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Return TRUE on success in COMM_BuildOldCommDCB.
[wine.git] / msdos / int21.c
blob60ceb371f437b8ab620ca0900b8fe6e1a63ddfc0
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 "msdos.h"
30 #include "options.h"
31 #include "miscemu.h"
32 #include "task.h"
33 #include "dosexe.h"
34 #include "callback.h"
35 #include "debugtools.h"
36 #include "console.h"
37
38 DEFAULT_DEBUG_CHANNEL(int21);
39 #if defined(__svr4__) || defined(_SCO_DS)
40 /* SVR4 DOESNT do locking the same way must implement properly */
41 #define LOCK_EX 0
42 #define LOCK_SH 1
43 #define LOCK_NB 8
44 #endif
45
46
47 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
48
49 /* Define the drive parameter block, as used by int21/1F
50 * and int21/32. This table can be accessed through the
51 * global 'dpb' pointer, which points into the local dos
52 * heap.
53 */
54 struct DPB
55 {
56 BYTE drive_num; /* 0=A, etc. */
57 BYTE unit_num; /* Drive's unit number (?) */
58 WORD sector_size; /* Sector size in bytes */
59 BYTE high_sector; /* Highest sector in a cluster */
60 BYTE shift; /* Shift count (?) */
61 WORD reserved; /* Number of reserved sectors at start */
62 BYTE num_FAT; /* Number of FATs */
63 WORD dir_entries; /* Number of root dir entries */
64 WORD first_data; /* First data sector */
65 WORD high_cluster; /* Highest cluster number */
66 WORD sectors_in_FAT; /* Number of sectors per FAT */
67 WORD start_dir; /* Starting sector of first dir */
68 DWORD driver_head; /* Address of device driver header (?) */
69 BYTE media_ID; /* Media ID */
70 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
71 DWORD next; /* Pointer to next DPB in list */
72 WORD free_search; /* Free cluster search start */
73 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
74 };
75
76 struct EDPB /* FAT32 extended Drive Parameter Block */
77 { /* from Ralf Brown's Interrupt List */
78 struct DPB dpb; /* first 24 bytes = original DPB */
79
80 BYTE edpb_flags; /* undocumented/unknown flags */
81 DWORD next_edpb; /* pointer to next EDPB */
82 WORD free_cluster; /* cluster to start search for free space on write, typically
83 the last cluster allocated */
84 WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
85 WORD clusters_free_hi; /* hiword of clusters_free */
86 WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
87 /* bits 0-3 = 0-based number of the active FAT */
88 WORD info_sector; /* sector number of file system info sector, or FFFF for none */
89 WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
90 DWORD first_cluster; /* sector number of the first cluster */
91 DWORD max_cluster; /* sector number of the last cluster */
92 DWORD fat_clusters; /* number of clusters occupied by FAT */
93 DWORD root_cluster; /* cluster number of start of root directory */
94 DWORD free_cluster2; /* same as free_cluster: cluster at which to start
95 search for free space when writing */
96
97 };
98
99 WORD CodePage = 437;
100 DWORD dpbsegptr;
101
102 struct DosHeap {
103 BYTE InDosFlag;
104 BYTE mediaID;
105 BYTE biosdate[8];
106 struct DPB dpb;
107 BYTE DummyDBCSLeadTable[6];
108 };
109 static struct DosHeap *heap;
110 static WORD DosHeapHandle;
111
112 extern char TempDirectory[];
113
114 static BOOL INT21_CreateHeap(void)
115 {
116 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
117 {
118 WARN("Out of memory\n");
119 return FALSE;
120 }
121 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
122 dpbsegptr = MAKESEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
123 heap->InDosFlag = 0;
124 strcpy(heap->biosdate, "01/01/80");
125 memset(heap->DummyDBCSLeadTable, 0, 6);
126 return TRUE;
127 }
128
129 static BYTE *GetCurrentDTA( CONTEXT86 *context )
130 {
131 TDB *pTask = TASK_GetCurrent();
132
133 /* FIXME: This assumes DTA was set correctly! */
134 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
135 (DWORD)OFFSETOF(pTask->dta) );
136 }
137
138
139 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
140 /* limited == TRUE is used with INT 0x21/0x440d */
141 {
142 if (drive > 1) {
143 setword(data, 512);
144 data[2] = 2;
145 setword(&data[3], 0);
146 data[5] = 2;
147 setword(&data[6], 240);
148 setword(&data[8], 64000);
149 data[0x0a] = 0xf8;
150 setword(&data[0x0b], 40);
151 setword(&data[0x0d], 56);
152 setword(&data[0x0f], 2);
153 setword(&data[0x11], 0);
154 if (!limited) {
155 setword(&data[0x1f], 800);
156 data[0x21] = 5;
157 setword(&data[0x22], 1);
158 }
159 } else { /* 1.44mb */
160 setword(data, 512);
161 data[2] = 2;
162 setword(&data[3], 0);
163 data[5] = 2;
164 setword(&data[6], 240);
165 setword(&data[8], 2880);
166 data[0x0a] = 0xf8;
167 setword(&data[0x0b], 6);
168 setword(&data[0x0d], 18);
169 setword(&data[0x0f], 2);
170 setword(&data[0x11], 0);
171 if (!limited) {
172 setword(&data[0x1f], 80);
