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Fixed bug introduced in WIN_FindWindow.
[wine/multimedia.git] / msdos / int21.c
blob71f7c0cfa7e857961a8d519a9b416d61039ff9a3
1 /*
2 * DOS interrupt 21h handler
3 */
4
5 #include <time.h>
6 #include <fcntl.h>
7 #include <errno.h>
8 #include <stdlib.h>
9 #ifdef HAVE_SYS_FILE_H
10 # include <sys/file.h>
11 #endif
12 #include <string.h>
13 #include <sys/stat.h>
14 #include <sys/time.h>
15 #include <sys/types.h>
16 #include <unistd.h>
17 #include <utime.h>
18 #include <ctype.h>
19 #include "windef.h"
20 #include "winbase.h"
21 #include "winuser.h" /* SW_NORMAL */
22 #include "wine/winbase16.h"
23 #include "winerror.h"
24 #include "drive.h"
25 #include "file.h"
26 #include "heap.h"
27 #include "msdos.h"
28 #include "ldt.h"
29 #include "task.h"
30 #include "options.h"
31 #include "miscemu.h"
32 #include "dosexe.h" /* for the MZ_SUPPORTED define */
33 #include "module.h"
34 #include "debug.h"
35 #include "console.h"
36 #if defined(__svr4__) || defined(_SCO_DS)
37 /* SVR4 DOESNT do locking the same way must implement properly */
38 #define LOCK_EX 0
39 #define LOCK_SH 1
40 #define LOCK_NB 8
41 #endif
42
43
44 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
45
46 /* Define the drive parameter block, as used by int21/1F
47 * and int21/32. This table can be accessed through the
48 * global 'dpb' pointer, which points into the local dos
49 * heap.
50 */
51 struct DPB
52 {
53 BYTE drive_num; /* 0=A, etc. */
54 BYTE unit_num; /* Drive's unit number (?) */
55 WORD sector_size; /* Sector size in bytes */
56 BYTE high_sector; /* Highest sector in a cluster */
57 BYTE shift; /* Shift count (?) */
58 WORD reserved; /* Number of reserved sectors at start */
59 BYTE num_FAT; /* Number of FATs */
60 WORD dir_entries; /* Number of root dir entries */
61 WORD first_data; /* First data sector */
62 WORD high_cluster; /* Highest cluster number */
63 WORD sectors_in_FAT; /* Number of sectors per FAT */
64 WORD start_dir; /* Starting sector of first dir */
65 DWORD driver_head; /* Address of device driver header (?) */
66 BYTE media_ID; /* Media ID */
67 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
68 DWORD next; /* Pointer to next DPB in list */
69 WORD free_search; /* Free cluster search start */
70 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
71 };
72
73 WORD CodePage = 437;
74 DWORD dpbsegptr;
75
76 struct DosHeap {
77 BYTE InDosFlag;
78 BYTE mediaID;
79 BYTE biosdate[8];
80 struct DPB dpb;
81 BYTE DummyDBCSLeadTable[6];
82 };
83 static struct DosHeap *heap;
84 static WORD DosHeapHandle;
85
86 WORD sharing_retries = 3; /* number of retries at sharing violation */
87 WORD sharing_pause = 1; /* pause between retries */
88
89 extern char TempDirectory[];
90
91 static BOOL INT21_CreateHeap(void)
92 {
93 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
94 {
95 WARN(int21, "Out of memory\n");
96 return FALSE;
97 }
98 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
99 dpbsegptr = PTR_SEG_OFF_TO_SEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
100 heap->InDosFlag = 0;
101 strcpy(heap->biosdate, "01/01/80");
102 memset(heap->DummyDBCSLeadTable, 0, 6);
103 return TRUE;
104 }
105
106 static BYTE *GetCurrentDTA( CONTEXT *context )
107 {
108 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
109
110 /* FIXME: This assumes DTA was set correctly! */
111 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
112 (DWORD)OFFSETOF(pTask->dta) );
113 }
114
115
116 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
117 /* limited == TRUE is used with INT 0x21/0x440d */
118 {
119 if (drive > 1) {
120 setword(data, 512);
121 data[2] = 2;
122 setword(&data[3], 0);
123 data[5] = 2;
124 setword(&data[6], 240);
125 setword(&data[8], 64000);
126 data[0x0a] = 0xf8;
127 setword(&data[0x0b], 40);
128 setword(&data[0x0d], 56);
129 setword(&data[0x0f], 2);
130 setword(&data[0x11], 0);
131 if (!limited) {
132 setword(&data[0x1f], 800);
133 data[0x21] = 5;
134 setword(&data[0x22], 1);
135 }
136 } else { /* 1.44mb */
137 setword(data, 512);
138 data[2] = 2;
139 setword(&data[3], 0);
140 data[5] = 2;
141 setword(&data[6], 240);
142 setword(&data[8], 2880);
143 data[0x0a] = 0xf8;
144 setword(&data[0x0b], 6);
145 setword(&data[0x0d], 18);
146 setword(&data[0x0f], 2);
147 setword(&data[0x11], 0);
148 if (!limited) {
149 setword(&data[0x1f], 80);
150 data[0x21] = 7;
151 setword(&data[0x22], 2);
152 }
153 }
154 }
155
156 static int INT21_GetFreeDiskSpace( CONTEXT *context )
157 {
158 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
159 char root[] = "A:\\";
160
161 *root += DOS_GET_DRIVE( DL_reg(context) );
162 if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
163 &free_clusters, &total_clusters )) return 0;
164 AX_reg(context) = cluster_sectors;
165 BX_reg(context) = free_clusters;
166 CX_reg(context) = sector_bytes;
167 DX_reg(context) = total_clusters;
168 return 1;
169 }
170
171 static int INT21_GetDriveAllocInfo( CONTEXT *context )
172 {
173 if (!INT21_GetFreeDiskSpace( context )) return 0;
174 if (!heap && !INT21_CreateHeap()) return 0;
175 heap->mediaID = 0xf0;
176 DS_reg(context) = DosHeapHandle;
177 BX_reg(context) = (int)&heap->mediaID - (int)heap;
178 return 1;
179 }
180
181 static void GetDrivePB( CONTEXT *context, int drive )
182 {
183 if(!DRIVE_IsValid(drive))
184 {
185 SetLastError( ERROR_INVALID_DRIVE );
186 AX_reg(context) = 0x00ff;
187 }
188 else if (heap || INT21_CreateHeap())
189 {
190 FIXME(int21, "GetDrivePB not fully implemented.\n");
191
192 /* FIXME: I have no idea what a lot of this information should
193 * say or whether it even really matters since we're not allowing
194 * direct block access. However, some programs seem to depend on
195 * getting at least _something_ back from here. The 'next' pointer
196 * does worry me, though. Should we have a complete table of
197 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
198 */
199 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
200 heap->dpb.sector_size = 512;
201 heap->dpb.high_sector = 1;
202 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
203 heap->dpb.reserved = 0;
204 heap->dpb.num_FAT = 1;
205 heap->dpb.dir_entries = 2;
206 heap->dpb.first_data = 2;
207 heap->dpb.high_cluster = 64000;
208 heap->dpb.sectors_in_FAT = 1;
209 heap->dpb.start_dir = 1;
210 heap->dpb.driver_head = 0;
211 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
212 heap->dpb.access_flag = 0;
213 heap->dpb.next = 0;
214 heap->dpb.free_search = 0;
215 heap->dpb.free_clusters = 0xFFFF; /* unknown */
216
217 AL_reg(context) = 0x00;
218 DS_reg(context) = SELECTOROF(dpbsegptr);
219 BX_reg(context) = OFFSETOF(dpbsegptr);
220 }
221 }
222
223
224 static void ioctlGetDeviceInfo( CONTEXT *context )
225 {
226 int curr_drive;
227 const DOS_DEVICE *dev;
228
229 TRACE(int21, "(%d)\n", BX_reg(context));
230
231 RESET_CFLAG(context);
232
233 /* DOS device ? */
234 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )))
235 {
236 DX_reg(context) = dev->flags;
237 return;
238 }
239
240 /* it seems to be a file */
241 curr_drive = DRIVE_GetCurrentDrive();
242 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
243 /* no floppy */
244 /* bits 0-5 are current drive
245 * bit 6 - file has NOT been written..FIXME: correct?
246 * bit 8 - generate int24 if no diskspace on write/ read past end of file
247 * bit 11 - media not removable
248 * bit 14 - don't set file date/time on closing
249 * bit 15 - file is remote
250 */
251 }
252
253 static BOOL ioctlGenericBlkDevReq( CONTEXT *context )
254 {
255 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
256 int drive = DOS_GET_DRIVE( BL_reg(context) );
257
258 if (!DRIVE_IsValid(drive))
259 {
260 SetLastError( ERROR_FILE_NOT_FOUND );
261 return TRUE;
262 }
263
264 if (CH_reg(context) != 0x08)
265 {
266 INT_BARF( context, 0x21 );
267 return FALSE;
268 }
269
270 switch (CL_reg(context))
271 {
272 case 0x4a: /* lock logical volume */
273 TRACE(int21,"lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
274 break;
275
276 case 0x60: /* get device parameters */
277 /* used by w4wgrp's winfile */
278 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
279 dataptr[0] = 0x04;
280 dataptr[6] = 0; /* media type */
281 if (drive > 1)
282 {
283 dataptr[1] = 0x05; /* fixed disk */
284 setword(&dataptr[2], 0x01); /* non removable */
285 setword(&dataptr[4], 0x300); /* # of cylinders */
286 }
287 else
288 {
289 dataptr[1] = 0x07; /* block dev, floppy */
290 setword(&dataptr[2], 0x02); /* removable */
291 setword(&dataptr[4], 80); /* # of cylinders */
292 }
293 CreateBPB(drive, &dataptr[7], TRUE);
294 RESET_CFLAG(context);
295 break;
296
297 case 0x41: /* write logical device track */
298 case 0x61: /* read logical device track */
299 {
300 BYTE drive = BL_reg(context) ?
301 BL_reg(context) : DRIVE_GetCurrentDrive();
302 WORD head = *(WORD *)dataptr+1;
303 WORD cyl = *(WORD *)dataptr+3;
304 WORD sect = *(WORD *)dataptr+5;
305 WORD nrsect = *(WORD *)dataptr+7;
306 BYTE *data = (BYTE *)dataptr+9;
307 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
308
309 raw_func = (CL_reg(context) == 0x41) ?
