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Starting implementation of MCI creator tasks
[wine/dcerpc.git] / msdos / int21.c
blob31435440560c2968cfbf7ebe524db9bef9d045c8
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 INT_BARF( context, 0x21 );
1153 break;
1154
1155 case 0x00: /* TERMINATE PROGRAM */
1156 TRACE(int21,"TERMINATE PROGRAM\n");
1157 ExitProcess( 0 );
1158 break;
1159
1160 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1161 TRACE(int21,"DIRECT CHARACTER INPUT WITH ECHO\n");
1162 AL_reg(context) = CONSOLE_GetCharacter();
1163 /* FIXME: no echo */
1164 break;
1165
1166 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1167 TRACE(int21, "Write Character to Standard Output\n");
1168 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1169 break;
1170
1171 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1172 if (DL_reg(context) == 0xff) {
1173 static char scan = 0;
1174 TRACE(int21, "Direct Console Input\n");
1175 if (scan) {
1176 /* return pending scancode */
1177 AL_reg(context) = scan;
1178 FL_reg(context) &= ~0x40; /* clear ZF */
1179 scan = 0;
1180 } else {
1181 char ascii;
1182 if (CONSOLE_CheckForKeystroke(&scan,&ascii)) {
1183 CONSOLE_GetKeystroke(&scan,&ascii);
1184 /* return ASCII code */
1185 AL_reg(context) = ascii;
1186 FL_reg(context) &= ~0x40; /* clear ZF */
1187 /* return scan code on next call only if ascii==0 */
1188 if (ascii) scan = 0;
1189 } else {
1190 /* nothing pending, clear everything */
1191 AL_reg(context) = 0;
1192 FL_reg(context) |= 0x40; /* set ZF */
1193 scan = 0; /* just in case */
1194 }
1195 }
1196 } else {
1197 TRACE(int21, "Direct Console Output\n");
1198 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1199 }
1200 break;
1201
1202 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1203 TRACE(int21,"DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1204 AL_reg(context) = CONSOLE_GetCharacter();
1205 break;
1206
1207 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1208 TRACE(int21,"CHARACTER INPUT WITHOUT ECHO\n");
1209 AL_reg(context) = CONSOLE_GetCharacter();
1210 break;
1211
1212 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1213 TRACE(int21,"WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1214 DS_reg(context),DX_reg(context) );
1215 {
1216 LPSTR data = CTX_SEG_OFF_TO_LIN(context,DS_reg(context),EDX_reg(context));
1217 LPSTR p = data;
1218 /* do NOT use strchr() to calculate the string length,
1219 as '\0' is valid string content, too !
1220 Maybe we should check for non-'$' strings, but DOS doesn't. */
1221 while (*p != '$') p++;
1222 _hwrite16( 1, data, (int)p - (int)data);
1223 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1224 }
1225 break;
1226
1227 case 0x0a: /* BUFFERED INPUT */
1228 {
1229 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1230 EDX_reg(context) ));
1231 int res;
1232
1233 TRACE(int21,"BUFFERED INPUT (size=%d)\n",buffer[0]);
1234 if (buffer[1])
1235 TRACE(int21,"Handle old chars in buffer!\n");
1236 res=_lread16( 0, buffer+2,buffer[0]);
1237 buffer[1]=res;
1238 if(buffer[res+1] == '\n')
1239 buffer[res+1] = '\r';
1240 break;
1241 }
1242
1243 case 0x0b: {/* GET STDIN STATUS */
1244 char x1,x2;
1245
1246 if (CONSOLE_CheckForKeystroke(&x1,&x2))
1247 AL_reg(context) = 0xff;
1248 else
1249 AL_reg(context) = 0;
1250 break;
1251 }
1252 case 0x2e: /* SET VERIFY FLAG */
1253 TRACE(int21,"SET VERIFY FLAG ignored\n");
1254 /* we cannot change the behaviour anyway, so just ignore it */
1255 break;
1256
1257 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1258 case 0x1d:
1259 case 0x1e:
1260 case 0x20:
1261 case 0x6b: /* NULL FUNCTION */
1262 AL_reg(context) = 0;
1263 break;
1264
1265 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1266 fLock(context);
1267 break;
1268
1269 case 0x0d: /* DISK BUFFER FLUSH */
1270 TRACE(int21,"DISK BUFFER FLUSH ignored\n");
1271 RESET_CFLAG(context); /* dos 6+ only */
1272 break;
1273
1274 case 0x0e: /* SELECT DEFAULT DRIVE */
1275 TRACE(int21,"SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1276 DRIVE_SetCurrentDrive( DL_reg(context) );
1277 AL_reg(context) = MAX_DOS_DRIVES;
1278 break;
1279
1280 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1281 TRACE(int21,"FIND FIRST MATCHING FILE USING FCB %p\n",
1282 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1283 if (!INT21_FindFirstFCB(context))
1284 {
1285 AL_reg(context) = 0xff;
1286 break;
1287 }
1288 /* else fall through */
1289
1290 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1291 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1292 break;
1293
1294 case 0x13: /* DELETE FILE USING FCB */
1295 DeleteFileFCB(context);
1296 break;
1297
1298 case 0x17: /* RENAME FILE USING FCB */
1299 RenameFileFCB(context);
