unit-tests/test-cases/image-state-deny-dlclose/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 <stdbool.h>  // fprintf(), NULL
  24 #include <stdio.h>  // fprintf(), NULL
  25 #include <stdlib.h> // exit(), EXIT_SUCCESS
  26 #include <stdbool.h>
  27 #include <string.h>
  28 #include <mach-o/dyld.h>
  29 #include <mach-o/dyld_priv.h>
  30 #include <dlfcn.h>
  31
  32 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
  33
  34
  35 int main(int argc, const char* argv[])
  36 {
  37         // open and close base
  38         void* h1 = dlopen("libbase.dylib", RTLD_LAZY);
  39         if ( h1 == NULL ) {
  40                 FAIL("image-state-deny-dlclose: can't dlopen libbase.dylib: %s", dlerror());
  41                 return EXIT_SUCCESS;
  42         }
  43         dlclose(h1);
  44
  45         // if base was unloaded, then this dlopen will jump to neverland
  46         void* h2 = dlopen("libfoo.dylib", RTLD_LAZY);
  47         if ( h2 == NULL ) {
  48                 FAIL("image-state-deny-dlclose: can't dlopen libfoo.dylib: %s", dlerror());
  49                 return EXIT_SUCCESS;
  50         }
  51
  52         void* h3 = dlopen("libbase.dylib", RTLD_LAZY);
  53         if ( h3 == NULL ) {
  54                 FAIL("image-state-deny-dlclose: can't dlopen libbase.dylib: %s", dlerror());
  55                 return EXIT_SUCCESS;
  56         }
  57         dlclose(h3);
  58
  59         dlclose(h2);
  60
  61
  62         PASS("image-state-deny-dlclose");
  63
  64         return EXIT_SUCCESS;
  65 }