mirror of
git://source.winehq.org/git/wine.git
synced 2024-09-01 00:03:38 +00:00
Migrate create/open file functions to winedos.
Some fixes based on patch by Ferenc Wagner.
This commit is contained in:
parent
0b79a6e7c3
commit
e827269a99
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@ -518,6 +518,209 @@ static BOOL INT21_SetCurrentDirectory( CONTEXT86 *context )
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}
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/***********************************************************************
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* INT21_CreateFile
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*
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* Handler for:
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* - function 0x3c
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* - function 0x3d
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* - function 0x5b
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* - function 0x6c
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* - subfunction 0x6c of function 0x71
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*/
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static BOOL INT21_CreateFile( CONTEXT86 *context,
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DWORD pathSegOff,
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BOOL returnStatus,
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WORD dosAccessShare,
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BYTE dosAction )
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{
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WORD dosStatus;
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char *pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, pathSegOff);
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WCHAR pathW[MAX_PATH];
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DWORD winAccess;
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DWORD winAttributes;
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HANDLE winHandle;
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DWORD winMode;
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DWORD winSharing;
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TRACE( "CreateFile called: function=%02x, action=%02x, access/share=%04x, "
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"create flags=%04x, file=%s.\n",
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AH_reg(context), dosAction, dosAccessShare, CX_reg(context), pathA );
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/*
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* Application tried to create/open a file whose name
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* ends with a backslash. This is not allowed.
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*
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* FIXME: This needs to be validated, especially the return value.
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*/
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if (pathA[strlen(pathA) - 1] == '/')
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{
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SetLastError( ERROR_FILE_NOT_FOUND );
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return FALSE;
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}
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/*
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* Convert DOS action flags into Win32 creation disposition parameter.
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*/
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switch(dosAction)
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{
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case 0x01:
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winMode = OPEN_EXISTING;
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break;
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case 0x02:
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winMode = TRUNCATE_EXISTING;
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break;
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case 0x10:
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winMode = CREATE_NEW;
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break;
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case 0x11:
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winMode = OPEN_ALWAYS;
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break;
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case 0x12:
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winMode = CREATE_ALWAYS;
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break;
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default:
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SetLastError( ERROR_INVALID_PARAMETER );
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return FALSE;
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}
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/*
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* Convert DOS access/share flags into Win32 desired access parameter.
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*/
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switch(dosAccessShare & 0x07)
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{
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case OF_READ:
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winAccess = GENERIC_READ;
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break;
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case OF_WRITE:
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winAccess = GENERIC_WRITE;
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break;
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case OF_READWRITE:
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winAccess = GENERIC_READ | GENERIC_WRITE;
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break;
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case 0x04:
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/*
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* Read-only, do not modify file's last-access time (DOS7).
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*
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* FIXME: How to prevent modification of last-access time?
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*/
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winAccess = GENERIC_READ;
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break;
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default:
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winAccess = 0;
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}
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/*
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* Convert DOS access/share flags into Win32 share mode parameter.
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*/
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switch(dosAccessShare & 0x70)
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{
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case OF_SHARE_EXCLUSIVE:
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winSharing = 0;
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break;
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case OF_SHARE_DENY_WRITE:
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winSharing = FILE_SHARE_READ;
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break;
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case OF_SHARE_DENY_READ:
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winSharing = FILE_SHARE_WRITE;
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break;
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case OF_SHARE_DENY_NONE:
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case OF_SHARE_COMPAT:
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default:
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winSharing = FILE_SHARE_READ | FILE_SHARE_WRITE;
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}
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/*
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* FIXME: Bit (dosAccessShare & 0x80) represents inheritance.
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* What to do with this bit?
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* FIXME: Bits in the high byte of dosAccessShare are not supported.
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* See both function 0x6c and subfunction 0x6c of function 0x71 for
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* definition of these bits.
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*/
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/*
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* Convert DOS create attributes into Win32 flags and attributes parameter.
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*/
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if (winMode == OPEN_EXISTING || winMode == TRUNCATE_EXISTING)
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{
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winAttributes = 0;
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}
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else
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{
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WORD dosAttributes = CX_reg(context);
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if (dosAttributes & FILE_ATTRIBUTE_LABEL)
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{
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/*
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* Application tried to create volume label entry.
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* This is difficult to support so we do not allow it.
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*
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* FIXME: If volume does not already have a label,
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* this function is supposed to succeed.
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*/
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SetLastError( ERROR_ACCESS_DENIED );
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return TRUE;
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}
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winAttributes = dosAttributes &
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(FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN |
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FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_ARCHIVE);
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}
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/*
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* Open the file.
