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
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
32 #ifdef HAVE_SYS_FILE_H
33 # include <sys/file.h>
36 #ifdef HAVE_SYS_TIME_H
37 # include <sys/time.h>
39 #include <sys/types.h>
51 #include "winuser.h" /* SW_NORMAL */
52 #include "wine/winbase16.h"
60 #include "wine/unicode.h"
61 #include "wine/debug.h"
63 WINE_DEFAULT_DEBUG_CHANNEL(int21);
64 #if defined(__svr4__) || defined(_SCO_DS)
65 /* SVR4 DOESNT do locking the same way must implement properly */
72 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
74 /* Define the drive parameter block, as used by int21/1F
75 * and int21/32. This table can be accessed through the
76 * global 'dpb' pointer, which points into the local dos
81 BYTE drive_num; /* 0=A, etc. */
82 BYTE unit_num; /* Drive's unit number (?) */
83 WORD sector_size; /* Sector size in bytes */
84 BYTE high_sector; /* Highest sector in a cluster */
85 BYTE shift; /* Shift count (?) */
86 WORD reserved; /* Number of reserved sectors at start */
87 BYTE num_FAT; /* Number of FATs */
88 WORD dir_entries; /* Number of root dir entries */
89 WORD first_data; /* First data sector */
90 WORD high_cluster; /* Highest cluster number */
91 WORD sectors_in_FAT; /* Number of sectors per FAT */
92 WORD start_dir; /* Starting sector of first dir */
93 DWORD driver_head; /* Address of device driver header (?) */
94 BYTE media_ID; /* Media ID */
95 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
96 DWORD next; /* Pointer to next DPB in list */
97 WORD free_search; /* Free cluster search start */
98 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
101 struct EDPB /* FAT32 extended Drive Parameter Block */
102 { /* from Ralf Brown's Interrupt List */
103 struct DPB dpb; /* first 24 bytes = original DPB */
105 BYTE edpb_flags; /* undocumented/unknown flags */
106 DWORD next_edpb; /* pointer to next EDPB */
107 WORD free_cluster; /* cluster to start search for free space on write, typically
108 the last cluster allocated */
109 WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
110 WORD clusters_free_hi; /* hiword of clusters_free */
111 WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
112 /* bits 0-3 = 0-based number of the active FAT */
113 WORD info_sector; /* sector number of file system info sector, or FFFF for none */
114 WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
115 DWORD first_cluster; /* sector number of the first cluster */
116 DWORD max_cluster; /* sector number of the last cluster */
117 DWORD fat_clusters; /* number of clusters occupied by FAT */
118 DWORD root_cluster; /* cluster number of start of root directory */
119 DWORD free_cluster2; /* same as free_cluster: cluster at which to start
120 search for free space when writing */
132 BYTE DummyDBCSLeadTable[6];
134 static struct DosHeap *heap;
135 static WORD DosHeapHandle;
137 extern char TempDirectory[];
139 static void INT21_ReadConfigSys(void)
142 if (!done) DOSCONF_ReadConfig();
146 static BOOL INT21_CreateHeap(void)
148 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
150 WARN("Out of memory\n");
153 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
154 dpbsegptr = MAKESEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
156 strcpy(heap->biosdate, "01/01/80");
157 memset(heap->DummyDBCSLeadTable, 0, 6);
161 static BYTE *GetCurrentDTA( CONTEXT86 *context )
163 TDB *pTask = TASK_GetCurrent();
165 /* FIXME: This assumes DTA was set correctly! */
166 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
167 (DWORD)OFFSETOF(pTask->dta) );
171 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
172 /* limited == TRUE is used with INT 0x21/0x440d */
177 setword(&data[3], 0);
179 setword(&data[6], 240);
180 setword(&data[8], 64000);
182 setword(&data[0x0b], 40);
183 setword(&data[0x0d], 56);
184 setword(&data[0x0f], 2);
185 setword(&data[0x11], 0);
187 setword(&data[0x1f], 800);
189 setword(&data[0x22], 1);
191 } else { /* 1.44mb */
194 setword(&data[3], 0);
196 setword(&data[6], 240);
197 setword(&data[8], 2880);
199 setword(&data[0x0b], 6);
200 setword(&data[0x0d], 18);
201 setword(&data[0x0f], 2);
202 setword(&data[0x11], 0);
204 setword(&data[0x1f], 80);
206 setword(&data[0x22], 2);
211 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
213 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
214 char root[] = "A:\\";
216 *root += DOS_GET_DRIVE( DL_reg(context) );
217 if (!GetDiskFreeSpaceA( root, &cluster_sectors, §or_bytes,
218 &free_clusters, &total_clusters )) return 0;
219 AX_reg(context) = cluster_sectors;
220 BX_reg(context) = free_clusters;
221 CX_reg(context) = sector_bytes;
222 DX_reg(context) = total_clusters;
226 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
228 if (!INT21_GetFreeDiskSpace( context )) return 0;
229 if (!heap && !INT21_CreateHeap()) return 0;
230 heap->mediaID = 0xf0;
231 context->SegDs = DosHeapHandle;
232 BX_reg(context) = (int)&heap->mediaID - (int)heap;
236 static int FillInDrivePB( int drive )
238 if(!DRIVE_IsValid(drive))
240 SetLastError( ERROR_INVALID_DRIVE );
243 else if (heap || INT21_CreateHeap())
245 /* FIXME: I have no idea what a lot of this information should
246 * say or whether it even really matters since we're not allowing
247 * direct block access. However, some programs seem to depend on
248 * getting at least _something_ back from here. The 'next' pointer
249 * does worry me, though. Should we have a complete table of
250 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
252 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
253 heap->dpb.sector_size = 512;
254 heap->dpb.high_sector = 1;
255 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
256 heap->dpb.reserved = 0;
257 heap->dpb.num_FAT = 1;
258 heap->dpb.dir_entries = 2;
259 heap->dpb.first_data = 2;
260 heap->dpb.high_cluster = 64000;
261 heap->dpb.sectors_in_FAT = 1;
262 heap->dpb.start_dir = 1;
263 heap->dpb.driver_head = 0;
264 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
265 heap->dpb.access_flag = 0;
267 heap->dpb.free_search = 0;
268 heap->dpb.free_clusters = 0xFFFF; /* unknown */
275 static void GetDrivePB( CONTEXT86 *context, int drive )
277 if (FillInDrivePB( drive ))
279 AL_reg(context) = 0x00;
280 context->SegDs = SELECTOROF(dpbsegptr);
281 BX_reg(context) = OFFSETOF(dpbsegptr);
285 AX_reg(context) = 0x00ff;
290 static void ioctlGetDeviceInfo( CONTEXT86 *context )
293 const DOS_DEVICE *dev;
295 TRACE("(%d)\n", BX_reg(context));
297 RESET_CFLAG(context);
300 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )))
302 DX_reg(context) = dev->flags;
306 /* it seems to be a file */
307 curr_drive = DRIVE_GetCurrentDrive();
308 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
310 /* bits 0-5 are current drive
311 * bit 6 - file has NOT been written..FIXME: correct?
