Release 970202
[wine/multimedia.git] / msdos / int21.c
blob79c0d8748624e5f6553ccdce200cc73ac2770f44
1 /*
2 * DOS interrupt 21h handler
3 */
5 #include <time.h>
6 #include <fcntl.h>
7 #include <errno.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <sys/file.h>
11 #include <string.h>
12 #include <sys/stat.h>
13 #include <sys/time.h>
14 #include <sys/types.h>
15 #include <unistd.h>
16 #include <utime.h>
17 #include <ctype.h>
18 #include "windows.h"
19 #include "drive.h"
20 #include "file.h"
21 #include "heap.h"
22 #include "msdos.h"
23 #include "ldt.h"
24 #include "task.h"
25 #include "options.h"
26 #include "miscemu.h"
27 #include "xmalloc.h"
28 #include "stddebug.h"
29 #include "debug.h"
30 #if defined(__svr4__) || defined(_SCO_DS)
31 /* SVR4 DOESNT do locking the same way must implement properly */
32 #define LOCK_EX 0
33 #define LOCK_SH 1
34 #define LOCK_NB 8
35 #endif
38 #define DOS_GET_DRIVE(reg) ((reg) ? (reg) - 1 : DRIVE_GetCurrentDrive())
40 /* Define the drive parameter block, as used by int21/1F
41 * and int21/32. This table can be accessed through the
42 * global 'dpb' pointer, which points into the local dos
43 * heap.
45 struct DPB
47 BYTE drive_num; /* 0=A, etc. */
48 BYTE unit_num; /* Drive's unit number (?) */
49 WORD sector_size; /* Sector size in bytes */
50 BYTE high_sector; /* Highest sector in a cluster */
51 BYTE shift; /* Shift count (?) */
52 WORD reserved; /* Number of reserved sectors at start */
53 BYTE num_FAT; /* Number of FATs */
54 WORD dir_entries; /* Number of root dir entries */
55 WORD first_data; /* First data sector */
56 WORD high_cluster; /* Highest cluster number */
57 WORD sectors_in_FAT; /* Number of sectors per FAT */
58 WORD start_dir; /* Starting sector of first dir */
59 DWORD driver_head; /* Address of device driver header (?) */
60 BYTE media_ID; /* Media ID */
61 BYTE access_flag; /* Prev. accessed flag (0=yes,0xFF=no) */
62 DWORD next; /* Pointer to next DPB in list */
63 WORD free_search; /* Free cluster search start */
64 WORD free_clusters; /* Number of free clusters (0xFFFF=unknown) */
67 WORD CodePage = 437;
68 DWORD dpbsegptr;
70 struct DosHeap {
71 BYTE InDosFlag;
72 BYTE mediaID;
73 BYTE biosdate[8];
74 struct DPB dpb;
76 static struct DosHeap *heap;
77 static WORD DosHeapHandle;
79 WORD sharing_retries = 3; /* number of retries at sharing violation */
80 WORD sharing_pause = 1; /* pause between retries */
82 extern char TempDirectory[];
84 static BOOL32 INT21_CreateHeap(void)
86 if (!(DosHeapHandle = GlobalAlloc16(GMEM_FIXED,sizeof(struct DosHeap))))
88 fprintf( stderr, "INT21_Init: Out of memory\n");
89 return FALSE;
91 heap = (struct DosHeap *) GlobalLock16(DosHeapHandle);
92 dpbsegptr = PTR_SEG_OFF_TO_SEGPTR(DosHeapHandle,(int)&heap->dpb-(int)heap);
93 heap->InDosFlag = 0;
94 strcpy(heap->biosdate, "01/01/80");
95 return TRUE;
98 BYTE *GetCurrentDTA(void)
100 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
101 return (BYTE *)PTR_SEG_TO_LIN( pTask->dta );
105 void ChopOffWhiteSpace(char *string)
107 int length;
109 for (length = strlen(string) ; length ; length--)
110 if (string[length] == ' ')
111 string[length] = '\0';
114 void CreateBPB(int drive, BYTE *data)
116 if (drive > 1) {
117 setword(data, 512);
118 data[2] = 2;
119 setword(&data[3], 0);
120 data[5] = 2;
121 setword(&data[6], 240);
122 setword(&data[8], 64000);
123 data[0x0a] = 0xf8;
124 setword(&data[0x0b], 40);
125 setword(&data[0x0d], 56);
126 setword(&data[0x0f], 2);
127 setword(&data[0x11], 0);
128 setword(&data[0x1f], 800);
129 data[0x21] = 5;
130 setword(&data[0x22], 1);
131 } else { /* 1.44mb */
132 setword(data, 512);
133 data[2] = 2;
134 setword(&data[3], 0);
135 data[5] = 2;
136 setword(&data[6], 240);
137 setword(&data[8], 2880);
138 data[0x0a] = 0xf8;
139 setword(&data[0x0b], 6);
140 setword(&data[0x0d], 18);
141 setword(&data[0x0f], 2);
142 setword(&data[0x11], 0);
143 setword(&data[0x1f], 80);
144 data[0x21] = 7;
145 setword(&data[0x22], 2);
149 static int INT21_GetFreeDiskSpace( CONTEXT *context )
151 DWORD cluster_sectors, sector_bytes, free_clusters, total_clusters;
152 char root[] = "A:\\";
154 *root += DOS_GET_DRIVE( DL_reg(context) );
155 if (!GetDiskFreeSpace32A( root, &cluster_sectors, &sector_bytes,
156 &free_clusters, &total_clusters )) return 0;
157 AX_reg(context) = cluster_sectors;
158 BX_reg(context) = free_clusters;
159 CX_reg(context) = sector_bytes;
160 DX_reg(context) = total_clusters;
161 return 1;
164 static int INT21_GetDriveAllocInfo( CONTEXT *context )
166 if (!INT21_GetFreeDiskSpace( context )) return 0;
167 if (!heap && !INT21_CreateHeap()) return 0;
168 heap->mediaID = 0xf0;
169 DS_reg(context) = DosHeapHandle;
170 BX_reg(context) = (int)&heap->mediaID - (int)heap;
171 return 1;
174 static void GetDrivePB( CONTEXT *context, int drive )
176 if(!DRIVE_IsValid(drive))
178 DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
179 AX_reg(context) = 0x00ff;
181 else if (heap || INT21_CreateHeap())
183 dprintf_int(stddeb, "int21: GetDrivePB not fully implemented.\n");
185 /* FIXME: I have no idea what a lot of this information should
186 * say or whether it even really matters since we're not allowing
187 * direct block access. However, some programs seem to depend on
188 * getting at least _something_ back from here. The 'next' pointer
189 * does worry me, though. Should we have a complete table of
190 * separate DPBs per drive? Probably, but I'm lazy. :-) -CH
192 heap->dpb.drive_num = heap->dpb.unit_num = drive; /*The same?*/
193 heap->dpb.sector_size = 512;
194 heap->dpb.high_sector = 1;
195 heap->dpb.shift = drive < 2 ? 0 : 6; /*6 for HD, 0 for floppy*/
196 heap->dpb.reserved = 0;
197 heap->dpb.num_FAT = 1;
198 heap->dpb.dir_entries = 2;
199 heap->dpb.first_data = 2;
200 heap->dpb.high_cluster = 64000;
201 heap->dpb.sectors_in_FAT = 1;
202 heap->dpb.start_dir = 1;
203 heap->dpb.driver_head = 0;
204 heap->dpb.media_ID = (drive > 1) ? 0xF8 : 0xF0;
205 heap->dpb.access_flag = 0;
206 heap->dpb.next = 0;
207 heap->dpb.free_search = 0;
208 heap->dpb.free_clusters = 0xFFFF; /* unknown */
210 AL_reg(context) = 0x00;
211 DS_reg(context) = SELECTOROF(dpbsegptr);
212 BX_reg(context) = OFFSETOF(dpbsegptr);
217 static void ioctlGetDeviceInfo( CONTEXT *context )
219 dprintf_int (stddeb, "int21: ioctl (%d, GetDeviceInfo)\n", BX_reg(context));
221 DX_reg(context) = 0x0942;
222 /* bits 0-5 are current drive
223 * bit 6 - file has NOT been written..FIXME: correct?
