2 * DOS interrupt 21h handler
4 * Copyright 1993, 1994 Erik Bos
5 * Copyright 1996 Alexandre Julliard
6 * Copyright 1997 Andreas Mohr
7 * Copyright 1998 Uwe Bonnes
8 * Copyright 1998, 1999 Ove Kaaven
9 * Copyright 2003 Thomas Mertes
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "wine/port.h"
31 #ifdef HAVE_SYS_STAT_H
32 # include <sys/stat.h>
42 #include "wine/winbase16.h"
46 #include "wine/unicode.h"
47 #include "wine/server.h"
48 #include "wine/debug.h"
49 #include "wine/exception.h"
51 BOOL WINAPI VerifyConsoleIoHandle(HANDLE);
54 * - Most of the file related functions are wrong. NT's kernel32
55 * doesn't maintain a per drive current directory, while DOS does.
56 * We should in fact keep track in here of those per drive
57 * directories, and use this info while dealing with partial paths
58 * (drive defined, but only relative paths). This could even be
59 * created as an array of CDS (there should be an entry for that in
64 * Forward declarations.
66 static BOOL INT21_RenameFile( CONTEXT86 *context );
68 WINE_DEFAULT_DEBUG_CHANNEL(int21);
74 * Extended Drive Parameter Block.
75 * This structure is compatible with standard DOS4+ DPB and
78 typedef struct _INT21_DPB {
79 BYTE drive; /* 00 drive number (0=A, ...) */
80 BYTE unit; /* 01 unit number within device driver */
81 WORD sector_bytes; /* 02 bytes per sector */
82 BYTE cluster_sectors; /* 04 highest sector number within a cluster */
83 BYTE shift; /* 05 shift count to convert clusters into sectors */
84 WORD num_reserved; /* 06 reserved sectors at beginning of drive */
85 BYTE num_FAT; /* 08 number of FATs */
86 WORD num_root_entries; /* 09 number of root directory entries */
87 WORD first_data_sector; /* 0b number of first sector containing user data */
88 WORD num_clusters1; /* 0d highest cluster number (number of data clusters + 1) */
89 WORD sectors_per_FAT; /* 0f number of sectors per FAT */
90 WORD first_dir_sector; /* 11 sector number of first directory sector */
91 SEGPTR driver_header; /* 13 address of device driver header */
92 BYTE media_ID; /* 17 media ID byte */
93 BYTE access_flag; /* 18 0x00 if disk accessed, 0xff if not */
94 SEGPTR next; /* 19 pointer to next DPB */
95 WORD search_cluster1; /* 1d cluster at which to start search for free space */
96 WORD free_clusters_lo; /* 1f number of free clusters on drive or 0xffff if unknown */
97 WORD free_clusters_hi; /* 21 hiword of clusters_free */
98 WORD mirroring_flags; /* 23 active FAT/mirroring flags */
99 WORD info_sector; /* 25 sector number of file system info sector or 0xffff for none */
100 WORD spare_boot_sector; /* 27 sector number of backup boot sector or 0xffff for none */
101 DWORD first_cluster_sector; /* 29 sector number of the first cluster */
102 DWORD num_clusters2; /* 2d maximum cluster number */
103 DWORD fat_clusters; /* 31 number of clusters occupied by FAT */
104 DWORD root_cluster; /* 35 cluster number of start of root directory */
105 DWORD search_cluster2; /* 39 cluster at which to start searching for free space */
110 * Structure for DOS data that can be accessed directly from applications.
111 * Real and protected mode pointers will be returned to this structure so
112 * the structure must be correctly packed.
114 typedef struct _INT21_HEAP {
115 WORD uppercase_size; /* Size of the following table in bytes */
116 BYTE uppercase_table[128]; /* Uppercase equivalents of chars from 0x80 to 0xff. */
118 WORD lowercase_size; /* Size of the following table in bytes */
119 BYTE lowercase_table[256]; /* Lowercase equivalents of chars from 0x00 to 0xff. */
121 WORD collating_size; /* Size of the following table in bytes */
122 BYTE collating_table[256]; /* Values used to sort characters from 0x00 to 0xff. */
124 WORD filename_size; /* Size of the following filename data in bytes */
125 BYTE filename_reserved1; /* 0x01 for MS-DOS 3.30-6.00 */
126 BYTE filename_lowest; /* Lowest permissible character value for filename */
127 BYTE filename_highest; /* Highest permissible character value for filename */
128 BYTE filename_reserved2; /* 0x00 for MS-DOS 3.30-6.00 */
129 BYTE filename_exclude_first; /* First illegal character in permissible range */
130 BYTE filename_exclude_last; /* Last illegal character in permissible range */
131 BYTE filename_reserved3; /* 0x02 for MS-DOS 3.30-6.00 */
132 BYTE filename_illegal_size; /* Number of terminators in the following table */
133 BYTE filename_illegal_table[16]; /* Characters which terminate a filename */
135 WORD dbcs_size; /* Number of valid ranges in the following table */
136 BYTE dbcs_table[16]; /* Start/end bytes for N ranges and 00/00 as terminator */
138 BYTE misc_indos; /* Interrupt 21 nesting flag */
139 WORD misc_segment; /* Real mode segment for INT21_HEAP */
140 WORD misc_selector; /* Protected mode selector for INT21_HEAP */
141 INT21_DPB misc_dpb_list[MAX_DOS_DRIVES]; /* Drive parameter blocks for all drives */
149 CHAR file_extension[3];
150 WORD current_block_number;
151 WORD logical_record_size;
153 WORD date_of_last_write;
154 WORD time_of_last_write;
157 WORD starting_cluster;
158 WORD sequence_number;
159 BYTE file_attributes;
161 BYTE record_within_current_block;
162 BYTE random_access_record_number[4];
169 BYTE xfcb_file_attribute;
173 /* DTA layout for FindFirst/FindNext */
176 BYTE drive; /* 00 drive letter */
177 char mask[11]; /* 01 search template */
178 BYTE search_attr; /* 0c search attributes */
179 WORD count; /* 0d entry count within directory */
180 WORD cluster; /* 0f cluster of parent directory */
181 WCHAR *fullPath; /* 11 full path (was: reserved) */
182 BYTE fileattr; /* 15 file attributes */
183 WORD filetime; /* 16 file time */
184 WORD filedate; /* 18 file date */
185 DWORD filesize; /* 1a file size */
186 char filename[13]; /* 1e file name + extension */
189 /* FCB layout for FindFirstFCB/FindNextFCB */
192 BYTE drive; /* 00 drive letter */
193 char filename[11]; /* 01 filename 8+3 format */
194 int count; /* 0c entry count (was: reserved) */
195 WCHAR *fullPath; /* 10 full path (was: reserved) */
198 /* DOS directory entry for FindFirstFCB/FindNextFCB */
201 char filename[11]; /* 00 filename 8+3 format */
202 BYTE fileattr; /* 0b file attributes */
203 BYTE reserved[10]; /* 0c reserved */
204 WORD filetime; /* 16 file time */
205 WORD filedate; /* 18 file date */
206 WORD cluster; /* 1a file first cluster */
207 DWORD filesize; /* 1c file size */
208 } DOS_DIRENTRY_LAYOUT;
212 /* dos file attributes */
213 #define FA_NORMAL 0x00 /* Normal file, no attributes */
214 #define FA_RDONLY 0x01 /* Read only attribute */
215 #define FA_HIDDEN 0x02 /* Hidden file */
216 #define FA_SYSTEM 0x04 /* System file */
217 #define FA_LABEL 0x08 /* Volume label */
218 #define FA_DIRECTORY 0x10 /* Directory */
219 #define FA_ARCHIVE 0x20 /* Archive */
220 #define FA_UNUSED 0x40 /* Unused */
223 #define ER_NoNetwork 0x49
226 #define EC_OutOfResource 0x01
227 #define EC_Temporary 0x02
228 #define EC_AccessDenied 0x03
229 #define EC_InternalError 0x04
230 #define EC_HardwareFailure 0x05
231 #define EC_SystemFailure 0x06
232 #define EC_ProgramError 0x07
233 #define EC_NotFound 0x08
234 #define EC_MediaError 0x0b
235 #define EC_Exists 0x0c
236 #define EC_Unknown 0x0d
238 /* Suggested actions */
239 #define SA_Retry 0x01
240 #define SA_DelayedRetry 0x02
241 #define SA_Abort 0x04
242 #define SA_Ignore 0x06
243 #define SA_Ask4Retry 0x07
246 #define EL_Unknown 0x01
248 #define EL_Network 0x03
249 #define EL_Serial 0x04
250 #define EL_Memory 0x05
252 /* BIOS Keyboard Scancodes */
253 #define KEY_LEFT 0x4B
254 #define KEY_RIGHT 0x4D
256 #define KEY_DOWN 0x50
257 #define KEY_IC 0x52 /* insert char */
258 #define KEY_DC 0x53 /* delete char */
259 #define KEY_BACKSPACE 0x0E
260 #define KEY_HOME 0x47
262 #define KEY_NPAGE 0x49
263 #define KEY_PPAGE 0x51
271 void (*ioctl_handler)(CONTEXT86 *);
274 static void INT21_IoctlScsiMgrHandler( CONTEXT86 * );
275 static void INT21_IoctlEMSHandler( CONTEXT86 * );
276 static void INT21_IoctlHPScanHandler( CONTEXT86 * );
278 static struct magic_device magic_devices[] =
280 { {'s','c','s','i','m','g','r','$',0}, NULL, { { 0, 0 } }, INT21_IoctlScsiMgrHandler },
281 { {'e','m','m','x','x','x','x','0',0}, NULL, { { 0, 0 } }, INT21_IoctlEMSHandler },
282 { {'h','p','s','c','a','n',0}, NULL, { { 0, 0 } }, INT21_IoctlHPScanHandler },
285 #define NB_MAGIC_DEVICES (sizeof(magic_devices)/sizeof(magic_devices[0]))
288 /* Many calls translate a drive argument like this:
289 drive number (00h = default, 01h = A:, etc)
291 /******************************************************************
294 * Many calls translate a drive argument like this:
295 * drive number (00h = default, 01h = A:, etc)
297 static const char *INT21_DriveName(int drive)
301 if (drive <= 26) return wine_dbg_sprintf("%c:", 'A' + drive - 1);
302 else return wine_dbg_sprintf( "<Bad drive: %d>", drive);
307 /***********************************************************************
308 * INT21_GetCurrentDrive
310 * Return current drive using scheme (0=A:, 1=B:, 2=C:, ...) or
311 * MAX_DOS_DRIVES on error.
313 static BYTE INT21_GetCurrentDrive(void)
315 WCHAR current_directory[MAX_PATH];
317 if (!GetCurrentDirectoryW( MAX_PATH, current_directory ) ||
318 current_directory[1] != ':')
320 TRACE( "Failed to get current drive.\n" );
321 return MAX_DOS_DRIVES;
324 return toupperW( current_directory[0] ) - 'A';
328 /***********************************************************************
331 * Convert drive number from scheme (0=default, 1=A:, 2=B:, ...) into
332 * scheme (0=A:, 1=B:, 2=C:, ...) or MAX_DOS_DRIVES on error.
334 static BYTE INT21_MapDrive( BYTE drive )
338 WCHAR drivespec[3] = {'A', ':', 0};
341 drivespec[0] += drive - 1;
342 drivetype = GetDriveTypeW( drivespec );
344 if (drivetype == DRIVE_UNKNOWN || drivetype == DRIVE_NO_ROOT_DIR)
345 return MAX_DOS_DRIVES;
350 return INT21_GetCurrentDrive();
354 /***********************************************************************
355 * INT21_SetCurrentDrive
357 * Set current drive. Uses scheme (0=A:, 1=B:, 2=C:, ...).
359 static void INT21_SetCurrentDrive( BYTE drive )
361 WCHAR drivespec[3] = {'A', ':', 0};
363 drivespec[0] += drive;
365 if (!SetCurrentDirectoryW( drivespec ))
366 TRACE( "Failed to set current drive.\n" );
370 /***********************************************************************
373 * Reads a character from the standard input.
374 * Extended keycodes will be returned as two separate characters.
376 static BOOL INT21_ReadChar( BYTE *input, CONTEXT86 *waitctx )
378 static BYTE pending_scan = 0;
383 *input = pending_scan;
392 if (!DOSVM_Int16ReadChar( &ascii, &scan, waitctx ))
397 if (waitctx && !ascii)
404 /***********************************************************************
405 * INT21_GetSystemCountryCode
407 * Return DOS country code for default system locale.
409 static WORD INT21_GetSystemCountryCode( void )
412 * FIXME: Determine country code. We should probably use
413 * DOSCONF structure for that.
415 return GetSystemDefaultLangID();
419 /***********************************************************************
420 * INT21_FillCountryInformation
422 * Fill 34-byte buffer with country information data using
423 * default system locale.
425 static void INT21_FillCountryInformation( BYTE *buffer )
427 /* 00 - WORD: date format
432 *(WORD*)(buffer + 0) = 0; /* FIXME: Get from locale */
434 /* 02 - BYTE[5]: ASCIIZ currency symbol string */
435 buffer[2] = '$'; /* FIXME: Get from locale */
438 /* 07 - BYTE[2]: ASCIIZ thousands separator */
439 buffer[7] = 0; /* FIXME: Get from locale */
442 /* 09 - BYTE[2]: ASCIIZ decimal separator */
443 buffer[9] = '.'; /* FIXME: Get from locale */
446 /* 11 - BYTE[2]: ASCIIZ date separator */
447 buffer[11] = '/'; /* FIXME: Get from locale */
450 /* 13 - BYTE[2]: ASCIIZ time separator */
451 buffer[13] = ':'; /* FIXME: Get from locale */
454 /* 15 - BYTE: Currency format
455 * bit 2 = set if currency symbol replaces decimal point
456 * bit 1 = number of spaces between value and currency symbol
457 * bit 0 = 0 if currency symbol precedes value
458 * 1 if currency symbol follows value
460 buffer[15] = 0; /* FIXME: Get from locale */
462 /* 16 - BYTE: Number of digits after decimal in currency */
463 buffer[16] = 0; /* FIXME: Get from locale */
465 /* 17 - BYTE: Time format
466 * bit 0 = 0 if 12-hour clock
469 buffer[17] = 1; /* FIXME: Get from locale */
471 /* 18 - DWORD: Address of case map routine */
472 *(DWORD*)(buffer + 18) = 0; /* FIXME: ptr to case map routine */
474 /* 22 - BYTE[2]: ASCIIZ data-list separator */
475 buffer[22] = ','; /* FIXME: Get from locale */
478 /* 24 - BYTE[10]: Reserved */
479 memset( buffer + 24, 0, 10 );
483 /***********************************************************************
486 * Initialize DOS heap.
488 * Filename Terminator Table of w2k DE NTVDM:
489 * 16 00 01 00 FF 00 00 20-02 0E 2E 22 2F 5C 5B 5D ....... ..."/\[]
490 * 3A 7C 3C 3E 2B 3D 3B 2C-00 :|<>+=;,
492 static void INT21_FillHeap( INT21_HEAP *heap )
494 static const char terminators[] = ".\"/\\[]:|<>+=;,";
500 heap->uppercase_size = 128;
501 for (i = 0; i < 128; i++)
502 heap->uppercase_table[i] = toupper( 128 + i );
507 heap->lowercase_size = 256;
508 for (i = 0; i < 256; i++)
509 heap->lowercase_table[i] = tolower( i );
514 heap->collating_size = 256;
515 for (i = 0; i < 256; i++)
516 heap->collating_table[i] = i;
521 heap->filename_size = 8 + strlen(terminators);
522 heap->filename_illegal_size = strlen(terminators);
523 memcpy( heap->filename_illegal_table, terminators, heap->filename_illegal_size );
525 heap->filename_reserved1 = 0x01;
526 heap->filename_lowest = 0x00;
527 heap->filename_highest = 0xff;
528 heap->filename_reserved2 = 0x00;
529 heap->filename_exclude_first = 0x00;
530 heap->filename_exclude_last = 0x20;
531 heap->filename_reserved3 = 0x02;
534 * DBCS lead byte table. This table is empty.
537 memset( heap->dbcs_table, 0, sizeof(heap->dbcs_table) );
540 * Initialize InDos flag.
542 heap->misc_indos = 0;
545 * FIXME: Should drive parameter blocks (DPB) be
546 * initialized here and linked to DOS LOL?
551 /***********************************************************************
552 * INT21_GetHeapPointer
554 * Get pointer for DOS heap (INT21_HEAP).
555 * Creates and initializes heap on first call.
557 static INT21_HEAP *INT21_GetHeapPointer( void )
559 static INT21_HEAP *heap_pointer = NULL;
566 heap_pointer = DOSVM_AllocDataUMB( sizeof(INT21_HEAP),
570 heap_pointer->misc_segment = heap_segment;
571 heap_pointer->misc_selector = heap_selector;
572 INT21_FillHeap( heap_pointer );
579 /***********************************************************************
580 * INT21_GetHeapSelector
582 * Get segment/selector for DOS heap (INT21_HEAP).
583 * Creates and initializes heap on first call.
585 static WORD INT21_GetHeapSelector( CONTEXT86 *context )
587 INT21_HEAP *heap = INT21_GetHeapPointer();
589 if (!ISV86(context) && DOSVM_IsWin16())
590 return heap->misc_selector;
592 return heap->misc_segment;
596 /***********************************************************************
599 * Fill DOS heap drive parameter block for the specified drive.
600 * Return TRUE if drive was valid and there were
601 * no errors while reading drive information.
603 static BOOL INT21_FillDrivePB( BYTE drive )
605 WCHAR drivespec[3] = {'A', ':', 0};
606 INT21_HEAP *heap = INT21_GetHeapPointer();
609 DWORD cluster_sectors;
612 DWORD total_clusters;
614 if (drive >= MAX_DOS_DRIVES)
617 dpb = &heap->misc_dpb_list[drive];
618 drivespec[0] += drive;
619 drivetype = GetDriveTypeW( drivespec );
622 * FIXME: Does this check work correctly with floppy/cdrom drives?
624 if (drivetype == DRIVE_NO_ROOT_DIR || drivetype == DRIVE_UNKNOWN)
628 * FIXME: Does this check work correctly with floppy/cdrom drives?
630 if (!GetDiskFreeSpaceW( drivespec, &cluster_sectors, §or_bytes,
631 &free_clusters, &total_clusters ))
635 * FIXME: Most of the values listed below are incorrect.
636 * All values should be validated.
