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Fix CreateProcess to handle lpCommandline better.
[wine/multimedia.git] / msdos / int21.c
blobd53b1616d4aac8e83f869f827d0998b0a6db5fd6
1 /*
2 * DOS interrupt 21h handler
3 */
4
5 #include <time.h>
6 #include <fcntl.h>
7 #include <errno.h>
8 #include <stdlib.h>
9 #ifdef HAVE_SYS_FILE_H
10 # include <sys/file.h>
11 #endif
12 #include <string.h>
13 #include <sys/stat.h>
14 #include <sys/time.h>
15 #include <sys/types.h>
16 #include <unistd.h>
17 #include <utime.h>
18 #include <ctype.h>
19 #include "windef.h"
20 #include "winbase.h"
21 #include "winuser.h" /* SW_NORMAL */
22 #include "wine/winbase16.h"
23 #include "winerror.h"
24 #include "drive.h"
25 #include "file.h"
26 #include "heap.h"
27 #include "msdos.h"
28 #include "ldt.h"
29 #include "task.h"
30 #include "options.h"
31 #include "miscemu.h"
32 #include "dosexe.h" /* for the MZ_SUPPORTED define */
33 #include "module.h"
34 #include "debug.h"
35 #include "console.h"
36 #if defined(__svr4__) || defined(_SCO_DS)
37 /* SVR4 DOESNT do locking the same way must implement properly */
38 #define LOCK_EX 0
39 #define LOCK_SH 1
40 #define LOCK_NB 8
41 #endif
42
43
44 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
45
46 /* Define the drive parameter block, as used by int21/1F
47 * and int21/32. This table can be accessed through the
48 * global 'dpb' pointer, which points into the local dos
49 * heap.
50 */
51 struct DPB
52 {
53 BYTE drive_num; /* 0=A, etc. */
54 BYTE unit_num; /* Drive's unit number (?) */
55 WORD sector_size; /* Sector size in bytes */
56 BYTE high_sector; /* Highest sector in a cluster */
57 BYTE shift; /* Shift count (?) */
58 WORD reserved; /* Number of reserved sectors at start */
59 BYTE num_FAT; /* Number of FATs */
60 WORD dir_entries; /* Number of root dir entries */
61 WORD first_data; /* First data sector */
62 WORD high_cluster; /* Highest cluster number */
63 WORD sectors_in_FAT; /* Number of sectors per FAT */
64 WORD start_dir; /* Starting sector of first dir */
65 DWORD driver_head; /* Address of device driver header (?) */
66 BYTE media_ID; /* Media ID */
67 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
68 DWORD next; /* Pointer to next DPB in list */
69 WORD free_search; /* Free cluster search start */
70 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
71 };
72
73 WORD CodePage = 437;
74 DWORD dpbsegptr;
75
76 struct DosHeap {
77 BYTE InDosFlag;
78 BYTE mediaID;
79 BYTE biosdate[8];
80 struct DPB dpb;
81 BYTE DummyDBCSLeadTable[6];
82 };
83 static struct DosHeap *heap;
84 static WORD DosHeapHandle;
85
86 WORD sharing_retries = 3; /* number of retries at sharing violation */
87 WORD sharing_pause = 1; /* pause between retries */
88
89 extern char TempDirectory[];
90
91 static BOOL INT21_CreateHeap(void)
92 {
93 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
94 {
95 WARN(int21, "Out of memory\n");
96 return FALSE;
97 }
98 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
99 dpbsegptr = PTR_SEG_OFF_TO_SEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
100 heap->InDosFlag = 0;
101 strcpy(heap->biosdate, "01/01/80");
102 memset(heap->DummyDBCSLeadTable, 0, 6);
103 return TRUE;
104 }
105
106 static BYTE *GetCurrentDTA( CONTEXT *context )
107 {
108 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
109
110 /* FIXME: This assumes DTA was set correctly! */
111 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
112 (DWORD)OFFSETOF(pTask->dta) );
113 }
114
115
116 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
117 /* limited == TRUE is used with INT 0x21/0x440d */
118 {
119 if (drive > 1) {
120 setword(data, 512);
121 data[2] = 2;
122 setword(&data[3], 0);
123 data[5] = 2;
124 setword(&data[6], 240);
125 setword(&data[8], 64000);
126 data[0x0a] = 0xf8;
127 setword(&data[0x0b], 40);
128 setword(&data[0x0d], 56);
129 setword(&data[0x0f], 2);
130 setword(&data[0x11], 0);
131 if (!limited) {
132 setword(&data[0x1f], 800);
133 data[0x21] = 5;
134 setword(&data[0x22], 1);
135 }
136 } else { /* 1.44mb */
137 setword(data, 512);
138 data[2] = 2;
139 setword(&data[3], 0);
140 data[5] = 2;
141 setword(&data[6], 240);
142 setword(&data[8], 2880);
143 data[0x0a] = 0xf8;
144 setword(&data[0x0b], 6);
145 setword(&data[0x0d], 18);
146 setword(&data[0x0f], 2);
147 setword(&data[0x11], 0);
148 if (!limited) {
149 setword(&data[0x1f], 80);
150 data[0x21] = 7;
151 setword(&data[0x22], 2);
152 }
153 }
154 }
155
156 static int INT21_GetFreeDiskSpace( CONTEXT *context )
157 {
158 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
159 char root[] = "A:\\";
160
161 *root += DOS_GET_DRIVE( DL_reg(context) );
162 if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
163 &free_clusters, &total_clusters )) return 0;
164 AX_reg(context) = cluster_sectors;
165 BX_reg(context) = free_clusters;
166 CX_reg(context) = sector_bytes;
167 DX_reg(context) = total_clusters;
168 return 1;
169 }
170
171 static int INT21_GetDriveAllocInfo( CONTEXT *context )
172 {
173 if (!INT21_GetFreeDiskSpace( context )) return 0;
174 if (!heap && !INT21_CreateHeap()) return 0;
175 heap->mediaID = 0xf0;
176 DS_reg(context) = DosHeapHandle;
177 BX_reg(context) = (int)&heap->mediaID - (int)heap;
178 return 1;
179 }
180
181 static void GetDrivePB( CONTEXT *context, int drive )
182 {
183 if(!DRIVE_IsValid(drive))
184 {
185 SetLastError( ERROR_INVALID_DRIVE );
186 AX_reg(context) = 0x00ff;
187 }
188 else if (heap || INT21_CreateHeap())
189 {
190 FIXME(int21, "GetDrivePB not fully implemented.\n");
191
192 /* FIXME: I have no idea what a lot of this information should
193 * say or whether it even really matters since we're not allowing
194 * direct block access. However, some programs seem to depend on
195 * getting at least _something_ back from here. The 'next' pointer
196 * does worry me, though. Should we have a complete table of
197 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
198 */
199 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
200 heap->dpb.sector_size = 512;
201 heap->dpb.high_sector = 1;
202 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
203 heap->dpb.reserved = 0;
204 heap->dpb.num_FAT = 1;
205 heap->dpb.dir_entries = 2;
206 heap->dpb.first_data = 2;
207 heap->dpb.high_cluster = 64000;
208 heap->dpb.sectors_in_FAT = 1;
209 heap->dpb.start_dir = 1;
210 heap->dpb.driver_head = 0;
211 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
212 heap->dpb.access_flag = 0;
213 heap->dpb.next = 0;
214 heap->dpb.free_search = 0;
215 heap->dpb.free_clusters = 0xFFFF; /* unknown */
216
217 AL_reg(context) = 0x00;
218 DS_reg(context) = SELECTOROF(dpbsegptr);
219 BX_reg(context) = OFFSETOF(dpbsegptr);
220 }
221 }
222
223
224 static void ioctlGetDeviceInfo( CONTEXT *context )
225 {
226 int curr_drive;
227 const DOS_DEVICE *dev;
228
229 TRACE(int21, "(%d)\n", BX_reg(context));
230
231 RESET_CFLAG(context);
232
233 /* DOS device ? */
234 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )))
235 {
236 DX_reg(context) = dev->flags;
237 return;
238 }
239
240 /* it seems to be a file */
241 curr_drive = DRIVE_GetCurrentDrive();
242 DX_reg(context) = 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0);
243 /* no floppy */
244 /* bits 0-5 are current drive
245 * bit 6 - file has NOT been written..FIXME: correct?
246 * bit 8 - generate int24 if no diskspace on write/ read past end of file
247 * bit 11 - media not removable
248 * bit 14 - don't set file date/time on closing
249 * bit 15 - file is remote
250 */
251 }
252
253 static BOOL ioctlGenericBlkDevReq( CONTEXT *context )
254 {
255 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
256 int drive = DOS_GET_DRIVE( BL_reg(context) );
257
258 if (!DRIVE_IsValid(drive))
259 {
260 SetLastError( ERROR_FILE_NOT_FOUND );
261 return TRUE;
262 }
263
264 if (CH_reg(context) != 0x08)
265 {
266 INT_BARF( context, 0x21 );
267 return FALSE;
268 }
269
270 switch (CL_reg(context))
271 {
272 case 0x4a: /* lock logical volume */
273 TRACE(int21,"lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
274 break;
275
276 case 0x60: /* get device parameters */
277 /* used by w4wgrp's winfile */
278 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
279 dataptr[0] = 0x04;
280 dataptr[6] = 0; /* media type */
281 if (drive > 1)
282 {
283 dataptr[1] = 0x05; /* fixed disk */
284 setword(&dataptr[2], 0x01); /* non removable */
285 setword(&dataptr[4], 0x300); /* # of cylinders */
286 }
287 else
288 {
289 dataptr[1] = 0x07; /* block dev, floppy */
290 setword(&dataptr[2], 0x02); /* removable */
291 setword(&dataptr[4], 80); /* # of cylinders */
292 }
293 CreateBPB(drive, &dataptr[7], TRUE);
294 RESET_CFLAG(context);
295 break;
296
297 case 0x41: /* write logical device track */
298 case 0x61: /* read logical device track */
299 {
300 BYTE drive = BL_reg(context) ?
301 BL_reg(context) : DRIVE_GetCurrentDrive();
302 WORD head = *(WORD *)dataptr+1;
303 WORD cyl = *(WORD *)dataptr+3;
304 WORD sect = *(WORD *)dataptr+5;
305 WORD nrsect = *(WORD *)dataptr+7;
306 BYTE *data = (BYTE *)dataptr+9;
307 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
308
309 raw_func = (CL_reg(context) == 0x41) ?
