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Move real mode interrupt emulation code to file interrupts.c.
[wine/testsucceed.git] / msdos / int21.c
blobba44a7bfb93617c4cacfae4c537d1ac31f0353ed
1 /*
2 * DOS interrupt 21h handler
3 *
4 * Copyright 1993, 1994 Erik Bos
5 * Copyright 1996 Alexandre Julliard
6 * Copyright 1997 Andreas Mohr
7 * Copyright 1998 Uwe Bonnes
8 * Copyright 1998, 1999 Ove Kaaven
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 */
24
25 #include "config.h"
26 #include "wine/port.h"
27
28 #include <time.h>
29 #include <fcntl.h>
30 #include <stdlib.h>
31 #include <stdio.h>
32 #ifdef HAVE_SYS_FILE_H
33 # include <sys/file.h>
34 #endif
35 #include <string.h>
36 #ifdef HAVE_SYS_TIME_H
37 # include <sys/time.h>
38 #endif
39 #include <sys/types.h>
40 #ifdef HAVE_UNISTD_H
41 # include <unistd.h>
42 #endif
43 #ifdef HAVE_UTIME_H
44 # include <utime.h>
45 #endif
46 #include <ctype.h>
47 #include "windef.h"
48 #include "winbase.h"
49 #include "winternl.h"
50 #include "wingdi.h"
51 #include "winuser.h" /* SW_NORMAL */
52 #include "wine/winbase16.h"
53 #include "winerror.h"
54 #include "drive.h"
55 #include "file.h"
56 #include "callback.h"
57 #include "msdos.h"
58 #include "miscemu.h"
59 #include "task.h"
60 #include "wine/unicode.h"
61 #include "wine/debug.h"
62
63 WINE_DEFAULT_DEBUG_CHANNEL(int21);
64 #if defined(__svr4__) || defined(_SCO_DS)
65 /* SVR4 DOESNT do locking the same way must implement properly */
66 #define LOCK_EX 0
67 #define LOCK_SH 1
68 #define LOCK_NB 8
69 #endif
70
71
72 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
73
74 /* Define the drive parameter block, as used by int21/1F
75 * and int21/32. This table can be accessed through the
76 * global 'dpb' pointer, which points into the local dos
77 * heap.
78 */
79 struct DPB
80 {
81 BYTE drive_num; /* 0=A, etc. */
82 BYTE unit_num; /* Drive's unit number (?) */
83 WORD sector_size; /* Sector size in bytes */
84 BYTE high_sector; /* Highest sector in a cluster */
85 BYTE shift; /* Shift count (?) */
86 WORD reserved; /* Number of reserved sectors at start */
87 BYTE num_FAT; /* Number of FATs */
88 WORD dir_entries; /* Number of root dir entries */
89 WORD first_data; /* First data sector */
90 WORD high_cluster; /* Highest cluster number */
91 WORD sectors_in_FAT; /* Number of sectors per FAT */
92 WORD start_dir; /* Starting sector of first dir */
93 DWORD driver_head; /* Address of device driver header (?) */
94 BYTE media_ID; /* Media ID */
95 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
96 DWORD next; /* Pointer to next DPB in list */
97 WORD free_search; /* Free cluster search start */
98 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
99 };
100
101 struct EDPB /* FAT32 extended Drive Parameter Block */
102 { /* from Ralf Brown's Interrupt List */
103 struct DPB dpb; /* first 24 bytes = original DPB */
104
105 BYTE edpb_flags; /* undocumented/unknown flags */
106 DWORD next_edpb; /* pointer to next EDPB */
107 WORD free_cluster; /* cluster to start search for free space on write, typically
108 the last cluster allocated */
109 WORD clusters_free; /* number of free clusters on drive or FFFF = unknown */
110 WORD clusters_free_hi; /* hiword of clusters_free */
111 WORD mirroring_flags; /* mirroring flags: bit 7 set = do not mirror active FAT */
112 /* bits 0-3 = 0-based number of the active FAT */
113 WORD info_sector; /* sector number of file system info sector, or FFFF for none */
114 WORD spare_boot_sector; /* sector number of backup boot sector, or FFFF for none */
115 DWORD first_cluster; /* sector number of the first cluster */
116 DWORD max_cluster; /* sector number of the last cluster */
117 DWORD fat_clusters; /* number of clusters occupied by FAT */
118 DWORD root_cluster; /* cluster number of start of root directory */
119 DWORD free_cluster2; /* same as free_cluster: cluster at which to start
120 search for free space when writing */
121
122 };
123
124 DWORD dpbsegptr;
125
126 struct DosHeap {
127 BYTE mediaID;
128 BYTE biosdate[8];
129 struct DPB dpb;
130 };
131 static struct DosHeap *heap;
132 static WORD DosHeapHandle;
133
134 extern char TempDirectory[];
135
136 static void INT21_ReadConfigSys(void)
137 {
138 static int done;
139 if (!done) DOSCONF_ReadConfig();
140 done = 1;
141 }
142
143 static BOOL INT21_CreateHeap(void)
144 {
145 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
146 {
147 WARN("Out of memory\n");
148 return FALSE;
149 }
150 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
151 dpbsegptr = MAKESEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
152 strcpy(heap->biosdate, "01/01/80");
153 return TRUE;
154 }
155
156 static BYTE *GetCurrentDTA( CONTEXT86 *context )
157 {
158 TDB *pTask = TASK_GetCurrent();
159
160 /* FIXME: This assumes DTA was set correctly! */
161 return (BYTE *)CTX_SEG_OFF_TO_LIN( context, SELECTOROF(pTask->dta),
162 (DWORD)OFFSETOF(pTask->dta) );
163 }
164
165
166 void CreateBPB(int drive, BYTE *data, BOOL16 limited)
167 /* limited == TRUE is used with INT 0x21/0x440d */
168 {
169 if (drive > 1) {
170 setword(data, 512);
171 data[2] = 2;
172 setword(&data[3], 0);
173 data[5] = 2;
174 setword(&data[6], 240);
175 setword(&data[8], 64000);
176 data[0x0a] = 0xf8;
177 setword(&data[0x0b], 40);
178 setword(&data[0x0d], 56);
179 setword(&data[0x0f], 2);
180 setword(&data[0x11], 0);
