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Sweden-Number/dlls/winedos/int21.c

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/*
* DOS interrupt 21h handler
*
* Copyright 1993, 1994 Erik Bos
* Copyright 1996 Alexandre Julliard
* Copyright 1997 Andreas Mohr
* Copyright 1998 Uwe Bonnes
* Copyright 1998, 1999 Ove Kaaven
* Copyright 2003 Thomas Mertes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "wine/winbase16.h"
#include "dosexe.h"
#include "miscemu.h"
#include "msdos.h"
#include "file.h"
#include "task.h"
#include "winerror.h"
#include "winuser.h"
#include "wine/unicode.h"
#include "wine/debug.h"
/*
* FIXME: Delete this reference when all int21 code has been moved to winedos.
*/
extern void WINAPI INT_Int21Handler( CONTEXT86 *context );
/*
* Forward declarations.
*/
static BOOL INT21_RenameFile( CONTEXT86 *context );
WINE_DEFAULT_DEBUG_CHANNEL(int21);
#include "pshpack1.h"
/*
* Structure for DOS data that can be accessed directly from applications.
* Real and protected mode pointers will be returned to this structure so
* the structure must be correctly packed.
*/
typedef struct _INT21_HEAP {
WORD uppercase_size; /* Size of the following table in bytes */
BYTE uppercase_table[128]; /* Uppercase equivalents of chars from 0x80 to 0xff. */
WORD lowercase_size; /* Size of the following table in bytes */
BYTE lowercase_table[256]; /* Lowercase equivalents of chars from 0x00 to 0xff. */
WORD collating_size; /* Size of the following table in bytes */
BYTE collating_table[256]; /* Values used to sort characters from 0x00 to 0xff. */
WORD filename_size; /* Size of the following filename data in bytes */
BYTE filename_reserved1; /* 0x01 for MS-DOS 3.30-6.00 */
BYTE filename_lowest; /* Lowest permissible character value for filename */
BYTE filename_highest; /* Highest permissible character value for filename */
BYTE filename_reserved2; /* 0x00 for MS-DOS 3.30-6.00 */
BYTE filename_exclude_first; /* First illegal character in permissible range */
BYTE filename_exclude_last; /* Last illegal character in permissible range */
BYTE filename_reserved3; /* 0x02 for MS-DOS 3.30-6.00 */
BYTE filename_illegal_size; /* Number of terminators in the following table */
BYTE filename_illegal_table[16]; /* Characters which terminate a filename */
WORD dbcs_size; /* Number of valid ranges in the following table */
BYTE dbcs_table[16]; /* Start/end bytes for N ranges and 00/00 as terminator */
BYTE misc_indos; /* Interrupt 21 nesting flag */
} INT21_HEAP;
struct FCB {
BYTE drive_number;
CHAR file_name[8];
CHAR file_extension[3];
WORD current_block_number;
WORD logical_record_size;
DWORD file_size;
WORD date_of_last_write;
WORD time_of_last_write;
BYTE file_number;
BYTE attributes;
WORD starting_cluster;
WORD sequence_number;
BYTE file_attributes;
BYTE unused;
BYTE record_within_current_block;
BYTE random_access_record_number[4];
};
struct XFCB {
BYTE xfcb_signature;
BYTE reserved[5];
BYTE xfcb_file_attribute;
BYTE fcb[37];
};
#include "poppack.h"
/***********************************************************************
* INT21_GetCurrentDrive
*
* Return current drive using scheme (0=A:, 1=B:, 2=C:, ...) or
* MAX_DOS_DRIVES on error.
*/
static BYTE INT21_GetCurrentDrive()
{
WCHAR current_directory[MAX_PATH];
if (!GetCurrentDirectoryW( MAX_PATH, current_directory ) ||
current_directory[1] != ':')
{
TRACE( "Failed to get current drive.\n" );
return MAX_DOS_DRIVES;
}
return toupperW( current_directory[0] ) - 'A';
}
/***********************************************************************
* INT21_MapDrive
*
* Convert drive number from scheme (0=default, 1=A:, 2=B:, ...) into
* scheme (0=A:, 1=B:, 2=C:, ...) or MAX_DOS_DRIVES on error.
*/
static BYTE INT21_MapDrive( BYTE drive )
{
if (drive)
{
WCHAR drivespec[3] = {'A', ':', 0};
UINT drivetype;
drivespec[0] += drive - 1;
drivetype = GetDriveTypeW( drivespec );
if (drivetype == DRIVE_UNKNOWN || drivetype == DRIVE_NO_ROOT_DIR)
return MAX_DOS_DRIVES;
return drive - 1;
}
return INT21_GetCurrentDrive();
}
/***********************************************************************
* INT21_SetCurrentDrive
*
* Set current drive. Uses scheme (0=A:, 1=B:, 2=C:, ...).
*/
static void INT21_SetCurrentDrive( BYTE drive )
{
WCHAR drivespec[3] = {'A', ':', 0};
drivespec[0] += drive;
if (!SetCurrentDirectoryW( drivespec ))
TRACE( "Failed to set current drive.\n" );
}
/***********************************************************************
* INT21_ReadChar
*
* Reads a character from the standard input.
* Extended keycodes will be returned as two separate characters.
*/
static BOOL INT21_ReadChar( BYTE *input, CONTEXT86 *waitctx )
{
static BYTE pending_scan = 0;
if (pending_scan)
{
if (input)
*input = pending_scan;
if (waitctx)
pending_scan = 0;
return TRUE;
}
else
{
BYTE ascii;
BYTE scan;
if (!DOSVM_Int16ReadChar( &ascii, &scan, waitctx ))
return FALSE;
if (input)
*input = ascii;
if (waitctx && !ascii)
pending_scan = scan;
return TRUE;
}
}
/***********************************************************************
* INT21_GetSystemCountryCode
*
* Return DOS country code for default system locale.
*/
static WORD INT21_GetSystemCountryCode( void )
{
/*
* FIXME: Determine country code. We should probably use
* DOSCONF structure for that.
*/
return GetSystemDefaultLangID();
}
/***********************************************************************
* INT21_FillCountryInformation
*
* Fill 34-byte buffer with country information data using
* default system locale.
*/
static void INT21_FillCountryInformation( BYTE *buffer )
{
/* 00 - WORD: date format
* 00 = mm/dd/yy
* 01 = dd/mm/yy
* 02 = yy/mm/dd
*/
*(WORD*)(buffer + 0) = 0; /* FIXME: Get from locale */
/* 02 - BYTE[5]: ASCIIZ currency symbol string */
buffer[2] = '$'; /* FIXME: Get from locale */
buffer[3] = 0;
/* 07 - BYTE[2]: ASCIIZ thousands separator */
buffer[7] = 0; /* FIXME: Get from locale */
buffer[8] = 0;
/* 09 - BYTE[2]: ASCIIZ decimal separator */
buffer[9] = '.'; /* FIXME: Get from locale */
buffer[10] = 0;
/* 11 - BYTE[2]: ASCIIZ date separator */
buffer[11] = '/'; /* FIXME: Get from locale */
buffer[12] = 0;
/* 13 - BYTE[2]: ASCIIZ time separator */
buffer[13] = ':'; /* FIXME: Get from locale */
buffer[14] = 0;
/* 15 - BYTE: Currency format
* bit 2 = set if currency symbol replaces decimal point
* bit 1 = number of spaces between value and currency symbol
* bit 0 = 0 if currency symbol precedes value
* 1 if currency symbol follows value
*/
buffer[15] = 0; /* FIXME: Get from locale */
/* 16 - BYTE: Number of digits after decimal in currency */
buffer[16] = 0; /* FIXME: Get from locale */
/* 17 - BYTE: Time format
* bit 0 = 0 if 12-hour clock
* 1 if 24-hour clock
*/
buffer[17] = 1; /* FIXME: Get from locale */
/* 18 - DWORD: Address of case map routine */
*(DWORD*)(buffer + 18) = 0; /* FIXME: ptr to case map routine */
/* 22 - BYTE[2]: ASCIIZ data-list separator */
buffer[22] = ','; /* FIXME: Get from locale */
buffer[23] = 0;
/* 24 - BYTE[10]: Reserved */
memset( buffer + 24, 0, 10 );
}
/***********************************************************************
* INT21_FillHeap
*
* Initialize DOS heap.
*/
static void INT21_FillHeap( INT21_HEAP *heap )
{
static const char terminators[] = "\"\\./[]:|<>+=;,";
int i;
/*
* Uppercase table.
*/
heap->uppercase_size = 128;
for (i = 0; i < 128; i++)
heap->uppercase_table[i] = toupper( 128 + i );
/*
* Lowercase table.
*/
heap->lowercase_size = 256;
for (i = 0; i < 256; i++)
heap->lowercase_table[i] = tolower( i );
/*
* Collating table.
*/
heap->collating_size = 256;
for (i = 0; i < 256; i++)
heap->collating_table[i] = i;
/*
* Filename table.
*/
heap->filename_size = 8 + strlen(terminators);
heap->filename_illegal_size = strlen(terminators);
strcpy( heap->filename_illegal_table, terminators );
heap->filename_reserved1 = 0x01;
heap->filename_lowest = 0; /* FIXME: correct value? */
heap->filename_highest = 0xff; /* FIXME: correct value? */
heap->filename_reserved2 = 0x00;
heap->filename_exclude_first = 0x00; /* FIXME: correct value? */
heap->filename_exclude_last = 0x00; /* FIXME: correct value? */
heap->filename_reserved3 = 0x02;
/*
* DBCS lead byte table. This table is empty.
*/
heap->dbcs_size = 0;
memset( heap->dbcs_table, 0, sizeof(heap->dbcs_table) );
/*
* Initialize InDos flag.
*/
heap->misc_indos = 0;
}
/***********************************************************************
* INT21_GetHeapSelector
*
* Get segment/selector for DOS heap (INT21_HEAP).
* Creates and initializes heap on first call.
*/
static WORD INT21_GetHeapSelector( CONTEXT86 *context )
{
static WORD heap_segment = 0;
static WORD heap_selector = 0;
static BOOL heap_initialized = FALSE;
if (!heap_initialized)
{
INT21_HEAP *ptr = DOSVM_AllocDataUMB( sizeof(INT21_HEAP),
&heap_segment,
&heap_selector );
INT21_FillHeap( ptr );
heap_initialized = TRUE;
}
if (!ISV86(context) && DOSVM_IsWin16())
return heap_selector;
else
return heap_segment;
}
/***********************************************************************
* INT21_GetCurrentDirectory
*
* Handler for:
* - function 0x47
* - subfunction 0x47 of function 0x71
*/
static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context, BOOL islong )
{
char *buffer = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi);
BYTE new_drive = INT21_MapDrive( DL_reg(context) );
BYTE old_drive = INT21_GetCurrentDrive();
WCHAR pathW[MAX_PATH];
char pathA[MAX_PATH];
WCHAR *ptr = pathW;
TRACE( "drive %d\n", DL_reg(context) );
if (new_drive == MAX_DOS_DRIVES)
{
SetLastError(ERROR_INVALID_DRIVE);
return FALSE;
}
/*
* Grab current directory.
*/
INT21_SetCurrentDrive( new_drive );
if (!GetCurrentDirectoryW( MAX_PATH, pathW ))
{
INT21_SetCurrentDrive( old_drive );
return FALSE;
}
INT21_SetCurrentDrive( old_drive );
/*
* Convert into short format.
*/
if (!islong)
{
DWORD result = GetShortPathNameW( pathW, pathW, MAX_PATH );
if (!result)
return FALSE;
if (result > MAX_PATH)
{
WARN( "Short path too long!\n" );
SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
return FALSE;
}
}
/*
* The returned pathname does not include
* the drive letter, colon or leading backslash.
*/
if (ptr[0] == '\\')
{
/*
* FIXME: We should probably just strip host part from name...
*/
FIXME( "UNC names are not supported.\n" );
SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
return FALSE;
}
else if (!ptr[0] || ptr[1] != ':' || ptr[2] != '\\')
{
WARN( "Path is neither UNC nor DOS path: %s\n",
wine_dbgstr_w(ptr) );
SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
return FALSE;
}
else
{
/* Remove drive letter, colon and leading backslash. */
ptr += 3;
}
/*
* Convert into OEM string.
