#ifndef _DOS_DOSEXTENS_H_
#define _DOS_DOSEXTENS_H_

/*
    (C) 1995-97 AROS - The Amiga Replacement OS
    $Id: dosextens.h,v 1.7 1997/02/18 10:24:03 digulla Exp $

    Desc: LibBase and some important structures
    Lang: english
*/
#ifndef EXEC_TASKS_H
#   include <exec/tasks.h>
#endif
#ifndef EXEC_PORTS_H
#   include <exec/ports.h>
#endif
#ifndef EXEC_LIBRARIES_H
#   include <exec/libraries.h>
#endif
#ifndef EXEC_SEMAPHORES
#   include <exec/semaphores.h>
#endif
#include <devices/timer.h>
#ifndef EXEC_INTERRUPTS_H
#   include <exec/interrupts.h>
#endif
#ifndef DOS_DOS_H
#   include <dos/dos.h>
#endif

struct DosLibrary
{
    /* No public fields in there */
    struct Library	   dl_lib;
    struct ErrorString	 * dl_Errors;
    struct timerequest	 * dl_TimeReq;
    struct Library	 * dl_UtilityBase;
    struct Library	 * dl_IntuitionBase;
    struct SignalSemaphore dl_DosListLock;
    struct DosList	 * dl_DevInfo;
    struct ExecBase	 * dl_SysBase;
    BPTR		   dl_SegList;
    struct Device	 * dl_NulHandler;
    struct Unit 	 * dl_NulLock;

    struct SignalSemaphore dl_LDSigSem;
    struct Interrupt	   dl_LDHandler;
    APTR		   dl_LDOpenLibrary;
    APTR		   dl_LDOpenDevice;
    struct Process	 * dl_LDDemon;
    STRPTR		   dl_LDName;
    struct Process	 * dl_LDCaller;
    APTR		   dl_LDPtr;
    LONG		   dl_LDReturn;

    ULONG		   dl_ProcCnt;
    ULONG		   dl_Flags;
};

/* dl_Flags values */
#define RNF_WILDSTAR 0x1000000	/* Activate '*' as wildcard character */

struct CommandLineInterface
{
    LONG cli_Result2;
    BPTR cli_SetName;
    BPTR cli_CommandDir;
    LONG cli_ReturnCode;
    BPTR cli_CommandName;
    LONG cli_FailLevel;
    BPTR cli_Prompt;
    BPTR cli_StandardInput;
    BPTR cli_CurrentInput;
    BPTR cli_CommandFile;
    LONG cli_Interactive;
    LONG cli_Background;
    BPTR cli_CurrentOutput;
    LONG cli_DefaultStack;
    BPTR cli_StandardOutput;
    BPTR cli_Module;
};

struct Process
{
    struct Task     pr_Task;
    struct MsgPort  pr_MsgPort;
    WORD	    pr_Pad;
    BPTR	    pr_SegList;
    LONG	    pr_StackSize;
    APTR	    pr_GlobVec;
    LONG	    pr_TaskNum;
    BPTR	    pr_StackBase;
    LONG	    pr_Result2;
    BPTR	    pr_CurrentDir;
    BPTR	    pr_CIS;
    BPTR	    pr_COS;
    APTR	    pr_ConsoleTask;
    APTR	    pr_FileSystemTask;
    BPTR	    pr_CLI;
    APTR	    pr_ReturnAddr;
    APTR	    pr_PktWait;
    APTR	    pr_WindowPtr;
    BPTR	    pr_HomeDir;
    LONG	    pr_Flags;
    void	 (* pr_ExitCode)();
    LONG	    pr_ExitData;
    STRPTR	    pr_Arguments;
    struct MinList  pr_LocalVars;
    ULONG	    pr_ShellPrivate;
    BPTR	    pr_CES;
};

/* pr_Flags (all private) */
#define PRB_FREESEGLIST     0
#define PRB_FREECURRDIR     1
#define PRB_FREECLI	    2
#define PRB_CLOSEINPUT	    3
#define PRB_CLOSEOUTPUT     4
#define PRB_FREEARGS	    5
#define PRB_CLOSEERROR	    6
#define PRF_FREESEGLIST     0x01
#define PRF_FREECURRDIR     0x02
#define PRF_FREECLI	    0x04
#define PRF_CLOSEINPUT	    0x08
#define PRF_CLOSEOUTPUT     0x10
#define PRF_FREEARGS	    0x20
#define PRF_CLOSEERROR	    0x40

