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"
43 #include "kernel16_private.h"
47 #include "wine/unicode.h"
48 #include "wine/server.h"
49 #include "wine/debug.h"
50 #include "wine/exception.h"
52 BOOL WINAPI VerifyConsoleIoHandle(HANDLE);
55 * - Most of the file related functions are wrong. NT's kernel32
56 * doesn't maintain a per drive current directory, while DOS does.
57 * We should in fact keep track in here of those per drive
58 * directories, and use this info while dealing with partial paths
59 * (drive defined, but only relative paths). This could even be
60 * created as an array of CDS (there should be an entry for that in
65 * Forward declarations.
67 static BOOL INT21_RenameFile( CONTEXT *context );
69 WINE_DEFAULT_DEBUG_CHANNEL(int21);
75 * Extended Drive Parameter Block.
76 * This structure is compatible with standard DOS4+ DPB and
79 typedef struct _INT21_DPB {
80 BYTE drive; /* 00 drive number (0=A, ...) */
81 BYTE unit; /* 01 unit number within device driver */
82 WORD sector_bytes; /* 02 bytes per sector */
83 BYTE cluster_sectors; /* 04 highest sector number within a cluster */
84 BYTE shift; /* 05 shift count to convert clusters into sectors */
85 WORD num_reserved; /* 06 reserved sectors at beginning of drive */
86 BYTE num_FAT; /* 08 number of FATs */
87 WORD num_root_entries; /* 09 number of root directory entries */
88 WORD first_data_sector; /* 0b number of first sector containing user data */
89 WORD num_clusters1; /* 0d highest cluster number (number of data clusters + 1) */
90 WORD sectors_per_FAT; /* 0f number of sectors per FAT */
91 WORD first_dir_sector; /* 11 sector number of first directory sector */
92 SEGPTR driver_header; /* 13 address of device driver header */
93 BYTE media_ID; /* 17 media ID byte */
94 BYTE access_flag; /* 18 0x00 if disk accessed, 0xff if not */
95 SEGPTR next; /* 19 pointer to next DPB */
96 WORD search_cluster1; /* 1d cluster at which to start search for free space */
97 WORD free_clusters_lo; /* 1f number of free clusters on drive or 0xffff if unknown */
98 WORD free_clusters_hi; /* 21 hiword of clusters_free */
99 WORD mirroring_flags; /* 23 active FAT/mirroring flags */
100 WORD info_sector; /* 25 sector number of file system info sector or 0xffff for none */
101 WORD spare_boot_sector; /* 27 sector number of backup boot sector or 0xffff for none */
102 DWORD first_cluster_sector; /* 29 sector number of the first cluster */
103 DWORD num_clusters2; /* 2d maximum cluster number */
104 DWORD fat_clusters; /* 31 number of clusters occupied by FAT */
105 DWORD root_cluster; /* 35 cluster number of start of root directory */
106 DWORD search_cluster2; /* 39 cluster at which to start searching for free space */
111 * Structure for DOS data that can be accessed directly from applications.
112 * Real and protected mode pointers will be returned to this structure so
113 * the structure must be correctly packed.
115 typedef struct _INT21_HEAP {
116 WORD uppercase_size; /* Size of the following table in bytes */
117 BYTE uppercase_table[128]; /* Uppercase equivalents of chars from 0x80 to 0xff. */
119 WORD lowercase_size; /* Size of the following table in bytes */
120 BYTE lowercase_table[256]; /* Lowercase equivalents of chars from 0x00 to 0xff. */
122 WORD collating_size; /* Size of the following table in bytes */
123 BYTE collating_table[256]; /* Values used to sort characters from 0x00 to 0xff. */
125 WORD filename_size; /* Size of the following filename data in bytes */
126 BYTE filename_reserved1; /* 0x01 for MS-DOS 3.30-6.00 */
127 BYTE filename_lowest; /* Lowest permissible character value for filename */
128 BYTE filename_highest; /* Highest permissible character value for filename */
129 BYTE filename_reserved2; /* 0x00 for MS-DOS 3.30-6.00 */
130 BYTE filename_exclude_first; /* First illegal character in permissible range */
131 BYTE filename_exclude_last; /* Last illegal character in permissible range */
132 BYTE filename_reserved3; /* 0x02 for MS-DOS 3.30-6.00 */
133 BYTE filename_illegal_size; /* Number of terminators in the following table */
134 BYTE filename_illegal_table[16]; /* Characters which terminate a filename */
136 WORD dbcs_size; /* Number of valid ranges in the following table */
137 BYTE dbcs_table[16]; /* Start/end bytes for N ranges and 00/00 as terminator */
139 BYTE misc_indos; /* Interrupt 21 nesting flag */
140 WORD misc_segment; /* Real mode segment for INT21_HEAP */
141 WORD misc_selector; /* Protected mode selector for INT21_HEAP */
142 INT21_DPB misc_dpb_list[MAX_DOS_DRIVES]; /* Drive parameter blocks for all drives */
150 CHAR file_extension[3];
151 WORD current_block_number;
152 WORD logical_record_size;
154 WORD date_of_last_write;
155 WORD time_of_last_write;
158 WORD starting_cluster;
159 WORD sequence_number;
160 BYTE file_attributes;
162 BYTE record_within_current_block;
163 BYTE random_access_record_number[4];
170 BYTE xfcb_file_attribute;
174 /* DTA layout for FindFirst/FindNext */
177 BYTE drive; /* 00 drive letter */
178 char mask[11]; /* 01 search template */
179 BYTE search_attr; /* 0c search attributes */
180 WORD count; /* 0d entry count within directory */
181 WORD cluster; /* 0f cluster of parent directory */
182 WCHAR *fullPath; /* 11 full path (was: reserved) */
183 BYTE fileattr; /* 15 file attributes */
184 WORD filetime; /* 16 file time */
185 WORD filedate; /* 18 file date */
186 DWORD filesize; /* 1a file size */
187 char filename[13]; /* 1e file name + extension */
190 /* FCB layout for FindFirstFCB/FindNextFCB */
193 BYTE drive; /* 00 drive letter */
194 char filename[11]; /* 01 filename 8+3 format */
195 int count; /* 0c entry count (was: reserved) */
196 WCHAR *fullPath; /* 10 full path (was: reserved) */
199 /* DOS directory entry for FindFirstFCB/FindNextFCB */
202 char filename[11]; /* 00 filename 8+3 format */
203 BYTE fileattr; /* 0b file attributes */
204 BYTE reserved[10]; /* 0c reserved */
205 WORD filetime; /* 16 file time */
206 WORD filedate; /* 18 file date */
207 WORD cluster; /* 1a file first cluster */
208 DWORD filesize; /* 1c file size */
209 } DOS_DIRENTRY_LAYOUT;
213 /* dos file attributes */
214 #define FA_NORMAL 0x00 /* Normal file, no attributes */
215 #define FA_RDONLY 0x01 /* Read only attribute */
216 #define FA_HIDDEN 0x02 /* Hidden file */
217 #define FA_SYSTEM 0x04 /* System file */
218 #define FA_LABEL 0x08 /* Volume label */
219 #define FA_DIRECTORY 0x10 /* Directory */
220 #define FA_ARCHIVE 0x20 /* Archive */
221 #define FA_UNUSED 0x40 /* Unused */
224 #define ER_NoNetwork 0x49
227 #define EC_OutOfResource 0x01
228 #define EC_Temporary 0x02
229 #define EC_AccessDenied 0x03
230 #define EC_InternalError 0x04
231 #define EC_HardwareFailure 0x05
232 #define EC_SystemFailure 0x06
233 #define EC_ProgramError 0x07
234 #define EC_NotFound 0x08
235 #define EC_MediaError 0x0b
236 #define EC_Exists 0x0c
237 #define EC_Unknown 0x0d
239 /* Suggested actions */
240 #define SA_Retry 0x01
241 #define SA_DelayedRetry 0x02
242 #define SA_Abort 0x04
243 #define SA_Ignore 0x06
244 #define SA_Ask4Retry 0x07
247 #define EL_Unknown 0x01
249 #define EL_Network 0x03
250 #define EL_Serial 0x04
251 #define EL_Memory 0x05
253 /* BIOS Keyboard Scancodes */
254 #define KEY_LEFT 0x4B
255 #define KEY_RIGHT 0x4D
257 #define KEY_DOWN 0x50
258 #define KEY_IC 0x52 /* insert char */
259 #define KEY_DC 0x53 /* delete char */
260 #define KEY_BACKSPACE 0x0E
261 #define KEY_HOME 0x47
263 #define KEY_NPAGE 0x49
264 #define KEY_PPAGE 0x51
273 void (*ioctl_handler)(CONTEXT *);
276 static void INT21_IoctlScsiMgrHandler( CONTEXT * );
277 static void INT21_IoctlHPScanHandler( CONTEXT * );
279 static struct magic_device magic_devices[] =
281 { {'s','c','s','i','m','g','r','$',0}, NULL, { { 0, 0 } }, INT21_IoctlScsiMgrHandler },
282 { {'e','m','m','x','x','x','x','0',0}, NULL, { { 0, 0 } }, EMS_Ioctl_Handler },
283 { {'h','p','s','c','a','n',0}, NULL, { { 0, 0 } }, INT21_IoctlHPScanHandler },
286 #define NB_MAGIC_DEVICES (sizeof(magic_devices)/sizeof(magic_devices[0]))
289 /* Many calls translate a drive argument like this:
290 drive number (00h = default, 01h = A:, etc)
292 /******************************************************************
295 * Many calls translate a drive argument like this:
296 * drive number (00h = default, 01h = A:, etc)
298 static const char *INT21_DriveName(int drive)
302 if (drive <= 26) return wine_dbg_sprintf("%c:", 'A' + drive - 1);
303 else return wine_dbg_sprintf( "<Bad drive: %d>", drive);
308 /***********************************************************************
309 * INT21_GetCurrentDrive
311 * Return current drive using scheme (0=A:, 1=B:, 2=C:, ...) or
312 * MAX_DOS_DRIVES on error.
314 static BYTE INT21_GetCurrentDrive(void)
316 WCHAR current_directory[MAX_PATH];
318 if (!GetCurrentDirectoryW( MAX_PATH, current_directory ) ||
319 current_directory[1] != ':')
321 TRACE( "Failed to get current drive.\n" );
322 return MAX_DOS_DRIVES;
325 return toupperW( current_directory[0] ) - 'A';
329 /***********************************************************************
332 * Convert drive number from scheme (0=default, 1=A:, 2=B:, ...) into
333 * scheme (0=A:, 1=B:, 2=C:, ...) or MAX_DOS_DRIVES on error.
335 static BYTE INT21_MapDrive( BYTE drive )
339 WCHAR drivespec[3] = {'A', ':', 0};
342 drivespec[0] += drive - 1;
343 drivetype = GetDriveTypeW( drivespec );
345 if (drivetype == DRIVE_UNKNOWN || drivetype == DRIVE_NO_ROOT_DIR)
346 return MAX_DOS_DRIVES;
351 return INT21_GetCurrentDrive();
355 /***********************************************************************
356 * INT21_SetCurrentDrive
358 * Set current drive. Uses scheme (0=A:, 1=B:, 2=C:, ...).
360 static void INT21_SetCurrentDrive( BYTE drive )
362 WCHAR drivespec[3] = {'A', ':', 0};
364 drivespec[0] += drive;
366 if (!SetCurrentDirectoryW( drivespec ))
367 TRACE( "Failed to set current drive.\n" );
371 /***********************************************************************
374 * Reads a character from the standard input.
375 * Extended keycodes will be returned as two separate characters.
377 static BOOL INT21_ReadChar( BYTE *input, CONTEXT *waitctx )
379 static BYTE pending_scan = 0;
384 *input = pending_scan;
393 if (!DOSVM_Int16ReadChar( &ascii, &scan, waitctx ))
398 if (waitctx && !ascii)
405 /***********************************************************************
406 * INT21_GetSystemCountryCode
408 * Return DOS country code for default system locale.
410 static WORD INT21_GetSystemCountryCode( void )
412 return GetSystemDefaultLangID();
416 /***********************************************************************
417 * INT21_FillCountryInformation
419 * Fill 34-byte buffer with country information data using
420 * default system locale.
422 static void INT21_FillCountryInformation( BYTE *buffer )
424 /* 00 - WORD: date format
429 *(WORD*)(buffer + 0) = 0; /* FIXME: Get from locale */
431 /* 02 - BYTE[5]: ASCIIZ currency symbol string */
432 buffer[2] = '$'; /* FIXME: Get from locale */
435 /* 07 - BYTE[2]: ASCIIZ thousands separator */
436 buffer[7] = 0; /* FIXME: Get from locale */
439 /* 09 - BYTE[2]: ASCIIZ decimal separator */
440 buffer[9] = '.'; /* FIXME: Get from locale */
443 /* 11 - BYTE[2]: ASCIIZ date separator */
444 buffer[11] = '/'; /* FIXME: Get from locale */
447 /* 13 - BYTE[2]: ASCIIZ time separator */
448 buffer[13] = ':'; /* FIXME: Get from locale */
451 /* 15 - BYTE: Currency format
452 * bit 2 = set if currency symbol replaces decimal point
453 * bit 1 = number of spaces between value and currency symbol
454 * bit 0 = 0 if currency symbol precedes value
455 * 1 if currency symbol follows value
457 buffer[15] = 0; /* FIXME: Get from locale */
459 /* 16 - BYTE: Number of digits after decimal in currency */
460 buffer[16] = 0; /* FIXME: Get from locale */
462 /* 17 - BYTE: Time format
463 * bit 0 = 0 if 12-hour clock
466 buffer[17] = 1; /* FIXME: Get from locale */
468 /* 18 - DWORD: Address of case map routine */
469 *(DWORD*)(buffer + 18) = 0; /* FIXME: ptr to case map routine */
471 /* 22 - BYTE[2]: ASCIIZ data-list separator */
472 buffer[22] = ','; /* FIXME: Get from locale */
475 /* 24 - BYTE[10]: Reserved */
476 memset( buffer + 24, 0, 10 );
480 /***********************************************************************
483 * Initialize DOS heap.
485 * Filename Terminator Table of w2k DE NTVDM:
486 * 16 00 01 00 FF 00 00 20-02 0E 2E 22 2F 5C 5B 5D ....... ..."/\[]
487 * 3A 7C 3C 3E 2B 3D 3B 2C-00 :|<>+=;,
489 static void INT21_FillHeap( INT21_HEAP *heap )
491 static const char terminators[] = ".\"/\\[]:|<>+=;,";
497 heap->uppercase_size = 128;
498 for (i = 0; i < 128; i++)
499 heap->uppercase_table[i] = toupper( 128 + i );
504 heap->lowercase_size = 256;
505 for (i = 0; i < 256; i++)
506 heap->lowercase_table[i] = tolower( i );
511 heap->collating_size = 256;
512 for (i = 0; i < 256; i++)
513 heap->collating_table[i] = i;
518 heap->filename_size = 8 + strlen(terminators);
519 heap->filename_illegal_size = strlen(terminators);
520 memcpy( heap->filename_illegal_table, terminators, heap->filename_illegal_size );
522 heap->filename_reserved1 = 0x01;
523 heap->filename_lowest = 0x00;
524 heap->filename_highest = 0xff;
525 heap->filename_reserved2 = 0x00;
526 heap->filename_exclude_first = 0x00;
527 heap->filename_exclude_last = 0x20;
528 heap->filename_reserved3 = 0x02;
531 * DBCS lead byte table. This table is empty.
534 memset( heap->dbcs_table, 0, sizeof(heap->dbcs_table) );
537 * Initialize InDos flag.
539 heap->misc_indos = 0;
542 * FIXME: Should drive parameter blocks (DPB) be
543 * initialized here and linked to DOS LOL?
548 /***********************************************************************
549 * INT21_GetHeapPointer
551 * Get pointer for DOS heap (INT21_HEAP).
552 * Creates and initializes heap on first call.
554 static INT21_HEAP *INT21_GetHeapPointer( void )
556 static INT21_HEAP *heap_pointer = NULL;
563 heap_pointer = DOSVM_AllocDataUMB( sizeof(INT21_HEAP),
567 heap_pointer->misc_segment = heap_segment;
568 heap_pointer->misc_selector = heap_selector;
569 INT21_FillHeap( heap_pointer );
576 /***********************************************************************
577 * INT21_GetHeapSelector
579 * Get segment/selector for DOS heap (INT21_HEAP).
580 * Creates and initializes heap on first call.
582 static WORD INT21_GetHeapSelector( CONTEXT *context )
584 INT21_HEAP *heap = INT21_GetHeapPointer();
586 if (!ISV86(context) && DOSVM_IsWin16())
587 return heap->misc_selector;
589 return heap->misc_segment;
593 /***********************************************************************
596 * Fill DOS heap drive parameter block for the specified drive.
597 * Return TRUE if drive was valid and there were
598 * no errors while reading drive information.
600 static BOOL INT21_FillDrivePB( BYTE drive )
602 WCHAR drivespec[3] = {'A', ':', 0};
603 INT21_HEAP *heap = INT21_GetHeapPointer();
606 DWORD cluster_sectors;
609 DWORD total_clusters;
611 if (drive >= MAX_DOS_DRIVES)
614 dpb = &heap->misc_dpb_list[drive];
615 drivespec[0] += drive;
616 drivetype = GetDriveTypeW( drivespec );
619 * FIXME: Does this check work correctly with floppy/cdrom drives?
621 if (drivetype == DRIVE_NO_ROOT_DIR || drivetype == DRIVE_UNKNOWN)
625 * FIXME: Does this check work correctly with floppy/cdrom drives?
627 if (!GetDiskFreeSpaceW( drivespec, &cluster_sectors, §or_bytes,
628 &free_clusters, &total_clusters ))
632 * FIXME: Most of the values listed below are incorrect.
633 * All values should be validated.