312 * bit 8 - generate int24 if no diskspace on write/ read past end of file
313 * bit 11 - media not removable
314 * bit 14 - don't set file date/time on closing
315 * bit 15 - file is remote
319 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
321 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
322 int drive = DOS_GET_DRIVE( BL_reg(context) );
324 if (!DRIVE_IsValid(drive))
326 SetLastError( ERROR_FILE_NOT_FOUND );
330 if (CH_reg(context) != 0x08)
332 INT_BARF( context, 0x21 );
336 switch (CL_reg(context))
338 case 0x4a: /* lock logical volume */
339 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
342 case 0x60: /* get device parameters */
343 /* used by w4wgrp's winfile */
344 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
346 dataptr[6] = 0; /* media type */
349 dataptr[1] = 0x05; /* fixed disk */
350 setword(&dataptr[2], 0x01); /* non removable */
351 setword(&dataptr[4], 0x300); /* # of cylinders */
355 dataptr[1] = 0x07; /* block dev, floppy */
356 setword(&dataptr[2], 0x02); /* removable */
357 setword(&dataptr[4], 80); /* # of cylinders */
359 CreateBPB(drive, &dataptr[7], TRUE);
360 RESET_CFLAG(context);
363 case 0x41: /* write logical device track */
364 case 0x61: /* read logical device track */
366 BYTE drive = BL_reg(context) ?
367 BL_reg(context) : DRIVE_GetCurrentDrive();
368 WORD head = *(WORD *)dataptr+1;
369 WORD cyl = *(WORD *)dataptr+3;
370 WORD sect = *(WORD *)dataptr+5;
371 WORD nrsect = *(WORD *)dataptr+7;
372 BYTE *data = (BYTE *)dataptr+9;
373 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
375 raw_func = (CL_reg(context) == 0x41) ?
376 DRIVE_RawWrite : DRIVE_RawRead;
378 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
379 RESET_CFLAG(context);
382 AX_reg(context) = 0x1e; /* read fault */
387 case 0x66:/* get disk serial number */
389 char label[12],fsname[9],path[4];
392 strcpy(path,"x:\\");path[0]=drive+'A';
393 GetVolumeInformationA(
394 path,label,12,&serial,NULL,NULL,fsname,9
397 memcpy(dataptr+2,&serial,4);
398 memcpy(dataptr+6,label ,11);
399 memcpy(dataptr+17,fsname,8);
404 TRACE("logical volume %d unlocked.\n",drive);
408 memset(dataptr+1, '\0', dataptr[0]-1);
409 dataptr[1] = dataptr[0];
410 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
411 dataptr[3] = 0xFF; /* no physical drive */
415 /* Trail on error implementation */
416 AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_UNKNOWN ? 0x0f : 0x01;
417 SET_CFLAG(context); /* Seems to be set all the time */
421 INT_BARF( context, 0x21 );
426 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
429 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
431 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
437 AL_reg(context) = 0xff; /* failed */
439 TRACE("filename: '%s'\n", filename);
445 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
454 buffer_len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, NULL, 0);
455 buffer = HeapAlloc( GetProcessHeap(), 0, (buffer_len + 1) * sizeof(WCHAR));
456 len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, buffer, buffer_len);
458 DOSFS_ToDosFCBFormat(buffer, fcbW);
459 HeapFree(GetProcessHeap(), 0, buffer);
460 WideCharToMultiByte(CP_OEMCP, 0, fcbW, 12, fcb + 1, 12, NULL, NULL);
462 TRACE("FCB: '%s'\n", fcb + 1);
465 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
467 /* point DS:SI to first unparsed character */
468 SI_reg(context) += (int)s - (int)filename;
471 static void INT21_GetSystemDate( CONTEXT86 *context )
474 GetLocalTime( &systime );
475 CX_reg(context) = systime.wYear;
476 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
477 AX_reg(context) = systime.wDayOfWeek;
480 static void INT21_GetSystemTime( CONTEXT86 *context )
483 GetLocalTime( &systime );
484 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
485 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
488 /* Many calls translate a drive argument like this:
489 drive number (00h = default, 01h = A:, etc)
491 static char drivestring[]="default";
493 char *INT21_DriveName(int drive)
498 drivestring[0]= (unsigned char)drive + '@';
504 static BOOL INT21_CreateFile( CONTEXT86 *context )
506 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
507 context->Edx ), CX_reg(context) );
508 return (AX_reg(context) == (WORD)HFILE_ERROR16);
511 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
513 /* Mask off all flags not explicitly allowed by the doc */
514 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
515 return Win32HandleToDosFileHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
516 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
517 CREATE_NEW, attr, 0 ));
520 static void OpenExistingFile( CONTEXT86 *context )
522 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
524 if (AX_reg(context) == (WORD)HFILE_ERROR16)
526 AX_reg(context) = GetLastError();
531 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
533 BOOL bExtendedError = FALSE;
534 BYTE action = DL_reg(context);
536 /* Shuffle arguments to call OpenExistingFile */
537 AL_reg(context) = BL_reg(context);
538 DX_reg(context) = SI_reg(context);
539 /* BX,CX and DX should be preserved */
540 OpenExistingFile(context);
542 if ((context->EFlags & 0x0001) == 0) /* File exists */
544 UINT16 uReturnCX = 0;
546 /* Now decide what do do */
548 if ((action & 0x07) == 0)
550 _lclose16( AX_reg(context) );
551 AX_reg(context) = 0x0050; /*File exists*/
553 WARN("extended open/create: failed because file exists \n");
555 else if ((action & 0x07) == 2)
557 /* Truncate it, but first check if opened for write */
558 if ((BL_reg(context) & 0x0007)== 0)
560 _lclose16( AX_reg(context) );
561 WARN("extended open/create: failed, trunc on ro file\n");
562 AX_reg(context) = 0x000C; /*Access code invalid*/
567 TRACE("extended open/create: Closing before truncate\n");
568 if (_lclose16( AX_reg(context) ))
570 WARN("extended open/create: close before trunc failed\n");
571 AX_reg(context) = 0x0019; /*Seek Error*/
575 /* Shuffle arguments to call CreateFile */
577 TRACE("extended open/create: Truncating\n");
578 AL_reg(context) = BL_reg(context);
579 /* CX is still the same */
580 DX_reg(context) = SI_reg(context);
581 bExtendedError = INT21_CreateFile(context);
583 if (context->EFlags & 0x0001) /*no file open, flags set */
585 WARN("extended open/create: trunc failed\n");
586 return bExtendedError;
591 else uReturnCX = 0x1;
593 CX_reg(context) = uReturnCX;
595 else /* file does not exist */
597 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
598 if ((action & 0xF0)== 0)
602 WARN("extended open/create: failed, file dosen't exist\n");
606 /* Shuffle arguments to call CreateFile */
607 TRACE("extended open/create: Creating\n");
608 AL_reg(context) = BL_reg(context);