310 DRIVE_RawWrite : DRIVE_RawRead;
311
312 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
313 RESET_CFLAG(context);
314 else
315 {
316 AX_reg(context) = 0x1e; /* read fault */
317 SET_CFLAG(context);
318 }
319 }
320 break;
321 case 0x66:/* get disk serial number */
322 {
323 char label[12],fsname[9],path[4];
324 DWORD serial;
325
326 strcpy(path,"x:\\");path[0]=drive+'A';
327 GetVolumeInformationA(
328 path,label,12,&serial,NULL,NULL,fsname,9
329 );
330 *(WORD*)dataptr = 0;
331 memcpy(dataptr+2,&serial,4);
332 memcpy(dataptr+6,label ,11);
333 memcpy(dataptr+17,fsname,8);
334 }
335 break;
336
337 case 0x6a:
338 TRACE(int21,"logical volume %d unlocked.\n",drive);
339 break;
340
341 case 0x6f:
342 memset(dataptr+1, '\0', dataptr[0]-1);
343 dataptr[1] = dataptr[0];
344 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
345 dataptr[3] = 0xFF; /* no physical drive */
346 break;
347
348 default:
349 INT_BARF( context, 0x21 );
350 }
351 return FALSE;
352 }
353
354 static void INT21_ParseFileNameIntoFCB( CONTEXT *context )
355 {
356 char *filename =
357 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
358 char *fcb =
359 CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context) );
360 char *buffer, *s, *d;
361
362 AL_reg(context) = 0xff; /* failed */
363
364 TRACE(int21, "filename: '%s'\n", filename);
365
366 buffer = HeapAlloc( GetProcessHeap(), 0, strlen(filename) + 1);
367
368 s = filename;
369 d = buffer;
370 while (*s)
371 {
372 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
373 *d++ = *s++;
374 else
375 break;
376 }
377
378 *d = '\0';
379 DOSFS_ToDosFCBFormat(buffer, fcb + 1);
380 *fcb = 0;
381 TRACE(int21, "FCB: '%s'\n", ((CHAR *)fcb + 1));
382
383 HeapFree( GetProcessHeap(), 0, buffer);
384
385 AL_reg(context) =
386 ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0;
387
388 /* point DS:SI to first unparsed character */
389 SI_reg(context) += (int)s - (int)filename;
390 }
391
392 static void INT21_GetSystemDate( CONTEXT *context )
393 {
394 SYSTEMTIME systime;
395 GetLocalTime( &systime );
396 CX_reg(context) = systime.wYear;
397 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
398 AX_reg(context) = systime.wDayOfWeek;
399 }
400
401 static void INT21_GetSystemTime( CONTEXT *context )
402 {
403 SYSTEMTIME systime;
404 GetLocalTime( &systime );
405 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
406 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
407 }
408
409 /* Many calls translate a drive argument like this:
410 drive number (00h = default, 01h = A:, etc)
411 */
412 static char drivestring[]="default";
413
414 char *INT21_DriveName(int drive)
415 {
416
417 if(drive >0)
418 {
419 drivestring[0]= (unsigned char)drive + '@';
420 drivestring[1]=':';
421 drivestring[2]=0;
422 }
423 return drivestring;
424 }
425 static BOOL INT21_CreateFile( CONTEXT *context )
426 {
427 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
428 EDX_reg(context) ), CX_reg(context) );
429 return (AX_reg(context) == (WORD)HFILE_ERROR16);
430 }
431
432
433 static void OpenExistingFile( CONTEXT *context )
434 {
435 AX_reg(context) = _lopen16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
436 AL_reg(context) );
437 if (AX_reg(context) == (WORD)HFILE_ERROR16)
438 {
439 AX_reg(context) = GetLastError();
440 SET_CFLAG(context);
441 }
442 }
443
444 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT *context )
445 {
446 BOOL bExtendedError = FALSE;
447 BYTE action = DL_reg(context);
448
449 /* Shuffle arguments to call OpenExistingFile */
450 AL_reg(context) = BL_reg(context);
451 DX_reg(context) = SI_reg(context);
452 /* BX,CX and DX should be preserved */
453 OpenExistingFile(context);
454
455 if ((EFL_reg(context) & 0x0001) == 0) /* File exists */
456 {
457 UINT16 uReturnCX = 0;
458
459 /* Now decide what do do */
460
461 if ((action & 0x07) == 0)
462 {
463 _lclose16( AX_reg(context) );
464 AX_reg(context) = 0x0050; /*File exists*/
465 SET_CFLAG(context);
466 WARN(int21, "extended open/create: failed because file exists \n");
467 }
468 else if ((action & 0x07) == 2)
469 {
470 /* Truncate it, but first check if opened for write */
471 if ((BL_reg(context) & 0x0007)== 0)
472 {
473 _lclose16( AX_reg(context) );
474 WARN(int21, "extended open/create: failed, trunc on ro file\n");
475 AX_reg(context) = 0x000C; /*Access code invalid*/
476 SET_CFLAG(context);
477 }
478 else
479 {
480 TRACE(int21, "extended open/create: Closing before truncate\n");
481 if (_lclose16( AX_reg(context) ))
482 {
483 WARN(int21, "extended open/create: close before trunc failed\n");
484 AX_reg(context) = 0x0019; /*Seek Error*/
485 CX_reg(context) = 0;
486 SET_CFLAG(context);
487 }
488 /* Shuffle arguments to call CreateFile */
489
490 TRACE(int21, "extended open/create: Truncating\n");
491 AL_reg(context) = BL_reg(context);
492 /* CX is still the same */
493 DX_reg(context) = SI_reg(context);
494 bExtendedError = INT21_CreateFile(context);
495
496 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
497 {
498 WARN(int21, "extended open/create: trunc failed\n");
499 return bExtendedError;
500 }
501 uReturnCX = 0x3;
502 }
503 }
504 else uReturnCX = 0x1;
505
506 CX_reg(context) = uReturnCX;
507 }
508 else /* file does not exist */
509 {
510 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
511 if ((action & 0xF0)== 0)
512 {
513 CX_reg(context) = 0;
514 SET_CFLAG(context);
515 WARN(int21, "extended open/create: failed, file dosen't exist\n");
516 }
517 else
518 {
519 /* Shuffle arguments to call CreateFile */
520 TRACE(int21, "extended open/create: Creating\n");
521 AL_reg(context) = BL_reg(context);
522 /* CX should still be the same */
523 DX_reg(context) = SI_reg(context);
524 bExtendedError = INT21_CreateFile(context);
525 if (EFL_reg(context) & 0x0001) /*no file open, flags set */
526 {
527 WARN(int21, "extended open/create: create failed\n");
528 return bExtendedError;
529 }
530 CX_reg(context) = 2;
531 }
532 }
533
534 return bExtendedError;
535 }
536
537
538 static BOOL INT21_ChangeDir( CONTEXT *context )
539 {
540 int drive;
541 char *dirname = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));
542
543 TRACE(int21,"changedir %s\n", dirname);
544 if (dirname[0] && (dirname[1] == ':'))
545 {
546 drive = toupper(dirname[0]) - 'A';
547 dirname += 2;
548 }
549 else drive = DRIVE_GetCurrentDrive();
550 return DRIVE_Chdir( drive, dirname );
551 }
552
553
554 static int INT21_FindFirst( CONTEXT *context )
555 {
556 char *p;
557 const char *path;
558 DOS_FULL_NAME full_name;
559 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
560
561 path = (const char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
562 dta->unixPath = NULL;
563 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
564 {
565 AX_reg(context) = GetLastError();
566 SET_CFLAG(context);
567 return 0;
568 }
569 dta->unixPath = HEAP_strdupA( GetProcessHeap(), 0, full_name.long_name );
570 p = strrchr( dta->unixPath, '/' );
571 *p = '\0';
572
573 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
574 * (doesn't matter as it is set below anyway)
575 */
576 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
577 {
578 HeapFree( GetProcessHeap(), 0, dta->unixPath );
579 dta->unixPath = NULL;
580 SetLastError( ERROR_FILE_NOT_FOUND );
581 AX_reg(context) = ERROR_FILE_NOT_FOUND;
582 SET_CFLAG(context);
583 return 0;
584 }
585 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
586 : DRIVE_GetCurrentDrive();
587 dta->count = 0;
588 dta->search_attr = CL_reg(context);
589 return 1;
590 }
591
592
593 static int INT21_FindNext( CONTEXT *context )
594 {
595 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
596 WIN32_FIND_DATAA entry;
597 int count;
598
599 if (!dta->unixPath) return 0;
600 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
601 dta->search_attr, dta->count, &entry )))
602 {
603 HeapFree( GetProcessHeap(), 0, dta->unixPath );
604 dta->unixPath = NULL;
605 return 0;
606 }
607 if ((int)dta->count + count > 0xffff)
608 {
609 WARN(int21, "Too many directory entries in %s\n", dta->unixPath );
610 HeapFree( GetProcessHeap(), 0, dta->unixPath );
611 dta->unixPath = NULL;
612 return 0;
613 }
614 dta->count += count;
615 dta->fileattr = entry.dwFileAttributes;
616 dta->filesize = entry.nFileSizeLow;
617 FileTimeToDosDateTime( &entry.ftLastWriteTime,
618 &dta->filedate, &dta->filetime );
619 strcpy( dta->filename, entry.cAlternateFileName );
620 if (!memchr(dta->mask,'?',11)) {
621 /* wildcardless search, release resources in case no findnext will
622 * be issued, and as a workaround in case file creation messes up
623 * findnext, as sometimes happens with pkunzip */