224 * bit 8 - generate int24 if no diskspace on write/ read past end of file
225 * bit 11 - media not removable
227 RESET_CFLAG(context);
230 static void ioctlGenericBlkDevReq( CONTEXT *context )
232 BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
233 int drive = DOS_GET_DRIVE( BL_reg(context) );
235 if (!DRIVE_IsValid(drive))
237 DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
238 AX_reg(context) = DOS_ExtendedError;
239 SET_CFLAG(context);
240 return;
243 if (CH_reg(context) != 0x08)
245 INT_BARF( context, 0x21 );
246 return;
248 switch (CL_reg(context)) {
249 case 0x4a: /* lock logical volume */
250 dprintf_int(stddeb,"int21: lock logical volume (%d) level %d mode %d\n",drive,BH_reg(context),DX_reg(context));
251 return;
252 case 0x60: /* get device parameters */
253 /* used by w4wgrp's winfile */
254 memset(dataptr, 0, 0x26);
255 dataptr[0] = 0x04;
256 dataptr[6] = 0; /* media type */
257 if (drive > 1)
259 dataptr[1] = 0x05; /* fixed disk */
260 setword(&dataptr[2], 0x01); /* non removable */
261 setword(&dataptr[4], 0x300); /* # of cylinders */
263 else
265 dataptr[1] = 0x07; /* block dev, floppy */
266 setword(&dataptr[2], 0x02); /* removable */
267 setword(&dataptr[4], 80); /* # of cylinders */
269 CreateBPB(drive, &dataptr[7]);
270 RESET_CFLAG(context);
271 return;
272 case 0x66:/* get disk serial number */
273 { char label[12],fsname[9],path[4];
274 DWORD serial;
276 strcpy(path,"x:\\");path[0]=drive+'A';
277 GetVolumeInformation32A(
278 path,label,12,&serial,NULL,NULL,fsname,9
280 *(WORD*)dataptr = 0;
281 memcpy(dataptr+2,&serial,4);
282 memcpy(dataptr+6,label ,11);
283 memcpy(dataptr+17,fsname,8);
284 return;
286 case 0x6a:
287 dprintf_int(stddeb,"int21: logical volume %d unlocked.\n",drive);
288 return;
289 default:
290 INT_BARF( context, 0x21 );
294 static void INT21_GetSystemDate( CONTEXT *context )
296 SYSTEMTIME systime;
297 GetLocalTime( &systime );
298 CX_reg(context) = systime.wYear;
299 DX_reg(context) = (systime.wMonth << 8) | systime.wDay;
300 AX_reg(context) = systime.wDayOfWeek;
303 static void INT21_GetSystemTime( CONTEXT *context )
305 SYSTEMTIME systime;
306 GetLocalTime( &systime );
307 CX_reg(context) = (systime.wHour << 8) | systime.wMinute;
308 DX_reg(context) = (systime.wSecond << 8) | (systime.wMilliseconds / 10);
311 static void INT21_CreateFile( CONTEXT *context )
313 AX_reg(context) = _lcreat16( PTR_SEG_OFF_TO_LIN( DS_reg(context),
314 DX_reg(context) ), CX_reg(context) );
315 if (AX_reg(context) == (WORD)HFILE_ERROR16)
317 AX_reg(context) = DOS_ExtendedError;
318 SET_CFLAG(context);
323 void OpenExistingFile( CONTEXT *context )
325 AX_reg(context) = _lopen16( PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)),
326 AL_reg(context) );
327 if (AX_reg(context) == (WORD)HFILE_ERROR16)
329 AX_reg(context) = DOS_ExtendedError;
330 SET_CFLAG(context);
332 #if 0
333 int handle;
334 int mode;
335 int lock;
337 switch (AX_reg(context) & 0x0070)
339 case 0x00: /* compatability mode */
340 case 0x40: /* DENYNONE */
341 lock = -1;
342 break;
344 case 0x30: /* DENYREAD */
345 dprintf_int(stddeb,
346 "OpenExistingFile (%s): DENYREAD changed to DENYALL\n",
347 (char *)PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)));
348 case 0x10: /* DENYALL */
349 lock = LOCK_EX;
350 break;
352 case 0x20: /* DENYWRITE */
353 lock = LOCK_SH;
354 break;
356 default:
357 lock = -1;
360 if (lock != -1)
363 int result,retries=sharing_retries;
365 #if defined(__svr4__) || defined(_SCO_DS)
366 printf("Should call flock and needs porting to lockf\n");
367 result = 0;
368 retries = 0;
369 #else
370 result = flock(handle, lock | LOCK_NB);
371 #endif
372 if ( retries && (!result) )
374 int i;
375 for(i=0;i<32768*((int)sharing_pause);i++)
376 result++; /* stop the optimizer */
377 for(i=0;i<32768*((int)sharing_pause);i++)
378 result--;
381 while( (!result) && (!(retries--)) );
383 if(result)
385 errno_to_doserr();
386 AX_reg(context) = ExtendedError;
387 close(handle);
388 SET_CFLAG(context);
389 return;
394 Error (0,0,0);
395 AX_reg(context) = handle;
396 RESET_CFLAG(context);
397 #endif
400 static void CloseFile( CONTEXT *context )
402 if ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0)
404 AX_reg(context) = DOS_ExtendedError;
405 SET_CFLAG(context);
409 void ExtendedOpenCreateFile(CONTEXT *context )
411 BYTE action=DL_reg(context);
412 /* Shuffle arguments to call OpenExistingFile */
413 AL_reg(context) = BL_reg(context);
414 DX_reg(context) = SI_reg(context);
415 /* BX,CX and DX should be preserved */
416 OpenExistingFile(context);
417 if ((EFL_reg(context) & 0x0001)==0)
418 { /* It exists */
419 /* Now decide what do do */
420 if ((action & 0x07)== 0)
422 BX_reg(context) = AX_reg(context);
423 CloseFile(context);
424 AX_reg(context) = 0x0050;/*File exists*/
425 CX_reg(context) = 0;
426 SET_CFLAG(context);
427 dprintf_int(stddeb, "int21: extended open/create: failed because file exixts \n");
428 return;
430 if ((action & 0x07)== 2) {
431 /* Truncate it, but first check if opend for write */
432 if ((BL_reg(context) & 0x0007)== 0) {
433 BX_reg(context) = AX_reg(context);
434 CloseFile(context);
435 dprintf_int(stddeb, "int21: extended open/create: failed, trunc on ro file");
436 AX_reg(context) = 0x000C;/*Access code invalid*/
437 CX_reg(context) = 0;
438 SET_CFLAG(context);
439 return;
441 /* Shuffle arguments to call CloseFile */
442 dprintf_int(stddeb, "int21: extended open/create: Closing before truncate\n");
443 BX_reg(context) = AX_reg(context);
444 /* BX and DX should be preserved */