181 if (!limited) {
182 setword(&data[0x1f], 800);
183 data[0x21] = 5;
184 setword(&data[0x22], 1);
185 }
186 } else { /* 1.44mb */
187 setword(data, 512);
188 data[2] = 2;
189 setword(&data[3], 0);
190 data[5] = 2;
191 setword(&data[6], 240);
192 setword(&data[8], 2880);
193 data[0x0a] = 0xf8;
194 setword(&data[0x0b], 6);
195 setword(&data[0x0d], 18);
196 setword(&data[0x0f], 2);
197 setword(&data[0x11], 0);
198 if (!limited) {
199 setword(&data[0x1f], 80);
200 data[0x21] = 7;
201 setword(&data[0x22], 2);
202 }
203 }
204 }
205
206 static int INT21_GetFreeDiskSpace( CONTEXT86 *context )
207 {
208 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
209 char root[] = "A:\\";
210
211 *root += DOS_GET_DRIVE( DL_reg(context) );
212 if (!GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
213 &free_clusters, &total_clusters )) return 0;
214 SET_AX( context, cluster_sectors );
215 SET_BX( context, free_clusters );
216 SET_CX( context, sector_bytes );
217 SET_DX( context, total_clusters );
218 return 1;
219 }
220
221 static int INT21_GetDriveAllocInfo( CONTEXT86 *context )
222 {
223 if (!INT21_GetFreeDiskSpace( context )) return 0;
224 if (!heap && !INT21_CreateHeap()) return 0;
225 heap->mediaID = 0xf0;
226 context->SegDs = DosHeapHandle;
227 SET_BX( context, (int)&heap->mediaID - (int)heap );
228 return 1;
229 }
230
231 static int FillInDrivePB( int drive )
232 {
233 if(!DRIVE_IsValid(drive))
234 {
235 SetLastError( ERROR_INVALID_DRIVE );
236 return 0;
237 }
238 else if (heap || INT21_CreateHeap())
239 {
240 /* FIXME: I have no idea what a lot of this information should
241 * say or whether it even really matters since we're not allowing
242 * direct block access. However, some programs seem to depend on
243 * getting at least _something_ back from here. The 'next' pointer
244 * does worry me, though. Should we have a complete table of
245 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
246 */
247 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
248 heap->dpb.sector_size = 512;
249 heap->dpb.high_sector = 1;
250 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
251 heap->dpb.reserved = 0;
252 heap->dpb.num_FAT = 1;
253 heap->dpb.dir_entries = 2;
254 heap->dpb.first_data = 2;
255 heap->dpb.high_cluster = 64000;
256 heap->dpb.sectors_in_FAT = 1;
257 heap->dpb.start_dir = 1;
258 heap->dpb.driver_head = 0;
259 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
260 heap->dpb.access_flag = 0;
261 heap->dpb.next = 0;
262 heap->dpb.free_search = 0;
263 heap->dpb.free_clusters = 0xFFFF; /* unknown */
264 return 1;
265 }
266
267 return 0;
268 }
269
270 static void GetDrivePB( CONTEXT86 *context, int drive )
271 {
272 if (FillInDrivePB( drive ))
273 {
274 SET_AL( context, 0x00 );
275 context->SegDs = SELECTOROF(dpbsegptr);
276 SET_BX( context, OFFSETOF(dpbsegptr) );
277 }
278 else
279 {
280 SET_AX( context, 0x00ff );
281 }
282 }
283
284
285 static void ioctlGetDeviceInfo( CONTEXT86 *context )
286 {
287 int curr_drive;
288 const DOS_DEVICE *dev;
289
290 TRACE("(%d)\n", BX_reg(context));
291
292 RESET_CFLAG(context);
293
294 /* DOS device ? */
295 if ((dev = DOSFS_GetDeviceByHandle( DosFileHandleToWin32Handle(BX_reg(context)) )))
296 {
297 SET_DX( context, dev->flags );
298 return;
299 }
300
301 /* it seems to be a file */
302 curr_drive = DRIVE_GetCurrentDrive();
303 SET_DX( context, 0x0140 + curr_drive + ((curr_drive > 1) ? 0x0800 : 0) );
304 /* no floppy */
305 /* bits 0-5 are current drive
306 * bit 6 - file has NOT been written..FIXME: correct?
307 * bit 8 - generate int24 if no diskspace on write/ read past end of file
308 * bit 11 - media not removable
309 * bit 14 - don't set file date/time on closing
310 * bit 15 - file is remote
311 */
312 }
313
314 static BOOL ioctlGenericBlkDevReq( CONTEXT86 *context )
315 {
316 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
317 int drive = DOS_GET_DRIVE( BL_reg(context) );
318
319 if (!DRIVE_IsValid(drive))
320 {
321 SetLastError( ERROR_FILE_NOT_FOUND );
322 return TRUE;
323 }
324
325 if (CH_reg(context) != 0x08)
326 {
327 INT_BARF( context, 0x21 );
328 return FALSE;
329 }
330
331 switch (CL_reg(context))
332 {
333 case 0x4a: /* lock logical volume */
334 TRACE("lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
335 break;
336
337 case 0x60: /* get device parameters */
338 /* used by w4wgrp's winfile */
339 memset(dataptr, 0, 0x20); /* DOS 6.22 uses 0x20 bytes */
340 dataptr[0] = 0x04;
341 dataptr[6] = 0; /* media type */
342 if (drive > 1)
343 {
344 dataptr[1] = 0x05; /* fixed disk */
345 setword(&dataptr[2], 0x01); /* non removable */
346 setword(&dataptr[4], 0x300); /* # of cylinders */
347 }
348 else
349 {
350 dataptr[1] = 0x07; /* block dev, floppy */
351 setword(&dataptr[2], 0x02); /* removable */
352 setword(&dataptr[4], 80); /* # of cylinders */
353 }
354 CreateBPB(drive, &dataptr[7], TRUE);
355 RESET_CFLAG(context);
356 break;
357
358 case 0x41: /* write logical device track */
359 case 0x61: /* read logical device track */
360 {
361 BYTE drive = BL_reg(context) ?
362 BL_reg(context) : DRIVE_GetCurrentDrive();
363 WORD head = *(WORD *)dataptr+1;
364 WORD cyl = *(WORD *)dataptr+3;
365 WORD sect = *(WORD *)dataptr+5;
366 WORD nrsect = *(WORD *)dataptr+7;
367 BYTE *data = (BYTE *)dataptr+9;
368 int (*raw_func)(BYTE, DWORD, DWORD, BYTE *, BOOL);
369
370 raw_func = (CL_reg(context) == 0x41) ?