1300 break;
1301
1302 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1303 AL_reg(context) = DRIVE_GetCurrentDrive();
1304 break;
1305
1306 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1307 {
1308 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1309 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(context),DX_reg(context));
1310 TRACE(int21, "Set DTA: %08lx\n", pTask->dta);
1311 }
1312 break;
1313
1314 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1315 DL_reg(context) = 0;
1316 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1317 break;
1318
1319 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1320 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1321 break;
1322
1323 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1324 GetDrivePB(context, DRIVE_GetCurrentDrive());
1325 break;
1326
1327 case 0x25: /* SET INTERRUPT VECTOR */
1328 INT_CtxSetHandler( context, AL_reg(context),
1329 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1330 DX_reg(context)));
1331 break;
1332
1333 case 0x29: /* PARSE FILENAME INTO FCB */
1334 INT21_ParseFileNameIntoFCB(context);
1335 break;
1336
1337 case 0x2a: /* GET SYSTEM DATE */
1338 INT21_GetSystemDate(context);
1339 break;
1340
1341 case 0x2b: /* SET SYSTEM DATE */
1342 FIXME(int21, "SetSystemDate(%02d/%02d/%04d): not allowed\n",
1343 DL_reg(context), DH_reg(context), CX_reg(context) );
1344 AL_reg(context) = 0; /* Let's pretend we succeeded */
1345 break;
1346
1347 case 0x2c: /* GET SYSTEM TIME */
1348 INT21_GetSystemTime(context);
1349 break;
1350
1351 case 0x2d: /* SET SYSTEM TIME */
1352 FIXME(int21, "SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1353 CH_reg(context), CL_reg(context),
1354 DH_reg(context), DL_reg(context) );
1355 AL_reg(context) = 0; /* Let's pretend we succeeded */
1356 break;
1357
1358 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1359 TRACE(int21,"GET DISK TRANSFER AREA ADDRESS\n");
1360 {
1361 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1362 ES_reg(context) = SELECTOROF( pTask->dta );
1363 BX_reg(context) = OFFSETOF( pTask->dta );
1364 }
1365 break;
1366
1367 case 0x30: /* GET DOS VERSION */
1368 TRACE(int21,"GET DOS VERSION %s requested\n",
1369 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1370 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1371 (HIWORD(GetVersion16()) << 8);
1372 #if 0
1373 AH_reg(context) = 0x7;
1374 AL_reg(context) = 0xA;
1375 #endif
1376
1377 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1378 CX_reg(context) = 0x0000;
1379 break;
1380
1381 case 0x31: /* TERMINATE AND STAY RESIDENT */
1382 FIXME(int21,"TERMINATE AND STAY RESIDENT stub\n");
1383 break;
1384
1385 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1386 TRACE(int21,"GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1387 INT21_DriveName( DL_reg(context)));
1388 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1389 break;
1390
1391 case 0x33: /* MULTIPLEXED */
1392 switch (AL_reg(context))
1393 {
1394 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1395 TRACE(int21,"GET CURRENT EXTENDED BREAK STATE\n");
1396 DL_reg(context) = DOSCONF_config.brk_flag;
1397 break;
1398
1399 case 0x01: /* SET EXTENDED BREAK STATE */
1400 TRACE(int21,"SET CURRENT EXTENDED BREAK STATE\n");
1401 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1402 break;
1403
1404 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1405 TRACE(int21,"GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1406 /* ugly coding in order to stay reentrant */
1407 if (DL_reg(context))
1408 {
1409 DL_reg(context) = DOSCONF_config.brk_flag;
1410 DOSCONF_config.brk_flag = 1;
1411 }
1412 else
1413 {
1414 DL_reg(context) = DOSCONF_config.brk_flag;
1415 DOSCONF_config.brk_flag = 0;
1416 }
1417 break;
1418
1419 case 0x05: /* GET BOOT DRIVE */
1420 TRACE(int21,"GET BOOT DRIVE\n");
1421 DL_reg(context) = 3;
1422 /* c: is Wine's bootdrive (a: is 1)*/
1423 break;
1424
1425 case 0x06: /* GET TRUE VERSION NUMBER */
1426 TRACE(int21,"GET TRUE VERSION NUMBER\n");
1427 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1428 (HIWORD(GetVersion16() << 8));
1429 DX_reg(context) = 0x00;
1430 break;
1431
1432 default:
1433 INT_BARF( context, 0x21 );
1434 break;
1435 }
1436 break;
1437
1438 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1439 TRACE(int21,"GET ADDRESS OF INDOS FLAG\n");
1440 if (!heap) INT21_CreateHeap();
1441 ES_reg(context) = DosHeapHandle;
1442 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1443 break;
1444
1445 case 0x35: /* GET INTERRUPT VECTOR */
1446 TRACE(int21,"GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1447 {
1448 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1449 ES_reg(context) = SELECTOROF(addr);
