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GetMenuItemID: return -1 for invalid menu items, not zero.
[wine.git] / msdos / int21.c
blob236f66b6d30b633e0ac5d5e92feb6e850aa6cc6d
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/time.h>
16 #include <sys/types.h>
17 #include <unistd.h>
18 #include <utime.h>
19 #include <ctype.h>
20 #include "windef.h"
21 #include "winbase.h"
22 #include "ntddk.h"
23 #include "wingdi.h"
24 #include "winuser.h" /* SW_NORMAL */
25 #include "wine/winbase16.h"
26 #include "winerror.h"
27 #include "drive.h"
28 #include "file.h"
29 #include "heap.h"
30 #include "msdos.h"
31 #include "options.h"
32 #include "miscemu.h"
33 #include "task.h"
34 #include "dosexe.h"
35 #include "callback.h"
36 #include "debugtools.h"
37 #include "console.h"
38
39 DEFAULT_DEBUG_CHANNEL(int21);
40 #if defined(__svr4__) || defined(_SCO_DS)
41 /* SVR4 DOESNT do locking the same way must implement properly */
42 #define LOCK_EX 0
43 #define LOCK_SH 1
44 #define LOCK_NB 8
45 #endif
46
47
48 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
49
50 /* Define the drive parameter block, as used by int21/1F
51 * and int21/32. This table can be accessed through the
52 * global 'dpb' pointer, which points into the local dos
53 * heap.
54 */
55 struct DPB
56 {
57 BYTE drive_num; /* 0=A, etc. */
58 BYTE unit_num; /* Drive's unit number (?) */
59 WORD sector_size; /* Sector size in bytes */
60 BYTE high_sector; /* Highest sector in a cluster */
61 BYTE shift; /* Shift count (?) */
62 WORD reserved; /* Number of reserved sectors at start */
63 BYTE num_FAT; /* Number of FATs */
64 WORD dir_entries; /* Number of root dir entries */
65 WORD first_data; /* First data sector */
66 WORD high_cluster; /* Highest cluster number */
67 WORD sectors_in_FAT; /* Number of sectors per FAT */
68 WORD start_dir; /* Starting sector of first dir */
69 DWORD driver_head; /* Address of device driver header (?) */
70 BYTE media_ID; /* Media ID */
71 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
72 DWORD next; /* Pointer to next DPB in list */
73 WORD free_search; /* Free cluster search start */
74 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
75 };
76
77 struct EDPB /* FAT32 extended Drive Parameter Block */
78 { /* from Ralf Brown's Interrupt List */
79 struct DPB dpb; /* first 24 bytes = original DPB */
80
81 BYTE edpb_flags; /* undocumented/unknown flags */
82 DWORD next_edpb; /* pointer to next EDPB */
83 WORD free_cluster; /* cluster to start search for free space on write, typically
84 the last cluster allocated */
85 WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
86 WORD clusters_free_hi; /* hiword of clusters_free */
87 WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
88 /* bits 0-3 = 0-based number of the active FAT */
89 WORD info_sector; /* sector number of file system info sector, or FFFF for none */
90 WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
91 DWORD first_cluster; /* sector number of the first cluster */
92 DWORD max_cluster; /* sector number of the last cluster */
93 DWORD fat_clusters; /* number of clusters occupied by FAT */
94 DWORD root_cluster; /* cluster number of start of root directory */
95 DWORD free_cluster2; /* same as free_cluster: cluster at which to start
96 search for free space when writing */
97
98 };
99
100 WORD CodePage = 437;
101 DWORD dpbsegptr;
102
103 struct DosHeap {
104 BYTE InDosFlag;
105 BYTE mediaID;
106 BYTE biosdate[8];
107 struct DPB dpb;
108 BYTE DummyDBCSLeadTable[6];
109 };
110 static struct DosHeap *heap;
111 static WORD DosHeapHandle;
112
113 extern char TempDirectory[];
114
115 static BOOL INT21_CreateHeap(void)
116 {
117 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
118 {
119 WARN("Out of memory\n");
120 return FALSE;
121 }
122 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
123 dpbsegptr = MAKESEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
124 heap->InDosFlag = 0;
125 strcpy(heap->biosdate, "01/01/80");
126 memset(heap->DummyDBCSLeadTable, 0, 6);
127 return TRUE;
128 }
129
130 static BYTE *GetCurrentDTA( CONTEXT86 *context )
131 {
132 TDB *pTask = TASK_GetCurrent();
133
134 /* FIXME: This assumes DTA was set correctly! */
135 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
136 (DWORD)OFFSETOF(pTask->dta) );
137 }
138
139
140 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
141 /* limited == TRUE is used with INT 0x21/0x440d */
142 {
143 if (drive > 1) {
144 setword(data, 512);
145 data[2] = 2;
146 setword(&data[3], 0);
147 data[5] = 2;
148 setword(&data[6], 240);
149 setword(&data[8], 64000);
150 data[0x0a] = 0xf8;
151 setword(&data[0x0b], 40);
152 setword(&data[0x0d], 56);
153 setword(&data[0x0f], 2);
154 setword(&data[0x11], 0);
155 if (!limited) {
156 setword(&data[0x1f], 800);
157 data[0x21] = 5;
158 setword(&data[0x22], 1);
159 }
160 } else { /* 1.44mb */
161 setword(data, 512);
162 data[2] = 2;
163 setword(&data[3], 0);
164 data[5] = 2;
165 setword(&data[6], 240);
166 setword(&data[8], 2880);
167 data[0x0a] = 0xf8;
168 setword(&data[0x0b], 6);
169 setword(&data[0x0d], 18);
170 setword(&data[0x0f], 2);
171 setword(&data[0x11], 0);
172 if (!limited) {
173 setword(&data[0x1f], 80);
174 data[0x21] = 7;
175 setword(&data[0x22], 2);
176 }
177 }
178 }
179
180 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
181 {
182 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
183 char root[] = "A:\\";
184
185 *root += DOS_GET_DRIVE( DL_reg(context) );
186 if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
187 &free_clusters, &total_clusters )) return 0;
188 AX_reg(context) = cluster_sectors;
189 BX_reg(context) = free_clusters;
190 CX_reg(context) = sector_bytes;
191 DX_reg(context) = total_clusters;
192 return 1;
193 }
194
195 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
196 {
197 if (!INT21_GetFreeDiskSpace( context )) return 0;
198 if (!heap && !INT21_CreateHeap()) return 0;
199 heap->mediaID = 0xf0;
200 context->SegDs = DosHeapHandle;
201 BX_reg(context) = (int)&heap->mediaID - (int)heap;
202 return 1;
203 }
204
205 static int FillInDrivePB( int drive )
206 {
207 if(!DRIVE_IsValid(drive))
208 {
209 SetLastError( ERROR_INVALID_DRIVE );
210 return 0;
211 }
212 else if (heap || INT21_CreateHeap())
213 {
214 /* FIXME: I have no idea what a lot of this information should
215 * say or whether it even really matters since we're not allowing
216 * direct block access. However, some programs seem to depend on
217 * getting at least _something_ back from here. The 'next' pointer
218 * does worry me, though. Should we have a complete table of
219 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
220 */
221 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
222 heap->dpb.sector_size = 512;
223 heap->dpb.high_sector = 1;
224 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
225 heap->dpb.reserved = 0;
226 heap->dpb.num_FAT = 1;
227 heap->dpb.dir_entries = 2;
228 heap->dpb.first_data = 2;
229 heap->dpb.high_cluster = 64000;
230 heap->dpb.sectors_in_FAT = 1;
231 heap->dpb.start_dir = 1;
232 heap->dpb.driver_head = 0;
233 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
234 heap->dpb.access_flag = 0;
235 heap->dpb.next = 0;
236 heap->dpb.free_search = 0;
237 heap->dpb.free_clusters = 0xFFFF; /* unknown */
238 return 1;
239 }
240
241 return 0;
242 }
243
244 static void GetDrivePB( CONTEXT86 *context, int drive )
245 {
246 if (FillInDrivePB( drive ))
247 {
248 AL_reg(context) = 0x00;
249 context->SegDs = SELECTOROF(dpbsegptr);
250 BX_reg(context) = OFFSETOF(dpbsegptr);
251 }
252 else
253 {
254 AX_reg(context) = 0x00ff;
255 }
256 }
257
258
259 static void ioctlGetDeviceInfo( CONTEXT86 *context )
260 {
261 int curr_drive;
262 const DOS_DEVICE *dev;
263
264 TRACE("(%d)\n", BX_reg(context));
265
266 RESET_CFLAG(context);
267
268 /* DOS device ? */
269 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )))
270 {
271 DX_reg(context) = dev->flags;
272 return;
273 }
274
275 /* it seems to be a file */
276 curr_drive = DRIVE_GetCurrentDrive();
277 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
278 /* no floppy */
279 /* bits 0-5 are current drive
280 * bit 6 - file has NOT been written..FIXME: correct?
