File: htcoff.h

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/* 
 *	HT Editor
 *	htcoff.h
 *
 *	Copyright (C) 1999-2003 Stefan Weyergraf
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License version 2 as
 *	published by the Free Software Foundation.
 *
 *	This program 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 General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef __HTCOFF_H__
#define __HTCOFF_H__

#include "formats.h"
#include "coff_s.h"
#include "htcoffhd.h"
#include "endianess.h"

#define DESC_COFF			"coff - unix common obj file"
#define DESC_COFF_HEADER		"coff/header"
#define DESC_COFF_IMAGE			"coff/image"

#define ATOM_COFF_MACHINES 			0xf0450000
#define ATOM_COFF_MACHINES_STR			"f0450000"

#define ATOM_COFF_OPTIONAL_MAGICS 		0xf0450001
#define ATOM_COFF_OPTIONAL_MAGICS_STR 		 "f0450001"

#define ATOM_COFF_OPTIONAL_SIZES 		0xf0450002
#define ATOM_COFF_OPTIONAL_SIZES_STR 		 "f0450002"

#define ATOM_COFF_CHARACTERISTICS		0xf0450003
#define ATOM_COFF_CHARACTERISTICS_STR		 "f0450003"

#define ATOM_COFF_SECTION_CHARACTERISTICS	0xf0450004
#define ATOM_COFF_SECTION_CHARACTERISTICS_STR	 "f0450004"

extern format_viewer_if htcoff_if;

struct coff_section_headers {
	uint hdr_ofs;		// duplicate of ht_coff_shared_data.hdr_ofs (!)
	uint section_count;
	COFF_SECTION_HEADER *sections;
};

struct ht_coff_shared_data {
	uint32 hdr_ofs;
	COFF_HEADER coffheader;
	uint16 opt_magic;
	Endianess endian;
	union {
		COFF_OPTIONAL_HEADER32 coff32header;
	};
	coff_section_headers sections;
	ht_viewer *v_header;
	ht_viewer *v_image;
};

/*
 *	CLASS ht_coff
 */

class ht_coff: public ht_format_group {
private:
	ht_coff_shared_data *coff_shared;
public:
		void init(Bounds *b, File *file, format_viewer_if **ifs, ht_format_group *format_group, FileOfs header_ofs, Endianess end);
	virtual	void done();
};

bool coff_rva_to_section(coff_section_headers *section_headers, RVA rva, int *section);
bool coff_rva_to_ofs(coff_section_headers *section_headers, RVA rva, FileOfs *ofs);
bool coff_rva_is_valid(coff_section_headers *section_headers, RVA rva);
bool coff_rva_is_physical(coff_section_headers *section_headers, RVA rva);

bool coff_ofs_to_rva(coff_section_headers *section_headers, uint32 ofs, RVA *rva);
bool coff_ofs_to_section(coff_section_headers *section_headers, uint32 ofs, uint *section);
int coff_ofs_to_rva_and_section(coff_section_headers *section_headers, uint32 ofs, RVA *rva, uint *section);

#endif /* !__HTCOFF_H__ */