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 SET_AX( context, cluster_sectors );
221 SET_BX( context, free_clusters );
222 SET_CX( context, sector_bytes );
223 SET_DX( 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 SET_BX( 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 SET_AL( context, 0x00 );
281 context->SegDs = SELECTOROF(dpbsegptr);
282 SET_BX( context, OFFSETOF(dpbsegptr) );
286 SET_AX( 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 SET_DX( context, dev->flags );
307 /* it seems to be a file */
308 curr_drive = DRIVE_GetCurrentDrive();
309 SET_DX( 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 SET_AX( 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 SET_AX( 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 SET_AL( 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);
465 SET_AL( context, ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0 );
467 /* point DS:SI to first unparsed character */
468 SET_SI( context, context->Esi + (int)s - (int)filename );
471 static void INT21_GetSystemDate( CONTEXT86 *context )
474 GetLocalTime( &systime );
475 SET_CX( context, systime.wYear );
476 SET_DX( context, (systime.wMonth << 8) | systime.wDay );
477 SET_AX( context, systime.wDayOfWeek );
480 static void INT21_GetSystemTime( CONTEXT86 *context )
483 GetLocalTime( &systime );
484 SET_CX( context, (systime.wHour << 8) | systime.wMinute );
485 SET_DX( context, (systime.wSecond << 8) | (systime.wMilliseconds / 10) );
488 /* Many calls translate a drive argument like this:
489 drive number (00h = default, 01h = A:, etc)
491 static char drivestring[]="default";
493 char *INT21_DriveName(int drive)
498 drivestring[0]= (unsigned char)drive + '@';
504 static BOOL INT21_CreateFile( CONTEXT86 *context )
506 SET_AX( context, _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
507 context->Edx ), CX_reg(context) ) );
508 return (AX_reg(context) == (WORD)HFILE_ERROR16);
511 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
513 /* Mask off all flags not explicitly allowed by the doc */
514 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
515 return Win32HandleToDosFileHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
516 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
517 CREATE_NEW, attr, 0 ));
520 static void OpenExistingFile( CONTEXT86 *context )
522 SET_AX( context, _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
524 if (AX_reg(context) == (WORD)HFILE_ERROR16)
526 SET_AX( context, GetLastError() );
531 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
533 BOOL bExtendedError = FALSE;
534 BYTE action = DL_reg(context);
536 /* Shuffle arguments to call OpenExistingFile */
537 SET_AL( context, BL_reg(context) );
538 SET_DX( context, SI_reg(context) );
539 /* BX,CX and DX should be preserved */
540 OpenExistingFile(context);
542 if ((context->EFlags & 0x0001) == 0) /* File exists */
544 UINT16 uReturnCX = 0;
546 /* Now decide what do do */
548 if ((action & 0x07) == 0)
550 _lclose16( AX_reg(context) );
551 SET_AX( context, 0x0050 ); /*File exists*/
553 WARN("extended open/create: failed because file exists \n");
555 else if ((action & 0x07) == 2)
557 /* Truncate it, but first check if opened for write */
558 if ((BL_reg(context) & 0x0007)== 0)
560 _lclose16( AX_reg(context) );
561 WARN("extended open/create: failed, trunc on ro file\n");
562 SET_AX( context, 0x000C ); /*Access code invalid*/
567 TRACE("extended open/create: Closing before truncate\n");
568 if (_lclose16( AX_reg(context) ))
570 WARN("extended open/create: close before trunc failed\n");
571 SET_AX( context, 0x0019 ); /*Seek Error*/
572 SET_CX( context, 0 );
575 /* Shuffle arguments to call CreateFile */
577 TRACE("extended open/create: Truncating\n");
578 SET_AL( context, BL_reg(context) );
579 /* CX is still the same */
580 SET_DX( context, SI_reg(context) );
581 bExtendedError = INT21_CreateFile(context);
583 if (context->EFlags & 0x0001) /*no file open, flags set */
585 WARN("extended open/create: trunc failed\n");
586 return bExtendedError;
591 else uReturnCX = 0x1;
593 SET_CX( context, uReturnCX );
595 else /* file does not exist */
597 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
598 if ((action & 0xF0)== 0)
600 SET_CX( context, 0 );
602 WARN("extended open/create: failed, file dosen't exist\n");
606 /* Shuffle arguments to call CreateFile */
607 TRACE("extended open/create: Creating\n");
608 SET_AL( context, BL_reg(context) );
609 /* CX should still be the same */
610 SET_DX( context, SI_reg(context) );
611 bExtendedError = INT21_CreateFile(context);
612 if (context->EFlags & 0x0001) /*no file open, flags set */
614 WARN("extended open/create: create failed\n");
615 return bExtendedError;
617 SET_CX( context, 2 );
621 return bExtendedError;
