2 * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 /* Emulated functions. */
21 void *sudo_dlopen(const char *path, int mode);
22 int sudo_dlclose(void *handle);
23 void *sudo_dlsym(void *handle, const char *symbol);
24 char *sudo_dlerror(void);
26 /* Map emulated functions to standard names. */
27 #define dlopen(p, m) sudo_dlopen(p, m)
28 #define dlclose(h) sudo_dlclose(h)
29 #define dlsym(h, s) sudo_dlsym(h, s)
30 #define dlerror() sudo_dlerror()
32 /* Values for dlopen() mode. */
35 #define RTLD_GLOBAL 0x4
36 #define RTLD_LOCAL 0x8
38 /* Special handle arguments for dlsym(). */
39 #define RTLD_NEXT ((void *) -1) /* Search subsequent objects. */
40 #define RTLD_DEFAULT ((void *) -2) /* Use default search algorithm. */
41 #define RTLD_SELF ((void *) -3) /* Search the caller itself. */
43 #endif /* !_DLFCN_H_ */