1450 BX_reg(context) = OFFSETOF(addr);
1451 }
1452 break;
1453
1454 case 0x36: /* GET FREE DISK SPACE */
1455 TRACE(int21,"GET FREE DISK SPACE FOR DRIVE %s\n",
1456 INT21_DriveName( DL_reg(context)));
1457 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1458 break;
1459
1460 case 0x37:
1461 {
1462 unsigned char switchchar='/';
1463 switch (AL_reg(context))
1464 {
1465 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1466 TRACE(int21,"SWITCHAR - GET SWITCH CHARACTER\n");
1467 AL_reg(context) = 0x00; /* success*/
1468 DL_reg(context) = switchchar;
1469 break;
1470 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1471 TRACE(int21,"SWITCHAR - SET SWITCH CHARACTER\n");
1472 switchchar = DL_reg(context);
1473 AL_reg(context) = 0x00; /* success*/
1474 break;
1475 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1476 INT_BARF( context, 0x21 );
1477 break;
1478 }
1479 break;
1480 }
1481
1482 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1483 TRACE(int21,"GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1484 AL_reg(context));
1485 AX_reg(context) = 0x02; /* no country support available */
1486 SET_CFLAG(context);
1487 break;
1488
1489 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1490 TRACE(int21,"MKDIR %s\n",
1491 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1492 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1493 EDX_reg(context) ), NULL));
1494 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1495 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1496 * denied), while CreateDirectory return several ones. remap some of
1497 * them. -Marcus
1498 */
1499 if (bSetDOSExtendedError) {
1500 switch (GetLastError()) {
1501 case ERROR_ALREADY_EXISTS:
1502 case ERROR_FILENAME_EXCED_RANGE:
1503 case ERROR_DISK_FULL:
1504 SetLastError(ERROR_ACCESS_DENIED);
1505 break;
1506 default: break;
1507 }
1508 }
1509 break;
1510
1511 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1512 TRACE(int21,"RMDIR %s\n",
1513 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1514 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1515 EDX_reg(context) )));
1516 break;
1517
1518 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1519 TRACE(int21,"CHDIR %s\n",
1520 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1521 bSetDOSExtendedError = !INT21_ChangeDir(context);
1522 break;
1523
1524 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1525 TRACE(int21,"CREAT flag 0x%02x %s\n",CX_reg(context),
1526 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1527 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1528 EDX_reg(context) ), CX_reg(context) );
1529 bSetDOSExtendedError = (AX_reg(context) == (WORD)HFILE_ERROR16);
1530 break;
1531
1532 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1533 TRACE(int21,"OPEN mode 0x%02x %s\n",AL_reg(context),
1534 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1535 OpenExistingFile(context);
1536 break;
1537
1538 case 0x3e: /* "CLOSE" - CLOSE FILE */
1539 TRACE(int21,"CLOSE handle %d\n",BX_reg(context));
1540 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1541 break;
1542
1543 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1544 TRACE(int21,"READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1545 DS_reg(context),DX_reg(context),CX_reg(context) );
1546 {
1547 LONG result;
1548 if (ISV86(context))
1549 result = _hread16( BX_reg(context),
1550 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1551 EDX_reg(context) ),
1552 CX_reg(context) );
1553 else
1554 result = WIN16_hread( BX_reg(context),
1555 PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1556 EDX_reg(context) ),
1557 CX_reg(context) );
1558 if (result == -1) bSetDOSExtendedError = TRUE;
1559 else AX_reg(context) = (WORD)result;
1560 }
1561 break;
1562
1563 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1564 TRACE(int21,"WRITE from %04lX:%04X to handle %d for %d byte\n",
1565 DS_reg(context),DX_reg(context),BX_reg(context),CX_reg(context) );
1566 {
1567 LONG result = _hwrite16( BX_reg(context),
1568 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1569 EDX_reg(context) ),
1570 CX_reg(context) );
1571 if (result == -1) bSetDOSExtendedError = TRUE;
1572 else AX_reg(context) = (WORD)result;
1573 }
1574 break;
1575
1576 case 0x41: /* "UNLINK" - DELETE FILE */
1577 TRACE(int21,"UNLINK%s\n",
1578 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1579 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1580 EDX_reg(context) )));
1581 break;
1582
1583 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1584 TRACE(int21,"LSEEK handle %d offset %ld from %s\n",
1585 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1586 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1587 "current file position":"end of file");