624 HeapFree( GetProcessHeap(), 0, dta->unixPath );
625 dta->unixPath = NULL;
626 }
627 return 1;
628 }
629
630
631 static BOOL INT21_CreateTempFile( CONTEXT *context )
632 {
633 static int counter = 0;
634 char *name = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context) );
635 char *p = name + strlen(name);
636
637 /* despite what Ralf Brown says, some programs seem to call without
638 * ending backslash (DOS accepts that, so we accept it too) */
639 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
640
641 for (;;)
642 {
643 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
644 counter = (counter + 1) % 1000;
645
646 if ((AX_reg(context) = _lcreat16_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
647 {
648 TRACE(int21, "created %s\n", name );
649 return TRUE;
650 }
651 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
652 }
653 }
654
655
656 static BOOL INT21_GetCurrentDirectory( CONTEXT *context )
657 {
658 int drive = DOS_GET_DRIVE( DL_reg(context) );
659 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context) );
660
661 if (!DRIVE_IsValid(drive))
662 {
663 SetLastError( ERROR_INVALID_DRIVE );
664 return FALSE;
665 }
666 lstrcpynA( ptr, DRIVE_GetDosCwd(drive), 64 );
667 AX_reg(context) = 0x0100; /* success return code */
668 return TRUE;
669 }
670
671
672 static void INT21_GetDBCSLeadTable( CONTEXT *context )
673 {
674 if (heap || INT21_CreateHeap())
675 { /* return an empty table just as DOS 4.0+ does */
676 DS_reg(context) = DosHeapHandle;
677 SI_reg(context) = (int)&heap->DummyDBCSLeadTable - (int)heap;
678 }
679 else
680 {
681 AX_reg(context) = 0x1; /* error */
682 SET_CFLAG(context);
683 }
684 }
685
686
687 static int INT21_GetDiskSerialNumber( CONTEXT *context )
688 {
689 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
690 int drive = DOS_GET_DRIVE( BL_reg(context) );
691
692 if (!DRIVE_IsValid(drive))
693 {
694 SetLastError( ERROR_INVALID_DRIVE );
695 return 0;
696 }
697
698 *(WORD *)dataptr = 0;
699 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
700 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
701 strncpy(dataptr + 0x11, "FAT16 ", 8);
702 return 1;
703 }
704
705
706 static int INT21_SetDiskSerialNumber( CONTEXT *context )
707 {
708 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
709 int drive = DOS_GET_DRIVE( BL_reg(context) );
710
711 if (!DRIVE_IsValid(drive))
712 {
713 SetLastError( ERROR_INVALID_DRIVE );
714 return 0;
715 }
716
717 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
718 return 1;
719 }
720
721
722 /* microsoft's programmers should be shot for using CP/M style int21
723 calls in Windows for Workgroup's winfile.exe */
724
725 static int INT21_FindFirstFCB( CONTEXT *context )
726 {
727 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
728 FINDFILE_FCB *pFCB;
729 LPCSTR root, cwd;
730 int drive;
731
732 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
733 else pFCB = (FINDFILE_FCB *)fcb;
734 drive = DOS_GET_DRIVE( pFCB->drive );
735 if (!DRIVE_IsValid( drive )) return 0;
736 root = DRIVE_GetRoot( drive );
737 cwd = DRIVE_GetUnixCwd( drive );
738 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
739 strlen(root)+strlen(cwd)+2 );
740 if (!pFCB->unixPath) return 0;
741 strcpy( pFCB->unixPath, root );
742 strcat( pFCB->unixPath, "/" );
743 strcat( pFCB->unixPath, cwd );
744 pFCB->count = 0;
745 return 1;
746 }
747
748
749 static int INT21_FindNextFCB( CONTEXT *context )
750 {
751 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context));
752 FINDFILE_FCB *pFCB;
753 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
754 WIN32_FIND_DATAA entry;
755 BYTE attr;
756 int count;
757
758 if (*fcb == 0xff) /* extended FCB ? */
759 {
760 attr = fcb[6];
761 pFCB = (FINDFILE_FCB *)(fcb + 7);
762 }
763 else
764 {
765 attr = 0;
766 pFCB = (FINDFILE_FCB *)fcb;
767 }
768
769 if (!pFCB->unixPath) return 0;
770 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
771 DOS_GET_DRIVE( pFCB->drive ), attr,
772 pFCB->count, &entry )))
773 {
774 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
775 pFCB->unixPath = NULL;
776 return 0;
777 }
778 pFCB->count += count;
779
780 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
781 *(BYTE *)pResult = 0xff;
782 (BYTE *)pResult +=6; /* leave reserved field behind */
783 *(BYTE *)pResult = entry.dwFileAttributes;
784 ((BYTE *)pResult)++;
785 }
786 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
787 ((BYTE *)pResult)++;
788 pResult->fileattr = entry.dwFileAttributes;
789 pResult->cluster = 0; /* what else? */
790 pResult->filesize = entry.nFileSizeLow;
791 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
792 FileTimeToDosDateTime( &entry.ftLastWriteTime,
793 &pResult->filedate, &pResult->filetime );
794
795 /* Convert file name to FCB format */
796
797 memset( pResult->filename, ' ', sizeof(pResult->filename) );
798 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
799 else if (!strcmp( entry.cAlternateFileName, ".." ))
800 pResult->filename[0] = pResult->filename[1] = '.';
801 else
802 {
803 char *p = strrchr( entry.cAlternateFileName, '.' );
804 if (p && p[1] && (p != entry.cAlternateFileName))
805 {
806 memcpy( pResult->filename, entry.cAlternateFileName,
807 MIN( (p - entry.cAlternateFileName), 8 ) );
808 memcpy( pResult->filename + 8, p + 1, MIN( strlen(p), 3 ) );
809 }
810 else
811 memcpy( pResult->filename, entry.cAlternateFileName,
812 MIN( strlen(entry.cAlternateFileName), 8 ) );
813 }
814 return 1;
815 }
816
817
818 static void DeleteFileFCB( CONTEXT *context )
819 {
820 FIXME(int21, "(%p): stub\n", context);
821 }
822
823 static void RenameFileFCB( CONTEXT *context )
824 {
825 FIXME(int21, "(%p): stub\n", context);
826 }
827
828
829
830 static void fLock( CONTEXT * context )
831 {
832
833 switch ( AX_reg(context) & 0xff )
834 {
835 case 0x00: /* LOCK */
836 TRACE(int21,"lock handle %d offset %ld length %ld\n",
837 BX_reg(context),
838 MAKELONG(DX_reg(context),CX_reg(context)),
839 MAKELONG(DI_reg(context),SI_reg(context))) ;
840 if (!LockFile(FILE_GetHandle(BX_reg(context)),
841 MAKELONG(DX_reg(context),CX_reg(context)), 0,
842 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
843 AX_reg(context) = GetLastError();
844 SET_CFLAG(context);
845 }
846 break;
847
848 case 0x01: /* UNLOCK */
849 TRACE(int21,"unlock handle %d offset %ld length %ld\n",
850 BX_reg(context),
851 MAKELONG(DX_reg(context),CX_reg(context)),
852 MAKELONG(DI_reg(context),SI_reg(context))) ;
853 if (!UnlockFile(FILE_GetHandle(BX_reg(context)),
854 MAKELONG(DX_reg(context),CX_reg(context)), 0,
855 MAKELONG(DI_reg(context),SI_reg(context)), 0)) {
856 AX_reg(context) = GetLastError();
857 SET_CFLAG(context);
858 }
859 return;
860 default:
861 AX_reg(context) = 0x0001;
862 SET_CFLAG(context);
863 return;
864 }
865 }
866
867 static BOOL
868 INT21_networkfunc (CONTEXT *context)
869 {
870 switch (AL_reg(context)) {
871 case 0x00: /* Get machine name. */
872 {
873 char *dst = CTX_SEG_OFF_TO_LIN (context,DS_reg(context),EDX_reg(context));
874 TRACE(int21, "getting machine name to %p\n", dst);
875 if (gethostname (dst, 15))
876 {
877 WARN(int21,"failed!\n");
878 SetLastError( ER_NoNetwork );
879 return TRUE;
880 } else {
881 int len = strlen (dst);
882 while (len < 15)
883 dst[len++] = ' ';
884 dst[15] = 0;
885 CH_reg(context) = 1; /* Valid */
886 CL_reg(context) = 1; /* NETbios number??? */
887 TRACE(int21, "returning %s\n", debugstr_an (dst, 16));
888 return FALSE;
889 }
890 }
891
892 default:
893 SetLastError( ER_NoNetwork );
894 return TRUE;
895 }
896 }
897
898 static void INT21_SetCurrentPSP(WORD psp)
899 {
900 #ifdef MZ_SUPPORTED
901 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
902 NE_MODULE *pModule = pTask ? NE_GetPtr( pTask->hModule ) : NULL;
903
904 GlobalUnlock16( GetCurrentTask() );
905 if (pModule->lpDosTask)
906 pModule->lpDosTask->psp_seg = psp;
907 else
908 #endif
909 ERR(int21, "Cannot change PSP for non-DOS task!\n");
910 }
911
912 static WORD INT21_GetCurrentPSP()
913 {
914 #ifdef MZ_SUPPORTED
915 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
916 NE_MODULE *pModule = pTask ? NE_GetPtr( pTask->hModule ) : NULL;
917
918 GlobalUnlock16( GetCurrentTask() );
919 if (pModule->lpDosTask)
920 return pModule->lpDosTask->psp_seg;
921 else
922 #endif
923 return GetCurrentPDB16();
924 }
925
926
927 SEGPTR INT21_GetListOfLists()
928 {
929 static DOS_LISTOFLISTS *LOL;
930 static SEGPTR seg_LOL;
931
932 /*
933 Output of DOS 6.22:
934
935 0133:0020 6A 13-33 01 CC 00 33 01 59 00 j.3...3.Y.
936 0133:0030 70 00 00 00 72 02 00 02-6D 00 33 01 00 00 2E 05 p...r...m.3.....
937 0133:0040 00 00 FC 04 00 00 03 08-92 21 11 E0 04 80 C6 0D .........!......