638 dpb->sector_bytes = sector_bytes;
639 dpb->cluster_sectors = cluster_sectors - 1;
642 while (cluster_sectors > 1)
644 cluster_sectors /= 2;
648 dpb->num_reserved = 0;
650 dpb->num_root_entries = 2;
651 dpb->first_data_sector = 2;
652 dpb->num_clusters1 = total_clusters;
653 dpb->sectors_per_FAT = 1;
654 dpb->first_dir_sector = 1;
655 dpb->driver_header = 0;
656 dpb->media_ID = (drivetype == DRIVE_FIXED) ? 0xF8 : 0xF0;
657 dpb->access_flag = 0;
659 dpb->search_cluster1 = 0;
660 dpb->free_clusters_lo = LOWORD(free_clusters);
661 dpb->free_clusters_hi = HIWORD(free_clusters);
662 dpb->mirroring_flags = 0;
663 dpb->info_sector = 0xffff;
664 dpb->spare_boot_sector = 0xffff;
665 dpb->first_cluster_sector = 0;
666 dpb->num_clusters2 = total_clusters;
667 dpb->fat_clusters = 32;
668 dpb->root_cluster = 0;
669 dpb->search_cluster2 = 0;
675 /***********************************************************************
676 * INT21_GetCurrentDirectory
680 * - subfunction 0x47 of function 0x71
682 static BOOL INT21_GetCurrentDirectory( CONTEXT *context, BOOL islong )
684 char *buffer = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi);
685 BYTE drive = INT21_MapDrive( DL_reg(context) );
686 WCHAR pathW[MAX_PATH];
687 char pathA[MAX_PATH];
690 TRACE( "drive %d\n", DL_reg(context) );
692 if (drive == MAX_DOS_DRIVES)
694 SetLastError(ERROR_INVALID_DRIVE);
699 * Grab current directory.
702 if (!GetCurrentDirectoryW( MAX_PATH, pathW )) return FALSE;
704 if (toupperW(pathW[0]) - 'A' != drive || pathW[1] != ':')
706 /* cwd is not on the requested drive, get the environment string instead */
711 env_var[1] = 'A' + drive;
714 if (!GetEnvironmentVariableW( env_var, pathW, MAX_PATH ))
716 /* return empty path */
723 * Convert into short format.
728 DWORD result = GetShortPathNameW( pathW, pathW, MAX_PATH );
731 if (result > MAX_PATH)
733 WARN( "Short path too long!\n" );
734 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
740 * The returned pathname does not include
741 * the drive letter, colon or leading backslash.
747 * FIXME: We should probably just strip host part from name...
749 FIXME( "UNC names are not supported.\n" );
750 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
753 else if (!ptr[0] || ptr[1] != ':' || ptr[2] != '\\')
755 WARN( "Path is neither UNC nor DOS path: %s\n",
756 wine_dbgstr_w(ptr) );
757 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
762 /* Remove drive letter, colon and leading backslash. */
767 * Convert into OEM string.
770 if (!WideCharToMultiByte(CP_OEMCP, 0, ptr, -1, pathA,
771 MAX_PATH, NULL, NULL))
773 WARN( "Cannot convert path!\n" );
774 SetLastError(ERROR_NETWORK_BUSY); /* Internal Wine error. */
784 /* Undocumented success code. */
785 SET_AX( context, 0x0100 );
787 /* Truncate buffer to 64 bytes. */
791 TRACE( "%c:=%s\n", 'A' + drive, pathA );
793 strcpy( buffer, pathA );
798 /***********************************************************************
799 * INT21_SetCurrentDirectory
803 * - subfunction 0x3b of function 0x71
805 static BOOL INT21_SetCurrentDirectory( CONTEXT *context )
807 WCHAR dirW[MAX_PATH];
810 char *dirA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
811 BYTE drive = INT21_GetCurrentDrive();
814 TRACE( "SET CURRENT DIRECTORY %s\n", dirA );
816 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
817 if (!GetFullPathNameW( dirW, MAX_PATH, dirW, NULL )) return FALSE;
819 attr = GetFileAttributesW( dirW );
820 if (attr == INVALID_FILE_ATTRIBUTES || !(attr & FILE_ATTRIBUTE_DIRECTORY))
822 SetLastError( ERROR_PATH_NOT_FOUND );
827 env_var[1] = dirW[0];
830 result = SetEnvironmentVariableW( env_var, dirW );
832 /* only set current directory if on the current drive */
833 if (result && (toupperW(dirW[0]) - 'A' == drive)) result = SetCurrentDirectoryW( dirW );
838 /***********************************************************************
839 * INT21_CreateMagicDeviceHandle
841 * Create a dummy file handle for a "magic" device.
843 static HANDLE INT21_CreateMagicDeviceHandle( LPCWSTR name )
845 static const WCHAR prefixW[] = {'\\','?','?','\\','u','n','i','x'};
846 const char *dir = wine_get_server_dir();
850 OBJECT_ATTRIBUTES attr;
851 UNICODE_STRING nameW;
854 len = MultiByteToWideChar( CP_UNIXCP, 0, dir, -1, NULL, 0 );
855 nameW.Length = sizeof(prefixW) + (len + strlenW( name )) * sizeof(WCHAR);
856 nameW.MaximumLength = nameW.Length + sizeof(WCHAR);
857 if (!(nameW.Buffer = HeapAlloc( GetProcessHeap(), 0, nameW.MaximumLength )))
859 SetLastError( ERROR_NOT_ENOUGH_MEMORY );
862 memcpy( nameW.Buffer, prefixW, sizeof(prefixW) );
863 MultiByteToWideChar( CP_UNIXCP, 0, dir, -1, nameW.Buffer + sizeof(prefixW)/sizeof(WCHAR), len );
864 len += sizeof(prefixW) / sizeof(WCHAR);
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( CONTEXT *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 GetLastError() == ERROR_ACCESS_DENIED)) {
1094 winHandle = CreateFileW( pathW, winAccess & ~GENERIC_WRITE,
1095 winSharing, NULL, winMode, winAttributes, 0 );
1098 if (winHandle == INVALID_HANDLE_VALUE)
1102 * Determine DOS file status.
1113 case TRUNCATE_EXISTING:
1120 dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 1 : 2;
1123 dosStatus = (GetLastError() == ERROR_ALREADY_EXISTS) ? 3 : 2;
1131 * Return DOS file handle and DOS status.
1133 SET_AX( context, Win32HandleToDosFileHandle(winHandle) );
1136 SET_CX( context, dosStatus );
1138 TRACE( "CreateFile finished: handle=%d, status=%d.\n",
1139 AX_reg(context), dosStatus );
1145 /***********************************************************************
1146 * INT21_BufferedInput
1148 * Handler for function 0x0a and reading from console using
1151 * Reads a string of characters from standard input until
1152 * enter key is pressed. Returns either number of characters
1153 * read from console including terminating CR or
1154 * zero if capacity was zero.
1156 static WORD INT21_BufferedInput( CONTEXT *context, BYTE *ptr, WORD capacity )
1161 * Return immediately if capacity is zero.
1171 DOSVM_Int16ReadChar( &ascii, &scan, context );
1173 if (ascii == '\r' || ascii == '\n')
1180 * DOS handles only backspace and KEY_LEFT
1181 * perhaps we should do more
1183 if (ascii == '\b' || scan == KEY_LEFT)
1185 if (length==0) continue;
1186 DOSVM_PutChar( '\b' );
1192 * If the buffer becomes filled to within one byte of
1193 * capacity, DOS rejects all further characters up to,
1194 * but not including, the terminating carriage return.
1196 if (ascii != 0 && length < capacity-1)
1198 DOSVM_PutChar( ascii );
1199 ptr[length] = ascii;
1206 /***********************************************************************
1207 * INT21_GetCurrentDTA
1209 static BYTE *INT21_GetCurrentDTA( CONTEXT *context )
1211 TDB *pTask = GlobalLock16(GetCurrentTask());
1213 /* FIXME: This assumes DTA was set correctly! */
1214 return CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
1215 OFFSETOF(pTask->dta) );
1219 /***********************************************************************
1220 * INT21_OpenFileUsingFCB
1222 * Handler for function 0x0f.
1225 * DX:DX [I/O] File control block (FCB or XFCB) of unopened file
1232 * Opens a FCB file for read/write in compatibility mode. Upon calling
1233 * the FCB must have the drive_number, file_name, and file_extension
1234 * fields filled and all other bytes cleared.
1236 static void INT21_OpenFileUsingFCB( CONTEXT *context )
1244 BY_HANDLE_FILE_INFORMATION info;
1247 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1248 if (fcb->drive_number == 0xff) {
1249 xfcb = (struct XFCB *) fcb;
1250 fcb = (struct FCB *) xfcb->fcb;
1254 file_path[0] = 'A' + INT21_MapDrive( fcb->drive_number );
1256 if (AL_result == 0) {
1258 pos = &file_path[2];
1259 memcpy(pos, fcb->file_name, 8);
1262 pos = strchr(pos, ' ');
1265 memcpy(pos, fcb->file_extension, 3);
1268 pos = strchr(pos, ' ');
1271 handle = (HANDLE) _lopen(file_path, OF_READWRITE);
1272 if (handle == INVALID_HANDLE_VALUE) {
1273 TRACE("_lopen(\"%s\") failed: INVALID_HANDLE_VALUE\n", file_path);
1274 AL_result = 0xff; /* failed */
1276 hfile16 = Win32HandleToDosFileHandle(handle);
1277 if (hfile16 == HFILE_ERROR16) {
1278 TRACE("Win32HandleToDosFileHandle(%p) failed: HFILE_ERROR\n", handle);
1279 CloseHandle(handle);
1280 AL_result = 0xff; /* failed */
1281 } else if (hfile16 > 255) {
1282 TRACE("hfile16 (=%d) larger than 255 for \"%s\"\n", hfile16, file_path);
1284 AL_result = 0xff; /* failed */
1286 if (!GetFileInformationByHandle(handle, &info)) {
1287 TRACE("GetFileInformationByHandle(%d, %p) for \"%s\" failed\n",
1288 hfile16, handle, file_path);
1290 AL_result = 0xff; /* failed */
1292 fcb->drive_number = file_path[0] - 'A' + 1;
1293 fcb->current_block_number = 0;
1294 fcb->logical_record_size = 128;
1295 fcb->file_size = info.nFileSizeLow;
1296 FileTimeToDosDateTime(&info.ftLastWriteTime,
1297 &fcb->date_of_last_write, &fcb->time_of_last_write);
1298 fcb->file_number = hfile16;
1299 fcb->attributes = 0xc2;
1300 fcb->starting_cluster = 0; /* don't know correct init value */
1301 fcb->sequence_number = 0; /* don't know correct init value */
1302 fcb->file_attributes = info.dwFileAttributes;
1303 /* The following fields are not initialized */
1304 /* by the native function: */
1306 /* record_within_current_block */
1307 /* random_access_record_number */
1309 TRACE("successful opened file \"%s\" as %d (handle %p)\n",
1310 file_path, hfile16, handle);
1311 AL_result = 0x00; /* successful */
1316 SET_AL(context, AL_result);
1320 /***********************************************************************
1321 * INT21_CloseFileUsingFCB
1323 * Handler for function 0x10.
1326 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1333 * Closes a FCB file.
1335 static void INT21_CloseFileUsingFCB( CONTEXT *context )
1341 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1342 if (fcb->drive_number == 0xff) {
1343 xfcb = (struct XFCB *) fcb;
1344 fcb = (struct FCB *) xfcb->fcb;
1347 if (_lclose16((HFILE16) fcb->file_number) != 0) {
1348 TRACE("_lclose16(%d) failed\n", fcb->file_number);
1349 AL_result = 0xff; /* failed */
1351 TRACE("successful closed file %d\n", fcb->file_number);
1352 AL_result = 0x00; /* successful */
1354 SET_AL(context, AL_result);
1358 /***********************************************************************
1359 * INT21_SequentialReadFromFCB
1361 * Handler for function 0x14.
1364 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1368 * 1: end of file, no data read
1369 * 2: segment wrap in DTA, no data read (not returned now)
1370 * 3: end of file, partial record read
1373 * Reads a record with the size FCB->logical_record_size from the FCB
1374 * to the disk transfer area. The position of the record is specified
1375 * with FCB->current_block_number and FCB->record_within_current_block.
1376 * Then FCB->current_block_number and FCB->record_within_current_block
1377 * are updated to point to the next record. If a partial record is
1378 * read, it is filled with zeros up to the FCB->logical_record_size.
1380 static void INT21_SequentialReadFromFCB( CONTEXT *context )
1385 DWORD record_number;
1387 BYTE *disk_transfer_area;
1391 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1392 if (fcb->drive_number == 0xff) {
1393 xfcb = (struct XFCB *) fcb;
1394 fcb = (struct FCB *) xfcb->fcb;
1397 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1398 if (handle == INVALID_HANDLE_VALUE) {
1399 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1401 AL_result = 0x01; /* end of file, no data read */
1403 record_number = 128 * fcb->current_block_number + fcb->record_within_current_block;
1404 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1405 if (position != record_number * fcb->logical_record_size) {
1406 TRACE("seek(%d, %d, 0) failed with %u\n",
1407 fcb->file_number, record_number * fcb->logical_record_size, position);
1408 AL_result = 0x01; /* end of file, no data read */
1410 disk_transfer_area = INT21_GetCurrentDTA(context);
1411 bytes_read = _lread((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
1412 if (bytes_read != fcb->logical_record_size) {
1413 TRACE("_lread(%d, %p, %d) failed with %d\n",
1414 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_read);
1415 if (bytes_read == 0) {
1416 AL_result = 0x01; /* end of file, no data read */
1418 memset(&disk_transfer_area[bytes_read], 0, fcb->logical_record_size - bytes_read);
1419 AL_result = 0x03; /* end of file, partial record read */
1422 TRACE("successful read %d bytes from record %d (position %u) of file %d (handle %p)\n",
1423 bytes_read, record_number, position, fcb->file_number, handle);
1424 AL_result = 0x00; /* successful */
1428 if (AL_result == 0x00 || AL_result == 0x03) {
1429 if (fcb->record_within_current_block == 127) {
1430 fcb->record_within_current_block = 0;
1431 fcb->current_block_number++;
1433 fcb->record_within_current_block++;
1436 SET_AL(context, AL_result);
1440 /***********************************************************************
1441 * INT21_SequentialWriteToFCB
1443 * Handler for function 0x15.
1446 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1451 * 2: segment wrap in DTA (not returned now)
1454 * Writes a record with the size FCB->logical_record_size from the disk
1455 * transfer area to the FCB. The position of the record is specified
1456 * with FCB->current_block_number and FCB->record_within_current_block.
1457 * Then FCB->current_block_number and FCB->record_within_current_block
1458 * are updated to point to the next record.
1460 static void INT21_SequentialWriteToFCB( CONTEXT *context )
1465 DWORD record_number;
1467 BYTE *disk_transfer_area;
1471 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1472 if (fcb->drive_number == 0xff) {
1473 xfcb = (struct XFCB *) fcb;
1474 fcb = (struct FCB *) xfcb->fcb;
1477 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1478 if (handle == INVALID_HANDLE_VALUE) {
1479 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1481 AL_result = 0x01; /* disk full */
1483 record_number = 128 * fcb->current_block_number + fcb->record_within_current_block;
1484 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1485 if (position != record_number * fcb->logical_record_size) {
1486 TRACE("seek(%d, %d, 0) failed with %u\n",
1487 fcb->file_number, record_number * fcb->logical_record_size, position);
1488 AL_result = 0x01; /* disk full */
1490 disk_transfer_area = INT21_GetCurrentDTA(context);
1491 bytes_written = _lwrite((HFILE) handle, (LPCSTR)disk_transfer_area, fcb->logical_record_size);
1492 if (bytes_written != fcb->logical_record_size) {
1493 TRACE("_lwrite(%d, %p, %d) failed with %d\n",
1494 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_written);
1495 AL_result = 0x01; /* disk full */
1497 TRACE("successful written %d bytes from record %d (position %u) of file %d (handle %p)\n",
1498 bytes_written, record_number, position, fcb->file_number, handle);
1499 AL_result = 0x00; /* successful */
1503 if (AL_result == 0x00) {
1504 if (fcb->record_within_current_block == 127) {
1505 fcb->record_within_current_block = 0;
1506 fcb->current_block_number++;
1508 fcb->record_within_current_block++;
1511 SET_AL(context, AL_result);
1515 /***********************************************************************
1516 * INT21_ReadRandomRecordFromFCB
1518 * Handler for function 0x21.
1521 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1525 * 1: end of file, no data read
1526 * 2: segment wrap in DTA, no data read (not returned now)
1527 * 3: end of file, partial record read
1530 * Reads a record with the size FCB->logical_record_size from
1531 * the FCB to the disk transfer area. The position of the record
1532 * is specified with FCB->random_access_record_number. The
1533 * FCB->random_access_record_number is not updated. If a partial record
1534 * is read, it is filled with zeros up to the FCB->logical_record_size.
1536 static void INT21_ReadRandomRecordFromFCB( CONTEXT *context )
1541 DWORD record_number;
1543 BYTE *disk_transfer_area;
1547 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1548 if (fcb->drive_number == 0xff) {
1549 xfcb = (struct XFCB *) fcb;
1550 fcb = (struct FCB *) xfcb->fcb;
1553 memcpy(&record_number, fcb->random_access_record_number, 4);
1554 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1555 if (handle == INVALID_HANDLE_VALUE) {
1556 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1558 AL_result = 0x01; /* end of file, no data read */
1560 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1561 if (position != record_number * fcb->logical_record_size) {
1562 TRACE("seek(%d, %d, 0) failed with %u\n",
1563 fcb->file_number, record_number * fcb->logical_record_size, position);
1564 AL_result = 0x01; /* end of file, no data read */
1566 disk_transfer_area = INT21_GetCurrentDTA(context);
1567 bytes_read = _lread((HFILE) handle, disk_transfer_area, fcb->logical_record_size);
1568 if (bytes_read != fcb->logical_record_size) {
1569 TRACE("_lread(%d, %p, %d) failed with %d\n",
1570 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_read);
1571 if (bytes_read == 0) {
1572 AL_result = 0x01; /* end of file, no data read */
1574 memset(&disk_transfer_area[bytes_read], 0, fcb->logical_record_size - bytes_read);
1575 AL_result = 0x03; /* end of file, partial record read */
1578 TRACE("successful read %d bytes from record %d (position %u) of file %d (handle %p)\n",
1579 bytes_read, record_number, position, fcb->file_number, handle);
1580 AL_result = 0x00; /* successful */
1584 fcb->current_block_number = record_number / 128;
1585 fcb->record_within_current_block = record_number % 128;
1586 SET_AL(context, AL_result);
1590 /***********************************************************************
1591 * INT21_WriteRandomRecordToFCB
1593 * Handler for function 0x22.
