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
26 #include "wine/port.h"
33 #ifdef HAVE_SYS_FILE_H
34 # include <sys/file.h>
37 #ifdef HAVE_SYS_TIME_H
38 # include <sys/time.h>
40 #include <sys/types.h>
52 #include "winuser.h" /* SW_NORMAL */
53 #include "wine/winbase16.h"
61 #include "wine/unicode.h"
62 #include "wine/debug.h"
64 WINE_DEFAULT_DEBUG_CHANNEL(int21);
65 #if defined(__svr4__) || defined(_SCO_DS)
66 /* SVR4 DOESNT do locking the same way must implement properly */
73 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
75 /* Define the drive parameter block, as used by int21/1F
76 * and int21/32. This table can be accessed through the
77 * global 'dpb' pointer, which points into the local dos
82 BYTE drive_num; /* 0=A, etc. */
83 BYTE unit_num; /* Drive's unit number (?) */
84 WORD sector_size; /* Sector size in bytes */
85 BYTE high_sector; /* Highest sector in a cluster */
86 BYTE shift; /* Shift count (?) */
87 WORD reserved; /* Number of reserved sectors at start */
88 BYTE num_FAT; /* Number of FATs */
89 WORD dir_entries; /* Number of root dir entries */
90 WORD first_data; /* First data sector */
91 WORD high_cluster; /* Highest cluster number */
92 WORD sectors_in_FAT; /* Number of sectors per FAT */
93 WORD start_dir; /* Starting sector of first dir */
94 DWORD driver_head; /* Address of device driver header (?) */
95 BYTE media_ID; /* Media ID */
96 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
97 DWORD next; /* Pointer to next DPB in list */
98 WORD free_search; /* Free cluster search start */
99 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
102 struct EDPB /* FAT32 extended Drive Parameter Block */
103 { /* from Ralf Brown's Interrupt List */
104 struct DPB dpb; /* first 24 bytes = original DPB */
106 BYTE edpb_flags; /* undocumented/unknown flags */
107 DWORD next_edpb; /* pointer to next EDPB */
108 WORD free_cluster; /* cluster to start search for free space on write, typically
109 the last cluster allocated */
110 WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
111 WORD clusters_free_hi; /* hiword of clusters_free */
112 WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
113 /* bits 0-3 = 0-based number of the active FAT */
114 WORD info_sector; /* sector number of file system info sector, or FFFF for none */
115 WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
116 DWORD first_cluster; /* sector number of the first cluster */
117 DWORD max_cluster; /* sector number of the last cluster */
118 DWORD fat_clusters; /* number of clusters occupied by FAT */
119 DWORD root_cluster; /* cluster number of start of root directory */
120 DWORD free_cluster2; /* same as free_cluster: cluster at which to start
121 search for free space when writing */
133 BYTE DummyDBCSLeadTable[6];
135 static struct DosHeap *heap;
136 static WORD DosHeapHandle;
138 extern char TempDirectory[];
140 static void INT21_ReadConfigSys(void)
143 if (!done) DOSCONF_ReadConfig();
147 static BOOL INT21_CreateHeap(void)
149 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
151 WARN("Out of memory\n");
154 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
155 dpbsegptr = MAKESEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
157 strcpy(heap->biosdate, "01/01/80");
158 memset(heap->DummyDBCSLeadTable, 0, 6);
162 static BYTE *GetCurrentDTA( CONTEXT86 *context )
164 TDB *pTask = TASK_GetCurrent();
166 /* FIXME: This assumes DTA was set correctly! */
167 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
168 (DWORD)OFFSETOF(pTask->dta) );
172 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
173 /* limited == TRUE is used with INT 0x21/0x440d */
178 setword(&data[3], 0);
180 setword(&data[6], 240);
181 setword(&data[8], 64000);
183 setword(&data[0x0b], 40);
184 setword(&data[0x0d], 56);
185 setword(&data[0x0f], 2);
186 setword(&data[0x11], 0);
188 setword(&data[0x1f], 800);
190 setword(&data[0x22], 1);
192 } else { /* 1.44mb */
195 setword(&data[3], 0);
197 setword(&data[6], 240);
198 setword(&data[8], 2880);
200 setword(&data[0x0b], 6);
201 setword(&data[0x0d], 18);
202 setword(&data[0x0f], 2);
203 setword(&data[0x11], 0);
205 setword(&data[0x1f], 80);
207 setword(&data[0x22], 2);
212 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
214 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
215 char root[] = "A:\\";
217 *root += DOS_GET_DRIVE( DL_reg(context) );
218 if (!GetDiskFreeSpaceA( root, &cluster_sectors, §or_bytes,
219 &free_clusters, &total_clusters )) return 0;
220 AX_reg(context) = cluster_sectors;
221 BX_reg(context) = free_clusters;
222 CX_reg(context) = sector_bytes;
223 DX_reg(context) = total_clusters;
227 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
229 if (!INT21_GetFreeDiskSpace( context )) return 0;
230 if (!heap && !INT21_CreateHeap()) return 0;
231 heap->mediaID = 0xf0;
232 context->SegDs = DosHeapHandle;
233 BX_reg(context) = (int)&heap->mediaID - (int)heap;
237 static int FillInDrivePB( int drive )
239 if(!DRIVE_IsValid(drive))
241 SetLastError( ERROR_INVALID_DRIVE );
244 else if (heap || INT21_CreateHeap())
246 /* FIXME: I have no idea what a lot of this information should
247 * say or whether it even really matters since we're not allowing
248 * direct block access. However, some programs seem to depend on
249 * getting at least _something_ back from here. The 'next' pointer
250 * does worry me, though. Should we have a complete table of
251 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
253 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
254 heap->dpb.sector_size = 512;
255 heap->dpb.high_sector = 1;
256 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
257 heap->dpb.reserved = 0;
258 heap->dpb.num_FAT = 1;
259 heap->dpb.dir_entries = 2;
260 heap->dpb.first_data = 2;
261 heap->dpb.high_cluster = 64000;
262 heap->dpb.sectors_in_FAT = 1;
263 heap->dpb.start_dir = 1;
264 heap->dpb.driver_head = 0;
265 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
266 heap->dpb.access_flag = 0;
268 heap->dpb.free_search = 0;
269 heap->dpb.free_clusters = 0xFFFF; /* unknown */
276 static void GetDrivePB( CONTEXT86 *context, int drive )
278 if (FillInDrivePB( drive ))
280 AL_reg(context) = 0x00;
281 context->SegDs = SELECTOROF(dpbsegptr);
282 BX_reg(context) = OFFSETOF(dpbsegptr);
286 AX_reg(context) = 0x00ff;
291 static void ioctlGetDeviceInfo( CONTEXT86 *context )
294 const DOS_DEVICE *dev;
296 TRACE("(%d)\n", BX_reg(context));
298 RESET_CFLAG(context);
301 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )))
303 DX_reg(context) = dev->flags;
307 /* it seems to be a file */
308 curr_drive = DRIVE_GetCurrentDrive();
309 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
311 /* bits 0-5 are current drive
312 * bit 6 - file has NOT been written..FIXME: correct?