938 0133:0050 CC 0D 4E 55 4C 20 20 20-20 20 00 00 00 00 00 00 ..NUL ......
939 0133:0060 00 4B BA C1 06 14 00 00-00 03 01 00 04 70 CE FF .K...........p..
940 0133:0070 FF 00 00 00 00 00 00 00-00 01 00 00 0D 05 00 00 ................
941 0133:0080 00 FF FF 00 00 00 00 FE-00 00 F8 03 FF 9F 70 02 ..............p.
942 0133:0090 D0 44 C8 FD D4 44 C8 FD-D4 44 C8 FD D0 44 C8 FD .D...D...D...D..
943 0133:00A0 D0 44 C8 FD D0 44 .D...D
944 */
945 if (!LOL) {
946 LOL = SEGPTR_ALLOC(sizeof(DOS_LISTOFLISTS));
947
948 LOL->CX_Int21_5e01 = 0x0;
949 LOL->LRU_count_FCB_cache = 0x0;
950 LOL->LRU_count_FCB_open = 0x0;
951 LOL->OEM_func_handler = -1; /* not available */
952 LOL->INT21_offset = 0x0;
953 LOL->sharing_retry_count = sharing_retries; /* default value: 3 */
954 LOL->sharing_retry_delay = sharing_pause; /* default value: 1 */
955 LOL->ptr_disk_buf = 0x0;
956 LOL->offs_unread_CON = 0x0;
957 LOL->seg_first_MCB = 0x0;
958 LOL->ptr_first_DPB = 0x0;
959 LOL->ptr_first_SysFileTable = 0x0;
960 LOL->ptr_clock_dev_hdr = 0x0;
961 LOL->ptr_CON_dev_hdr = 0x0;
962 LOL->max_byte_per_sec = 512;
963 LOL->ptr_disk_buf_info = 0x0;
964 LOL->ptr_array_CDS = 0x0;
965 LOL->ptr_sys_FCB = 0x0;
966 LOL->nr_protect_FCB = 0x0;
967 LOL->nr_block_dev = 0x0;
968 LOL->nr_avail_drive_letters = 26; /* A - Z */
969 LOL->nr_drives_JOINed = 0x0;
970 LOL->ptr_spec_prg_names = 0x0;
971 LOL->ptr_SETVER_prg_list = 0x0; /* no SETVER list */
972 LOL->DOS_HIGH_A20_func_offs = 0x0;
973 LOL->PSP_last_exec = 0x0;
974 LOL->BUFFERS_val = 99; /* maximum: 99 */
975 LOL->BUFFERS_nr_lookahead = 8; /* maximum: 8 */
976 LOL->boot_drive = 3; /* C: */
977 LOL->flag_DWORD_moves = 0x01; /* i386+ */
978 LOL->size_extended_mem = 0xf000; /* very high value */
979 }
980 if (!seg_LOL) seg_LOL = SEGPTR_GET(LOL);
981 return seg_LOL+(WORD)&((DOS_LISTOFLISTS*)0)->ptr_first_DPB;
982 }
983
984
985 /***********************************************************************
986 * INT21_GetExtendedError
987 */
988 static void INT21_GetExtendedError( CONTEXT *context )
989 {
990 BYTE class, action, locus;
991 WORD error = GetLastError();
992
993 switch(error)
994 {
995 case ERROR_SUCCESS:
996 class = action = locus = 0;
997 break;
998 case ERROR_DIR_NOT_EMPTY:
999 class = EC_Exists;
1000 action = SA_Ignore;
1001 locus = EL_Disk;
1002 break;
1003 case ERROR_ACCESS_DENIED:
1004 class = EC_AccessDenied;
1005 action = SA_Abort;
1006 locus = EL_Disk;
1007 break;
1008 case ERROR_CANNOT_MAKE:
1009 class = EC_AccessDenied;
1010 action = SA_Abort;
1011 locus = EL_Unknown;
1012 break;
1013 case ERROR_DISK_FULL:
1014 case ERROR_HANDLE_DISK_FULL:
1015 class = EC_MediaError;
1016 action = SA_Abort;
1017 locus = EL_Disk;
1018 break;
1019 case ERROR_FILE_EXISTS:
1020 case ERROR_ALREADY_EXISTS:
1021 class = EC_Exists;
1022 action = SA_Abort;
1023 locus = EL_Disk;
1024 break;
1025 case ERROR_FILE_NOT_FOUND:
1026 class = EC_NotFound;
1027 action = SA_Abort;
1028 locus = EL_Disk;
1029 break;
1030 case ER_GeneralFailure:
1031 class = EC_SystemFailure;
1032 action = SA_Abort;
1033 locus = EL_Unknown;
1034 break;
1035 case ERROR_INVALID_DRIVE:
1036 class = EC_MediaError;
1037 action = SA_Abort;
1038 locus = EL_Disk;
1039 break;
1040 case ERROR_INVALID_HANDLE:
1041 class = EC_ProgramError;
1042 action = SA_Abort;
1043 locus = EL_Disk;
1044 break;
1045 case ERROR_LOCK_VIOLATION:
1046 class = EC_AccessDenied;
1047 action = SA_Abort;
1048 locus = EL_Disk;
1049 break;
1050 case ERROR_NO_MORE_FILES:
1051 class = EC_MediaError;
1052 action = SA_Abort;
1053 locus = EL_Disk;
1054 break;
1055 case ER_NoNetwork:
1056 class = EC_NotFound;
1057 action = SA_Abort;
1058 locus = EL_Network;
1059 break;
1060 case ERROR_NOT_ENOUGH_MEMORY:
1061 class = EC_OutOfResource;
1062 action = SA_Abort;
1063 locus = EL_Memory;
1064 break;
1065 case ERROR_PATH_NOT_FOUND:
1066 class = EC_NotFound;
1067 action = SA_Abort;
1068 locus = EL_Disk;
1069 break;
1070 case ERROR_SEEK:
1071 class = EC_NotFound;
1072 action = SA_Ignore;
1073 locus = EL_Disk;
1074 break;
1075 case ERROR_SHARING_VIOLATION:
1076 class = EC_Temporary;
1077 action = SA_Retry;
1078 locus = EL_Disk;
1079 break;
1080 case ERROR_TOO_MANY_OPEN_FILES:
1081 class = EC_ProgramError;
1082 action = SA_Abort;
1083 locus = EL_Disk;
1084 break;
1085 default:
1086 FIXME( int21, "Unknown error %d\n", error );
1087 class = EC_SystemFailure;
1088 action = SA_Abort;
1089 locus = EL_Unknown;
1090 break;
1091 }
1092 TRACE( int21, "GET EXTENDED ERROR code 0x%02x class 0x%02x action 0x%02x locus %02x\n",
1093 error, class, action, locus );
1094 AX_reg(context) = error;
1095 BH_reg(context) = class;
1096 BL_reg(context) = action;
1097 CH_reg(context) = locus;
1098 }
1099
1100 /***********************************************************************
1101 * DOS3Call (KERNEL.102)
1102 */
1103 void WINAPI DOS3Call( CONTEXT *context )
1104 {
1105 BOOL bSetDOSExtendedError = FALSE;
1106
1107
1108 TRACE(int21, "AX=%04x BX=%04x CX=%04x DX=%04x "
1109 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1110 AX_reg(context), BX_reg(context), CX_reg(context), DX_reg(context),
1111 SI_reg(context), DI_reg(context),
1112 (WORD)DS_reg(context), (WORD)ES_reg(context),
1113 EFL_reg(context) );
1114
1115
1116 if (AH_reg(context) == 0x59) /* Get extended error info */
1117 {
1118 INT21_GetExtendedError( context );
1119 return;
1120 }
1121
1122 if (AH_reg(context) == 0x0C) /* Flush buffer and read standard input */
1123 {
1124 TRACE(int21, "FLUSH BUFFER AND READ STANDARD INPUT\n");
1125 /* no flush here yet */
1126 AH_reg(context) = AL_reg(context);
1127 }
1128
1129 if (AH_reg(context)>=0x2f) {
1130 /* extended error is used by (at least) functions 0x2f to 0x62 */
1131 SetLastError(0);
1132 }
1133 RESET_CFLAG(context); /* Not sure if this is a good idea */
1134
1135 switch(AH_reg(context))
1136 {
1137 case 0x03: /* READ CHARACTER FROM STDAUX */
1138 case 0x04: /* WRITE CHARACTER TO STDAUX */
1139 case 0x05: /* WRITE CHARACTER TO PRINTER */
1140 case 0x0f: /* OPEN FILE USING FCB */
1141 case 0x10: /* CLOSE FILE USING FCB */
1142 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
1143 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
1144 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
1145 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
1146 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
1147 case 0x23: /* GET FILE SIZE FOR FCB */
1148 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
1149 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
1150 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
1151 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
1152 case 0x54: /* GET VERIFY FLAG */
1153 INT_BARF( context, 0x21 );
1154 break;
1155
1156 case 0x00: /* TERMINATE PROGRAM */
1157 TRACE(int21,"TERMINATE PROGRAM\n");
1158 ExitProcess( 0 );
1159 break;
1160
1161 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
1162 TRACE(int21,"DIRECT CHARACTER INPUT WITH ECHO\n");
1163 AL_reg(context) = CONSOLE_GetCharacter();
1164 /* FIXME: no echo */
1165 break;
1166
1167 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
1168 TRACE(int21, "Write Character to Standard Output\n");
1169 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1170 break;
1171
1172 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
1173 TRACE(int21, "Direct Console Input/Output\n");
1174 if (DL_reg(context) == 0xff) {
1175 FIXME(int21,"Direct Console Input should not block\n");
1176 AL_reg(context) = CONSOLE_GetCharacter();
1177 FL_reg(context) &= ~0x40; /* clear ZF */
1178 } else
1179 CONSOLE_Write(DL_reg(context), 0, 0, 0);
1180 break;
1181
1182 case 0x07: /* DIRECT CHARACTER INPUT WITHOUT ECHO */
1183 TRACE(int21,"DIRECT CHARACTER INPUT WITHOUT ECHO\n");
1184 AL_reg(context) = CONSOLE_GetCharacter();
1185 break;
1186
1187 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
1188 TRACE(int21,"CHARACTER INPUT WITHOUT ECHO\n");
1189 AL_reg(context) = CONSOLE_GetCharacter();
1190 break;
1191
1192 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
1193 TRACE(int21,"WRITE '$'-terminated string from %04lX:%04X to stdout\n",
1194 DS_reg(context),DX_reg(context) );
1195 {
1196 LPSTR data = CTX_SEG_OFF_TO_LIN(context,DS_reg(context),EDX_reg(context));
1197 LPSTR p = data;
1198 /* do NOT use strchr() to calculate the string length,
1199 as '\0' is valid string content, too !