281 * bit 8 - generate int24 if no diskspace on write/ read past end of file
282 * bit 11 - media not removable
283 * bit 14 - don't set file date/time on closing
284 * bit 15 - file is remote
285 */
286 }
287
288 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
289 {
290 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
291 int drive = DOS_GET_DRIVE( BL_reg(context) );
292
293 if (!DRIVE_IsValid(drive))
294 {
295 SetLastError( ERROR_FILE_NOT_FOUND );
296 return TRUE;
297 }
298
299 if (CH_reg(context) != 0x08)
300 {
301 INT_BARF( context, 0x21 );
302 return FALSE;
303 }
304
305 switch (CL_reg(context))
306 {
307 case 0x4a: /* lock logical volume */
308 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
309 break;
310
311 case 0x60: /* get device parameters */
312 /* used by w4wgrp's winfile */
313 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
314 dataptr[0] = 0x04;
315 dataptr[6] = 0; /* media type */
316 if (drive > 1)
317 {
318 dataptr[1] = 0x05; /* fixed disk */
319 setword(&dataptr[2], 0x01); /* non removable */
320 setword(&dataptr[4], 0x300); /* # of cylinders */
321 }
322 else
323 {
324 dataptr[1] = 0x07; /* block dev, floppy */
325 setword(&dataptr[2], 0x02); /* removable */
326 setword(&dataptr[4], 80); /* # of cylinders */
327 }
328 CreateBPB(drive, &dataptr[7], TRUE);
329 RESET_CFLAG(context);
330 break;
331
332 case 0x41: /* write logical device track */
333 case 0x61: /* read logical device track */
334 {
335 BYTE drive = BL_reg(context) ?
336 BL_reg(context) : DRIVE_GetCurrentDrive();
337 WORD head = *(WORD *)dataptr+1;
338 WORD cyl = *(WORD *)dataptr+3;
339 WORD sect = *(WORD *)dataptr+5;
340 WORD nrsect = *(WORD *)dataptr+7;
341 BYTE *data = (BYTE *)dataptr+9;
342 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
343
344 raw_func = (CL_reg(context) == 0x41) ?
345 DRIVE_RawWrite : DRIVE_RawRead;
346
347 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
348 RESET_CFLAG(context);
349 else
350 {
351 AX_reg(context) = 0x1e; /* read fault */
352 SET_CFLAG(context);
353 }
354 }
355 break;
356 case 0x66:/* get disk serial number */
357 {
358 char label[12],fsname[9],path[4];
359 DWORD serial;
360
361 strcpy(path,"x:\\");path[0]=drive+'A';
362 GetVolumeInformationA(
363 path,label,12,&serial,NULL,NULL,fsname,9
364 );
365 *(WORD*)dataptr = 0;
366 memcpy(dataptr+2,&serial,4);
367 memcpy(dataptr+6,label ,11);
368 memcpy(dataptr+17,fsname,8);
369 }
370 break;
371
372 case 0x6a:
373 TRACE("logical volume %d unlocked.\n",drive);
374 break;
375
376 case 0x6f:
377 memset(dataptr+1, '\0', dataptr[0]-1);
378 dataptr[1] = dataptr[0];
379 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
380 dataptr[3] = 0xFF; /* no physical drive */
381 break;
382
383 case 0x72:
384 /* Trail on error implementation */
385 AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_UNKNOWN ? 0x0f : 0x01;
386 SET_CFLAG(context); /* Seems to be set all the time */
387 break;
388
389 default:
390 INT_BARF( context, 0x21 );
391 }
392 return FALSE;
393 }
394
395 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
396 {
397 char *filename =
398 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
399 char *fcb =
400 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
401 char *buffer, *s, *d;
402
403 AL_reg(context) = 0xff; /* failed */
404
405 TRACE("filename: '%s'\n", filename);
406
407 buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
408
409 s = filename;
410 d = buffer;
411 while (*s)
412 {
413 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
414 *d++ = *s++;
415 else
416 break;
417 }
418
419 *d = '\0';
420 DOSFS_ToDosFCBFormat(buffer, fcb + 1);
421 *fcb = 0;
422 TRACE("FCB: '%s'\n", ((CHAR *)fcb + 1));
423
424 HeapFree( GetProcessHeap(), 0, buffer);
425
426 AL_reg(context) =
427 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
428
429 /* point DS:SI to first unparsed character */
430 SI_reg(context) += (int)s - (int)filename;
431 }
432
433 static void INT21_GetSystemDate( CONTEXT86 *context )
434 {
435 SYSTEMTIME systime;
436 GetLocalTime( &systime );
437 CX_reg(context) = systime.wYear;
438 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
439 AX_reg(context) = systime.wDayOfWeek;
440 }
441
442 static void INT21_GetSystemTime( CONTEXT86 *context )
443 {
444 SYSTEMTIME systime;
445 GetLocalTime( &systime );
446 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
447 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
448 }
449
450 /* Many calls translate a drive argument like this:
451 drive number (00h = default, 01h = A:, etc)
452 */
453 static char drivestring[]="default";
454
455 char *INT21_DriveName(int drive)
456 {
457
458 if(drive >0)
459 {
460 drivestring[0]= (unsigned char)drive + '@';
461 drivestring[1]=':';
462 drivestring[2]=0;
463 }
464 return drivestring;
465 }
466 static BOOL INT21_CreateFile( CONTEXT86 *context )
467 {
468 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
469 context->Edx ), CX_reg(context) );
470 return (AX_reg(context) == (WORD)HFILE_ERROR16);
471 }
472
473 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
474 {
475 /* Mask off all flags not explicitly allowed by the doc */
476 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
477 return Win32HandleToDosFileHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
478 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
479 CREATE_NEW, attr, 0 ));
480 }
481
482 static void OpenExistingFile( CONTEXT86 *context )
483 {
484 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
485 AL_reg(context) );
486 if (AX_reg(context) == (WORD)HFILE_ERROR16)
487 {
488 AX_reg(context) = GetLastError();
489 SET_CFLAG(context);
490 }
491 }
492
493 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
494 {
495 BOOL bExtendedError = FALSE;
496 BYTE action = DL_reg(context);
497
498 /* Shuffle arguments to call OpenExistingFile */
499 AL_reg(context) = BL_reg(context);
500 DX_reg(context) = SI_reg(context);
501 /* BX,CX and DX should be preserved */
502 OpenExistingFile(context);
503
504 if ((context->EFlags & 0x0001) == 0) /* File exists */
505 {
506 UINT16 uReturnCX = 0;
507
508 /* Now decide what do do */
509
510 if ((action & 0x07) == 0)
511 {
512 _lclose16( AX_reg(context) );
513 AX_reg(context) = 0x0050; /*File exists*/
514 SET_CFLAG(context);
515 WARN("extended open/create: failed because file exists \n");
516 }
517 else if ((action & 0x07) == 2)
518 {
519 /* Truncate it, but first check if opened for write */
520 if ((BL_reg(context) & 0x0007)== 0)
521 {
522 _lclose16( AX_reg(context) );
523 WARN("extended open/create: failed, trunc on ro file\n");
524 AX_reg(context) = 0x000C; /*Access code invalid*/
525 SET_CFLAG(context);
526 }
527 else
528 {
529 TRACE("extended open/create: Closing before truncate\n");
530 if (_lclose16( AX_reg(context) ))
531 {
532 WARN("extended open/create: close before trunc failed\n");
533 AX_reg(context) = 0x0019; /*Seek Error*/
534 CX_reg(context) = 0;
535 SET_CFLAG(context);
536 }
537 /* Shuffle arguments to call CreateFile */
538
539 TRACE("extended open/create: Truncating\n");
540 AL_reg(context) = BL_reg(context);
541 /* CX is still the same */
542 DX_reg(context) = SI_reg(context);
543 bExtendedError = INT21_CreateFile(context);
544
545 if (context->EFlags & 0x0001) /*no file open, flags set */
546 {
547 WARN("extended open/create: trunc failed\n");
548 return bExtendedError;
549 }
550 uReturnCX = 0x3;
551 }
552 }
553 else uReturnCX = 0x1;
554
555 CX_reg(context) = uReturnCX;
556 }
557 else /* file does not exist */
558 {
559 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
560 if ((action & 0xF0)== 0)
561 {
562 CX_reg(context) = 0;
563 SET_CFLAG(context);
564 WARN("extended open/create: failed, file dosen't exist\n");
565 }
566 else
567 {
568 /* Shuffle arguments to call CreateFile */
569 TRACE("extended open/create: Creating\n");
570 AL_reg(context) = BL_reg(context);
571 /* CX should still be the same */
572 DX_reg(context) = SI_reg(context);
573 bExtendedError = INT21_CreateFile(context);
574 if (context->EFlags & 0x0001) /*no file open, flags set */
575 {
576 WARN("extended open/create: create failed\n");
577 return bExtendedError;
578 }
579 CX_reg(context) = 2;
580 }
581 }
582
583 return bExtendedError;
584 }
585
586
587 static BOOL INT21_ChangeDir( CONTEXT86 *context )
588 {
589 int drive;
590 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
591
592 TRACE("changedir %s\n", dirname);
593 if (dirname[0] && (dirname[1] == ':'))
594 {
595 drive = toupper(dirname[0]) - 'A';