641 dpb->sector_bytes = sector_bytes;
642 dpb->cluster_sectors = cluster_sectors - 1;
645 while (cluster_sectors > 1)
647 cluster_sectors /= 2;
651 dpb->num_reserved = 0;
653 dpb->num_root_entries = 2;
654 dpb->first_data_sector = 2;
655 dpb->num_clusters1 = total_clusters;
656 dpb->sectors_per_FAT = 1;
657 dpb->first_dir_sector = 1;
658 dpb->driver_header = 0;
659 dpb->media_ID = (drivetype == DRIVE_FIXED) ? 0xF8 : 0xF0;
660 dpb->access_flag = 0;
662 dpb->search_cluster1 = 0;
663 dpb->free_clusters_lo = LOWORD(free_clusters);
664 dpb->free_clusters_hi = HIWORD(free_clusters);
665 dpb->mirroring_flags = 0;
666 dpb->info_sector = 0xffff;
667 dpb->spare_boot_sector = 0xffff;
668 dpb->first_cluster_sector = 0;
669 dpb->num_clusters2 = total_clusters;
670 dpb->fat_clusters = 32;
671 dpb->root_cluster = 0;
672 dpb->search_cluster2 = 0;
678 /***********************************************************************
679 * INT21_GetCurrentDirectory
683 * - subfunction 0x47 of function 0x71
685 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context, BOOL islong )
687 char *buffer = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi);
688 BYTE drive = INT21_MapDrive( DL_reg(context) );
689 WCHAR pathW[MAX_PATH];
690 char pathA[MAX_PATH];
693 TRACE( "drive %d\n", DL_reg(context) );
695 if (drive == MAX_DOS_DRIVES)
697 SetLastError(ERROR_INVALID_DRIVE);
702 * Grab current directory.
705 if (!GetCurrentDirectoryW( MAX_PATH, pathW )) return FALSE;
707 if (toupperW(pathW[0]) - 'A' != drive || pathW[1] != ':')
709 /* cwd is not on the requested drive, get the environment string instead */
714 env_var[1] = 'A' + drive;
717 if (!GetEnvironmentVariableW( env_var, pathW, MAX_PATH ))
719 /* return empty path */
726 * Convert into short format.
731 DWORD result = GetShortPathNameW( pathW, pathW, MAX_PATH );
734 if (result > MAX_PATH)
736 WARN( "Short path too long!\n" );
737 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
743 * The returned pathname does not include
744 * the drive letter, colon or leading backslash.
750 * FIXME: We should probably just strip host part from name...
752 FIXME( "UNC names are not supported.\n" );
753 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
756 else if (!ptr[0] || ptr[1] != ':' || ptr[2] != '\\')
758 WARN( "Path is neither UNC nor DOS path: %s\n",
759 wine_dbgstr_w(ptr) );
760 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
765 /* Remove drive letter, colon and leading backslash. */
770 * Convert into OEM string.
773 if (!WideCharToMultiByte(CP_OEMCP, 0, ptr, -1, pathA,
774 MAX_PATH, NULL, NULL))
776 WARN( "Cannot convert path!\n" );
777 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
787 /* Undocumented success code. */
788 SET_AX( context, 0x0100 );
790 /* Truncate buffer to 64 bytes. */
794 TRACE( "%c:=%s\n", 'A' + drive, pathA );
796 strcpy( buffer, pathA );
801 /***********************************************************************
802 * INT21_SetCurrentDirectory
806 * - subfunction 0x3b of function 0x71
808 static BOOL INT21_SetCurrentDirectory( CONTEXT86 *context )
810 WCHAR dirW[MAX_PATH];
813 char *dirA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
814 BYTE drive = INT21_GetCurrentDrive();
817 TRACE( "SET CURRENT DIRECTORY %s\n", dirA );
819 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
820 if (!GetFullPathNameW( dirW, MAX_PATH, dirW, NULL )) return FALSE;
822 attr = GetFileAttributesW( dirW );
823 if (attr == INVALID_FILE_ATTRIBUTES || !(attr & FILE_ATTRIBUTE_DIRECTORY))
825 SetLastError( ERROR_PATH_NOT_FOUND );
830 env_var[1] = dirW[0];
833 result = SetEnvironmentVariableW( env_var, dirW );
835 /* only set current directory if on the current drive */
836 if (result && (toupperW(dirW[0]) - 'A' == drive)) result = SetCurrentDirectoryW( dirW );
841 /***********************************************************************
842 * INT21_CreateMagicDeviceHandle
844 * Create a dummy file handle for a "magic" device.
846 static HANDLE INT21_CreateMagicDeviceHandle( LPCWSTR name )
848 const char *dir = wine_get_server_dir();
852 OBJECT_ATTRIBUTES attr;
853 UNICODE_STRING nameW;
856 len = MultiByteToWideChar( CP_UNIXCP, 0, dir, -1, NULL, 0 );
857 nameW.Length = (len + 1 + strlenW( name )) * sizeof(WCHAR);
858 nameW.MaximumLength = nameW.Length + sizeof(WCHAR);
859 if (!(nameW.Buffer = HeapAlloc( GetProcessHeap(), 0, nameW.Length )))
861 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
864 MultiByteToWideChar( CP_UNIXCP, 0, dir, -1, nameW.Buffer, len );
865 nameW.Buffer[len-1] = '/';
866 strcpyW( nameW.Buffer + len, name );
868 attr.Length = sizeof(attr);
869 attr.RootDirectory = 0;
871 attr.ObjectName = &nameW;
872 attr.SecurityDescriptor = NULL;
873 attr.SecurityQualityOfService = NULL;
875 status = NtCreateFile( &ret, GENERIC_READ|GENERIC_WRITE, &attr, &io, NULL, 0,
876 FILE_SHARE_READ|FILE_SHARE_WRITE, FILE_OPEN_IF,
877 FILE_SYNCHRONOUS_IO_ALERT, NULL, 0 );
881 SetLastError( RtlNtStatusToDosError(status) );
883 RtlFreeUnicodeString( &nameW );
888 /***********************************************************************
889 * INT21_OpenMagicDevice
891 * Open a file handle for "magic" devices like EMMXXXX0.
893 static HANDLE INT21_OpenMagicDevice( LPCWSTR name, DWORD access )
899 if (name[0] && (name[1] == ':')) name += 2;
900 if ((p = strrchrW( name, '/' ))) name = p + 1;
901 if ((p = strrchrW( name, '\\' ))) name = p + 1;
903 for (i = 0; i < NB_MAGIC_DEVICES; i++)
905 int len = strlenW( magic_devices[i].name );
906 if (!strncmpiW( magic_devices[i].name, name, len ) &&
907 (!name[len] || name[len] == '.' || name[len] == ':')) break;
909 if (i == NB_MAGIC_DEVICES) return 0;
911 if (!magic_devices[i].handle) /* need to open it */
914 FILE_INTERNAL_INFORMATION info;
916 if (!(handle = INT21_CreateMagicDeviceHandle( magic_devices[i].name ))) return 0;
918 NtQueryInformationFile( handle, &io, &info, sizeof(info), FileInternalInformation );
919 magic_devices[i].index = info.IndexNumber;
920 magic_devices[i].handle = handle;
922 if (!DuplicateHandle( GetCurrentProcess(), magic_devices[i].handle,
923 GetCurrentProcess(), &handle, access, FALSE, 0 )) handle = 0;
928 /***********************************************************************
936 * - subfunction 0x6c of function 0x71
938 static BOOL INT21_CreateFile( CONTEXT86 *context,
945 char *pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, pathSegOff);
946 WCHAR pathW[MAX_PATH];
953 TRACE( "CreateFile called: function=%02x, action=%02x, access/share=%04x, "
954 "create flags=%04x, file=%s.\n",
955 AH_reg(context), dosAction, dosAccessShare, CX_reg(context), pathA );
958 * Application tried to create/open a file whose name
959 * ends with a backslash. This is not allowed.
961 * FIXME: This needs to be validated, especially the return value.
963 if (pathA[strlen(pathA) - 1] == '/')
965 SetLastError( ERROR_FILE_NOT_FOUND );
970 * Convert DOS action flags into Win32 creation disposition parameter.
975 winMode = OPEN_EXISTING;
978 winMode = TRUNCATE_EXISTING;
981 winMode = CREATE_NEW;
984 winMode = OPEN_ALWAYS;
987 winMode = CREATE_ALWAYS;
990 SetLastError( ERROR_INVALID_PARAMETER );
995 * Convert DOS access/share flags into Win32 desired access parameter.
997 switch(dosAccessShare & 0x07)
1000 winAccess = GENERIC_READ;
1003 winAccess = GENERIC_WRITE;
1006 winAccess = GENERIC_READ | GENERIC_WRITE;
1010 * Read-only, do not modify file's last-access time (DOS7).
1012 * FIXME: How to prevent modification of last-access time?
1014 winAccess = GENERIC_READ;
1021 * Convert DOS access/share flags into Win32 share mode parameter.
1023 switch(dosAccessShare & 0x70)
1025 case OF_SHARE_EXCLUSIVE:
1028 case OF_SHARE_DENY_WRITE:
1029 winSharing = FILE_SHARE_READ;
1031 case OF_SHARE_DENY_READ:
1032 winSharing = FILE_SHARE_WRITE;
1034 case OF_SHARE_DENY_NONE:
1035 case OF_SHARE_COMPAT:
1037 winSharing = FILE_SHARE_READ | FILE_SHARE_WRITE;
1041 * FIXME: Bit (dosAccessShare & 0x80) represents inheritance.
1042 * What to do with this bit?
1043 * FIXME: Bits in the high byte of dosAccessShare are not supported.
1044 * See both function 0x6c and subfunction 0x6c of function 0x71 for
1045 * definition of these bits.
1049 * Convert DOS create attributes into Win32 flags and attributes parameter.
1051 if (winMode == OPEN_EXISTING || winMode == TRUNCATE_EXISTING)
1057 WORD dosAttributes = CX_reg(context);
1059 if (dosAttributes & FA_LABEL)
1062 * Application tried to create volume label entry.
1063 * This is difficult to support so we do not allow it.
1065 * FIXME: If volume does not already have a label,
1066 * this function is supposed to succeed.
1068 SetLastError( ERROR_ACCESS_DENIED );
1072 winAttributes = dosAttributes &
1073 (FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN |
1074 FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_ARCHIVE);
1080 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
1082 if ((winHandle = INT21_OpenMagicDevice( pathW, winAccess )))
1088 winHandle = CreateFileW( pathW, winAccess, winSharing, NULL,
1089 winMode, winAttributes, 0 );
1090 /* DOS allows to open files on a CDROM R/W */
1091 if( winHandle == INVALID_HANDLE_VALUE &&
1092 GetLastError()== ERROR_WRITE_PROTECT) {
1093 winHandle = CreateFileW( pathW, winAccess & ~GENERIC_WRITE,
1094 winSharing, NULL, winMode, winAttributes, 0 );
1097 if (winHandle == INVALID_HANDLE_VALUE)
1101 * Determine DOS file status.
1112 case TRUNCATE_EXISTING:
1119 dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 1 : 2;
1122 dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 3 : 2;
1130 * Return DOS file handle and DOS status.
1132 SET_AX( context, Win32HandleToDosFileHandle(winHandle) );
1135 SET_CX( context, dosStatus );
1137 TRACE( "CreateFile finished: handle=%d, status=%d.\n",
1138 AX_reg(context), dosStatus );
1144 /***********************************************************************
1145 * INT21_BufferedInput
1147 * Handler for function 0x0a and reading from console using
1150 * Reads a string of characters from standard input until
1151 * enter key is pressed. Returns either number of characters
1152 * read from console including terminating CR or
1153 * zero if capacity was zero.
1155 static WORD INT21_BufferedInput( CONTEXT86 *context, BYTE *ptr, WORD capacity )
1160 * Return immediately if capacity is zero.
1170 DOSVM_Int16ReadChar( &ascii, &scan, context );
1172 if (ascii == '\r' || ascii == '\n')
1179 * DOS handles only backspace and KEY_LEFT
1180 * perhaps we should do more
1182 if (ascii == '\b' || scan == KEY_LEFT)
1184 if (length==0) continue;
1185 DOSVM_PutChar( '\b' );
1191 * If the buffer becomes filled to within one byte of
1192 * capacity, DOS rejects all further characters up to,
1193 * but not including, the terminating carriage return.
1195 if (ascii != 0 && length < capacity-1)
1197 DOSVM_PutChar( ascii );
1198 ptr[length] = ascii;
1205 /***********************************************************************
1206 * INT21_GetCurrentDTA
1208 static BYTE *INT21_GetCurrentDTA( CONTEXT86 *context )
1210 TDB *pTask = GlobalLock16(GetCurrentTask());
1212 /* FIXME: This assumes DTA was set correctly! */
1213 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
1214 (DWORD)OFFSETOF(pTask->dta) );
1218 /***********************************************************************
1219 * INT21_OpenFileUsingFCB
1221 * Handler for function 0x0f.
1224 * DX:DX [I/O] File control block (FCB or XFCB) of unopened file
1231 * Opens a FCB file for read/write in compatibility mode. Upon calling
1232 * the FCB must have the drive_number, file_name, and file_extension
1233 * fields filled and all other bytes cleared.
1235 static void INT21_OpenFileUsingFCB( CONTEXT86 *context )
1243 BY_HANDLE_FILE_INFORMATION info;
1246 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1247 if (fcb->drive_number == 0xff) {
1248 xfcb = (struct XFCB *) fcb;
1249 fcb = (struct FCB *) xfcb->fcb;
1253 file_path[0] = 'A' + INT21_MapDrive( fcb->drive_number );
1255 if (AL_result == 0) {
1257 pos = &file_path[2];
1258 memcpy(pos, fcb->file_name, 8);
1261 pos = strchr(pos, ' ');
1264 memcpy(pos, fcb->file_extension, 3);
1267 pos = strchr(pos, ' ');
1270 handle = (HANDLE) _lopen(file_path, OF_READWRITE);
1271 if (handle == INVALID_HANDLE_VALUE) {
1272 TRACE("_lopen(\"%s\") failed: INVALID_HANDLE_VALUE\n", file_path);
1273 AL_result = 0xff; /* failed */
1275 hfile16 = Win32HandleToDosFileHandle(handle);
1276 if (hfile16 == HFILE_ERROR16) {
1277 TRACE("Win32HandleToDosFileHandle(%p) failed: HFILE_ERROR\n", handle);
1278 CloseHandle(handle);
1279 AL_result = 0xff; /* failed */
1280 } else if (hfile16 > 255) {
1281 TRACE("hfile16 (=%d) larger than 255 for \"%s\"\n", hfile16, file_path);
1283 AL_result = 0xff; /* failed */
1285 if (!GetFileInformationByHandle(handle, &info)) {
1286 TRACE("GetFileInformationByHandle(%d, %p) for \"%s\" failed\n",
1287 hfile16, handle, file_path);
1289 AL_result = 0xff; /* failed */
1291 fcb->drive_number = file_path[0] - 'A' + 1;
1292 fcb->current_block_number = 0;
1293 fcb->logical_record_size = 128;
1294 fcb->file_size = info.nFileSizeLow;
1295 FileTimeToDosDateTime(&info.ftLastWriteTime,
1296 &fcb->date_of_last_write, &fcb->time_of_last_write);
1297 fcb->file_number = hfile16;
1298 fcb->attributes = 0xc2;
1299 fcb->starting_cluster = 0; /* don't know correct init value */
1300 fcb->sequence_number = 0; /* don't know correct init value */
1301 fcb->file_attributes = info.dwFileAttributes;
1302 /* The following fields are not initialized */
1303 /* by the native function: */
1305 /* record_within_current_block */
1306 /* random_access_record_number */
1308 TRACE("successful opened file \"%s\" as %d (handle %p)\n",
1309 file_path, hfile16, handle);
1310 AL_result = 0x00; /* successful */
1315 SET_AL(context, AL_result);
1319 /***********************************************************************
1320 * INT21_CloseFileUsingFCB
1322 * Handler for function 0x10.
1325 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1332 * Closes a FCB file.
1334 static void INT21_CloseFileUsingFCB( CONTEXT86 *context )
1340 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1341 if (fcb->drive_number == 0xff) {
1342 xfcb = (struct XFCB *) fcb;
1343 fcb = (struct FCB *) xfcb->fcb;
1346 if (_lclose16((HFILE16) fcb->file_number) != 0) {
1347 TRACE("_lclose16(%d) failed\n", fcb->file_number);
1348 AL_result = 0xff; /* failed */
1350 TRACE("successful closed file %d\n", fcb->file_number);
1351 AL_result = 0x00; /* successful */
1353 SET_AL(context, AL_result);
1357 /***********************************************************************
1358 * INT21_SequentialReadFromFCB
1360 * Handler for function 0x14.
1363 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1367 * 1: end of file, no data read
1368 * 2: segment wrap in DTA, no data read (not returned now)
1369 * 3: end of file, partial record read
1372 * Reads a record with the size FCB->logical_record_size from the FCB
1373 * to the disk transfer area. The position of the record is specified
1374 * with FCB->current_block_number and FCB->record_within_current_block.
1375 * Then FCB->current_block_number and FCB->record_within_current_block
1376 * are updated to point to the next record. If a partial record is
1377 * read, it is filled with zeros up to the FCB->logical_record_size.
1379 static void INT21_SequentialReadFromFCB( CONTEXT86 *context )
1384 DWORD record_number;
1386 BYTE *disk_transfer_area;
1390 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1391 if (fcb->drive_number == 0xff) {
1392 xfcb = (struct XFCB *) fcb;
1393 fcb = (struct FCB *) xfcb->fcb;
1396 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1397 if (handle == INVALID_HANDLE_VALUE) {
1398 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1400 AL_result = 0x01; /* end of file, no data read */
1402 record_number = 128 * fcb->current_block_number + fcb->record_within_current_block;
1403 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1404 if (position != record_number * fcb->logical_record_size) {
1405 TRACE("seek(%d, %d, 0) failed with %ld\n",
1406 fcb->file_number, record_number * fcb->logical_record_size, position);
1407 AL_result = 0x01; /* end of file, no data read */
1409 disk_transfer_area = INT21_GetCurrentDTA(context);
1410 bytes_read = _lread((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
1411 if (bytes_read != fcb->logical_record_size) {
1412 TRACE("_lread(%d, %p, %d) failed with %d\n",
1413 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_read);
1414 if (bytes_read == 0) {
1415 AL_result = 0x01; /* end of file, no data read */
1417 memset(&disk_transfer_area[bytes_read], 0, fcb->logical_record_size - bytes_read);
1418 AL_result = 0x03; /* end of file, partial record read */
1421 TRACE("successful read %d bytes from record %d (position %ld) of file %d (handle %p)\n",
1422 bytes_read, record_number, position, fcb->file_number, handle);
1423 AL_result = 0x00; /* successful */
1427 if (AL_result == 0x00 || AL_result == 0x03) {
1428 if (fcb->record_within_current_block == 127) {
1429 fcb->record_within_current_block = 0;
1430 fcb->current_block_number++;
1432 fcb->record_within_current_block++;
1435 SET_AL(context, AL_result);
1439 /***********************************************************************
1440 * INT21_SequentialWriteToFCB
1442 * Handler for function 0x15.