609 /* CX should still be the same */
610 DX_reg(context) = SI_reg(context);
611 bExtendedError = INT21_CreateFile(context);
612 if (context->EFlags & 0x0001) /*no file open, flags set */
614 WARN("extended open/create: create failed\n");
615 return bExtendedError;
621 return bExtendedError;
625 static BOOL INT21_ChangeDir( CONTEXT86 *context )
628 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
629 WCHAR dirnameW[MAX_PATH];
631 TRACE("changedir %s\n", dirname);
632 if (dirname[0] && (dirname[1] == ':'))
634 drive = toupper(dirname[0]) - 'A';
637 else drive = DRIVE_GetCurrentDrive();
638 MultiByteToWideChar(CP_OEMCP, 0, dirname, -1, dirnameW, MAX_PATH);
639 return DRIVE_Chdir( drive, dirnameW );
643 static int INT21_FindFirst( CONTEXT86 *context )
647 DOS_FULL_NAME full_name;
648 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
649 WCHAR pathW[MAX_PATH];
652 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
653 MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH);
655 dta->unixPath = NULL;
656 if (!DOSFS_GetFullName( pathW, FALSE, &full_name ))
658 AX_reg(context) = GetLastError();
662 dta->unixPath = HeapAlloc( GetProcessHeap(), 0, strlen(full_name.long_name)+1 );
663 strcpy( dta->unixPath, full_name.long_name );
664 p = strrchr( dta->unixPath, '/' );
667 MultiByteToWideChar(CP_OEMCP, 0, p + 1, -1, pathW, MAX_PATH);
669 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
670 * (doesn't matter as it is set below anyway)
672 if (!DOSFS_ToDosFCBFormat( pathW, maskW ))
674 HeapFree( GetProcessHeap(), 0, dta->unixPath );
675 dta->unixPath = NULL;
676 SetLastError( ERROR_FILE_NOT_FOUND );
677 AX_reg(context) = ERROR_FILE_NOT_FOUND;
681 WideCharToMultiByte(CP_OEMCP, 0, maskW, 12, dta->mask, sizeof(dta->mask), NULL, NULL);
682 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
683 : DRIVE_GetCurrentDrive();
685 dta->search_attr = CL_reg(context);
690 static int INT21_FindNext( CONTEXT86 *context )
692 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
693 WIN32_FIND_DATAA entry;
696 if (!dta->unixPath) return 0;
697 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
698 dta->search_attr, dta->count, &entry )))
700 HeapFree( GetProcessHeap(), 0, dta->unixPath );
701 dta->unixPath = NULL;
704 if ((int)dta->count + count > 0xffff)
706 WARN("Too many directory entries in %s\n", dta->unixPath );
707 HeapFree( GetProcessHeap(), 0, dta->unixPath );
708 dta->unixPath = NULL;
712 dta->fileattr = entry.dwFileAttributes;
713 dta->filesize = entry.nFileSizeLow;
714 FileTimeToDosDateTime( &entry.ftLastWriteTime,
715 &dta->filedate, &dta->filetime );
716 strcpy( dta->filename, entry.cAlternateFileName );
717 if (!memchr(dta->mask,'?',11)) {
718 /* wildcardless search, release resources in case no findnext will
719 * be issued, and as a workaround in case file creation messes up
720 * findnext, as sometimes happens with pkunzip */
721 HeapFree( GetProcessHeap(), 0, dta->unixPath );
722 dta->unixPath = NULL;
728 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
730 static int counter = 0;
731 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
732 char *p = name + strlen(name);
734 /* despite what Ralf Brown says, some programs seem to call without
735 * ending backslash (DOS accepts that, so we accept it too) */
736 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
740 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
741 counter = (counter + 1) % 1000;
743 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
745 TRACE("created %s\n", name );
748 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
753 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
755 int drive = DOS_GET_DRIVE( DL_reg(context) );
756 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
758 if (!DRIVE_IsValid(drive))
760 SetLastError( ERROR_INVALID_DRIVE );
763 WideCharToMultiByte(CP_OEMCP, 0, DRIVE_GetDosCwd(drive), -1, ptr, 64, NULL, NULL);
764 ptr[63] = 0; /* ensure 0 termination */
765 AX_reg(context) = 0x0100; /* success return code */
770 static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
772 if (heap || INT21_CreateHeap())
773 { /* return an empty table just as DOS 4.0+ does */
774 context->SegDs = DosHeapHandle;
775 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
779 AX_reg(context) = 0x1; /* error */
785 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
787 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
788 int drive = DOS_GET_DRIVE( BL_reg(context) );
790 if (!DRIVE_IsValid(drive))
792 SetLastError( ERROR_INVALID_DRIVE );
796 *(WORD *)dataptr = 0;
797 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
798 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
799 strncpy(dataptr + 0x11, "FAT16 ", 8);
804 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
806 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
807 int drive = DOS_GET_DRIVE( BL_reg(context) );
809 if (!DRIVE_IsValid(drive))
811 SetLastError( ERROR_INVALID_DRIVE );
815 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
820 /* microsoft's programmers should be shot for using CP/M style int21
821 calls in Windows for Workgroup's winfile.exe */
823 static int INT21_FindFirstFCB( CONTEXT86 *context )
825 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
830 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
831 else pFCB = (FINDFILE_FCB *)fcb;
832 drive = DOS_GET_DRIVE( pFCB->drive );
833 if (!DRIVE_IsValid( drive )) return 0;
834 root = DRIVE_GetRoot( drive );
835 cwd = DRIVE_GetUnixCwd( drive );
836 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
837 strlen(root)+strlen(cwd)+2 );
838 if (!pFCB->unixPath) return 0;
839 strcpy( pFCB->unixPath, root );
840 strcat( pFCB->unixPath, "/" );
841 strcat( pFCB->unixPath, cwd );
847 static int INT21_FindNextFCB( CONTEXT86 *context )
849 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
851 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
852 WIN32_FIND_DATAA entry;
856 if (*fcb == 0xff) /* extended FCB ? */
859 pFCB = (FINDFILE_FCB *)(fcb + 7);
864 pFCB = (FINDFILE_FCB *)fcb;
867 if (!pFCB->unixPath) return 0;
868 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
869 DOS_GET_DRIVE( pFCB->drive ), attr,
870 pFCB->count, &entry )))
872 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
873 pFCB->unixPath = NULL;
876 pFCB->count += count;
878 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
879 *(BYTE *)pResult = 0xff;
880 (BYTE *)pResult +=6; /* leave reserved field behind */
881 *(BYTE *)pResult = entry.dwFileAttributes;
884 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
886 pResult->fileattr = entry.dwFileAttributes;
887 pResult->cluster = 0; /* what else? */
888 pResult->filesize = entry.nFileSizeLow;
