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Added timeout to critical section waiting.
[wine/multimedia.git] / msdos / int21.c
blob3295d235389e1b1acb44d73150e5aca2098354a9
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 case 0x72:
349 /* Trail on error implementation */
350 AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_CANNOTDETERMINE ? 0x0f : 0x01;
351 SET_CFLAG(context); /* Seems to be set all the time */
352 break;
353
354 default:
355 INT_BARF( context, 0x21 );
356 }
357 return FALSE;
358 }
359
360 static void INT21_ParseFileNameIntoFCB( CONTEXT *context )
361 {
362 char *filename =
363 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
364 char *fcb =
365 CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context) );
366 char *buffer, *s, *d;
367
368 AL_reg(context) = 0xff; /* failed */
369
370 TRACE(int21, "filename: '%s'\n", filename);
371
372 buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
373
374 s = filename;
375 d = buffer;
376 while (*s)
377 {
378 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
379 *d++ = *s++;
380 else
381 break;
382 }
383
384 *d = '\0';
385 DOSFS_ToDosFCBFormat(buffer, fcb + 1);
386 *fcb = 0;
387 TRACE(int21, "FCB: '%s'\n", ((CHAR *)fcb + 1));
388
389 HeapFree( GetProcessHeap(), 0, buffer);
390
391 AL_reg(context) =
392 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
393
394 /* point DS:SI to first unparsed character */
395 SI_reg(context) += (int)s - (int)filename;
396 }
397
398 static void INT21_GetSystemDate( CONTEXT *context )
399 {
400 SYSTEMTIME systime;
401 GetLocalTime( &systime );
402 CX_reg(context) = systime.wYear;
403 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
404 AX_reg(context) = systime.wDayOfWeek;
405 }
406
407 static void INT21_GetSystemTime( CONTEXT *context )
408 {
409 SYSTEMTIME systime;
410 GetLocalTime( &systime );
411 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
412 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
413 }
414
415 /* Many calls translate a drive argument like this:
416 drive number (00h = default, 01h = A:, etc)
417 */
418 static char drivestring[]="default";
419
420 char *INT21_DriveName(int drive)
421 {
422
423 if(drive >0)
424 {
425 drivestring[0]= (unsigned char)drive + '@';
426 drivestring[1]=':';
427 drivestring[2]=0;
428 }
429 return drivestring;
430 }
431 static BOOL INT21_CreateFile( CONTEXT *context )
432 {
433 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
434 EDX_reg(context) ), CX_reg(context) );
435 return (AX_reg(context) == (WORD)HFILE_ERROR16);
436 }
437
438 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
439 {
440 /* Mask off all flags not explicitly allowed by the doc */
441 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
442 return FILE_AllocDosHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
443 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
444 CREATE_NEW, attr, -1 ));
445 }
446
447 static void OpenExistingFile( CONTEXT *context )
448 {
449 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
450 AL_reg(context) );
451 if (AX_reg(context) == (WORD)HFILE_ERROR16)
452 {
453 AX_reg(context) = GetLastError();
454 SET_CFLAG(context);
455 }
456 }
457
458 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT *context )
459 {
460 BOOL bExtendedError = FALSE;
461 BYTE action = DL_reg(context);
462
463 /* Shuffle arguments to call OpenExistingFile */
464 AL_reg(context) = BL_reg(context);
465 DX_reg(context) = SI_reg(context);
466 /* BX,CX and DX should be preserved */
467 OpenExistingFile(context);
468
469 if ((EFL_reg(context) & 0x0001) == 0) /* File exists */
470 {
471 UINT16 uReturnCX = 0;
472
473 /* Now decide what do do */
474
475 if ((action & 0x07) == 0)
476 {
477 _lclose16( AX_reg(context) );
478 AX_reg(context) = 0x0050; /*File exists*/
479 SET_CFLAG(context);
480 WARN(int21, "extended open/create: failed because file exists \n");
481 }
482 else if ((action & 0x07) == 2)
483 {
484 /* Truncate it, but first check if opened for write */
485 if ((BL_reg(context) & 0x0007)== 0)
486 {
487 _lclose16( AX_reg(context) );
488 WARN(int21, "extended open/create: failed, trunc on ro file\n");
489 AX_reg(context) = 0x000C; /*Access code invalid*/
490 SET_CFLAG(context);
491 }
492 else
493 {
494 TRACE(int21, "extended open/create: Closing before truncate\n");
495 if (_lclose16( AX_reg(context) ))
496 {
497 WARN(int21, "extended open/create: close before trunc failed\n");
498 AX_reg(context) = 0x0019; /*Seek Error*/
499 CX_reg(context) = 0;
500 SET_CFLAG(context);
501 }
502 /* Shuffle arguments to call CreateFile */
503
504 TRACE(int21, "extended open/create: Truncating\n");
505 AL_reg(context) = BL_reg(context);
506 /* CX is still the same */
507 DX_reg(context) = SI_reg(context);
508 bExtendedError = INT21_CreateFile(context);
509
510 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
511 {
512 WARN(int21, "extended open/create: trunc failed\n");
513 return bExtendedError;
514 }
515 uReturnCX = 0x3;
516 }
517 }
518 else uReturnCX = 0x1;
519
520 CX_reg(context) = uReturnCX;
521 }
522 else /* file does not exist */
523 {
524 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
525 if ((action & 0xF0)== 0)
526 {
527 CX_reg(context) = 0;
528 SET_CFLAG(context);
529 WARN(int21, "extended open/create: failed, file dosen't exist\n");
530 }
531 else
532 {
533 /* Shuffle arguments to call CreateFile */
534 TRACE(int21, "extended open/create: Creating\n");
535 AL_reg(context) = BL_reg(context);
536 /* CX should still be the same */
537 DX_reg(context) = SI_reg(context);
538 bExtendedError = INT21_CreateFile(context);
539 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
540 {
541 WARN(int21, "extended open/create: create failed\n");
542 return bExtendedError;
543 }
544 CX_reg(context) = 2;
545 }
546 }
547
548 return bExtendedError;
549 }
550
551
552 static BOOL INT21_ChangeDir( CONTEXT *context )
553 {
554 int drive;
555 char *dirname = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));
556
557 TRACE(int21,"changedir %s\n", dirname);
558 if (dirname[0] && (dirname[1] == ':'))
559 {
560 drive = toupper(dirname[0]) - 'A';
561 dirname += 2;
562 }
563 else drive = DRIVE_GetCurrentDrive();
564 return DRIVE_Chdir( drive, dirname );
565 }
566
567
568 static int INT21_FindFirst( CONTEXT *context )
569 {
570 char *p;
571 const char *path;
572 DOS_FULL_NAME full_name;
573 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
574
575 path = (const char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
576 dta->unixPath = NULL;
577 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
578 {
579 AX_reg(context) = GetLastError();
580 SET_CFLAG(context);
581 return 0;
582 }
583 dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
584 p = strrchr( dta->unixPath, '/' );
585 *p = '\0';
586
587 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
588 * (doesn't matter as it is set below anyway)
589 */
590 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
591 {
592 HeapFree( GetProcessHeap(), 0, dta->unixPath );
593 dta->unixPath = NULL;
594 SetLastError( ERROR_FILE_NOT_FOUND );
595 AX_reg(context) = ERROR_FILE_NOT_FOUND;
596 SET_CFLAG(context);
597 return 0;
598 }
599 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
600 : DRIVE_GetCurrentDrive();
601 dta->count = 0;
602 dta->search_attr = CL_reg(context);
603 return 1;
604 }
605
606
607 static int INT21_FindNext( CONTEXT *context )
608 {
609 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
610 WIN32_FIND_DATAA entry;
611 int count;
612
613 if (!dta->unixPath) return 0;
614 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
615 dta->search_attr, dta->count, &entry )))
616 {
617 HeapFree( GetProcessHeap(), 0, dta->unixPath );
618 dta->unixPath = NULL;
619 return 0;
620 }
621 if ((int)dta->count + count > 0xffff)
622 {
623 WARN(int21, "Too many directory entries in %s\n", dta->unixPath );
624 HeapFree( GetProcessHeap(), 0, dta->unixPath );
625 dta->unixPath = NULL;
626 return 0;
627 }
628 dta->count += count;
629 dta->fileattr = entry.dwFileAttributes;
630 dta->filesize = entry.nFileSizeLow;
631 FileTimeToDosDateTime( &entry.ftLastWriteTime,
632 &dta->filedate, &dta->filetime );
633 strcpy( dta->filename, entry.cAlternateFileName );
634 if (!memchr(dta->mask,'?',11)) {
635 /* wildcardless search, release resources in case no findnext will