*/
if (!WideCharToMultiByte(CP_OEMCP, 0, ptr, -1, pathA,
MAX_PATH, NULL, NULL))
{
WARN( "Cannot convert path!\n" );
SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
return FALSE;
}
/*
* Success.
*/
if (!islong)
{
/* Undocumented success code. */
SET_AX( context, 0x0100 );
/* Truncate buffer to 64 bytes. */
pathA[63] = 0;
}
TRACE( "%c:=%s\n", 'A' + new_drive, pathA );
strcpy( buffer, pathA );
return TRUE;
}
/***********************************************************************
* INT21_SetCurrentDirectory
*
* Handler for:
* - function 0x3b
* - subfunction 0x3b of function 0x71
*/
static BOOL INT21_SetCurrentDirectory( CONTEXT86 *context )
{
WCHAR dirW[MAX_PATH];
char *dirA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
BYTE drive = INT21_GetCurrentDrive();
BOOL result;
TRACE( "SET CURRENT DIRECTORY %s\n", dirA );
MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
result = SetCurrentDirectoryW( dirW );
/* This function must not change current drive. */
INT21_SetCurrentDrive( drive );
return result;
}
/***********************************************************************
* INT21_CreateFile
*
* Handler for:
* - function 0x3c
* - function 0x3d
* - function 0x5b
* - function 0x6c
* - subfunction 0x6c of function 0x71
*/
static BOOL INT21_CreateFile( CONTEXT86 *context,
DWORD pathSegOff,
BOOL returnStatus,
WORD dosAccessShare,
BYTE dosAction )
{
WORD dosStatus;
char *pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, pathSegOff);
WCHAR pathW[MAX_PATH];
DWORD winAccess;
DWORD winAttributes;
HANDLE winHandle;
DWORD winMode;
DWORD winSharing;
TRACE( "CreateFile called: function=%02x, action=%02x, access/share=%04x, "
"create flags=%04x, file=%s.\n",
AH_reg(context), dosAction, dosAccessShare, CX_reg(context), pathA );
/*
* Application tried to create/open a file whose name
* ends with a backslash. This is not allowed.
*
* FIXME: This needs to be validated, especially the return value.
*/
if (pathA[strlen(pathA) - 1] == '/')
{
SetLastError( ERROR_FILE_NOT_FOUND );
return FALSE;
}
/*
* Convert DOS action flags into Win32 creation disposition parameter.
*/
switch(dosAction)
{
case 0x01:
winMode = OPEN_EXISTING;
break;
case 0x02:
winMode = TRUNCATE_EXISTING;
break;
case 0x10:
winMode = CREATE_NEW;
break;
case 0x11:
winMode = OPEN_ALWAYS;
break;
case 0x12:
winMode = CREATE_ALWAYS;
break;
default:
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
/*
* Convert DOS access/share flags into Win32 desired access parameter.
*/
switch(dosAccessShare & 0x07)
{
case OF_READ:
winAccess = GENERIC_READ;
break;
case OF_WRITE:
winAccess = GENERIC_WRITE;
break;
case OF_READWRITE:
winAccess = GENERIC_READ | GENERIC_WRITE;
break;
case 0x04:
/*
* Read-only, do not modify file's last-access time (DOS7).
*
* FIXME: How to prevent modification of last-access time?
*/
winAccess = GENERIC_READ;
break;
default:
winAccess = 0;
}
/*
* Convert DOS access/share flags into Win32 share mode parameter.
*/
switch(dosAccessShare & 0x70)
{
case OF_SHARE_EXCLUSIVE:
winSharing = 0;
break;
case OF_SHARE_DENY_WRITE:
winSharing = FILE_SHARE_READ;
break;
case OF_SHARE_DENY_READ:
winSharing = FILE_SHARE_WRITE;
break;
case OF_SHARE_DENY_NONE:
case OF_SHARE_COMPAT:
default:
winSharing = FILE_SHARE_READ | FILE_SHARE_WRITE;
}
/*
* FIXME: Bit (dosAccessShare & 0x80) represents inheritance.
* What to do with this bit?
* FIXME: Bits in the high byte of dosAccessShare are not supported.
* See both function 0x6c and subfunction 0x6c of function 0x71 for
* definition of these bits.
*/
/*
* Convert DOS create attributes into Win32 flags and attributes parameter.
*/
if (winMode == OPEN_EXISTING || winMode == TRUNCATE_EXISTING)
{
winAttributes = 0;
}
else
{
WORD dosAttributes = CX_reg(context);
if (dosAttributes & FILE_ATTRIBUTE_LABEL)
{
/*
* Application tried to create volume label entry.
* This is difficult to support so we do not allow it.
*
* FIXME: If volume does not already have a label,
* this function is supposed to succeed.
*/
SetLastError( ERROR_ACCESS_DENIED );
return TRUE;
}
winAttributes = dosAttributes &
(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN |
FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_ARCHIVE);
}
/*
* Open the file.
*/
MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
winHandle = CreateFileW( pathW, winAccess, winSharing, NULL,
winMode, winAttributes, 0 );
if (winHandle == INVALID_HANDLE_VALUE)
return FALSE;
/*
* Determine DOS file status.
*
* 1 = file opened
* 2 = file created
* 3 = file replaced
*/
switch(winMode)
{
case OPEN_EXISTING:
dosStatus = 1;
break;
case TRUNCATE_EXISTING:
dosStatus = 3;
break;
case CREATE_NEW:
dosStatus = 2;
break;
case OPEN_ALWAYS:
dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 1 : 2;
break;
case CREATE_ALWAYS:
dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 3 : 2;
break;
default:
dosStatus = 0;
}
/*
* Return DOS file handle and DOS status.
*/
SET_AX( context, Win32HandleToDosFileHandle(winHandle) );
if (returnStatus)
SET_CX( context, dosStatus );
TRACE( "CreateFile finished: handle=%d, status=%d.\n",
AX_reg(context), dosStatus );
return TRUE;
}
/***********************************************************************
* INT21_BufferedInput
*
* Handler for function 0x0a and reading from console using
* function 0x3f.
*
* Reads a string of characters from standard input until
* enter key is pressed. Returns either number of characters
* read from console including terminating CR or
* zero if capacity was zero.
*/
static WORD INT21_BufferedInput( CONTEXT86 *context, BYTE *ptr, WORD capacity )
{
BYTE length = 0;
/*
* Return immediately if capacity is zero.
*/
if (capacity == 0)
return 0;
while(TRUE)
{
BYTE ascii;
BYTE scan;
DOSVM_Int16ReadChar( &ascii, &scan, context );
if (ascii == '\r' || ascii == '\n')
{
/*
* FIXME: What should be echoed here?
*/
DOSVM_PutChar( '\r' );
DOSVM_PutChar( '\n' );
ptr[length] = '\r';
return length + 1;
}
/*
* FIXME: This function is supposed to support
* DOS editing keys...
*/
/*
* If the buffer becomes filled to within one byte of
* capacity, DOS rejects all further characters up to,
* but not including, the terminating carriage return.
*/
if (ascii != 0 && length < capacity-1)
{
DOSVM_PutChar( ascii );
ptr[length] = ascii;
length++;
}
}
}
/***********************************************************************
* INT21_GetCurrentDTA
*/
static BYTE *INT21_GetCurrentDTA( CONTEXT86 *context )
{
TDB *pTask = GlobalLock16(GetCurrentTask());
/* FIXME: This assumes DTA was set correctly! */
return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
(DWORD)OFFSETOF(pTask->dta) );
}
/***********************************************************************
* INT21_OpenFileUsingFCB
*
* Handler for function 0x0f.
*
* PARAMS
* DX:DX [I/O] File control block (FCB or XFCB) of unopened file
*
* RETURNS (in AL)
* 0x00: successful
* 0xff: failed
*
* NOTES
* Opens a FCB file for read/write in compatibility mode. Upon calling
* the FCB must have the drive_number, file_name, and file_extension
* fields filled and all other bytes cleared.
*/
static void INT21_OpenFileUsingFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
char file_path[16];
char *pos;
HANDLE handle;
HFILE16 hfile16;
BY_HANDLE_FILE_INFORMATION info;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
AL_result = 0;
file_path[0] = 'A' + INT21_MapDrive( fcb->drive_number );
if (AL_result == 0) {
file_path[1] = ':';
pos = &file_path[2];
memcpy(pos, fcb->file_name, 8);
pos[8] = ' ';
pos[9] = '\0';
pos = strchr(pos, ' ');
*pos = '.';
pos++;
memcpy(pos, fcb->file_extension, 3);
pos[3] = ' ';
pos[4] = '\0';
pos = strchr(pos, ' ');
*pos = '\0';
handle = (HANDLE) _lopen(file_path, OF_READWRITE);
if (handle == INVALID_HANDLE_VALUE) {
TRACE("_lopen(\"%s\") failed: INVALID_HANDLE_VALUE\n", file_path);
AL_result = 0xff; /* failed */
} else {
hfile16 = Win32HandleToDosFileHandle(handle);
if (hfile16 == HFILE_ERROR16) {
TRACE("Win32HandleToDosFileHandle(%p) failed: HFILE_ERROR\n", handle);
CloseHandle(handle);
AL_result = 0xff; /* failed */
} else if (hfile16 > 255) {
TRACE("hfile16 (=%d) larger than 255 for \"%s\"\n", hfile16, file_path);
_lclose16(hfile16);
AL_result = 0xff; /* failed */
} else {
if (!GetFileInformationByHandle(handle, &info)) {
TRACE("GetFileInformationByHandle(%d, %p) for \"%s\" failed\n",
hfile16, handle, file_path);
_lclose16(hfile16);
AL_result = 0xff; /* failed */
} else {
fcb->drive_number = file_path[0] - 'A' + 1;
fcb->current_block_number = 0;
fcb->logical_record_size = 128;
fcb->file_size = info.nFileSizeLow;
FileTimeToDosDateTime(&info.ftLastWriteTime,
&fcb->date_of_last_write, &fcb->time_of_last_write);
fcb->file_number = hfile16;
fcb->attributes = 0xc2;
fcb->starting_cluster = 0; /* don't know correct init value */
fcb->sequence_number = 0; /* don't know correct init value */
fcb->file_attributes = info.dwFileAttributes;
/* The following fields are not initialized */
/* by the native function: */
/* unused */
/* record_within_current_block */
/* random_access_record_number */
TRACE("successful opened file \"%s\" as %d (handle %p)\n",
file_path, hfile16, handle);
AL_result = 0x00; /* successful */
} /* if */
} /* if */
} /* if */
} /* if */
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_CloseFileUsingFCB
*
* Handler for function 0x10.
*
* PARAMS
* DX:DX [I/O] File control block (FCB or XFCB) of open file
*
* RETURNS (in AL)
* 0x00: successful
* 0xff: failed
*
* NOTES
* Closes a FCB file.
*/
static void INT21_CloseFileUsingFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
if (_lclose16((HFILE16) fcb->file_number) != 0) {
TRACE("_lclose16(%d) failed\n", fcb->file_number);
AL_result = 0xff; /* failed */
} else {
TRACE("successful closed file %d\n", fcb->file_number);
AL_result = 0x00; /* successful */
} /* if */
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_SequentialReadFromFCB
*
* Handler for function 0x14.
*
* PARAMS
* DX:DX [I/O] File control block (FCB or XFCB) of open file
*
* RETURNS (in AL)
* 0: successful
* 1: end of file, no data read
* 2: segment wrap in DTA, no data read (not returned now)
* 3: end of file, partial record read
*
* NOTES
* Reads a record with the size FCB->logical_record_size from the FCB
* to the disk transfer area. The position of the record is specified
* with FCB->current_block_number and FCB->record_within_current_block.
* Then FCB->current_block_number and FCB->record_within_current_block
* are updated to point to the next record. If a partial record is
* read, it is filled with zeros up to the FCB->logical_record_size.