889 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
890 FileTimeToDosDateTime( &entry.ftLastWriteTime,
891 &pResult->filedate, &pResult->filetime );
893 /* Convert file name to FCB format */
895 memset( pResult->filename, ' ', sizeof(pResult->filename) );
896 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
897 else if (!strcmp( entry.cAlternateFileName, ".." ))
898 pResult->filename[0] = pResult->filename[1] = '.';
901 char *p = strrchr( entry.cAlternateFileName, '.' );
902 if (p && p[1] && (p != entry.cAlternateFileName))
904 memcpy( pResult->filename, entry.cAlternateFileName,
905 min( (p - entry.cAlternateFileName), 8 ) );
906 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
909 memcpy( pResult->filename, entry.cAlternateFileName,
910 min( strlen(entry.cAlternateFileName), 8 ) );
916 static void DeleteFileFCB( CONTEXT86 *context )
918 FIXME("(%p): stub\n", context);
921 static void RenameFileFCB( CONTEXT86 *context )
923 FIXME("(%p): stub\n", context);
928 static void fLock( CONTEXT86 * context )
931 switch ( AX_reg(context) & 0xff )
933 case 0x00: /* LOCK */
934 TRACE("lock handle %d offset %ld length %ld\n",
936 MAKELONG(DX_reg(context),CX_reg(context)),
937 MAKELONG(DI_reg(context),SI_reg(context))) ;
938 if (!LockFile(DosFileHandleToWin32Handle(BX_reg(context)),
939 MAKELONG(DX_reg(context),CX_reg(context)), 0,
940 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
941 AX_reg(context) = GetLastError();
946 case 0x01: /* UNLOCK */
947 TRACE("unlock handle %d offset %ld length %ld\n",
949 MAKELONG(DX_reg(context),CX_reg(context)),
950 MAKELONG(DI_reg(context),SI_reg(context))) ;
951 if (!UnlockFile(DosFileHandleToWin32Handle(BX_reg(context)),
952 MAKELONG(DX_reg(context),CX_reg(context)), 0,
953 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
954 AX_reg(context) = GetLastError();
959 AX_reg(context) = 0x0001;
966 INT21_networkfunc (CONTEXT86 *context)
968 switch (AL_reg(context)) {
969 case 0x00: /* Get machine name. */
971 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
972 TRACE("getting machine name to %p\n", dst);
973 if (gethostname (dst, 15))
976 SetLastError( ER_NoNetwork );
979 int len = strlen (dst);
983 CH_reg(context) = 1; /* Valid */
984 CL_reg(context) = 1; /* NETbios number??? */
985 TRACE("returning %s\n", debugstr_an (dst, 16));
991 SetLastError( ER_NoNetwork );
997 static void ASPI_DOS_HandleInt( CONTEXT86 *context )
999 if (!Dosvm.ASPIHandler && !DPMI_LoadDosSystem())
1001 ERR("could not setup ASPI handler\n");
1004 Dosvm.ASPIHandler( context );
1007 /***********************************************************************
1008 * INT21_GetExtendedError
1010 static void INT21_GetExtendedError( CONTEXT86 *context )
1012 BYTE class, action, locus;
1013 WORD error = GetLastError();
1018 class = action = locus = 0;
1020 case ERROR_DIR_NOT_EMPTY:
1025 case ERROR_ACCESS_DENIED:
1026 class = EC_AccessDenied;
1030 case ERROR_CANNOT_MAKE:
1031 class = EC_AccessDenied;
1035 case ERROR_DISK_FULL:
1036 case ERROR_HANDLE_DISK_FULL:
1037 class = EC_MediaError;
1041 case ERROR_FILE_EXISTS:
1042 case ERROR_ALREADY_EXISTS:
1047 case ERROR_FILE_NOT_FOUND:
1048 class = EC_NotFound;
1052 case ER_GeneralFailure:
1053 class = EC_SystemFailure;
1057 case ERROR_INVALID_DRIVE:
1058 class = EC_MediaError;
1062 case ERROR_INVALID_HANDLE:
1063 class = EC_ProgramError;
1067 case ERROR_LOCK_VIOLATION:
1068 class = EC_AccessDenied;
1072 case ERROR_NO_MORE_FILES:
1073 class = EC_MediaError;
1078 class = EC_NotFound;
1082 case ERROR_NOT_ENOUGH_MEMORY:
1083 class = EC_OutOfResource;
1087 case ERROR_PATH_NOT_FOUND:
1088 class = EC_NotFound;
1093 class = EC_NotFound;
1097 case ERROR_SHARING_VIOLATION:
1098 class = EC_Temporary;
1102 case ERROR_TOO_MANY_OPEN_FILES:
1103 class = EC_ProgramError;
1108 FIXME("Unknown error %d\n", error );
1109 class = EC_SystemFailure;
1114 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1115 error, class, action, locus );
1116 AX_reg(context) = error;
1117 BH_reg(context) = class;
1118 BL_reg(context) = action;
1119 CH_reg(context) = locus;
1122 /***********************************************************************
1123 * DOS3Call (KERNEL.102)
1124 * INT_Int21Handler (WPROCS.133)
1126 void WINAPI DOS3Call( CONTEXT86 *context )
1128 BOOL bSetDOSExtendedError = FALSE;
1131 TRACE("AX=%04x BX=%04x CX=%04x DX=%04x "
1132 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1133 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1134 SI_reg(context), DI_reg(context),
1135 (WORD)context->SegDs, (WORD)context->SegEs,
1139 if (AH_reg(context) == 0x59) /* Get extended error info */
1141 INT21_GetExtendedError( context );
1145 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1147 TRACE("FLUSH BUFFER AND READ STANDARD INPUT\n");
1148 /* no flush here yet */
1149 AH_reg(context) = AL_reg(context);
1152 if (AH_reg(context)>=0x2f) {
1153 /* extended error is used by (at least) functions 0x2f to 0x62 */
1156 RESET_CFLAG(context); /* Not sure if this is a good idea */
1158 switch(AH_reg(context))
1160 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1161 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1162 case 0x03: /* READ CHARACTER FROM STDAUX */
1163 case 0x04: /* WRITE CHARACTER TO STDAUX */
1164 case 0x05: /* WRITE CHARACTER TO PRINTER */
1165 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1166 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1167 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1168 case 0x0b: /* GET STDIN STATUS */
1169 case 0x0f: /* OPEN FILE USING FCB */
1170 case 0x10: /* CLOSE FILE USING FCB */
1171 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1172 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1173 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1174 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1175 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1176 case 0x23: /* GET FILE SIZE FOR FCB */
1177 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1178 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1179 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1180 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1181 case 0x4d: /* GET RETURN CODE */
1182 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1183 INT_BARF( context, 0x21 );
1186 case 0x00: /* TERMINATE PROGRAM */
1187 TRACE("TERMINATE PROGRAM\n");
1191 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1192 TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1193 context->SegDs,DX_reg(context) );
1195 LPSTR data = CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
1197 /* do NOT use strchr() to calculate the string length,
1198 as '\0' is valid string content, too !