625 static BOOL INT21_ChangeDir( CONTEXT86 *context )
628 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
629 WCHAR dirnameW[MAX_PATH];
631 TRACE("changedir %s\n", dirname);
632 if (dirname[0] && (dirname[1] == ':'))
634 drive = toupper(dirname[0]) - 'A';
637 else drive = DRIVE_GetCurrentDrive();
638 MultiByteToWideChar(CP_OEMCP, 0, dirname, -1, dirnameW, MAX_PATH);
639 return DRIVE_Chdir( drive, dirnameW );
643 static int INT21_FindFirst( CONTEXT86 *context )
647 DOS_FULL_NAME full_name;
648 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
649 WCHAR pathW[MAX_PATH];
652 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
653 MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH);
655 dta->unixPath = NULL;
656 if (!DOSFS_GetFullName( pathW, FALSE, &full_name ))
658 SET_AX( context, GetLastError() );
662 dta->unixPath = HeapAlloc( GetProcessHeap(), 0, strlen(full_name.long_name)+1 );
663 strcpy( dta->unixPath, full_name.long_name );
664 p = strrchr( dta->unixPath, '/' );
667 MultiByteToWideChar(CP_OEMCP, 0, p + 1, -1, pathW, MAX_PATH);
669 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
670 * (doesn't matter as it is set below anyway)
672 if (!DOSFS_ToDosFCBFormat( pathW, maskW ))
674 HeapFree( GetProcessHeap(), 0, dta->unixPath );
675 dta->unixPath = NULL;
676 SetLastError( ERROR_FILE_NOT_FOUND );
677 SET_AX( context, ERROR_FILE_NOT_FOUND );
681 WideCharToMultiByte(CP_OEMCP, 0, maskW, 12, dta->mask, sizeof(dta->mask), NULL, NULL);
682 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
683 : DRIVE_GetCurrentDrive();
685 dta->search_attr = CL_reg(context);
690 static int INT21_FindNext( CONTEXT86 *context )
692 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
693 WIN32_FIND_DATAA entry;
696 if (!dta->unixPath) return 0;
697 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
698 dta->search_attr, dta->count, &entry )))
700 HeapFree( GetProcessHeap(), 0, dta->unixPath );
701 dta->unixPath = NULL;
704 if ((int)dta->count + count > 0xffff)
706 WARN("Too many directory entries in %s\n", dta->unixPath );
707 HeapFree( GetProcessHeap(), 0, dta->unixPath );
708 dta->unixPath = NULL;
712 dta->fileattr = entry.dwFileAttributes;
713 dta->filesize = entry.nFileSizeLow;
714 FileTimeToDosDateTime( &entry.ftLastWriteTime,
715 &dta->filedate, &dta->filetime );
716 strcpy( dta->filename, entry.cAlternateFileName );
717 if (!memchr(dta->mask,'?',11)) {
718 /* wildcardless search, release resources in case no findnext will
719 * be issued, and as a workaround in case file creation messes up
720 * findnext, as sometimes happens with pkunzip */
721 HeapFree( GetProcessHeap(), 0, dta->unixPath );
722 dta->unixPath = NULL;
728 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
730 static int counter = 0;
731 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
732 char *p = name + strlen(name);
734 /* despite what Ralf Brown says, some programs seem to call without
735 * ending backslash (DOS accepts that, so we accept it too) */
736 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
740 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
741 counter = (counter + 1) % 1000;
743 if ((SET_AX( context, _lcreat16_uniq( name, 0 ))) != (WORD)HFILE_ERROR16)
745 TRACE("created %s\n", name );
748 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
753 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
755 int drive = DOS_GET_DRIVE( DL_reg(context) );
756 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
758 if (!DRIVE_IsValid(drive))
760 SetLastError( ERROR_INVALID_DRIVE );
763 WideCharToMultiByte(CP_OEMCP, 0, DRIVE_GetDosCwd(drive), -1, ptr, 64, NULL, NULL);
764 ptr[63] = 0; /* ensure 0 termination */
765 SET_AX( context, 0x0100 ); /* success return code */
770 static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
772 if (heap || INT21_CreateHeap())
773 { /* return an empty table just as DOS 4.0+ does */
774 context->SegDs = DosHeapHandle;
775 SET_SI( context, (int)&heap->DummyDBCSLeadTable - (int)heap );
779 SET_AX( context, 0x1 ); /* error */
785 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
787 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
788 int drive = DOS_GET_DRIVE( BL_reg(context) );
790 if (!DRIVE_IsValid(drive))
792 SetLastError( ERROR_INVALID_DRIVE );
796 *(WORD *)dataptr = 0;
797 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
798 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
799 strncpy(dataptr + 0x11, "FAT16 ", 8);
804 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
806 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
807 int drive = DOS_GET_DRIVE( BL_reg(context) );
809 if (!DRIVE_IsValid(drive))
811 SetLastError( ERROR_INVALID_DRIVE );
815 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
