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Prevent some segfaults in msrle32.
[wine/hacks.git] / msdos / int21.c
blobc2bae62e21d44e4d0e3a274e8c4d06b65e176f9b
1 /*
2 * DOS interrupt 21h handler
3 *
4 * Copyright 1993, 1994 Erik Bos
5 * Copyright 1996 Alexandre Julliard
6 * Copyright 1997 Andreas Mohr
7 * Copyright 1998 Uwe Bonnes
8 * Copyright 1998, 1999 Ove Kaaven
9 *
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.
14 *
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.
19 *
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
23 */
24
25 #include "config.h"
26 #include "wine/port.h"
27
28 #include <time.h>
29 #include <fcntl.h>
30 #include <errno.h>
31 #include <stdlib.h>
32 #include <stdio.h>
33 #ifdef HAVE_SYS_FILE_H
34 # include <sys/file.h>
35 #endif
36 #include <string.h>
37 #ifdef HAVE_SYS_TIME_H
38 # include <sys/time.h>
39 #endif
40 #include <sys/types.h>
41 #ifdef HAVE_UNISTD_H
42 # include <unistd.h>
43 #endif
44 #ifdef HAVE_UTIME_H
45 # include <utime.h>
46 #endif
47 #include <ctype.h>
48 #include "windef.h"
49 #include "winbase.h"
50 #include "winternl.h"
51 #include "wingdi.h"
52 #include "winuser.h" /* SW_NORMAL */
53 #include "wine/winbase16.h"
54 #include "winerror.h"
55 #include "drive.h"
56 #include "file.h"
57 #include "callback.h"
58 #include "msdos.h"
59 #include "miscemu.h"
60 #include "task.h"
61 #include "wine/unicode.h"
62 #include "wine/debug.h"
63
64 WINE_DEFAULT_DEBUG_CHANNEL(int21);
65 #if defined(__svr4__) || defined(_SCO_DS)
66 /* SVR4 DOESNT do locking the same way must implement properly */
67 #define LOCK_EX 0
68 #define LOCK_SH 1
69 #define LOCK_NB 8
70 #endif
71
72
73 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
74
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
78 * heap.
79 */
80 struct DPB
81 {
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) */
100 };
101
102 struct EDPB /* FAT32 extended Drive Parameter Block */
103 { /* from Ralf Brown's Interrupt List */
104 struct DPB dpb; /* first 24 bytes = original DPB */
105
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 */
122
123 };
124
125 WORD CodePage = 437;
126 DWORD dpbsegptr;
127
128 struct DosHeap {
129 BYTE InDosFlag;
130 BYTE mediaID;
131 BYTE biosdate[8];
132 struct DPB dpb;
133 BYTE DummyDBCSLeadTable[6];
134 };
135 static struct DosHeap *heap;
136 static WORD DosHeapHandle;
137
138 extern char TempDirectory[];
139
140 static void INT21_ReadConfigSys(void)
141 {
142 static int done;
143 if (!done) DOSCONF_ReadConfig();
144 done = 1;
145 }
146
147 static BOOL INT21_CreateHeap(void)
148 {
149 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
150 {
151 WARN("Out of memory\n");
152 return FALSE;
153 }
154 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
155 dpbsegptr = MAKESEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
156 heap->InDosFlag = 0;
157 strcpy(heap->biosdate, "01/01/80");
158 memset(heap->DummyDBCSLeadTable, 0, 6);
159 return TRUE;
160 }
161
162 static BYTE *GetCurrentDTA( CONTEXT86 *context )
163 {
164 TDB *pTask = TASK_GetCurrent();
165
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) );
169 }
170
171
172 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
173 /* limited == TRUE is used with INT 0x21/0x440d */
174 {
175 if (drive > 1) {
176 setword(data, 512);
177 data[2] = 2;
178 setword(&data[3], 0);
179 data[5] = 2;
180 setword(&data[6], 240);
181 setword(&data[8], 64000);
182 data[0x0a] = 0xf8;
183 setword(&data[0x0b], 40);
184 setword(&data[0x0d], 56);
185 setword(&data[0x0f], 2);
186 setword(&data[0x11], 0);
187 if (!limited) {
188 setword(&data[0x1f], 800);
189 data[0x21] = 5;
190 setword(&data[0x22], 1);
191 }
192 } else { /* 1.44mb */
193 setword(data, 512);
194 data[2] = 2;
195 setword(&data[3], 0);
196 data[5] = 2;
197 setword(&data[6], 240);
198 setword(&data[8], 2880);
199 data[0x0a] = 0xf8;
200 setword(&data[0x0b], 6);
201 setword(&data[0x0d], 18);
202 setword(&data[0x0f], 2);
203 setword(&data[0x11], 0);
204 if (!limited) {
205 setword(&data[0x1f], 80);
206 data[0x21] = 7;
207 setword(&data[0x22], 2);
208 }
209 }
210 }
211
212 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
213 {
214 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
215 char root[] = "A:\\";
216
217 *root += DOS_GET_DRIVE( DL_reg(context) );
218 if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_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 );
224 return 1;
225 }
226
227 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
228 {
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 );
234 return 1;
235 }
236
237 static int FillInDrivePB( int drive )
238 {
239 if(!DRIVE_IsValid(drive))
240 {
241 SetLastError( ERROR_INVALID_DRIVE );
242 return 0;
243 }
244 else if (heap || INT21_CreateHeap())
245 {
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
252 */
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;
267 heap->dpb.next = 0;
268 heap->dpb.free_search = 0;
269 heap->dpb.free_clusters = 0xFFFF; /* unknown */
270 return 1;
271 }
272
273 return 0;
274 }
275
276 static void GetDrivePB( CONTEXT86 *context, int drive )
277 {
278 if (FillInDrivePB( drive ))
279 {
280 SET_AL( context, 0x00 );
281 context->SegDs = SELECTOROF(dpbsegptr);
282 SET_BX( context, OFFSETOF(dpbsegptr) );
283 }
284 else
285 {
286 SET_AX( context, 0x00ff );
287 }
288 }
289
290
291 static void ioctlGetDeviceInfo( CONTEXT86 *context )
292 {
293 int curr_drive;
294 const DOS_DEVICE *dev;
295
296 TRACE("(%d)\n", BX_reg(context));
297
298 RESET_CFLAG(context);
299
300 /* DOS device ? */
301 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )))
302 {
303 SET_DX( context, dev->flags );
304 return;
305 }
306
307 /* it seems to be a file */
308 curr_drive = DRIVE_GetCurrentDrive();
309 SET_DX( context, 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0) );
310 /* no floppy */
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
317 */
318 }
319
320 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
321 {
322 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
323 int drive = DOS_GET_DRIVE( BL_reg(context) );
324
325 if (!DRIVE_IsValid(drive))
326 {
327 SetLastError( ERROR_FILE_NOT_FOUND );
328 return TRUE;
329 }
330
331 if (CH_reg(context) != 0x08)
332 {
333 INT_BARF( context, 0x21 );
334 return FALSE;
335 }
336
337 switch (CL_reg(context))
338 {
339 case 0x4a: /* lock logical volume */
340 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
341 break;
342
343 case 0x60: /* get device parameters */
344 /* used by w4wgrp's winfile */
345 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
346 dataptr[0] = 0x04;
347 dataptr[6] = 0; /* media type */
348 if (drive > 1)
349 {
350 dataptr[1] = 0x05; /* fixed disk */
351 setword(&dataptr[2], 0x01); /* non removable */
352 setword(&dataptr[4], 0x300); /* # of cylinders */
353 }
354 else
355 {
356 dataptr[1] = 0x07; /* block dev, floppy */
357 setword(&dataptr[2], 0x02); /* removable */
358 setword(&dataptr[4], 80); /* # of cylinders */
359 }
360 CreateBPB(drive, &dataptr[7], TRUE);
361 RESET_CFLAG(context);
362 break;
363
364 case 0x41: /* write logical device track */
365 case 0x61: /* read logical device track */
366 {
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);
375
376 raw_func = (CL_reg(context) == 0x41) ?