310 DRIVE_RawWrite : DRIVE_RawRead;
311
312 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
313 RESET_CFLAG(context);
314 else
315 {
316 AX_reg(context) = 0x1e; /* read fault */
317 SET_CFLAG(context);
318 }
319 }
320 break;
321 case 0x66:/* get disk serial number */
322 {
323 char label[12],fsname[9],path[4];
324 DWORD serial;
325
326 strcpy(path,"x:\\");path[0]=drive+'A';
327 GetVolumeInformationA(
328 path,label,12,&serial,NULL,NULL,fsname,9
329 );
330 *(WORD*)dataptr = 0;
331 memcpy(dataptr+2,&serial,4);
332 memcpy(dataptr+6,label ,11);
333 memcpy(dataptr+17,fsname,8);
334 }
335 break;
336
337 case 0x6a:
338 TRACE(int21,"logical volume %d unlocked.\n",drive);
339 break;
340
341 case 0x6f:
342 memset(dataptr+1, '\0', dataptr[0]-1);
343 dataptr[1] = dataptr[0];
344 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
345 dataptr[3] = 0xFF; /* no physical drive */
346 break;
347
348 default:
349 INT_BARF( context, 0x21 );
350 }
351 return FALSE;
352 }
353
354 static void INT21_ParseFileNameIntoFCB( CONTEXT *context )
355 {
356 char *filename =
357 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
358 char *fcb =
359 CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context) );
360 char *buffer, *s, *d;
361
362 AL_reg(context) = 0xff; /* failed */
363
364 TRACE(int21, "filename: '%s'\n", filename);
365
366 buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
367
368 s = filename;
369 d = buffer;
370 while (*s)
371 {
372 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
373 *d++ = *s++;
374 else
375 break;
376 }
377
378 *d = '\0';
379 DOSFS_ToDosFCBFormat(buffer, fcb + 1);
380 *fcb = 0;
381 TRACE(int21, "FCB: '%s'\n", ((CHAR *)fcb + 1));
382
383 HeapFree( GetProcessHeap(), 0, buffer);
384
385 AL_reg(context) =
386 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
387
388 /* point DS:SI to first unparsed character */
389 SI_reg(context) += (int)s - (int)filename;
390 }
391
392 static void INT21_GetSystemDate( CONTEXT *context )
393 {
394 SYSTEMTIME systime;
395 GetLocalTime( &systime );
396 CX_reg(context) = systime.wYear;
397 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
398 AX_reg(context) = systime.wDayOfWeek;
399 }
400
401 static void INT21_GetSystemTime( CONTEXT *context )
402 {
403 SYSTEMTIME systime;
404 GetLocalTime( &systime );
405 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
406 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
407 }
408
409 /* Many calls translate a drive argument like this:
410 drive number (00h = default, 01h = A:, etc)
411 */
412 static char drivestring[]="default";
413
414 char *INT21_DriveName(int drive)
415 {
416
417 if(drive >0)
418 {
419 drivestring[0]= (unsigned char)drive + '@';
420 drivestring[1]=':';
421 drivestring[2]=0;
422 }
423 return drivestring;
424 }
425 static BOOL INT21_CreateFile( CONTEXT *context )
426 {
427 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
428 EDX_reg(context) ), CX_reg(context) );
429 return (AX_reg(context) == (WORD)HFILE_ERROR16);
430 }
431
432
433 static void OpenExistingFile( CONTEXT *context )
434 {
435 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
436 AL_reg(context) );
437 if (AX_reg(context) == (WORD)HFILE_ERROR16)
438 {
439 AX_reg(context) = GetLastError();
440 SET_CFLAG(context);
441 }
442 }
443
444 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT *context )
445 {
446 BOOL bExtendedError = FALSE;
447 BYTE action = DL_reg(context);
448
449 /* Shuffle arguments to call OpenExistingFile */
450 AL_reg(context) = BL_reg(context);
451 DX_reg(context) = SI_reg(context);
452 /* BX,CX and DX should be preserved */
453 OpenExistingFile(context);
454
455 if ((EFL_reg(context) & 0x0001) == 0) /* File exists */
456 {
457 UINT16 uReturnCX = 0;
458
459 /* Now decide what do do */
460
461 if ((action & 0x07) == 0)
462 {
463 _lclose16( AX_reg(context) );
464 AX_reg(context) = 0x0050; /*File exists*/
465 SET_CFLAG(context);
466 WARN(int21, "extended open/create: failed because file exists \n");
467 }
468 else if ((action & 0x07) == 2)
469 {
470 /* Truncate it, but first check if opened for write */
471 if ((BL_reg(context) & 0x0007)== 0)
472 {
473 _lclose16( AX_reg(context) );
474 WARN(int21, "extended open/create: failed, trunc on ro file\n");
475 AX_reg(context) = 0x000C; /*Access code invalid*/
476 SET_CFLAG(context);
477 }
478 else
479 {
480 TRACE(int21, "extended open/create: Closing before truncate\n");
481 if (_lclose16( AX_reg(context) ))
482 {
483 WARN(int21, "extended open/create: close before trunc failed\n");
484 AX_reg(context) = 0x0019; /*Seek Error*/
485 CX_reg(context) = 0;
486 SET_CFLAG(context);
487 }
488 /* Shuffle arguments to call CreateFile */
489
490 TRACE(int21, "extended open/create: Truncating\n");
491 AL_reg(context) = BL_reg(context);
492 /* CX is still the same */
493 DX_reg(context) = SI_reg(context);
494 bExtendedError = INT21_CreateFile(context);
495
496 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
497 {
498 WARN(int21, "extended open/create: trunc failed\n");
499 return bExtendedError;
500 }
501 uReturnCX = 0x3;
502 }
503 }
504 else uReturnCX = 0x1;
505
506 CX_reg(context) = uReturnCX;
507 }
508 else /* file does not exist */
509 {
510 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
511 if ((action & 0xF0)== 0)
512 {
513 CX_reg(context) = 0;
514 SET_CFLAG(context);
515 WARN(int21, "extended open/create: failed, file dosen't exist\n");
516 }
517 else
518 {
519 /* Shuffle arguments to call CreateFile */
520 TRACE(int21, "extended open/create: Creating\n");
521 AL_reg(context) = BL_reg(context);
522 /* CX should still be the same */
523 DX_reg(context) = SI_reg(context);
524 bExtendedError = INT21_CreateFile(context);
525 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
526 {
527 WARN(int21, "extended open/create: create failed\n");
528 return bExtendedError;
529 }
530 CX_reg(context) = 2;
531 }
532 }
533
534 return bExtendedError;
535 }
536
537
538 static BOOL INT21_ChangeDir( CONTEXT *context )
539 {
540 int drive;
541 char *dirname = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));
542
543 TRACE(int21,"changedir %s\n", dirname);
544 if (dirname[0] && (dirname[1] == ':'))
545 {
546 drive = toupper(dirname[0]) - 'A';
547 dirname += 2;
548 }
549 else drive = DRIVE_GetCurrentDrive();
550 return DRIVE_Chdir( drive, dirname );
551 }
552
553
554 static int INT21_FindFirst( CONTEXT *context )
555 {
556 char *p;
557 const char *path;
558 DOS_FULL_NAME full_name;
559 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
560
561 path = (const char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
562 dta->unixPath = NULL;
563 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
564 {
565 AX_reg(context) = GetLastError();
566 SET_CFLAG(context);
567 return 0;
568 }
569 dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
570 p = strrchr( dta->unixPath, '/' );
571 *p = '\0';
572
573 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
574 * (doesn't matter as it is set below anyway)
575 */
576 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
577 {
578 HeapFree( GetProcessHeap(), 0, dta->unixPath );
579 dta->unixPath = NULL;
580 SetLastError( ERROR_FILE_NOT_FOUND );
581 AX_reg(context) = ERROR_FILE_NOT_FOUND;
582 SET_CFLAG(context);
583 return 0;
584 }
585 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
586 : DRIVE_GetCurrentDrive();
587 dta->count = 0;
588 dta->search_attr = CL_reg(context);
589 return 1;
590 }
591
592
593 static int INT21_FindNext( CONTEXT *context )
594 {
595 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
596 WIN32_FIND_DATAA entry;
597 int count;
598
599 if (!dta->unixPath) return 0;
600 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
601 dta->search_attr, dta->count, &entry )))
602 {
603 HeapFree( GetProcessHeap(), 0, dta->unixPath );
604 dta->unixPath = NULL;
605 return 0;
606 }
607 if ((int)dta->count + count > 0xffff)
608 {
609 WARN(int21, "Too many directory entries in %s\n", dta->unixPath );
610 HeapFree( GetProcessHeap(), 0, dta->unixPath );
611 dta->unixPath = NULL;
612 return 0;
613 }
614 dta->count += count;
615 dta->fileattr = entry.dwFileAttributes;
616 dta->filesize = entry.nFileSizeLow;
617 FileTimeToDosDateTime( &entry.ftLastWriteTime,
618 &dta->filedate, &dta->filetime );
619 strcpy( dta->filename, entry.cAlternateFileName );
620 if (!memchr(dta->mask,'?',11)) {
621 /* wildcardless search, release resources in case no findnext will
622 * be issued, and as a workaround in case file creation messes up