445 CloseFile(context);
446 if (EFL_reg(context) & 0x0001) {
447 dprintf_int(stddeb, "int21: extended open/create: close before trunc failed");
448 AX_reg(context) = 0x0019;/*Seek Error*/
449 CX_reg(context) = 0;
450 SET_CFLAG(context);
452 /* Shuffle arguments to call CreateFile */
453 dprintf_int(stddeb, "int21: extended open/create: Truncating\n");
454 AL_reg(context) = BL_reg(context);
455 /* CX is still the same */
456 DX_reg(context) = SI_reg(context);
457 INT21_CreateFile(context);
458 if (EFL_reg(context) & 0x0001) { /*no file open, flags set */
459 dprintf_int(stddeb, "int21: extended open/create: truncfailed");
460 return;
462 CX_reg(context) = 3;
463 return;
465 CX_reg(context) = 1;
466 return;
468 else /* file does not exist */
470 RESET_CFLAG(context); /* was set by OpenExistingFile(context) */
471 if ((action & 0xF0)== 0)
473 CX_reg(context) = 0;
474 SET_CFLAG(context);
475 dprintf_int(stddeb, "int21: extended open/create: failed, file dosen't exist\n");
476 return;
478 /* Shuffle arguments to call CreateFile */
479 dprintf_int(stddeb, "int21: extended open/create: Creating\n");
480 AL_reg(context) = BL_reg(context);
481 /* CX should still be the same */
482 DX_reg(context) = SI_reg(context);
483 INT21_CreateFile(context);
484 if (EFL_reg(context) & 0x0001) { /*no file open, flags set */
485 dprintf_int(stddeb, "int21: extended open/create: create failed\n");
486 return;
488 CX_reg(context) = 2;
489 return;
494 static void INT21_ChangeDir( CONTEXT *context )
496 int drive;
497 char *dirname = PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context));
499 dprintf_int(stddeb,"int21: changedir %s\n", dirname);
500 if (dirname[0] && (dirname[1] == ':'))
502 drive = toupper(dirname[0]) - 'A';
503 dirname += 2;
505 else drive = DRIVE_GetCurrentDrive();
506 if (!DRIVE_Chdir( drive, dirname ))
508 AX_reg(context) = DOS_ExtendedError;
509 SET_CFLAG(context);
514 static int INT21_FindFirst( CONTEXT *context )
516 char *p;
517 const char *path;
518 DOS_FULL_NAME full_name;
519 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA();
521 path = (const char *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
522 dta->unixPath = NULL;
523 if (!DOSFS_GetFullName( path, FALSE, &full_name ))
525 AX_reg(context) = DOS_ExtendedError;
526 SET_CFLAG(context);
527 return 0;
529 dta->unixPath = xstrdup( full_name.long_name );
530 p = strrchr( dta->unixPath, '/' );
531 *p = '\0';
533 /* Note: terminating NULL in dta->mask overwrites dta->search_attr
534 * (doesn't matter as it is set below anyway)
536 if (!DOSFS_ToDosFCBFormat( p + 1, dta->mask ))
538 free( dta->unixPath );
539 dta->unixPath = NULL;
540 DOS_ERROR( ER_FileNotFound, EC_NotFound, SA_Abort, EL_Disk );
541 AX_reg(context) = ER_FileNotFound;
542 SET_CFLAG(context);
543 return 0;
545 dta->drive = (path[0] && (path[1] == ':')) ? toupper(path[0]) - 'A'
546 : DRIVE_GetCurrentDrive();
547 dta->count = 0;
548 dta->search_attr = CL_reg(context);
549 return 1;
553 static int INT21_FindNext( CONTEXT *context )
555 FINDFILE_DTA *dta = (FINDFILE_DTA *)GetCurrentDTA();
556 WIN32_FIND_DATA32A entry;
557 int count;
559 if (!dta->unixPath) return 0;
560 if (!(count = DOSFS_FindNext( dta->unixPath, dta->mask, NULL, dta->drive,
561 dta->search_attr, dta->count, &entry )))
563 free( dta->unixPath );
564 dta->unixPath = NULL;
565 return 0;
567 if ((int)dta->count + count > 0xffff)
569 fprintf( stderr, "Too many directory entries in %s\n", dta->unixPath );
570 free( dta->unixPath );
571 dta->unixPath = NULL;
572 return 0;
574 dta->count += count;
575 dta->fileattr = entry.dwFileAttributes;
576 dta->filesize = entry.nFileSizeLow;
577 FileTimeToDosDateTime( &entry.ftLastWriteTime,
578 &dta->filedate, &dta->filetime );
579 strcpy( dta->filename, entry.cAlternateFileName );
580 return 1;
584 static int INT21_CreateTempFile( CONTEXT *context )
586 static int counter = 0;
587 char *name = PTR_SEG_OFF_TO_LIN( DS_reg(context), DX_reg(context) );
588 char *p = name + strlen(name);
590 for (;;)
592 sprintf( p, "wine%04x.%03d", (int)getpid(), counter );
593 counter = (counter + 1) % 1000;
595 if ((AX_reg(context) = _lcreat_uniq( name, 0 )) != (WORD)HFILE_ERROR16)
597 dprintf_int( stddeb, "INT21_CreateTempFile: created %s\n", name );
598 return 1;
600 if (DOS_ExtendedError != ER_FileExists) return 0;
605 static int INT21_GetCurrentDirectory( CONTEXT *context )
607 int drive = DOS_GET_DRIVE( DL_reg(context) );
608 char *ptr = (char *)PTR_SEG_OFF_TO_LIN( DS_reg(context), SI_reg(context) );
610 if (!DRIVE_IsValid(drive))
612 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
613 return 0;
616 lstrcpyn32A( ptr, DRIVE_GetDosCwd(drive), 64 );
617 return 1;
621 static int INT21_GetDiskSerialNumber( CONTEXT *context )
623 BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
624 int drive = DOS_GET_DRIVE( BL_reg(context) );
626 if (!DRIVE_IsValid(drive))
628 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
629 return 0;
632 *(WORD *)dataptr = 0;
633 *(DWORD *)(dataptr + 2) = DRIVE_GetSerialNumber( drive );
634 memcpy( dataptr + 6, DRIVE_GetLabel( drive ), 11 );
635 strncpy(dataptr + 0x11, "FAT16 ", 8);
636 return 1;
640 static int INT21_SetDiskSerialNumber( CONTEXT *context )
642 BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
643 int drive = DOS_GET_DRIVE( BL_reg(context) );
645 if (!DRIVE_IsValid(drive))
647 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
648 return 0;
651 DRIVE_SetSerialNumber( drive, *(DWORD *)(dataptr + 2) );
652 return 1;