1445 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1450 * 2: segment wrap in DTA (not returned now)
1453 * Writes a record with the size FCB->logical_record_size from the disk
1454 * transfer area to the FCB. The position of the record is specified
1455 * with FCB->current_block_number and FCB->record_within_current_block.
1456 * Then FCB->current_block_number and FCB->record_within_current_block
1457 * are updated to point to the next record.
1459 static void INT21_SequentialWriteToFCB( CONTEXT86 *context )
1464 DWORD record_number;
1466 BYTE *disk_transfer_area;
1470 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1471 if (fcb->drive_number == 0xff) {
1472 xfcb = (struct XFCB *) fcb;
1473 fcb = (struct FCB *) xfcb->fcb;
1476 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1477 if (handle == INVALID_HANDLE_VALUE) {
1478 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1480 AL_result = 0x01; /* disk full */
1482 record_number = 128 * fcb->current_block_number + fcb->record_within_current_block;
1483 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1484 if (position != record_number * fcb->logical_record_size) {
1485 TRACE("seek(%d, %d, 0) failed with %ld\n",
1486 fcb->file_number, record_number * fcb->logical_record_size, position);
1487 AL_result = 0x01; /* disk full */
1489 disk_transfer_area = INT21_GetCurrentDTA(context);
1490 bytes_written = _lwrite((HFILE) handle, (LPCSTR)disk_transfer_area, fcb->logical_record_size);
1491 if (bytes_written != fcb->logical_record_size) {
1492 TRACE("_lwrite(%d, %p, %d) failed with %d\n",
1493 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_written);
1494 AL_result = 0x01; /* disk full */
1496 TRACE("successful written %d bytes from record %d (position %ld) of file %d (handle %p)\n",
1497 bytes_written, record_number, position, fcb->file_number, handle);
1498 AL_result = 0x00; /* successful */
1502 if (AL_result == 0x00) {
1503 if (fcb->record_within_current_block == 127) {
1504 fcb->record_within_current_block = 0;
1505 fcb->current_block_number++;
1507 fcb->record_within_current_block++;
1510 SET_AL(context, AL_result);
1514 /***********************************************************************
1515 * INT21_ReadRandomRecordFromFCB
1517 * Handler for function 0x21.
1520 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1524 * 1: end of file, no data read
1525 * 2: segment wrap in DTA, no data read (not returned now)
1526 * 3: end of file, partial record read
1529 * Reads a record with the size FCB->logical_record_size from
1530 * the FCB to the disk transfer area. The position of the record
1531 * is specified with FCB->random_access_record_number. The
1532 * FCB->random_access_record_number is not updated. If a partial record
1533 * is read, it is filled with zeros up to the FCB->logical_record_size.
1535 static void INT21_ReadRandomRecordFromFCB( CONTEXT86 *context )
1540 DWORD record_number;
1542 BYTE *disk_transfer_area;
1546 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1547 if (fcb->drive_number == 0xff) {
1548 xfcb = (struct XFCB *) fcb;
1549 fcb = (struct FCB *) xfcb->fcb;
1552 memcpy(&record_number, fcb->random_access_record_number, 4);
1553 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1554 if (handle == INVALID_HANDLE_VALUE) {
1555 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1557 AL_result = 0x01; /* end of file, no data read */
1559 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1560 if (position != record_number * fcb->logical_record_size) {
1561 TRACE("seek(%d, %d, 0) failed with %ld\n",
1562 fcb->file_number, record_number * fcb->logical_record_size, position);
1563 AL_result = 0x01; /* end of file, no data read */
1565 disk_transfer_area = INT21_GetCurrentDTA(context);
1566 bytes_read = _lread((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
1567 if (bytes_read != fcb->logical_record_size) {
1568 TRACE("_lread(%d, %p, %d) failed with %d\n",
1569 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_read);
1570 if (bytes_read == 0) {
1571 AL_result = 0x01; /* end of file, no data read */
1573 memset(&disk_transfer_area[bytes_read], 0, fcb->logical_record_size - bytes_read);
1574 AL_result = 0x03; /* end of file, partial record read */
1577 TRACE("successful read %d bytes from record %d (position %ld) of file %d (handle %p)\n",
1578 bytes_read, record_number, position, fcb->file_number, handle);
1579 AL_result = 0x00; /* successful */
1583 fcb->current_block_number = record_number / 128;
1584 fcb->record_within_current_block = record_number % 128;
1585 SET_AL(context, AL_result);
1589 /***********************************************************************
1590 * INT21_WriteRandomRecordToFCB
1592 * Handler for function 0x22.
1595 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1600 * 2: segment wrap in DTA (not returned now)
1603 * Writes a record with the size FCB->logical_record_size from
1604 * the disk transfer area to the FCB. The position of the record
1605 * is specified with FCB->random_access_record_number. The
1606 * FCB->random_access_record_number is not updated.
1608 static void INT21_WriteRandomRecordToFCB( CONTEXT86 *context )
1613 DWORD record_number;
1615 BYTE *disk_transfer_area;
1619 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1620 if (fcb->drive_number == 0xff) {
1621 xfcb = (struct XFCB *) fcb;
1622 fcb = (struct FCB *) xfcb->fcb;
1625 memcpy(&record_number, fcb->random_access_record_number, 4);
1626 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1627 if (handle == INVALID_HANDLE_VALUE) {
1628 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1630 AL_result = 0x01; /* disk full */
1632 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1633 if (position != record_number * fcb->logical_record_size) {
1634 TRACE("seek(%d, %d, 0) failed with %ld\n",
1635 fcb->file_number, record_number * fcb->logical_record_size, position);
1636 AL_result = 0x01; /* disk full */
1638 disk_transfer_area = INT21_GetCurrentDTA(context);
1639 bytes_written = _lwrite((HFILE) handle, (LPCSTR)disk_transfer_area, fcb->logical_record_size);
1640 if (bytes_written != fcb->logical_record_size) {
1641 TRACE("_lwrite(%d, %p, %d) failed with %d\n",
1642 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_written);
1643 AL_result = 0x01; /* disk full */
1645 TRACE("successful written %d bytes from record %d (position %ld) of file %d (handle %p)\n",
1646 bytes_written, record_number, position, fcb->file_number, handle);
1647 AL_result = 0x00; /* successful */
1651 fcb->current_block_number = record_number / 128;
1652 fcb->record_within_current_block = record_number % 128;
1653 SET_AL(context, AL_result);
1657 /***********************************************************************
1658 * INT21_RandomBlockReadFromFCB
1660 * Handler for function 0x27.
1663 * CX [I/O] Number of records to read
1664 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1668 * 1: end of file, no data read
1669 * 2: segment wrap in DTA, no data read (not returned now)
1670 * 3: end of file, partial record read
1673 * Reads several records with the size FCB->logical_record_size from
1674 * the FCB to the disk transfer area. The number of records to be
1675 * read is specified in the CX register. The position of the first
1676 * record is specified with FCB->random_access_record_number. The
1677 * FCB->random_access_record_number, the FCB->current_block_number
1678 * and FCB->record_within_current_block are updated to point to the
1679 * next record after the records read. If a partial record is read,
1680 * it is filled with zeros up to the FCB->logical_record_size. The
1681 * CX register is set to the number of successfully read records.
1683 static void INT21_RandomBlockReadFromFCB( CONTEXT86 *context )
1688 DWORD record_number;
1690 BYTE *disk_transfer_area;
1691 UINT records_requested;
1692 UINT bytes_requested;
1697 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1698 if (fcb->drive_number == 0xff) {
1699 xfcb = (struct XFCB *) fcb;
1700 fcb = (struct FCB *) xfcb->fcb;
1703 memcpy(&record_number, fcb->random_access_record_number, 4);
1704 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1705 if (handle == INVALID_HANDLE_VALUE) {
1706 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1709 AL_result = 0x01; /* end of file, no data read */
1711 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1712 if (position != record_number * fcb->logical_record_size) {
1713 TRACE("seek(%d, %d, 0) failed with %ld\n",
1714 fcb->file_number, record_number * fcb->logical_record_size, position);
1716 AL_result = 0x01; /* end of file, no data read */
1718 disk_transfer_area = INT21_GetCurrentDTA(context);
1719 records_requested = CX_reg(context);
1720 bytes_requested = (UINT) records_requested * fcb->logical_record_size;
1721 bytes_read = _lread((HFILE) handle, disk_transfer_area, bytes_requested);
1722 if (bytes_read != bytes_requested) {
1723 TRACE("_lread(%d, %p, %d) failed with %d\n",
1724 fcb->file_number, disk_transfer_area, bytes_requested, bytes_read);
1725 records_read = bytes_read / fcb->logical_record_size;
1726 if (bytes_read % fcb->logical_record_size == 0) {
1727 AL_result = 0x01; /* end of file, no data read */
1730 memset(&disk_transfer_area[bytes_read], 0, records_read * fcb->logical_record_size - bytes_read);
1731 AL_result = 0x03; /* end of file, partial record read */
1734 TRACE("successful read %d bytes from record %d (position %ld) of file %d (handle %p)\n",
1735 bytes_read, record_number, position, fcb->file_number, handle);
1736 records_read = records_requested;
1737 AL_result = 0x00; /* successful */
1741 record_number += records_read;
1742 memcpy(fcb->random_access_record_number, &record_number, 4);
1743 fcb->current_block_number = record_number / 128;
1744 fcb->record_within_current_block = record_number % 128;
1745 SET_CX(context, records_read);
1746 SET_AL(context, AL_result);
1750 /***********************************************************************
1751 * INT21_RandomBlockWriteToFCB
1753 * Handler for function 0x28.
1756 * CX [I/O] Number of records to write
1757 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1762 * 2: segment wrap in DTA (not returned now)
1765 * Writes several records with the size FCB->logical_record_size from
1766 * the disk transfer area to the FCB. The number of records to be
1767 * written is specified in the CX register. The position of the first
1768 * record is specified with FCB->random_access_record_number. The
1769 * FCB->random_access_record_number, the FCB->current_block_number
1770 * and FCB->record_within_current_block are updated to point to the
1771 * next record after the records written. The CX register is set to
1772 * the number of successfully written records.
1774 static void INT21_RandomBlockWriteToFCB( CONTEXT86 *context )
1779 DWORD record_number;
1781 BYTE *disk_transfer_area;
1782 UINT records_requested;
1783 UINT bytes_requested;
1785 UINT records_written;
1788 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1789 if (fcb->drive_number == 0xff) {
1790 xfcb = (struct XFCB *) fcb;
1791 fcb = (struct FCB *) xfcb->fcb;
1794 memcpy(&record_number, fcb->random_access_record_number, 4);
1795 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1796 if (handle == INVALID_HANDLE_VALUE) {
1797 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1799 records_written = 0;
1800 AL_result = 0x01; /* disk full */
1802 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1803 if (position != record_number * fcb->logical_record_size) {
1804 TRACE("seek(%d, %d, 0) failed with %ld\n",
1805 fcb->file_number, record_number * fcb->logical_record_size, position);
1806 records_written = 0;
1807 AL_result = 0x01; /* disk full */
1809 disk_transfer_area = INT21_GetCurrentDTA(context);
1810 records_requested = CX_reg(context);
1811 bytes_requested = (UINT) records_requested * fcb->logical_record_size;
1812 bytes_written = _lwrite((HFILE) handle, (LPCSTR)disk_transfer_area, bytes_requested);
1813 if (bytes_written != bytes_requested) {
1814 TRACE("_lwrite(%d, %p, %d) failed with %d\n",
1815 fcb->file_number, disk_transfer_area, bytes_requested, bytes_written);
1816 records_written = bytes_written / fcb->logical_record_size;
1817 AL_result = 0x01; /* disk full */
1819 TRACE("successful write %d bytes from record %d (position %ld) of file %d (handle %p)\n",
1820 bytes_written, record_number, position, fcb->file_number, handle);
1821 records_written = records_requested;
1822 AL_result = 0x00; /* successful */
1826 record_number += records_written;
1827 memcpy(fcb->random_access_record_number, &record_number, 4);
1828 fcb->current_block_number = record_number / 128;
1829 fcb->record_within_current_block = record_number % 128;
1830 SET_CX(context, records_written);
1831 SET_AL(context, AL_result);
1835 /***********************************************************************
1836 * INT21_CreateDirectory
1840 * - subfunction 0x39 of function 0x71
1841 * - subfunction 0xff of function 0x43 (CL == 0x39)
1843 static BOOL INT21_CreateDirectory( CONTEXT86 *context )
1845 WCHAR dirW[MAX_PATH];
1846 char *dirA = CTX_SEG_OFF_TO_LIN(context,
1850 TRACE( "CREATE DIRECTORY %s\n", dirA );
1852 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
1854 if (CreateDirectoryW(dirW, NULL))
1858 * FIXME: CreateDirectory's LastErrors will clash with the ones
1859 * used by DOS. AH=39 only returns 3 (path not found) and
1860 * 5 (access denied), while CreateDirectory return several
1861 * ones. Remap some of them. -Marcus
1863 switch (GetLastError())
1865 case ERROR_ALREADY_EXISTS:
1866 case ERROR_FILENAME_EXCED_RANGE:
1867 case ERROR_DISK_FULL:
1868 SetLastError(ERROR_ACCESS_DENIED);
1878 /***********************************************************************
1879 * INT21_ExtendedCountryInformation
1881 * Handler for function 0x65.
1883 static void INT21_ExtendedCountryInformation( CONTEXT86 *context )
1885 BYTE *dataptr = CTX_SEG_OFF_TO_LIN( context, context->SegEs, context->Edi );
1886 BYTE buffsize = CX_reg (context);
1888 TRACE( "GET EXTENDED COUNTRY INFORMATION, subfunction %02x\n",
1892 * Check subfunctions that are passed country and code page.
1894 if (AL_reg(context) >= 0x01 && AL_reg(context) <= 0x07)
1896 WORD country = DX_reg(context);
1897 WORD codepage = BX_reg(context);
1899 if (country != 0xffff && country != INT21_GetSystemCountryCode())
1900 FIXME( "Requested info on non-default country %04x\n", country );
1902 if (codepage != 0xffff && codepage != GetOEMCP())
1903 FIXME( "Requested info on non-default code page %04x\n", codepage );
1906 switch (AL_reg(context)) {
1907 case 0x00: /* SET GENERAL INTERNATIONALIZATION INFO */
1908 INT_BARF( context, 0x21 );
1909 SET_CFLAG( context );
1912 case 0x01: /* GET GENERAL INTERNATIONALIZATION INFO */
1913 TRACE( "Get general internationalization info\n" );
1914 dataptr[0] = 0x01; /* Info ID */
1915 *(WORD*)(dataptr+1) = 38; /* Size of the following info */
1916 *(WORD*)(dataptr+3) = INT21_GetSystemCountryCode(); /* Country ID */
1917 *(WORD*)(dataptr+5) = GetOEMCP(); /* Code page */
1918 /* FIXME: fill buffer partially up to buffsize bytes*/
1919 if (buffsize >= 0x29){
1920 INT21_FillCountryInformation( dataptr + 7 );
1921 SET_CX( context, 0x29 ); /* Size of returned info */
1923 SET_CX( context, 0x07 ); /* Size of returned info */
1927 case 0x02: /* GET POINTER TO UPPERCASE TABLE */
1928 case 0x04: /* GET POINTER TO FILENAME UPPERCASE TABLE */
1929 TRACE( "Get pointer to uppercase table\n" );
1930 dataptr[0] = AL_reg(context); /* Info ID */
1931 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1932 offsetof(INT21_HEAP, uppercase_size) );
1933 SET_CX( context, 5 ); /* Size of returned info */
1936 case 0x03: /* GET POINTER TO LOWERCASE TABLE */
1937 TRACE( "Get pointer to lowercase table\n" );
1938 dataptr[0] = 0x03; /* Info ID */
1939 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1940 offsetof(INT21_HEAP, lowercase_size) );
1941 SET_CX( context, 5 ); /* Size of returned info */
1944 case 0x05: /* GET POINTER TO FILENAME TERMINATOR TABLE */
1945 TRACE("Get pointer to filename terminator table\n");
1946 dataptr[0] = 0x05; /* Info ID */
1947 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1948 offsetof(INT21_HEAP, filename_size) );
1949 SET_CX( context, 5 ); /* Size of returned info */
1952 case 0x06: /* GET POINTER TO COLLATING SEQUENCE TABLE */
1953 TRACE("Get pointer to collating sequence table\n");
1954 dataptr[0] = 0x06; /* Info ID */
1955 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1956 offsetof(INT21_HEAP, collating_size) );
1957 SET_CX( context, 5 ); /* Size of returned info */
1960 case 0x07: /* GET POINTER TO DBCS LEAD BYTE TABLE */
1961 TRACE("Get pointer to DBCS lead byte table\n");
1962 dataptr[0] = 0x07; /* Info ID */
1963 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1964 offsetof(INT21_HEAP, dbcs_size) );
1965 SET_CX( context, 5 ); /* Size of returned info */
1968 case 0x20: /* CAPITALIZE CHARACTER */
1969 case 0xa0: /* CAPITALIZE FILENAME CHARACTER */
1970 TRACE("Convert char to uppercase\n");
1971 SET_DL( context, toupper(DL_reg(context)) );
1974 case 0x21: /* CAPITALIZE STRING */
1975 case 0xa1: /* CAPITALIZE COUNTED FILENAME STRING */
1976 TRACE("Convert string to uppercase with length\n");
1978 char *ptr = (char *)CTX_SEG_OFF_TO_LIN( context,
1981 WORD len = CX_reg(context);
1982 while (len--) { *ptr = toupper(*ptr); ptr++; }
1986 case 0x22: /* CAPITALIZE ASCIIZ STRING */
1987 case 0xa2: /* CAPITALIZE ASCIIZ FILENAME */
1988 TRACE("Convert ASCIIZ string to uppercase\n");
1990 char *p = CTX_SEG_OFF_TO_LIN( context, context->SegDs, context->Edx );
1991 for ( ; *p; p++) *p = toupper(*p);
1995 case 0x23: /* DETERMINE IF CHARACTER REPRESENTS YES/NO RESPONSE */
1996 INT_BARF( context, 0x21 );
1997 SET_CFLAG( context );
2001 INT_BARF( context, 0x21 );
2008 /***********************************************************************
2009 * INT21_FileAttributes
2013 * - subfunction 0x43 of function 0x71
2015 static BOOL INT21_FileAttributes( CONTEXT86 *context,
2019 WCHAR fileW[MAX_PATH];
2020 char *fileA = CTX_SEG_OFF_TO_LIN(context,
2029 switch (subfunction)
2031 case 0x00: /* GET FILE ATTRIBUTES */
2032 TRACE( "GET FILE ATTRIBUTES for %s\n", fileA );
2033 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2035 result = GetFileAttributesW( fileW );
2036 if (result == INVALID_FILE_ATTRIBUTES)
2040 SET_CX( context, (WORD)result );
2042 SET_AX( context, (WORD)result ); /* DR DOS */
2046 case 0x01: /* SET FILE ATTRIBUTES */
2047 TRACE( "SET FILE ATTRIBUTES 0x%02x for %s\n",
2048 CX_reg(context), fileA );
2049 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2051 if (!SetFileAttributesW( fileW, CX_reg(context) ))
2055 case 0x02: /* GET COMPRESSED FILE SIZE */
2056 TRACE( "GET COMPRESSED FILE SIZE for %s\n", fileA );
2057 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2059 result = GetCompressedFileSizeW( fileW, NULL );
2060 if (result == INVALID_FILE_SIZE)
2064 SET_AX( context, LOWORD(result) );
2065 SET_DX( context, HIWORD(result) );
2069 case 0x03: /* SET FILE LAST-WRITTEN DATE AND TIME */
2071 INT_BARF( context, 0x21 );
2074 TRACE( "SET FILE LAST-WRITTEN DATE AND TIME, file %s\n", fileA );
2075 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2077 handle = CreateFileW( fileW, GENERIC_WRITE,
2078 FILE_SHARE_READ | FILE_SHARE_WRITE,
2079 NULL, OPEN_EXISTING, 0, 0 );
2080 if (handle == INVALID_HANDLE_VALUE)
2083 DosDateTimeToFileTime( DI_reg(context),
2086 status = SetFileTime( handle, NULL, NULL, &filetime );
2088 CloseHandle( handle );
2093 case 0x04: /* GET FILE LAST-WRITTEN DATE AND TIME */
2095 INT_BARF( context, 0x21 );
2098 TRACE( "GET FILE LAST-WRITTEN DATE AND TIME, file %s\n", fileA );
2099 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2101 handle = CreateFileW( fileW, GENERIC_READ,
2102 FILE_SHARE_READ | FILE_SHARE_WRITE,
2103 NULL, OPEN_EXISTING, 0, 0 );
2104 if (handle == INVALID_HANDLE_VALUE)
2107 status = GetFileTime( handle, NULL, NULL, &filetime );
2110 FileTimeToDosDateTime( &filetime, &date, &time );
2111 SET_DI( context, date );
2112 SET_CX( context, time );
2115 CloseHandle( handle );
2120 case 0x05: /* SET FILE LAST ACCESS DATE */
2122 INT_BARF( context, 0x21 );
2125 TRACE( "SET FILE LAST ACCESS DATE, file %s\n", fileA );
2126 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2128 handle = CreateFileW( fileW, GENERIC_WRITE,
2129 FILE_SHARE_READ | FILE_SHARE_WRITE,
2130 NULL, OPEN_EXISTING, 0, 0 );
2131 if (handle == INVALID_HANDLE_VALUE)
2134 DosDateTimeToFileTime( DI_reg(context),
2137 status = SetFileTime( handle, NULL, &filetime, NULL );
2139 CloseHandle( handle );
2144 case 0x06: /* GET FILE LAST ACCESS DATE */
2146 INT_BARF( context, 0x21 );
2149 TRACE( "GET FILE LAST ACCESS DATE, file %s\n", fileA );
2150 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2152 handle = CreateFileW( fileW, GENERIC_READ,
2153 FILE_SHARE_READ | FILE_SHARE_WRITE,
2154 NULL, OPEN_EXISTING, 0, 0 );
2155 if (handle == INVALID_HANDLE_VALUE)
2158 status = GetFileTime( handle, NULL, &filetime, NULL );
2161 FileTimeToDosDateTime( &filetime, &date, NULL );
2162 SET_DI( context, date );
2165 CloseHandle( handle );
2170 case 0x07: /* SET FILE CREATION DATE AND TIME */
2172 INT_BARF( context, 0x21 );
2175 TRACE( "SET FILE CREATION DATE AND TIME, file %s\n", fileA );
2177 handle = CreateFileW( fileW, GENERIC_WRITE,
2178 FILE_SHARE_READ | FILE_SHARE_WRITE,
2179 NULL, OPEN_EXISTING, 0, 0 );
2180 if (handle == INVALID_HANDLE_VALUE)
2184 * FIXME: SI has number of 10-millisecond units past time in CX.