596 dirname += 2;
597 }
598 else drive = DRIVE_GetCurrentDrive();
599 return DRIVE_Chdir( drive, dirname );
600 }
601
602
603 static int INT21_FindFirst( CONTEXT86 *context )
604 {
605 char *p;
606 const char *path;
607 DOS_FULL_NAME full_name;
608 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
609
610 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
611 dta->unixPath = NULL;
612 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
613 {
614 AX_reg(context) = GetLastError();
615 SET_CFLAG(context);
616 return 0;
617 }
618 dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
619 p = strrchr( dta->unixPath, '/' );
620 *p = '\0';
621
622 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
623 * (doesn't matter as it is set below anyway)
624 */
625 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
626 {
627 HeapFree( GetProcessHeap(), 0, dta->unixPath );
628 dta->unixPath = NULL;
629 SetLastError( ERROR_FILE_NOT_FOUND );
630 AX_reg(context) = ERROR_FILE_NOT_FOUND;
631 SET_CFLAG(context);
632 return 0;
633 }
634 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
635 : DRIVE_GetCurrentDrive();
636 dta->count = 0;
637 dta->search_attr = CL_reg(context);
638 return 1;
639 }
640
641
642 static int INT21_FindNext( CONTEXT86 *context )
643 {
644 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
645 WIN32_FIND_DATAA entry;
646 int count;
647
648 if (!dta->unixPath) return 0;
649 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
650 dta->search_attr, dta->count, &entry )))
651 {
652 HeapFree( GetProcessHeap(), 0, dta->unixPath );
653 dta->unixPath = NULL;
654 return 0;
655 }
656 if ((int)dta->count + count > 0xffff)
657 {
658 WARN("Too many directory entries in %s\n", dta->unixPath );
659 HeapFree( GetProcessHeap(), 0, dta->unixPath );
660 dta->unixPath = NULL;
661 return 0;
662 }
663 dta->count += count;
664 dta->fileattr = entry.dwFileAttributes;
665 dta->filesize = entry.nFileSizeLow;
666 FileTimeToDosDateTime( &entry.ftLastWriteTime,
667 &dta->filedate, &dta->filetime );
668 strcpy( dta->filename, entry.cAlternateFileName );
669 if (!memchr(dta->mask,'?',11)) {
670 /* wildcardless search, release resources in case no findnext will
671 * be issued, and as a workaround in case file creation messes up
672 * findnext, as sometimes happens with pkunzip */
673 HeapFree( GetProcessHeap(), 0, dta->unixPath );
674 dta->unixPath = NULL;
675 }
676 return 1;
677 }
678
679
680 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
681 {
682 static int counter = 0;
683 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
684 char *p = name + strlen(name);
685
686 /* despite what Ralf Brown says, some programs seem to call without
687 * ending backslash (DOS accepts that, so we accept it too) */
688 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
689
690 for (;;)
691 {
692 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
693 counter = (counter + 1) % 1000;
694
695 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
696 {
697 TRACE("created %s\n", name );
698 return TRUE;
699 }
700 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
701 }
702 }
703
704
705 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
706 {
707 int drive = DOS_GET_DRIVE( DL_reg(context) );
708 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
709
710 if (!DRIVE_IsValid(drive))
711 {
712 SetLastError( ERROR_INVALID_DRIVE );
713 return FALSE;
714 }
715 lstrcpynA( ptr, DRIVE_GetDosCwd(drive), 64 );
716 AX_reg(context) = 0x0100; /* success return code */
717 return TRUE;
718 }
719
720
721 static void INT21_GetDBCSLeadTable( CONTEXT86 *context )
722 {
723 if (heap || INT21_CreateHeap())
724 { /* return an empty table just as DOS 4.0+ does */
725 context->SegDs = DosHeapHandle;
726 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
727 }
728 else
729 {
730 AX_reg(context) = 0x1; /* error */
731 SET_CFLAG(context);
732 }
733 }
734
735
736 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
737 {
738 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
739 int drive = DOS_GET_DRIVE( BL_reg(context) );
740
741 if (!DRIVE_IsValid(drive))
742 {
743 SetLastError( ERROR_INVALID_DRIVE );
744 return 0;
745 }
746
747 *(WORD *)dataptr = 0;
748 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
749 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
750 strncpy(dataptr + 0x11, "FAT16 ", 8);
751 return 1;
752 }
753
754
755 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
756 {
757 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
758 int drive = DOS_GET_DRIVE( BL_reg(context) );
759
760 if (!DRIVE_IsValid(drive))
761 {
762 SetLastError( ERROR_INVALID_DRIVE );
763 return 0;
764 }
765
766 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
767 return 1;
768 }
769
770
771 /* microsoft's programmers should be shot for using CP/M style int21
772 calls in Windows for Workgroup's winfile.exe */
773
774 static int INT21_FindFirstFCB( CONTEXT86 *context )
775 {
776 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
777 FINDFILE_FCB *pFCB;
778 LPCSTR root, cwd;
779 int drive;
780
781 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
782 else pFCB = (FINDFILE_FCB *)fcb;
783 drive = DOS_GET_DRIVE( pFCB->drive );
784 if (!DRIVE_IsValid( drive )) return 0;
785 root = DRIVE_GetRoot( drive );
786 cwd = DRIVE_GetUnixCwd( drive );
787 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
788 strlen(root)+strlen(cwd)+2 );
789 if (!pFCB->unixPath) return 0;
790 strcpy( pFCB->unixPath, root );
791 strcat( pFCB->unixPath, "/" );
792 strcat( pFCB->unixPath, cwd );
793 pFCB->count = 0;
794 return 1;
795 }
796
797
798 static int INT21_FindNextFCB( CONTEXT86 *context )
799 {
800 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
801 FINDFILE_FCB *pFCB;
802 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
803 WIN32_FIND_DATAA entry;
804 BYTE attr;
805 int count;
806
807 if (*fcb == 0xff) /* extended FCB ? */
808 {
809 attr = fcb[6];
810 pFCB = (FINDFILE_FCB *)(fcb + 7);
811 }
812 else
813 {
814 attr = 0;
815 pFCB = (FINDFILE_FCB *)fcb;
816 }
817
818 if (!pFCB->unixPath) return 0;
819 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
820 DOS_GET_DRIVE( pFCB->drive ), attr,
821 pFCB->count, &entry )))
822 {
823 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
824 pFCB->unixPath = NULL;
825 return 0;
826 }
827 pFCB->count += count;
828
829 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
830 *(BYTE *)pResult = 0xff;
831 (BYTE *)pResult +=6; /* leave reserved field behind */
832 *(BYTE *)pResult = entry.dwFileAttributes;
833 ((BYTE *)pResult)++;
834 }
835 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
836 ((BYTE *)pResult)++;
837 pResult->fileattr = entry.dwFileAttributes;
838 pResult->cluster = 0; /* what else? */
839 pResult->filesize = entry.nFileSizeLow;
840 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
841 FileTimeToDosDateTime( &entry.ftLastWriteTime,
842 &pResult->filedate, &pResult->filetime );
843
844 /* Convert file name to FCB format */
845
846 memset( pResult->filename, ' ', sizeof(pResult->filename) );
847 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
848 else if (!strcmp( entry.cAlternateFileName, ".." ))
849 pResult->filename[0] = pResult->filename[1] = '.';
850 else
851 {
852 char *p = strrchr( entry.cAlternateFileName, '.' );
853 if (p && p[1] && (p != entry.cAlternateFileName))
854 {
855 memcpy( pResult->filename, entry.cAlternateFileName,
856 min( (p - entry.cAlternateFileName), 8 ) );
857 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
858 }
859 else
860 memcpy( pResult->filename, entry.cAlternateFileName,
861 min( strlen(entry.cAlternateFileName), 8 ) );
862 }
863 return 1;
864 }
865
866
867 static void DeleteFileFCB( CONTEXT86 *context )
868 {
869 FIXME("(%p): stub\n", context);
870 }
871
872 static void RenameFileFCB( CONTEXT86 *context )
873 {
874 FIXME("(%p): stub\n", context);
875 }
876
877
878
879 static void fLock( CONTEXT86 * context )
880 {
881
882 switch ( AX_reg(context) & 0xff )
883 {
884 case 0x00: /* LOCK */
885 TRACE("lock handle %d offset %ld length %ld\n",
886 BX_reg(context),
887 MAKELONG(DX_reg(context),CX_reg(context)),
888 MAKELONG(DI_reg(context),SI_reg(context))) ;
889 if (!LockFile(DosFileHandleToWin32Handle(BX_reg(context)),
890 MAKELONG(DX_reg(context),CX_reg(context)), 0,
891 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
892 AX_reg(context) = GetLastError();
893 SET_CFLAG(context);
894 }
895 break;
896
897 case 0x01: /* UNLOCK */
898 TRACE("unlock handle %d offset %ld length %ld\n",
