path: root/decomp/dos.h

/* dos.h
 * This file is part of Decomp - a disassembler.  This file contains
 * definitions used in the DOS/Win32 module.
 *
 * Copyright (C) 2002 Jonathan duSaint <dusaint@earthlink.net>
 *
 * Started on 25 Feb 2002
 */

#ifndef DOS_H
#define DOS_H


#include <stdint.h>


/* define some Windows types */

typedef uint8_t BYTE;
typedef uint16_t WORD;
typedef uint32_t DWORD;
typedef uint64_t QWORD;
/* typedef uint128_t OWORD */


/* NE definitions */

#define NE_POS_ISNE_INDICATOR 0x18
#define NE_ISNE_INDICATOR     0x40

#define NE_POS_HEADER_OFFSET  0x3c

#define NE_MAKE_REAL_ADDRESS(segment,offset) (((DWORD)(segment) << 16) \
                                              + (DWORD)(offset))

struct ne_file_header {
  char Signature[2];       /* NE */
  BYTE LinkerMajorVersion;
  BYTE LinkerMinorVersion;
  WORD EntryTableOffset;
  WORD EntryTableSize;
  BYTE Reserved[4];
  WORD Flags;
  WORD AutoDataSegment;
  WORD HeapSize;
  WORD StackSize;
  WORD CS;
  WORD IP;
  WORD SS;
  WORD SP;
  WORD SegmentTableEntries;
  WORD ModuleRefTableEntries;
  WORD NonresidentNameTableSize;
  WORD SegmentTableOffset;
  WORD ResourceTableOffset;
  WORD ResidentNameTableOffset;
  WORD ModuleReferenceTableOffset;
  WORD ImportedNameTableOffset;
  WORD NonresidentNameTableOffset;
  WORD MovableEntryPoints;
  WORD Alignment;
  WORD ResourceSegments;
  BYTE OperatingSystem;
  BYTE AdditionalInformation;
  WORD FastLoadSectorOffset;
  WORD FastLoadSectorSize;
  WORD Reserved1;
  WORD WindowsVersion;
};

/* values for the Flags field */
#define NEFLAG_SINGLEDATA   (1<<0)
#define NEFLAG_MULTIPLEDATA (1<<1)
#define NEFLAG_BOOTSTRAP    (1<<11)
#define NEFLAG_HAS_ERRORS   (1<<13)
#define NEFLAG_ISLIB        (1<<15)

/* values for the OperatingSystem field */
#define NEOS_UNKNOWN   (1<<0)
#define NEOS_MSWINDOWS (1<<2)

/* values for the AdditionalInformation field */
#define NEAINFO_PROTECTED          (1<<1)
#define NEAINFO_PROPORTIONAL_FONTS (1<<2)
#define NEAINFO_FASTLOAD_AREA      (1<<3)


struct ne_segment_header {
  WORD SegmentDataSectorOffset; /* from file start to segment in sectors */
  WORD SegmentLength;           /* 0 -> 64K */
  WORD Flags;
  WORD AllocationSize;          /* 0 -> 64K */
};

#define NE_SEGMENT_TYPE (1<<0)

#define NE_CODE_SEGMENT(flags) (!((flags) & NE_SEGMENT_TYPE))
#define NE_DATA_SEGMENT(flags) ((flags) & NE_SEGMENT_TYPE)

#define NE_MEM_ALLOCED         (1<<1)
#define NE_SEGMENT_LOADED      (1<<2)
#define NE_SEGMENT_MOVABLE     (1<<4)
#define NE_SEGMENT_SHAREABLE   (1<<5)
#define NE_SEGMENT_PRELOAD     (1<<6)
#define NE_CODE_EXECUTEONLY    (1<<7)
#define NE_DATA_READONLY       (1<<7)
#define NE_CONTAINS_RELOC_DATA (1<<8)
#define NE_DISCARDABLE_SEGMENT (1<<12)