313 * bit 8 - generate int24 if no diskspace on write/ read past end of file
314 * bit 11 - media not removable
315 * bit 14 - don't set file date/time on closing
316 * bit 15 - file is remote
320 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
322 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
323 int drive = DOS_GET_DRIVE( BL_reg(context) );
325 if (!DRIVE_IsValid(drive))
327 SetLastError( ERROR_FILE_NOT_FOUND );
331 if (CH_reg(context) != 0x08)
333 INT_BARF( context, 0x21 );
337 switch (CL_reg(context))
339 case 0x4a: /* lock logical volume */
340 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
343 case 0x60: /* get device parameters */
344 /* used by w4wgrp's winfile */
345 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
347 dataptr[6] = 0; /* media type */
350 dataptr[1] = 0x05; /* fixed disk */
351 setword(&dataptr[2], 0x01); /* non removable */
352 setword(&dataptr[4], 0x300); /* # of cylinders */
356 dataptr[1] = 0x07; /* block dev, floppy */
357 setword(&dataptr[2], 0x02); /* removable */
358 setword(&dataptr[4], 80); /* # of cylinders */
360 CreateBPB(drive, &dataptr[7], TRUE);
361 RESET_CFLAG(context);
364 case 0x41: /* write logical device track */
365 case 0x61: /* read logical device track */
367 BYTE drive = BL_reg(context) ?
368 BL_reg(context) : DRIVE_GetCurrentDrive();
369 WORD head = *(WORD *)dataptr+1;
370 WORD cyl = *(WORD *)dataptr+3;
371 WORD sect = *(WORD *)dataptr+5;
372 WORD nrsect = *(WORD *)dataptr+7;
373 BYTE *data = (BYTE *)dataptr+9;
374 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
376 raw_func = (CL_reg(context) == 0x41) ?
377 DRIVE_RawWrite : DRIVE_RawRead;
379 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
380 RESET_CFLAG(context);
383 AX_reg(context) = 0x1e; /* read fault */
388 case 0x66:/* get disk serial number */
390 char label[12],fsname[9],path[4];
393 strcpy(path,"x:\\");path[0]=drive+'A';
394 GetVolumeInformationA(
395 path,label,12,&serial,NULL,NULL,fsname,9
398 memcpy(dataptr+2,&serial,4);
399 memcpy(dataptr+6,label ,11);
400 memcpy(dataptr+17,fsname,8);
405 TRACE("logical volume %d unlocked.\n",drive);
409 memset(dataptr+1, '\0', dataptr[0]-1);
410 dataptr[1] = dataptr[0];
411 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
412 dataptr[3] = 0xFF; /* no physical drive */
416 /* Trail on error implementation */
417 AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_UNKNOWN ? 0x0f : 0x01;
418 SET_CFLAG(context); /* Seems to be set all the time */
422 INT_BARF( context, 0x21 );
427 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
430 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
432 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
438 AL_reg(context) = 0xff; /* failed */
440 TRACE("filename: '%s'\n", filename);
446 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
455 buffer_len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, NULL, 0);
456 buffer = HeapAlloc( GetProcessHeap(), 0, (buffer_len + 1) * sizeof(WCHAR));
457 len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, buffer, buffer_len);
459 DOSFS_ToDosFCBFormat(buffer, fcbW);
460 HeapFree(GetProcessHeap(), 0, buffer);
461 WideCharToMultiByte(CP_OEMCP, 0, fcbW, 12, fcb + 1, 12, NULL, NULL);
463 TRACE("FCB: '%s'\n", fcb + 1);
466 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
468 /* point DS:SI to first unparsed character */
469 SI_reg(context) += (int)s - (int)filename;
472 static void INT21_GetSystemDate( CONTEXT86 *context )
475 GetLocalTime( &systime );
476 CX_reg(context) = systime.wYear;
477 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
478 AX_reg(context) = systime.wDayOfWeek;
481 static void INT21_GetSystemTime( CONTEXT86 *context )
484 GetLocalTime( &systime );
485 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
486 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
489 /* Many calls translate a drive argument like this:
490 drive number (00h = default, 01h = A:, etc)
492 static char drivestring[]="default";
494 char *INT21_DriveName(int drive)
499 drivestring[0]= (unsigned char)drive + '@';
505 static BOOL INT21_CreateFile( CONTEXT86 *context )
507 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
508 context->Edx ), CX_reg(context) );
509 return (AX_reg(context) == (WORD)HFILE_ERROR16);
512 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
514 /* Mask off all flags not explicitly allowed by the doc */
515 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
516 return Win32HandleToDosFileHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
517 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
518 CREATE_NEW, attr, 0 ));
521 static void OpenExistingFile( CONTEXT86 *context )
523 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
525 if (AX_reg(context) == (WORD)HFILE_ERROR16)
527 AX_reg(context) = GetLastError();
532 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
534 BOOL bExtendedError = FALSE;
535 BYTE action = DL_reg(context);
537 /* Shuffle arguments to call OpenExistingFile */
538 AL_reg(context) = BL_reg(context);
539 DX_reg(context) = SI_reg(context);
540 /* BX,CX and DX should be preserved */
541 OpenExistingFile(context);
543 if ((context->EFlags & 0x0001) == 0) /* File exists */
545 UINT16 uReturnCX = 0;
547 /* Now decide what do do */
549 if ((action & 0x07) == 0)
551 _lclose16( AX_reg(context) );
552 AX_reg(context) = 0x0050; /*File exists*/
554 WARN("extended open/create: failed because file exists \n");
556 else if ((action & 0x07) == 2)
558 /* Truncate it, but first check if opened for write */
559 if ((BL_reg(context) & 0x0007)== 0)
561 _lclose16( AX_reg(context) );
562 WARN("extended open/create: failed, trunc on ro file\n");
563 AX_reg(context) = 0x000C; /*Access code invalid*/
568 TRACE("extended open/create: Closing before truncate\n");
569 if (_lclose16( AX_reg(context) ))
571 WARN("extended open/create: close before trunc failed\n");
572 AX_reg(context) = 0x0019; /*Seek Error*/
576 /* Shuffle arguments to call CreateFile */
578 TRACE("extended open/create: Truncating\n");
579 AL_reg(context) = BL_reg(context);
580 /* CX is still the same */
581 DX_reg(context) = SI_reg(context);
582 bExtendedError = INT21_CreateFile(context);
584 if (context->EFlags & 0x0001) /*no file open, flags set */
586 WARN("extended open/create: trunc failed\n");
587 return bExtendedError;
592 else uReturnCX = 0x1;
594 CX_reg(context) = uReturnCX;
596 else /* file does not exist */
598 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
599 if ((action & 0xF0)== 0)
603 WARN("extended open/create: failed, file dosen't exist\n");
607 /* Shuffle arguments to call CreateFile */
608 TRACE("extended open/create: Creating\n");
609 AL_reg(context) = BL_reg(context);