1200 Maybe we should check for non-'$' strings, but DOS doesn't. */
1201 while (*p != '$') p++;
1202 _hwrite16( 1, data, (int)p - (int)data);
1203 AL_reg(context) = '$'; /* yes, '$' (0x24) gets returned in AL */
1204 }
1205 break;
1206
1207 case 0x0a: /* BUFFERED INPUT */
1208 {
1209 char *buffer = ((char *)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1210 EDX_reg(context) ));
1211 int res;
1212
1213 TRACE(int21,"BUFFERED INPUT (size=%d)\n",buffer[0]);
1214 if (buffer[1])
1215 TRACE(int21,"Handle old chars in buffer!\n");
1216 res=_lread16( 0, buffer+2,buffer[0]);
1217 buffer[1]=res;
1218 if(buffer[res+1] == '\n')
1219 buffer[res+1] = '\r';
1220 break;
1221 }
1222
1223 case 0x0b: {/* GET STDIN STATUS */
1224 char x1,x2;
1225
1226 if (CONSOLE_CheckForKeystroke(&x1,&x2))
1227 AL_reg(context) = 0xff;
1228 else
1229 AL_reg(context) = 0;
1230 break;
1231 }
1232 case 0x2e: /* SET VERIFY FLAG */
1233 TRACE(int21,"SET VERIFY FLAG ignored\n");
1234 /* we cannot change the behaviour anyway, so just ignore it */
1235 break;
1236
1237 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
1238 case 0x1d:
1239 case 0x1e:
1240 case 0x20:
1241 case 0x6b: /* NULL FUNCTION */
1242 AL_reg(context) = 0;
1243 break;
1244
1245 case 0x5c: /* "FLOCK" - RECORD LOCKING */
1246 fLock(context);
1247 break;
1248
1249 case 0x0d: /* DISK BUFFER FLUSH */
1250 TRACE(int21,"DISK BUFFER FLUSH ignored\n");
1251 RESET_CFLAG(context); /* dos 6+ only */
1252 break;
1253
1254 case 0x0e: /* SELECT DEFAULT DRIVE */
1255 TRACE(int21,"SELECT DEFAULT DRIVE %d\n", DL_reg(context));
1256 DRIVE_SetCurrentDrive( DL_reg(context) );
1257 AL_reg(context) = MAX_DOS_DRIVES;
1258 break;
1259
1260 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
1261 TRACE(int21,"FIND FIRST MATCHING FILE USING FCB %p\n",
1262 CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1263 if (!INT21_FindFirstFCB(context))
1264 {
1265 AL_reg(context) = 0xff;
1266 break;
1267 }
1268 /* else fall through */
1269
1270 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
1271 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
1272 break;
1273
1274 case 0x13: /* DELETE FILE USING FCB */
1275 DeleteFileFCB(context);
1276 break;
1277
1278 case 0x17: /* RENAME FILE USING FCB */
1279 RenameFileFCB(context);
1280 break;
1281
1282 case 0x19: /* GET CURRENT DEFAULT DRIVE */
1283 AL_reg(context) = DRIVE_GetCurrentDrive();
1284 break;
1285
1286 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
1287 {
1288 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1289 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(context),DX_reg(context));
1290 TRACE(int21, "Set DTA: %08lx\n", pTask->dta);
1291 }
1292 break;
1293
1294 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1295 DL_reg(context) = 0;
1296 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1297 break;
1298
1299 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1300 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1301 break;
1302
1303 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1304 GetDrivePB(context, DRIVE_GetCurrentDrive());
1305 break;
1306
1307 case 0x25: /* SET INTERRUPT VECTOR */
1308 INT_CtxSetHandler( context, AL_reg(context),
1309 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1310 DX_reg(context)));
1311 break;
1312
1313 case 0x29: /* PARSE FILENAME INTO FCB */
1314 INT21_ParseFileNameIntoFCB(context);
1315 break;
1316
1317 case 0x2a: /* GET SYSTEM DATE */
1318 INT21_GetSystemDate(context);
1319 break;
1320
1321 case 0x2b: /* SET SYSTEM DATE */
1322 FIXME(int21, "SetSystemDate(%02d/%02d/%04d): not allowed\n",
1323 DL_reg(context), DH_reg(context), CX_reg(context) );
1324 AL_reg(context) = 0; /* Let's pretend we succeeded */
1325 break;
1326
1327 case 0x2c: /* GET SYSTEM TIME */
1328 INT21_GetSystemTime(context);
1329 break;
1330
1331 case 0x2d: /* SET SYSTEM TIME */
1332 FIXME(int21, "SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1333 CH_reg(context), CL_reg(context),
1334 DH_reg(context), DL_reg(context) );
1335 AL_reg(context) = 0; /* Let's pretend we succeeded */
1336 break;
1337
1338 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1339 TRACE(int21,"GET DISK TRANSFER AREA ADDRESS\n");
1340 {
1341 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1342 ES_reg(context) = SELECTOROF( pTask->dta );
1343 BX_reg(context) = OFFSETOF( pTask->dta );
1344 }
1345 break;
1346
1347 case 0x30: /* GET DOS VERSION */
1348 TRACE(int21,"GET DOS VERSION %s requested\n",
1349 (AL_reg(context) == 0x00)?"OEM number":"version flag");
1350 AX_reg(context) = (HIWORD(GetVersion16()) >> 8) |
1351 (HIWORD(GetVersion16()) << 8);
1352 #if 0
1353 AH_reg(context) = 0x7;
1354 AL_reg(context) = 0xA;
1355 #endif
1356
1357 BX_reg(context) = 0x00FF; /* 0x123456 is Wine's serial # */
1358 CX_reg(context) = 0x0000;
1359 break;
1360
1361 case 0x31: /* TERMINATE AND STAY RESIDENT */
1362 FIXME(int21,"TERMINATE AND STAY RESIDENT stub\n");
1363 break;
1364
1365 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1366 TRACE(int21,"GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
1367 INT21_DriveName( DL_reg(context)));
1368 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1369 break;
1370
1371 case 0x33: /* MULTIPLEXED */
1372 switch (AL_reg(context))
1373 {
1374 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1375 TRACE(int21,"GET CURRENT EXTENDED BREAK STATE\n");
1376 DL_reg(context) = DOSCONF_config.brk_flag;
1377 break;
1378
1379 case 0x01: /* SET EXTENDED BREAK STATE */
1380 TRACE(int21,"SET CURRENT EXTENDED BREAK STATE\n");
1381 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
1382 break;
1383
1384 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1385 TRACE(int21,"GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
1386 /* ugly coding in order to stay reentrant */
1387 if (DL_reg(context))
1388 {
1389 DL_reg(context) = DOSCONF_config.brk_flag;
1390 DOSCONF_config.brk_flag = 1;
1391 }
1392 else
1393 {
1394 DL_reg(context) = DOSCONF_config.brk_flag;
1395 DOSCONF_config.brk_flag = 0;
1396 }
1397 break;
1398
1399 case 0x05: /* GET BOOT DRIVE */
1400 TRACE(int21,"GET BOOT DRIVE\n");
1401 DL_reg(context) = 3;
1402 /* c: is Wine's bootdrive (a: is 1)*/
1403 break;
1404
1405 case 0x06: /* GET TRUE VERSION NUMBER */
1406 TRACE(int21,"GET TRUE VERSION NUMBER\n");
1407 BX_reg(context) = (HIWORD(GetVersion16() >> 8)) |
1408 (HIWORD(GetVersion16() << 8));
1409 DX_reg(context) = 0x00;
1410 break;
1411
1412 default:
1413 INT_BARF( context, 0x21 );
1414 break;
1415 }
1416 break;
1417
1418 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1419 TRACE(int21,"GET ADDRESS OF INDOS FLAG\n");
1420 if (!heap) INT21_CreateHeap();
1421 ES_reg(context) = DosHeapHandle;
1422 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1423 break;
1424
1425 case 0x35: /* GET INTERRUPT VECTOR */
1426 TRACE(int21,"GET INTERRUPT VECTOR 0x%02x\n",AL_reg(context));
1427 {
1428 FARPROC16 addr = INT_CtxGetHandler( context, AL_reg(context) );
1429 ES_reg(context) = SELECTOROF(addr);
1430 BX_reg(context) = OFFSETOF(addr);
1431 }
1432 break;
1433
1434 case 0x36: /* GET FREE DISK SPACE */
1435 TRACE(int21,"GET FREE DISK SPACE FOR DRIVE %s\n",
1436 INT21_DriveName( DL_reg(context)));
1437 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1438 break;
1439
1440 case 0x37:
1441 {
1442 unsigned char switchchar='/';
1443 switch (AL_reg(context))
1444 {
1445 case 0x00: /* "SWITCHAR" - GET SWITCH CHARACTER */
1446 TRACE(int21,"SWITCHAR - GET SWITCH CHARACTER\n");
1447 AL_reg(context) = 0x00; /* success*/
1448 DL_reg(context) = switchchar;
1449 break;
1450 case 0x01: /*"SWITCHAR" - SET SWITCH CHARACTER*/
1451 TRACE(int21,"SWITCHAR - SET SWITCH CHARACTER\n");
1452 switchchar = DL_reg(context);
1453 AL_reg(context) = 0x00; /* success*/
1454 break;
1455 default: /*"AVAILDEV" - SPECIFY \DEV\ PREFIX USE*/
1456 INT_BARF( context, 0x21 );
1457 break;
1458 }
1459 break;
1460 }
1461
1462 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1463 TRACE(int21,"GET COUNTRY-SPECIFIC INFORMATION for country 0x%02x\n",
1464 AL_reg(context));
1465 AX_reg(context) = 0x02; /* no country support available */
1466 SET_CFLAG(context);
1467 break;
1468
1469 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1470 TRACE(int21,"MKDIR %s\n",
1471 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1472 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1473 EDX_reg(context) ), NULL));
1474 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1475 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1476 * denied), while CreateDirectory return several ones. remap some of
1477 * them. -Marcus
1478 */
1479 if (bSetDOSExtendedError) {
1480 switch (GetLastError()) {
1481 case ERROR_ALREADY_EXISTS:
1482 case ERROR_FILENAME_EXCED_RANGE:
1483 case ERROR_DISK_FULL:
1484 SetLastError(ERROR_ACCESS_DENIED);
1485 break;
1486 default: break;
1487 }
1488 }
1489 break;
1490