1596 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1601 * 2: segment wrap in DTA (not returned now)
1604 * Writes a record with the size FCB->logical_record_size from
1605 * the disk transfer area to the FCB. The position of the record
1606 * is specified with FCB->random_access_record_number. The
1607 * FCB->random_access_record_number is not updated.
1609 static void INT21_WriteRandomRecordToFCB( CONTEXT *context )
1614 DWORD record_number;
1616 BYTE *disk_transfer_area;
1620 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1621 if (fcb->drive_number == 0xff) {
1622 xfcb = (struct XFCB *) fcb;
1623 fcb = (struct FCB *) xfcb->fcb;
1626 memcpy(&record_number, fcb->random_access_record_number, 4);
1627 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1628 if (handle == INVALID_HANDLE_VALUE) {
1629 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1631 AL_result = 0x01; /* disk full */
1633 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1634 if (position != record_number * fcb->logical_record_size) {
1635 TRACE("seek(%d, %d, 0) failed with %u\n",
1636 fcb->file_number, record_number * fcb->logical_record_size, position);
1637 AL_result = 0x01; /* disk full */
1639 disk_transfer_area = INT21_GetCurrentDTA(context);
1640 bytes_written = _lwrite((HFILE) handle, (LPCSTR)disk_transfer_area, fcb->logical_record_size);
1641 if (bytes_written != fcb->logical_record_size) {
1642 TRACE("_lwrite(%d, %p, %d) failed with %d\n",
1643 fcb->file_number, disk_transfer_area, fcb->logical_record_size, bytes_written);
1644 AL_result = 0x01; /* disk full */
1646 TRACE("successful written %d bytes from record %d (position %u) of file %d (handle %p)\n",
1647 bytes_written, record_number, position, fcb->file_number, handle);
1648 AL_result = 0x00; /* successful */
1652 fcb->current_block_number = record_number / 128;
1653 fcb->record_within_current_block = record_number % 128;
1654 SET_AL(context, AL_result);
1658 /***********************************************************************
1659 * INT21_RandomBlockReadFromFCB
1661 * Handler for function 0x27.
1664 * CX [I/O] Number of records to read
1665 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1669 * 1: end of file, no data read
1670 * 2: segment wrap in DTA, no data read (not returned now)
1671 * 3: end of file, partial record read
1674 * Reads several records with the size FCB->logical_record_size from
1675 * the FCB to the disk transfer area. The number of records to be
1676 * read is specified in the CX register. The position of the first
1677 * record is specified with FCB->random_access_record_number. The
1678 * FCB->random_access_record_number, the FCB->current_block_number
1679 * and FCB->record_within_current_block are updated to point to the
1680 * next record after the records read. If a partial record is read,
1681 * it is filled with zeros up to the FCB->logical_record_size. The
1682 * CX register is set to the number of successfully read records.
1684 static void INT21_RandomBlockReadFromFCB( CONTEXT *context )
1689 DWORD record_number;
1691 BYTE *disk_transfer_area;
1692 UINT records_requested;
1693 UINT bytes_requested;
1698 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1699 if (fcb->drive_number == 0xff) {
1700 xfcb = (struct XFCB *) fcb;
1701 fcb = (struct FCB *) xfcb->fcb;
1704 memcpy(&record_number, fcb->random_access_record_number, 4);
1705 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1706 if (handle == INVALID_HANDLE_VALUE) {
1707 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1710 AL_result = 0x01; /* end of file, no data read */
1712 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1713 if (position != record_number * fcb->logical_record_size) {
1714 TRACE("seek(%d, %d, 0) failed with %u\n",
1715 fcb->file_number, record_number * fcb->logical_record_size, position);
1717 AL_result = 0x01; /* end of file, no data read */
1719 disk_transfer_area = INT21_GetCurrentDTA(context);
1720 records_requested = CX_reg(context);
1721 bytes_requested = records_requested * fcb->logical_record_size;
1722 bytes_read = _lread((HFILE) handle, disk_transfer_area, bytes_requested);
1723 if (bytes_read != bytes_requested) {
1724 TRACE("_lread(%d, %p, %d) failed with %d\n",
1725 fcb->file_number, disk_transfer_area, bytes_requested, bytes_read);
1726 records_read = bytes_read / fcb->logical_record_size;
1727 if (bytes_read % fcb->logical_record_size == 0) {
1728 AL_result = 0x01; /* end of file, no data read */
1731 memset(&disk_transfer_area[bytes_read], 0, records_read * fcb->logical_record_size - bytes_read);
1732 AL_result = 0x03; /* end of file, partial record read */
1735 TRACE("successful read %d bytes from record %d (position %u) of file %d (handle %p)\n",
1736 bytes_read, record_number, position, fcb->file_number, handle);
1737 records_read = records_requested;
1738 AL_result = 0x00; /* successful */
1742 record_number += records_read;
1743 memcpy(fcb->random_access_record_number, &record_number, 4);
1744 fcb->current_block_number = record_number / 128;
1745 fcb->record_within_current_block = record_number % 128;
1746 SET_CX(context, records_read);
1747 SET_AL(context, AL_result);
1751 /***********************************************************************
1752 * INT21_RandomBlockWriteToFCB
1754 * Handler for function 0x28.
1757 * CX [I/O] Number of records to write
1758 * DX:DX [I/O] File control block (FCB or XFCB) of open file
1763 * 2: segment wrap in DTA (not returned now)
1766 * Writes several records with the size FCB->logical_record_size from
1767 * the disk transfer area to the FCB. The number of records to be
1768 * written is specified in the CX register. The position of the first
1769 * record is specified with FCB->random_access_record_number. The
1770 * FCB->random_access_record_number, the FCB->current_block_number
1771 * and FCB->record_within_current_block are updated to point to the
1772 * next record after the records written. The CX register is set to
1773 * the number of successfully written records.
1775 static void INT21_RandomBlockWriteToFCB( CONTEXT *context )
1780 DWORD record_number;
1782 BYTE *disk_transfer_area;
1783 UINT records_requested;
1784 UINT bytes_requested;
1786 UINT records_written;
1789 fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
1790 if (fcb->drive_number == 0xff) {
1791 xfcb = (struct XFCB *) fcb;
1792 fcb = (struct FCB *) xfcb->fcb;
1795 memcpy(&record_number, fcb->random_access_record_number, 4);
1796 handle = DosFileHandleToWin32Handle((HFILE16) fcb->file_number);
1797 if (handle == INVALID_HANDLE_VALUE) {
1798 TRACE("DosFileHandleToWin32Handle(%d) failed: INVALID_HANDLE_VALUE\n",
1800 records_written = 0;
1801 AL_result = 0x01; /* disk full */
1803 position = SetFilePointer(handle, record_number * fcb->logical_record_size, NULL, 0);
1804 if (position != record_number * fcb->logical_record_size) {
1805 TRACE("seek(%d, %d, 0) failed with %u\n",
1806 fcb->file_number, record_number * fcb->logical_record_size, position);
1807 records_written = 0;
1808 AL_result = 0x01; /* disk full */
1810 disk_transfer_area = INT21_GetCurrentDTA(context);
1811 records_requested = CX_reg(context);
1812 bytes_requested = records_requested * fcb->logical_record_size;
1813 bytes_written = _lwrite((HFILE) handle, (LPCSTR)disk_transfer_area, bytes_requested);
1814 if (bytes_written != bytes_requested) {
1815 TRACE("_lwrite(%d, %p, %d) failed with %d\n",
1816 fcb->file_number, disk_transfer_area, bytes_requested, bytes_written);
1817 records_written = bytes_written / fcb->logical_record_size;
1818 AL_result = 0x01; /* disk full */
1820 TRACE("successful write %d bytes from record %d (position %u) of file %d (handle %p)\n",
1821 bytes_written, record_number, position, fcb->file_number, handle);
1822 records_written = records_requested;
1823 AL_result = 0x00; /* successful */
1827 record_number += records_written;
1828 memcpy(fcb->random_access_record_number, &record_number, 4);
1829 fcb->current_block_number = record_number / 128;
1830 fcb->record_within_current_block = record_number % 128;
1831 SET_CX(context, records_written);
1832 SET_AL(context, AL_result);
1836 /***********************************************************************
1837 * INT21_CreateDirectory
1841 * - subfunction 0x39 of function 0x71
1842 * - subfunction 0xff of function 0x43 (CL == 0x39)
1844 static BOOL INT21_CreateDirectory( CONTEXT *context )
1846 WCHAR dirW[MAX_PATH];
1847 char *dirA = CTX_SEG_OFF_TO_LIN(context,
1851 TRACE( "CREATE DIRECTORY %s\n", dirA );
1853 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
1855 if (CreateDirectoryW(dirW, NULL))
1859 * FIXME: CreateDirectory's LastErrors will clash with the ones
1860 * used by DOS. AH=39 only returns 3 (path not found) and
1861 * 5 (access denied), while CreateDirectory return several
1862 * ones. Remap some of them. -Marcus
1864 switch (GetLastError())
1866 case ERROR_ALREADY_EXISTS:
1867 case ERROR_FILENAME_EXCED_RANGE:
1868 case ERROR_DISK_FULL:
1869 SetLastError(ERROR_ACCESS_DENIED);
1879 /***********************************************************************
1880 * INT21_ExtendedCountryInformation
1882 * Handler for function 0x65.
1884 static void INT21_ExtendedCountryInformation( CONTEXT *context )
1886 BYTE *dataptr = CTX_SEG_OFF_TO_LIN( context, context->SegEs, context->Edi );
1887 BYTE buffsize = CX_reg (context);
1889 TRACE( "GET EXTENDED COUNTRY INFORMATION, subfunction %02x\n",
1893 * Check subfunctions that are passed country and code page.
1895 if (AL_reg(context) >= 0x01 && AL_reg(context) <= 0x07)
1897 WORD country = DX_reg(context);
1898 WORD codepage = BX_reg(context);
1900 if (country != 0xffff && country != INT21_GetSystemCountryCode())
1901 FIXME( "Requested info on non-default country %04x\n", country );
1903 if (codepage != 0xffff && codepage != GetOEMCP())
1904 FIXME( "Requested info on non-default code page %04x\n", codepage );
1907 switch (AL_reg(context)) {
1908 case 0x00: /* SET GENERAL INTERNATIONALIZATION INFO */
1909 INT_BARF( context, 0x21 );
1910 SET_CFLAG( context );
1913 case 0x01: /* GET GENERAL INTERNATIONALIZATION INFO */
1914 TRACE( "Get general internationalization info\n" );
1915 dataptr[0] = 0x01; /* Info ID */
1916 *(WORD*)(dataptr+1) = 38; /* Size of the following info */
1917 *(WORD*)(dataptr+3) = INT21_GetSystemCountryCode(); /* Country ID */
1918 *(WORD*)(dataptr+5) = GetOEMCP(); /* Code page */
1919 /* FIXME: fill buffer partially up to buffsize bytes*/
1920 if (buffsize >= 0x29){
1921 INT21_FillCountryInformation( dataptr + 7 );
1922 SET_CX( context, 0x29 ); /* Size of returned info */
1924 SET_CX( context, 0x07 ); /* Size of returned info */
1928 case 0x02: /* GET POINTER TO UPPERCASE TABLE */
1929 case 0x04: /* GET POINTER TO FILENAME UPPERCASE TABLE */
1930 TRACE( "Get pointer to uppercase table\n" );
1931 dataptr[0] = AL_reg(context); /* Info ID */
1932 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1933 offsetof(INT21_HEAP, uppercase_size) );
1934 SET_CX( context, 5 ); /* Size of returned info */
1937 case 0x03: /* GET POINTER TO LOWERCASE TABLE */
1938 TRACE( "Get pointer to lowercase table\n" );
1939 dataptr[0] = 0x03; /* Info ID */
1940 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1941 offsetof(INT21_HEAP, lowercase_size) );
1942 SET_CX( context, 5 ); /* Size of returned info */
1945 case 0x05: /* GET POINTER TO FILENAME TERMINATOR TABLE */
1946 TRACE("Get pointer to filename terminator table\n");
1947 dataptr[0] = 0x05; /* Info ID */
1948 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1949 offsetof(INT21_HEAP, filename_size) );
1950 SET_CX( context, 5 ); /* Size of returned info */
1953 case 0x06: /* GET POINTER TO COLLATING SEQUENCE TABLE */
1954 TRACE("Get pointer to collating sequence table\n");
1955 dataptr[0] = 0x06; /* Info ID */
1956 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1957 offsetof(INT21_HEAP, collating_size) );
1958 SET_CX( context, 5 ); /* Size of returned info */
1961 case 0x07: /* GET POINTER TO DBCS LEAD BYTE TABLE */
1962 TRACE("Get pointer to DBCS lead byte table\n");
1963 dataptr[0] = 0x07; /* Info ID */
1964 *(DWORD*)(dataptr+1) = MAKESEGPTR( INT21_GetHeapSelector( context ),
1965 offsetof(INT21_HEAP, dbcs_size) );
1966 SET_CX( context, 5 ); /* Size of returned info */
1969 case 0x20: /* CAPITALIZE CHARACTER */
1970 case 0xa0: /* CAPITALIZE FILENAME CHARACTER */
1971 TRACE("Convert char to uppercase\n");
1972 SET_DL( context, toupper(DL_reg(context)) );
1975 case 0x21: /* CAPITALIZE STRING */
1976 case 0xa1: /* CAPITALIZE COUNTED FILENAME STRING */
1977 TRACE("Convert string to uppercase with length\n");
1979 char *ptr = CTX_SEG_OFF_TO_LIN( context, context->SegDs,
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( CONTEXT *context,
2019 WCHAR fileW[MAX_PATH];
2020 char *fileA = CTX_SEG_OFF_TO_LIN(context,
2030 switch (subfunction)
2032 case 0x00: /* GET FILE ATTRIBUTES */
2033 TRACE( "GET FILE ATTRIBUTES for %s\n", fileA );
2034 len = MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2036 /* Winbench 96 Disk Test fails if we don't complain
2037 * about a filename that ends in \
2039 if (!len || (fileW[len-1] == '/') || (fileW[len-1] == '\\'))
2042 result = GetFileAttributesW( fileW );
2043 if (result == INVALID_FILE_ATTRIBUTES)
2047 SET_CX( context, (WORD)result );
2049 SET_AX( context, (WORD)result ); /* DR DOS */
2053 case 0x01: /* SET FILE ATTRIBUTES */
2054 TRACE( "SET FILE ATTRIBUTES 0x%02x for %s\n",
2055 CX_reg(context), fileA );
2056 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2058 if (!SetFileAttributesW( fileW, CX_reg(context) ))
2062 case 0x02: /* GET COMPRESSED FILE SIZE */
2063 TRACE( "GET COMPRESSED FILE SIZE for %s\n", fileA );
2064 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2066 result = GetCompressedFileSizeW( fileW, NULL );
2067 if (result == INVALID_FILE_SIZE)
2071 SET_AX( context, LOWORD(result) );
2072 SET_DX( context, HIWORD(result) );
2076 case 0x03: /* SET FILE LAST-WRITTEN DATE AND TIME */
2078 INT_BARF( context, 0x21 );
2081 TRACE( "SET FILE LAST-WRITTEN DATE AND TIME, file %s\n", fileA );
2082 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2084 handle = CreateFileW( fileW, GENERIC_WRITE,
2085 FILE_SHARE_READ | FILE_SHARE_WRITE,
2086 NULL, OPEN_EXISTING, 0, 0 );
2087 if (handle == INVALID_HANDLE_VALUE)
2090 DosDateTimeToFileTime( DI_reg(context),
2093 status = SetFileTime( handle, NULL, NULL, &filetime );
2095 CloseHandle( handle );
2100 case 0x04: /* GET FILE LAST-WRITTEN DATE AND TIME */
2102 INT_BARF( context, 0x21 );
2105 TRACE( "GET FILE LAST-WRITTEN DATE AND TIME, file %s\n", fileA );
2106 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2108 handle = CreateFileW( fileW, GENERIC_READ,
2109 FILE_SHARE_READ | FILE_SHARE_WRITE,
2110 NULL, OPEN_EXISTING, 0, 0 );
2111 if (handle == INVALID_HANDLE_VALUE)
2114 status = GetFileTime( handle, NULL, NULL, &filetime );
2117 FileTimeToDosDateTime( &filetime, &date, &time );
2118 SET_DI( context, date );
2119 SET_CX( context, time );
2122 CloseHandle( handle );
2127 case 0x05: /* SET FILE LAST ACCESS DATE */
2129 INT_BARF( context, 0x21 );
2132 TRACE( "SET FILE LAST ACCESS DATE, file %s\n", fileA );
2133 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2135 handle = CreateFileW( fileW, GENERIC_WRITE,
2136 FILE_SHARE_READ | FILE_SHARE_WRITE,
2137 NULL, OPEN_EXISTING, 0, 0 );
2138 if (handle == INVALID_HANDLE_VALUE)
2141 DosDateTimeToFileTime( DI_reg(context),
2144 status = SetFileTime( handle, NULL, &filetime, NULL );
2146 CloseHandle( handle );
2151 case 0x06: /* GET FILE LAST ACCESS DATE */
2153 INT_BARF( context, 0x21 );
2156 TRACE( "GET FILE LAST ACCESS DATE, file %s\n", fileA );
2157 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2159 handle = CreateFileW( fileW, GENERIC_READ,
2160 FILE_SHARE_READ | FILE_SHARE_WRITE,
2161 NULL, OPEN_EXISTING, 0, 0 );
2162 if (handle == INVALID_HANDLE_VALUE)
2165 status = GetFileTime( handle, NULL, &filetime, NULL );
2168 FileTimeToDosDateTime( &filetime, &date, NULL );
2169 SET_DI( context, date );
2172 CloseHandle( handle );
2177 case 0x07: /* SET FILE CREATION DATE AND TIME */
2179 INT_BARF( context, 0x21 );
2182 TRACE( "SET FILE CREATION DATE AND TIME, file %s\n", fileA );
2183 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2185 handle = CreateFileW( fileW, GENERIC_WRITE,
2186 FILE_SHARE_READ | FILE_SHARE_WRITE,
2187 NULL, OPEN_EXISTING, 0, 0 );
2188 if (handle == INVALID_HANDLE_VALUE)
2192 * FIXME: SI has number of 10-millisecond units past time in CX.
