2 * DOS interrupt 21h handler
11 #ifdef HAVE_SYS_FILE_H
12 # include <sys/file.h>
17 #include <sys/types.h>
24 #include "winuser.h" /* SW_NORMAL */
25 #include "wine/winbase16.h"
35 #include "dosexe.h" /* for the MZ_SUPPORTED define */
37 #include "debugtools.h"
40 DEFAULT_DEBUG_CHANNEL(int21)
41 #if defined(__svr4__) || defined(_SCO_DS)
42 /* SVR4 DOESNT do locking the same way must implement properly */
49 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
51 /* Define the drive parameter block, as used by int21/1F
52 * and int21/32. This table can be accessed through the
53 * global 'dpb' pointer, which points into the local dos
58 BYTE drive_num; /* 0=A, etc. */
59 BYTE unit_num; /* Drive's unit number (?) */
60 WORD sector_size; /* Sector size in bytes */
61 BYTE high_sector; /* Highest sector in a cluster */
62 BYTE shift; /* Shift count (?) */
63 WORD reserved; /* Number of reserved sectors at start */
64 BYTE num_FAT; /* Number of FATs */
65 WORD dir_entries; /* Number of root dir entries */
66 WORD first_data; /* First data sector */
67 WORD high_cluster; /* Highest cluster number */
68 WORD sectors_in_FAT; /* Number of sectors per FAT */
69 WORD start_dir; /* Starting sector of first dir */
70 DWORD driver_head; /* Address of device driver header (?) */
71 BYTE media_ID; /* Media ID */
72 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
73 DWORD next; /* Pointer to next DPB in list */
74 WORD free_search; /* Free cluster search start */
75 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
78 struct EDPB /* FAT32 extended Drive Parameter Block */
79 { /* from Ralf Brown's Interrupt List */
80 struct DPB dpb; /* first 24 bytes = original DPB */
82 BYTE edpb_flags; /* undocumented/unknown flags */
83 DWORD next_edpb; /* pointer to next EDPB */
84 WORD free_cluster; /* cluster to start search for free space on write, typically
85 the last cluster allocated */
86 WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
87 WORD clusters_free_hi; /* hiword of clusters_free */
88 WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
89 /* bits 0-3 = 0-based number of the active FAT */
90 WORD info_sector; /* sector number of file system info sector, or FFFF for none */
91 WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
92 DWORD first_cluster; /* sector number of the first cluster */
93 DWORD max_cluster; /* sector number of the last cluster */
94 DWORD fat_clusters; /* number of clusters occupied by FAT */
95 DWORD root_cluster; /* cluster number of start of root directory */
96 DWORD free_cluster2; /* same as free_cluster: cluster at which to start
97 search for free space when writing */
109 BYTE DummyDBCSLeadTable[6];
111 static struct DosHeap *heap;
112 static WORD DosHeapHandle;
114 extern char TempDirectory[];
116 static BOOL INT21_CreateHeap(void)
118 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
120 WARN("Out of memory\n");
123 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
124 dpbsegptr = PTR_SEG_OFF_TO_SEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
126 strcpy(heap->biosdate, "01/01/80");
127 memset(heap->DummyDBCSLeadTable, 0, 6);
131 static BYTE *GetCurrentDTA( CONTEXT86 *context )
133 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
135 /* FIXME: This assumes DTA was set correctly! */
136 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
137 (DWORD)OFFSETOF(pTask->dta) );
141 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
142 /* limited == TRUE is used with INT 0x21/0x440d */
147 setword(&data[3], 0);
149 setword(&data[6], 240);
150 setword(&data[8], 64000);
152 setword(&data[0x0b], 40);
153 setword(&data[0x0d], 56);
154 setword(&data[0x0f], 2);
155 setword(&data[0x11], 0);
157 setword(&data[0x1f], 800);
159 setword(&data[0x22], 1);
161 } else { /* 1.44mb */
164 setword(&data[3], 0);
166 setword(&data[6], 240);
167 setword(&data[8], 2880);
169 setword(&data[0x0b], 6);
170 setword(&data[0x0d], 18);
171 setword(&data[0x0f], 2);
172 setword(&data[0x11], 0);
174 setword(&data[0x1f], 80);
176 setword(&data[0x22], 2);
181 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
183 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
184 char root[] = "A:\\";
186 *root += DOS_GET_DRIVE( DL_reg(context) );
187 if (!GetDiskFreeSpaceA( root, &cluster_sectors, §or_bytes,
188 &free_clusters, &total_clusters )) return 0;
189 AX_reg(context) = cluster_sectors;
190 BX_reg(context) = free_clusters;
191 CX_reg(context) = sector_bytes;
192 DX_reg(context) = total_clusters;
196 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
198 if (!INT21_GetFreeDiskSpace( context )) return 0;
199 if (!heap && !INT21_CreateHeap()) return 0;
200 heap->mediaID = 0xf0;
201 DS_reg(context) = DosHeapHandle;
202 BX_reg(context) = (int)&heap->mediaID - (int)heap;
206 static int FillInDrivePB( int drive )
208 if(!DRIVE_IsValid(drive))
210 SetLastError( ERROR_INVALID_DRIVE );
213 else if (heap || INT21_CreateHeap())
215 /* FIXME: I have no idea what a lot of this information should
216 * say or whether it even really matters since we're not allowing
217 * direct block access. However, some programs seem to depend on
218 * getting at least _something_ back from here. The 'next' pointer
219 * does worry me, though. Should we have a complete table of
220 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
222 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
223 heap->dpb.sector_size = 512;
224 heap->dpb.high_sector = 1;
225 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
226 heap->dpb.reserved = 0;
227 heap->dpb.num_FAT = 1;
228 heap->dpb.dir_entries = 2;
229 heap->dpb.first_data = 2;
230 heap->dpb.high_cluster = 64000;
231 heap->dpb.sectors_in_FAT = 1;
232 heap->dpb.start_dir = 1;
233 heap->dpb.driver_head = 0;
234 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
235 heap->dpb.access_flag = 0;
237 heap->dpb.free_search = 0;
238 heap->dpb.free_clusters = 0xFFFF; /* unknown */
245 static void GetDrivePB( CONTEXT86 *context, int drive )
247 if (FillInDrivePB( drive ))
249 AL_reg(context) = 0x00;
250 DS_reg(context) = SELECTOROF(dpbsegptr);
251 BX_reg(context) = OFFSETOF(dpbsegptr);
255 AX_reg(context) = 0x00ff;
260 static void ioctlGetDeviceInfo( CONTEXT86 *context )
263 const DOS_DEVICE *dev;
265 TRACE("(%d)\n", BX_reg(context));
267 RESET_CFLAG(context);
270 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )))
272 DX_reg(context) = dev->flags;
276 /* it seems to be a file */
277 curr_drive = DRIVE_GetCurrentDrive();
278 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
280 /* bits 0-5 are current drive
281 * bit 6 - file has NOT been written..FIXME: correct?