371 DRIVE_RawWrite : DRIVE_RawRead;
372
373 if (raw_func(drive, head*cyl*sect, nrsect, data, FALSE))
374 RESET_CFLAG(context);
375 else
376 {
377 SET_AX( context, 0x1e ); /* read fault */
378 SET_CFLAG(context);
379 }
380 }
381 break;
382 case 0x66:/* get disk serial number */
383 {
384 char label[12],fsname[9],path[4];
385 DWORD serial;
386
387 strcpy(path,"x:\\");path[0]=drive+'A';
388 GetVolumeInformationA(
389 path,label,12,&serial,NULL,NULL,fsname,9
390 );
391 *(WORD*)dataptr = 0;
392 memcpy(dataptr+2,&serial,4);
393 memcpy(dataptr+6,label ,11);
394 memcpy(dataptr+17,fsname,8);
395 }
396 break;
397
398 case 0x6a:
399 TRACE("logical volume %d unlocked.\n",drive);
400 break;
401
402 case 0x6f:
403 memset(dataptr+1, '\0', dataptr[0]-1);
404 dataptr[1] = dataptr[0];
405 dataptr[2] = 0x07; /* protected mode driver; no eject; no notification */
406 dataptr[3] = 0xFF; /* no physical drive */
407 break;
408
409 case 0x72:
410 /* Trail on error implementation */
411 SET_AX( context, GetDriveType16(BL_reg(context)) == DRIVE_UNKNOWN ? 0x0f : 0x01 );
412 SET_CFLAG(context); /* Seems to be set all the time */
413 break;
414
415 default:
416 INT_BARF( context, 0x21 );
417 }
418 return FALSE;
419 }
420
421 static void INT21_ParseFileNameIntoFCB( CONTEXT86 *context )
422 {
423 char *filename =
424 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
425 char *fcb =
426 CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi );
427 char *s;
428 WCHAR *buffer;
429 WCHAR fcbW[12];
430 INT buffer_len, len;
431
432 SET_AL( context, 0xff ); /* failed */
433
434 TRACE("filename: '%s'\n", filename);
435
436 s = filename;
437 len = 0;
438 while (*s)
439 {
440 if ((*s != ' ') && (*s != '\r') && (*s != '\n'))
441 {
442 s++;
443 len++;
444 }
445 else
446 break;
447 }
448
449 buffer_len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, NULL, 0);
450 buffer = HeapAlloc( GetProcessHeap(), 0, (buffer_len + 1) * sizeof(WCHAR));
451 len = MultiByteToWideChar(CP_OEMCP, 0, filename, len, buffer, buffer_len);
452 buffer[len] = 0;
453 DOSFS_ToDosFCBFormat(buffer, fcbW);
454 HeapFree(GetProcessHeap(), 0, buffer);
455 WideCharToMultiByte(CP_OEMCP, 0, fcbW, 12, fcb + 1, 12, NULL, NULL);
456 *fcb = 0;
457 TRACE("FCB: '%s'\n", fcb + 1);
458
459 SET_AL( context, ((strchr(filename, '*')) || (strchr(filename, '$'))) != 0 );
460
461 /* point DS:SI to first unparsed character */
462 SET_SI( context, context->Esi + (int)s - (int)filename );
463 }
464
465
466 /* Many calls translate a drive argument like this:
467 drive number (00h = default, 01h = A:, etc)
468 */
469 static char drivestring[]="default";
470
471 char *INT21_DriveName(int drive)
472 {
473
474 if(drive >0)
475 {
476 drivestring[0]= (unsigned char)drive + '@';
477 drivestring[1]=':';
478 drivestring[2]=0;
479 }
480 return drivestring;
481 }
482 static BOOL INT21_CreateFile( CONTEXT86 *context )
483 {
484 SET_AX( context, _lcreat16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
485 context->Edx ), CX_reg(context) ) );
486 return (AX_reg(context) == (WORD)HFILE_ERROR16);
487 }
488
489 static HFILE16 _lcreat16_uniq( LPCSTR path, INT attr )
490 {
491 /* Mask off all flags not explicitly allowed by the doc */
492 attr &= FILE_ATTRIBUTE_READONLY | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM;
493 return Win32HandleToDosFileHandle( CreateFileA( path, GENERIC_READ | GENERIC_WRITE,
494 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
495 CREATE_NEW, attr, 0 ));
496 }
497
498 static void OpenExistingFile( CONTEXT86 *context )
499 {
500 SET_AX( context, _lopen16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
501 AL_reg(context) ));
502 if (AX_reg(context) == (WORD)HFILE_ERROR16)
503 {
504 SET_AX( context, GetLastError() );
505 SET_CFLAG(context);
506 }
507 }
508
509 static BOOL INT21_ExtendedOpenCreateFile(CONTEXT86 *context )
510 {
511 BOOL bExtendedError = FALSE;
512 BYTE action = DL_reg(context);
513
514 /* Shuffle arguments to call OpenExistingFile */
515 SET_AL( context, BL_reg(context) );
516 SET_DX( context, SI_reg(context) );
517 /* BX,CX and DX should be preserved */
518 OpenExistingFile(context);
519
520 if ((context->EFlags & 0x0001) == 0) /* File exists */
521 {
522 UINT16 uReturnCX = 0;
523
524 /* Now decide what do do */
525
526 if ((action & 0x07) == 0)
527 {
528 _lclose16( AX_reg(context) );
529 SET_AX( context, 0x0050 ); /*File exists*/
530 SET_CFLAG(context);
531 WARN("extended open/create: failed because file exists \n");
532 }
533 else if ((action & 0x07) == 2)
534 {
535 /* Truncate it, but first check if opened for write */
536 if ((BL_reg(context) & 0x0007)== 0)
537 {
538 _lclose16( AX_reg(context) );
539 WARN("extended open/create: failed, trunc on ro file\n");
540 SET_AX( context, 0x000C ); /*Access code invalid*/
541 SET_CFLAG(context);
542 }
543 else
544 {
545 TRACE("extended open/create: Closing before truncate\n");
546 if (_lclose16( AX_reg(context) ))
547 {
548 WARN("extended open/create: close before trunc failed\n");
549 SET_AX( context, 0x0019 ); /*Seek Error*/
550 SET_CX( context, 0 );
551 SET_CFLAG(context);
552 }
553 /* Shuffle arguments to call CreateFile */
554
555 TRACE("extended open/create: Truncating\n");
556 SET_AL( context, BL_reg(context) );
557 /* CX is still the same */
558 SET_DX( context, SI_reg(context) );
559 bExtendedError = INT21_CreateFile(context);
560
561 if (context->EFlags & 0x0001) /*no file open, flags set */
562 {
563 WARN("extended open/create: trunc failed\n");
564 return bExtendedError;
565 }
566 uReturnCX = 0x3;
567 }
568 }
569 else uReturnCX = 0x1;
570
571 SET_CX( context, uReturnCX );
572 }
573 else /* file does not exist */
574 {
575 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
576 if ((action & 0xF0)== 0)
577 {
578 SET_CX( context, 0 );
579 SET_CFLAG(context);
580 WARN("extended open/create: failed, file dosen't exist\n");
581 }
582 else
583 {
584 /* Shuffle arguments to call CreateFile */
585 TRACE("extended open/create: Creating\n");
586 SET_AL( context, BL_reg(context) );
587 /* CX should still be the same */
588 SET_DX( context, SI_reg(context) );
589 bExtendedError = INT21_CreateFile(context);
