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Bugfix: memory overwrite bug.
[wine/multimedia.git] / msdos / int21.c
blob3c5693c4c8be15710d6d2ad74993a913867b7d91
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 #include <sys/file.h>
10 #include <string.h>
11 #include <sys/stat.h>
12 #include <sys/time.h>
13 #include <sys/types.h>
14 #include <unistd.h>
15 #include <utime.h>
16 #include <ctype.h>
17 #include "windows.h"
18 #include "drive.h"
19 #include "file.h"
20 #include "heap.h"
21 #include "msdos.h"
22 #include "ldt.h"
23 #include "task.h"
24 #include "options.h"
25 #include "miscemu.h"
26 #include "debug.h"
27 #if defined(__svr4__) || defined(_SCO_DS)
28 /* SVR4 DOESNT do locking the same way must implement properly */
29 #define LOCK_EX 0
30 #define LOCK_SH 1
31 #define LOCK_NB 8
32 #endif
33
34
35 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
36
37 /* Define the drive parameter block, as used by int21/1F
38 * and int21/32. This table can be accessed through the
39 * global 'dpb' pointer, which points into the local dos
40 * heap.
41 */
42 struct DPB
43 {
44 BYTE drive_num; /* 0=A, etc. */
45 BYTE unit_num; /* Drive's unit number (?) */
46 WORD sector_size; /* Sector size in bytes */
47 BYTE high_sector; /* Highest sector in a cluster */
48 BYTE shift; /* Shift count (?) */
49 WORD reserved; /* Number of reserved sectors at start */
50 BYTE num_FAT; /* Number of FATs */
51 WORD dir_entries; /* Number of root dir entries */
52 WORD first_data; /* First data sector */
53 WORD high_cluster; /* Highest cluster number */
54 WORD sectors_in_FAT; /* Number of sectors per FAT */
55 WORD start_dir; /* Starting sector of first dir */
56 DWORD driver_head; /* Address of device driver header (?) */
57 BYTE media_ID; /* Media ID */
58 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
59 DWORD next; /* Pointer to next DPB in list */
60 WORD free_search; /* Free cluster search start */
61 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
62 };
63
64 WORD CodePage = 437;
65 DWORD dpbsegptr;
66
67 struct DosHeap {
68 BYTE InDosFlag;
69 BYTE mediaID;
70 BYTE biosdate[8];
71 struct DPB dpb;
72 };
73 static struct DosHeap *heap;
74 static WORD DosHeapHandle;
75
76 WORD sharing_retries = 3; /* number of retries at sharing violation */
77 WORD sharing_pause = 1; /* pause between retries */
78
79 extern char TempDirectory[];
80
81 static BOOL32 INT21_CreateHeap(void)
82 {
83 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
84 {
85 WARN(int21, "Out of memory\n");
86 return FALSE;
87 }
88 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
89 dpbsegptr = PTR_SEG_OFF_TO_SEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
90 heap->InDosFlag = 0;
91 strcpy(heap->biosdate, "01/01/80");
92 return TRUE;
93 }
94
95 static BYTE *GetCurrentDTA( CONTEXT *context )
96 {
97 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
98
99 /* FIXME: This assumes DTA was set correctly! */
100 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
101 OFFSETOF(pTask->dta) );
102 }
103
104
105 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
106 /* limited == TRUE is used with INT 0x21/0x440d */
107 {
108 if (drive > 1) {
109 setword(data, 512);
110 data[2] = 2;
111 setword(&data[3], 0);
112 data[5] = 2;
113 setword(&data[6], 240);
114 setword(&data[8], 64000);
115 data[0x0a] = 0xf8;
116 setword(&data[0x0b], 40);
117 setword(&data[0x0d], 56);
118 setword(&data[0x0f], 2);
119 setword(&data[0x11], 0);
120 if (!limited) {
121 setword(&data[0x1f], 800);
122 data[0x21] = 5;
123 setword(&data[0x22], 1);
124 }
125 } else { /* 1.44mb */
126 setword(data, 512);
127 data[2] = 2;
128 setword(&data[3], 0);
129 data[5] = 2;
130 setword(&data[6], 240);
131 setword(&data[8], 2880);
132 data[0x0a] = 0xf8;
133 setword(&data[0x0b], 6);
134 setword(&data[0x0d], 18);
135 setword(&data[0x0f], 2);
136 setword(&data[0x11], 0);
137 if (!limited) {
138 setword(&data[0x1f], 80);
139 data[0x21] = 7;
140 setword(&data[0x22], 2);
141 }
142 }
143 }
144
145 static int INT21_GetFreeDiskSpace( CONTEXT *context )
146 {
147 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
148 char root[] = "A:\\";
149
150 *root += DOS_GET_DRIVE( DL_reg(context) );
151 if (!GetDiskFreeSpace32A( root, &cluster_sectors, &sector_bytes,
152 &free_clusters, &total_clusters )) return 0;
153 AX_reg(context) = cluster_sectors;
154 BX_reg(context) = free_clusters;
155 CX_reg(context) = sector_bytes;
156 DX_reg(context) = total_clusters;
157 return 1;
158 }
159
160 static int INT21_GetDriveAllocInfo( CONTEXT *context )
161 {
162 if (!INT21_GetFreeDiskSpace( context )) return 0;
163 if (!heap && !INT21_CreateHeap()) return 0;
164 heap->mediaID = 0xf0;
165 DS_reg(context) = DosHeapHandle;
166 BX_reg(context) = (int)&heap->mediaID - (int)heap;
167 return 1;
168 }
169
170 static void GetDrivePB( CONTEXT *context, int drive )
171 {
172 if(!DRIVE_IsValid(drive))
173 {
174 DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
175 AX_reg(context) = 0x00ff;
176 }
177 else if (heap || INT21_CreateHeap())
178 {
179 FIXME(int21, "GetDrivePB not fully implemented.\n");
180
181 /* FIXME: I have no idea what a lot of this information should
182 * say or whether it even really matters since we're not allowing
183 * direct block access. However, some programs seem to depend on
184 * getting at least _something_ back from here. The 'next' pointer
185 * does worry me, though. Should we have a complete table of
186 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
187 */
188 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
189 heap->dpb.sector_size = 512;
190 heap->dpb.high_sector = 1;
191 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
192 heap->dpb.reserved = 0;
193 heap->dpb.num_FAT = 1;
194 heap->dpb.dir_entries = 2;
195 heap->dpb.first_data = 2;
196 heap->dpb.high_cluster = 64000;
197 heap->dpb.sectors_in_FAT = 1;
198 heap->dpb.start_dir = 1;
199 heap->dpb.driver_head = 0;
200 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
201 heap->dpb.access_flag = 0;
202 heap->dpb.next = 0;
203 heap->dpb.free_search = 0;
204 heap->dpb.free_clusters = 0xFFFF; /* unknown */
205
206 AL_reg(context) = 0x00;
207 DS_reg(context) = SELECTOROF(dpbsegptr);
208 BX_reg(context) = OFFSETOF(dpbsegptr);
209 }
210 }
211
212
213 static void ioctlGetDeviceInfo( CONTEXT *context )
214 {
215 int curr_drive;
216 FILE_OBJECT *file;
217
218 TRACE(int21, "(%d)\n", BX_reg(context));
219
220 RESET_CFLAG(context);
221
222 /* DOS device ? */
223 if ((file = FILE_GetFile( HFILE16_TO_HFILE32(BX_reg(context)) )))
224 {
225 const DOS_DEVICE *dev = DOSFS_GetDevice( file->unix_name );
226 FILE_ReleaseFile( file );
227 if (dev)
228 {
229 DX_reg(context) = dev->flags;
230 return;
231 }
232 }
233
234 /* it seems to be a file */
235 curr_drive = DRIVE_GetCurrentDrive();
236 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
237 /* no floppy */
238 /* bits 0-5 are current drive
239 * bit 6 - file has NOT been written..FIXME: correct?