899 BX_reg(context),
900 MAKELONG(DX_reg(context),CX_reg(context)),
901 MAKELONG(DI_reg(context),SI_reg(context))) ;
902 if (!UnlockFile(DosFileHandleToWin32Handle(BX_reg(context)),
903 MAKELONG(DX_reg(context),CX_reg(context)), 0,
904 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
905 AX_reg(context) = GetLastError();
906 SET_CFLAG(context);
907 }
908 return;
909 default:
910 AX_reg(context) = 0x0001;
911 SET_CFLAG(context);
912 return;
913 }
914 }
915
916 static BOOL
917 INT21_networkfunc (CONTEXT86 *context)
918 {
919 switch (AL_reg(context)) {
920 case 0x00: /* Get machine name. */
921 {
922 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
923 TRACE("getting machine name to %p\n", dst);
924 if (gethostname (dst, 15))
925 {
926 WARN("failed!\n");
927 SetLastError( ER_NoNetwork );
928 return TRUE;
929 } else {
930 int len = strlen (dst);
931 while (len < 15)
932 dst[len++] = ' ';
933 dst[15] = 0;
934 CH_reg(context) = 1; /* Valid */
935 CL_reg(context) = 1; /* NETbios number??? */
936 TRACE("returning %s\n", debugstr_an (dst, 16));
937 return FALSE;
938 }
939 }
940
941 default:
942 SetLastError( ER_NoNetwork );
943 return TRUE;
944 }
945 }
946
947 static void INT21_SetCurrentPSP(WORD psp)
948 {
949 LPDOSTASK lpDosTask = Dosvm.Current();
950 if (lpDosTask)
951 lpDosTask->psp_seg = psp;
952 else
953 ERR("Cannot change PSP for non-DOS task!\n");
954 }
955
956 static WORD INT21_GetCurrentPSP(void)
957 {
958 LPDOSTASK lpDosTask = Dosvm.Current();
959 if (lpDosTask)
960 return lpDosTask->psp_seg;
961 else
962 return GetCurrentPDB16();
963 }
964
965 static WORD INT21_GetReturnCode(void)
966 {
967 LPDOSTASK lpDosTask = Dosvm.Current();
968 if (lpDosTask) {
969 WORD ret = lpDosTask->retval;
970 lpDosTask->retval = 0;
971 return ret;
972 } else return 0;
973 }
974
975 /***********************************************************************
976 * INT21_GetExtendedError
977 */
978 static void INT21_GetExtendedError( CONTEXT86 *context )
979 {
980 BYTE class, action, locus;
981 WORD error = GetLastError();
982
983 switch(error)
984 {
985 case ERROR_SUCCESS:
986 class = action = locus = 0;
987 break;
988 case ERROR_DIR_NOT_EMPTY:
989 class = EC_Exists;
990 action = SA_Ignore;
991 locus = EL_Disk;
992 break;
993 case ERROR_ACCESS_DENIED:
994 class = EC_AccessDenied;
995 action = SA_Abort;
996 locus = EL_Disk;
997 break;
998 case ERROR_CANNOT_MAKE:
999 class = EC_AccessDenied;
1000 action = SA_Abort;
1001 locus = EL_Unknown;
1002 break;
1003 case ERROR_DISK_FULL:
1004 case ERROR_HANDLE_DISK_FULL:
1005 class = EC_MediaError;
1006 action = SA_Abort;
1007 locus = EL_Disk;
1008 break;
1009 case ERROR_FILE_EXISTS:
1010 case ERROR_ALREADY_EXISTS:
1011 class = EC_Exists;
1012 action = SA_Abort;
1013 locus = EL_Disk;
1014 break;
1015 case ERROR_FILE_NOT_FOUND:
1016 class = EC_NotFound;
1017 action = SA_Abort;
1018 locus = EL_Disk;
1019 break;
1020 case ER_GeneralFailure:
1021 class = EC_SystemFailure;
1022 action = SA_Abort;
1023 locus = EL_Unknown;
1024 break;
1025 case ERROR_INVALID_DRIVE:
1026 class = EC_MediaError;
1027 action = SA_Abort;
1028 locus = EL_Disk;
1029 break;
1030 case ERROR_INVALID_HANDLE:
1031 class = EC_ProgramError;
1032 action = SA_Abort;
1033 locus = EL_Disk;
1034 break;
1035 case ERROR_LOCK_VIOLATION:
1036 class = EC_AccessDenied;
1037 action = SA_Abort;
1038 locus = EL_Disk;
1039 break;
1040 case ERROR_NO_MORE_FILES:
1041 class = EC_MediaError;
1042 action = SA_Abort;
1043 locus = EL_Disk;
1044 break;
1045 case ER_NoNetwork:
1046 class = EC_NotFound;
1047 action = SA_Abort;
1048 locus = EL_Network;
1049 break;
1050 case ERROR_NOT_ENOUGH_MEMORY:
1051 class = EC_OutOfResource;
1052 action = SA_Abort;
1053 locus = EL_Memory;
1054 break;
1055 case ERROR_PATH_NOT_FOUND:
1056 class = EC_NotFound;
1057 action = SA_Abort;
1058 locus = EL_Disk;
1059 break;
1060 case ERROR_SEEK:
1061 class = EC_NotFound;
1062 action = SA_Ignore;
1063 locus = EL_Disk;
1064 break;
1065 case ERROR_SHARING_VIOLATION:
1066 class = EC_Temporary;
1067 action = SA_Retry;
1068 locus = EL_Disk;
1069 break;
1070 case ERROR_TOO_MANY_OPEN_FILES:
1071 class = EC_ProgramError;
1072 action = SA_Abort;
1073 locus = EL_Disk;
1074 break;
1075 default:
1076 FIXME("Unknown error %d\n", error );
1077 class = EC_SystemFailure;
1078 action = SA_Abort;
1079 locus = EL_Unknown;
1080 break;
1081 }
1082 TRACE("GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1083 error, class, action, locus );
1084 AX_reg(context) = error;
1085 BH_reg(context) = class;
1086 BL_reg(context) = action;
1087 CH_reg(context) = locus;
1088 }
1089
1090 /***********************************************************************
1091 * DOS3Call (KERNEL.102)
1092 */
1093 void WINAPI DOS3Call( CONTEXT86 *context )
1094 {
1095 BOOL bSetDOSExtendedError = FALSE;
1096
1097
1098 TRACE("AX=%04x BX=%04x CX=%04x DX=%04x "
1099 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1100 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1101 SI_reg(context), DI_reg(context),
1102 (WORD)context->SegDs, (WORD)context->SegEs,
1103 context->EFlags );
1104
1105
1106 if (AH_reg(context) == 0x59) /* Get extended error info */
1107 {
1108 INT21_GetExtendedError( context );
1109 return;
1110 }
1111
1112 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1113 {
1114 TRACE("FLUSH BUFFER AND READ STANDARD INPUT\n");
1115 /* no flush here yet */
1116 AH_reg(context) = AL_reg(context);
1117 }
1118
1119 if (AH_reg(context)>=0x2f) {
1120 /* extended error is used by (at least) functions 0x2f to 0x62 */
1121 SetLastError(0);
1122 }
1123 RESET_CFLAG(context); /* Not sure if this is a good idea */
1124
1125 switch(AH_reg(context))
1126 {
1127 case 0x03: /* READ CHARACTER FROM STDAUX */
1128 case 0x04: /* WRITE CHARACTER TO STDAUX */
1129 case 0x05: /* WRITE CHARACTER TO PRINTER */
1130 case 0x0f: /* OPEN FILE USING FCB */
1131 case 0x10: /* CLOSE FILE USING FCB */
1132 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1133 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1134 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1135 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1136 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1137 case 0x23: /* GET FILE SIZE FOR FCB */
1138 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1139 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1140 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1141 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1142 INT_BARF( context, 0x21 );
1143 break;
1144
1145 case 0x00: /* TERMINATE PROGRAM */
1146 TRACE("TERMINATE PROGRAM\n");
1147 if (Dosvm.Exit) Dosvm.Exit( context, FALSE, 0 );
1148 else ExitThread( 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 = TASK_GetCurrent();
1303 pTask->dta = MAKESEGPTR(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)MAKESEGPTR( context->SegDs, DX_reg(context)));
1324 break;
1325
1326 case 0x29: /* PARSE FILENAME INTO FCB */
1327 INT21_ParseFileNameIntoFCB(context);
1328 break;
1329
1330 case 0x2a: /* GET SYSTEM DATE */
1331 INT21_GetSystemDate(context);
1332 break;
1333
1334 case 0x2b: /* SET SYSTEM DATE */
1335 FIXME("SetSystemDate(%02d/%02d/%04d): not allowed\n",
1336 DL_reg(context), DH_reg(context), CX_reg(context) );
1337 AL_reg(context) = 0; /* Let's pretend we succeeded */
1338 break;
1339
1340 case 0x2c: /* GET SYSTEM TIME */
1341 INT21_GetSystemTime(context);
1342 break;
1343
1344 case 0x2d: /* SET SYSTEM TIME */
1345 FIXME("SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1346 CH_reg(context), CL_reg(context),
1347 DH_reg(context), DL_reg(context) );
1348 AL_reg(context) = 0; /* Let's pretend we succeeded */
1349 break;
1350
1351 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1352 TRACE("GET DISK TRANSFER AREA ADDRESS\n");
1353 {
1354 TDB *pTask = TASK_GetCurrent();
1355 context->SegEs = SELECTOROF( pTask->dta );
1356 BX_reg(context) = OFFSETOF( pTask->dta );
1357 }
1358 break;
1359
1360 case 0x30: /* GET DOS VERSION */
1361 TRACE("GET DOS VERSION %s requested\n",
1362 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1363 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1364 (HIWORD(GetVersion16()) << 8);
1365 #if 0
1366 AH_reg(context) = 0x7;
1367 AL_reg(context) = 0xA;
1368 #endif
1369
1370 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1371 CX_reg(context) = 0x0000;
1372 break;
1373
1374 case 0x31: /* TERMINATE AND STAY RESIDENT */
1375 FIXME("TERMINATE AND STAY RESIDENT stub\n");
1376 break;
1377