623 * findnext, as sometimes happens with pkunzip */
624 HeapFree( GetProcessHeap(), 0, dta->unixPath );
625 dta->unixPath = NULL;
626 }
627 return 1;
628 }
629
630
631 static BOOL INT21_CreateTempFile( CONTEXT *context )
632 {
633 static int counter = 0;
634 char *name = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context) );
635 char *p = name + strlen(name);
636
637 /* despite what Ralf Brown says, some programs seem to call without
638 * ending backslash (DOS accepts that, so we accept it too) */
639 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
640
641 for (;;)
642 {
643 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
644 counter = (counter + 1) % 1000;
645
646 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
647 {
648 TRACE(int21, "created %s\n", name );
649 return TRUE;
650 }
651 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
652 }
653 }
654
655
656 static BOOL INT21_GetCurrentDirectory( CONTEXT *context )
657 {
658 int drive = DOS_GET_DRIVE( DL_reg(context) );
659 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
660
661 if (!DRIVE_IsValid(drive))
662 {
663 SetLastError( ERROR_INVALID_DRIVE );
664 return FALSE;
665 }
666 lstrcpynA( ptr, DRIVE_GetDosCwd(drive), 64 );
667 AX_reg(context) = 0x0100; /* success return code */
668 return TRUE;
669 }
670
671
672 static void INT21_GetDBCSLeadTable( CONTEXT *context )
673 {
674 if (heap || INT21_CreateHeap())
675 { /* return an empty table just as DOS 4.0+ does */
676 DS_reg(context) = DosHeapHandle;
677 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
678 }
679 else
680 {
681 AX_reg(context) = 0x1; /* error */
682 SET_CFLAG(context);
683 }
684 }
685
686
687 static int INT21_GetDiskSerialNumber( CONTEXT *context )
688 {
689 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
690 int drive = DOS_GET_DRIVE( BL_reg(context) );
691
692 if (!DRIVE_IsValid(drive))
693 {
694 SetLastError( ERROR_INVALID_DRIVE );
695 return 0;
696 }
697
698 *(WORD *)dataptr = 0;
699 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
700 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
701 strncpy(dataptr + 0x11, "FAT16 ", 8);
702 return 1;
703 }
704
705
706 static int INT21_SetDiskSerialNumber( CONTEXT *context )
707 {
708 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
709 int drive = DOS_GET_DRIVE( BL_reg(context) );
710
711 if (!DRIVE_IsValid(drive))
712 {
713 SetLastError( ERROR_INVALID_DRIVE );
714 return 0;
715 }
716
717 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
718 return 1;
719 }
720
721
722 /* microsoft's programmers should be shot for using CP/M style int21
723 calls in Windows for Workgroup's winfile.exe */
724
725 static int INT21_FindFirstFCB( CONTEXT *context )
726 {
727 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
728 FINDFILE_FCB *pFCB;
729 LPCSTR root, cwd;
730 int drive;
731
732 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
733 else pFCB = (FINDFILE_FCB *)fcb;
734 drive = DOS_GET_DRIVE( pFCB->drive );
735 if (!DRIVE_IsValid( drive )) return 0;
736 root = DRIVE_GetRoot( drive );
737 cwd = DRIVE_GetUnixCwd( drive );
738 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
739 strlen(root)+strlen(cwd)+2 );
740 if (!pFCB->unixPath) return 0;
741 strcpy( pFCB->unixPath, root );
742 strcat( pFCB->unixPath, "/" );
743 strcat( pFCB->unixPath, cwd );
744 pFCB->count = 0;
745 return 1;
746 }
747
748
749 static int INT21_FindNextFCB( CONTEXT *context )
750 {
751 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
752 FINDFILE_FCB *pFCB;
753 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
754 WIN32_FIND_DATAA entry;
755 BYTE attr;
756 int count;
757
758 if (*fcb == 0xff) /* extended FCB ? */
759 {
760 attr = fcb[6];
761 pFCB = (FINDFILE_FCB *)(fcb + 7);
762 }
763 else
764 {
765 attr = 0;
766 pFCB = (FINDFILE_FCB *)fcb;
767 }
768
769 if (!pFCB->unixPath) return 0;
770 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
771 DOS_GET_DRIVE( pFCB->drive ), attr,
772 pFCB->count, &entry )))
773 {
774 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
775 pFCB->unixPath = NULL;
776 return 0;
777 }
778 pFCB->count += count;
779
780 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
781 *(BYTE *)pResult = 0xff;
782 (BYTE *)pResult +=6; /* leave reserved field behind */
783 *(BYTE *)pResult = entry.dwFileAttributes;
784 ((BYTE *)pResult)++;
785 }
786 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
787 ((BYTE *)pResult)++;
788 pResult->fileattr = entry.dwFileAttributes;
789 pResult->cluster = 0; /* what else? */
790 pResult->filesize = entry.nFileSizeLow;
791 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
792 FileTimeToDosDateTime( &entry.ftLastWriteTime,
793 &pResult->filedate, &pResult->filetime );
794
795 /* Convert file name to FCB format */
796
797 memset( pResult->filename, ' ', sizeof(pResult->filename) );
798 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
799 else if (!strcmp( entry.cAlternateFileName, ".." ))
800 pResult->filename[0] = pResult->filename[1] = '.';
801 else
802 {
803 char *p = strrchr( entry.cAlternateFileName, '.' );
804 if (p && p[1] && (p != entry.cAlternateFileName))
805 {
806 memcpy( pResult->filename, entry.cAlternateFileName,
807 MIN( (p - entry.cAlternateFileName), 8 ) );
808 memcpy( pResult->filename + 8, p + 1, MIN( strlen(p), 3 ) );
809 }
810 else
811 memcpy( pResult->filename, entry.cAlternateFileName,
812 MIN( strlen(entry.cAlternateFileName), 8 ) );
813 }
814 return 1;
815 }
816
817
818 static void DeleteFileFCB( CONTEXT *context )
819 {
820 FIXME(int21, "(%p): stub\n", context);
821 }
822
823 static void RenameFileFCB( CONTEXT *context )
824 {
825 FIXME(int21, "(%p): stub\n", context);
826 }
827
828
829
830 static void fLock( CONTEXT * context )
831 {
832
833 switch ( AX_reg(context) & 0xff )
834 {
835 case 0x00: /* LOCK */
836 TRACE(int21,"lock handle %d offset %ld length %ld\n",
837 BX_reg(context),
838 MAKELONG(DX_reg(context),CX_reg(context)),
839 MAKELONG(DI_reg(context),SI_reg(context))) ;
840 if (!LockFile(FILE_GetHandle(BX_reg(context)),
841 MAKELONG(DX_reg(context),CX_reg(context)), 0,
842 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
843 AX_reg(context) = GetLastError();
844 SET_CFLAG(context);
845 }
846 break;
847
848 case 0x01: /* UNLOCK */
849 TRACE(int21,"unlock handle %d offset %ld length %ld\n",
850 BX_reg(context),
851 MAKELONG(DX_reg(context),CX_reg(context)),
852 MAKELONG(DI_reg(context),SI_reg(context))) ;
853 if (!UnlockFile(FILE_GetHandle(BX_reg(context)),
854 MAKELONG(DX_reg(context),CX_reg(context)), 0,
855 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
856 AX_reg(context) = GetLastError();
857 SET_CFLAG(context);
858 }
859 return;
860 default:
861 AX_reg(context) = 0x0001;
862 SET_CFLAG(context);
863 return;
864 }
865 }
866
867 static BOOL
868 INT21_networkfunc (CONTEXT *context)
869 {
870 switch (AL_reg(context)) {
871 case 0x00: /* Get machine name. */
872 {
873 char *dst = CTX_SEG_OFF_TO_LIN (context,DS_reg(context),EDX_reg(context));
874 TRACE(int21, "getting machine name to %p\n", dst);
875 if (gethostname (dst, 15))
876 {
877 WARN(int21,"failed!\n");
878 SetLastError( ER_NoNetwork );
879 return TRUE;
880 } else {
881 int len = strlen (dst);
882 while (len < 15)
883 dst[len++] = ' ';
884 dst[15] = 0;
885 CH_reg(context) = 1; /* Valid */
886 CL_reg(context) = 1; /* NETbios number??? */
887 TRACE(int21, "returning %s\n", debugstr_an (dst, 16));
888 return FALSE;
889 }
890 }
891
892 default:
893 SetLastError( ER_NoNetwork );
894 return TRUE;
895 }
896 }
897
898 static void INT21_SetCurrentPSP(WORD psp)
899 {
900 #ifdef MZ_SUPPORTED
901 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
902 NE_MODULE *pModule = pTask ? NE_GetPtr( pTask->hModule ) : NULL;
903
904 GlobalUnlock16( GetCurrentTask() );
905 if (pModule->lpDosTask)
906 pModule->lpDosTask->psp_seg = psp;
907 else
908 #endif
909 ERR(int21, "Cannot change PSP for non-DOS task!\n");
910 }
911
912 static WORD INT21_GetCurrentPSP()
913 {
914 #ifdef MZ_SUPPORTED
915 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
916 NE_MODULE *pModule = pTask ? NE_GetPtr( pTask->hModule ) : NULL;
917
918 GlobalUnlock16( GetCurrentTask() );
919 if (pModule->lpDosTask)
920 return pModule->lpDosTask->psp_seg;
921 else
922 #endif
923 return GetCurrentPDB16();
924 }
925
926
927 SEGPTR INT21_GetListOfLists()
928 {
929 static DOS_LISTOFLISTS *LOL;
930 static SEGPTR seg_LOL;
931
932 /*
933 Output of DOS 6.22:
934
935 0133:0020 6A 13-33 01 CC 00 33 01 59 00 j.3...3.Y.