240 * bit 8 - generate int24 if no diskspace on write/ read past end of file
241 * bit 11 - media not removable
242 * bit 14 - don't set file date/time on closing
243 * bit 15 - file is remote
244 */
245 }
246
247 static BOOL32 ioctlGenericBlkDevReq( CONTEXT *context )
248 {
249 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context));
250 int drive = DOS_GET_DRIVE( BL_reg(context) );
251
252 if (!DRIVE_IsValid(drive))
253 {
254 DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
255 return TRUE;
256 }
257
258 if (CH_reg(context) != 0x08)
259 {
260 INT_BARF( context, 0x21 );
261 return FALSE;
262 }
263
264 switch (CL_reg(context))
265 {
266 case 0x4a: /* lock logical volume */
267 TRACE(int21,"lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
268 break;
269
270 case 0x60: /* get device parameters */
271 /* used by w4wgrp's winfile */
272 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
273 dataptr[0] = 0x04;
274 dataptr[6] = 0; /* media type */
275 if (drive > 1)
276 {
277 dataptr[1] = 0x05; /* fixed disk */
278 setword(&dataptr[2], 0x01); /* non removable */
279 setword(&dataptr[4], 0x300); /* # of cylinders */
280 }
281 else
282 {
283 dataptr[1] = 0x07; /* block dev, floppy */
284 setword(&dataptr[2], 0x02); /* removable */
285 setword(&dataptr[4], 80); /* # of cylinders */
286 }
287 CreateBPB(drive, &dataptr[7], TRUE);
288 RESET_CFLAG(context);
289 break;
290
291 case 0x66:/* get disk serial number */
292 {
293 char label[12],fsname[9],path[4];
294 DWORD serial;
295
296 strcpy(path,"x:\\");path[0]=drive+'A';
297 GetVolumeInformation32A(
298 path,label,12,&serial,NULL,NULL,fsname,9
299 );
300 *(WORD*)dataptr = 0;
301 memcpy(dataptr+2,&serial,4);
302 memcpy(dataptr+6,label ,11);
303 memcpy(dataptr+17,fsname,8);
304 }
305 break;
306
307 case 0x6a:
308 TRACE(int21,"logical volume %d unlocked.\n",drive);
309 break;
310
311 case 0x6f:
312 memset(dataptr+1, '\0', dataptr[0]-1);
313 dataptr[1] = dataptr[0];
314 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
315 dataptr[3] = 0xFF; /* no physical drive */
316 break;
317
318 default:
319 INT_BARF( context, 0x21 );
320 }
321 return FALSE;
322 }
323
324 static void INT21_GetSystemDate( CONTEXT *context )
325 {
326 SYSTEMTIME systime;
327 GetLocalTime( &systime );
328 CX_reg(context) = systime.wYear;
329 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
330 AX_reg(context) = systime.wDayOfWeek;
331 }
332
333 static void INT21_GetSystemTime( CONTEXT *context )
334 {
335 SYSTEMTIME systime;
336 GetLocalTime( &systime );
337 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
338 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
339 }
340
341 /* Many calls translate a drive argument like this:
342 drive number (00h = default, 01h = A:, etc)
343 */
344 static char drivestring[]="default";
345
346 char *INT21_DriveName(int drive)
347 {
348
349 if(drive >0)
350 {
351 drivestring[0]= (unsigned char)drive + '@';
352 drivestring[1]=':';
353 drivestring[2]=0;
354 }
355 return drivestring;
356 }
357 static BOOL32 INT21_CreateFile( CONTEXT *context )
358 {
359 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
360 DX_reg(context) ), CX_reg(context) );
361 return (AX_reg(context) == (WORD)HFILE_ERROR16);
362 }
363
364
365 static void OpenExistingFile( CONTEXT *context )
366 {
367 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)),
368 AL_reg(context) );
369 if (AX_reg(context) == (WORD)HFILE_ERROR16)
370 {
371 AX_reg(context) = DOS_ExtendedError;
372 SET_CFLAG(context);
373 }
374 #if 0
375 {
376 int handle;
377 int mode;
378 int lock;
379
380 switch (AX_reg(context) & 0x0070)
381 {
382 case 0x00: /* compatability mode */
383 case 0x40: /* DENYNONE */
384 lock = -1;
385 break;
386
387 case 0x30: /* DENYREAD */
388 TRACE(int21, "(%s): DENYREAD changed to DENYALL\n",
389 (char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)));
390 case 0x10: /* DENYALL */
391 lock = LOCK_EX;
392 break;
393
394 case 0x20: /* DENYWRITE */
395 lock = LOCK_SH;
396 break;
397
398 default:
399 lock = -1;
400 }
401
402 if (lock != -1)
403 {
404
405 int result,retries=sharing_retries;
406 {
407 #if defined(__svr4__) || defined(_SCO_DS)
408 ERR(int21, "Should call flock and needs porting to lockf\n");
409 result = 0;
410 retries = 0;
411 #else
412 result = flock(handle, lock | LOCK_NB);
413 #endif
414 if ( retries && (!result) )
415 {
416 int i;
417 for(i=0;i<32768*((int)sharing_pause);i++)
418 result++; /* stop the optimizer */
419 for(i=0;i<32768*((int)sharing_pause);i++)
420 result--;
421 }
422 }
423 while( (!result) && (!(retries--)) );
424
425 if(result)
426 {
427 errno_to_doserr();
428 AX_reg(context) = DOS_ExtendedError;
429 close(handle);
430 SET_CFLAG(context);
431 return;
432 }
433
434 }
435
436 Error (0,0,0);
437 AX_reg(context) = handle;
438 RESET_CFLAG(context);
439 }
440 #endif
441 }
442
443 static void CloseFile( CONTEXT *context )
444 {
445 if ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0)
446 {
447 AX_reg(context) = DOS_ExtendedError;
448 SET_CFLAG(context);
449 }
450 }
451
452 static BOOL32 INT21_ExtendedOpenCreateFile(CONTEXT *context )
453 {
454 BOOL32 bExtendedError = FALSE;
455 BYTE action = DL_reg(context);
456
457 /* Shuffle arguments to call OpenExistingFile */
458 AL_reg(context) = BL_reg(context);
459 DX_reg(context) = SI_reg(context);
460 /* BX,CX and DX should be preserved */
461 OpenExistingFile(context);
462
463 if ((EFL_reg(context) & 0x0001) == 0) /* File exists */
464 {
465 UINT16 uReturnCX = 0;
466
467 /* Now decide what do do */
468
469 if ((action & 0x07) == 0)
470 {
471 BX_reg(context) = AX_reg(context);
472 CloseFile(context);
473 AX_reg(context) = 0x0050; /*File exists*/
474 SET_CFLAG(context);
475 WARN(int21, "extended open/create: failed because file exists \n");
476 }
477 else if ((action & 0x07) == 2)
478 {
479 /* Truncate it, but first check if opened for write */
480 if ((BL_reg(context) & 0x0007)== 0)
481 {
482 BX_reg(context) = AX_reg(context);
483 CloseFile(context);
484 WARN(int21, "extended open/create: failed, trunc on ro file\n");
485 AX_reg(context) = 0x000C; /*Access code invalid*/
486 SET_CFLAG(context);
487 }
488 else
489 {
490 /* Shuffle arguments to call CloseFile while
491 * preserving BX and DX */
492
493 TRACE(int21, "extended open/create: Closing before truncate\n");
494 BX_reg(context) = AX_reg(context);
495 CloseFile(context);
496 if (EFL_reg(context) & 0x0001)
497 {
498 WARN(int21, "extended open/create: close before trunc failed\n");
499 AX_reg(context) = 0x0019; /*Seek Error*/
500 CX_reg(context) = 0;
501 SET_CFLAG(context);
502 }
503 /* Shuffle arguments to call CreateFile */
504
505 TRACE(int21, "extended open/create: Truncating\n");
506 AL_reg(context) = BL_reg(context);
507 /* CX is still the same */
508 DX_reg(context) = SI_reg(context);
509 bExtendedError = INT21_CreateFile(context);
510
511 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
512 {
513 WARN(int21, "extended open/create: trunc failed\n");
514 return bExtendedError;
515 }
516 uReturnCX = 0x3;
517 }
518 }
519 else uReturnCX = 0x1;
520
521 CX_reg(context) = uReturnCX;
522 }
523 else /* file does not exist */
524 {
525 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
526 if ((action & 0xF0)== 0)
527 {
528 CX_reg(context) = 0;
529 SET_CFLAG(context);
530 WARN(int21, "extended open/create: failed, file dosen't exist\n");
531 }
532 else
533 {
534 /* Shuffle arguments to call CreateFile */