377 DRIVE_RawWrite : DRIVE_RawRead;
378
379 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
380 RESET_CFLAG(context);
381 else
382 {
383 SET_AX( context, 0x1e ); /* read fault */
384 SET_CFLAG(context);
385 }
386 }
387 break;
388 case 0x66:/* get disk serial number */
389 {
390 char label[12],fsname[9],path[4];
391 DWORD serial;
392
393 strcpy(path,"x:\\");path[0]=drive+'A';
394 GetVolumeInformationA(
395 path,label,12,&serial,NULL,NULL,fsname,9
396 );
397 *(WORD*)dataptr = 0;
398 memcpy(dataptr+2,&serial,4);
399 memcpy(dataptr+6,label ,11);
400 memcpy(dataptr+17,fsname,8);
401 }
402 break;
403
404 case 0x6a:
405 TRACE("logical volume %d unlocked.\n",drive);
406 break;
407
408 case 0x6f:
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 */
413 break;
414
415 case 0x72:
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 */
419 break;
420
421 default:
422 INT_BARF( context, 0x21 );
423 }
424 return FALSE;
425 }
426
427 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
428 {
429 char *filename =
430 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
431 char *fcb =
432 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
433 char *s;
434 WCHAR *buffer;
435 WCHAR fcbW[12];
436 INT buffer_len, len;
437
438 SET_AL( context, 0xff ); /* failed */
439
440 TRACE("filename: '%s'\n", filename);
441
442 s = filename;
443 len = 0;
444 while (*s)
445 {
446 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
447 {
448 s++;
449 len++;
450 }
451 else
452 break;
453 }
454
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);
458 buffer[len] = 0;
459 DOSFS_ToDosFCBFormat(buffer, fcbW);
460 HeapFree(GetProcessHeap(), 0, buffer);
461 WideCharToMultiByte(CP_OEMCP, 0, fcbW, 12, fcb + 1, 12, NULL, NULL);
462 *fcb = 0;
463 TRACE("FCB: '%s'\n", fcb + 1);
464
465 SET_AL( context, ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0 );
466
467 /* point DS:SI to first unparsed character */
468 SET_SI( context, context->Esi + (int)s - (int)filename );
469 }
470
471 static void INT21_GetSystemDate( CONTEXT86 *context )
472 {
473 SYSTEMTIME systime;
474 GetLocalTime( &systime );
475 SET_CX( context, systime.wYear );
476 SET_DX( context, (systime.wMonth << 8) | systime.wDay );
477 SET_AX( context, systime.wDayOfWeek );
478 }
479
480 static void INT21_GetSystemTime( CONTEXT86 *context )
481 {
482 SYSTEMTIME systime;
483 GetLocalTime( &systime );
484 SET_CX( context, (systime.wHour << 8) | systime.wMinute );
485 SET_DX( context, (systime.wSecond << 8) | (systime.wMilliseconds / 10) );
486 }
487
488 /* Many calls translate a drive argument like this:
489 drive number (00h = default, 01h = A:, etc)
490 */
491 static char drivestring[]="default";
492
493 char *INT21_DriveName(int drive)
494 {
495
496 if(drive >0)
497 {
498 drivestring[0]= (unsigned char)drive + '@';
499 drivestring[1]=':';
500 drivestring[2]=0;
501 }
502 return drivestring;
503 }
504 static BOOL INT21_CreateFile( CONTEXT86 *context )
505 {
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);
509 }
510
511 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
512 {
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 ));
518 }
519
520 static void OpenExistingFile( CONTEXT86 *context )
521 {
522 SET_AX( context, _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
523 AL_reg(context) ));
524 if (AX_reg(context) == (WORD)HFILE_ERROR16)
525 {
526 SET_AX( context, GetLastError() );
527 SET_CFLAG(context);
528 }
529 }
530
531 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
532 {
533 BOOL bExtendedError = FALSE;
534 BYTE action = DL_reg(context);
535
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);
541
542 if ((context->EFlags & 0x0001) == 0) /* File exists */
543 {
544 UINT16 uReturnCX = 0;
545
546 /* Now decide what do do */
547
548 if ((action & 0x07) == 0)
549 {
550 _lclose16( AX_reg(context) );
551 SET_AX( context, 0x0050 ); /*File exists*/
552 SET_CFLAG(context);
553 WARN("extended open/create: failed because file exists \n");
554 }
555 else if ((action & 0x07) == 2)
556 {
557 /* Truncate it, but first check if opened for write */
558 if ((BL_reg(context) & 0x0007)== 0)
559 {
560 _lclose16( AX_reg(context) );
561 WARN("extended open/create: failed, trunc on ro file\n");
562 SET_AX( context, 0x000C ); /*Access code invalid*/
563 SET_CFLAG(context);
564 }
565 else
566 {
567 TRACE("extended open/create: Closing before truncate\n");
568 if (_lclose16( AX_reg(context) ))
569 {
570 WARN("extended open/create: close before trunc failed\n");
571 SET_AX( context, 0x0019 ); /*Seek Error*/
572 SET_CX( context, 0 );
573 SET_CFLAG(context);
574 }
575 /* Shuffle arguments to call CreateFile */
576
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);
582
583 if (context->EFlags & 0x0001) /*no file open, flags set */
584 {
585 WARN("extended open/create: trunc failed\n");
586 return bExtendedError;
587 }
588 uReturnCX = 0x3;
589 }
590 }
591 else uReturnCX = 0x1;
592
593 SET_CX( context, uReturnCX );
594 }
595 else /* file does not exist */
596 {
597 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
598 if ((action & 0xF0)== 0)
599 {
600 SET_CX( context, 0 );
601 SET_CFLAG(context);
602 WARN("extended open/create: failed, file dosen't exist\n");
603 }
604 else
605 {
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 */
613 {
614 WARN("extended open/create: create failed\n");
615 return bExtendedError;
616 }
617 SET_CX( context, 2 );
618 }
619 }
620
621 return bExtendedError;
622 }
623
624
625 static BOOL INT21_ChangeDir( CONTEXT86 *context )
626 {
627 int drive;
628 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
629 WCHAR dirnameW[MAX_PATH];
630
631 TRACE("changedir %s\n", dirname);
632 if (dirname[0] && (dirname[1] == ':'))
633 {
634 drive = toupper(dirname[0]) - 'A';
635 dirname += 2;
636 }
637 else drive = DRIVE_GetCurrentDrive();
638 MultiByteToWideChar(CP_OEMCP, 0, dirname, -1, dirnameW, MAX_PATH);
639 return DRIVE_Chdir( drive, dirnameW );
640 }
641
642
643 static int INT21_FindFirst( CONTEXT86 *context )
644 {
645 char *p;
646 const char *path;
647 DOS_FULL_NAME full_name;
648 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
649 WCHAR pathW[MAX_PATH];
650 WCHAR maskW[12];
651
652 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
653 MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH);
654
655 dta->unixPath = NULL;
656 if (!DOSFS_GetFullName( pathW, FALSE, &full_name ))
657 {
658 SET_AX( context, GetLastError() );
659 SET_CFLAG(context);
660 return 0;
661 }
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, '/' );
665 *p = '\0';
666
667 MultiByteToWideChar(CP_OEMCP, 0, p + 1, -1, pathW, MAX_PATH);
668
669 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
670 * (doesn't matter as it is set below anyway)
671 */
672 if (!DOSFS_ToDosFCBFormat( pathW, maskW ))
673 {
674 HeapFree( GetProcessHeap(), 0, dta->unixPath );
675 dta->unixPath = NULL;
676 SetLastError( ERROR_FILE_NOT_FOUND );
677 SET_AX( context, ERROR_FILE_NOT_FOUND );
678 SET_CFLAG(context);
679 return 0;
680 }
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();
684 dta->count = 0;
685 dta->search_attr = CL_reg(context);
686 return 1;
687 }
688
689
690 static int INT21_FindNext( CONTEXT86 *context )
691 {
692 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
693 WIN32_FIND_DATAA entry;
694 int count;
695
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 )))
699 {
700 HeapFree( GetProcessHeap(), 0, dta->unixPath );
701 dta->unixPath = NULL;
702 return 0;
703 }
704 if ((int)dta->count + count > 0xffff)
705 {
706 WARN("Too many directory entries in %s\n", dta->unixPath );
707 HeapFree( GetProcessHeap(), 0, dta->unixPath );
708 dta->unixPath = NULL;
709 return 0;
710 }
711 dta->count += count;
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;
723 }
724 return 1;
725 }
726
727
728 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
729 {
730 static int counter = 0;
731 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
732 char *p = name + strlen(name);
733
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++ = '\\';
737
738 for (;;)
739 {
740 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
