unit-tests/test-cases/dlopen-RTLD_NOLOAD/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 /// This tests that RTLD_NOLOAD binds finds existing images
  33 ///
  34
  35
  36 int main()
  37 {
  38         // main links against libfoo.dylib so it should already be loaded
  39         void* handle = dlopen("libfoo.dylib", RTLD_NOLOAD);
  40         if ( handle == NULL ) {
  41                 const char* msg = dlerror();
  42                 // Panther dlcompat does not check existing loaded images (only those opened with dlopen)
  43                 if ( strstr(msg, "RTLD_NOLOAD") != NULL )
  44                         XFAIL("dlopen(libfoo.dylib, RTLD_NOLOAD) failed but it should have worked: %s", msg);
  45                 else
  46                         FAIL("dlopen(libfoo.dylib, RTLD_NOLOAD) failed but it should have worked: %s", msg);
  47                 return 0;
  48         }
  49         void* sym = dlsym(handle, "foo");
  50         if ( sym == NULL ) {
  51                 const char* msg = dlerror();
  52                 FAIL("dlsym(handle, \"foo\") failed but it should have worked: %s", msg);
  53                 return 0;
  54         }
  55
  56         // libfobbulate.dylib does not exist, so load should return NULL
  57         void* handle2 = dlopen("libfobbulate.dylib", RTLD_NOLOAD);
  58         if ( handle2 != NULL ) {
  59                 FAIL("dlopen(libfobbulate.dylib, RTLD_NOLOAD) succeeded but it should have failed");
  60                 return 0;
  61         }
  62
  63
  64
  65         PASS("dlopen-RTLD_NOLOAD");
  66         return 0;
  67 }