1199 Maybe we should check for non-'$' strings, but DOS doesn't. */
1200 while (*p != '$') p++;
1201 _hwrite16( 1, data, (int)p - (int)data);
1202 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1206 case 0x0a: /* BUFFERED INPUT */
1208 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1212 TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
1214 TRACE("Handle old chars in buffer!\n");
1215 res=_lread16( 0, buffer+2,buffer[0]);
1217 if(buffer[res+1] == '\n')
1218 buffer[res+1] = '\r';
1222 case 0x2e: /* SET VERIFY FLAG */
1223 TRACE("SET VERIFY FLAG ignored\n");
1224 /* we cannot change the behaviour anyway, so just ignore it */
1227 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1231 case 0x6b: /* NULL FUNCTION */
1232 AL_reg(context) = 0;
1235 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1239 case 0x0d: /* DISK BUFFER FLUSH */
1240 TRACE("DISK BUFFER FLUSH ignored\n");
1241 RESET_CFLAG(context); /* dos 6+ only */
1244 case 0x0e: /* SELECT DEFAULT DRIVE */
1245 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1246 DRIVE_SetCurrentDrive( DL_reg(context) );
1247 AL_reg(context) = MAX_DOS_DRIVES;
1250 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1251 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
1252 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1253 if (!INT21_FindFirstFCB(context))
1255 AL_reg(context) = 0xff;
1258 /* else fall through */
1260 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1261 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1264 case 0x13: /* DELETE FILE USING FCB */
1265 DeleteFileFCB(context);
1268 case 0x17: /* RENAME FILE USING FCB */
1269 RenameFileFCB(context);
1272 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1273 AL_reg(context) = DRIVE_GetCurrentDrive();
1276 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1278 TDB *pTask = TASK_GetCurrent();
1279 pTask->dta = MAKESEGPTR(context->SegDs,DX_reg(context));
1280 TRACE("Set DTA: %08lx\n", pTask->dta);
1284 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1285 DL_reg(context) = 0;
1286 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1289 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1290 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1293 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1294 GetDrivePB(context, DRIVE_GetCurrentDrive());
1297 case 0x25: /* SET INTERRUPT VECTOR */
1298 INT_SetPMHandler( AL_reg(context), (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context)));
1301 case 0x29: /* PARSE FILENAME INTO FCB */
1302 INT21_ParseFileNameIntoFCB(context);
1305 case 0x2a: /* GET SYSTEM DATE */
1306 INT21_GetSystemDate(context);
1309 case 0x2b: /* SET SYSTEM DATE */
1310 FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
1311 DL_reg(context), DH_reg(context), CX_reg(context) );
1312 AL_reg(context) = 0; /* Let's pretend we succeeded */
1315 case 0x2c: /* GET SYSTEM TIME */
1316 INT21_GetSystemTime(context);
1319 case 0x2d: /* SET SYSTEM TIME */
1320 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1321 CH_reg(context), CL_reg(context),
1322 DH_reg(context), DL_reg(context) );
1323 AL_reg(context) = 0; /* Let's pretend we succeeded */
1326 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1327 TRACE("GET DISK TRANSFER AREA ADDRESS\n");
1329 TDB *pTask = TASK_GetCurrent();
1330 context->SegEs = SELECTOROF( pTask->dta );
1331 BX_reg(context) = OFFSETOF( pTask->dta );
1335 case 0x30: /* GET DOS VERSION */
1336 TRACE("GET DOS VERSION %s requested\n",
1337 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1338 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1339 (HIWORD(GetVersion16()) << 8);
1341 AH_reg(context) = 0x7;
1342 AL_reg(context) = 0xA;
1345 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1346 CX_reg(context) = 0x0000;
1349 case 0x31: /* TERMINATE AND STAY RESIDENT */
1350 FIXME("TERMINATE AND STAY RESIDENT stub\n");
1353 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1354 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1355 INT21_DriveName( DL_reg(context)));
1356 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1359 case 0x33: /* MULTIPLEXED */
1360 switch (AL_reg(context))
1362 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1363 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
1364 INT21_ReadConfigSys();
1365 DL_reg(context) = DOSCONF_config.brk_flag;
1368 case 0x01: /* SET EXTENDED BREAK STATE */
1369 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
1370 INT21_ReadConfigSys();
1371 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1374 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1375 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1376 INT21_ReadConfigSys();
1377 /* ugly coding in order to stay reentrant */
1378 if (DL_reg(context))
1380 DL_reg(context) = DOSCONF_config.brk_flag;
1381 DOSCONF_config.brk_flag = 1;
1385 DL_reg(context) = DOSCONF_config.brk_flag;
1386 DOSCONF_config.brk_flag = 0;
1390 case 0x05: /* GET BOOT DRIVE */
1391 TRACE("GET BOOT DRIVE\n");
1392 DL_reg(context) = 3;
1393 /* c: is Wine's bootdrive (a: is 1)*/
1396 case 0x06: /* GET TRUE VERSION NUMBER */
1397 TRACE("GET TRUE VERSION NUMBER\n");
1398 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1399 (HIWORD(GetVersion16() << 8));
1400 DX_reg(context) = 0x00;
1404 INT_BARF( context, 0x21 );
1409 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1410 TRACE("GET ADDRESS OF INDOS FLAG\n");
1411 if (!heap) INT21_CreateHeap();
1412 context->SegEs = DosHeapHandle;
1413 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1416 case 0x35: /* GET INTERRUPT VECTOR */
1417 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1419 FARPROC16 addr = INT_GetPMHandler( AL_reg(context) );
1420 context->SegEs = SELECTOROF(addr);
1421 BX_reg(context) = OFFSETOF(addr);
1425 case 0x36: /* GET FREE DISK SPACE */
1426 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1427 INT21_DriveName( DL_reg(context)));
1428 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1433 unsigned char switchchar='/';
1434 switch (AL_reg(context))
1436 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1437 TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
1438 AL_reg(context) = 0x00; /* success*/
1439 DL_reg(context) = switchchar;
1441 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1442 TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
1443 switchchar = DL_reg(context);
1444 AL_reg(context) = 0x00; /* success*/
1446 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1447 INT_BARF( context, 0x21 );
1453 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1454 TRACE("GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1456 AX_reg(context) = 0x02; /* no country support available */
1460 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1462 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1463 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1464 context->Edx ), NULL));
1465 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1466 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1467 * denied), while CreateDirectory return several ones. remap some of
1470 if (bSetDOSExtendedError) {
1471 switch (GetLastError()) {
1472 case ERROR_ALREADY_EXISTS:
1473 case ERROR_FILENAME_EXCED_RANGE:
1474 case ERROR_DISK_FULL:
1475 SetLastError(ERROR_ACCESS_DENIED);
1482 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1484 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1485 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1489 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1491 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1492 bSetDOSExtendedError = !INT21_ChangeDir(context);
1495 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1496 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1497 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1498 bSetDOSExtendedError = INT21_CreateFile( context );