282 * bit 8 - generate int24 if no diskspace on write/ read past end of file
283 * bit 11 - media not removable
284 * bit 14 - don't set file date/time on closing
285 * bit 15 - file is remote
289 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
291 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
292 int drive = DOS_GET_DRIVE( BL_reg(context) );
294 if (!DRIVE_IsValid(drive))
296 SetLastError( ERROR_FILE_NOT_FOUND );
300 if (CH_reg(context) != 0x08)
302 INT_BARF( context, 0x21 );
306 switch (CL_reg(context))
308 case 0x4a: /* lock logical volume */
309 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
312 case 0x60: /* get device parameters */
313 /* used by w4wgrp's winfile */
314 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
316 dataptr[6] = 0; /* media type */
319 dataptr[1] = 0x05; /* fixed disk */
320 setword(&dataptr[2], 0x01); /* non removable */
321 setword(&dataptr[4], 0x300); /* # of cylinders */
325 dataptr[1] = 0x07; /* block dev, floppy */
326 setword(&dataptr[2], 0x02); /* removable */
327 setword(&dataptr[4], 80); /* # of cylinders */
329 CreateBPB(drive, &dataptr[7], TRUE);
330 RESET_CFLAG(context);
333 case 0x41: /* write logical device track */
334 case 0x61: /* read logical device track */
336 BYTE drive = BL_reg(context) ?
337 BL_reg(context) : DRIVE_GetCurrentDrive();
338 WORD head = *(WORD *)dataptr+1;
339 WORD cyl = *(WORD *)dataptr+3;
340 WORD sect = *(WORD *)dataptr+5;
341 WORD nrsect = *(WORD *)dataptr+7;
342 BYTE *data = (BYTE *)dataptr+9;
343 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
345 raw_func = (CL_reg(context) == 0x41) ?
346 DRIVE_RawWrite : DRIVE_RawRead;
348 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
349 RESET_CFLAG(context);
352 AX_reg(context) = 0x1e; /* read fault */
357 case 0x66:/* get disk serial number */
359 char label[12],fsname[9],path[4];
362 strcpy(path,"x:\\");path[0]=drive+'A';
363 GetVolumeInformationA(
364 path,label,12,&serial,NULL,NULL,fsname,9
367 memcpy(dataptr+2,&serial,4);
368 memcpy(dataptr+6,label ,11);
369 memcpy(dataptr+17,fsname,8);
374 TRACE("logical volume %d unlocked.\n",drive);
378 memset(dataptr+1, '\0', dataptr[0]-1);
379 dataptr[1] = dataptr[0];
380 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
381 dataptr[3] = 0xFF; /* no physical drive */
385 /* Trail on error implementation */
386 AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_CANNOTDETERMINE ? 0x0f : 0x01;
387 SET_CFLAG(context); /* Seems to be set all the time */
391 INT_BARF( context, 0x21 );
396 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
399 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
401 CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context) );
402 char *buffer, *s, *d;
404 AL_reg(context) = 0xff; /* failed */
406 TRACE("filename: '%s'\n", filename);
408 buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
414 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
421 DOSFS_ToDosFCBFormat(buffer, fcb + 1);
423 TRACE("FCB: '%s'\n", ((CHAR *)fcb + 1));
425 HeapFree( GetProcessHeap(), 0, buffer);
428 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
430 /* point DS:SI to first unparsed character */
431 SI_reg(context) += (int)s - (int)filename;
434 static void INT21_GetSystemDate( CONTEXT86 *context )
437 GetLocalTime( &systime );
438 CX_reg(context) = systime.wYear;
439 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
440 AX_reg(context) = systime.wDayOfWeek;
443 static void INT21_GetSystemTime( CONTEXT86 *context )
446 GetLocalTime( &systime );
447 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
448 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
451 /* Many calls translate a drive argument like this:
452 drive number (00h = default, 01h = A:, etc)
454 static char drivestring[]="default";
456 char *INT21_DriveName(int drive)
461 drivestring[0]= (unsigned char)drive + '@';
467 static BOOL INT21_CreateFile( CONTEXT86 *context )
469 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
470 EDX_reg(context) ), CX_reg(context) );
471 return (AX_reg(context) == (WORD)HFILE_ERROR16);
474 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
476 /* Mask off all flags not explicitly allowed by the doc */
477 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
478 return FILE_AllocDosHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
479 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
480 CREATE_NEW, attr, -1 ));
483 static void OpenExistingFile( CONTEXT86 *context )
485 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
487 if (AX_reg(context) == (WORD)HFILE_ERROR16)
489 AX_reg(context) = GetLastError();
494 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
496 BOOL bExtendedError = FALSE;
497 BYTE action = DL_reg(context);
499 /* Shuffle arguments to call OpenExistingFile */
500 AL_reg(context) = BL_reg(context);
501 DX_reg(context) = SI_reg(context);
502 /* BX,CX and DX should be preserved */
503 OpenExistingFile(context);
505 if ((EFL_reg(context) & 0x0001) == 0) /* File exists */
507 UINT16 uReturnCX = 0;
509 /* Now decide what do do */
511 if ((action & 0x07) == 0)
513 _lclose16( AX_reg(context) );
514 AX_reg(context) = 0x0050; /*File exists*/
516 WARN("extended open/create: failed because file exists \n");
518 else if ((action & 0x07) == 2)
520 /* Truncate it, but first check if opened for write */
521 if ((BL_reg(context) & 0x0007)== 0)
523 _lclose16( AX_reg(context) );
524 WARN("extended open/create: failed, trunc on ro file\n");
525 AX_reg(context) = 0x000C; /*Access code invalid*/
530 TRACE("extended open/create: Closing before truncate\n");
531 if (_lclose16( AX_reg(context) ))
533 WARN("extended open/create: close before trunc failed\n");
534 AX_reg(context) = 0x0019; /*Seek Error*/
538 /* Shuffle arguments to call CreateFile */
540 TRACE("extended open/create: Truncating\n");
541 AL_reg(context) = BL_reg(context);
542 /* CX is still the same */
543 DX_reg(context) = SI_reg(context);
544 bExtendedError = INT21_CreateFile(context);
546 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
548 WARN("extended open/create: trunc failed\n");
549 return bExtendedError;
554 else uReturnCX = 0x1;
556 CX_reg(context) = uReturnCX;
558 else /* file does not exist */
560 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
561 if ((action & 0xF0)== 0)
565 WARN("extended open/create: failed, file dosen't exist\n");
569 /* Shuffle arguments to call CreateFile */
570 TRACE("extended open/create: Creating\n");
571 AL_reg(context) = BL_reg(context);
572 /* CX should still be the same */
573 DX_reg(context) = SI_reg(context);
574 bExtendedError = INT21_CreateFile(context);
575 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
577 WARN("extended open/create: create failed\n");
578 return bExtendedError;
584 return bExtendedError;
588 static BOOL INT21_ChangeDir( CONTEXT86 *context )
