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Send HDN_ITEMCHANGING and HDN_ITEMCHANGED when resizing.
[wine/multimedia.git] / msdos / int21.c
blobb1a7d736854e63e68ad95ef0601e0118f1210d52
1 /*
2 * DOS interrupt 21h handler
3 */
4
5 #include "config.h"
6
7 #include <time.h>
8 #include <fcntl.h>
9 #include <errno.h>
10 #include <stdlib.h>
11 #ifdef HAVE_SYS_FILE_H
12 # include <sys/file.h>
13 #endif
14 #include <string.h>
15 #include <sys/stat.h>
16 #include <sys/time.h>
17 #include <sys/types.h>
18 #include <unistd.h>
19 #include <utime.h>
20 #include <ctype.h>
21 #include "windef.h"
22 #include "winbase.h"
23 #include "ntddk.h"
24 #include "wingdi.h"
25 #include "winuser.h" /* SW_NORMAL */
26 #include "wine/winbase16.h"
27 #include "winerror.h"
28 #include "drive.h"
29 #include "file.h"
30 #include "heap.h"
31 #include "msdos.h"
32 #include "ldt.h"
33 #include "options.h"
34 #include "miscemu.h"
35 #include "task.h"
36 #include "dosexe.h" /* for the MZ_SUPPORTED define */
37 #include "debugtools.h"
38 #include "console.h"
39
40 DEFAULT_DEBUG_CHANNEL(int21)
41 #if defined(__svr4__) || defined(_SCO_DS)
42 /* SVR4 DOESNT do locking the same way must implement properly */
43 #define LOCK_EX 0
44 #define LOCK_SH 1
45 #define LOCK_NB 8
46 #endif
47
48
49 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
50
51 /* Define the drive parameter block, as used by int21/1F
52 * and int21/32. This table can be accessed through the
53 * global 'dpb' pointer, which points into the local dos
54 * heap.
55 */
56 struct DPB
57 {
58 BYTE drive_num; /* 0=A, etc. */
59 BYTE unit_num; /* Drive's unit number (?) */
60 WORD sector_size; /* Sector size in bytes */
61 BYTE high_sector; /* Highest sector in a cluster */
62 BYTE shift; /* Shift count (?) */
63 WORD reserved; /* Number of reserved sectors at start */
64 BYTE num_FAT; /* Number of FATs */
65 WORD dir_entries; /* Number of root dir entries */
66 WORD first_data; /* First data sector */
67 WORD high_cluster; /* Highest cluster number */
68 WORD sectors_in_FAT; /* Number of sectors per FAT */
69 WORD start_dir; /* Starting sector of first dir */
70 DWORD driver_head; /* Address of device driver header (?) */
71 BYTE media_ID; /* Media ID */
72 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
73 DWORD next; /* Pointer to next DPB in list */
74 WORD free_search; /* Free cluster search start */
75 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
76 };
77
78 struct EDPB /* FAT32 extended Drive Parameter Block */
79 { /* from Ralf Brown's Interrupt List */
80 struct DPB dpb; /* first 24 bytes = original DPB */
81
82 BYTE edpb_flags; /* undocumented/unknown flags */
83 DWORD next_edpb; /* pointer to next EDPB */
84 WORD free_cluster; /* cluster to start search for free space on write, typically
85 the last cluster allocated */
86 WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
87 WORD clusters_free_hi; /* hiword of clusters_free */
88 WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
89 /* bits 0-3 = 0-based number of the active FAT */
90 WORD info_sector; /* sector number of file system info sector, or FFFF for none */
91 WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
92 DWORD first_cluster; /* sector number of the first cluster */
93 DWORD max_cluster; /* sector number of the last cluster */
94 DWORD fat_clusters; /* number of clusters occupied by FAT */
95 DWORD root_cluster; /* cluster number of start of root directory */
96 DWORD free_cluster2; /* same as free_cluster: cluster at which to start
97 search for free space when writing */
98
99 };
100
101 WORD CodePage = 437;
102 DWORD dpbsegptr;
103
104 struct DosHeap {
105 BYTE InDosFlag;
106 BYTE mediaID;
107 BYTE biosdate[8];
108 struct DPB dpb;
109 BYTE DummyDBCSLeadTable[6];
110 };
111 static struct DosHeap *heap;
112 static WORD DosHeapHandle;
113
114 extern char TempDirectory[];
115
116 static BOOL INT21_CreateHeap(void)
117 {
118 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
119 {
120 WARN("Out of memory\n");
121 return FALSE;
122 }
123 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
124 dpbsegptr = PTR_SEG_OFF_TO_SEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
125 heap->InDosFlag = 0;
126 strcpy(heap->biosdate, "01/01/80");
127 memset(heap->DummyDBCSLeadTable, 0, 6);
128 return TRUE;
129 }
130
131 static BYTE *GetCurrentDTA( CONTEXT86 *context )
132 {
133 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
134
135 /* FIXME: This assumes DTA was set correctly! */
136 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
137 (DWORD)OFFSETOF(pTask->dta) );
138 }
139
140
141 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
142 /* limited == TRUE is used with INT 0x21/0x440d */
143 {
144 if (drive > 1) {
145 setword(data, 512);
146 data[2] = 2;
147 setword(&data[3], 0);
148 data[5] = 2;
149 setword(&data[6], 240);
150 setword(&data[8], 64000);
151 data[0x0a] = 0xf8;
152 setword(&data[0x0b], 40);
153 setword(&data[0x0d], 56);
154 setword(&data[0x0f], 2);
155 setword(&data[0x11], 0);
156 if (!limited) {
157 setword(&data[0x1f], 800);
158 data[0x21] = 5;
159 setword(&data[0x22], 1);
160 }
161 } else { /* 1.44mb */
162 setword(data, 512);
163 data[2] = 2;
164 setword(&data[3], 0);
165 data[5] = 2;
166 setword(&data[6], 240);
167 setword(&data[8], 2880);
168 data[0x0a] = 0xf8;
169 setword(&data[0x0b], 6);
170 setword(&data[0x0d], 18);
171 setword(&data[0x0f], 2);
172 setword(&data[0x11], 0);
173 if (!limited) {
174 setword(&data[0x1f], 80);
175 data[0x21] = 7;
176 setword(&data[0x22], 2);
177 }
178 }
179 }
180
181 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
182 {
183 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
184 char root[] = "A:\\";
185
186 *root += DOS_GET_DRIVE( DL_reg(context) );
187 if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
188 &free_clusters, &total_clusters )) return 0;
189 AX_reg(context) = cluster_sectors;
190 BX_reg(context) = free_clusters;
191 CX_reg(context) = sector_bytes;
192 DX_reg(context) = total_clusters;
193 return 1;
194 }
195
196 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
197 {
198 if (!INT21_GetFreeDiskSpace( context )) return 0;
199 if (!heap && !INT21_CreateHeap()) return 0;
200 heap->mediaID = 0xf0;
201 context->SegDs = DosHeapHandle;
202 BX_reg(context) = (int)&heap->mediaID - (int)heap;
203 return 1;
204 }
205
206 static int FillInDrivePB( int drive )
207 {
208 if(!DRIVE_IsValid(drive))
209 {
210 SetLastError( ERROR_INVALID_DRIVE );
211 return 0;
212 }
213 else if (heap || INT21_CreateHeap())
214 {
215 /* FIXME: I have no idea what a lot of this information should
216 * say or whether it even really matters since we're not allowing
217 * direct block access. However, some programs seem to depend on
218 * getting at least _something_ back from here. The 'next' pointer
219 * does worry me, though. Should we have a complete table of
220 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
221 */
222 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
223 heap->dpb.sector_size = 512;
224 heap->dpb.high_sector = 1;
225 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
226 heap->dpb.reserved = 0;
227 heap->dpb.num_FAT = 1;
228 heap->dpb.dir_entries = 2;
229 heap->dpb.first_data = 2;
230 heap->dpb.high_cluster = 64000;
231 heap->dpb.sectors_in_FAT = 1;
232 heap->dpb.start_dir = 1;
233 heap->dpb.driver_head = 0;
234 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
235 heap->dpb.access_flag = 0;
236 heap->dpb.next = 0;
237 heap->dpb.free_search = 0;
238 heap->dpb.free_clusters = 0xFFFF; /* unknown */
239 return 1;
240 }
241
242 return 0;
243 }
244
245 static void GetDrivePB( CONTEXT86 *context, int drive )
246 {
247 if (FillInDrivePB( drive ))
248 {
249 AL_reg(context) = 0x00;
250 context->SegDs = SELECTOROF(dpbsegptr);
251 BX_reg(context) = OFFSETOF(dpbsegptr);
252 }
253 else
254 {
255 AX_reg(context) = 0x00ff;
256 }
257 }
258
259
260 static void ioctlGetDeviceInfo( CONTEXT86 *context )
261 {
262 int curr_drive;
263 const DOS_DEVICE *dev;
264
265 TRACE("(%d)\n", BX_reg(context));
266
267 RESET_CFLAG(context);
268
269 /* DOS device ? */
270 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )))
271 {
272 DX_reg(context) = dev->flags;
273 return;
274 }
275
276 /* it seems to be a file */
277 curr_drive = DRIVE_GetCurrentDrive();
278 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
279 /* no floppy */
280 /* bits 0-5 are current drive
281 * bit 6 - file has NOT been written..FIXME: correct?