820 /* microsoft's programmers should be shot for using CP/M style int21
821 calls in Windows for Workgroup's winfile.exe */
823 static int INT21_FindFirstFCB( CONTEXT86 *context )
825 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
830 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
831 else pFCB = (FINDFILE_FCB *)fcb;
832 drive = DOS_GET_DRIVE( pFCB->drive );
833 if (!DRIVE_IsValid( drive )) return 0;
834 root = DRIVE_GetRoot( drive );
835 cwd = DRIVE_GetUnixCwd( drive );
836 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
837 strlen(root)+strlen(cwd)+2 );
838 if (!pFCB->unixPath) return 0;
839 strcpy( pFCB->unixPath, root );
840 strcat( pFCB->unixPath, "/" );
841 strcat( pFCB->unixPath, cwd );
847 static int INT21_FindNextFCB( CONTEXT86 *context )
849 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
851 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
852 WIN32_FIND_DATAA entry;
856 if (*fcb == 0xff) /* extended FCB ? */
859 pFCB = (FINDFILE_FCB *)(fcb + 7);
864 pFCB = (FINDFILE_FCB *)fcb;
867 if (!pFCB->unixPath) return 0;
868 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
869 DOS_GET_DRIVE( pFCB->drive ), attr,
870 pFCB->count, &entry )))
872 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
873 pFCB->unixPath = NULL;
876 pFCB->count += count;
878 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
879 *(BYTE *)pResult = 0xff;
880 (BYTE *)pResult +=6; /* leave reserved field behind */
881 *(BYTE *)pResult = entry.dwFileAttributes;
884 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
886 pResult->fileattr = entry.dwFileAttributes;
887 pResult->cluster = 0; /* what else? */
888 pResult->filesize = entry.nFileSizeLow;
889 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
890 FileTimeToDosDateTime( &entry.ftLastWriteTime,
891 &pResult->filedate, &pResult->filetime );
893 /* Convert file name to FCB format */
895 memset( pResult->filename, ' ', sizeof(pResult->filename) );
896 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
897 else if (!strcmp( entry.cAlternateFileName, ".." ))
898 pResult->filename[0] = pResult->filename[1] = '.';
901 char *p = strrchr( entry.cAlternateFileName, '.' );
902 if (p && p[1] && (p != entry.cAlternateFileName))
904 memcpy( pResult->filename, entry.cAlternateFileName,
905 min( (p - entry.cAlternateFileName), 8 ) );
906 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
909 memcpy( pResult->filename, entry.cAlternateFileName,
910 min( strlen(entry.cAlternateFileName), 8 ) );
916 static void DeleteFileFCB( CONTEXT86 *context )
918 FIXME("(%p): stub\n", context);
921 static void RenameFileFCB( CONTEXT86 *context )
923 FIXME("(%p): stub\n", context);
928 static void fLock( CONTEXT86 * context )
931 switch ( AX_reg(context) & 0xff )
933 case 0x00: /* LOCK */
934 TRACE("lock handle %d offset %ld length %ld\n",
936 MAKELONG(DX_reg(context),CX_reg(context)),
937 MAKELONG(DI_reg(context),SI_reg(context))) ;
938 if (!LockFile(DosFileHandleToWin32Handle(BX_reg(context)),
939 MAKELONG(DX_reg(context),CX_reg(context)), 0,
940 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
941 SET_AX( context, GetLastError() );
946 case 0x01: /* UNLOCK */
947 TRACE("unlock handle %d offset %ld length %ld\n",
949 MAKELONG(DX_reg(context),CX_reg(context)),
950 MAKELONG(DI_reg(context),SI_reg(context))) ;
951 if (!UnlockFile(DosFileHandleToWin32Handle(BX_reg(context)),
952 MAKELONG(DX_reg(context),CX_reg(context)), 0,
953 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
954 SET_AX( context, GetLastError() );
959 SET_AX( context, 0x0001 );
966 INT21_networkfunc (CONTEXT86 *context)
968 switch (AL_reg(context)) {
969 case 0x00: /* Get machine name. */
971 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
972 TRACE("getting machine name to %p\n", dst);
973 if (gethostname (dst, 15))
976 SetLastError( ER_NoNetwork );
979 int len = strlen (dst);
983 SET_CH( context, 1 ); /* Valid */
984 SET_CL( context, 1 ); /* NETbios number??? */
985 TRACE("returning %s\n", debugstr_an (dst, 16));
991 SetLastError( ER_NoNetwork );
997 static void ASPI_DOS_HandleInt( CONTEXT86 *context )
999 if (!Dosvm.ASPIHandler && !DPMI_LoadDosSystem())
1001 ERR("could not setup ASPI handler\n");
1004 Dosvm.ASPIHandler( context );
1008 /***********************************************************************
1011 void WINAPI INT_Int21Handler( CONTEXT86 *context )
1013 BOOL bSetDOSExtendedError = FALSE;
1015 switch(AH_reg(context))
1017 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1018 TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1019 context->SegDs,DX_reg(context) );
1021 LPSTR data = CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
1023 /* do NOT use strchr() to calculate the string length,
1024 as '\0' is valid string content, too !