173 data[0x21] = 7;
174 setword(&data[0x22], 2);
175 }
176 }
177 }
178
179 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
180 {
181 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
182 char root[] = "A:\\";
183
184 *root += DOS_GET_DRIVE( DL_reg(context) );
185 if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
186 &free_clusters, &total_clusters )) return 0;
187 AX_reg(context) = cluster_sectors;
188 BX_reg(context) = free_clusters;
189 CX_reg(context) = sector_bytes;
190 DX_reg(context) = total_clusters;
191 return 1;
192 }
193
194 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
195 {
196 if (!INT21_GetFreeDiskSpace( context )) return 0;
197 if (!heap && !INT21_CreateHeap()) return 0;
198 heap->mediaID = 0xf0;
199 context->SegDs = DosHeapHandle;
200 BX_reg(context) = (int)&heap->mediaID - (int)heap;
201 return 1;
202 }
203
204 static int FillInDrivePB( int drive )
205 {
206 if(!DRIVE_IsValid(drive))
207 {
208 SetLastError( ERROR_INVALID_DRIVE );
209 return 0;
210 }
211 else if (heap || INT21_CreateHeap())
212 {
213 /* FIXME: I have no idea what a lot of this information should
214 * say or whether it even really matters since we're not allowing
215 * direct block access. However, some programs seem to depend on
216 * getting at least _something_ back from here. The 'next' pointer
217 * does worry me, though. Should we have a complete table of
218 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
219 */
220 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
221 heap->dpb.sector_size = 512;
222 heap->dpb.high_sector = 1;
223 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
224 heap->dpb.reserved = 0;
225 heap->dpb.num_FAT = 1;
226 heap->dpb.dir_entries = 2;
227 heap->dpb.first_data = 2;
228 heap->dpb.high_cluster = 64000;
229 heap->dpb.sectors_in_FAT = 1;
230 heap->dpb.start_dir = 1;
231 heap->dpb.driver_head = 0;
232 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
233 heap->dpb.access_flag = 0;
234 heap->dpb.next = 0;
235 heap->dpb.free_search = 0;
236 heap->dpb.free_clusters = 0xFFFF; /* unknown */
237 return 1;
238 }
239
240 return 0;
241 }
242
243 static void GetDrivePB( CONTEXT86 *context, int drive )
244 {
245 if (FillInDrivePB( drive ))
246 {
247 AL_reg(context) = 0x00;
248 context->SegDs = SELECTOROF(dpbsegptr);
249 BX_reg(context) = OFFSETOF(dpbsegptr);
250 }
251 else
252 {
253 AX_reg(context) = 0x00ff;
254 }
255 }
256
257
258 static void ioctlGetDeviceInfo( CONTEXT86 *context )
259 {
260 int curr_drive;
261 const DOS_DEVICE *dev;
262
263 TRACE("(%d)\n", BX_reg(context));
264
265 RESET_CFLAG(context);
266
267 /* DOS device ? */
268 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )))
269 {
270 DX_reg(context) = dev->flags;
271 return;
272 }
273
274 /* it seems to be a file */
275 curr_drive = DRIVE_GetCurrentDrive();
276 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
277 /* no floppy */
278 /* bits 0-5 are current drive
279 * bit 6 - file has NOT been written..FIXME: correct?
280 * bit 8 - generate int24 if no diskspace on write/ read past end of file
281 * bit 11 - media not removable
282 * bit 14 - don't set file date/time on closing
283 * bit 15 - file is remote
284 */
285 }
286
287 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
288 {
289 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
290 int drive = DOS_GET_DRIVE( BL_reg(context) );
291
292 if (!DRIVE_IsValid(drive))
293 {
294 SetLastError( ERROR_FILE_NOT_FOUND );
295 return TRUE;
296 }
297
298 if (CH_reg(context) != 0x08)
299 {
300 INT_BARF( context, 0x21 );
301 return FALSE;
302 }
303
304 switch (CL_reg(context))
305 {
306 case 0x4a: /* lock logical volume */
307 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
308 break;
309
310 case 0x60: /* get device parameters */
311 /* used by w4wgrp's winfile */
312 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
313 dataptr[0] = 0x04;
314 dataptr[6] = 0; /* media type */
315 if (drive > 1)
316 {
317 dataptr[1] = 0x05; /* fixed disk */
318 setword(&dataptr[2], 0x01); /* non removable */
319 setword(&dataptr[4], 0x300); /* # of cylinders */
320 }
321 else
322 {
323 dataptr[1] = 0x07; /* block dev, floppy */
324 setword(&dataptr[2], 0x02); /* removable */
325 setword(&dataptr[4], 80); /* # of cylinders */
326 }
327 CreateBPB(drive, &dataptr[7], TRUE);
328 RESET_CFLAG(context);
329 break;
330
331 case 0x41: /* write logical device track */
332 case 0x61: /* read logical device track */
333 {
334 BYTE drive = BL_reg(context) ?
335 BL_reg(context) : DRIVE_GetCurrentDrive();
336 WORD head = *(WORD *)dataptr+1;
337 WORD cyl = *(WORD *)dataptr+3;
338 WORD sect = *(WORD *)dataptr+5;
339 WORD nrsect = *(WORD *)dataptr+7;
340 BYTE *data = (BYTE *)dataptr+9;
341 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
342
343 raw_func = (CL_reg(context) == 0x41) ?