741 counter = (counter + 1) % 1000;
742
743 if ((SET_AX( context, _lcreat16_uniq( name, 0 ))) != (WORD)HFILE_ERROR16)
744 {
745 TRACE("created %s\n", name );
746 return TRUE;
747 }
748 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
749 }
750 }
751
752
753 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
754 {
755 int drive = DOS_GET_DRIVE( DL_reg(context) );
756 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
757
758 if (!DRIVE_IsValid(drive))
759 {
760 SetLastError( ERROR_INVALID_DRIVE );
761 return FALSE;
762 }
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 */
766 return TRUE;
767 }
768
769
770 static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
771 {
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 );
776 }
777 else
778 {
779 SET_AX( context, 0x1 ); /* error */
780 SET_CFLAG(context);
781 }
782 }
783
784
785 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
786 {
787 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
788 int drive = DOS_GET_DRIVE( BL_reg(context) );
789
790 if (!DRIVE_IsValid(drive))
791 {
792 SetLastError( ERROR_INVALID_DRIVE );
793 return 0;
794 }
795
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);
800 return 1;
801 }
802
803
804 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
805 {
806 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
807 int drive = DOS_GET_DRIVE( BL_reg(context) );
808
809 if (!DRIVE_IsValid(drive))
810 {
811 SetLastError( ERROR_INVALID_DRIVE );
812 return 0;
813 }
814
815 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
816 return 1;
817 }
818
819
820 /* microsoft's programmers should be shot for using CP/M style int21
821 calls in Windows for Workgroup's winfile.exe */
822
823 static int INT21_FindFirstFCB( CONTEXT86 *context )
824 {
825 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
826 FINDFILE_FCB *pFCB;
827 LPCSTR root, cwd;
828 int drive;
829
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 );
842 pFCB->count = 0;
843 return 1;
844 }
845
846
847 static int INT21_FindNextFCB( CONTEXT86 *context )
848 {
849 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
850 FINDFILE_FCB *pFCB;
851 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
852 WIN32_FIND_DATAA entry;
853 BYTE attr;
854 int count;
855
856 if (*fcb == 0xff) /* extended FCB ? */
857 {
858 attr = fcb[6];
859 pFCB = (FINDFILE_FCB *)(fcb + 7);
860 }
861 else
862 {
863 attr = 0;
864 pFCB = (FINDFILE_FCB *)fcb;
865 }
866
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 )))
871 {
872 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
873 pFCB->unixPath = NULL;
874 return 0;
875 }
876 pFCB->count += count;
877
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;
882 ((BYTE *)pResult)++;
883 }
884 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
885 ((BYTE *)pResult)++;
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 );
892
893 /* Convert file name to FCB format */
894
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] = '.';
899 else
900 {
901 char *p = strrchr( entry.cAlternateFileName, '.' );
902 if (p && p[1] && (p != entry.cAlternateFileName))
903 {
904 memcpy( pResult->filename, entry.cAlternateFileName,
905 min( (p - entry.cAlternateFileName), 8 ) );
906 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
907 }
908 else
909 memcpy( pResult->filename, entry.cAlternateFileName,
910 min( strlen(entry.cAlternateFileName), 8 ) );
911 }
912 return 1;
913 }
914
915
916 static void DeleteFileFCB( CONTEXT86 *context )
917 {
918 FIXME("(%p): stub\n", context);
919 }
920
921 static void RenameFileFCB( CONTEXT86 *context )
922 {
923 FIXME("(%p): stub\n", context);
924 }
925
926
927
928 static void fLock( CONTEXT86 * context )
929 {
930
931 switch ( AX_reg(context) & 0xff )
932 {
933 case 0x00: /* LOCK */
934 TRACE("lock handle %d offset %ld length %ld\n",
935 BX_reg(context),
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() );
942 SET_CFLAG(context);
943 }
944 break;
945
946 case 0x01: /* UNLOCK */
947 TRACE("unlock handle %d offset %ld length %ld\n",
948 BX_reg(context),
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() );
955 SET_CFLAG(context);
956 }
957 return;
958 default:
959 SET_AX( context, 0x0001 );
960 SET_CFLAG(context);
961 return;
962 }
963 }
964
965 static BOOL
966 INT21_networkfunc (CONTEXT86 *context)
967 {
968 switch (AL_reg(context)) {
969 case 0x00: /* Get machine name. */
970 {
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))
974 {
975 WARN("failed!\n");
976 SetLastError( ER_NoNetwork );
977 return TRUE;
978 } else {
979 int len = strlen (dst);
980 while (len < 15)
981 dst[len++] = ' ';
982 dst[15] = 0;
983 SET_CH( context, 1 ); /* Valid */
984 SET_CL( context, 1 ); /* NETbios number??? */
985 TRACE("returning %s\n", debugstr_an (dst, 16));
986 return FALSE;
987 }
988 }
989
990 default:
991 SetLastError( ER_NoNetwork );
992 return TRUE;
993 }
994 }
995
996
997 static void ASPI_DOS_HandleInt( CONTEXT86 *context )
998 {
999 if (!Dosvm.ASPIHandler && !DPMI_LoadDosSystem())
1000 {
1001 ERR("could not setup ASPI handler\n");
1002 return;
1003 }
1004 Dosvm.ASPIHandler( context );
1005 }
1006
1007 /***********************************************************************
1008 * INT21_GetExtendedError
1009 */
1010 static void INT21_GetExtendedError( CONTEXT86 *context )
1011 {
1012 BYTE class, action, locus;
1013 WORD error = GetLastError();
1014
1015 switch(error)
1016 {
1017 case ERROR_SUCCESS:
1018 class = action = locus = 0;
1019 break;
1020 case ERROR_DIR_NOT_EMPTY:
1021 class = EC_Exists;
1022 action = SA_Ignore;
1023 locus = EL_Disk;
1024 break;
1025 case ERROR_ACCESS_DENIED:
1026 class = EC_AccessDenied;
1027 action = SA_Abort;
1028 locus = EL_Disk;
1029 break;
1030 case ERROR_CANNOT_MAKE:
1031 class = EC_AccessDenied;
1032 action = SA_Abort;
1033 locus = EL_Unknown;
1034 break;
1035 case ERROR_DISK_FULL:
1036 case ERROR_HANDLE_DISK_FULL:
1037 class = EC_MediaError;
1038 action = SA_Abort;
1039 locus = EL_Disk;
1040 break;
1041 case ERROR_FILE_EXISTS:
1042 case ERROR_ALREADY_EXISTS:
1043 class = EC_Exists;
1044 action = SA_Abort;
1045 locus = EL_Disk;
1046 break;
1047 case ERROR_FILE_NOT_FOUND:
1048 class = EC_NotFound;
1049 action = SA_Abort;
1050 locus = EL_Disk;
1051 break;
1052 case ER_GeneralFailure:
1053 class = EC_SystemFailure;
1054 action = SA_Abort;
1055 locus = EL_Unknown;
1056 break;
1057 case ERROR_INVALID_DRIVE:
1058 class = EC_MediaError;
1059 action = SA_Abort;
1060 locus = EL_Disk;
1061 break;
1062 case ERROR_INVALID_HANDLE:
1063 class = EC_ProgramError;
1064 action = SA_Abort;
1065 locus = EL_Disk;
1066 break;
1067 case ERROR_LOCK_VIOLATION:
1068 class = EC_AccessDenied;
1069 action = SA_Abort;
1070 locus = EL_Disk;
1071 break;
1072 case ERROR_NO_MORE_FILES:
1073 class = EC_MediaError;
1074 action = SA_Abort;
1075 locus = EL_Disk;
1076 break;
1077 case ER_NoNetwork:
1078 class = EC_NotFound;
1079 action = SA_Abort;
1080 locus = EL_Network;
1081 break;
1082 case ERROR_NOT_ENOUGH_MEMORY:
1083 class = EC_OutOfResource;
1084 action = SA_Abort;
1085 locus = EL_Memory;
1086 break;
1087 case ERROR_PATH_NOT_FOUND:
1088 class = EC_NotFound;
1089 action = SA_Abort;
1090 locus = EL_Disk;
1091 break;
1092 case ERROR_SEEK:
1093 class = EC_NotFound;
1094 action = SA_Ignore;
1095 locus = EL_Disk;
1096 break;
1097 case ERROR_SHARING_VIOLATION:
1098 class = EC_Temporary;
1099 action = SA_Retry;
1100 locus = EL_Disk;
1101 break;
1102 case ERROR_TOO_MANY_OPEN_FILES:
1103 class = EC_ProgramError;
1104 action = SA_Abort;
1105 locus = EL_Disk;
1106 break;
1107 default:
1108 FIXME("Unknown error %d\n", error );
1109 class = EC_SystemFailure;
1110 action = SA_Abort;
1111 locus = EL_Unknown;
1112 break;
1113 }
1114 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1115 error, class, action, locus );
1116 SET_AX( context, error );
1117 SET_BH( context, class );
1118 SET_BL( context, action );
1119 SET_CH( context, locus );
1120 }
1121
1122 /***********************************************************************
1123 * DOS3Call (KERNEL.102)
1124 * INT_Int21Handler (WPROCS.133)
1125 */