535 TRACE(int21, "extended open/create: Creating\n");
536 AL_reg(context) = BL_reg(context);
537 /* CX should still be the same */
538 DX_reg(context) = SI_reg(context);
539 bExtendedError = INT21_CreateFile(context);
540 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
541 {
542 WARN(int21, "extended open/create: create failed\n");
543 return bExtendedError;
544 }
545 CX_reg(context) = 2;
546 }
547 }
548
549 return bExtendedError;
550 }
551
552
553 static BOOL32 INT21_ChangeDir( CONTEXT *context )
554 {
555 int drive;
556 char *dirname = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context));
557
558 TRACE(int21,"changedir %s\n", dirname);
559 if (dirname[0] && (dirname[1] == ':'))
560 {
561 drive = toupper(dirname[0]) - 'A';
562 dirname += 2;
563 }
564 else drive = DRIVE_GetCurrentDrive();
565 return DRIVE_Chdir( drive, dirname );
566 }
567
568
569 static int INT21_FindFirst( CONTEXT *context )
570 {
571 char *p;
572 const char *path;
573 DOS_FULL_NAME full_name;
574 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
575
576 path = (const char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context));
577 dta->unixPath = NULL;
578 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
579 {
580 AX_reg(context) = DOS_ExtendedError;
581 SET_CFLAG(context);
582 return 0;
583 }
584 dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
585 p = strrchr( dta->unixPath, '/' );
586 *p = '\0';
587
588 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
589 * (doesn't matter as it is set below anyway)
590 */
591 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
592 {
593 HeapFree( GetProcessHeap(), 0, dta->unixPath );
594 dta->unixPath = NULL;
595 DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
596 AX_reg(context) = ER_FileNotFound;
597 SET_CFLAG(context);
598 return 0;
599 }
600 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
601 : DRIVE_GetCurrentDrive();
602 dta->count = 0;
603 dta->search_attr = CL_reg(context);
604 return 1;
605 }
606
607
608 static int INT21_FindNext( CONTEXT *context )
609 {
610 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
611 WIN32_FIND_DATA32A entry;
612 int count;
613
614 if (!dta->unixPath) return 0;
615 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
616 dta->search_attr, dta->count, &entry )))
617 {
618 HeapFree( GetProcessHeap(), 0, dta->unixPath );
619 dta->unixPath = NULL;
620 return 0;
621 }
622 if ((int)dta->count + count > 0xffff)
623 {
624 WARN(int21, "Too many directory entries in %s\n", dta->unixPath );
625 HeapFree( GetProcessHeap(), 0, dta->unixPath );
626 dta->unixPath = NULL;
627 return 0;
628 }
629 dta->count += count;
630 dta->fileattr = entry.dwFileAttributes;
631 dta->filesize = entry.nFileSizeLow;
632 FileTimeToDosDateTime( &entry.ftLastWriteTime,
633 &dta->filedate, &dta->filetime );
634 strcpy( dta->filename, entry.cAlternateFileName );
635 if (!memchr(dta->mask,'?',11)) {
636 /* wildcardless search, release resources in case no findnext will
637 * be issued, and as a workaround in case file creation messes up
638 * findnext, as sometimes happens with pkunzip */
639 HeapFree( GetProcessHeap(), 0, dta->unixPath );
640 dta->unixPath = NULL;
641 }
642 return 1;
643 }
644
645
646 static BOOL32 INT21_CreateTempFile( CONTEXT *context )
647 {
648 static int counter = 0;
649 char *name = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context) );
650 char *p = name + strlen(name);
651
652 /* despite what Ralf Brown says, some programs seem to call without
653 * ending backslash (DOS accepts that, so we accept it too) */
654 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
655
656 for (;;)
657 {
658 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
659 counter = (counter + 1) % 1000;
660
661 if ((AX_reg(context) = HFILE32_TO_HFILE16(_lcreat_uniq( name, 0 ))) != (WORD)HFILE_ERROR16)
662 {
663 TRACE(int21, "created %s\n", name );
664 return TRUE;
665 }
666 if (DOS_ExtendedError != ER_FileExists) return FALSE;
667 }
668 }
669
670
671 static BOOL32 INT21_GetCurrentDirectory( CONTEXT *context )
672 {
673 int drive = DOS_GET_DRIVE( DL_reg(context) );
674 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), SI_reg(context) );
675
676 if (!DRIVE_IsValid(drive))
677 {
678 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
679 return FALSE;
680 }
681 lstrcpyn32A( ptr, DRIVE_GetDosCwd(drive), 64 );
682 AX_reg(context) = 0x0100; /* success return code */
683 return TRUE;
684 }
685
686
687 static int INT21_GetDiskSerialNumber( CONTEXT *context )
688 {
689 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context));
690 int drive = DOS_GET_DRIVE( BL_reg(context) );
691
692 if (!DRIVE_IsValid(drive))
693 {
694 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
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), DX_reg(context));
709 int drive = DOS_GET_DRIVE( BL_reg(context) );
710
711 if (!DRIVE_IsValid(drive))
712 {
713 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
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), DX_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), DX_reg(context));
752 FINDFILE_FCB *pFCB;
753 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
754 WIN32_FIND_DATA32A 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(HFILE16_TO_HFILE32(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) = DOS_ExtendedError;
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(HFILE16_TO_HFILE32(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) = DOS_ExtendedError;
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 BOOL32
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),DX_reg(context));
874 TRACE(int21, "getting machine name to %p\n", dst);
875 if (gethostname (dst, 15))
876 {
877 WARN(int21,"failed!\n");
878 DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
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 DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
894 return TRUE;
895 }
896 }
897
898 static void INT21_SetCurrentPSP(WORD psp)
899 {
900 #ifdef MZ_SUPPORTED
901 TDB *pTask = hModule ? NULL : (TDB *)GlobalLock16( GetCurrentTask() );
902 NE_MODULE *pModule = (hModule || pTask) ? NE_GetPtr( hModule ? hModule : 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 = hModule ? NULL : (TDB *)GlobalLock16( GetCurrentTask() );
916 NE_MODULE *pModule = (hModule || pTask) ? NE_GetPtr( hModule ? hModule : pTask->hModule ) : NULL;
917
918 GlobalUnlock16( GetCurrentTask() );
919 if (pModule->lpDosTask)
920 return pModule->lpDosTask->psp_seg;
921 else
922 #endif
923 return GetCurrentPDB();
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 * DOS3Call (KERNEL.102)
986 */
987 void WINAPI DOS3Call( CONTEXT *context )
988 {
989 BOOL32 bSetDOSExtendedError = FALSE;
990
991 #if 0
992 TRACE(int21, "AX=%04x BX=%04x CX=%04x DX=%04x "
993 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
994 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
995 SI_reg(context), DI_reg(context),
996 (WORD)DS_reg(context), (WORD)ES_reg(context),
997 EFL_reg(context) );
998 #endif
999
1000 if (AH_reg(context) == 0x59) /* Get extended error info */
1001 {
1002 TRACE(int21, "GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1003 DOS_ExtendedError, DOS_ErrorClass, DOS_ErrorAction, DOS_ErrorLocus);
1004 AX_reg(context) = DOS_ExtendedError;
1005 BH_reg(context) = DOS_ErrorClass;
1006 BL_reg(context) = DOS_ErrorAction;
1007 CH_reg(context) = DOS_ErrorLocus;