590 if (context->EFlags & 0x0001) /*no file open, flags set */
591 {
592 WARN("extended open/create: create failed\n");
593 return bExtendedError;
594 }
595 SET_CX( context, 2 );
596 }
597 }
598
599 return bExtendedError;
600 }
601
602
603 static BOOL INT21_ChangeDir( CONTEXT86 *context )
604 {
605 int drive;
606 char *dirname = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
607 WCHAR dirnameW[MAX_PATH];
608
609 TRACE("changedir %s\n", dirname);
610 if (dirname[0] && (dirname[1] == ':'))
611 {
612 drive = toupper(dirname[0]) - 'A';
613 dirname += 2;
614 }
615 else drive = DRIVE_GetCurrentDrive();
616 MultiByteToWideChar(CP_OEMCP, 0, dirname, -1, dirnameW, MAX_PATH);
617 return DRIVE_Chdir( drive, dirnameW );
618 }
619
620
621 static int INT21_FindFirst( CONTEXT86 *context )
622 {
623 char *p;
624 const char *path;
625 DOS_FULL_NAME full_name;
626 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
627 WCHAR pathW[MAX_PATH];
628 WCHAR maskW[12];
629
630 path = (const char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
631 MultiByteToWideChar(CP_OEMCP, 0, path, -1, pathW, MAX_PATH);
632
633 dta->unixPath = NULL;
634 if (!DOSFS_GetFullName( pathW, FALSE, &full_name ))
635 {
636 SET_AX( context, GetLastError() );
637 SET_CFLAG(context);
638 return 0;
639 }
640 dta->unixPath = HeapAlloc( GetProcessHeap(), 0, strlen(full_name.long_name)+1 );
641 strcpy( dta->unixPath, full_name.long_name );
642 p = strrchr( dta->unixPath, '/' );
643 *p = '\0';
644
645 MultiByteToWideChar(CP_OEMCP, 0, p + 1, -1, pathW, MAX_PATH);
646
647 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
648 * (doesn't matter as it is set below anyway)
649 */
650 if (!DOSFS_ToDosFCBFormat( pathW, maskW ))
651 {
652 HeapFree( GetProcessHeap(), 0, dta->unixPath );
653 dta->unixPath = NULL;
654 SetLastError( ERROR_FILE_NOT_FOUND );
655 SET_AX( context, ERROR_FILE_NOT_FOUND );
656 SET_CFLAG(context);
657 return 0;
658 }
659 WideCharToMultiByte(CP_OEMCP, 0, maskW, 12, dta->mask, sizeof(dta->mask), NULL, NULL);
660 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
661 : DRIVE_GetCurrentDrive();
662 dta->count = 0;
663 dta->search_attr = CL_reg(context);
664 return 1;
665 }
666
667
668 static int INT21_FindNext( CONTEXT86 *context )
669 {
670 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA(context);
671 WIN32_FIND_DATAA entry;
672 int count;
673
674 if (!dta->unixPath) return 0;
675 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
676 dta->search_attr, dta->count, &entry )))
677 {
678 HeapFree( GetProcessHeap(), 0, dta->unixPath );
679 dta->unixPath = NULL;
680 return 0;
681 }
682 if ((int)dta->count + count > 0xffff)
683 {
684 WARN("Too many directory entries in %s\n", dta->unixPath );
685 HeapFree( GetProcessHeap(), 0, dta->unixPath );
686 dta->unixPath = NULL;
687 return 0;
688 }
689 dta->count += count;
690 dta->fileattr = entry.dwFileAttributes;
691 dta->filesize = entry.nFileSizeLow;
692 FileTimeToDosDateTime( &entry.ftLastWriteTime,
693 &dta->filedate, &dta->filetime );
694 strcpy( dta->filename, entry.cAlternateFileName );
695 if (!memchr(dta->mask,'?',11)) {
696 /* wildcardless search, release resources in case no findnext will
697 * be issued, and as a workaround in case file creation messes up
698 * findnext, as sometimes happens with pkunzip */
699 HeapFree( GetProcessHeap(), 0, dta->unixPath );
700 dta->unixPath = NULL;
701 }
702 return 1;
703 }
704
705
706 static BOOL INT21_CreateTempFile( CONTEXT86 *context )
707 {
708 static int counter = 0;
709 char *name = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx );
710 char *p = name + strlen(name);
711
712 /* despite what Ralf Brown says, some programs seem to call without
713 * ending backslash (DOS accepts that, so we accept it too) */
714 if ((p == name) || (p[-1] != '\\')) *p++ = '\\';
715
716 for (;;)
717 {
718 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
719 counter = (counter + 1) % 1000;
720
721 if ((SET_AX( context, _lcreat16_uniq( name, 0 ))) != (WORD)HFILE_ERROR16)
722 {
723 TRACE("created %s\n", name );
724 return TRUE;
725 }
726 if (GetLastError() != ERROR_FILE_EXISTS) return FALSE;
727 }
728 }
729
730
731 static BOOL INT21_GetCurrentDirectory( CONTEXT86 *context )
732 {
733 int drive = DOS_GET_DRIVE( DL_reg(context) );
734 char *ptr = (char *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi );
735
736 if (!DRIVE_IsValid(drive))
737 {
738 SetLastError( ERROR_INVALID_DRIVE );
739 return FALSE;
740 }
741 WideCharToMultiByte(CP_OEMCP, 0, DRIVE_GetDosCwd(drive), -1, ptr, 64, NULL, NULL);
742 ptr[63] = 0; /* ensure 0 termination */
743 SET_AX( context, 0x0100 ); /* success return code */
744 return TRUE;
745 }
746
747
748 static int INT21_GetDiskSerialNumber( CONTEXT86 *context )
749 {
750 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
751 int drive = DOS_GET_DRIVE( BL_reg(context) );
752
753 if (!DRIVE_IsValid(drive))
754 {
755 SetLastError( ERROR_INVALID_DRIVE );
756 return 0;
757 }
758
759 *(WORD *)dataptr = 0;
760 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
761 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
762 strncpy(dataptr + 0x11, "FAT16 ", 8);
763 return 1;
764 }
765
766
767 static int INT21_SetDiskSerialNumber( CONTEXT86 *context )
768 {
769 BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
770 int drive = DOS_GET_DRIVE( BL_reg(context) );
771
772 if (!DRIVE_IsValid(drive))
773 {
774 SetLastError( ERROR_INVALID_DRIVE );
775 return 0;
776 }
777
778 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
779 return 1;
780 }
781
782
783 /* microsoft's programmers should be shot for using CP/M style int21
784 calls in Windows for Workgroup's winfile.exe */
785
786 static int INT21_FindFirstFCB( CONTEXT86 *context )
787 {
788 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
789 FINDFILE_FCB *pFCB;
790 LPCSTR root, cwd;
791 int drive;
792
793 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
794 else pFCB = (FINDFILE_FCB *)fcb;
795 drive = DOS_GET_DRIVE( pFCB->drive );
796 if (!DRIVE_IsValid( drive )) return 0;
797 root = DRIVE_GetRoot( drive );
798 cwd = DRIVE_GetUnixCwd( drive );
799 pFCB->unixPath = HeapAlloc( GetProcessHeap(), 0,