610 /* CX should still be the same */
611 DX_reg(context) = SI_reg(context);
612 bExtendedError = INT21_CreateFile(context);
613 if (context->EFlags & 0x0001) /*no file open, flags set */
615 WARN("extended open/create: create failed\n");
616 return bExtendedError;
622 return bExtendedError;
626 static BOOL INT21_ChangeDir( CONTEXT86 *context )
629 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
630 WCHAR dirnameW[MAX_PATH];
632 TRACE("changedir %s\n", dirname);
633 if (dirname[0] && (dirname[1] == ':'))
635 drive = toupper(dirname[0]) - 'A';
638 else drive = DRIVE_GetCurrentDrive();
639 MultiByteToWideChar(CP_OEMCP, 0, dirname, -1, dirnameW, MAX_PATH);
640 return DRIVE_Chdir( drive, dirnameW );
644 static int INT21_FindFirst( CONTEXT86 *context )
648 DOS_FULL_NAME full_name;
649 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
650 WCHAR pathW[MAX_PATH];
653 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
654 MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH);
656 dta->unixPath = NULL;
657 if (!DOSFS_GetFullName( pathW, FALSE, &full_name ))
659 AX_reg(context) = GetLastError();
663 dta->unixPath = HeapAlloc( GetProcessHeap(), 0, strlen(full_name.long_name)+1 );
664 strcpy( dta->unixPath, full_name.long_name );
665 p = strrchr( dta->unixPath, '/' );
668 MultiByteToWideChar(CP_OEMCP, 0, p + 1, -1, pathW, MAX_PATH);
670 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
671 * (doesn't matter as it is set below anyway)
673 if (!DOSFS_ToDosFCBFormat( pathW, maskW ))
675 HeapFree( GetProcessHeap(), 0, dta->unixPath );
676 dta->unixPath = NULL;
677 SetLastError( ERROR_FILE_NOT_FOUND );
678 AX_reg(context) = ERROR_FILE_NOT_FOUND;
682 WideCharToMultiByte(CP_OEMCP, 0, maskW, 12, dta->mask, sizeof(dta->mask), NULL, NULL);
683 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
684 : DRIVE_GetCurrentDrive();
686 dta->search_attr = CL_reg(context);
691 static int INT21_FindNext( CONTEXT86 *context )
693 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
694 WIN32_FIND_DATAA entry;
697 if (!dta->unixPath) return 0;
698 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
699 dta->search_attr, dta->count, &entry )))
701 HeapFree( GetProcessHeap(), 0, dta->unixPath );
702 dta->unixPath = NULL;
705 if ((int)dta->count + count > 0xffff)
707 WARN("Too many directory entries in %s\n", dta->unixPath );
708 HeapFree( GetProcessHeap(), 0, dta->unixPath );
709 dta->unixPath = NULL;
713 dta->fileattr = entry.dwFileAttributes;
714 dta->filesize = entry.nFileSizeLow;
715 FileTimeToDosDateTime( &entry.ftLastWriteTime,
716 &dta->filedate, &dta->filetime );
717 strcpy( dta->filename, entry.cAlternateFileName );
718 if (!memchr(dta->mask,'?',11)) {
719 /* wildcardless search, release resources in case no findnext will
720 * be issued, and as a workaround in case file creation messes up
721 * findnext, as sometimes happens with pkunzip */
722 HeapFree( GetProcessHeap(), 0, dta->unixPath );
723 dta->unixPath = NULL;
729 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
731 static int counter = 0;
732 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
733 char *p = name + strlen(name);
735 /* despite what Ralf Brown says, some programs seem to call without
736 * ending backslash (DOS accepts that, so we accept it too) */
737 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
741 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
742 counter = (counter + 1) % 1000;
744 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
746 TRACE("created %s\n", name );
749 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
754 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
756 int drive = DOS_GET_DRIVE( DL_reg(context) );
757 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
759 if (!DRIVE_IsValid(drive))
761 SetLastError( ERROR_INVALID_DRIVE );
764 WideCharToMultiByte(CP_OEMCP, 0, DRIVE_GetDosCwd(drive), -1, ptr, 64, NULL, NULL);
765 ptr[63] = 0; /* ensure 0 termination */
766 AX_reg(context) = 0x0100; /* success return code */
771 static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
773 if (heap || INT21_CreateHeap())
774 { /* return an empty table just as DOS 4.0+ does */
775 context->SegDs = DosHeapHandle;
776 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
780 AX_reg(context) = 0x1; /* error */
786 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
788 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
789 int drive = DOS_GET_DRIVE( BL_reg(context) );
791 if (!DRIVE_IsValid(drive))
793 SetLastError( ERROR_INVALID_DRIVE );
797 *(WORD *)dataptr = 0;
798 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
799 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
800 strncpy(dataptr + 0x11, "FAT16 ", 8);
805 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
807 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
808 int drive = DOS_GET_DRIVE( BL_reg(context) );
810 if (!DRIVE_IsValid(drive))
812 SetLastError( ERROR_INVALID_DRIVE );
816 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
821 /* microsoft's programmers should be shot for using CP/M style int21
822 calls in Windows for Workgroup's winfile.exe */
824 static int INT21_FindFirstFCB( CONTEXT86 *context )
826 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
831 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
832 else pFCB = (FINDFILE_FCB *)fcb;
833 drive = DOS_GET_DRIVE( pFCB->drive );
834 if (!DRIVE_IsValid( drive )) return 0;
835 root = DRIVE_GetRoot( drive );
836 cwd = DRIVE_GetUnixCwd( drive );
837 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
838 strlen(root)+strlen(cwd)+2 );
839 if (!pFCB->unixPath) return 0;
840 strcpy( pFCB->unixPath, root );
841 strcat( pFCB->unixPath, "/" );
842 strcat( pFCB->unixPath, cwd );
848 static int INT21_FindNextFCB( CONTEXT86 *context )
850 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
852 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
853 WIN32_FIND_DATAA entry;
857 if (*fcb == 0xff) /* extended FCB ? */
860 pFCB = (FINDFILE_FCB *)(fcb + 7);
865 pFCB = (FINDFILE_FCB *)fcb;
868 if (!pFCB->unixPath) return 0;
869 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
870 DOS_GET_DRIVE( pFCB->drive ), attr,
871 pFCB->count, &entry )))
873 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
874 pFCB->unixPath = NULL;
877 pFCB->count += count;
879 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
880 *(BYTE *)pResult = 0xff;
881 (BYTE *)pResult +=6; /* leave reserved field behind */
882 *(BYTE *)pResult = entry.dwFileAttributes;
885 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
887 pResult->fileattr = entry.dwFileAttributes;
888 pResult->cluster = 0; /* what else? */
889 pResult->filesize = entry.nFileSizeLow;