1025 Maybe we should check for non-'$' strings, but DOS doesn't. */
1026 while (*p != '$') p++;
1027 _hwrite16( 1, data, (int)p - (int)data);
1028 SET_AL( context, '$' ); /* yes, '$' (0x24) gets returned in AL */
1032 case 0x0a: /* BUFFERED INPUT */
1034 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1038 TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
1040 TRACE("Handle old chars in buffer!\n");
1041 res=_lread16( 0, buffer+2,buffer[0]);
1043 if(buffer[res+1] == '\n')
1044 buffer[res+1] = '\r';
1048 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1052 case 0x0e: /* SELECT DEFAULT DRIVE */
1053 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1054 DRIVE_SetCurrentDrive( DL_reg(context) );
1055 SET_AL( context, MAX_DOS_DRIVES );
1058 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1059 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
1060 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1061 if (!INT21_FindFirstFCB(context))
1063 SET_AL( context, 0xff );
1066 /* else fall through */
1068 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1069 SET_AL( context, INT21_FindNextFCB(context) ? 0x00 : 0xff );
1072 case 0x13: /* DELETE FILE USING FCB */
1073 DeleteFileFCB(context);
1076 case 0x17: /* RENAME FILE USING FCB */
1077 RenameFileFCB(context);
1080 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1081 SET_AL( context, DRIVE_GetCurrentDrive() );
1084 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1086 TDB *pTask = TASK_GetCurrent();
1087 pTask->dta = MAKESEGPTR(context->SegDs,DX_reg(context));
1088 TRACE("Set DTA: %08lx\n", pTask->dta);
1092 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1093 SET_DL( context, 0 );
1094 if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff );
1097 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1098 if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff );
1101 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1102 GetDrivePB(context, DRIVE_GetCurrentDrive());
1105 case 0x29: /* PARSE FILENAME INTO FCB */
1106 INT21_ParseFileNameIntoFCB(context);
1109 case 0x2a: /* GET SYSTEM DATE */
1110 INT21_GetSystemDate(context);
1113 case 0x2c: /* GET SYSTEM TIME */
1114 INT21_GetSystemTime(context);
1117 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1118 TRACE("GET DISK TRANSFER AREA ADDRESS\n");
1120 TDB *pTask = TASK_GetCurrent();
1121 context->SegEs = SELECTOROF( pTask->dta );
1122 SET_BX( context, OFFSETOF( pTask->dta ) );
1126 case 0x30: /* GET DOS VERSION */
1127 TRACE("GET DOS VERSION %s requested\n",
1128 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1129 SET_AX( context, (HIWORD(GetVersion16()) >> 8) | (HIWORD(GetVersion16()) << 8) );
1131 SET_AH( context, 0x7 );
1132 SET_AL( context, 0xA );
1135 SET_BX( context, 0x00FF ); /* 0x123456 is Wine's serial # */
1136 SET_CX( context, 0x0000 );
1139 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1140 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1141 INT21_DriveName( DL_reg(context)));
1142 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1145 case 0x33: /* MULTIPLEXED */
1146 switch (AL_reg(context))
1148 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1149 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
1150 INT21_ReadConfigSys();
1151 SET_DL( context, DOSCONF_config.brk_flag );
1154 case 0x01: /* SET EXTENDED BREAK STATE */
1155 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
1156 INT21_ReadConfigSys();
1157 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1160 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1161 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1162 INT21_ReadConfigSys();
1163 /* ugly coding in order to stay reentrant */
1164 if (DL_reg(context))
1166 SET_DL( context, DOSCONF_config.brk_flag );
1167 DOSCONF_config.brk_flag = 1;
1171 SET_DL( context, DOSCONF_config.brk_flag );
1172 DOSCONF_config.brk_flag = 0;
1176 case 0x05: /* GET BOOT DRIVE */
1177 TRACE("GET BOOT DRIVE\n");
1178 SET_DL( context, 3 );
1179 /* c: is Wine's bootdrive (a: is 1)*/
1182 case 0x06: /* GET TRUE VERSION NUMBER */
1183 TRACE("GET TRUE VERSION NUMBER\n");
1184 SET_BX( context, (HIWORD(GetVersion16() >> 8)) | (HIWORD(GetVersion16() << 8)) );
1185 SET_DX( context, 0x00 );
1189 INT_BARF( context, 0x21 );
1194 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1195 TRACE("GET ADDRESS OF INDOS FLAG\n");
1196 if (!heap) INT21_CreateHeap();
1197 context->SegEs = DosHeapHandle;
1198 SET_BX( context, (int)&heap->InDosFlag - (int)heap );
1201 case 0x36: /* GET FREE DISK SPACE */
1202 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1203 INT21_DriveName( DL_reg(context)));
1204 if (!INT21_GetFreeDiskSpace(context)) SET_AX( context, 0xffff );
1209 unsigned char switchchar='/';
1210 switch (AL_reg(context))
1212 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1213 TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
1214 SET_AL( context, 0x00 ); /* success*/
1215 SET_DL( context, switchchar );
1217 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1218 TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
1219 switchchar = DL_reg(context);
1220 SET_AL( context, 0x00 ); /* success*/
1222 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1223 INT_BARF( context, 0x21 );
1229 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1231 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1232 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1233 context->Edx ), NULL));
1234 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1235 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1236 * denied), while CreateDirectory return several ones. remap some of
1239 if (bSetDOSExtendedError) {
1240 switch (GetLastError()) {
