/*
 * Copyright (c) 1993-1995 Argonaut Technologies Limited. All rights reserved.
 *
 * $Id: wincoff.h 2.2 1996/10/03 11:35:34 sam Exp $
 * $Locker: $
 *
 * Structures that appear in a file
 */
#ifndef _WINCOFF_H_
#define _WINCOFF_H_

struct msdos_header {
    br_uint_16	magic;
    br_uint_16	last_page_bytes;
    br_uint_16	pages;
    br_uint_16	n_relocations;
    br_uint_16	header_size;
    br_uint_16	minalloc;
    br_uint_16	maxalloc;
    br_uint_16	start_ss;
    br_uint_16	start_sp;
    br_uint_16	checksum;
    br_uint_16	start_ip;
    br_uint_16	start_cs;
    br_uint_16	reloc_offset;
    br_uint_16	overlay_number;
    br_uint_16	_reserved0[4];
    br_uint_16	oem_id;
    br_uint_16	oem_info;
    br_uint_16	_reserved1[10];
    br_uint_32	new_header_offset;
};

struct coff_header {
	br_uint_16	machine;
	br_uint_16	n_sections;
	br_uint_32	time_date;
	br_uint_32	symbols_offset;
	br_uint_32	n_symbols;
	br_uint_16	opt_header_size;
	br_uint_16	flags;
};

#define IMAGE_FILE_MACHINE_UNKNOWN		0
#define IMAGE_FILE_MACHINE_I386 		0x14c
#define IMAGE_FILE_MACHINE_R3000		0x162
#define IMAGE_FILE_MACHINE_R4000		0x166
#define IMAGE_FILE_MACHINE_ALPHA		0x184
#define IMAGE_FILE_MACHINE_POWERPC		0x1F0

#define	IMAGE_FILE_RELOCS_STRIPPED		0x0001
#define IMAGE_FILE_EXECUTABLE_IMAGE		0x0002
#define IMAGE_FILE_LINE_NUMS_STRIPPED	0x0004
#define IMAGE_FILE_LOCAL_SYMS_STRIPPED	0x0008
#define IMAGE_FILE_BYTES_REVERSED_LO	0x0080
#define IMAGE_FILE_32BIT_MACHINE		0x0100
#define IMAGE_FILE_DEBUG_STRIPPED		0x0200
#define IMAGE_FILE_SYSTEM				0x1000
#define IMAGE_FILE_DLL   				0x2000
#define IMAGE_FILE_BYTES_REVERSED_HI	0x8000

#define MAX_DATA_DIRECTORIES 16

struct nt_optional_header {
	/*
	 * Standard Win32 header
	 */
	br_uint_16	magic;
	br_uint_8	l_major;
	br_uint_8	l_minor;
	br_uint_32	code_size;
	br_uint_32	data_size;
	br_uint_32	bss_size;
	br_uint_32	entry_point;
	br_uint_32	code_base;
	br_uint_32	data_base;

	/*
	 * NT specific header
	 */
	br_uint_32	image_base;
	br_uint_32	section_alignment;
	br_uint_32	file_alignment;
	br_uint_16	os_major;
	br_uint_16	os_minor;
	br_uint_16	user_major;
	br_uint_16	user_minor;
	br_uint_16	subsys_major;
	br_uint_16	subsys_minor;
	br_uint_32	_reserved;
	br_uint_32	image_size;
	br_uint_32	header_size;
	br_uint_32	file_checksum;
	br_uint_16	subsystem;
	br_uint_16	dll_flags;
	br_uint_32	stack_reserve_size;
	br_uint_32	stack_commit_size;
	br_uint_32	heap_reserve_size;
	br_uint_32	heap_commit_size;
	br_uint_32	loader_flags;
	br_uint_32	n_data_directories;
	struct {
		br_uint_32 rva;
		br_uint_32 size;
	} directories[MAX_DATA_DIRECTORIES];
};

#define	IMAGE_SUBSYSTEM_UNKNOWN			0
#define	IMAGE_SUBSYSTEM_NATIVE			1
#define	IMAGE_SUBSYSTEM_WINDOWS_GUI		2	
#define	IMAGE_SUBSYSTEM_WINDOWS_CUI		3
#define	IMAGE_SUBSYSTEM_OS2_CUI			5
#define	IMAGE_SUBSYSTEM_POSIX_CUI		7