*/
static void INT21_SequentialReadFromFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
HANDLE handle;
DWORD record_number;
long position;
BYTE *disk_transfer_area;
UINT bytes_read;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
if (handle == INVALID_HANDLE_VALUE) {
TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
fcb->file_number);
AL_result = 0x01; /* end of file, no data read */
} else {
record_number = 128 * fcb->current_block_number + fcb->record_within_current_block;
position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
if (position != record_number * fcb->logical_record_size) {
TRACE("seek(%d, %ld, 0) failed with %ld\n",
fcb->file_number, record_number * fcb->logical_record_size, position);
AL_result = 0x01; /* end of file, no data read */
} else {
disk_transfer_area = INT21_GetCurrentDTA(context);
bytes_read = _lread((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
if (bytes_read != fcb->logical_record_size) {
TRACE("_lread(%d, %p, %d) failed with %d\n",
fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_read);
if (bytes_read == 0) {
AL_result = 0x01; /* end of file, no data read */
} else {
memset(&disk_transfer_area[bytes_read], 0, fcb->logical_record_size - bytes_read);
AL_result = 0x03; /* end of file, partial record read */
} /* if */
} else {
TRACE("successful read %d bytes from record %ld (position %ld) of file %d (handle %p)\n",
bytes_read, record_number, position, fcb->file_number, handle);
AL_result = 0x00; /* successful */
} /* if */
} /* if */
} /* if */
if (AL_result == 0x00 || AL_result == 0x03) {
if (fcb->record_within_current_block == 127) {
fcb->record_within_current_block = 0;
fcb->current_block_number++;
} else {
fcb->record_within_current_block++;
} /* if */
} /* if */
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_SequentialWriteToFCB
*
* Handler for function 0x15.
*
* PARAMS
* DX:DX [I/O] File control block (FCB or XFCB) of open file
*
* RETURNS (in AL)
* 0: successful
* 1: disk full
* 2: segment wrap in DTA (not returned now)
*
* NOTES
* Writes a record with the size FCB->logical_record_size from the disk
* transfer area to the FCB. The position of the record is specified
* with FCB->current_block_number and FCB->record_within_current_block.
* Then FCB->current_block_number and FCB->record_within_current_block
* are updated to point to the next record.
*/
static void INT21_SequentialWriteToFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
HANDLE handle;
DWORD record_number;
long position;
BYTE *disk_transfer_area;
UINT bytes_written;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
if (handle == INVALID_HANDLE_VALUE) {
TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
fcb->file_number);
AL_result = 0x01; /* disk full */
} else {
record_number = 128 * fcb->current_block_number + fcb->record_within_current_block;
position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
if (position != record_number * fcb->logical_record_size) {
TRACE("seek(%d, %ld, 0) failed with %ld\n",
fcb->file_number, record_number * fcb->logical_record_size, position);
AL_result = 0x01; /* disk full */
} else {
disk_transfer_area = INT21_GetCurrentDTA(context);
bytes_written = _lwrite((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
if (bytes_written != fcb->logical_record_size) {
TRACE("_lwrite(%d, %p, %d) failed with %d\n",
fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_written);
AL_result = 0x01; /* disk full */
} else {
TRACE("successful written %d bytes from record %ld (position %ld) of file %d (handle %p)\n",
bytes_written, record_number, position, fcb->file_number, handle);
AL_result = 0x00; /* successful */
} /* if */
} /* if */
} /* if */
if (AL_result == 0x00) {
if (fcb->record_within_current_block == 127) {
fcb->record_within_current_block = 0;
fcb->current_block_number++;
} else {
fcb->record_within_current_block++;
} /* if */
} /* if */
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_ReadRandomRecordFromFCB
*
* Handler for function 0x21.
*
* PARAMS
* DX:DX [I/O] File control block (FCB or XFCB) of open file
*
* RETURNS (in AL)
* 0: successful
* 1: end of file, no data read
* 2: segment wrap in DTA, no data read (not returned now)
* 3: end of file, partial record read
*
* NOTES
* Reads a record with the size FCB->logical_record_size from
* the FCB to the disk transfer area. The position of the record
* is specified with FCB->random_access_record_number. The
* FCB->random_access_record_number is not updated. If a partial record
* is read, it is filled with zeros up to the FCB->logical_record_size.
*/
static void INT21_ReadRandomRecordFromFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
HANDLE handle;
DWORD record_number;
long position;
BYTE *disk_transfer_area;
UINT bytes_read;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
memcpy(&record_number, fcb->random_access_record_number, 4);
handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
if (handle == INVALID_HANDLE_VALUE) {
TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
fcb->file_number);
AL_result = 0x01; /* end of file, no data read */
} else {
position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
if (position != record_number * fcb->logical_record_size) {
TRACE("seek(%d, %ld, 0) failed with %ld\n",
fcb->file_number, record_number * fcb->logical_record_size, position);
AL_result = 0x01; /* end of file, no data read */
} else {
disk_transfer_area = INT21_GetCurrentDTA(context);
bytes_read = _lread((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
if (bytes_read != fcb->logical_record_size) {
TRACE("_lread(%d, %p, %d) failed with %d\n",
fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_read);
if (bytes_read == 0) {
AL_result = 0x01; /* end of file, no data read */
} else {
memset(&disk_transfer_area[bytes_read], 0, fcb->logical_record_size - bytes_read);
AL_result = 0x03; /* end of file, partial record read */
} /* if */
} else {
TRACE("successful read %d bytes from record %ld (position %ld) of file %d (handle %p)\n",
bytes_read, record_number, position, fcb->file_number, handle);
AL_result = 0x00; /* successful */
} /* if */
} /* if */
} /* if */
fcb->current_block_number = record_number / 128;
fcb->record_within_current_block = record_number % 128;
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_WriteRandomRecordToFCB
*
* Handler for function 0x22.
*
* PARAMS
* DX:DX [I/O] File control block (FCB or XFCB) of open file
*
* RETURNS (in AL)
* 0: successful
* 1: disk full
* 2: segment wrap in DTA (not returned now)
*
* NOTES
* Writes a record with the size FCB->logical_record_size from
* the disk transfer area to the FCB. The position of the record
* is specified with FCB->random_access_record_number. The
* FCB->random_access_record_number is not updated.
*/
static void INT21_WriteRandomRecordToFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
HANDLE handle;
DWORD record_number;
long position;
BYTE *disk_transfer_area;
UINT bytes_written;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
memcpy(&record_number, fcb->random_access_record_number, 4);
handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
if (handle == INVALID_HANDLE_VALUE) {
TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
fcb->file_number);
AL_result = 0x01; /* disk full */
} else {
position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
if (position != record_number * fcb->logical_record_size) {
TRACE("seek(%d, %ld, 0) failed with %ld\n",
fcb->file_number, record_number * fcb->logical_record_size, position);
AL_result = 0x01; /* disk full */
} else {
disk_transfer_area = INT21_GetCurrentDTA(context);
bytes_written = _lwrite((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
if (bytes_written != fcb->logical_record_size) {
TRACE("_lwrite(%d, %p, %d) failed with %d\n",
fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_written);
AL_result = 0x01; /* disk full */
} else {
TRACE("successful written %d bytes from record %ld (position %ld) of file %d (handle %p)\n",
bytes_written, record_number, position, fcb->file_number, handle);
AL_result = 0x00; /* successful */
} /* if */
} /* if */
} /* if */
fcb->current_block_number = record_number / 128;
fcb->record_within_current_block = record_number % 128;
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_RandomBlockReadFromFCB
*
* Handler for function 0x27.
*
* PARAMS
* CX [I/O] Number of records to read
* DX:DX [I/O] File control block (FCB or XFCB) of open file
*
* RETURNS (in AL)
* 0: successful
* 1: end of file, no data read
* 2: segment wrap in DTA, no data read (not returned now)
* 3: end of file, partial record read
*
* NOTES
* Reads several records with the size FCB->logical_record_size from
* the FCB to the disk transfer area. The number of records to be
* read is specified in the CX register. The position of the first
* record is specified with FCB->random_access_record_number. The
* FCB->random_access_record_number, the FCB->current_block_number
* and FCB->record_within_current_block are updated to point to the
* next record after the records read. If a partial record is read,
* it is filled with zeros up to the FCB->logical_record_size. The
* CX register is set to the number of successfully read records.
*/
static void INT21_RandomBlockReadFromFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
HANDLE handle;
DWORD record_number;
long position;
BYTE *disk_transfer_area;
UINT records_requested;
UINT bytes_requested;
UINT bytes_read;
UINT records_read;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
memcpy(&record_number, fcb->random_access_record_number, 4);
handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
if (handle == INVALID_HANDLE_VALUE) {
TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
fcb->file_number);
records_read = 0;
AL_result = 0x01; /* end of file, no data read */
} else {
position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
if (position != record_number * fcb->logical_record_size) {
TRACE("seek(%d, %ld, 0) failed with %ld\n",
fcb->file_number, record_number * fcb->logical_record_size, position);
records_read = 0;
AL_result = 0x01; /* end of file, no data read */
} else {
disk_transfer_area = INT21_GetCurrentDTA(context);
records_requested = CX_reg(context);
bytes_requested = (UINT) records_requested * fcb->logical_record_size;
bytes_read = _lread((HFILE) handle, disk_transfer_area, bytes_requested);
if (bytes_read != bytes_requested) {
TRACE("_lread(%d, %p, %d) failed with %d\n",
fcb->file_number, disk_transfer_area, bytes_requested, bytes_read);
records_read = bytes_read / fcb->logical_record_size;
if (bytes_read % fcb->logical_record_size == 0) {
AL_result = 0x01; /* end of file, no data read */
} else {
records_read++;
memset(&disk_transfer_area[bytes_read], 0, records_read * fcb->logical_record_size - bytes_read);
AL_result = 0x03; /* end of file, partial record read */
} /* if */
} else {
TRACE("successful read %d bytes from record %ld (position %ld) of file %d (handle %p)\n",
bytes_read, record_number, position, fcb->file_number, handle);
records_read = records_requested;
AL_result = 0x00; /* successful */
} /* if */
} /* if */
} /* if */
record_number += records_read;
memcpy(fcb->random_access_record_number, &record_number, 4);
fcb->current_block_number = record_number / 128;
fcb->record_within_current_block = record_number % 128;
SET_CX(context, records_read);
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_RandomBlockWriteToFCB
*
* Handler for function 0x28.
*
* PARAMS
* CX [I/O] Number of records to write
* DX:DX [I/O] File control block (FCB or XFCB) of open file
*
* RETURNS (in AL)
* 0: successful
* 1: disk full
* 2: segment wrap in DTA (not returned now)
*
* NOTES
* Writes several records with the size FCB->logical_record_size from
* the disk transfer area to the FCB. The number of records to be
* written is specified in the CX register. The position of the first
* record is specified with FCB->random_access_record_number. The
* FCB->random_access_record_number, the FCB->current_block_number
* and FCB->record_within_current_block are updated to point to the
* next record after the records written. The CX register is set to
* the number of successfully written records.