591 char *dirname = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));
593 TRACE("changedir %s\n", dirname);
594 if (dirname[0] && (dirname[1] == ':'))
596 drive = toupper(dirname[0]) - 'A';
599 else drive = DRIVE_GetCurrentDrive();
600 return DRIVE_Chdir( drive, dirname );
604 static int INT21_FindFirst( CONTEXT86 *context )
608 DOS_FULL_NAME full_name;
609 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
611 path = (const char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
612 dta->unixPath = NULL;
613 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
615 AX_reg(context) = GetLastError();
619 dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
620 p = strrchr( dta->unixPath, '/' );
623 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
624 * (doesn't matter as it is set below anyway)
626 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
628 HeapFree( GetProcessHeap(), 0, dta->unixPath );
629 dta->unixPath = NULL;
630 SetLastError( ERROR_FILE_NOT_FOUND );
631 AX_reg(context) = ERROR_FILE_NOT_FOUND;
635 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
636 : DRIVE_GetCurrentDrive();
638 dta->search_attr = CL_reg(context);
643 static int INT21_FindNext( CONTEXT86 *context )
645 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
646 WIN32_FIND_DATAA entry;
649 if (!dta->unixPath) return 0;
650 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
651 dta->search_attr, dta->count, &entry )))
653 HeapFree( GetProcessHeap(), 0, dta->unixPath );
654 dta->unixPath = NULL;
657 if ((int)dta->count + count > 0xffff)
659 WARN("Too many directory entries in %s\n", dta->unixPath );
660 HeapFree( GetProcessHeap(), 0, dta->unixPath );
661 dta->unixPath = NULL;
665 dta->fileattr = entry.dwFileAttributes;
666 dta->filesize = entry.nFileSizeLow;
667 FileTimeToDosDateTime( &entry.ftLastWriteTime,
668 &dta->filedate, &dta->filetime );
669 strcpy( dta->filename, entry.cAlternateFileName );
670 if (!memchr(dta->mask,'?',11)) {
671 /* wildcardless search, release resources in case no findnext will
672 * be issued, and as a workaround in case file creation messes up
673 * findnext, as sometimes happens with pkunzip */
674 HeapFree( GetProcessHeap(), 0, dta->unixPath );
675 dta->unixPath = NULL;
681 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
683 static int counter = 0;
684 char *name = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context) );
685 char *p = name + strlen(name);
687 /* despite what Ralf Brown says, some programs seem to call without
688 * ending backslash (DOS accepts that, so we accept it too) */
689 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
693 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
694 counter = (counter + 1) % 1000;
696 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
698 TRACE("created %s\n", name );
701 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
706 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
708 int drive = DOS_GET_DRIVE( DL_reg(context) );
709 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
711 if (!DRIVE_IsValid(drive))
713 SetLastError( ERROR_INVALID_DRIVE );
716 lstrcpynA( ptr, DRIVE_GetDosCwd(drive), 64 );
717 AX_reg(context) = 0x0100; /* success return code */
722 static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
724 if (heap || INT21_CreateHeap())
725 { /* return an empty table just as DOS 4.0+ does */
726 DS_reg(context) = DosHeapHandle;
727 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
731 AX_reg(context) = 0x1; /* error */
737 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
739 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
740 int drive = DOS_GET_DRIVE( BL_reg(context) );
742 if (!DRIVE_IsValid(drive))
744 SetLastError( ERROR_INVALID_DRIVE );
748 *(WORD *)dataptr = 0;
749 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
750 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
751 strncpy(dataptr + 0x11, "FAT16 ", 8);
756 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
758 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
759 int drive = DOS_GET_DRIVE( BL_reg(context) );
761 if (!DRIVE_IsValid(drive))
763 SetLastError( ERROR_INVALID_DRIVE );
767 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
772 /* microsoft's programmers should be shot for using CP/M style int21
773 calls in Windows for Workgroup's winfile.exe */
775 static int INT21_FindFirstFCB( CONTEXT86 *context )
777 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
782 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
783 else pFCB = (FINDFILE_FCB *)fcb;
784 drive = DOS_GET_DRIVE( pFCB->drive );
785 if (!DRIVE_IsValid( drive )) return 0;
786 root = DRIVE_GetRoot( drive );
787 cwd = DRIVE_GetUnixCwd( drive );
788 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
789 strlen(root)+strlen(cwd)+2 );
790 if (!pFCB->unixPath) return 0;
791 strcpy( pFCB->unixPath, root );
792 strcat( pFCB->unixPath, "/" );
793 strcat( pFCB->unixPath, cwd );
799 static int INT21_FindNextFCB( CONTEXT86 *context )
801 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
803 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
804 WIN32_FIND_DATAA entry;
808 if (*fcb == 0xff) /* extended FCB ? */
811 pFCB = (FINDFILE_FCB *)(fcb + 7);
816 pFCB = (FINDFILE_FCB *)fcb;
819 if (!pFCB->unixPath) return 0;
820 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
821 DOS_GET_DRIVE( pFCB->drive ), attr,
822 pFCB->count, &entry )))
824 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
825 pFCB->unixPath = NULL;
828 pFCB->count += count;
830 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
831 *(BYTE *)pResult = 0xff;
832 (BYTE *)pResult +=6; /* leave reserved field behind */
833 *(BYTE *)pResult = entry.dwFileAttributes;
836 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
838 pResult->fileattr = entry.dwFileAttributes;
839 pResult->cluster = 0; /* what else? */
840 pResult->filesize = entry.nFileSizeLow;
841 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
842 FileTimeToDosDateTime( &entry.ftLastWriteTime,
843 &pResult->filedate, &pResult->filetime );
845 /* Convert file name to FCB format */
847 memset( pResult->filename, ' ', sizeof(pResult->filename) );
848 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
849 else if (!strcmp( entry.cAlternateFileName, ".." ))
850 pResult->filename[0] = pResult->filename[1] = '.';
853 char *p = strrchr( entry.cAlternateFileName, '.' );
854 if (p && p[1] && (p != entry.cAlternateFileName))
856 memcpy( pResult->filename, entry.cAlternateFileName,
857 min( (p - entry.cAlternateFileName), 8 ) );
858 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
861 memcpy( pResult->filename, entry.cAlternateFileName,
862 min( strlen(entry.cAlternateFileName), 8 ) );
868 static void DeleteFileFCB( CONTEXT86 *context )
870 FIXME("(%p): stub\n", context);
873 static void RenameFileFCB( CONTEXT86 *context )