1588 {
1589 LONG status = _llseek16( BX_reg(context),
1590 MAKELONG(DX_reg(context),CX_reg(context)),
1591 AL_reg(context) );
1592 if (status == -1) bSetDOSExtendedError = TRUE;
1593 else
1594 {
1595 AX_reg(context) = LOWORD(status);
1596 DX_reg(context) = HIWORD(status);
1597 }
1598 }
1599 break;
1600
1601 case 0x43: /* FILE ATTRIBUTES */
1602 switch (AL_reg(context))
1603 {
1604 case 0x00:
1605 TRACE(int21,"GET FILE ATTRIBUTES for %s\n",
1606 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1607 AX_reg(context) = (WORD)GetFileAttributesA(
1608 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1609 EDX_reg(context)));
1610 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1611 else CX_reg(context) = AX_reg(context);
1612 break;
1613
1614 case 0x01:
1615 TRACE(int21,"SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1616 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1617 bSetDOSExtendedError =
1618 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1619 EDX_reg(context)),
1620 CX_reg(context) ));
1621 break;
1622 case 0x02:
1623 TRACE(int21,"GET COMPRESSED FILE SIZE for %s stub\n",
1624 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1625 }
1626 break;
1627
1628 case 0x44: /* IOCTL */
1629 switch (AL_reg(context))
1630 {
1631 case 0x00:
1632 ioctlGetDeviceInfo(context);
1633 break;
1634
1635 case 0x01:
1636 break;
1637 case 0x02:{
1638 const DOS_DEVICE *dev;
1639 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )) &&
1640 !strcasecmp( dev->name, "SCSIMGR$" ))
1641 {
1642 ASPI_DOS_HandleInt(context);
1643 }
1644 break;
1645 }
1646 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1647 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));*/
1648 int drive = DOS_GET_DRIVE(BL_reg(context));
1649
1650 FIXME(int21,"program tried to write to block device control channel of drive %d:\n",drive);
1651 /* for (i=0;i<CX_reg(context);i++)
1652 fprintf(stdnimp,"%02x ",dataptr[i]);
1653 fprintf(stdnimp,"\n");*/
1654 AX_reg(context)=CX_reg(context);
1655 break;
1656 }
1657 case 0x08: /* Check if drive is removable. */
1658 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1659 INT21_DriveName( BL_reg(context)));
1660 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1661 {
1662 case DRIVE_CANNOTDETERMINE:
1663 SetLastError( ERROR_INVALID_DRIVE );
1664 AX_reg(context) = ERROR_INVALID_DRIVE;
1665 SET_CFLAG(context);
1666 break;
1667 case DRIVE_REMOVABLE:
1668 AX_reg(context) = 0; /* removable */
1669 break;
1670 default:
1671 AX_reg(context) = 1; /* not removable */
1672 break;
1673 }
1674 break;
1675
1676 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1677 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1678 INT21_DriveName( BL_reg(context)));
1679 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1680 {
1681 case DRIVE_CANNOTDETERMINE:
1682 SetLastError( ERROR_INVALID_DRIVE );
1683 AX_reg(context) = ERROR_INVALID_DRIVE;
1684 SET_CFLAG(context);
1685 break;
1686 case DRIVE_REMOTE:
1687 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1688 break;
1689 default:
1690 DX_reg(context) = 0; /* FIXME: use driver attr here */
1691 break;
1692 }
1693 break;
1694
1695 case 0x0a: /* check if handle (BX) is remote */
1696 TRACE(int21,"IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1697 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1698 * not set on close
1699 */
1700 DX_reg(context) = 0;
1701 break;
1702
1703 case 0x0b: /* SET SHARING RETRY COUNT */
1704 TRACE(int21,"IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1705 CX_reg(context), DX_reg(context));
1706 if (!CX_reg(context))
1707 {
1708 AX_reg(context) = 1;
1709 SET_CFLAG(context);
1710 break;
1711 }
1712 sharing_pause = CX_reg(context);
1713 if (!DX_reg(context))
1714 sharing_retries = DX_reg(context);
1715 RESET_CFLAG(context);
1716 break;
1717
1718 case 0x0d:
1719 TRACE(int21,"IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1720 INT21_DriveName( BL_reg(context)));
1721 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1722 break;
1723
1724 case 0x0e: /* get logical drive mapping */
1725 TRACE(int21,"IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1726 INT21_DriveName( BL_reg(context)));
1727 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1728 break;
1729
1730 case 0x0F: /* Set logical drive mapping */
1731 {
1732 int drive;
1733 TRACE(int21,"IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1734 INT21_DriveName( BL_reg(context)));
1735 drive = DOS_GET_DRIVE ( BL_reg(context) );
1736 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1737 {
1738 SET_CFLAG(context);
1739 AX_reg(context) = 0x000F; /* invalid drive */
1740 }
1741 break;
1742 }
1743