656 /* microsoft's programmers should be shot for using CP/M style int21
657 calls in Windows for Workgroup's winfile.exe */
659 static int INT21_FindFirstFCB( CONTEXT *context )
661 BYTE *fcb = (BYTE *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
662 FINDFILE_FCB *pFCB;
663 LPCSTR root, cwd;
664 int drive;
666 if (*fcb == 0xff) pFCB = (FINDFILE_FCB *)(fcb + 7);
667 else pFCB = (FINDFILE_FCB *)fcb;
668 drive = DOS_GET_DRIVE( pFCB->drive );
669 root = DRIVE_GetRoot( drive );
670 cwd = DRIVE_GetUnixCwd( drive );
671 pFCB->unixPath = HeapAlloc( SystemHeap, 0, strlen(root)+strlen(cwd)+2 );
672 if (!pFCB->unixPath) return 0;
673 strcpy( pFCB->unixPath, root );
674 strcat( pFCB->unixPath, "/" );
675 strcat( pFCB->unixPath, cwd );
676 pFCB->count = 0;
677 return 1;
681 static int INT21_FindNextFCB( CONTEXT *context )
683 BYTE *fcb = (BYTE *)PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
684 FINDFILE_FCB *pFCB;
685 DOS_DIRENTRY_LAYOUT *pResult = (DOS_DIRENTRY_LAYOUT *)GetCurrentDTA();
686 WIN32_FIND_DATA32A entry;
687 BYTE attr;
688 int count;
690 if (*fcb == 0xff)
692 attr = fcb[6];
693 pFCB = (FINDFILE_FCB *)(fcb + 7);
695 else
697 attr = 0;
698 pFCB = (FINDFILE_FCB *)fcb;
701 if (!pFCB->unixPath) return 0;
702 if (!(count = DOSFS_FindNext( pFCB->unixPath, pFCB->filename, NULL,
703 DOS_GET_DRIVE( pFCB->drive ), attr,
704 pFCB->count, &entry )))
706 HeapFree( SystemHeap, 0, pFCB->unixPath );
707 pFCB->unixPath = NULL;
708 return 0;
710 pFCB->count += count;
712 pResult->fileattr = entry.dwFileAttributes;
713 pResult->cluster = 0; /* what else? */
714 pResult->filesize = entry.nFileSizeLow;
715 memset( pResult->reserved, 0, sizeof(pResult->reserved) );
716 FileTimeToDosDateTime( &entry.ftLastWriteTime,
717 &pResult->filedate, &pResult->filetime );
719 /* Convert file name to FCB format */
721 memset( pResult->filename, ' ', sizeof(pResult->filename) );
722 if (!strcmp( entry.cAlternateFileName, "." )) pResult->filename[0] = '.';
723 else if (!strcmp( entry.cAlternateFileName, ".." ))
724 pResult->filename[0] = pResult->filename[1] = '.';
725 else
727 char *p = strrchr( entry.cAlternateFileName, '.' );
728 if (p && p[1] && (p != entry.cAlternateFileName))
730 memcpy( pResult->filename, entry.cAlternateFileName,
731 MIN( (p - entry.cAlternateFileName), 8 ) );
732 memcpy( pResult->filename + 8, p + 1, MIN( strlen(p), 3 ) );
734 else
735 memcpy( pResult->filename, entry.cAlternateFileName,
736 MIN( strlen(entry.cAlternateFileName), 8 ) );
738 return 1;
742 static void DeleteFileFCB( CONTEXT *context )
744 fprintf( stderr, "DeleteFileFCB: not implemented yet\n" );
745 #if 0
746 BYTE *fcb = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
747 struct dosdirent *dp;
748 char temp[256], *ptr;
749 int drive = DOS_GET_DRIVE( *fcb );
751 DumpFCB( fcb );
753 temp[0] = '\\';
754 strcpy(temp+1, DRIVE_GetDosCwd(drive));
755 strcat(temp, "\\");
756 strncat(temp, fcb + 1, 8);
757 ChopOffWhiteSpace(temp);
758 strncat(temp, fcb + 9, 3);
759 ChopOffWhiteSpace(temp);
761 if ((dp = DOS_opendir(temp)) == NULL) {
762 Error(InvalidDrive, EC_MediaError , EL_Disk);
763 AX_reg(context) = 0xff;
764 return;
767 temp[0] = '\\';
768 strcpy(temp+1, DRIVE_GetDosCwd(drive) );
769 strcat(temp, "\\");
771 ptr = temp + strlen(temp);
773 while (DOS_readdir(dp) != NULL)
775 strcpy(ptr, dp->filename);
776 dprintf_int(stddeb, "int21: delete file %s\n", temp);
777 /* unlink(DOS_GetUnixFileName(temp)); */
779 DOS_closedir(dp);
780 AX_reg(context) = 0;
781 #endif
784 static void RenameFileFCB( CONTEXT *context )
786 fprintf( stderr, "RenameFileFCB: not implemented yet\n" );
787 #if 0
788 BYTE *fcb = PTR_SEG_OFF_TO_LIN(DS_reg(context), DX_reg(context));
789 struct dosdirent *dp;
790 char temp[256], oldname[256], newname[256], *oldnameptr, *newnameptr;
791 int drive = DOS_GET_DRIVE( *fcb );
793 DumpFCB( fcb );
795 temp[0] = '\\';
796 strcpy(temp+1, DRIVE_GetDosCwd(drive) );
797 strcat(temp, "\\");
798 strncat(temp, fcb + 1, 8);
799 ChopOffWhiteSpace(temp);
800 strncat(temp, fcb + 9, 3);
801 ChopOffWhiteSpace(temp);
803 if ((dp = DOS_opendir(temp)) == NULL) {
804 Error(InvalidDrive, EC_MediaError , EL_Disk);
805 AX_reg(context) = 0xff;
806 return;
809 oldname[0] = '\\';
810 strcpy(oldname+1, DRIVE_GetDosCwd(drive) );
811 strcat(oldname, "\\");
812 strcpy( newname, oldname );
813 oldnameptr = oldname + strlen(oldname);
814 newnameptr = newname + strlen(newname);
816 while (DOS_readdir(dp) != NULL)
818 strcpy(oldnameptr, dp->filename);
819 strcpy(newnameptr, fcb + 1);
820 dprintf_int(stddeb, "int21: renamefile %s -> %s\n",
821 oldname, newname);
823 DOS_closedir(dp);
824 AX_reg(context) = 0;
825 #endif
830 static void fLock( CONTEXT * context )
832 #if 0
833 struct flock f;
834 int result,retries=sharing_retries;
836 f.l_start = MAKELONG(DX_reg(context),CX_reg(context));
837 f.l_len = MAKELONG(DI_reg(context),SI_reg(context));
838 f.l_whence = 0;
839 f.l_pid = 0;
841 switch ( AX_reg(context) & 0xff )
843 case 0x00: /* LOCK */
844 f.l_type = F_WRLCK;
845 break;
847 case 0x01: /* UNLOCK */
848 f.l_type = F_UNLCK;
849 break;
851 default:
852 AX_reg(context) = 0x0001;
853 SET_CFLAG(context);
854 return;
858 result = fcntl(BX_reg(context),F_SETLK,&f);
859 if ( retries && (!result) )
861 int i;
862 for(i=0;i<32768*((int)sharing_pause);i++)
863 result++; /* stop the optimizer */
864 for(i=0;i<32768*((int)sharing_pause);i++)
865 result--;
868 while( (!result) && (!(retries--)) );
870 if(result)
872 FILE_SetDosError();
873 AX_reg(context) = DOS_ExtendedError;