875 FIXME("(%p): stub\n", context);
880 static void fLock( CONTEXT86 * context )
883 switch ( AX_reg(context) & 0xff )
885 case 0x00: /* LOCK */
886 TRACE("lock handle %d offset %ld length %ld\n",
888 MAKELONG(DX_reg(context),CX_reg(context)),
889 MAKELONG(DI_reg(context),SI_reg(context))) ;
890 if (!LockFile(FILE_GetHandle(BX_reg(context)),
891 MAKELONG(DX_reg(context),CX_reg(context)), 0,
892 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
893 AX_reg(context) = GetLastError();
898 case 0x01: /* UNLOCK */
899 TRACE("unlock handle %d offset %ld length %ld\n",
901 MAKELONG(DX_reg(context),CX_reg(context)),
902 MAKELONG(DI_reg(context),SI_reg(context))) ;
903 if (!UnlockFile(FILE_GetHandle(BX_reg(context)),
904 MAKELONG(DX_reg(context),CX_reg(context)), 0,
905 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
906 AX_reg(context) = GetLastError();
911 AX_reg(context) = 0x0001;
918 INT21_networkfunc (CONTEXT86 *context)
920 switch (AL_reg(context)) {
921 case 0x00: /* Get machine name. */
923 char *dst = CTX_SEG_OFF_TO_LIN (context,DS_reg(context),EDX_reg(context));
924 TRACE("getting machine name to %p\n", dst);
925 if (gethostname (dst, 15))
928 SetLastError( ER_NoNetwork );
931 int len = strlen (dst);
935 CH_reg(context) = 1; /* Valid */
936 CL_reg(context) = 1; /* NETbios number??? */
937 TRACE("returning %s\n", debugstr_an (dst, 16));
943 SetLastError( ER_NoNetwork );
948 static void INT21_SetCurrentPSP(WORD psp)
950 LPDOSTASK lpDosTask = MZ_Current();
952 lpDosTask->psp_seg = psp;
954 ERR("Cannot change PSP for non-DOS task!\n");
957 static WORD INT21_GetCurrentPSP()
959 LPDOSTASK lpDosTask = MZ_Current();
961 return lpDosTask->psp_seg;
963 return GetCurrentPDB16();
967 /***********************************************************************
968 * INT21_GetExtendedError
970 static void INT21_GetExtendedError( CONTEXT86 *context )
972 BYTE class, action, locus;
973 WORD error = GetLastError();
978 class = action = locus = 0;
980 case ERROR_DIR_NOT_EMPTY:
985 case ERROR_ACCESS_DENIED:
986 class = EC_AccessDenied;
990 case ERROR_CANNOT_MAKE:
991 class = EC_AccessDenied;
995 case ERROR_DISK_FULL:
996 case ERROR_HANDLE_DISK_FULL:
997 class = EC_MediaError;
1001 case ERROR_FILE_EXISTS:
1002 case ERROR_ALREADY_EXISTS:
1007 case ERROR_FILE_NOT_FOUND:
1008 class = EC_NotFound;
1012 case ER_GeneralFailure:
1013 class = EC_SystemFailure;
1017 case ERROR_INVALID_DRIVE:
1018 class = EC_MediaError;
1022 case ERROR_INVALID_HANDLE:
1023 class = EC_ProgramError;
1027 case ERROR_LOCK_VIOLATION:
1028 class = EC_AccessDenied;
1032 case ERROR_NO_MORE_FILES:
1033 class = EC_MediaError;
1038 class = EC_NotFound;
1042 case ERROR_NOT_ENOUGH_MEMORY:
1043 class = EC_OutOfResource;
1047 case ERROR_PATH_NOT_FOUND:
1048 class = EC_NotFound;
1053 class = EC_NotFound;
1057 case ERROR_SHARING_VIOLATION:
1058 class = EC_Temporary;
1062 case ERROR_TOO_MANY_OPEN_FILES:
1063 class = EC_ProgramError;
1068 FIXME("Unknown error %d\n", error );
1069 class = EC_SystemFailure;
1074 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1075 error, class, action, locus );
1076 AX_reg(context) = error;
1077 BH_reg(context) = class;
1078 BL_reg(context) = action;
1079 CH_reg(context) = locus;
1082 /***********************************************************************
1083 * DOS3Call (KERNEL.102)
1085 void WINAPI DOS3Call( CONTEXT86 *context )
1087 BOOL bSetDOSExtendedError = FALSE;
1090 TRACE("AX=%04x BX=%04x CX=%04x DX=%04x "
1091 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1092 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1093 SI_reg(context), DI_reg(context),
1094 (WORD)DS_reg(context), (WORD)ES_reg(context),
1098 if (AH_reg(context) == 0x59) /* Get extended error info */
1100 INT21_GetExtendedError( context );
1104 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1106 TRACE("FLUSH BUFFER AND READ STANDARD INPUT\n");
1107 /* no flush here yet */
1108 AH_reg(context) = AL_reg(context);
1111 if (AH_reg(context)>=0x2f) {
1112 /* extended error is used by (at least) functions 0x2f to 0x62 */
1115 RESET_CFLAG(context); /* Not sure if this is a good idea */
1117 switch(AH_reg(context))
1119 case 0x03: /* READ CHARACTER FROM STDAUX */
1120 case 0x04: /* WRITE CHARACTER TO STDAUX */
1121 case 0x05: /* WRITE CHARACTER TO PRINTER */
1122 case 0x0f: /* OPEN FILE USING FCB */
1123 case 0x10: /* CLOSE FILE USING FCB */
1124 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1125 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1126 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1127 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1128 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1129 case 0x23: /* GET FILE SIZE FOR FCB */
1130 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1131 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1132 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1133 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1134 INT_BARF( context, 0x21 );
1137 case 0x00: /* TERMINATE PROGRAM */
1138 TRACE("TERMINATE PROGRAM\n");
1142 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1143 TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
1144 AL_reg(context) = CONSOLE_GetCharacter();
1145 /* FIXME: no echo */
1148 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1149 TRACE("Write Character to Standard Output\n");
1150 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1153 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1154 if (DL_reg(context) == 0xff) {
1155 static char scan = 0;
1156 TRACE("Direct Console Input\n");
1158 /* return pending scancode */
1159 AL_reg(context) = scan;
1160 EFL_reg(context) &= ~0x40; /* clear ZF */
1164 if (CONSOLE_CheckForKeystroke(&scan,&ascii)) {
1165 CONSOLE_GetKeystroke(&scan,&ascii);
1166 /* return ASCII code */
1167 AL_reg(context) = ascii;
1168 EFL_reg(context) &= ~0x40; /* clear ZF */
1169 /* return scan code on next call only if ascii==0 */
1170 if (ascii) scan = 0;
1172 /* nothing pending, clear everything */
1173 AL_reg(context) = 0;
1174 EFL_reg(context) |= 0x40; /* set ZF */
1175 scan = 0; /* just in case */
1179 TRACE("Direct Console Output\n");
1180 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1184 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1185 TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1186 AL_reg(context) = CONSOLE_GetCharacter();
1189 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1190 TRACE("CHARACTER INPUT WITHOUT ECHO\n");
1191 AL_reg(context) = CONSOLE_GetCharacter();
1194 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1195 TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1196 DS_reg(context),DX_reg(context) );
1198 LPSTR data = CTX_SEG_OFF_TO_LIN(context,DS_reg(context),EDX_reg(context));
1200 /* do NOT use strchr() to calculate the string length,
1201 as '\0' is valid string content, too !