1501 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1502 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1503 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1504 OpenExistingFile(context);
1507 case 0x3e: /* "CLOSE" - CLOSE FILE */
1508 TRACE("CLOSE handle %d\n",BX_reg(context));
1509 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1512 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1513 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1514 context->SegDs,DX_reg(context),CX_reg(context) );
1518 result = _hread16( BX_reg(context),
1519 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1523 result = WIN16_hread( BX_reg(context),
1524 MAKESEGPTR( context->SegDs, context->Edx ),
1526 if (result == -1) bSetDOSExtendedError = TRUE;
1527 else AX_reg(context) = (WORD)result;
1531 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1532 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1533 context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
1535 LONG result = _hwrite16( BX_reg(context),
1536 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1539 if (result == -1) bSetDOSExtendedError = TRUE;
1540 else AX_reg(context) = (WORD)result;
1544 case 0x41: /* "UNLINK" - DELETE FILE */
1545 TRACE("UNLINK %s\n",
1546 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1547 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1551 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1552 TRACE("LSEEK handle %d offset %ld from %s\n",
1553 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1554 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1555 "current file position":"end of file");
1557 LONG status = _llseek16( BX_reg(context),
1558 MAKELONG(DX_reg(context),CX_reg(context)),
1560 if (status == -1) bSetDOSExtendedError = TRUE;
1563 AX_reg(context) = LOWORD(status);
1564 DX_reg(context) = HIWORD(status);
1569 case 0x43: /* FILE ATTRIBUTES */
1570 switch (AL_reg(context))
1573 TRACE("GET FILE ATTRIBUTES for %s\n",
1574 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1575 AX_reg(context) = (WORD)GetFileAttributesA(
1576 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1578 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1579 else CX_reg(context) = AX_reg(context);
1583 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1584 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1585 bSetDOSExtendedError =
1586 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1591 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1592 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1596 case 0x44: /* IOCTL */
1597 switch (AL_reg(context))
1600 ioctlGetDeviceInfo(context);
1606 const DOS_DEVICE *dev;
1607 static const WCHAR scsimgrW[] = {'S','C','S','I','M','G','R','$',0};
1608 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )) &&
1609 !strcmpiW( dev->name, scsimgrW ))
1611 ASPI_DOS_HandleInt(context);
1615 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1616 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1617 int drive = DOS_GET_DRIVE(BL_reg(context));
1619 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1620 /* for (i=0;i<CX_reg(context);i++)
1621 fprintf(stdnimp,"%02x ",dataptr[i]);
1622 fprintf(stdnimp,"\n");*/
1623 AX_reg(context)=CX_reg(context);
1626 case 0x08: /* Check if drive is removable. */
1627 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1628 INT21_DriveName( BL_reg(context)));
1629 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1632 SetLastError( ERROR_INVALID_DRIVE );
1633 AX_reg(context) = ERROR_INVALID_DRIVE;
1636 case DRIVE_REMOVABLE:
1637 AX_reg(context) = 0; /* removable */
1640 AX_reg(context) = 1; /* not removable */
1645 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1646 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1647 INT21_DriveName( BL_reg(context)));
1648 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1651 SetLastError( ERROR_INVALID_DRIVE );
1652 AX_reg(context) = ERROR_INVALID_DRIVE;
1656 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1659 DX_reg(context) = 0; /* FIXME: use driver attr here */
1664 case 0x0a: /* check if handle (BX) is remote */
1665 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1666 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1669 DX_reg(context) = 0;
1673 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1674 INT21_DriveName( BL_reg(context)));
1675 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1678 case 0x0e: /* get logical drive mapping */
1679 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1680 INT21_DriveName( BL_reg(context)));
1681 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1684 case 0x0F: /* Set logical drive mapping */
1687 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1688 INT21_DriveName( BL_reg(context)));
1689 drive = DOS_GET_DRIVE ( BL_reg(context) );
1690 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1693 AX_reg(context) = 0x000F; /* invalid drive */
1698 case 0xe0: /* Sun PC-NFS API */
1702 case 0x52: /* DR-DOS version */
1703 /* This is not DR-DOS */
1705 TRACE("GET DR-DOS VERSION requested\n");
1707 AX_reg(context) = 0x0001; /* Invalid function */
1708 SET_CFLAG(context); /* Error */
1709 SetLastError( ERROR_INVALID_FUNCTION );
1713 INT_BARF( context, 0x21 );
1718 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1721 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1722 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1723 DosFileHandleToWin32Handle(BX_reg(context)),
1724 GetCurrentProcess(), &handle,
1725 0, TRUE, DUPLICATE_SAME_ACCESS )))
1726 AX_reg(context) = HFILE_ERROR16;
1728 AX_reg(context) = Win32HandleToDosFileHandle(handle);
1732 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1733 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1734 BX_reg(context),CX_reg(context));
1735 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1738 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1739 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1740 INT21_DriveName( DL_reg(context)));
1741 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1744 case 0x48: /* ALLOCATE MEMORY */
1745 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1750 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1752 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1756 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1758 AX_reg(context) = (DWORD)mem&0xffff;
1763 AX_reg(context) = 0x0008; /* insufficient memory */
1764 BX_reg(context) = DOSMEM_Available()>>4;
1769 case 0x49: /* FREE MEMORY */
1770 TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
1774 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
1777 ret = !GlobalDOSFree16(context->SegEs);
1778 /* If we don't reset ES_reg, we will fail in the relay code */
1783 TRACE("FREE MEMORY failed\n");
1785 AX_reg(context) = 0x0009; /* memory block address invalid */
1790 case 0x4a: /* RESIZE MEMORY BLOCK */
1791 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
1792 if (!ISV86(context))
1793 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1795 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
1796 BX_reg(context)<<4,NULL);
1798 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1801 AX_reg(context) = 0x0008; /* insufficient memory */
1802 BX_reg(context) = DOSMEM_Available()>>4; /* not quite right */
1807 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1808 TRACE("EXEC %s\n", (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
1809 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ),
1811 if (AX_reg(context) < 32) SET_CFLAG(context);
1814 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1815 TRACE("EXIT with return code %d\n",AL_reg(context));