800 strlen(root)+strlen(cwd)+2 );
801 if (!pFCB->unixPath) return 0;
802 strcpy( pFCB->unixPath, root );
803 strcat( pFCB->unixPath, "/" );
804 strcat( pFCB->unixPath, cwd );
805 pFCB->count = 0;
806 return 1;
807 }
808
809
810 static int INT21_FindNextFCB( CONTEXT86 *context )
811 {
812 BYTE *fcb = (BYTE *)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx);
813 FINDFILE_FCB *pFCB;
814 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA(context);
815 WIN32_FIND_DATAA entry;
816 BYTE attr;
817 int count;
818
819 if (*fcb == 0xff) /* extended FCB ? */
820 {
821 attr = fcb[6];
822 pFCB = (FINDFILE_FCB *)(fcb + 7);
823 }
824 else
825 {
826 attr = 0;
827 pFCB = (FINDFILE_FCB *)fcb;
828 }
829
830 if (!pFCB->unixPath) return 0;
831 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
832 DOS_GET_DRIVE( pFCB->drive ), attr,
833 pFCB->count, &entry )))
834 {
835 HeapFree( GetProcessHeap(), 0, pFCB->unixPath );
836 pFCB->unixPath = NULL;
837 return 0;
838 }
839 pFCB->count += count;
840
841 if (*fcb == 0xff) { /* place extended FCB header before pResult if called with extended FCB */
842 *(BYTE *)pResult = 0xff;
843 (BYTE *)pResult +=6; /* leave reserved field behind */
844 *(BYTE *)pResult = entry.dwFileAttributes;
845 ((BYTE *)pResult)++;
846 }
847 *(BYTE *)pResult = DOS_GET_DRIVE( pFCB->drive ); /* DOS_DIRENTRY_LAYOUT after current drive number */
848 ((BYTE *)pResult)++;
849 pResult->fileattr = entry.dwFileAttributes;
850 pResult->cluster = 0; /* what else? */
851 pResult->filesize = entry.nFileSizeLow;
852 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
853 FileTimeToDosDateTime( &entry.ftLastWriteTime,
854 &pResult->filedate, &pResult->filetime );
855
856 /* Convert file name to FCB format */
857
858 memset( pResult->filename, ' ', sizeof(pResult->filename) );
859 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
860 else if (!strcmp( entry.cAlternateFileName, ".." ))
861 pResult->filename[0] = pResult->filename[1] = '.';
862 else
863 {
864 char *p = strrchr( entry.cAlternateFileName, '.' );
865 if (p && p[1] && (p != entry.cAlternateFileName))
866 {
867 memcpy( pResult->filename, entry.cAlternateFileName,
868 min( (p - entry.cAlternateFileName), 8 ) );
869 memcpy( pResult->filename + 8, p + 1, min( strlen(p), 3 ) );
870 }
871 else
872 memcpy( pResult->filename, entry.cAlternateFileName,
873 min( strlen(entry.cAlternateFileName), 8 ) );
874 }
875 return 1;
876 }
877
878
879 static BOOL
880 INT21_networkfunc (CONTEXT86 *context)
881 {
882 switch (AL_reg(context)) {
883 case 0x00: /* Get machine name. */
884 {
885 char *dst = CTX_SEG_OFF_TO_LIN (context,context->SegDs,context->Edx);
886 TRACE("getting machine name to %p\n", dst);
887 if (gethostname (dst, 15))
888 {
889 WARN("failed!\n");
890 SetLastError( ER_NoNetwork );
891 return TRUE;
892 } else {
893 int len = strlen (dst);
894 while (len < 15)
895 dst[len++] = ' ';
896 dst[15] = 0;
897 SET_CH( context, 1 ); /* Valid */
898 SET_CL( context, 1 ); /* NETbios number??? */
899 TRACE("returning %s\n", debugstr_an (dst, 16));
900 return FALSE;
901 }
902 }
903
904 default:
905 SetLastError( ER_NoNetwork );
906 return TRUE;
907 }
908 }
909
910
911 /***********************************************************************
912 * INT_Int21Handler
913 */
914 void WINAPI INT_Int21Handler( CONTEXT86 *context )
915 {
916 BOOL bSetDOSExtendedError = FALSE;
917
918 switch(AH_reg(context))
919 {
920 case 0x0e: /* SELECT DEFAULT DRIVE */
921 TRACE("SELECT DEFAULT DRIVE %d\n", DL_reg(context));
922 DRIVE_SetCurrentDrive( DL_reg(context) );
923 SET_AL( context, MAX_DOS_DRIVES );
924 break;
925
926 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
927 TRACE("FIND FIRST MATCHING FILE USING FCB %p\n",
928 CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
929 if (!INT21_FindFirstFCB(context))
930 {
931 SET_AL( context, 0xff );
932 break;
933 }
934 /* else fall through */
935
936 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
937 SET_AL( context, INT21_FindNextFCB(context) ? 0x00 : 0xff );
938 break;
939
940 case 0x19: /* GET CURRENT DEFAULT DRIVE */
941 SET_AL( context, DRIVE_GetCurrentDrive() );
942 break;
943
944 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
945 SET_DL( context, 0 );
946 if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff );
947 break;
948
949 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
950 if (!INT21_GetDriveAllocInfo(context)) SET_AX( context, 0xffff );
951 break;
952
953 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
954 GetDrivePB(context, DRIVE_GetCurrentDrive());
955 break;
956
957 case 0x29: /* PARSE FILENAME INTO FCB */
958 INT21_ParseFileNameIntoFCB(context);
959 break;
960
961 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
962 TRACE("GET DOS DRIVE PARAMETER BLOCK FOR DRIVE %s\n",
963 INT21_DriveName( DL_reg(context)));
964 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
965 break;
966
967 case 0x33: /* MULTIPLEXED */
968 switch (AL_reg(context))
969 {
970 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
971 TRACE("GET CURRENT EXTENDED BREAK STATE\n");
972 INT21_ReadConfigSys();
973 SET_DL( context, DOSCONF_config.brk_flag );
974 break;
975
976 case 0x01: /* SET EXTENDED BREAK STATE */
977 TRACE("SET CURRENT EXTENDED BREAK STATE\n");
978 INT21_ReadConfigSys();
979 DOSCONF_config.brk_flag = (DL_reg(context) > 0);
980 break;
981
982 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
983 TRACE("GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE\n");
984 INT21_ReadConfigSys();
985 /* ugly coding in order to stay reentrant */
986 if (DL_reg(context))
987 {
988 SET_DL( context, DOSCONF_config.brk_flag );
989 DOSCONF_config.brk_flag = 1;
990 }
991 else
992 {
993 SET_DL( context, DOSCONF_config.brk_flag );
994 DOSCONF_config.brk_flag = 0;
995 }
996 break;
997
998 case 0x05: /* GET BOOT DRIVE */
999 TRACE("GET BOOT DRIVE\n");
1000 SET_DL( context, 3 );
1001 /* c: is Wine's bootdrive (a: is 1)*/
1002 break;
1003
1004 case 0x06: /* GET TRUE VERSION NUMBER */
1005 TRACE("GET TRUE VERSION NUMBER\n");
1006 SET_BX( context, (HIWORD(GetVersion16() >> 8)) | (HIWORD(GetVersion16() << 8)) );