636 * be issued, and as a workaround in case file creation messes up
637 * findnext, as sometimes happens with pkunzip */
638 HeapFree( GetProcessHeap(), 0, dta->unixPath );
639 dta->unixPath = NULL;
640 }
641 return 1;
642 }
643
644
645 static BOOL INT21_CreateTempFile( CONTEXT *context )
646 {
647 static int counter = 0;
648 char *name = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context) );
649 char *p = name + strlen(name);
650
651 /* despite what Ralf Brown says, some programs seem to call without
652 * ending backslash (DOS accepts that, so we accept it too) */
653 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
654
655 for (;;)
656 {
657 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
658 counter = (counter + 1) % 1000;
659
660 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
661 {
662 TRACE(int21, "created %s\n", name );
663 return TRUE;
664 }
665 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
666 }
667 }
668
669
670 static BOOL INT21_GetCurrentDirectory( CONTEXT *context )
671 {
672 int drive = DOS_GET_DRIVE( DL_reg(context) );
673 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
674
675 if (!DRIVE_IsValid(drive))
676 {
677 SetLastError( ERROR_INVALID_DRIVE );
678 return FALSE;
679 }
680 lstrcpynA( ptr, DRIVE_GetDosCwd(drive), 64 );
681 AX_reg(context) = 0x0100; /* success return code */
682 return TRUE;
683 }
684
685
686 static void INT21_GetDBCSLeadTable( CONTEXT *context )
687 {
688 if (heap || INT21_CreateHeap())
689 { /* return an empty table just as DOS 4.0+ does */
690 DS_reg(context) = DosHeapHandle;
691 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
692 }
693 else
694 {
695 AX_reg(context) = 0x1; /* error */
696 SET_CFLAG(context);
697 }
698 }
699
700
701 static int INT21_GetDiskSerialNumber( CONTEXT *context )
702 {
703 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
704 int drive = DOS_GET_DRIVE( BL_reg(context) );
705
706 if (!DRIVE_IsValid(drive))
707 {
708 SetLastError( ERROR_INVALID_DRIVE );
709 return 0;
710 }
711
712 *(WORD *)dataptr = 0;
713 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
714 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
715 strncpy(dataptr + 0x11, "FAT16 ", 8);
716 return 1;
717 }
718
719
720 static int INT21_SetDiskSerialNumber( CONTEXT *context )
721 {
722 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
723 int drive = DOS_GET_DRIVE( BL_reg(context) );
724
725 if (!DRIVE_IsValid(drive))
726 {
727 SetLastError( ERROR_INVALID_DRIVE );
728 return 0;
729 }
730
731 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
732 return 1;
733 }
734
735
736 /* microsoft's programmers should be shot for using CP/M style int21
737 calls in Windows for Workgroup's winfile.exe */
738
739 static int INT21_FindFirstFCB( CONTEXT *context )
740 {
741 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
742 FINDFILE_FCB *pFCB;
743 LPCSTR root, cwd;
744 int drive;
745
746 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
747 else pFCB = (FINDFILE_FCB *)fcb;
748 drive = DOS_GET_DRIVE( pFCB->drive );
749 if (!DRIVE_IsValid( drive )) return 0;
750 root = DRIVE_GetRoot( drive );
751 cwd = DRIVE_GetUnixCwd( drive );
752 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
753 strlen(root)+strlen(cwd)+2 );
754 if (!pFCB->unixPath) return 0;
755 strcpy( pFCB->unixPath, root );
756 strcat( pFCB->unixPath, "/" );
757 strcat( pFCB->unixPath, cwd );
758 pFCB->count = 0;
759 return 1;
760 }
761
762
763 static int INT21_FindNextFCB( CONTEXT *context )
764 {
765 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
766 FINDFILE_FCB *pFCB;
767 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
768 WIN32_FIND_DATAA entry;
769 BYTE attr;
770 int count;
771
772 if (*fcb == 0xff) /* extended FCB ? */
773 {
774 attr = fcb[6];
775 pFCB = (FINDFILE_FCB *)(fcb + 7);
776 }
777 else
778 {
779 attr = 0;
780 pFCB = (FINDFILE_FCB *)fcb;
781 }
782
783 if (!pFCB->unixPath) return 0;
784 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
785 DOS_GET_DRIVE( pFCB->drive ), attr,
786 pFCB->count, &entry )))
787 {
788 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
789 pFCB->unixPath = NULL;
790 return 0;
791 }
792 pFCB->count += count;
793
794 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
795 *(BYTE *)pResult = 0xff;
796 (BYTE *)pResult +=6; /* leave reserved field behind */
797 *(BYTE *)pResult = entry.dwFileAttributes;
798 ((BYTE *)pResult)++;
799 }
800 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
801 ((BYTE *)pResult)++;
802 pResult->fileattr = entry.dwFileAttributes;
803 pResult->cluster = 0; /* what else? */
804 pResult->filesize = entry.nFileSizeLow;
805 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
806 FileTimeToDosDateTime( &entry.ftLastWriteTime,
807 &pResult->filedate, &pResult->filetime );
808
809 /* Convert file name to FCB format */
810
811 memset( pResult->filename, ' ', sizeof(pResult->filename) );
812 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
813 else if (!strcmp( entry.cAlternateFileName, ".." ))
814 pResult->filename[0] = pResult->filename[1] = '.';
815 else
816 {
817 char *p = strrchr( entry.cAlternateFileName, '.' );
818 if (p && p[1] && (p != entry.cAlternateFileName))
819 {
820 memcpy( pResult->filename, entry.cAlternateFileName,
821 MIN( (p - entry.cAlternateFileName), 8 ) );
822 memcpy( pResult->filename + 8, p + 1, MIN( strlen(p), 3 ) );
823 }
824 else
825 memcpy( pResult->filename, entry.cAlternateFileName,
826 MIN( strlen(entry.cAlternateFileName), 8 ) );
827 }
828 return 1;
829 }
830
831
832 static void DeleteFileFCB( CONTEXT *context )
833 {
834 FIXME(int21, "(%p): stub\n", context);
835 }
836
837 static void RenameFileFCB( CONTEXT *context )
838 {
839 FIXME(int21, "(%p): stub\n", context);
840 }
841
842
843
844 static void fLock( CONTEXT * context )
845 {
846
847 switch ( AX_reg(context) & 0xff )
848 {
849 case 0x00: /* LOCK */
850 TRACE(int21,"lock handle %d offset %ld length %ld\n",
851 BX_reg(context),
852 MAKELONG(DX_reg(context),CX_reg(context)),
853 MAKELONG(DI_reg(context),SI_reg(context))) ;
854 if (!LockFile(FILE_GetHandle(BX_reg(context)),
855 MAKELONG(DX_reg(context),CX_reg(context)), 0,
856 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
857 AX_reg(context) = GetLastError();
858 SET_CFLAG(context);
859 }
860 break;
861
862 case 0x01: /* UNLOCK */
863 TRACE(int21,"unlock handle %d offset %ld length %ld\n",
864 BX_reg(context),
865 MAKELONG(DX_reg(context),CX_reg(context)),
866 MAKELONG(DI_reg(context),SI_reg(context))) ;
867 if (!UnlockFile(FILE_GetHandle(BX_reg(context)),
868 MAKELONG(DX_reg(context),CX_reg(context)), 0,
869 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
870 AX_reg(context) = GetLastError();
871 SET_CFLAG(context);
872 }
873 return;
874 default:
875 AX_reg(context) = 0x0001;
876 SET_CFLAG(context);
877 return;
878 }
879 }
880
881 static BOOL
882 INT21_networkfunc (CONTEXT *context)
883 {
884 switch (AL_reg(context)) {
885 case 0x00: /* Get machine name. */
886 {
887 char *dst = CTX_SEG_OFF_TO_LIN (context,DS_reg(context),EDX_reg(context));
888 TRACE(int21, "getting machine name to %p\n", dst);
889 if (gethostname (dst, 15))
890 {
891 WARN(int21,"failed!\n");
892 SetLastError( ER_NoNetwork );
893 return TRUE;
894 } else {
895 int len = strlen (dst);
896 while (len < 15)
897 dst[len++] = ' ';
898 dst[15] = 0;
899 CH_reg(context) = 1; /* Valid */
900 CL_reg(context) = 1; /* NETbios number??? */
901 TRACE(int21, "returning %s\n", debugstr_an (dst, 16));
902 return FALSE;
903 }
904 }
905
906 default:
907 SetLastError( ER_NoNetwork );
908 return TRUE;
909 }
910 }
911
912 static void INT21_SetCurrentPSP(WORD psp)
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 pModule->lpDosTask->psp_seg = psp;
921 else
922 #endif
923 ERR(int21, "Cannot change PSP for non-DOS task!\n");
924 }
925
926 static WORD INT21_GetCurrentPSP()
927 {
928 #ifdef MZ_SUPPORTED
929 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
930 NE_MODULE *pModule = pTask ? NE_GetPtr( pTask->hModule ) : NULL;
931
932 GlobalUnlock16( GetCurrentTask() );
933 if (pModule->lpDosTask)
934 return pModule->lpDosTask->psp_seg;
935 else
936 #endif
937 return GetCurrentPDB16();
938 }
939
940
941 SEGPTR INT21_GetListOfLists()
942 {
943 static DOS_LISTOFLISTS *LOL;
944 static SEGPTR seg_LOL;
945
946 /*
947 Output of DOS 6.22:
948
949 0133:0020 6A 13-33 01 CC 00 33 01 59 00 j.3...3.Y.