890 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
891 FileTimeToDosDateTime( &entry.ftLastWriteTime,
892 &pResult->filedate, &pResult->filetime );
894 /* Convert file name to FCB format */
896 memset( pResult->filename, ' ', sizeof(pResult->filename) );
897 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
898 else if (!strcmp( entry.cAlternateFileName, ".." ))
899 pResult->filename[0] = pResult->filename[1] = '.';
902 char *p = strrchr( entry.cAlternateFileName, '.' );
903 if (p && p[1] && (p != entry.cAlternateFileName))
905 memcpy( pResult->filename, entry.cAlternateFileName,
906 min( (p - entry.cAlternateFileName), 8 ) );
907 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
910 memcpy( pResult->filename, entry.cAlternateFileName,
911 min( strlen(entry.cAlternateFileName), 8 ) );
917 static void DeleteFileFCB( CONTEXT86 *context )
919 FIXME("(%p): stub\n", context);
922 static void RenameFileFCB( CONTEXT86 *context )
924 FIXME("(%p): stub\n", context);
929 static void fLock( CONTEXT86 * context )
932 switch ( AX_reg(context) & 0xff )
934 case 0x00: /* LOCK */
935 TRACE("lock handle %d offset %ld length %ld\n",
937 MAKELONG(DX_reg(context),CX_reg(context)),
938 MAKELONG(DI_reg(context),SI_reg(context))) ;
939 if (!LockFile(DosFileHandleToWin32Handle(BX_reg(context)),
940 MAKELONG(DX_reg(context),CX_reg(context)), 0,
941 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
942 AX_reg(context) = GetLastError();
947 case 0x01: /* UNLOCK */
948 TRACE("unlock handle %d offset %ld length %ld\n",
950 MAKELONG(DX_reg(context),CX_reg(context)),
951 MAKELONG(DI_reg(context),SI_reg(context))) ;
952 if (!UnlockFile(DosFileHandleToWin32Handle(BX_reg(context)),
953 MAKELONG(DX_reg(context),CX_reg(context)), 0,
954 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
955 AX_reg(context) = GetLastError();
960 AX_reg(context) = 0x0001;
967 INT21_networkfunc (CONTEXT86 *context)
969 switch (AL_reg(context)) {
970 case 0x00: /* Get machine name. */
972 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
973 TRACE("getting machine name to %p\n", dst);
974 if (gethostname (dst, 15))
977 SetLastError( ER_NoNetwork );
980 int len = strlen (dst);
984 CH_reg(context) = 1; /* Valid */
985 CL_reg(context) = 1; /* NETbios number??? */
986 TRACE("returning %s\n", debugstr_an (dst, 16));
992 SetLastError( ER_NoNetwork );
998 static void ASPI_DOS_HandleInt( CONTEXT86 *context )
1000 if (!Dosvm.ASPIHandler && !DPMI_LoadDosSystem())
1002 ERR("could not setup ASPI handler\n");
1005 Dosvm.ASPIHandler( context );
1008 /***********************************************************************
1009 * INT21_GetExtendedError
1011 static void INT21_GetExtendedError( CONTEXT86 *context )
1013 BYTE class, action, locus;
1014 WORD error = GetLastError();
1019 class = action = locus = 0;
1021 case ERROR_DIR_NOT_EMPTY:
1026 case ERROR_ACCESS_DENIED:
1027 class = EC_AccessDenied;
1031 case ERROR_CANNOT_MAKE:
1032 class = EC_AccessDenied;
1036 case ERROR_DISK_FULL:
1037 case ERROR_HANDLE_DISK_FULL:
1038 class = EC_MediaError;
1042 case ERROR_FILE_EXISTS:
1043 case ERROR_ALREADY_EXISTS:
1048 case ERROR_FILE_NOT_FOUND:
1049 class = EC_NotFound;
1053 case ER_GeneralFailure:
1054 class = EC_SystemFailure;
1058 case ERROR_INVALID_DRIVE:
1059 class = EC_MediaError;
1063 case ERROR_INVALID_HANDLE:
1064 class = EC_ProgramError;
1068 case ERROR_LOCK_VIOLATION:
1069 class = EC_AccessDenied;
1073 case ERROR_NO_MORE_FILES:
1074 class = EC_MediaError;
1079 class = EC_NotFound;
1083 case ERROR_NOT_ENOUGH_MEMORY:
1084 class = EC_OutOfResource;
1088 case ERROR_PATH_NOT_FOUND:
1089 class = EC_NotFound;
1094 class = EC_NotFound;
1098 case ERROR_SHARING_VIOLATION:
1099 class = EC_Temporary;
1103 case ERROR_TOO_MANY_OPEN_FILES:
1104 class = EC_ProgramError;
1109 FIXME("Unknown error %d\n", error );
1110 class = EC_SystemFailure;
1115 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1116 error, class, action, locus );
1117 AX_reg(context) = error;
1118 BH_reg(context) = class;
1119 BL_reg(context) = action;
1120 CH_reg(context) = locus;
1123 /***********************************************************************
1124 * DOS3Call (KERNEL.102)
1125 * INT_Int21Handler (WPROCS.133)
1127 void WINAPI DOS3Call( CONTEXT86 *context )
1129 BOOL bSetDOSExtendedError = FALSE;
1132 TRACE("AX=%04x BX=%04x CX=%04x DX=%04x "
1133 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1134 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1135 SI_reg(context), DI_reg(context),
1136 (WORD)context->SegDs, (WORD)context->SegEs,
1140 if (AH_reg(context) == 0x59) /* Get extended error info */
1142 INT21_GetExtendedError( context );
1146 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1148 TRACE("FLUSH BUFFER AND READ STANDARD INPUT\n");
1149 /* no flush here yet */
1150 AH_reg(context) = AL_reg(context);
1153 if (AH_reg(context)>=0x2f) {
1154 /* extended error is used by (at least) functions 0x2f to 0x62 */
1157 RESET_CFLAG(context); /* Not sure if this is a good idea */
1159 switch(AH_reg(context))
1161 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1162 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1163 case 0x03: /* READ CHARACTER FROM STDAUX */
1164 case 0x04: /* WRITE CHARACTER TO STDAUX */
1165 case 0x05: /* WRITE CHARACTER TO PRINTER */
1166 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1167 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1168 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1169 case 0x0b: /* GET STDIN STATUS */
1170 case 0x0f: /* OPEN FILE USING FCB */
1171 case 0x10: /* CLOSE FILE USING FCB */
1172 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1173 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1174 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1175 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1176 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1177 case 0x23: /* GET FILE SIZE FOR FCB */
1178 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1179 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1180 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1181 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1182 case 0x4d: /* GET RETURN CODE */
1183 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1184 INT_BARF( context, 0x21 );
1187 case 0x00: /* TERMINATE PROGRAM */
1188 TRACE("TERMINATE PROGRAM\n");
1192 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1193 TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1194 context->SegDs,DX_reg(context) );
1196 LPSTR data = CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
1198 /* do NOT use strchr() to calculate the string length,
1199 as '\0' is valid string content, too !