344 DRIVE_RawWrite : DRIVE_RawRead;
345
346 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
347 RESET_CFLAG(context);
348 else
349 {
350 AX_reg(context) = 0x1e; /* read fault */
351 SET_CFLAG(context);
352 }
353 }
354 break;
355 case 0x66:/* get disk serial number */
356 {
357 char label[12],fsname[9],path[4];
358 DWORD serial;
359
360 strcpy(path,"x:\\");path[0]=drive+'A';
361 GetVolumeInformationA(
362 path,label,12,&serial,NULL,NULL,fsname,9
363 );
364 *(WORD*)dataptr = 0;
365 memcpy(dataptr+2,&serial,4);
366 memcpy(dataptr+6,label ,11);
367 memcpy(dataptr+17,fsname,8);
368 }
369 break;
370
371 case 0x6a:
372 TRACE("logical volume %d unlocked.\n",drive);
373 break;
374
375 case 0x6f:
376 memset(dataptr+1, '\0', dataptr[0]-1);
377 dataptr[1] = dataptr[0];
378 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
379 dataptr[3] = 0xFF; /* no physical drive */
380 break;
381
382 case 0x72:
383 /* Trail on error implementation */
384 AX_reg(context) = GetDriveType16(BL_reg(context)) == DRIVE_UNKNOWN ? 0x0f : 0x01;
385 SET_CFLAG(context); /* Seems to be set all the time */
386 break;
387
388 default:
389 INT_BARF( context, 0x21 );
390 }
391 return FALSE;
392 }
393
394 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
395 {
396 char *filename =
397 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
398 char *fcb =
399 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
400 char *buffer, *s, *d;
401
402 AL_reg(context) = 0xff; /* failed */
403
404 TRACE("filename: '%s'\n", filename);
405
406 buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
407
408 s = filename;
409 d = buffer;
410 while (*s)
411 {
412 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
413 *d++ = *s++;
414 else
415 break;
416 }
417
418 *d = '\0';
419 DOSFS_ToDosFCBFormat(buffer, fcb + 1);
420 *fcb = 0;
421 TRACE("FCB: '%s'\n", ((CHAR *)fcb + 1));
422
423 HeapFree( GetProcessHeap(), 0, buffer);
424
425 AL_reg(context) =
426 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
427
428 /* point DS:SI to first unparsed character */
429 SI_reg(context) += (int)s - (int)filename;
430 }
431
432 static void INT21_GetSystemDate( CONTEXT86 *context )
433 {
434 SYSTEMTIME systime;
435 GetLocalTime( &systime );
436 CX_reg(context) = systime.wYear;
437 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
438 AX_reg(context) = systime.wDayOfWeek;
439 }
440
441 static void INT21_GetSystemTime( CONTEXT86 *context )
442 {
443 SYSTEMTIME systime;
444 GetLocalTime( &systime );
445 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
446 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
447 }
448
449 /* Many calls translate a drive argument like this:
450 drive number (00h = default, 01h = A:, etc)
451 */
452 static char drivestring[]="default";
453
454 char *INT21_DriveName(int drive)
455 {
456
457 if(drive >0)
458 {
459 drivestring[0]= (unsigned char)drive + '@';
460 drivestring[1]=':';
461 drivestring[2]=0;
462 }
463 return drivestring;
464 }
465 static BOOL INT21_CreateFile( CONTEXT86 *context )
466 {
467 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
468 context->Edx ), CX_reg(context) );
469 return (AX_reg(context) == (WORD)HFILE_ERROR16);
470 }
471
472 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
473 {
474 /* Mask off all flags not explicitly allowed by the doc */
475 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
476 return Win32HandleToDosFileHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
477 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
478 CREATE_NEW, attr, 0 ));
479 }
480
481 static void OpenExistingFile( CONTEXT86 *context )
482 {
483 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
484 AL_reg(context) );
485 if (AX_reg(context) == (WORD)HFILE_ERROR16)
486 {
487 AX_reg(context) = GetLastError();
488 SET_CFLAG(context);
489 }
490 }
491
492 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
493 {
494 BOOL bExtendedError = FALSE;
495 BYTE action = DL_reg(context);
496
497 /* Shuffle arguments to call OpenExistingFile */
498 AL_reg(context) = BL_reg(context);
499 DX_reg(context) = SI_reg(context);
500 /* BX,CX and DX should be preserved */
501 OpenExistingFile(context);
502
503 if ((context->EFlags & 0x0001) == 0) /* File exists */
504 {
505 UINT16 uReturnCX = 0;
506
507 /* Now decide what do do */
508
509 if ((action & 0x07) == 0)
510 {
511 _lclose16( AX_reg(context) );
512 AX_reg(context) = 0x0050; /*File exists*/
513 SET_CFLAG(context);
514 WARN("extended open/create: failed because file exists \n");
515 }
516 else if ((action & 0x07) == 2)
517 {
518 /* Truncate it, but first check if opened for write */
519 if ((BL_reg(context) & 0x0007)== 0)
520 {
521 _lclose16( AX_reg(context) );
522 WARN("extended open/create: failed, trunc on ro file\n");
523 AX_reg(context) = 0x000C; /*Access code invalid*/
524 SET_CFLAG(context);
525 }
526 else
527 {
