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/* $OpenBSD: elf_sup.c,v 1.2 1996/05/28 14:11:21 etheisen Exp $ */
/*
* Copyright (c) 1995, 1996 Erik Theisen
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "exec_sup.h"
/*
* __elf_is_okay__ - Determine if ehdr really
* is ELF and valid for the target platform.
*
* WARNING: This is NOT a ELF ABI function and
* as such it's use should be restricted.
*/
int
__elf_is_okay__(ehdr)
register Elf32_Ehdr *ehdr;
{
register int retval = 0;
/*
* We need to check magic, class size, endianess,
* and version before we look at the rest of the
* Elf32_Ehdr structure. These few elements are
* represented in a machine independant fashion.
*/
if(IS_ELF(*ehdr) &&
ehdr->e_ident[EI_CLASS] == ELF_TARG_CLASS &&
ehdr->e_ident[EI_DATA] == ELF_TARG_DATA &&
ehdr->e_ident[EI_VERSION] == ELF_TARG_VER) {
/* Now check the machine dependant header */
if(ehdr->e_machine == ELF_TARG_MACH &&
ehdr->e_version == ELF_TARG_VER)
retval = 1;
}
return retval;
} /* end __elf_is_okay__() */
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