1200 Maybe we should check for non-'$' strings, but DOS doesn't. */
1201 while (*p != '$') p++;
1202 _hwrite16( 1, data, (int)p - (int)data);
1203 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1207 case 0x0a: /* BUFFERED INPUT */
1209 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1213 TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
1215 TRACE("Handle old chars in buffer!\n");
1216 res=_lread16( 0, buffer+2,buffer[0]);
1218 if(buffer[res+1] == '\n')
1219 buffer[res+1] = '\r';
1223 case 0x2e: /* SET VERIFY FLAG */
1224 TRACE("SET VERIFY FLAG ignored\n");
1225 /* we cannot change the behaviour anyway, so just ignore it */
1228 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1232 case 0x6b: /* NULL FUNCTION */
1233 AL_reg(context) = 0;
1236 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1240 case 0x0d: /* DISK BUFFER FLUSH */
1241 TRACE("DISK BUFFER FLUSH ignored\n");
1242 RESET_CFLAG(context); /* dos 6+ only */
1245 case 0x0e: /* SELECT DEFAULT DRIVE */
1246 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1247 DRIVE_SetCurrentDrive( DL_reg(context) );
1248 AL_reg(context) = MAX_DOS_DRIVES;
1251 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1252 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
1253 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1254 if (!INT21_FindFirstFCB(context))
1256 AL_reg(context) = 0xff;
1259 /* else fall through */
1261 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1262 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1265 case 0x13: /* DELETE FILE USING FCB */
1266 DeleteFileFCB(context);
1269 case 0x17: /* RENAME FILE USING FCB */
1270 RenameFileFCB(context);
1273 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1274 AL_reg(context) = DRIVE_GetCurrentDrive();
1277 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1279 TDB *pTask = TASK_GetCurrent();
1280 pTask->dta = MAKESEGPTR(context->SegDs,DX_reg(context));
1281 TRACE("Set DTA: %08lx\n", pTask->dta);
1285 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1286 DL_reg(context) = 0;
1287 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1290 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1291 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1294 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1295 GetDrivePB(context, DRIVE_GetCurrentDrive());
1298 case 0x25: /* SET INTERRUPT VECTOR */
1299 INT_SetPMHandler( AL_reg(context), (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context)));
1302 case 0x29: /* PARSE FILENAME INTO FCB */
1303 INT21_ParseFileNameIntoFCB(context);
1306 case 0x2a: /* GET SYSTEM DATE */
1307 INT21_GetSystemDate(context);
1310 case 0x2b: /* SET SYSTEM DATE */
1311 FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
1312 DL_reg(context), DH_reg(context), CX_reg(context) );
1313 AL_reg(context) = 0; /* Let's pretend we succeeded */
1316 case 0x2c: /* GET SYSTEM TIME */
1317 INT21_GetSystemTime(context);
1320 case 0x2d: /* SET SYSTEM TIME */
1321 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1322 CH_reg(context), CL_reg(context),
1323 DH_reg(context), DL_reg(context) );
1324 AL_reg(context) = 0; /* Let's pretend we succeeded */
1327 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1328 TRACE("GET DISK TRANSFER AREA ADDRESS\n");
1330 TDB *pTask = TASK_GetCurrent();
1331 context->SegEs = SELECTOROF( pTask->dta );
1332 BX_reg(context) = OFFSETOF( pTask->dta );
1336 case 0x30: /* GET DOS VERSION */
1337 TRACE("GET DOS VERSION %s requested\n",
1338 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1339 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1340 (HIWORD(GetVersion16()) << 8);
1342 AH_reg(context) = 0x7;
1343 AL_reg(context) = 0xA;
1346 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1347 CX_reg(context) = 0x0000;
1350 case 0x31: /* TERMINATE AND STAY RESIDENT */
1351 FIXME("TERMINATE AND STAY RESIDENT stub\n");
1354 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1355 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1356 INT21_DriveName( DL_reg(context)));
1357 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1360 case 0x33: /* MULTIPLEXED */
1361 switch (AL_reg(context))
1363 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1364 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
1365 INT21_ReadConfigSys();
1366 DL_reg(context) = DOSCONF_config.brk_flag;
1369 case 0x01: /* SET EXTENDED BREAK STATE */
1370 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
1371 INT21_ReadConfigSys();
1372 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1375 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1376 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1377 INT21_ReadConfigSys();
1378 /* ugly coding in order to stay reentrant */
1379 if (DL_reg(context))
1381 DL_reg(context) = DOSCONF_config.brk_flag;
1382 DOSCONF_config.brk_flag = 1;
1386 DL_reg(context) = DOSCONF_config.brk_flag;
1387 DOSCONF_config.brk_flag = 0;
1391 case 0x05: /* GET BOOT DRIVE */
1392 TRACE("GET BOOT DRIVE\n");
1393 DL_reg(context) = 3;
1394 /* c: is Wine's bootdrive (a: is 1)*/
1397 case 0x06: /* GET TRUE VERSION NUMBER */
1398 TRACE("GET TRUE VERSION NUMBER\n");
1399 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1400 (HIWORD(GetVersion16() << 8));
1401 DX_reg(context) = 0x00;
1405 INT_BARF( context, 0x21 );
1410 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1411 TRACE("GET ADDRESS OF INDOS FLAG\n");
1412 if (!heap) INT21_CreateHeap();
1413 context->SegEs = DosHeapHandle;
1414 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1417 case 0x35: /* GET INTERRUPT VECTOR */
1418 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1420 FARPROC16 addr = INT_GetPMHandler( AL_reg(context) );
1421 context->SegEs = SELECTOROF(addr);
1422 BX_reg(context) = OFFSETOF(addr);
1426 case 0x36: /* GET FREE DISK SPACE */
1427 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1428 INT21_DriveName( DL_reg(context)));
1429 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1434 unsigned char switchchar='/';
1435 switch (AL_reg(context))
1437 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1438 TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
1439 AL_reg(context) = 0x00; /* success*/
1440 DL_reg(context) = switchchar;
1442 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1443 TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
1444 switchchar = DL_reg(context);
1445 AL_reg(context) = 0x00; /* success*/
1447 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1448 INT_BARF( context, 0x21 );
1454 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1455 TRACE("GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1457 AX_reg(context) = 0x02; /* no country support available */
1461 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1463 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1464 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1465 context->Edx ), NULL));
1466 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1467 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1468 * denied), while CreateDirectory return several ones. remap some of
1471 if (bSetDOSExtendedError) {
1472 switch (GetLastError()) {
1473 case ERROR_ALREADY_EXISTS:
1474 case ERROR_FILENAME_EXCED_RANGE:
1475 case ERROR_DISK_FULL:
1476 SetLastError(ERROR_ACCESS_DENIED);
1483 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1485 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1486 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1490 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1492 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1493 bSetDOSExtendedError = !INT21_ChangeDir(context);
1496 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1497 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1498 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1499 bSetDOSExtendedError = INT21_CreateFile( context );