874 SET_CFLAG(context);
875 return;
877 #endif
881 extern void LOCAL_PrintHeap (WORD ds);
883 /***********************************************************************
884 * DOS3Call (KERNEL.102)
886 void DOS3Call( CONTEXT *context )
888 dprintf_int( stddeb, "int21: AX=%04x BX=%04x CX=%04x DX=%04x "
889 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
890 AX_reg(context), BX_reg(context), CX_reg(context),
891 DX_reg(context), SI_reg(context), DI_reg(context),
892 (WORD)DS_reg(context), (WORD)ES_reg(context),
893 EFL_reg(context) );
895 if (AH_reg(context) == 0x59) /* Get extended error info */
897 AX_reg(context) = DOS_ExtendedError;
898 BH_reg(context) = DOS_ErrorClass;
899 BL_reg(context) = DOS_ErrorAction;
900 CH_reg(context) = DOS_ErrorLocus;
901 return;
904 DOS_ERROR( 0, 0, 0, 0 );
905 RESET_CFLAG(context); /* Not sure if this is a good idea */
907 switch(AH_reg(context))
909 case 0x00: /* TERMINATE PROGRAM */
910 TASK_KillCurrentTask( 0 );
911 break;
913 case 0x01: /* READ CHARACTER FROM STANDARD INPUT, WITH ECHO */
914 case 0x02: /* WRITE CHARACTER TO STANDARD OUTPUT */
915 case 0x03: /* READ CHARACTER FROM STDAUX */
916 case 0x04: /* WRITE CHARACTER TO STDAUX */
917 case 0x05: /* WRITE CHARACTER TO PRINTER */
918 case 0x06: /* DIRECT CONSOLE IN/OUTPUT */
919 case 0x07: /* DIRECT CHARACTER INPUT, WITHOUT ECHO */
920 case 0x08: /* CHARACTER INPUT WITHOUT ECHO */
921 case 0x09: /* WRITE STRING TO STANDARD OUTPUT */
922 case 0x0a: /* BUFFERED INPUT */
923 case 0x0b: /* GET STDIN STATUS */
924 case 0x0c: /* FLUSH BUFFER AND READ STANDARD INPUT */
925 case 0x0f: /* OPEN FILE USING FCB */
926 case 0x10: /* CLOSE FILE USING FCB */
927 case 0x14: /* SEQUENTIAL READ FROM FCB FILE */
928 case 0x15: /* SEQUENTIAL WRITE TO FCB FILE */
929 case 0x16: /* CREATE OR TRUNCATE FILE USING FCB */
930 case 0x21: /* READ RANDOM RECORD FROM FCB FILE */
931 case 0x22: /* WRITE RANDOM RECORD TO FCB FILE */
932 case 0x23: /* GET FILE SIZE FOR FCB */
933 case 0x24: /* SET RANDOM RECORD NUMBER FOR FCB */
934 case 0x26: /* CREATE NEW PROGRAM SEGMENT PREFIX */
935 case 0x27: /* RANDOM BLOCK READ FROM FCB FILE */
936 case 0x28: /* RANDOM BLOCK WRITE TO FCB FILE */
937 case 0x29: /* PARSE FILENAME INTO FCB */
938 case 0x2e: /* SET VERIFY FLAG */
939 case 0x37: /* "SWITCHAR" - GET SWITCH CHARACTER
940 "SWITCHAR" - SET SWITCH CHARACTER
941 "AVAILDEV" - SPECIFY \DEV\ PREFIX USE */
942 case 0x54: /* GET VERIFY FLAG */
943 INT_BARF( context, 0x21 );
944 break;
946 case 0x18: /* NULL FUNCTIONS FOR CP/M COMPATIBILITY */
947 case 0x1d:
948 case 0x1e:
949 case 0x20:
950 case 0x6b: /* NULL FUNCTION */
951 AL_reg(context) = 0;
952 break;
954 case 0x5c: /* "FLOCK" - RECORD LOCKING */
955 fLock(context);
956 break;
958 case 0x0d: /* DISK BUFFER FLUSH */
959 RESET_CFLAG(context); /* dos 6+ only */
960 break;
962 case 0x0e: /* SELECT DEFAULT DRIVE */
963 DRIVE_SetCurrentDrive( DL_reg(context) );
964 AL_reg(context) = MAX_DOS_DRIVES;
965 break;
967 case 0x11: /* FIND FIRST MATCHING FILE USING FCB */
968 if (!INT21_FindFirstFCB(context))
970 AL_reg(context) = 0xff;
971 break;
973 /* else fall through */
975 case 0x12: /* FIND NEXT MATCHING FILE USING FCB */
976 AL_reg(context) = INT21_FindNextFCB(context) ? 0x00 : 0xff;
977 break;
979 case 0x13: /* DELETE FILE USING FCB */
980 DeleteFileFCB(context);
981 break;
983 case 0x17: /* RENAME FILE USING FCB */
984 RenameFileFCB(context);
985 break;
987 case 0x19: /* GET CURRENT DEFAULT DRIVE */
988 AL_reg(context) = DRIVE_GetCurrentDrive();
989 break;
991 case 0x1a: /* SET DISK TRANSFER AREA ADDRESS */
993 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
994 pTask->dta = PTR_SEG_OFF_TO_SEGPTR(DS_reg(context),DX_reg(context));
995 dprintf_int(stddeb, "int21: Set DTA: %08lx\n", pTask->dta);
997 break;
999 case 0x1b: /* GET ALLOCATION INFORMATION FOR DEFAULT DRIVE */
1000 DL_reg(context) = 0;
1001 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1002 break;
1004 case 0x1c: /* GET ALLOCATION INFORMATION FOR SPECIFIC DRIVE */
1005 if (!INT21_GetDriveAllocInfo(context)) AX_reg(context) = 0xffff;
1006 break;
1008 case 0x1f: /* GET DRIVE PARAMETER BLOCK FOR DEFAULT DRIVE */
1009 GetDrivePB(context, DRIVE_GetCurrentDrive());
1010 break;
1012 case 0x25: /* SET INTERRUPT VECTOR */
1013 INT_SetHandler( AL_reg(context),
1014 (FARPROC16)PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1015 DX_reg(context)));
1016 break;
1018 case 0x2a: /* GET SYSTEM DATE */
1019 INT21_GetSystemDate(context);
1020 break;
1022 case 0x2b: /* SET SYSTEM DATE */
1023 fprintf( stdnimp, "SetSystemDate(%02d/%02d/%04d): not allowed\n",
1024 DL_reg(context), DH_reg(context), CX_reg(context) );
1025 AL_reg(context) = 0; /* Let's pretend we succeeded */
1026 break;
1028 case 0x2c: /* GET SYSTEM TIME */
1029 INT21_GetSystemTime(context);
1030 break;
1032 case 0x2d: /* SET SYSTEM TIME */
1033 fprintf( stdnimp, "SetSystemTime(%02d:%02d:%02d.%02d): not allowed\n",
1034 CH_reg(context), CL_reg(context),
1035 DH_reg(context), DL_reg(context) );
1036 AL_reg(context) = 0; /* Let's pretend we succeeded */
1037 break;
1039 case 0x2f: /* GET DISK TRANSFER AREA ADDRESS */
1041 TDB *pTask = (TDB *)GlobalLock16( GetCurrentTask() );
1042 ES_reg(context) = SELECTOROF( pTask->dta );
1043 BX_reg(context) = OFFSETOF( pTask->dta );
1045 break;
1047 case 0x30: /* GET DOS VERSION */
1048 AX_reg(context) = DOSVERSION;
1049 BX_reg(context) = 0x0012; /* 0x123456 is Wine's serial # */
1050 CX_reg(context) = 0x3456;
1051 break;
1053 case 0x31: /* TERMINATE AND STAY RESIDENT */