282 * bit 8 - generate int24 if no diskspace on write/ read past end of file
283 * bit 11 - media not removable
284 * bit 14 - don't set file date/time on closing
285 * bit 15 - file is remote
286 */
287 }
288
289 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
290 {
291 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
292 int drive = DOS_GET_DRIVE( BL_reg(context) );
293
294 if (!DRIVE_IsValid(drive))
295 {
296 SetLastError( ERROR_FILE_NOT_FOUND );
297 return TRUE;
298 }
299
300 if (CH_reg(context) != 0x08)
301 {
302 INT_BARF( context, 0x21 );
303 return FALSE;
304 }
305
306 switch (CL_reg(context))
307 {
308 case 0x4a: /* lock logical volume */
309 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
310 break;
311
312 case 0x60: /* get device parameters */
313 /* used by w4wgrp's winfile */
314 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
315 dataptr[0] = 0x04;
316 dataptr[6] = 0; /* media type */
317 if (drive > 1)
318 {
319 dataptr[1] = 0x05; /* fixed disk */
320 setword(&dataptr[2], 0x01); /* non removable */
321 setword(&dataptr[4], 0x300); /* # of cylinders */
322 }
323 else
324 {
325 dataptr[1] = 0x07; /* block dev, floppy */
326 setword(&dataptr[2], 0x02); /* removable */
327 setword(&dataptr[4], 80); /* # of cylinders */
328 }
329 CreateBPB(drive, &dataptr[7], TRUE);
330 RESET_CFLAG(context);
331 break;
332
333 case 0x41: /* write logical device track */
334 case 0x61: /* read logical device track */
335 {
336 BYTE drive = BL_reg(context) ?
337 BL_reg(context) : DRIVE_GetCurrentDrive();
338 WORD head = *(WORD *)dataptr+1;
339 WORD cyl = *(WORD *)dataptr+3;
340 WORD sect = *(WORD *)dataptr+5;
341 WORD nrsect = *(WORD *)dataptr+7;
342 BYTE *data = (BYTE *)dataptr+9;
343 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
344
345 raw_func = (CL_reg(context) == 0x41) ?
346 DRIVE_RawWrite : DRIVE_RawRead;
347
348 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
349 RESET_CFLAG(context);
350 else
351 {
352 AX_reg(context) = 0x1e; /* read fault */
353 SET_CFLAG(context);
354 }
355 }
356 break;
357 case 0x66:/* get disk serial number */
358 {
359 char label[12],fsname[9],path[4];
360 DWORD serial;
361
362 strcpy(path,"x:\\");path[0]=drive+'A';
363 GetVolumeInformationA(
364 path,label,12,&serial,NULL,NULL,fsname,9
365 );
366 *(WORD*)dataptr = 0;
367 memcpy(dataptr+2,&serial,4);
368 memcpy(dataptr+6,label ,11);
369 memcpy(dataptr+17,fsname,8);
370 }
371 break;
372
373 case 0x6a:
374 TRACE("logical volume %d unlocked.\n",drive);
375 break;
376
377 case 0x6f:
378 memset(dataptr+1, '\0', dataptr[0]-1);
379 dataptr[1] = dataptr[0];
380 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
381 dataptr[3] = 0xFF; /* no physical drive */
382 break;
383
384 case 0x72:
385 /* Trail on error implementation */
386 AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_CANNOTDETERMINE ? 0x0f : 0x01;
387 SET_CFLAG(context); /* Seems to be set all the time */
388 break;
389
390 default:
391 INT_BARF( context, 0x21 );
392 }
393 return FALSE;
394 }
395
396 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
397 {
398 char *filename =
399 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
400 char *fcb =
401 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
402 char *buffer, *s, *d;
403
404 AL_reg(context) = 0xff; /* failed */
405
406 TRACE("filename: '%s'\n", filename);
407
408 buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
409
410 s = filename;
411 d = buffer;
412 while (*s)
413 {
414 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
415 *d++ = *s++;
416 else
417 break;
418 }
419
420 *d = '\0';
421 DOSFS_ToDosFCBFormat(buffer, fcb + 1);
422 *fcb = 0;
423 TRACE("FCB: '%s'\n", ((CHAR *)fcb + 1));
424
425 HeapFree( GetProcessHeap(), 0, buffer);
426
427 AL_reg(context) =
428 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
429
430 /* point DS:SI to first unparsed character */
431 SI_reg(context) += (int)s - (int)filename;
432 }
433
434 static void INT21_GetSystemDate( CONTEXT86 *context )
435 {
436 SYSTEMTIME systime;
437 GetLocalTime( &systime );
438 CX_reg(context) = systime.wYear;
439 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
440 AX_reg(context) = systime.wDayOfWeek;
441 }
442
443 static void INT21_GetSystemTime( CONTEXT86 *context )
444 {
445 SYSTEMTIME systime;
446 GetLocalTime( &systime );
447 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
448 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
449 }
450
451 /* Many calls translate a drive argument like this:
452 drive number (00h = default, 01h = A:, etc)
453 */
454 static char drivestring[]="default";
455
456 char *INT21_DriveName(int drive)
457 {
458
459 if(drive >0)
460 {
461 drivestring[0]= (unsigned char)drive + '@';
462 drivestring[1]=':';
463 drivestring[2]=0;
464 }
465 return drivestring;
466 }
467 static BOOL INT21_CreateFile( CONTEXT86 *context )
468 {
469 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
470 context->Edx ), CX_reg(context) );
471 return (AX_reg(context) == (WORD)HFILE_ERROR16);
472 }
473
474 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
475 {
476 /* Mask off all flags not explicitly allowed by the doc */
477 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
478 return FILE_AllocDosHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
479 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
480 CREATE_NEW, attr, -1 ));
481 }
482
483 static void OpenExistingFile( CONTEXT86 *context )
484 {
485 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
486 AL_reg(context) );
487 if (AX_reg(context) == (WORD)HFILE_ERROR16)
488 {
489 AX_reg(context) = GetLastError();
490 SET_CFLAG(context);
491 }
492 }
493
494 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
495 {
496 BOOL bExtendedError = FALSE;
497 BYTE action = DL_reg(context);
498
499 /* Shuffle arguments to call OpenExistingFile */
500 AL_reg(context) = BL_reg(context);
501 DX_reg(context) = SI_reg(context);
502 /* BX,CX and DX should be preserved */
503 OpenExistingFile(context);
504
505 if ((context->EFlags & 0x0001) == 0) /* File exists */
506 {
507 UINT16 uReturnCX = 0;
508
509 /* Now decide what do do */
510
511 if ((action & 0x07) == 0)
512 {
513 _lclose16( AX_reg(context) );
514 AX_reg(context) = 0x0050; /*File exists*/
515 SET_CFLAG(context);
516 WARN("extended open/create: failed because file exists \n");
517 }
518 else if ((action & 0x07) == 2)
519 {
520 /* Truncate it, but first check if opened for write */
521 if ((BL_reg(context) & 0x0007)== 0)
522 {
523 _lclose16( AX_reg(context) );
524 WARN("extended open/create: failed, trunc on ro file\n");
525 AX_reg(context) = 0x000C; /*Access code invalid*/
526 SET_CFLAG(context);
527 }
528 else
529 {
530 TRACE("extended open/create: Closing before truncate\n");
531 if (_lclose16( AX_reg(context) ))
532 {
533 WARN("extended open/create: close before trunc failed\n");
534 AX_reg(context) = 0x0019; /*Seek Error*/
535 CX_reg(context) = 0;
536 SET_CFLAG(context);
537 }
538 /* Shuffle arguments to call CreateFile */
539
540 TRACE("extended open/create: Truncating\n");
541 AL_reg(context) = BL_reg(context);
542 /* CX is still the same */
543 DX_reg(context) = SI_reg(context);
544 bExtendedError = INT21_CreateFile(context);
545
546 if (context->EFlags & 0x0001) /*no file open, flags set */
547 {
548 WARN("extended open/create: trunc failed\n");
549 return bExtendedError;
550 }
551 uReturnCX = 0x3;
552 }
553 }
554 else uReturnCX = 0x1;
555
556 CX_reg(context) = uReturnCX;
557 }
558 else /* file does not exist */
559 {
560 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
561 if ((action & 0xF0)== 0)
562 {
563 CX_reg(context) = 0;
564 SET_CFLAG(context);
565 WARN("extended open/create: failed, file dosen't exist\n");
566 }
567 else
568 {
569 /* Shuffle arguments to call CreateFile */
570 TRACE("extended open/create: Creating\n");
571 AL_reg(context) = BL_reg(context);
572 /* CX should still be the same */
573 DX_reg(context) = SI_reg(context);
574 bExtendedError = INT21_CreateFile(context);
575 if (context->EFlags & 0x0001) /*no file open, flags set */
576 {
577 WARN("extended open/create: create failed\n");
578 return bExtendedError;
579 }
580 CX_reg(context) = 2;
581 }
582 }
583
584 return bExtendedError;
585 }
586
587
588 static BOOL INT21_ChangeDir( CONTEXT86 *context )
589 {
590 int drive;
591 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
592
593 TRACE("changedir %s\n", dirname);
594 if (dirname[0] && (dirname[1] == ':'))
595 {
596 drive = toupper(dirname[0]) - 'A';
597 dirname += 2;
598 }
599 else drive = DRIVE_GetCurrentDrive();
600 return DRIVE_Chdir( drive, dirname );