1378 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1379 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1380 INT21_DriveName( DL_reg(context)));
1381 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1382 break;
1383
1384 case 0x33: /* MULTIPLEXED */
1385 switch (AL_reg(context))
1386 {
1387 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1388 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
1389 DL_reg(context) = DOSCONF_config.brk_flag;
1390 break;
1391
1392 case 0x01: /* SET EXTENDED BREAK STATE */
1393 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
1394 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1395 break;
1396
1397 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1398 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1399 /* ugly coding in order to stay reentrant */
1400 if (DL_reg(context))
1401 {
1402 DL_reg(context) = DOSCONF_config.brk_flag;
1403 DOSCONF_config.brk_flag = 1;
1404 }
1405 else
1406 {
1407 DL_reg(context) = DOSCONF_config.brk_flag;
1408 DOSCONF_config.brk_flag = 0;
1409 }
1410 break;
1411
1412 case 0x05: /* GET BOOT DRIVE */
1413 TRACE("GET BOOT DRIVE\n");
1414 DL_reg(context) = 3;
1415 /* c: is Wine's bootdrive (a: is 1)*/
1416 break;
1417
1418 case 0x06: /* GET TRUE VERSION NUMBER */
1419 TRACE("GET TRUE VERSION NUMBER\n");
1420 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1421 (HIWORD(GetVersion16() << 8));
1422 DX_reg(context) = 0x00;
1423 break;
1424
1425 default:
1426 INT_BARF( context, 0x21 );
1427 break;
1428 }
1429 break;
1430
1431 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1432 TRACE("GET ADDRESS OF INDOS FLAG\n");
1433 if (!heap) INT21_CreateHeap();
1434 context->SegEs = DosHeapHandle;
1435 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1436 break;
1437
1438 case 0x35: /* GET INTERRUPT VECTOR */
1439 TRACE("GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1440 {
1441 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1442 context->SegEs = SELECTOROF(addr);
1443 BX_reg(context) = OFFSETOF(addr);
1444 }
1445 break;
1446
1447 case 0x36: /* GET FREE DISK SPACE */
1448 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1449 INT21_DriveName( DL_reg(context)));
1450 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1451 break;
1452
1453 case 0x37:
1454 {
1455 unsigned char switchchar='/';
1456 switch (AL_reg(context))
1457 {
1458 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1459 TRACE("SWITCHAR - GET SWITCH CHARACTER\n");
1460 AL_reg(context) = 0x00; /* success*/
1461 DL_reg(context) = switchchar;
1462 break;
1463 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1464 TRACE("SWITCHAR - SET SWITCH CHARACTER\n");
1465 switchchar = DL_reg(context);
1466 AL_reg(context) = 0x00; /* success*/
1467 break;
1468 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1469 INT_BARF( context, 0x21 );
1470 break;
1471 }
1472 break;
1473 }
1474
1475 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1476 TRACE("GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1477 AL_reg(context));
1478 AX_reg(context) = 0x02; /* no country support available */
1479 SET_CFLAG(context);
1480 break;
1481
1482 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1483 TRACE("MKDIR %s\n",
1484 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1485 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1486 context->Edx ), NULL));
1487 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1488 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1489 * denied), while CreateDirectory return several ones. remap some of
1490 * them. -Marcus
1491 */
1492 if (bSetDOSExtendedError) {
1493 switch (GetLastError()) {
1494 case ERROR_ALREADY_EXISTS:
1495 case ERROR_FILENAME_EXCED_RANGE:
1496 case ERROR_DISK_FULL:
1497 SetLastError(ERROR_ACCESS_DENIED);
1498 break;
1499 default: break;
1500 }
1501 }
1502 break;
1503
1504 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1505 TRACE("RMDIR %s\n",
1506 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1507 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1508 context->Edx )));
1509 break;
1510
1511 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1512 TRACE("CHDIR %s\n",
1513 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1514 bSetDOSExtendedError = !INT21_ChangeDir(context);
1515 break;
1516
1517 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1518 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1519 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1520 bSetDOSExtendedError = INT21_CreateFile( context );
1521 break;
1522
1523 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1524 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1525 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1526 OpenExistingFile(context);
1527 break;
1528
1529 case 0x3e: /* "CLOSE" - CLOSE FILE */
1530 TRACE("CLOSE handle %d\n",BX_reg(context));
1531 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1532 break;
1533
1534 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1535 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1536 context->SegDs,DX_reg(context),CX_reg(context) );
1537 {
1538 LONG result;
1539 if (ISV86(context))
1540 result = _hread16( BX_reg(context),
1541 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1542 context->Edx ),
1543 CX_reg(context) );
1544 else
1545 result = WIN16_hread( BX_reg(context),
1546 MAKESEGPTR( context->SegDs, context->Edx ),
1547 CX_reg(context) );
1548 if (result == -1) bSetDOSExtendedError = TRUE;
1549 else AX_reg(context) = (WORD)result;
1550 }
1551 break;
1552
1553 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1554 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1555 context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
1556 {
1557 LONG result = _hwrite16( BX_reg(context),
1558 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1559 context->Edx ),
1560 CX_reg(context) );
1561 if (result == -1) bSetDOSExtendedError = TRUE;
1562 else AX_reg(context) = (WORD)result;
1563 }
1564 break;
1565
1566 case 0x41: /* "UNLINK" - DELETE FILE */
1567 TRACE("UNLINK %s\n",
1568 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1569 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1570 context->Edx )));
1571 break;
1572
1573 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1574 TRACE("LSEEK handle %d offset %ld from %s\n",
1575 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1576 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1577 "current file position":"end of file");
1578 {
1579 LONG status = _llseek16( BX_reg(context),
1580 MAKELONG(DX_reg(context),CX_reg(context)),
1581 AL_reg(context) );
1582 if (status == -1) bSetDOSExtendedError = TRUE;
1583 else
1584 {
1585 AX_reg(context) = LOWORD(status);
1586 DX_reg(context) = HIWORD(status);
1587 }
1588 }
1589 break;
1590
1591 case 0x43: /* FILE ATTRIBUTES */
1592 switch (AL_reg(context))
1593 {
1594 case 0x00:
1595 TRACE("GET FILE ATTRIBUTES for %s\n",
1596 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1597 AX_reg(context) = (WORD)GetFileAttributesA(
1598 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1599 context->Edx));
1600 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1601 else CX_reg(context) = AX_reg(context);
1602 break;
1603
1604 case 0x01:
1605 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1606 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1607 bSetDOSExtendedError =
1608 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1609 context->Edx),
1610 CX_reg(context) ));
1611 break;
1612 case 0x02:
1613 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1614 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1615 }
1616 break;
1617
1618 case 0x44: /* IOCTL */
1619 switch (AL_reg(context))
1620 {
1621 case 0x00:
1622 ioctlGetDeviceInfo(context);
1623 break;
1624
1625 case 0x01:
1626 break;
1627 case 0x02:{
1628 const DOS_DEVICE *dev;
1629 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )) &&
1630 !strcasecmp( dev->name, "SCSIMGR$" ))
1631 {
1632 ASPI_DOS_HandleInt(context);
1633 }
1634 break;
1635 }
1636 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1637 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1638 int drive = DOS_GET_DRIVE(BL_reg(context));
1639
1640 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1641 /* for (i=0;i<CX_reg(context);i++)
1642 fprintf(stdnimp,"%02x ",dataptr[i]);
1643 fprintf(stdnimp,"\n");*/
1644 AX_reg(context)=CX_reg(context);
1645 break;
1646 }
1647 case 0x08: /* Check if drive is removable. */