1202 Maybe we should check for non-'$' strings, but DOS doesn't. */
1203 while (*p != '$') p++;
1204 _hwrite16( 1, data, (int)p - (int)data);
1205 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1209 case 0x0a: /* BUFFERED INPUT */
1211 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1212 EDX_reg(context) ));
1215 TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
1217 TRACE("Handle old chars in buffer!\n");
1218 res=_lread16( 0, buffer+2,buffer[0]);
1220 if(buffer[res+1] == '\n')
1221 buffer[res+1] = '\r';
1225 case 0x0b: {/* GET STDIN STATUS */
1228 if (CONSOLE_CheckForKeystroke(&x1,&x2))
1229 AL_reg(context) = 0xff;
1231 AL_reg(context) = 0;
1234 case 0x2e: /* SET VERIFY FLAG */
1235 TRACE("SET VERIFY FLAG ignored\n");
1236 /* we cannot change the behaviour anyway, so just ignore it */
1239 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1243 case 0x6b: /* NULL FUNCTION */
1244 AL_reg(context) = 0;
1247 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1251 case 0x0d: /* DISK BUFFER FLUSH */
1252 TRACE("DISK BUFFER FLUSH ignored\n");
1253 RESET_CFLAG(context); /* dos 6+ only */
1256 case 0x0e: /* SELECT DEFAULT DRIVE */
1257 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1258 DRIVE_SetCurrentDrive( DL_reg(context) );
1259 AL_reg(context) = MAX_DOS_DRIVES;
1262 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1263 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
1264 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1265 if (!INT21_FindFirstFCB(context))
1267 AL_reg(context) = 0xff;
1270 /* else fall through */
1272 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1273 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1276 case 0x13: /* DELETE FILE USING FCB */
1277 DeleteFileFCB(context);
1280 case 0x17: /* RENAME FILE USING FCB */
1281 RenameFileFCB(context);
1284 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1285 AL_reg(context) = DRIVE_GetCurrentDrive();
1288 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1290 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1291 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(context),DX_reg(context));
1292 TRACE("Set DTA: %08lx\n", pTask->dta);
1296 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1297 DL_reg(context) = 0;
1298 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1301 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1302 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1305 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1306 GetDrivePB(context, DRIVE_GetCurrentDrive());
1309 case 0x25: /* SET INTERRUPT VECTOR */
1310 INT_CtxSetHandler( context, AL_reg(context),
1311 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1315 case 0x29: /* PARSE FILENAME INTO FCB */
1316 INT21_ParseFileNameIntoFCB(context);
1319 case 0x2a: /* GET SYSTEM DATE */
1320 INT21_GetSystemDate(context);
1323 case 0x2b: /* SET SYSTEM DATE */
1324 FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
1325 DL_reg(context), DH_reg(context), CX_reg(context) );
1326 AL_reg(context) = 0; /* Let's pretend we succeeded */
1329 case 0x2c: /* GET SYSTEM TIME */
1330 INT21_GetSystemTime(context);
1333 case 0x2d: /* SET SYSTEM TIME */
1334 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1335 CH_reg(context), CL_reg(context),
1336 DH_reg(context), DL_reg(context) );
1337 AL_reg(context) = 0; /* Let's pretend we succeeded */
1340 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1341 TRACE("GET DISK TRANSFER AREA ADDRESS\n");
1343 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1344 ES_reg(context) = SELECTOROF( pTask->dta );
1345 BX_reg(context) = OFFSETOF( pTask->dta );
1349 case 0x30: /* GET DOS VERSION */
1350 TRACE("GET DOS VERSION %s requested\n",
1351 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1352 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1353 (HIWORD(GetVersion16()) << 8);
1355 AH_reg(context) = 0x7;
1356 AL_reg(context) = 0xA;
1359 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1360 CX_reg(context) = 0x0000;
1363 case 0x31: /* TERMINATE AND STAY RESIDENT */
1364 FIXME("TERMINATE AND STAY RESIDENT stub\n");
1367 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1368 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1369 INT21_DriveName( DL_reg(context)));
1370 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1373 case 0x33: /* MULTIPLEXED */
1374 switch (AL_reg(context))
1376 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1377 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
1378 DL_reg(context) = DOSCONF_config.brk_flag;
1381 case 0x01: /* SET EXTENDED BREAK STATE */
1382 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
1383 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1386 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1387 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1388 /* ugly coding in order to stay reentrant */
1389 if (DL_reg(context))
1391 DL_reg(context) = DOSCONF_config.brk_flag;
1392 DOSCONF_config.brk_flag = 1;
1396 DL_reg(context) = DOSCONF_config.brk_flag;
1397 DOSCONF_config.brk_flag = 0;
1401 case 0x05: /* GET BOOT DRIVE */
1402 TRACE("GET BOOT DRIVE\n");
1403 DL_reg(context) = 3;
1404 /* c: is Wine's bootdrive (a: is 1)*/
1407 case 0x06: /* GET TRUE VERSION NUMBER */
1408 TRACE("GET TRUE VERSION NUMBER\n");
1409 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1410 (HIWORD(GetVersion16() << 8));
1411 DX_reg(context) = 0x00;
1415 INT_BARF( context, 0x21 );
1420 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1421 TRACE("GET ADDRESS OF INDOS FLAG\n");
1422 if (!heap) INT21_CreateHeap();
1423 ES_reg(context) = DosHeapHandle;
1424 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1427 case 0x35: /* GET INTERRUPT VECTOR */
1428 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1430 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1431 ES_reg(context) = SELECTOROF(addr);
1432 BX_reg(context) = OFFSETOF(addr);
1436 case 0x36: /* GET FREE DISK SPACE */
1437 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1438 INT21_DriveName( DL_reg(context)));
1439 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1444 unsigned char switchchar='/';
1445 switch (AL_reg(context))
1447 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1448 TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
1449 AL_reg(context) = 0x00; /* success*/
1450 DL_reg(context) = switchchar;
1452 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1453 TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
1454 switchchar = DL_reg(context);
1455 AL_reg(context) = 0x00; /* success*/
1457 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1458 INT_BARF( context, 0x21 );
1464 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1465 TRACE("GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1467 AX_reg(context) = 0x02; /* no country support available */
1471 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1473 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1474 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1475 EDX_reg(context) ), NULL));
1476 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1477 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1478 * denied), while CreateDirectory return several ones. remap some of
1481 if (bSetDOSExtendedError) {
1482 switch (GetLastError()) {
1483 case ERROR_ALREADY_EXISTS:
1484 case ERROR_FILENAME_EXCED_RANGE:
1485 case ERROR_DISK_FULL:
1486 SetLastError(ERROR_ACCESS_DENIED);
1493 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1495 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1496 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1497 EDX_reg(context) )));
1500 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1502 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1503 bSetDOSExtendedError = !INT21_ChangeDir(context);
1506 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1507 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1508 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1509 bSetDOSExtendedError = INT21_CreateFile( context );
1512 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1513 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1514 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1515 OpenExistingFile(context);
1518 case 0x3e: /* "CLOSE" - CLOSE FILE */
1519 TRACE("CLOSE handle %d\n",BX_reg(context));
1520 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1523 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1524 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1525 DS_reg(context),DX_reg(context),CX_reg(context) );
1529 result = _hread16( BX_reg(context),
1530 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1534 result = WIN16_hread( BX_reg(context),
1535 PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1538 if (result == -1) bSetDOSExtendedError = TRUE;
1539 else AX_reg(context) = (WORD)result;