/* resource table ?? */


/* PE definitions */

#define PE_HEADER_OFFSET 0x3c

#define PE32_MAGIC     0x010b
#define PE32PLUS_MAGIC 0x020b
#define PE_ROM_MAGIC   0x0107 /* shouldn't see this */

/* number of optional header data directories */
#define N_OHDD 16


/* the names in this header may not be strictly correct, I'm just
   going off of the documentation and some educated guesses. */

typedef struct _COFF_HEADER {
  char PeSignature[4];  /* 4 byte signature (PE\0\0) */
  WORD Machine;      /* PE machine type */
  WORD NumberOfSections; /* number of sections */
  DWORD TimeDateStamp; /* time and date of file creation */
  DWORD PointerToSymbolTable; /* file offset of the symbol table or 0 */
  DWORD NumberOfSymbols; /* number of entries in the symbol table */
  WORD SizeOfOptionalHeader; /* size of the optional header */
  WORD Characteristics; /* attribute flags for this file */
} COFF_HEADER, *PCOFF_HEADER;


/* machine types (Machine field) */

#define IMAGE_FILE_MACHINE_UNKNOWN   0x0   /* applicable to any machine */
#define IMAGE_FILE_MACHINE_ALPHA     0x184 /* AXP Alpha */
#define IMAGE_FILE_MACHINE_ARM       0x1c0 /* Strong ARM */
#define IMAGE_FILE_MACHINE_ALPHA64   0x284 /* 64 bit AXP Alpha (err??) */
#define IMAGE_FILE_MACHINE_I386      0x14c /* 386 and later */
#define IMAGE_FILE_MACHINE_IA64      0x200 /* IA-64 */
#define IMAGE_FILE_MACHINE_M68K      0x268 /* Motorola 68K series */
#define IMAGE_FILE_MACHINE_MIPS16    0x266 /* 16 bit MIPS */
#define IMAGE_FILE_MACHINE_MIPSFPU   0x366 /* MIPS with FPU */
#define IMAGE_FILE_MACHINE_MIPSFPU16 0x466 /* 16 bit MIPS with FPU */
#define IMAGE_FILE_MACHINE_POWERPC   0x110 /* Power PC, little endian */
#define IMAGE_FILE_MACHINE_R3000     0x162
#define IMAGE_FILE_MACHINE_R4000     0x166 /* MIPS little endian */
#define IMAGE_FILE_MACHINE_R10000    0x168
#define IMAGE_FILE_MACHINE_SH3       0x1a2 /* Hitachi SH3 */
#define IMAGE_FILE_MACHINE_SH4       0x1a8 /* Hitachi SH4 */
#define IMAGE_FILE_MACHINE_THUMB     0x1c2


/* characteristics (Characteristics field) */

#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_AGGRESSIVE_WS_TRIM      0x0010
#define IMAGE_FILE_LARGE_ADDRESS_AWARE     0x0020
#define IMAGE_FILE_16BIT_MACHINE           0x0040
#define IMAGE_FILE_BYTES_REVERSED_LO       0x0080
#define IMAGE_FILE_32BIT_MACHINE           0x0100
#define IMAGE_FILE_DEBUG_STRIPPED          0x0200
#define IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP 0x0400
#define IMAGE_FILE_SYSTEM                  0x1000
#define IMAGE_FILE_DLL                     0x2000
#define IMAGE_FILE_UP_SYSTEM_ONLY          0x4000
#define IMAGE_FILE_BYTES_REVERSED_HI       0x8000