*/
static void INT21_RandomBlockWriteToFCB( CONTEXT86 *context )
{
struct FCB *fcb;
struct XFCB *xfcb;
HANDLE handle;
DWORD record_number;
long position;
BYTE *disk_transfer_area;
UINT records_requested;
UINT bytes_requested;
UINT bytes_written;
UINT records_written;
BYTE AL_result;
fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (fcb->drive_number == 0xff) {
xfcb = (struct XFCB *) fcb;
fcb = (struct FCB *) xfcb->fcb;
} /* if */
memcpy(&record_number, fcb->random_access_record_number, 4);
handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
if (handle == INVALID_HANDLE_VALUE) {
TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
fcb->file_number);
records_written = 0;
AL_result = 0x01; /* disk full */
} else {
position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
if (position != record_number * fcb->logical_record_size) {
TRACE("seek(%d, %ld, 0) failed with %ld\n",
fcb->file_number, record_number * fcb->logical_record_size, position);
records_written = 0;
AL_result = 0x01; /* disk full */
} else {
disk_transfer_area = INT21_GetCurrentDTA(context);
records_requested = CX_reg(context);
bytes_requested = (UINT) records_requested * fcb->logical_record_size;
bytes_written = _lwrite((HFILE) handle, disk_transfer_area, bytes_requested);
if (bytes_written != bytes_requested) {
TRACE("_lwrite(%d, %p, %d) failed with %d\n",
fcb->file_number, disk_transfer_area, bytes_requested, bytes_written);
records_written = bytes_written / fcb->logical_record_size;
AL_result = 0x01; /* disk full */
} else {
TRACE("successful write %d bytes from record %ld (position %ld) of file %d (handle %p)\n",
bytes_written, record_number, position, fcb->file_number, handle);
records_written = records_requested;
AL_result = 0x00; /* successful */
} /* if */
} /* if */
} /* if */
record_number += records_written;
memcpy(fcb->random_access_record_number, &record_number, 4);
fcb->current_block_number = record_number / 128;
fcb->record_within_current_block = record_number % 128;
SET_CX(context, records_written);
SET_AL(context, AL_result);
}
/***********************************************************************
* INT21_CreateDirectory
*
* Handler for:
* - function 0x39
* - subfunction 0x39 of function 0x71
* - subfunction 0xff of function 0x43 (CL == 0x39)
*/
static BOOL INT21_CreateDirectory( CONTEXT86 *context )
{
WCHAR dirW[MAX_PATH];
char *dirA = CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx);
TRACE( "CREATE DIRECTORY %s\n", dirA );
MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
if (CreateDirectoryW(dirW, NULL))
return TRUE;
/*
* FIXME: CreateDirectory's LastErrors will clash with the ones
* used by DOS. AH=39 only returns 3 (path not found) and
* 5 (access denied), while CreateDirectory return several
* ones. Remap some of them. -Marcus
*/
switch (GetLastError())
{
case ERROR_ALREADY_EXISTS:
case ERROR_FILENAME_EXCED_RANGE:
case ERROR_DISK_FULL:
SetLastError(ERROR_ACCESS_DENIED);
break;
default:
break;
}
return FALSE;
}
/***********************************************************************
* INT21_ExtendedCountryInformation
*
* Handler for function 0x65.
*/
static void INT21_ExtendedCountryInformation( CONTEXT86 *context )
{
BYTE *dataptr = CTX_SEG_OFF_TO_LIN( context, context->SegEs, context->Edi );
TRACE( "GET EXTENDED COUNTRY INFORMATION, subfunction %02x\n",
AL_reg(context) );
/*
* Check subfunctions that are passed country and code page.
*/
if (AL_reg(context) >= 0x01 && AL_reg(context) <= 0x07)
{
WORD country = DX_reg(context);
WORD codepage = BX_reg(context);
if (country != 0xffff && country != INT21_GetSystemCountryCode())
FIXME( "Requested info on non-default country %04x\n", country );
if (codepage != 0xffff && codepage != GetOEMCP())
FIXME( "Requested info on non-default code page %04x\n", codepage );
}
switch (AL_reg(context)) {
case 0x00: /* SET GENERAL INTERNATIONALIZATION INFO */
INT_BARF( context, 0x21 );
SET_CFLAG( context );
break;
case 0x01: /* GET GENERAL INTERNATIONALIZATION INFO */
TRACE( "Get general internationalization info\n" );
dataptr[0] = 0x01; /* Info ID */
*(WORD*)(dataptr+1) = 38; /* Size of the following info */
*(WORD*)(dataptr+3) = INT21_GetSystemCountryCode(); /* Country ID */
*(WORD*)(dataptr+5) = GetOEMCP(); /* Code page */
INT21_FillCountryInformation( dataptr + 7 );
SET_CX( context, 41 ); /* Size of returned info */
break;
case 0x02: /* GET POINTER TO UPPERCASE TABLE */
case 0x04: /* GET POINTER TO FILENAME UPPERCASE TABLE */
TRACE( "Get pointer to uppercase table\n" );
dataptr[0] = AL_reg(context); /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, uppercase_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x03: /* GET POINTER TO LOWERCASE TABLE */
TRACE( "Get pointer to lowercase table\n" );
dataptr[0] = 0x03; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, lowercase_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x05: /* GET POINTER TO FILENAME TERMINATOR TABLE */
TRACE("Get pointer to filename terminator table\n");
dataptr[0] = 0x05; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, filename_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x06: /* GET POINTER TO COLLATING SEQUENCE TABLE */
TRACE("Get pointer to collating sequence table\n");
dataptr[0] = 0x06; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, collating_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x07: /* GET POINTER TO DBCS LEAD BYTE TABLE */
TRACE("Get pointer to DBCS lead byte table\n");
dataptr[0] = 0x07; /* Info ID */
*(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
offsetof(INT21_HEAP, dbcs_size) );
SET_CX( context, 5 ); /* Size of returned info */
break;
case 0x20: /* CAPITALIZE CHARACTER */
case 0xa0: /* CAPITALIZE FILENAME CHARACTER */
TRACE("Convert char to uppercase\n");
SET_DL( context, toupper(DL_reg(context)) );
break;
case 0x21: /* CAPITALIZE STRING */
case 0xa1: /* CAPITALIZE COUNTED FILENAME STRING */
TRACE("Convert string to uppercase with length\n");
{
char *ptr = (char *)CTX_SEG_OFF_TO_LIN( context,
context->SegDs,
context->Edx );
WORD len = CX_reg(context);
while (len--) { *ptr = toupper(*ptr); ptr++; }
}
break;
case 0x22: /* CAPITALIZE ASCIIZ STRING */
case 0xa2: /* CAPITALIZE ASCIIZ FILENAME */
TRACE("Convert ASCIIZ string to uppercase\n");
_strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx) );
break;
case 0x23: /* DETERMINE IF CHARACTER REPRESENTS YES/NO RESPONSE */
INT_BARF( context, 0x21 );
SET_CFLAG( context );
break;
default:
INT_BARF( context, 0x21 );
SET_CFLAG(context);
break;
}
}
/***********************************************************************
* INT21_FileAttributes
*
* Handler for:
* - function 0x43
* - subfunction 0x43 of function 0x71
*/
static BOOL INT21_FileAttributes( CONTEXT86 *context,
BYTE subfunction,
BOOL islong )
{
WCHAR fileW[MAX_PATH];
char *fileA = CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx);
HANDLE handle;
BOOL status;
FILETIME filetime;
DWORD result;
WORD date, time;
switch (subfunction)
{
case 0x00: /* GET FILE ATTRIBUTES */
TRACE( "GET FILE ATTRIBUTES for %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
result = GetFileAttributesW( fileW );
if (result == -1)
return FALSE;
else
{
SET_CX( context, (WORD)result );
if (!islong)
SET_AX( context, (WORD)result ); /* DR DOS */
}
break;
case 0x01: /* SET FILE ATTRIBUTES */
TRACE( "SET FILE ATTRIBUTES 0x%02x for %s\n",
CX_reg(context), fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
if (!SetFileAttributesW( fileW, CX_reg(context) ))
return FALSE;
break;
case 0x02: /* GET COMPRESSED FILE SIZE */
TRACE( "GET COMPRESSED FILE SIZE for %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
result = GetCompressedFileSizeW( fileW, NULL );
if (result == INVALID_FILE_SIZE)
return FALSE;
else
{
SET_AX( context, LOWORD(result) );
SET_DX( context, HIWORD(result) );
}
break;
case 0x03: /* SET FILE LAST-WRITTEN DATE AND TIME */
if (!islong)
INT_BARF( context, 0x21 );
else
{
TRACE( "SET FILE LAST-WRITTEN DATE AND TIME, file %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
handle = CreateFileW( fileW, GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
return FALSE;
DosDateTimeToFileTime( DI_reg(context),
CX_reg(context),
&filetime );
status = SetFileTime( handle, NULL, NULL, &filetime );
CloseHandle( handle );
return status;
}
break;
case 0x04: /* GET FILE LAST-WRITTEN DATE AND TIME */
if (!islong)
INT_BARF( context, 0x21 );
else
{
TRACE( "GET FILE LAST-WRITTEN DATE AND TIME, file %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
handle = CreateFileW( fileW, GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
return FALSE;
status = GetFileTime( handle, NULL, NULL, &filetime );
if (status)
{
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DI( context, date );
SET_CX( context, time );
}
CloseHandle( handle );
return status;
}
break;
case 0x05: /* SET FILE LAST ACCESS DATE */
if (!islong)
INT_BARF( context, 0x21 );
else
{
TRACE( "SET FILE LAST ACCESS DATE, file %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
handle = CreateFileW( fileW, GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
return FALSE;
DosDateTimeToFileTime( DI_reg(context),
0,
&filetime );
status = SetFileTime( handle, NULL, &filetime, NULL );
CloseHandle( handle );
return status;
}
break;
case 0x06: /* GET FILE LAST ACCESS DATE */
if (!islong)
INT_BARF( context, 0x21 );
else
{
TRACE( "GET FILE LAST ACCESS DATE, file %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
handle = CreateFileW( fileW, GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
return FALSE;
status = GetFileTime( handle, NULL, &filetime, NULL );
if (status)
{
FileTimeToDosDateTime( &filetime, &date, NULL );
SET_DI( context, date );
}
CloseHandle( handle );
return status;
}
break;
case 0x07: /* SET FILE CREATION DATE AND TIME */
if (!islong)
INT_BARF( context, 0x21 );
else
{
TRACE( "SET FILE CREATION DATE AND TIME, file %s\n", fileA );
handle = CreateFileW( fileW, GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
return FALSE;
/*
* FIXME: SI has number of 10-millisecond units past time in CX.
*/
DosDateTimeToFileTime( DI_reg(context),
CX_reg(context),
&filetime );
status = SetFileTime( handle, &filetime, NULL, NULL );
CloseHandle( handle );
return status;
}
break;
case 0x08: /* GET FILE CREATION DATE AND TIME */
if (!islong)
INT_BARF( context, 0x21 );
else
{
TRACE( "GET FILE CREATION DATE AND TIME, handle %d\n",
BX_reg(context) );
handle = CreateFileW( fileW, GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
return FALSE;
status = GetFileTime( handle, &filetime, NULL, NULL );
if (status)
{
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DI( context, date );
SET_CX( context, time );
/*
* FIXME: SI has number of 10-millisecond units past
* time in CX.
*/
SET_SI( context, 0 );
}
CloseHandle(handle);
return status;
}
break;
case 0xff: /* EXTENDED-LENGTH FILENAME OPERATIONS */
if (islong || context->Ebp != 0x5053)
INT_BARF( context, 0x21 );
else
{
switch(CL_reg(context))
{
case 0x39:
if (!INT21_CreateDirectory( context ))
return FALSE;
break;
case 0x56:
if (!INT21_RenameFile( context ))
return FALSE;
break;
default:
INT_BARF( context, 0x21 );
}
}
break;
default:
INT_BARF( context, 0x21 );
}
return TRUE;
}
/***********************************************************************
* INT21_FileDateTime
*
* Handler for function 0x57.
*/
static BOOL INT21_FileDateTime( CONTEXT86 *context )
{
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
FILETIME filetime;
WORD date, time;
switch (AL_reg(context)) {
case 0x00: /* Get last-written stamp */
TRACE( "GET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
BX_reg(context) );
{
if (!GetFileTime( handle, NULL, NULL, &filetime ))
return FALSE;
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DX( context, date );
SET_CX( context, time );
break;
}
case 0x01: /* Set last-written stamp */
TRACE( "SET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
BX_reg(context) );
{
DosDateTimeToFileTime( DX_reg(context),
CX_reg(context),
&filetime );
if (!SetFileTime( handle, NULL, NULL, &filetime ))
return FALSE;
break;
}
case 0x04: /* Get last access stamp, DOS 7 */
TRACE( "GET FILE LAST ACCESS DATE AND TIME, handle %d\n",
BX_reg(context) );
{
if (!GetFileTime( handle, NULL, &filetime, NULL ))
return FALSE;
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DX( context, date );
SET_CX( context, time );
break;
}
case 0x05: /* Set last access stamp, DOS 7 */
TRACE( "SET FILE LAST ACCESS DATE AND TIME, handle %d\n",
BX_reg(context) );
{
DosDateTimeToFileTime( DX_reg(context),
CX_reg(context),
&filetime );
if (!SetFileTime( handle, NULL, &filetime, NULL ))
return FALSE;
break;
}
case 0x06: /* Get creation stamp, DOS 7 */
TRACE( "GET FILE CREATION DATE AND TIME, handle %d\n",
BX_reg(context) );
{
if (!GetFileTime( handle, &filetime, NULL, NULL ))
return FALSE;
FileTimeToDosDateTime( &filetime, &date, &time );
SET_DX( context, date );
SET_CX( context, time );
/*
* FIXME: SI has number of 10-millisecond units past time in CX.