601 }
602
603
604 static int INT21_FindFirst( CONTEXT86 *context )
605 {
606 char *p;
607 const char *path;
608 DOS_FULL_NAME full_name;
609 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
610
611 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
612 dta->unixPath = NULL;
613 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
614 {
615 AX_reg(context) = GetLastError();
616 SET_CFLAG(context);
617 return 0;
618 }
619 dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
620 p = strrchr( dta->unixPath, '/' );
621 *p = '\0';
622
623 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
624 * (doesn't matter as it is set below anyway)
625 */
626 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
627 {
628 HeapFree( GetProcessHeap(), 0, dta->unixPath );
629 dta->unixPath = NULL;
630 SetLastError( ERROR_FILE_NOT_FOUND );
631 AX_reg(context) = ERROR_FILE_NOT_FOUND;
632 SET_CFLAG(context);
633 return 0;
634 }
635 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
636 : DRIVE_GetCurrentDrive();
637 dta->count = 0;
638 dta->search_attr = CL_reg(context);
639 return 1;
640 }
641
642
643 static int INT21_FindNext( CONTEXT86 *context )
644 {
645 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
646 WIN32_FIND_DATAA entry;
647 int count;
648
649 if (!dta->unixPath) return 0;
650 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
651 dta->search_attr, dta->count, &entry )))
652 {
653 HeapFree( GetProcessHeap(), 0, dta->unixPath );
654 dta->unixPath = NULL;
655 return 0;
656 }
657 if ((int)dta->count + count > 0xffff)
658 {
659 WARN("Too many directory entries in %s\n", dta->unixPath );
660 HeapFree( GetProcessHeap(), 0, dta->unixPath );
661 dta->unixPath = NULL;
662 return 0;
663 }
664 dta->count += count;
665 dta->fileattr = entry.dwFileAttributes;
666 dta->filesize = entry.nFileSizeLow;
667 FileTimeToDosDateTime( &entry.ftLastWriteTime,
668 &dta->filedate, &dta->filetime );
669 strcpy( dta->filename, entry.cAlternateFileName );
670 if (!memchr(dta->mask,'?',11)) {
671 /* wildcardless search, release resources in case no findnext will
672 * be issued, and as a workaround in case file creation messes up
673 * findnext, as sometimes happens with pkunzip */
674 HeapFree( GetProcessHeap(), 0, dta->unixPath );
675 dta->unixPath = NULL;
676 }
677 return 1;
678 }
679
680
681 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
682 {
683 static int counter = 0;
684 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
685 char *p = name + strlen(name);
686
687 /* despite what Ralf Brown says, some programs seem to call without
688 * ending backslash (DOS accepts that, so we accept it too) */
689 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
690
691 for (;;)
692 {
693 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
694 counter = (counter + 1) % 1000;
695
696 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
697 {
698 TRACE("created %s\n", name );
699 return TRUE;
700 }
701 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
702 }
703 }
704
705
706 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
707 {
708 int drive = DOS_GET_DRIVE( DL_reg(context) );
709 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
710
711 if (!DRIVE_IsValid(drive))
712 {
713 SetLastError( ERROR_INVALID_DRIVE );
714 return FALSE;
715 }
716 lstrcpynA( ptr, DRIVE_GetDosCwd(drive), 64 );
717 AX_reg(context) = 0x0100; /* success return code */
718 return TRUE;
719 }
720
721
722 static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
723 {
724 if (heap || INT21_CreateHeap())
725 { /* return an empty table just as DOS 4.0+ does */
726 context->SegDs = DosHeapHandle;
727 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
728 }
729 else
730 {
731 AX_reg(context) = 0x1; /* error */
732 SET_CFLAG(context);
733 }
734 }
735
736
737 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
738 {
739 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
740 int drive = DOS_GET_DRIVE( BL_reg(context) );
741
742 if (!DRIVE_IsValid(drive))
743 {
744 SetLastError( ERROR_INVALID_DRIVE );
745 return 0;
746 }
747
748 *(WORD *)dataptr = 0;
749 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
750 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
751 strncpy(dataptr + 0x11, "FAT16 ", 8);
752 return 1;
753 }
754
755
756 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
757 {
758 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
759 int drive = DOS_GET_DRIVE( BL_reg(context) );
760
761 if (!DRIVE_IsValid(drive))
762 {
763 SetLastError( ERROR_INVALID_DRIVE );
764 return 0;
765 }
766
767 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
768 return 1;
769 }
770
771
772 /* microsoft's programmers should be shot for using CP/M style int21
773 calls in Windows for Workgroup's winfile.exe */
774
775 static int INT21_FindFirstFCB( CONTEXT86 *context )
776 {
777 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
778 FINDFILE_FCB *pFCB;
779 LPCSTR root, cwd;
780 int drive;
781
782 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
783 else pFCB = (FINDFILE_FCB *)fcb;
784 drive = DOS_GET_DRIVE( pFCB->drive );
785 if (!DRIVE_IsValid( drive )) return 0;
786 root = DRIVE_GetRoot( drive );
787 cwd = DRIVE_GetUnixCwd( drive );
788 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
789 strlen(root)+strlen(cwd)+2 );
790 if (!pFCB->unixPath) return 0;
791 strcpy( pFCB->unixPath, root );
792 strcat( pFCB->unixPath, "/" );
793 strcat( pFCB->unixPath, cwd );
794 pFCB->count = 0;
795 return 1;
796 }
797
798
799 static int INT21_FindNextFCB( CONTEXT86 *context )
800 {
801 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
802 FINDFILE_FCB *pFCB;
803 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
804 WIN32_FIND_DATAA entry;
805 BYTE attr;
806 int count;
807
808 if (*fcb == 0xff) /* extended FCB ? */
809 {
810 attr = fcb[6];
811 pFCB = (FINDFILE_FCB *)(fcb + 7);
812 }
813 else
814 {
815 attr = 0;
816 pFCB = (FINDFILE_FCB *)fcb;
817 }
818
819 if (!pFCB->unixPath) return 0;
820 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
821 DOS_GET_DRIVE( pFCB->drive ), attr,
822 pFCB->count, &entry )))
823 {
824 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
825 pFCB->unixPath = NULL;
826 return 0;
827 }
828 pFCB->count += count;
829
830 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
831 *(BYTE *)pResult = 0xff;
832 (BYTE *)pResult +=6; /* leave reserved field behind */
833 *(BYTE *)pResult = entry.dwFileAttributes;
834 ((BYTE *)pResult)++;
835 }
836 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
837 ((BYTE *)pResult)++;
838 pResult->fileattr = entry.dwFileAttributes;
839 pResult->cluster = 0; /* what else? */
840 pResult->filesize = entry.nFileSizeLow;
841 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
842 FileTimeToDosDateTime( &entry.ftLastWriteTime,
843 &pResult->filedate, &pResult->filetime );
844
845 /* Convert file name to FCB format */
846
847 memset( pResult->filename, ' ', sizeof(pResult->filename) );
848 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
849 else if (!strcmp( entry.cAlternateFileName, ".." ))
850 pResult->filename[0] = pResult->filename[1] = '.';
851 else
852 {
853 char *p = strrchr( entry.cAlternateFileName, '.' );
854 if (p && p[1] && (p != entry.cAlternateFileName))
855 {
856 memcpy( pResult->filename, entry.cAlternateFileName,
857 min( (p - entry.cAlternateFileName), 8 ) );
858 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
859 }
860 else
861 memcpy( pResult->filename, entry.cAlternateFileName,
862 min( strlen(entry.cAlternateFileName), 8 ) );
863 }
864 return 1;
865 }
866
867
868 static void DeleteFileFCB( CONTEXT86 *context )
869 {
870 FIXME("(%p): stub\n", context);
871 }
872
873 static void RenameFileFCB( CONTEXT86 *context )
874 {
875 FIXME("(%p): stub\n", context);
876 }
877
878
879
880 static void fLock( CONTEXT86 * context )
881 {
882
883 switch ( AX_reg(context) & 0xff )
884 {
885 case 0x00: /* LOCK */
886 TRACE("lock handle %d offset %ld length %ld\n",
887 BX_reg(context),
888 MAKELONG(DX_reg(context),CX_reg(context)),
889 MAKELONG(DI_reg(context),SI_reg(context))) ;
890 if (!LockFile(FILE_GetHandle(BX_reg(context)),
891 MAKELONG(DX_reg(context),CX_reg(context)), 0,
892 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
893 AX_reg(context) = GetLastError();
894 SET_CFLAG(context);
895 }
896 break;
897
898 case 0x01: /* UNLOCK */
899 TRACE("unlock handle %d offset %ld length %ld\n",
900 BX_reg(context),
901 MAKELONG(DX_reg(context),CX_reg(context)),
902 MAKELONG(DI_reg(context),SI_reg(context))) ;
903 if (!UnlockFile(FILE_GetHandle(BX_reg(context)),