1126 void WINAPI DOS3Call( CONTEXT86 *context )
1127 {
1128 BOOL bSetDOSExtendedError = FALSE;
1129
1130
1131 TRACE("AX=%04x BX=%04x CX=%04x DX=%04x "
1132 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1133 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1134 SI_reg(context), DI_reg(context),
1135 (WORD)context->SegDs, (WORD)context->SegEs,
1136 context->EFlags );
1137
1138
1139 if (AH_reg(context) == 0x59) /* Get extended error info */
1140 {
1141 INT21_GetExtendedError( context );
1142 return;
1143 }
1144
1145 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1146 {
1147 TRACE("FLUSH BUFFER AND READ STANDARD INPUT\n");
1148 /* no flush here yet */
1149 SET_AH( context, AL_reg(context) );
1150 }
1151
1152 if (AH_reg(context)>=0x2f) {
1153 /* extended error is used by (at least) functions 0x2f to 0x62 */
1154 SetLastError(0);
1155 }
1156 RESET_CFLAG(context); /* Not sure if this is a good idea */
1157
1158 switch(AH_reg(context))
1159 {
1160 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1161 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1162 case 0x03: /* READ CHARACTER FROM STDAUX */
1163 case 0x04: /* WRITE CHARACTER TO STDAUX */
1164 case 0x05: /* WRITE CHARACTER TO PRINTER */
1165 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1166 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1167 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1168 case 0x0b: /* GET STDIN STATUS */
1169 case 0x0f: /* OPEN FILE USING FCB */
1170 case 0x10: /* CLOSE FILE USING FCB */
1171 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1172 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1173 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1174 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1175 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1176 case 0x23: /* GET FILE SIZE FOR FCB */
1177 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1178 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1179 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1180 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1181 case 0x4d: /* GET RETURN CODE */
1182 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1183 INT_BARF( context, 0x21 );
1184 break;
1185
1186 case 0x00: /* TERMINATE PROGRAM */
1187 TRACE("TERMINATE PROGRAM\n");
1188 ExitThread( 0 );
1189 break;
1190
1191 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1192 TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1193 context->SegDs,DX_reg(context) );
1194 {
1195 LPSTR data = CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
1196 LPSTR p = data;
1197 /* do NOT use strchr() to calculate the string length,
1198 as '\0' is valid string content, too !
1199 Maybe we should check for non-'$' strings, but DOS doesn't. */
1200 while (*p != '$') p++;
1201 _hwrite16( 1, data, (int)p - (int)data);
1202 SET_AL( context, '$' ); /* yes, '$' (0x24) gets returned in AL */
1203 }
1204 break;
1205
1206 case 0x0a: /* BUFFERED INPUT */
1207 {
1208 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1209 context->Edx ));
1210 int res;
1211
1212 TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
1213 if (buffer[1])
1214 TRACE("Handle old chars in buffer!\n");
1215 res=_lread16( 0, buffer+2,buffer[0]);
1216 buffer[1]=res;
1217 if(buffer[res+1] == '\n')
1218 buffer[res+1] = '\r';
1219 break;
1220 }
1221
1222 case 0x2e: /* SET VERIFY FLAG */
1223 TRACE("SET VERIFY FLAG ignored\n");
1224 /* we cannot change the behaviour anyway, so just ignore it */
1225 break;
1226
1227 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1228 case 0x1d:
1229 case 0x1e:
1230 case 0x20:
1231 case 0x6b: /* NULL FUNCTION */
1232 SET_AL( context, 0 );
1233 break;
1234
1235 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1236 fLock(context);
1237 break;
1238
1239 case 0x0d: /* DISK BUFFER FLUSH */
1240 TRACE("DISK BUFFER FLUSH ignored\n");
1241 RESET_CFLAG(context); /* dos 6+ only */
1242 break;
1243
1244 case 0x0e: /* SELECT DEFAULT DRIVE */
1245 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1246 DRIVE_SetCurrentDrive( DL_reg(context) );
1247 SET_AL( context, MAX_DOS_DRIVES );
1248 break;
1249
1250 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1251 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
1252 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1253 if (!INT21_FindFirstFCB(context))
1254 {
1255 SET_AL( context, 0xff );
1256 break;
1257 }
1258 /* else fall through */
1259
1260 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1261 SET_AL( context, INT21_FindNextFCB(context) ? 0x00 : 0xff );
1262 break;
1263
1264 case 0x13: /* DELETE FILE USING FCB */
1265 DeleteFileFCB(context);
1266 break;
1267
1268 case 0x17: /* RENAME FILE USING FCB */
1269 RenameFileFCB(context);
1270 break;
1271
1272 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1273 SET_AL( context, DRIVE_GetCurrentDrive() );
1274 break;
1275
1276 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1277 {
1278 TDB *pTask = TASK_GetCurrent();
1279 pTask->dta = MAKESEGPTR(context->SegDs,DX_reg(context));
1280 TRACE("Set DTA: %08lx\n", pTask->dta);
1281 }
1282 break;
1283
1284 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1285 SET_DL( context, 0 );
1286 if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff );
1287 break;
1288
1289 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1290 if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff );
1291 break;
1292
1293 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1294 GetDrivePB(context, DRIVE_GetCurrentDrive());
1295 break;
1296
1297 case 0x25: /* SET INTERRUPT VECTOR */
1298 INT_SetPMHandler( AL_reg(context), (FARPROC16)MAKESEGPTR( context->SegDs, DX_reg(context)));
1299 break;
1300
1301 case 0x29: /* PARSE FILENAME INTO FCB */
1302 INT21_ParseFileNameIntoFCB(context);
1303 break;
1304
1305 case 0x2a: /* GET SYSTEM DATE */
1306 INT21_GetSystemDate(context);
1307 break;
1308
1309 case 0x2b: /* SET SYSTEM DATE */
1310 FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
1311 DL_reg(context), DH_reg(context), CX_reg(context) );
1312 SET_AL( context, 0 ); /* Let's pretend we succeeded */
1313 break;
1314
1315 case 0x2c: /* GET SYSTEM TIME */
1316 INT21_GetSystemTime(context);
1317 break;
1318
1319 case 0x2d: /* SET SYSTEM TIME */
1320 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1321 CH_reg(context), CL_reg(context),
1322 DH_reg(context), DL_reg(context) );
1323 SET_AL( context, 0 ); /* Let's pretend we succeeded */
1324 break;
1325
1326 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1327 TRACE("GET DISK TRANSFER AREA ADDRESS\n");
1328 {
1329 TDB *pTask = TASK_GetCurrent();
1330 context->SegEs = SELECTOROF( pTask->dta );
1331 SET_BX( context, OFFSETOF( pTask->dta ) );
1332 }
1333 break;
1334
1335 case 0x30: /* GET DOS VERSION */
1336 TRACE("GET DOS VERSION %s requested\n",
1337 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1338 SET_AX( context, (HIWORD(GetVersion16()) >> 8) | (HIWORD(GetVersion16()) << 8) );
1339 #if 0
1340 SET_AH( context, 0x7 );
1341 SET_AL( context, 0xA );
1342 #endif
1343
1344 SET_BX( context, 0x00FF ); /* 0x123456 is Wine's serial # */
1345 SET_CX( context, 0x0000 );
1346 break;
1347
1348 case 0x31: /* TERMINATE AND STAY RESIDENT */
1349 FIXME("TERMINATE AND STAY RESIDENT stub\n");
1350 break;
1351
1352 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1353 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1354 INT21_DriveName( DL_reg(context)));
1355 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1356 break;
1357
1358 case 0x33: /* MULTIPLEXED */
1359 switch (AL_reg(context))
1360 {
1361 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1362 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
1363 INT21_ReadConfigSys();
1364 SET_DL( context, DOSCONF_config.brk_flag );
1365 break;
1366
1367 case 0x01: /* SET EXTENDED BREAK STATE */
1368 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
1369 INT21_ReadConfigSys();
1370 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1371 break;
1372
1373 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1374 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1375 INT21_ReadConfigSys();