/* optional header info */

typedef struct _PE32PLUS_OPTIONAL_HEADER {
  /* standard fields */
  WORD Magic; /* PE32/PE32+ magic number */
  BYTE MajorLinkerVersion;       /* linker major version number */
  BYTE MinorLinkerVersion;       /* linker minor version number */
  DWORD SizeOfCode;              /* size of all of the text sections */
  DWORD SizeOfInitializedData;   /* size of all the data sections */
  DWORD SizeOfUninitializedData; /* size of all the bss sections */
  DWORD AddressOfEntryPoint;     /* relative entry point */
  DWORD BaseOfCode;              /* relative address of the start of
				       the code section */
  /* Windows NT specific fields */
  /* this next field is 32 bits in PE32 and 64 bits in PE32+ */
  QWORD ImageBase;               /* address of start of image in memory */
  DWORD SectionAlignment;        /* byte alignment of sections in memory */
  DWORD FileAlignment;           /* byte alignment of sections on disk */
  WORD MajorOperatingSystemVersion;
  WORD MinorOperatingSystemVersion;
  WORD MajorImageVersion;
  WORD MinorImageVersion;
  WORD MajorSubsystemVersion;
  WORD MinorSubsystemVersion;
  DWORD Reserved;                /* dd (??) */
  DWORD SizeOfImage;             /* size of the image with headers */
  DWORD SizeOfHeaders;           /* size of the stubs/headers */
  DWORD CheckSum;                /* image checksum */
  WORD Subsystem;               /* Windows NT subsystem */
  WORD DLLCharacteristics;

  /* next field is 32 bits in PE32, 64 in PE32+ */
  QWORD SizeOfStackReserve;      /* size of stack to reserve */
  /* next field is 32 bits in PE32, 64 in PE32+ */
  QWORD SizeOfStackCommit;       /* size of stack to commit */
  /* next field is 32 bits in PE32, 64 in PE32+ */
  QWORD SizeOfHeapReserve;       /* size of heap to reserve */
  /* next field is 32 bits in PE32, 64 in PE32+ */
  QWORD SizeOfHeapCommit;        /* size of heap to commit */

  DWORD LoaderFlags;             /* this field is obselete */
  DWORD NumberOfRvaAndSizes;     /* number of data dictionary entries */
} PE32PLUS_OPTIONAL_HEADER, *PPE32PLUS_OPTIONAL_HEADER;

typedef struct _PE32_OPTIONAL_HEADER {
  /* standard fields */
  WORD Magic;                    /* PE32/PE32+ magic number */
  BYTE MajorLinkerVersion;       /* linker major version number */
  BYTE MinorLinkerVersion;       /* linker minor version number */
  DWORD SizeOfCode;              /* size of all of the text sections */
  DWORD SizeOfInitializedData;   /* size of all the data sections */
  DWORD SizeOfUninitializedData; /* size of all the bss sections */
  DWORD AddressOfEntryPoint;     /* relative entry point */
  DWORD BaseOfCode;              /* relative address of the start of
				       the code section */
  /* this next field is only in PE32 files */
  DWORD BaseOfData; /* relative address of the start of the data section */

  /* Windows NT specific fields */
  /* this next field is 32 bits in PE32 and 64 bits in PE32+ */
  DWORD ImageBase;               /* address of start of image in memory */
  DWORD SectionAlignment;        /* byte alignment of sections in memory */
  DWORD FileAlignment;           /* byte alignment of sections on disk */
  WORD MajorOperatingSystemVersion;
  WORD MinorOperatingSystemVersion;
  WORD MajorImageVersion;
  WORD MinorImageVersion;
  WORD MajorSubsystemVersion;
  WORD MinorSubsystemVersion;
  DWORD Reserved;                /* dd (??) */
  DWORD SizeOfImage;             /* size of the image with headers */
  DWORD SizeOfHeaders;           /* size of the stubs/headers */
  DWORD CheckSum;                /* image checksum */
  WORD Subsystem;               /* Windows NT subsystem */
  WORD DLLCharacteristics;
  /* next field is 32 bits in PE32, 64 in PE32+ */
  DWORD SizeOfStackReserve;      /* size of stack to reserve */
  /* next field is 32 bits in PE32, 64 in PE32+ */
  DWORD SizeOfStackCommit;       /* size of stack to commit */
  /* next field is 32 bits in PE32, 64 in PE32+ */
  DWORD SizeOfHeapReserve;       /* size of heap to reserve */
  /* next field is 32 bits in PE32, 64 in PE32+ */
  DWORD SizeOfHeapCommit;        /* size of heap to commit */
  DWORD LoaderFlags;             /* this field is obselete */
  DWORD NumberOfRvaAndSizes;     /* number of data dictionary entries */
} PE32_OPTIONAL_HEADER, *PPE32_OPTIONAL_HEADER;