1241 case ERROR_ALREADY_EXISTS:
1242 case ERROR_FILENAME_EXCED_RANGE:
1243 case ERROR_DISK_FULL:
1244 SetLastError(ERROR_ACCESS_DENIED);
1251 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1253 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1254 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1258 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1260 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1261 bSetDOSExtendedError = !INT21_ChangeDir(context);
1264 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1265 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1266 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1267 bSetDOSExtendedError = INT21_CreateFile( context );
1270 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1271 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1272 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1273 OpenExistingFile(context);
1276 case 0x3e: /* "CLOSE" - CLOSE FILE */
1277 TRACE("CLOSE handle %d\n",BX_reg(context));
1278 bSetDOSExtendedError = ((SET_AX( context, _lclose16( BX_reg(context) )) != 0) );
1281 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1282 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1283 context->SegDs,DX_reg(context),CX_reg(context) );
1287 result = _hread16( BX_reg(context),
1288 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1292 result = WIN16_hread( BX_reg(context),
1293 MAKESEGPTR( context->SegDs, context->Edx ),
1295 if (result == -1) bSetDOSExtendedError = TRUE;
1296 else SET_AX( context, (WORD)result );
1300 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1301 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1302 context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
1304 LONG result = _hwrite16( BX_reg(context),
1305 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1308 if (result == -1) bSetDOSExtendedError = TRUE;
1309 else SET_AX( context, (WORD)result );
1313 case 0x41: /* "UNLINK" - DELETE FILE */
1314 TRACE("UNLINK %s\n",
1315 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1316 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1320 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1321 TRACE("LSEEK handle %d offset %ld from %s\n",
1322 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1323 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1324 "current file position":"end of file");
1326 LONG status = _llseek16( BX_reg(context),
1327 MAKELONG(DX_reg(context),CX_reg(context)),
1329 if (status == -1) bSetDOSExtendedError = TRUE;
1332 SET_AX( context, LOWORD(status) );
1333 SET_DX( context, HIWORD(status) );
1338 case 0x43: /* FILE ATTRIBUTES */
1339 switch (AL_reg(context))
1342 TRACE("GET FILE ATTRIBUTES for %s\n",
1343 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1344 SET_AX( context, GetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1346 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1347 else SET_CX( context, AX_reg(context) );
1351 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1352 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1353 bSetDOSExtendedError =
1354 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1359 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1360 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1364 case 0x44: /* IOCTL */
1365 switch (AL_reg(context))
1368 ioctlGetDeviceInfo(context);
1374 const DOS_DEVICE *dev;
1375 static const WCHAR scsimgrW[] = {'S','C','S','I','M','G','R','$',0};
1376 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )) &&
1377 !strcmpiW( dev->name, scsimgrW ))
1379 ASPI_DOS_HandleInt(context);
1383 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1384 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1385 int drive = DOS_GET_DRIVE(BL_reg(context));
1387 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1388 /* for (i=0;i<CX_reg(context);i++)
1389 fprintf(stdnimp,"%02x ",dataptr[i]);
1390 fprintf(stdnimp,"\n");*/
1391 SET_AX( context, context->Ecx );
1394 case 0x08: /* Check if drive is removable. */
1395 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1396 INT21_DriveName( BL_reg(context)));
1397 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1400 SetLastError( ERROR_INVALID_DRIVE );
1401 SET_AX( context, ERROR_INVALID_DRIVE );
1404 case DRIVE_REMOVABLE:
1405 SET_AX( context, 0 ); /* removable */
1408 SET_AX( context, 1 ); /* not removable */
1413 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1414 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1415 INT21_DriveName( BL_reg(context)));
1416 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1419 SetLastError( ERROR_INVALID_DRIVE );
1420 SET_AX( context, ERROR_INVALID_DRIVE );
1424 SET_DX( context, (1<<9) | (1<<12) ); /* remote */
1427 SET_DX( context, 0 ); /* FIXME: use driver attr here */
1432 case 0x0a: /* check if handle (BX) is remote */
1433 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1434 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1437 SET_DX( context, 0 );
1441 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1442 INT21_DriveName( BL_reg(context)));
1443 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1446 case 0x0e: /* get logical drive mapping */
1447 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1448 INT21_DriveName( BL_reg(context)));
1449 SET_AL( context, 0 ); /* drive has no mapping - FIXME: may be wrong*/
1452 case 0x0F: /* Set logical drive mapping */
1455 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1456 INT21_DriveName( BL_reg(context)));
1457 drive = DOS_GET_DRIVE ( BL_reg(context) );
1458 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1461 SET_AX( context, 0x000F ); /* invalid drive */
1466 case 0xe0: /* Sun PC-NFS API */