1376 /* ugly coding in order to stay reentrant */
1377 if (DL_reg(context))
1378 {
1379 SET_DL( context, DOSCONF_config.brk_flag );
1380 DOSCONF_config.brk_flag = 1;
1381 }
1382 else
1383 {
1384 SET_DL( context, DOSCONF_config.brk_flag );
1385 DOSCONF_config.brk_flag = 0;
1386 }
1387 break;
1388
1389 case 0x05: /* GET BOOT DRIVE */
1390 TRACE("GET BOOT DRIVE\n");
1391 SET_DL( context, 3 );
1392 /* c: is Wine's bootdrive (a: is 1)*/
1393 break;
1394
1395 case 0x06: /* GET TRUE VERSION NUMBER */
1396 TRACE("GET TRUE VERSION NUMBER\n");
1397 SET_BX( context, (HIWORD(GetVersion16() >> 8)) | (HIWORD(GetVersion16() << 8)) );
1398 SET_DX( context, 0x00 );
1399 break;
1400
1401 default:
1402 INT_BARF( context, 0x21 );
1403 break;
1404 }
1405 break;
1406
1407 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1408 TRACE("GET ADDRESS OF INDOS FLAG\n");
1409 if (!heap) INT21_CreateHeap();
1410 context->SegEs = DosHeapHandle;
1411 SET_BX( context, (int)&heap->InDosFlag - (int)heap );
1412 break;
1413
1414 case 0x35: /* GET INTERRUPT VECTOR */
1415 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1416 {
1417 FARPROC16 addr = INT_GetPMHandler( AL_reg(context) );
1418 context->SegEs = SELECTOROF(addr);
1419 SET_BX( context, OFFSETOF(addr) );
1420 }
1421 break;
1422
1423 case 0x36: /* GET FREE DISK SPACE */
1424 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1425 INT21_DriveName( DL_reg(context)));
1426 if (!INT21_GetFreeDiskSpace(context)) SET_AX( context, 0xffff );
1427 break;
1428
1429 case 0x37:
1430 {
1431 unsigned char switchchar='/';
1432 switch (AL_reg(context))
1433 {
1434 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1435 TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
1436 SET_AL( context, 0x00 ); /* success*/
1437 SET_DL( context, switchchar );
1438 break;
1439 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1440 TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
1441 switchchar = DL_reg(context);
1442 SET_AL( context, 0x00 ); /* success*/
1443 break;
1444 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1445 INT_BARF( context, 0x21 );
1446 break;
1447 }
1448 break;
1449 }
1450
1451 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1452 TRACE("GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1453 AL_reg(context));
1454 SET_AX( context, 0x02 ); /* no country support available */
1455 SET_CFLAG(context);
1456 break;
1457
1458 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1459 TRACE("MKDIR %s\n",
1460 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1461 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1462 context->Edx ), NULL));
1463 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1464 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1465 * denied), while CreateDirectory return several ones. remap some of
1466 * them. -Marcus
1467 */
1468 if (bSetDOSExtendedError) {
1469 switch (GetLastError()) {
1470 case ERROR_ALREADY_EXISTS:
1471 case ERROR_FILENAME_EXCED_RANGE:
1472 case ERROR_DISK_FULL:
1473 SetLastError(ERROR_ACCESS_DENIED);
1474 break;
1475 default: break;
1476 }
1477 }
1478 break;
1479
1480 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1481 TRACE("RMDIR %s\n",
1482 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1483 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1484 context->Edx )));
1485 break;
1486
1487 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1488 TRACE("CHDIR %s\n",
1489 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1490 bSetDOSExtendedError = !INT21_ChangeDir(context);
1491 break;
1492
1493 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1494 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1495 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1496 bSetDOSExtendedError = INT21_CreateFile( context );
1497 break;
1498
1499 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1500 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1501 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1502 OpenExistingFile(context);
1503 break;
1504
1505 case 0x3e: /* "CLOSE" - CLOSE FILE */
1506 TRACE("CLOSE handle %d\n",BX_reg(context));
1507 bSetDOSExtendedError = ((SET_AX( context, _lclose16( BX_reg(context) )) != 0) );
1508 break;
1509
1510 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1511 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1512 context->SegDs,DX_reg(context),CX_reg(context) );
1513 {
1514 LONG result;
1515 if (ISV86(context))
1516 result = _hread16( BX_reg(context),
1517 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1518 context->Edx ),
1519 CX_reg(context) );
1520 else
1521 result = WIN16_hread( BX_reg(context),
1522 MAKESEGPTR( context->SegDs, context->Edx ),
1523 CX_reg(context) );
1524 if (result == -1) bSetDOSExtendedError = TRUE;
1525 else SET_AX( context, (WORD)result );
1526 }
1527 break;
1528
1529 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1530 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1531 context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
1532 {
1533 LONG result = _hwrite16( BX_reg(context),
1534 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1535 context->Edx ),
1536 CX_reg(context) );
1537 if (result == -1) bSetDOSExtendedError = TRUE;
1538 else SET_AX( context, (WORD)result );
1539 }
1540 break;
1541
1542 case 0x41: /* "UNLINK" - DELETE FILE */
1543 TRACE("UNLINK %s\n",
1544 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1545 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1546 context->Edx )));
1547 break;
1548
1549 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1550 TRACE("LSEEK handle %d offset %ld from %s\n",
1551 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1552 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1553 "current file position":"end of file");
1554 {
1555 LONG status = _llseek16( BX_reg(context),
1556 MAKELONG(DX_reg(context),CX_reg(context)),
1557 AL_reg(context) );
1558 if (status == -1) bSetDOSExtendedError = TRUE;
1559 else
1560 {
1561 SET_AX( context, LOWORD(status) );
1562 SET_DX( context, HIWORD(status) );
1563 }
1564 }
1565 break;
1566
1567 case 0x43: /* FILE ATTRIBUTES */
1568 switch (AL_reg(context))
1569 {
1570 case 0x00:
1571 TRACE("GET FILE ATTRIBUTES for %s\n",
1572 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1573 SET_AX( context, GetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1574 context->Edx)));
1575 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1576 else SET_CX( context, AX_reg(context) );
1577 break;
1578
1579 case 0x01:
1580 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1581 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1582 bSetDOSExtendedError =
1583 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1584 context->Edx),
1585 CX_reg(context) ));
1586 break;
1587 case 0x02:
1588 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1589 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1590 }
1591 break;
1592
1593 case 0x44: /* IOCTL */
1594 switch (AL_reg(context))
1595 {
1596 case 0x00:
1597 ioctlGetDeviceInfo(context);
1598 break;
1599
1600 case 0x01:
1601 break;
1602 case 0x02:{
1603 const DOS_DEVICE *dev;
1604 static const WCHAR scsimgrW[] = {'S','C','S','I','M','G','R','$',0};
1605 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )) &&
1606 !strcmpiW( dev->name, scsimgrW ))
1607 {
1608 ASPI_DOS_HandleInt(context);
1609 }
1610 break;
1611 }
1612 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1613 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1614 int drive = DOS_GET_DRIVE(BL_reg(context));
1615
1616 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1617 /* for (i=0;i<CX_reg(context);i++)
1618 fprintf(stdnimp,"%02x ",dataptr[i]);
1619 fprintf(stdnimp,"\n");*/
1620 SET_AX( context, context->Ecx );
1621 break;
1622 }
1623 case 0x08: /* Check if drive is removable. */
1624 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1625 INT21_DriveName( BL_reg(context)));
1626 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1627 {
1628 case DRIVE_UNKNOWN:
1629 SetLastError( ERROR_INVALID_DRIVE );