#define MAGIC_PE32      0x10b
#define MAGIC_PE32_PLUS 0x20b


/* Subsystem field in optional header */

#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_POSIX_CUI               7
#define IMAGE_SUBSYSTEM_WINDOWS_CE_GUI          9
#define IMAGE_SUBSYSTEM_EFI_APPLICATION         10
#define IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER 11
#define IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER      12


/* DLLCharacteristics field in optional header */

#define IMAGE_DLLCHARACTERISTICS_NO_BIND         0x0800
#define IMAGE_DLLCHARACTERISTICS_WDM_DRIVER      0x2000
#define IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER 0x8000


/* optional header data directory */

typedef struct _IMAGE_DATA_DIRECTORY {
  DWORD RVA;  /* relative virtual address (to base of image at runtime) */
  DWORD Size; /* size in bytes */
} IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY;


/* section information */

typedef struct _SECTION_HEADER {
  char Name[8];
  DWORD VirtualSize;
  DWORD VirtualAddress;
  DWORD SizeOfRawData;
  DWORD PointerToRawData;
  DWORD PointerToRelocations;
  DWORD PointerToLinenumbers;
  WORD NumberOfRelocations;
  WORD NumberOfLinenumbers;
  DWORD Characteristics;
} SECTION_HEADER, *PSECTION_HEADER;


/* section flags */

#define IMAGE_SCN_TYPE_REG               0x00000000
#define IMAGE_SCN_TYPE_DSECT             0x00000001
#define IMAGE_SCN_TYPE_NOLOAD            0x00000002
#define IMAGE_SCN_TYPE_GROUP             0x00000004
#define IMAGE_SCN_TYPE_NO_PAD            0x00000008
#define IMAGE_SCN_TYPE_COPY              0x00000010
#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_TYPE_OVER              0x00000400
#define IMAGE_SCN_LNK_REMOVE             0x00000800
#define IMAGE_SCN_LNK_COMDAT             0x00001000
#define IMAGE_SCN_MEM_FARDATA            0x00008000
#define IMAGE_SCN_MEM_PURGEABLE          0x00020000 /* huh? these two */
#define IMAGE_SCN_MEM_16BIT              0x00020000 /* have the same value */
#define IMAGE_SCN_MEM_LOCKED             0x00040000
#define IMAGE_SCN_MEM_PRELOAD            0x00080000
#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_ALIGN_128BYTES         0x00800000
#define IMAGE_SCN_ALIGN_256BYTES         0x00900000
#define IMAGE_SCN_ALIGN_512BYTES         0x00a00000
#define IMAGE_SCN_ALIGN_1024BYTES        0x00b00000
#define IMAGE_SCN_ALIGN_2048BYTES        0x00c00000
#define IMAGE_SCN_ALIGN_4096BYTES        0x00d00000
#define IMAGE_SCN_ALIGN_8192BYTES        0x00e00000
#define IMAGE_SCN_LNK_NRELOC_OVFL        0x01000000
#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


/* COFF relocations */

typedef struct _COFF_RELOCATIONS {
  DWORD VirtualAddress;
  DWORD SymbolTableIndex;
  WORD Type;
} COFF_RELOCATIONS, *PCOFF_RELOCATIONS;

/* COFF relocation type indicators */

/* IA-32 */
#define IMAGE_REL_I386_ABSOLUTE 0x0000
#define IMAGE_REL_I386_DIR16    0x0001
#define IMAGE_REL_I386_REL16    0x0002
#define IMAGE_REL_I386_DIR32    0x0006
#define IMAGE_REL_I386_DIR32NB  0x0007
#define IMAGE_REL_I386_SEG12    0x0009
#define IMAGE_REL_I386_SECTION  0x000a
#define IMAGE_REL_I386_SECREL   0x000b
#define IMAGE_REL_I386_REL32    0x0014