1007 SET_DX( context, 0x00 );
1008 break;
1009
1010 default:
1011 INT_BARF( context, 0x21 );
1012 break;
1013 }
1014 break;
1015
1016 case 0x36: /* GET FREE DISK SPACE */
1017 TRACE("GET FREE DISK SPACE FOR DRIVE %s\n",
1018 INT21_DriveName( DL_reg(context)));
1019 if (!INT21_GetFreeDiskSpace(context)) SET_AX( context, 0xffff );
1020 break;
1021
1022 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1023 TRACE("MKDIR %s\n",
1024 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1025 bSetDOSExtendedError = (!CreateDirectory16( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1026 context->Edx ), NULL));
1027 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1028 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1029 * denied), while CreateDirectory return several ones. remap some of
1030 * them. -Marcus
1031 */
1032 if (bSetDOSExtendedError) {
1033 switch (GetLastError()) {
1034 case ERROR_ALREADY_EXISTS:
1035 case ERROR_FILENAME_EXCED_RANGE:
1036 case ERROR_DISK_FULL:
1037 SetLastError(ERROR_ACCESS_DENIED);
1038 break;
1039 default: break;
1040 }
1041 }
1042 break;
1043
1044 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1045 TRACE("CHDIR %s\n",
1046 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1047 bSetDOSExtendedError = !INT21_ChangeDir(context);
1048 break;
1049
1050 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1051 TRACE("CREAT flag 0x%02x %s\n",CX_reg(context),
1052 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1053 bSetDOSExtendedError = INT21_CreateFile( context );
1054 break;
1055
1056 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1057 TRACE("OPEN mode 0x%02x %s\n",AL_reg(context),
1058 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1059 OpenExistingFile(context);
1060 break;
1061
1062 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1063 TRACE("READ from %d to %04lX:%04X for %d byte\n",BX_reg(context),
1064 context->SegDs,DX_reg(context),CX_reg(context) );
1065 {
1066 LONG result;
1067 if (ISV86(context))
1068 result = _hread16( BX_reg(context),
1069 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1070 context->Edx ),
1071 CX_reg(context) );
1072 else
1073 result = WIN16_hread( BX_reg(context),
1074 MAKESEGPTR( context->SegDs, context->Edx ),
1075 CX_reg(context) );
1076 if (result == -1) bSetDOSExtendedError = TRUE;
1077 else SET_AX( context, (WORD)result );
1078 }
1079 break;
1080
1081 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1082 TRACE("LSEEK handle %d offset %ld from %s\n",
1083 BX_reg(context), MAKELONG(DX_reg(context),CX_reg(context)),
1084 (AL_reg(context)==0)?"start of file":(AL_reg(context)==1)?
1085 "current file position":"end of file");
1086 {
1087 LONG status = _llseek16( BX_reg(context),
1088 MAKELONG(DX_reg(context),CX_reg(context)),
1089 AL_reg(context) );
1090 if (status == -1) bSetDOSExtendedError = TRUE;
1091 else
1092 {
1093 SET_AX( context, LOWORD(status) );
1094 SET_DX( context, HIWORD(status) );
1095 }
1096 }
1097 break;
1098
1099 case 0x43: /* FILE ATTRIBUTES */
1100 switch (AL_reg(context))
1101 {
1102 case 0x00:
1103 TRACE("GET FILE ATTRIBUTES for %s\n",
1104 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1105 SET_AX( context, GetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1106 context->Edx)));
1107 if (AX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1108 else SET_CX( context, AX_reg(context) );
1109 break;
1110
1111 case 0x01:
1112 TRACE("SET FILE ATTRIBUTES 0x%02x for %s\n", CX_reg(context),
1113 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1114 bSetDOSExtendedError =
1115 (!SetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1116 context->Edx),
1117 CX_reg(context) ));
1118 break;
1119 case 0x02:
1120 FIXME("GET COMPRESSED FILE SIZE for %s stub\n",
1121 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1122 }
1123 break;
1124
1125 case 0x44: /* IOCTL */
1126 switch (AL_reg(context))
1127 {
1128 case 0x00:
1129 ioctlGetDeviceInfo(context);
1130 break;
1131
1132 case 0x01:
1133 break;
1134
1135 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1136 /*BYTE *dataptr = CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);*/
1137 int drive = DOS_GET_DRIVE(BL_reg(context));
1138
1139 FIXME("program tried to write to block device control channel of drive %d:\n",drive);
1140 /* for (i=0;i<CX_reg(context);i++)
1141 fprintf(stdnimp,"%02x ",dataptr[i]);
1142 fprintf(stdnimp,"\n");*/
1143 SET_AX( context, context->Ecx );
1144 break;
1145 }
1146 case 0x08: /* Check if drive is removable. */
1147 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOVABLE for drive %s\n",
1148 INT21_DriveName( BL_reg(context)));
1149 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1150 {
1151 case DRIVE_UNKNOWN:
1152 SetLastError( ERROR_INVALID_DRIVE );
1153 SET_AX( context, ERROR_INVALID_DRIVE );
1154 SET_CFLAG(context);
1155 break;
1156 case DRIVE_REMOVABLE:
1157 SET_AX( context, 0 ); /* removable */
1158 break;
1159 default:
1160 SET_AX( context, 1 ); /* not removable */
1161 break;
1162 }
1163 break;
1164
1165 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1166 TRACE("IOCTL - CHECK IF BLOCK DEVICE REMOTE for drive %s\n",
1167 INT21_DriveName( BL_reg(context)));
1168 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1169 {
1170 case DRIVE_UNKNOWN:
1171 SetLastError( ERROR_INVALID_DRIVE );
1172 SET_AX( context, ERROR_INVALID_DRIVE );
1173 SET_CFLAG(context);
1174 break;
1175 case DRIVE_REMOTE:
1176 SET_DX( context, (1<<9) | (1<<12) ); /* remote */
1177 break;
1178 default:
1179 SET_DX( context, 0 ); /* FIXME: use driver attr here */
1180 break;
1181 }
1182 break;
1183
1184 case 0x0a: /* check if handle (BX) is remote */
1185 TRACE("IOCTL - CHECK IF HANDLE %d IS REMOTE\n",BX_reg(context));
1186 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1187 * not set on close
1188 */
1189 SET_DX( context, 0 );
1190 break;
1191
1192 case 0x0d:
1193 TRACE("IOCTL - GENERIC BLOCK DEVICE REQUEST %s\n",
1194 INT21_DriveName( BL_reg(context)));
1195 bSetDOSExtendedError = ioctlGenericBlkDevReq(context);
1196 break;
1197
1198 case 0x0e: /* get logical drive mapping */