1630 SET_AX( context, ERROR_INVALID_DRIVE );
1631 SET_CFLAG(context);
1632 break;
1633 case DRIVE_REMOVABLE:
1634 SET_AX( context, 0 ); /* removable */
1635 break;
1636 default:
1637 SET_AX( context, 1 ); /* not removable */
1638 break;
1639 }
1640 break;
1641
1642 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1643 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1644 INT21_DriveName( BL_reg(context)));
1645 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1646 {
1647 case DRIVE_UNKNOWN:
1648 SetLastError( ERROR_INVALID_DRIVE );
1649 SET_AX( context, ERROR_INVALID_DRIVE );
1650 SET_CFLAG(context);
1651 break;
1652 case DRIVE_REMOTE:
1653 SET_DX( context, (1<<9) | (1<<12) ); /* remote */
1654 break;
1655 default:
1656 SET_DX( context, 0 ); /* FIXME: use driver attr here */
1657 break;
1658 }
1659 break;
1660
1661 case 0x0a: /* check if handle (BX) is remote */
1662 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1663 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1664 * not set on close
1665 */
1666 SET_DX( context, 0 );
1667 break;
1668
1669 case 0x0d:
1670 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1671 INT21_DriveName( BL_reg(context)));
1672 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1673 break;
1674
1675 case 0x0e: /* get logical drive mapping */
1676 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1677 INT21_DriveName( BL_reg(context)));
1678 SET_AL( context, 0 ); /* drive has no mapping - FIXME: may be wrong*/
1679 break;
1680
1681 case 0x0F: /* Set logical drive mapping */
1682 {
1683 int drive;
1684 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1685 INT21_DriveName( BL_reg(context)));
1686 drive = DOS_GET_DRIVE ( BL_reg(context) );
1687 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1688 {
1689 SET_CFLAG(context);
1690 SET_AX( context, 0x000F ); /* invalid drive */
1691 }
1692 break;
1693 }
1694
1695 case 0xe0: /* Sun PC-NFS API */
1696 /* not installed */
1697 break;
1698
1699 case 0x52: /* DR-DOS version */
1700 /* This is not DR-DOS */
1701
1702 TRACE("GET DR-DOS VERSION requested\n");
1703
1704 SET_AX( context, 0x0001 ); /* Invalid function */
1705 SET_CFLAG(context); /* Error */
1706 SetLastError( ERROR_INVALID_FUNCTION );
1707 break;
1708
1709 default:
1710 INT_BARF( context, 0x21 );
1711 break;
1712 }
1713 break;
1714
1715 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1716 {
1717 HANDLE handle;
1718 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1719 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1720 DosFileHandleToWin32Handle(BX_reg(context)),
1721 GetCurrentProcess(), &handle,
1722 0, TRUE, DUPLICATE_SAME_ACCESS )))
1723 SET_AX( context, HFILE_ERROR16 );
1724 else
1725 SET_AX( context, Win32HandleToDosFileHandle(handle) );
1726 break;
1727 }
1728
1729 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1730 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1731 BX_reg(context),CX_reg(context));
1732 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1733 break;
1734
1735 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1736 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1737 INT21_DriveName( DL_reg(context)));
1738 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1739 break;
1740
1741 case 0x48: /* ALLOCATE MEMORY */
1742 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1743 {
1744 LPVOID *mem;
1745 if (ISV86(context))
1746 {
1747 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1748 if (mem)
1749 SET_AX( context, DOSMEM_MapLinearToDos(mem)>>4 );
1750 }
1751 else
1752 {
1753 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1754 if (mem)
1755 SET_AX( context, (DWORD)mem&0xffff );
1756 }
1757 if (!mem)
1758 {
1759 SET_CFLAG(context);
1760 SET_AX( context, 0x0008 ); /* insufficient memory */
1761 SET_BX( context, DOSMEM_Available()>>4 );
1762 }
1763 }
1764 break;
1765
1766 case 0x49: /* FREE MEMORY */
1767 TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
1768 {
1769 BOOL ret;
1770 if (ISV86(context))
1771 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
1772 else
1773 {
1774 ret = !GlobalDOSFree16(context->SegEs);
1775 /* If we don't reset ES_reg, we will fail in the relay code */
1776 context->SegEs=ret;
1777 }
1778 if (!ret)
1779 {
1780 TRACE("FREE MEMORY failed\n");
1781 SET_CFLAG(context);
1782 SET_AX( context, 0x0009 ); /* memory block address invalid */
1783 }
1784 }
1785 break;
1786
1787 case 0x4a: /* RESIZE MEMORY BLOCK */
1788 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
1789 if (!ISV86(context))
1790 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1791 {
1792 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
1793 BX_reg(context)<<4,NULL);
1794 if (mem)
1795 SET_AX( context, DOSMEM_MapLinearToDos(mem)>>4 );
1796 else {
1797 SET_CFLAG(context);
1798 SET_AX( context, 0x0008 ); /* insufficient memory */
1799 SET_BX( context, DOSMEM_Available()>>4 ); /* not quite right */
1800 }
1801 }
1802 break;
1803
1804 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1805 TRACE("EXEC %s\n", (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
1806 SET_AX( context, WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ),
1807 SW_NORMAL ));
1808 if (AX_reg(context) < 32) SET_CFLAG(context);
1809 break;
1810
1811 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1812 TRACE("EXIT with return code %d\n",AL_reg(context));
1813 ExitThread( AL_reg(context) );
1814 break;
1815
1816 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1817 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1818 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1819 if (!INT21_FindFirst(context)) break;
1820 /* fall through */
1821
1822 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1823 TRACE("FINDNEXT\n");
1824 if (!INT21_FindNext(context))
1825 {
1826 SetLastError( ERROR_NO_MORE_FILES );
1827 SET_AX( context, ERROR_NO_MORE_FILES );
1828 SET_CFLAG(context);
1829 }
1830 else SET_AX( context, 0 ); /* OK */
1831 break;
1832 case 0x51: /* GET PSP ADDRESS */
1833 TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1834 /* FIXME: should we return the original DOS PSP upon */
1835 /* Windows startup ? */
1836 SET_BX( context, GetCurrentPDB16() );
1837 break;
1838 case 0x62: /* GET PSP ADDRESS */
1839 /* FIXME: should we return the original DOS PSP upon */
1840 /* Windows startup ? */
1841 SET_BX( context, GetCurrentPDB16() );
1842 break;
1843
1844 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1845 TRACE("SYSVARS - GET LIST OF LISTS\n");
1846 #if 0
1847 {
1848 context->SegEs = LOWORD(DOS_LOLSeg);
1849 SET_BX( context, FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB) );
1850 }
1851 #endif
1852 FIXME("LOLSeg broken for now\n");
1853 context->SegEs = 0;
1854 SET_BX( context, 0 );
1855 break;
1856
1857 case 0x54: /* Get Verify Flag */
1858 TRACE("Get Verify Flag - Not Supported\n");
1859 SET_AL( context, 0x00 ); /* pretend we can tell. 00h = off 01h = on */
1860 break;
1861
1862 case 0x56: /* "RENAME" - RENAME FILE */
1863 TRACE("RENAME %s to %s\n",
1864 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1865 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi));
1866 bSetDOSExtendedError =
1867 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1868 CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi)));
1869 break;
1870
1871 case 0x57: /* FILE DATE AND TIME */
1872 switch (AL_reg(context))
1873 {
1874 case 0x00: /* Get */
1875 {
1876 FILETIME filetime;
1877 TRACE("GET FILE DATE AND TIME for handle %d\n",
1878 BX_reg(context));
1879 if (!GetFileTime( DosFileHandleToWin32Handle(BX_reg(context)), NULL, NULL, &filetime ))
1880 bSetDOSExtendedError = TRUE;
1881 else
1882 {
1883 WORD date, time;
1884 FileTimeToDosDateTime( &filetime, &date, &time );
1885 SET_DX( context, date );
1886 SET_CX( context, time );
1887 }
1888 }
1889 break;
1890
1891 case 0x01: /* Set */
1892 {
1893 FILETIME filetime;
1894 TRACE("SET FILE DATE AND TIME for handle %d\n",
1895 BX_reg(context));
1896 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1897 &filetime );
1898 bSetDOSExtendedError =