1502 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1503 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1504 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1505 OpenExistingFile(context);
1508 case 0x3e: /* "CLOSE" - CLOSE FILE */
1509 TRACE("CLOSE handle %d\n",BX_reg(context));
1510 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1513 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1514 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1515 context->SegDs,DX_reg(context),CX_reg(context) );
1519 result = _hread16( BX_reg(context),
1520 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1524 result = WIN16_hread( BX_reg(context),
1525 MAKESEGPTR( context->SegDs, context->Edx ),
1527 if (result == -1) bSetDOSExtendedError = TRUE;
1528 else AX_reg(context) = (WORD)result;
1532 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1533 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1534 context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
1536 LONG result = _hwrite16( BX_reg(context),
1537 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1540 if (result == -1) bSetDOSExtendedError = TRUE;
1541 else AX_reg(context) = (WORD)result;
1545 case 0x41: /* "UNLINK" - DELETE FILE */
1546 TRACE("UNLINK %s\n",
1547 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1548 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1552 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1553 TRACE("LSEEK handle %d offset %ld from %s\n",
1554 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1555 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1556 "current file position":"end of file");
1558 LONG status = _llseek16( BX_reg(context),
1559 MAKELONG(DX_reg(context),CX_reg(context)),
1561 if (status == -1) bSetDOSExtendedError = TRUE;
1564 AX_reg(context) = LOWORD(status);
1565 DX_reg(context) = HIWORD(status);
1570 case 0x43: /* FILE ATTRIBUTES */
1571 switch (AL_reg(context))
1574 TRACE("GET FILE ATTRIBUTES for %s\n",
1575 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1576 AX_reg(context) = (WORD)GetFileAttributesA(
1577 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1579 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1580 else CX_reg(context) = AX_reg(context);
1584 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1585 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1586 bSetDOSExtendedError =
1587 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1592 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1593 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1597 case 0x44: /* IOCTL */
1598 switch (AL_reg(context))
1601 ioctlGetDeviceInfo(context);
1607 const DOS_DEVICE *dev;
1608 static const WCHAR scsimgrW[] = {'S','C','S','I','M','G','R','$',0};
1609 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )) &&
1610 !strcmpiW( dev->name, scsimgrW ))
1612 ASPI_DOS_HandleInt(context);
1616 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1617 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1618 int drive = DOS_GET_DRIVE(BL_reg(context));
1620 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1621 /* for (i=0;i<CX_reg(context);i++)
1622 fprintf(stdnimp,"%02x ",dataptr[i]);
1623 fprintf(stdnimp,"\n");*/
1624 AX_reg(context)=CX_reg(context);
1627 case 0x08: /* Check if drive is removable. */
1628 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1629 INT21_DriveName( BL_reg(context)));
1630 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1633 SetLastError( ERROR_INVALID_DRIVE );
1634 AX_reg(context) = ERROR_INVALID_DRIVE;
1637 case DRIVE_REMOVABLE:
1638 AX_reg(context) = 0; /* removable */
1641 AX_reg(context) = 1; /* not removable */
1646 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1647 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1648 INT21_DriveName( BL_reg(context)));
1649 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1652 SetLastError( ERROR_INVALID_DRIVE );
1653 AX_reg(context) = ERROR_INVALID_DRIVE;
1657 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1660 DX_reg(context) = 0; /* FIXME: use driver attr here */
1665 case 0x0a: /* check if handle (BX) is remote */
1666 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1667 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1670 DX_reg(context) = 0;
1674 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1675 INT21_DriveName( BL_reg(context)));
1676 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1679 case 0x0e: /* get logical drive mapping */
1680 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1681 INT21_DriveName( BL_reg(context)));
1682 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1685 case 0x0F: /* Set logical drive mapping */
1688 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1689 INT21_DriveName( BL_reg(context)));
1690 drive = DOS_GET_DRIVE ( BL_reg(context) );
1691 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1694 AX_reg(context) = 0x000F; /* invalid drive */
1699 case 0xe0: /* Sun PC-NFS API */
1703 case 0x52: /* DR-DOS version */
1704 /* This is not DR-DOS */
1706 TRACE("GET DR-DOS VERSION requested\n");
1708 AX_reg(context) = 0x0001; /* Invalid function */
1709 SET_CFLAG(context); /* Error */
1710 SetLastError( ERROR_INVALID_FUNCTION );
1714 INT_BARF( context, 0x21 );
1719 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1722 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1723 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1724 DosFileHandleToWin32Handle(BX_reg(context)),
1725 GetCurrentProcess(), &handle,
1726 0, TRUE, DUPLICATE_SAME_ACCESS )))
1727 AX_reg(context) = HFILE_ERROR16;
1729 AX_reg(context) = Win32HandleToDosFileHandle(handle);
1733 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1734 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1735 BX_reg(context),CX_reg(context));
1736 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1739 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1740 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1741 INT21_DriveName( DL_reg(context)));
1742 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1745 case 0x48: /* ALLOCATE MEMORY */
1746 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1751 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1753 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1757 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1759 AX_reg(context) = (DWORD)mem&0xffff;
1764 AX_reg(context) = 0x0008; /* insufficient memory */
1765 BX_reg(context) = DOSMEM_Available()>>4;
1770 case 0x49: /* FREE MEMORY */
1771 TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
1775 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
1778 ret = !GlobalDOSFree16(context->SegEs);
1779 /* If we don't reset ES_reg, we will fail in the relay code */
1784 TRACE("FREE MEMORY failed\n");
1786 AX_reg(context) = 0x0009; /* memory block address invalid */
1791 case 0x4a: /* RESIZE MEMORY BLOCK */
1792 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
1793 if (!ISV86(context))
1794 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1796 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
1797 BX_reg(context)<<4,NULL);
1799 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1802 AX_reg(context) = 0x0008; /* insufficient memory */
1803 BX_reg(context) = DOSMEM_Available()>>4; /* not quite right */
1808 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1809 TRACE("EXEC %s\n", (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
1810 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ),
1812 if (AX_reg(context) < 32) SET_CFLAG(context);
1815 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1816 TRACE("EXIT with return code %d\n",AL_reg(context));