*/
SET_SI( context, 0 );
break;
}
case 0x07: /* Set creation stamp, DOS 7 */
TRACE( "SET FILE CREATION DATE AND TIME, handle %d\n",
BX_reg(context) );
{
/*
* FIXME: SI has number of 10-millisecond units past time in CX.
*/
DosDateTimeToFileTime( DX_reg(context),
CX_reg(context),
&filetime );
if (!SetFileTime( handle, &filetime, NULL, NULL ))
return FALSE;
break;
}
default:
INT_BARF( context, 0x21 );
break;
}
return TRUE;
}
/***********************************************************************
* INT21_GetPSP
*
* Handler for functions 0x51 and 0x62.
*/
static void INT21_GetPSP( CONTEXT86 *context )
{
TRACE( "GET CURRENT PSP ADDRESS (%02x)\n", AH_reg(context) );
/*
* FIXME: should we return the original DOS PSP upon
* Windows startup ?
*/
if (!ISV86(context) && DOSVM_IsWin16())
SET_BX( context, LOWORD(GetCurrentPDB16()) );
else
SET_BX( context, DOSVM_psp );
}
/***********************************************************************
* INT21_Ioctl_Block
*
* Handler for block device IOCTLs.
*/
static void INT21_Ioctl_Block( CONTEXT86 *context )
{
BYTE *dataptr;
BYTE drive = INT21_MapDrive( BL_reg(context) );
WCHAR drivespec[4] = {'A', ':', '\\', 0};
UINT drivetype;
drivespec[0] += drive;
drivetype = GetDriveTypeW( drivespec );
if (drivetype == DRIVE_UNKNOWN || drivetype == DRIVE_NO_ROOT_DIR)
{
TRACE( "IOCTL - SUBFUNCTION %d - INVALID DRIVE %c:\n",
AL_reg(context), 'A' + drive );
SetLastError( ERROR_INVALID_DRIVE );
SET_AX( context, ERROR_INVALID_DRIVE );
SET_CFLAG( context );
return;
}
switch (AL_reg(context))
{
case 0x04: /* READ FROM BLOCK DEVICE CONTROL CHANNEL */
case 0x05: /* WRITE TO BLOCK DEVICE CONTROL CHANNEL */
INT_BARF( context, 0x21 );
break;
case 0x08: /* CHECK IF BLOCK DEVICE REMOVABLE */
TRACE( "IOCTL - CHECK IF BLOCK DEVICE REMOVABLE - %c:\n",
'A' + drive );
if (drivetype == DRIVE_REMOVABLE)
SET_AX( context, 0 ); /* removable */
else
SET_AX( context, 1 ); /* not removable */
break;
case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
TRACE( "IOCTL - CHECK IF BLOCK DEVICE REMOTE - %c:\n",
'A' + drive );
if (drivetype == DRIVE_REMOTE)
SET_DX( context, (1<<9) | (1<<12) ); /* remote + no direct IO */
else
SET_DX( context, 0 ); /* FIXME: use driver attr here */
break;
case 0x0d: /* GENERIC BLOCK DEVICE REQUEST */
/* Get pointer to IOCTL parameter block. */
dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
switch (CX_reg(context))
{
case 0x0841: /* write logical device track */
TRACE( "GENERIC IOCTL - Write logical device track - %c:\n",
'A' + drive);
{
WORD head = *(WORD *)dataptr+1;
WORD cyl = *(WORD *)dataptr+3;
WORD sect = *(WORD *)dataptr+5;
WORD nrsect = *(WORD *)dataptr+7;
BYTE *data = (BYTE *)dataptr+9; /* FIXME: is this correct? */
if (!DOSVM_RawWrite(drive, head*cyl*sect, nrsect, data, FALSE))
{
SET_AX( context, ERROR_WRITE_FAULT );
SET_CFLAG(context);
}
}
break;
case 0x084a: /* lock logical volume */
TRACE( "GENERIC IOCTL - Lock logical volume, level %d mode %d - %c:\n",
BH_reg(context), DX_reg(context), 'A' + drive );
break;
case 0x0860: /* get device parameters */
INT_Int21Handler( context );
break;
case 0x0861: /* read logical device track */
TRACE( "GENERIC IOCTL - Read logical device track - %c:\n",
'A' + drive);
{
WORD head = *(WORD *)dataptr+1;
WORD cyl = *(WORD *)dataptr+3;
WORD sect = *(WORD *)dataptr+5;
WORD nrsect = *(WORD *)dataptr+7;
BYTE *data = (BYTE *)dataptr+9; /* FIXME: is this correct? */
if (!DOSVM_RawRead(drive, head*cyl*sect, nrsect, data, FALSE))
{
SET_AX( context, ERROR_READ_FAULT );
SET_CFLAG(context);
}
}
break;
case 0x0866: /* get volume serial number */
INT_Int21Handler( context );
break;
case 0x086a: /* unlock logical volume */
TRACE( "GENERIC IOCTL - Logical volume unlocked - %c:\n",
'A' + drive );
break;
case 0x086f: /* get drive map information */
INT_Int21Handler( context );
break;
case 0x0872:
INT_Int21Handler( context );
break;
default:
INT_BARF( context, 0x21 );
}
break;
case 0x0e: /* GET LOGICAL DRIVE MAP */
TRACE( "IOCTL - GET LOGICAL DRIVE MAP - %c:\n",
'A' + drive );
/* FIXME: this is not correct if drive has mappings */
SET_AL( context, 0 ); /* drive has no mapping */
break;
case 0x0f: /* SET LOGICAL DRIVE MAP */
INT_Int21Handler( context );
break;
case 0x11: /* QUERY GENERIC IOCTL CAPABILITY */
default:
INT_BARF( context, 0x21 );
}
}
/***********************************************************************
* INT21_Ioctl_Char
*
* Handler for character device IOCTLs.
*/
static void INT21_Ioctl_Char( CONTEXT86 *context )
{
static const WCHAR emmxxxx0W[] = {'E','M','M','X','X','X','X','0',0};
static const WCHAR scsimgrW[] = {'S','C','S','I','M','G','R','$',0};
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
const DOS_DEVICE *dev = DOSFS_GetDeviceByHandle(handle);
if (dev && !strcmpiW( dev->name, emmxxxx0W ))
{
EMS_Ioctl_Handler(context);
return;
}
if (dev && !strcmpiW( dev->name, scsimgrW ) && AL_reg(context) == 2)
{
DOSVM_ASPIHandler(context);
return;
}
switch (AL_reg(context))
{
case 0x00: /* GET DEVICE INFORMATION */
TRACE( "IOCTL - GET DEVICE INFORMATION - %d\n", BX_reg(context) );
if (dev)
{
/*
* Returns attribute word in DX:
* Bit 14 - Device driver can process IOCTL requests.
* Bit 13 - Output until busy supported.
* Bit 11 - Driver supports OPEN/CLOSE calls.
* Bit 8 - Unknown.
* Bit 7 - Set (indicates device).
* Bit 6 - EOF on input.
* Bit 5 - Raw (binary) mode.
* Bit 4 - Device is special (uses int29).
* Bit 3 - Clock device.
* Bit 2 - NUL device.
* Bit 1 - Standard output.
* Bit 0 - Standard input.
*/
SET_DX( context, dev->flags );
}
else
{
/*
* Returns attribute word in DX:
* Bit 15 - File is remote.
* Bit 14 - Don't set file date/time on closing.
* Bit 11 - Media not removable.
* Bit 8 - Generate int24 if no disk space on write
* or read past end of file
* Bit 7 - Clear (indicates file).
* Bit 6 - File has not been written.
* Bit 5..0 - Drive number (0=A:,...)
*
* FIXME: Should check if file is on remote or removable drive.
* FIXME: Should use drive file is located on (and not current).
*/
SET_DX( context, 0x0140 + INT21_GetCurrentDrive() );
}
break;
case 0x01: /* SET DEVICE INFORMATION */
case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
case 0x06: /* GET INPUT STATUS */
case 0x07: /* GET OUTPUT STATUS */
INT_BARF( context, 0x21 );
break;
case 0x0a: /* CHECK IF HANDLE IS REMOTE */
TRACE( "IOCTL - CHECK IF HANDLE IS REMOTE - %d\n", BX_reg(context) );
/*
* Returns attribute word in DX:
* Bit 15 - Set if remote.
* Bit 14 - Set if date/time not set on close.
*
* FIXME: Should check if file is on remote drive.
*/
SET_DX( context, 0 );
break;
case 0x0c: /* GENERIC CHARACTER DEVICE REQUEST */
case 0x10: /* QUERY GENERIC IOCTL CAPABILITY */
default:
INT_BARF( context, 0x21 );
}
}
/***********************************************************************
* INT21_Ioctl
*
* Handler for function 0x44.
*/
static void INT21_Ioctl( CONTEXT86 *context )
{
switch (AL_reg(context))
{
case 0x00:
case 0x01:
case 0x02:
case 0x03:
INT21_Ioctl_Char( context );
break;
case 0x04:
case 0x05:
INT21_Ioctl_Block( context );
break;
case 0x06:
case 0x07:
INT21_Ioctl_Char( context );
break;
case 0x08:
case 0x09:
INT21_Ioctl_Block( context );
break;
case 0x0a:
INT21_Ioctl_Char( context );
break;
case 0x0b: /* SET SHARING RETRY COUNT */
TRACE( "SET SHARING RETRY COUNT: Pause %d, retries %d.\n",
CX_reg(context), DX_reg(context) );
if (!CX_reg(context))
{
SET_AX( context, 1 );
SET_CFLAG( context );
}
else
{
DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
if (DX_reg(context))
DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
RESET_CFLAG( context );
}
break;
case 0x0c:
INT21_Ioctl_Char( context );
break;
case 0x0d:
case 0x0e:
case 0x0f:
INT21_Ioctl_Block( context );
break;
case 0x10:
INT21_Ioctl_Char( context );
break;
case 0x11:
INT21_Ioctl_Block( context );
break;
case 0x12: /* DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION) */
TRACE( "DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION)\n" );
SET_CFLAG(context); /* Error / This is not DR DOS. */
SET_AX( context, 0x0001 ); /* Invalid function */
break;
case 0x52: /* DR DOS - DETERMINE DOS TYPE */
TRACE( "DR DOS - DETERMINE DOS TYPE\n" );
SET_CFLAG(context); /* Error / This is not DR DOS. */
SET_AX( context, 0x0001 ); /* Invalid function */
break;
case 0xe0: /* Sun PC-NFS API */
TRACE( "Sun PC-NFS API\n" );
/* not installed */
break;
default:
INT_BARF( context, 0x21 );
}
}
/***********************************************************************
* INT21_LongFilename
*
* Handler for function 0x71.