/* Alpha */
#define IMAGE_REL_ALPHA_ABSOLUTE       0x0000
#define IMAGE_REL_ALPHA_REFLONG        0x0001
#define IMAGE_REL_ALPHA_REFQUAD        0x0002
#define IMAGE_REL_ALPHA_GPREL32        0x0003
#define IMAGE_REL_ALPHA_LITERAL        0x0004
#define IMAGE_REL_ALPHA_LITUSE         0x0005
#define IMAGE_REL_ALPHA_GPDISP         0x0006
#define IMAGE_REL_ALPHA_BRADDR         0x0007
#define IMAGE_REL_ALPHA_HINT           0x0008
#define IMAGE_REL_ALPHA_INLINE_REFLONG 0x0009
#define IMAGE_REL_ALPHA_REFHI          0x000a
#define IMAGE_REL_ALPHA_REFLO          0x000b
#define IMAGE_REL_ALPHA_PAIR           0x000c
#define IMAGE_REL_ALPHA_MATCH          0x000d
#define IMAGE_REL_ALPHA_SECTION        0x000e
#define IMAGE_REL_ALPHA_SECREL         0x000f
#define IMAGE_REL_ALPHA_REFLONGNB      0x0010
#define IMAGE_REL_ALPHA_SECRELLO       0x0011
#define IMAGE_REL_ALPHA_SECRELHI       0x0012
#define IMAGE_REL_ALPHA_REFQ3          0x0013
#define IMAGE_REL_ALPHA_REFQ2          0x0014
#define IMAGE_REL_ALPHA_REFQ1          0x0015
#define IMAGE_REL_ALPHA_GPRELLO        0x0016
#define IMAGE_REL_ALPHA_GPRELHI        0x0017

/* IBM PowerPC */
/* Hitachi SuperH */
/* ARM */
/* MIPS */
/* if I ever get around to including support for these processors,
   then I'll fill out these sections */


/* COFF line numbers */

typedef struct _COFF_LINE_NUMBERS {
  union {
    DWORD SymbolTableIndex;
    DWORD RVA;
  } Type;
  WORD Linenumber;
  DWORD SymbolTableIndex;
  DWORD VirtualAddress;
} COFF_LINE_NUMBERS, *PCOFF_LINE_NUMBERS;


/* COFF symbol table */

#define SIZE_SYMBOL_TABLE 18

typedef struct _COFF_SYMBOL_TABLE {
  union {
    char ShortName[8];
    struct {
      DWORD Zeroes;
      DWORD Offset;
    } LongName;
  } Name;
  DWORD Value;
  WORD SectionNumber;
  WORD Type;
  BYTE StorageClass;
  BYTE NumberOfAuxSymbols;
} COFF_SYMBOL_TABLE, *PCOFF_SYMBOL_TABLE;

/* section number values */

#define IMAGE_SYM_UNDEFINED (0UL)
#define IMAGE_SYM_ABSOLUTE  (-1UL)
#define IMAGE_SYM_DEBUG     (-2UL)

/* type representation */

/* simple types */
#define IMAGE_TYPE_MSB(type) ((type) >> 8)
/* complex types */
#define IMAGE_TYPE_LSB(type) ((type) & 0x00ff)

/* LSB */
#define IMAGE_SYM_TYPE_NULL   0 /* Microsoft tools use this setting */
#define IMAGE_SYM_TYPE_VOID   1
#define IMAGE_SYM_TYPE_CHAR   2
#define IMAGE_SYM_TYPE_SHORT  3
#define IMAGE_SYM_TYPE_INT    4
#define IMAGE_SYM_TYPE_LONG   5
#define IMAGE_SYM_TYPE_FLOAT  6
#define IMAGE_SYM_TYPE_DOUBLE 7
#define IMAGE_SYM_TYPE_STRUCT 8
#define IMAGE_SYM_TYPE_UNION  9
#define IMAGE_SYM_TYPE_ENUM   10
#define IMAGE_SYM_TYPE_MOE    11
#define IMAGE_SYM_TYPE_BYTE   12
#define IMAGE_SYM_TYPE_WORD   13
#define IMAGE_SYM_TYPE_UINT   14
#define IMAGE_SYM_TYPE_DWORD  15