2194 DosDateTimeToFileTime( DI_reg(context),
2197 status = SetFileTime( handle, &filetime, NULL, NULL );
2199 CloseHandle( handle );
2204 case 0x08: /* GET FILE CREATION DATE AND TIME */
2206 INT_BARF( context, 0x21 );
2209 TRACE( "GET FILE CREATION DATE AND TIME, file %s\n", fileA );
2210 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
2212 handle = CreateFileW( fileW, GENERIC_READ,
2213 FILE_SHARE_READ | FILE_SHARE_WRITE,
2214 NULL, OPEN_EXISTING, 0, 0 );
2215 if (handle == INVALID_HANDLE_VALUE)
2218 status = GetFileTime( handle, &filetime, NULL, NULL );
2221 FileTimeToDosDateTime( &filetime, &date, &time );
2222 SET_DI( context, date );
2223 SET_CX( context, time );
2225 * FIXME: SI has number of 10-millisecond units past
2228 SET_SI( context, 0 );
2231 CloseHandle(handle);
2236 case 0xff: /* EXTENDED-LENGTH FILENAME OPERATIONS */
2237 if (islong || context->Ebp != 0x5053)
2238 INT_BARF( context, 0x21 );
2241 switch(CL_reg(context))
2244 if (!INT21_CreateDirectory( context ))
2249 if (!INT21_RenameFile( context ))
2254 INT_BARF( context, 0x21 );
2260 INT_BARF( context, 0x21 );
2267 /***********************************************************************
2268 * INT21_FileDateTime
2270 * Handler for function 0x57.
2272 static BOOL INT21_FileDateTime( CONTEXT *context )
2274 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
2278 switch (AL_reg(context)) {
2279 case 0x00: /* Get last-written stamp */
2280 TRACE( "GET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
2283 if (!GetFileTime( handle, NULL, NULL, &filetime ))
2285 FileTimeToDosDateTime( &filetime, &date, &time );
2286 SET_DX( context, date );
2287 SET_CX( context, time );
2291 case 0x01: /* Set last-written stamp */
2292 TRACE( "SET FILE LAST-WRITTEN DATE AND TIME, handle %d\n",
2295 DosDateTimeToFileTime( DX_reg(context),
2298 if (!SetFileTime( handle, NULL, NULL, &filetime ))
2303 case 0x04: /* Get last access stamp, DOS 7 */
2304 TRACE( "GET FILE LAST ACCESS DATE AND TIME, handle %d\n",
2307 if (!GetFileTime( handle, NULL, &filetime, NULL ))
2309 FileTimeToDosDateTime( &filetime, &date, &time );
2310 SET_DX( context, date );
2311 SET_CX( context, time );
2315 case 0x05: /* Set last access stamp, DOS 7 */
2316 TRACE( "SET FILE LAST ACCESS DATE AND TIME, handle %d\n",
2319 DosDateTimeToFileTime( DX_reg(context),
2322 if (!SetFileTime( handle, NULL, &filetime, NULL ))
2327 case 0x06: /* Get creation stamp, DOS 7 */
2328 TRACE( "GET FILE CREATION DATE AND TIME, handle %d\n",
2331 if (!GetFileTime( handle, &filetime, NULL, NULL ))
2333 FileTimeToDosDateTime( &filetime, &date, &time );
2334 SET_DX( context, date );
2335 SET_CX( context, time );
2337 * FIXME: SI has number of 10-millisecond units past time in CX.
2339 SET_SI( context, 0 );
2343 case 0x07: /* Set creation stamp, DOS 7 */
2344 TRACE( "SET FILE CREATION DATE AND TIME, handle %d\n",
2348 * FIXME: SI has number of 10-millisecond units past time in CX.
2350 DosDateTimeToFileTime( DX_reg(context),
2353 if (!SetFileTime( handle, &filetime, NULL, NULL ))
2359 INT_BARF( context, 0x21 );
2367 /***********************************************************************
2370 * Handler for functions 0x51 and 0x62.
2372 static void INT21_GetPSP( CONTEXT *context )
2374 TRACE( "GET CURRENT PSP ADDRESS (%02x)\n", AH_reg(context) );
2377 * FIXME: should we return the original DOS PSP upon
2380 if (!ISV86(context) && DOSVM_IsWin16())
2381 SET_BX( context, LOWORD(GetCurrentPDB16()) );
2383 SET_BX( context, DOSVM_psp );
2386 static inline void setword( BYTE *ptr, WORD w )
2389 ptr[1] = (BYTE)(w >> 8);
2392 static void CreateBPB(int drive, BYTE *data, BOOL16 limited)
2393 /* limited == TRUE is used with INT 0x21/0x440d */
2395 /* FIXME: we're forcing some values without checking that those are valid */
2400 setword(&data[3], 0);
2402 setword(&data[6], 240);
2403 setword(&data[8], 64000);
2405 setword(&data[0x0b], 40);
2406 setword(&data[0x0d], 56);
2407 setword(&data[0x0f], 2);
2408 setword(&data[0x11], 0);
2411 setword(&data[0x1f], 800);
2413 setword(&data[0x22], 1);
2420 setword(&data[3], 0);
2422 setword(&data[6], 240);
2423 setword(&data[8], 2880);
2425 setword(&data[0x0b], 6);
2426 setword(&data[0x0d], 18);
2427 setword(&data[0x0f], 2);
2428 setword(&data[0x11], 0);
2431 setword(&data[0x1f], 80);
2433 setword(&data[0x22], 2);
2438 static inline DWORD INT21_Ioctl_CylHeadSect2Lin(DWORD cyl, WORD head, WORD sec, WORD cyl_cnt,
2439 WORD head_cnt, WORD sec_cnt)
2441 DWORD res = (cyl * head_cnt*sec_cnt + head * sec_cnt + sec);
2445 /***********************************************************************
2448 * Handler for block device IOCTLs.
2450 static void INT21_Ioctl_Block( CONTEXT *context )
2453 BYTE drive = INT21_MapDrive( BL_reg(context) );
2454 WCHAR drivespec[4] = {'A', ':', '\\', 0};
2457 drivespec[0] += drive;
2458 drivetype = GetDriveTypeW( drivespec );
2460 RESET_CFLAG(context);
2461 if (drivetype == DRIVE_UNKNOWN || drivetype == DRIVE_NO_ROOT_DIR)
2463 TRACE( "IOCTL - SUBFUNCTION %d - INVALID DRIVE %c:\n",
2464 AL_reg(context), 'A' + drive );
2465 SetLastError( ERROR_INVALID_DRIVE );
2466 SET_AX( context, ERROR_INVALID_DRIVE );
2467 SET_CFLAG( context );
2471 switch (AL_reg(context))
2473 case 0x04: /* READ FROM BLOCK DEVICE CONTROL CHANNEL */
2474 case 0x05: /* WRITE TO BLOCK DEVICE CONTROL CHANNEL */
2475 INT_BARF( context, 0x21 );
2478 case 0x08: /* CHECK IF BLOCK DEVICE REMOVABLE */
2479 TRACE( "IOCTL - CHECK IF BLOCK DEVICE REMOVABLE - %c:\n",
2482 if (drivetype == DRIVE_REMOVABLE)
2483 SET_AX( context, 0 ); /* removable */
2485 SET_AX( context, 1 ); /* not removable */
2488 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
2489 TRACE( "IOCTL - CHECK IF BLOCK DEVICE REMOTE - %c:\n",
2492 if (drivetype == DRIVE_REMOTE)
2493 SET_DX( context, (1<<9) | (1<<12) ); /* remote + no direct IO */
2495 SET_DX( context, 0 ); /* FIXME: use driver attr here */
2498 case 0x0d: /* GENERIC BLOCK DEVICE REQUEST */
2499 /* Get pointer to IOCTL parameter block */
2500 dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2502 switch (CX_reg(context))
2504 case 0x0841: /* write logical device track */
2505 TRACE( "GENERIC IOCTL - Write logical device track - %c:\n",
2508 WORD head = *(WORD *)(dataptr+1);
2509 WORD cyl = *(WORD *)(dataptr+3);
2510 WORD sect = *(WORD *)(dataptr+5);
2511 WORD nrsect = *(WORD *)(dataptr+7);
2512 BYTE *data = CTX_SEG_OFF_TO_LIN(context, *(WORD *)(dataptr+11), *(WORD *)(dataptr+9));
2513 WORD cyl_cnt, head_cnt, sec_cnt;
2515 /* FIXME: we're faking some values here */
2521 SET_AX( context, ERROR_WRITE_FAULT );
2532 if (!DOSVM_RawWrite(drive, INT21_Ioctl_CylHeadSect2Lin(cyl, head, sect, cyl_cnt, head_cnt, sec_cnt), nrsect, data, FALSE))
2534 SET_AX( context, ERROR_WRITE_FAULT );
2540 case 0x084a: /* lock logical volume */
2541 TRACE( "GENERIC IOCTL - Lock logical volume, level %d mode %d - %c:\n",
2542 BH_reg(context), DX_reg(context), 'A' + drive );
2545 case 0x0860: /* get device parameters */
2546 /* FIXME: we're faking some values here */
2547 /* used by w4wgrp's winfile */
2548 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
2550 dataptr[6] = 0; /* media type */
2553 dataptr[1] = 0x05; /* fixed disk */
2554 setword(&dataptr[2], 0x01); /* non removable */
2555 setword(&dataptr[4], 0x300); /* # of cylinders */
2559 dataptr[1] = 0x07; /* block dev, floppy */
2560 setword(&dataptr[2], 0x02); /* removable */
2561 setword(&dataptr[4], 80); /* # of cylinders */
2563 CreateBPB(drive, &dataptr[7], TRUE);
2564 RESET_CFLAG(context);
2567 case 0x0861: /* read logical device track */
2568 TRACE( "GENERIC IOCTL - Read logical device track - %c:\n",
2571 WORD head = *(WORD *)(dataptr+1);
2572 WORD cyl = *(WORD *)(dataptr+3);
2573 WORD sect = *(WORD *)(dataptr+5);
2574 WORD nrsect = *(WORD *)(dataptr+7);
2575 BYTE *data = CTX_SEG_OFF_TO_LIN(context, *(WORD *)(dataptr+11), *(WORD *)(dataptr+9));
2576 WORD cyl_cnt, head_cnt, sec_cnt;
2578 /* FIXME: we're faking some values here */
2592 if (!DOSVM_RawRead(drive, INT21_Ioctl_CylHeadSect2Lin(cyl, head, sect, cyl_cnt, head_cnt, sec_cnt), nrsect, data, FALSE))
2594 SET_AX( context, ERROR_READ_FAULT );
2600 case 0x0866: /* get volume serial number */
2602 WCHAR label[12],fsname[9];
2605 drivespec[0] += drive;
2606 GetVolumeInformationW(drivespec, label, 12, &serial, NULL, NULL, fsname, 9);
2607 *(WORD*)dataptr = 0;
2608 memcpy(dataptr+2,&serial,4);
2609 WideCharToMultiByte(CP_OEMCP, 0, label, 11, (LPSTR)dataptr + 6, 11, NULL, NULL);
2610 WideCharToMultiByte(CP_OEMCP, 0, fsname, 8, (LPSTR)dataptr + 17, 8, NULL, NULL);
2614 case 0x086a: /* unlock logical volume */
2615 TRACE( "GENERIC IOCTL - Logical volume unlocked - %c:\n",
2619 case 0x086f: /* get drive map information */
2620 memset(dataptr+1, '\0', dataptr[0]-1);
2621 dataptr[1] = dataptr[0];
2622 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
2623 dataptr[3] = 0xFF; /* no physical drive */
2627 /* Trial and error implementation */
2628 SET_AX( context, drivetype == DRIVE_UNKNOWN ? 0x0f : 0x01 );
2629 SET_CFLAG(context); /* Seems to be set all the time */
2633 INT_BARF( context, 0x21 );
2637 case 0x0e: /* GET LOGICAL DRIVE MAP */
2638 TRACE( "IOCTL - GET LOGICAL DRIVE MAP - %c:\n",
2640 /* FIXME: this is not correct if drive has mappings */
2641 SET_AL( context, 0 ); /* drive has no mapping */
2644 case 0x0f: /* SET LOGICAL DRIVE MAP */
2645 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
2646 INT21_DriveName( BL_reg(context)));
2647 /* FIXME: as of today, we don't support logical drive mapping... */
2648 SET_AL( context, 0 );
2651 case 0x11: /* QUERY GENERIC IOCTL CAPABILITY */
2653 INT_BARF( context, 0x21 );
2658 /***********************************************************************
2659 * INT21_IoctlScsiMgrHandler
2661 * IOCTL handler for the SCSIMGR device.
2663 static void INT21_IoctlScsiMgrHandler( CONTEXT *context )
2665 switch (AL_reg(context))
2667 case 0x00: /* GET DEVICE INFORMATION */
2668 SET_DX( context, 0xc0c0 );
2671 case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
2672 DOSVM_ASPIHandler(context);
2675 case 0x0a: /* CHECK IF HANDLE IS REMOTE */
2676 SET_DX( context, 0 );
2679 case 0x01: /* SET DEVICE INFORMATION */
2680 case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
2681 case 0x06: /* GET INPUT STATUS */
2682 case 0x07: /* GET OUTPUT STATUS */
2683 case 0x0c: /* GENERIC CHARACTER DEVICE REQUEST */
2684 case 0x10: /* QUERY GENERIC IOCTL CAPABILITY */
2686 INT_BARF( context, 0x21 );
2692 /***********************************************************************
2693 * INT21_IoctlHPScanHandler
2695 * IOCTL handler for the HPSCAN device.
2697 static void INT21_IoctlHPScanHandler( CONTEXT *context )
2699 switch (AL_reg(context))
2701 case 0x00: /* GET DEVICE INFORMATION */
2702 SET_DX( context, 0xc0c0 );
2705 case 0x0a: /* CHECK IF HANDLE IS REMOTE */
2706 SET_DX( context, 0 );
2709 case 0x01: /* SET DEVICE INFORMATION */
2710 case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
2711 case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
2712 case 0x06: /* GET INPUT STATUS */
2713 case 0x07: /* GET OUTPUT STATUS */
2714 case 0x0c: /* GENERIC CHARACTER DEVICE REQUEST */
2715 case 0x10: /* QUERY GENERIC IOCTL CAPABILITY */
2717 INT_BARF( context, 0x21 );
2723 /***********************************************************************
2726 * Handler for character device IOCTLs.
2728 static void INT21_Ioctl_Char( CONTEXT *context )
2731 int IsConsoleIOHandle = 0;
2733 FILE_INTERNAL_INFORMATION info;
2734 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
2736 status = NtQueryInformationFile( handle, &io, &info, sizeof(info), FileInternalInformation );
2739 if( VerifyConsoleIoHandle( handle))
2740 IsConsoleIOHandle = 1;
2742 SET_AX( context, RtlNtStatusToDosError(status) );
2743 SET_CFLAG( context );
2748 for (i = 0; i < NB_MAGIC_DEVICES; i++)
2750 if (!magic_devices[i].handle) continue;
2751 if (magic_devices[i].index.QuadPart == info.IndexNumber.QuadPart)
2754 magic_devices[i].ioctl_handler( context );
2760 /* no magic device found, do default handling */
2762 switch (AL_reg(context))
2764 case 0x00: /* GET DEVICE INFORMATION */
2765 TRACE( "IOCTL - GET DEVICE INFORMATION - %d\n", BX_reg(context) );
2766 if (IsConsoleIOHandle || GetFileType(handle) == FILE_TYPE_CHAR)
2769 * Returns attribute word in DX:
2770 * Bit 14 - Device driver can process IOCTL requests.
2771 * Bit 13 - Output until busy supported.
2772 * Bit 11 - Driver supports OPEN/CLOSE calls.
2774 * Bit 7 - Set (indicates device).
2775 * Bit 6 - EOF on input.
2776 * Bit 5 - Raw (binary) mode.
2777 * Bit 4 - Device is special (uses int29).
2778 * Bit 3 - Clock device.
2779 * Bit 2 - NUL device.
2780 * Bit 1 - Console output device.
2781 * Bit 0 - Console input device.
2783 SET_DX( context, IsConsoleIOHandle ? 0x80c3 : 0x80c0 /* FIXME */ );
2788 * Returns attribute word in DX:
2789 * Bit 15 - File is remote.
2790 * Bit 14 - Don't set file date/time on closing.
2791 * Bit 11 - Media not removable.
2792 * Bit 8 - Generate int24 if no disk space on write
2793 * or read past end of file
2794 * Bit 7 - Clear (indicates file).
2795 * Bit 6 - File has not been written.
2796 * Bit 5..0 - Drive number (0=A:,...)
2798 * FIXME: Should check if file is on remote or removable drive.
2799 * FIXME: Should use drive file is located on (and not current).
2801 SET_DX( context, 0x0140 + INT21_GetCurrentDrive() );
2805 case 0x0a: /* CHECK IF HANDLE IS REMOTE */
2806 TRACE( "IOCTL - CHECK IF HANDLE IS REMOTE - %d\n", BX_reg(context) );
2808 * Returns attribute word in DX:
2809 * Bit 15 - Set if remote.
2810 * Bit 14 - Set if date/time not set on close.
2812 * FIXME: Should check if file is on remote drive.