*/
static void INT21_LongFilename( CONTEXT86 *context )
{
BOOL bSetDOSExtendedError = FALSE;
if (HIBYTE(HIWORD(GetVersion16())) < 0x07)
{
TRACE( "LONG FILENAME - functions supported only under DOS7\n" );
SET_CFLAG( context );
SET_AL( context, 0 );
return;
}
switch (AL_reg(context))
{
case 0x0d: /* RESET DRIVE */
INT_BARF( context, 0x21 );
break;
case 0x39: /* LONG FILENAME - MAKE DIRECTORY */
if (!INT21_CreateDirectory( context ))
bSetDOSExtendedError = TRUE;
break;
case 0x3a: /* LONG FILENAME - REMOVE DIRECTORY */
{
WCHAR dirW[MAX_PATH];
char *dirA = CTX_SEG_OFF_TO_LIN(context,
context->SegDs, context->Edx);
TRACE( "LONG FILENAME - REMOVE DIRECTORY %s\n", dirA );
MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
if (!RemoveDirectoryW( dirW ))
bSetDOSExtendedError = TRUE;
}
break;
case 0x3b: /* LONG FILENAME - CHANGE DIRECTORY */
if (!INT21_SetCurrentDirectory( context ))
bSetDOSExtendedError = TRUE;
break;
case 0x41: /* LONG FILENAME - DELETE FILE */
{
WCHAR fileW[MAX_PATH];
char *fileA = CTX_SEG_OFF_TO_LIN(context,
context->SegDs, context->Edx);
TRACE( "LONG FILENAME - DELETE FILE %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
if (!DeleteFileW( fileW ))
bSetDOSExtendedError = TRUE;
}
break;
case 0x43: /* LONG FILENAME - EXTENDED GET/SET FILE ATTRIBUTES */
if (!INT21_FileAttributes( context, BL_reg(context), TRUE ))
bSetDOSExtendedError = TRUE;
break;
case 0x47: /* LONG FILENAME - GET CURRENT DIRECTORY */
if (!INT21_GetCurrentDirectory( context, TRUE ))
bSetDOSExtendedError = TRUE;
break;
case 0x4e: /* LONG FILENAME - FIND FIRST MATCHING FILE */
case 0x4f: /* LONG FILENAME - FIND NEXT MATCHING FILE */
INT_Int21Handler( context );
break;
case 0x56: /* LONG FILENAME - RENAME FILE */
if (!INT21_RenameFile(context))
bSetDOSExtendedError = TRUE;
break;
case 0x60: /* LONG FILENAME - CONVERT PATH */
INT_Int21Handler( context );
break;
case 0x6c: /* LONG FILENAME - CREATE OR OPEN FILE */
if (!INT21_CreateFile( context, context->Esi, TRUE,
BX_reg(context), DL_reg(context) ))
bSetDOSExtendedError = TRUE;
break;
case 0xa0: /* LONG FILENAME - GET VOLUME INFORMATION */
case 0xa1: /* LONG FILENAME - "FindClose" - TERMINATE DIRECTORY SEARCH */
INT_Int21Handler( context );
break;
case 0xa6: /* LONG FILENAME - GET FILE INFO BY HANDLE */
{
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
BY_HANDLE_FILE_INFORMATION *info =
CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
TRACE( "LONG FILENAME - GET FILE INFO BY HANDLE\n" );
if (!GetFileInformationByHandle(handle, info))
bSetDOSExtendedError = TRUE;
}
break;
case 0xa7: /* LONG FILENAME - CONVERT TIME */
switch (BL_reg(context))
{
case 0x00: /* FILE TIME TO DOS TIME */
{
WORD date, time;
FILETIME *filetime = CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Esi);
TRACE( "LONG FILENAME - FILE TIME TO DOS TIME\n" );
FileTimeToDosDateTime( filetime, &date, &time );
SET_DX( context, date );
SET_CX( context, time );
/*
* FIXME: BH has number of 10-millisecond units
* past time in CX.
*/
SET_BH( context, 0 );
}
break;
case 0x01: /* DOS TIME TO FILE TIME */
{
FILETIME *filetime = CTX_SEG_OFF_TO_LIN(context,
context->SegEs,
context->Edi);
TRACE( "LONG FILENAME - DOS TIME TO FILE TIME\n" );
/*
* FIXME: BH has number of 10-millisecond units
* past time in CX.
*/
DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
filetime );
}
break;
default:
INT_BARF( context, 0x21 );
break;
}
break;
case 0xa8: /* LONG FILENAME - GENERATE SHORT FILENAME */
case 0xa9: /* LONG FILENAME - SERVER CREATE OR OPEN FILE */
case 0xaa: /* LONG FILENAME - SUBST */
default:
INT_BARF( context, 0x21 );
}
if (bSetDOSExtendedError)
{
SET_AX( context, GetLastError() );
SET_CFLAG( context );
}
}
/***********************************************************************
* INT21_RenameFile
*
* Handler for:
* - function 0x56
* - subfunction 0x56 of function 0x71
* - subfunction 0xff of function 0x43 (CL == 0x56)
*/
static BOOL INT21_RenameFile( CONTEXT86 *context )
{
WCHAR fromW[MAX_PATH];
WCHAR toW[MAX_PATH];
char *fromA = CTX_SEG_OFF_TO_LIN(context,
context->SegDs,context->Edx);
char *toA = CTX_SEG_OFF_TO_LIN(context,
context->SegEs,context->Edi);
TRACE( "RENAME FILE %s to %s\n", fromA, toA );
MultiByteToWideChar(CP_OEMCP, 0, fromA, -1, fromW, MAX_PATH);
MultiByteToWideChar(CP_OEMCP, 0, toA, -1, toW, MAX_PATH);
return MoveFileW( fromW, toW );
}
/***********************************************************************
* INT21_GetExtendedError
*/
static void INT21_GetExtendedError( CONTEXT86 *context )
{
BYTE class, action, locus;
WORD error = GetLastError();
switch(error)
{
case ERROR_SUCCESS:
class = action = locus = 0;
break;
case ERROR_DIR_NOT_EMPTY:
class = EC_Exists;
action = SA_Ignore;
locus = EL_Disk;
break;
case ERROR_ACCESS_DENIED:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_CANNOT_MAKE:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Unknown;
break;
case ERROR_DISK_FULL:
case ERROR_HANDLE_DISK_FULL:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_FILE_EXISTS:
case ERROR_ALREADY_EXISTS:
class = EC_Exists;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_FILE_NOT_FOUND:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Disk;
break;
case ER_GeneralFailure:
class = EC_SystemFailure;
action = SA_Abort;
locus = EL_Unknown;
break;
case ERROR_INVALID_DRIVE:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_INVALID_HANDLE:
class = EC_ProgramError;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_LOCK_VIOLATION:
class = EC_AccessDenied;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_NO_MORE_FILES:
class = EC_MediaError;
action = SA_Abort;
locus = EL_Disk;
break;
case ER_NoNetwork:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Network;
break;
case ERROR_NOT_ENOUGH_MEMORY:
class = EC_OutOfResource;
action = SA_Abort;
locus = EL_Memory;
break;
case ERROR_PATH_NOT_FOUND:
class = EC_NotFound;
action = SA_Abort;
locus = EL_Disk;
break;
case ERROR_SEEK:
class = EC_NotFound;
action = SA_Ignore;
locus = EL_Disk;
break;
case ERROR_SHARING_VIOLATION:
class = EC_Temporary;
action = SA_Retry;
locus = EL_Disk;
break;
case ERROR_TOO_MANY_OPEN_FILES:
class = EC_ProgramError;
action = SA_Abort;
locus = EL_Disk;
break;
default:
FIXME("Unknown error %d\n", error );
class = EC_SystemFailure;
action = SA_Abort;
locus = EL_Unknown;
break;
}
TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
error, class, action, locus );
SET_AX( context, error );
SET_BH( context, class );
SET_BL( context, action );
SET_CH( context, locus );
}
/***********************************************************************
* DOSVM_Int21Handler
*
* Interrupt 0x21 handler.
*/
void WINAPI DOSVM_Int21Handler( CONTEXT86 *context )
{
BOOL bSetDOSExtendedError = FALSE;
TRACE( "AX=%04x BX=%04x CX=%04x DX=%04x "
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
AX_reg(context), BX_reg(context),
CX_reg(context), DX_reg(context),
SI_reg(context), DI_reg(context),
(WORD)context->SegDs, (WORD)context->SegEs,
context->EFlags );
/*
* Extended error is used by (at least) functions 0x2f to 0x62.
* Function 0x59 returns extended error and error should not
* be cleared before handling the function.
*/
if (AH_reg(context) >= 0x2f && AH_reg(context) != 0x59)
SetLastError(0);
RESET_CFLAG(context); /* Not sure if this is a good idea. */
switch(AH_reg(context))
{
case 0x00: /* TERMINATE PROGRAM */
TRACE("TERMINATE PROGRAM\n");
if (DOSVM_IsWin16())
ExitThread( 0 );
else
MZ_Exit( context, FALSE, 0 );
break;
case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
{
BYTE ascii;
TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
INT21_ReadChar( &ascii, context );
SET_AL( context, ascii );
/*
* FIXME: What to echo when extended keycodes are read?
*/
DOSVM_PutChar(AL_reg(context));
}
break;
case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
TRACE("Write Character to Standard Output\n");
DOSVM_PutChar(DL_reg(context));
break;
case 0x03: /* READ CHARACTER FROM STDAUX */
case 0x04: /* WRITE CHARACTER TO STDAUX */
case 0x05: /* WRITE CHARACTER TO PRINTER */
INT_BARF( context, 0x21 );
break;
case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
if (DL_reg(context) == 0xff)
{
TRACE("Direct Console Input\n");
if (INT21_ReadChar( NULL, NULL ))
{
BYTE ascii;
INT21_ReadChar( &ascii, context );
SET_AL( context, ascii );
RESET_ZFLAG( context );
}
else
{
/* no character available */
SET_AL( context, 0 );
SET_ZFLAG( context );
}
}
else
{
TRACE("Direct Console Output\n");
DOSVM_PutChar(DL_reg(context));
/*
* At least DOS versions 2.1-7.0 return character
* that was written in AL register.
*/
SET_AL( context, DL_reg(context) );
}
break;
case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
{
BYTE ascii;
TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
INT21_ReadChar( &ascii, context );
SET_AL( context, ascii );
}
break;
case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
{
BYTE ascii;
TRACE("CHARACTER INPUT WITHOUT ECHO\n");
INT21_ReadChar( &ascii, context );
SET_AL( context, ascii );
}
break;
case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
context->SegDs, DX_reg(context) );
{
LPSTR data = CTX_SEG_OFF_TO_LIN( context,
context->SegDs, context->Edx );
LPSTR p = data;
/*
* Do NOT use strchr() to calculate the string length,
* as '\0' is valid string content, too!
* Maybe we should check for non-'$' strings, but DOS doesn't.
*/
while (*p != '$') p++;
if (DOSVM_IsWin16())
WriteFile( DosFileHandleToWin32Handle(1),
data, p - data, 0, 0 );
else
for(; data != p; data++)
DOSVM_PutChar( *data );
SET_AL( context, '$' ); /* yes, '$' (0x24) gets returned in AL */
}
break;
case 0x0a: /* BUFFERED INPUT */
{
BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx);
WORD result;
TRACE( "BUFFERED INPUT (size=%d)\n", ptr[0] );
/*
* FIXME: Some documents state that
* ptr[1] holds number of chars from last input which
* may be recalled on entry, other documents do not mention
* this at all.
*/
if (ptr[1])
TRACE( "Handle old chars in buffer!\n" );
/*
* ptr[0] - capacity (includes terminating CR)
* ptr[1] - characters read (excludes terminating CR)
*/
result = INT21_BufferedInput( context, ptr + 2, ptr[0] );
if (result > 0)
ptr[1] = (BYTE)result - 1;
else
ptr[1] = 0;
}
break;
case 0x0b: /* GET STDIN STATUS */
TRACE( "GET STDIN STATUS\n" );
{
if (INT21_ReadChar( NULL, NULL ))
SET_AL( context, 0xff ); /* character available */
else
SET_AL( context, 0 ); /* no character available */
}
break;
case 0x0c: /* FLUSH BUFFER AND READ STANDARD INPUT */
{
BYTE al = AL_reg(context); /* Input function to execute after flush. */
TRACE( "FLUSH BUFFER AND READ STANDARD INPUT - 0x%02x\n", al );
/* FIXME: buffers are not flushed */
/*
* If AL is one of 0x01, 0x06, 0x07, 0x08, or 0x0a,
* int21 function identified by AL will be called.