1470 case 0x52: /* DR-DOS version */
1471 /* This is not DR-DOS */
1473 TRACE("GET DR-DOS VERSION requested\n");
1475 SET_AX( context, 0x0001 ); /* Invalid function */
1476 SET_CFLAG(context); /* Error */
1477 SetLastError( ERROR_INVALID_FUNCTION );
1481 INT_BARF( context, 0x21 );
1486 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1489 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1490 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1491 DosFileHandleToWin32Handle(BX_reg(context)),
1492 GetCurrentProcess(), &handle,
1493 0, TRUE, DUPLICATE_SAME_ACCESS )))
1494 SET_AX( context, HFILE_ERROR16 );
1496 SET_AX( context, Win32HandleToDosFileHandle(handle) );
1500 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1501 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1502 BX_reg(context),CX_reg(context));
1503 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1506 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1507 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1508 INT21_DriveName( DL_reg(context)));
1509 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1512 case 0x48: /* ALLOCATE MEMORY */
1513 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1518 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1520 SET_AX( context, DOSMEM_MapLinearToDos(mem)>>4 );
1524 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1526 SET_AX( context, (DWORD)mem&0xffff );
1531 SET_AX( context, 0x0008 ); /* insufficient memory */
1532 SET_BX( context, DOSMEM_Available()>>4 );
1537 case 0x49: /* FREE MEMORY */
1538 TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
1542 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
1545 ret = !GlobalDOSFree16(context->SegEs);
1546 /* If we don't reset ES_reg, we will fail in the relay code */
1551 TRACE("FREE MEMORY failed\n");
1553 SET_AX( context, 0x0009 ); /* memory block address invalid */
1558 case 0x4a: /* RESIZE MEMORY BLOCK */
1559 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
1560 if (!ISV86(context))
1561 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1563 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
1564 BX_reg(context)<<4,NULL);
1566 SET_AX( context, DOSMEM_MapLinearToDos(mem)>>4 );
1569 SET_AX( context, 0x0008 ); /* insufficient memory */
1570 SET_BX( context, DOSMEM_Available()>>4 ); /* not quite right */
1575 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1576 TRACE("EXEC %s\n", (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
1577 SET_AX( context, WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ),
1579 if (AX_reg(context) < 32) SET_CFLAG(context);
1582 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1583 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1584 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1585 if (!INT21_FindFirst(context)) break;
1588 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1589 TRACE("FINDNEXT\n");
1590 if (!INT21_FindNext(context))
1592 SetLastError( ERROR_NO_MORE_FILES );
1593 SET_AX( context, ERROR_NO_MORE_FILES );
1596 else SET_AX( context, 0 ); /* OK */
1598 case 0x51: /* GET PSP ADDRESS */
1599 TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1600 /* FIXME: should we return the original DOS PSP upon */
1601 /* Windows startup ? */
1602 SET_BX( context, GetCurrentPDB16() );
1604 case 0x62: /* GET PSP ADDRESS */
1605 /* FIXME: should we return the original DOS PSP upon */
1606 /* Windows startup ? */
1607 SET_BX( context, GetCurrentPDB16() );
1610 case 0x56: /* "RENAME" - RENAME FILE */
1611 TRACE("RENAME %s to %s\n",
1612 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1613 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi));
1614 bSetDOSExtendedError =
1615 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1616 CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi)));
1619 case 0x57: /* FILE DATE AND TIME */
1620 switch (AL_reg(context))
1622 case 0x00: /* Get */
1625 TRACE("GET FILE DATE AND TIME for handle %d\n",
1627 if (!GetFileTime( DosFileHandleToWin32Handle(BX_reg(context)), NULL, NULL, &filetime ))
1628 bSetDOSExtendedError = TRUE;
1632 FileTimeToDosDateTime( &filetime, &date, &time );
1633 SET_DX( context, date );
1634 SET_CX( context, time );
1639 case 0x01: /* Set */
1642 TRACE("SET FILE DATE AND TIME for handle %d\n",
1644 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1646 bSetDOSExtendedError =
1647 (!SetFileTime( DosFileHandleToWin32Handle(BX_reg(context)),
1648 NULL, NULL, &filetime ));
1654 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1655 TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1657 switch (AL_reg(context))
1660 SET_AX( context, 1 );
1663 SET_AX( context, 0 );
1669 RESET_CFLAG(context);
1672 case 0x5a: /* CREATE TEMPORARY FILE */
1673 TRACE("CREATE TEMPORARY FILE\n");
1674 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1677 case 0x5b: /* CREATE NEW FILE */
1678 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1679 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1680 bSetDOSExtendedError = ((SET_AX( context,
1681 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1682 CX_reg(context) ))) == (WORD)HFILE_ERROR16);
1685 case 0x5d: /* NETWORK */
1686 FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
1687 /* Fix the following while you're at it. */
1688 SetLastError( ER_NoNetwork );
1689 bSetDOSExtendedError = TRUE;
1693 bSetDOSExtendedError = INT21_networkfunc (context);
1696 case 0x5f: /* NETWORK */
1697 switch (AL_reg(context))
1699 case 0x07: /* ENABLE DRIVE */
1700 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1701 if (!DRIVE_Enable( DL_reg(context) ))
1703 SetLastError( ERROR_INVALID_DRIVE );
1704 bSetDOSExtendedError = TRUE;
1708 case 0x08: /* DISABLE DRIVE */
