dyld-43.tar.gz
[apple/dyld.git] / unit-tests / test-cases / dlsym-RTLD_DEFAULT / foo.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 <string.h>
24 #include <dlfcn.h>
25 #include <stdlib.h> // exit(), EXIT_SUCCESS
26
27 #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
28
29 char* strdup(const char* str)
30 {
31 return "from foo";
32 }
33
34 typedef char* (*strdupProc)(const char* str);
35
36
37 void myinit() __attribute__((constructor));
38 void myinit()
39 {
40 strdupProc sym = (strdupProc)dlsym(RTLD_DEFAULT, "strdup");
41 if ( sym == NULL ) {
42 FAIL("dlsym(RTLD_DEFAULT, \"strdup\") failed");
43 exit(0);
44 }
45
46 const char* result = (*sym)("hello");
47 if ( strcmp(result, "from main") != 0 ) {
48 FAIL("dlsym(RTLD_DEFAULT, \"strdup\") returned wrong strdup: %s", result);
49 exit(0);
50 }
51
52 }