2186 DosDateTimeToFileTime( DI_reg(context),
2189 status = SetFileTime( handle, &filetime, NULL, NULL );
2191 CloseHandle( handle );
2196 case 0x08: /* GET FILE CREATION DATE AND TIME */
2198 INT_BARF( context, 0x21 );
2201 TRACE( "GET FILE CREATION DATE AND TIME, handle %d\n",
2204 handle = CreateFileW( fileW, GENERIC_READ,
2205 FILE_SHARE_READ | FILE_SHARE_WRITE,
2206 NULL, OPEN_EXISTING, 0, 0 );
2207 if (handle == INVALID_HANDLE_VALUE)
2210 status = GetFileTime( handle, &filetime, NULL, NULL );
2213 FileTimeToDosDateTime( &filetime, &date, &time );
2214 SET_DI( context, date );
2215 SET_CX( context, time );
2217 * FIXME: SI has number of 10-millisecond units past
2220 SET_SI( context, 0 );
2223 CloseHandle(handle);
2228 case 0xff: /* EXTENDED-LENGTH FILENAME OPERATIONS */
2229 if (islong || context->Ebp != 0x5053)
2230 INT_BARF( context, 0x21 );
2233 switch(CL_reg(context))
2236 if (!INT21_CreateDirectory( context ))
2241 if (!INT21_RenameFile( context ))
2246 INT_BARF( context, 0x21 );
2252 INT_BARF( context, 0x21 );
2259 /***********************************************************************
2260 * INT21_FileDateTime
2262 * Handler for function 0x57.
2264 static BOOL INT21_FileDateTime( CONTEXT86 *context )
2266 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
2270 switch (AL_reg(context)) {
2271 case 0x00: /* Get last-written stamp */
2272 TRACE( "GET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
2275 if (!GetFileTime( handle, NULL, NULL, &filetime ))
2277 FileTimeToDosDateTime( &filetime, &date, &time );
2278 SET_DX( context, date );
2279 SET_CX( context, time );
2283 case 0x01: /* Set last-written stamp */
2284 TRACE( "SET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
2287 DosDateTimeToFileTime( DX_reg(context),
2290 if (!SetFileTime( handle, NULL, NULL, &filetime ))
2295 case 0x04: /* Get last access stamp, DOS 7 */
2296 TRACE( "GET FILE LAST ACCESS DATE AND TIME, handle %d\n",
2299 if (!GetFileTime( handle, NULL, &filetime, NULL ))
2301 FileTimeToDosDateTime( &filetime, &date, &time );
2302 SET_DX( context, date );
2303 SET_CX( context, time );
2307 case 0x05: /* Set last access stamp, DOS 7 */
2308 TRACE( "SET FILE LAST ACCESS DATE AND TIME, handle %d\n",
2311 DosDateTimeToFileTime( DX_reg(context),
2314 if (!SetFileTime( handle, NULL, &filetime, NULL ))
2319 case 0x06: /* Get creation stamp, DOS 7 */
2320 TRACE( "GET FILE CREATION DATE AND TIME, handle %d\n",
2323 if (!GetFileTime( handle, &filetime, NULL, NULL ))
2325 FileTimeToDosDateTime( &filetime, &date, &time );
2326 SET_DX( context, date );
2327 SET_CX( context, time );
2329 * FIXME: SI has number of 10-millisecond units past time in CX.
2331 SET_SI( context, 0 );
2335 case 0x07: /* Set creation stamp, DOS 7 */
2336 TRACE( "SET FILE CREATION DATE AND TIME, handle %d\n",
2340 * FIXME: SI has number of 10-millisecond units past time in CX.
2342 DosDateTimeToFileTime( DX_reg(context),
2345 if (!SetFileTime( handle, &filetime, NULL, NULL ))
2351 INT_BARF( context, 0x21 );
2359 /***********************************************************************
2362 * Handler for functions 0x51 and 0x62.
2364 static void INT21_GetPSP( CONTEXT86 *context )
2366 TRACE( "GET CURRENT PSP ADDRESS (%02x)\n", AH_reg(context) );
2369 * FIXME: should we return the original DOS PSP upon
2372 if (!ISV86(context) && DOSVM_IsWin16())
2373 SET_BX( context, LOWORD(GetCurrentPDB16()) );
2375 SET_BX( context, DOSVM_psp );
2378 static inline void setword( BYTE *ptr, WORD w )
2381 ptr[1] = (BYTE)(w >> 8);
2384 static void CreateBPB(int drive, BYTE *data, BOOL16 limited)
2385 /* limited == TRUE is used with INT 0x21/0x440d */
2387 /* FIXME: we're forcing some values without checking that those are valid */
2392 setword(&data[3], 0);
2394 setword(&data[6], 240);
2395 setword(&data[8], 64000);
2397 setword(&data[0x0b], 40);
2398 setword(&data[0x0d], 56);
2399 setword(&data[0x0f], 2);
2400 setword(&data[0x11], 0);
2403 setword(&data[0x1f], 800);
2405 setword(&data[0x22], 1);
2412 setword(&data[3], 0);
2414 setword(&data[6], 240);
2415 setword(&data[8], 2880);
2417 setword(&data[0x0b], 6);
2418 setword(&data[0x0d], 18);
2419 setword(&data[0x0f], 2);
2420 setword(&data[0x11], 0);
2423 setword(&data[0x1f], 80);
2425 setword(&data[0x22], 2);
2430 static inline DWORD INT21_Ioctl_CylHeadSect2Lin(DWORD cyl, WORD head, WORD sec, WORD cyl_cnt,
2431 WORD head_cnt, WORD sec_cnt)
2433 DWORD res = (cyl * head_cnt*sec_cnt + head * sec_cnt + sec);
2437 /***********************************************************************
2440 * Handler for block device IOCTLs.
2442 static void INT21_Ioctl_Block( CONTEXT86 *context )
2445 BYTE drive = INT21_MapDrive( BL_reg(context) );
2446 WCHAR drivespec[4] = {'A', ':', '\\', 0};
2449 drivespec[0] += drive;
2450 drivetype = GetDriveTypeW( drivespec );
2452 RESET_CFLAG(context);
2453 if (drivetype == DRIVE_UNKNOWN || drivetype == DRIVE_NO_ROOT_DIR)
2455 TRACE( "IOCTL - SUBFUNCTION %d - INVALID DRIVE %c:\n",
2456 AL_reg(context), 'A' + drive );
2457 SetLastError( ERROR_INVALID_DRIVE );
2458 SET_AX( context, ERROR_INVALID_DRIVE );
2459 SET_CFLAG( context );
2463 switch (AL_reg(context))
2465 case 0x04: /* READ FROM BLOCK DEVICE CONTROL CHANNEL */
2466 case 0x05: /* WRITE TO BLOCK DEVICE CONTROL CHANNEL */
2467 INT_BARF( context, 0x21 );
2470 case 0x08: /* CHECK IF BLOCK DEVICE REMOVABLE */
2471 TRACE( "IOCTL - CHECK IF BLOCK DEVICE REMOVABLE - %c:\n",
2474 if (drivetype == DRIVE_REMOVABLE)
2475 SET_AX( context, 0 ); /* removable */
2477 SET_AX( context, 1 ); /* not removable */
2480 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
2481 TRACE( "IOCTL - CHECK IF BLOCK DEVICE REMOTE - %c:\n",
2484 if (drivetype == DRIVE_REMOTE)
2485 SET_DX( context, (1<<9) | (1<<12) ); /* remote + no direct IO */
2487 SET_DX( context, 0 ); /* FIXME: use driver attr here */
2490 case 0x0d: /* GENERIC BLOCK DEVICE REQUEST */
2491 /* Get pointer to IOCTL parameter block */
2492 dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2494 switch (CX_reg(context))
2496 case 0x0841: /* write logical device track */
2497 TRACE( "GENERIC IOCTL - Write logical device track - %c:\n",
2500 WORD head = *(WORD *)(dataptr+1);
2501 WORD cyl = *(WORD *)(dataptr+3);
2502 WORD sect = *(WORD *)(dataptr+5);
2503 WORD nrsect = *(WORD *)(dataptr+7);
2504 BYTE *data = CTX_SEG_OFF_TO_LIN(context, *(WORD *)(dataptr+11), *(WORD *)(dataptr+9));
2505 WORD cyl_cnt, head_cnt, sec_cnt;
2507 /* FIXME: we're faking some values here */
2513 SET_AX( context, ERROR_WRITE_FAULT );
2524 if (!DOSVM_RawWrite(drive, INT21_Ioctl_CylHeadSect2Lin(cyl, head, sect, cyl_cnt, head_cnt, sec_cnt), nrsect, data, FALSE))
2526 SET_AX( context, ERROR_WRITE_FAULT );
2532 case 0x084a: /* lock logical volume */
2533 TRACE( "GENERIC IOCTL - Lock logical volume, level %d mode %d - %c:\n",
2534 BH_reg(context), DX_reg(context), 'A' + drive );
2537 case 0x0860: /* get device parameters */
2538 /* FIXME: we're faking some values here */
2539 /* used by w4wgrp's winfile */
2540 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
2542 dataptr[6] = 0; /* media type */
2545 dataptr[1] = 0x05; /* fixed disk */
2546 setword(&dataptr[2], 0x01); /* non removable */
2547 setword(&dataptr[4], 0x300); /* # of cylinders */
2551 dataptr[1] = 0x07; /* block dev, floppy */
2552 setword(&dataptr[2], 0x02); /* removable */
2553 setword(&dataptr[4], 80); /* # of cylinders */
2555 CreateBPB(drive, &dataptr[7], TRUE);
2556 RESET_CFLAG(context);
2559 case 0x0861: /* read logical device track */
2560 TRACE( "GENERIC IOCTL - Read logical device track - %c:\n",
2563 WORD head = *(WORD *)(dataptr+1);
2564 WORD cyl = *(WORD *)(dataptr+3);
2565 WORD sect = *(WORD *)(dataptr+5);
2566 WORD nrsect = *(WORD *)(dataptr+7);
2567 BYTE *data = CTX_SEG_OFF_TO_LIN(context, *(WORD *)(dataptr+11), *(WORD *)(dataptr+9));
2568 WORD cyl_cnt, head_cnt, sec_cnt;
2570 /* FIXME: we're faking some values here */
2584 if (!DOSVM_RawRead(drive, INT21_Ioctl_CylHeadSect2Lin(cyl, head, sect, cyl_cnt, head_cnt, sec_cnt), nrsect, data, FALSE))
2586 SET_AX( context, ERROR_READ_FAULT );
2592 case 0x0866: /* get volume serial number */
2594 WCHAR label[12],fsname[9];
2597 drivespec[0] += drive;
2598 GetVolumeInformationW(drivespec, label, 12, &serial, NULL, NULL, fsname, 9);
2599 *(WORD*)dataptr = 0;
2600 memcpy(dataptr+2,&serial,4);
2601 WideCharToMultiByte(CP_OEMCP, 0, label, 11, (LPSTR)dataptr + 6, 11, NULL, NULL);
2602 WideCharToMultiByte(CP_OEMCP, 0, fsname, 8, (LPSTR)dataptr + 17, 8, NULL, NULL);
2606 case 0x086a: /* unlock logical volume */
2607 TRACE( "GENERIC IOCTL - Logical volume unlocked - %c:\n",
2611 case 0x086f: /* get drive map information */
2612 memset(dataptr+1, '\0', dataptr[0]-1);
2613 dataptr[1] = dataptr[0];
2614 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
2615 dataptr[3] = 0xFF; /* no physical drive */
2619 /* Trial and error implementation */
2620 SET_AX( context, drivetype == DRIVE_UNKNOWN ? 0x0f : 0x01 );
2621 SET_CFLAG(context); /* Seems to be set all the time */
2625 INT_BARF( context, 0x21 );
2629 case 0x0e: /* GET LOGICAL DRIVE MAP */
2630 TRACE( "IOCTL - GET LOGICAL DRIVE MAP - %c:\n",
2632 /* FIXME: this is not correct if drive has mappings */
2633 SET_AL( context, 0 ); /* drive has no mapping */
2636 case 0x0f: /* SET LOGICAL DRIVE MAP */
2637 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
2638 INT21_DriveName( BL_reg(context)));
2639 /* FIXME: as of today, we don't support logical drive mapping... */
2640 SET_AL( context, 0 );
2643 case 0x11: /* QUERY GENERIC IOCTL CAPABILITY */
2645 INT_BARF( context, 0x21 );
2650 /***********************************************************************
2651 * INT21_IoctlScsiMgrHandler
2653 * IOCTL handler for the SCSIMGR device.
2655 static void INT21_IoctlScsiMgrHandler( CONTEXT86 *context )
2657 switch (AL_reg(context))
2659 case 0x00: /* GET DEVICE INFORMATION */
2660 SET_DX( context, 0xc0c0 );
2663 case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
2664 DOSVM_ASPIHandler(context);
2667 case 0x0a: /* CHECK IF HANDLE IS REMOTE */
2668 SET_DX( context, 0 );
2671 case 0x01: /* SET DEVICE INFORMATION */
2672 case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
2673 case 0x06: /* GET INPUT STATUS */
2674 case 0x07: /* GET OUTPUT STATUS */
2675 case 0x0c: /* GENERIC CHARACTER DEVICE REQUEST */
2676 case 0x10: /* QUERY GENERIC IOCTL CAPABILITY */
2678 INT_BARF( context, 0x21 );
2684 /***********************************************************************
2685 * INT21_IoctlEMSHandler
2687 * IOCTL handler for the EMXXXX0 device.
2689 static void INT21_IoctlEMSHandler( CONTEXT86 *context )
2691 EMS_Ioctl_Handler(context);
2695 /***********************************************************************
2696 * INT21_IoctlHPScanHandler
2698 * IOCTL handler for the HPSCAN device.
2700 static void INT21_IoctlHPScanHandler( CONTEXT86 *context )
2702 switch (AL_reg(context))
2704 case 0x00: /* GET DEVICE INFORMATION */
2705 SET_DX( context, 0xc0c0 );
2708 case 0x0a: /* CHECK IF HANDLE IS REMOTE */
2709 SET_DX( context, 0 );
2712 case 0x01: /* SET DEVICE INFORMATION */
2713 case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
2714 case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
2715 case 0x06: /* GET INPUT STATUS */
2716 case 0x07: /* GET OUTPUT STATUS */
2717 case 0x0c: /* GENERIC CHARACTER DEVICE REQUEST */
2718 case 0x10: /* QUERY GENERIC IOCTL CAPABILITY */
2720 INT_BARF( context, 0x21 );
2726 /***********************************************************************
2729 * Handler for character device IOCTLs.