1054 INT_BARF( context, 0x21 );
1055 break;
1057 case 0x32: /* GET DOS DRIVE PARAMETER BLOCK FOR SPECIFIC DRIVE */
1058 GetDrivePB(context, DOS_GET_DRIVE( DL_reg(context) ) );
1059 break;
1061 case 0x33: /* MULTIPLEXED */
1062 switch (AL_reg(context))
1064 case 0x00: /* GET CURRENT EXTENDED BREAK STATE */
1065 DL_reg(context) = 0;
1066 break;
1068 case 0x01: /* SET EXTENDED BREAK STATE */
1069 break;
1071 case 0x02: /* GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE*/
1072 DL_reg(context) = 0;
1073 break;
1075 case 0x05: /* GET BOOT DRIVE */
1076 DL_reg(context) = 2;
1077 /* c: is Wine's bootdrive */
1078 break;
1080 case 0x06: /* GET TRUE VERSION NUMBER */
1081 BX_reg(context) = DOSVERSION;
1082 DX_reg(context) = 0x00;
1083 break;
1085 default:
1086 INT_BARF( context, 0x21 );
1087 break;
1089 break;
1091 case 0x34: /* GET ADDRESS OF INDOS FLAG */
1092 if (!heap) INT21_CreateHeap();
1093 ES_reg(context) = DosHeapHandle;
1094 BX_reg(context) = (int)&heap->InDosFlag - (int)heap;
1095 break;
1097 case 0x35: /* GET INTERRUPT VECTOR */
1099 FARPROC16 addr = INT_GetHandler( AL_reg(context) );
1100 ES_reg(context) = SELECTOROF(addr);
1101 BX_reg(context) = OFFSETOF(addr);
1103 break;
1105 case 0x36: /* GET FREE DISK SPACE */
1106 if (!INT21_GetFreeDiskSpace(context)) AX_reg(context) = 0xffff;
1107 break;
1109 case 0x38: /* GET COUNTRY-SPECIFIC INFORMATION */
1110 AX_reg(context) = 0x02; /* no country support available */
1111 SET_CFLAG(context);
1112 break;
1114 case 0x39: /* "MKDIR" - CREATE SUBDIRECTORY */
1115 if (!CreateDirectory16( PTR_SEG_OFF_TO_LIN( DS_reg(context),
1116 DX_reg(context) ), NULL))
1118 AX_reg(context) = DOS_ExtendedError;
1119 SET_CFLAG(context);
1121 break;
1123 case 0x3a: /* "RMDIR" - REMOVE SUBDIRECTORY */
1124 if (!RemoveDirectory16( PTR_SEG_OFF_TO_LIN( DS_reg(context),
1125 DX_reg(context) )))
1127 AX_reg(context) = DOS_ExtendedError;
1128 SET_CFLAG(context);
1130 break;
1132 case 0x3b: /* "CHDIR" - SET CURRENT DIRECTORY */
1133 INT21_ChangeDir(context);
1134 break;
1136 case 0x3c: /* "CREAT" - CREATE OR TRUNCATE FILE */
1137 AX_reg(context) = _lcreat16( PTR_SEG_OFF_TO_LIN( DS_reg(context),
1138 DX_reg(context) ), CX_reg(context) );
1139 if (AX_reg(context) == (WORD)HFILE_ERROR16)
1141 AX_reg(context) = DOS_ExtendedError;
1142 SET_CFLAG(context);
1144 break;
1146 case 0x3d: /* "OPEN" - OPEN EXISTING FILE */
1147 OpenExistingFile(context);
1148 break;
1150 case 0x3e: /* "CLOSE" - CLOSE FILE */
1151 if ((AX_reg(context) = _lclose16( BX_reg(context) )) != 0)
1153 AX_reg(context) = DOS_ExtendedError;
1154 SET_CFLAG(context);
1156 break;
1158 case 0x3f: /* "READ" - READ FROM FILE OR DEVICE */
1160 LONG result = WIN16_hread( BX_reg(context),
1161 PTR_SEG_OFF_TO_SEGPTR( DS_reg(context),
1162 DX_reg(context) ),
1163 CX_reg(context) );
1164 if (result == -1)
1166 AX_reg(context) = DOS_ExtendedError;
1167 SET_CFLAG(context);
1169 else AX_reg(context) = (WORD)result;
1171 break;
1173 case 0x40: /* "WRITE" - WRITE TO FILE OR DEVICE */
1175 LONG result = _hwrite16( BX_reg(context),
1176 PTR_SEG_OFF_TO_LIN( DS_reg(context),
1177 DX_reg(context) ),
1178 CX_reg(context) );
1179 if (result == -1)
1181 AX_reg(context) = DOS_ExtendedError;
1182 SET_CFLAG(context);
1184 else AX_reg(context) = (WORD)result;
1186 break;
1188 case 0x41: /* "UNLINK" - DELETE FILE */
1189 if (!DeleteFile32A( PTR_SEG_OFF_TO_LIN( DS_reg(context),
1190 DX_reg(context) )))
1192 AX_reg(context) = DOS_ExtendedError;
1193 SET_CFLAG(context);
1195 break;
1197 case 0x42: /* "LSEEK" - SET CURRENT FILE POSITION */
1199 LONG status = _llseek16( BX_reg(context),
1200 MAKELONG(DX_reg(context),CX_reg(context)),
1201 AL_reg(context) );
1202 if (status == -1)
1204 AX_reg(context) = DOS_ExtendedError;
1205 SET_CFLAG(context);
1206 break;
1208 AX_reg(context) = LOWORD(status);
1209 DX_reg(context) = HIWORD(status);
1211 break;
1213 case 0x43: /* FILE ATTRIBUTES */
1214 switch (AL_reg(context))
1216 case 0x00:
1217 AX_reg(context) = (WORD)GetFileAttributes32A(
1218 PTR_SEG_OFF_TO_LIN(DS_reg(context),
1219 DX_reg(context)));
1220 if (AX_reg(context) == 0xffff)
1222 AX_reg(context) = DOS_ExtendedError;
1223 SET_CFLAG(context);
1225 else CX_reg(context) = AX_reg(context);
1226 break;
1227 case 0x01:
1228 if (!SetFileAttributes32A( PTR_SEG_OFF_TO_LIN(DS_reg(context),
1229 DX_reg(context)),
1230 CX_reg(context) ))
1232 AX_reg(context) = DOS_ExtendedError;
1233 SET_CFLAG(context);
1235 break;
1237 break;
1239 case 0x44: /* IOCTL */
1240 switch (AL_reg(context))
1242 case 0x00:
1243 ioctlGetDeviceInfo(context);
1244 break;
1246 case 0x01:
1247 break;
1248 case 0x05:{ /* IOCTL - WRITE TO BLOCK DEVICE CONTROL CHANNEL */
1249 BYTE *dataptr = PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context));
1250 int i;
1251 int drive = DOS_GET_DRIVE(BL_reg(context));
1253 fprintf(stdnimp,"int21: program tried to write to block device control channel of drive %d:\n",drive);
1254 for (i=0;i<CX_reg(context);i++)
1255 fprintf(stdnimp,"%02x ",dataptr[i]);
1256 fprintf(stdnimp,"\n");
1257 AX_reg(context)=CX_reg(context);
1258 break;
1260 case 0x08: /* Check if drive is removable. */
1261 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1263 case DRIVE_CANNOTDETERMINE:
1264 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
1265 AX_reg(context) = ER_InvalidDrive;
1266 SET_CFLAG(context);
1267 break;
1268 case DRIVE_REMOVABLE:
1269 AX_reg(context) = 0; /* removable */
1270 break;
1271 default:
1272 AX_reg(context) = 1; /* not removable */
1273 break;