1491 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1492 TRACE(int21,"RMDIR %s\n",
1493 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1494 bSetDOSExtendedError = (!RemoveDirectory16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1495 EDX_reg(context) )));
1496 break;
1497
1498 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1499 TRACE(int21,"CHDIR %s\n",
1500 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1501 bSetDOSExtendedError = !INT21_ChangeDir(context);
1502 break;
1503
1504 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1505 TRACE(int21,"CREAT flag 0x%02x %s\n",CX_reg(context),
1506 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1507 AX_reg(context) = _lcreat16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1508 EDX_reg(context) ), CX_reg(context) );
1509 bSetDOSExtendedError = (AX_reg(context) == (WORD)HFILE_ERROR16);
1510 break;
1511
1512 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1513 TRACE(int21,"OPEN mode 0x%02x %s\n",AL_reg(context),
1514 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1515 OpenExistingFile(context);
1516 break;
1517
1518 case 0x3e: /* "CLOSE" - CLOSE FILE */
1519 TRACE(int21,"CLOSE handle %d\n",BX_reg(context));
1520 bSetDOSExtendedError = ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0);
1521 break;
1522
1523 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1524 TRACE(int21,"READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1525 DS_reg(context),DX_reg(context),CX_reg(context) );
1526 {
1527 LONG result;
1528 if (ISV86(context))
1529 result = _hread16( BX_reg(context),
1530 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1531 EDX_reg(context) ),
1532 CX_reg(context) );
1533 else
1534 result = WIN16_hread( BX_reg(context),
1535 PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1536 EDX_reg(context) ),
1537 CX_reg(context) );
1538 if (result == -1) bSetDOSExtendedError = TRUE;
1539 else AX_reg(context) = (WORD)result;
1540 }
1541 break;
1542
1543 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1544 TRACE(int21,"WRITE from %04lX:%04X to handle %d for %d byte\n",
1545 DS_reg(context),DX_reg(context),BX_reg(context),CX_reg(context) );
1546 {
1547 LONG result = _hwrite16( BX_reg(context),
1548 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1549 EDX_reg(context) ),
1550 CX_reg(context) );
1551 if (result == -1) bSetDOSExtendedError = TRUE;
1552 else AX_reg(context) = (WORD)result;
1553 }
1554 break;
1555
1556 case 0x41: /* "UNLINK" - DELETE FILE */
1557 TRACE(int21,"UNLINK%s\n",
1558 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1559 bSetDOSExtendedError = (!DeleteFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1560 EDX_reg(context) )));
1561 break;
1562
1563 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1564 TRACE(int21,"LSEEK handle %d offset %ld from %s\n",
1565 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1566 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1567 "current file position":"end of file");
1568 {
1569 LONG status = _llseek16( BX_reg(context),
1570 MAKELONG(DX_reg(context),CX_reg(context)),
1571 AL_reg(context) );
1572 if (status == -1) bSetDOSExtendedError = TRUE;
1573 else
1574 {
1575 AX_reg(context) = LOWORD(status);
1576 DX_reg(context) = HIWORD(status);
1577 }
1578 }
1579 break;
1580
1581 case 0x43: /* FILE ATTRIBUTES */
1582 switch (AL_reg(context))
1583 {
1584 case 0x00:
1585 TRACE(int21,"GET FILE ATTRIBUTES for %s\n",
1586 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1587 AX_reg(context) = (WORD)GetFileAttributesA(
1588 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1589 EDX_reg(context)));
1590 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1591 else CX_reg(context) = AX_reg(context);
1592 break;
1593
1594 case 0x01:
1595 TRACE(int21,"SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1596 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1597 bSetDOSExtendedError =
1598 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1599 EDX_reg(context)),
1600 CX_reg(context) ));
1601 break;
1602 case 0x02:
1603 TRACE(int21,"GET COMPRESSED FILE SIZE for %s stub\n",
1604 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1605 }
1606 break;
1607
1608 case 0x44: /* IOCTL */
1609 switch (AL_reg(context))
1610 {
1611 case 0x00:
1612 ioctlGetDeviceInfo(context);
1613 break;
1614
1615 case 0x01:
1616 break;
1617 case 0x02:{
1618 const DOS_DEVICE *dev;
1619 if ((dev = DOSFS_GetDeviceByHandle( FILE_GetHandle(BX_reg(context)) )) &&
1620 !strcasecmp( dev->name, "SCSIMGR$" ))
1621 {
1622 ASPI_DOS_HandleInt(context);
1623 }
1624 break;
1625 }
1626 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1627 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context));*/
1628 int drive = DOS_GET_DRIVE(BL_reg(context));
1629
1630 FIXME(int21,"program tried to write to block device control channel of drive %d:\n",drive);
1631 /* for (i=0;i<CX_reg(context);i++)
1632 fprintf(stdnimp,"%02x ",dataptr[i]);
1633 fprintf(stdnimp,"\n");*/
1634 AX_reg(context)=CX_reg(context);
1635 break;
1636 }
1637 case 0x08: /* Check if drive is removable. */
1638 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1639 INT21_DriveName( BL_reg(context)));
1640 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1641 {
1642 case DRIVE_CANNOTDETERMINE:
1643 SetLastError( ERROR_INVALID_DRIVE );
1644 AX_reg(context) = ERROR_INVALID_DRIVE;
1645 SET_CFLAG(context);
1646 break;
1647 case DRIVE_REMOVABLE:
1648 AX_reg(context) = 0; /* removable */
1649 break;
1650 default:
1651 AX_reg(context) = 1; /* not removable */
1652 break;
1653 }
1654 break;
1655
1656 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1657 TRACE(int21,"IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1658 INT21_DriveName( BL_reg(context)));
1659 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1660 {
1661 case DRIVE_CANNOTDETERMINE:
1662 SetLastError( ERROR_INVALID_DRIVE );
1663 AX_reg(context) = ERROR_INVALID_DRIVE;
1664 SET_CFLAG(context);
1665 break;
1666 case DRIVE_REMOTE:
1667 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1668 break;
1669 default:
1670 DX_reg(context) = 0; /* FIXME: use driver attr here */
1671 break;
1672 }
1673 break;
1674
1675 case 0x0a: /* check if handle (BX) is remote */
1676 TRACE(int21,"IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1677 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1678 * not set on close
1679 */
1680 DX_reg(context) = 0;
1681 break;
1682
1683 case 0x0b: /* SET SHARING RETRY COUNT */
1684 TRACE(int21,"IOCTL - SET SHARING RETRY COUNT pause %d retries %d\n",
1685 CX_reg(context), DX_reg(context));
1686 if (!CX_reg(context))
1687 {
1688 AX_reg(context) = 1;
1689 SET_CFLAG(context);
1690 break;
1691 }
1692 sharing_pause = CX_reg(context);
1693 if (!DX_reg(context))
1694 sharing_retries = DX_reg(context);
1695 RESET_CFLAG(context);
1696 break;
1697
1698 case 0x0d:
1699 TRACE(int21,"IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1700 INT21_DriveName( BL_reg(context)));
1701 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1702 break;
1703
1704 case 0x0e: /* get logical drive mapping */
1705 TRACE(int21,"IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1706 INT21_DriveName( BL_reg(context)));
1707 AL_reg(context) = 0; /* drive has no mapping - FIXME: may be wrong*/
1708 break;
1709
1710 case 0x0F: /* Set logical drive mapping */
1711 {
1712 int drive;
1713 TRACE(int21,"IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1714 INT21_DriveName( BL_reg(context)));
1715 drive = DOS_GET_DRIVE ( BL_reg(context) );
1716 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1717 {
1718 SET_CFLAG(context);
1719 AX_reg(context) = 0x000F; /* invalid drive */
1720 }
1721 break;
1722 }
1723
1724 case 0xe0: /* Sun PC-NFS API */
1725 /* not installed */
1726 break;
1727
1728 default:
1729 INT_BARF( context, 0x21 );
1730 break;
1731 }
1732 break;
1733
1734 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1735 {
1736 HANDLE handle;
1737 TRACE(int21,"DUP - DUPLICATE FILE HANDLE %d\n",BX_reg(context));
1738 if ((bSetDOSExtendedError = !DuplicateHandle( GetCurrentProcess(),
1739 FILE_GetHandle(BX_reg(context)),
1740 GetCurrentProcess(), &handle,
1741 0, TRUE, DUPLICATE_SAME_ACCESS )))
1742 AX_reg(context) = HFILE_ERROR16;
1743 else
1744 AX_reg(context) = FILE_AllocDosHandle(handle);
1745 break;
1746 }
1747
1748 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1749 TRACE(int21,"FORCEDUP - FORCE DUPLICATE FILE HANDLE %d to %d\n",
1750 BX_reg(context),CX_reg(context));
1751 bSetDOSExtendedError = (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR16);
1752 break;
1753
1754 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1755 TRACE(int21,"CWD - GET CURRENT DIRECTORY for drive %s\n",
1756 INT21_DriveName( DL_reg(context)));
1757 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1758 break;
1759
1760 case 0x48: /* ALLOCATE MEMORY */