2731 static void INT21_Ioctl_Char( CONTEXT86 *context )
2734 int IsConsoleIOHandle = 0;
2736 FILE_INTERNAL_INFORMATION info;
2737 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
2739 status = NtQueryInformationFile( handle, &io, &info, sizeof(info), FileInternalInformation );
2742 if( VerifyConsoleIoHandle( handle))
2743 IsConsoleIOHandle = 1;
2745 SET_AX( context, RtlNtStatusToDosError(status) );
2746 SET_CFLAG( context );
2750 for (i = 0; i < NB_MAGIC_DEVICES; i++)
2752 if (!magic_devices[i].handle) continue;
2753 if (magic_devices[i].index.QuadPart == info.IndexNumber.QuadPart)
2756 magic_devices[i].ioctl_handler( context );
2762 /* no magic device found, do default handling */
2764 switch (AL_reg(context))
2766 case 0x00: /* GET DEVICE INFORMATION */
2767 TRACE( "IOCTL - GET DEVICE INFORMATION - %d\n", BX_reg(context) );
2768 if (IsConsoleIOHandle || GetFileType(handle) == FILE_TYPE_CHAR)
2771 * Returns attribute word in DX:
2772 * Bit 14 - Device driver can process IOCTL requests.
2773 * Bit 13 - Output until busy supported.
2774 * Bit 11 - Driver supports OPEN/CLOSE calls.
2776 * Bit 7 - Set (indicates device).
2777 * Bit 6 - EOF on input.
2778 * Bit 5 - Raw (binary) mode.
2779 * Bit 4 - Device is special (uses int29).
2780 * Bit 3 - Clock device.
2781 * Bit 2 - NUL device.
2782 * Bit 1 - Console output device.
2783 * Bit 0 - Console input device.
2785 SET_DX( context, IsConsoleIOHandle ? 0x80c3 : 0x80c0 /* FIXME */ );
2790 * Returns attribute word in DX:
2791 * Bit 15 - File is remote.
2792 * Bit 14 - Don't set file date/time on closing.
2793 * Bit 11 - Media not removable.
2794 * Bit 8 - Generate int24 if no disk space on write
2795 * or read past end of file
2796 * Bit 7 - Clear (indicates file).
2797 * Bit 6 - File has not been written.
2798 * Bit 5..0 - Drive number (0=A:,...)
2800 * FIXME: Should check if file is on remote or removable drive.
2801 * FIXME: Should use drive file is located on (and not current).
2803 SET_DX( context, 0x0140 + INT21_GetCurrentDrive() );
2807 case 0x0a: /* CHECK IF HANDLE IS REMOTE */
2808 TRACE( "IOCTL - CHECK IF HANDLE IS REMOTE - %d\n", BX_reg(context) );
2810 * Returns attribute word in DX:
2811 * Bit 15 - Set if remote.
2812 * Bit 14 - Set if date/time not set on close.
2814 * FIXME: Should check if file is on remote drive.
2816 SET_DX( context, 0 );
2819 case 0x01: /* SET DEVICE INFORMATION */
2820 case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
2821 case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
2822 case 0x06: /* GET INPUT STATUS */
2823 case 0x07: /* GET OUTPUT STATUS */
2824 case 0x0c: /* GENERIC CHARACTER DEVICE REQUEST */
2825 case 0x10: /* QUERY GENERIC IOCTL CAPABILITY */
2827 INT_BARF( context, 0x21 );
2833 /***********************************************************************
2836 * Handler for function 0x44.
2838 static void INT21_Ioctl( CONTEXT86 *context )
2840 switch (AL_reg(context))
2846 INT21_Ioctl_Char( context );
2851 INT21_Ioctl_Block( context );
2856 INT21_Ioctl_Char( context );
2861 INT21_Ioctl_Block( context );
2865 INT21_Ioctl_Char( context );
2868 case 0x0b: /* SET SHARING RETRY COUNT */
2869 TRACE( "SET SHARING RETRY COUNT: Pause %d, retries %d.\n",
2870 CX_reg(context), DX_reg(context) );
2871 if (!CX_reg(context))
2873 SET_AX( context, 1 );
2874 SET_CFLAG( context );
2878 DOSDEV_SetSharingRetry( CX_reg(context), DX_reg(context) );
2879 RESET_CFLAG( context );
2884 INT21_Ioctl_Char( context );
2890 INT21_Ioctl_Block( context );
2894 INT21_Ioctl_Char( context );
2898 INT21_Ioctl_Block( context );
2901 case 0x12: /* DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION) */
2902 TRACE( "DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION)\n" );
2903 SET_CFLAG(context); /* Error / This is not DR DOS. */
2904 SET_AX( context, 0x0001 ); /* Invalid function */
2907 case 0x52: /* DR DOS - DETERMINE DOS TYPE */
2908 TRACE( "DR DOS - DETERMINE DOS TYPE\n" );
2909 SET_CFLAG(context); /* Error / This is not DR DOS. */
2910 SET_AX( context, 0x0001 ); /* Invalid function */
2913 case 0xe0: /* Sun PC-NFS API */
2914 TRACE( "Sun PC-NFS API\n" );
2919 INT_BARF( context, 0x21 );
2924 /***********************************************************************
2927 * Handler for function 0x73.
2929 static BOOL INT21_Fat32( CONTEXT86 *context )
2931 switch (AL_reg(context))
2933 case 0x02: /* FAT32 - GET EXTENDED DPB */
2935 BYTE drive = INT21_MapDrive( DL_reg(context) );
2936 WORD *ptr = CTX_SEG_OFF_TO_LIN(context,
2937 context->SegEs, context->Edi);
2938 INT21_DPB *target = (INT21_DPB*)(ptr + 1);
2941 TRACE( "FAT32 - GET EXTENDED DPB %d\n", DL_reg(context) );
2943 if ( CX_reg(context) < sizeof(INT21_DPB) + 2 || *ptr < sizeof(INT21_DPB) )
2945 SetLastError( ERROR_BAD_LENGTH );
2949 if ( !INT21_FillDrivePB( drive ) )
2951 SetLastError( ERROR_INVALID_DRIVE );
2955 source = &INT21_GetHeapPointer()->misc_dpb_list[drive];
2957 *ptr = sizeof(INT21_DPB);
2958 memcpy( target, source, sizeof(INT21_DPB));
2960 if (LOWORD(context->Esi) != 0xF1A6)
2962 target->driver_header = 0;
2967 FIXME( "Caller requested driver and next DPB pointers!\n" );
2972 case 0x03: /* FAT32 - GET EXTENDED FREE SPACE ON DRIVE */
2974 WCHAR dirW[MAX_PATH];
2975 char *dirA = CTX_SEG_OFF_TO_LIN( context,
2976 context->SegDs, context->Edx );
2977 BYTE *data = CTX_SEG_OFF_TO_LIN( context,
2978 context->SegEs, context->Edi );
2979 DWORD cluster_sectors;
2981 DWORD free_clusters;
2982 DWORD total_clusters;
2984 TRACE( "FAT32 - GET EXTENDED FREE SPACE ON DRIVE %s\n", dirA );
2985 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
2987 if (CX_reg(context) < 44)
2989 SetLastError( ERROR_BAD_LENGTH );
2993 if (!GetDiskFreeSpaceW( dirW, &cluster_sectors, §or_bytes,
2994 &free_clusters, &total_clusters ))
2997 *(WORD*) (data + 0) = 44; /* size of structure */
2998 *(WORD*) (data + 2) = 0; /* version */
2999 *(DWORD*)(data + 4) = cluster_sectors;
3000 *(DWORD*)(data + 8) = sector_bytes;
3001 *(DWORD*)(data + 12) = free_clusters;
3002 *(DWORD*)(data + 16) = total_clusters;
3005 * Below we have free/total sectors and
3006 * free/total allocation units without adjustment
3007 * for compression. We fake both using cluster information.
3009 *(DWORD*)(data + 20) = free_clusters * cluster_sectors;
3010 *(DWORD*)(data + 24) = total_clusters * cluster_sectors;
3011 *(DWORD*)(data + 28) = free_clusters;
3012 *(DWORD*)(data + 32) = total_clusters;
3015 * Between (data + 36) and (data + 43) there
3016 * are eight reserved bytes.
3022 INT_BARF( context, 0x21 );
3028 static void INT21_ConvertFindDataWtoA(WIN32_FIND_DATAA *dataA,
3029 const WIN32_FIND_DATAW *dataW)
3031 dataA->dwFileAttributes = dataW->dwFileAttributes;
3032 dataA->ftCreationTime = dataW->ftCreationTime;
3033 dataA->ftLastAccessTime = dataW->ftLastAccessTime;
3034 dataA->ftLastWriteTime = dataW->ftLastWriteTime;
3035 dataA->nFileSizeHigh = dataW->nFileSizeHigh;
3036 dataA->nFileSizeLow = dataW->nFileSizeLow;
3037 WideCharToMultiByte( CP_OEMCP, 0, dataW->cFileName, -1,
3038 dataA->cFileName, sizeof(dataA->cFileName), NULL, NULL );
3039 WideCharToMultiByte( CP_OEMCP, 0, dataW->cAlternateFileName, -1,
3040 dataA->cAlternateFileName, sizeof(dataA->cAlternateFileName), NULL, NULL );
3043 /***********************************************************************
3044 * INT21_LongFilename
3046 * Handler for function 0x71.
3048 static void INT21_LongFilename( CONTEXT86 *context )
3050 BOOL bSetDOSExtendedError = FALSE;
3051 WCHAR pathW[MAX_PATH];
3054 if (HIBYTE(HIWORD(GetVersion16())) < 0x07)
3056 TRACE( "LONG FILENAME - functions supported only under DOS7\n" );
3057 SET_CFLAG( context );
3058 SET_AL( context, 0 );
3062 switch (AL_reg(context))
3064 case 0x0d: /* RESET DRIVE */
3065 INT_BARF( context, 0x21 );
3068 case 0x39: /* LONG FILENAME - MAKE DIRECTORY */
3069 if (!INT21_CreateDirectory( context ))
3070 bSetDOSExtendedError = TRUE;
3073 case 0x3a: /* LONG FILENAME - REMOVE DIRECTORY */
3074 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3076 TRACE( "LONG FILENAME - REMOVE DIRECTORY %s\n", pathA);
3077 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3078 if (!RemoveDirectoryW( pathW )) bSetDOSExtendedError = TRUE;
3081 case 0x3b: /* LONG FILENAME - CHANGE DIRECTORY */
3082 if (!INT21_SetCurrentDirectory( context ))
3083 bSetDOSExtendedError = TRUE;
3086 case 0x41: /* LONG FILENAME - DELETE FILE */
3087 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3089 TRACE( "LONG FILENAME - DELETE FILE %s\n", pathA );
3090 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3092 if (!DeleteFileW( pathW )) bSetDOSExtendedError = TRUE;
3095 case 0x43: /* LONG FILENAME - EXTENDED GET/SET FILE ATTRIBUTES */
3096 if (!INT21_FileAttributes( context, BL_reg(context), TRUE ))
3097 bSetDOSExtendedError = TRUE;
3100 case 0x47: /* LONG FILENAME - GET CURRENT DIRECTORY */
3101 if (!INT21_GetCurrentDirectory( context, TRUE ))
3102 bSetDOSExtendedError = TRUE;
3105 case 0x4e: /* LONG FILENAME - FIND FIRST MATCHING FILE */
3109 WIN32_FIND_DATAW dataW;
3110 WIN32_FIND_DATAA* dataA;
3112 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
3113 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n", pathA);
3115 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3116 handle = FindFirstFileW(pathW, &dataW);
3118 dataA = (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
3120 if (handle != INVALID_HANDLE_VALUE &&
3121 (h16 = GlobalAlloc16(GMEM_MOVEABLE, sizeof(handle))))
3123 HANDLE* ptr = GlobalLock16( h16 );
3125 GlobalUnlock16( h16 );
3126 SET_AX( context, h16 );
3127 INT21_ConvertFindDataWtoA(dataA, &dataW);
3131 if (handle != INVALID_HANDLE_VALUE) FindClose(handle);
3132 SET_AX( context, INVALID_HANDLE_VALUE16);
3133 bSetDOSExtendedError = TRUE;
3138 case 0x4f: /* LONG FILENAME - FIND NEXT MATCHING FILE */
3140 HGLOBAL16 h16 = BX_reg(context);
3142 WIN32_FIND_DATAW dataW;
3143 WIN32_FIND_DATAA* dataA;
3145 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
3148 dataA = (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
3151 if (h16 != INVALID_HANDLE_VALUE16 && (ptr = GlobalLock16( h16 )))
3153 if (!FindNextFileW(*ptr, &dataW)) bSetDOSExtendedError = TRUE;
3154 else INT21_ConvertFindDataWtoA(dataA, &dataW);
3155 GlobalUnlock16( h16 );
3159 SetLastError( ERROR_INVALID_HANDLE );
3160 bSetDOSExtendedError = TRUE;
3165 case 0x56: /* LONG FILENAME - RENAME FILE */
3166 if (!INT21_RenameFile(context))
3167 bSetDOSExtendedError = TRUE;
3170 case 0x60: /* LONG FILENAME - CONVERT PATH */
3172 WCHAR res[MAX_PATH];
3174 switch (CL_reg(context))
3176 case 0x00: /* "truename" - Canonicalize path */
3178 * FIXME: This is not 100% equal to 0x01 case,
3179 * if you fix this, fix int21 subfunction 0x60, too.
3182 case 0x01: /* Get short filename or path */
3183 MultiByteToWideChar(CP_OEMCP, 0, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi), -1, pathW, MAX_PATH);
3184 if (!GetShortPathNameW(pathW, res, 67))
3185 bSetDOSExtendedError = TRUE;
3188 SET_AX( context, 0 );
3189 WideCharToMultiByte(CP_OEMCP, 0, res, -1,
3190 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
3195 case 0x02: /* Get canonical long filename or path */
3196 MultiByteToWideChar(CP_OEMCP, 0, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi), -1, pathW, MAX_PATH);
3197 if (!GetFullPathNameW(pathW, 128, res, NULL))
3198 bSetDOSExtendedError = TRUE;
3201 SET_AX( context, 0 );
3202 WideCharToMultiByte(CP_OEMCP, 0, res, -1,
3203 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
3208 FIXME("Unimplemented long file name function:\n");
3209 INT_BARF( context, 0x21 );
3211 SET_AL( context, 0 );
3217 case 0x6c: /* LONG FILENAME - CREATE OR OPEN FILE */
3218 if (!INT21_CreateFile( context, context->Esi, TRUE,
3219 BX_reg(context), DL_reg(context) ))
3220 bSetDOSExtendedError = TRUE;
3223 case 0xa0: /* LONG FILENAME - GET VOLUME INFORMATION */
3225 DWORD filename_len, flags;
3228 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
3230 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", pathA);
3231 SET_AX( context, 0 );
3232 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3233 if (!GetVolumeInformationW( pathW, NULL, 0, NULL, &filename_len,
3236 INT_BARF( context, 0x21 );
3240 SET_BX( context, flags | 0x4000 ); /* support for LFN functions */
3241 SET_CX( context, filename_len );
3242 SET_DX( context, MAX_PATH ); /* FIXME: which len if DRIVE_SHORT_NAMES ? */
3243 WideCharToMultiByte(CP_OEMCP, 0, dstW, -1,
3244 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
3249 case 0xa1: /* LONG FILENAME - "FindClose" - TERMINATE DIRECTORY SEARCH */
3251 HGLOBAL16 h16 = BX_reg(context);
3254 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
3256 if (h16 != INVALID_HANDLE_VALUE16 && (ptr = GlobalLock16( h16 )))
3258 if (!FindClose( *ptr )) bSetDOSExtendedError = TRUE;
3259 GlobalUnlock16( h16 );
3260 GlobalFree16( h16 );
3264 SetLastError( ERROR_INVALID_HANDLE );
3265 bSetDOSExtendedError = TRUE;
3270 case 0xa6: /* LONG FILENAME - GET FILE INFO BY HANDLE */
3272 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
3273 BY_HANDLE_FILE_INFORMATION *info =
3274 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3276 TRACE( "LONG FILENAME - GET FILE INFO BY HANDLE\n" );
3278 if (!GetFileInformationByHandle(handle, info))
3279 bSetDOSExtendedError = TRUE;
3283 case 0xa7: /* LONG FILENAME - CONVERT TIME */
3284 switch (BL_reg(context))
3286 case 0x00: /* FILE TIME TO DOS TIME */
3289 FILETIME *filetime = CTX_SEG_OFF_TO_LIN(context,
3293 TRACE( "LONG FILENAME - FILE TIME TO DOS TIME\n" );
3295 FileTimeToDosDateTime( filetime, &date, &time );
3297 SET_DX( context, date );
3298 SET_CX( context, time );
3301 * FIXME: BH has number of 10-millisecond units
3304 SET_BH( context, 0 );
3308 case 0x01: /* DOS TIME TO FILE TIME */
3310 FILETIME *filetime = CTX_SEG_OFF_TO_LIN(context,
3314 TRACE( "LONG FILENAME - DOS TIME TO FILE TIME\n" );
3317 * FIXME: BH has number of 10-millisecond units
3320 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
3326 INT_BARF( context, 0x21 );
3331 case 0xa8: /* LONG FILENAME - GENERATE SHORT FILENAME */
3332 case 0xa9: /* LONG FILENAME - SERVER CREATE OR OPEN FILE */
3333 case 0xaa: /* LONG FILENAME - SUBST */
3335 FIXME("Unimplemented long file name function:\n");
3336 INT_BARF( context, 0x21 );
3338 SET_AL( context, 0 );
3342 if (bSetDOSExtendedError)
3344 SET_AX( context, GetLastError() );
3345 SET_CFLAG( context );
3350 /***********************************************************************
3355 * - subfunction 0x56 of function 0x71
3356 * - subfunction 0xff of function 0x43 (CL == 0x56)
3358 static BOOL INT21_RenameFile( CONTEXT86 *context )
3360 WCHAR fromW[MAX_PATH];
3361 WCHAR toW[MAX_PATH];
3362 char *fromA = CTX_SEG_OFF_TO_LIN(context,
3363 context->SegDs,context->Edx);
3364 char *toA = CTX_SEG_OFF_TO_LIN(context,
3365 context->SegEs,context->Edi);
3367 TRACE( "RENAME FILE %s to %s\n", fromA, toA );
3368 MultiByteToWideChar(CP_OEMCP, 0, fromA, -1, fromW, MAX_PATH);
3369 MultiByteToWideChar(CP_OEMCP, 0, toA, -1, toW, MAX_PATH);
3371 return MoveFileW( fromW, toW );
3375 /***********************************************************************
3381 static BOOL INT21_NetworkFunc (CONTEXT86 *context)
3383 switch (AL_reg(context))
3385 case 0x00: /* Get machine name. */
3387 WCHAR dstW[MAX_COMPUTERNAME_LENGTH + 1];
3388 DWORD s = sizeof(dstW) / sizeof(WCHAR);
3391 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
3392 TRACE("getting machine name to %p\n", dst);
3393 if (!GetComputerNameW(dstW, &s) ||
3394 !WideCharToMultiByte(CP_OEMCP, 0, dstW, -1, dst, 16, NULL, NULL))
3397 SetLastError( ER_NoNetwork );
3400 for (len = strlen(dst); len < 15; len++) dst[len] = ' ';
3402 SET_CH( context, 1 ); /* Valid */
3403 SET_CL( context, 1 ); /* NETbios number??? */
3404 TRACE("returning %s\n", debugstr_an(dst, 16));
3409 SetLastError( ER_NoNetwork );
3414 /******************************************************************
3415 * INT21_GetDiskSerialNumber
3418 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
3420 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3421 WCHAR path[] = {'A',':',0}, label[11];
3424 path[0] += INT21_MapDrive(BL_reg(context));
3425 if (!GetVolumeInformationW( path, label, 11, &serial, NULL, NULL, NULL, 0))
3427 SetLastError( ERROR_INVALID_DRIVE );
3431 *(WORD *)dataptr = 0;
3432 memcpy(dataptr + 2, &serial, sizeof(DWORD));
3433 WideCharToMultiByte(CP_OEMCP, 0, label, 11, (LPSTR)dataptr + 6, 11, NULL, NULL);
3434 memcpy(dataptr + 17, "FAT16 ", 8);
3439 /******************************************************************
3440 * INT21_SetDiskSerialNumber
3443 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
3446 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3447 int drive = INT21_MapDrive(BL_reg(context));
3449 if (!is_valid_drive(drive))
3451 SetLastError( ERROR_INVALID_DRIVE );
3455 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
3458 FIXME("Setting drive serial number is no longer supported\n");
3459 SetLastError( ERROR_NOT_SUPPORTED );
3465 /******************************************************************
3466 * INT21_GetFreeDiskSpace
3469 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
3471 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
3472 WCHAR root[] = {'A',':','\\',0};
3473 const DWORD max_clusters = 0x3d83;
3474 const DWORD max_sectors_per_cluster = 0x7f;
3475 const DWORD max_bytes_per_sector = 0x200;
3477 root[0] += INT21_MapDrive(DL_reg(context));
3478 if (!GetDiskFreeSpaceW( root, &cluster_sectors, §or_bytes,
3479 &free_clusters, &total_clusters )) return 0;
3481 /* Some old win31 apps (Lotus SmartSuite 5.1) crap out if there's too
3482 * much disk space, so Windows XP seems to apply the following limits:
3483 * cluster_sectors <= 0x7f
3484 * sector size <= 0x200
3485 * clusters <= 0x3D83
3486 * This means total reported space is limited to about 1GB.
