify we can still find _bar
  84         barSym = dlsym(RTLD_DEFAULT, "bar");
  85         if ( barSym == NULL ) {
  86                 const char* msg = dlerror();
  87                 FAIL("dlsym(RTLD_DEFAULT, \"bar\") failed: %s", msg);
  88                 return EXIT_SUCCESS;
  89         }
  90
  91         PASS("dlopen-RTLD_LOCAL-ignore");
  92         return EXIT_SUCCESS;
  93 }