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#ifdef __cplusplus
34extern "C" {
35#endif
36
37#include <sys/cdefs.h>
38
39#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
40#include <stdbool.h>
41#include <Availability.h>
42/*
43 * Structure filled in by dladdr().
44 */
45typedef struct dl_info {
46        const char      *dli_fname;     /* Pathname of shared object */
47        void            *dli_fbase;     /* Base address of shared object */
48        const char      *dli_sname;     /* Name of nearest symbol */
49        void            *dli_saddr;     /* Address of nearest symbol */
50} Dl_info;
51
52extern int dladdr(const void *, Dl_info *);
53#endif /* not POSIX */
54
55extern int dlclose(void * __handle);
56extern char * dlerror(void);
57extern void * dlopen(const char * __path, int __mode);
58extern void * dlsym(void * __handle, const char * __symbol);
59
60#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
61extern bool dlopen_preflight(const char* __path) __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0);
62#endif /* not POSIX */
63
64
65#define RTLD_LAZY	0x1
66#define RTLD_NOW	0x2
67#define RTLD_LOCAL	0x4
68#define RTLD_GLOBAL	0x8
69
70#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
71#define RTLD_NOLOAD	0x10
72#define RTLD_NODELETE	0x80
73#define RTLD_FIRST	0x100	/* Mac OS X 10.5 and later */
74
75/*
76 * Special handle arguments for dlsym().
77 */
78#define	RTLD_NEXT	((void *) -1)	/* Search subsequent objects. */
79#define	RTLD_DEFAULT	((void *) -2)	/* Use default search algorithm. */
80#define	RTLD_SELF	((void *) -3)	/* Search this and subsequent objects (Mac OS X 10.5 and later) */
81#define	RTLD_MAIN_ONLY	((void *) -5)	/* Search main executable only (Mac OS X 10.5 and later) */
82#endif /* not POSIX */
83
84#ifdef __cplusplus
85}
86#endif
87
88#endif /* _DLFCN_H_ */
89