elf_version.c revision 164190
1164190Sjkoshy/*- 2164190Sjkoshy * Copyright (c) 2006 Joseph Koshy 3164190Sjkoshy * All rights reserved. 4164190Sjkoshy * 5164190Sjkoshy * Redistribution and use in source and binary forms, with or without 6164190Sjkoshy * modification, are permitted provided that the following conditions 7164190Sjkoshy * are met: 8164190Sjkoshy * 1. Redistributions of source code must retain the above copyright 9164190Sjkoshy * notice, this list of conditions and the following disclaimer. 10164190Sjkoshy * 2. Redistributions in binary form must reproduce the above copyright 11164190Sjkoshy * notice, this list of conditions and the following disclaimer in the 12164190Sjkoshy * documentation and/or other materials provided with the distribution. 13164190Sjkoshy * 14164190Sjkoshy * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15164190Sjkoshy * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16164190Sjkoshy * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17164190Sjkoshy * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18164190Sjkoshy * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19164190Sjkoshy * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20164190Sjkoshy * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21164190Sjkoshy * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22164190Sjkoshy * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23164190Sjkoshy * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24164190Sjkoshy * SUCH DAMAGE. 25164190Sjkoshy */ 26164190Sjkoshy 27164190Sjkoshy#include <sys/cdefs.h> 28164190Sjkoshy__FBSDID("$FreeBSD: head/lib/libelf/elf_version.c 164190 2006-11-11 17:16:35Z jkoshy $"); 29164190Sjkoshy 30164190Sjkoshy#include <libelf.h> 31164190Sjkoshy 32164190Sjkoshy#include "_libelf.h" 33164190Sjkoshy 34164190Sjkoshyunsigned int 35164190Sjkoshyelf_version(unsigned int v) 36164190Sjkoshy{ 37164190Sjkoshy unsigned int old; 38164190Sjkoshy 39164190Sjkoshy if ((old = LIBELF_PRIVATE(version)) == EV_NONE) 40164190Sjkoshy old = EV_CURRENT; 41164190Sjkoshy 42164190Sjkoshy if (v == EV_NONE) 43164190Sjkoshy return old; 44164190Sjkoshy if (v > EV_CURRENT) { 45164190Sjkoshy LIBELF_SET_ERROR(VERSION, 0); 46164190Sjkoshy return EV_NONE; 47164190Sjkoshy } 48164190Sjkoshy 49164190Sjkoshy LIBELF_PRIVATE(version) = v; 50164190Sjkoshy return (old); 51164190Sjkoshy} 52