1008 return;
1009 }
1010
1011 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1012 {
1013 TRACE(int21, "FLUSH BUFFER AND READ STANDARD INPUT\n");
1014 /* no flush here yet */
1015 AH_reg(context) = AL_reg(context);
1016 }
1017
1018 DOS_ERROR( 0, 0, 0, 0 );
1019 RESET_CFLAG(context); /* Not sure if this is a good idea */
1020
1021 switch(AH_reg(context))
1022 {
1023 case 0x00: /* TERMINATE PROGRAM */
1024 TRACE(int21,"TERMINATE PROGRAM\n");
1025 ExitProcess( 0 );
1026 break;
1027
1028 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1029 case 0x03: /* READ CHARACTER FROM STDAUX */
1030 case 0x04: /* WRITE CHARACTER TO STDAUX */
1031 case 0x05: /* WRITE CHARACTER TO PRINTER */
1032 case 0x0b: /* GET STDIN STATUS */
1033 case 0x0f: /* OPEN FILE USING FCB */
1034 case 0x10: /* CLOSE FILE USING FCB */
1035 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1036 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1037 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1038 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1039 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1040 case 0x23: /* GET FILE SIZE FOR FCB */
1041 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1042 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1043 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1044 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1045 case 0x29: /* PARSE FILENAME INTO FCB */
1046 case 0x54: /* GET VERIFY FLAG */
1047 INT_BARF( context, 0x21 );
1048 break;
1049
1050 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1051 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1052 _lwrite16( 1, &DL_reg(context), 1);
1053 break;
1054
1055 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1056 TRACE(int21,"DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1057 _lread16( 0, &AL_reg(context), 1);
1058 break;
1059
1060 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1061 TRACE(int21,"CHARACTER INPUT WITHOUT ECHO\n");
1062 _lread16( 0, &AL_reg(context), 1);
1063 break;
1064
1065 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1066 TRACE(int21,"WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1067 DS_reg(context),DX_reg(context) );
1068 {
1069 LPSTR data = CTX_SEG_OFF_TO_LIN(context,DS_reg(context),DX_reg(context));
1070 LONG length = strchr(data,'$')-data;
1071 _hwrite16( 1, data, length);
1072 }
1073 break;
1074
1075 case 0x0a: /* BUFFERED INPUT */
1076 {
1077 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1078 DX_reg(context) ));
1079 int res;
1080
1081 TRACE(int21,"BUFFERED INPUT (size=%d)\n",buffer[0]);
1082 if (buffer[1])
1083 TRACE(int21,"Handle old chars in buffer!\n");
1084 res=_lread16( 0, buffer+2,buffer[0]);
1085 buffer[1]=res;
1086 if(buffer[res+1] == '\n')
1087 buffer[res+1] = '\r';
1088 break;
1089 }
1090
1091 case 0x2e: /* SET VERIFY FLAG */
1092 TRACE(int21,"SET VERIFY FLAG ignored\n");
1093 /* we cannot change the behaviour anyway, so just ignore it */
1094 break;
1095
1096 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1097 case 0x1d:
1098 case 0x1e:
1099 case 0x20:
1100 case 0x6b: /* NULL FUNCTION */
1101 AL_reg(context) = 0;
1102 break;
1103
1104 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1105 fLock(context);
1106 break;
1107
1108 case 0x0d: /* DISK BUFFER FLUSH */
1109 TRACE(int21,"DISK BUFFER FLUSH ignored\n");
1110 RESET_CFLAG(context); /* dos 6+ only */
1111 break;
1112
1113 case 0x0e: /* SELECT DEFAULT DRIVE */
1114 TRACE(int21,"SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1115 DRIVE_SetCurrentDrive( DL_reg(context) );
1116 AL_reg(context) = MAX_DOS_DRIVES;
1117 break;
1118
1119 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1120 TRACE(int21,"FIND FIRST MATCHING FILE USING FCB %p\n",
1121 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1122 if (!INT21_FindFirstFCB(context))
1123 {
1124 AL_reg(context) = 0xff;
1125 break;
1126 }
1127 /* else fall through */
1128
1129 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1130 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1131 break;
1132
1133 case 0x13: /* DELETE FILE USING FCB */
1134 DeleteFileFCB(context);
1135 break;
1136
1137 case 0x17: /* RENAME FILE USING FCB */
1138 RenameFileFCB(context);
1139 break;
1140
1141 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1142 AL_reg(context) = DRIVE_GetCurrentDrive();
1143 break;
1144
1145 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1146 {
1147 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1148 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(context),DX_reg(context));
1149 TRACE(int21, "Set DTA: %08lx\n", pTask->dta);
1150 }
1151 break;
1152
1153 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1154 DL_reg(context) = 0;
1155 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1156 break;
1157
1158 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1159 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1160 break;
1161
1162 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1163 GetDrivePB(context, DRIVE_GetCurrentDrive());
1164 break;
1165
1166 case 0x25: /* SET INTERRUPT VECTOR */
1167 INT_CtxSetHandler( context, AL_reg(context),
1168 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1169 DX_reg(context)));
1170 break;
1171
1172 case 0x2a: /* GET SYSTEM DATE */
1173 INT21_GetSystemDate(context);
1174 break;
1175
1176 case 0x2b: /* SET SYSTEM DATE */
1177 FIXME(int21, "SetSystemDate(%02d/%02d/%04d): not allowed\n",
1178 DL_reg(context), DH_reg(context), CX_reg(context) );
1179 AL_reg(context) = 0; /* Let's pretend we succeeded */
1180 break;
1181
1182 case 0x2c: /* GET SYSTEM TIME */
1183 INT21_GetSystemTime(context);
1184 break;
1185
1186 case 0x2d: /* SET SYSTEM TIME */
1187 FIXME(int21, "SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1188 CH_reg(context), CL_reg(context),
1189 DH_reg(context), DL_reg(context) );
1190 AL_reg(context) = 0; /* Let's pretend we succeeded */
1191 break;
1192
1193 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1194 TRACE(int21,"GET DISK TRANSFER AREA ADDRESS\n");
1195 {
1196 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1197 ES_reg(context) = SELECTOROF( pTask->dta );
1198 BX_reg(context) = OFFSETOF( pTask->dta );
1199 }
1200 break;
1201
1202 case 0x30: /* GET DOS VERSION */
1203 TRACE(int21,"GET DOS VERSION %s requested\n",
1204 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1205 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1206 (HIWORD(GetVersion16()) << 8);
1207 #if 0
1208 AH_reg(context) = 0x7;
1209 AL_reg(context) = 0xA;
1210 #endif
1211
1212 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1213 CX_reg(context) = 0x0000;
1214 break;
1215
1216 case 0x31: /* TERMINATE AND STAY RESIDENT */
1217 FIXME(int21,"TERMINATE AND STAY RESIDENT stub\n");
1218 break;
1219
1220 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1221 TRACE(int21,"GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1222 INT21_DriveName( DL_reg(context)));
1223 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1224 break;
1225
1226 case 0x33: /* MULTIPLEXED */
1227 switch (AL_reg(context))
1228 {
1229 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1230 TRACE(int21,"GET CURRENT EXTENDED BREAK STATE stub\n");
1231 DL_reg(context) = 0;
1232 break;
1233
1234 case 0x01: /* SET EXTENDED BREAK STATE */
1235 TRACE(int21,"SET CURRENT EXTENDED BREAK STATE stub\n");
1236 break;
1237