904 MAKELONG(DX_reg(context),CX_reg(context)), 0,
905 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
906 AX_reg(context) = GetLastError();
907 SET_CFLAG(context);
908 }
909 return;
910 default:
911 AX_reg(context) = 0x0001;
912 SET_CFLAG(context);
913 return;
914 }
915 }
916
917 static BOOL
918 INT21_networkfunc (CONTEXT86 *context)
919 {
920 switch (AL_reg(context)) {
921 case 0x00: /* Get machine name. */
922 {
923 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
924 TRACE("getting machine name to %p\n", dst);
925 if (gethostname (dst, 15))
926 {
927 WARN("failed!\n");
928 SetLastError( ER_NoNetwork );
929 return TRUE;
930 } else {
931 int len = strlen (dst);
932 while (len < 15)
933 dst[len++] = ' ';
934 dst[15] = 0;
935 CH_reg(context) = 1; /* Valid */
936 CL_reg(context) = 1; /* NETbios number??? */
937 TRACE("returning %s\n", debugstr_an (dst, 16));
938 return FALSE;
939 }
940 }
941
942 default:
943 SetLastError( ER_NoNetwork );
944 return TRUE;
945 }
946 }
947
948 static void INT21_SetCurrentPSP(WORD psp)
949 {
950 LPDOSTASK lpDosTask = MZ_Current();
951 if (lpDosTask)
952 lpDosTask->psp_seg = psp;
953 else
954 ERR("Cannot change PSP for non-DOS task!\n");
955 }
956
957 static WORD INT21_GetCurrentPSP(void)
958 {
959 LPDOSTASK lpDosTask = MZ_Current();
960 if (lpDosTask)
961 return lpDosTask->psp_seg;
962 else
963 return GetCurrentPDB16();
964 }
965
966 static WORD INT21_GetReturnCode(void)
967 {
968 LPDOSTASK lpDosTask = MZ_Current();
969 if (lpDosTask) {
970 WORD ret = lpDosTask->retval;
971 lpDosTask->retval = 0;
972 return ret;
973 } else return 0;
974 }
975
976 /***********************************************************************
977 * INT21_GetExtendedError
978 */
979 static void INT21_GetExtendedError( CONTEXT86 *context )
980 {
981 BYTE class, action, locus;
982 WORD error = GetLastError();
983
984 switch(error)
985 {
986 case ERROR_SUCCESS:
987 class = action = locus = 0;
988 break;
989 case ERROR_DIR_NOT_EMPTY:
990 class = EC_Exists;
991 action = SA_Ignore;
992 locus = EL_Disk;
993 break;
994 case ERROR_ACCESS_DENIED:
995 class = EC_AccessDenied;
996 action = SA_Abort;
997 locus = EL_Disk;
998 break;
999 case ERROR_CANNOT_MAKE:
1000 class = EC_AccessDenied;
1001 action = SA_Abort;
1002 locus = EL_Unknown;
1003 break;
1004 case ERROR_DISK_FULL:
1005 case ERROR_HANDLE_DISK_FULL:
1006 class = EC_MediaError;
1007 action = SA_Abort;
1008 locus = EL_Disk;
1009 break;
1010 case ERROR_FILE_EXISTS:
1011 case ERROR_ALREADY_EXISTS:
1012 class = EC_Exists;
1013 action = SA_Abort;
1014 locus = EL_Disk;
1015 break;
1016 case ERROR_FILE_NOT_FOUND:
1017 class = EC_NotFound;
1018 action = SA_Abort;
1019 locus = EL_Disk;
1020 break;
1021 case ER_GeneralFailure:
1022 class = EC_SystemFailure;
1023 action = SA_Abort;
1024 locus = EL_Unknown;
1025 break;
1026 case ERROR_INVALID_DRIVE:
1027 class = EC_MediaError;
1028 action = SA_Abort;
1029 locus = EL_Disk;
1030 break;
1031 case ERROR_INVALID_HANDLE:
1032 class = EC_ProgramError;
1033 action = SA_Abort;
1034 locus = EL_Disk;
1035 break;
1036 case ERROR_LOCK_VIOLATION:
1037 class = EC_AccessDenied;
1038 action = SA_Abort;
1039 locus = EL_Disk;
1040 break;
1041 case ERROR_NO_MORE_FILES:
1042 class = EC_MediaError;
1043 action = SA_Abort;
1044 locus = EL_Disk;
1045 break;
1046 case ER_NoNetwork:
1047 class = EC_NotFound;
1048 action = SA_Abort;
1049 locus = EL_Network;
1050 break;
1051 case ERROR_NOT_ENOUGH_MEMORY:
1052 class = EC_OutOfResource;
1053 action = SA_Abort;
1054 locus = EL_Memory;
1055 break;
1056 case ERROR_PATH_NOT_FOUND:
1057 class = EC_NotFound;
1058 action = SA_Abort;
1059 locus = EL_Disk;
1060 break;
1061 case ERROR_SEEK:
1062 class = EC_NotFound;
1063 action = SA_Ignore;
1064 locus = EL_Disk;
1065 break;
1066 case ERROR_SHARING_VIOLATION:
1067 class = EC_Temporary;
1068 action = SA_Retry;
1069 locus = EL_Disk;
1070 break;
1071 case ERROR_TOO_MANY_OPEN_FILES:
1072 class = EC_ProgramError;
1073 action = SA_Abort;
1074 locus = EL_Disk;
1075 break;
1076 default:
1077 FIXME("Unknown error %d\n", error );
1078 class = EC_SystemFailure;
1079 action = SA_Abort;
1080 locus = EL_Unknown;
1081 break;
1082 }
1083 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1084 error, class, action, locus );
1085 AX_reg(context) = error;
1086 BH_reg(context) = class;
1087 BL_reg(context) = action;
1088 CH_reg(context) = locus;
1089 }
1090
1091 /***********************************************************************
1092 * DOS3Call (KERNEL.102)
1093 */
1094 void WINAPI DOS3Call( CONTEXT86 *context )
1095 {
1096 BOOL bSetDOSExtendedError = FALSE;
1097
1098
1099 TRACE("AX=%04x BX=%04x CX=%04x DX=%04x "
1100 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1101 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1102 SI_reg(context), DI_reg(context),
1103 (WORD)context->SegDs, (WORD)context->SegEs,
1104 context->EFlags );
1105
1106
1107 if (AH_reg(context) == 0x59) /* Get extended error info */
1108 {
1109 INT21_GetExtendedError( context );
1110 return;
1111 }
1112
1113 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1114 {
1115 TRACE("FLUSH BUFFER AND READ STANDARD INPUT\n");
1116 /* no flush here yet */
1117 AH_reg(context) = AL_reg(context);
1118 }
1119
1120 if (AH_reg(context)>=0x2f) {
1121 /* extended error is used by (at least) functions 0x2f to 0x62 */
1122 SetLastError(0);
1123 }
1124 RESET_CFLAG(context); /* Not sure if this is a good idea */
1125
1126 switch(AH_reg(context))
1127 {
1128 case 0x03: /* READ CHARACTER FROM STDAUX */
1129 case 0x04: /* WRITE CHARACTER TO STDAUX */
1130 case 0x05: /* WRITE CHARACTER TO PRINTER */
1131 case 0x0f: /* OPEN FILE USING FCB */
1132 case 0x10: /* CLOSE FILE USING FCB */
1133 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1134 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1135 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1136 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1137 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1138 case 0x23: /* GET FILE SIZE FOR FCB */
1139 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1140 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1141 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1142 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1143 INT_BARF( context, 0x21 );
1144 break;
1145
1146 case 0x00: /* TERMINATE PROGRAM */
1147 TRACE("TERMINATE PROGRAM\n");
1148 MZ_Exit( context, FALSE, 0 );
1149 break;
1150
1151 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1152 TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
1153 AL_reg(context) = CONSOLE_GetCharacter();
1154 /* FIXME: no echo */
1155 break;
1156
1157 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1158 TRACE("Write Character to Standard Output\n");
1159 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1160 break;
1161
1162 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1163 /* FIXME: Use DOSDEV_Peek/Read/Write(DOSDEV_Console(),...) !! */
1164 if (DL_reg(context) == 0xff) {
1165 static char scan = 0;
1166 TRACE("Direct Console Input\n");
1167 if (scan) {
1168 /* return pending scancode */
1169 AL_reg(context) = scan;
1170 RESET_ZFLAG(context);
1171 scan = 0;
1172 } else {
1173 char ascii;
1174 if (INT_Int16ReadChar(&ascii,&scan,TRUE)) {
1175 INT_Int16ReadChar(&ascii,&scan,FALSE);
1176 /* return ASCII code */
1177 AL_reg(context) = ascii;
1178 RESET_ZFLAG(context);
1179 /* return scan code on next call only if ascii==0 */
1180 if (ascii) scan = 0;
1181 } else {
1182 /* nothing pending, clear everything */
1183 AL_reg(context) = 0;
1184 SET_ZFLAG(context);
1185 scan = 0; /* just in case */
1186 }
1187 }
1188 } else {
1189 TRACE("Direct Console Output\n");
1190 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1191 }
1192 break;
1193
1194 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1195 /* FIXME: Use DOSDEV_Peek/Read(DOSDEV_Console(),...) !! */
1196 TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1197 INT_Int16ReadChar(&AL_reg(context), NULL, FALSE);
1198 break;
1199
1200 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1201 /* FIXME: Use DOSDEV_Peek/Read(DOSDEV_Console(),...) !! */
1202 TRACE("CHARACTER INPUT WITHOUT ECHO\n");
1203 INT_Int16ReadChar(&AL_reg(context), NULL, FALSE);
1204 break;
1205
1206 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1207 TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1208 context->SegDs,DX_reg(context) );
1209 {
1210 LPSTR data = CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
1211 LPSTR p = data;
1212 /* do NOT use strchr() to calculate the string length,
1213 as '\0' is valid string content, too !