528 TRACE("extended open/create: Closing before truncate\n");
529 if (_lclose16( AX_reg(context) ))
530 {
531 WARN("extended open/create: close before trunc failed\n");
532 AX_reg(context) = 0x0019; /*Seek Error*/
533 CX_reg(context) = 0;
534 SET_CFLAG(context);
535 }
536 /* Shuffle arguments to call CreateFile */
537
538 TRACE("extended open/create: Truncating\n");
539 AL_reg(context) = BL_reg(context);
540 /* CX is still the same */
541 DX_reg(context) = SI_reg(context);
542 bExtendedError = INT21_CreateFile(context);
543
544 if (context->EFlags & 0x0001) /*no file open, flags set */
545 {
546 WARN("extended open/create: trunc failed\n");
547 return bExtendedError;
548 }
549 uReturnCX = 0x3;
550 }
551 }
552 else uReturnCX = 0x1;
553
554 CX_reg(context) = uReturnCX;
555 }
556 else /* file does not exist */
557 {
558 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
559 if ((action & 0xF0)== 0)
560 {
561 CX_reg(context) = 0;
562 SET_CFLAG(context);
563 WARN("extended open/create: failed, file dosen't exist\n");
564 }
565 else
566 {
567 /* Shuffle arguments to call CreateFile */
568 TRACE("extended open/create: Creating\n");
569 AL_reg(context) = BL_reg(context);
570 /* CX should still be the same */
571 DX_reg(context) = SI_reg(context);
572 bExtendedError = INT21_CreateFile(context);
573 if (context->EFlags & 0x0001) /*no file open, flags set */
574 {
575 WARN("extended open/create: create failed\n");
576 return bExtendedError;
577 }
578 CX_reg(context) = 2;
579 }
580 }
581
582 return bExtendedError;
583 }
584
585
586 static BOOL INT21_ChangeDir( CONTEXT86 *context )
587 {
588 int drive;
589 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
590
591 TRACE("changedir %s\n", dirname);
592 if (dirname[0] && (dirname[1] == ':'))
593 {
594 drive = toupper(dirname[0]) - 'A';
595 dirname += 2;
596 }
597 else drive = DRIVE_GetCurrentDrive();
598 return DRIVE_Chdir( drive, dirname );
599 }
600
601
602 static int INT21_FindFirst( CONTEXT86 *context )
603 {
604 char *p;
605 const char *path;
606 DOS_FULL_NAME full_name;
607 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
608
609 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
610 dta->unixPath = NULL;
611 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
612 {
613 AX_reg(context) = GetLastError();
614 SET_CFLAG(context);
615 return 0;
616 }
617 dta->unixPath = HeapAlloc( GetProcessHeap(), 0, strlen(full_name.long_name)+1 );
618 strcpy( dta->unixPath, 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 * INT_Int21Handler (WPROCS.133)
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 if (Dosvm.Exit) Dosvm.Exit( context, FALSE, 0 );
1149 else ExitThread( 0 );
1150 break;
1151
1152 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1153 TRACE("DIRECT CHARACTER INPUT WITH ECHO\n");
1154 AL_reg(context) = CONSOLE_GetCharacter();
1155 /* FIXME: no echo */
1156 break;
1157
1158 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1159 TRACE("Write Character to Standard Output\n");
1160 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1161 break;
1162
1163 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1164 /* FIXME: Use DOSDEV_Peek/Read/Write(DOSDEV_Console(),...) !! */
1165 if (DL_reg(context) == 0xff) {
1166 static char scan = 0;
1167 TRACE("Direct Console Input\n");
1168 if (scan) {
1169 /* return pending scancode */
1170 AL_reg(context) = scan;
1171 RESET_ZFLAG(context);
1172 scan = 0;
1173 } else {
1174 char ascii;
1175 if (INT_Int16ReadChar(&ascii,&scan,TRUE)) {
1176 INT_Int16ReadChar(&ascii,&scan,FALSE);
1177 /* return ASCII code */
1178 AL_reg(context) = ascii;
1179 RESET_ZFLAG(context);
1180 /* return scan code on next call only if ascii==0 */
1181 if (ascii) scan = 0;
1182 } else {
1183 /* nothing pending, clear everything */
1184 AL_reg(context) = 0;
1185 SET_ZFLAG(context);
1186 scan = 0; /* just in case */
1187 }
1188 }
1189 } else {
1190 TRACE("Direct Console Output\n");
1191 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1192 }
1193 break;
1194
1195 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1196 /* FIXME: Use DOSDEV_Peek/Read(DOSDEV_Console(),...) !! */
1197 TRACE("DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1198 INT_Int16ReadChar(&AL_reg(context), NULL, FALSE);
1199 break;
1200
1201 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1202 /* FIXME: Use DOSDEV_Peek/Read(DOSDEV_Console(),...) !! */
1203 TRACE("CHARACTER INPUT WITHOUT ECHO\n");
1204 INT_Int16ReadChar(&AL_reg(context), NULL, FALSE);
1205 break;
1206
1207 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1208 TRACE("WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1209 context->SegDs,DX_reg(context) );
1210 {
1211 LPSTR data = CTX_SEG_OFF_TO_LIN(context,context->SegDs,context->Edx);
1212 LPSTR p = data;
1213 /* do NOT use strchr() to calculate the string length,
1214 as '\0' is valid string content, too !