1238 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1239 TRACE(int21,"GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE stub\n");
1240 DL_reg(context) = 0;
1241 break;
1242
1243 case 0x05: /* GET BOOT DRIVE */
1244 TRACE(int21,"GET BOOT DRIVE\n");
1245 DL_reg(context) = 3;
1246 /* c: is Wine's bootdrive (a: is 1)*/
1247 break;
1248
1249 case 0x06: /* GET TRUE VERSION NUMBER */
1250 TRACE(int21,"GET TRUE VERSION NUMBER\n");
1251 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1252 (HIWORD(GetVersion16() << 8));
1253 DX_reg(context) = 0x00;
1254 break;
1255
1256 default:
1257 INT_BARF( context, 0x21 );
1258 break;
1259 }
1260 break;
1261
1262 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1263 TRACE(int21,"GET ADDRESS OF INDOS FLAG\n");
1264 if (!heap) INT21_CreateHeap();
1265 ES_reg(context) = DosHeapHandle;
1266 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1267 break;
1268
1269 case 0x35: /* GET INTERRUPT VECTOR */
1270 TRACE(int21,"GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1271 {
1272 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1273 ES_reg(context) = SELECTOROF(addr);
1274 BX_reg(context) = OFFSETOF(addr);
1275 }
1276 break;
1277
1278 case 0x36: /* GET FREE DISK SPACE */
1279 TRACE(int21,"GET FREE DISK SPACE FOR DRIVE %s\n",
1280 INT21_DriveName( DL_reg(context)));
1281 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1282 break;
1283
1284 case 0x37:
1285 {
1286 unsigned char switchchar='/';
1287 switch (AL_reg(context))
1288 {
1289 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1290 TRACE(int21,"SWITCHAR - GET SWITCH CHARACTER\n");
1291 AL_reg(context) = 0x00; /* success*/
1292 DL_reg(context) = switchchar;
1293 break;
1294 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1295 TRACE(int21,"SWITCHAR - SET SWITCH CHARACTER\n");
1296 switchchar = DL_reg(context);
1297 AL_reg(context) = 0x00; /* success*/
1298 break;
1299 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1300 INT_BARF( context, 0x21 );
1301 break;
1302 }
1303 break;
1304 }
1305
1306 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1307 TRACE(int21,"GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1308 AL_reg(context));
1309 AX_reg(context) = 0x02; /* no country support available */
1310 SET_CFLAG(context);
1311 break;
1312
1313 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1314 TRACE(int21,"MKDIR %s\n",
1315 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1316 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1317 DX_reg(context) ), NULL));
1318 break;
1319
1320 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1321 TRACE(int21,"RMDIR %s\n",
1322 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1323 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1324 DX_reg(context) )));
1325 break;
1326
1327 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1328 TRACE(int21,"CHDIR %s\n",
1329 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1330 bSetDOSExtendedError = !INT21_ChangeDir(context);
1331 break;
1332
1333 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1334 TRACE(int21,"CREAT flag 0x%02x %s\n",CX_reg(context),
1335 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1336 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1337 DX_reg(context) ), CX_reg(context) );
1338 bSetDOSExtendedError = (AX_reg(context) == (WORD)HFILE_ERROR16);
1339 break;
1340
1341 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1342 TRACE(int21,"OPEN mode 0x%02x %s\n",AL_reg(context),
1343 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1344 OpenExistingFile(context);
1345 break;
1346
1347 case 0x3e: /* "CLOSE" - CLOSE FILE */
1348 TRACE(int21,"CLOSE handle %d\n",BX_reg(context));
1349 if ((BX_reg(context)<5)||
1350 /* FIXME: need to improve on those handle conversion macros */
1351 (BX_reg(context)==HFILE32_TO_HFILE16(GetStdHandle(STD_INPUT_HANDLE)))||
1352 (BX_reg(context)==HFILE32_TO_HFILE16(GetStdHandle(STD_OUTPUT_HANDLE)))||
1353 (BX_reg(context)==HFILE32_TO_HFILE16(GetStdHandle(STD_ERROR_HANDLE)))) {
1354 /* hack to make sure stdio isn't closed */
1355 FIXME(int21, "stdio handle closed, need proper conversion\n");
1356 DOS_ExtendedError = 0x06;
1357 bSetDOSExtendedError = TRUE;
1358 } else
1359 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1360 break;
1361
1362 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1363 TRACE(int21,"READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1364 DS_reg(context),DX_reg(context),CX_reg(context) );
1365 {
1366 LONG result;
1367 if (ISV86(context))
1368 result = _hread16( BX_reg(context),
1369 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1370 DX_reg(context) ),
1371 CX_reg(context) );
1372 else
1373 result = WIN16_hread( BX_reg(context),
1374 PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1375 DX_reg(context) ),
1376 CX_reg(context) );
1377 if (result == -1) bSetDOSExtendedError = TRUE;
1378 else AX_reg(context) = (WORD)result;
1379 }
1380 break;
1381
1382 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1383 TRACE(int21,"WRITE from %04lX:%04X to handle %d for %d byte\n",
1384 DS_reg(context),DX_reg(context),BX_reg(context),CX_reg(context) );
1385 {
1386 LONG result = _hwrite16( BX_reg(context),
1387 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1388 DX_reg(context) ),
1389 CX_reg(context) );
1390 if (result == -1) bSetDOSExtendedError = TRUE;
1391 else AX_reg(context) = (WORD)result;
1392 }
1393 break;
1394
1395 case 0x41: /* "UNLINK" - DELETE FILE */
1396 TRACE(int21,"UNLINK%s\n",
1397 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1398 bSetDOSExtendedError = (!DeleteFile32A( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1399 DX_reg(context) )));
1400 break;
1401
1402 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1403 TRACE(int21,"LSEEK handle %d offset %ld from %s\n",
1404 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1405 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1406 "current file position":"end of file");
1407 {
1408 LONG status = _llseek16( BX_reg(context),
1409 MAKELONG(DX_reg(context),CX_reg(context)),
1410 AL_reg(context) );
1411 if (status == -1) bSetDOSExtendedError = TRUE;
1412 else
1413 {
1414 AX_reg(context) = LOWORD(status);
1415 DX_reg(context) = HIWORD(status);
1416 }
1417 }
1418 break;
1419
1420 case 0x43: /* FILE ATTRIBUTES */
1421 switch (AL_reg(context))
1422 {
1423 case 0x00:
1424 TRACE(int21,"GET FILE ATTRIBUTES for %s\n",
1425 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1426 AX_reg(context) = (WORD)GetFileAttributes32A(
1427 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1428 DX_reg(context)));
1429 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1430 else CX_reg(context) = AX_reg(context);
1431 break;
1432
1433 case 0x01:
1434 TRACE(int21,"SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1435 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1436 bSetDOSExtendedError =
1437 (!SetFileAttributes32A( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1438 DX_reg(context)),
1439 CX_reg(context) ));
1440 break;
1441 case 0x02:
1442 TRACE(int21,"GET COMPRESSED FILE SIZE for %s stub\n",
1443 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1444 }
1445 break;
1446
1447 case 0x44: /* IOCTL */
1448 switch (AL_reg(context))
1449 {
1450 case 0x00:
1451 ioctlGetDeviceInfo(context);
1452 break;
1453
1454 case 0x01:
1455 break;
1456 case 0x02:{
1457 FILE_OBJECT *file;