/* Dos list scanning and locking modes */
#define LDB_READ	    0
#define LDB_WRITE	    1
#define LDB_DEVICES	    2
#define LDB_VOLUMES	    3
#define LDB_ASSIGNS	    4
#define LDB_ENTRY	    5
#define LDB_DELETE	    6
#define LDF_READ	    0x01
#define LDF_WRITE	    0x02
#define LDF_DEVICES	    0x04
#define LDF_VOLUMES	    0x08
#define LDF_ASSIGNS	    0x10
#define LDF_ENTRY	    0x20
#define LDF_DELETE	    0x40
#define LDF_ALL 	    0x1c

struct FileHandle
{
    APTR	    fh_Dummy1;
    APTR	    fh_Dummy2;
    APTR	    fh_Dummy3;
    UBYTE	  * fh_Buf;
    UBYTE	  * fh_Pos;
    UBYTE	  * fh_End;
    ULONG	    fh_Size;
    ULONG	    fh_Flags;
    struct Device * fh_Device;
    struct Unit   * fh_Unit;
    LONG	    fh_Dummy4;
};

/* Private fh_Flags values */
#define FHF_WRITE	(~0ul/2+1)
#define FHF_BUF 	1

struct DosList
{
    struct DosList * dol_Next;	 /* Private pointer to next entry */
    LONG	     dol_Type;	 /* Node types (see below) */
    APTR	     dol_Dummy1;
    LONG	     dol_Dummy2[7];

    /*
	This field once was named dol_Name. It is now named dol_OldName
	to give you a hint that something has changed. Additionally to the
	old nasty BSTR there is now a new clean STRPTR for the same purpose.
	You may want to:
	1. Change your sources to reflect this change thus getting rid of
	   all BCPL stuff or
	2. just define dol_OldName to dol_Name before including this file
	   to stay downwards compatible.
    */
    BPTR	    dol_OldName; /* Old field */
    STRPTR	    dol_DevName; /* New field (in fact pointing to the same string) */
    struct Device * dol_Device;
    struct Unit   * dol_Unit;
};

/* dol_Type type values. Given to MakeDosEntry(). */
#define DLT_DEVICE	0	/* A real filesystem (or similar) */
#define DLT_DIRECTORY	1	/* Just a simple assign */
#define DLT_VOLUME	2	/* Volume node (for removable media) */
#define DLT_LATE	3	/* Late binding assign (not yet) */
#define DLT_NONBINDING	4	/* Nonbinding assign (not yet) */

/* Directory entry types */
#define ST_ROOT 	1	/* Root directory of filesystem */
#define ST_USERDIR	2	/* Normal directory */
#define ST_SOFTLINK	3	/* Soft link */
#define ST_LINKDIR	4	/* Hard link to a directory */
#define ST_FILE        -3	/* Normal file */
#define ST_LINKFILE    -4	/* Hard link to a file */
#define ST_PIPEFILE    -5	/* Special file */

struct DosPacket
{
   struct Message * dp_Link;
   struct MsgPort * dp_Port;
   LONG 	    dp_Type;
   LONG 	    dp_Res1;
   LONG 	    dp_Res2;
   LONG 	    dp_Arg1;
   LONG 	    dp_Arg2;
   LONG 	    dp_Arg3;
   LONG 	    dp_Arg4;
   LONG 	    dp_Arg5;
   LONG 	    dp_Arg6;
   LONG 	    dp_Arg7;
}; /* DosPacket */

#define dp_Action   dp_Type
#define dp_Status   dp_Res1
#define dp_Status2  dp_Res2
#define dp_BufAddr  dp_Arg1

/*
    Structure of the Dos resident list. Do NOT allocate it, use
    AddSegment(), and have a loot at the autodocs!
*/

struct Segment
{
    BPTR  seg_Next;
    LONG  seg_UC;
    BPTR  seg_Seg;
    UBYTE seg_Name[4]; /* actually the first 4 chars of BSTR name */
};

#define CMD_SYSTEM	-1
#define CMD_INTERNAL	-2
#define CMD_DISABLED	-999

struct DevProc
{
    struct MsgPort * dvp_Port;
    BPTR	     dvp_Lock;
    ULONG	     dvp_Flags;
    struct DosList * dvp_DevNode;
};

#endif /* DOS_DOSEXTENS_H */