1648 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1649 INT21_DriveName( BL_reg(context)));
1650 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1651 {
1652 case DRIVE_UNKNOWN:
1653 SetLastError( ERROR_INVALID_DRIVE );
1654 AX_reg(context) = ERROR_INVALID_DRIVE;
1655 SET_CFLAG(context);
1656 break;
1657 case DRIVE_REMOVABLE:
1658 AX_reg(context) = 0; /* removable */
1659 break;
1660 default:
1661 AX_reg(context) = 1; /* not removable */
1662 break;
1663 }
1664 break;
1665
1666 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1667 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1668 INT21_DriveName( BL_reg(context)));
1669 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1670 {
1671 case DRIVE_UNKNOWN:
1672 SetLastError( ERROR_INVALID_DRIVE );
1673 AX_reg(context) = ERROR_INVALID_DRIVE;
1674 SET_CFLAG(context);
1675 break;
1676 case DRIVE_REMOTE:
1677 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1678 break;
1679 default:
1680 DX_reg(context) = 0; /* FIXME: use driver attr here */
1681 break;
1682 }
1683 break;
1684
1685 case 0x0a: /* check if handle (BX) is remote */
1686 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1687 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1688 * not set on close
1689 */
1690 DX_reg(context) = 0;
1691 break;
1692
1693 case 0x0b: /* SET SHARING RETRY COUNT */
1694 TRACE("IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1695 CX_reg(context), DX_reg(context));
1696 if (!CX_reg(context))
1697 {
1698 AX_reg(context) = 1;
1699 SET_CFLAG(context);
1700 break;
1701 }
1702 DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
1703 if (!DX_reg(context))
1704 DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
1705 RESET_CFLAG(context);
1706 break;
1707
1708 case 0x0d:
1709 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1710 INT21_DriveName( BL_reg(context)));
1711 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1712 break;
1713
1714 case 0x0e: /* get logical drive mapping */
1715 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1716 INT21_DriveName( BL_reg(context)));
1717 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1718 break;
1719
1720 case 0x0F: /* Set logical drive mapping */
1721 {
1722 int drive;
1723 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1724 INT21_DriveName( BL_reg(context)));
1725 drive = DOS_GET_DRIVE ( BL_reg(context) );
1726 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1727 {
1728 SET_CFLAG(context);
1729 AX_reg(context) = 0x000F; /* invalid drive */
1730 }
1731 break;
1732 }
1733
1734 case 0xe0: /* Sun PC-NFS API */
1735 /* not installed */
1736 break;
1737
1738 case 0x52: /* DR-DOS version */
1739 /* This is not DR-DOS */
1740
1741 TRACE("GET DR-DOS VERSION requested\n");
1742
1743 AX_reg(context) = 0x0001; /* Invalid function */
1744 SET_CFLAG(context); /* Error */
1745 SetLastError( ERROR_INVALID_FUNCTION );
1746 break;
1747
1748 default:
1749 INT_BARF( context, 0x21 );
1750 break;
1751 }
1752 break;
1753
1754 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1755 {
1756 HANDLE handle;
1757 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1758 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1759 DosFileHandleToWin32Handle(BX_reg(context)),
1760 GetCurrentProcess(), &handle,
1761 0, TRUE, DUPLICATE_SAME_ACCESS )))
1762 AX_reg(context) = HFILE_ERROR16;
1763 else
1764 AX_reg(context) = Win32HandleToDosFileHandle(handle);
1765 break;
1766 }
1767
1768 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1769 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1770 BX_reg(context),CX_reg(context));
1771 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1772 break;
1773
1774 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1775 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1776 INT21_DriveName( DL_reg(context)));
1777 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1778 break;
1779
1780 case 0x48: /* ALLOCATE MEMORY */
1781 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1782 {
1783 LPVOID *mem;
1784 if (ISV86(context))
1785 {
1786 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1787 if (mem)
1788 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1789 }
1790 else
1791 {
1792 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1793 if (mem)
1794 AX_reg(context) = (DWORD)mem&0xffff;
1795 }
1796 if (!mem)
1797 {
1798 SET_CFLAG(context);
1799 AX_reg(context) = 0x0008; /* insufficient memory */
1800 BX_reg(context) = DOSMEM_Available()>>4;
1801 }
1802 }
1803 break;
1804
1805 case 0x49: /* FREE MEMORY */
1806 TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
1807 {
1808 BOOL ret;
1809 if (ISV86(context))
1810 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
1811 else
1812 {
1813 ret = !GlobalDOSFree16(context->SegEs);
1814 /* If we don't reset ES_reg, we will fail in the relay code */
1815 context->SegEs=ret;
1816 }
1817 if (!ret)
1818 {
1819 TRACE("FREE MEMORY failed\n");
1820 SET_CFLAG(context);
1821 AX_reg(context) = 0x0009; /* memory block address invalid */
1822 }
1823 }
1824 break;
1825
1826 case 0x4a: /* RESIZE MEMORY BLOCK */
1827 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
1828 if (!ISV86(context))
1829 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1830 {
1831 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
1832 BX_reg(context)<<4,NULL);
1833 if (mem)
1834 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1835 else {
1836 SET_CFLAG(context);
1837 AX_reg(context) = 0x0008; /* insufficient memory */
1838 BX_reg(context) = DOSMEM_Available()>>4; /* not quite right */
1839 }
1840 }
1841 break;
1842
1843 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1844 TRACE("EXEC %s\n",
1845 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
1846 if (ISV86(context)) {
1847 if (!Dosvm.Exec( context, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx),
1848 AL_reg(context), CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx) ))
1849 bSetDOSExtendedError = TRUE;
1850 } else {
1851 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1852 context->Edx ),
1853 SW_NORMAL );
1854 if (AX_reg(context) < 32) SET_CFLAG(context);
1855 }
1856 break;
1857
1858 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1859 TRACE("EXIT with return code %d\n",AL_reg(context));
1860 if (Dosvm.Exit) Dosvm.Exit( context, FALSE, AL_reg(context) );
1861 else ExitThread( AL_reg(context) );
1862 break;
1863
1864 case 0x4d: /* GET RETURN CODE */
1865 TRACE("GET RETURN CODE (ERRORLEVEL)\n");
1866 AX_reg(context) = INT21_GetReturnCode();
1867 break;
1868
1869 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1870 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1871 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1872 if (!INT21_FindFirst(context)) break;
1873 /* fall through */
1874
1875 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1876 TRACE("FINDNEXT\n");
1877 if (!INT21_FindNext(context))
1878 {
1879 SetLastError( ERROR_NO_MORE_FILES );
1880 AX_reg(context) = ERROR_NO_MORE_FILES;
1881 SET_CFLAG(context);
1882 }
1883 else AX_reg(context) = 0; /* OK */
1884 break;
1885 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1886 TRACE("SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1887 INT21_SetCurrentPSP(BX_reg(context));
1888 break;
1889 case 0x51: /* GET PSP ADDRESS */
1890 TRACE("GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1891 /* FIXME: should we return the original DOS PSP upon */
1892 /* Windows startup ? */
1893 BX_reg(context) = INT21_GetCurrentPSP();
1894 break;
1895 case 0x62: /* GET PSP ADDRESS */
1896 TRACE("GET CURRENT PSP ADDRESS\n");
1897 /* FIXME: should we return the original DOS PSP upon */
1898 /* Windows startup ? */
1899 BX_reg(context) = INT21_GetCurrentPSP();
1900 break;
1901
1902 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1903 TRACE("SYSVARS - GET LIST OF LISTS\n");
1904 {
1905 context->SegEs = ISV86(context) ? HIWORD(DOS_LOLSeg) : LOWORD(DOS_LOLSeg);
1906 BX_reg(context) = FIELD_OFFSET(DOS_LISTOFLISTS, ptr_first_DPB);
1907 }
1908 break;
1909
1910 case 0x54: /* Get Verify Flag */
1911 TRACE("Get Verify Flag - Not Supported\n");
1912 AL_reg(context) = 0x00; /* pretend we can tell. 00h = off 01h = on */
1913 break;
1914
1915 case 0x56: /* "RENAME" - RENAME FILE */
1916 TRACE("RENAME %s to %s\n",
1917 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1918 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi));
1919 bSetDOSExtendedError =