1543 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1544 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1545 DS_reg(context),DX_reg(context),BX_reg(context),CX_reg(context) );
1547 LONG result = _hwrite16( BX_reg(context),
1548 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1551 if (result == -1) bSetDOSExtendedError = TRUE;
1552 else AX_reg(context) = (WORD)result;
1556 case 0x41: /* "UNLINK" - DELETE FILE */
1557 TRACE("UNLINK %s\n",
1558 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1559 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1560 EDX_reg(context) )));
1563 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1564 TRACE("LSEEK handle %d offset %ld from %s\n",
1565 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1566 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1567 "current file position":"end of file");
1569 LONG status = _llseek16( BX_reg(context),
1570 MAKELONG(DX_reg(context),CX_reg(context)),
1572 if (status == -1) bSetDOSExtendedError = TRUE;
1575 AX_reg(context) = LOWORD(status);
1576 DX_reg(context) = HIWORD(status);
1581 case 0x43: /* FILE ATTRIBUTES */
1582 switch (AL_reg(context))
1585 TRACE("GET FILE ATTRIBUTES for %s\n",
1586 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1587 AX_reg(context) = (WORD)GetFileAttributesA(
1588 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1590 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1591 else CX_reg(context) = AX_reg(context);
1595 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1596 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1597 bSetDOSExtendedError =
1598 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1603 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1604 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1608 case 0x44: /* IOCTL */
1609 switch (AL_reg(context))
1612 ioctlGetDeviceInfo(context);
1618 const DOS_DEVICE *dev;
1619 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )) &&
1620 !strcasecmp( dev->name, "SCSIMGR$" ))
1622 ASPI_DOS_HandleInt(context);
1626 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1627 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));*/
1628 int drive = DOS_GET_DRIVE(BL_reg(context));
1630 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1631 /* for (i=0;i<CX_reg(context);i++)
1632 fprintf(stdnimp,"%02x ",dataptr[i]);
1633 fprintf(stdnimp,"\n");*/
1634 AX_reg(context)=CX_reg(context);
1637 case 0x08: /* Check if drive is removable. */
1638 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1639 INT21_DriveName( BL_reg(context)));
1640 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1642 case DRIVE_CANNOTDETERMINE:
1643 SetLastError( ERROR_INVALID_DRIVE );
1644 AX_reg(context) = ERROR_INVALID_DRIVE;
1647 case DRIVE_REMOVABLE:
1648 AX_reg(context) = 0; /* removable */
1651 AX_reg(context) = 1; /* not removable */
1656 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1657 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1658 INT21_DriveName( BL_reg(context)));
1659 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1661 case DRIVE_CANNOTDETERMINE:
1662 SetLastError( ERROR_INVALID_DRIVE );
1663 AX_reg(context) = ERROR_INVALID_DRIVE;
1667 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1670 DX_reg(context) = 0; /* FIXME: use driver attr here */
1675 case 0x0a: /* check if handle (BX) is remote */
1676 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1677 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1680 DX_reg(context) = 0;
1683 case 0x0b: /* SET SHARING RETRY COUNT */
1684 TRACE("IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1685 CX_reg(context), DX_reg(context));
1686 if (!CX_reg(context))
1688 AX_reg(context) = 1;
1692 DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
1693 if (!DX_reg(context))
1694 DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
1695 RESET_CFLAG(context);
1699 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1700 INT21_DriveName( BL_reg(context)));
1701 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1704 case 0x0e: /* get logical drive mapping */
1705 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1706 INT21_DriveName( BL_reg(context)));
1707 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1710 case 0x0F: /* Set logical drive mapping */
1713 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1714 INT21_DriveName( BL_reg(context)));
1715 drive = DOS_GET_DRIVE ( BL_reg(context) );
1716 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1719 AX_reg(context) = 0x000F; /* invalid drive */
1724 case 0xe0: /* Sun PC-NFS API */
1729 INT_BARF( context, 0x21 );
1734 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1737 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1738 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1739 FILE_GetHandle(BX_reg(context)),
1740 GetCurrentProcess(), &handle,
1741 0, TRUE, DUPLICATE_SAME_ACCESS )))
1742 AX_reg(context) = HFILE_ERROR16;
1744 AX_reg(context) = FILE_AllocDosHandle(handle);
1748 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1749 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1750 BX_reg(context),CX_reg(context));
1751 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1754 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1755 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1756 INT21_DriveName( DL_reg(context)));
1757 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1760 case 0x48: /* ALLOCATE MEMORY */
1761 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1766 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1768 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1772 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1774 AX_reg(context) = (DWORD)mem&0xffff;
1779 AX_reg(context) = 0x0008; /* insufficient memory */
1780 BX_reg(context) = DOSMEM_Available()>>4;
1785 case 0x49: /* FREE MEMORY */
1786 TRACE("FREE MEMORY segment %04lX\n", ES_reg(context));
1790 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(ES_reg(context)<<4));
1793 ret = !GlobalDOSFree16(ES_reg(context));
1794 /* If we don't reset ES_reg, we will fail in the relay code */
1795 ES_reg(context)=ret;
1799 TRACE("FREE MEMORY failed\n");
1801 AX_reg(context) = 0x0009; /* memory block address invalid */
1806 case 0x4a: /* RESIZE MEMORY BLOCK */
1807 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", ES_reg(context), BX_reg(context));
1808 if (!ISV86(context))
1809 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1811 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(ES_reg(context)<<4),
1812 BX_reg(context)<<4,NULL);
1814 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1817 AX_reg(context) = 0x0008; /* insufficient memory */
1818 BX_reg(context) = DOSMEM_Available()>>4; /* not quite right */
1823 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1825 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context) ));
1826 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1829 if (AX_reg(context) < 32) SET_CFLAG(context);
1832 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1833 TRACE("EXIT with return code %d\n",AL_reg(context));
1834 ExitThread( AL_reg(context) );
1837 case 0x4d: /* GET RETURN CODE */
1838 TRACE("GET RETURN CODE (ERRORLEVEL)\n");
1839 AX_reg(context) = 0; /* normal exit */
1842 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1843 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1844 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1845 if (!INT21_FindFirst(context)) break;
1848 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1849 TRACE("FINDNEXT\n");
1850 if (!INT21_FindNext(context))
1852 SetLastError( ERROR_NO_MORE_FILES );
1853 AX_reg(context) = ERROR_NO_MORE_FILES;
1856 else AX_reg(context) = 0; /* OK */
1858 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1859 TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1860 INT21_SetCurrentPSP(BX_reg(context));
1862 case 0x51: /* GET PSP ADDRESS */
1863 TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1864 /* FIXME: should we return the original DOS PSP upon */
1865 /* Windows startup ? */
1866 BX_reg(context) = INT21_GetCurrentPSP();
1868 case 0x62: /* GET PSP ADDRESS */
1869 TRACE("GET CURRENT PSP ADDRESS\n");
1870 /* FIXME: should we return the original DOS PSP upon */
1871 /* Windows startup ? */
1872 BX_reg(context) = INT21_GetCurrentPSP();
1875 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1876 TRACE("SYSVARS - GET LIST OF LISTS\n");
1878 ES_reg(context) = ISV86(context) ? HIWORD(DOS_LOLSeg) : LOWORD(DOS_LOLSeg);
1879 BX_reg(context) = FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB);
1883 case 0x54: /* Get Verify Flag */
1884 TRACE("Get Verify Flag - Not Supported\n");
1885 AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
1888 case 0x56: /* "RENAME" - RENAME FILE */
1889 TRACE("RENAME %s to %s\n",
1890 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1891 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context)));
1892 bSetDOSExtendedError =
