dlfcn.h revision 1.12 
1/*	$NetBSD: dlfcn.h,v 1.12 2000/02/11 00:07:14 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Paul Kranenburg.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#ifndef _DLFCN_H_
40#define _DLFCN_H_
41
42#include <sys/cdefs.h>
43
44#if !defined(_XOPEN_SOURCE)
45typedef struct _dl_info {
46	const char	*dli_fname;	/* File defining the symbol */
47	void		*dli_fbase;	/* Base address */
48	const char	*dli_sname;	/* Symbol name */
49	const void	*dli_saddr;	/* Symbol address */
50} Dl_info;
51#endif /* !defined(_XOPEN_SOURCE) */
52
53/*
54 * User interface to the run-time linker.
55 */
56__BEGIN_DECLS
57extern void	*dlopen __P((const char *, int));
58extern int	dlclose __P((void *));
59extern void	*dlsym __P((void *, const char *));
60#if !defined(_XOPEN_SOURCE)
61extern int	dladdr __P((const void *, Dl_info *));
62extern int	dlctl __P((void *, int, void *));
63#endif
64extern __aconst char *dlerror __P((void));
65__END_DECLS
66
67/* Values for dlopen `mode'. */
68#define RTLD_LAZY	1
69#define RTLD_NOW	2
70#define RTLD_GLOBAL	0x100		/* Allow global searches in object */
71#define RTLD_LOCAL	0x200
72#if !defined(_XOPEN_SOURCE)
73#define DL_LAZY		RTLD_LAZY	/* Compat */
74#endif
75
76/*
77 * dlctl() commands
78 */
79#if !defined(_XOPEN_SOURCE)
80#define DL_GETERRNO	1
81#define DL_GETSYMBOL	2
82#if 0
83#define DL_SETSRCHPATH	x
84#define DL_GETLIST	x
85#define DL_GETREFCNT	x
86#define DL_GETLOADADDR	x
87#endif /* 0 */
88#endif /* !defined(_XOPEN_SOURCE) */
89
90#endif /* !defined(_DLFCN_H_) */
91