1215 Maybe we should check for non-'$' strings, but DOS doesn't. */
1216 while (*p != '$') p++;
1217 _hwrite16( 1, data, (int)p - (int)data);
1218 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1219 }
1220 break;
1221
1222 case 0x0a: /* BUFFERED INPUT */
1223 {
1224 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1225 context->Edx ));
1226 int res;
1227
1228 TRACE("BUFFERED INPUT (size=%d)\n",buffer[0]);
1229 if (buffer[1])
1230 TRACE("Handle old chars in buffer!\n");
1231 res=_lread16( 0, buffer+2,buffer[0]);
1232 buffer[1]=res;
1233 if(buffer[res+1] == '\n')
1234 buffer[res+1] = '\r';
1235 break;
1236 }
1237
1238 case 0x0b: {/* GET STDIN STATUS */
1239 char x1,x2;
1240
1241 if (CONSOLE_CheckForKeystroke(&x1,&x2))
1242 AL_reg(context) = 0xff;
1243 else
1244 AL_reg(context) = 0;
1245 break;
1246 }
1247 case 0x2e: /* SET VERIFY FLAG */
1248 TRACE("SET VERIFY FLAG ignored\n");
1249 /* we cannot change the behaviour anyway, so just ignore it */
1250 break;
1251
1252 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1253 case 0x1d:
1254 case 0x1e:
1255 case 0x20:
1256 case 0x6b: /* NULL FUNCTION */
1257 AL_reg(context) = 0;
1258 break;
1259
1260 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1261 fLock(context);
1262 break;
1263
1264 case 0x0d: /* DISK BUFFER FLUSH */
1265 TRACE("DISK BUFFER FLUSH ignored\n");
1266 RESET_CFLAG(context); /* dos 6+ only */
1267 break;
1268
1269 case 0x0e: /* SELECT DEFAULT DRIVE */
1270 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1271 DRIVE_SetCurrentDrive( DL_reg(context) );
1272 AL_reg(context) = MAX_DOS_DRIVES;
1273 break;
1274
1275 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1276 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
1277 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1278 if (!INT21_FindFirstFCB(context))
1279 {
1280 AL_reg(context) = 0xff;
1281 break;
1282 }
1283 /* else fall through */
1284
1285 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1286 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1287 break;
1288
1289 case 0x13: /* DELETE FILE USING FCB */
1290 DeleteFileFCB(context);
1291 break;
1292
1293 case 0x17: /* RENAME FILE USING FCB */
1294 RenameFileFCB(context);
1295 break;
1296
1297 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1298 AL_reg(context) = DRIVE_GetCurrentDrive();
1299 break;
1300
1301 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1302 {
1303 TDB *pTask = TASK_GetCurrent();
1304 pTask->dta = MAKESEGPTR(context->SegDs,DX_reg(context));
1305 TRACE("Set DTA: %08lx\n", pTask->dta);
1306 }
1307 break;
1308
1309 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1310 DL_reg(context) = 0;
1311 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1312 break;
1313
1314 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1315 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1316 break;
1317
1318 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1319 GetDrivePB(context, DRIVE_GetCurrentDrive());
1320 break;
1321
1322 case 0x25: /* SET INTERRUPT VECTOR */
1323 INT_CtxSetHandler( context, AL_reg(context),
1324 (FARPROC16)MAKESEGPTR( context->SegDs, 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 = TASK_GetCurrent();
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 MAKESEGPTR( context->SegDs, context->Edx ),
1548 CX_reg(context) );
1549 if (result == -1) bSetDOSExtendedError = TRUE;
1550 else AX_reg(context) = (WORD)result;
1551 }
1552 break;
1553
1554 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1555 TRACE("WRITE from %04lX:%04X to handle %d for %d byte\n",
1556 context->SegDs,DX_reg(context),BX_reg(context),CX_reg(context) );
1557 {
1558 LONG result = _hwrite16( BX_reg(context),
1559 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1560 context->Edx ),
1561 CX_reg(context) );
1562 if (result == -1) bSetDOSExtendedError = TRUE;
1563 else AX_reg(context) = (WORD)result;
1564 }
1565 break;
1566
1567 case 0x41: /* "UNLINK" - DELETE FILE */
1568 TRACE("UNLINK %s\n",
1569 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1570 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1571 context->Edx )));
1572 break;
1573
1574 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1575 TRACE("LSEEK handle %d offset %ld from %s\n",
1576 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1577 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1578 "current file position":"end of file");
1579 {
1580 LONG status = _llseek16( BX_reg(context),
1581 MAKELONG(DX_reg(context),CX_reg(context)),
1582 AL_reg(context) );
1583 if (status == -1) bSetDOSExtendedError = TRUE;
1584 else
1585 {
1586 AX_reg(context) = LOWORD(status);
1587 DX_reg(context) = HIWORD(status);
1588 }
1589 }
1590 break;
1591
1592 case 0x43: /* FILE ATTRIBUTES */
1593 switch (AL_reg(context))
1594 {
1595 case 0x00:
1596 TRACE("GET FILE ATTRIBUTES for %s\n",
1597 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1598 AX_reg(context) = (WORD)GetFileAttributesA(
1599 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1600 context->Edx));