950 0133:0030 70 00 00 00 72 02 00 02-6D 00 33 01 00 00 2E 05 p...r...m.3.....
951 0133:0040 00 00 FC 04 00 00 03 08-92 21 11 E0 04 80 C6 0D .........!......
952 0133:0050 CC 0D 4E 55 4C 20 20 20-20 20 00 00 00 00 00 00 ..NUL ......
953 0133:0060 00 4B BA C1 06 14 00 00-00 03 01 00 04 70 CE FF .K...........p..
954 0133:0070 FF 00 00 00 00 00 00 00-00 01 00 00 0D 05 00 00 ................
955 0133:0080 00 FF FF 00 00 00 00 FE-00 00 F8 03 FF 9F 70 02 ..............p.
956 0133:0090 D0 44 C8 FD D4 44 C8 FD-D4 44 C8 FD D0 44 C8 FD .D...D...D...D..
957 0133:00A0 D0 44 C8 FD D0 44 .D...D
958 */
959 if (!LOL) {
960 LOL = SEGPTR_ALLOC(sizeof(DOS_LISTOFLISTS));
961
962 LOL->CX_Int21_5e01 = 0x0;
963 LOL->LRU_count_FCB_cache = 0x0;
964 LOL->LRU_count_FCB_open = 0x0;
965 LOL->OEM_func_handler = -1; /* not available */
966 LOL->INT21_offset = 0x0;
967 LOL->sharing_retry_count = sharing_retries; /* default value: 3 */
968 LOL->sharing_retry_delay = sharing_pause; /* default value: 1 */
969 LOL->ptr_disk_buf = 0x0;
970 LOL->offs_unread_CON = 0x0;
971 LOL->seg_first_MCB = 0x0;
972 LOL->ptr_first_DPB = 0x0;
973 LOL->ptr_first_SysFileTable = 0x0;
974 LOL->ptr_clock_dev_hdr = 0x0;
975 LOL->ptr_CON_dev_hdr = 0x0;
976 LOL->max_byte_per_sec = 512;
977 LOL->ptr_disk_buf_info = 0x0;
978 LOL->ptr_array_CDS = 0x0;
979 LOL->ptr_sys_FCB = 0x0;
980 LOL->nr_protect_FCB = 0x0;
981 LOL->nr_block_dev = 0x0;
982 LOL->nr_avail_drive_letters = 26; /* A - Z */
983 LOL->nr_drives_JOINed = 0x0;
984 LOL->ptr_spec_prg_names = 0x0;
985 LOL->ptr_SETVER_prg_list = 0x0; /* no SETVER list */
986 LOL->DOS_HIGH_A20_func_offs = 0x0;
987 LOL->PSP_last_exec = 0x0;
988 LOL->BUFFERS_val = 99; /* maximum: 99 */
989 LOL->BUFFERS_nr_lookahead = 8; /* maximum: 8 */
990 LOL->boot_drive = 3; /* C: */
991 LOL->flag_DWORD_moves = 0x01; /* i386+ */
992 LOL->size_extended_mem = 0xf000; /* very high value */
993 }
994 if (!seg_LOL) seg_LOL = SEGPTR_GET(LOL);
995 return seg_LOL+(WORD)&((DOS_LISTOFLISTS*)0)->ptr_first_DPB;
996 }
997
998
999 /***********************************************************************
1000 * INT21_GetExtendedError
1001 */
1002 static void INT21_GetExtendedError( CONTEXT *context )
1003 {
1004 BYTE class, action, locus;
1005 WORD error = GetLastError();
1006
1007 switch(error)
1008 {
1009 case ERROR_SUCCESS:
1010 class = action = locus = 0;
1011 break;
1012 case ERROR_DIR_NOT_EMPTY:
1013 class = EC_Exists;
1014 action = SA_Ignore;
1015 locus = EL_Disk;
1016 break;
1017 case ERROR_ACCESS_DENIED:
1018 class = EC_AccessDenied;
1019 action = SA_Abort;
1020 locus = EL_Disk;
1021 break;
1022 case ERROR_CANNOT_MAKE:
1023 class = EC_AccessDenied;
1024 action = SA_Abort;
1025 locus = EL_Unknown;
1026 break;
1027 case ERROR_DISK_FULL:
1028 case ERROR_HANDLE_DISK_FULL:
1029 class = EC_MediaError;
1030 action = SA_Abort;
1031 locus = EL_Disk;
1032 break;
1033 case ERROR_FILE_EXISTS:
1034 case ERROR_ALREADY_EXISTS:
1035 class = EC_Exists;
1036 action = SA_Abort;
1037 locus = EL_Disk;
1038 break;
1039 case ERROR_FILE_NOT_FOUND:
1040 class = EC_NotFound;
1041 action = SA_Abort;
1042 locus = EL_Disk;
1043 break;
1044 case ER_GeneralFailure:
1045 class = EC_SystemFailure;
1046 action = SA_Abort;
1047 locus = EL_Unknown;
1048 break;
1049 case ERROR_INVALID_DRIVE:
1050 class = EC_MediaError;
1051 action = SA_Abort;
1052 locus = EL_Disk;
1053 break;
1054 case ERROR_INVALID_HANDLE:
1055 class = EC_ProgramError;
1056 action = SA_Abort;
1057 locus = EL_Disk;
1058 break;
1059 case ERROR_LOCK_VIOLATION:
1060 class = EC_AccessDenied;
1061 action = SA_Abort;
1062 locus = EL_Disk;
1063 break;
1064 case ERROR_NO_MORE_FILES:
1065 class = EC_MediaError;
1066 action = SA_Abort;
1067 locus = EL_Disk;
1068 break;
1069 case ER_NoNetwork:
1070 class = EC_NotFound;
1071 action = SA_Abort;
1072 locus = EL_Network;
1073 break;
1074 case ERROR_NOT_ENOUGH_MEMORY:
1075 class = EC_OutOfResource;
1076 action = SA_Abort;
1077 locus = EL_Memory;
1078 break;
1079 case ERROR_PATH_NOT_FOUND:
1080 class = EC_NotFound;
1081 action = SA_Abort;
1082 locus = EL_Disk;
1083 break;
1084 case ERROR_SEEK:
1085 class = EC_NotFound;
1086 action = SA_Ignore;
1087 locus = EL_Disk;
1088 break;
1089 case ERROR_SHARING_VIOLATION:
1090 class = EC_Temporary;
1091 action = SA_Retry;
1092 locus = EL_Disk;
1093 break;
1094 case ERROR_TOO_MANY_OPEN_FILES:
1095 class = EC_ProgramError;
1096 action = SA_Abort;
1097 locus = EL_Disk;
1098 break;
1099 default:
1100 FIXME( int21, "Unknown error %d\n", error );
1101 class = EC_SystemFailure;
1102 action = SA_Abort;
1103 locus = EL_Unknown;
1104 break;
1105 }
1106 TRACE( int21, "GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1107 error, class, action, locus );
1108 AX_reg(context) = error;
1109 BH_reg(context) = class;
1110 BL_reg(context) = action;
1111 CH_reg(context) = locus;
1112 }
1113
1114 /***********************************************************************
1115 * DOS3Call (KERNEL.102)
1116 */
1117 void WINAPI DOS3Call( CONTEXT *context )
1118 {
1119 BOOL bSetDOSExtendedError = FALSE;
1120
1121
1122 TRACE(int21, "AX=%04x BX=%04x CX=%04x DX=%04x "
1123 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1124 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1125 SI_reg(context), DI_reg(context),
1126 (WORD)DS_reg(context), (WORD)ES_reg(context),
1127 EFL_reg(context) );
1128
1129
1130 if (AH_reg(context) == 0x59) /* Get extended error info */
1131 {
1132 INT21_GetExtendedError( context );
1133 return;
1134 }
1135
1136 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1137 {
1138 TRACE(int21, "FLUSH BUFFER AND READ STANDARD INPUT\n");
1139 /* no flush here yet */
1140 AH_reg(context) = AL_reg(context);
1141 }
1142
1143 if (AH_reg(context)>=0x2f) {
1144 /* extended error is used by (at least) functions 0x2f to 0x62 */
1145 SetLastError(0);
1146 }
1147 RESET_CFLAG(context); /* Not sure if this is a good idea */
1148
1149 switch(AH_reg(context))
1150 {
1151 case 0x03: /* READ CHARACTER FROM STDAUX */
1152 case 0x04: /* WRITE CHARACTER TO STDAUX */
1153 case 0x05: /* WRITE CHARACTER TO PRINTER */
1154 case 0x0f: /* OPEN FILE USING FCB */
1155 case 0x10: /* CLOSE FILE USING FCB */
1156 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1157 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1158 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1159 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1160 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1161 case 0x23: /* GET FILE SIZE FOR FCB */
1162 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1163 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1164 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1165 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1166 INT_BARF( context, 0x21 );
1167 break;
1168
1169 case 0x00: /* TERMINATE PROGRAM */
1170 TRACE(int21,"TERMINATE PROGRAM\n");
1171 ExitProcess( 0 );
1172 break;
1173
1174 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1175 TRACE(int21,"DIRECT CHARACTER INPUT WITH ECHO\n");
1176 AL_reg(context) = CONSOLE_GetCharacter();
1177 /* FIXME: no echo */
1178 break;
1179
1180 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1181 TRACE(int21, "Write Character to Standard Output\n");
1182 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1183 break;
1184
1185 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1186 if (DL_reg(context) == 0xff) {