1744 case 0xe0: /* Sun PC-NFS API */
1745 /* not installed */
1746 break;
1747
1748 default:
1749 INT_BARF( context, 0x21 );
1750 break;
1751 }
1752 break;
1753
1754 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1755 {
1756 HANDLE handle;
1757 TRACE(int21,"DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1758 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1759 FILE_GetHandle(BX_reg(context)),
1760 GetCurrentProcess(), &handle,
1761 0, TRUE, DUPLICATE_SAME_ACCESS )))
1762 AX_reg(context) = HFILE_ERROR16;
1763 else
1764 AX_reg(context) = FILE_AllocDosHandle(handle);
1765 break;
1766 }
1767
1768 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1769 TRACE(int21,"FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1770 BX_reg(context),CX_reg(context));
1771 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1772 break;
1773
1774 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1775 TRACE(int21,"CWD - GET CURRENT DIRECTORY for drive %s\n",
1776 INT21_DriveName( DL_reg(context)));
1777 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1778 break;
1779
1780 case 0x48: /* ALLOCATE MEMORY */
1781 TRACE(int21,"ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1782 {
1783 LPVOID *mem;
1784 if (ISV86(context))
1785 {
1786 mem= DOSMEM_GetBlock(0,(DWORD)BX_reg(context)<<4,NULL);
1787 if (mem)
1788 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1789 }
1790 else
1791 {
1792 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1793 if (mem)
1794 AX_reg(context) = (DWORD)mem&0xffff;
1795 }
1796 if (!mem)
1797 {
1798 SET_CFLAG(context);
1799 AX_reg(context) = 0x0008; /* insufficient memory */
1800 BX_reg(context) = DOSMEM_Available(0)>>4;
1801 }
1802 }
1803 break;
1804
1805 case 0x49: /* FREE MEMORY */
1806 TRACE(int21,"FREE MEMORY segment %04lX\n", ES_reg(context));
1807 {
1808 BOOL ret;
1809 if (ISV86(context))
1810 ret= DOSMEM_FreeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4));
1811 else
1812 {
1813 ret = !GlobalDOSFree16(ES_reg(context));
1814 /* If we don't reset ES_reg, we will fail in the relay code */
1815 ES_reg(context)=ret;
1816 }
1817 if (!ret)
1818 {
1819 TRACE(int21,"FREE MEMORY failed\n");
1820 SET_CFLAG(context);
1821 AX_reg(context) = 0x0009; /* memory block address invalid */
1822 }
1823 }
1824 break;
1825
1826 case 0x4a: /* RESIZE MEMORY BLOCK */
1827 TRACE(int21,"RESIZE MEMORY segment %04lX to %d paragraphs\n", ES_reg(context), BX_reg(context));
1828 if (!ISV86(context))
1829 FIXME(int21,"RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1830 {
1831 LPVOID *mem = DOSMEM_ResizeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4),
1832 BX_reg(context)<<4,NULL);
1833 if (mem)
1834 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1835 else {
1836 SET_CFLAG(context);
1837 AX_reg(context) = 0x0008; /* insufficient memory */
1838 BX_reg(context) = DOSMEM_Available(0)>>4; /* not quite right */
1839 }
1840 }
1841 break;
1842
1843 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1844 TRACE(int21,"EXEC %s\n",
1845 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context) ));
1846 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1847 EDX_reg(context) ),
1848 SW_NORMAL );
1849 if (AX_reg(context) < 32) SET_CFLAG(context);
1850 break;
1851
1852 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1853 TRACE(int21,"EXIT with return code %d\n",AL_reg(context));
1854 ExitProcess( AL_reg(context) );
1855 break;
1856
1857 case 0x4d: /* GET RETURN CODE */
1858 TRACE(int21,"GET RETURN CODE (ERRORLEVEL)\n");
1859 AX_reg(context) = 0; /* normal exit */
1860 break;
1861
1862 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1863 TRACE(int21,"FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1864 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1865 if (!INT21_FindFirst(context)) break;
1866 /* fall through */
1867
1868 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1869 TRACE(int21,"FINDNEXT\n");
1870 if (!INT21_FindNext(context))
1871 {
1872 SetLastError( ERROR_NO_MORE_FILES );
1873 AX_reg(context) = ERROR_NO_MORE_FILES;
1874 SET_CFLAG(context);
1875 }
1876 else AX_reg(context) = 0; /* OK */
1877 break;
1878 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1879 TRACE(int21, "SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1880 INT21_SetCurrentPSP(BX_reg(context));
1881 break;
1882 case 0x51: /* GET PSP ADDRESS */
1883 TRACE(int21,"GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1884 /* FIXME: should we return the original DOS PSP upon */
1885 /* Windows startup ? */
1886 BX_reg(context) = INT21_GetCurrentPSP();
1887 break;
1888 case 0x62: /* GET PSP ADDRESS */
1889 TRACE(int21,"GET CURRENT PSP ADDRESS\n");
1890 /* FIXME: should we return the original DOS PSP upon */