1601 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1602 else CX_reg(context) = AX_reg(context);
1603 break;
1604
1605 case 0x01:
1606 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1607 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1608 bSetDOSExtendedError =
1609 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1610 context->Edx),
1611 CX_reg(context) ));
1612 break;
1613 case 0x02:
1614 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1615 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1616 }
1617 break;
1618
1619 case 0x44: /* IOCTL */
1620 switch (AL_reg(context))
1621 {
1622 case 0x00:
1623 ioctlGetDeviceInfo(context);
1624 break;
1625
1626 case 0x01:
1627 break;
1628 case 0x02:{
1629 const DOS_DEVICE *dev;
1630 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )) &&
1631 !strcasecmp( dev->name, "SCSIMGR$" ))
1632 {
1633 ASPI_DOS_HandleInt(context);
1634 }
1635 break;
1636 }
1637 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1638 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1639 int drive = DOS_GET_DRIVE(BL_reg(context));
1640
1641 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1642 /* for (i=0;i<CX_reg(context);i++)
1643 fprintf(stdnimp,"%02x ",dataptr[i]);
1644 fprintf(stdnimp,"\n");*/
1645 AX_reg(context)=CX_reg(context);
1646 break;
1647 }
1648 case 0x08: /* Check if drive is removable. */
1649 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1650 INT21_DriveName( BL_reg(context)));
1651 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1652 {
1653 case DRIVE_UNKNOWN:
1654 SetLastError( ERROR_INVALID_DRIVE );
1655 AX_reg(context) = ERROR_INVALID_DRIVE;
1656 SET_CFLAG(context);
1657 break;
1658 case DRIVE_REMOVABLE:
1659 AX_reg(context) = 0; /* removable */
1660 break;
1661 default:
1662 AX_reg(context) = 1; /* not removable */
1663 break;
1664 }
1665 break;
1666
1667 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1668 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1669 INT21_DriveName( BL_reg(context)));
1670 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1671 {
1672 case DRIVE_UNKNOWN:
1673 SetLastError( ERROR_INVALID_DRIVE );
1674 AX_reg(context) = ERROR_INVALID_DRIVE;
1675 SET_CFLAG(context);
1676 break;
1677 case DRIVE_REMOTE:
1678 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1679 break;
1680 default:
1681 DX_reg(context) = 0; /* FIXME: use driver attr here */
1682 break;
1683 }
1684 break;
1685
1686 case 0x0a: /* check if handle (BX) is remote */
1687 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1688 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1689 * not set on close
1690 */
1691 DX_reg(context) = 0;
1692 break;
1693
1694 case 0x0b: /* SET SHARING RETRY COUNT */
1695 TRACE("IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1696 CX_reg(context), DX_reg(context));
1697 if (!CX_reg(context))
1698 {
1699 AX_reg(context) = 1;
1700 SET_CFLAG(context);
1701 break;
1702 }
1703 DOSMEM_LOL()->sharing_retry_delay = CX_reg(context);
1704 if (!DX_reg(context))
1705 DOSMEM_LOL()->sharing_retry_count = DX_reg(context);
1706 RESET_CFLAG(context);
1707 break;
1708
1709 case 0x0d:
1710 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1711 INT21_DriveName( BL_reg(context)));
1712 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1713 break;
1714
1715 case 0x0e: /* get logical drive mapping */
1716 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1717 INT21_DriveName( BL_reg(context)));
1718 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1719 break;
1720
1721 case 0x0F: /* Set logical drive mapping */
1722 {
1723 int drive;
1724 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1725 INT21_DriveName( BL_reg(context)));
1726 drive = DOS_GET_DRIVE ( BL_reg(context) );
1727 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1728 {
1729 SET_CFLAG(context);
1730 AX_reg(context) = 0x000F; /* invalid drive */
1731 }
1732 break;
1733 }
1734
1735 case 0xe0: /* Sun PC-NFS API */
1736 /* not installed */
1737 break;
1738
1739 case 0x52: /* DR-DOS version */
1740 /* This is not DR-DOS */
1741
1742 TRACE("GET DR-DOS VERSION requested\n");
1743
1744 AX_reg(context) = 0x0001; /* Invalid function */
1745 SET_CFLAG(context); /* Error */
1746 SetLastError( ERROR_INVALID_FUNCTION );
1747 break;
1748
1749 default:
1750 INT_BARF( context, 0x21 );
1751 break;
1752 }
1753 break;
1754
1755 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1756 {
1757 HANDLE handle;
1758 TRACE("DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1759 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1760 DosFileHandleToWin32Handle(BX_reg(context)),
1761 GetCurrentProcess(), &handle,
1762 0, TRUE, DUPLICATE_SAME_ACCESS )))
1763 AX_reg(context) = HFILE_ERROR16;
1764 else
1765 AX_reg(context) = Win32HandleToDosFileHandle(handle);
1766 break;
1767 }
1768
1769 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1770 TRACE("FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1771 BX_reg(context),CX_reg(context));