1187 static char scan = 0;
1188 TRACE(int21, "Direct Console Input\n");
1189 if (scan) {
1190 /* return pending scancode */
1191 AL_reg(context) = scan;
1192 FL_reg(context) &= ~0x40; /* clear ZF */
1193 scan = 0;
1194 } else {
1195 char ascii;
1196 if (CONSOLE_CheckForKeystroke(&scan,&ascii)) {
1197 CONSOLE_GetKeystroke(&scan,&ascii);
1198 /* return ASCII code */
1199 AL_reg(context) = ascii;
1200 FL_reg(context) &= ~0x40; /* clear ZF */
1201 /* return scan code on next call only if ascii==0 */
1202 if (ascii) scan = 0;
1203 } else {
1204 /* nothing pending, clear everything */
1205 AL_reg(context) = 0;
1206 FL_reg(context) |= 0x40; /* set ZF */
1207 scan = 0; /* just in case */
1208 }
1209 }
1210 } else {
1211 TRACE(int21, "Direct Console Output\n");
1212 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1213 }
1214 break;
1215
1216 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1217 TRACE(int21,"DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1218 AL_reg(context) = CONSOLE_GetCharacter();
1219 break;
1220
1221 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1222 TRACE(int21,"CHARACTER INPUT WITHOUT ECHO\n");
1223 AL_reg(context) = CONSOLE_GetCharacter();
1224 break;
1225
1226 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1227 TRACE(int21,"WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1228 DS_reg(context),DX_reg(context) );
1229 {
1230 LPSTR data = CTX_SEG_OFF_TO_LIN(context,DS_reg(context),EDX_reg(context));
1231 LPSTR p = data;
1232 /* do NOT use strchr() to calculate the string length,
1233 as '\0' is valid string content, too !
1234 Maybe we should check for non-'$' strings, but DOS doesn't. */
1235 while (*p != '$') p++;
1236 _hwrite16( 1, data, (int)p - (int)data);
1237 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1238 }
1239 break;
1240
1241 case 0x0a: /* BUFFERED INPUT */
1242 {
1243 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1244 EDX_reg(context) ));
1245 int res;
1246
1247 TRACE(int21,"BUFFERED INPUT (size=%d)\n",buffer[0]);
1248 if (buffer[1])
1249 TRACE(int21,"Handle old chars in buffer!\n");
1250 res=_lread16( 0, buffer+2,buffer[0]);
1251 buffer[1]=res;
1252 if(buffer[res+1] == '\n')
1253 buffer[res+1] = '\r';
1254 break;
1255 }
1256
1257 case 0x0b: {/* GET STDIN STATUS */
1258 char x1,x2;
1259
1260 if (CONSOLE_CheckForKeystroke(&x1,&x2))
1261 AL_reg(context) = 0xff;
1262 else
1263 AL_reg(context) = 0;
1264 break;
1265 }
1266 case 0x2e: /* SET VERIFY FLAG */
1267 TRACE(int21,"SET VERIFY FLAG ignored\n");
1268 /* we cannot change the behaviour anyway, so just ignore it */
1269 break;
1270
1271 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1272 case 0x1d:
1273 case 0x1e:
1274 case 0x20:
1275 case 0x6b: /* NULL FUNCTION */
1276 AL_reg(context) = 0;
1277 break;
1278
1279 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1280 fLock(context);
1281 break;
1282
1283 case 0x0d: /* DISK BUFFER FLUSH */
1284 TRACE(int21,"DISK BUFFER FLUSH ignored\n");
1285 RESET_CFLAG(context); /* dos 6+ only */
1286 break;
1287
1288 case 0x0e: /* SELECT DEFAULT DRIVE */
1289 TRACE(int21,"SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1290 DRIVE_SetCurrentDrive( DL_reg(context) );
1291 AL_reg(context) = MAX_DOS_DRIVES;
1292 break;
1293
1294 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1295 TRACE(int21,"FIND FIRST MATCHING FILE USING FCB %p\n",
1296 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1297 if (!INT21_FindFirstFCB(context))
1298 {
1299 AL_reg(context) = 0xff;
1300 break;
1301 }
1302 /* else fall through */
1303
1304 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1305 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1306 break;
1307
1308 case 0x13: /* DELETE FILE USING FCB */
1309 DeleteFileFCB(context);
1310 break;
1311
1312 case 0x17: /* RENAME FILE USING FCB */
1313 RenameFileFCB(context);
1314 break;
1315
1316 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1317 AL_reg(context) = DRIVE_GetCurrentDrive();
1318 break;
1319
1320 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1321 {
1322 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1323 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(context),DX_reg(context));
1324 TRACE(int21, "Set DTA: %08lx\n", pTask->dta);
1325 }
1326 break;
1327
1328 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1329 DL_reg(context) = 0;
1330 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1331 break;
1332
1333 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1334 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1335 break;
1336
1337 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1338 GetDrivePB(context, DRIVE_GetCurrentDrive());
1339 break;
1340
1341 case 0x25: /* SET INTERRUPT VECTOR */
1342 INT_CtxSetHandler( context, AL_reg(context),
1343 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1344 DX_reg(context)));
1345 break;
1346
1347 case 0x29: /* PARSE FILENAME INTO FCB */
1348 INT21_ParseFileNameIntoFCB(context);
1349 break;
1350
1351 case 0x2a: /* GET SYSTEM DATE */
1352 INT21_GetSystemDate(context);
1353 break;
1354
1355 case 0x2b: /* SET SYSTEM DATE */
1356 FIXME(int21, "SetSystemDate(%02d/%02d/%04d): not allowed\n",
1357 DL_reg(context), DH_reg(context), CX_reg(context) );
1358 AL_reg(context) = 0; /* Let's pretend we succeeded */
1359 break;
1360
1361 case 0x2c: /* GET SYSTEM TIME */
1362 INT21_GetSystemTime(context);
1363 break;
1364
1365 case 0x2d: /* SET SYSTEM TIME */
1366 FIXME(int21, "SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1367 CH_reg(context), CL_reg(context),
1368 DH_reg(context), DL_reg(context) );
1369 AL_reg(context) = 0; /* Let's pretend we succeeded */
1370 break;
1371
1372 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1373 TRACE(int21,"GET DISK TRANSFER AREA ADDRESS\n");
1374 {
1375 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1376 ES_reg(context) = SELECTOROF( pTask->dta );
1377 BX_reg(context) = OFFSETOF( pTask->dta );
1378 }
1379 break;
1380
1381 case 0x30: /* GET DOS VERSION */
1382 TRACE(int21,"GET DOS VERSION %s requested\n",
1383 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1384 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1385 (HIWORD(GetVersion16()) << 8);
1386 #if 0
1387 AH_reg(context) = 0x7;
1388 AL_reg(context) = 0xA;
1389 #endif
1390
1391 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1392 CX_reg(context) = 0x0000;
1393 break;
1394
1395 case 0x31: /* TERMINATE AND STAY RESIDENT */
1396 FIXME(int21,"TERMINATE AND STAY RESIDENT stub\n");
1397 break;
1398
1399 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1400 TRACE(int21,"GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1401 INT21_DriveName( DL_reg(context)));
1402 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1403 break;
1404
1405 case 0x33: /* MULTIPLEXED */
1406 switch (AL_reg(context))
1407 {
1408 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1409 TRACE(int21,"GET CURRENT EXTENDED BREAK STATE\n");
1410 DL_reg(context) = DOSCONF_config.brk_flag;
1411 break;
1412
1413 case 0x01: /* SET EXTENDED BREAK STATE */
1414 TRACE(int21,"SET CURRENT EXTENDED BREAK STATE\n");
1415 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1416 break;
1417
1418 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1419 TRACE(int21,"GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1420 /* ugly coding in order to stay reentrant */