/* MSB */
#define IMAGE_SYM_DTYPE_NULL     0 /* Microsoft tools use either this value */
#define IMAGE_SYM_DTYPE_POINTER  1
#define IMAGE_SYM_DTYPE_FUNCTION 2 /* or this one */
#define IMAGE_SYM_DTYPE_ARRAY    3

/* storage class */
#define IMAGE_SYM_CLASS_END_OF_FUNCTION  0xff /* -1 */
#define IMAGE_SYM_CLASS_NULL             0
#define IMAGE_SYM_CLASS_AUTOMATIC        1
#define IMAGE_SYM_CLASS_EXTERNAL         2
#define IMAGE_SYM_CLASS_STATIC           3
#define IMAGE_SYM_CLASS_REGISTER         4
#define IMAGE_SYM_CLASS_EXTERNAL_DEF     5
#define IMAGE_SYM_CLASS_LABEL            6
#define IMAGE_SYM_CLASS_UNDEFINED_LABEL  7
#define IMAGE_SYM_CLASS_MEMBER_OF_STRUCT 8
#define IMAGE_SYM_CLASS_ARGUMENT         9
#define IMAGE_SYM_CLASS_STRUCT_TAG       10
#define IMAGE_SYM_CLASS_MEMBER_OF_UNION  11
#define IMAGE_SYM_CLASS_UNION_TAG        12
#define IMAGE_SYM_CLASS_TYPE_DEFINITION  13
#define IMAGE_SYM_CLASS_UNDEFINED_STATIC 14
#define IMAGE_SYM_CLASS_ENUM_TAG         15
#define IMAGE_SYM_CLASS_MEMBER_OF_ENUM   16
#define IMAGE_SYM_CLASS_REGISTER_PARAM   17
#define IMAGE_SYM_CLASS_BIT_FIELD        18
#define IMAGE_SYM_CLASS_BLOCK            100
#define IMAGE_SYM_CLASS_FUNCTION         101
#define IMAGE_SYM_CLASS_END_OF_STRUCT    102
#define IMAGE_SYM_CLASS_FILE             103
#define IMAGE_SYM_CLASS_SECTION          104
#define IMAGE_SYM_CLASS_WEAK_EXTERNAL    105


/* Auxiliary symbol records - these will always be 18 bytes */

/* format 1: function definitions */
typedef struct _AUXILIARY_FORMAT_ONE {
  DWORD TagIndex;
  DWORD TotalSize;
  DWORD PointerToLinenumber;
  DWORD PointerToNextFunction;
  BYTE Unused[2];
} AUXILIARY_FORMAT_ONE, *PAUXILIARY_FORMAT_ONE;

/* format 2: .bf and .ef symbols */
typedef struct _AUXILIARY_FORMAT_TWO {
  BYTE Unused1[4];
  WORD Linenumber;
  BYTE Unused2[6];
  DWORD PointerToNextFunction; /* only used with .bf */
  BYTE Unused3[2];
} AUXILIARY_FORMAT_TWO, *PAUXILIARY_FORMAT_TWO;

/* format 3: weak externals */
typedef struct _AUXILIARY_FORMAT_THREE {
  DWORD TagIndex;
  DWORD Characteristics;
  BYTE Unused[10];
} AUXILIARY_FORMAT_THREE, *PAUXILIARY_FORMAT_THREE;

/* format 4: files */
typedef struct _AUXILIARY_FORMAT_FOUR {
  char FileName[18];
} AUXILIARY_FORMAT_FOUR, *PAUXILIARY_FORMAT_FOUR;