1214 Maybe we should check for non-'$' strings, but DOS doesn't. */
1215 while (*p != '$') p++;
1216 _hwrite16( 1, data, (int)p - (int)data);
1217 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1218 }
1219 break;
1220
1221 case 0x0a: /* BUFFERED INPUT */
1222 {
1223 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1224 context->Edx ));
1225 int res;
1226
1227 TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
1228 if (buffer[1])
1229 TRACE("Handle old chars in buffer!\n");
1230 res=_lread16( 0, buffer+2,buffer[0]);
1231 buffer[1]=res;
1232 if(buffer[res+1] == '\n')
1233 buffer[res+1] = '\r';
1234 break;
1235 }
1236
1237 case 0x0b: {/* GET STDIN STATUS */
1238 char x1,x2;
1239
1240 if (CONSOLE_CheckForKeystroke(&x1,&x2))
1241 AL_reg(context) = 0xff;
1242 else
1243 AL_reg(context) = 0;
1244 break;
1245 }
1246 case 0x2e: /* SET VERIFY FLAG */
1247 TRACE("SET VERIFY FLAG ignored\n");
1248 /* we cannot change the behaviour anyway, so just ignore it */
1249 break;
1250
1251 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1252 case 0x1d:
1253 case 0x1e:
1254 case 0x20:
1255 case 0x6b: /* NULL FUNCTION */
1256 AL_reg(context) = 0;
1257 break;
1258
1259 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1260 fLock(context);
1261 break;
1262
1263 case 0x0d: /* DISK BUFFER FLUSH */
1264 TRACE("DISK BUFFER FLUSH ignored\n");
1265 RESET_CFLAG(context); /* dos 6+ only */
1266 break;
1267
1268 case 0x0e: /* SELECT DEFAULT DRIVE */
1269 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1270 DRIVE_SetCurrentDrive( DL_reg(context) );
1271 AL_reg(context) = MAX_DOS_DRIVES;
1272 break;
1273
1274 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1275 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
1276 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1277 if (!INT21_FindFirstFCB(context))
1278 {
1279 AL_reg(context) = 0xff;
1280 break;
1281 }
1282 /* else fall through */
1283
1284 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1285 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1286 break;
1287
1288 case 0x13: /* DELETE FILE USING FCB */
1289 DeleteFileFCB(context);
1290 break;
1291
1292 case 0x17: /* RENAME FILE USING FCB */
1293 RenameFileFCB(context);
1294 break;
1295
1296 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1297 AL_reg(context) = DRIVE_GetCurrentDrive();
1298 break;
1299
1300 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1301 {
1302 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1303 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(context->SegDs,DX_reg(context));
1304 TRACE("Set DTA: %08lx\n", pTask->dta);
1305 }
1306 break;
1307
1308 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1309 DL_reg(context) = 0;
1310 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1311 break;
1312
1313 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1314 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1315 break;
1316
1317 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1318 GetDrivePB(context, DRIVE_GetCurrentDrive());
1319 break;
1320
1321 case 0x25: /* SET INTERRUPT VECTOR */
1322 INT_CtxSetHandler( context, AL_reg(context),
1323 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( context->SegDs,
1324 DX_reg(context)));
1325 break;
1326
1327 case 0x29: /* PARSE FILENAME INTO FCB */
1328 INT21_ParseFileNameIntoFCB(context);
1329 break;
1330
1331 case 0x2a: /* GET SYSTEM DATE */
1332 INT21_GetSystemDate(context);
1333 break;
1334
1335 case 0x2b: /* SET SYSTEM DATE */
1336 FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
1337 DL_reg(context), DH_reg(context), CX_reg(context) );
1338 AL_reg(context) = 0; /* Let's pretend we succeeded */
1339 break;
1340
1341 case 0x2c: /* GET SYSTEM TIME */
1342 INT21_GetSystemTime(context);
1343 break;
1344
1345 case 0x2d: /* SET SYSTEM TIME */
1346 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1347 CH_reg(context), CL_reg(context),
1348 DH_reg(context), DL_reg(context) );
1349 AL_reg(context) = 0; /* Let's pretend we succeeded */
1350 break;
1351
1352 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1353 TRACE("GET DISK TRANSFER AREA ADDRESS\n");
1354 {
1355 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1356 context->SegEs = SELECTOROF( pTask->dta );
1357 BX_reg(context) = OFFSETOF( pTask->dta );
1358 }
1359 break;
1360
1361 case 0x30: /* GET DOS VERSION */
1362 TRACE("GET DOS VERSION %s requested\n",
1363 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1364 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1365 (HIWORD(GetVersion16()) << 8);
1366 #if 0
1367 AH_reg(context) = 0x7;
1368 AL_reg(context) = 0xA;
1369 #endif
1370
1371 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1372 CX_reg(context) = 0x0000;
1373 break;
1374
1375 case 0x31: /* TERMINATE AND STAY RESIDENT */
1376 FIXME("TERMINATE AND STAY RESIDENT stub\n");
1377 break;
1378
1379 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1380 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1381 INT21_DriveName( DL_reg(context)));
1382 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1383 break;
1384
1385 case 0x33: /* MULTIPLEXED */
1386 switch (AL_reg(context))
1387 {
1388 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1389 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
1390 DL_reg(context) = DOSCONF_config.brk_flag;
1391 break;
1392
1393 case 0x01: /* SET EXTENDED BREAK STATE */
1394 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
1395 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1396 break;
1397
1398 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1399 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1400 /* ugly coding in order to stay reentrant */
1401 if (DL_reg(context))
1402 {
1403 DL_reg(context) = DOSCONF_config.brk_flag;
1404 DOSCONF_config.brk_flag = 1;
1405 }
1406 else
1407 {
1408 DL_reg(context) = DOSCONF_config.brk_flag;
1409 DOSCONF_config.brk_flag = 0;
1410 }
1411 break;
1412
1413 case 0x05: /* GET BOOT DRIVE */
1414 TRACE("GET BOOT DRIVE\n");
1415 DL_reg(context) = 3;
1416 /* c: is Wine's bootdrive (a: is 1)*/
1417 break;
1418
1419 case 0x06: /* GET TRUE VERSION NUMBER */
1420 TRACE("GET TRUE VERSION NUMBER\n");
1421 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1422 (HIWORD(GetVersion16() << 8));
1423 DX_reg(context) = 0x00;
1424 break;
1425
1426 default:
1427 INT_BARF( context, 0x21 );
1428 break;
1429 }
1430 break;
1431
1432 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1433 TRACE("GET ADDRESS OF INDOS FLAG\n");
1434 if (!heap) INT21_CreateHeap();
1435 context->SegEs = DosHeapHandle;
1436 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1437 break;
1438
1439 case 0x35: /* GET INTERRUPT VECTOR */
1440 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1441 {
1442 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1443 context->SegEs = SELECTOROF(addr);
1444 BX_reg(context) = OFFSETOF(addr);
1445 }
1446 break;
1447
1448 case 0x36: /* GET FREE DISK SPACE */
1449 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1450 INT21_DriveName( DL_reg(context)));
1451 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1452 break;
1453
1454 case 0x37:
1455 {
1456 unsigned char switchchar='/';
1457 switch (AL_reg(context))
1458 {
1459 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1460 TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
1461 AL_reg(context) = 0x00; /* success*/
1462 DL_reg(context) = switchchar;
1463 break;
1464 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1465 TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
1466 switchchar = DL_reg(context);
1467 AL_reg(context) = 0x00; /* success*/
1468 break;
1469 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1470 INT_BARF( context, 0x21 );
1471 break;
1472 }
1473 break;
1474 }
1475
1476 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1477 TRACE("GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1478 AL_reg(context));
1479 AX_reg(context) = 0x02; /* no country support available */
1480 SET_CFLAG(context);
1481 break;
1482
1483 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1484 TRACE("MKDIR %s\n",
1485 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1486 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1487 context->Edx ), NULL));
1488 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1489 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1490 * denied), while CreateDirectory return several ones. remap some of
1491 * them. -Marcus
1492 */
1493 if (bSetDOSExtendedError) {
1494 switch (GetLastError()) {
1495 case ERROR_ALREADY_EXISTS:
1496 case ERROR_FILENAME_EXCED_RANGE:
1497 case ERROR_DISK_FULL:
1498 SetLastError(ERROR_ACCESS_DENIED);
1499 break;
1500 default: break;
1501 }
1502 }
1503 break;
1504
1505 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1506 TRACE("RMDIR %s\n",
1507 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1508 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1509 context->Edx )));
1510 break;
1511
1512 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1513 TRACE("CHDIR %s\n",
1514 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1515 bSetDOSExtendedError = !INT21_ChangeDir(context);
1516 break;
1517
1518 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1519 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1520 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1521 bSetDOSExtendedError = INT21_CreateFile( context );
1522 break;
1523
1524 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1525 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1526 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1527 OpenExistingFile(context);
1528 break;
1529
1530 case 0x3e: /* "CLOSE" - CLOSE FILE */
1531 TRACE("CLOSE handle %d\n",BX_reg(context));