1709 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1710 if (!DRIVE_Disable( DL_reg(context) ))
1712 SetLastError( ERROR_INVALID_DRIVE );
1713 bSetDOSExtendedError = TRUE;
1718 /* network software not installed */
1719 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
1720 SetLastError( ER_NoNetwork );
1721 bSetDOSExtendedError = TRUE;
1726 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1727 TRACE("TRUENAME %s\n",
1728 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
1730 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1732 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1733 context->Edi),NULL))
1734 bSetDOSExtendedError = TRUE;
1735 else SET_AX( context, 0 );
1739 case 0x61: /* UNUSED */
1740 case 0x63: /* misc. language support */
1741 switch (AL_reg(context)) {
1742 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
1743 INT21_GetDBCSLeadTable(context);
1747 case 0x64: /* OS/2 DOS BOX */
1748 INT_BARF( context, 0x21 );
1752 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
1753 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
1754 TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
1755 BX_reg(context), DX_reg(context));
1756 switch (AL_reg(context)) {
1758 TRACE("\tget general internationalization info\n");
1760 *(WORD*)(dataptr+1) = 41;
1761 *(WORD*)(dataptr+3) = GetSystemDefaultLangID();
1762 *(WORD*)(dataptr+5) = CodePage;
1763 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
1766 TRACE("\tget pointer to collating sequence table\n");
1768 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
1769 SET_CX( context, 258 );/*FIXME: size of table?*/
1772 TRACE("\tConvert char to uppercase\n");
1773 SET_DL( context, toupper(DL_reg(context)) );
1776 TRACE("\tconvert string to uppercase with length\n");
1778 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
1779 WORD len = CX_reg(context);
1780 while (len--) { *ptr = toupper(*ptr); ptr++; }
1784 TRACE("\tConvert ASCIIZ string to uppercase\n");
1785 _strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx) );
1788 TRACE("\tunimplemented function %d\n",AL_reg(context));
1789 INT_BARF( context, 0x21 );
1795 case 0x66: /* GLOBAL CODE PAGE TABLE */
1796 switch (AL_reg(context))
1799 TRACE("GET GLOBAL CODE PAGE TABLE\n");
1800 SET_BX( context, CodePage );
1801 SET_DX( context, CodePage );
1802 RESET_CFLAG(context);
1805 TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
1806 BX_reg(context),DX_reg(context));
1807 CodePage = BX_reg(context);
1808 RESET_CFLAG(context);
1813 case 0x67: /* SET HANDLE COUNT */
1814 TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
1815 SetHandleCount16( BX_reg(context) );
1816 if (GetLastError()) bSetDOSExtendedError = TRUE;
1819 case 0x68: /* "FFLUSH" - COMMIT FILE */
1820 case 0x6a: /* COMMIT FILE */
1821 TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
1822 bSetDOSExtendedError = (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ));
1825 case 0x69: /* DISK SERIAL NUMBER */
1826 switch (AL_reg(context))
1829 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
1830 INT21_DriveName(BL_reg(context)));
1831 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
1832 else SET_AX( context, 0 );
1836 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
1837 INT21_DriveName(BL_reg(context)));
1838 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
1839 else SET_AX( context, 1 );
1844 case 0x6C: /* Extended Open/Create*/
1845 TRACE("EXTENDED OPEN/CREATE %s\n",
1846 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
1847 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
1850 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
1851 if ((GetVersion()&0xC0000004)!=0xC0000004) {
1852 /* not supported on anything but Win95 */
1853 TRACE("LONG FILENAME functions supported only by win95\n");
1855 SET_AL( context, 0 );
1857 switch(AL_reg(context))
1859 case 0x39: /* Create directory */
1860 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
1861 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
1862 bSetDOSExtendedError = (!CreateDirectoryA(
1863 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1864 context->Edx ), NULL));
1865 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1866 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1867 * denied), while CreateDirectory return several ones. remap some of
1870 if (bSetDOSExtendedError) {
1871 switch (GetLastError()) {
1872 case ERROR_ALREADY_EXISTS:
1873 case ERROR_FILENAME_EXCED_RANGE:
1874 case ERROR_DISK_FULL:
1875 SetLastError(ERROR_ACCESS_DENIED);
1881 case 0x3a: /* Remove directory */
1882 TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
1883 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
1884 bSetDOSExtendedError = (!RemoveDirectoryA(
1885 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1888 case 0x43: /* Get/Set file attributes */
1889 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
1890 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
1891 switch (BL_reg(context))
1893 case 0x00: /* Get file attributes */
1894 TRACE("\tretrieve attributes\n");
1895 SET_CX( context, GetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1897 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1900 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
1901 bSetDOSExtendedError = (!SetFileAttributesA(
1902 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1904 CX_reg(context) ) );
1907 FIXME("Unimplemented long file name function:\n");
1908 INT_BARF( context, 0x21 );
1910 SET_AL( context, 0 );
1914 case 0x47: /* Get current directory */
1915 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
1916 INT21_DriveName(DL_reg(context)));
1917 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1920 case 0x4e: /* Find first file */