1899 (!SetFileTime( DosFileHandleToWin32Handle(BX_reg(context)),
1900 NULL, NULL, &filetime ));
1901 }
1902 break;
1903 }
1904 break;
1905
1906 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1907 TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1908 AL_reg(context));
1909 switch (AL_reg(context))
1910 {
1911 case 0x00:
1912 SET_AX( context, 1 );
1913 break;
1914 case 0x02:
1915 SET_AX( context, 0 );
1916 break;
1917 case 0x01:
1918 case 0x03:
1919 break;
1920 }
1921 RESET_CFLAG(context);
1922 break;
1923
1924 case 0x5a: /* CREATE TEMPORARY FILE */
1925 TRACE("CREATE TEMPORARY FILE\n");
1926 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1927 break;
1928
1929 case 0x5b: /* CREATE NEW FILE */
1930 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1931 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1932 bSetDOSExtendedError = ((SET_AX( context,
1933 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1934 CX_reg(context) ))) == (WORD)HFILE_ERROR16);
1935 break;
1936
1937 case 0x5d: /* NETWORK */
1938 FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
1939 /* Fix the following while you're at it. */
1940 SetLastError( ER_NoNetwork );
1941 bSetDOSExtendedError = TRUE;
1942 break;
1943
1944 case 0x5e:
1945 bSetDOSExtendedError = INT21_networkfunc (context);
1946 break;
1947
1948 case 0x5f: /* NETWORK */
1949 switch (AL_reg(context))
1950 {
1951 case 0x07: /* ENABLE DRIVE */
1952 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1953 if (!DRIVE_Enable( DL_reg(context) ))
1954 {
1955 SetLastError( ERROR_INVALID_DRIVE );
1956 bSetDOSExtendedError = TRUE;
1957 }
1958 break;
1959
1960 case 0x08: /* DISABLE DRIVE */
1961 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1962 if (!DRIVE_Disable( DL_reg(context) ))
1963 {
1964 SetLastError( ERROR_INVALID_DRIVE );
1965 bSetDOSExtendedError = TRUE;
1966 }
1967 break;
1968
1969 default:
1970 /* network software not installed */
1971 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
1972 SetLastError( ER_NoNetwork );
1973 bSetDOSExtendedError = TRUE;
1974 break;
1975 }
1976 break;
1977
1978 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1979 TRACE("TRUENAME %s\n",
1980 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
1981 {
1982 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1983 context->Esi), 128,
1984 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1985 context->Edi),NULL))
1986 bSetDOSExtendedError = TRUE;
1987 else SET_AX( context, 0 );
1988 }
1989 break;
1990
1991 case 0x61: /* UNUSED */
1992 case 0x63: /* misc. language support */
1993 switch (AL_reg(context)) {
1994 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
1995 INT21_GetDBCSLeadTable(context);
1996 break;
1997 }
1998 break;
1999 case 0x64: /* OS/2 DOS BOX */
2000 INT_BARF( context, 0x21 );
2001 SET_CFLAG(context);
2002 break;
2003
2004 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2005 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2006 TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2007 BX_reg(context), DX_reg(context));
2008 switch (AL_reg(context)) {
2009 case 0x01:
2010 TRACE("\tget general internationalization info\n");
2011 dataptr[0] = 0x1;
2012 *(WORD*)(dataptr+1) = 41;
2013 *(WORD*)(dataptr+3) = GetSystemDefaultLangID();
2014 *(WORD*)(dataptr+5) = CodePage;
2015 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2016 break;
2017 case 0x06:
2018 TRACE("\tget pointer to collating sequence table\n");
2019 dataptr[0] = 0x06;
2020 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2021 SET_CX( context, 258 );/*FIXME: size of table?*/
2022 break;
2023 case 0x20:
2024 TRACE("\tConvert char to uppercase\n");
2025 SET_DL( context, toupper(DL_reg(context)) );
2026 break;
2027 case 0x21:
2028 TRACE("\tconvert string to uppercase with length\n");
2029 {
2030 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
2031 WORD len = CX_reg(context);
2032 while (len--) { *ptr = toupper(*ptr); ptr++; }
2033 }
2034 break;
2035 case 0x22:
2036 TRACE("\tConvert ASCIIZ string to uppercase\n");
2037 _strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx) );
2038 break;
2039 default:
2040 TRACE("\tunimplemented function %d\n",AL_reg(context));
2041 INT_BARF( context, 0x21 );
2042 SET_CFLAG(context);
2043 break;
2044 }
2045 break;
2046 }
2047 case 0x66: /* GLOBAL CODE PAGE TABLE */
2048 switch (AL_reg(context))
2049 {
2050 case 0x01:
2051 TRACE("GET GLOBAL CODE PAGE TABLE\n");
2052 SET_BX( context, CodePage );
2053 SET_DX( context, CodePage );
2054 RESET_CFLAG(context);
2055 break;
2056 case 0x02:
2057 TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2058 BX_reg(context),DX_reg(context));
2059 CodePage = BX_reg(context);
2060 RESET_CFLAG(context);
2061 break;
2062 }
2063 break;
2064
2065 case 0x67: /* SET HANDLE COUNT */
2066 TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
2067 SetHandleCount16( BX_reg(context) );
2068 if (GetLastError()) bSetDOSExtendedError = TRUE;
2069 break;
2070
2071 case 0x68: /* "FFLUSH" - COMMIT FILE */
2072 case 0x6a: /* COMMIT FILE */
2073 TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
2074 bSetDOSExtendedError = (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ));
2075 break;
2076
2077 case 0x69: /* DISK SERIAL NUMBER */
2078 switch (AL_reg(context))
2079 {
2080 case 0x00:
2081 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
2082 INT21_DriveName(BL_reg(context)));
2083 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2084 else SET_AX( context, 0 );
2085 break;
2086
2087 case 0x01:
2088 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
2089 INT21_DriveName(BL_reg(context)));
2090 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2091 else SET_AX( context, 1 );
2092 break;
2093 }
2094 break;
2095
2096 case 0x6C: /* Extended Open/Create*/
2097 TRACE("EXTENDED OPEN/CREATE %s\n",
2098 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
2099 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2100 break;
2101
2102 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2103 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2104 /* not supported on anything but Win95 */
2105 TRACE("LONG FILENAME functions supported only by win95\n");
2106 SET_CFLAG(context);
2107 SET_AL( context, 0 );
2108 } else
2109 switch(AL_reg(context))
2110 {
2111 case 0x39: /* Create directory */
2112 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
2113 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2114 bSetDOSExtendedError = (!CreateDirectoryA(
2115 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2116 context->Edx ), NULL));
2117 /* FIXME: CreateDirectory's LastErrors will clash with the ones
2118 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
2119 * denied), while CreateDirectory return several ones. remap some of
2120 * them. -Marcus
2121 */
2122 if (bSetDOSExtendedError) {
2123 switch (GetLastError()) {
2124 case ERROR_ALREADY_EXISTS:
2125 case ERROR_FILENAME_EXCED_RANGE:
2126 case ERROR_DISK_FULL:
2127 SetLastError(ERROR_ACCESS_DENIED);
2128 break;
2129 default: break;
2130 }
2131 }
2132 break;
2133 case 0x3a: /* Remove directory */
2134 TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
2135 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2136 bSetDOSExtendedError = (!RemoveDirectoryA(
2137 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2138 context->Edx )));
2139 break;
2140 case 0x43: /* Get/Set file attributes */
2141 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2142 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2143 switch (BL_reg(context))
2144 {
2145 case 0x00: /* Get file attributes */
2146 TRACE("\tretrieve attributes\n");
2147 SET_CX( context, GetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2148 context->Edx)));
2149 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2150 break;
2151 case 0x01:
2152 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
2153 bSetDOSExtendedError = (!SetFileAttributesA(
2154 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2155 context->Edx),
2156 CX_reg(context) ) );
2157 break;
2158 default:
2159 FIXME("Unimplemented long file name function:\n");
