dyld-43.tar.gz
[apple/dyld.git] / unit-tests / test-cases / dlopen-zero / 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 <dlfcn.h>
26
27 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
28
29
30 int foo()
31 {
32 return 42;
33 }
34
35
36 int main()
37 {
38 // passing NULL as path to dlopen() has the special meaning of
39 // "get handle to main executable"
40 void* handle = dlopen(NULL, RTLD_LAZY);
41 if ( handle == NULL ) {
42 FAIL("dlopen(NULL, RTLD_LAZY) failed");
43 exit(1);
44 }
45
46 // make sure we find "foo" in this main executable
47 void* sym = dlsym(handle, "foo");
48 if ( sym == NULL ) {
49 FAIL("dlsym(handle, \"foo\") failed");
50 exit(1);
51 }
52 if ( sym != &foo ) {
53 FAIL("dlsym(handle, \"foo\") returned wrong address");
54 exit(1);
55 }
56
57 PASS("dlopen-zero");
58 return EXIT_SUCCESS;
59 }