1920 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1921 CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi)));
1922 break;
1923
1924 case 0x57: /* FILE DATE AND TIME */
1925 switch (AL_reg(context))
1926 {
1927 case 0x00: /* Get */
1928 {
1929 FILETIME filetime;
1930 TRACE("GET FILE DATE AND TIME for handle %d\n",
1931 BX_reg(context));
1932 if (!GetFileTime( DosFileHandleToWin32Handle(BX_reg(context)), NULL, NULL, &filetime ))
1933 bSetDOSExtendedError = TRUE;
1934 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1935 &CX_reg(context) );
1936 }
1937 break;
1938
1939 case 0x01: /* Set */
1940 {
1941 FILETIME filetime;
1942 TRACE("SET FILE DATE AND TIME for handle %d\n",
1943 BX_reg(context));
1944 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1945 &filetime );
1946 bSetDOSExtendedError =
1947 (!SetFileTime( DosFileHandleToWin32Handle(BX_reg(context)),
1948 NULL, NULL, &filetime ));
1949 }
1950 break;
1951 }
1952 break;
1953
1954 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1955 TRACE("GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1956 AL_reg(context));
1957 switch (AL_reg(context))
1958 {
1959 case 0x00:
1960 AX_reg(context) = 1;
1961 break;
1962 case 0x02:
1963 AX_reg(context) = 0;
1964 break;
1965 case 0x01:
1966 case 0x03:
1967 break;
1968 }
1969 RESET_CFLAG(context);
1970 break;
1971
1972 case 0x5a: /* CREATE TEMPORARY FILE */
1973 TRACE("CREATE TEMPORARY FILE\n");
1974 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1975 break;
1976
1977 case 0x5b: /* CREATE NEW FILE */
1978 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1979 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1980 bSetDOSExtendedError = ((AX_reg(context) =
1981 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1982 CX_reg(context) )) == (WORD)HFILE_ERROR16);
1983 break;
1984
1985 case 0x5d: /* NETWORK */
1986 FIXME("Function 0x%04x not implemented.\n", AX_reg (context));
1987 /* Fix the following while you're at it. */
1988 SetLastError( ER_NoNetwork );
1989 bSetDOSExtendedError = TRUE;
1990 break;
1991
1992 case 0x5e:
1993 bSetDOSExtendedError = INT21_networkfunc (context);
1994 break;
1995
1996 case 0x5f: /* NETWORK */
1997 switch (AL_reg(context))
1998 {
1999 case 0x07: /* ENABLE DRIVE */
2000 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2001 if (!DRIVE_Enable( DL_reg(context) ))
2002 {
2003 SetLastError( ERROR_INVALID_DRIVE );
2004 bSetDOSExtendedError = TRUE;
2005 }
2006 break;
2007
2008 case 0x08: /* DISABLE DRIVE */
2009 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
2010 if (!DRIVE_Disable( DL_reg(context) ))
2011 {
2012 SetLastError( ERROR_INVALID_DRIVE );
2013 bSetDOSExtendedError = TRUE;
2014 }
2015 break;
2016
2017 default:
2018 /* network software not installed */
2019 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
2020 SetLastError( ER_NoNetwork );
2021 bSetDOSExtendedError = TRUE;
2022 break;
2023 }
2024 break;
2025
2026 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
2027 TRACE("TRUENAME %s\n",
2028 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
2029 {
2030 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2031 context->Esi), 128,
2032 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2033 context->Edi),NULL))
2034 bSetDOSExtendedError = TRUE;
2035 else AX_reg(context) = 0;
2036 }
2037 break;
2038
2039 case 0x61: /* UNUSED */
2040 case 0x63: /* misc. language support */
2041 switch (AL_reg(context)) {
2042 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
2043 INT21_GetDBCSLeadTable(context);
2044 break;
2045 }
2046 break;
2047 case 0x64: /* OS/2 DOS BOX */
2048 INT_BARF( context, 0x21 );
2049 SET_CFLAG(context);
2050 break;
2051
2052 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2053 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2054 TRACE("GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2055 BX_reg(context), DX_reg(context));
2056 switch (AL_reg(context)) {
2057 case 0x01:
2058 TRACE("\tget general internationalization info\n");
2059 dataptr[0] = 0x1;
2060 *(WORD*)(dataptr+1) = 41;
2061 *(WORD*)(dataptr+3) = GetSystemDefaultLangID();
2062 *(WORD*)(dataptr+5) = CodePage;
2063 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2064 break;
2065 case 0x06:
2066 TRACE("\tget pointer to collating sequence table\n");
2067 dataptr[0] = 0x06;
2068 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2069 CX_reg(context) = 258;/*FIXME: size of table?*/
2070 break;
2071 case 0x20:
2072 TRACE("\tConvert char to uppercase\n");
2073 DL_reg(context) = toupper(DL_reg(context));
2074 break;
2075 case 0x21:
2076 TRACE("\tconvert string to uppercase with length\n");
2077 {
2078 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
2079 WORD len = CX_reg(context);
2080 while (len--) { *ptr = toupper(*ptr); ptr++; }
2081 }
2082 break;
2083 case 0x22:
2084 TRACE("\tConvert ASCIIZ string to uppercase\n");
2085 _strupr( (LPSTR)CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx) );
2086 break;
2087 default:
2088 TRACE("\tunimplemented function %d\n",AL_reg(context));
2089 INT_BARF( context, 0x21 );
2090 SET_CFLAG(context);
2091 break;
2092 }
2093 break;
2094 }
2095 case 0x66: /* GLOBAL CODE PAGE TABLE */
2096 switch (AL_reg(context))
2097 {
2098 case 0x01:
2099 TRACE("GET GLOBAL CODE PAGE TABLE\n");
2100 DX_reg(context) = BX_reg(context) = CodePage;
2101 RESET_CFLAG(context);
2102 break;
2103 case 0x02:
2104 TRACE("SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2105 BX_reg(context),DX_reg(context));
2106 CodePage = BX_reg(context);
2107 RESET_CFLAG(context);
2108 break;
2109 }
2110 break;
2111
2112 case 0x67: /* SET HANDLE COUNT */
2113 TRACE("SET HANDLE COUNT to %d\n",BX_reg(context) );
2114 SetHandleCount16( BX_reg(context) );
2115 if (GetLastError()) bSetDOSExtendedError = TRUE;
2116 break;
2117
2118 case 0x68: /* "FFLUSH" - COMMIT FILE */
2119 case 0x6a: /* COMMIT FILE */
2120 TRACE("FFLUSH/COMMIT handle %d\n",BX_reg(context));
2121 bSetDOSExtendedError = (!FlushFileBuffers( DosFileHandleToWin32Handle(BX_reg(context)) ));
2122 break;
2123
2124 case 0x69: /* DISK SERIAL NUMBER */
2125 switch (AL_reg(context))
2126 {
2127 case 0x00:
2128 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
2129 INT21_DriveName(BL_reg(context)));
2130 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2131 else AX_reg(context) = 0;
2132 break;
2133
2134 case 0x01:
2135 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
2136 INT21_DriveName(BL_reg(context)));
2137 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2138 else AX_reg(context) = 1;
2139 break;
2140 }
2141 break;
2142
2143 case 0x6C: /* Extended Open/Create*/
2144 TRACE("EXTENDED OPEN/CREATE %s\n",
2145 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
2146 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2147 break;
2148
2149 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2150 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2151 /* not supported on anything but Win95 */
2152 TRACE("LONG FILENAME functions supported only by win95\n");
2153 SET_CFLAG(context);
2154 AL_reg(context) = 0;
2155 } else
2156 switch(AL_reg(context))
2157 {
2158 case 0x39: /* Create directory */
2159 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
2160 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2161 bSetDOSExtendedError = (!CreateDirectoryA(
2162 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2163 context->Edx ), NULL));
2164 /* FIXME: CreateDirectory's LastErrors will clash with the ones
2165 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
2166 * denied), while CreateDirectory return several ones. remap some of
2167 * them. -Marcus
2168 */
2169 if (bSetDOSExtendedError) {
2170 switch (GetLastError()) {
2171 case ERROR_ALREADY_EXISTS:
2172 case ERROR_FILENAME_EXCED_RANGE:
2173 case ERROR_DISK_FULL:
2174 SetLastError(ERROR_ACCESS_DENIED);
2175 break;
2176 default: break;
2177 }
2178 }
2179 break;
2180 case 0x3a: /* Remove directory */
2181 TRACE("LONG FILENAME - REMOVE DIRECTORY %s\n",
2182 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2183 bSetDOSExtendedError = (!RemoveDirectoryA(
2184 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2185 context->Edx )));
2186 break;
2187 case 0x43: /* Get/Set file attributes */
2188 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2189 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2190 switch (BL_reg(context))
2191 {
2192 case 0x00: /* Get file attributes */
2193 TRACE("\tretrieve attributes\n");
2194 CX_reg(context) = (WORD)GetFileAttributesA(