3489 /* Make sure bytes-per-sector is in [, max] */
3490 while (sector_bytes > max_bytes_per_sector) {
3492 free_clusters <<= 1;
3493 total_clusters <<= 1;
3495 /* Then make sure sectors-per-cluster is in [max/2, max]. */
3496 while (cluster_sectors <= max_sectors_per_cluster/2) {
3497 cluster_sectors <<= 1;
3498 free_clusters >>= 1;
3499 total_clusters >>= 1;
3501 while (cluster_sectors > max_sectors_per_cluster) {
3502 cluster_sectors >>= 1;
3503 free_clusters <<= 1;
3504 total_clusters <<= 1;
3507 /* scale up sectors_per_cluster to exactly max_sectors_per_cluster.
3508 * We could skip this, but that would impose an artificially low
3509 * limit on reported disk space.
3510 * To avoid overflow, first apply a preliminary cap on sector count;
3511 * this will not affect the correctness of the final result,
3512 * because if the preliminary cap hits, the final one will, too.
3514 if (total_clusters > 4 * max_clusters)
3515 total_clusters = 4 * max_clusters;
3516 if (free_clusters > 4 * max_clusters)
3517 free_clusters = 4 * max_clusters;
3518 if (cluster_sectors < max_sectors_per_cluster) {
3519 free_clusters *= cluster_sectors;
3520 free_clusters /= max_sectors_per_cluster;
3521 total_clusters *= cluster_sectors;
3522 total_clusters /= max_sectors_per_cluster;
3523 cluster_sectors = max_sectors_per_cluster;
3526 /* Finally, apply real cluster count cap. */
3527 if (total_clusters > max_clusters)
3528 total_clusters = max_clusters;
3529 if (free_clusters > max_clusters)
3530 free_clusters = max_clusters;
3532 SET_AX( context, cluster_sectors );
3533 SET_BX( context, free_clusters );
3534 SET_CX( context, sector_bytes );
3535 SET_DX( context, total_clusters );
3539 /******************************************************************
3540 * INT21_GetDriveAllocInfo
3543 static int INT21_GetDriveAllocInfo( CONTEXT86 *context, BYTE drive )
3547 drive = INT21_MapDrive( drive );
3548 if (!INT21_FillDrivePB( drive )) return 0;
3549 dpb = &(INT21_GetHeapPointer()->misc_dpb_list[drive]);
3550 SET_AL( context, dpb->cluster_sectors + 1 );
3551 SET_CX( context, dpb->sector_bytes );
3552 SET_DX( context, dpb->num_clusters1 );
3554 context->SegDs = INT21_GetHeapSelector( context );
3555 SET_BX( context, offsetof( INT21_HEAP, misc_dpb_list[drive].media_ID ) );
3559 /***********************************************************************
3560 * INT21_GetExtendedError
3562 static void INT21_GetExtendedError( CONTEXT86 *context )
3564 BYTE class, action, locus;
3565 WORD error = GetLastError();
3570 class = action = locus = 0;
3572 case ERROR_DIR_NOT_EMPTY:
3577 case ERROR_ACCESS_DENIED:
3578 class = EC_AccessDenied;
3582 case ERROR_CANNOT_MAKE:
3583 class = EC_AccessDenied;
3587 case ERROR_DISK_FULL:
3588 case ERROR_HANDLE_DISK_FULL:
3589 class = EC_MediaError;
3593 case ERROR_FILE_EXISTS:
3594 case ERROR_ALREADY_EXISTS:
3599 case ERROR_FILE_NOT_FOUND:
3600 class = EC_NotFound;
3604 case ERROR_GEN_FAILURE:
3605 class = EC_SystemFailure;
3609 case ERROR_INVALID_DRIVE:
3610 class = EC_MediaError;
3614 case ERROR_INVALID_HANDLE:
3615 class = EC_ProgramError;
3619 case ERROR_LOCK_VIOLATION:
3620 class = EC_AccessDenied;
3624 case ERROR_NO_MORE_FILES:
3625 class = EC_MediaError;
3630 class = EC_NotFound;
3634 case ERROR_NOT_ENOUGH_MEMORY:
3635 class = EC_OutOfResource;
3639 case ERROR_PATH_NOT_FOUND:
3640 class = EC_NotFound;
3645 class = EC_NotFound;
3649 case ERROR_SHARING_VIOLATION:
3650 class = EC_Temporary;
3654 case ERROR_TOO_MANY_OPEN_FILES:
3655 class = EC_ProgramError;
3660 FIXME("Unknown error %d\n", error );
3661 class = EC_SystemFailure;
3666 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
3667 error, class, action, locus );
3668 SET_AX( context, error );
3669 SET_BH( context, class );
3670 SET_BL( context, action );
3671 SET_CH( context, locus );
3674 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
3676 static int counter = 0;
3677 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
3678 char *p = name + strlen(name);
3680 /* despite what Ralf Brown says, some programs seem to call without
3681 * ending backslash (DOS accepts that, so we accept it too) */
3682 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
3686 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
3687 counter = (counter + 1) % 1000;
3690 Win32HandleToDosFileHandle(
3691 CreateFileA( name, GENERIC_READ | GENERIC_WRITE,
3692 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
3693 CREATE_NEW, 0, 0 ) ) );
3694 if (AX_reg(context) != HFILE_ERROR16)
3696 TRACE("created %s\n", name );
3699 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
3703 /***********************************************************************
3704 * DOSFS_ToDosFCBFormat
3706 * Convert a file name to DOS FCB format (8+3 chars, padded with blanks),
3707 * expanding wild cards and converting to upper-case in the process.
3708 * File name can be terminated by '\0', '\\' or '/'.
3709 * Return FALSE if the name is not a valid DOS name.
3710 * 'buffer' must be at least 12 characters long.
3712 /* Chars we don't want to see in DOS file names */
3713 static BOOL INT21_ToDosFCBFormat( LPCWSTR name, LPWSTR buffer )
3715 static const WCHAR invalid_chars[] = {'*','?','<','>','|','\\','"','+','=',',',';','[',']',' ','\345',0};
3719 /* Check for "." and ".." */
3724 for(i = 1; i < 11; i++) buffer[i] = ' ';
3731 return (!*p || (*p == '/') || (*p == '\\'));
3734 for (i = 0; i < 8; i++)
3751 if (strchrW( invalid_chars, *p )) return FALSE;
3752 buffer[i] = toupperW(*p);
3760 /* Skip all chars after wildcard up to first dot */
3761 while (*p && (*p != '/') && (*p != '\\') && (*p != '.')) p++;
3765 /* Check if name too long */
3766 if (*p && (*p != '/') && (*p != '\\') && (*p != '.')) return FALSE;
3768 if (*p == '.') p++; /* Skip dot */
3770 for (i = 8; i < 11; i++)
3780 return FALSE; /* Second extension not allowed */
3788 if (strchrW( invalid_chars, *p )) return FALSE;
3789 buffer[i] = toupperW(*p);
3796 /* at most 3 character of the extension are processed
3797 * is something behind this ?
3799 while (*p == '*' || *p == ' ') p++; /* skip wildcards and spaces */
3800 return (!*p || (*p == '/') || (*p == '\\'));
3803 static HANDLE INT21_FindHandle;
3804 static const WCHAR *INT21_FindPath; /* will point to current dta->fullPath search */
3806 /******************************************************************
3809 static int INT21_FindFirst( CONTEXT86 *context )
3813 FINDFILE_DTA *dta = (FINDFILE_DTA *)INT21_GetCurrentDTA(context);
3814 WCHAR maskW[12], pathW[MAX_PATH];
3815 static const WCHAR wildcardW[] = {'*','.','*',0};
3817 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3818 MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH);
3820 p = strrchrW( pathW, '\\');
3821 q = strrchrW( pathW, '/');
3825 if (pathW[0] && pathW[1] == ':') p = pathW + 2;
3830 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
3831 * (doesn't matter as it is set below anyway)
3833 if (!INT21_ToDosFCBFormat( p, maskW ))
3835 SetLastError( ERROR_FILE_NOT_FOUND );
3836 SET_AX( context, ERROR_FILE_NOT_FOUND );
3840 WideCharToMultiByte(CP_OEMCP, 0, maskW, 12, dta->mask, sizeof(dta->mask), NULL, NULL);
3842 dta->fullPath = HeapAlloc( GetProcessHeap(), 0, sizeof(wildcardW) + (p - pathW)*sizeof(WCHAR) );
3843 memcpy( dta->fullPath, pathW, (p - pathW) * sizeof(WCHAR) );
3844 memcpy( dta->fullPath + (p - pathW), wildcardW, sizeof(wildcardW) );
3845 /* we must have a fully qualified file name in dta->fullPath
3846 * (we could have a UNC path, but this would lead to some errors later on)
3848 dta->drive = toupperW(dta->fullPath[0]) - 'A';
3850 dta->search_attr = CL_reg(context);
3854 /******************************************************************
3857 * Check is a short path name (DTA unicode) matches a mask (FCB ansi)
3859 static BOOL match_short(LPCWSTR shortW, LPCSTR maskA)
3861 WCHAR mask[11], file[12];
3864 if (!INT21_ToDosFCBFormat( shortW, file )) return FALSE;
3865 MultiByteToWideChar(CP_OEMCP, 0, maskA, 11, mask, 11);
3866 for (i = 0; i < 11; i++)
3867 if (mask[i] != '?' && mask[i] != file[i]) return FALSE;
3871 static unsigned INT21_FindHelper(LPCWSTR fullPath, unsigned drive, unsigned count,
3872 LPCSTR mask, unsigned search_attr,
3873 WIN32_FIND_DATAW* entry)
3877 if ((search_attr & ~(FA_UNUSED | FA_ARCHIVE | FA_RDONLY)) == FA_LABEL)
3879 WCHAR path[] = {' ',':',0};
3881 if (count) return 0;
3882 path[0] = drive + 'A';
3883 if (!GetVolumeInformationW(path, entry->cAlternateFileName, 13, NULL, NULL, NULL, NULL, 0)) return 0;
3884 RtlSecondsSince1970ToTime( (time_t)0, (LARGE_INTEGER *)&entry->ftCreationTime );
3885 RtlSecondsSince1970ToTime( (time_t)0, (LARGE_INTEGER *)&entry->ftLastAccessTime );
3886 RtlSecondsSince1970ToTime( (time_t)0, (LARGE_INTEGER *)&entry->ftLastWriteTime );
3887 entry->dwFileAttributes = FA_LABEL;
3888 entry->nFileSizeHigh = entry->nFileSizeLow = 0;
3889 TRACE("returning %s as label\n", debugstr_w(entry->cAlternateFileName));
3893 if (!INT21_FindHandle || INT21_FindPath != fullPath || count == 0)
3895 if (INT21_FindHandle) FindClose(INT21_FindHandle);
3896 INT21_FindHandle = FindFirstFileW(fullPath, entry);
3897 if (INT21_FindHandle == INVALID_HANDLE_VALUE)
3899 INT21_FindHandle = 0;
3902 INT21_FindPath = fullPath;
3903 /* we need to resync search */
3908 while (ncalls-- != 0)
3910 if (!FindNextFileW(INT21_FindHandle, entry))
3912 FindClose(INT21_FindHandle); INT21_FindHandle = 0;
3916 while (count < 0xffff)
3919 /* Check the file attributes, and path */
3920 if (!(entry->dwFileAttributes & ~search_attr) &&
3921 match_short(entry->cAlternateFileName[0] ? entry->cAlternateFileName : entry->cFileName,
3926 if (!FindNextFileW(INT21_FindHandle, entry))
3928 FindClose(INT21_FindHandle); INT21_FindHandle = 0;
3932 WARN("Too many directory entries in %s\n", debugstr_w(fullPath) );
3936 /******************************************************************
3939 static int INT21_FindNext( CONTEXT86 *context )
3941 FINDFILE_DTA *dta = (FINDFILE_DTA *)INT21_GetCurrentDTA(context);
3942 DWORD attr = dta->search_attr | FA_UNUSED | FA_ARCHIVE | FA_RDONLY;
3943 WIN32_FIND_DATAW entry;
3946 if (!dta->fullPath) return 0;
3948 n = INT21_FindHelper(dta->fullPath, dta->drive, dta->count,
3949 dta->mask, attr, &entry);
3952 dta->fileattr = entry.dwFileAttributes;
3953 dta->filesize = entry.nFileSizeLow;
3954 FileTimeToDosDateTime( &entry.ftLastWriteTime, &dta->filedate, &dta->filetime );
3955 if (entry.cAlternateFileName[0])
3956 WideCharToMultiByte(CP_OEMCP, 0, entry.cAlternateFileName, -1,
3957 dta->filename, 13, NULL, NULL);
3959 WideCharToMultiByte(CP_OEMCP, 0, entry.cFileName, -1, dta->filename, 13, NULL, NULL);
3961 if (!memchr(dta->mask,'?',11))
3963 /* wildcardless search, release resources in case no findnext will
3964 * be issued, and as a workaround in case file creation messes up
3965 * findnext, as sometimes happens with pkunzip
3967 HeapFree( GetProcessHeap(), 0, dta->fullPath );
3968 INT21_FindPath = dta->fullPath = NULL;
3973 HeapFree( GetProcessHeap(), 0, dta->fullPath );
3974 INT21_FindPath = dta->fullPath = NULL;
3978 /* microsoft's programmers should be shot for using CP/M style int21
3979 calls in Windows for Workgroup's winfile.exe */
3981 /******************************************************************
3982 * INT21_FindFirstFCB
3985 static int INT21_FindFirstFCB( CONTEXT86 *context )
3987 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3990 WCHAR p[] = {' ',':',};
3992 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
3993 else pFCB = (FINDFILE_FCB *)fcb;
3994 drive = INT21_MapDrive( pFCB->drive );
3995 if (drive == MAX_DOS_DRIVES) return 0;
3998 pFCB->fullPath = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
3999 if (!pFCB->fullPath) return 0;
4000 GetLongPathNameW(p, pFCB->fullPath, MAX_PATH);
4005 /******************************************************************
4009 static int INT21_FindNextFCB( CONTEXT86 *context )
4011 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
4013 LPBYTE pResult = INT21_GetCurrentDTA(context);
4014 DOS_DIRENTRY_LAYOUT *ddl;
4015 WIN32_FIND_DATAW entry;
4020 if (*fcb == 0xff) /* extended FCB ? */
4023 pFCB = (FINDFILE_FCB *)(fcb + 7);
4028 pFCB = (FINDFILE_FCB *)fcb;
4031 if (!pFCB->fullPath) return 0;
4032 n = INT21_FindHelper(pFCB->fullPath, INT21_MapDrive( pFCB->drive ),
4033 pFCB->count, pFCB->filename, attr, &entry);
4036 HeapFree( GetProcessHeap(), 0, pFCB->fullPath );
4037 INT21_FindPath = pFCB->fullPath = NULL;
4044 /* place extended FCB header before pResult if called with extended FCB */
4046 pResult += 6; /* leave reserved field behind */
4047 *pResult++ = entry.dwFileAttributes;
4049 *pResult++ = INT21_MapDrive( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
4050 ddl = (DOS_DIRENTRY_LAYOUT*)pResult;
4051 ddl->fileattr = entry.dwFileAttributes;
4052 ddl->cluster = 0; /* what else? */
4053 ddl->filesize = entry.nFileSizeLow;
4054 memset( ddl->reserved, 0, sizeof(ddl->reserved) );
4055 FileTimeToDosDateTime( &entry.ftLastWriteTime,
4056 &ddl->filedate, &ddl->filetime );
4058 /* Convert file name to FCB format */
4059 if (entry.cAlternateFileName[0])
4060 INT21_ToDosFCBFormat( entry.cAlternateFileName, nameW );
4062 INT21_ToDosFCBFormat( entry.cFileName, nameW );
4063 WideCharToMultiByte(CP_OEMCP, 0, nameW, 11, ddl->filename, 11, NULL, NULL);
4068 /******************************************************************
4069 * INT21_ParseFileNameIntoFCB
4072 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
4075 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
4077 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
4081 INT buffer_len, len;
4083 SET_AL( context, 0xff ); /* failed */
4085 TRACE("filename: '%s'\n", filename);
4088 while (*s && (*s != ' ') && (*s != '\r') && (*s != '\n'))
4092 buffer_len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, NULL, 0);
4093 buffer = HeapAlloc( GetProcessHeap(), 0, (buffer_len + 1) * sizeof(WCHAR));
4094 len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, buffer, buffer_len);
4096 INT21_ToDosFCBFormat(buffer, fcbW);
4097 HeapFree(GetProcessHeap(), 0, buffer);
4098 WideCharToMultiByte(CP_OEMCP, 0, fcbW, 12, fcb + 1, 12, NULL, NULL);
4100 TRACE("FCB: '%s'\n", fcb + 1);
4102 SET_AL( context, ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0 );
4104 /* point DS:SI to first unparsed character */
4105 SET_SI( context, context->Esi + (int)s - (int)filename );
4108 static BOOL INT21_Dup2(HFILE16 hFile1, HFILE16 hFile2)
4110 HFILE16 res = HFILE_ERROR16;
4111 HANDLE handle, new_handle;
4112 #define DOS_TABLE_SIZE 256
4113 DWORD map[DOS_TABLE_SIZE / 32];
4116 handle = DosFileHandleToWin32Handle(hFile1);
4117 if (handle == INVALID_HANDLE_VALUE)
4121 /* now loop to allocate the same one... */
4122 memset(map, 0, sizeof(map));
4123 for (i = 0; i < DOS_TABLE_SIZE; i++)
4125 if (!DuplicateHandle(GetCurrentProcess(), handle,
4126 GetCurrentProcess(), &new_handle,
4127 0, FALSE, DUPLICATE_SAME_ACCESS))
4129 res = HFILE_ERROR16;
4132 res = Win32HandleToDosFileHandle(new_handle);
4133 if (res == HFILE_ERROR16 || res == hFile2) break;
4134 map[res / 32] |= 1 << (res % 32);
4136 /* clean up the allocated slots */
4137 for (i = 0; i < DOS_TABLE_SIZE; i++)
4139 if (map[i / 32] & (1 << (i % 32)))
4140 _lclose16((HFILE16)i);
4142 return res == hFile2;
4146 /***********************************************************************
4147 * DOSVM_Int21Handler
4149 * Interrupt 0x21 handler.