1275 break;
1277 case 0x09: /* CHECK IF BLOCK DEVICE REMOTE */
1278 switch(GetDriveType16( DOS_GET_DRIVE( BL_reg(context) )))
1280 case DRIVE_CANNOTDETERMINE:
1281 DOS_ERROR( ER_InvalidDrive, EC_NotFound, SA_Abort, EL_Disk );
1282 AX_reg(context) = ER_InvalidDrive;
1283 SET_CFLAG(context);
1284 break;
1285 case DRIVE_REMOTE:
1286 DX_reg(context) = (1<<9) | (1<<12); /* remote */
1287 break;
1288 default:
1289 DX_reg(context) = 0; /* FIXME: use driver attr here */
1290 break;
1292 break;
1294 case 0x0a: /* check if handle (BX) is remote */
1295 /* returns DX, bit 15 set if remote, bit 14 set if date/time
1296 * not set on close
1298 DX_reg(context) = 0;
1299 break;
1301 case 0x0b: /* SET SHARING RETRY COUNT */
1302 if (!CX_reg(context))
1304 AX_reg(context) = 1;
1305 SET_CFLAG(context);
1306 break;
1308 sharing_pause = CX_reg(context);
1309 if (!DX_reg(context))
1310 sharing_retries = DX_reg(context);
1311 RESET_CFLAG(context);
1312 break;
1314 case 0x0d:
1315 ioctlGenericBlkDevReq(context);
1316 break;
1317 case 0x0e: /* get logical drive mapping */
1318 AL_reg(context) = 0; /* drive has no mapping */
1319 break;
1321 case 0x0F: /* Set logical drive mapping */
1322 /* FIXME: Not implemented at the moment, always returns error
1324 INT_BARF( context, 0x21 );
1325 AX_reg(context) = 0x0001; /* invalid function */
1326 SET_CFLAG(context);
1327 break;
1329 default:
1330 INT_BARF( context, 0x21 );
1331 break;
1333 break;
1335 case 0x45: /* "DUP" - DUPLICATE FILE HANDLE */
1336 if ((AX_reg(context) = FILE_Dup(BX_reg(context))) == (WORD)HFILE_ERROR16)
1338 AX_reg(context) = DOS_ExtendedError;
1339 SET_CFLAG(context);
1341 break;
1343 case 0x46: /* "DUP2", "FORCEDUP" - FORCE DUPLICATE FILE HANDLE */
1344 if (FILE_Dup2( BX_reg(context), CX_reg(context) ) == HFILE_ERROR32)
1346 AX_reg(context) = DOS_ExtendedError;
1347 SET_CFLAG(context);
1349 break;
1351 case 0x47: /* "CWD" - GET CURRENT DIRECTORY */
1352 if (!INT21_GetCurrentDirectory(context))
1354 AX_reg(context) = DOS_ExtendedError;
1355 SET_CFLAG(context);
1357 else AX_reg(context) = 0x0100;
1358 /* intlist: many Microsoft products for Windows rely on this */
1359 break;
1361 case 0x48: /* ALLOCATE MEMORY */
1362 case 0x49: /* FREE MEMORY */
1363 case 0x4a: /* RESIZE MEMORY BLOCK */
1364 INT_BARF( context, 0x21 );
1365 break;
1367 case 0x4b: /* "EXEC" - LOAD AND/OR EXECUTE PROGRAM */
1368 AX_reg(context) = WinExec16( PTR_SEG_OFF_TO_LIN( DS_reg(context),
1369 DX_reg(context) ),
1370 SW_NORMAL );
1371 if (AX_reg(context) < 32) SET_CFLAG(context);
1372 break;
1374 case 0x4c: /* "EXIT" - TERMINATE WITH RETURN CODE */
1375 TASK_KillCurrentTask( AL_reg(context) );
1376 break;
1378 case 0x4d: /* GET RETURN CODE */
1379 AX_reg(context) = 0; /* normal exit */
1380 break;
1382 case 0x4e: /* "FINDFIRST" - FIND FIRST MATCHING FILE */
1383 if (!INT21_FindFirst(context)) break;
1384 /* fall through */
1386 case 0x4f: /* "FINDNEXT" - FIND NEXT MATCHING FILE */
1387 if (!INT21_FindNext(context))
1389 DOS_ERROR( ER_NoMoreFiles, EC_MediaError, SA_Abort, EL_Disk );
1390 AX_reg(context) = ER_NoMoreFiles;
1391 SET_CFLAG(context);
1393 break;
1395 case 0x51: /* GET PSP ADDRESS */
1396 case 0x62: /* GET PSP ADDRESS */
1397 /* FIXME: should we return the original DOS PSP upon */
1398 /* Windows startup ? */
1399 BX_reg(context) = GetCurrentPDB();
1400 break;
1402 case 0x52: /* "SYSVARS" - GET LIST OF LISTS */
1403 ES_reg(context) = 0x0;
1404 BX_reg(context) = 0x0;
1405 INT_BARF( context, 0x21 );
1406 break;
1408 case 0x56: /* "RENAME" - RENAME FILE */
1409 if (!MoveFile32A( PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)),
1410 PTR_SEG_OFF_TO_LIN(ES_reg(context),DI_reg(context))))
1412 AX_reg(context) = DOS_ExtendedError;
1413 SET_CFLAG(context);
1415 break;
1417 case 0x57: /* FILE DATE AND TIME */
1418 switch (AL_reg(context))
1420 case 0x00: /* Get */
1422 FILETIME filetime;
1423 if (!GetFileTime( BX_reg(context), NULL, NULL, &filetime ))
1425 AX_reg(context) = DOS_ExtendedError;
1426 SET_CFLAG(context);
1428 else FileTimeToDosDateTime( &filetime, &DX_reg(context),
1429 &CX_reg(context) );
1431 break;
1433 case 0x01: /* Set */
1435 FILETIME filetime;
1436 DosDateTimeToFileTime( DX_reg(context), CX_reg(context),
1437 &filetime );
1438 if (!SetFileTime( BX_reg(context), NULL, NULL, &filetime ))
1440 AX_reg(context) = DOS_ExtendedError;
1441 SET_CFLAG(context);
1444 break;
1446 break;
1448 case 0x58: /* GET OR SET MEMORY/UMB ALLOCATION STRATEGY */
1449 switch (AL_reg(context))
1451 case 0x00:
1452 AX_reg(context) = 1;
1453 break;
1454 case 0x02:
1455 AX_reg(context) = 0;
1456 break;
1457 case 0x01:
1458 case 0x03:
1459 break;
1461 RESET_CFLAG(context);
1462 break;
1464 case 0x5a: /* CREATE TEMPORARY FILE */
1465 if (!INT21_CreateTempFile(context))
1467 AX_reg(context) = DOS_ExtendedError;
1468 SET_CFLAG(context);
1470 break;
1472 case 0x5b: /* CREATE NEW FILE */
1473 if ((AX_reg(context) = _lcreat_uniq( PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)), 0 )) == (WORD)HFILE_ERROR16)
1475 AX_reg(context) = DOS_ExtendedError;
1476 SET_CFLAG(context);
1478 break;
1480 case 0x5d: /* NETWORK */
1481 case 0x5e:
1482 /* network software not installed */
1483 DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
1484 AX_reg(context) = DOS_ExtendedError;
1485 SET_CFLAG(context);
1486 break;
1488 case 0x5f: /* NETWORK */
1489 switch (AL_reg(context))
1491 case 0x07: /* ENABLE DRIVE */
1492 if (!DRIVE_Enable( DL_reg(context) ))
1494 DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
