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 <stdint.h>
24#include <stdio.h>  // fprintf(), NULL
25#include <stdlib.h> // exit(), EXIT_SUCCESS
26#include <string.h>
27#include <dlfcn.h>
28#include <mach-o/dyld.h>
29
30#include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
31
32// libz.1.dylib should be in the shared cache
33// libz.dylib is a symlink to libz.dylib
34// we want to verify that dlopening the symlink name will use the one in the shared cache
35
36
37int main()
38{
39	void* libzHandle = dlopen("/usr/lib/libz.dylib", RTLD_LAZY);
40	if ( libzHandle == NULL ) {
41		FAIL("shared-cache-symlink: dlopen(/usr/lib/libz.dylib, RTLD_LAZY) failed: %s", dlerror());
42		return EXIT_SUCCESS;
43	}
44
45	// get address of strcmp()
46	void* sym = dlsym(libzHandle, "inflate");
47	if ( sym == NULL ) {
48		FAIL("shared-cache-symlink: dlsym(handle, \"inflate\") failed");
49		return EXIT_SUCCESS;
50	}
51
52	Dl_info info;
53	if ( dladdr(sym, &info) == 0 ) {
54		FAIL("shared-cache-symlink: dladdr(sym, xx) failed");
55		return EXIT_SUCCESS;
56	}
57
58	const struct mach_header* mh = (struct mach_header*)info.dli_fbase;
59	if ( mh->flags & 0x80000000 )
60		PASS("shared-cache-symlink");
61	else
62		FAIL("shared-cache-symlink: libz.dylib not loaded from shared cache");
63
64	return EXIT_SUCCESS;
65}
66