1893 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1894 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context))));
1897 case 0x57: /* FILE DATE AND TIME */
1898 switch (AL_reg(context))
1900 case 0x00: /* Get */
1903 TRACE("GET FILE DATE AND TIME for handle %d\n",
1905 if (!GetFileTime( FILE_GetHandle(BX_reg(context)), NULL, NULL, &filetime ))
1906 bSetDOSExtendedError = TRUE;
1907 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1912 case 0x01: /* Set */
1915 TRACE("SET FILE DATE AND TIME for handle %d\n",
1917 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1919 bSetDOSExtendedError =
1920 (!SetFileTime( FILE_GetHandle(BX_reg(context)),
1921 NULL, NULL, &filetime ));
1927 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1928 TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1930 switch (AL_reg(context))
1933 AX_reg(context) = 1;
1936 AX_reg(context) = 0;
1942 RESET_CFLAG(context);
1945 case 0x5a: /* CREATE TEMPORARY FILE */
1946 TRACE("CREATE TEMPORARY FILE\n");
1947 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1950 case 0x5b: /* CREATE NEW FILE */
1951 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1952 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1953 bSetDOSExtendedError = ((AX_reg(context) =
1954 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1955 CX_reg(context) )) == (WORD)HFILE_ERROR16);
1958 case 0x5d: /* NETWORK */
1959 FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
1960 /* Fix the following while you're at it. */
1961 SetLastError( ER_NoNetwork );
1962 bSetDOSExtendedError = TRUE;
1966 bSetDOSExtendedError = INT21_networkfunc (context);
1969 case 0x5f: /* NETWORK */
1970 switch (AL_reg(context))
1972 case 0x07: /* ENABLE DRIVE */
1973 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1974 if (!DRIVE_Enable( DL_reg(context) ))
1976 SetLastError( ERROR_INVALID_DRIVE );
1977 bSetDOSExtendedError = TRUE;
1981 case 0x08: /* DISABLE DRIVE */
1982 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1983 if (!DRIVE_Disable( DL_reg(context) ))
1985 SetLastError( ERROR_INVALID_DRIVE );
1986 bSetDOSExtendedError = TRUE;
1991 /* network software not installed */
1992 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
1993 SetLastError( ER_NoNetwork );
1994 bSetDOSExtendedError = TRUE;
1999 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
2000 TRACE("TRUENAME %s\n",
2001 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),ESI_reg(context)));
2003 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2004 ESI_reg(context)), 128,
2005 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2006 EDI_reg(context)),NULL))
2007 bSetDOSExtendedError = TRUE;
2008 else AX_reg(context) = 0;
2012 case 0x61: /* UNUSED */
2013 case 0x63: /* misc. language support */
2014 switch (AL_reg(context)) {
2015 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
2016 INT21_GetDBCSLeadTable(context);
2020 case 0x64: /* OS/2 DOS BOX */
2021 INT_BARF( context, 0x21 );
2025 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2026 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context));
2027 TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2028 BX_reg(context), DX_reg(context));
2029 switch (AL_reg(context)) {
2031 TRACE("\tget general internationalization info\n");
2033 *(WORD*)(dataptr+1) = 41;
2034 *(WORD*)(dataptr+3) = GetSystemDefaultLangID();
2035 *(WORD*)(dataptr+5) = CodePage;
2036 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2039 TRACE("\tget pointer to collating sequence table\n");
2041 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2042 CX_reg(context) = 258;/*FIXME: size of table?*/
2045 TRACE("\tConvert char to uppercase\n");
2046 DL_reg(context) = toupper(DL_reg(context));
2049 TRACE("\tconvert string to uppercase with length\n");
2050 CharUpperBuffA( (LPSTR)CTX_SEG_OFF_TO_LIN(context,DS_reg(context),EDX_reg(context)),
2054 TRACE("\tConvert ASCIIZ string to uppercase\n");
2055 CharUpperA( (LPSTR)CTX_SEG_OFF_TO_LIN(context,DS_reg(context),EDX_reg(context)) );
2058 TRACE("\tunimplemented function %d\n",AL_reg(context));
2059 INT_BARF( context, 0x21 );
2065 case 0x66: /* GLOBAL CODE PAGE TABLE */
2066 switch (AL_reg(context))
2069 TRACE("GET GLOBAL CODE PAGE TABLE\n");
2070 DX_reg(context) = BX_reg(context) = CodePage;
2071 RESET_CFLAG(context);
2074 TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2075 BX_reg(context),DX_reg(context));
2076 CodePage = BX_reg(context);
2077 RESET_CFLAG(context);
2082 case 0x67: /* SET HANDLE COUNT */
2083 TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
2084 SetHandleCount16( BX_reg(context) );
2085 if (GetLastError()) bSetDOSExtendedError = TRUE;
2088 case 0x68: /* "FFLUSH" - COMMIT FILE */
2089 case 0x6a: /* COMMIT FILE */
2090 TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
2091 bSetDOSExtendedError = (!FlushFileBuffers( FILE_GetHandle(BX_reg(context)) ));
2094 case 0x69: /* DISK SERIAL NUMBER */
2095 switch (AL_reg(context))
2098 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
2099 INT21_DriveName(BL_reg(context)));
2100 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2101 else AX_reg(context) = 0;
2105 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
2106 INT21_DriveName(BL_reg(context)));
2107 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2108 else AX_reg(context) = 1;
2113 case 0x6C: /* Extended Open/Create*/
2114 TRACE("EXTENDED OPEN/CREATE %s\n",
2115 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDI_reg(context)));
2116 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2119 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2120 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2121 /* not supported on anything but Win95 */
2122 TRACE("LONG FILENAME functions supported only by win95\n");
2124 AL_reg(context) = 0;
2126 switch(AL_reg(context))
2128 case 0x39: /* Create directory */
2129 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
2130 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2131 bSetDOSExtendedError = (!CreateDirectoryA(
2132 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2133 EDX_reg(context) ), NULL));
2134 /* FIXME: CreateDirectory's LastErrors will clash with the ones
2135 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
2136 * denied), while CreateDirectory return several ones. remap some of
2139 if (bSetDOSExtendedError) {
2140 switch (GetLastError()) {
2141 case ERROR_ALREADY_EXISTS:
2142 case ERROR_FILENAME_EXCED_RANGE:
2143 case ERROR_DISK_FULL:
2144 SetLastError(ERROR_ACCESS_DENIED);
2150 case 0x3a: /* Remove directory */
2151 TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
2152 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2153 bSetDOSExtendedError = (!RemoveDirectoryA(
2154 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2155 EDX_reg(context) )));
2157 case 0x43: /* Get/Set file attributes */
2158 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2159 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2160 switch (BL_reg(context))
2162 case 0x00: /* Get file attributes */
2163 TRACE("\tretrieve attributes\n");
2164 CX_reg(context) = (WORD)GetFileAttributesA(
2165 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2167 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2170 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
2171 bSetDOSExtendedError = (!SetFileAttributesA(
2172 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2174 CX_reg(context) ) );
2177 FIXME("Unimplemented long file name function:\n");
2178 INT_BARF( context, 0x21 );
2180 AL_reg(context) = 0;
2184 case 0x47: /* Get current directory */
2185 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2186 INT21_DriveName(DL_reg(context)));
2187 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2190 case 0x4e: /* Find first file */
2191 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2192 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2193 /* FIXME: use attributes in CX */
2194 if ((AX_reg(context) = FindFirstFile16(
2195 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
2196 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2198 == INVALID_HANDLE_VALUE16)
2199 bSetDOSExtendedError = TRUE;
2201 case 0x4f: /* Find next file */
2202 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2204 if (!FindNextFile16( BX_reg(context),
2205 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2207 bSetDOSExtendedError = TRUE;
2211 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));
2212 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context));
2216 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
2217 AX_reg(context) = 0;
2220 INT_BARF( context, 0x21 );
2224 drive = toupper(driveroot[0]) - 'A';
2225 flags = DRIVE_GetFlags(toupper(driveroot[0]) - 'A');
2226 BX_reg(context) = 0x4000; /* support for LFN functions */
2227 if (flags & DRIVE_CASE_SENSITIVE)
2228 BX_reg(context) |= 1;
2229 if (flags & DRIVE_CASE_PRESERVING)
2230 BX_reg(context) |= 2;
2231 /***** FIXME: not supported yet (needed ?)