1761 TRACE(int21,"ALLOCATE MEMORY for %d paragraphs\n", BX_reg(context));
1762 {
1763 LPVOID *mem;
1764 if (ISV86(context))
1765 {
1766 mem= DOSMEM_GetBlock(0,(DWORD)BX_reg(context)<<4,NULL);
1767 if (mem)
1768 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1769 }
1770 else
1771 {
1772 mem = (LPVOID)GlobalDOSAlloc16(BX_reg(context)<<4);
1773 if (mem)
1774 AX_reg(context) = (DWORD)mem&0xffff;
1775 }
1776 if (!mem)
1777 {
1778 SET_CFLAG(context);
1779 AX_reg(context) = 0x0008; /* insufficient memory */
1780 BX_reg(context) = DOSMEM_Available(0)>>4;
1781 }
1782 }
1783 break;
1784
1785 case 0x49: /* FREE MEMORY */
1786 TRACE(int21,"FREE MEMORY segment %04lX\n", ES_reg(context));
1787 {
1788 BOOL ret;
1789 if (ISV86(context))
1790 ret= DOSMEM_FreeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4));
1791 else
1792 {
1793 ret = !GlobalDOSFree16(ES_reg(context));
1794 /* If we don't reset ES_reg, we will fail in the relay code */
1795 ES_reg(context)=ret;
1796 }
1797 if (!ret)
1798 {
1799 TRACE(int21,"FREE MEMORY failed\n");
1800 SET_CFLAG(context);
1801 AX_reg(context) = 0x0009; /* memory block address invalid */
1802 }
1803 }
1804 break;
1805
1806 case 0x4a: /* RESIZE MEMORY BLOCK */
1807 TRACE(int21,"RESIZE MEMORY segment %04lX to %d paragraphs\n", ES_reg(context), BX_reg(context));
1808 if (!ISV86(context))
1809 FIXME(int21,"RESIZE MEMORY probably insufficent implementation. Expect crash soon\n");
1810 {
1811 LPVOID *mem = DOSMEM_ResizeBlock(0,DOSMEM_MapDosToLinear(ES_reg(context)<<4),
1812 BX_reg(context)<<4,NULL);
1813 if (mem)
1814 AX_reg(context) = DOSMEM_MapLinearToDos(mem)>>4;
1815 else {
1816 SET_CFLAG(context);
1817 AX_reg(context) = 0x0008; /* insufficient memory */
1818 BX_reg(context) = DOSMEM_Available(0)>>4; /* not quite right */
1819 }
1820 }
1821 break;
1822
1823 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1824 TRACE(int21,"EXEC %s\n",
1825 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context) ));
1826 AX_reg(context) = WinExec16( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
1827 EDX_reg(context) ),
1828 SW_NORMAL );
1829 if (AX_reg(context) < 32) SET_CFLAG(context);
1830 break;
1831
1832 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1833 TRACE(int21,"EXIT with return code %d\n",AL_reg(context));
1834 ExitProcess( AL_reg(context) );
1835 break;
1836
1837 case 0x4d: /* GET RETURN CODE */
1838 TRACE(int21,"GET RETURN CODE (ERRORLEVEL)\n");
1839 AX_reg(context) = 0; /* normal exit */
1840 break;
1841
1842 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1843 TRACE(int21,"FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1844 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1845 if (!INT21_FindFirst(context)) break;
1846 /* fall through */
1847
1848 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1849 TRACE(int21,"FINDNEXT\n");
1850 if (!INT21_FindNext(context))
1851 {
1852 SetLastError( ERROR_NO_MORE_FILES );
1853 AX_reg(context) = ERROR_NO_MORE_FILES;
1854 SET_CFLAG(context);
1855 }
1856 else AX_reg(context) = 0; /* OK */
1857 break;
1858 case 0x50: /* SET CURRENT PROCESS ID (SET PSP ADDRESS) */
1859 TRACE(int21, "SET CURRENT PROCESS ID (SET PSP ADDRESS)\n");
1860 INT21_SetCurrentPSP(BX_reg(context));
1861 break;
1862 case 0x51: /* GET PSP ADDRESS */
1863 TRACE(int21,"GET CURRENT PROCESS ID (GET PSP ADDRESS)\n");
1864 /* FIXME: should we return the original DOS PSP upon */
1865 /* Windows startup ? */
1866 BX_reg(context) = INT21_GetCurrentPSP();
1867 break;
1868 case 0x62: /* GET PSP ADDRESS */
1869 TRACE(int21,"GET CURRENT PSP ADDRESS\n");
1870 /* FIXME: should we return the original DOS PSP upon */
1871 /* Windows startup ? */
1872 BX_reg(context) = INT21_GetCurrentPSP();
1873 break;
1874
1875 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1876 TRACE(int21,"SYSVARS - GET LIST OF LISTS\n");
1877 {
1878 SEGPTR lol;
1879 lol = INT21_GetListOfLists();
1880 ES_reg(context) = HIWORD(lol);
1881 BX_reg(context) = LOWORD(lol);
1882 }
1883 break;
1884
1885 case 0x56: /* "RENAME" - RENAME FILE */
1886 TRACE(int21,"RENAME %s to %s\n",
1887 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1888 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context)));
1889 bSetDOSExtendedError =
1890 (!MoveFileA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
1891 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context))));
1892 break;
1893
1894 case 0x57: /* FILE DATE AND TIME */
1895 switch (AL_reg(context))
1896 {
1897 case 0x00: /* Get */
1898 {
1899 FILETIME filetime;
1900 TRACE(int21,"GET FILE DATE AND TIME for handle %d\n",
1901 BX_reg(context));
1902 if (!GetFileTime( FILE_GetHandle(BX_reg(context)), NULL, NULL, &filetime ))
1903 bSetDOSExtendedError = TRUE;
1904 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1905 &CX_reg(context) );
1906 }
1907 break;
1908
1909 case 0x01: /* Set */
1910 {
1911 FILETIME filetime;
1912 TRACE(int21,"SET FILE DATE AND TIME for handle %d\n",
1913 BX_reg(context));
1914 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1915 &filetime );
1916 bSetDOSExtendedError =
1917 (!SetFileTime( FILE_GetHandle(BX_reg(context)),
1918 NULL, NULL, &filetime ));
1919 }
1920 break;
1921 }
1922 break;
1923
1924 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1925 TRACE(int21,"GET OR SET MEMORY/UMB ALLOCATION STRATEGY subfunction %d\n",
1926 AL_reg(context));
1927 switch (AL_reg(context))
1928 {
1929 case 0x00:
1930 AX_reg(context) = 1;
1931 break;
1932 case 0x02:
1933 AX_reg(context) = 0;
1934 break;
1935 case 0x01:
1936 case 0x03:
1937 break;
1938 }
1939 RESET_CFLAG(context);
1940 break;
1941
1942 case 0x5a: /* CREATE TEMPORARY FILE */
1943 TRACE(int21,"CREATE TEMPORARY FILE\n");
1944 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1945 break;
1946
1947 case 0x5b: /* CREATE NEW FILE */
1948 TRACE(int21,"CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1949 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
1950 bSetDOSExtendedError = ((AX_reg(context) =
1951 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)), 0 ))
1952 == (WORD)HFILE_ERROR16);
1953 break;
1954
1955 case 0x5d: /* NETWORK */
1956 FIXME(int21,"Function 0x%04x not implemented.\n", AX_reg (context));
1957 /* Fix the following while you're at it. */
1958 SetLastError( ER_NoNetwork );
1959 bSetDOSExtendedError = TRUE;
1960 break;
1961
1962 case 0x5e:
1963 bSetDOSExtendedError = INT21_networkfunc (context);
1964 break;
1965
1966 case 0x5f: /* NETWORK */
1967 switch (AL_reg(context))
1968 {
1969 case 0x07: /* ENABLE DRIVE */
1970 TRACE(int21,"ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1971 if (!DRIVE_Enable( DL_reg(context) ))
1972 {
1973 SetLastError( ERROR_INVALID_DRIVE );
1974 bSetDOSExtendedError = TRUE;
1975 }
1976 break;
1977
1978 case 0x08: /* DISABLE DRIVE */
1979 TRACE(int21,"DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1980 if (!DRIVE_Disable( DL_reg(context) ))
1981 {
1982 SetLastError( ERROR_INVALID_DRIVE );
1983 bSetDOSExtendedError = TRUE;
1984 }
1985 break;
1986
1987 default:
1988 /* network software not installed */
1989 TRACE(int21,"NETWORK function AX=%04x not implemented\n",AX_reg(context));
1990 SetLastError( ER_NoNetwork );
1991 bSetDOSExtendedError = TRUE;
1992 break;
1993 }
1994 break;
1995
1996 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1997 TRACE(int21,"TRUENAME %s\n",
1998 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),ESI_reg(context)));
1999 {
2000 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2001 ESI_reg(context)), 128,
2002 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2003 EDI_reg(context)),NULL))
2004 bSetDOSExtendedError = TRUE;
2005 else AX_reg(context) = 0;
2006 }
2007 break;
2008
2009 case 0x61: /* UNUSED */
2010 case 0x63: /* misc. language support */
2011 switch (AL_reg(context)) {
2012 case 0x00: /* GET DOUBLE BYTE CHARACTER SET LEAD-BYTE TABLE */
2013 INT21_GetDBCSLeadTable(context);
2014 break;
2015 }
2016 break;
2017 case 0x64: /* OS/2 DOS BOX */
2018 INT_BARF( context, 0x21 );
2019 SET_CFLAG(context);
2020 break;
2021
2022 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
2023 extern WORD WINE_LanguageId;
2024 BYTE *dataptr=CTX_SEG_OFF_TO_LIN(context, ES_reg(context),EDI_reg(context));
2025 TRACE(int21,"GET EXTENDED COUNTRY INFORMATION code page %d country %d\n",
2026 BX_reg(context), DX_reg(context));
2027 switch (AL_reg(context)) {
2028 case 0x01:
2029 TRACE(int21,"\tget general internationalization info\n");
2030 dataptr[0] = 0x1;
2031 *(WORD*)(dataptr+1) = 41;
2032 *(WORD*)(dataptr+3) = WINE_LanguageId;
2033 *(WORD*)(dataptr+5) = CodePage;
2034 *(DWORD*)(dataptr+0x19) = 0; /* FIXME: ptr to case map routine */
2035 break;
2036 case 0x06:
2037 TRACE(int21,"\tget pointer to collating sequence table\n");
2038 dataptr[0] = 0x06;
2039 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
2040 CX_reg(context) = 258;/*FIXME: size of table?*/
2041 break;
2042 default:
