unit-tests/test-cases/dlopen_preflight-basic/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 // By returning a string, we prevent that image from loading.
  36 // We just prevent any image with "bar" in its name from loading.
  37 //
  38
  39 static const char* batchMappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
  40 {
  41         //for (uint32_t i=0; i < infoCount; ++i) {
  42         //      fprintf(stderr, "batch mapped: %d/%d %s\n", i, infoCount, info[i].imageFilePath);
  43         //}
  44         for (uint32_t i=0; i < infoCount; ++i) {
  45                 if ( strstr(info[i].imageFilePath, "bar") != NULL )
  46                         return "cannot load bar";
  47         }
  48         return NULL;
  49 }
  50
  51 static const char* singleMappedHandler(enum dyld_image_states state, uint32_t infoCount, const struct dyld_image_info info[])
  52 {
  53         //fprintf(stderr, "single mapped: %s\n", info[0].imageFilePath);
  54         if ( strstr(info[0].imageFilePath, "bar") != NULL )
  55                 return "can't load bar";
  56         return NULL;
  57 }
  58
  59
  60 int main(int argc, const char* argv[])
  61 {
  62         // tell dyld we want to know when images are mapped
  63         if ( argc > 1 )
  64                 dyld_register_image_state_change_handler(dyld_image_state_dependents_mapped, true, batchMappedHandler);
  65         else
  66                 dyld_register_image_state_change_handler(dyld_image_state_mapped, false, singleMappedHandler);
  67
  68         if ( dlopen_preflight("foo.bundle") ) {
  69                 FAIL("dlopen_preflight-basic foo.bundle should not be loadable");
  70                 exit(0);
  71         }
  72         //fprintf(stderr, "foo.bundle, dlerror: %s\n", dlerror());
  73
  74         if ( dlopen_preflight("bar.bundle") ) {
  75                 FAIL("dlopen_preflight-basic bar.bundle should not be loadable");
  76                 exit(0);
  77         }
  78         //fprintf(stderr, "bar.bundle, dlerror: %s\n", dlerror());
  79
  80         if ( dlopen_preflight("bogus.bundle") ) {
  81                 FAIL("dlopen_preflight-basic bogus.bundle should not be loadable");
  82                 exit(0);
  83         }
  84         //fprintf(stderr, "bogus.bundle, dlerror: %s\n", dlerror());
  85
  86         if ( ! dlopen_preflight("/usr/lib/libSystem.B.dylib") ) {
  87                 FAIL("dlopen_preflight-basic libSystem should be loadable, but got: %s", dlerror());
  88                 exit(0);
  89         }
  90
  91
  92         PASS("dlopen_preflight-basic");
  93
  94         return EXIT_SUCCESS;
  95 }