1199 TRACE("IOCTL - GET LOGICAL DRIVE MAP for drive %s\n",
1200 INT21_DriveName( BL_reg(context)));
1201 SET_AL( context, 0 ); /* drive has no mapping - FIXME: may be wrong*/
1202 break;
1203
1204 case 0x0F: /* Set logical drive mapping */
1205 {
1206 int drive;
1207 TRACE("IOCTL - SET LOGICAL DRIVE MAP for drive %s\n",
1208 INT21_DriveName( BL_reg(context)));
1209 drive = DOS_GET_DRIVE ( BL_reg(context) );
1210 if ( ! DRIVE_SetLogicalMapping ( drive, drive+1 ) )
1211 {
1212 SET_CFLAG(context);
1213 SET_AX( context, 0x000F ); /* invalid drive */
1214 }
1215 break;
1216 }
1217
1218 default:
1219 INT_BARF( context, 0x21 );
1220 break;
1221 }
1222 break;
1223
1224 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1225 TRACE("CWD - GET CURRENT DIRECTORY for drive %s\n",
1226 INT21_DriveName( DL_reg(context)));
1227 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1228 break;
1229
1230 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1231 TRACE("FINDFIRST mask 0x%04x spec %s\n",CX_reg(context),
1232 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1233 if (!INT21_FindFirst(context)) break;
1234 /* fall through */
1235
1236 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1237 TRACE("FINDNEXT\n");
1238 if (!INT21_FindNext(context))
1239 {
1240 SetLastError( ERROR_NO_MORE_FILES );
1241 SET_AX( context, ERROR_NO_MORE_FILES );
1242 SET_CFLAG(context);
1243 }
1244 else SET_AX( context, 0 ); /* OK */
1245 break;
1246
1247 case 0x5a: /* CREATE TEMPORARY FILE */
1248 TRACE("CREATE TEMPORARY FILE\n");
1249 bSetDOSExtendedError = !INT21_CreateTempFile(context);
1250 break;
1251
1252 case 0x5b: /* CREATE NEW FILE */
1253 TRACE("CREATE NEW FILE 0x%02x for %s\n", CX_reg(context),
1254 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1255 SET_AX( context,
1256 _lcreat16_uniq( CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1257 CX_reg(context) ));
1258 bSetDOSExtendedError = (AX_reg(context) != 0);
1259 break;
1260
1261 case 0x5e:
1262 bSetDOSExtendedError = INT21_networkfunc (context);
1263 break;
1264
1265 case 0x5f: /* NETWORK */
1266 switch (AL_reg(context))
1267 {
1268 case 0x07: /* ENABLE DRIVE */
1269 TRACE("ENABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1270 if (!DRIVE_Enable( DL_reg(context) ))
1271 {
1272 SetLastError( ERROR_INVALID_DRIVE );
1273 bSetDOSExtendedError = TRUE;
1274 }
1275 break;
1276
1277 case 0x08: /* DISABLE DRIVE */
1278 TRACE("DISABLE DRIVE %c:\n",(DL_reg(context)+'A'));
1279 if (!DRIVE_Disable( DL_reg(context) ))
1280 {
1281 SetLastError( ERROR_INVALID_DRIVE );
1282 bSetDOSExtendedError = TRUE;
1283 }
1284 break;
1285
1286 default:
1287 /* network software not installed */
1288 TRACE("NETWORK function AX=%04x not implemented\n",AX_reg(context));
1289 SetLastError( ER_NoNetwork );
1290 bSetDOSExtendedError = TRUE;
1291 break;
1292 }
1293 break;
1294
1295 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1296 TRACE("TRUENAME %s\n",
1297 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Esi));
1298 {
1299 if (!GetFullPathNameA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1300 context->Esi), 128,
1301 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1302 context->Edi),NULL))
1303 bSetDOSExtendedError = TRUE;
1304 else SET_AX( context, 0 );
1305 }
1306 break;
1307
1308 case 0x69: /* DISK SERIAL NUMBER */
1309 switch (AL_reg(context))
1310 {
1311 case 0x00:
1312 TRACE("GET DISK SERIAL NUMBER for drive %s\n",
1313 INT21_DriveName(BL_reg(context)));
1314 if (!INT21_GetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
1315 else SET_AX( context, 0 );
1316 break;
1317
1318 case 0x01:
1319 TRACE("SET DISK SERIAL NUMBER for drive %s\n",
1320 INT21_DriveName(BL_reg(context)));
1321 if (!INT21_SetDiskSerialNumber(context)) bSetDOSExtendedError = TRUE;
1322 else SET_AX( context, 1 );
1323 break;
1324 }
1325 break;
1326
1327 case 0x6C: /* Extended Open/Create*/
1328 TRACE("EXTENDED OPEN/CREATE %s\n",
1329 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edi));
1330 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
1331 break;
1332
1333 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
1334 switch(AL_reg(context))
1335 {
1336 case 0x39: /* Create directory */
1337 TRACE("LONG FILENAME - MAKE DIRECTORY %s\n",
1338 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
1339 bSetDOSExtendedError = (!CreateDirectoryA(
1340 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1341 context->Edx ), NULL));
1342 /* FIXME: CreateDirectory's LastErrors will clash with the ones
1343 * used by dos. AH=39 only returns 3 (path not found) and 5 (access
1344 * denied), while CreateDirectory return several ones. remap some of
1345 * them. -Marcus
1346 */
1347 if (bSetDOSExtendedError) {
1348 switch (GetLastError()) {
1349 case ERROR_ALREADY_EXISTS:
1350 case ERROR_FILENAME_EXCED_RANGE:
1351 case ERROR_DISK_FULL:
1352 SetLastError(ERROR_ACCESS_DENIED);
1353 break;
1354 default: break;
1355 }
1356 }
1357 break;
1358
1359 case 0x43: /* Get/Set file attributes */
1360 TRACE("LONG FILENAME -EXTENDED GET/SET FILE ATTRIBUTES %s\n",
1361 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
1362 switch (BL_reg(context))
1363 {
1364 case 0x00: /* Get file attributes */
1365 TRACE("\tretrieve attributes\n");
1366 SET_CX( context, GetFileAttributesA( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1367 context->Edx)));
1368 if (CX_reg(context) == 0xffff) bSetDOSExtendedError = TRUE;
1369 break;
1370 case 0x01:
1371 TRACE("\tset attributes 0x%04x\n",CX_reg(context));
1372 bSetDOSExtendedError = (!SetFileAttributesA(
1373 CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1374 context->Edx),
1375 CX_reg(context) ) );
1376 break;
1377 default:
1378 FIXME("Unimplemented long file name function:\n");
1379 INT_BARF( context, 0x21 );
1380 SET_CFLAG(context);
1381 SET_AL( context, 0 );
1382 break;
1383 }
1384 break;
1385 case 0x47: /* Get current directory */
1386 TRACE(" LONG FILENAME - GET CURRENT DIRECTORY for drive %s\n",
1387 INT21_DriveName(DL_reg(context)));
1388 bSetDOSExtendedError = !INT21_GetCurrentDirectory(context);
1389 break;
1390
1391 case 0x4e: /* Find first file */
1392 TRACE(" LONG FILENAME - FIND FIRST MATCHING FILE for %s\n",