1816 ExitThread( AL_reg(context) );
1819 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1820 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1821 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1822 if (!INT21_FindFirst(context)) break;
1825 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1826 TRACE("FINDNEXT\n");
1827 if (!INT21_FindNext(context))
1829 SetLastError( ERROR_NO_MORE_FILES );
1830 AX_reg(context) = ERROR_NO_MORE_FILES;
1833 else AX_reg(context) = 0; /* OK */
1835 case 0x51: /* GET PSP ADDRESS */
1836 TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1837 /* FIXME: should we return the original DOS PSP upon */
1838 /* Windows startup ? */
1839 BX_reg(context) = GetCurrentPDB16();
1841 case 0x62: /* GET PSP ADDRESS */
1842 /* FIXME: should we return the original DOS PSP upon */
1843 /* Windows startup ? */
1844 BX_reg(context) = GetCurrentPDB16();
1847 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1848 TRACE("SYSVARS - GET LIST OF LISTS\n");
1850 context->SegEs = LOWORD(DOS_LOLSeg);
1851 BX_reg(context) = FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB);
1855 case 0x54: /* Get Verify Flag */
1856 TRACE("Get Verify Flag - Not Supported\n");
1857 AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
1860 case 0x56: /* "RENAME" - RENAME FILE */
1861 TRACE("RENAME %s to %s\n",
1862 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1863 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi));
1864 bSetDOSExtendedError =
1865 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1866 CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi)));
1869 case 0x57: /* FILE DATE AND TIME */
1870 switch (AL_reg(context))
1872 case 0x00: /* Get */
1875 TRACE("GET FILE DATE AND TIME for handle %d\n",
1877 if (!GetFileTime( DosFileHandleToWin32Handle(BX_reg(context)), NULL, NULL, &filetime ))
1878 bSetDOSExtendedError = TRUE;
1879 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1884 case 0x01: /* Set */
1887 TRACE("SET FILE DATE AND TIME for handle %d\n",
1889 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1891 bSetDOSExtendedError =
1892 (!SetFileTime( DosFileHandleToWin32Handle(BX_reg(context)),
1893 NULL, NULL, &filetime ));
1899 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1900 TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1902 switch (AL_reg(context))
1905 AX_reg(context) = 1;
1908 AX_reg(context) = 0;
1914 RESET_CFLAG(context);
1917 case 0x5a: /* CREATE TEMPORARY FILE */
1918 TRACE("CREATE TEMPORARY FILE\n");
1919 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1922 case 0x5b: /* CREATE NEW FILE */
1923 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1924 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1925 bSetDOSExtendedError = ((AX_reg(context) =
1926 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1927 CX_reg(context) )) == (WORD)HFILE_ERROR16);
1930 case 0x5d: /* NETWORK */
1931 FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
1932 /* Fix the following while you're at it. */
1933 SetLastError( ER_NoNetwork );
1934 bSetDOSExtendedError = TRUE;
1938 bSetDOSExtendedError = INT21_networkfunc (context);
1941 case 0x5f: /* NETWORK */
1942 switch (AL_reg(context))
1944 case 0x07: /* ENABLE DRIVE */
1945 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1946 if (!DRIVE_Enable( DL_reg(context) ))
1948 SetLastError( ERROR_INVALID_DRIVE );
1949 bSetDOSExtendedError = TRUE;
1953 case 0x08: /* DISABLE DRIVE */
1954 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1955 if (!DRIVE_Disable( DL_reg(context) ))
1957 SetLastError( ERROR_INVALID_DRIVE );
1958 bSetDOSExtendedError = TRUE;
1963 /* network software not installed */
1964 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
1965 SetLastError( ER_NoNetwork );
1966 bSetDOSExtendedError = TRUE;
1971 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1972 TRACE("TRUENAME %s\n",
1973 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
1975 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1977 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1978 context->Edi),NULL))
1979 bSetDOSExtendedError = TRUE;
1980 else AX_reg(context) = 0;
1984 case 0x61: /* UNUSED */
1985 case 0x63: /* misc. language support */
1986 switch (AL_reg(context)) {
1987 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
1988 INT21_GetDBCSLeadTable(context);
1992 case 0x64: /* OS/2 DOS BOX */
1993 INT_BARF( context, 0x21 );
1997 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
1998 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
1999 TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2000 BX_reg(context), DX_reg(context));
2001 switch (AL_reg(context)) {
2003 TRACE("\tget general internationalization info\n");
2005 *(WORD*)(dataptr+1) = 41;
2006 *(WORD*)(dataptr+3) = GetSystemDefaultLangID();
2007 *(WORD*)(dataptr+5) = CodePage;
2008 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2011 TRACE("\tget pointer to collating sequence table\n");
2013 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2014 CX_reg(context) = 258;/*FIXME: size of table?*/
2017 TRACE("\tConvert char to uppercase\n");
2018 DL_reg(context) = toupper(DL_reg(context));
2021 TRACE("\tconvert string to uppercase with length\n");
2023 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
2024 WORD len = CX_reg(context);
2025 while (len--) { *ptr = toupper(*ptr); ptr++; }
2029 TRACE("\tConvert ASCIIZ string to uppercase\n");
2030 _strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx) );
2033 TRACE("\tunimplemented function %d\n",AL_reg(context));
2034 INT_BARF( context, 0x21 );
2040 case 0x66: /* GLOBAL CODE PAGE TABLE */
2041 switch (AL_reg(context))
2044 TRACE("GET GLOBAL CODE PAGE TABLE\n");
2045 DX_reg(context) = BX_reg(context) = CodePage;
2046 RESET_CFLAG(context);
2049 TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2050 BX_reg(context),DX_reg(context));
2051 CodePage = BX_reg(context);
2052 RESET_CFLAG(context);
2057 case 0x67: /* SET HANDLE COUNT */
2058 TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
2059 SetHandleCount16( BX_reg(context) );
2060 if (GetLastError()) bSetDOSExtendedError = TRUE;
2063 case 0x68: /* "FFLUSH" - COMMIT FILE */
2064 case 0x6a: /* COMMIT FILE */
2065 TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
2066 bSetDOSExtendedError = (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ));
2069 case 0x69: /* DISK SERIAL NUMBER */
2070 switch (AL_reg(context))
2073 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
2074 INT21_DriveName(BL_reg(context)));
2075 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2076 else AX_reg(context) = 0;
2080 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
2081 INT21_DriveName(BL_reg(context)));
2082 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2083 else AX_reg(context) = 1;
2088 case 0x6C: /* Extended Open/Create*/
2089 TRACE("EXTENDED OPEN/CREATE %s\n",
2090 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
2091 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2094 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2095 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2096 /* not supported on anything but Win95 */
2097 TRACE("LONG FILENAME functions supported only by win95\n");
2099 AL_reg(context) = 0;
2101 switch(AL_reg(context))
2103 case 0x39: /* Create directory */
2104 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
2105 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2106 bSetDOSExtendedError = (!CreateDirectoryA(
2107 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2108 context->Edx ), NULL));
2109 /* FIXME: CreateDirectory's LastErrors will clash with the ones
2110 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
2111 * denied), while CreateDirectory return several ones. remap some of
