1/*
2 * Copyright (c) 2004-2008 Apple 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
24/*
25 Based on the dlcompat work done by:
26 Jorge Acereda <jacereda@users.sourceforge.net> &
27 Peter O'Gorman <ogorman@users.sourceforge.net>
28*/
29
30#ifndef _DLFCN_H_
31#define _DLFCN_H_
32
33#include <sys/cdefs.h>
34
35#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
36#include <stdbool.h>
37#include <Availability.h>
38
39#define __DYLDDL_UNAVAILABLE __API_UNAVAILABLE(driverkit)
40
41#define __DYLDDL_DLSYM_UNAVAILABLE __API_UNAVAILABLE(driverkit)
42
43
44#ifdef __cplusplus
45extern "C" {
46#endif
47
48/*
49 * Structure filled in by dladdr().
50 */
51typedef struct dl_info {
52 const char *dli_fname; /* Pathname of shared object */
53 void *dli_fbase; /* Base address of shared object */
54 const char *dli_sname; /* Name of nearest symbol */
55 void *dli_saddr; /* Address of nearest symbol */
56} Dl_info;
57
58extern int dladdr(const void *, Dl_info *);
59
60#ifdef __cplusplus
61}
62#endif
63
64#else
65#define __DYLDDL_UNAVAILABLE
66#define __DYLDDL_DLSYM_UNAVAILABLE
67#endif /* not POSIX */
68
69#ifdef __cplusplus
70extern "C" {
71#endif
72
73extern int dlclose(void * __handle) __DYLDDL_UNAVAILABLE;
74extern char * dlerror(void) __DYLDDL_UNAVAILABLE;
75extern void * dlopen(const char * __path, int __mode) __DYLDDL_UNAVAILABLE;
76extern void * dlsym(void * __handle, const char * __symbol) __DYLDDL_DLSYM_UNAVAILABLE;
77
78#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
79extern bool dlopen_preflight(const char* __path) __API_AVAILABLE(macos(10.5), ios(2.0)) __DYLDDL_UNAVAILABLE;
80#endif /* not POSIX */
81
82
83#define RTLD_LAZY 0x1
84#define RTLD_NOW 0x2
85#define RTLD_LOCAL 0x4
86#define RTLD_GLOBAL 0x8
87
88#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
89#define RTLD_NOLOAD 0x10
90#define RTLD_NODELETE 0x80
91#define RTLD_FIRST 0x100 /* Mac OS X 10.5 and later */
92
93/*
94 * Special handle arguments for dlsym().
95 */
96#define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */
97#define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */
98#define RTLD_SELF ((void *) -3) /* Search this and subsequent objects (Mac OS X 10.5 and later) */
99#define RTLD_MAIN_ONLY ((void *) -5) /* Search main executable only (Mac OS X 10.5 and later) */
100#endif /* not POSIX */
101
102#ifdef __cplusplus
103}
104#endif
105
106#endif /* _DLFCN_H_ */