1921 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
1922 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
1923 /* FIXME: use attributes in CX */
1924 if ((SET_AX( context, FindFirstFile16(
1925 CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1926 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1928 == INVALID_HANDLE_VALUE16)
1929 bSetDOSExtendedError = TRUE;
1931 case 0x4f: /* Find next file */
1932 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
1934 if (!FindNextFile16( BX_reg(context),
1935 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1937 bSetDOSExtendedError = TRUE;
1941 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
1942 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
1943 DWORD filename_len, flags;
1945 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
1946 SET_AX( context, 0 );
1947 if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
1948 &flags, buffer, 8 ))
1950 INT_BARF( context, 0x21 );
1954 SET_BX( context, flags | 0x4000 ); /* support for LFN functions */
1955 SET_CX( context, filename_len );
1956 SET_DX( context, MAX_PATH ); /* FIXME: which len if DRIVE_SHORT_NAMES ? */
1959 case 0xa1: /* Find close */
1960 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
1962 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
1965 switch(CL_reg(context))
1967 case 0x01: /* Get short filename or path */
1968 if (!GetShortPathNameA
1969 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1971 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1973 bSetDOSExtendedError = TRUE;
1974 else SET_AX( context, 0 );
1976 case 0x02: /* Get canonical long filename or path */
1977 if (!GetFullPathNameA
1978 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1980 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1981 context->Edi),NULL))
1982 bSetDOSExtendedError = TRUE;
1983 else SET_AX( context, 0 );
1986 FIXME("Unimplemented long file name function:\n");
1987 INT_BARF( context, 0x21 );
1989 SET_AL( context, 0 );
1993 case 0x6c: /* Create or open file */
1994 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
1995 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
1996 /* translate Dos 7 action to Dos 6 action */
1997 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2000 case 0x3b: /* Change directory */
2001 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2002 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2003 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2009 SET_AL( context, GetLastError() );
2012 case 0x41: /* Delete file */
2013 TRACE("LONG FILENAME - DELETE FILE %s\n",
2014 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2015 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2020 SET_AL( context, GetLastError() );
2023 case 0x56: /* Move (rename) file */
2025 LPCSTR fn1 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2026 LPCSTR fn2 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2027 TRACE("LONG FILENAME - RENAME FILE %s to %s\n", fn1, fn2);
2028 if (!MoveFileA(fn1, fn2))
2031 SET_AL( context, GetLastError() );
2036 FIXME("Unimplemented long file name function:\n");
2037 INT_BARF( context, 0x21 );
2039 SET_AL( context, 0 );
2044 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2045 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2046 TRACE("windows95 function AX %04x\n",
2048 WARN(" returning unimplemented\n");
2050 SET_AL( context, 0 );
2053 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2054 TRACE("windows95 function AX %04x\n",
2057 switch (AL_reg(context))
2059 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2060 /* ES:DI points to word with length of data (should be 0x3d) */
2064 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2065 char root[] = "A:\\";
2067 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2069 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2071 /* validate passed-in buffer lengths */
2072 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
2074 WARN("Get Extended DPB: buffer lengths incorrect\n");
2075 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
2077 SET_AL( context, 0x18 ); /* bad buffer length */
2080 /* buffer checks out */
2081 buffer++; /* skip over length word now */
2082 if (FillInDrivePB( DX_reg(context) ) )
2084 edpb = (struct EDPB *)buffer;
2086 /* copy down the old-style DPB portion first */
2087 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2089 /* now fill in the extended entries */
2090 edpb->edpb_flags = 0;
2091 edpb->next_edpb = 0;
2092 edpb->free_cluster = edpb->free_cluster2 = 0;
2094 /* determine free disk space */
2095 *root += DOS_GET_DRIVE( DX_reg(context) );
2096 GetDiskFreeSpaceA( root, &cluster_sectors, §or_bytes,
2097 &free_clusters, &total_clusters );
2099 edpb->clusters_free = (free_clusters&0xffff);
2101 edpb->clusters_free_hi = free_clusters >> 16;
2102 edpb->mirroring_flags = 0;
2103 edpb->info_sector = 0xffff;
2104 edpb->spare_boot_sector = 0xffff;
2105 edpb->first_cluster = 0;
2106 edpb->max_cluster = total_clusters;
2107 edpb->fat_clusters = 32; /* made-up value */
2108 edpb->root_cluster = 0;
2110 RESET_CFLAG(context); /* clear carry */
2111 SET_AX( context, 0 );
2115 SET_AX( context, 0x00ff );
2121 case 0x03: /* Get Extended free space on drive */
2122 case 0x04: /* Set DPB for formatting */
2123 case 0x05: /* extended absolute disk read/write */
2124 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2126 SET_AL( context, 0 );
2132 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2133 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2137 INT_BARF( context, 0x21 );
2140 } /* END OF SWITCH */
2142 if( bSetDOSExtendedError ) /* set general error condition */
2144 SET_AX( context, GetLastError() );