1458 file = FILE_GetFile(HFILE16_TO_HFILE32(BX_reg(context)));
1459 if (!strcasecmp(file->unix_name, "SCSIMGR$"))
1460 ASPI_DOS_HandleInt(context);
1461 FILE_ReleaseFile( file );
1462 break;
1463 }
1464 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1465 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context));*/
1466 int drive = DOS_GET_DRIVE(BL_reg(context));
1467
1468 FIXME(int21,"program tried to write to block device control channel of drive %d:\n",drive);
1469 /* for (i=0;i<CX_reg(context);i++)
1470 fprintf(stdnimp,"%02x ",dataptr[i]);
1471 fprintf(stdnimp,"\n");*/
1472 AX_reg(context)=CX_reg(context);
1473 break;
1474 }
1475 case 0x08: /* Check if drive is removable. */
1476 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1477 INT21_DriveName( BL_reg(context)));
1478 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1479 {
1480 case DRIVE_CANNOTDETERMINE:
1481 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
1482 AX_reg(context) = ER_InvalidDrive;
1483 SET_CFLAG(context);
1484 break;
1485 case DRIVE_REMOVABLE:
1486 AX_reg(context) = 0; /* removable */
1487 break;
1488 default:
1489 AX_reg(context) = 1; /* not removable */
1490 break;
1491 }
1492 break;
1493
1494 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1495 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1496 INT21_DriveName( BL_reg(context)));
1497 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1498 {
1499 case DRIVE_CANNOTDETERMINE:
1500 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
1501 AX_reg(context) = ER_InvalidDrive;
1502 SET_CFLAG(context);
1503 break;
1504 case DRIVE_REMOTE:
1505 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1506 break;
1507 default:
1508 DX_reg(context) = 0; /* FIXME: use driver attr here */
1509 break;
1510 }
1511 break;
1512
1513 case 0x0a: /* check if handle (BX) is remote */
1514 TRACE(int21,"IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1515 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1516 * not set on close
1517 */
1518 DX_reg(context) = 0;
1519 break;
1520
1521 case 0x0b: /* SET SHARING RETRY COUNT */
1522 TRACE(int21,"IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1523 CX_reg(context), DX_reg(context));
1524 if (!CX_reg(context))
1525 {
1526 AX_reg(context) = 1;
1527 SET_CFLAG(context);
1528 break;
1529 }
1530 sharing_pause = CX_reg(context);
1531 if (!DX_reg(context))
1532 sharing_retries = DX_reg(context);
1533 RESET_CFLAG(context);
1534 break;
1535
1536 case 0x0d:
1537 TRACE(int21,"IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1538 INT21_DriveName( BL_reg(context)));
1539 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1540 break;
1541
1542 case 0x0e: /* get logical drive mapping */
1543 TRACE(int21,"IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1544 INT21_DriveName( BL_reg(context)));
1545 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1546 break;
1547
1548 case 0x0F: /* Set logical drive mapping */
1549 {
1550 int drive;
1551 TRACE(int21,"IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1552 INT21_DriveName( BL_reg(context)));
1553 drive = DOS_GET_DRIVE ( BL_reg(context) );
1554 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1555 {
1556 SET_CFLAG(context);
1557 AX_reg(context) = 0x000F; /* invalid drive */
1558 }
1559 break;
1560 }
1561
1562 case 0xe0: /* Sun PC-NFS API */
1563 /* not installed */
1564 break;
1565
1566 default:
1567 INT_BARF( context, 0x21 );
1568 break;
1569 }
1570 break;
1571
1572 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1573 TRACE(int21,"DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1574 bSetDOSExtendedError = ((AX_reg(context) = HFILE32_TO_HFILE16(FILE_Dup(HFILE16_TO_HFILE32(BX_reg(context))))) == (WORD)HFILE_ERROR16);
1575 break;
1576
1577 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1578 TRACE(int21,"FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1579 BX_reg(context),CX_reg(context));
1580 bSetDOSExtendedError = (FILE_Dup2( HFILE16_TO_HFILE32(BX_reg(context)), HFILE16_TO_HFILE32(CX_reg(context)) ) == HFILE_ERROR32);
1581 break;
1582
1583 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1584 TRACE(int21,"CWD - GET CURRENT DIRECTORY for drive %s\n",
1585 INT21_DriveName( DL_reg(context)));
1586 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1587 break;
1588
1589 case 0x48: /* ALLOCATE MEMORY */
1590 TRACE(int21,"ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1591 {
1592 LPVOID *mem;
1593 if (ISV86(context))
1594 {
1595 mem= DOSMEM_GetBlock(0,(DWORD)BX_reg(context)<<4,NULL);
1596 if (mem)
1597 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1598 }
1599 else
1600 {
1601 mem = (LPVOID)GlobalDOSAlloc(BX_reg(context)<<4);
1602 if (mem)
1603 AX_reg(context) = (DWORD)mem&0xffff;
1604 }
1605 if (!mem)
1606 {
1607 SET_CFLAG(context);
1608 AX_reg(context) = 0x0008; /* insufficient memory */
1609 BX_reg(context) = DOSMEM_Available(0)>>4;
1610 }
1611 }
1612 break;
1613
1614 case 0x49: /* FREE MEMORY */
1615 TRACE(int21,"FREE MEMORY segment %04lX\n", ES_reg(context));
1616 {
1617 BOOL32 ret;
1618 if (ISV86(context))
1619 ret= DOSMEM_FreeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4));
1620 else
1621 {
1622 ret = !GlobalDOSFree(ES_reg(context));
1623 /* If we don't reset ES_reg, we will fail in the relay code */
1624 ES_reg(context)=ret;
1625 }
1626 if (!ret)
1627 {
1628 TRACE(int21,"FREE MEMORY failed\n");
1629 SET_CFLAG(context);
1630 AX_reg(context) = 0x0009; /* memory block address invalid */
1631 }
1632 }
1633 break;
1634
1635 case 0x4a: /* RESIZE MEMORY BLOCK */
1636 TRACE(int21,"RESIZE MEMORY segment %04lX to %d paragraphs\n", ES_reg(context), BX_reg(context));
1637 if (!ISV86(context))
1638 FIXME(int21,"RESIZE MEMORY probably insufficent implementation. Expect crash soon\n");
1639 {
1640 LPVOID *mem = DOSMEM_ResizeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4),
1641 BX_reg(context)<<4,NULL);
1642 if (mem)
1643 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1644 else {
1645 SET_CFLAG(context);
1646 AX_reg(context) = 0x0008; /* insufficient memory */
1647 BX_reg(context) = DOSMEM_Available(0)>>4; /* not quite right */
1648 }
1649 }
1650 break;
1651
1652 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1653 TRACE(int21,"EXEC %s\n",
1654 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context) ));
1655 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1656 DX_reg(context) ),
1657 SW_NORMAL );
1658 if (AX_reg(context) < 32) SET_CFLAG(context);
1659 break;
1660
1661 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1662 TRACE(int21,"EXIT with return code %d\n",AL_reg(context));
1663 ExitProcess( AL_reg(context) );
1664 break;
1665
1666 case 0x4d: /* GET RETURN CODE */
1667 TRACE(int21,"GET RETURN CODE (ERRORLEVEL)\n");
1668 AX_reg(context) = 0; /* normal exit */
1669 break;
1670
1671 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1672 TRACE(int21,"FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1673 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1674 if (!INT21_FindFirst(context)) break;
1675 /* fall through */
1676
1677 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1678 TRACE(int21,"FINDNEXT\n");
1679 if (!INT21_FindNext(context))
1680 {
1681 DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Disk );
1682 AX_reg(context) = ER_NoMoreFiles;
1683 SET_CFLAG(context);
1684 }
1685 else AX_reg(context) = 0; /* OK */
1686 break;