2814 SET_DX( context, 0 );
2817 case 0x01: /* SET DEVICE INFORMATION */
2818 case 0x02: /* READ FROM CHARACTER DEVICE CONTROL CHANNEL */
2819 case 0x03: /* WRITE TO CHARACTER DEVICE CONTROL CHANNEL */
2820 case 0x06: /* GET INPUT STATUS */
2821 case 0x07: /* GET OUTPUT STATUS */
2822 case 0x0c: /* GENERIC CHARACTER DEVICE REQUEST */
2823 case 0x10: /* QUERY GENERIC IOCTL CAPABILITY */
2825 INT_BARF( context, 0x21 );
2831 /***********************************************************************
2834 * Handler for function 0x44.
2836 static void INT21_Ioctl( CONTEXT *context )
2838 switch (AL_reg(context))
2844 INT21_Ioctl_Char( context );
2849 INT21_Ioctl_Block( context );
2854 INT21_Ioctl_Char( context );
2859 INT21_Ioctl_Block( context );
2863 INT21_Ioctl_Char( context );
2866 case 0x0b: /* SET SHARING RETRY COUNT */
2867 TRACE( "SET SHARING RETRY COUNT: Pause %d, retries %d.\n",
2868 CX_reg(context), DX_reg(context) );
2869 if (!CX_reg(context))
2871 SET_AX( context, 1 );
2872 SET_CFLAG( context );
2876 DOSDEV_SetSharingRetry( CX_reg(context), DX_reg(context) );
2877 RESET_CFLAG( context );
2882 INT21_Ioctl_Char( context );
2888 INT21_Ioctl_Block( context );
2892 INT21_Ioctl_Char( context );
2896 INT21_Ioctl_Block( context );
2899 case 0x12: /* DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION) */
2900 TRACE( "DR DOS - DETERMINE DOS TYPE (OBSOLETE FUNCTION)\n" );
2901 SET_CFLAG(context); /* Error / This is not DR DOS. */
2902 SET_AX( context, 0x0001 ); /* Invalid function */
2905 case 0x52: /* DR DOS - DETERMINE DOS TYPE */
2906 TRACE( "DR DOS - DETERMINE DOS TYPE\n" );
2907 SET_CFLAG(context); /* Error / This is not DR DOS. */
2908 SET_AX( context, 0x0001 ); /* Invalid function */
2911 case 0xe0: /* Sun PC-NFS API */
2912 TRACE( "Sun PC-NFS API\n" );
2917 INT_BARF( context, 0x21 );
2922 /***********************************************************************
2925 * Handler for function 0x73.
2927 static BOOL INT21_Fat32( CONTEXT *context )
2929 switch (AL_reg(context))
2931 case 0x02: /* FAT32 - GET EXTENDED DPB */
2933 BYTE drive = INT21_MapDrive( DL_reg(context) );
2934 WORD *ptr = CTX_SEG_OFF_TO_LIN(context,
2935 context->SegEs, context->Edi);
2936 INT21_DPB *target = (INT21_DPB*)(ptr + 1);
2939 TRACE( "FAT32 - GET EXTENDED DPB %d\n", DL_reg(context) );
2941 if ( CX_reg(context) < sizeof(INT21_DPB) + 2 || *ptr < sizeof(INT21_DPB) )
2943 SetLastError( ERROR_BAD_LENGTH );
2947 if ( !INT21_FillDrivePB( drive ) )
2949 SetLastError( ERROR_INVALID_DRIVE );
2953 source = &INT21_GetHeapPointer()->misc_dpb_list[drive];
2955 *ptr = sizeof(INT21_DPB);
2958 if (LOWORD(context->Esi) != 0xF1A6)
2960 target->driver_header = 0;
2965 FIXME( "Caller requested driver and next DPB pointers!\n" );
2970 case 0x03: /* FAT32 - GET EXTENDED FREE SPACE ON DRIVE */
2972 WCHAR dirW[MAX_PATH];
2973 char *dirA = CTX_SEG_OFF_TO_LIN( context,
2974 context->SegDs, context->Edx );
2975 BYTE *data = CTX_SEG_OFF_TO_LIN( context,
2976 context->SegEs, context->Edi );
2977 DWORD cluster_sectors;
2979 DWORD free_clusters;
2980 DWORD total_clusters;
2982 TRACE( "FAT32 - GET EXTENDED FREE SPACE ON DRIVE %s\n", dirA );
2983 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
2985 if (CX_reg(context) < 44)
2987 SetLastError( ERROR_BAD_LENGTH );
2991 if (!GetDiskFreeSpaceW( dirW, &cluster_sectors, §or_bytes,
2992 &free_clusters, &total_clusters ))
2995 *(WORD*) (data + 0) = 44; /* size of structure */
2996 *(WORD*) (data + 2) = 0; /* version */
2997 *(DWORD*)(data + 4) = cluster_sectors;
2998 *(DWORD*)(data + 8) = sector_bytes;
2999 *(DWORD*)(data + 12) = free_clusters;
3000 *(DWORD*)(data + 16) = total_clusters;
3003 * Below we have free/total sectors and
3004 * free/total allocation units without adjustment
3005 * for compression. We fake both using cluster information.
3007 *(DWORD*)(data + 20) = free_clusters * cluster_sectors;
3008 *(DWORD*)(data + 24) = total_clusters * cluster_sectors;
3009 *(DWORD*)(data + 28) = free_clusters;
3010 *(DWORD*)(data + 32) = total_clusters;
3013 * Between (data + 36) and (data + 43) there
3014 * are eight reserved bytes.
3020 INT_BARF( context, 0x21 );
3026 static void INT21_ConvertFindDataWtoA(WIN32_FIND_DATAA *dataA,
3027 const WIN32_FIND_DATAW *dataW)
3029 dataA->dwFileAttributes = dataW->dwFileAttributes;
3030 dataA->ftCreationTime = dataW->ftCreationTime;
3031 dataA->ftLastAccessTime = dataW->ftLastAccessTime;
3032 dataA->ftLastWriteTime = dataW->ftLastWriteTime;
3033 dataA->nFileSizeHigh = dataW->nFileSizeHigh;
3034 dataA->nFileSizeLow = dataW->nFileSizeLow;
3035 WideCharToMultiByte( CP_OEMCP, 0, dataW->cFileName, -1,
3036 dataA->cFileName, sizeof(dataA->cFileName), NULL, NULL );
3037 WideCharToMultiByte( CP_OEMCP, 0, dataW->cAlternateFileName, -1,
3038 dataA->cAlternateFileName, sizeof(dataA->cAlternateFileName), NULL, NULL );
3041 /***********************************************************************
3042 * INT21_LongFilename
3044 * Handler for function 0x71.
3046 static void INT21_LongFilename( CONTEXT *context )
3048 BOOL bSetDOSExtendedError = FALSE;
3049 WCHAR pathW[MAX_PATH];
3052 switch (AL_reg(context))
3054 case 0x0d: /* RESET DRIVE */
3055 INT_BARF( context, 0x21 );
3058 case 0x39: /* LONG FILENAME - MAKE DIRECTORY */
3059 if (!INT21_CreateDirectory( context ))
3060 bSetDOSExtendedError = TRUE;
3063 case 0x3a: /* LONG FILENAME - REMOVE DIRECTORY */
3064 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3066 TRACE( "LONG FILENAME - REMOVE DIRECTORY %s\n", pathA);
3067 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3068 if (!RemoveDirectoryW( pathW )) bSetDOSExtendedError = TRUE;
3071 case 0x3b: /* LONG FILENAME - CHANGE DIRECTORY */
3072 if (!INT21_SetCurrentDirectory( context ))
3073 bSetDOSExtendedError = TRUE;
3076 case 0x41: /* LONG FILENAME - DELETE FILE */
3077 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3079 TRACE( "LONG FILENAME - DELETE FILE %s\n", pathA );
3080 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3082 if (!DeleteFileW( pathW )) bSetDOSExtendedError = TRUE;
3085 case 0x43: /* LONG FILENAME - EXTENDED GET/SET FILE ATTRIBUTES */
3086 if (!INT21_FileAttributes( context, BL_reg(context), TRUE ))
3087 bSetDOSExtendedError = TRUE;
3090 case 0x47: /* LONG FILENAME - GET CURRENT DIRECTORY */
3091 if (!INT21_GetCurrentDirectory( context, TRUE ))
3092 bSetDOSExtendedError = TRUE;
3095 case 0x4e: /* LONG FILENAME - FIND FIRST MATCHING FILE */
3099 WIN32_FIND_DATAW dataW;
3100 WIN32_FIND_DATAA* dataA;
3102 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
3103 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n", pathA);
3105 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3106 handle = FindFirstFileW(pathW, &dataW);
3108 dataA = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
3109 if (handle != INVALID_HANDLE_VALUE &&
3110 (h16 = GlobalAlloc16(GMEM_MOVEABLE, sizeof(handle))))
3112 HANDLE* ptr = GlobalLock16( h16 );
3114 GlobalUnlock16( h16 );
3115 SET_AX( context, h16 );
3116 INT21_ConvertFindDataWtoA(dataA, &dataW);
3120 if (handle != INVALID_HANDLE_VALUE) FindClose(handle);
3121 SET_AX( context, INVALID_HANDLE_VALUE16);
3122 bSetDOSExtendedError = TRUE;
3127 case 0x4f: /* LONG FILENAME - FIND NEXT MATCHING FILE */
3129 HGLOBAL16 h16 = BX_reg(context);
3131 WIN32_FIND_DATAW dataW;
3132 WIN32_FIND_DATAA* dataA;
3134 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
3137 dataA = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
3139 if (h16 != INVALID_HANDLE_VALUE16 && (ptr = GlobalLock16( h16 )))
3141 if (!FindNextFileW(*ptr, &dataW)) bSetDOSExtendedError = TRUE;
3142 else INT21_ConvertFindDataWtoA(dataA, &dataW);
3143 GlobalUnlock16( h16 );
3147 SetLastError( ERROR_INVALID_HANDLE );
3148 bSetDOSExtendedError = TRUE;
3153 case 0x56: /* LONG FILENAME - RENAME FILE */
3154 if (!INT21_RenameFile(context))
3155 bSetDOSExtendedError = TRUE;
3158 case 0x60: /* LONG FILENAME - CONVERT PATH */
3160 WCHAR res[MAX_PATH];
3162 switch (CL_reg(context))
3164 case 0x00: /* "truename" - Canonicalize path */
3166 * FIXME: This is not 100% equal to 0x01 case,
3167 * if you fix this, fix int21 subfunction 0x60, too.
3170 case 0x01: /* Get short filename or path */
3171 MultiByteToWideChar(CP_OEMCP, 0, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi), -1, pathW, MAX_PATH);
3172 if (!GetShortPathNameW(pathW, res, 67))
3173 bSetDOSExtendedError = TRUE;
3176 SET_AX( context, 0 );
3177 WideCharToMultiByte(CP_OEMCP, 0, res, -1,
3178 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
3183 case 0x02: /* Get canonical long filename or path */
3184 MultiByteToWideChar(CP_OEMCP, 0, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi), -1, pathW, MAX_PATH);
3185 if (!GetFullPathNameW(pathW, 128, res, NULL))
3186 bSetDOSExtendedError = TRUE;
3189 SET_AX( context, 0 );
3190 WideCharToMultiByte(CP_OEMCP, 0, res, -1,
3191 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
3196 FIXME("Unimplemented long file name function:\n");
3197 INT_BARF( context, 0x21 );
3199 SET_AL( context, 0 );
3205 case 0x6c: /* LONG FILENAME - CREATE OR OPEN FILE */
3206 if (!INT21_CreateFile( context, context->Esi, TRUE,
3207 BX_reg(context), DL_reg(context) ))
3208 bSetDOSExtendedError = TRUE;
3211 case 0xa0: /* LONG FILENAME - GET VOLUME INFORMATION */
3213 DWORD filename_len, flags;
3216 pathA = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
3218 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", pathA);
3219 SET_AX( context, 0 );
3220 MultiByteToWideChar(CP_OEMCP, 0, pathA, -1, pathW, MAX_PATH);
3221 if (!GetVolumeInformationW( pathW, NULL, 0, NULL, &filename_len,
3224 INT_BARF( context, 0x21 );
3228 SET_BX( context, flags | 0x4000 ); /* support for LFN functions */
3229 SET_CX( context, filename_len );
3230 SET_DX( context, MAX_PATH ); /* FIXME: which len if DRIVE_SHORT_NAMES ? */
3231 WideCharToMultiByte(CP_OEMCP, 0, dstW, -1,
3232 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
3237 case 0xa1: /* LONG FILENAME - "FindClose" - TERMINATE DIRECTORY SEARCH */
3239 HGLOBAL16 h16 = BX_reg(context);
3242 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
3244 if (h16 != INVALID_HANDLE_VALUE16 && (ptr = GlobalLock16( h16 )))
3246 if (!FindClose( *ptr )) bSetDOSExtendedError = TRUE;
3247 GlobalUnlock16( h16 );
3248 GlobalFree16( h16 );
3252 SetLastError( ERROR_INVALID_HANDLE );
3253 bSetDOSExtendedError = TRUE;
3258 case 0xa6: /* LONG FILENAME - GET FILE INFO BY HANDLE */
3260 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
3261 BY_HANDLE_FILE_INFORMATION *info =
3262 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3264 TRACE( "LONG FILENAME - GET FILE INFO BY HANDLE\n" );
3266 if (!GetFileInformationByHandle(handle, info))
3267 bSetDOSExtendedError = TRUE;
3271 case 0xa7: /* LONG FILENAME - CONVERT TIME */
3272 switch (BL_reg(context))
3274 case 0x00: /* FILE TIME TO DOS TIME */
3277 FILETIME *filetime = CTX_SEG_OFF_TO_LIN(context,
3281 TRACE( "LONG FILENAME - FILE TIME TO DOS TIME\n" );
3283 FileTimeToDosDateTime( filetime, &date, &time );
3285 SET_DX( context, date );
3286 SET_CX( context, time );
3289 * FIXME: BH has number of 10-millisecond units
3292 SET_BH( context, 0 );
3296 case 0x01: /* DOS TIME TO FILE TIME */
3298 FILETIME *filetime = CTX_SEG_OFF_TO_LIN(context,
3302 TRACE( "LONG FILENAME - DOS TIME TO FILE TIME\n" );
3305 * FIXME: BH has number of 10-millisecond units
3308 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
3314 INT_BARF( context, 0x21 );
3319 case 0xa8: /* LONG FILENAME - GENERATE SHORT FILENAME */
3320 case 0xa9: /* LONG FILENAME - SERVER CREATE OR OPEN FILE */
3321 case 0xaa: /* LONG FILENAME - SUBST */
3323 FIXME("Unimplemented long file name function:\n");
3324 INT_BARF( context, 0x21 );
3326 SET_AL( context, 0 );
3330 if (bSetDOSExtendedError)
3332 SET_AX( context, GetLastError() );
3333 SET_CFLAG( context );
3338 /***********************************************************************
3343 * - subfunction 0x56 of function 0x71
3344 * - subfunction 0xff of function 0x43 (CL == 0x56)
3346 static BOOL INT21_RenameFile( CONTEXT *context )
3348 WCHAR fromW[MAX_PATH];
3349 WCHAR toW[MAX_PATH];
3350 char *fromA = CTX_SEG_OFF_TO_LIN(context,
3351 context->SegDs,context->Edx);
3352 char *toA = CTX_SEG_OFF_TO_LIN(context,
3353 context->SegEs,context->Edi);
3355 TRACE( "RENAME FILE %s to %s\n", fromA, toA );
3356 MultiByteToWideChar(CP_OEMCP, 0, fromA, -1, fromW, MAX_PATH);
3357 MultiByteToWideChar(CP_OEMCP, 0, toA, -1, toW, MAX_PATH);
3359 return MoveFileW( fromW, toW );
3363 /***********************************************************************
3369 static BOOL INT21_NetworkFunc (CONTEXT *context)
3371 switch (AL_reg(context))
3373 case 0x00: /* Get machine name. */
3375 WCHAR dstW[MAX_COMPUTERNAME_LENGTH + 1];
3376 DWORD s = sizeof(dstW) / sizeof(WCHAR);
3379 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
3380 TRACE("getting machine name to %p\n", dst);
3381 if (!GetComputerNameW(dstW, &s) ||
3382 !WideCharToMultiByte(CP_OEMCP, 0, dstW, -1, dst, 16, NULL, NULL))
3385 SetLastError( ER_NoNetwork );
3388 for (len = strlen(dst); len < 15; len++) dst[len] = ' ';
3390 SET_CH( context, 1 ); /* Valid */
3391 SET_CL( context, 1 ); /* NETbios number??? */
3392 TRACE("returning %s\n", debugstr_an(dst, 16));
3397 SetLastError( ER_NoNetwork );
3402 /******************************************************************
3403 * INT21_GetDiskSerialNumber
3406 static int INT21_GetDiskSerialNumber( CONTEXT *context )
3408 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3409 WCHAR path[] = {'A',':','\\',0}, label[11];
3412 path[0] += INT21_MapDrive(BL_reg(context));
3413 if (!GetVolumeInformationW( path, label, 11, &serial, NULL, NULL, NULL, 0))
3415 SetLastError( ERROR_INVALID_DRIVE );
3419 *(WORD *)dataptr = 0;
3420 memcpy(dataptr + 2, &serial, sizeof(DWORD));
3421 WideCharToMultiByte(CP_OEMCP, 0, label, 11, (LPSTR)dataptr + 6, 11, NULL, NULL);
3422 memcpy(dataptr + 17, "FAT16 ", 8);
3427 /******************************************************************
3428 * INT21_SetDiskSerialNumber
3431 static int INT21_SetDiskSerialNumber( CONTEXT *context )
3434 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3435 int drive = INT21_MapDrive(BL_reg(context));
3437 if (!is_valid_drive(drive))
3439 SetLastError( ERROR_INVALID_DRIVE );
3443 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
3446 FIXME("Setting drive serial number is no longer supported\n");
3447 SetLastError( ERROR_NOT_SUPPORTED );
3453 /******************************************************************
3454 * INT21_GetFreeDiskSpace
3457 static int INT21_GetFreeDiskSpace( CONTEXT *context )
3459 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
3460 WCHAR root[] = {'A',':','\\',0};
3461 const DWORD max_clusters = 0x3d83;
3462 const DWORD max_sectors_per_cluster = 0x7f;
3463 const DWORD max_bytes_per_sector = 0x200;
3465 root[0] += INT21_MapDrive(DL_reg(context));
3466 if (!GetDiskFreeSpaceW( root, &cluster_sectors, §or_bytes,
3467 &free_clusters, &total_clusters )) return 0;
3469 /* Some old win31 apps (Lotus SmartSuite 5.1) crap out if there's too
3470 * much disk space, so Windows XP seems to apply the following limits:
3471 * cluster_sectors <= 0x7f
3472 * sector size <= 0x200
3473 * clusters <= 0x3D83
3474 * This means total reported space is limited to about 1GB.
