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/// 31/// When dlopen(NULL, RTLD_FIRST) is called, 32/// any dlsym() looks against that handle should only look in 33/// the main executable, and not subsequent images. 34/// 35 36 37struct info 38{ 39 const char* path; 40 void* handle; 41}; 42typedef struct info info; 43 44static info dlopen_or_fail(const char* path, int options) 45{ 46 info result; 47 result.path = path; 48 result.handle = dlopen(path, options); 49 if ( result.handle == NULL ) { 50 FAIL("dlsym-NULL-RTLD_FIRST: dlopen(\"%s\") failed: %s", path, dlerror()); 51 exit(0); 52 } 53 //fprintf(stderr, "dlopen(%s, 0x%0X) => %p\n", path, options, result.handle); 54 return result; 55} 56 57static void dlsym_should_fail(info hp, const char* symbol) 58{ 59 void* sym = dlsym(hp.handle, symbol); 60 if ( sym != NULL ) { 61 FAIL("dlsym-NULL-RTLD_FIRST: dlsym(handle-%s, \"%s\") should have failed", hp.path, symbol); 62 exit(0); 63 } 64} 65 66static void dlsym_should_succeed(info hp, const char* symbol) 67{ 68 void* sym = dlsym(hp.handle, symbol); 69 if ( sym == NULL ) { 70 FAIL("dlsym-NULL-RTLD_FIRST: dlsym(handle-%s, \"%s\") failed", hp.path, symbol); 71 exit(0); 72 } 73} 74 75 76int main() 77{ 78 int result; 79 info mainFirst = dlopen_or_fail(NULL, RTLD_FIRST); 80 info mainDefault = dlopen_or_fail(NULL, 0); 81 82 dlsym_should_succeed(mainFirst, "main_foo"); 83 dlsym_should_fail(mainFirst, "foo"); 84 85 dlsym_should_succeed(mainDefault, "main_foo"); 86 dlsym_should_succeed(mainDefault, "foo"); 87 88 result = dlclose(mainFirst.handle); 89 if ( result != 0 ) { 90 FAIL("dlsym-NULL-RTLD_FIRST: dlclose(mainFirst.handle) failed: %s", dlerror()); 91 exit(0); 92 } 93 result = dlclose(mainDefault.handle); 94 if ( result != 0 ) { 95 FAIL("dlsym-NULL-RTLD_FIRST: dlclose(mainDefault.handle) failed: %s", dlerror()); 96 exit(0); 97 } 98 99 PASS("dlsym-NULL-RTLD_FIRST"); 100 return EXIT_SUCCESS; 101} 102 103 104void main_foo() {} 105 106 107