2195 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2196 context->Edx));
2197 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2198 break;
2199 case 0x01:
2200 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
2201 bSetDOSExtendedError = (!SetFileAttributesA(
2202 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2203 context->Edx),
2204 CX_reg(context) ) );
2205 break;
2206 default:
2207 FIXME("Unimplemented long file name function:\n");
2208 INT_BARF( context, 0x21 );
2209 SET_CFLAG(context);
2210 AL_reg(context) = 0;
2211 break;
2212 }
2213 break;
2214 case 0x47: /* Get current directory */
2215 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2216 INT21_DriveName(DL_reg(context)));
2217 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2218 break;
2219
2220 case 0x4e: /* Find first file */
2221 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2222 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
2223 /* FIXME: use attributes in CX */
2224 if ((AX_reg(context) = FindFirstFile16(
2225 CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
2226 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2227 context->Edi)))
2228 == INVALID_HANDLE_VALUE16)
2229 bSetDOSExtendedError = TRUE;
2230 break;
2231 case 0x4f: /* Find next file */
2232 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2233 BX_reg(context));
2234 if (!FindNextFile16( BX_reg(context),
2235 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2236 context->Edi)))
2237 bSetDOSExtendedError = TRUE;
2238 break;
2239 case 0xa0:
2240 {
2241 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
2242 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
2243 DWORD filename_len, flags;
2244
2245 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
2246 AX_reg(context) = 0;
2247 if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
2248 &flags, buffer, 8 ))
2249 {
2250 INT_BARF( context, 0x21 );
2251 SET_CFLAG(context);
2252 break;
2253 }
2254 BX_reg(context) = flags | 0x4000; /* support for LFN functions */
2255 CX_reg(context) = filename_len;
2256 DX_reg(context) = MAX_PATH; /* FIXME: which len if DRIVE_SHORT_NAMES ? */
2257 }
2258 break;
2259 case 0xa1: /* Find close */
2260 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
2261 BX_reg(context));
2262 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2263 break;
2264 case 0x60:
2265 switch(CL_reg(context))
2266 {
2267 case 0x01: /* Get short filename or path */
2268 if (!GetShortPathNameA
2269 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2270 context->Esi),
2271 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2272 context->Edi), 67))
2273 bSetDOSExtendedError = TRUE;
2274 else AX_reg(context) = 0;
2275 break;
2276 case 0x02: /* Get canonical long filename or path */
2277 if (!GetFullPathNameA
2278 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2279 context->Esi), 128,
2280 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2281 context->Edi),NULL))
2282 bSetDOSExtendedError = TRUE;
2283 else AX_reg(context) = 0;
2284 break;
2285 default:
2286 FIXME("Unimplemented long file name function:\n");
2287 INT_BARF( context, 0x21 );
2288 SET_CFLAG(context);
2289 AL_reg(context) = 0;
2290 break;
2291 }
2292 break;
2293 case 0x6c: /* Create or open file */
2294 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
2295 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
2296 /* translate Dos 7 action to Dos 6 action */
2297 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2298 break;
2299
2300 case 0x3b: /* Change directory */
2301 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2302 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2303 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2304 context->SegDs,
2305 context->Edx
2306 ))
2307 ) {
2308 SET_CFLAG(context);
2309 AL_reg(context) = GetLastError();
2310 }
2311 break;
2312 case 0x41: /* Delete file */
2313 TRACE("LONG FILENAME - DELETE FILE %s\n",
2314 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2315 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2316 context->SegDs,
2317 context->Edx)
2318 )) {
2319 SET_CFLAG(context);
2320 AL_reg(context) = GetLastError();
2321 }
2322 break;
2323 case 0x56: /* Move (rename) file */
2324 {
2325 LPCSTR fn1 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2326 LPCSTR fn2 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2327 TRACE("LONG FILENAME - RENAME FILE %s to %s\n", fn1, fn2);
2328 if (!MoveFileA(fn1, fn2))
2329 {
2330 SET_CFLAG(context);
2331 AL_reg(context) = GetLastError();
2332 }
2333 }
2334 break;
2335 default:
2336 FIXME("Unimplemented long file name function:\n");
2337 INT_BARF( context, 0x21 );
2338 SET_CFLAG(context);
2339 AL_reg(context) = 0;
2340 break;
2341 }
2342 break;
2343
2344 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2345 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2346 TRACE("windows95 function AX %04x\n",
2347 AX_reg(context));
2348 WARN(" returning unimplemented\n");
2349 SET_CFLAG(context);
2350 AL_reg(context) = 0;
2351 break;
2352
2353 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2354 TRACE("windows95 function AX %04x\n",
2355 AX_reg(context));
2356
2357 switch (AL_reg(context))
2358 {
2359 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2360 /* ES:DI points to word with length of data (should be 0x3d) */
2361 {
2362 WORD *buffer;
2363 struct EDPB *edpb;
2364 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2365 char root[] = "A:\\";
2366
2367 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2368
2369 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2370
2371 /* validate passed-in buffer lengths */
2372 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
2373 {
2374 WARN("Get Extended DPB: buffer lengths incorrect\n");
2375 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
2376 SET_CFLAG(context);
2377 AL_reg(context) = 0x18; /* bad buffer length */
2378 }
2379
2380 /* buffer checks out */
2381 buffer++; /* skip over length word now */
2382 if (FillInDrivePB( DX_reg(context) ) )
2383 {
2384 edpb = (struct EDPB *)buffer;
2385
2386 /* copy down the old-style DPB portion first */
2387 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2388
2389 /* now fill in the extended entries */
2390 edpb->edpb_flags = 0;
2391 edpb->next_edpb = 0;
2392 edpb->free_cluster = edpb->free_cluster2 = 0;
2393
2394 /* determine free disk space */
2395 *root += DOS_GET_DRIVE( DX_reg(context) );
2396 GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
2397 &free_clusters, &total_clusters );
2398
2399 edpb->clusters_free = (free_clusters&0xffff);
2400
2401 edpb->clusters_free_hi = free_clusters >> 16;
2402 edpb->mirroring_flags = 0;
2403 edpb->info_sector = 0xffff;
2404 edpb->spare_boot_sector = 0xffff;
2405 edpb->first_cluster = 0;
2406 edpb->max_cluster = total_clusters;
2407 edpb->fat_clusters = 32; /* made-up value */
2408 edpb->root_cluster = 0;
2409
2410 RESET_CFLAG(context); /* clear carry */
2411 AX_reg(context) = 0;
2412 }
2413 else
2414 {
2415 AX_reg(context) = 0x00ff;
2416 SET_CFLAG(context);
2417 }
2418 }
2419 break;
2420
2421 case 0x03: /* Get Extended free space on drive */
2422 case 0x04: /* Set DPB for formatting */
2423 case 0x05: /* extended absolute disk read/write */
2424 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2425 SET_CFLAG(context);
2426 AL_reg(context) = 0;
2427 break;
2428 }
2429
2430 break;
2431
2432
2433 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2434 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2435 break;
2436
2437 default:
2438 INT_BARF( context, 0x21 );
2439 break;
2440
2441 } /* END OF SWITCH */
2442
2443 if( bSetDOSExtendedError ) /* set general error condition */
2444 {
2445 AX_reg(context) = GetLastError();
2446 SET_CFLAG(context);
2447 }
2448
2449 if ((context->EFlags & 0x0001))
2450 TRACE("failed, error 0x%04lx\n", GetLastError() );
2451
2452 TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2453 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2454 AX_reg(context), BX_reg(context), CX_reg(context),
2455 DX_reg(context), SI_reg(context), DI_reg(context),
2456 (WORD)context->SegDs, (WORD)context->SegEs,
2457 context->EFlags);
2458 }
2459
2460 /***********************************************************************
2461 * GetSetKernelDOSProc
2462 */
2463 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2464 {
2465 FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);
2466 return NULL;
2467 }
2468
Windows API implementation