1772 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1773 break;
1774
1775 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1776 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1777 INT21_DriveName( DL_reg(context)));
1778 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1779 break;
1780
1781 case 0x48: /* ALLOCATE MEMORY */
1782 TRACE("ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1783 {
1784 LPVOID *mem;
1785 if (ISV86(context))
1786 {
1787 mem= DOSMEM_GetBlock((DWORD)BX_reg(context)<<4,NULL);
1788 if (mem)
1789 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1790 }
1791 else
1792 {
1793 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1794 if (mem)
1795 AX_reg(context) = (DWORD)mem&0xffff;
1796 }
1797 if (!mem)
1798 {
1799 SET_CFLAG(context);
1800 AX_reg(context) = 0x0008; /* insufficient memory */
1801 BX_reg(context) = DOSMEM_Available()>>4;
1802 }
1803 }
1804 break;
1805
1806 case 0x49: /* FREE MEMORY */
1807 TRACE("FREE MEMORY segment %04lX\n", context->SegEs);
1808 {
1809 BOOL ret;
1810 if (ISV86(context))
1811 ret= DOSMEM_FreeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4));
1812 else
1813 {
1814 ret = !GlobalDOSFree16(context->SegEs);
1815 /* If we don't reset ES_reg, we will fail in the relay code */
1816 context->SegEs=ret;
1817 }
1818 if (!ret)
1819 {
1820 TRACE("FREE MEMORY failed\n");
1821 SET_CFLAG(context);
1822 AX_reg(context) = 0x0009; /* memory block address invalid */
1823 }
1824 }
1825 break;
1826
1827 case 0x4a: /* RESIZE MEMORY BLOCK */
1828 TRACE("RESIZE MEMORY segment %04lX to %d paragraphs\n", context->SegEs, BX_reg(context));
1829 if (!ISV86(context))
1830 FIXME("RESIZE MEMORY probably insufficient implementation. Expect crash soon\n");
1831 {
1832 LPVOID *mem = DOSMEM_ResizeBlock(DOSMEM_MapDosToLinear(context->SegEs<<4),
1833 BX_reg(context)<<4,NULL);
1834 if (mem)
1835 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1836 else {
1837 SET_CFLAG(context);
1838 AX_reg(context) = 0x0008; /* insufficient memory */
1839 BX_reg(context) = DOSMEM_Available()>>4; /* not quite right */
1840 }
1841 }
1842 break;
1843
1844 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1845 TRACE("EXEC %s\n",
1846 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx ));
1847 if (ISV86(context)) {
1848 if (!Dosvm.Exec( context, CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx),
1849 AL_reg(context), CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Ebx) ))
1850 bSetDOSExtendedError = TRUE;
1851 } else {
1852 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1853 context->Edx ),
1854 SW_NORMAL );
1855 if (AX_reg(context) < 32) SET_CFLAG(context);
1856 }
1857 break;
1858
1859 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1860 TRACE("EXIT with return code %d\n",AL_reg(context));
1861 if (Dosvm.Exit) Dosvm.Exit( context, FALSE, AL_reg(context) );
1862 else ExitThread( 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( DosFileHandleToWin32Handle(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( DosFileHandleToWin32Handle(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( DosFileHandleToWin32Handle(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 DWORD filename_len, flags;
2245
2246 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
2247 AX_reg(context) = 0;
2248 if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
2249 &flags, buffer, 8 ))
2250 {
2251 INT_BARF( context, 0x21 );
2252 SET_CFLAG(context);
2253 break;
2254 }
2255 BX_reg(context) = flags | 0x4000; /* support for LFN functions */
2256 CX_reg(context) = filename_len;
2257 DX_reg(context) = MAX_PATH; /* FIXME: which len if DRIVE_SHORT_NAMES ? */
2258 }
2259 break;
2260 case 0xa1: /* Find close */
2261 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
2262 BX_reg(context));
2263 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2264 break;
2265 case 0x60:
2266 switch(CL_reg(context))
2267 {
2268 case 0x01: /* Get short filename or path */
2269 if (!GetShortPathNameA
2270 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2271 context->Esi),
2272 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2273 context->Edi), 67))
2274 bSetDOSExtendedError = TRUE;
2275 else AX_reg(context) = 0;
2276 break;
2277 case 0x02: /* Get canonical long filename or path */
2278 if (!GetFullPathNameA
2279 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
2280 context->Esi), 128,
2281 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
2282 context->Edi),NULL))
2283 bSetDOSExtendedError = TRUE;
2284 else AX_reg(context) = 0;
2285 break;
2286 default:
2287 FIXME("Unimplemented long file name function:\n");
2288 INT_BARF( context, 0x21 );
2289 SET_CFLAG(context);
2290 AL_reg(context) = 0;
2291 break;
2292 }
2293 break;
2294 case 0x6c: /* Create or open file */
2295 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
2296 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
2297 /* translate Dos 7 action to Dos 6 action */
2298 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2299 break;