1817 ExitThread( AL_reg(context) );
1820 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1821 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1822 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1823 if (!INT21_FindFirst(context)) break;
1826 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1827 TRACE("FINDNEXT\n");
1828 if (!INT21_FindNext(context))
1830 SetLastError( ERROR_NO_MORE_FILES );
1831 AX_reg(context) = ERROR_NO_MORE_FILES;
1834 else AX_reg(context) = 0; /* OK */
1836 case 0x51: /* GET PSP ADDRESS */
1837 TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1838 /* FIXME: should we return the original DOS PSP upon */
1839 /* Windows startup ? */
1840 BX_reg(context) = GetCurrentPDB16();
1842 case 0x62: /* GET PSP ADDRESS */
1843 /* FIXME: should we return the original DOS PSP upon */
1844 /* Windows startup ? */
1845 BX_reg(context) = GetCurrentPDB16();
1848 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1849 TRACE("SYSVARS - GET LIST OF LISTS\n");
1851 context->SegEs = LOWORD(DOS_LOLSeg);
1852 BX_reg(context) = FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB);
1856 case 0x54: /* Get Verify Flag */
1857 TRACE("Get Verify Flag - Not Supported\n");
1858 AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
1861 case 0x56: /* "RENAME" - RENAME FILE */
1862 TRACE("RENAME %s to %s\n",
1863 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1864 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi));
1865 bSetDOSExtendedError =
1866 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1867 CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi)));
1870 case 0x57: /* FILE DATE AND TIME */
1871 switch (AL_reg(context))
1873 case 0x00: /* Get */
1876 TRACE("GET FILE DATE AND TIME for handle %d\n",
1878 if (!GetFileTime( DosFileHandleToWin32Handle(BX_reg(context)), NULL, NULL, &filetime ))
1879 bSetDOSExtendedError = TRUE;
1880 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1885 case 0x01: /* Set */
1888 TRACE("SET FILE DATE AND TIME for handle %d\n",
1890 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1892 bSetDOSExtendedError =
1893 (!SetFileTime( DosFileHandleToWin32Handle(BX_reg(context)),
1894 NULL, NULL, &filetime ));
1900 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1901 TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1903 switch (AL_reg(context))
1906 AX_reg(context) = 1;
1909 AX_reg(context) = 0;
1915 RESET_CFLAG(context);
1918 case 0x5a: /* CREATE TEMPORARY FILE */
1919 TRACE("CREATE TEMPORARY FILE\n");
1920 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1923 case 0x5b: /* CREATE NEW FILE */
1924 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1925 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1926 bSetDOSExtendedError = ((AX_reg(context) =
1927 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1928 CX_reg(context) )) == (WORD)HFILE_ERROR16);
1931 case 0x5d: /* NETWORK */
1932 FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
1933 /* Fix the following while you're at it. */
1934 SetLastError( ER_NoNetwork );
1935 bSetDOSExtendedError = TRUE;
1939 bSetDOSExtendedError = INT21_networkfunc (context);
1942 case 0x5f: /* NETWORK */
1943 switch (AL_reg(context))
1945 case 0x07: /* ENABLE DRIVE */
1946 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1947 if (!DRIVE_Enable( DL_reg(context) ))
1949 SetLastError( ERROR_INVALID_DRIVE );
1950 bSetDOSExtendedError = TRUE;
1954 case 0x08: /* DISABLE DRIVE */
1955 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1956 if (!DRIVE_Disable( DL_reg(context) ))
1958 SetLastError( ERROR_INVALID_DRIVE );
1959 bSetDOSExtendedError = TRUE;
1964 /* network software not installed */
1965 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
1966 SetLastError( ER_NoNetwork );
1967 bSetDOSExtendedError = TRUE;
1972 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1973 TRACE("TRUENAME %s\n",
1974 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
1976 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1978 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1979 context->Edi),NULL))
1980 bSetDOSExtendedError = TRUE;
1981 else AX_reg(context) = 0;
1985 case 0x61: /* UNUSED */
1986 case 0x63: /* misc. language support */
1987 switch (AL_reg(context)) {
1988 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
1989 INT21_GetDBCSLeadTable(context);
1993 case 0x64: /* OS/2 DOS BOX */
1994 INT_BARF( context, 0x21 );
1998 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
1999 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2000 TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2001 BX_reg(context), DX_reg(context));
2002 switch (AL_reg(context)) {
2004 TRACE("\tget general internationalization info\n");
2006 *(WORD*)(dataptr+1) = 41;
2007 *(WORD*)(dataptr+3) = GetSystemDefaultLangID();
2008 *(WORD*)(dataptr+5) = CodePage;
2009 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2012 TRACE("\tget pointer to collating sequence table\n");
2014 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2015 CX_reg(context) = 258;/*FIXME: size of table?*/
2018 TRACE("\tConvert char to uppercase\n");
2019 DL_reg(context) = toupper(DL_reg(context));
2022 TRACE("\tconvert string to uppercase with length\n");
2024 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
2025 WORD len = CX_reg(context);
2026 while (len--) { *ptr = toupper(*ptr); ptr++; }
2030 TRACE("\tConvert ASCIIZ string to uppercase\n");
2031 _strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx) );
2034 TRACE("\tunimplemented function %d\n",AL_reg(context));
2035 INT_BARF( context, 0x21 );
2041 case 0x66: /* GLOBAL CODE PAGE TABLE */
2042 switch (AL_reg(context))
2045 TRACE("GET GLOBAL CODE PAGE TABLE\n");
2046 DX_reg(context) = BX_reg(context) = CodePage;
2047 RESET_CFLAG(context);
2050 TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2051 BX_reg(context),DX_reg(context));
2052 CodePage = BX_reg(context);
2053 RESET_CFLAG(context);
2058 case 0x67: /* SET HANDLE COUNT */
2059 TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
2060 SetHandleCount16( BX_reg(context) );
2061 if (GetLastError()) bSetDOSExtendedError = TRUE;
2064 case 0x68: /* "FFLUSH" - COMMIT FILE */
2065 case 0x6a: /* COMMIT FILE */
2066 TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
2067 bSetDOSExtendedError = (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ));
2070 case 0x69: /* DISK SERIAL NUMBER */
2071 switch (AL_reg(context))
2074 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
2075 INT21_DriveName(BL_reg(context)));
2076 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2077 else AX_reg(context) = 0;
2081 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
2082 INT21_DriveName(BL_reg(context)));
2083 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2084 else AX_reg(context) = 1;
2089 case 0x6C: /* Extended Open/Create*/
2090 TRACE("EXTENDED OPEN/CREATE %s\n",
2091 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
2092 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2095 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2096 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2097 /* not supported on anything but Win95 */
2098 TRACE("LONG FILENAME functions supported only by win95\n");
2100 AL_reg(context) = 0;
2102 switch(AL_reg(context))
2104 case 0x39: /* Create directory */
2105 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
2106 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2107 bSetDOSExtendedError = (!CreateDirectoryA(
2108 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2109 context->Edx ), NULL));
2110 /* FIXME: CreateDirectory's LastErrors will clash with the ones
2111 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
2112 * denied), while CreateDirectory return several ones. remap some of