1891 /* Windows startup ? */
1892 BX_reg(context) = INT21_GetCurrentPSP();
1893 break;
1894
1895 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1896 TRACE(int21,"SYSVARS - GET LIST OF LISTS\n");
1897 {
1898 SEGPTR lol;
1899 lol = INT21_GetListOfLists();
1900 ES_reg(context) = HIWORD(lol);
1901 BX_reg(context) = LOWORD(lol);
1902 }
1903 break;
1904
1905 case 0x54: /* Get Verify Flag */
1906 TRACE(int21,"Get Verify Flag - Not Supported\n");
1907 AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
1908 break;
1909
1910 case 0x56: /* "RENAME" - RENAME FILE */
1911 TRACE(int21,"RENAME %s to %s\n",
1912 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1913 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context)));
1914 bSetDOSExtendedError =
1915 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1916 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context))));
1917 break;
1918
1919 case 0x57: /* FILE DATE AND TIME */
1920 switch (AL_reg(context))
1921 {
1922 case 0x00: /* Get */
1923 {
1924 FILETIME filetime;
1925 TRACE(int21,"GET FILE DATE AND TIME for handle %d\n",
1926 BX_reg(context));
1927 if (!GetFileTime( FILE_GetHandle(BX_reg(context)), NULL, NULL, &filetime ))
1928 bSetDOSExtendedError = TRUE;
1929 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1930 &CX_reg(context) );
1931 }
1932 break;
1933
1934 case 0x01: /* Set */
1935 {
1936 FILETIME filetime;
1937 TRACE(int21,"SET FILE DATE AND TIME for handle %d\n",
1938 BX_reg(context));
1939 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1940 &filetime );
1941 bSetDOSExtendedError =
1942 (!SetFileTime( FILE_GetHandle(BX_reg(context)),
1943 NULL, NULL, &filetime ));
1944 }
1945 break;
1946 }
1947 break;
1948
1949 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1950 TRACE(int21,"GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1951 AL_reg(context));
1952 switch (AL_reg(context))
1953 {
1954 case 0x00:
1955 AX_reg(context) = 1;
1956 break;
1957 case 0x02:
1958 AX_reg(context) = 0;
1959 break;
1960 case 0x01:
1961 case 0x03:
1962 break;
1963 }
1964 RESET_CFLAG(context);
1965 break;
1966
1967 case 0x5a: /* CREATE TEMPORARY FILE */
1968 TRACE(int21,"CREATE TEMPORARY FILE\n");
1969 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1970 break;
1971
1972 case 0x5b: /* CREATE NEW FILE */
1973 TRACE(int21,"CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1974 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1975 bSetDOSExtendedError = ((AX_reg(context) =
1976 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)), 0 ))
1977 == (WORD)HFILE_ERROR16);
1978 break;
1979
1980 case 0x5d: /* NETWORK */
1981 FIXME(int21,"Function 0x%04x not implemented.\n", AX_reg (context));
1982 /* Fix the following while you're at it. */
1983 SetLastError( ER_NoNetwork );
1984 bSetDOSExtendedError = TRUE;
1985 break;
1986
1987 case 0x5e:
1988 bSetDOSExtendedError = INT21_networkfunc (context);
1989 break;
1990
1991 case 0x5f: /* NETWORK */
1992 switch (AL_reg(context))
1993 {
1994 case 0x07: /* ENABLE DRIVE */
1995 TRACE(int21,"ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1996 if (!DRIVE_Enable( DL_reg(context) ))
1997 {
1998 SetLastError( ERROR_INVALID_DRIVE );
1999 bSetDOSExtendedError = TRUE;
2000 }
2001 break;
2002
2003 case 0x08: /* DISABLE DRIVE */
2004 TRACE(int21,"DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2005 if (!DRIVE_Disable( DL_reg(context) ))
2006 {
2007 SetLastError( ERROR_INVALID_DRIVE );
2008 bSetDOSExtendedError = TRUE;
2009 }
2010 break;
2011
2012 default:
2013 /* network software not installed */
2014 TRACE(int21,"NETWORK function AX=%04x not implemented\n",AX_reg(context));
2015 SetLastError( ER_NoNetwork );
2016 bSetDOSExtendedError = TRUE;
2017 break;
2018 }
2019 break;
2020
2021 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
2022 TRACE(int21,"TRUENAME %s\n",
2023 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),ESI_reg(context)));
2024 {
2025 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2026 ESI_reg(context)), 128,
2027 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2028 EDI_reg(context)),NULL))
2029 bSetDOSExtendedError = TRUE;
2030 else AX_reg(context) = 0;
2031 }
2032 break;
2033
2034 case 0x61: /* UNUSED */
2035 case 0x63: /* misc. language support */
2036 switch (AL_reg(context)) {
2037 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
2038 INT21_GetDBCSLeadTable(context);
2039 break;
2040 }
2041 break;
2042 case 0x64: /* OS/2 DOS BOX */
2043 INT_BARF( context, 0x21 );
2044 SET_CFLAG(context);
2045 break;
2046
2047 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2048 extern WORD WINE_LanguageId;
2049 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context));