1421 if (DL_reg(context))
1422 {
1423 DL_reg(context) = DOSCONF_config.brk_flag;
1424 DOSCONF_config.brk_flag = 1;
1425 }
1426 else
1427 {
1428 DL_reg(context) = DOSCONF_config.brk_flag;
1429 DOSCONF_config.brk_flag = 0;
1430 }
1431 break;
1432
1433 case 0x05: /* GET BOOT DRIVE */
1434 TRACE(int21,"GET BOOT DRIVE\n");
1435 DL_reg(context) = 3;
1436 /* c: is Wine's bootdrive (a: is 1)*/
1437 break;
1438
1439 case 0x06: /* GET TRUE VERSION NUMBER */
1440 TRACE(int21,"GET TRUE VERSION NUMBER\n");
1441 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1442 (HIWORD(GetVersion16() << 8));
1443 DX_reg(context) = 0x00;
1444 break;
1445
1446 default:
1447 INT_BARF( context, 0x21 );
1448 break;
1449 }
1450 break;
1451
1452 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1453 TRACE(int21,"GET ADDRESS OF INDOS FLAG\n");
1454 if (!heap) INT21_CreateHeap();
1455 ES_reg(context) = DosHeapHandle;
1456 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1457 break;
1458
1459 case 0x35: /* GET INTERRUPT VECTOR */
1460 TRACE(int21,"GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1461 {
1462 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1463 ES_reg(context) = SELECTOROF(addr);
1464 BX_reg(context) = OFFSETOF(addr);
1465 }
1466 break;
1467
1468 case 0x36: /* GET FREE DISK SPACE */
1469 TRACE(int21,"GET FREE DISK SPACE FOR DRIVE %s\n",
1470 INT21_DriveName( DL_reg(context)));
1471 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1472 break;
1473
1474 case 0x37:
1475 {
1476 unsigned char switchchar='/';
1477 switch (AL_reg(context))
1478 {
1479 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1480 TRACE(int21,"SWITCHAR - GET SWITCH CHARACTER\n");
1481 AL_reg(context) = 0x00; /* success*/
1482 DL_reg(context) = switchchar;
1483 break;
1484 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1485 TRACE(int21,"SWITCHAR - SET SWITCH CHARACTER\n");
1486 switchchar = DL_reg(context);
1487 AL_reg(context) = 0x00; /* success*/
1488 break;
1489 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1490 INT_BARF( context, 0x21 );
1491 break;
1492 }
1493 break;
1494 }
1495
1496 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1497 TRACE(int21,"GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1498 AL_reg(context));
1499 AX_reg(context) = 0x02; /* no country support available */
1500 SET_CFLAG(context);
1501 break;
1502
1503 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1504 TRACE(int21,"MKDIR %s\n",
1505 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1506 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1507 EDX_reg(context) ), NULL));
1508 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1509 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1510 * denied), while CreateDirectory return several ones. remap some of
1511 * them. -Marcus
1512 */
1513 if (bSetDOSExtendedError) {
1514 switch (GetLastError()) {
1515 case ERROR_ALREADY_EXISTS:
1516 case ERROR_FILENAME_EXCED_RANGE:
1517 case ERROR_DISK_FULL:
1518 SetLastError(ERROR_ACCESS_DENIED);
1519 break;
1520 default: break;
1521 }
1522 }
1523 break;
1524
1525 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1526 TRACE(int21,"RMDIR %s\n",
1527 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1528 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1529 EDX_reg(context) )));
1530 break;
1531
1532 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1533 TRACE(int21,"CHDIR %s\n",
1534 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1535 bSetDOSExtendedError = !INT21_ChangeDir(context);
1536 break;
1537
1538 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1539 TRACE(int21,"CREAT flag 0x%02x %s\n",CX_reg(context),
1540 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1541 bSetDOSExtendedError = INT21_CreateFile( context );
1542 break;
1543
1544 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1545 TRACE(int21,"OPEN mode 0x%02x %s\n",AL_reg(context),
1546 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1547 OpenExistingFile(context);
1548 break;
1549
1550 case 0x3e: /* "CLOSE" - CLOSE FILE */
1551 TRACE(int21,"CLOSE handle %d\n",BX_reg(context));
1552 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1553 break;
1554
1555 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1556 TRACE(int21,"READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1557 DS_reg(context),DX_reg(context),CX_reg(context) );
1558 {
1559 LONG result;
1560 if (ISV86(context))
1561 result = _hread16( BX_reg(context),
1562 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1563 EDX_reg(context) ),
1564 CX_reg(context) );
1565 else
1566 result = WIN16_hread( BX_reg(context),
1567 PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1568 EDX_reg(context) ),
1569 CX_reg(context) );
1570 if (result == -1) bSetDOSExtendedError = TRUE;
1571 else AX_reg(context) = (WORD)result;
1572 }
1573 break;
1574
1575 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1576 TRACE(int21,"WRITE from %04lX:%04X to handle %d for %d byte\n",
1577 DS_reg(context),DX_reg(context),BX_reg(context),CX_reg(context) );
1578 {
1579 LONG result = _hwrite16( BX_reg(context),
1580 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1581 EDX_reg(context) ),
1582 CX_reg(context) );
1583 if (result == -1) bSetDOSExtendedError = TRUE;
1584 else AX_reg(context) = (WORD)result;
1585 }
1586 break;
1587
1588 case 0x41: /* "UNLINK" - DELETE FILE */
1589 TRACE(int21,"UNLINK%s\n",
1590 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1591 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1592 EDX_reg(context) )));
1593 break;
1594
1595 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1596 TRACE(int21,"LSEEK handle %d offset %ld from %s\n",
1597 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1598 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1599 "current file position":"end of file");
1600 {
1601 LONG status = _llseek16( BX_reg(context),
1602 MAKELONG(DX_reg(context),CX_reg(context)),
1603 AL_reg(context) );
1604 if (status == -1) bSetDOSExtendedError = TRUE;
1605 else
1606 {
1607 AX_reg(context) = LOWORD(status);
1608 DX_reg(context) = HIWORD(status);
1609 }
1610 }
1611 break;
1612
1613 case 0x43: /* FILE ATTRIBUTES */
1614 switch (AL_reg(context))
1615 {
1616 case 0x00:
1617 TRACE(int21,"GET FILE ATTRIBUTES for %s\n",
1618 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1619 AX_reg(context) = (WORD)GetFileAttributesA(
1620 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1621 EDX_reg(context)));
1622 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1623 else CX_reg(context) = AX_reg(context);
1624 break;
1625
1626 case 0x01:
1627 TRACE(int21,"SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1628 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1629 bSetDOSExtendedError =
1630 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1631 EDX_reg(context)),
1632 CX_reg(context) ));
1633 break;
1634 case 0x02:
1635 TRACE(int21,"GET COMPRESSED FILE SIZE for %s stub\n",
1636 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1637 }
1638 break;
1639
1640 case 0x44: /* IOCTL */
1641 switch (AL_reg(context))
1642 {
1643 case 0x00:
1644 ioctlGetDeviceInfo(context);
1645 break;
1646
1647 case 0x01:
1648 break;
1649 case 0x02:{
1650 const DOS_DEVICE *dev;
1651 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )) &&
1652 !strcasecmp( dev->name, "SCSIMGR$" ))