1393 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx));
1394 /* FIXME: use attributes in CX */
1395 if ((SET_AX( context, FindFirstFile16(
1396 CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx),
1397 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1398 context->Edi))))
1399 == INVALID_HANDLE_VALUE16)
1400 bSetDOSExtendedError = TRUE;
1401 break;
1402 case 0x4f: /* Find next file */
1403 TRACE("LONG FILENAME - FIND NEXT MATCHING FILE for handle %d\n",
1404 BX_reg(context));
1405 if (!FindNextFile16( BX_reg(context),
1406 (WIN32_FIND_DATAA *)CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1407 context->Edi)))
1408 bSetDOSExtendedError = TRUE;
1409 break;
1410 case 0xa0:
1411 {
1412 LPCSTR driveroot = (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs,context->Edx);
1413 LPSTR buffer = (LPSTR)CTX_SEG_OFF_TO_LIN(context, context->SegEs,context->Edi);
1414 DWORD filename_len, flags;
1415
1416 TRACE("LONG FILENAME - GET VOLUME INFORMATION for drive having root dir '%s'.\n", driveroot);
1417 SET_AX( context, 0 );
1418 if (!GetVolumeInformationA( driveroot, NULL, 0, NULL, &filename_len,
1419 &flags, buffer, 8 ))
1420 {
1421 INT_BARF( context, 0x21 );
1422 SET_CFLAG(context);
1423 break;
1424 }
1425 SET_BX( context, flags | 0x4000 ); /* support for LFN functions */
1426 SET_CX( context, filename_len );
1427 SET_DX( context, MAX_PATH ); /* FIXME: which len if DRIVE_SHORT_NAMES ? */
1428 }
1429 break;
1430 case 0xa1: /* Find close */
1431 TRACE("LONG FILENAME - FINDCLOSE for handle %d\n",
1432 BX_reg(context));
1433 bSetDOSExtendedError = (!FindClose16( BX_reg(context) ));
1434 break;
1435 case 0x60:
1436 switch(CL_reg(context))
1437 {
1438 case 0x01: /* Get short filename or path */
1439 if (!GetShortPathNameA
1440 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1441 context->Esi),
1442 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1443 context->Edi), 67))
1444 bSetDOSExtendedError = TRUE;
1445 else SET_AX( context, 0 );
1446 break;
1447 case 0x02: /* Get canonical long filename or path */
1448 if (!GetFullPathNameA
1449 ( CTX_SEG_OFF_TO_LIN(context, context->SegDs,
1450 context->Esi), 128,
1451 CTX_SEG_OFF_TO_LIN(context, context->SegEs,
1452 context->Edi),NULL))
1453 bSetDOSExtendedError = TRUE;
1454 else SET_AX( context, 0 );
1455 break;
1456 default:
1457 FIXME("Unimplemented long file name function:\n");
1458 INT_BARF( context, 0x21 );
1459 SET_CFLAG(context);
1460 SET_AL( context, 0 );
1461 break;
1462 }
1463 break;
1464 case 0x6c: /* Create or open file */
1465 TRACE("LONG FILENAME - CREATE OR OPEN FILE %s\n",
1466 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Esi));
1467 /* translate Dos 7 action to Dos 6 action */
1468 bSetDOSExtendedError = INT21_ExtendedOpenCreateFile(context);
1469 break;
1470
1471 case 0x3b: /* Change directory */
1472 TRACE("LONG FILENAME - CHANGE DIRECTORY %s\n",
1473 (LPCSTR)CTX_SEG_OFF_TO_LIN(context, context->SegDs, context->Edx));
1474 if (!SetCurrentDirectoryA(CTX_SEG_OFF_TO_LIN(context,
1475 context->SegDs,
1476 context->Edx
1477 ))
1478 ) {
1479 SET_CFLAG(context);
1480 SET_AL( context, GetLastError() );
1481 }
1482 break;
1483
1484 default:
1485 FIXME("Unimplemented long file name function:\n");
1486 INT_BARF( context, 0x21 );
1487 SET_CFLAG(context);
1488 SET_AL( context, 0 );
1489 break;
1490 }
1491 break;
1492
1493
1494 case 0x73: /* MULTIPLEXED: Win95 OSR2/Win98 FAT32 calls */
1495 TRACE("windows95 function AX %04x\n",
1496 AX_reg(context));
1497
1498 switch (AL_reg(context))
1499 {
1500 case 0x02: /* Get Extended Drive Parameter Block for specific drive */
1501 /* ES:DI points to word with length of data (should be 0x3d) */
1502 {
1503 WORD *buffer;
1504 struct EDPB *edpb;
1505 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
1506 char root[] = "A:\\";
1507
1508 buffer = (WORD *)CTX_SEG_OFF_TO_LIN(context, context->SegEs, context->Edi);
1509
1510 TRACE("Get Extended DPB: linear buffer address is %p\n", buffer);
1511
1512 /* validate passed-in buffer lengths */
1513 if ((*buffer != 0x3d) || (context->Ecx != 0x3f))
1514 {
1515 WARN("Get Extended DPB: buffer lengths incorrect\n");
1516 WARN("CX = %lx, buffer[0] = %x\n", context->Ecx, *buffer);
1517 SET_CFLAG(context);
1518 SET_AL( context, 0x18 ); /* bad buffer length */
1519 }
1520
1521 /* buffer checks out */
1522 buffer++; /* skip over length word now */
1523 if (FillInDrivePB( DX_reg(context) ) )
1524 {
1525 edpb = (struct EDPB *)buffer;
1526
1527 /* copy down the old-style DPB portion first */
1528 memcpy(&edpb->dpb, &heap->dpb, sizeof(struct DPB));
1529
1530 /* now fill in the extended entries */
1531 edpb->edpb_flags = 0;
1532 edpb->next_edpb = 0;
1533 edpb->free_cluster = edpb->free_cluster2 = 0;
1534
1535 /* determine free disk space */
1536 *root += DOS_GET_DRIVE( DX_reg(context) );
1537 GetDiskFreeSpaceA( root, &cluster_sectors, &sector_bytes,
1538 &free_clusters, &total_clusters );
1539
1540 edpb->clusters_free = (free_clusters&0xffff);
1541
1542 edpb->clusters_free_hi = free_clusters >> 16;
1543 edpb->mirroring_flags = 0;
1544 edpb->info_sector = 0xffff;
1545 edpb->spare_boot_sector = 0xffff;
1546 edpb->first_cluster = 0;
1547 edpb->max_cluster = total_clusters;
1548 edpb->fat_clusters = 32; /* made-up value */
1549 edpb->root_cluster = 0;
1550
1551 RESET_CFLAG(context); /* clear carry */
1552 SET_AX( context, 0 );
1553 }
1554 else
1555 {
1556 SET_AX( context, 0x00ff );
1557 SET_CFLAG(context);
1558 }
1559 }
1560 break;
1561
1562 case 0x03: /* Get Extended free space on drive */
1563 case 0x04: /* Set DPB for formatting */
1564 case 0x05: /* extended absolute disk read/write */
1565 FIXME("Unimplemented FAT32 int32 function %04x\n", AX_reg(context));
1566 SET_CFLAG(context);
1567 SET_AL( context, 0 );
1568 break;
1569 }
1570
1571 break;
1572
1573 default:
1574 INT_BARF( context, 0x21 );
1575 break;
1576
1577 } /* END OF SWITCH */
1578
1579 if( bSetDOSExtendedError ) /* set general error condition */
1580 {
1581 SET_AX( context, GetLastError() );
1582 SET_CFLAG(context);
1583 }
1584 }
Quick hack tree for wine patches julliard doesn't want to commit