1687 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1688 TRACE(int21, "SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1689 INT21_SetCurrentPSP(BX_reg(context));
1690 break;
1691 case 0x51: /* GET PSP ADDRESS */
1692 TRACE(int21,"GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1693 /* FIXME: should we return the original DOS PSP upon */
1694 /* Windows startup ? */
1695 BX_reg(context) = INT21_GetCurrentPSP();
1696 break;
1697 case 0x62: /* GET PSP ADDRESS */
1698 TRACE(int21,"GET CURRENT PSP ADDRESS\n");
1699 /* FIXME: should we return the original DOS PSP upon */
1700 /* Windows startup ? */
1701 BX_reg(context) = INT21_GetCurrentPSP();
1702 break;
1703
1704 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1705 TRACE(int21,"SYSVARS - GET LIST OF LISTS\n");
1706 {
1707 SEGPTR lol;
1708 lol = INT21_GetListOfLists();
1709 ES_reg(context) = HIWORD(lol);
1710 BX_reg(context) = LOWORD(lol);
1711 }
1712 break;
1713
1714 case 0x56: /* "RENAME" - RENAME FILE */
1715 TRACE(int21,"RENAME %s to %s\n",
1716 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)),
1717 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),DI_reg(context)));
1718 bSetDOSExtendedError =
1719 (!MoveFile32A( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)),
1720 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),DI_reg(context))));
1721 break;
1722
1723 case 0x57: /* FILE DATE AND TIME */
1724 switch (AL_reg(context))
1725 {
1726 case 0x00: /* Get */
1727 {
1728 FILETIME filetime;
1729 TRACE(int21,"GET FILE DATE AND TIME for handle %d\n",
1730 BX_reg(context));
1731 if (!GetFileTime( HFILE16_TO_HFILE32(BX_reg(context)), NULL, NULL, &filetime ))
1732 bSetDOSExtendedError = TRUE;
1733 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1734 &CX_reg(context) );
1735 }
1736 break;
1737
1738 case 0x01: /* Set */
1739 {
1740 FILETIME filetime;
1741 TRACE(int21,"SET FILE DATE AND TIME for handle %d\n",
1742 BX_reg(context));
1743 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1744 &filetime );
1745 bSetDOSExtendedError =
1746 (!SetFileTime( BX_reg(context), NULL, NULL, &filetime ));
1747 }
1748 break;
1749 }
1750 break;
1751
1752 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1753 TRACE(int21,"GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1754 AL_reg(context));
1755 switch (AL_reg(context))
1756 {
1757 case 0x00:
1758 AX_reg(context) = 1;
1759 break;
1760 case 0x02:
1761 AX_reg(context) = 0;
1762 break;
1763 case 0x01:
1764 case 0x03:
1765 break;
1766 }
1767 RESET_CFLAG(context);
1768 break;
1769
1770 case 0x5a: /* CREATE TEMPORARY FILE */
1771 TRACE(int21,"CREATE TEMPORARY FILE\n");
1772 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1773 break;
1774
1775 case 0x5b: /* CREATE NEW FILE */
1776 TRACE(int21,"CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1777 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
1778 bSetDOSExtendedError = ((AX_reg(context) =
1779 HFILE32_TO_HFILE16(_lcreat_uniq( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)), 0 )))
1780 == (WORD)HFILE_ERROR16);
1781 break;
1782
1783 case 0x5d: /* NETWORK */
1784 FIXME(int21,"Function 0x%04x not implemented.\n", AX_reg (context));
1785 /* Fix the following while you're at it. */
1786 DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
1787 bSetDOSExtendedError = TRUE;
1788 break;
1789
1790 case 0x5e:
1791 bSetDOSExtendedError = INT21_networkfunc (context);
1792 break;
1793
1794 case 0x5f: /* NETWORK */
1795 switch (AL_reg(context))
1796 {
1797 case 0x07: /* ENABLE DRIVE */
1798 TRACE(int21,"ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1799 if (!DRIVE_Enable( DL_reg(context) ))
1800 {
1801 DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
1802 bSetDOSExtendedError = TRUE;
1803 }
1804 break;
1805
1806 case 0x08: /* DISABLE DRIVE */
1807 TRACE(int21,"DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1808 if (!DRIVE_Disable( DL_reg(context) ))
1809 {
1810 DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
1811 bSetDOSExtendedError = TRUE;
1812 }
1813 break;
1814
1815 default:
1816 /* network software not installed */
1817 TRACE(int21,"NETWORK function AX=%04x not implemented\n",AX_reg(context));
1818 DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
1819 bSetDOSExtendedError = TRUE;
1820 break;
1821 }
1822 break;
1823
1824 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1825 TRACE(int21,"TRUENAME %s\n",
1826 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),SI_reg(context)));
1827 {
1828 if (!GetFullPathName32A( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1829 SI_reg(context)), 128,
1830 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
1831 DI_reg(context)),NULL))
1832 bSetDOSExtendedError = TRUE;
1833 else AX_reg(context) = 0;
1834 }
1835 break;
1836
1837 case 0x61: /* UNUSED */
1838 case 0x63: /* UNUSED */
1839 case 0x64: /* OS/2 DOS BOX */
1840 INT_BARF( context, 0x21 );
1841 SET_CFLAG(context);
1842 break;
1843
1844 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
1845 extern WORD WINE_LanguageId;
1846 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, ES_reg(context),DI_reg(context));
1847 TRACE(int21,"GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
1848 BX_reg(context), DX_reg(context));
1849 switch (AL_reg(context)) {
1850 case 0x01:
1851 TRACE(int21,"\tget general internationalization info\n");
1852 dataptr[0] = 0x1;
1853 *(WORD*)(dataptr+1) = 41;
1854 *(WORD*)(dataptr+3) = WINE_LanguageId;
1855 *(WORD*)(dataptr+5) = CodePage;
1856 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
1857 break;
1858 case 0x06:
1859 TRACE(int21,"\tget pointer to collating sequence table\n");
1860 dataptr[0] = 0x06;
1861 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
1862 CX_reg(context) = 258;/*FIXME: size of table?*/
1863 break;
1864 default:
1865 TRACE(int21,"\tunimplemented function %d\n",AL_reg(context));
1866 INT_BARF( context, 0x21 );
1867 SET_CFLAG(context);
1868 break;
1869 }
1870 break;
1871 }
1872 case 0x66: /* GLOBAL CODE PAGE TABLE */
1873 switch (AL_reg(context))
1874 {
1875 case 0x01:
1876 TRACE(int21,"GET GLOBAL CODE PAGE TABLE\n");
1877 DX_reg(context) = BX_reg(context) = CodePage;
1878 RESET_CFLAG(context);
1879 break;
1880 case 0x02:
1881 TRACE(int21,"SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
1882 BX_reg(context),DX_reg(context));
1883 CodePage = BX_reg(context);
1884 RESET_CFLAG(context);
1885 break;
1886 }
1887 break;
1888
1889 case 0x67: /* SET HANDLE COUNT */
1890 TRACE(int21,"SET HANDLE COUNT to %d\n",BX_reg(context) );
1891 SetHandleCount16( BX_reg(context) );
1892 if (DOS_ExtendedError) bSetDOSExtendedError = TRUE;
1893 break;
1894
1895 case 0x68: /* "FFLUSH" - COMMIT FILE */
1896 case 0x6a: /* COMMIT FILE */
1897 TRACE(int21,"FFLUSH/COMMIT handle %d\n",BX_reg(context));
1898 bSetDOSExtendedError = (!FlushFileBuffers( HFILE16_TO_HFILE32(BX_reg(context)) ));
1899 break;
1900
1901 case 0x69: /* DISK SERIAL NUMBER */
1902 switch (AL_reg(context))
1903 {
1904 case 0x00:
1905 TRACE(int21,"GET DISK SERIAL NUMBER for drive %s\n",
1906 INT21_DriveName(BL_reg(context)));
1907 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
1908 else AX_reg(context) = 0;
1909 break;
1910
1911 case 0x01:
1912 TRACE(int21,"SET DISK SERIAL NUMBER for drive %s\n",
1913 INT21_DriveName(BL_reg(context)));
1914 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
1915 else AX_reg(context) = 1;
1916 break;
1917 }
1918 break;
1919
