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/*
* getaroff.c - implementation of the elf_getaroff(3) function.
* Copyright (C) 2009 Michael Riepe
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <private.h>
#ifndef lint
static const char rcsid[] = "@(#) $Id: getaroff.c,v 1.1 2009/11/01 13:04:19 michael Exp $";
#endif /* lint */
off_t
elf_getaroff(Elf *elf) {
Elf *ref;
if (!elf) {
return (off_t)-1;
}
elf_assert(elf->e_magic == ELF_MAGIC);
if (!(ref = elf->e_parent)) {
return (off_t)-1;
}
elf_assert(ref->e_magic == ELF_MAGIC);
elf_assert(elf->e_base >= ref->e_base + SARMAG + sizeof(struct ar_hdr));
return (off_t)(elf->e_base - ref->e_base - sizeof(struct ar_hdr));
}
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