tools/elf4rom/libs/libelf-0.8.10/lib/rawfile.c
author Martin Trojer <martin.trojer@nokia.com>
Fri, 15 Jan 2010 09:07:44 +0000
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/*
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rawfile.c - implementation of the elf_rawfile(3) function.
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Copyright (C) 1995 - 1998 Michael Riepe
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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*/
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#include <private.h>
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#ifndef lint
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static const char rcsid[] = "@(#) $Id: rawfile.c,v 1.6 2005/05/21 15:39:26 michael Exp $";
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#endif /* lint */
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char*
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elf_rawfile(Elf *elf, size_t *ptr) {
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    size_t tmp;
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    if (!ptr) {
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	ptr = &tmp;
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    }
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    *ptr = 0;
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    if (!elf) {
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	return NULL;
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    }
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    elf_assert(elf->e_magic == ELF_MAGIC);
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    if (!elf->e_readable) {
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	return NULL;
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    }
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    else if (elf->e_size && !elf->e_rawdata) {
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	elf_assert(elf->e_data);
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	if (!elf->e_cooked) {
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	    elf->e_rawdata = elf->e_data;
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	}
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	else if (!(elf->e_rawdata = _elf_read(elf, NULL, 0, elf->e_size))) {
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	    return NULL;
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	}
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	*ptr = elf->e_size;
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    }
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    return elf->e_rawdata;
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}