1920 case 0x6C: /* Extended Open/Create*/
1921 TRACE(int21,"EXTENDED OPEN/CREATE %s\n",
1922 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DI_reg(context)));
1923 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
1924 break;
1925
1926 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
1927 if ((GetVersion32()&0xC0000004)!=0xC0000004) {
1928 /* not supported on anything but Win95 */
1929 TRACE(int21,"LONG FILENAME functions supported only by win95\n");
1930 SET_CFLAG(context);
1931 AL_reg(context) = 0;
1932 } else
1933 switch(AL_reg(context))
1934 {
1935 case 0x39: /* Create directory */
1936 TRACE(int21,"LONG FILENAME - MAKE DIRECTORY %s\n",
1937 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)));
1938 bSetDOSExtendedError = (!CreateDirectory32A(
1939 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1940 DX_reg(context) ), NULL));
1941 break;
1942 case 0x3a: /* Remove directory */
1943 TRACE(int21,"LONG FILENAME - REMOVE DIRECTORY %s\n",
1944 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)));
1945 bSetDOSExtendedError = (!RemoveDirectory32A(
1946 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1947 DX_reg(context) )));
1948 break;
1949 case 0x43: /* Get/Set file attributes */
1950 TRACE(int21,"LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
1951 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)));
1952 switch (BL_reg(context))
1953 {
1954 case 0x00: /* Get file attributes */
1955 TRACE(int21,"\tretrieve attributes\n");
1956 CX_reg(context) = (WORD)GetFileAttributes32A(
1957 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1958 DX_reg(context)));
1959 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1960 break;
1961 case 0x01:
1962 TRACE(int21,"\tset attributes 0x%04x\n",CX_reg(context));
1963 bSetDOSExtendedError = (!SetFileAttributes32A(
1964 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1965 DX_reg(context)),
1966 CX_reg(context) ) );
1967 break;
1968 default:
1969 FIXME(int21, "Unimplemented long file name function:\n");
1970 INT_BARF( context, 0x21 );
1971 SET_CFLAG(context);
1972 AL_reg(context) = 0;
1973 break;
1974 }
1975 break;
1976 case 0x47: /* Get current directory */
1977 TRACE(int21," LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
1978 INT21_DriveName(DL_reg(context)));
1979 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1980 break;
1981
1982 case 0x4e: /* Find first file */
1983 TRACE(int21," LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
1984 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)));
1985 /* FIXME: use attributes in CX */
1986 if ((AX_reg(context) = FindFirstFile16(
1987 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)),
1988 (WIN32_FIND_DATA32A *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
1989 DI_reg(context))))
1990 == INVALID_HANDLE_VALUE16)
1991 bSetDOSExtendedError = TRUE;
1992 break;
1993 case 0x4f: /* Find next file */
1994 TRACE(int21,"LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
1995 BX_reg(context));
1996 if (!FindNextFile16( BX_reg(context),
1997 (WIN32_FIND_DATA32A *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
1998 DI_reg(context))))
1999 bSetDOSExtendedError = TRUE;
2000 break;
2001 case 0xa1: /* Find close */
2002 TRACE(int21,"LONG FILENAME - FINDCLOSE for handle %d\n",
2003 BX_reg(context));
2004 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2005 break;
2006 case 0xa0:
2007 TRACE(int21,"LONG FILENAME - GET VOLUME INFORMATION for drive %s stub\n",
2008 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),DX_reg(context)));
2009 break;
2010 case 0x60:
2011 switch(CL_reg(context))
2012 {
2013 case 0x01: /*Get short filename or path */
2014 if (!GetShortPathName32A
2015 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2016 SI_reg(context)),
2017 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2018 DI_reg(context)), 67))
2019 bSetDOSExtendedError = TRUE;
2020 else AX_reg(context) = 0;
2021 break;
2022 case 0x02: /*Get canonical long filename or path */
2023 if (!GetFullPathName32A
2024 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2025 SI_reg(context)), 128,
2026 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2027 DI_reg(context)),NULL))
2028 bSetDOSExtendedError = TRUE;
2029 else AX_reg(context) = 0;
2030 break;
2031 default:
2032 FIXME(int21, "Unimplemented long file name function:\n");
2033 INT_BARF( context, 0x21 );
2034 SET_CFLAG(context);
2035 AL_reg(context) = 0;
2036 break;
2037 }
2038 break;
2039 case 0x6c: /* Create or open file */
2040 TRACE(int21,"LONG FILENAME - CREATE OR OPEN FILE %s\n",
2041 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), SI_reg(context)));
2042 /* translate Dos 7 action to Dos 6 action */
2043 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2044 break;
2045
2046 case 0x3b: /* Change directory */
2047 TRACE(int21,"LONG FILENAME - CHANGE DIRECTORY %s\n",
2048 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
2049 if (!SetCurrentDirectory32A(CTX_SEG_OFF_TO_LIN(context,
2050 DS_reg(context),
2051 DX_reg(context)
2052 ))
2053 ) {
2054 SET_CFLAG(context);
2055 AL_reg(context) = DOS_ExtendedError;
2056 }
2057 break;
2058 case 0x41: /* Delete file */
2059 TRACE(int21,"LONG FILENAME - DELETE FILE %s\n",
2060 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)));
2061 if (!DeleteFile32A(CTX_SEG_OFF_TO_LIN(context,
2062 DS_reg(context),
2063 DX_reg(context))
2064 )) {
2065 SET_CFLAG(context);
2066 AL_reg(context) = DOS_ExtendedError;
2067 }
2068 break;
2069 case 0x56: /* Move (rename) file */
2070 TRACE(int21,"LONG FILENAME - RENAME FILE %s to %s stub\n",
2071 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), DX_reg(context)),
2072 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context), DI_reg(context)));
2073 default:
2074 FIXME(int21, "Unimplemented long file name function:\n");
2075 INT_BARF( context, 0x21 );
2076 SET_CFLAG(context);
2077 AL_reg(context) = 0;
2078 break;
2079 }
2080 break;
2081
2082 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2083 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2084 case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */
2085 TRACE(int21,"windows95 function AX %04x\n",
2086 AX_reg(context));
2087 WARN(int21, " returning unimplemented\n");
2088 SET_CFLAG(context);
2089 AL_reg(context) = 0;
2090 break;
2091
2092 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2093 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2094 break;
2095
2096 default:
2097 INT_BARF( context, 0x21 );
2098 break;
2099
2100 } /* END OF SWITCH */
2101
2102 if( bSetDOSExtendedError ) /* set general error condition */
2103 {
2104 AX_reg(context) = DOS_ExtendedError;
2105 SET_CFLAG(context);
2106 }
2107
2108 if ((EFL_reg(context) & 0x0001))
2109 TRACE(int21, "failed, errorcode 0x%02x class 0x%02x action 0x%02x locus %02x\n",
2110 DOS_ExtendedError, DOS_ErrorClass, DOS_ErrorAction, DOS_ErrorLocus);
2111
2112 TRACE(int21, "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2113 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2114 AX_reg(context), BX_reg(context), CX_reg(context),
2115 DX_reg(context), SI_reg(context), DI_reg(context),
2116 (WORD)DS_reg(context), (WORD)ES_reg(context),
2117 EFL_reg(context));
2118 }
2119
2120 FARPROC16 WINAPI GetSetKernelDOSProc(FARPROC16 DosProc)
2121 {
2122 FIXME(int21, "(DosProc=0x%08x): stub\n", (UINT32)DosProc);
2123 return NULL;
2124 }
2125
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