936 0133:0030 70 00 00 00 72 02 00 02-6D 00 33 01 00 00 2E 05 p...r...m.3.....
937 0133:0040 00 00 FC 04 00 00 03 08-92 21 11 E0 04 80 C6 0D .........!......
938 0133:0050 CC 0D 4E 55 4C 20 20 20-20 20 00 00 00 00 00 00 ..NUL ......
939 0133:0060 00 4B BA C1 06 14 00 00-00 03 01 00 04 70 CE FF .K...........p..
940 0133:0070 FF 00 00 00 00 00 00 00-00 01 00 00 0D 05 00 00 ................
941 0133:0080 00 FF FF 00 00 00 00 FE-00 00 F8 03 FF 9F 70 02 ..............p.
942 0133:0090 D0 44 C8 FD D4 44 C8 FD-D4 44 C8 FD D0 44 C8 FD .D...D...D...D..
943 0133:00A0 D0 44 C8 FD D0 44 .D...D
944 */
945 if (!LOL) {
946 LOL = SEGPTR_ALLOC(sizeof(DOS_LISTOFLISTS));
947
948 LOL->CX_Int21_5e01 = 0x0;
949 LOL->LRU_count_FCB_cache = 0x0;
950 LOL->LRU_count_FCB_open = 0x0;
951 LOL->OEM_func_handler = -1; /* not available */
952 LOL->INT21_offset = 0x0;
953 LOL->sharing_retry_count = sharing_retries; /* default value: 3 */
954 LOL->sharing_retry_delay = sharing_pause; /* default value: 1 */
955 LOL->ptr_disk_buf = 0x0;
956 LOL->offs_unread_CON = 0x0;
957 LOL->seg_first_MCB = 0x0;
958 LOL->ptr_first_DPB = 0x0;
959 LOL->ptr_first_SysFileTable = 0x0;
960 LOL->ptr_clock_dev_hdr = 0x0;
961 LOL->ptr_CON_dev_hdr = 0x0;
962 LOL->max_byte_per_sec = 512;
963 LOL->ptr_disk_buf_info = 0x0;
964 LOL->ptr_array_CDS = 0x0;
965 LOL->ptr_sys_FCB = 0x0;
966 LOL->nr_protect_FCB = 0x0;
967 LOL->nr_block_dev = 0x0;
968 LOL->nr_avail_drive_letters = 26; /* A - Z */
969 LOL->nr_drives_JOINed = 0x0;
970 LOL->ptr_spec_prg_names = 0x0;
971 LOL->ptr_SETVER_prg_list = 0x0; /* no SETVER list */
972 LOL->DOS_HIGH_A20_func_offs = 0x0;
973 LOL->PSP_last_exec = 0x0;
974 LOL->BUFFERS_val = 99; /* maximum: 99 */
975 LOL->BUFFERS_nr_lookahead = 8; /* maximum: 8 */
976 LOL->boot_drive = 3; /* C: */
977 LOL->flag_DWORD_moves = 0x01; /* i386+ */
978 LOL->size_extended_mem = 0xf000; /* very high value */
979 }
980 if (!seg_LOL) seg_LOL = SEGPTR_GET(LOL);
981 return seg_LOL+(WORD)&((DOS_LISTOFLISTS*)0)->ptr_first_DPB;
982 }
983
984
985 /***********************************************************************
986 * INT21_GetExtendedError
987 */
988 static void INT21_GetExtendedError( CONTEXT *context )
989 {
990 BYTE class, action, locus;
991 WORD error = GetLastError();
992
993 switch(error)
994 {
995 case ERROR_SUCCESS:
996 class = action = locus = 0;
997 break;
998 case ERROR_DIR_NOT_EMPTY:
999 class = EC_Exists;
1000 action = SA_Ignore;
1001 locus = EL_Disk;
1002 break;
1003 case ERROR_ACCESS_DENIED:
1004 class = EC_AccessDenied;
1005 action = SA_Abort;
1006 locus = EL_Disk;
1007 break;
1008 case ERROR_CANNOT_MAKE:
1009 class = EC_AccessDenied;
1010 action = SA_Abort;
1011 locus = EL_Unknown;
1012 break;
1013 case ERROR_DISK_FULL:
1014 case ERROR_HANDLE_DISK_FULL:
1015 class = EC_MediaError;
1016 action = SA_Abort;
1017 locus = EL_Disk;
1018 break;
1019 case ERROR_FILE_EXISTS:
1020 case ERROR_ALREADY_EXISTS:
1021 class = EC_Exists;
1022 action = SA_Abort;
1023 locus = EL_Disk;
1024 break;
1025 case ERROR_FILE_NOT_FOUND:
1026 class = EC_NotFound;
1027 action = SA_Abort;
1028 locus = EL_Disk;
1029 break;
1030 case ER_GeneralFailure:
1031 class = EC_SystemFailure;
1032 action = SA_Abort;
1033 locus = EL_Unknown;
1034 break;
1035 case ERROR_INVALID_DRIVE:
1036 class = EC_MediaError;
1037 action = SA_Abort;
1038 locus = EL_Disk;
1039 break;
1040 case ERROR_INVALID_HANDLE:
1041 class = EC_ProgramError;
1042 action = SA_Abort;
1043 locus = EL_Disk;
1044 break;
1045 case ERROR_LOCK_VIOLATION:
1046 class = EC_AccessDenied;
1047 action = SA_Abort;
1048 locus = EL_Disk;
1049 break;
1050 case ERROR_NO_MORE_FILES:
1051 class = EC_MediaError;
1052 action = SA_Abort;
1053 locus = EL_Disk;
1054 break;
1055 case ER_NoNetwork:
1056 class = EC_NotFound;
1057 action = SA_Abort;
1058 locus = EL_Network;
1059 break;
1060 case ERROR_NOT_ENOUGH_MEMORY:
1061 class = EC_OutOfResource;
1062 action = SA_Abort;
1063 locus = EL_Memory;
1064 break;
1065 case ERROR_PATH_NOT_FOUND:
1066 class = EC_NotFound;
1067 action = SA_Abort;
1068 locus = EL_Disk;
1069 break;
1070 case ERROR_SEEK:
1071 class = EC_NotFound;
1072 action = SA_Ignore;
1073 locus = EL_Disk;
1074 break;
1075 case ERROR_SHARING_VIOLATION:
1076 class = EC_Temporary;
1077 action = SA_Retry;
1078 locus = EL_Disk;
1079 break;
1080 case ERROR_TOO_MANY_OPEN_FILES:
1081 class = EC_ProgramError;
1082 action = SA_Abort;
1083 locus = EL_Disk;
1084 break;
1085 default:
1086 FIXME( int21, "Unknown error %d\n", error );
1087 class = EC_SystemFailure;
1088 action = SA_Abort;
1089 locus = EL_Unknown;
1090 break;
1091 }
1092 TRACE( int21, "GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1093 error, class, action, locus );
1094 AX_reg(context) = error;
1095 BH_reg(context) = class;
1096 BL_reg(context) = action;
1097 CH_reg(context) = locus;
1098 }
1099
1100 /***********************************************************************
1101 * DOS3Call (KERNEL.102)
1102 */
1103 void WINAPI DOS3Call( CONTEXT *context )
1104 {
1105 BOOL bSetDOSExtendedError = FALSE;
1106
1107
1108 TRACE(int21, "AX=%04x BX=%04x CX=%04x DX=%04x "
1109 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1110 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1111 SI_reg(context), DI_reg(context),
1112 (WORD)DS_reg(context), (WORD)ES_reg(context),
1113 EFL_reg(context) );
1114
1115
1116 if (AH_reg(context) == 0x59) /* Get extended error info */
1117 {
1118 INT21_GetExtendedError( context );
1119 return;
1120 }
1121
1122 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1123 {
1124 TRACE(int21, "FLUSH BUFFER AND READ STANDARD INPUT\n");
1125 /* no flush here yet */
1126 AH_reg(context) = AL_reg(context);
1127 }
1128
1129 if (AH_reg(context)>=0x2f) {
1130 /* extended error is used by (at least) functions 0x2f to 0x62 */
1131 SetLastError(0);
1132 }
1133 RESET_CFLAG(context); /* Not sure if this is a good idea */
1134
1135 switch(AH_reg(context))
1136 {
1137 case 0x03: /* READ CHARACTER FROM STDAUX */
1138 case 0x04: /* WRITE CHARACTER TO STDAUX */
1139 case 0x05: /* WRITE CHARACTER TO PRINTER */
1140 case 0x0f: /* OPEN FILE USING FCB */
1141 case 0x10: /* CLOSE FILE USING FCB */
1142 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1143 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1144 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1145 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1146 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1147 case 0x23: /* GET FILE SIZE FOR FCB */
1148 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1149 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1150 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1151 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1152 case 0x54: /* GET VERIFY FLAG */
1153 INT_BARF( context, 0x21 );
1154 break;
1155
1156 case 0x00: /* TERMINATE PROGRAM */
1157 TRACE(int21,"TERMINATE PROGRAM\n");
1158 ExitProcess( 0 );
1159 break;
1160
1161 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1162 TRACE(int21,"DIRECT CHARACTER INPUT WITH ECHO\n");
1163 AL_reg(context) = CONSOLE_GetCharacter();
1164 /* FIXME: no echo */
1165 break;
1166
1167 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1168 TRACE(int21, "Write Character to Standard Output\n");
1169 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1170 break;
1171
1172 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1173 if (DL_reg(context) == 0xff) {
1174 static char scan = 0;
1175 TRACE(int21, "Direct Console Input\n");
1176 if (scan) {
1177 /* return pending scancode */
1178 AL_reg(context) = scan;
1179 FL_reg(context) &= ~0x40; /* clear ZF */
1180 scan = 0;
1181 } else {
1182 char ascii;
1183 if (CONSOLE_CheckForKeystroke(&scan,&ascii)) {
1184 CONSOLE_GetKeystroke(&scan,&ascii);
1185 /* return ASCII code */
1186 AL_reg(context) = ascii;
1187 FL_reg(context) &= ~0x40; /* clear ZF */
1188 /* return scan code on next call only if ascii==0 */
1189 if (ascii) scan = 0;
1190 } else {
1191 /* nothing pending, clear everything */
1192 AL_reg(context) = 0;
1193 FL_reg(context) |= 0x40; /* set ZF */
1194 scan = 0; /* just in case */
1195 }
1196 }
1197 } else {
1198 TRACE(int21, "Direct Console Output\n");
1199 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1200 }
1201 break;
1202
1203 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1204 TRACE(int21,"DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1205 AL_reg(context) = CONSOLE_GetCharacter();
1206 break;
1207
1208 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1209 TRACE(int21,"CHARACTER INPUT WITHOUT ECHO\n");
1210 AL_reg(context) = CONSOLE_GetCharacter();
1211 break;
1212
1213 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1214 TRACE(int21,"WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1215 DS_reg(context),DX_reg(context) );
1216 {
1217 LPSTR data = CTX_SEG_OFF_TO_LIN(context,DS_reg(context),EDX_reg(context));
1218 LPSTR p = data;
1219 /* do NOT use strchr() to calculate the string length,
1220 as '\0' is valid string content, too !