2050 TRACE(int21,"GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2051 BX_reg(context), DX_reg(context));
2052 switch (AL_reg(context)) {
2053 case 0x01:
2054 TRACE(int21,"\tget general internationalization info\n");
2055 dataptr[0] = 0x1;
2056 *(WORD*)(dataptr+1) = 41;
2057 *(WORD*)(dataptr+3) = WINE_LanguageId;
2058 *(WORD*)(dataptr+5) = CodePage;
2059 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2060 break;
2061 case 0x06:
2062 TRACE(int21,"\tget pointer to collating sequence table\n");
2063 dataptr[0] = 0x06;
2064 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2065 CX_reg(context) = 258;/*FIXME: size of table?*/
2066 break;
2067 default:
2068 TRACE(int21,"\tunimplemented function %d\n",AL_reg(context));
2069 INT_BARF( context, 0x21 );
2070 SET_CFLAG(context);
2071 break;
2072 }
2073 break;
2074 }
2075 case 0x66: /* GLOBAL CODE PAGE TABLE */
2076 switch (AL_reg(context))
2077 {
2078 case 0x01:
2079 TRACE(int21,"GET GLOBAL CODE PAGE TABLE\n");
2080 DX_reg(context) = BX_reg(context) = CodePage;
2081 RESET_CFLAG(context);
2082 break;
2083 case 0x02:
2084 TRACE(int21,"SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2085 BX_reg(context),DX_reg(context));
2086 CodePage = BX_reg(context);
2087 RESET_CFLAG(context);
2088 break;
2089 }
2090 break;
2091
2092 case 0x67: /* SET HANDLE COUNT */
2093 TRACE(int21,"SET HANDLE COUNT to %d\n",BX_reg(context) );
2094 SetHandleCount16( BX_reg(context) );
2095 if (GetLastError()) bSetDOSExtendedError = TRUE;
2096 break;
2097
2098 case 0x68: /* "FFLUSH" - COMMIT FILE */
2099 case 0x6a: /* COMMIT FILE */
2100 TRACE(int21,"FFLUSH/COMMIT handle %d\n",BX_reg(context));
2101 bSetDOSExtendedError = (!FlushFileBuffers( FILE_GetHandle(BX_reg(context)) ));
2102 break;
2103
2104 case 0x69: /* DISK SERIAL NUMBER */
2105 switch (AL_reg(context))
2106 {
2107 case 0x00:
2108 TRACE(int21,"GET DISK SERIAL NUMBER for drive %s\n",
2109 INT21_DriveName(BL_reg(context)));
2110 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2111 else AX_reg(context) = 0;
2112 break;
2113
2114 case 0x01:
2115 TRACE(int21,"SET DISK SERIAL NUMBER for drive %s\n",
2116 INT21_DriveName(BL_reg(context)));
2117 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2118 else AX_reg(context) = 1;
2119 break;
2120 }
2121 break;
2122
2123 case 0x6C: /* Extended Open/Create*/
2124 TRACE(int21,"EXTENDED OPEN/CREATE %s\n",
2125 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDI_reg(context)));
2126 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2127 break;
2128
2129 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2130 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2131 /* not supported on anything but Win95 */
2132 TRACE(int21,"LONG FILENAME functions supported only by win95\n");
2133 SET_CFLAG(context);
2134 AL_reg(context) = 0;
2135 } else
2136 switch(AL_reg(context))
2137 {
2138 case 0x39: /* Create directory */
2139 TRACE(int21,"LONG FILENAME - MAKE DIRECTORY %s\n",
2140 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2141 bSetDOSExtendedError = (!CreateDirectoryA(
2142 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2143 EDX_reg(context) ), NULL));
2144 break;
2145 case 0x3a: /* Remove directory */
2146 TRACE(int21,"LONG FILENAME - REMOVE DIRECTORY %s\n",
2147 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2148 bSetDOSExtendedError = (!RemoveDirectoryA(
2149 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2150 EDX_reg(context) )));
2151 break;
2152 case 0x43: /* Get/Set file attributes */
2153 TRACE(int21,"LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2154 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2155 switch (BL_reg(context))
2156 {
2157 case 0x00: /* Get file attributes */
2158 TRACE(int21,"\tretrieve attributes\n");
2159 CX_reg(context) = (WORD)GetFileAttributesA(
2160 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2161 EDX_reg(context)));
2162 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2163 break;
2164 case 0x01:
2165 TRACE(int21,"\tset attributes 0x%04x\n",CX_reg(context));
2166 bSetDOSExtendedError = (!SetFileAttributesA(
2167 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2168 EDX_reg(context)),
2169 CX_reg(context) ) );
2170 break;
2171 default:
2172 FIXME(int21, "Unimplemented long file name function:\n");
2173 INT_BARF( context, 0x21 );
2174 SET_CFLAG(context);
2175 AL_reg(context) = 0;
2176 break;
2177 }
2178 break;
2179 case 0x47: /* Get current directory */
2180 TRACE(int21," LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2181 INT21_DriveName(DL_reg(context)));
2182 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2183 break;
2184
2185 case 0x4e: /* Find first file */
