xref: /freebsd/contrib/openpam/lib/libpam/openpam_dlfunc.h (revision 3ba4c8c81a28de3e00ccf6d7f92c6f8e58bef456)
1ce77a8d6SDag-Erling Smørgrav /*-
2ce77a8d6SDag-Erling Smørgrav  * Copyright (c) 2013 Dag-Erling Smørgrav
3ce77a8d6SDag-Erling Smørgrav  * All rights reserved.
4ce77a8d6SDag-Erling Smørgrav  *
5ce77a8d6SDag-Erling Smørgrav  * Redistribution and use in source and binary forms, with or without
6ce77a8d6SDag-Erling Smørgrav  * modification, are permitted provided that the following conditions
7ce77a8d6SDag-Erling Smørgrav  * are met:
8ce77a8d6SDag-Erling Smørgrav  * 1. Redistributions of source code must retain the above copyright
9ce77a8d6SDag-Erling Smørgrav  *    notice, this list of conditions and the following disclaimer.
10ce77a8d6SDag-Erling Smørgrav  * 2. Redistributions in binary form must reproduce the above copyright
11ce77a8d6SDag-Erling Smørgrav  *    notice, this list of conditions and the following disclaimer in the
12ce77a8d6SDag-Erling Smørgrav  *    documentation and/or other materials provided with the distribution.
13*f3b0ac34SDag-Erling Smørgrav  * 3. The name of the author may not be used to endorse or promote
14*f3b0ac34SDag-Erling Smørgrav  *    products derived from this software without specific prior written
15*f3b0ac34SDag-Erling Smørgrav  *    permission.
16ce77a8d6SDag-Erling Smørgrav  *
17ce77a8d6SDag-Erling Smørgrav  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18ce77a8d6SDag-Erling Smørgrav  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19ce77a8d6SDag-Erling Smørgrav  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20ce77a8d6SDag-Erling Smørgrav  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21ce77a8d6SDag-Erling Smørgrav  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22ce77a8d6SDag-Erling Smørgrav  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23ce77a8d6SDag-Erling Smørgrav  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24ce77a8d6SDag-Erling Smørgrav  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25ce77a8d6SDag-Erling Smørgrav  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26ce77a8d6SDag-Erling Smørgrav  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27ce77a8d6SDag-Erling Smørgrav  * SUCH DAMAGE.
28ce77a8d6SDag-Erling Smørgrav  */
29ce77a8d6SDag-Erling Smørgrav 
30ce77a8d6SDag-Erling Smørgrav #ifndef OPENPAM_DLFCN_H_INCLUDED
31ce77a8d6SDag-Erling Smørgrav #define OPENPAM_DLFCN_H_INCLUDED
32ce77a8d6SDag-Erling Smørgrav 
33ce77a8d6SDag-Erling Smørgrav #ifndef HAVE_DLFUNC
34ce77a8d6SDag-Erling Smørgrav typedef void (*dlfunc_t)();
35ce77a8d6SDag-Erling Smørgrav 
36ce77a8d6SDag-Erling Smørgrav static inline dlfunc_t
dlfunc(void * handle,const char * symbol)37ce77a8d6SDag-Erling Smørgrav dlfunc(void *handle, const char *symbol)
38ce77a8d6SDag-Erling Smørgrav {
39ce77a8d6SDag-Erling Smørgrav 
40ce77a8d6SDag-Erling Smørgrav 	return ((dlfunc_t)dlsym(handle, symbol));
41ce77a8d6SDag-Erling Smørgrav }
42ce77a8d6SDag-Erling Smørgrav #endif
43ce77a8d6SDag-Erling Smørgrav 
44ce77a8d6SDag-Erling Smørgrav #endif
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