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*/
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MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
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winHandle = CreateFileW( pathW, winAccess, winSharing, NULL,
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winMode, winAttributes, 0 );
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if (winHandle == INVALID_HANDLE_VALUE)
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return FALSE;
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/*
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* Determine DOS file status.
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*
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* 1 = file opened
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* 2 = file created
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* 3 = file replaced
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*/
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switch(winMode)
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{
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case OPEN_EXISTING:
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dosStatus = 1;
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break;
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case TRUNCATE_EXISTING:
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dosStatus = 3;
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break;
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case CREATE_NEW:
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dosStatus = 2;
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break;
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case OPEN_ALWAYS:
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dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 1 : 2;
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break;
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case CREATE_ALWAYS:
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dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 3 : 2;
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break;
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default:
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dosStatus = 0;
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}
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/*
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* Return DOS file handle and DOS status.
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*/
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SET_AX( context, Win32HandleToDosFileHandle(winHandle) );
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if (returnStatus)
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SET_CX( context, dosStatus );
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TRACE( "CreateFile finished: handle=%d, status=%d.\n",
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AX_reg(context), dosStatus );
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return TRUE;
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}
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/***********************************************************************
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* INT21_BufferedInput
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*
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@ -2156,7 +2359,15 @@ static void INT21_LongFilename( CONTEXT86 *context )
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break;
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case 0x60: /* LONG FILENAME - CONVERT PATH */
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INT_Int21Handler( context );
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break;
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case 0x6c: /* LONG FILENAME - CREATE OR OPEN FILE */
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if (!INT21_CreateFile( context, context->Esi, TRUE,
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BX_reg(context), DL_reg(context) ))
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bSetDOSExtendedError = TRUE;
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break;
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case 0xa0: /* LONG FILENAME - GET VOLUME INFORMATION */
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case 0xa1: /* LONG FILENAME - "FindClose" - TERMINATE DIRECTORY SEARCH */
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INT_Int21Handler( context );
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@ -2917,8 +3128,15 @@ void WINAPI DOSVM_Int21Handler( CONTEXT86 *context )
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break;
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case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
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if (!INT21_CreateFile( context, context->Edx, FALSE,
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OF_READWRITE | OF_SHARE_COMPAT, 0x12 ))
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bSetDOSExtendedError = TRUE;
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break;
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case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
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INT_Int21Handler( context );
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if (!INT21_CreateFile( context, context->Edx, FALSE,
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AL_reg(context), 0x01 ))
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bSetDOSExtendedError = TRUE;
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break;
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case 0x3e: /* "CLOSE" - CLOSE FILE */
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@ -3267,10 +3485,15 @@ void WINAPI DOSVM_Int21Handler( CONTEXT86 *context )
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break;
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case 0x5a: /* CREATE TEMPORARY FILE */
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case 0x5b: /* CREATE NEW FILE */
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INT_Int21Handler( context );
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break;
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case 0x5b: /* CREATE NEW FILE */
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if (!INT21_CreateFile( context, context->Edx, FALSE,
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OF_READWRITE | OF_SHARE_COMPAT, 0x10 ))
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bSetDOSExtendedError = TRUE;
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break;
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case 0x5c: /* "FLOCK" - RECORD LOCKING */
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{
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DWORD offset = MAKELONG(DX_reg(context), CX_reg(context));
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@ -3381,7 +3604,9 @@ void WINAPI DOSVM_Int21Handler( CONTEXT86 *context )
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break;
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case 0x6c: /* EXTENDED OPEN/CREATE */
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INT_Int21Handler( context );
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if (!INT21_CreateFile( context, context->Esi, TRUE,
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BX_reg(context), DL_reg(context) ))
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bSetDOSExtendedError = TRUE;
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break;
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case 0x70: /* MSDOS 7 - GET/SET INTERNATIONALIZATION INFORMATION */
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143
msdos/int21.c
143
msdos/int21.c
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@ -411,12 +411,6 @@ char *INT21_DriveName(int drive)
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}
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return drivestring;
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}
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static BOOL INT21_CreateFile( CONTEXT86 *context )
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{
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SET_AX( context, _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
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context->Edx ), CX_reg(context) ) );
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return (AX_reg(context) == (WORD)HFILE_ERROR16);
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}
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static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
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{
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@ -427,110 +421,6 @@ static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
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CREATE_NEW, attr, 0 ));
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}
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static void OpenExistingFile( CONTEXT86 *context )
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{
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SET_AX( context, _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
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AL_reg(context) ));
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if (AX_reg(context) == (WORD)HFILE_ERROR16)
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{
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SET_AX( context, GetLastError() );
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SET_CFLAG(context);
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}
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}
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static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
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{
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BOOL bExtendedError = FALSE;
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BYTE action = DL_reg(context);
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/* Shuffle arguments to call OpenExistingFile */
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SET_AL( context, BL_reg(context) );
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SET_DX( context, SI_reg(context) );
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/* BX,CX and DX should be preserved */
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OpenExistingFile(context);