1221 Maybe we should check for non-'$' strings, but DOS doesn't. */
1222 while (*p != '$') p++;
1223 _hwrite16( 1, data, (int)p - (int)data);
1224 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1225 }
1226 break;
1227
1228 case 0x0a: /* BUFFERED INPUT */
1229 {
1230 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1231 EDX_reg(context) ));
1232 int res;
1233
1234 TRACE(int21,"BUFFERED INPUT (size=%d)\n",buffer[0]);
1235 if (buffer[1])
1236 TRACE(int21,"Handle old chars in buffer!\n");
1237 res=_lread16( 0, buffer+2,buffer[0]);
1238 buffer[1]=res;
1239 if(buffer[res+1] == '\n')
1240 buffer[res+1] = '\r';
1241 break;
1242 }
1243
1244 case 0x0b: {/* GET STDIN STATUS */
1245 char x1,x2;
1246
1247 if (CONSOLE_CheckForKeystroke(&x1,&x2))
1248 AL_reg(context) = 0xff;
1249 else
1250 AL_reg(context) = 0;
1251 break;
1252 }
1253 case 0x2e: /* SET VERIFY FLAG */
1254 TRACE(int21,"SET VERIFY FLAG ignored\n");
1255 /* we cannot change the behaviour anyway, so just ignore it */
1256 break;
1257
1258 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1259 case 0x1d:
1260 case 0x1e:
1261 case 0x20:
1262 case 0x6b: /* NULL FUNCTION */
1263 AL_reg(context) = 0;
1264 break;
1265
1266 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1267 fLock(context);
1268 break;
1269
1270 case 0x0d: /* DISK BUFFER FLUSH */
1271 TRACE(int21,"DISK BUFFER FLUSH ignored\n");
1272 RESET_CFLAG(context); /* dos 6+ only */
1273 break;
1274
1275 case 0x0e: /* SELECT DEFAULT DRIVE */
1276 TRACE(int21,"SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1277 DRIVE_SetCurrentDrive( DL_reg(context) );
1278 AL_reg(context) = MAX_DOS_DRIVES;
1279 break;
1280
1281 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1282 TRACE(int21,"FIND FIRST MATCHING FILE USING FCB %p\n",
1283 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1284 if (!INT21_FindFirstFCB(context))
1285 {
1286 AL_reg(context) = 0xff;
1287 break;
1288 }
1289 /* else fall through */
1290
1291 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1292 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1293 break;
1294
1295 case 0x13: /* DELETE FILE USING FCB */
1296 DeleteFileFCB(context);
1297 break;
1298
1299 case 0x17: /* RENAME FILE USING FCB */
1300 RenameFileFCB(context);
1301 break;
1302
1303 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1304 AL_reg(context) = DRIVE_GetCurrentDrive();
1305 break;
1306
1307 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1308 {
1309 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1310 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(context),DX_reg(context));
1311 TRACE(int21, "Set DTA: %08lx\n", pTask->dta);
1312 }
1313 break;
1314
1315 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1316 DL_reg(context) = 0;
1317 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1318 break;
1319
1320 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1321 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1322 break;
1323
1324 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1325 GetDrivePB(context, DRIVE_GetCurrentDrive());
1326 break;
1327
1328 case 0x25: /* SET INTERRUPT VECTOR */
1329 INT_CtxSetHandler( context, AL_reg(context),
1330 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1331 DX_reg(context)));
1332 break;
1333
1334 case 0x29: /* PARSE FILENAME INTO FCB */
1335 INT21_ParseFileNameIntoFCB(context);
1336 break;
1337
1338 case 0x2a: /* GET SYSTEM DATE */
1339 INT21_GetSystemDate(context);
1340 break;
1341
1342 case 0x2b: /* SET SYSTEM DATE */
1343 FIXME(int21, "SetSystemDate(%02d/%02d/%04d): not allowed\n",
1344 DL_reg(context), DH_reg(context), CX_reg(context) );
1345 AL_reg(context) = 0; /* Let's pretend we succeeded */
1346 break;
1347
1348 case 0x2c: /* GET SYSTEM TIME */
1349 INT21_GetSystemTime(context);
1350 break;
1351
1352 case 0x2d: /* SET SYSTEM TIME */
1353 FIXME(int21, "SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1354 CH_reg(context), CL_reg(context),
1355 DH_reg(context), DL_reg(context) );
1356 AL_reg(context) = 0; /* Let's pretend we succeeded */
1357 break;
1358
1359 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1360 TRACE(int21,"GET DISK TRANSFER AREA ADDRESS\n");
1361 {
1362 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1363 ES_reg(context) = SELECTOROF( pTask->dta );
1364 BX_reg(context) = OFFSETOF( pTask->dta );
1365 }
1366 break;
1367
1368 case 0x30: /* GET DOS VERSION */
1369 TRACE(int21,"GET DOS VERSION %s requested\n",
1370 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1371 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1372 (HIWORD(GetVersion16()) << 8);
1373 #if 0
1374 AH_reg(context) = 0x7;
1375 AL_reg(context) = 0xA;
1376 #endif
1377
1378 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1379 CX_reg(context) = 0x0000;
1380 break;
1381
1382 case 0x31: /* TERMINATE AND STAY RESIDENT */
1383 FIXME(int21,"TERMINATE AND STAY RESIDENT stub\n");
1384 break;
1385
1386 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1387 TRACE(int21,"GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1388 INT21_DriveName( DL_reg(context)));
1389 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1390 break;
1391
1392 case 0x33: /* MULTIPLEXED */
1393 switch (AL_reg(context))
1394 {
1395 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1396 TRACE(int21,"GET CURRENT EXTENDED BREAK STATE\n");
1397 DL_reg(context) = DOSCONF_config.brk_flag;
1398 break;
1399
1400 case 0x01: /* SET EXTENDED BREAK STATE */
1401 TRACE(int21,"SET CURRENT EXTENDED BREAK STATE\n");
1402 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1403 break;
1404
1405 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1406 TRACE(int21,"GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1407 /* ugly coding in order to stay reentrant */
1408 if (DL_reg(context))
1409 {
1410 DL_reg(context) = DOSCONF_config.brk_flag;
1411 DOSCONF_config.brk_flag = 1;
1412 }
1413 else
1414 {
1415 DL_reg(context) = DOSCONF_config.brk_flag;
1416 DOSCONF_config.brk_flag = 0;
1417 }
1418 break;
1419
1420 case 0x05: /* GET BOOT DRIVE */
1421 TRACE(int21,"GET BOOT DRIVE\n");
1422 DL_reg(context) = 3;
1423 /* c: is Wine's bootdrive (a: is 1)*/
1424 break;
1425
1426 case 0x06: /* GET TRUE VERSION NUMBER */
1427 TRACE(int21,"GET TRUE VERSION NUMBER\n");
1428 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1429 (HIWORD(GetVersion16() << 8));
1430 DX_reg(context) = 0x00;
1431 break;
1432
1433 default:
1434 INT_BARF( context, 0x21 );
1435 break;
1436 }
1437 break;
1438
1439 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1440 TRACE(int21,"GET ADDRESS OF INDOS FLAG\n");
1441 if (!heap) INT21_CreateHeap();
1442 ES_reg(context) = DosHeapHandle;
1443 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1444 break;
1445
1446 case 0x35: /* GET INTERRUPT VECTOR */
1447 TRACE(int21,"GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1448 {
1449 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1450 ES_reg(context) = SELECTOROF(addr);
1451 BX_reg(context) = OFFSETOF(addr);
1452 }
1453 break;
1454
1455 case 0x36: /* GET FREE DISK SPACE */
1456 TRACE(int21,"GET FREE DISK SPACE FOR DRIVE %s\n",
1457 INT21_DriveName( DL_reg(context)));
1458 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1459 break;
1460
1461 case 0x37:
1462 {
1463 unsigned char switchchar='/';
1464 switch (AL_reg(context))
1465 {
1466 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1467 TRACE(int21,"SWITCHAR - GET SWITCH CHARACTER\n");
1468 AL_reg(context) = 0x00; /* success*/
1469 DL_reg(context) = switchchar;
1470 break;
1471 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1472 TRACE(int21,"SWITCHAR - SET SWITCH CHARACTER\n");
1473 switchchar = DL_reg(context);
1474 AL_reg(context) = 0x00; /* success*/
1475 break;
1476 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1477 INT_BARF( context, 0x21 );
1478 break;
1479 }
1480 break;
1481 }
1482
1483 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1484 TRACE(int21,"GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1485 AL_reg(context));
1486 AX_reg(context) = 0x02; /* no country support available */
1487 SET_CFLAG(context);
1488 break;
1489
1490 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1491 TRACE(int21,"MKDIR %s\n",
1492 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1493 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1494 EDX_reg(context) ), NULL));
1495 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1496 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1497 * denied), while CreateDirectory return several ones. remap some of
1498 * them. -Marcus
1499 */
1500 if (bSetDOSExtendedError) {
1501 switch (GetLastError()) {
1502 case ERROR_ALREADY_EXISTS:
1503 case ERROR_FILENAME_EXCED_RANGE:
1504 case ERROR_DISK_FULL:
1505 SetLastError(ERROR_ACCESS_DENIED);