4151 void WINAPI DOSVM_Int21Handler( CONTEXT86 *context )
4153 BOOL bSetDOSExtendedError = FALSE;
4155 TRACE( "AX=%04x BX=%04x CX=%04x DX=%04x "
4156 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08x\n",
4157 AX_reg(context), BX_reg(context),
4158 CX_reg(context), DX_reg(context),
4159 SI_reg(context), DI_reg(context),
4160 (WORD)context->SegDs, (WORD)context->SegEs,
4164 * Extended error is used by (at least) functions 0x2f to 0x62.
4165 * Function 0x59 returns extended error and error should not
4166 * be cleared before handling the function.
4168 if (AH_reg(context) >= 0x2f && AH_reg(context) != 0x59)
4171 RESET_CFLAG(context); /* Not sure if this is a good idea. */
4173 switch(AH_reg(context))
4175 case 0x00: /* TERMINATE PROGRAM */
4176 TRACE("TERMINATE PROGRAM\n");
4177 if (DOSVM_IsWin16())
4179 else if(ISV86(context))
4180 MZ_Exit( context, FALSE, 0 );
4182 ERR( "Called from DOS protected mode\n" );
4185 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
4188 TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
4189 INT21_ReadChar( &ascii, context );
4190 SET_AL( context, ascii );
4192 * FIXME: What to echo when extended keycodes are read?
4194 DOSVM_PutChar(AL_reg(context));
4198 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
4199 TRACE("Write Character to Standard Output\n");
4200 DOSVM_PutChar(DL_reg(context));
4203 case 0x03: /* READ CHARACTER FROM STDAUX */
4204 case 0x04: /* WRITE CHARACTER TO STDAUX */
4205 case 0x05: /* WRITE CHARACTER TO PRINTER */
4206 INT_BARF( context, 0x21 );
4209 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
4210 if (DL_reg(context) == 0xff)
4212 TRACE("Direct Console Input\n");
4214 if (INT21_ReadChar( NULL, NULL ))
4217 INT21_ReadChar( &ascii, context );
4218 SET_AL( context, ascii );
4219 RESET_ZFLAG( context );
4223 /* no character available */
4224 SET_AL( context, 0 );
4225 SET_ZFLAG( context );
4230 TRACE("Direct Console Output\n");
4231 DOSVM_PutChar(DL_reg(context));
4233 * At least DOS versions 2.1-7.0 return character
4234 * that was written in AL register.
4236 SET_AL( context, DL_reg(context) );
4240 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
4243 TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
4244 INT21_ReadChar( &ascii, context );
4245 SET_AL( context, ascii );
4249 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
4252 TRACE("CHARACTER INPUT WITHOUT ECHO\n");
4253 INT21_ReadChar( &ascii, context );
4254 SET_AL( context, ascii );
4258 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
4259 TRACE("WRITE '$'-terminated string from %04X:%04X to stdout\n",
4260 context->SegDs, DX_reg(context) );
4262 LPSTR data = CTX_SEG_OFF_TO_LIN( context,
4263 context->SegDs, context->Edx );
4267 * Do NOT use strchr() to calculate the string length,
4268 * as '\0' is valid string content, too!
4269 * Maybe we should check for non-'$' strings, but DOS doesn't.
4271 while (*p != '$') p++;
4273 if (DOSVM_IsWin16())
4274 WriteFile( DosFileHandleToWin32Handle(1),
4275 data, p - data, &w, NULL );
4277 for(; data != p; data++)
4278 DOSVM_PutChar( *data );
4280 SET_AL( context, '$' ); /* yes, '$' (0x24) gets returned in AL */
4284 case 0x0a: /* BUFFERED INPUT */
4286 BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
4291 TRACE( "BUFFERED INPUT (size=%d)\n", ptr[0] );
4294 * FIXME: Some documents state that
4295 * ptr[1] holds number of chars from last input which
4296 * may be recalled on entry, other documents do not mention
4300 TRACE( "Handle old chars in buffer!\n" );
4303 * ptr[0] - capacity (includes terminating CR)
4304 * ptr[1] - characters read (excludes terminating CR)
4306 result = INT21_BufferedInput( context, ptr + 2, ptr[0] );
4308 ptr[1] = (BYTE)result - 1;
4314 case 0x0b: /* GET STDIN STATUS */
4315 TRACE( "GET STDIN STATUS\n" );
4317 if (INT21_ReadChar( NULL, NULL ))
4318 SET_AL( context, 0xff ); /* character available */
4320 SET_AL( context, 0 ); /* no character available */
4324 case 0x0c: /* FLUSH BUFFER AND READ STANDARD INPUT */
4326 BYTE al = AL_reg(context); /* Input function to execute after flush. */
4328 TRACE( "FLUSH BUFFER AND READ STANDARD INPUT - 0x%02x\n", al );
4330 /* FIXME: buffers are not flushed */
4333 * If AL is one of 0x01, 0x06, 0x07, 0x08, or 0x0a,
4334 * int21 function identified by AL will be called.
4336 if(al == 0x01 || al == 0x06 || al == 0x07 || al == 0x08 || al == 0x0a)
4338 SET_AH( context, al );
4339 DOSVM_Int21Handler( context );
4344 case 0x0d: /* DISK BUFFER FLUSH */
4345 TRACE("DISK BUFFER FLUSH ignored\n");
4348 case 0x0e: /* SELECT DEFAULT DRIVE */
4349 TRACE( "SELECT DEFAULT DRIVE - %c:\n", 'A' + DL_reg(context) );
4350 INT21_SetCurrentDrive( DL_reg(context) );
4351 SET_AL( context, MAX_DOS_DRIVES );
4354 case 0x0f: /* OPEN FILE USING FCB */
4355 INT21_OpenFileUsingFCB( context );
4358 case 0x10: /* CLOSE FILE USING FCB */
4359 INT21_CloseFileUsingFCB( context );
4362 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
4363 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
4364 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
4365 if (!INT21_FindFirstFCB(context))
4367 SET_AL( context, 0xff );
4370 /* else fall through */
4372 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
4373 SET_AL( context, INT21_FindNextFCB(context) ? 0x00 : 0xff );
4376 case 0x13: /* DELETE FILE USING FCB */
4377 INT_BARF( context, 0x21 );
4380 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
4381 INT21_SequentialReadFromFCB( context );
4384 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
4385 INT21_SequentialWriteToFCB( context );
4388 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
4389 case 0x17: /* RENAME FILE USING FCB */
4390 INT_BARF( context, 0x21 );
4393 case 0x18: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4394 SET_AL( context, 0 );
4397 case 0x19: /* GET CURRENT DEFAULT DRIVE */
4398 SET_AL( context, INT21_GetCurrentDrive() );
4399 TRACE( "GET CURRENT DRIVE -> %c:\n", 'A' + AL_reg( context ) );
4402 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
4403 TRACE( "SET DISK TRANSFER AREA ADDRESS %04X:%04X\n",
4404 context->SegDs, DX_reg(context) );
4406 TDB *task = GlobalLock16( GetCurrentTask() );
4407 task->dta = MAKESEGPTR( context->SegDs, DX_reg(context) );
4411 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
4412 if (!INT21_GetDriveAllocInfo(context, 0))
4413 SET_AX( context, 0xffff );
4416 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
4417 if (!INT21_GetDriveAllocInfo(context, DL_reg(context)))
4418 SET_AX( context, 0xffff );
4421 case 0x1d: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4422 case 0x1e: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4423 SET_AL( context, 0 );
4426 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
4428 BYTE drive = INT21_MapDrive( 0 );
4429 TRACE( "GET DPB FOR DEFAULT DRIVE\n" );
4431 if (INT21_FillDrivePB( drive ))
4433 SET_AL( context, 0x00 ); /* success */
4434 SET_BX( context, offsetof( INT21_HEAP, misc_dpb_list[drive] ) );
4435 context->SegDs = INT21_GetHeapSelector( context );
4439 SET_AL( context, 0xff ); /* invalid or network drive */
4444 case 0x20: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4445 SET_AL( context, 0 );
4448 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
4449 INT21_ReadRandomRecordFromFCB( context );
4452 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
4453 INT21_WriteRandomRecordToFCB( context );
4456 case 0x23: /* GET FILE SIZE FOR FCB */
4457 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
4458 INT_BARF( context, 0x21 );
4461 case 0x25: /* SET INTERRUPT VECTOR */
4462 TRACE("SET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
4464 FARPROC16 ptr = (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context) );
4465 if (!ISV86(context) && DOSVM_IsWin16())
4466 DOSVM_SetPMHandler16( AL_reg(context), ptr );
4468 DOSVM_SetRMHandler( AL_reg(context), ptr );
4472 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
4473 INT_BARF( context, 0x21 );
4476 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
4477 INT21_RandomBlockReadFromFCB( context );
4480 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
4481 INT21_RandomBlockWriteToFCB( context );
4484 case 0x29: /* PARSE FILENAME INTO FCB */
4485 INT21_ParseFileNameIntoFCB(context);
4488 case 0x2a: /* GET SYSTEM DATE */
4489 TRACE( "GET SYSTEM DATE\n" );
4492 GetLocalTime( &systime );
4493 SET_CX( context, systime.wYear );
4494 SET_DH( context, systime.wMonth );
4495 SET_DL( context, systime.wDay );
4496 SET_AL( context, systime.wDayOfWeek );
4500 case 0x2b: /* SET SYSTEM DATE */
4501 TRACE( "SET SYSTEM DATE\n" );
4503 WORD year = CX_reg(context);
4504 BYTE month = DH_reg(context);
4505 BYTE day = DL_reg(context);
4507 if (year >= 1980 && year <= 2099 &&
4508 month >= 1 && month <= 12 &&
4509 day >= 1 && day <= 31)
4511 FIXME( "SetSystemDate(%02d/%02d/%04d): not allowed\n",
4513 SET_AL( context, 0 ); /* Let's pretend we succeeded */
4517 SET_AL( context, 0xff ); /* invalid date */
4518 TRACE( "SetSystemDate(%02d/%02d/%04d): invalid date\n",
4524 case 0x2c: /* GET SYSTEM TIME */
4525 TRACE( "GET SYSTEM TIME\n" );
4528 GetLocalTime( &systime );
4529 SET_CH( context, systime.wHour );
4530 SET_CL( context, systime.wMinute );
4531 SET_DH( context, systime.wSecond );
4532 SET_DL( context, systime.wMilliseconds / 10 );
4536 case 0x2d: /* SET SYSTEM TIME */
4537 if( CH_reg(context) >= 24 || CL_reg(context) >= 60 || DH_reg(context) >= 60 || DL_reg(context) >= 100 ) {
4538 TRACE("SetSystemTime(%02d:%02d:%02d.%02d): wrong time\n",
4539 CH_reg(context), CL_reg(context),
4540 DH_reg(context), DL_reg(context) );
4541 SET_AL( context, 0xFF );
4545 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
4546 CH_reg(context), CL_reg(context),
4547 DH_reg(context), DL_reg(context) );
4548 SET_AL( context, 0 ); /* Let's pretend we succeeded */
4552 case 0x2e: /* SET VERIFY FLAG */
4553 TRACE("SET VERIFY FLAG ignored\n");
4554 /* we cannot change the behaviour anyway, so just ignore it */
4557 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
4558 TRACE( "GET DISK TRANSFER AREA ADDRESS\n" );
4560 TDB *task = GlobalLock16( GetCurrentTask() );
4561 context->SegEs = SELECTOROF( task->dta );
4562 SET_BX( context, OFFSETOF( task->dta ) );
4566 case 0x30: /* GET DOS VERSION */
4567 TRACE( "GET DOS VERSION - %s requested\n",
4568 (AL_reg(context) == 0x00) ? "OEM number" : "version flag" );
4570 if (AL_reg(context) == 0x00)
4571 SET_BH( context, 0xff ); /* OEM number => undefined */
4573 SET_BH( context, 0x08 ); /* version flag => DOS is in ROM */
4575 SET_AL( context, HIBYTE(HIWORD(GetVersion16())) ); /* major version */
4576 SET_AH( context, LOBYTE(HIWORD(GetVersion16())) ); /* minor version */
4578 SET_BL( context, 0x12 ); /* 0x123456 is 24-bit Wine's serial # */
4579 SET_CX( context, 0x3456 );
4582 case 0x31: /* TERMINATE AND STAY RESIDENT */
4583 FIXME("TERMINATE AND STAY RESIDENT stub\n");
4586 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
4588 BYTE drive = INT21_MapDrive( DL_reg(context) );
4589 TRACE( "GET DPB FOR SPECIFIC DRIVE %d\n", DL_reg(context) );
4591 if (INT21_FillDrivePB( drive ))
4593 SET_AL( context, 0x00 ); /* success */
4594 SET_DX( context, offsetof( INT21_HEAP, misc_dpb_list[drive] ) );
4595 context->SegDs = INT21_GetHeapSelector( context );
4599 SET_AL( context, 0xff ); /* invalid or network drive */
4604 case 0x33: /* MULTIPLEXED */
4605 switch (AL_reg(context))
4607 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
4608 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
4609 SET_DL( context, DOSCONF_GetConfig()->brk_flag );
4612 case 0x01: /* SET EXTENDED BREAK STATE */
4613 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
4614 DOSCONF_GetConfig()->brk_flag = (DL_reg(context) > 0) ? 1 : 0;
4617 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
4618 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
4619 /* ugly coding in order to stay reentrant */
4620 if (DL_reg(context))
4622 SET_DL( context, DOSCONF_GetConfig()->brk_flag );
4623 DOSCONF_GetConfig()->brk_flag = 1;
4627 SET_DL( context, DOSCONF_GetConfig()->brk_flag );
4628 DOSCONF_GetConfig()->brk_flag = 0;
4632 case 0x05: /* GET BOOT DRIVE */
4633 TRACE("GET BOOT DRIVE\n");
4634 SET_DL( context, 3 );
4635 /* c: is Wine's bootdrive (a: is 1)*/
4638 case 0x06: /* GET TRUE VERSION NUMBER */
4639 TRACE("GET TRUE VERSION NUMBER\n");
4640 SET_BL( context, HIBYTE(HIWORD(GetVersion16())) ); /* major */
4641 SET_BH( context, LOBYTE(HIWORD(GetVersion16())) ); /* minor */
4642 SET_DL( context, 0x00 ); /* revision */
4643 SET_DH( context, 0x08 ); /* DOS is in ROM */
4647 INT_BARF( context, 0x21 );
4652 case 0x34: /* GET ADDRESS OF INDOS FLAG */
4653 TRACE( "GET ADDRESS OF INDOS FLAG\n" );
4654 context->SegEs = INT21_GetHeapSelector( context );
4655 SET_BX( context, offsetof(INT21_HEAP, misc_indos) );
4658 case 0x35: /* GET INTERRUPT VECTOR */
4659 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
4662 if (!ISV86(context) && DOSVM_IsWin16())
4663 addr = DOSVM_GetPMHandler16( AL_reg(context) );
4665 addr = DOSVM_GetRMHandler( AL_reg(context) );
4666 context->SegEs = SELECTOROF(addr);
4667 SET_BX( context, OFFSETOF(addr) );
4671 case 0x36: /* GET FREE DISK SPACE */
4672 TRACE("GET FREE DISK SPACE FOR DRIVE %s (limited to about 1GB)\n",
4673 INT21_DriveName( DL_reg(context) ));
4674 if (!INT21_GetFreeDiskSpace(context)) SET_AX( context, 0xffff );
4677 case 0x37: /* SWITCHAR */
4679 switch (AL_reg(context))
4681 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
4682 TRACE( "SWITCHAR - GET SWITCH CHARACTER\n" );
4683 SET_AL( context, 0x00 ); /* success*/
4684 SET_DL( context, '/' );
4686 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
4687 FIXME( "SWITCHAR - SET SWITCH CHARACTER: %c\n",
4689 SET_AL( context, 0x00 ); /* success*/
4692 INT_BARF( context, 0x21 );
4698 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
4699 TRACE( "GET COUNTRY-SPECIFIC INFORMATION\n" );
4700 if (AL_reg(context))
4702 WORD country = AL_reg(context);
4703 if (country == 0xff)
4704 country = BX_reg(context);
4705 if (country != INT21_GetSystemCountryCode()) {
4706 FIXME( "Requested info on non-default country %04x\n", country );
4711 if(AX_reg(context) != 2 )
4713 INT21_FillCountryInformation( CTX_SEG_OFF_TO_LIN(context,
4716 SET_AX( context, INT21_GetSystemCountryCode() );
4717 SET_BX( context, INT21_GetSystemCountryCode() );
4718 RESET_CFLAG(context);
4722 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
4723 if (!INT21_CreateDirectory( context ))
4724 bSetDOSExtendedError = TRUE;
4726 RESET_CFLAG(context);
4729 case 0x3a: /* "RMDIR" - REMOVE DIRECTORY */
4731 WCHAR dirW[MAX_PATH];
4732 char *dirA = CTX_SEG_OFF_TO_LIN(context,
4733 context->SegDs, context->Edx);
4735 TRACE( "REMOVE DIRECTORY %s\n", dirA );
4737 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
4739 if (!RemoveDirectoryW( dirW ))
4740 bSetDOSExtendedError = TRUE;
4742 RESET_CFLAG(context);
4746 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
4747 if (!INT21_SetCurrentDirectory( context ))
4748 bSetDOSExtendedError = TRUE;
4750 RESET_CFLAG(context);
4753 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
4754 if (!INT21_CreateFile( context, context->Edx, FALSE,
4755 OF_READWRITE | OF_SHARE_COMPAT, 0x12 ))
4756 bSetDOSExtendedError = TRUE;
4758 RESET_CFLAG(context);
4761 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
4762 if (!INT21_CreateFile( context, context->Edx, FALSE,
4763 AL_reg(context), 0x01 ))
4764 bSetDOSExtendedError = TRUE;
4766 RESET_CFLAG(context);
4769 case 0x3e: /* "CLOSE" - CLOSE FILE */
4770 TRACE( "CLOSE handle %d\n", BX_reg(context) );
4771 if (_lclose16( BX_reg(context) ) == HFILE_ERROR16)
4772 bSetDOSExtendedError = TRUE;
4774 RESET_CFLAG(context);
4777 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
4778 TRACE( "READ from %d to %04X:%04X for %d bytes\n",
4785 WORD count = CX_reg(context);
4786 BYTE *buffer = CTX_SEG_OFF_TO_LIN( context,
4790 /* Some programs pass a count larger than the allocated buffer */
4791 if (DOSVM_IsWin16())
4793 DWORD maxcount = GetSelectorLimit16( context->SegDs )
4794 - DX_reg(context) + 1;
4795 if (count > maxcount)
4800 * FIXME: Reading from console (BX=1) in DOS mode
4801 * does not work as it is supposed to work.
