unit-tests/test-cases/bundle-v-dylib/main.c

   1 /*
   2  * Copyright (c) 2005-2009 Apple 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>
  24 #include <stdbool.h>
  25 #include <stdlib.h>
  26 #include <mach-o/dyld.h>
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #include <sys/mman.h>
  30 #include <unistd.h>
  31 #include <fcntl.h>
  32 #include <Availability.h>
  33
  34 #include "test.h" // PASS(), FAIL()
  35
  36 extern void bar();
  37
  38
  39 // NSCreateObjectFileImageFromMemory is only available on Mac OS X - not iPhone OS
  40 #if __MAC_OS_X_VERSION_MIN_REQUIRED
  41
  42 void loadAsBundleFromMemory(const char* path)
  43 {
  44         int fd = open(path, O_RDONLY, 0);
  45         if ( fd == -1 ) {
  46                 FAIL("bundle-v-dylib: open() failed");
  47                 exit(0);
  48         }
  49
  50         struct stat stat_buf;
  51         if ( fstat(fd, &stat_buf) == -1) {
  52                 FAIL("bundle-v-dylib: fstat() failed");
  53                 exit(0);
  54         }
  55
  56         void* loadAddress = mmap(NULL, stat_buf.st_size, PROT_READ, MAP_FILE | MAP_PRIVATE, fd, 0);
  57         if ( loadAddress == ((void*)(-1)) ) {
  58                 FAIL("bundle-v-dylib: mmap() failed");
  59                 exit(0);
  60         }
  61
  62         close(fd);
  63
  64         NSObjectFileImage ofi;
  65         if ( NSCreateObjectFileImageFromMemory(loadAddress, stat_buf.st_size, &ofi) == NSObjectFileImageSuccess ) {
  66                 FAIL("bundle-v-dylib: NSCreateObjectFileImageFromMemory() incorrectly allowed %s to be loaded", path);
  67                 exit(0);
  68         }
  69 }
  70
  71 void loadAsBundle(const char* path)
  72 {
  73         NSObjectFileImage ofi;
  74         if ( NSCreateObjectFileImageFromFile(path, &ofi) == NSObjectFileImageSuccess ) {
  75                 FAIL("bundle-v-dylib: NSCreateObjectFileImageFromFile() incorrectly allowed %s to be loaded", path);
  76                 exit(0);
  77         }
  78 }
  79
  80 void loadAsDylib(const char* path)
  81 {
  82         if ( NSAddImage(path, NSADDIMAGE_OPTION_RETURN_ON_ERROR) != NULL ) {
  83                 FAIL("bundle-v-dylib: NSAddImage() incorrectly allowed %s to be loaded", path);
  84                 exit(0);
  85         }
  86 }
  87
  88 #endif
  89
  90 int main()
  91 {
  92 #if __MAC_OS_X_VERSION_MIN_REQUIRED
  93         int dummy;
  94
  95         // verify that NSAddImage fails to load MH_BUNDLE
  96         loadAsDylib("foo.bundle");
  97
  98         // verify that NSCreateObjectFileImageFromFile fails to load MH_DYLIB
  99         loadAsBundle("foo.dylib");
 100
 101         // verify that NSCreateObjectFileImageFromFile fails to load MH_DYLIB already linked against main
 102         loadAsBundle("bar.dylib");
 103
 104         // verify that bar.dylib was not unloaded when above failed
 105         bar();
 106
 107         // try loading a dylib from memory using bundle API's
 108         loadAsBundleFromMemory("foo2.dylib");
 109
 110         // verify that dyld data structures are not wanked by scanning all images
 111         _dyld_get_image_header_containing_address(&dummy);
 112 #endif
 113         PASS("bundle-v-dylib");
 114         return 0;
 115 }