*/
if(al == 0x01 || al == 0x06 || al == 0x07 || al == 0x08 || al == 0x0a)
{
SET_AH( context, al );
DOSVM_Int21Handler( context );
}
}
break;
case 0x0d: /* DISK BUFFER FLUSH */
TRACE("DISK BUFFER FLUSH ignored\n");
break;
case 0x0e: /* SELECT DEFAULT DRIVE */
TRACE( "SELECT DEFAULT DRIVE - %c:\n", 'A' + DL_reg(context) );
INT21_SetCurrentDrive( DL_reg(context) );
SET_AL( context, MAX_DOS_DRIVES );
break;
case 0x0f: /* OPEN FILE USING FCB */
INT21_OpenFileUsingFCB( context );
break;
case 0x10: /* CLOSE FILE USING FCB */
INT21_CloseFileUsingFCB( context );
break;
case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
INT_Int21Handler( context );
break;
case 0x13: /* DELETE FILE USING FCB */
INT_BARF( context, 0x21 );
break;
case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
INT21_SequentialReadFromFCB( context );
break;
case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
INT21_SequentialWriteToFCB( context );
break;
case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
case 0x17: /* RENAME FILE USING FCB */
INT_BARF( context, 0x21 );
break;
case 0x18: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x19: /* GET CURRENT DEFAULT DRIVE */
SET_AL( context, INT21_GetCurrentDrive() );
TRACE( "GET CURRENT DRIVE -> %c:\n", 'A' + AL_reg( context ) );
break;
case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
TRACE( "SET DISK TRANSFER AREA ADDRESS %04lX:%04X\n",
context->SegDs, DX_reg(context) );
{
TDB *task = GlobalLock16( GetCurrentTask() );
task->dta = MAKESEGPTR( context->SegDs, DX_reg(context) );
}
break;
case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
INT_Int21Handler( context );
break;
case 0x1d: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
case 0x1e: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
INT_Int21Handler( context );
break;
case 0x20: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
INT21_ReadRandomRecordFromFCB( context );
break;
case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
INT21_WriteRandomRecordToFCB( context );
break;
case 0x23: /* GET FILE SIZE FOR FCB */
case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
INT_BARF( context, 0x21 );
break;
case 0x25: /* SET INTERRUPT VECTOR */
TRACE("SET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
{
FARPROC16 ptr = (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context) );
if (!ISV86(context) && DOSVM_IsWin16())
DOSVM_SetPMHandler16( AL_reg(context), ptr );
else
DOSVM_SetRMHandler( AL_reg(context), ptr );
}
break;
case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
INT_BARF( context, 0x21 );
break;
case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
INT21_RandomBlockReadFromFCB( context );
break;
case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
INT21_RandomBlockWriteToFCB( context );
break;
case 0x29: /* PARSE FILENAME INTO FCB */
INT_Int21Handler( context );
break;
case 0x2a: /* GET SYSTEM DATE */
TRACE( "GET SYSTEM DATE\n" );
{
SYSTEMTIME systime;
GetLocalTime( &systime );
SET_CX( context, systime.wYear );
SET_DH( context, systime.wMonth );
SET_DL( context, systime.wDay );
SET_AL( context, systime.wDayOfWeek );
}
break;
case 0x2b: /* SET SYSTEM DATE */
TRACE( "SET SYSTEM DATE\n" );
{
WORD year = CX_reg(context);
BYTE month = DH_reg(context);
BYTE day = DL_reg(context);
if (year >= 1980 && year <= 2099 &&
month >= 1 && month <= 12 &&
day >= 1 && day <= 31)
{
FIXME( "SetSystemDate(%02d/%02d/%04d): not allowed\n",
day, month, year );
SET_AL( context, 0 ); /* Let's pretend we succeeded */
}
else
{
SET_AL( context, 0xff ); /* invalid date */
}
}
break;
case 0x2c: /* GET SYSTEM TIME */
TRACE( "GET SYSTEM TIME\n" );
{
SYSTEMTIME systime;
GetLocalTime( &systime );
SET_CH( context, systime.wHour );
SET_CL( context, systime.wMinute );
SET_DH( context, systime.wSecond );
SET_DL( context, systime.wMilliseconds / 10 );
}
break;
case 0x2d: /* SET SYSTEM TIME */
FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
CH_reg(context), CL_reg(context),
DH_reg(context), DL_reg(context) );
SET_AL( context, 0 ); /* Let's pretend we succeeded */
break;
case 0x2e: /* SET VERIFY FLAG */
TRACE("SET VERIFY FLAG ignored\n");
/* we cannot change the behaviour anyway, so just ignore it */
break;
case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
TRACE( "GET DISK TRANSFER AREA ADDRESS\n" );
{
TDB *task = GlobalLock16( GetCurrentTask() );
context->SegEs = SELECTOROF( task->dta );
SET_BX( context, OFFSETOF( task->dta ) );
}
break;
case 0x30: /* GET DOS VERSION */
TRACE( "GET DOS VERSION - %s requested\n",
(AL_reg(context) == 0x00) ? "OEM number" : "version flag" );
if (AL_reg(context) == 0x00)
SET_BH( context, 0xff ); /* OEM number => undefined */
else
SET_BH( context, 0x08 ); /* version flag => DOS is in ROM */
SET_AL( context, HIBYTE(HIWORD(GetVersion16())) ); /* major version */
SET_AH( context, LOBYTE(HIWORD(GetVersion16())) ); /* minor version */
SET_BL( context, 0x12 ); /* 0x123456 is 24-bit Wine's serial # */
SET_CX( context, 0x3456 );
break;
case 0x31: /* TERMINATE AND STAY RESIDENT */
FIXME("TERMINATE AND STAY RESIDENT stub\n");
break;
case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
INT_Int21Handler( context );
break;
case 0x33: /* MULTIPLEXED */
switch (AL_reg(context))
{
case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
TRACE("GET CURRENT EXTENDED BREAK STATE\n");
SET_DL( context, DOSCONF_GetConfig()->brk_flag );
break;
case 0x01: /* SET EXTENDED BREAK STATE */
TRACE("SET CURRENT EXTENDED BREAK STATE\n");
DOSCONF_GetConfig()->brk_flag = (DL_reg(context) > 0) ? 1 : 0;
break;
case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
/* ugly coding in order to stay reentrant */
if (DL_reg(context))
{
SET_DL( context, DOSCONF_GetConfig()->brk_flag );
DOSCONF_GetConfig()->brk_flag = 1;
}
else
{
SET_DL( context, DOSCONF_GetConfig()->brk_flag );
DOSCONF_GetConfig()->brk_flag = 0;
}
break;
case 0x05: /* GET BOOT DRIVE */
TRACE("GET BOOT DRIVE\n");
SET_DL( context, 3 );
/* c: is Wine's bootdrive (a: is 1)*/
break;
case 0x06: /* GET TRUE VERSION NUMBER */
TRACE("GET TRUE VERSION NUMBER\n");
SET_BL( context, HIBYTE(HIWORD(GetVersion16())) ); /* major */
SET_BH( context, LOBYTE(HIWORD(GetVersion16())) ); /* minor */
SET_DL( context, 0x00 ); /* revision */
SET_DH( context, 0x08 ); /* DOS is in ROM */
break;
default:
INT_BARF( context, 0x21 );
break;
}
break;
case 0x34: /* GET ADDRESS OF INDOS FLAG */
TRACE( "GET ADDRESS OF INDOS FLAG\n" );
context->SegEs = INT21_GetHeapSelector( context );
SET_BX( context, offsetof(INT21_HEAP, misc_indos) );
break;
case 0x35: /* GET INTERRUPT VECTOR */
TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
{
FARPROC16 addr;
if (!ISV86(context) && DOSVM_IsWin16())
addr = DOSVM_GetPMHandler16( AL_reg(context) );
else
addr = DOSVM_GetRMHandler( AL_reg(context) );
context->SegEs = SELECTOROF(addr);
SET_BX( context, OFFSETOF(addr) );
}
break;
case 0x36: /* GET FREE DISK SPACE */
INT_Int21Handler( context );
break;
case 0x37: /* SWITCHAR */
{
switch (AL_reg(context))
{
case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
TRACE( "SWITCHAR - GET SWITCH CHARACTER\n" );
SET_AL( context, 0x00 ); /* success*/
SET_DL( context, '/' );
break;
case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
FIXME( "SWITCHAR - SET SWITCH CHARACTER: %c\n",
DL_reg( context ));
SET_AL( context, 0x00 ); /* success*/
break;
default:
INT_BARF( context, 0x21 );
break;
}
}
break;
case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
TRACE( "GET COUNTRY-SPECIFIC INFORMATION\n" );
if (AL_reg(context))
{
WORD country = AL_reg(context);
if (country == 0xff)
country = BX_reg(context);
if (country != INT21_GetSystemCountryCode())
FIXME( "Requested info on non-default country %04x\n", country );
}
INT21_FillCountryInformation( CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx) );
SET_AX( context, INT21_GetSystemCountryCode() );
SET_BX( context, INT21_GetSystemCountryCode() );
break;
case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
if (!INT21_CreateDirectory( context ))
bSetDOSExtendedError = TRUE;
break;
case 0x3a: /* "RMDIR" - REMOVE DIRECTORY */
{
WCHAR dirW[MAX_PATH];
char *dirA = CTX_SEG_OFF_TO_LIN(context,
context->SegDs, context->Edx);
TRACE( "REMOVE DIRECTORY %s\n", dirA );
MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
if (!RemoveDirectoryW( dirW ))
bSetDOSExtendedError = TRUE;
}
break;
case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
if (!INT21_SetCurrentDirectory( context ))
bSetDOSExtendedError = TRUE;
break;
case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
if (!INT21_CreateFile( context, context->Edx, FALSE,
OF_READWRITE | OF_SHARE_COMPAT, 0x12 ))
bSetDOSExtendedError = TRUE;
break;
case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
if (!INT21_CreateFile( context, context->Edx, FALSE,
AL_reg(context), 0x01 ))
bSetDOSExtendedError = TRUE;
break;
case 0x3e: /* "CLOSE" - CLOSE FILE */
TRACE( "CLOSE handle %d\n", BX_reg(context) );
if (_lclose16( BX_reg(context) ) == HFILE_ERROR16)
bSetDOSExtendedError = TRUE;
break;
case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
TRACE( "READ from %d to %04lX:%04X for %d bytes\n",
BX_reg(context),
context->SegDs,
DX_reg(context),
CX_reg(context) );
{
DWORD result;
WORD count = CX_reg(context);
BYTE *buffer = CTX_SEG_OFF_TO_LIN( context,
context->SegDs,
context->Edx );
/* Some programs pass a count larger than the allocated buffer */
if (DOSVM_IsWin16())
{
WORD maxcount = GetSelectorLimit16( context->SegDs )
- DX_reg(context) + 1;
if (count > maxcount)
count = maxcount;
}
/*
* FIXME: Reading from console (BX=1) in DOS mode
* does not work as it is supposed to work.
*/
if (!DOSVM_IsWin16() && BX_reg(context) == 0)
{
result = INT21_BufferedInput( context, buffer, count );
SET_AX( context, (WORD)result );
}
else if (ReadFile( DosFileHandleToWin32Handle(BX_reg(context)),
buffer, count, &result, NULL ))
SET_AX( context, (WORD)result );
else
bSetDOSExtendedError = TRUE;
}
break;
case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
TRACE( "WRITE from %04lX:%04X to handle %d for %d byte\n",
context->SegDs, DX_reg(context),
BX_reg(context), CX_reg(context) );
{
BYTE *ptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
if (!DOSVM_IsWin16() &&
(BX_reg(context) == 1 || BX_reg(context) == 2))
{
int i;
for(i=0; i<CX_reg(context); i++)
DOSVM_PutChar(ptr[i]);
SET_AX(context, CX_reg(context));
}
else
{
HFILE handle = (HFILE)DosFileHandleToWin32Handle(BX_reg(context));
LONG result = _hwrite( handle, ptr, CX_reg(context) );
if (result == HFILE_ERROR)
bSetDOSExtendedError = TRUE;
else
SET_AX( context, (WORD)result );
}
}
break;
case 0x41: /* "UNLINK" - DELETE FILE */
{
WCHAR fileW[MAX_PATH];
char *fileA = CTX_SEG_OFF_TO_LIN(context,
context->SegDs,
context->Edx);
TRACE( "UNLINK %s\n", fileA );
MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
if (!DeleteFileW( fileW ))
bSetDOSExtendedError = TRUE;
}
break;
case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
TRACE( "LSEEK handle %d offset %ld from %s\n",
BX_reg(context),
MAKELONG( DX_reg(context), CX_reg(context) ),
(AL_reg(context) == 0) ?