2186 TRACE(int21," LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2187 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2188 /* FIXME: use attributes in CX */
2189 if ((AX_reg(context) = FindFirstFile16(
2190 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
2191 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2192 EDI_reg(context))))
2193 == INVALID_HANDLE_VALUE16)
2194 bSetDOSExtendedError = TRUE;
2195 break;
2196 case 0x4f: /* Find next file */
2197 TRACE(int21,"LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2198 BX_reg(context));
2199 if (!FindNextFile16( BX_reg(context),
2200 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2201 EDI_reg(context))))
2202 bSetDOSExtendedError = TRUE;
2203 break;
2204 case 0xa1: /* Find close */
2205 TRACE(int21,"LONG FILENAME - FINDCLOSE for handle %d\n",
2206 BX_reg(context));
2207 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2208 break;
2209 case 0xa0:
2210 TRACE(int21,"LONG FILENAME - GET VOLUME INFORMATION for drive %s stub\n",
2211 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2212 break;
2213 case 0x60:
2214 switch(CL_reg(context))
2215 {
2216 case 0x01: /*Get short filename or path */
2217 if (!GetShortPathNameA
2218 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2219 ESI_reg(context)),
2220 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2221 EDI_reg(context)), 67))
2222 bSetDOSExtendedError = TRUE;
2223 else AX_reg(context) = 0;
2224 break;
2225 case 0x02: /*Get canonical long filename or path */
2226 if (!GetFullPathNameA
2227 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2228 ESI_reg(context)), 128,
2229 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2230 EDI_reg(context)),NULL))
2231 bSetDOSExtendedError = TRUE;
2232 else AX_reg(context) = 0;
2233 break;
2234 default:
2235 FIXME(int21, "Unimplemented long file name function:\n");
2236 INT_BARF( context, 0x21 );
2237 SET_CFLAG(context);
2238 AL_reg(context) = 0;
2239 break;
2240 }
2241 break;
2242 case 0x6c: /* Create or open file */
2243 TRACE(int21,"LONG FILENAME - CREATE OR OPEN FILE %s\n",
2244 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context)));
2245 /* translate Dos 7 action to Dos 6 action */
2246 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2247 break;
2248
2249 case 0x3b: /* Change directory */
2250 TRACE(int21,"LONG FILENAME - CHANGE DIRECTORY %s\n",
2251 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2252 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2253 DS_reg(context),
2254 EDX_reg(context)
2255 ))
2256 ) {
2257 SET_CFLAG(context);
2258 AL_reg(context) = GetLastError();
2259 }
2260 break;
2261 case 0x41: /* Delete file */
2262 TRACE(int21,"LONG FILENAME - DELETE FILE %s\n",
2263 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2264 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2265 DS_reg(context),
2266 EDX_reg(context))
2267 )) {
2268 SET_CFLAG(context);
2269 AL_reg(context) = GetLastError();
2270 }
2271 break;
2272 case 0x56: /* Move (rename) file */
2273 TRACE(int21,"LONG FILENAME - RENAME FILE %s to %s stub\n",
2274 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)),
2275 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context)));
2276 default:
2277 FIXME(int21, "Unimplemented long file name function:\n");
2278 INT_BARF( context, 0x21 );
2279 SET_CFLAG(context);
2280 AL_reg(context) = 0;
2281 break;
2282 }
2283 break;
2284
2285 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2286 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2287 case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */
2288 TRACE(int21,"windows95 function AX %04x\n",
2289 AX_reg(context));
2290 WARN(int21, " returning unimplemented\n");
2291 SET_CFLAG(context);
2292 AL_reg(context) = 0;
2293 break;
2294
2295 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2296 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2297 break;
2298
2299 default:
2300 INT_BARF( context, 0x21 );
2301 break;
2302
2303 } /* END OF SWITCH */
2304
2305 if( bSetDOSExtendedError ) /* set general error condition */
2306 {
2307 AX_reg(context) = GetLastError();
2308 SET_CFLAG(context);
2309 }
2310
2311 if ((EFL_reg(context) & 0x0001))
2312 TRACE(int21, "failed, error 0x%04lx\n", GetLastError() );
2313
2314 TRACE(int21, "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2315 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2316 AX_reg(context), BX_reg(context), CX_reg(context),
2317 DX_reg(context), SI_reg(context), DI_reg(context),
2318 (WORD)DS_reg(context), (WORD)ES_reg(context),
2319 EFL_reg(context));
2320 }
2321
2322 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2323 {
2324 FIXME(int21, "(DosProc=0x%08x): stub\n", (UINT)DosProc);
2325 return NULL;
2326 }
2327
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