1532 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1533 break;
1534
1535 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1536 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1537 context->SegDs,DX_reg(context),CX_reg(context) );
1538 {
1539 LONG result;
1540 if (ISV86(context))
1541 result = _hread16( BX_reg(context),
1542 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1543 context->Edx ),
1544 CX_reg(context) );
1545 else
1546 result = WIN16_hread( BX_reg(context),
1547 PTR_SEG_OFF_TO_SEGPTR( context->SegDs,
1548 context->Edx ),
1549 CX_reg(context) );
1550 if (result == -1) bSetDOSExtendedError = TRUE;
1551 else AX_reg(context) = (WORD)result;
1552 }
1553 break;
1554
1555 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1556 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1557 context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
1558 {
1559 LONG result = _hwrite16( BX_reg(context),
1560 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1561 context->Edx ),
1562 CX_reg(context) );
1563 if (result == -1) bSetDOSExtendedError = TRUE;
1564 else AX_reg(context) = (WORD)result;
1565 }
1566 break;
1567
1568 case 0x41: /* "UNLINK" - DELETE FILE */
1569 TRACE("UNLINK %s\n",
1570 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1571 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1572 context->Edx )));
1573 break;
1574
1575 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1576 TRACE("LSEEK handle %d offset %ld from %s\n",
1577 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1578 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1579 "current file position":"end of file");
1580 {
1581 LONG status = _llseek16( BX_reg(context),
1582 MAKELONG(DX_reg(context),CX_reg(context)),
1583 AL_reg(context) );
1584 if (status == -1) bSetDOSExtendedError = TRUE;
1585 else
1586 {
1587 AX_reg(context) = LOWORD(status);
1588 DX_reg(context) = HIWORD(status);
1589 }
1590 }
1591 break;
1592
1593 case 0x43: /* FILE ATTRIBUTES */
1594 switch (AL_reg(context))
1595 {
1596 case 0x00:
1597 TRACE("GET FILE ATTRIBUTES for %s\n",
1598 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1599 AX_reg(context) = (WORD)GetFileAttributesA(
1600 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1601 context->Edx));
1602 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1603 else CX_reg(context) = AX_reg(context);
1604 break;
1605
1606 case 0x01:
1607 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1608 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1609 bSetDOSExtendedError =
1610 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1611 context->Edx),
1612 CX_reg(context) ));
1613 break;
1614 case 0x02:
1615 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1616 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1617 }
1618 break;
1619
1620 case 0x44: /* IOCTL */
1621 switch (AL_reg(context))
1622 {
1623 case 0x00:
1624 ioctlGetDeviceInfo(context);
1625 break;
1626
1627 case 0x01:
1628 break;
1629 case 0x02:{
1630 const DOS_DEVICE *dev;
1631 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )) &&
1632 !strcasecmp( dev->name, "SCSIMGR$" ))
1633 {
1634 ASPI_DOS_HandleInt(context);
1635 }
1636 break;
1637 }
1638 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1639 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1640 int drive = DOS_GET_DRIVE(BL_reg(context));
1641
1642 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1643 /* for (i=0;i<CX_reg(context);i++)
1644 fprintf(stdnimp,"%02x ",dataptr[i]);
1645 fprintf(stdnimp,"\n");*/
1646 AX_reg(context)=CX_reg(context);
1647 break;
1648 }
1649 case 0x08: /* Check if drive is removable. */
1650 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1651 INT21_DriveName( BL_reg(context)));
1652 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1653 {
1654 case DRIVE_CANNOTDETERMINE:
1655 SetLastError( ERROR_INVALID_DRIVE );
1656 AX_reg(context) = ERROR_INVALID_DRIVE;
1657 SET_CFLAG(context);
1658 break;
1659 case DRIVE_REMOVABLE:
1660 AX_reg(context) = 0; /* removable */
1661 break;
1662 default:
1663 AX_reg(context) = 1; /* not removable */
1664 break;
1665 }
1666 break;
1667
1668 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1669 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1670 INT21_DriveName( BL_reg(context)));
1671 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1672 {
1673 case DRIVE_CANNOTDETERMINE:
1674 SetLastError( ERROR_INVALID_DRIVE );
1675 AX_reg(context) = ERROR_INVALID_DRIVE;
1676 SET_CFLAG(context);
1677 break;
1678 case DRIVE_REMOTE:
1679 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1680 break;
1681 default:
1682 DX_reg(context) = 0; /* FIXME: use driver attr here */
1683 break;
1684 }
1685 break;
1686
1687 case 0x0a: /* check if handle (BX) is remote */
1688 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1689 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1690 * not set on close
1691 */
1692 DX_reg(context) = 0;
1693 break;
1694
1695 case 0x0b: /* SET SHARING RETRY COUNT */
1696 TRACE("IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1697 CX_reg(context), DX_reg(context));
1698 if (!CX_reg(context))
1699 {
1700 AX_reg(context) = 1;
1701 SET_CFLAG(context);
1702 break;
1703 }
1704 DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
1705 if (!DX_reg(context))
1706 DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
1707 RESET_CFLAG(context);
1708 break;
1709
1710 case 0x0d:
1711 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1712 INT21_DriveName( BL_reg(context)));
1713 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1714 break;
1715
1716 case 0x0e: /* get logical drive mapping */
1717 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1718 INT21_DriveName( BL_reg(context)));
1719 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1720 break;
1721
1722 case 0x0F: /* Set logical drive mapping */
1723 {
1724 int drive;
1725 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1726 INT21_DriveName( BL_reg(context)));
1727 drive = DOS_GET_DRIVE ( BL_reg(context) );
1728 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1729 {
1730 SET_CFLAG(context);
1731 AX_reg(context) = 0x000F; /* invalid drive */
1732 }
1733 break;
1734 }
1735
1736 case 0xe0: /* Sun PC-NFS API */
1737 /* not installed */
1738 break;
1739
1740 case 0x52: /* DR-DOS version */
1741 /* This is not DR-DOS */
1742
1743 TRACE("GET DR-DOS VERSION requested");
1744
1745 AX_reg(context) = 0x0001; /* Invalid function */
1746 SET_CFLAG(context); /* Error */
1747 SetLastError( ERROR_INVALID_FUNCTION );
1748 break;
1749
1750 default:
1751 INT_BARF( context, 0x21 );
1752 break;
1753 }
1754 break;
1755
1756 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1757 {
1758 HANDLE handle;
1759 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1760 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1761 FILE_GetHandle(BX_reg(context)),
1762 GetCurrentProcess(), &handle,
1763 0, TRUE, DUPLICATE_SAME_ACCESS )))
1764 AX_reg(context) = HFILE_ERROR16;
1765 else
1766 AX_reg(context) = FILE_AllocDosHandle(handle);
1767 break;
1768 }
1769
1770 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1771 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1772 BX_reg(context),CX_reg(context));
1773 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1774 break;
1775
1776 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1777 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1778 INT21_DriveName( DL_reg(context)));
1779 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1780 break;
1781
1782 case 0x48: /* ALLOCATE MEMORY */
1783 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1784 {
1785 LPVOID *mem;
1786 if (ISV86(context))
1787 {
1788 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1789 if (mem)
1790 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1791 }
1792 else
1793 {
1794 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1795 if (mem)
1796 AX_reg(context) = (DWORD)mem&0xffff;
1797 }
1798 if (!mem)
1799 {
1800 SET_CFLAG(context);
1801 AX_reg(context) = 0x0008; /* insufficient memory */
1802 BX_reg(context) = DOSMEM_Available()>>4;
1803 }
1804 }
1805 break;
1806
1807 case 0x49: /* FREE MEMORY */
1808 TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
1809 {
1810 BOOL ret;
1811 if (ISV86(context))
1812 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
1813 else
1814 {
1815 ret = !GlobalDOSFree16(context->SegEs);
1816 /* If we don't reset ES_reg, we will fail in the relay code */
1817 context->SegEs=ret;
1818 }
1819 if (!ret)
1820 {
1821 TRACE("FREE MEMORY failed\n");
1822 SET_CFLAG(context);
1823 AX_reg(context) = 0x0009; /* memory block address invalid */
1824 }
1825 }
1826 break;
1827
1828 case 0x4a: /* RESIZE MEMORY BLOCK */
1829 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
1830 if (!ISV86(context))
1831 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1832 {
1833 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
1834 BX_reg(context)<<4,NULL);
1835 if (mem)
1836 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1837 else {
1838 SET_CFLAG(context);
1839 AX_reg(context) = 0x0008; /* insufficient memory */
1840 BX_reg(context) = DOSMEM_Available()>>4; /* not quite right */
1841 }
1842 }
1843 break;
1844
1845 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1846 TRACE("EXEC %s\n",
1847 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
1848 if (ISV86(context)) {
1849 if (!MZ_Exec( context, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx),
1850 AL_reg(context), CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx) ))
1851 bSetDOSExtendedError = TRUE;
1852 } else {
1853 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1854 context->Edx ),
1855 SW_NORMAL );
1856 if (AX_reg(context) < 32) SET_CFLAG(context);
1857 }
1858 break;
1859
