unit-tests/test-cases/bundle-v-dylib/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>
  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
  33 #include "test.h" // PASS(), FAIL()
  34
  35
  36 void loadAsBundleFromMemory(const char* path)
  37 {
  38         int fd = open(path, O_RDONLY, 0);
  39         if ( fd == -1 ) {
  40                 FAIL("bundle-v-dylib: open() failed");
  41                 exit(0);
  42         }
  43
  44         struct stat stat_buf;
  45         if ( fstat(fd, &stat_buf) == -1) {
  46                 FAIL("bundle-v-dylib: fstat() failed");
  47                 exit(0);
  48         }
  49
  50         void* loadAddress = mmap(NULL, stat_buf.st_size, PROT_READ, MAP_FILE | MAP_PRIVATE, fd, 0);
  51         if ( loadAddress == ((void*)(-1)) ) {
  52                 FAIL("bundle-v-dylib: mmap() failed");
  53                 exit(0);
  54         }
  55
  56         close(fd);
  57
  58         NSObjectFileImage ofi;
  59         if ( NSCreateObjectFileImageFromMemory(loadAddress, stat_buf.st_size, &ofi) == NSObjectFileImageSuccess ) {
  60                 FAIL("bundle-v-dylib: NSCreateObjectFileImageFromMemory() incorrectly allowed %s to be loaded", path);
  61                 exit(0);
  62         }
  63 }
  64
  65 void loadAsBundle(const char* path)
  66 {
  67         NSObjectFileImage ofi;
  68         if ( NSCreateObjectFileImageFromFile(path, &ofi) == NSObjectFileImageSuccess ) {
  69                 FAIL("bundle-v-dylib: NSCreateObjectFileImageFromFile() incorrectly allowed %s to be loaded", path);
  70                 exit(0);
  71         }
  72 }
  73
  74 void loadAsDylib(const char* path)
  75 {
  76         if ( NSAddImage(path, NSADDIMAGE_OPTION_RETURN_ON_ERROR) != NULL ) {
  77                 FAIL("bundle-v-dylib: NSAddImage() incorrectly allowed %s to be loaded", path);
  78                 exit(0);
  79         }
  80 }
  81
  82 extern void bar();
  83
  84 int main()
  85 {
  86         int dummy;
  87
  88         // verify that NSAddImage fails to load MH_BUNDLE
  89         loadAsDylib("foo.bundle");
  90
  91         // verify that NSCreateObjectFileImageFromFile fails to load MH_DYLIB
  92         loadAsBundle("foo.dylib");
  93
  94         // verify that NSCreateObjectFileImageFromFile fails to load MH_DYLIB already linked against main
  95         loadAsBundle("bar.dylib");
  96
  97         // verify that bar.dylib was not unloaded when above failed
  98         bar();
  99
 100         // try loading a dylib from memory using bundle API's
 101         loadAsBundleFromMemory("foo2.dylib");
 102
 103         // verify that dyld data structures are not wanked by scanning all images
 104         _dyld_get_image_header_containing_address(&dummy);
 105
 106         PASS("bundle-v-dylib");
 107         return 0;
 108 }