1653 {
1654 ASPI_DOS_HandleInt(context);
1655 }
1656 break;
1657 }
1658 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1659 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));*/
1660 int drive = DOS_GET_DRIVE(BL_reg(context));
1661
1662 FIXME(int21,"program tried to write to block device control channel of drive %d:\n",drive);
1663 /* for (i=0;i<CX_reg(context);i++)
1664 fprintf(stdnimp,"%02x ",dataptr[i]);
1665 fprintf(stdnimp,"\n");*/
1666 AX_reg(context)=CX_reg(context);
1667 break;
1668 }
1669 case 0x08: /* Check if drive is removable. */
1670 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1671 INT21_DriveName( BL_reg(context)));
1672 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1673 {
1674 case DRIVE_CANNOTDETERMINE:
1675 SetLastError( ERROR_INVALID_DRIVE );
1676 AX_reg(context) = ERROR_INVALID_DRIVE;
1677 SET_CFLAG(context);
1678 break;
1679 case DRIVE_REMOVABLE:
1680 AX_reg(context) = 0; /* removable */
1681 break;
1682 default:
1683 AX_reg(context) = 1; /* not removable */
1684 break;
1685 }
1686 break;
1687
1688 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1689 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1690 INT21_DriveName( BL_reg(context)));
1691 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1692 {
1693 case DRIVE_CANNOTDETERMINE:
1694 SetLastError( ERROR_INVALID_DRIVE );
1695 AX_reg(context) = ERROR_INVALID_DRIVE;
1696 SET_CFLAG(context);
1697 break;
1698 case DRIVE_REMOTE:
1699 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1700 break;
1701 default:
1702 DX_reg(context) = 0; /* FIXME: use driver attr here */
1703 break;
1704 }
1705 break;
1706
1707 case 0x0a: /* check if handle (BX) is remote */
1708 TRACE(int21,"IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1709 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1710 * not set on close
1711 */
1712 DX_reg(context) = 0;
1713 break;
1714
1715 case 0x0b: /* SET SHARING RETRY COUNT */
1716 TRACE(int21,"IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1717 CX_reg(context), DX_reg(context));
1718 if (!CX_reg(context))
1719 {
1720 AX_reg(context) = 1;
1721 SET_CFLAG(context);
1722 break;
1723 }
1724 sharing_pause = CX_reg(context);
1725 if (!DX_reg(context))
1726 sharing_retries = DX_reg(context);
1727 RESET_CFLAG(context);
1728 break;
1729
1730 case 0x0d:
1731 TRACE(int21,"IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1732 INT21_DriveName( BL_reg(context)));
1733 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1734 break;
1735
1736 case 0x0e: /* get logical drive mapping */
1737 TRACE(int21,"IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1738 INT21_DriveName( BL_reg(context)));
1739 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1740 break;
1741
1742 case 0x0F: /* Set logical drive mapping */
1743 {
1744 int drive;
1745 TRACE(int21,"IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1746 INT21_DriveName( BL_reg(context)));
1747 drive = DOS_GET_DRIVE ( BL_reg(context) );
1748 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1749 {
1750 SET_CFLAG(context);
1751 AX_reg(context) = 0x000F; /* invalid drive */
1752 }
1753 break;
1754 }
1755
1756 case 0xe0: /* Sun PC-NFS API */
1757 /* not installed */
1758 break;
1759
1760 default:
1761 INT_BARF( context, 0x21 );
1762 break;
1763 }
1764 break;
1765
1766 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1767 {
1768 HANDLE handle;
1769 TRACE(int21,"DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1770 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1771 FILE_GetHandle(BX_reg(context)),
1772 GetCurrentProcess(), &handle,
1773 0, TRUE, DUPLICATE_SAME_ACCESS )))
1774 AX_reg(context) = HFILE_ERROR16;
1775 else
1776 AX_reg(context) = FILE_AllocDosHandle(handle);
1777 break;
1778 }
1779
1780 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1781 TRACE(int21,"FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1782 BX_reg(context),CX_reg(context));
1783 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1784 break;
1785
1786 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1787 TRACE(int21,"CWD - GET CURRENT DIRECTORY for drive %s\n",
1788 INT21_DriveName( DL_reg(context)));
1789 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1790 break;
1791
1792 case 0x48: /* ALLOCATE MEMORY */
1793 TRACE(int21,"ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1794 {
1795 LPVOID *mem;
1796 if (ISV86(context))
1797 {
1798 mem= DOSMEM_GetBlock(0,(DWORD)BX_reg(context)<<4,NULL);
1799 if (mem)
1800 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1801 }
1802 else
1803 {
1804 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1805 if (mem)
1806 AX_reg(context) = (DWORD)mem&0xffff;
1807 }
1808 if (!mem)
1809 {
1810 SET_CFLAG(context);
1811 AX_reg(context) = 0x0008; /* insufficient memory */
1812 BX_reg(context) = DOSMEM_Available(0)>>4;
1813 }
1814 }
1815 break;
1816
1817 case 0x49: /* FREE MEMORY */
1818 TRACE(int21,"FREE MEMORY segment %04lX\n", ES_reg(context));
1819 {
1820 BOOL ret;
1821 if (ISV86(context))
1822 ret= DOSMEM_FreeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4));
1823 else
1824 {
1825 ret = !GlobalDOSFree16(ES_reg(context));
1826 /* If we don't reset ES_reg, we will fail in the relay code */
1827 ES_reg(context)=ret;
1828 }
1829 if (!ret)
1830 {
1831 TRACE(int21,"FREE MEMORY failed\n");
1832 SET_CFLAG(context);
1833 AX_reg(context) = 0x0009; /* memory block address invalid */
1834 }
1835 }
1836 break;
1837
1838 case 0x4a: /* RESIZE MEMORY BLOCK */
1839 TRACE(int21,"RESIZE MEMORY segment %04lX to %d paragraphs\n", ES_reg(context), BX_reg(context));
1840 if (!ISV86(context))
1841 FIXME(int21,"RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1842 {
1843 LPVOID *mem = DOSMEM_ResizeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4),
1844 BX_reg(context)<<4,NULL);
1845 if (mem)
1846 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1847 else {
1848 SET_CFLAG(context);
1849 AX_reg(context) = 0x0008; /* insufficient memory */
1850 BX_reg(context) = DOSMEM_Available(0)>>4; /* not quite right */
1851 }
1852 }
1853 break;
1854
1855 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1856 TRACE(int21,"EXEC %s\n",
1857 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context) ));
1858 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1859 EDX_reg(context) ),
1860 SW_NORMAL );
1861 if (AX_reg(context) < 32) SET_CFLAG(context);
1862 break;
1863
1864 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1865 TRACE(int21,"EXIT with return code %d\n",AL_reg(context));
1866 ExitProcess( AL_reg(context) );
1867 break;
1868
1869 case 0x4d: /* GET RETURN CODE */
1870 TRACE(int21,"GET RETURN CODE (ERRORLEVEL)\n");
1871 AX_reg(context) = 0; /* normal exit */
1872 break;
1873
1874 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1875 TRACE(int21,"FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1876 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1877 if (!INT21_FindFirst(context)) break;
1878 /* fall through */
1879
1880 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1881 TRACE(int21,"FINDNEXT\n");
1882 if (!INT21_FindNext(context))
1883 {
1884 SetLastError( ERROR_NO_MORE_FILES );
1885 AX_reg(context) = ERROR_NO_MORE_FILES;
1886 SET_CFLAG(context);
1887 }
1888 else AX_reg(context) = 0; /* OK */
1889 break;