3477 /* Make sure bytes-per-sector is in [, max] */
3478 while (sector_bytes > max_bytes_per_sector) {
3480 free_clusters <<= 1;
3481 total_clusters <<= 1;
3483 /* Then make sure sectors-per-cluster is in [max/2, max]. */
3484 while (cluster_sectors <= max_sectors_per_cluster/2) {
3485 cluster_sectors <<= 1;
3486 free_clusters >>= 1;
3487 total_clusters >>= 1;
3489 while (cluster_sectors > max_sectors_per_cluster) {
3490 cluster_sectors >>= 1;
3491 free_clusters <<= 1;
3492 total_clusters <<= 1;
3495 /* scale up sectors_per_cluster to exactly max_sectors_per_cluster.
3496 * We could skip this, but that would impose an artificially low
3497 * limit on reported disk space.
3498 * To avoid overflow, first apply a preliminary cap on sector count;
3499 * this will not affect the correctness of the final result,
3500 * because if the preliminary cap hits, the final one will, too.
3502 if (total_clusters > 4 * max_clusters)
3503 total_clusters = 4 * max_clusters;
3504 if (free_clusters > 4 * max_clusters)
3505 free_clusters = 4 * max_clusters;
3506 if (cluster_sectors < max_sectors_per_cluster) {
3507 free_clusters *= cluster_sectors;
3508 free_clusters /= max_sectors_per_cluster;
3509 total_clusters *= cluster_sectors;
3510 total_clusters /= max_sectors_per_cluster;
3511 cluster_sectors = max_sectors_per_cluster;
3514 /* Finally, apply real cluster count cap. */
3515 if (total_clusters > max_clusters)
3516 total_clusters = max_clusters;
3517 if (free_clusters > max_clusters)
3518 free_clusters = max_clusters;
3520 SET_AX( context, cluster_sectors );
3521 SET_BX( context, free_clusters );
3522 SET_CX( context, sector_bytes );
3523 SET_DX( context, total_clusters );
3527 /******************************************************************
3528 * INT21_GetDriveAllocInfo
3531 static int INT21_GetDriveAllocInfo( CONTEXT *context, BYTE drive )
3535 drive = INT21_MapDrive( drive );
3536 if (!INT21_FillDrivePB( drive )) return 0;
3537 dpb = &(INT21_GetHeapPointer()->misc_dpb_list[drive]);
3538 SET_AL( context, dpb->cluster_sectors + 1 );
3539 SET_CX( context, dpb->sector_bytes );
3540 SET_DX( context, dpb->num_clusters1 );
3542 context->SegDs = INT21_GetHeapSelector( context );
3543 SET_BX( context, offsetof( INT21_HEAP, misc_dpb_list[drive].media_ID ) );
3547 /***********************************************************************
3548 * INT21_GetExtendedError
3550 static void INT21_GetExtendedError( CONTEXT *context )
3552 BYTE class, action, locus;
3553 WORD error = GetLastError();
3558 class = action = locus = 0;
3560 case ERROR_DIR_NOT_EMPTY:
3565 case ERROR_ACCESS_DENIED:
3566 class = EC_AccessDenied;
3570 case ERROR_CANNOT_MAKE:
3571 class = EC_AccessDenied;
3575 case ERROR_DISK_FULL:
3576 case ERROR_HANDLE_DISK_FULL:
3577 class = EC_MediaError;
3581 case ERROR_FILE_EXISTS:
3582 case ERROR_ALREADY_EXISTS:
3587 case ERROR_FILE_NOT_FOUND:
3588 case ERROR_PATH_NOT_FOUND:
3589 case ERROR_INVALID_NAME:
3590 class = EC_NotFound;
3594 case ERROR_GEN_FAILURE:
3595 class = EC_SystemFailure;
3599 case ERROR_INVALID_DRIVE:
3600 class = EC_MediaError;
3604 case ERROR_INVALID_HANDLE:
3605 class = EC_ProgramError;
3609 case ERROR_LOCK_VIOLATION:
3610 class = EC_AccessDenied;
3614 case ERROR_NO_MORE_FILES:
3615 class = EC_MediaError;
3620 class = EC_NotFound;
3624 case ERROR_NOT_ENOUGH_MEMORY:
3625 class = EC_OutOfResource;
3630 class = EC_NotFound;
3634 case ERROR_SHARING_VIOLATION:
3635 class = EC_Temporary;
3639 case ERROR_TOO_MANY_OPEN_FILES:
3640 class = EC_ProgramError;
3645 FIXME("Unknown error %d\n", error );
3646 class = EC_SystemFailure;
3651 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
3652 error, class, action, locus );
3653 SET_AX( context, error );
3654 SET_BH( context, class );
3655 SET_BL( context, action );
3656 SET_CH( context, locus );
3659 static BOOL INT21_CreateTempFile( CONTEXT *context )
3661 static int counter = 0;
3662 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
3663 char *p = name + strlen(name);
3665 /* despite what Ralf Brown says, some programs seem to call without
3666 * ending backslash (DOS accepts that, so we accept it too) */
3667 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
3671 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
3672 counter = (counter + 1) % 1000;
3675 Win32HandleToDosFileHandle(
3676 CreateFileA( name, GENERIC_READ | GENERIC_WRITE,
3677 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
3678 CREATE_NEW, 0, 0 ) ) );
3679 if (AX_reg(context) != HFILE_ERROR16)
3681 TRACE("created %s\n", name );
3684 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
3688 /***********************************************************************
3689 * DOSFS_ToDosFCBFormat
3691 * Convert a file name to DOS FCB format (8+3 chars, padded with blanks),
3692 * expanding wild cards and converting to upper-case in the process.
3693 * File name can be terminated by '\0', '\\' or '/'.
3694 * Return FALSE if the name is not a valid DOS name.
3695 * 'buffer' must be at least 12 characters long.
3697 /* Chars we don't want to see in DOS file names */
3698 static BOOL INT21_ToDosFCBFormat( LPCWSTR name, LPWSTR buffer )
3700 static const WCHAR invalid_chars[] = {'*','?','<','>','|','\\','"','+','=',',',';','[',']',' ','\345',0};
3704 /* Check for "." and ".." */
3709 for(i = 1; i < 11; i++) buffer[i] = ' ';
3716 return (!*p || (*p == '/') || (*p == '\\'));
3719 for (i = 0; i < 8; i++)
3736 if (strchrW( invalid_chars, *p )) return FALSE;
3737 buffer[i] = toupperW(*p);
3745 /* Skip all chars after wildcard up to first dot */
3746 while (*p && (*p != '/') && (*p != '\\') && (*p != '.')) p++;
3750 /* Check if name too long */
3751 if (*p && (*p != '/') && (*p != '\\') && (*p != '.')) return FALSE;
3753 if (*p == '.') p++; /* Skip dot */
3755 for (i = 8; i < 11; i++)
3765 return FALSE; /* Second extension not allowed */
3773 if (strchrW( invalid_chars, *p )) return FALSE;
3774 buffer[i] = toupperW(*p);
3781 /* at most 3 character of the extension are processed
3782 * is something behind this ?
3784 while (*p == '*' || *p == ' ') p++; /* skip wildcards and spaces */
3785 return (!*p || (*p == '/') || (*p == '\\'));
3788 static HANDLE INT21_FindHandle;
3789 static const WCHAR *INT21_FindPath; /* will point to current dta->fullPath search */
3791 /******************************************************************
3794 static int INT21_FindFirst( CONTEXT *context )
3798 FINDFILE_DTA *dta = (FINDFILE_DTA *)INT21_GetCurrentDTA(context);
3799 WCHAR maskW[12], pathW[MAX_PATH];
3800 static const WCHAR wildcardW[] = {'*','.','*',0};
3802 path = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3803 MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH);
3805 p = strrchrW( pathW, '\\');
3806 q = strrchrW( pathW, '/');
3810 if (pathW[0] && pathW[1] == ':') p = pathW + 2;
3815 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
3816 * (doesn't matter as it is set below anyway)
3818 if (!INT21_ToDosFCBFormat( p, maskW ))
3820 SetLastError( ERROR_FILE_NOT_FOUND );
3821 SET_AX( context, ERROR_FILE_NOT_FOUND );
3825 WideCharToMultiByte(CP_OEMCP, 0, maskW, 12, dta->mask, sizeof(dta->mask), NULL, NULL);
3827 dta->fullPath = HeapAlloc( GetProcessHeap(), 0, sizeof(wildcardW) + (p - pathW)*sizeof(WCHAR) );
3828 memcpy( dta->fullPath, pathW, (p - pathW) * sizeof(WCHAR) );
3829 memcpy( dta->fullPath + (p - pathW), wildcardW, sizeof(wildcardW) );
3830 /* we must have a fully qualified file name in dta->fullPath
3831 * (we could have a UNC path, but this would lead to some errors later on)
3833 dta->drive = toupperW(dta->fullPath[0]) - 'A';
3835 dta->search_attr = CL_reg(context);
3839 /******************************************************************
3842 * Check is a short path name (DTA unicode) matches a mask (FCB ansi)
3844 static BOOL match_short(LPCWSTR shortW, LPCSTR maskA)
3846 WCHAR mask[11], file[12];
3849 if (!INT21_ToDosFCBFormat( shortW, file )) return FALSE;
3850 MultiByteToWideChar(CP_OEMCP, 0, maskA, 11, mask, 11);
3851 for (i = 0; i < 11; i++)
3852 if (mask[i] != '?' && mask[i] != file[i]) return FALSE;
3856 static unsigned INT21_FindHelper(LPCWSTR fullPath, unsigned drive, unsigned count,
3857 LPCSTR mask, unsigned search_attr,
3858 WIN32_FIND_DATAW* entry)
3862 if ((search_attr & ~(FA_UNUSED | FA_ARCHIVE | FA_RDONLY)) == FA_LABEL)
3864 WCHAR path[] = {' ',':','\\',0};
3866 if (count) return 0;
3867 path[0] = drive + 'A';
3868 if (!GetVolumeInformationW(path, entry->cAlternateFileName, 13, NULL, NULL, NULL, NULL, 0)) return 0;
3869 RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftCreationTime );
3870 RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftLastAccessTime );
3871 RtlSecondsSince1970ToTime( 0, (LARGE_INTEGER *)&entry->ftLastWriteTime );
3872 entry->dwFileAttributes = FA_LABEL;
3873 entry->nFileSizeHigh = entry->nFileSizeLow = 0;
3874 TRACE("returning %s as label\n", debugstr_w(entry->cAlternateFileName));
3878 if (!INT21_FindHandle || INT21_FindPath != fullPath || count == 0)
3880 if (INT21_FindHandle) FindClose(INT21_FindHandle);
3881 INT21_FindHandle = FindFirstFileW(fullPath, entry);
3882 if (INT21_FindHandle == INVALID_HANDLE_VALUE)
3884 INT21_FindHandle = 0;
3887 INT21_FindPath = fullPath;
3888 /* we need to resync search */
3893 while (ncalls-- != 0)
3895 if (!FindNextFileW(INT21_FindHandle, entry))
3897 FindClose(INT21_FindHandle); INT21_FindHandle = 0;
3901 while (count < 0xffff)
3904 /* Check the file attributes, and path */
3905 if (!(entry->dwFileAttributes & ~search_attr) &&
3906 match_short(entry->cAlternateFileName[0] ? entry->cAlternateFileName : entry->cFileName,
3911 if (!FindNextFileW(INT21_FindHandle, entry))
3913 FindClose(INT21_FindHandle); INT21_FindHandle = 0;
3917 WARN("Too many directory entries in %s\n", debugstr_w(fullPath) );
3921 /******************************************************************
3924 static int INT21_FindNext( CONTEXT *context )
3926 FINDFILE_DTA *dta = (FINDFILE_DTA *)INT21_GetCurrentDTA(context);
3927 DWORD attr = dta->search_attr | FA_UNUSED | FA_ARCHIVE | FA_RDONLY;
3928 WIN32_FIND_DATAW entry;
3931 if (!dta->fullPath) return 0;
3933 n = INT21_FindHelper(dta->fullPath, dta->drive, dta->count,
3934 dta->mask, attr, &entry);
3937 dta->fileattr = entry.dwFileAttributes;
3938 dta->filesize = entry.nFileSizeLow;
3939 FileTimeToDosDateTime( &entry.ftLastWriteTime, &dta->filedate, &dta->filetime );
3940 if (entry.cAlternateFileName[0])
3941 WideCharToMultiByte(CP_OEMCP, 0, entry.cAlternateFileName, -1,
3942 dta->filename, 13, NULL, NULL);
3944 WideCharToMultiByte(CP_OEMCP, 0, entry.cFileName, -1, dta->filename, 13, NULL, NULL);
3946 if (!memchr(dta->mask,'?',11))
3948 /* wildcardless search, release resources in case no findnext will
3949 * be issued, and as a workaround in case file creation messes up
3950 * findnext, as sometimes happens with pkunzip
3952 HeapFree( GetProcessHeap(), 0, dta->fullPath );
3953 INT21_FindPath = dta->fullPath = NULL;
3958 HeapFree( GetProcessHeap(), 0, dta->fullPath );
3959 INT21_FindPath = dta->fullPath = NULL;
3963 /* microsoft's programmers should be shot for using CP/M style int21
3964 calls in Windows for Workgroup's winfile.exe */
3966 /******************************************************************
3967 * INT21_FindFirstFCB
3970 static int INT21_FindFirstFCB( CONTEXT *context )
3972 BYTE *fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3975 WCHAR p[] = {' ',':',};
3977 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
3978 else pFCB = (FINDFILE_FCB *)fcb;
3979 drive = INT21_MapDrive( pFCB->drive );
3980 if (drive == MAX_DOS_DRIVES) return 0;
3983 pFCB->fullPath = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
3984 if (!pFCB->fullPath) return 0;
3985 GetLongPathNameW(p, pFCB->fullPath, MAX_PATH);
3990 /******************************************************************
3994 static int INT21_FindNextFCB( CONTEXT *context )
3996 BYTE *fcb = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
3998 LPBYTE pResult = INT21_GetCurrentDTA(context);
3999 DOS_DIRENTRY_LAYOUT *ddl;
4000 WIN32_FIND_DATAW entry;
4005 if (*fcb == 0xff) /* extended FCB ? */
4008 pFCB = (FINDFILE_FCB *)(fcb + 7);
4013 pFCB = (FINDFILE_FCB *)fcb;
4016 if (!pFCB->fullPath) return 0;
4017 n = INT21_FindHelper(pFCB->fullPath, INT21_MapDrive( pFCB->drive ),
4018 pFCB->count, pFCB->filename, attr, &entry);
4021 HeapFree( GetProcessHeap(), 0, pFCB->fullPath );
4022 INT21_FindPath = pFCB->fullPath = NULL;
4029 /* place extended FCB header before pResult if called with extended FCB */
4031 pResult += 6; /* leave reserved field behind */
4032 *pResult++ = entry.dwFileAttributes;
4034 *pResult++ = INT21_MapDrive( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
4035 ddl = (DOS_DIRENTRY_LAYOUT*)pResult;
4036 ddl->fileattr = entry.dwFileAttributes;
4037 ddl->cluster = 0; /* what else? */
4038 ddl->filesize = entry.nFileSizeLow;
4039 memset( ddl->reserved, 0, sizeof(ddl->reserved) );
4040 FileTimeToDosDateTime( &entry.ftLastWriteTime,
4041 &ddl->filedate, &ddl->filetime );
4043 /* Convert file name to FCB format */
4044 if (entry.cAlternateFileName[0])
4045 INT21_ToDosFCBFormat( entry.cAlternateFileName, nameW );
4047 INT21_ToDosFCBFormat( entry.cFileName, nameW );
4048 WideCharToMultiByte(CP_OEMCP, 0, nameW, 11, ddl->filename, 11, NULL, NULL);
4053 /******************************************************************
4054 * INT21_ParseFileNameIntoFCB
4057 static void INT21_ParseFileNameIntoFCB( CONTEXT *context )
4060 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
4062 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
4066 INT buffer_len, len;
4068 SET_AL( context, 0xff ); /* failed */
4070 TRACE("filename: '%s'\n", filename);
4073 while (*s && (*s != ' ') && (*s != '\r') && (*s != '\n'))
4077 buffer_len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, NULL, 0);
4078 buffer = HeapAlloc( GetProcessHeap(), 0, (buffer_len + 1) * sizeof(WCHAR));
4079 len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, buffer, buffer_len);
4081 INT21_ToDosFCBFormat(buffer, fcbW);
4082 HeapFree(GetProcessHeap(), 0, buffer);
4083 WideCharToMultiByte(CP_OEMCP, 0, fcbW, 12, fcb + 1, 12, NULL, NULL);
4085 TRACE("FCB: '%s'\n", fcb + 1);
4087 SET_AL( context, ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0 );
4089 /* point DS:SI to first unparsed character */
4090 SET_SI( context, context->Esi + (int)s - (int)filename );
4093 static BOOL INT21_Dup2(HFILE16 hFile1, HFILE16 hFile2)
4095 HFILE16 res = HFILE_ERROR16;
4096 HANDLE handle, new_handle;
4097 #define DOS_TABLE_SIZE 256
4098 DWORD map[DOS_TABLE_SIZE / 32];
4101 handle = DosFileHandleToWin32Handle(hFile1);
4102 if (handle == INVALID_HANDLE_VALUE)
4106 /* now loop to allocate the same one... */
4107 memset(map, 0, sizeof(map));
4108 for (i = 0; i < DOS_TABLE_SIZE; i++)
4110 if (!DuplicateHandle(GetCurrentProcess(), handle,
4111 GetCurrentProcess(), &new_handle,
4112 0, FALSE, DUPLICATE_SAME_ACCESS))
4114 res = HFILE_ERROR16;
4117 res = Win32HandleToDosFileHandle(new_handle);
4118 if (res == HFILE_ERROR16 || res == hFile2) break;
4119 map[res / 32] |= 1 << (res % 32);
4121 /* clean up the allocated slots */
4122 for (i = 0; i < DOS_TABLE_SIZE; i++)
4124 if (map[i / 32] & (1 << (i % 32)))
4125 _lclose16((HFILE16)i);
4127 return res == hFile2;
4131 /***********************************************************************
4132 * DOSVM_Int21Handler
4134 * Interrupt 0x21 handler.