1506 break;
1507 default: break;
1508 }
1509 }
1510 break;
1511
1512 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1513 TRACE(int21,"RMDIR %s\n",
1514 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1515 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1516 EDX_reg(context) )));
1517 break;
1518
1519 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1520 TRACE(int21,"CHDIR %s\n",
1521 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1522 bSetDOSExtendedError = !INT21_ChangeDir(context);
1523 break;
1524
1525 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1526 TRACE(int21,"CREAT flag 0x%02x %s\n",CX_reg(context),
1527 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1528 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1529 EDX_reg(context) ), CX_reg(context) );
1530 bSetDOSExtendedError = (AX_reg(context) == (WORD)HFILE_ERROR16);
1531 break;
1532
1533 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1534 TRACE(int21,"OPEN mode 0x%02x %s\n",AL_reg(context),
1535 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1536 OpenExistingFile(context);
1537 break;
1538
1539 case 0x3e: /* "CLOSE" - CLOSE FILE */
1540 TRACE(int21,"CLOSE handle %d\n",BX_reg(context));
1541 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1542 break;
1543
1544 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1545 TRACE(int21,"READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1546 DS_reg(context),DX_reg(context),CX_reg(context) );
1547 {
1548 LONG result;
1549 if (ISV86(context))
1550 result = _hread16( BX_reg(context),
1551 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1552 EDX_reg(context) ),
1553 CX_reg(context) );
1554 else
1555 result = WIN16_hread( BX_reg(context),
1556 PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1557 EDX_reg(context) ),
1558 CX_reg(context) );
1559 if (result == -1) bSetDOSExtendedError = TRUE;
1560 else AX_reg(context) = (WORD)result;
1561 }
1562 break;
1563
1564 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1565 TRACE(int21,"WRITE from %04lX:%04X to handle %d for %d byte\n",
1566 DS_reg(context),DX_reg(context),BX_reg(context),CX_reg(context) );
1567 {
1568 LONG result = _hwrite16( BX_reg(context),
1569 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1570 EDX_reg(context) ),
1571 CX_reg(context) );
1572 if (result == -1) bSetDOSExtendedError = TRUE;
1573 else AX_reg(context) = (WORD)result;
1574 }
1575 break;
1576
1577 case 0x41: /* "UNLINK" - DELETE FILE */
1578 TRACE(int21,"UNLINK%s\n",
1579 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1580 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1581 EDX_reg(context) )));
1582 break;
1583
1584 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1585 TRACE(int21,"LSEEK handle %d offset %ld from %s\n",
1586 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1587 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1588 "current file position":"end of file");
1589 {
1590 LONG status = _llseek16( BX_reg(context),
1591 MAKELONG(DX_reg(context),CX_reg(context)),
1592 AL_reg(context) );
1593 if (status == -1) bSetDOSExtendedError = TRUE;
1594 else
1595 {
1596 AX_reg(context) = LOWORD(status);
1597 DX_reg(context) = HIWORD(status);
1598 }
1599 }
1600 break;
1601
1602 case 0x43: /* FILE ATTRIBUTES */
1603 switch (AL_reg(context))
1604 {
1605 case 0x00:
1606 TRACE(int21,"GET FILE ATTRIBUTES for %s\n",
1607 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1608 AX_reg(context) = (WORD)GetFileAttributesA(
1609 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1610 EDX_reg(context)));
1611 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1612 else CX_reg(context) = AX_reg(context);
1613 break;
1614
1615 case 0x01:
1616 TRACE(int21,"SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1617 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1618 bSetDOSExtendedError =
1619 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1620 EDX_reg(context)),
1621 CX_reg(context) ));
1622 break;
1623 case 0x02:
1624 TRACE(int21,"GET COMPRESSED FILE SIZE for %s stub\n",
1625 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1626 }
1627 break;
1628
1629 case 0x44: /* IOCTL */
1630 switch (AL_reg(context))
1631 {
1632 case 0x00:
1633 ioctlGetDeviceInfo(context);
1634 break;
1635
1636 case 0x01:
1637 break;
1638 case 0x02:{
1639 const DOS_DEVICE *dev;
1640 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )) &&
1641 !strcasecmp( dev->name, "SCSIMGR$" ))
1642 {
1643 ASPI_DOS_HandleInt(context);
1644 }
1645 break;
1646 }
1647 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1648 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));*/
1649 int drive = DOS_GET_DRIVE(BL_reg(context));
1650
1651 FIXME(int21,"program tried to write to block device control channel of drive %d:\n",drive);
1652 /* for (i=0;i<CX_reg(context);i++)
1653 fprintf(stdnimp,"%02x ",dataptr[i]);
1654 fprintf(stdnimp,"\n");*/
1655 AX_reg(context)=CX_reg(context);
1656 break;
1657 }
1658 case 0x08: /* Check if drive is removable. */
1659 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1660 INT21_DriveName( BL_reg(context)));
1661 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1662 {
1663 case DRIVE_CANNOTDETERMINE:
1664 SetLastError( ERROR_INVALID_DRIVE );
1665 AX_reg(context) = ERROR_INVALID_DRIVE;
1666 SET_CFLAG(context);
1667 break;
1668 case DRIVE_REMOVABLE:
1669 AX_reg(context) = 0; /* removable */
1670 break;
1671 default:
1672 AX_reg(context) = 1; /* not removable */
1673 break;
1674 }
1675 break;
1676
1677 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1678 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1679 INT21_DriveName( BL_reg(context)));
1680 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1681 {
1682 case DRIVE_CANNOTDETERMINE:
1683 SetLastError( ERROR_INVALID_DRIVE );
1684 AX_reg(context) = ERROR_INVALID_DRIVE;
1685 SET_CFLAG(context);
1686 break;
1687 case DRIVE_REMOTE:
1688 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1689 break;
1690 default:
1691 DX_reg(context) = 0; /* FIXME: use driver attr here */
1692 break;
1693 }
1694 break;
1695
1696 case 0x0a: /* check if handle (BX) is remote */
1697 TRACE(int21,"IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1698 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1699 * not set on close
1700 */
1701 DX_reg(context) = 0;
1702 break;
1703
1704 case 0x0b: /* SET SHARING RETRY COUNT */
1705 TRACE(int21,"IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1706 CX_reg(context), DX_reg(context));
1707 if (!CX_reg(context))
1708 {
1709 AX_reg(context) = 1;
1710 SET_CFLAG(context);
1711 break;
1712 }
1713 sharing_pause = CX_reg(context);
1714 if (!DX_reg(context))
1715 sharing_retries = DX_reg(context);
1716 RESET_CFLAG(context);
1717 break;
1718
1719 case 0x0d:
1720 TRACE(int21,"IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1721 INT21_DriveName( BL_reg(context)));
1722 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1723 break;
1724
1725 case 0x0e: /* get logical drive mapping */
1726 TRACE(int21,"IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1727 INT21_DriveName( BL_reg(context)));
1728 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1729 break;
1730
1731 case 0x0F: /* Set logical drive mapping */
1732 {
1733 int drive;
1734 TRACE(int21,"IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1735 INT21_DriveName( BL_reg(context)));
1736 drive = DOS_GET_DRIVE ( BL_reg(context) );
1737 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1738 {
1739 SET_CFLAG(context);
1740 AX_reg(context) = 0x000F; /* invalid drive */
1741 }
1742 break;
1743 }
1744
1745 case 0xe0: /* Sun PC-NFS API */
1746 /* not installed */
1747 break;
1748
1749 default:
1750 INT_BARF( context, 0x21 );
1751 break;
1752 }
1753 break;
1754
1755 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1756 {
1757 HANDLE handle;
1758 TRACE(int21,"DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1759 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1760 FILE_GetHandle(BX_reg(context)),
1761 GetCurrentProcess(), &handle,
1762 0, TRUE, DUPLICATE_SAME_ACCESS )))
1763 AX_reg(context) = HFILE_ERROR16;
1764 else
1765 AX_reg(context) = FILE_AllocDosHandle(handle);
1766 break;
1767 }
1768
1769 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1770 TRACE(int21,"FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1771 BX_reg(context),CX_reg(context));
1772 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1773 break;
1774
1775 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1776 TRACE(int21,"CWD - GET CURRENT DIRECTORY for drive %s\n",
1777 INT21_DriveName( DL_reg(context)));
1778 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1779 break;
1780
1781 case 0x48: /* ALLOCATE MEMORY */
1782 TRACE(int21,"ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1783 {