1860 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1861 TRACE("EXIT with return code %d\n",AL_reg(context));
1862 MZ_Exit( context, FALSE, AL_reg(context) );
1863 break;
1864
1865 case 0x4d: /* GET RETURN CODE */
1866 TRACE("GET RETURN CODE (ERRORLEVEL)\n");
1867 AX_reg(context) = INT21_GetReturnCode();
1868 break;
1869
1870 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1871 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1872 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1873 if (!INT21_FindFirst(context)) break;
1874 /* fall through */
1875
1876 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1877 TRACE("FINDNEXT\n");
1878 if (!INT21_FindNext(context))
1879 {
1880 SetLastError( ERROR_NO_MORE_FILES );
1881 AX_reg(context) = ERROR_NO_MORE_FILES;
1882 SET_CFLAG(context);
1883 }
1884 else AX_reg(context) = 0; /* OK */
1885 break;
1886 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1887 TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1888 INT21_SetCurrentPSP(BX_reg(context));
1889 break;
1890 case 0x51: /* GET PSP ADDRESS */
1891 TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1892 /* FIXME: should we return the original DOS PSP upon */
1893 /* Windows startup ? */
1894 BX_reg(context) = INT21_GetCurrentPSP();
1895 break;
1896 case 0x62: /* GET PSP ADDRESS */
1897 TRACE("GET CURRENT PSP ADDRESS\n");
1898 /* FIXME: should we return the original DOS PSP upon */
1899 /* Windows startup ? */
1900 BX_reg(context) = INT21_GetCurrentPSP();
1901 break;
1902
1903 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1904 TRACE("SYSVARS - GET LIST OF LISTS\n");
1905 {
1906 context->SegEs = ISV86(context) ? HIWORD(DOS_LOLSeg) : LOWORD(DOS_LOLSeg);
1907 BX_reg(context) = FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB);
1908 }
1909 break;
1910
1911 case 0x54: /* Get Verify Flag */
1912 TRACE("Get Verify Flag - Not Supported\n");
1913 AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
1914 break;
1915
1916 case 0x56: /* "RENAME" - RENAME FILE */
1917 TRACE("RENAME %s to %s\n",
1918 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1919 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi));
1920 bSetDOSExtendedError =
1921 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1922 CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi)));
1923 break;
1924
1925 case 0x57: /* FILE DATE AND TIME */
1926 switch (AL_reg(context))
1927 {
1928 case 0x00: /* Get */
1929 {
1930 FILETIME filetime;
1931 TRACE("GET FILE DATE AND TIME for handle %d\n",
1932 BX_reg(context));
1933 if (!GetFileTime( FILE_GetHandle(BX_reg(context)), NULL, NULL, &filetime ))
1934 bSetDOSExtendedError = TRUE;
1935 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1936 &CX_reg(context) );
1937 }
1938 break;
1939
1940 case 0x01: /* Set */
1941 {
1942 FILETIME filetime;
1943 TRACE("SET FILE DATE AND TIME for handle %d\n",
1944 BX_reg(context));
1945 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1946 &filetime );
1947 bSetDOSExtendedError =
1948 (!SetFileTime( FILE_GetHandle(BX_reg(context)),
1949 NULL, NULL, &filetime ));
1950 }
1951 break;
1952 }
1953 break;
1954
1955 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1956 TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1957 AL_reg(context));
1958 switch (AL_reg(context))
1959 {
1960 case 0x00:
1961 AX_reg(context) = 1;
1962 break;
1963 case 0x02:
1964 AX_reg(context) = 0;
1965 break;
1966 case 0x01:
1967 case 0x03:
1968 break;
1969 }
1970 RESET_CFLAG(context);
1971 break;
1972
1973 case 0x5a: /* CREATE TEMPORARY FILE */
1974 TRACE("CREATE TEMPORARY FILE\n");
1975 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1976 break;
1977
1978 case 0x5b: /* CREATE NEW FILE */
1979 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1980 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1981 bSetDOSExtendedError = ((AX_reg(context) =
1982 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1983 CX_reg(context) )) == (WORD)HFILE_ERROR16);
1984 break;
1985
1986 case 0x5d: /* NETWORK */
1987 FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
1988 /* Fix the following while you're at it. */
1989 SetLastError( ER_NoNetwork );
1990 bSetDOSExtendedError = TRUE;
1991 break;
1992
1993 case 0x5e:
1994 bSetDOSExtendedError = INT21_networkfunc (context);
1995 break;
1996
1997 case 0x5f: /* NETWORK */
1998 switch (AL_reg(context))
1999 {
2000 case 0x07: /* ENABLE DRIVE */
2001 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2002 if (!DRIVE_Enable( DL_reg(context) ))
2003 {
2004 SetLastError( ERROR_INVALID_DRIVE );
2005 bSetDOSExtendedError = TRUE;
2006 }
2007 break;
2008
2009 case 0x08: /* DISABLE DRIVE */
2010 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2011 if (!DRIVE_Disable( DL_reg(context) ))
2012 {
2013 SetLastError( ERROR_INVALID_DRIVE );
2014 bSetDOSExtendedError = TRUE;
2015 }
2016 break;
2017
2018 default:
2019 /* network software not installed */
2020 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
2021 SetLastError( ER_NoNetwork );
2022 bSetDOSExtendedError = TRUE;
2023 break;
2024 }
2025 break;
2026
2027 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
2028 TRACE("TRUENAME %s\n",
2029 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
2030 {
2031 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2032 context->Esi), 128,
2033 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2034 context->Edi),NULL))
2035 bSetDOSExtendedError = TRUE;
2036 else AX_reg(context) = 0;
2037 }
2038 break;
2039
2040 case 0x61: /* UNUSED */
2041 case 0x63: /* misc. language support */
2042 switch (AL_reg(context)) {
2043 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
2044 INT21_GetDBCSLeadTable(context);
2045 break;
2046 }
2047 break;
2048 case 0x64: /* OS/2 DOS BOX */
2049 INT_BARF( context, 0x21 );
2050 SET_CFLAG(context);
2051 break;
2052
2053 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2054 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2055 TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2056 BX_reg(context), DX_reg(context));
2057 switch (AL_reg(context)) {
2058 case 0x01:
2059 TRACE("\tget general internationalization info\n");
2060 dataptr[0] = 0x1;
2061 *(WORD*)(dataptr+1) = 41;
2062 *(WORD*)(dataptr+3) = GetSystemDefaultLangID();
2063 *(WORD*)(dataptr+5) = CodePage;
2064 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2065 break;
2066 case 0x06:
2067 TRACE("\tget pointer to collating sequence table\n");
2068 dataptr[0] = 0x06;
2069 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2070 CX_reg(context) = 258;/*FIXME: size of table?*/
2071 break;
2072 case 0x20:
2073 TRACE("\tConvert char to uppercase\n");
2074 DL_reg(context) = toupper(DL_reg(context));
2075 break;
2076 case 0x21:
2077 TRACE("\tconvert string to uppercase with length\n");
2078 {
2079 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
2080 WORD len = CX_reg(context);
2081 while (len--) { *ptr = toupper(*ptr); ptr++; }
2082 }
2083 break;
2084 case 0x22:
2085 TRACE("\tConvert ASCIIZ string to uppercase\n");
2086 _strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx) );
2087 break;
2088 default:
2089 TRACE("\tunimplemented function %d\n",AL_reg(context));
2090 INT_BARF( context, 0x21 );
2091 SET_CFLAG(context);
2092 break;
2093 }
2094 break;
2095 }
2096 case 0x66: /* GLOBAL CODE PAGE TABLE */
2097 switch (AL_reg(context))
2098 {
2099 case 0x01:
2100 TRACE("GET GLOBAL CODE PAGE TABLE\n");
2101 DX_reg(context) = BX_reg(context) = CodePage;
2102 RESET_CFLAG(context);
2103 break;
2104 case 0x02:
2105 TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2106 BX_reg(context),DX_reg(context));
2107 CodePage = BX_reg(context);
2108 RESET_CFLAG(context);
2109 break;
2110 }
2111 break;
2112
2113 case 0x67: /* SET HANDLE COUNT */
2114 TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
2115 SetHandleCount16( BX_reg(context) );
2116 if (GetLastError()) bSetDOSExtendedError = TRUE;
2117 break;
2118
2119 case 0x68: /* "FFLUSH" - COMMIT FILE */
2120 case 0x6a: /* COMMIT FILE */
2121 TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
2122 bSetDOSExtendedError = (!FlushFileBuffers( FILE_GetHandle(BX_reg(context)) ));
2123 break;
2124
2125 case 0x69: /* DISK SERIAL NUMBER */
2126 switch (AL_reg(context))
2127 {
2128 case 0x00:
2129 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
2130 INT21_DriveName(BL_reg(context)));
2131 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2132 else AX_reg(context) = 0;
2133 break;
2134
2135 case 0x01:
2136 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
2137 INT21_DriveName(BL_reg(context)));
2138 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2139 else AX_reg(context) = 1;
2140 break;
2141 }
2142 break;
2143
2144 case 0x6C: /* Extended Open/Create*/
2145 TRACE("EXTENDED OPEN/CREATE %s\n",
2146 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
2147 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2148 break;
2149
2150 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2151 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2152 /* not supported on anything but Win95 */
2153 TRACE("LONG FILENAME functions supported only by win95\n");
2154 SET_CFLAG(context);
2155 AL_reg(context) = 0;
2156 } else
2157 switch(AL_reg(context))
2158 {
2159 case 0x39: /* Create directory */
2160 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
2161 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2162 bSetDOSExtendedError = (!CreateDirectoryA(
2163 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2164 context->Edx ), NULL));
2165 /* FIXME: CreateDirectory's LastErrors will clash with the ones
2166 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
2167 * denied), while CreateDirectory return several ones. remap some of
2168 * them. -Marcus
2169 */
2170 if (bSetDOSExtendedError) {