2115 if (bSetDOSExtendedError) {
2116 switch (GetLastError()) {
2117 case ERROR_ALREADY_EXISTS:
2118 case ERROR_FILENAME_EXCED_RANGE:
2119 case ERROR_DISK_FULL:
2120 SetLastError(ERROR_ACCESS_DENIED);
2126 case 0x3a: /* Remove directory */
2127 TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
2128 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2129 bSetDOSExtendedError = (!RemoveDirectoryA(
2130 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2133 case 0x43: /* Get/Set file attributes */
2134 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2135 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2136 switch (BL_reg(context))
2138 case 0x00: /* Get file attributes */
2139 TRACE("\tretrieve attributes\n");
2140 CX_reg(context) = (WORD)GetFileAttributesA(
2141 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2143 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2146 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
2147 bSetDOSExtendedError = (!SetFileAttributesA(
2148 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2150 CX_reg(context) ) );
2153 FIXME("Unimplemented long file name function:\n");
2154 INT_BARF( context, 0x21 );
2156 AL_reg(context) = 0;
2160 case 0x47: /* Get current directory */
2161 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2162 INT21_DriveName(DL_reg(context)));
2163 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2166 case 0x4e: /* Find first file */
2167 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2168 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2169 /* FIXME: use attributes in CX */
2170 if ((AX_reg(context) = FindFirstFile16(
2171 CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
2172 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2174 == INVALID_HANDLE_VALUE16)
2175 bSetDOSExtendedError = TRUE;
2177 case 0x4f: /* Find next file */
2178 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2180 if (!FindNextFile16( BX_reg(context),
2181 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2183 bSetDOSExtendedError = TRUE;
2187 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
2188 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2189 DWORD filename_len, flags;
2191 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
2192 AX_reg(context) = 0;
2193 if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
2194 &flags, buffer, 8 ))
2196 INT_BARF( context, 0x21 );
2200 BX_reg(context) = flags | 0x4000; /* support for LFN functions */
2201 CX_reg(context) = filename_len;
2202 DX_reg(context) = MAX_PATH; /* FIXME: which len if DRIVE_SHORT_NAMES ? */
2205 case 0xa1: /* Find close */
2206 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
2208 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2211 switch(CL_reg(context))
2213 case 0x01: /* Get short filename or path */
2214 if (!GetShortPathNameA
2215 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2217 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2219 bSetDOSExtendedError = TRUE;
2220 else AX_reg(context) = 0;
2222 case 0x02: /* Get canonical long filename or path */
2223 if (!GetFullPathNameA
2224 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2226 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2227 context->Edi),NULL))
2228 bSetDOSExtendedError = TRUE;
2229 else AX_reg(context) = 0;
2232 FIXME("Unimplemented long file name function:\n");
2233 INT_BARF( context, 0x21 );
2235 AL_reg(context) = 0;
2239 case 0x6c: /* Create or open file */
2240 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
2241 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
2242 /* translate Dos 7 action to Dos 6 action */
2243 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2246 case 0x3b: /* Change directory */
2247 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2248 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2249 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2255 AL_reg(context) = GetLastError();
2258 case 0x41: /* Delete file */
2259 TRACE("LONG FILENAME - DELETE FILE %s\n",
2260 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2261 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2266 AL_reg(context) = GetLastError();
2269 case 0x56: /* Move (rename) file */
2271 LPCSTR fn1 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2272 LPCSTR fn2 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2273 TRACE("LONG FILENAME - RENAME FILE %s to %s\n", fn1, fn2);
2274 if (!MoveFileA(fn1, fn2))
2277 AL_reg(context) = GetLastError();
2282 FIXME("Unimplemented long file name function:\n");
2283 INT_BARF( context, 0x21 );
2285 AL_reg(context) = 0;
2290 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2291 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2292 TRACE("windows95 function AX %04x\n",
2294 WARN(" returning unimplemented\n");
2296 AL_reg(context) = 0;
2299 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2300 TRACE("windows95 function AX %04x\n",
2303 switch (AL_reg(context))
2305 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2306 /* ES:DI points to word with length of data (should be 0x3d) */
2310 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2311 char root[] = "A:\\";
2313 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2315 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2317 /* validate passed-in buffer lengths */
2318 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
2320 WARN("Get Extended DPB: buffer lengths incorrect\n");
2321 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
2323 AL_reg(context) = 0x18; /* bad buffer length */
2326 /* buffer checks out */
2327 buffer++; /* skip over length word now */
2328 if (FillInDrivePB( DX_reg(context) ) )
2330 edpb = (struct EDPB *)buffer;
2332 /* copy down the old-style DPB portion first */
2333 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2335 /* now fill in the extended entries */
2336 edpb->edpb_flags = 0;
2337 edpb->next_edpb = 0;
2338 edpb->free_cluster = edpb->free_cluster2 = 0;
2340 /* determine free disk space */
2341 *root += DOS_GET_DRIVE( DX_reg(context) );
2342 GetDiskFreeSpaceA( root, &cluster_sectors, §or_bytes,
2343 &free_clusters, &total_clusters );
2345 edpb->clusters_free = (free_clusters&0xffff);
2347 edpb->clusters_free_hi = free_clusters >> 16;
2348 edpb->mirroring_flags = 0;
2349 edpb->info_sector = 0xffff;
2350 edpb->spare_boot_sector = 0xffff;
2351 edpb->first_cluster = 0;
2352 edpb->max_cluster = total_clusters;
2353 edpb->fat_clusters = 32; /* made-up value */
2354 edpb->root_cluster = 0;
2356 RESET_CFLAG(context); /* clear carry */
2357 AX_reg(context) = 0;
2361 AX_reg(context) = 0x00ff;
2367 case 0x03: /* Get Extended free space on drive */
2368 case 0x04: /* Set DPB for formatting */
2369 case 0x05: /* extended absolute disk read/write */
2370 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2372 AL_reg(context) = 0;
2379 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2380 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2384 INT_BARF( context, 0x21 );
2387 } /* END OF SWITCH */
2389 if( bSetDOSExtendedError ) /* set general error condition */
2391 AX_reg(context) = GetLastError();
2395 if ((context->EFlags & 0x0001))
2396 TRACE("failed, error %ld\n", GetLastError() );
2398 TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2399 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2400 AX_reg(context), BX_reg(context), CX_reg(context),
2401 DX_reg(context), SI_reg(context), DI_reg(context),
2402 (WORD)context->SegDs, (WORD)context->SegEs,
2406 /***********************************************************************
2407 * GetSetKernelDOSProc (KERNEL.311)
2409 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2411 FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);