Annotation of src/include/dlfcn.h, Revision 1.14
1.14 ! kettenis 1: /* $OpenBSD: dlfcn.h,v 1.13 2013/03/24 01:37:21 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: dlfcn.h,v 1.2 1995/06/05 19:38:00 pk Exp $ */
3:
4: /*
5: * Copyright (c) 1995 Paul Kranenburg
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by Paul Kranenburg.
19: * 4. The name of the author may not be used to endorse or promote products
1.6 deraadt 20: * derived from this software without specific prior written permission
1.1 deraadt 21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: */
33:
34: #ifndef _DLFCN_H_
35: #define _DLFCN_H_
36:
37: #include <sys/cdefs.h>
38:
39: /* Values for dlopen `mode'. */
1.8 drahn 40: #define RTLD_LAZY 1
41: #define RTLD_NOW 2
42: #define RTLD_GLOBAL 0x100
43: #define RTLD_LOCAL 0x000
1.11 jason 44: #define RTLD_TRACE 0x200
1.9 drahn 45:
46: /*
47: * Special handle arguments for dlsym().
48: */
49: #define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */
50: #define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */
51: #define RTLD_SELF ((void *) -3) /* Search the caller itself. */
1.1 deraadt 52:
1.12 guenther 53: #if __BSD_VISIBLE
54:
55: /*
56: * Structure filled in by dladdr().
57: */
58: typedef struct dl_info {
59: const char *dli_fname; /* Pathname of shared object. */
60: void *dli_fbase; /* Base address of shared object. */
61: const char *dli_sname; /* Name of nearest symbol. */
62: void *dli_saddr; /* Address of nearest symbol. */
63: } Dl_info;
64:
1.1 deraadt 65: /*
66: * dlctl() commands
67: */
68: #define DL_GETERRNO 1
69: #define DL_SETSRCHPATH x
70: #define DL_GETLIST x
71: #define DL_GETREFCNT x
72: #define DL_GETLOADADDR x
1.7 marc 73: #define DL_SETTHREADLCK 2
1.10 drahn 74: #define DL_SETBINDLCK 3
1.14 ! kettenis 75: #define DL_REFERENCE 4
1.12 guenther 76:
77: #define DL_LAZY RTLD_LAZY /* Compat */
78:
79: #endif /* __BSD_VISIBLE */
80:
81:
82: /*
83: * User interface to the run-time linker.
84: */
85: __BEGIN_DECLS
86: void *dlopen(const char *, int);
87: int dlclose(void *);
88: void *dlsym(void *__restrict, const char *__restrict);
1.13 deraadt 89: char *dlerror(void);
1.12 guenther 90:
91: #if __BSD_VISIBLE
92: int dladdr(const void *, Dl_info *);
93: int dlctl(void *, int, void *);
94: #endif /* __BSD_VISIBLE */
95:
96: __END_DECLS
1.1 deraadt 97:
98: #endif /* _DLFCN_H_ */