#define	DIRECTORY_EXPORT		0
#define	DIRECTORY_IMPORT		1
#define	DIRECTORY_RESOURCE		2
#define	DIRECTORY_EXCEPTION		3
#define	DIRECTORY_SECURITY	 	4
#define	DIRECTORY_BASERELOC		5
#define	DIRECTORY_DEBUG		 	6
#define	DIRECTORY_COPYRIGHT		7
#define	DIRECTORY_GLOBALPTR		8
#define	DIRECTORY_TLS			9
#define	DIRECTORY_LOAD_CONFIG	10

struct section_header {
	br_uint_8 section_name[8];
	br_uint_32	virtual_size;
	br_uint_32	rva;
	br_uint_32	data_size;
	br_uint_32	data_offset;
	br_uint_32	relocs_offset;
	br_uint_32	linenums_offset;
	br_uint_16	n_relocs;
	br_uint_16	n_linenums;
	br_uint_32	flags;
};

#define IMAGE_SCN_TYPE_NO_PAD				0x00000008

#define IMAGE_SCN_CNT_CODE					0x00000020
#define IMAGE_SCN_CNT_INITIALIZED_DATA		0x00000040
#define IMAGE_SCN_CNT_UNINITIALIZED_DATA	0x00000080

#define IMAGE_SCN_LNK_OTHER					0x00000100
#define IMAGE_SCN_LNK_INFO					0x00000200
#define IMAGE_SCN_LNK_REMOVE				0x00000800
#define IMAGE_SCN_LNK_COMDAT				0x00001000

#define IMAGE_SCN_ALIGN_1BYTES				0x00100000
#define IMAGE_SCN_ALIGN_2BYTES				0x00200000
#define IMAGE_SCN_ALIGN_4BYTES				0x00300000
#define IMAGE_SCN_ALIGN_8BYTES				0x00400000
#define IMAGE_SCN_ALIGN_16BYTES				0x00500000
#define IMAGE_SCN_ALIGN_32BYTES				0x00600000
#define IMAGE_SCN_ALIGN_64BYTES				0x00700000

#define IMAGE_SCN_MEM_DISCARDABLE			0x02000000
#define IMAGE_SCN_MEM_NOT_CACHED			0x04000000
#define IMAGE_SCN_MEM_NOT_PAGED				0x08000000

#define IMAGE_SCN_MEM_SHARED				0x10000000
#define IMAGE_SCN_MEM_EXECUTE				0x20000000
#define IMAGE_SCN_MEM_READ					0x40000000
#define IMAGE_SCN_MEM_WRITE					0x80000000

/*
 * Base Relocation
 */
typedef struct basereloc_header {
		br_uint_32 rva;
		br_uint_32 size;
} basereloc_header;

#define IMAGE_REL_BASED_ABSOLUTE		0
#define IMAGE_REL_BASED_HIGH			1
#define IMAGE_REL_BASED_LOW				2
#define IMAGE_REL_BASED_HIGHLOW			3
#define IMAGE_REL_BASED_HIGHADJ			4
#define IMAGE_REL_BASED_MIPS_JMPADDR	5

#define ENTRY_TYPE(e) ((e) >> 12)
#define ENTRY_OFFSET(e) ((e) & 0xfff)

/*
 * Exports
 */
typedef struct export_directory {
		br_uint_32 flags;
		br_uint_32 timestamp;
		br_uint_16 major_version;
		br_uint_16 minor_version;
		br_uint_32 name;
		br_uint_32 ordinal_base;
		br_uint_32 n_entries;
		br_uint_32 n_names;
		br_uint_32 export_table;
		br_uint_32 name_table;
		br_uint_32 ordinal_table;
} export_directory;

/*
 * Imports
 */
typedef struct import_directory {
		br_uint_32 lookup_table;
		br_uint_32 timestamp;
		br_uint_32 forwarder;
		br_uint_32 name;
		br_uint_32 address_table;
} import_directory;

#endif