4136 void WINAPI DOSVM_Int21Handler( CONTEXT *context )
4138 BOOL bSetDOSExtendedError = FALSE;
4140 TRACE( "AX=%04x BX=%04x CX=%04x DX=%04x "
4141 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08x\n",
4142 AX_reg(context), BX_reg(context),
4143 CX_reg(context), DX_reg(context),
4144 SI_reg(context), DI_reg(context),
4145 (WORD)context->SegDs, (WORD)context->SegEs,
4149 * Extended error is used by (at least) functions 0x2f to 0x62.
4150 * Function 0x59 returns extended error and error should not
4151 * be cleared before handling the function.
4153 if (AH_reg(context) >= 0x2f && AH_reg(context) != 0x59)
4156 RESET_CFLAG(context); /* Not sure if this is a good idea. */
4158 switch(AH_reg(context))
4160 case 0x00: /* TERMINATE PROGRAM */
4161 TRACE("TERMINATE PROGRAM\n");
4162 if (DOSVM_IsWin16())
4164 else if(ISV86(context))
4165 MZ_Exit( context, FALSE, 0 );
4167 ERR( "Called from DOS protected mode\n" );
4170 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
4173 TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
4174 INT21_ReadChar( &ascii, context );
4175 SET_AL( context, ascii );
4177 * FIXME: What to echo when extended keycodes are read?
4179 DOSVM_PutChar(AL_reg(context));
4183 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
4184 TRACE("Write Character to Standard Output\n");
4185 DOSVM_PutChar(DL_reg(context));
4188 case 0x03: /* READ CHARACTER FROM STDAUX */
4189 case 0x04: /* WRITE CHARACTER TO STDAUX */
4190 case 0x05: /* WRITE CHARACTER TO PRINTER */
4191 INT_BARF( context, 0x21 );
4194 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
4195 if (DL_reg(context) == 0xff)
4197 TRACE("Direct Console Input\n");
4199 if (INT21_ReadChar( NULL, NULL ))
4202 INT21_ReadChar( &ascii, context );
4203 SET_AL( context, ascii );
4204 RESET_ZFLAG( context );
4208 /* no character available */
4209 SET_AL( context, 0 );
4210 SET_ZFLAG( context );
4215 TRACE("Direct Console Output\n");
4216 DOSVM_PutChar(DL_reg(context));
4218 * At least DOS versions 2.1-7.0 return character
4219 * that was written in AL register.
4221 SET_AL( context, DL_reg(context) );
4225 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
4228 TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
4229 INT21_ReadChar( &ascii, context );
4230 SET_AL( context, ascii );
4234 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
4237 TRACE("CHARACTER INPUT WITHOUT ECHO\n");
4238 INT21_ReadChar( &ascii, context );
4239 SET_AL( context, ascii );
4243 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
4244 TRACE("WRITE '$'-terminated string from %04X:%04X to stdout\n",
4245 context->SegDs, DX_reg(context) );
4247 LPSTR data = CTX_SEG_OFF_TO_LIN( context,
4248 context->SegDs, context->Edx );
4252 * Do NOT use strchr() to calculate the string length,
4253 * as '\0' is valid string content, too!
4254 * Maybe we should check for non-'$' strings, but DOS doesn't.
4256 while (*p != '$') p++;
4258 if (DOSVM_IsWin16())
4259 WriteFile( DosFileHandleToWin32Handle(1),
4260 data, p - data, &w, NULL );
4262 for(; data != p; data++)
4263 DOSVM_PutChar( *data );
4265 SET_AL( context, '$' ); /* yes, '$' (0x24) gets returned in AL */
4269 case 0x0a: /* BUFFERED INPUT */
4271 BYTE *ptr = CTX_SEG_OFF_TO_LIN(context,
4276 TRACE( "BUFFERED INPUT (size=%d)\n", ptr[0] );
4279 * FIXME: Some documents state that
4280 * ptr[1] holds number of chars from last input which
4281 * may be recalled on entry, other documents do not mention
4285 TRACE( "Handle old chars in buffer!\n" );
4288 * ptr[0] - capacity (includes terminating CR)
4289 * ptr[1] - characters read (excludes terminating CR)
4291 result = INT21_BufferedInput( context, ptr + 2, ptr[0] );
4293 ptr[1] = (BYTE)result - 1;
4299 case 0x0b: /* GET STDIN STATUS */
4300 TRACE( "GET STDIN STATUS\n" );
4302 if (INT21_ReadChar( NULL, NULL ))
4303 SET_AL( context, 0xff ); /* character available */
4305 SET_AL( context, 0 ); /* no character available */
4309 case 0x0c: /* FLUSH BUFFER AND READ STANDARD INPUT */
4311 BYTE al = AL_reg(context); /* Input function to execute after flush. */
4313 TRACE( "FLUSH BUFFER AND READ STANDARD INPUT - 0x%02x\n", al );
4315 /* FIXME: buffers are not flushed */
4318 * If AL is one of 0x01, 0x06, 0x07, 0x08, or 0x0a,
4319 * int21 function identified by AL will be called.
4321 if(al == 0x01 || al == 0x06 || al == 0x07 || al == 0x08 || al == 0x0a)
4323 SET_AH( context, al );
4324 DOSVM_Int21Handler( context );
4329 case 0x0d: /* DISK BUFFER FLUSH */
4330 TRACE("DISK BUFFER FLUSH ignored\n");
4333 case 0x0e: /* SELECT DEFAULT DRIVE */
4334 TRACE( "SELECT DEFAULT DRIVE - %c:\n", 'A' + DL_reg(context) );
4335 INT21_SetCurrentDrive( DL_reg(context) );
4336 SET_AL( context, MAX_DOS_DRIVES );
4339 case 0x0f: /* OPEN FILE USING FCB */
4340 INT21_OpenFileUsingFCB( context );
4343 case 0x10: /* CLOSE FILE USING FCB */
4344 INT21_CloseFileUsingFCB( context );
4347 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
4348 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
4349 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
4350 if (!INT21_FindFirstFCB(context))
4352 SET_AL( context, 0xff );
4355 /* else fall through */
4357 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
4358 SET_AL( context, INT21_FindNextFCB(context) ? 0x00 : 0xff );
4361 case 0x13: /* DELETE FILE USING FCB */
4362 INT_BARF( context, 0x21 );
4365 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
4366 INT21_SequentialReadFromFCB( context );
4369 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
4370 INT21_SequentialWriteToFCB( context );
4373 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
4374 case 0x17: /* RENAME FILE USING FCB */
4375 INT_BARF( context, 0x21 );
4378 case 0x18: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4379 SET_AL( context, 0 );
4382 case 0x19: /* GET CURRENT DEFAULT DRIVE */
4383 SET_AL( context, INT21_GetCurrentDrive() );
4384 TRACE( "GET CURRENT DRIVE -> %c:\n", 'A' + AL_reg( context ) );
4387 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
4388 TRACE( "SET DISK TRANSFER AREA ADDRESS %04X:%04X\n",
4389 context->SegDs, DX_reg(context) );
4391 TDB *task = GlobalLock16( GetCurrentTask() );
4392 task->dta = MAKESEGPTR( context->SegDs, DX_reg(context) );
4396 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
4397 if (!INT21_GetDriveAllocInfo(context, 0))
4398 SET_AX( context, 0xffff );
4401 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
4402 if (!INT21_GetDriveAllocInfo(context, DL_reg(context)))
4403 SET_AX( context, 0xffff );
4406 case 0x1d: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4407 case 0x1e: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4408 SET_AL( context, 0 );
4411 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
4413 BYTE drive = INT21_MapDrive( 0 );
4414 TRACE( "GET DPB FOR DEFAULT DRIVE\n" );
4416 if (INT21_FillDrivePB( drive ))
4418 SET_AL( context, 0x00 ); /* success */
4419 SET_BX( context, offsetof( INT21_HEAP, misc_dpb_list[drive] ) );
4420 context->SegDs = INT21_GetHeapSelector( context );
4424 SET_AL( context, 0xff ); /* invalid or network drive */
4429 case 0x20: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
4430 SET_AL( context, 0 );
4433 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
4434 INT21_ReadRandomRecordFromFCB( context );
4437 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
4438 INT21_WriteRandomRecordToFCB( context );
4441 case 0x23: /* GET FILE SIZE FOR FCB */
4442 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
4443 INT_BARF( context, 0x21 );
4446 case 0x25: /* SET INTERRUPT VECTOR */
4447 TRACE("SET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
4449 FARPROC16 ptr = (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context) );
4450 if (!ISV86(context) && DOSVM_IsWin16())
4451 DOSVM_SetPMHandler16( AL_reg(context), ptr );
4453 DOSVM_SetRMHandler( AL_reg(context), ptr );
4457 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
4458 INT_BARF( context, 0x21 );
4461 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
4462 INT21_RandomBlockReadFromFCB( context );
4465 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
4466 INT21_RandomBlockWriteToFCB( context );
4469 case 0x29: /* PARSE FILENAME INTO FCB */
4470 INT21_ParseFileNameIntoFCB(context);
4473 case 0x2a: /* GET SYSTEM DATE */
4474 TRACE( "GET SYSTEM DATE\n" );
4477 GetLocalTime( &systime );
4478 SET_CX( context, systime.wYear );
4479 SET_DH( context, systime.wMonth );
4480 SET_DL( context, systime.wDay );
4481 SET_AL( context, systime.wDayOfWeek );
4485 case 0x2b: /* SET SYSTEM DATE */
4486 TRACE( "SET SYSTEM DATE\n" );
4488 WORD year = CX_reg(context);
4489 BYTE month = DH_reg(context);
4490 BYTE day = DL_reg(context);
4492 if (year >= 1980 && year <= 2099 &&
4493 month >= 1 && month <= 12 &&
4494 day >= 1 && day <= 31)
4496 FIXME( "SetSystemDate(%02d/%02d/%04d): not allowed\n",
4498 SET_AL( context, 0 ); /* Let's pretend we succeeded */
4502 SET_AL( context, 0xff ); /* invalid date */
4503 TRACE( "SetSystemDate(%02d/%02d/%04d): invalid date\n",
4509 case 0x2c: /* GET SYSTEM TIME */
4510 TRACE( "GET SYSTEM TIME\n" );
4513 GetLocalTime( &systime );
4514 SET_CH( context, systime.wHour );
4515 SET_CL( context, systime.wMinute );
4516 SET_DH( context, systime.wSecond );
4517 SET_DL( context, systime.wMilliseconds / 10 );
4521 case 0x2d: /* SET SYSTEM TIME */
4522 if( CH_reg(context) >= 24 || CL_reg(context) >= 60 || DH_reg(context) >= 60 || DL_reg(context) >= 100 ) {
4523 TRACE("SetSystemTime(%02d:%02d:%02d.%02d): wrong time\n",
4524 CH_reg(context), CL_reg(context),
4525 DH_reg(context), DL_reg(context) );
4526 SET_AL( context, 0xFF );
4530 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
4531 CH_reg(context), CL_reg(context),
4532 DH_reg(context), DL_reg(context) );
4533 SET_AL( context, 0 ); /* Let's pretend we succeeded */
4537 case 0x2e: /* SET VERIFY FLAG */
4538 TRACE("SET VERIFY FLAG ignored\n");
4539 /* we cannot change the behaviour anyway, so just ignore it */
4542 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
4543 TRACE( "GET DISK TRANSFER AREA ADDRESS\n" );
4545 TDB *task = GlobalLock16( GetCurrentTask() );
4546 context->SegEs = SELECTOROF( task->dta );
4547 SET_BX( context, OFFSETOF( task->dta ) );
4551 case 0x30: /* GET DOS VERSION */
4552 TRACE( "GET DOS VERSION - %s requested\n",
4553 (AL_reg(context) == 0x00) ? "OEM number" : "version flag" );
4555 if (AL_reg(context) == 0x00)
4556 SET_BH( context, 0xff ); /* OEM number => undefined */
4558 SET_BH( context, 0x08 ); /* version flag => DOS is in ROM */
4560 SET_AL( context, HIBYTE(HIWORD(GetVersion16())) ); /* major version */
4561 SET_AH( context, LOBYTE(HIWORD(GetVersion16())) ); /* minor version */
4563 SET_BL( context, 0x12 ); /* 0x123456 is 24-bit Wine's serial # */
4564 SET_CX( context, 0x3456 );
4567 case 0x31: /* TERMINATE AND STAY RESIDENT */
4568 FIXME("TERMINATE AND STAY RESIDENT stub\n");
4571 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
4573 BYTE drive = INT21_MapDrive( DL_reg(context) );
4574 TRACE( "GET DPB FOR SPECIFIC DRIVE %d\n", DL_reg(context) );
4576 if (INT21_FillDrivePB( drive ))
4578 SET_AL( context, 0x00 ); /* success */
4579 SET_BX( context, offsetof( INT21_HEAP, misc_dpb_list[drive] ) );
4580 context->SegDs = INT21_GetHeapSelector( context );
4584 SET_AL( context, 0xff ); /* invalid or network drive */
4589 case 0x33: /* MULTIPLEXED */
4590 switch (AL_reg(context))
4592 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
4593 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
4594 SET_DL( context, brk_flag );
4597 case 0x01: /* SET EXTENDED BREAK STATE */
4598 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
4599 brk_flag = (DL_reg(context) > 0) ? 1 : 0;
4602 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
4603 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
4604 /* ugly coding in order to stay reentrant */
4605 if (DL_reg(context))
4607 SET_DL( context, brk_flag );
4612 SET_DL( context, brk_flag );
4617 case 0x05: /* GET BOOT DRIVE */
4618 TRACE("GET BOOT DRIVE\n");
4619 SET_DL( context, 3 );
4620 /* c: is Wine's bootdrive (a: is 1)*/
4623 case 0x06: /* GET TRUE VERSION NUMBER */
4624 TRACE("GET TRUE VERSION NUMBER\n");
4625 SET_BL( context, HIBYTE(HIWORD(GetVersion16())) ); /* major */
4626 SET_BH( context, LOBYTE(HIWORD(GetVersion16())) ); /* minor */
4627 SET_DL( context, 0x00 ); /* revision */
4628 SET_DH( context, 0x08 ); /* DOS is in ROM */
4632 INT_BARF( context, 0x21 );
4637 case 0x34: /* GET ADDRESS OF INDOS FLAG */
4638 TRACE( "GET ADDRESS OF INDOS FLAG\n" );
4639 context->SegEs = INT21_GetHeapSelector( context );
4640 SET_BX( context, offsetof(INT21_HEAP, misc_indos) );
4643 case 0x35: /* GET INTERRUPT VECTOR */
4644 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
4647 if (!ISV86(context) && DOSVM_IsWin16())
4648 addr = DOSVM_GetPMHandler16( AL_reg(context) );
4650 addr = DOSVM_GetRMHandler( AL_reg(context) );
4651 context->SegEs = SELECTOROF(addr);
4652 SET_BX( context, OFFSETOF(addr) );
4656 case 0x36: /* GET FREE DISK SPACE */
4657 TRACE("GET FREE DISK SPACE FOR DRIVE %s (limited to about 1GB)\n",
4658 INT21_DriveName( DL_reg(context) ));
4659 if (!INT21_GetFreeDiskSpace(context)) SET_AX( context, 0xffff );
4662 case 0x37: /* SWITCHAR */
4664 switch (AL_reg(context))
4666 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
4667 TRACE( "SWITCHAR - GET SWITCH CHARACTER\n" );
4668 SET_AL( context, 0x00 ); /* success*/
4669 SET_DL( context, '/' );
4671 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
4672 FIXME( "SWITCHAR - SET SWITCH CHARACTER: %c\n",
4674 SET_AL( context, 0x00 ); /* success*/
4677 INT_BARF( context, 0x21 );
4683 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
4684 TRACE( "GET COUNTRY-SPECIFIC INFORMATION\n" );
4685 if (AL_reg(context))
4687 WORD country = AL_reg(context);
4688 if (country == 0xff)
4689 country = BX_reg(context);
4690 if (country != INT21_GetSystemCountryCode()) {
4691 FIXME( "Requested info on non-default country %04x\n", country );
4696 if(AX_reg(context) != 2 )
4698 INT21_FillCountryInformation( CTX_SEG_OFF_TO_LIN(context,
4701 SET_AX( context, INT21_GetSystemCountryCode() );
4702 SET_BX( context, INT21_GetSystemCountryCode() );
4703 RESET_CFLAG(context);
4707 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
4708 if (!INT21_CreateDirectory( context ))
4709 bSetDOSExtendedError = TRUE;
4711 RESET_CFLAG(context);
4714 case 0x3a: /* "RMDIR" - REMOVE DIRECTORY */
4716 WCHAR dirW[MAX_PATH];
4717 char *dirA = CTX_SEG_OFF_TO_LIN(context,
4718 context->SegDs, context->Edx);
4720 TRACE( "REMOVE DIRECTORY %s\n", dirA );
4722 MultiByteToWideChar(CP_OEMCP, 0, dirA, -1, dirW, MAX_PATH);
4724 if (!RemoveDirectoryW( dirW ))
4725 bSetDOSExtendedError = TRUE;
4727 RESET_CFLAG(context);
4731 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
4732 if (!INT21_SetCurrentDirectory( context ))
4733 bSetDOSExtendedError = TRUE;
4735 RESET_CFLAG(context);
4738 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
4739 if (!INT21_CreateFile( context, context->Edx, FALSE,
4740 OF_READWRITE | OF_SHARE_COMPAT, 0x12 ))
4741 bSetDOSExtendedError = TRUE;
4743 RESET_CFLAG(context);
4746 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
4747 if (!INT21_CreateFile( context, context->Edx, FALSE,
4748 AL_reg(context), 0x01 ))
4749 bSetDOSExtendedError = TRUE;
4751 RESET_CFLAG(context);
4754 case 0x3e: /* "CLOSE" - CLOSE FILE */
4755 TRACE( "CLOSE handle %d\n", BX_reg(context) );
4756 if (_lclose16( BX_reg(context) ) == HFILE_ERROR16)
4757 bSetDOSExtendedError = TRUE;
4759 RESET_CFLAG(context);
4762 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
4763 TRACE( "READ from %d to %04X:%04X for %d bytes\n",
4770 WORD count = CX_reg(context);
4771 BYTE *buffer = CTX_SEG_OFF_TO_LIN( context,
4775 /* Some programs pass a count larger than the allocated buffer */
4776 if (DOSVM_IsWin16())
4778 DWORD maxcount = GetSelectorLimit16( context->SegDs )
4779 - DX_reg(context) + 1;
4780 if (count > maxcount)
4785 * FIXME: Reading from console (BX=1) in DOS mode
4786 * does not work as it is supposed to work.
