[apple/dyld.git] / unit-tests / test-cases / shared-cache-symlink / main.c

/*
 * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#include <stdint.h>
#include <stdio.h>  // fprintf(), NULL
#include <stdlib.h> // exit(), EXIT_SUCCESS
#include <string.h>
#include <dlfcn.h>
#include <mach-o/dyld.h>

#include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()

// libz.1.dylib should be in the shared cache
// libz.dylib is a symlink to libz.dylib
// we want to verify that dlopening the symlink name will use the one in the shared cache


int main()
{
	void* libzHandle = dlopen("/usr/lib/libz.dylib", RTLD_LAZY);
	if ( libzHandle == NULL ) {
		FAIL("shared-cache-symlink: dlopen(/usr/lib/libz.dylib, RTLD_LAZY) failed: %s", dlerror());
		return EXIT_SUCCESS;
	}
	
	// get address of strcmp()
	void* sym = dlsym(libzHandle, "inflate");
	if ( sym == NULL ) {
		FAIL("shared-cache-symlink: dlsym(handle, \"inflate\") failed");
		return EXIT_SUCCESS;
	}
	
	Dl_info info;
	if ( dladdr(sym, &info) == 0 ) {
		FAIL("shared-cache-symlink: dladdr(sym, xx) failed");
		return EXIT_SUCCESS;
	}

	const struct mach_header* mh = (struct mach_header*)info.dli_fbase;
	if ( mh->flags & 0x80000000 ) 
		PASS("shared-cache-symlink");
	else 
		FAIL("shared-cache-symlink: libz.dylib not loaded from shared cache");

	return EXIT_SUCCESS;
}
Commit	Line	Data
bac542e6 A	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
	37	int 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
412ebb8e A	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");
bac542e6	63
bac542e6 A	64	return EXIT_SUCCESS;
bac542e6 A	65	}