2160 INT_BARF( context, 0x21 );
2161 SET_CFLAG(context);
2162 SET_AL( context, 0 );
2163 break;
2164 }
2165 break;
2166 case 0x47: /* Get current directory */
2167 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2168 INT21_DriveName(DL_reg(context)));
2169 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2170 break;
2171
2172 case 0x4e: /* Find first file */
2173 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2174 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2175 /* FIXME: use attributes in CX */
2176 if ((SET_AX( context, FindFirstFile16(
2177 CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
2178 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2179 context->Edi))))
2180 == INVALID_HANDLE_VALUE16)
2181 bSetDOSExtendedError = TRUE;
2182 break;
2183 case 0x4f: /* Find next file */
2184 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2185 BX_reg(context));
2186 if (!FindNextFile16( BX_reg(context),
2187 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2188 context->Edi)))
2189 bSetDOSExtendedError = TRUE;
2190 break;
2191 case 0xa0:
2192 {
2193 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
2194 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2195 DWORD filename_len, flags;
2196
2197 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
2198 SET_AX( context, 0 );
2199 if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
2200 &flags, buffer, 8 ))
2201 {
2202 INT_BARF( context, 0x21 );
2203 SET_CFLAG(context);
2204 break;
2205 }
2206 SET_BX( context, flags | 0x4000 ); /* support for LFN functions */
2207 SET_CX( context, filename_len );
2208 SET_DX( context, MAX_PATH ); /* FIXME: which len if DRIVE_SHORT_NAMES ? */
2209 }
2210 break;
2211 case 0xa1: /* Find close */
2212 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
2213 BX_reg(context));
2214 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2215 break;
2216 case 0x60:
2217 switch(CL_reg(context))
2218 {
2219 case 0x01: /* Get short filename or path */
2220 if (!GetShortPathNameA
2221 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2222 context->Esi),
2223 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2224 context->Edi), 67))
2225 bSetDOSExtendedError = TRUE;
2226 else SET_AX( context, 0 );
2227 break;
2228 case 0x02: /* Get canonical long filename or path */
2229 if (!GetFullPathNameA
2230 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2231 context->Esi), 128,
2232 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2233 context->Edi),NULL))
2234 bSetDOSExtendedError = TRUE;
2235 else SET_AX( context, 0 );
2236 break;
2237 default:
2238 FIXME("Unimplemented long file name function:\n");
2239 INT_BARF( context, 0x21 );
2240 SET_CFLAG(context);
2241 SET_AL( context, 0 );
2242 break;
2243 }
2244 break;
2245 case 0x6c: /* Create or open file */
2246 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
2247 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
2248 /* translate Dos 7 action to Dos 6 action */
2249 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2250 break;
2251
2252 case 0x3b: /* Change directory */
2253 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2254 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2255 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2256 context->SegDs,
2257 context->Edx
2258 ))
2259 ) {
2260 SET_CFLAG(context);
2261 SET_AL( context, GetLastError() );
2262 }
2263 break;
2264 case 0x41: /* Delete file */
2265 TRACE("LONG FILENAME - DELETE FILE %s\n",
2266 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2267 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2268 context->SegDs,
2269 context->Edx)
2270 )) {
2271 SET_CFLAG(context);
2272 SET_AL( context, GetLastError() );
2273 }
2274 break;
2275 case 0x56: /* Move (rename) file */
2276 {
2277 LPCSTR fn1 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2278 LPCSTR fn2 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2279 TRACE("LONG FILENAME - RENAME FILE %s to %s\n", fn1, fn2);
2280 if (!MoveFileA(fn1, fn2))
2281 {
2282 SET_CFLAG(context);
2283 SET_AL( context, GetLastError() );
2284 }
2285 }
2286 break;
2287 default:
2288 FIXME("Unimplemented long file name function:\n");
2289 INT_BARF( context, 0x21 );
2290 SET_CFLAG(context);
2291 SET_AL( context, 0 );
2292 break;
2293 }
2294 break;
2295
2296 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2297 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2298 TRACE("windows95 function AX %04x\n",
2299 AX_reg(context));
2300 WARN(" returning unimplemented\n");
2301 SET_CFLAG(context);
2302 SET_AL( context, 0 );
2303 break;
2304
2305 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2306 TRACE("windows95 function AX %04x\n",
2307 AX_reg(context));
2308
2309 switch (AL_reg(context))
2310 {
2311 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2312 /* ES:DI points to word with length of data (should be 0x3d) */
2313 {
2314 WORD *buffer;
2315 struct EDPB *edpb;
2316 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2317 char root[] = "A:\\";
2318
2319 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2320
2321 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2322
2323 /* validate passed-in buffer lengths */
2324 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
2325 {
2326 WARN("Get Extended DPB: buffer lengths incorrect\n");
2327 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
2328 SET_CFLAG(context);
2329 SET_AL( context, 0x18 ); /* bad buffer length */
2330 }
2331
2332 /* buffer checks out */
2333 buffer++; /* skip over length word now */
2334 if (FillInDrivePB( DX_reg(context) ) )
2335 {
2336 edpb = (struct EDPB *)buffer;
2337
2338 /* copy down the old-style DPB portion first */
2339 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2340
2341 /* now fill in the extended entries */
2342 edpb->edpb_flags = 0;
2343 edpb->next_edpb = 0;
2344 edpb->free_cluster = edpb->free_cluster2 = 0;
2345
2346 /* determine free disk space */
2347 *root += DOS_GET_DRIVE( DX_reg(context) );
2348 GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
2349 &free_clusters, &total_clusters );
2350
2351 edpb->clusters_free = (free_clusters&0xffff);
2352
2353 edpb->clusters_free_hi = free_clusters >> 16;
2354 edpb->mirroring_flags = 0;
2355 edpb->info_sector = 0xffff;
2356 edpb->spare_boot_sector = 0xffff;
2357 edpb->first_cluster = 0;
2358 edpb->max_cluster = total_clusters;
2359 edpb->fat_clusters = 32; /* made-up value */
2360 edpb->root_cluster = 0;
2361
2362 RESET_CFLAG(context); /* clear carry */
2363 SET_AX( context, 0 );
2364 }
2365 else
2366 {
2367 SET_AX( context, 0x00ff );
2368 SET_CFLAG(context);
2369 }
2370 }
2371 break;
2372
2373 case 0x03: /* Get Extended free space on drive */
2374 case 0x04: /* Set DPB for formatting */
2375 case 0x05: /* extended absolute disk read/write */
2376 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2377 SET_CFLAG(context);
2378 SET_AL( context, 0 );
2379 break;
2380 }
2381
2382 break;
2383
2384
2385 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2386 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2387 break;
2388
2389 default:
2390 INT_BARF( context, 0x21 );
2391 break;
2392
2393 } /* END OF SWITCH */
2394
2395 if( bSetDOSExtendedError ) /* set general error condition */
2396 {
2397 SET_AX( context, GetLastError() );
2398 SET_CFLAG(context);
2399 }
2400
2401 if ((context->EFlags & 0x0001))
2402 TRACE("failed, error %ld\n", GetLastError() );
2403
2404 TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2405 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2406 AX_reg(context), BX_reg(context), CX_reg(context),
2407 DX_reg(context), SI_reg(context), DI_reg(context),
2408 (WORD)context->SegDs, (WORD)context->SegEs,
2409 context->EFlags);
2410 }
2411
2412 /***********************************************************************
2413 * GetSetKernelDOSProc (KERNEL.311)
2414 */
2415 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2416 {
2417 FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);
2418 return NULL;
2419 }
useful hacks and other patches not (yet) suitable for mainline