2171 switch (GetLastError()) {
2172 case ERROR_ALREADY_EXISTS:
2173 case ERROR_FILENAME_EXCED_RANGE:
2174 case ERROR_DISK_FULL:
2175 SetLastError(ERROR_ACCESS_DENIED);
2176 break;
2177 default: break;
2178 }
2179 }
2180 break;
2181 case 0x3a: /* Remove directory */
2182 TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
2183 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2184 bSetDOSExtendedError = (!RemoveDirectoryA(
2185 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2186 context->Edx )));
2187 break;
2188 case 0x43: /* Get/Set file attributes */
2189 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2190 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2191 switch (BL_reg(context))
2192 {
2193 case 0x00: /* Get file attributes */
2194 TRACE("\tretrieve attributes\n");
2195 CX_reg(context) = (WORD)GetFileAttributesA(
2196 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2197 context->Edx));
2198 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2199 break;
2200 case 0x01:
2201 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
2202 bSetDOSExtendedError = (!SetFileAttributesA(
2203 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2204 context->Edx),
2205 CX_reg(context) ) );
2206 break;
2207 default:
2208 FIXME("Unimplemented long file name function:\n");
2209 INT_BARF( context, 0x21 );
2210 SET_CFLAG(context);
2211 AL_reg(context) = 0;
2212 break;
2213 }
2214 break;
2215 case 0x47: /* Get current directory */
2216 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2217 INT21_DriveName(DL_reg(context)));
2218 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2219 break;
2220
2221 case 0x4e: /* Find first file */
2222 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2223 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2224 /* FIXME: use attributes in CX */
2225 if ((AX_reg(context) = FindFirstFile16(
2226 CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
2227 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2228 context->Edi)))
2229 == INVALID_HANDLE_VALUE16)
2230 bSetDOSExtendedError = TRUE;
2231 break;
2232 case 0x4f: /* Find next file */
2233 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2234 BX_reg(context));
2235 if (!FindNextFile16( BX_reg(context),
2236 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2237 context->Edi)))
2238 bSetDOSExtendedError = TRUE;
2239 break;
2240 case 0xa0:
2241 {
2242 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
2243 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2244 int drive;
2245 UINT flags;
2246
2247 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
2248 AX_reg(context) = 0;
2249 if (!driveroot)
2250 {
2251 INT_BARF( context, 0x21 );
2252 SET_CFLAG(context);
2253 break;
2254 }
2255 drive = toupper(driveroot[0]) - 'A';
2256 flags = DRIVE_GetFlags(toupper(driveroot[0]) - 'A');
2257 BX_reg(context) = 0x4000; /* support for LFN functions */
2258 if (flags & DRIVE_CASE_SENSITIVE)
2259 BX_reg(context) |= 1;
2260 if (flags & DRIVE_CASE_PRESERVING)
2261 BX_reg(context) |= 2;
2262 /***** FIXME: not supported yet (needed ?)
2263 if (flags & DRIVE_UNICODE)
2264 BX_reg(context) |= 4;
2265 if (flags & DRIVE_COMPRESSED)
2266 BX_reg(context) |= 0x8000;
2267 *****/
2268 CX_reg(context) = (flags & DRIVE_SHORT_NAMES) ? 11 : 255; /* FIXME: 12 ? */
2269 DX_reg(context) = MAX_PATH; /* FIXME: which len if DRIVE_SHORT_NAMES ? */
2270 if (DRIVE_GetType(drive) == TYPE_CDROM)
2271 /* valid for data _and_ audio */
2272 strcpy(buffer, "CDFS"); /* FIXME: fail if no CD in drive */
2273 else
2274 strcpy(buffer, "FAT");
2275 }
2276 break;
2277 case 0xa1: /* Find close */
2278 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
2279 BX_reg(context));
2280 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2281 break;
2282 case 0x60:
2283 switch(CL_reg(context))
2284 {
2285 case 0x01: /*Get short filename or path */
2286 if (!GetShortPathNameA
2287 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2288 context->Esi),
2289 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2290 context->Edi), 67))
2291 bSetDOSExtendedError = TRUE;
2292 else AX_reg(context) = 0;
2293 break;
2294 case 0x02: /*Get canonical long filename or path */
2295 if (!GetFullPathNameA
2296 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2297 context->Esi), 128,
2298 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2299 context->Edi),NULL))
2300 bSetDOSExtendedError = TRUE;
2301 else AX_reg(context) = 0;
2302 break;
2303 default:
2304 FIXME("Unimplemented long file name function:\n");
2305 INT_BARF( context, 0x21 );
2306 SET_CFLAG(context);
2307 AL_reg(context) = 0;
2308 break;
2309 }
2310 break;
2311 case 0x6c: /* Create or open file */
2312 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
2313 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
2314 /* translate Dos 7 action to Dos 6 action */
2315 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2316 break;
2317
2318 case 0x3b: /* Change directory */
2319 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2320 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2321 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2322 context->SegDs,
2323 context->Edx
2324 ))
2325 ) {
2326 SET_CFLAG(context);
2327 AL_reg(context) = GetLastError();
2328 }
2329 break;
2330 case 0x41: /* Delete file */
2331 TRACE("LONG FILENAME - DELETE FILE %s\n",
2332 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2333 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2334 context->SegDs,
2335 context->Edx)
2336 )) {
2337 SET_CFLAG(context);
2338 AL_reg(context) = GetLastError();
2339 }
2340 break;
2341 case 0x56: /* Move (rename) file */
2342 FIXME("LONG FILENAME - RENAME FILE %s to %s stub\n",
2343 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx),
2344 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi));
2345 default:
2346 FIXME("Unimplemented long file name function:\n");
2347 INT_BARF( context, 0x21 );
2348 SET_CFLAG(context);
2349 AL_reg(context) = 0;
2350 break;
2351 }
2352 break;
2353
2354 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2355 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2356 TRACE("windows95 function AX %04x\n",
2357 AX_reg(context));
2358 WARN(" returning unimplemented\n");
2359 SET_CFLAG(context);
2360 AL_reg(context) = 0;
2361 break;
2362
2363 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2364 TRACE("windows95 function AX %04x\n",
2365 AX_reg(context));
2366
2367 switch (AL_reg(context))
2368 {
2369 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2370 /* ES:DI points to word with length of data (should be 0x3d) */
2371 {
2372 WORD *buffer;
2373 struct EDPB *edpb;
2374 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2375 char root[] = "A:\\";
2376
2377 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2378
2379 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2380
2381 /* validate passed-in buffer lengths */
2382 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
2383 {
2384 WARN("Get Extended DPB: buffer lengths incorrect\n");
2385 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
2386 SET_CFLAG(context);
2387 AL_reg(context) = 0x18; /* bad buffer length */
2388 }
2389
2390 /* buffer checks out */
2391 buffer++; /* skip over length word now */
2392 if (FillInDrivePB( DX_reg(context) ) )
2393 {
2394 edpb = (struct EDPB *)buffer;
2395
2396 /* copy down the old-style DPB portion first */
2397 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2398
2399 /* now fill in the extended entries */
2400 edpb->edpb_flags = 0;
2401 edpb->next_edpb = 0;
2402 edpb->free_cluster = edpb->free_cluster2 = 0;
2403
2404 /* determine free disk space */
2405 *root += DOS_GET_DRIVE( DX_reg(context) );
2406 GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
2407 &free_clusters, &total_clusters );
2408
2409 edpb->clusters_free = (free_clusters&0xffff);
2410
2411 edpb->clusters_free_hi = free_clusters >> 16;
2412 edpb->mirroring_flags = 0;
2413 edpb->info_sector = 0xffff;
2414 edpb->spare_boot_sector = 0xffff;
2415 edpb->first_cluster = 0;
2416 edpb->max_cluster = total_clusters;
2417 edpb->fat_clusters = 32; /* made-up value */
2418 edpb->root_cluster = 0;
2419
2420 RESET_CFLAG(context); /* clear carry */
2421 AX_reg(context) = 0;
2422 }
2423 else
2424 {
2425 AX_reg(context) = 0x00ff;
2426 SET_CFLAG(context);
2427 }
2428 }
2429 break;
2430
2431 case 0x03: /* Get Extended free space on drive */
2432 case 0x04: /* Set DPB for formatting */
2433 case 0x05: /* extended absolute disk read/write */
2434 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2435 SET_CFLAG(context);
2436 AL_reg(context) = 0;
2437 break;
2438 }
2439
2440 break;
2441
2442
2443 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2444 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2445 break;
2446
2447 default:
2448 INT_BARF( context, 0x21 );
2449 break;
2450
2451 } /* END OF SWITCH */
2452
2453 if( bSetDOSExtendedError ) /* set general error condition */
2454 {
2455 AX_reg(context) = GetLastError();
2456 SET_CFLAG(context);
2457 }
2458
2459 if ((context->EFlags & 0x0001))
2460 TRACE("failed, error 0x%04lx\n", GetLastError() );
2461
2462 TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2463 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2464 AX_reg(context), BX_reg(context), CX_reg(context),
2465 DX_reg(context), SI_reg(context), DI_reg(context),
2466 (WORD)context->SegDs, (WORD)context->SegEs,
2467 context->EFlags);
2468 }
2469
2470 /***********************************************************************
2471 * GetSetKernelDOSProc
2472 */
2473 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2474 {
2475 FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);
2476 return NULL;
2477 }
2478
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