1495 AX_reg(context) = DOS_ExtendedError;
1496 SET_CFLAG(context);
1498 break;
1500 case 0x08: /* DISABLE DRIVE */
1501 if (!DRIVE_Disable( DL_reg(context) ))
1503 DOS_ERROR( ER_InvalidDrive, EC_MediaError, SA_Abort, EL_Disk );
1504 AX_reg(context) = DOS_ExtendedError;
1505 SET_CFLAG(context);
1507 break;
1509 default:
1510 /* network software not installed */
1511 DOS_ERROR( ER_NoNetwork, EC_NotFound, SA_Abort, EL_Network );
1512 AX_reg(context) = DOS_ExtendedError;
1513 SET_CFLAG(context);
1514 break;
1516 break;
1518 case 0x60: /* "TRUENAME" - CANONICALIZE FILENAME OR PATH */
1520 if (!GetFullPathName32A( PTR_SEG_OFF_TO_LIN(DS_reg(context),
1521 SI_reg(context)), 128,
1522 PTR_SEG_OFF_TO_LIN(ES_reg(context),
1523 DI_reg(context)),NULL))
1525 AX_reg(context) = DOS_ExtendedError;
1526 SET_CFLAG(context);
1528 else AX_reg(context) = 0;
1530 break;
1532 case 0x61: /* UNUSED */
1533 case 0x63: /* UNUSED */
1534 case 0x64: /* OS/2 DOS BOX */
1535 INT_BARF( context, 0x21 );
1536 SET_CFLAG(context);
1537 break;
1538 case 0x65:{/* GET EXTENDED COUNTRY INFORMATION */
1539 extern WORD WINE_LanguageId;
1540 BYTE *dataptr=PTR_SEG_OFF_TO_LIN(ES_reg(context),DI_reg(context));;
1541 switch (AL_reg(context)) {
1542 case 0x01:
1543 dataptr[0] = 0x1;
1544 *(WORD*)(dataptr+1) = 41;
1545 *(WORD*)(dataptr+3) = WINE_LanguageId;
1546 *(WORD*)(dataptr+5) = CodePage;
1547 break;
1548 case 0x06:
1549 dataptr[0] = 0x06;
1550 *(DWORD*)(dataptr+1) = MAKELONG(DOSMEM_CollateTable & 0xFFFF,DOSMEM_AllocSelector(DOSMEM_CollateTable>>16));
1551 CX_reg(context) = 258;/*FIXME: size of table?*/
1552 break;
1553 default:
1554 INT_BARF( context, 0x21 );
1555 SET_CFLAG(context);
1556 break;
1558 break;
1560 case 0x66: /* GLOBAL CODE PAGE TABLE */
1561 switch (AL_reg(context))
1563 case 0x01:
1564 DX_reg(context) = BX_reg(context) = CodePage;
1565 RESET_CFLAG(context);
1566 break;
1567 case 0x02:
1568 CodePage = BX_reg(context);
1569 RESET_CFLAG(context);
1570 break;
1572 break;
1574 case 0x67: /* SET HANDLE COUNT */
1575 SetHandleCount16( BX_reg(context) );
1576 if (DOS_ExtendedError)
1578 AX_reg(context) = DOS_ExtendedError;
1579 SET_CFLAG(context);
1581 break;
1583 case 0x68: /* "FFLUSH" - COMMIT FILE */
1584 case 0x6a: /* COMMIT FILE */
1585 if (!FlushFileBuffers( BX_reg(context) ))
1587 AX_reg(context) = DOS_ExtendedError;
1588 SET_CFLAG(context);
1590 break;
1592 case 0x69: /* DISK SERIAL NUMBER */
1593 switch (AL_reg(context))
1595 case 0x00:
1596 if (!INT21_GetDiskSerialNumber(context))
1598 AX_reg(context) = DOS_ExtendedError;
1599 SET_CFLAG(context);
1601 else AX_reg(context) = 0;
1602 break;
1603 case 0x01:
1604 if (!INT21_SetDiskSerialNumber(context))
1606 AX_reg(context) = DOS_ExtendedError;
1607 SET_CFLAG(context);
1609 else AX_reg(context) = 1;
1610 break;
1612 break;
1614 case 0x6C: /* Extended Open/Create*/
1615 ExtendedOpenCreateFile(context);
1616 break;
1618 case 0x71: /* MS-DOS 7 (Windows95) - LONG FILENAME FUNCTIONS */
1619 switch(AL_reg(context))
1621 case 0x39: /* Create directory */
1622 if (!CreateDirectory32A( PTR_SEG_OFF_TO_LIN( DS_reg(context),
1623 DX_reg(context) ), NULL))
1625 AX_reg(context) = DOS_ExtendedError;
1626 SET_CFLAG(context);
1628 break;
1629 case 0x3a: /* Remove directory */
1630 if (!RemoveDirectory32A( PTR_SEG_OFF_TO_LIN( DS_reg(context),
1631 DX_reg(context) )))
1633 AX_reg(context) = DOS_ExtendedError;
1634 SET_CFLAG(context);
1636 break;
1637 case 0x4e: /* Find first file */
1638 /* FIXME: use attributes in CX */
1639 if (!(AX_reg(context) = FindFirstFile16(
1640 PTR_SEG_OFF_TO_LIN(DS_reg(context),DX_reg(context)),
1641 (WIN32_FIND_DATA32A *)PTR_SEG_OFF_TO_LIN(ES_reg(context),
1642 DI_reg(context)))))
1644 AX_reg(context) = DOS_ExtendedError;
1645 SET_CFLAG(context);
1647 break;
1648 case 0x4f: /* Find next file */
1649 if (!FindNextFile16( BX_reg(context),
1650 (WIN32_FIND_DATA32A *)PTR_SEG_OFF_TO_LIN(ES_reg(context),
1651 DI_reg(context))))
1653 AX_reg(context) = DOS_ExtendedError;
1654 SET_CFLAG(context);
1656 break;
1657 case 0xa1: /* Find close */
1658 if (!FindClose16( BX_reg(context) ))
1660 AX_reg(context) = DOS_ExtendedError;
1661 SET_CFLAG(context);
1663 break;
1664 case 0xa0:
1665 break;
1666 case 0x3b: /* Change directory */
1667 case 0x41: /* Delete file */
1668 case 0x43: /* Get/Set file attributes */
1669 case 0x47: /* Get current directory */
1670 case 0x56: /* Move (rename) file */
1671 case 0x6c: /* Create/Open file */
1672 default:
1673 fprintf( stderr, "Unimplemented int21 long file name function:\n");
1674 INT_BARF( context, 0x21 );
1675 SET_CFLAG(context);
1676 AL_reg(context) = 0;
1677 break;
1679 break;
1681 case 0x70: /* MS-DOS 7 (Windows95) - ??? (country-specific?)*/
1682 case 0x72: /* MS-DOS 7 (Windows95) - ??? */
1683 case 0x73: /* MS-DOS 7 (Windows95) - DRIVE LOCKING ??? */
1684 dprintf_int(stddeb,"int21: windows95 function AX %04x\n",
1685 AX_reg(context));
1686 dprintf_int(stddeb, " returning unimplemented\n");
1687 SET_CFLAG(context);
1688 AL_reg(context) = 0;
1689 break;
1691 case 0xdc: /* CONNECTION SERVICES - GET CONNECTION NUMBER */
1692 case 0xea: /* NOVELL NETWARE - RETURN SHELL VERSION */
1693 break;
1695 default:
1696 INT_BARF( context, 0x21 );
1697 break;
1699 dprintf_int( stddeb, "ret21: AX=%04x BX=%04x CX=%04x DX=%04x "
1700 "SI=%04x DI=%04x DS=%04x ES=%04x EFL=%08lx\n",
1701 AX_reg(context), BX_reg(context), CX_reg(context),
1702 DX_reg(context), SI_reg(context), DI_reg(context),
1703 (WORD)DS_reg(context), (WORD)ES_reg(context),
1704 EFL_reg(context));