xref: /freebsd/contrib/elftoolchain/libelf/elf_version.c (revision 416ba5c74546f32a993436a99516d35008e9f384)
12de3b87aSKai Wang /*-
22de3b87aSKai Wang  * Copyright (c) 2006,2008 Joseph Koshy
32de3b87aSKai Wang  * All rights reserved.
42de3b87aSKai Wang  *
52de3b87aSKai Wang  * Redistribution and use in source and binary forms, with or without
62de3b87aSKai Wang  * modification, are permitted provided that the following conditions
72de3b87aSKai Wang  * are met:
82de3b87aSKai Wang  * 1. Redistributions of source code must retain the above copyright
92de3b87aSKai Wang  *    notice, this list of conditions and the following disclaimer.
102de3b87aSKai Wang  * 2. Redistributions in binary form must reproduce the above copyright
112de3b87aSKai Wang  *    notice, this list of conditions and the following disclaimer in the
122de3b87aSKai Wang  *    documentation and/or other materials provided with the distribution.
132de3b87aSKai Wang  *
142de3b87aSKai Wang  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
152de3b87aSKai Wang  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
162de3b87aSKai Wang  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
172de3b87aSKai Wang  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
182de3b87aSKai Wang  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
192de3b87aSKai Wang  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
202de3b87aSKai Wang  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
212de3b87aSKai Wang  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
222de3b87aSKai Wang  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
232de3b87aSKai Wang  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
242de3b87aSKai Wang  * SUCH DAMAGE.
252de3b87aSKai Wang  */
262de3b87aSKai Wang 
272de3b87aSKai Wang #include <libelf.h>
282de3b87aSKai Wang 
292de3b87aSKai Wang #include "_libelf.h"
302de3b87aSKai Wang 
31*67d97fe7SEd Maste ELFTC_VCSID("$Id: elf_version.c 3174 2015-03-27 17:13:41Z emaste $");
322de3b87aSKai Wang 
332de3b87aSKai Wang unsigned int
elf_version(unsigned int v)342de3b87aSKai Wang elf_version(unsigned int v)
352de3b87aSKai Wang {
362de3b87aSKai Wang 	unsigned int old;
372de3b87aSKai Wang 
382de3b87aSKai Wang 	if ((old = LIBELF_PRIVATE(version)) == EV_NONE)
392de3b87aSKai Wang 		old = EV_CURRENT;
402de3b87aSKai Wang 
412de3b87aSKai Wang 	if (v == EV_NONE)
422de3b87aSKai Wang 		return old;
432de3b87aSKai Wang 	if (v > EV_CURRENT) {
442de3b87aSKai Wang 		LIBELF_SET_ERROR(VERSION, 0);
452de3b87aSKai Wang 		return EV_NONE;
462de3b87aSKai Wang 	}
472de3b87aSKai Wang 
482de3b87aSKai Wang 	LIBELF_PRIVATE(version) = v;
492de3b87aSKai Wang 	return (old);
502de3b87aSKai Wang }
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