2232 if (flags & DRIVE_UNICODE)
2233 BX_reg(context) |= 4;
2234 if (flags & DRIVE_COMPRESSED)
2235 BX_reg(context) |= 0x8000;
2237 CX_reg(context) = (flags & DRIVE_SHORT_NAMES) ? 11 : 255; /* FIXME: 12 ? */
2238 DX_reg(context) = MAX_PATH; /* FIXME: which len if DRIVE_SHORT_NAMES ? */
2239 if (DRIVE_GetType(drive) == TYPE_CDROM)
2240 /* valid for data _and_ audio */
2241 strcpy(buffer, "CDFS"); /* FIXME: fail if no CD in drive */
2243 strcpy(buffer, "FAT");
2246 case 0xa1: /* Find close */
2247 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
2249 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2252 switch(CL_reg(context))
2254 case 0x01: /*Get short filename or path */
2255 if (!GetShortPathNameA
2256 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2258 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2259 EDI_reg(context)), 67))
2260 bSetDOSExtendedError = TRUE;
2261 else AX_reg(context) = 0;
2263 case 0x02: /*Get canonical long filename or path */
2264 if (!GetFullPathNameA
2265 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2266 ESI_reg(context)), 128,
2267 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2268 EDI_reg(context)),NULL))
2269 bSetDOSExtendedError = TRUE;
2270 else AX_reg(context) = 0;
2273 FIXME("Unimplemented long file name function:\n");
2274 INT_BARF( context, 0x21 );
2276 AL_reg(context) = 0;
2280 case 0x6c: /* Create or open file */
2281 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
2282 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context)));
2283 /* translate Dos 7 action to Dos 6 action */
2284 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2287 case 0x3b: /* Change directory */
2288 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2289 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2290 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2296 AL_reg(context) = GetLastError();
2299 case 0x41: /* Delete file */
2300 TRACE("LONG FILENAME - DELETE FILE %s\n",
2301 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2302 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2307 AL_reg(context) = GetLastError();
2310 case 0x56: /* Move (rename) file */
2311 FIXME("LONG FILENAME - RENAME FILE %s to %s stub\n",
2312 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)),
2313 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context)));
2315 FIXME("Unimplemented long file name function:\n");
2316 INT_BARF( context, 0x21 );
2318 AL_reg(context) = 0;
2323 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2324 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2325 TRACE("windows95 function AX %04x\n",
2327 WARN(" returning unimplemented\n");
2329 AL_reg(context) = 0;
2332 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2333 TRACE("windows95 function AX %04x\n",
2336 switch (AL_reg(context))
2338 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2339 /* ES:DI points to word with length of data (should be 0x3d) */
2343 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2344 char root[] = "A:\\";
2346 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context));
2348 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2350 /* validate passed-in buffer lengths */
2351 if ((*buffer != 0x3d) || (ECX_reg(context) != 0x3f))
2353 WARN("Get Extended DPB: buffer lengths incorrect\n");
2354 WARN("CX = %lx, buffer[0] = %x\n", ECX_reg(context), *buffer);
2356 AL_reg(context) = 0x18; /* bad buffer length */
2359 /* buffer checks out */
2360 buffer++; /* skip over length word now */
2361 if (FillInDrivePB( DX_reg(context) ) )
2363 edpb = (struct EDPB *)buffer;
2365 /* copy down the old-style DPB portion first */
2366 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2368 /* now fill in the extended entries */
2369 edpb->edpb_flags = 0;
2370 edpb->next_edpb = 0;
2371 edpb->free_cluster = edpb->free_cluster2 = 0;
2373 /* determine free disk space */
2374 *root += DOS_GET_DRIVE( DX_reg(context) );
2375 GetDiskFreeSpaceA( root, &cluster_sectors, §or_bytes,
2376 &free_clusters, &total_clusters );
2378 edpb->clusters_free = (free_clusters&0xffff);
2380 edpb->clusters_free_hi = free_clusters >> 16;
2381 edpb->mirroring_flags = 0;
2382 edpb->info_sector = 0xffff;
2383 edpb->spare_boot_sector = 0xffff;
2384 edpb->first_cluster = 0;
2385 edpb->max_cluster = total_clusters;
2386 edpb->fat_clusters = 32; /* made-up value */
2387 edpb->root_cluster = 0;
2389 RESET_CFLAG(context); /* clear carry */
2390 AX_reg(context) = 0;
2394 AX_reg(context) = 0x00ff;
2400 case 0x03: /* Get Extended free space on drive */
2401 case 0x04: /* Set DPB for formatting */
2402 case 0x05: /* extended absolute disk read/write */
2403 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2405 AL_reg(context) = 0;
2412 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2413 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2417 INT_BARF( context, 0x21 );
2420 } /* END OF SWITCH */
2422 if( bSetDOSExtendedError ) /* set general error condition */
2424 AX_reg(context) = GetLastError();
2428 if ((EFL_reg(context) & 0x0001))
2429 TRACE("failed, error 0x%04lx\n", GetLastError() );
2431 TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2432 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2433 AX_reg(context), BX_reg(context), CX_reg(context),
2434 DX_reg(context), SI_reg(context), DI_reg(context),
2435 (WORD)DS_reg(context), (WORD)ES_reg(context),
2439 /***********************************************************************
2440 * GetSetKernelDOSProc
2442 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2444 FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);