1890 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1891 TRACE(int21, "SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1892 INT21_SetCurrentPSP(BX_reg(context));
1893 break;
1894 case 0x51: /* GET PSP ADDRESS */
1895 TRACE(int21,"GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1896 /* FIXME: should we return the original DOS PSP upon */
1897 /* Windows startup ? */
1898 BX_reg(context) = INT21_GetCurrentPSP();
1899 break;
1900 case 0x62: /* GET PSP ADDRESS */
1901 TRACE(int21,"GET CURRENT PSP ADDRESS\n");
1902 /* FIXME: should we return the original DOS PSP upon */
1903 /* Windows startup ? */
1904 BX_reg(context) = INT21_GetCurrentPSP();
1905 break;
1906
1907 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1908 TRACE(int21,"SYSVARS - GET LIST OF LISTS\n");
1909 {
1910 SEGPTR lol;
1911 lol = INT21_GetListOfLists();
1912 ES_reg(context) = HIWORD(lol);
1913 BX_reg(context) = LOWORD(lol);
1914 }
1915 break;
1916
1917 case 0x54: /* Get Verify Flag */
1918 TRACE(int21,"Get Verify Flag - Not Supported\n");
1919 AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
1920 break;
1921
1922 case 0x56: /* "RENAME" - RENAME FILE */
1923 TRACE(int21,"RENAME %s to %s\n",
1924 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1925 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context)));
1926 bSetDOSExtendedError =
1927 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1928 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context))));
1929 break;
1930
1931 case 0x57: /* FILE DATE AND TIME */
1932 switch (AL_reg(context))
1933 {
1934 case 0x00: /* Get */
1935 {
1936 FILETIME filetime;
1937 TRACE(int21,"GET FILE DATE AND TIME for handle %d\n",
1938 BX_reg(context));
1939 if (!GetFileTime( FILE_GetHandle(BX_reg(context)), NULL, NULL, &filetime ))
1940 bSetDOSExtendedError = TRUE;
1941 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1942 &CX_reg(context) );
1943 }
1944 break;
1945
1946 case 0x01: /* Set */
1947 {
1948 FILETIME filetime;
1949 TRACE(int21,"SET FILE DATE AND TIME for handle %d\n",
1950 BX_reg(context));
1951 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1952 &filetime );
1953 bSetDOSExtendedError =
1954 (!SetFileTime( FILE_GetHandle(BX_reg(context)),
1955 NULL, NULL, &filetime ));
1956 }
1957 break;
1958 }
1959 break;
1960
1961 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1962 TRACE(int21,"GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1963 AL_reg(context));
1964 switch (AL_reg(context))
1965 {
1966 case 0x00:
1967 AX_reg(context) = 1;
1968 break;
1969 case 0x02:
1970 AX_reg(context) = 0;
1971 break;
1972 case 0x01:
1973 case 0x03:
1974 break;
1975 }
1976 RESET_CFLAG(context);
1977 break;
1978
1979 case 0x5a: /* CREATE TEMPORARY FILE */
1980 TRACE(int21,"CREATE TEMPORARY FILE\n");
1981 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1982 break;
1983
1984 case 0x5b: /* CREATE NEW FILE */
1985 TRACE(int21,"CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1986 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1987 bSetDOSExtendedError = ((AX_reg(context) =
1988 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1989 CX_reg(context) )) == (WORD)HFILE_ERROR16);
1990 break;
1991
1992 case 0x5d: /* NETWORK */
1993 FIXME(int21,"Function 0x%04x not implemented.\n", AX_reg (context));
1994 /* Fix the following while you're at it. */
1995 SetLastError( ER_NoNetwork );
1996 bSetDOSExtendedError = TRUE;
1997 break;
1998
1999 case 0x5e:
2000 bSetDOSExtendedError = INT21_networkfunc (context);
2001 break;
2002
2003 case 0x5f: /* NETWORK */
2004 switch (AL_reg(context))
2005 {
2006 case 0x07: /* ENABLE DRIVE */
2007 TRACE(int21,"ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2008 if (!DRIVE_Enable( DL_reg(context) ))
2009 {
2010 SetLastError( ERROR_INVALID_DRIVE );
2011 bSetDOSExtendedError = TRUE;
2012 }
2013 break;
2014
2015 case 0x08: /* DISABLE DRIVE */
2016 TRACE(int21,"DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2017 if (!DRIVE_Disable( DL_reg(context) ))
2018 {
2019 SetLastError( ERROR_INVALID_DRIVE );
2020 bSetDOSExtendedError = TRUE;
2021 }
2022 break;
2023
2024 default:
2025 /* network software not installed */
2026 TRACE(int21,"NETWORK function AX=%04x not implemented\n",AX_reg(context));
2027 SetLastError( ER_NoNetwork );
2028 bSetDOSExtendedError = TRUE;
2029 break;
2030 }
2031 break;
2032
2033 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
2034 TRACE(int21,"TRUENAME %s\n",
2035 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),ESI_reg(context)));
2036 {
2037 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2038 ESI_reg(context)), 128,
2039 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2040 EDI_reg(context)),NULL))
2041 bSetDOSExtendedError = TRUE;
2042 else AX_reg(context) = 0;
2043 }
2044 break;
2045
2046 case 0x61: /* UNUSED */
2047 case 0x63: /* misc. language support */
2048 switch (AL_reg(context)) {
2049 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
2050 INT21_GetDBCSLeadTable(context);
2051 break;
2052 }
2053 break;
2054 case 0x64: /* OS/2 DOS BOX */
2055 INT_BARF( context, 0x21 );
2056 SET_CFLAG(context);
2057 break;
2058
2059 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2060 extern WORD WINE_LanguageId;
2061 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context));
2062 TRACE(int21,"GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2063 BX_reg(context), DX_reg(context));
2064 switch (AL_reg(context)) {
2065 case 0x01:
2066 TRACE(int21,"\tget general internationalization info\n");
2067 dataptr[0] = 0x1;
2068 *(WORD*)(dataptr+1) = 41;
2069 *(WORD*)(dataptr+3) = WINE_LanguageId;
2070 *(WORD*)(dataptr+5) = CodePage;
2071 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2072 break;
2073 case 0x06:
2074 TRACE(int21,"\tget pointer to collating sequence table\n");
2075 dataptr[0] = 0x06;
2076 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2077 CX_reg(context) = 258;/*FIXME: size of table?*/
2078 break;
2079 default:
2080 TRACE(int21,"\tunimplemented function %d\n",AL_reg(context));
2081 INT_BARF( context, 0x21 );
2082 SET_CFLAG(context);
2083 break;
2084 }
2085 break;
2086 }
2087 case 0x66: /* GLOBAL CODE PAGE TABLE */
2088 switch (AL_reg(context))
2089 {
2090 case 0x01:
2091 TRACE(int21,"GET GLOBAL CODE PAGE TABLE\n");
2092 DX_reg(context) = BX_reg(context) = CodePage;
2093 RESET_CFLAG(context);
2094 break;
2095 case 0x02:
2096 TRACE(int21,"SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2097 BX_reg(context),DX_reg(context));
2098 CodePage = BX_reg(context);
2099 RESET_CFLAG(context);
2100 break;
2101 }
2102 break;
2103
2104 case 0x67: /* SET HANDLE COUNT */
2105 TRACE(int21,"SET HANDLE COUNT to %d\n",BX_reg(context) );
2106 SetHandleCount16( BX_reg(context) );
2107 if (GetLastError()) bSetDOSExtendedError = TRUE;
2108 break;
2109
2110 case 0x68: /* "FFLUSH" - COMMIT FILE */
2111 case 0x6a: /* COMMIT FILE */
2112 TRACE(int21,"FFLUSH/COMMIT handle %d\n",BX_reg(context));
2113 bSetDOSExtendedError = (!FlushFileBuffers( FILE_GetHandle(BX_reg(context)) ));
2114 break;
2115
2116 case 0x69: /* DISK SERIAL NUMBER */
2117 switch (AL_reg(context))
2118 {
2119 case 0x00:
2120 TRACE(int21,"GET DISK SERIAL NUMBER for drive %s\n",
2121 INT21_DriveName(BL_reg(context)));
2122 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2123 else AX_reg(context) = 0;
2124 break;
2125
2126 case 0x01:
2127 TRACE(int21,"SET DISK SERIAL NUMBER for drive %s\n",