/* format 5: section definitions */
typedef struct _AUXILIARY_FORMAT_FIVE {
  DWORD Length;
  WORD NumberOfRelocations;
  WORD NumberOfLineNumbers;
  DWORD CheckSum;
  WORD Number;
  BYTE Selection;
  BYTE Unused[3];
} AUXILIARY_FORMAT_FIVE, *PAUXILIARY_FORMAT_FIVE;


/* COMDAT sections */

#define IMAGE_COMDAT_SELECT_NODUPLICATES 1
#define IMAGE_COMDAT_SELECT_ANY          2
#define IMAGE_COMDAT_SELECT_SAME_SIZE    3
#define IMAGE_COMDAT_SELECT_EXACT_MATCH  4
#define IMAGE_COMDAT_SELECT_ASSOCIATIVE  5
#define IMAGE_COMDAT_SELECT_LARGEST      6


/* Attribute Certificate table */

typedef struct _ATTRIBUTE_CERTIFICATE_TABLE_ENTRY {
  DWORD CertificateData;
  DWORD SizeOfCertificate;
} ATTRIBUTE_CERTIFICATE_TABLE_ENTRY, *PATTRIBUTE_CERTIFICATE_TABLE_ENTRY;


/* Delay-Load Import table */

typedef struct _DELAY_LOAD_DIRECTORY_TABLE {
  DWORD Attributes;
  DWORD Name;
  DWORD ModuleHandle;
  DWORD DelayImportAddressTable;
  DWORD DelayImportNameTable;
  DWORD BoundDelayImportTable;
  DWORD UnloadDelayImportTable;
  DWORD TimeStamp;
} DELAY_LOAD_DIRECTORY_TABLE, *PDELAY_LOAD_DIRECTORY_TABLE;


/* the .debug section */

/* debug directory */

typedef struct _DEBUG_DIRECTORY {
  DWORD Characteristics;
  DWORD TimeDateStamp;
  WORD MajorVersion;
  WORD MinorVersion;
  DWORD Type;
  DWORD SizeOfData;
  DWORD AddressOfRawData;
  DWORD PointerToRawData;
} DEBUG_DIRECTORY, *PDEBUG_DIRECTORY;

/* debug type */

#define IMAGE_DEBUG_TYPE_UNKNOWN       0
#define IMAGE_DEBUG_TYPE_COFF          1
#define IMAGE_DEBUG_TYPE_CODEVIEW      2
#define IMAGE_DEBUG_TYPE_FPO           3
#define IMAGE_DEBUG_TYPE_MISC          4
#define IMAGE_DEBUG_TYPE_EXCEPTION     5
#define IMAGE_DEBUG_TYPE_FIXUP         6
#define IMAGE_DEBUG_TYPE_OMAP_TO_SRC   7
#define IMAGE_DEBUG_TYPE_OMAP_FROM_SRC 8
#define IMAGE_DEBUG_TYPE_BORLAND       9


/* .edata section - exported symbols */

/* ignore for now (pg 49) */


/* .idata section - imported symbols */

/* ignore for now (pg 52) */


/* .pdata section - function pointers for exception handling */

/* ignore for now (pg 54) */


/* .reloc section */

/* ignore for now (pg 55) */


/* .tls section */

/* ignore for now (pg 57) */


/* .rsrc section */

/* resource directory table */

typedef struct _RESOURCE_DIRECTORY_TABLE {
  DWORD Characteristics;
  DWORD TimeDateStamp;
  WORD MajorVersion;
  WORD MinorVersion;
  WORD NumberOfNameEntries;
  WORD NumberOfIDEntries;
} RESOURCE_DIRECTORY_TABLE, *PRESOURCE_DIRECTORY_TABLE;

/* resource directory entries */

typedef struct _RESOURCE_DIRECTORY_ENTRY {
  DWORD NameRVA;
  DWORD IntegerID;
  DWORD DataEntryRVA;
  DWORD SubdirectoryRVA;
} RESOURCE_DIRECTORY_ENTRY, *PRESOURCE_DIRECTORY_ENTRY;

/* resource directory string */
/* 2 byte length field followed by LENGTH sized unicode string */

/* resource data entry */




#endif /* !DOS_H */