4804 RESET_CFLAG(context); /* set if error */
4805 if (!DOSVM_IsWin16() && BX_reg(context) == 0)
4807 result = INT21_BufferedInput( context, buffer, count );
4808 SET_AX( context, (WORD)result );
4810 else if (ReadFile( DosFileHandleToWin32Handle(BX_reg(context)),
4811 buffer, count, &result, NULL ))
4812 SET_AX( context, (WORD)result );
4814 bSetDOSExtendedError = TRUE;
4818 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
4819 TRACE( "WRITE from %04X:%04X to handle %d for %d byte\n",
4820 context->SegDs, DX_reg(context),
4821 BX_reg(context), CX_reg(context) );
4823 char *ptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
4825 if (!DOSVM_IsWin16() &&
4826 (BX_reg(context) == 1 || BX_reg(context) == 2))
4829 for(i=0; i<CX_reg(context); i++)
4830 DOSVM_PutChar(ptr[i]);
4831 SET_AX(context, CX_reg(context));
4832 RESET_CFLAG(context);
4836 HFILE handle = (HFILE)DosFileHandleToWin32Handle(BX_reg(context));
4837 LONG result = _hwrite( handle, ptr, CX_reg(context) );
4838 if (result == HFILE_ERROR)
4839 bSetDOSExtendedError = TRUE;
4842 SET_AX( context, (WORD)result );
4843 RESET_CFLAG(context);
4849 case 0x41: /* "UNLINK" - DELETE FILE */
4851 WCHAR fileW[MAX_PATH];
4852 char *fileA = CTX_SEG_OFF_TO_LIN(context,
4856 TRACE( "UNLINK %s\n", fileA );
4857 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
4859 if (!DeleteFileW( fileW ))
4860 bSetDOSExtendedError = TRUE;
4862 RESET_CFLAG(context);
4866 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
4867 TRACE( "LSEEK handle %d offset %d from %s\n",
4869 MAKELONG( DX_reg(context), CX_reg(context) ),
4870 (AL_reg(context) == 0) ?
4871 "start of file" : ((AL_reg(context) == 1) ?
4872 "current file position" : "end of file") );
4874 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
4875 LONG offset = MAKELONG( DX_reg(context), CX_reg(context) );
4876 DWORD status = SetFilePointer( handle, offset,
4877 NULL, AL_reg(context) );
4878 if (status == INVALID_SET_FILE_POINTER)
4879 bSetDOSExtendedError = TRUE;
4882 SET_AX( context, LOWORD(status) );
4883 SET_DX( context, HIWORD(status) );
4884 RESET_CFLAG(context);
4889 case 0x43: /* FILE ATTRIBUTES */
4890 if (!INT21_FileAttributes( context, AL_reg(context), FALSE ))
4891 bSetDOSExtendedError = TRUE;
4893 RESET_CFLAG(context);
4896 case 0x44: /* IOCTL */
4897 INT21_Ioctl( context );
4900 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
4901 TRACE( "DUPLICATE FILE HANDLE %d\n", BX_reg(context) );
4904 HFILE handle16 = HFILE_ERROR;
4906 if (DuplicateHandle( GetCurrentProcess(),
4907 DosFileHandleToWin32Handle(BX_reg(context)),
4908 GetCurrentProcess(),
4910 0, TRUE, DUPLICATE_SAME_ACCESS ))
4911 handle16 = Win32HandleToDosFileHandle(handle32);
4913 if (handle16 == HFILE_ERROR)
4914 bSetDOSExtendedError = TRUE;
4917 SET_AX( context, handle16 );
4918 RESET_CFLAG(context);
4923 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
4924 TRACE( "FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
4925 BX_reg(context), CX_reg(context) );
4926 if (!INT21_Dup2(BX_reg(context), CX_reg(context)))
4927 bSetDOSExtendedError = TRUE;
4929 RESET_CFLAG(context);
4932 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
4933 if (!INT21_GetCurrentDirectory( context, FALSE ))
4934 bSetDOSExtendedError = TRUE;
4936 RESET_CFLAG(context);
4939 case 0x48: /* ALLOCATE MEMORY */
4940 TRACE( "ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context) );
4943 DWORD bytes = (DWORD)BX_reg(context) << 4;
4945 if (!ISV86(context) && DOSVM_IsWin16())
4947 DWORD rv = GlobalDOSAlloc16( bytes );
4948 selector = LOWORD( rv );
4951 DOSMEM_AllocBlock( bytes, &selector );
4955 SET_AX( context, selector );
4956 RESET_CFLAG(context);
4961 SET_AX( context, 0x0008 ); /* insufficient memory */
4962 SET_BX( context, DOSMEM_Available() >> 4 );
4967 case 0x49: /* FREE MEMORY */
4968 TRACE( "FREE MEMORY segment %04X\n", context->SegEs );
4972 if (!ISV86(context) && DOSVM_IsWin16())
4974 ok = !GlobalDOSFree16( context->SegEs );
4976 /* If we don't reset ES_reg, we will fail in the relay code */
4981 ok = DOSMEM_FreeBlock( PTR_REAL_TO_LIN(context->SegEs, 0) );
4985 TRACE("FREE MEMORY failed\n");
4987 SET_AX( context, 0x0009 ); /* memory block address invalid */
4992 case 0x4a: /* RESIZE MEMORY BLOCK */
4993 TRACE( "RESIZE MEMORY segment %04X to %d paragraphs\n",
4994 context->SegEs, BX_reg(context) );
4996 DWORD newsize = (DWORD)BX_reg(context) << 4;
4998 if (!ISV86(context) && DOSVM_IsWin16())
5000 FIXME( "Resize memory block - unsupported under Win16\n" );
5005 LPVOID address = (void*)((DWORD)context->SegEs << 4);
5006 UINT blocksize = DOSMEM_ResizeBlock( address, newsize, FALSE );
5008 RESET_CFLAG(context);
5009 if (blocksize == (UINT)-1)
5011 SET_CFLAG( context );
5012 SET_AX( context, 0x0009 ); /* illegal address */
5014 else if(blocksize != newsize)
5016 SET_CFLAG( context );
5017 SET_AX( context, 0x0008 ); /* insufficient memory */
5018 SET_BX( context, blocksize >> 4 ); /* new block size */
5024 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
5026 char *program = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
5027 BYTE *paramblk = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
5029 TRACE( "EXEC %s\n", program );
5031 RESET_CFLAG(context);
5032 if (DOSVM_IsWin16())
5034 HINSTANCE16 instance = WinExec16( program, SW_NORMAL );
5037 SET_CFLAG( context );
5038 SET_AX( context, instance );
5043 if (!MZ_Exec( context, program, AL_reg(context), paramblk))
5044 bSetDOSExtendedError = TRUE;
5049 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
5050 TRACE( "EXIT with return code %d\n", AL_reg(context) );
5051 if (DOSVM_IsWin16())
5052 ExitThread( AL_reg(context) );
5053 else if(ISV86(context))
5054 MZ_Exit( context, FALSE, AL_reg(context) );
5060 ULONG_PTR rv = AL_reg(context);
5061 RaiseException( EXCEPTION_VM86_INTx, 0, 1, &rv );
5065 case 0x4d: /* GET RETURN CODE */
5066 TRACE("GET RETURN CODE (ERRORLEVEL)\n");
5067 SET_AX( context, DOSVM_retval );
5071 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
5072 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
5073 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
5074 if (!INT21_FindFirst(context)) break;
5077 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
5078 TRACE("FINDNEXT\n");
5079 if (!INT21_FindNext(context))
5081 SetLastError( ERROR_NO_MORE_FILES );
5082 SET_AX( context, ERROR_NO_MORE_FILES );
5085 else SET_AX( context, 0 ); /* OK */
5088 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
5089 TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
5090 DOSVM_psp = BX_reg(context);
5093 case 0x51: /* GET PSP ADDRESS */
5094 INT21_GetPSP( context );
5097 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
5099 SEGPTR ptr = DOSDEV_GetLOL( ISV86(context) || !DOSVM_IsWin16() );
5100 context->SegEs = SELECTOROF(ptr);
5101 SET_BX( context, OFFSETOF(ptr) );
5105 case 0x54: /* Get Verify Flag */
5106 TRACE("Get Verify Flag - Not Supported\n");
5107 SET_AL( context, 0x00 ); /* pretend we can tell. 00h = off 01h = on */
5110 case 0x56: /* "RENAME" - RENAME FILE */
5111 if (!INT21_RenameFile( context ))
5112 bSetDOSExtendedError = TRUE;
5114 RESET_CFLAG(context);
5117 case 0x57: /* FILE DATE AND TIME */
5118 if (!INT21_FileDateTime( context ))
5119 bSetDOSExtendedError = TRUE;
5121 RESET_CFLAG(context);
5124 case 0x58: /* GET OR SET MEMORY ALLOCATION STRATEGY */
5125 switch (AL_reg(context))
5127 case 0x00: /* GET MEMORY ALLOCATION STRATEGY */
5128 TRACE( "GET MEMORY ALLOCATION STRATEGY\n" );
5129 SET_AX( context, 0 ); /* low memory first fit */
5132 case 0x01: /* SET ALLOCATION STRATEGY */
5133 TRACE( "SET MEMORY ALLOCATION STRATEGY to %d - ignored\n",
5137 case 0x02: /* GET UMB LINK STATE */
5138 TRACE( "GET UMB LINK STATE\n" );
5139 SET_AL( context, 0 ); /* UMBs not part of DOS memory chain */
5142 case 0x03: /* SET UMB LINK STATE */
5143 TRACE( "SET UMB LINK STATE to %d - ignored\n",
5148 INT_BARF( context, 0x21 );
5152 case 0x59: /* GET EXTENDED ERROR INFO */
5153 INT21_GetExtendedError( context );
5156 case 0x5a: /* CREATE TEMPORARY FILE */
5157 TRACE("CREATE TEMPORARY FILE\n");
5158 bSetDOSExtendedError = !INT21_CreateTempFile(context);
5161 case 0x5b: /* CREATE NEW FILE */
5162 if (!INT21_CreateFile( context, context->Edx, FALSE,
5163 OF_READWRITE | OF_SHARE_COMPAT, 0x10 ))
5164 bSetDOSExtendedError = TRUE;
5166 RESET_CFLAG(context);
5169 case 0x5c: /* "FLOCK" - RECORD LOCKING */
5171 DWORD offset = MAKELONG(DX_reg(context), CX_reg(context));
5172 DWORD length = MAKELONG(DI_reg(context), SI_reg(context));
5173 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
5175 RESET_CFLAG(context);
5176 switch (AL_reg(context))
5178 case 0x00: /* LOCK */
5179 TRACE( "lock handle %d offset %d length %d\n",
5180 BX_reg(context), offset, length );
5181 if (!LockFile( handle, offset, 0, length, 0 ))
5182 bSetDOSExtendedError = TRUE;
5185 case 0x01: /* UNLOCK */
5186 TRACE( "unlock handle %d offset %d length %d\n",
5187 BX_reg(context), offset, length );
5188 if (!UnlockFile( handle, offset, 0, length, 0 ))
5189 bSetDOSExtendedError = TRUE;
5193 INT_BARF( context, 0x21 );
5198 case 0x5d: /* NETWORK 5D */
5199 FIXME( "Network function 5D not implemented.\n" );
5200 SetLastError( ER_NoNetwork );
5201 bSetDOSExtendedError = TRUE;
5204 case 0x5e: /* NETWORK 5E */
5205 bSetDOSExtendedError = INT21_NetworkFunc( context);
5208 case 0x5f: /* NETWORK 5F */
5209 /* FIXME: supporting this would need to 1:
5210 * - implement per drive current directory (as kernel32 doesn't)
5211 * - assign enabled/disabled flag on a per drive basis
5213 /* network software not installed */
5214 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
5215 SetLastError( ER_NoNetwork );
5216 bSetDOSExtendedError = TRUE;
5219 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
5221 WCHAR pathW[MAX_PATH], res[MAX_PATH];
5222 /* FIXME: likely to be broken */
5224 TRACE("TRUENAME %s\n",
5225 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
5226 MultiByteToWideChar(CP_OEMCP, 0, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi), -1, pathW, MAX_PATH);
5227 if (!GetFullPathNameW( pathW, 128, res, NULL ))
5228 bSetDOSExtendedError = TRUE;
5231 SET_AX( context, 0 );
5232 WideCharToMultiByte(CP_OEMCP, 0, res, -1,
5233 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
5239 case 0x61: /* UNUSED */
5240 SET_AL( context, 0 );
5243 case 0x62: /* GET PSP ADDRESS */
5244 INT21_GetPSP( context );
5247 case 0x63: /* MISC. LANGUAGE SUPPORT */
5248 switch (AL_reg(context)) {
5249 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
5250 TRACE( "GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE\n" );
5251 context->SegDs = INT21_GetHeapSelector( context );
5252 SET_SI( context, offsetof(INT21_HEAP, dbcs_table) );
5253 SET_AL( context, 0 ); /* success */
5258 case 0x64: /* OS/2 DOS BOX */
5259 INT_BARF( context, 0x21 );
5263 case 0x65: /* EXTENDED COUNTRY INFORMATION */
5264 INT21_ExtendedCountryInformation( context );
5267 case 0x66: /* GLOBAL CODE PAGE TABLE */
5268 switch (AL_reg(context))
5271 TRACE( "GET GLOBAL CODE PAGE TABLE\n" );
5272 SET_BX( context, GetOEMCP() );
5273 SET_DX( context, GetOEMCP() );
5276 FIXME( "SET GLOBAL CODE PAGE TABLE, active %d, system %d - ignored\n",
5277 BX_reg(context), DX_reg(context) );
5282 case 0x67: /* SET HANDLE COUNT */
5283 TRACE( "SET HANDLE COUNT to %d\n", BX_reg(context) );
5284 if (SetHandleCount( BX_reg(context) ) < BX_reg(context) )
5285 bSetDOSExtendedError = TRUE;
5288 case 0x68: /* "FFLUSH" - COMMIT FILE */
5289 TRACE( "FFLUSH - handle %d\n", BX_reg(context) );
5290 if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
5291 bSetDOSExtendedError = TRUE;
5294 case 0x69: /* DISK SERIAL NUMBER */
5295 switch (AL_reg(context))
5298 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
5299 INT21_DriveName(BL_reg(context)));
5300 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
5301 else SET_AX( context, 0 );
5305 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
5306 INT21_DriveName(BL_reg(context)));
5307 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
5308 else SET_AX( context, 1 );
5313 case 0x6a: /* COMMIT FILE */
5314 TRACE( "COMMIT FILE - handle %d\n", BX_reg(context) );
5315 if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
5316 bSetDOSExtendedError = TRUE;
5319 case 0x6b: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
5320 SET_AL( context, 0 );
5323 case 0x6c: /* EXTENDED OPEN/CREATE */
5324 if (!INT21_CreateFile( context, context->Esi, TRUE,
5325 BX_reg(context), DL_reg(context) ))
5326 bSetDOSExtendedError = TRUE;
5329 case 0x70: /* MSDOS 7 - GET/SET INTERNATIONALIZATION INFORMATION */
5330 FIXME( "MS-DOS 7 - GET/SET INTERNATIONALIZATION INFORMATION\n" );
5331 SET_CFLAG( context );
5332 SET_AL( context, 0 );
5335 case 0x71: /* MSDOS 7 - LONG FILENAME FUNCTIONS */
5336 INT21_LongFilename( context );
5339 case 0x73: /* MSDOS7 - FAT32 */
5340 RESET_CFLAG( context );
5341 if (!INT21_Fat32( context ))
5342 bSetDOSExtendedError = TRUE;
5345 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
5346 TRACE( "CONNECTION SERVICES - GET CONNECTION NUMBER - ignored\n" );
5349 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
5350 TRACE( "NOVELL NETWARE - RETURN SHELL VERSION - ignored\n" );
5353 case 0xff: /* DOS32 EXTENDER (DOS/4GW) - API */
5354 /* we don't implement a DOS32 extender */
5355 TRACE( "DOS32 EXTENDER API - ignored\n" );
5359 INT_BARF( context, 0x21 );
5362 } /* END OF SWITCH */
5364 /* Set general error condition. */
5365 if (bSetDOSExtendedError)
5367 SET_AX( context, GetLastError() );
5368 SET_CFLAG( context );
5371 /* Print error code if carry flag is set. */
5372 if (context->EFlags & 0x0001)
5373 TRACE("failed, error %d\n", GetLastError() );
5375 TRACE( "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
5376 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08x\n",
5377 AX_reg(context), BX_reg(context),
5378 CX_reg(context), DX_reg(context),
5379 SI_reg(context), DI_reg(context),
5380 (WORD)context->SegDs, (WORD)context->SegEs,