4789 RESET_CFLAG(context); /* set if error */
4790 if (!DOSVM_IsWin16() && BX_reg(context) == 0)
4792 result = INT21_BufferedInput( context, buffer, count );
4793 SET_AX( context, (WORD)result );
4795 else if (ReadFile( DosFileHandleToWin32Handle(BX_reg(context)),
4796 buffer, count, &result, NULL ))
4797 SET_AX( context, (WORD)result );
4799 bSetDOSExtendedError = TRUE;
4803 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
4804 TRACE( "WRITE from %04X:%04X to handle %d for %d byte\n",
4805 context->SegDs, DX_reg(context),
4806 BX_reg(context), CX_reg(context) );
4808 char *ptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
4810 if (!DOSVM_IsWin16() &&
4811 (BX_reg(context) == 1 || BX_reg(context) == 2))
4814 for(i=0; i<CX_reg(context); i++)
4815 DOSVM_PutChar(ptr[i]);
4816 SET_AX(context, CX_reg(context));
4817 RESET_CFLAG(context);
4821 HFILE handle = (HFILE)DosFileHandleToWin32Handle(BX_reg(context));
4822 LONG result = _hwrite( handle, ptr, CX_reg(context) );
4823 if (result == HFILE_ERROR)
4824 bSetDOSExtendedError = TRUE;
4827 SET_AX( context, (WORD)result );
4828 RESET_CFLAG(context);
4834 case 0x41: /* "UNLINK" - DELETE FILE */
4836 WCHAR fileW[MAX_PATH];
4837 char *fileA = CTX_SEG_OFF_TO_LIN(context,
4841 TRACE( "UNLINK %s\n", fileA );
4842 MultiByteToWideChar(CP_OEMCP, 0, fileA, -1, fileW, MAX_PATH);
4844 if (!DeleteFileW( fileW ))
4845 bSetDOSExtendedError = TRUE;
4847 RESET_CFLAG(context);
4851 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
4852 TRACE( "LSEEK handle %d offset %d from %s\n",
4854 MAKELONG( DX_reg(context), CX_reg(context) ),
4855 (AL_reg(context) == 0) ?
4856 "start of file" : ((AL_reg(context) == 1) ?
4857 "current file position" : "end of file") );
4859 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
4860 LONG offset = MAKELONG( DX_reg(context), CX_reg(context) );
4861 DWORD status = SetFilePointer( handle, offset,
4862 NULL, AL_reg(context) );
4863 if (status == INVALID_SET_FILE_POINTER)
4864 bSetDOSExtendedError = TRUE;
4867 SET_AX( context, LOWORD(status) );
4868 SET_DX( context, HIWORD(status) );
4869 RESET_CFLAG(context);
4874 case 0x43: /* FILE ATTRIBUTES */
4875 if (!INT21_FileAttributes( context, AL_reg(context), FALSE ))
4876 bSetDOSExtendedError = TRUE;
4878 RESET_CFLAG(context);
4881 case 0x44: /* IOCTL */
4882 INT21_Ioctl( context );
4885 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
4886 TRACE( "DUPLICATE FILE HANDLE %d\n", BX_reg(context) );
4889 HFILE handle16 = HFILE_ERROR;
4891 if (DuplicateHandle( GetCurrentProcess(),
4892 DosFileHandleToWin32Handle(BX_reg(context)),
4893 GetCurrentProcess(),
4895 0, TRUE, DUPLICATE_SAME_ACCESS ))
4896 handle16 = Win32HandleToDosFileHandle(handle32);
4898 if (handle16 == HFILE_ERROR)
4899 bSetDOSExtendedError = TRUE;
4902 SET_AX( context, handle16 );
4903 RESET_CFLAG(context);
4908 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
4909 TRACE( "FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
4910 BX_reg(context), CX_reg(context) );
4911 if (!INT21_Dup2(BX_reg(context), CX_reg(context)))
4912 bSetDOSExtendedError = TRUE;
4914 RESET_CFLAG(context);
4917 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
4918 if (!INT21_GetCurrentDirectory( context, FALSE ))
4919 bSetDOSExtendedError = TRUE;
4921 RESET_CFLAG(context);
4924 case 0x48: /* ALLOCATE MEMORY */
4925 TRACE( "ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context) );
4928 DWORD bytes = (DWORD)BX_reg(context) << 4;
4930 if (!ISV86(context) && DOSVM_IsWin16())
4932 DWORD rv = GlobalDOSAlloc16( bytes );
4933 selector = LOWORD( rv );
4936 DOSMEM_AllocBlock( bytes, &selector );
4940 SET_AX( context, selector );
4941 RESET_CFLAG(context);
4946 SET_AX( context, 0x0008 ); /* insufficient memory */
4947 SET_BX( context, DOSMEM_Available() >> 4 );
4952 case 0x49: /* FREE MEMORY */
4953 TRACE( "FREE MEMORY segment %04X\n", context->SegEs );
4957 if (!ISV86(context) && DOSVM_IsWin16())
4959 ok = !GlobalDOSFree16( context->SegEs );
4961 /* If we don't reset ES_reg, we will fail in the relay code */
4966 ok = DOSMEM_FreeBlock( PTR_REAL_TO_LIN(context->SegEs, 0) );
4970 TRACE("FREE MEMORY failed\n");
4972 SET_AX( context, 0x0009 ); /* memory block address invalid */
4977 case 0x4a: /* RESIZE MEMORY BLOCK */
4978 TRACE( "RESIZE MEMORY segment %04X to %d paragraphs\n",
4979 context->SegEs, BX_reg(context) );
4981 DWORD newsize = (DWORD)BX_reg(context) << 4;
4983 if (!ISV86(context) && DOSVM_IsWin16())
4985 FIXME( "Resize memory block - unsupported under Win16\n" );
4990 LPVOID address = (void*)(context->SegEs << 4);
4991 UINT blocksize = DOSMEM_ResizeBlock( address, newsize, FALSE );
4993 RESET_CFLAG(context);
4994 if (blocksize == (UINT)-1)
4996 SET_CFLAG( context );
4997 SET_AX( context, 0x0009 ); /* illegal address */
4999 else if(blocksize != newsize)
5001 SET_CFLAG( context );
5002 SET_AX( context, 0x0008 ); /* insufficient memory */
5003 SET_BX( context, blocksize >> 4 ); /* new block size */
5009 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
5011 char *program = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
5012 BYTE *paramblk = CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx);
5014 TRACE( "EXEC %s\n", program );
5016 RESET_CFLAG(context);
5017 if (DOSVM_IsWin16())
5019 HINSTANCE16 instance = WinExec16( program, SW_NORMAL );
5022 SET_CFLAG( context );
5023 SET_AX( context, instance );
5028 if (!MZ_Exec( context, program, AL_reg(context), paramblk))
5029 bSetDOSExtendedError = TRUE;
5034 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
5035 TRACE( "EXIT with return code %d\n", AL_reg(context) );
5036 if (DOSVM_IsWin16())
5037 DOSVM_Exit( AL_reg(context) );
5038 else if(ISV86(context))
5039 MZ_Exit( context, FALSE, AL_reg(context) );
5045 ULONG_PTR rv = AL_reg(context);
5046 RaiseException( EXCEPTION_VM86_INTx, 0, 1, &rv );
5050 case 0x4d: /* GET RETURN CODE */
5051 TRACE("GET RETURN CODE (ERRORLEVEL)\n");
5052 SET_AX( context, DOSVM_retval );
5056 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
5057 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
5058 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
5059 if (!INT21_FindFirst(context)) break;
5062 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
5063 TRACE("FINDNEXT\n");
5064 if (!INT21_FindNext(context))
5066 SetLastError( ERROR_NO_MORE_FILES );
5067 SET_AX( context, ERROR_NO_MORE_FILES );
5070 else SET_AX( context, 0 ); /* OK */
5073 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
5074 TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
5075 DOSVM_psp = BX_reg(context);
5078 case 0x51: /* GET PSP ADDRESS */
5079 INT21_GetPSP( context );
5082 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
5084 SEGPTR ptr = DOSDEV_GetLOL( ISV86(context) || !DOSVM_IsWin16() );
5085 context->SegEs = SELECTOROF(ptr);
5086 SET_BX( context, OFFSETOF(ptr) );
5090 case 0x54: /* Get Verify Flag */
5091 TRACE("Get Verify Flag - Not Supported\n");
5092 SET_AL( context, 0x00 ); /* pretend we can tell. 00h = off 01h = on */
5095 case 0x56: /* "RENAME" - RENAME FILE */
5096 if (!INT21_RenameFile( context ))
5097 bSetDOSExtendedError = TRUE;
5099 RESET_CFLAG(context);
5102 case 0x57: /* FILE DATE AND TIME */
5103 if (!INT21_FileDateTime( context ))
5104 bSetDOSExtendedError = TRUE;
5106 RESET_CFLAG(context);
5109 case 0x58: /* GET OR SET MEMORY ALLOCATION STRATEGY */
5110 switch (AL_reg(context))
5112 case 0x00: /* GET MEMORY ALLOCATION STRATEGY */
5113 TRACE( "GET MEMORY ALLOCATION STRATEGY\n" );
5114 SET_AX( context, 0 ); /* low memory first fit */
5117 case 0x01: /* SET ALLOCATION STRATEGY */
5118 TRACE( "SET MEMORY ALLOCATION STRATEGY to %d - ignored\n",
5122 case 0x02: /* GET UMB LINK STATE */
5123 TRACE( "GET UMB LINK STATE\n" );
5124 SET_AL( context, 0 ); /* UMBs not part of DOS memory chain */
5127 case 0x03: /* SET UMB LINK STATE */
5128 TRACE( "SET UMB LINK STATE to %d - ignored\n",
5133 INT_BARF( context, 0x21 );
5137 case 0x59: /* GET EXTENDED ERROR INFO */
5138 INT21_GetExtendedError( context );
5141 case 0x5a: /* CREATE TEMPORARY FILE */
5142 TRACE("CREATE TEMPORARY FILE\n");
5143 bSetDOSExtendedError = !INT21_CreateTempFile(context);
5146 case 0x5b: /* CREATE NEW FILE */
5147 if (!INT21_CreateFile( context, context->Edx, FALSE,
5148 OF_READWRITE | OF_SHARE_COMPAT, 0x10 ))
5149 bSetDOSExtendedError = TRUE;
5151 RESET_CFLAG(context);
5154 case 0x5c: /* "FLOCK" - RECORD LOCKING */
5156 DWORD offset = MAKELONG(DX_reg(context), CX_reg(context));
5157 DWORD length = MAKELONG(DI_reg(context), SI_reg(context));
5158 HANDLE handle = DosFileHandleToWin32Handle(BX_reg(context));
5160 RESET_CFLAG(context);
5161 switch (AL_reg(context))
5163 case 0x00: /* LOCK */
5164 TRACE( "lock handle %d offset %d length %d\n",
5165 BX_reg(context), offset, length );
5166 if (!LockFile( handle, offset, 0, length, 0 ))
5167 bSetDOSExtendedError = TRUE;
5170 case 0x01: /* UNLOCK */
5171 TRACE( "unlock handle %d offset %d length %d\n",
5172 BX_reg(context), offset, length );
5173 if (!UnlockFile( handle, offset, 0, length, 0 ))
5174 bSetDOSExtendedError = TRUE;
5178 INT_BARF( context, 0x21 );
5183 case 0x5d: /* NETWORK 5D */
5184 FIXME( "Network function 5D not implemented.\n" );
5185 SetLastError( ER_NoNetwork );
5186 bSetDOSExtendedError = TRUE;
5189 case 0x5e: /* NETWORK 5E */
5190 bSetDOSExtendedError = INT21_NetworkFunc( context);
5193 case 0x5f: /* NETWORK 5F */
5194 /* FIXME: supporting this would need to 1:
5195 * - implement per drive current directory (as kernel32 doesn't)
5196 * - assign enabled/disabled flag on a per drive basis
5198 /* network software not installed */
5199 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
5200 SetLastError( ER_NoNetwork );
5201 bSetDOSExtendedError = TRUE;
5204 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
5206 WCHAR pathW[MAX_PATH], res[MAX_PATH];
5207 /* FIXME: likely to be broken */
5209 TRACE("TRUENAME %s\n",
5210 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
5211 MultiByteToWideChar(CP_OEMCP, 0, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi), -1, pathW, MAX_PATH);
5212 if (!GetFullPathNameW( pathW, 128, res, NULL ))
5213 bSetDOSExtendedError = TRUE;
5216 SET_AX( context, 0 );
5217 WideCharToMultiByte(CP_OEMCP, 0, res, -1,
5218 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi),
5224 case 0x61: /* UNUSED */
5225 SET_AL( context, 0 );
5228 case 0x62: /* GET PSP ADDRESS */
5229 INT21_GetPSP( context );
5232 case 0x63: /* MISC. LANGUAGE SUPPORT */
5233 switch (AL_reg(context)) {
5234 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
5235 TRACE( "GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE\n" );
5236 context->SegDs = INT21_GetHeapSelector( context );
5237 SET_SI( context, offsetof(INT21_HEAP, dbcs_table) );
5238 SET_AL( context, 0 ); /* success */
5243 case 0x64: /* OS/2 DOS BOX */
5244 INT_BARF( context, 0x21 );
5248 case 0x65: /* EXTENDED COUNTRY INFORMATION */
5249 INT21_ExtendedCountryInformation( context );
5252 case 0x66: /* GLOBAL CODE PAGE TABLE */
5253 switch (AL_reg(context))
5256 TRACE( "GET GLOBAL CODE PAGE TABLE\n" );
5257 SET_BX( context, GetOEMCP() );
5258 SET_DX( context, GetOEMCP() );
5261 FIXME( "SET GLOBAL CODE PAGE TABLE, active %d, system %d - ignored\n",
5262 BX_reg(context), DX_reg(context) );
5267 case 0x67: /* SET HANDLE COUNT */
5268 TRACE( "SET HANDLE COUNT to %d\n", BX_reg(context) );
5269 if (SetHandleCount( BX_reg(context) ) < BX_reg(context) )
5270 bSetDOSExtendedError = TRUE;
5273 case 0x68: /* "FFLUSH" - COMMIT FILE */
5274 TRACE( "FFLUSH - handle %d\n", BX_reg(context) );
5275 if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
5276 bSetDOSExtendedError = TRUE;
5279 case 0x69: /* DISK SERIAL NUMBER */
5280 switch (AL_reg(context))
5283 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
5284 INT21_DriveName(BL_reg(context)));
5285 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
5286 else SET_AX( context, 0 );
5290 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
5291 INT21_DriveName(BL_reg(context)));
5292 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
5293 else SET_AX( context, 1 );
5298 case 0x6a: /* COMMIT FILE */
5299 TRACE( "COMMIT FILE - handle %d\n", BX_reg(context) );
5300 if (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ))
5301 bSetDOSExtendedError = TRUE;
5304 case 0x6b: /* NULL FUNCTION FOR CP/M COMPATIBILITY */
5305 SET_AL( context, 0 );
5308 case 0x6c: /* EXTENDED OPEN/CREATE */
5309 if (!INT21_CreateFile( context, context->Esi, TRUE,
5310 BX_reg(context), DL_reg(context) ))
5311 bSetDOSExtendedError = TRUE;
5314 case 0x70: /* MSDOS 7 - GET/SET INTERNATIONALIZATION INFORMATION */
5315 FIXME( "MS-DOS 7 - GET/SET INTERNATIONALIZATION INFORMATION\n" );
5316 SET_CFLAG( context );
5317 SET_AL( context, 0 );
5320 case 0x71: /* MSDOS 7 - LONG FILENAME FUNCTIONS */
5321 INT21_LongFilename( context );
5324 case 0x73: /* MSDOS7 - FAT32 */
5325 RESET_CFLAG( context );
5326 if (!INT21_Fat32( context ))
5327 bSetDOSExtendedError = TRUE;
5330 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
5331 TRACE( "CONNECTION SERVICES - GET CONNECTION NUMBER - ignored\n" );
5334 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
5335 TRACE( "NOVELL NETWARE - RETURN SHELL VERSION - ignored\n" );
5338 case 0xff: /* DOS32 EXTENDER (DOS/4GW) - API */
5339 /* we don't implement a DOS32 extender */
5340 TRACE( "DOS32 EXTENDER API - ignored\n" );
5344 INT_BARF( context, 0x21 );
5347 } /* END OF SWITCH */
5349 /* Set general error condition. */
5350 if (bSetDOSExtendedError)
5352 SET_AX( context, GetLastError() );
5353 SET_CFLAG( context );
5356 /* Print error code if carry flag is set. */
5357 if (context->EFlags & 0x0001)
5358 TRACE("failed, error %d\n", GetLastError() );
5360 TRACE( "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
5361 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08x\n",
5362 AX_reg(context), BX_reg(context),
5363 CX_reg(context), DX_reg(context),
5364 SI_reg(context), DI_reg(context),
5365 (WORD)context->SegDs, (WORD)context->SegEs,