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if ((context->EFlags & 0x0001) == 0) /* File exists */
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{
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UINT16 uReturnCX = 0;
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/* Now decide what do do */
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if ((action & 0x07) == 0)
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{
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_lclose16( AX_reg(context) );
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SET_AX( context, 0x0050 ); /*File exists*/
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SET_CFLAG(context);
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WARN("extended open/create: failed because file exists \n");
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}
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else if ((action & 0x07) == 2)
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{
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/* Truncate it, but first check if opened for write */
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if ((BL_reg(context) & 0x0007)== 0)
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{
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_lclose16( AX_reg(context) );
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WARN("extended open/create: failed, trunc on ro file\n");
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SET_AX( context, 0x000C ); /*Access code invalid*/
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SET_CFLAG(context);
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}
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else
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{
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TRACE("extended open/create: Closing before truncate\n");
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if (_lclose16( AX_reg(context) ))
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{
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WARN("extended open/create: close before trunc failed\n");
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SET_AX( context, 0x0019 ); /*Seek Error*/
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SET_CX( context, 0 );
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SET_CFLAG(context);
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}
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/* Shuffle arguments to call CreateFile */
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TRACE("extended open/create: Truncating\n");
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SET_AL( context, BL_reg(context) );
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/* CX is still the same */
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SET_DX( context, SI_reg(context) );
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bExtendedError = INT21_CreateFile(context);
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if (context->EFlags & 0x0001) /*no file open, flags set */
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{
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WARN("extended open/create: trunc failed\n");
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return bExtendedError;
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}
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uReturnCX = 0x3;
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}
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}
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else uReturnCX = 0x1;
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SET_CX( context, uReturnCX );
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}
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else /* file does not exist */
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{
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RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
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if ((action & 0xF0)== 0)
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{
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SET_CX( context, 0 );
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SET_CFLAG(context);
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WARN("extended open/create: failed, file dosen't exist\n");
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}
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else
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{
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/* Shuffle arguments to call CreateFile */
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TRACE("extended open/create: Creating\n");
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SET_AL( context, BL_reg(context) );
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/* CX should still be the same */
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SET_DX( context, SI_reg(context) );
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bExtendedError = INT21_CreateFile(context);
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if (context->EFlags & 0x0001) /*no file open, flags set */
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{
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WARN("extended open/create: create failed\n");
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return bExtendedError;
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}
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SET_CX( context, 2 );
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}
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}
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return bExtendedError;
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}
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static int INT21_FindFirst( CONTEXT86 *context )
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{
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@ -858,18 +748,6 @@ void WINAPI INT_Int21Handler( CONTEXT86 *context )
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if (!INT21_GetFreeDiskSpace(context)) SET_AX( context, 0xffff );
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break;
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case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
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TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
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(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
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bSetDOSExtendedError = INT21_CreateFile( context );
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break;
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case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
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TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
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(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
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OpenExistingFile(context);
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break;
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case 0x44: /* IOCTL */
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switch (AL_reg(context))
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{
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@ -917,15 +795,6 @@ void WINAPI INT_Int21Handler( CONTEXT86 *context )
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bSetDOSExtendedError = !INT21_CreateTempFile(context);
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break;
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case 0x5b: /* CREATE NEW FILE */
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TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
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(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
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SET_AX( context,
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_lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
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CX_reg(context) ));
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bSetDOSExtendedError = (AX_reg(context) != 0);
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break;
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case 0x5e:
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bSetDOSExtendedError = INT21_networkfunc (context);
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break;
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@ -992,12 +861,6 @@ void WINAPI INT_Int21Handler( CONTEXT86 *context )
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}
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break;
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case 0x6C: /* Extended Open/Create*/
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TRACE("EXTENDED OPEN/CREATE %s\n",
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(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
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bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
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break;
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case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
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switch(AL_reg(context))
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{
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@ -1074,12 +937,6 @@ void WINAPI INT_Int21Handler( CONTEXT86 *context )
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break;
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}
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break;
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case 0x6c: /* Create or open file */
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TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
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(LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
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/* translate Dos 7 action to Dos 6 action */
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bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
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break;
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default:
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FIXME("Unimplemented long file name function:\n");
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