2114 if (bSetDOSExtendedError) {
2115 switch (GetLastError()) {
2116 case ERROR_ALREADY_EXISTS:
2117 case ERROR_FILENAME_EXCED_RANGE:
2118 case ERROR_DISK_FULL:
2119 SetLastError(ERROR_ACCESS_DENIED);
2125 case 0x3a: /* Remove directory */
2126 TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
2127 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2128 bSetDOSExtendedError = (!RemoveDirectoryA(
2129 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2132 case 0x43: /* Get/Set file attributes */
2133 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2134 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2135 switch (BL_reg(context))
2137 case 0x00: /* Get file attributes */
2138 TRACE("\tretrieve attributes\n");
2139 CX_reg(context) = (WORD)GetFileAttributesA(
2140 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2142 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2145 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
2146 bSetDOSExtendedError = (!SetFileAttributesA(
2147 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2149 CX_reg(context) ) );
2152 FIXME("Unimplemented long file name function:\n");
2153 INT_BARF( context, 0x21 );
2155 AL_reg(context) = 0;
2159 case 0x47: /* Get current directory */
2160 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2161 INT21_DriveName(DL_reg(context)));
2162 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2165 case 0x4e: /* Find first file */
2166 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2167 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2168 /* FIXME: use attributes in CX */
2169 if ((AX_reg(context) = FindFirstFile16(
2170 CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
2171 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2173 == INVALID_HANDLE_VALUE16)
2174 bSetDOSExtendedError = TRUE;
2176 case 0x4f: /* Find next file */
2177 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2179 if (!FindNextFile16( BX_reg(context),
2180 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2182 bSetDOSExtendedError = TRUE;
2186 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
2187 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2188 DWORD filename_len, flags;
2190 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
2191 AX_reg(context) = 0;
2192 if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
2193 &flags, buffer, 8 ))
2195 INT_BARF( context, 0x21 );
2199 BX_reg(context) = flags | 0x4000; /* support for LFN functions */
2200 CX_reg(context) = filename_len;
2201 DX_reg(context) = MAX_PATH; /* FIXME: which len if DRIVE_SHORT_NAMES ? */
2204 case 0xa1: /* Find close */
2205 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
2207 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2210 switch(CL_reg(context))
2212 case 0x01: /* Get short filename or path */
2213 if (!GetShortPathNameA
2214 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2216 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2218 bSetDOSExtendedError = TRUE;
2219 else AX_reg(context) = 0;
2221 case 0x02: /* Get canonical long filename or path */
2222 if (!GetFullPathNameA
2223 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2225 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2226 context->Edi),NULL))
2227 bSetDOSExtendedError = TRUE;
2228 else AX_reg(context) = 0;
2231 FIXME("Unimplemented long file name function:\n");
2232 INT_BARF( context, 0x21 );
2234 AL_reg(context) = 0;
2238 case 0x6c: /* Create or open file */
2239 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
2240 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
2241 /* translate Dos 7 action to Dos 6 action */
2242 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2245 case 0x3b: /* Change directory */
2246 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2247 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2248 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2254 AL_reg(context) = GetLastError();
2257 case 0x41: /* Delete file */
2258 TRACE("LONG FILENAME - DELETE FILE %s\n",
2259 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2260 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2265 AL_reg(context) = GetLastError();
2268 case 0x56: /* Move (rename) file */
2270 LPCSTR fn1 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2271 LPCSTR fn2 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2272 TRACE("LONG FILENAME - RENAME FILE %s to %s\n", fn1, fn2);
2273 if (!MoveFileA(fn1, fn2))
2276 AL_reg(context) = GetLastError();
2281 FIXME("Unimplemented long file name function:\n");
2282 INT_BARF( context, 0x21 );
2284 AL_reg(context) = 0;
2289 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2290 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2291 TRACE("windows95 function AX %04x\n",
2293 WARN(" returning unimplemented\n");
2295 AL_reg(context) = 0;
2298 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2299 TRACE("windows95 function AX %04x\n",
2302 switch (AL_reg(context))
2304 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2305 /* ES:DI points to word with length of data (should be 0x3d) */
2309 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2310 char root[] = "A:\\";
2312 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2314 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2316 /* validate passed-in buffer lengths */
2317 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
2319 WARN("Get Extended DPB: buffer lengths incorrect\n");
2320 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
2322 AL_reg(context) = 0x18; /* bad buffer length */
2325 /* buffer checks out */
2326 buffer++; /* skip over length word now */
2327 if (FillInDrivePB( DX_reg(context) ) )
2329 edpb = (struct EDPB *)buffer;
2331 /* copy down the old-style DPB portion first */
2332 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2334 /* now fill in the extended entries */
2335 edpb->edpb_flags = 0;
2336 edpb->next_edpb = 0;
2337 edpb->free_cluster = edpb->free_cluster2 = 0;
2339 /* determine free disk space */
2340 *root += DOS_GET_DRIVE( DX_reg(context) );
2341 GetDiskFreeSpaceA( root, &cluster_sectors, §or_bytes,
2342 &free_clusters, &total_clusters );
2344 edpb->clusters_free = (free_clusters&0xffff);
2346 edpb->clusters_free_hi = free_clusters >> 16;
2347 edpb->mirroring_flags = 0;
2348 edpb->info_sector = 0xffff;
2349 edpb->spare_boot_sector = 0xffff;
2350 edpb->first_cluster = 0;
2351 edpb->max_cluster = total_clusters;
2352 edpb->fat_clusters = 32; /* made-up value */
2353 edpb->root_cluster = 0;
2355 RESET_CFLAG(context); /* clear carry */
2356 AX_reg(context) = 0;
2360 AX_reg(context) = 0x00ff;
2366 case 0x03: /* Get Extended free space on drive */
2367 case 0x04: /* Set DPB for formatting */
2368 case 0x05: /* extended absolute disk read/write */
2369 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2371 AL_reg(context) = 0;
2378 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2379 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2383 INT_BARF( context, 0x21 );
2386 } /* END OF SWITCH */
2388 if( bSetDOSExtendedError ) /* set general error condition */
2390 AX_reg(context) = GetLastError();
2394 if ((context->EFlags & 0x0001))
2395 TRACE("failed, error %ld\n", GetLastError() );
2397 TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2398 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2399 AX_reg(context), BX_reg(context), CX_reg(context),
2400 DX_reg(context), SI_reg(context), DI_reg(context),
2401 (WORD)context->SegDs, (WORD)context->SegEs,
2405 /***********************************************************************
2406 * GetSetKernelDOSProc (KERNEL.311)
2408 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2410 FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);