"start of file" : ((AL_reg(context) == 1) ?
"current file position" : "end of file") );
{
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
LONG offset = MAKELONG( DX_reg(context), CX_reg(context) );
DWORD status = SetFilePointer( handle, offset,
NULL, AL_reg(context) );
if (status == INVALID_SET_FILE_POINTER)
bSetDOSExtendedError = TRUE;
else
{
SET_AX( context, LOWORD(status) );
SET_DX( context, HIWORD(status) );
}
}
break;
case 0x43: /* FILE ATTRIBUTES */
if (!INT21_FileAttributes( context, AL_reg(context), FALSE ))
bSetDOSExtendedError = TRUE;
break;
case 0x44: /* IOCTL */
INT21_Ioctl( context );
break;
case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
TRACE( "DUPLICATE FILE HANDLE %d\n", BX_reg(context) );
{
HANDLE handle32;
HFILE handle16 = HFILE_ERROR;
if (DuplicateHandle( GetCurrentProcess(),
DosFileHandleToWin32Handle(BX_reg(context)),
GetCurrentProcess(),
&handle32,
0, TRUE, DUPLICATE_SAME_ACCESS ))
handle16 = Win32HandleToDosFileHandle(handle32);
if (handle16 == HFILE_ERROR)
bSetDOSExtendedError = TRUE;
else
SET_AX( context, handle16 );
}
break;
case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
TRACE( "FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
BX_reg(context), CX_reg(context) );
if (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16)
bSetDOSExtendedError = TRUE;
break;
case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
if (!INT21_GetCurrentDirectory( context, FALSE ))
bSetDOSExtendedError = TRUE;
break;
case 0x48: /* ALLOCATE MEMORY */
TRACE( "ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context) );
{
WORD selector = 0;
DWORD bytes = (DWORD)BX_reg(context) << 4;
if (!ISV86(context) && DOSVM_IsWin16())
{
DWORD rv = GlobalDOSAlloc16( bytes );
selector = LOWORD( rv );
}
else
DOSMEM_GetBlock( bytes, &selector );
if (selector)
SET_AX( context, selector );
else
{
SET_CFLAG(context);
SET_AX( context, 0x0008 ); /* insufficient memory */
SET_BX( context, DOSMEM_Available() >> 4 );
}
}
break;
case 0x49: /* FREE MEMORY */
TRACE( "FREE MEMORY segment %04lX\n", context->SegEs );
{
BOOL ok;
if (!ISV86(context) && DOSVM_IsWin16())
{
ok = !GlobalDOSFree16( context->SegEs );
/* If we don't reset ES_reg, we will fail in the relay code */
if (ok)
context->SegEs = 0;
}
else
ok = DOSMEM_FreeBlock( (void*)((DWORD)context->SegEs << 4) );
if (!ok)
{
TRACE("FREE MEMORY failed\n");
SET_CFLAG(context);
SET_AX( context, 0x0009 ); /* memory block address invalid */
}
}
break;
case 0x4a: /* RESIZE MEMORY BLOCK */
TRACE( "RESIZE MEMORY segment %04lX to %d paragraphs\n",
context->SegEs, BX_reg(context) );
{
DWORD newsize = (DWORD)BX_reg(context) << 4;
if (!ISV86(context) && DOSVM_IsWin16())
{
FIXME( "Resize memory block - unsupported under Win16\n" );
}
else
{
LPVOID address = (void*)((DWORD)context->SegEs << 4);
UINT blocksize = DOSMEM_ResizeBlock( address, newsize, FALSE );
if (blocksize == (UINT)-1)
{
SET_CFLAG( context );
SET_AX( context, 0x0009 ); /* illegal address */
}
else if(blocksize != newsize)
{
SET_CFLAG( context );
SET_AX( context, 0x0008 ); /* insufficient memory */
SET_BX( context, blocksize >> 4 ); /* new block size */
}
}
}
break;
case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
{
BYTE *program = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
BYTE *paramblk = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
TRACE( "EXEC %s\n", program );
if (DOSVM_IsWin16())
{
HINSTANCE16 instance = WinExec16( program, SW_NORMAL );
if (instance < 32)
{
SET_CFLAG( context );
SET_AX( context, instance );
}
}
else
{
if (!MZ_Exec( context, program, AL_reg(context), paramblk))
bSetDOSExtendedError = TRUE;
}
}
break;
case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
TRACE( "EXIT with return code %d\n", AL_reg(context) );
if (DOSVM_IsWin16())
ExitThread( AL_reg(context) );
else
MZ_Exit( context, FALSE, AL_reg(context) );
break;
case 0x4d: /* GET RETURN CODE */
TRACE("GET RETURN CODE (ERRORLEVEL)\n");
SET_AX( context, DOSVM_retval );
DOSVM_retval = 0;
break;
case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
INT_Int21Handler( context );
break;
case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
DOSVM_psp = BX_reg(context);
break;
case 0x51: /* GET PSP ADDRESS */
INT21_GetPSP( context );
break;
case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
if (!ISV86(context) && DOSVM_IsWin16())
{
SEGPTR ptr = DOSMEM_LOL()->wine_pm_lol;
context->SegEs = SELECTOROF(ptr);
SET_BX( context, OFFSETOF(ptr) );
}
else
{
SEGPTR ptr = DOSMEM_LOL()->wine_rm_lol;
context->SegEs = SELECTOROF(ptr);
SET_BX( context, OFFSETOF(ptr) );
}
break;
case 0x54: /* Get Verify Flag */
TRACE("Get Verify Flag - Not Supported\n");
SET_AL( context, 0x00 ); /* pretend we can tell. 00h = off 01h = on */
break;
case 0x56: /* "RENAME" - RENAME FILE */
if (!INT21_RenameFile( context ))
bSetDOSExtendedError = TRUE;
break;
case 0x57: /* FILE DATE AND TIME */
if (!INT21_FileDateTime( context ))
bSetDOSExtendedError = TRUE;
break;
case 0x58: /* GET OR SET MEMORY ALLOCATION STRATEGY */
switch (AL_reg(context))
{
case 0x00: /* GET MEMORY ALLOCATION STRATEGY */
TRACE( "GET MEMORY ALLOCATION STRATEGY\n" );
SET_AX( context, 0 ); /* low memory first fit */
break;
case 0x01: /* SET ALLOCATION STRATEGY */
TRACE( "SET MEMORY ALLOCATION STRATEGY to %d - ignored\n",
BL_reg(context) );
break;
case 0x02: /* GET UMB LINK STATE */
TRACE( "GET UMB LINK STATE\n" );
SET_AL( context, 0 ); /* UMBs not part of DOS memory chain */
break;
case 0x03: /* SET UMB LINK STATE */
TRACE( "SET UMB LINK STATE to %d - ignored\n",
BX_reg(context) );
break;
default:
INT_BARF( context, 0x21 );
}
break;
case 0x59: /* GET EXTENDED ERROR INFO */
INT21_GetExtendedError( context );
break;
case 0x5a: /* CREATE TEMPORARY FILE */
INT_Int21Handler( context );
break;
case 0x5b: /* CREATE NEW FILE */
if (!INT21_CreateFile( context, context->Edx, FALSE,
OF_READWRITE | OF_SHARE_COMPAT, 0x10 ))
bSetDOSExtendedError = TRUE;
break;
case 0x5c: /* "FLOCK" - RECORD LOCKING */
{
DWORD offset = MAKELONG(DX_reg(context), CX_reg(context));
DWORD length = MAKELONG(DI_reg(context), SI_reg(context));
HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
switch (AL_reg(context))
{
case 0x00: /* LOCK */
TRACE( "lock handle %d offset %ld length %ld\n",
BX_reg(context), offset, length );
if (!LockFile( handle, offset, 0, length, 0 ))
bSetDOSExtendedError = TRUE;
break;
case 0x01: /* UNLOCK */
TRACE( "unlock handle %d offset %ld length %ld\n",
BX_reg(context), offset, length );
if (!UnlockFile( handle, offset, 0, length, 0 ))
bSetDOSExtendedError = TRUE;
break;
default:
INT_BARF( context, 0x21 );
}
}
break;
case 0x5d: /* NETWORK 5D */
FIXME( "Network function 5D not implemented.\n" );
SetLastError( ER_NoNetwork );
bSetDOSExtendedError = TRUE;
break;
case 0x5e: /* NETWORK 5E */
case 0x5f: /* NETWORK 5F */
case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
INT_Int21Handler( context );
break;
case 0x61: /* UNUSED */
SET_AL( context, 0 );
break;
case 0x62: /* GET PSP ADDRESS */
INT21_GetPSP( context );
break;
case 0x63: /* MISC. LANGUAGE SUPPORT */
switch (AL_reg(context)) {
case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
TRACE( "GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE\n" );
context->SegDs = INT21_GetHeapSelector( context );
SET_SI( context, offsetof(INT21_HEAP, dbcs_table) );
SET_AL( context, 0 ); /* success */
break;
}
break;
case 0x64: /* OS/2 DOS BOX */
INT_BARF( context, 0x21 );
SET_CFLAG(context);
break;
case 0x65: /* EXTENDED COUNTRY INFORMATION */
INT21_ExtendedCountryInformation( context );
break;
case 0x66: /* GLOBAL CODE PAGE TABLE */
switch (AL_reg(context))
{
case 0x01:
TRACE( "GET GLOBAL CODE PAGE TABLE\n" );
SET_BX( context, GetOEMCP() );
SET_DX( context, GetOEMCP() );
break;
case 0x02:
FIXME( "SET GLOBAL CODE PAGE TABLE, active %d, system %d - ignored\n",
BX_reg(context), DX_reg(context) );
break;
}
break;
case 0x67: /* SET HANDLE COUNT */
TRACE( "SET HANDLE COUNT to %d\n", BX_reg(context) );
if (SetHandleCount( BX_reg(context) ) < BX_reg(context) )
bSetDOSExtendedError = TRUE;
break;
case 0x68: /* "FFLUSH" - COMMIT FILE */
TRACE( "FFLUSH - handle %d\n", BX_reg(context) );
if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
bSetDOSExtendedError = TRUE;
break;
case 0x69: /* DISK SERIAL NUMBER */
INT_Int21Handler( context );
break;
case 0x6a: /* COMMIT FILE */
TRACE( "COMMIT FILE - handle %d\n", BX_reg(context) );
if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
bSetDOSExtendedError = TRUE;
break;
case 0x6b: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
SET_AL( context, 0 );
break;
case 0x6c: /* EXTENDED OPEN/CREATE */
if (!INT21_CreateFile( context, context->Esi, TRUE,
BX_reg(context), DL_reg(context) ))
bSetDOSExtendedError = TRUE;
break;
case 0x70: /* MSDOS 7 - GET/SET INTERNATIONALIZATION INFORMATION */
FIXME( "MS-DOS 7 - GET/SET INTERNATIONALIZATION INFORMATION\n" );
SET_CFLAG( context );
SET_AL( context, 0 );
break;
case 0x71: /* MSDOS 7 - LONG FILENAME FUNCTIONS */
INT21_LongFilename( context );
break;
case 0x73: /* MSDOS7 - FAT32 */
INT_Int21Handler( context );
break;
case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
TRACE( "CONNECTION SERVICES - GET CONNECTION NUMBER - ignored\n" );
break;
case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
TRACE( "NOVELL NETWARE - RETURN SHELL VERSION - ignored\n" );
break;
default:
INT_BARF( context, 0x21 );
break;
} /* END OF SWITCH */
/* Set general error condition. */
if (bSetDOSExtendedError)
{
SET_AX( context, GetLastError() );
SET_CFLAG( context );
}
/* Print error code if carry flag is set. */
if (context->EFlags & 0x0001)
TRACE("failed, error %ld\n", GetLastError() );
TRACE( "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
"SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
AX_reg(context), BX_reg(context),
CX_reg(context), DX_reg(context),
SI_reg(context), DI_reg(context),
(WORD)context->SegDs, (WORD)context->SegEs,
context->EFlags );
}
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