2128 INT21_DriveName(BL_reg(context)));
2129 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2130 else AX_reg(context) = 1;
2131 break;
2132 }
2133 break;
2134
2135 case 0x6C: /* Extended Open/Create*/
2136 TRACE(int21,"EXTENDED OPEN/CREATE %s\n",
2137 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDI_reg(context)));
2138 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2139 break;
2140
2141 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2142 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2143 /* not supported on anything but Win95 */
2144 TRACE(int21,"LONG FILENAME functions supported only by win95\n");
2145 SET_CFLAG(context);
2146 AL_reg(context) = 0;
2147 } else
2148 switch(AL_reg(context))
2149 {
2150 case 0x39: /* Create directory */
2151 TRACE(int21,"LONG FILENAME - MAKE DIRECTORY %s\n",
2152 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2153 bSetDOSExtendedError = (!CreateDirectoryA(
2154 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2155 EDX_reg(context) ), NULL));
2156 break;
2157 case 0x3a: /* Remove directory */
2158 TRACE(int21,"LONG FILENAME - REMOVE DIRECTORY %s\n",
2159 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2160 bSetDOSExtendedError = (!RemoveDirectoryA(
2161 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2162 EDX_reg(context) )));
2163 break;
2164 case 0x43: /* Get/Set file attributes */
2165 TRACE(int21,"LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2166 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2167 switch (BL_reg(context))
2168 {
2169 case 0x00: /* Get file attributes */
2170 TRACE(int21,"\tretrieve attributes\n");
2171 CX_reg(context) = (WORD)GetFileAttributesA(
2172 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2173 EDX_reg(context)));
2174 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2175 break;
2176 case 0x01:
2177 TRACE(int21,"\tset attributes 0x%04x\n",CX_reg(context));
2178 bSetDOSExtendedError = (!SetFileAttributesA(
2179 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2180 EDX_reg(context)),
2181 CX_reg(context) ) );
2182 break;
2183 default:
2184 FIXME(int21, "Unimplemented long file name function:\n");
2185 INT_BARF( context, 0x21 );
2186 SET_CFLAG(context);
2187 AL_reg(context) = 0;
2188 break;
2189 }
2190 break;
2191 case 0x47: /* Get current directory */
2192 TRACE(int21," LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2193 INT21_DriveName(DL_reg(context)));
2194 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2195 break;
2196
2197 case 0x4e: /* Find first file */
2198 TRACE(int21," LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2199 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2200 /* FIXME: use attributes in CX */
2201 if ((AX_reg(context) = FindFirstFile16(
2202 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
2203 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2204 EDI_reg(context))))
2205 == INVALID_HANDLE_VALUE16)
2206 bSetDOSExtendedError = TRUE;
2207 break;
2208 case 0x4f: /* Find next file */
2209 TRACE(int21,"LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2210 BX_reg(context));
2211 if (!FindNextFile16( BX_reg(context),
2212 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2213 EDI_reg(context))))
2214 bSetDOSExtendedError = TRUE;
2215 break;
2216 case 0xa1: /* Find close */
2217 TRACE(int21,"LONG FILENAME - FINDCLOSE for handle %d\n",
2218 BX_reg(context));
2219 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2220 break;
2221 case 0xa0:
2222 TRACE(int21,"LONG FILENAME - GET VOLUME INFORMATION for drive %s stub\n",
2223 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2224 break;
2225 case 0x60:
2226 switch(CL_reg(context))
2227 {
2228 case 0x01: /*Get short filename or path */
2229 if (!GetShortPathNameA
2230 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2231 ESI_reg(context)),
2232 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2233 EDI_reg(context)), 67))
2234 bSetDOSExtendedError = TRUE;
2235 else AX_reg(context) = 0;
2236 break;
2237 case 0x02: /*Get canonical long filename or path */
2238 if (!GetFullPathNameA
2239 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2240 ESI_reg(context)), 128,
2241 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2242 EDI_reg(context)),NULL))
2243 bSetDOSExtendedError = TRUE;
2244 else AX_reg(context) = 0;
2245 break;
2246 default:
2247 FIXME(int21, "Unimplemented long file name function:\n");
2248 INT_BARF( context, 0x21 );
2249 SET_CFLAG(context);
2250 AL_reg(context) = 0;
2251 break;
2252 }
2253 break;
2254 case 0x6c: /* Create or open file */
2255 TRACE(int21,"LONG FILENAME - CREATE OR OPEN FILE %s\n",
2256 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context)));
2257 /* translate Dos 7 action to Dos 6 action */
2258 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2259 break;
2260
2261 case 0x3b: /* Change directory */
2262 TRACE(int21,"LONG FILENAME - CHANGE DIRECTORY %s\n",
2263 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2264 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2265 DS_reg(context),
2266 EDX_reg(context)
2267 ))
2268 ) {
2269 SET_CFLAG(context);
2270 AL_reg(context) = GetLastError();
2271 }
2272 break;
2273 case 0x41: /* Delete file */
2274 TRACE(int21,"LONG FILENAME - DELETE FILE %s\n",
2275 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2276 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2277 DS_reg(context),
2278 EDX_reg(context))
2279 )) {
2280 SET_CFLAG(context);
2281 AL_reg(context) = GetLastError();
2282 }
2283 break;
2284 case 0x56: /* Move (rename) file */
2285 TRACE(int21,"LONG FILENAME - RENAME FILE %s to %s stub\n",
2286 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)),
2287 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context)));
2288 default:
2289 FIXME(int21, "Unimplemented long file name function:\n");
2290 INT_BARF( context, 0x21 );
2291 SET_CFLAG(context);
2292 AL_reg(context) = 0;
2293 break;
2294 }
2295 break;
2296
2297 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2298 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2299 case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */
2300 TRACE(int21,"windows95 function AX %04x\n",
2301 AX_reg(context));
2302 WARN(int21, " returning unimplemented\n");
2303 SET_CFLAG(context);
2304 AL_reg(context) = 0;
2305 break;
2306
2307 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2308 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2309 break;
2310
2311 default:
2312 INT_BARF( context, 0x21 );
2313 break;
2314
2315 } /* END OF SWITCH */
2316
2317 if( bSetDOSExtendedError ) /* set general error condition */
2318 {
2319 AX_reg(context) = GetLastError();
2320 SET_CFLAG(context);
2321 }
2322
2323 if ((EFL_reg(context) & 0x0001))
2324 TRACE(int21, "failed, error 0x%04lx\n", GetLastError() );
2325
2326 TRACE(int21, "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2327 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2328 AX_reg(context), BX_reg(context), CX_reg(context),
2329 DX_reg(context), SI_reg(context), DI_reg(context),
2330 (WORD)DS_reg(context), (WORD)ES_reg(context),
2331 EFL_reg(context));
2332 }
2333
2334 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2335 {
2336 FIXME(int21, "(DosProc=0x%08x): stub\n", (UINT)DosProc);
2337 return NULL;
2338 }
2339
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