1784 LPVOID *mem;
1785 if (ISV86(context))
1786 {
1787 mem= DOSMEM_GetBlock(0,(DWORD)BX_reg(context)<<4,NULL);
1788 if (mem)
1789 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1790 }
1791 else
1792 {
1793 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1794 if (mem)
1795 AX_reg(context) = (DWORD)mem&0xffff;
1796 }
1797 if (!mem)
1798 {
1799 SET_CFLAG(context);
1800 AX_reg(context) = 0x0008; /* insufficient memory */
1801 BX_reg(context) = DOSMEM_Available(0)>>4;
1802 }
1803 }
1804 break;
1805
1806 case 0x49: /* FREE MEMORY */
1807 TRACE(int21,"FREE MEMORY segment %04lX\n", ES_reg(context));
1808 {
1809 BOOL ret;
1810 if (ISV86(context))
1811 ret= DOSMEM_FreeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4));
1812 else
1813 {
1814 ret = !GlobalDOSFree16(ES_reg(context));
1815 /* If we don't reset ES_reg, we will fail in the relay code */
1816 ES_reg(context)=ret;
1817 }
1818 if (!ret)
1819 {
1820 TRACE(int21,"FREE MEMORY failed\n");
1821 SET_CFLAG(context);
1822 AX_reg(context) = 0x0009; /* memory block address invalid */
1823 }
1824 }
1825 break;
1826
1827 case 0x4a: /* RESIZE MEMORY BLOCK */
1828 TRACE(int21,"RESIZE MEMORY segment %04lX to %d paragraphs\n", ES_reg(context), BX_reg(context));
1829 if (!ISV86(context))
1830 FIXME(int21,"RESIZE MEMORY probably insufficent implementation. Expect crash soon\n");
1831 {
1832 LPVOID *mem = DOSMEM_ResizeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4),
1833 BX_reg(context)<<4,NULL);
1834 if (mem)
1835 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1836 else {
1837 SET_CFLAG(context);
1838 AX_reg(context) = 0x0008; /* insufficient memory */
1839 BX_reg(context) = DOSMEM_Available(0)>>4; /* not quite right */
1840 }
1841 }
1842 break;
1843
1844 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1845 TRACE(int21,"EXEC %s\n",
1846 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context) ));
1847 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1848 EDX_reg(context) ),
1849 SW_NORMAL );
1850 if (AX_reg(context) < 32) SET_CFLAG(context);
1851 break;
1852
1853 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1854 TRACE(int21,"EXIT with return code %d\n",AL_reg(context));
1855 ExitProcess( AL_reg(context) );
1856 break;
1857
1858 case 0x4d: /* GET RETURN CODE */
1859 TRACE(int21,"GET RETURN CODE (ERRORLEVEL)\n");
1860 AX_reg(context) = 0; /* normal exit */
1861 break;
1862
1863 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1864 TRACE(int21,"FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1865 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1866 if (!INT21_FindFirst(context)) break;
1867 /* fall through */
1868
1869 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1870 TRACE(int21,"FINDNEXT\n");
1871 if (!INT21_FindNext(context))
1872 {
1873 SetLastError( ERROR_NO_MORE_FILES );
1874 AX_reg(context) = ERROR_NO_MORE_FILES;
1875 SET_CFLAG(context);
1876 }
1877 else AX_reg(context) = 0; /* OK */
1878 break;
1879 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1880 TRACE(int21, "SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1881 INT21_SetCurrentPSP(BX_reg(context));
1882 break;
1883 case 0x51: /* GET PSP ADDRESS */
1884 TRACE(int21,"GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1885 /* FIXME: should we return the original DOS PSP upon */
1886 /* Windows startup ? */
1887 BX_reg(context) = INT21_GetCurrentPSP();
1888 break;
1889 case 0x62: /* GET PSP ADDRESS */
1890 TRACE(int21,"GET CURRENT PSP ADDRESS\n");
1891 /* FIXME: should we return the original DOS PSP upon */
1892 /* Windows startup ? */
1893 BX_reg(context) = INT21_GetCurrentPSP();
1894 break;
1895
1896 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1897 TRACE(int21,"SYSVARS - GET LIST OF LISTS\n");
1898 {
1899 SEGPTR lol;
1900 lol = INT21_GetListOfLists();
1901 ES_reg(context) = HIWORD(lol);
1902 BX_reg(context) = LOWORD(lol);
1903 }
1904 break;
1905
1906 case 0x56: /* "RENAME" - RENAME FILE */
1907 TRACE(int21,"RENAME %s to %s\n",
1908 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1909 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context)));
1910 bSetDOSExtendedError =
1911 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1912 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context))));
1913 break;
1914
1915 case 0x57: /* FILE DATE AND TIME */
1916 switch (AL_reg(context))
1917 {
1918 case 0x00: /* Get */
1919 {
1920 FILETIME filetime;
1921 TRACE(int21,"GET FILE DATE AND TIME for handle %d\n",
1922 BX_reg(context));
1923 if (!GetFileTime( FILE_GetHandle(BX_reg(context)), NULL, NULL, &filetime ))
1924 bSetDOSExtendedError = TRUE;
1925 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1926 &CX_reg(context) );
1927 }
1928 break;
1929
1930 case 0x01: /* Set */
1931 {
1932 FILETIME filetime;
1933 TRACE(int21,"SET FILE DATE AND TIME for handle %d\n",
1934 BX_reg(context));
1935 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1936 &filetime );
1937 bSetDOSExtendedError =
1938 (!SetFileTime( FILE_GetHandle(BX_reg(context)),
1939 NULL, NULL, &filetime ));
1940 }
1941 break;
1942 }
1943 break;
1944
1945 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1946 TRACE(int21,"GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1947 AL_reg(context));
1948 switch (AL_reg(context))
1949 {
1950 case 0x00:
1951 AX_reg(context) = 1;
1952 break;
1953 case 0x02:
1954 AX_reg(context) = 0;
1955 break;
1956 case 0x01:
1957 case 0x03:
1958 break;
1959 }
1960 RESET_CFLAG(context);
1961 break;
1962
1963 case 0x5a: /* CREATE TEMPORARY FILE */
1964 TRACE(int21,"CREATE TEMPORARY FILE\n");
1965 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1966 break;
1967
1968 case 0x5b: /* CREATE NEW FILE */
1969 TRACE(int21,"CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1970 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1971 bSetDOSExtendedError = ((AX_reg(context) =
1972 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)), 0 ))
1973 == (WORD)HFILE_ERROR16);
1974 break;
1975
1976 case 0x5d: /* NETWORK */
1977 FIXME(int21,"Function 0x%04x not implemented.\n", AX_reg (context));
1978 /* Fix the following while you're at it. */
1979 SetLastError( ER_NoNetwork );
1980 bSetDOSExtendedError = TRUE;
1981 break;
1982
1983 case 0x5e:
1984 bSetDOSExtendedError = INT21_networkfunc (context);
1985 break;
1986
1987 case 0x5f: /* NETWORK */
1988 switch (AL_reg(context))
1989 {
1990 case 0x07: /* ENABLE DRIVE */
1991 TRACE(int21,"ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1992 if (!DRIVE_Enable( DL_reg(context) ))
1993 {
1994 SetLastError( ERROR_INVALID_DRIVE );
1995 bSetDOSExtendedError = TRUE;
1996 }
1997 break;
1998
1999 case 0x08: /* DISABLE DRIVE */
2000 TRACE(int21,"DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2001 if (!DRIVE_Disable( DL_reg(context) ))
2002 {
2003 SetLastError( ERROR_INVALID_DRIVE );
2004 bSetDOSExtendedError = TRUE;
2005 }
2006 break;
2007
2008 default:
2009 /* network software not installed */
2010 TRACE(int21,"NETWORK function AX=%04x not implemented\n",AX_reg(context));
2011 SetLastError( ER_NoNetwork );
2012 bSetDOSExtendedError = TRUE;
2013 break;
2014 }
2015 break;
2016
2017 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
2018 TRACE(int21,"TRUENAME %s\n",
2019 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),ESI_reg(context)));
2020 {
2021 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2022 ESI_reg(context)), 128,
2023 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2024 EDI_reg(context)),NULL))
2025 bSetDOSExtendedError = TRUE;
2026 else AX_reg(context) = 0;
2027 }
2028 break;
2029
2030 case 0x61: /* UNUSED */
2031 case 0x63: /* misc. language support */
2032 switch (AL_reg(context)) {
2033 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
2034 INT21_GetDBCSLeadTable(context);
2035 break;
2036 }
2037 break;
2038 case 0x64: /* OS/2 DOS BOX */
2039 INT_BARF( context, 0x21 );
2040 SET_CFLAG(context);
2041 break;
2042
2043 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2044 extern WORD WINE_LanguageId;
2045 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context));
2046 TRACE(int21,"GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2047 BX_reg(context), DX_reg(context));
2048 switch (AL_reg(context)) {
2049 case 0x01:
2050 TRACE(int21,"\tget general internationalization info\n");
2051 dataptr[0] = 0x1;
2052 *(WORD*)(dataptr+1) = 41;
2053 *(WORD*)(dataptr+3) = WINE_LanguageId;
2054 *(WORD*)(dataptr+5) = CodePage;
2055 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2056 break;
2057 case 0x06:
2058 TRACE(int21,"\tget pointer to collating sequence table\n");
2059 dataptr[0] = 0x06;
2060 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2061 CX_reg(context) = 258;/*FIXME: size of table?*/
2062 break;
2063 default:
2064 TRACE(int21,"\tunimplemented function %d\n",AL_reg(context));
2065 INT_BARF( context, 0x21 );
2066 SET_CFLAG(context);
2067 break;
2068 }
2069 break;
2070 }
2071 case 0x66: /* GLOBAL CODE PAGE TABLE */
2072 switch (AL_reg(context))
2073 {
2074 case 0x01:
2075 TRACE(int21,"GET GLOBAL CODE PAGE TABLE\n");
2076 DX_reg(context) = BX_reg(context) = CodePage;
2077 RESET_CFLAG(context);
2078 break;
2079 case 0x02:
2080 TRACE(int21,"SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2081 BX_reg(context),DX_reg(context));
2082 CodePage = BX_reg(context);
2083 RESET_CFLAG(context);
2084 break;
2085 }
2086 break;
2087
2088 case 0x67: /* SET HANDLE COUNT */
2089 TRACE(int21,"SET HANDLE COUNT to %d\n",BX_reg(context) );
2090 SetHandleCount16( BX_reg(context) );
2091 if (GetLastError()) bSetDOSExtendedError = TRUE;
2092 break;
2093
2094 case 0x68: /* "FFLUSH" - COMMIT FILE */
2095 case 0x6a: /* COMMIT FILE */
2096 TRACE(int21,"FFLUSH/COMMIT handle %d\n",BX_reg(context));
2097 bSetDOSExtendedError = (!FlushFileBuffers( FILE_GetHandle(BX_reg(context)) ));
2098 break;
2099
2100 case 0x69: /* DISK SERIAL NUMBER */
2101 switch (AL_reg(context))
2102 {
2103 case 0x00:
2104 TRACE(int21,"GET DISK SERIAL NUMBER for drive %s\n",
2105 INT21_DriveName(BL_reg(context)));
2106 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2107 else AX_reg(context) = 0;
2108 break;
2109
2110 case 0x01:
2111 TRACE(int21,"SET DISK SERIAL NUMBER for drive %s\n",
2112 INT21_DriveName(BL_reg(context)));
2113 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2114 else AX_reg(context) = 1;
2115 break;
2116 }
2117 break;
2118
2119 case 0x6C: /* Extended Open/Create*/
2120 TRACE(int21,"EXTENDED OPEN/CREATE %s\n",
2121 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDI_reg(context)));
2122 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2123 break;
2124
2125 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2126 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2127 /* not supported on anything but Win95 */
2128 TRACE(int21,"LONG FILENAME functions supported only by win95\n");
2129 SET_CFLAG(context);
2130 AL_reg(context) = 0;
2131 } else
2132 switch(AL_reg(context))
2133 {
2134 case 0x39: /* Create directory */
2135 TRACE(int21,"LONG FILENAME - MAKE DIRECTORY %s\n",
2136 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2137 bSetDOSExtendedError = (!CreateDirectoryA(
2138 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2139 EDX_reg(context) ), NULL));
2140 break;
2141 case 0x3a: /* Remove directory */
2142 TRACE(int21,"LONG FILENAME - REMOVE DIRECTORY %s\n",
2143 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2144 bSetDOSExtendedError = (!RemoveDirectoryA(
2145 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2146 EDX_reg(context) )));
2147 break;
2148 case 0x43: /* Get/Set file attributes */
2149 TRACE(int21,"LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2150 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2151 switch (BL_reg(context))
2152 {
2153 case 0x00: /* Get file attributes */
2154 TRACE(int21,"\tretrieve attributes\n");
2155 CX_reg(context) = (WORD)GetFileAttributesA(
2156 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2157 EDX_reg(context)));
2158 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2159 break;
2160 case 0x01:
2161 TRACE(int21,"\tset attributes 0x%04x\n",CX_reg(context));
2162 bSetDOSExtendedError = (!SetFileAttributesA(
2163 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2164 EDX_reg(context)),
2165 CX_reg(context) ) );
2166 break;
2167 default:
2168 FIXME(int21, "Unimplemented long file name function:\n");
2169 INT_BARF( context, 0x21 );
2170 SET_CFLAG(context);
2171 AL_reg(context) = 0;
2172 break;
2173 }
2174 break;
2175 case 0x47: /* Get current directory */
2176 TRACE(int21," LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2177 INT21_DriveName(DL_reg(context)));
2178 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2179 break;
2180
2181 case 0x4e: /* Find first file */
2182 TRACE(int21," LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2183 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2184 /* FIXME: use attributes in CX */
2185 if ((AX_reg(context) = FindFirstFile16(
2186 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
2187 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2188 EDI_reg(context))))
2189 == INVALID_HANDLE_VALUE16)
2190 bSetDOSExtendedError = TRUE;
2191 break;
2192 case 0x4f: /* Find next file */
2193 TRACE(int21,"LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2194 BX_reg(context));
2195 if (!FindNextFile16( BX_reg(context),
2196 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2197 EDI_reg(context))))
2198 bSetDOSExtendedError = TRUE;
2199 break;
2200 case 0xa1: /* Find close */
2201 TRACE(int21,"LONG FILENAME - FINDCLOSE for handle %d\n",
2202 BX_reg(context));
2203 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2204 break;
2205 case 0xa0:
2206 TRACE(int21,"LONG FILENAME - GET VOLUME INFORMATION for drive %s stub\n",
2207 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2208 break;
2209 case 0x60:
2210 switch(CL_reg(context))
2211 {
2212 case 0x01: /*Get short filename or path */
2213 if (!GetShortPathNameA
2214 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2215 ESI_reg(context)),
2216 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2217 EDI_reg(context)), 67))
2218 bSetDOSExtendedError = TRUE;
2219 else AX_reg(context) = 0;
2220 break;
2221 case 0x02: /*Get canonical long filename or path */
2222 if (!GetFullPathNameA
2223 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2224 ESI_reg(context)), 128,
2225 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2226 EDI_reg(context)),NULL))
2227 bSetDOSExtendedError = TRUE;
2228 else AX_reg(context) = 0;
2229 break;
2230 default:
2231 FIXME(int21, "Unimplemented long file name function:\n");
2232 INT_BARF( context, 0x21 );
2233 SET_CFLAG(context);
2234 AL_reg(context) = 0;
2235 break;
2236 }
2237 break;
2238 case 0x6c: /* Create or open file */
2239 TRACE(int21,"LONG FILENAME - CREATE OR OPEN FILE %s\n",
2240 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context)));
2241 /* translate Dos 7 action to Dos 6 action */
2242 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2243 break;
2244
2245 case 0x3b: /* Change directory */
2246 TRACE(int21,"LONG FILENAME - CHANGE DIRECTORY %s\n",
2247 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2248 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2249 DS_reg(context),
2250 EDX_reg(context)
2251 ))
2252 ) {
2253 SET_CFLAG(context);
2254 AL_reg(context) = GetLastError();
2255 }
2256 break;
2257 case 0x41: /* Delete file */
2258 TRACE(int21,"LONG FILENAME - DELETE FILE %s\n",
2259 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2260 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2261 DS_reg(context),
2262 EDX_reg(context))
2263 )) {
2264 SET_CFLAG(context);
2265 AL_reg(context) = GetLastError();
2266 }
2267 break;
2268 case 0x56: /* Move (rename) file */
2269 TRACE(int21,"LONG FILENAME - RENAME FILE %s to %s stub\n",
2270 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)),
2271 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context)));
2272 default:
2273 FIXME(int21, "Unimplemented long file name function:\n");
2274 INT_BARF( context, 0x21 );
2275 SET_CFLAG(context);
2276 AL_reg(context) = 0;
2277 break;
2278 }
2279 break;
2280
2281 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2282 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2283 case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */
2284 TRACE(int21,"windows95 function AX %04x\n",
2285 AX_reg(context));
2286 WARN(int21, " returning unimplemented\n");
2287 SET_CFLAG(context);
2288 AL_reg(context) = 0;
2289 break;
2290
2291 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2292 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2293 break;
2294
2295 default:
2296 INT_BARF( context, 0x21 );
2297 break;
2298
2299 } /* END OF SWITCH */
2300
2301 if( bSetDOSExtendedError ) /* set general error condition */
2302 {
2303 AX_reg(context) = GetLastError();
2304 SET_CFLAG(context);
2305 }
2306
2307 if ((EFL_reg(context) & 0x0001))
2308 TRACE(int21, "failed, error 0x%04lx\n", GetLastError() );
2309
2310 TRACE(int21, "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2311 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2312 AX_reg(context), BX_reg(context), CX_reg(context),
2313 DX_reg(context), SI_reg(context), DI_reg(context),
2314 (WORD)DS_reg(context), (WORD)ES_reg(context),
2315 EFL_reg(context));
2316 }
2317
2318 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2319 {
2320 FIXME(int21, "(DosProc=0x%08x): stub\n", (UINT)DosProc);
2321 return NULL;
2322 }
2323
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