2043 TRACE(int21,"\tunimplemented function %d\n",AL_reg(context));
2044 INT_BARF( context, 0x21 );
2045 SET_CFLAG(context);
2046 break;
2047 }
2048 break;
2049 }
2050 case 0x66: /* GLOBAL CODE PAGE TABLE */
2051 switch (AL_reg(context))
2052 {
2053 case 0x01:
2054 TRACE(int21,"GET GLOBAL CODE PAGE TABLE\n");
2055 DX_reg(context) = BX_reg(context) = CodePage;
2056 RESET_CFLAG(context);
2057 break;
2058 case 0x02:
2059 TRACE(int21,"SET GLOBAL CODE PAGE TABLE active page %d system page %d\n",
2060 BX_reg(context),DX_reg(context));
2061 CodePage = BX_reg(context);
2062 RESET_CFLAG(context);
2063 break;
2064 }
2065 break;
2066
2067 case 0x67: /* SET HANDLE COUNT */
2068 TRACE(int21,"SET HANDLE COUNT to %d\n",BX_reg(context) );
2069 SetHandleCount16( BX_reg(context) );
2070 if (GetLastError()) bSetDOSExtendedError = TRUE;
2071 break;
2072
2073 case 0x68: /* "FFLUSH" - COMMIT FILE */
2074 case 0x6a: /* COMMIT FILE */
2075 TRACE(int21,"FFLUSH/COMMIT handle %d\n",BX_reg(context));
2076 bSetDOSExtendedError = (!FlushFileBuffers( FILE_GetHandle(BX_reg(context)) ));
2077 break;
2078
2079 case 0x69: /* DISK SERIAL NUMBER */
2080 switch (AL_reg(context))
2081 {
2082 case 0x00:
2083 TRACE(int21,"GET DISK SERIAL NUMBER for drive %s\n",
2084 INT21_DriveName(BL_reg(context)));
2085 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2086 else AX_reg(context) = 0;
2087 break;
2088
2089 case 0x01:
2090 TRACE(int21,"SET DISK SERIAL NUMBER for drive %s\n",
2091 INT21_DriveName(BL_reg(context)));
2092 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
2093 else AX_reg(context) = 1;
2094 break;
2095 }
2096 break;
2097
2098 case 0x6C: /* Extended Open/Create*/
2099 TRACE(int21,"EXTENDED OPEN/CREATE %s\n",
2100 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDI_reg(context)));
2101 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2102 break;
2103
2104 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
2105 if ((GetVersion()&0xC0000004)!=0xC0000004) {
2106 /* not supported on anything but Win95 */
2107 TRACE(int21,"LONG FILENAME functions supported only by win95\n");
2108 SET_CFLAG(context);
2109 AL_reg(context) = 0;
2110 } else
2111 switch(AL_reg(context))
2112 {
2113 case 0x39: /* Create directory */
2114 TRACE(int21,"LONG FILENAME - MAKE DIRECTORY %s\n",
2115 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2116 bSetDOSExtendedError = (!CreateDirectoryA(
2117 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2118 EDX_reg(context) ), NULL));
2119 break;
2120 case 0x3a: /* Remove directory */
2121 TRACE(int21,"LONG FILENAME - REMOVE DIRECTORY %s\n",
2122 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2123 bSetDOSExtendedError = (!RemoveDirectoryA(
2124 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2125 EDX_reg(context) )));
2126 break;
2127 case 0x43: /* Get/Set file attributes */
2128 TRACE(int21,"LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
2129 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2130 switch (BL_reg(context))
2131 {
2132 case 0x00: /* Get file attributes */
2133 TRACE(int21,"\tretrieve attributes\n");
2134 CX_reg(context) = (WORD)GetFileAttributesA(
2135 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2136 EDX_reg(context)));
2137 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
2138 break;
2139 case 0x01:
2140 TRACE(int21,"\tset attributes 0x%04x\n",CX_reg(context));
2141 bSetDOSExtendedError = (!SetFileAttributesA(
2142 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2143 EDX_reg(context)),
2144 CX_reg(context) ) );
2145 break;
2146 default:
2147 FIXME(int21, "Unimplemented long file name function:\n");
2148 INT_BARF( context, 0x21 );
2149 SET_CFLAG(context);
2150 AL_reg(context) = 0;
2151 break;
2152 }
2153 break;
2154 case 0x47: /* Get current directory */
2155 TRACE(int21," LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
2156 INT21_DriveName(DL_reg(context)));
2157 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
2158 break;
2159
2160 case 0x4e: /* Find first file */
2161 TRACE(int21," LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
2162 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2163 /* FIXME: use attributes in CX */
2164 if ((AX_reg(context) = FindFirstFile16(
2165 CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)),
2166 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2167 EDI_reg(context))))
2168 == INVALID_HANDLE_VALUE16)
2169 bSetDOSExtendedError = TRUE;
2170 break;
2171 case 0x4f: /* Find next file */
2172 TRACE(int21,"LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
2173 BX_reg(context));
2174 if (!FindNextFile16( BX_reg(context),
2175 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2176 EDI_reg(context))))
2177 bSetDOSExtendedError = TRUE;
2178 break;
2179 case 0xa1: /* Find close */
2180 TRACE(int21,"LONG FILENAME - FINDCLOSE for handle %d\n",
2181 BX_reg(context));
2182 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
2183 break;
2184 case 0xa0:
2185 TRACE(int21,"LONG FILENAME - GET VOLUME INFORMATION for drive %s stub\n",
2186 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context),EDX_reg(context)));
2187 break;
2188 case 0x60:
2189 switch(CL_reg(context))
2190 {
2191 case 0x01: /*Get short filename or path */
2192 if (!GetShortPathNameA
2193 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2194 ESI_reg(context)),
2195 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2196 EDI_reg(context)), 67))
2197 bSetDOSExtendedError = TRUE;
2198 else AX_reg(context) = 0;
2199 break;
2200 case 0x02: /*Get canonical long filename or path */
2201 if (!GetFullPathNameA
2202 ( CTX_SEG_OFF_TO_LIN(context, DS_reg(context),
2203 ESI_reg(context)), 128,
2204 CTX_SEG_OFF_TO_LIN(context, ES_reg(context),
2205 EDI_reg(context)),NULL))
2206 bSetDOSExtendedError = TRUE;
2207 else AX_reg(context) = 0;
2208 break;
2209 default:
2210 FIXME(int21, "Unimplemented long file name function:\n");
2211 INT_BARF( context, 0x21 );
2212 SET_CFLAG(context);
2213 AL_reg(context) = 0;
2214 break;
2215 }
2216 break;
2217 case 0x6c: /* Create or open file */
2218 TRACE(int21,"LONG FILENAME - CREATE OR OPEN FILE %s\n",
2219 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), ESI_reg(context)));
2220 /* translate Dos 7 action to Dos 6 action */
2221 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
2222 break;
2223
2224 case 0x3b: /* Change directory */
2225 TRACE(int21,"LONG FILENAME - CHANGE DIRECTORY %s\n",
2226 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2227 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
2228 DS_reg(context),
2229 EDX_reg(context)
2230 ))
2231 ) {
2232 SET_CFLAG(context);
2233 AL_reg(context) = GetLastError();
2234 }
2235 break;
2236 case 0x41: /* Delete file */
2237 TRACE(int21,"LONG FILENAME - DELETE FILE %s\n",
2238 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)));
2239 if (!DeleteFileA(CTX_SEG_OFF_TO_LIN(context,
2240 DS_reg(context),
2241 EDX_reg(context))
2242 )) {
2243 SET_CFLAG(context);
2244 AL_reg(context) = GetLastError();
2245 }
2246 break;
2247 case 0x56: /* Move (rename) file */
2248 TRACE(int21,"LONG FILENAME - RENAME FILE %s to %s stub\n",
2249 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, DS_reg(context), EDX_reg(context)),
2250 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, ES_reg(context), EDI_reg(context)));
2251 default:
2252 FIXME(int21, "Unimplemented long file name function:\n");
2253 INT_BARF( context, 0x21 );
2254 SET_CFLAG(context);
2255 AL_reg(context) = 0;
2256 break;
2257 }
2258 break;
2259
2260 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
2261 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
2262 case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */
2263 TRACE(int21,"windows95 function AX %04x\n",
2264 AX_reg(context));
2265 WARN(int21, " returning unimplemented\n");
2266 SET_CFLAG(context);
2267 AL_reg(context) = 0;
2268 break;
2269
2270 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
2271 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
2272 break;
2273
2274 default:
2275 INT_BARF( context, 0x21 );
2276 break;
2277
2278 } /* END OF SWITCH */
2279
2280 if( bSetDOSExtendedError ) /* set general error condition */
2281 {
2282 AX_reg(context) = GetLastError();
2283 SET_CFLAG(context);
2284 }
2285
2286 if ((EFL_reg(context) & 0x0001))
2287 TRACE(int21, "failed, error 0x%04lx\n", GetLastError() );
2288
2289 TRACE(int21, "returning: AX=%04x BX=%04x CX=%04x DX=%04x "
2290 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
2291 AX_reg(context), BX_reg(context), CX_reg(context),
2292 DX_reg(context), SI_reg(context), DI_reg(context),
2293 (WORD)DS_reg(context), (WORD)ES_reg(context),
2294 EFL_reg(context));
2295 }
2296
2297 FARPROC16 WINAPI GetSetKernelDOSProc16(FARPROC16 DosProc)
2298 {
2299 FIXME(int21, "(DosProc=0x%08x): stub\n", (UINT)DosProc);
2300 return NULL;
2301 }
2302
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