2300
2301 case 0x3b: /* Change directory */
2302 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
2303 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2304 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2305 context->SegDs,
2306 context->Edx
2307 ))
2308 ) {
2309 SET_CFLAG(context);
2310 AL_reg(context) = GetLastError();
2311 }
2312 break;
2313 case 0x41: /* Delete file */
2314 TRACE("LONG FILENAME - DELETE FILE %s\n",
2315 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
2316 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2317 context->SegDs,
2318 context->Edx)
2319 )) {
2320 SET_CFLAG(context);
2321 AL_reg(context) = GetLastError();
2322 }
2323 break;
2324 case 0x56: /* Move (rename) file */
2325 {
2326 LPCSTR fn1 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
2327 LPCSTR fn2 = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2328 TRACE("LONG FILENAME - RENAME FILE %s to %s\n", fn1, fn2);
2329 if (!MoveFileA(fn1, fn2))
2330 {
2331 SET_CFLAG(context);
2332 AL_reg(context) = GetLastError();
2333 }
2334 }
2335 break;
2336 default:
2337 FIXME("Unimplemented long file name function:\n");
2338 INT_BARF( context, 0x21 );
2339 SET_CFLAG(context);
2340 AL_reg(context) = 0;
2341 break;
2342 }
2343 break;
2344
2345 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2346 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2347 TRACE("windows95 function AX %04x\n",
2348 AX_reg(context));
2349 WARN(" returning unimplemented\n");
2350 SET_CFLAG(context);
2351 AL_reg(context) = 0;
2352 break;
2353
2354 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
2355 TRACE("windows95 function AX %04x\n",
2356 AX_reg(context));
2357
2358 switch (AL_reg(context))
2359 {
2360 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
2361 /* ES:DI points to word with length of data (should be 0x3d) */
2362 {
2363 WORD *buffer;
2364 struct EDPB *edpb;
2365 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
2366 char root[] = "A:\\";
2367
2368 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
2369
2370 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
2371
2372 /* validate passed-in buffer lengths */
2373 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
2374 {
2375 WARN("Get Extended DPB: buffer lengths incorrect\n");
2376 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
2377 SET_CFLAG(context);
2378 AL_reg(context) = 0x18; /* bad buffer length */
2379 }
2380
2381 /* buffer checks out */
2382 buffer++; /* skip over length word now */
2383 if (FillInDrivePB( DX_reg(context) ) )
2384 {
2385 edpb = (struct EDPB *)buffer;
2386
2387 /* copy down the old-style DPB portion first */
2388 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
2389
2390 /* now fill in the extended entries */
2391 edpb->edpb_flags = 0;
2392 edpb->next_edpb = 0;
2393 edpb->free_cluster = edpb->free_cluster2 = 0;
2394
2395 /* determine free disk space */
2396 *root += DOS_GET_DRIVE( DX_reg(context) );
2397 GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
2398 &free_clusters, &total_clusters );
2399
2400 edpb->clusters_free = (free_clusters&0xffff);
2401
2402 edpb->clusters_free_hi = free_clusters >> 16;
2403 edpb->mirroring_flags = 0;
2404 edpb->info_sector = 0xffff;
2405 edpb->spare_boot_sector = 0xffff;
2406 edpb->first_cluster = 0;
2407 edpb->max_cluster = total_clusters;
2408 edpb->fat_clusters = 32; /* made-up value */
2409 edpb->root_cluster = 0;
2410
2411 RESET_CFLAG(context); /* clear carry */
2412 AX_reg(context) = 0;
2413 }
2414 else
2415 {
2416 AX_reg(context) = 0x00ff;
2417 SET_CFLAG(context);
2418 }
2419 }
2420 break;
2421
2422 case 0x03: /* Get Extended free space on drive */
2423 case 0x04: /* Set DPB for formatting */
2424 case 0x05: /* extended absolute disk read/write */
2425 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
2426 SET_CFLAG(context);
2427 AL_reg(context) = 0;
2428 break;
2429 }
2430
2431 break;
2432
2433
2434 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2435 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2436 break;
2437
2438 default:
2439 INT_BARF( context, 0x21 );
2440 break;
2441
2442 } /* END OF SWITCH */
2443
2444 if( bSetDOSExtendedError ) /* set general error condition */
2445 {
2446 AX_reg(context) = GetLastError();
2447 SET_CFLAG(context);
2448 }
2449
2450 if ((context->EFlags & 0x0001))
2451 TRACE("failed, error 0x%04lx\n", GetLastError() );
2452
2453 TRACE("returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2454 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2455 AX_reg(context), BX_reg(context), CX_reg(context),
2456 DX_reg(context), SI_reg(context), DI_reg(context),
2457 (WORD)context->SegDs, (WORD)context->SegEs,
2458 context->EFlags);
2459 }
2460
2461 /***********************************************************************
2462 * GetSetKernelDOSProc (KERNEL.311)
2463 */
2464 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2465 {
2466 FIXME("(DosProc=0x%08x): stub\n", (UINT)DosProc);
2467 return NULL;
2468 }
2469
Windows API implementation