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source: trunk/src/kernel32/hmdisk.cpp@ 7269

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Last change on this file since 7269 was 7269, checked in by sandervl, 24 years ago
bugfix
File size: 40.0 KB

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1	/* $Id: hmdisk.cpp,v 1.25 2001-10-29 16:29:33 sandervl Exp $ */
2
3	/*
4	* Win32 Disk API functions for OS/2
5	*
6	* Copyright 2000 Sander van Leeuwen
7	*
8	*
9	* Project Odin Software License can be found in LICENSE.TXT
10	*
11	*/
12	#include <os2win.h>
13	#include <string.h>
14
15	#include <misc.h>
16	#include "hmdisk.h"
17	#include "mmap.h"
18	#include "oslibdos.h"
19	#include <win\winioctl.h>
20	#include <win\ntddscsi.h>
21	#include <win\wnaspi32.h>
22	#include <win\aspi.h>
23
24	#define DBG_LOCALLOG DBG_hmdisk
25	#include "dbglocal.h"
26
27	#define BIT_0 (1)
28	#define BIT_1 (2)
29	#define BIT_2 (4)
30	#define BIT_11 (1<<11)
31
32	typedef struct
33	{
34	HINSTANCE hInstAspi;
35	DWORD (WIN32API *GetASPI32SupportInfo)();
36	DWORD (CDECL *SendASPI32Command)(LPSRB lpSRB);
37	ULONG driveLetter;
38	ULONG driveType;
39	CHAR signature[8];
40	} DRIVE_INFO;
41
42	HMDeviceDiskClass::HMDeviceDiskClass(LPCSTR lpDeviceName) : HMDeviceKernelObjectClass(lpDeviceName)
43	{
44	HMDeviceRegisterEx("\\\\.\\PHYSICALDRIVE", this, NULL);
45	}
46
47	/*****************************************************************************
48	* Name : HMDeviceDiskClass::FindDevice
49	* Purpose : Checks if lpDeviceName belongs to this device class
50	* Parameters: LPCSTR lpClassDevName
51	* LPCSTR lpDeviceName
52	* int namelength
53	* Variables :
54	* Result : checks if name is for a drive of physical disk
55	* Remark :
56	* Status :
57	*
58	* Author : SvL
59	*****************************************************************************/
60	BOOL HMDeviceDiskClass::FindDevice(LPCSTR lpClassDevName, LPCSTR lpDeviceName, int namelength)
61	{
62	//\\.\x: -> length 6
63	//\\.\PHYSICALDRIVEn -> length 18
64	if(namelength != 6 && namelength != 18) {
65	return FALSE;
66	}
67
68	//SvL: \\.\x: -> drive x (i.e. \\.\C:)
69	// \\.\PHYSICALDRIVEn -> drive n (n>=0)
70	if((strncmp(lpDeviceName, "\\\\.\\", 4) == 0) &&
71	namelength == 6 && lpDeviceName[5] == ':')
72	{
73	return TRUE;
74	}
75	if((strncmp(lpDeviceName, "\\\\.\\PHYSICALDRIVE", 17) == 0) && namelength == 18) {
76	return TRUE;
77	}
78	return FALSE;
79	}
80	//******************************************************************************
81	//TODO: PHYSICALDRIVEn!!
82	//******************************************************************************
83	DWORD HMDeviceDiskClass::CreateFile (LPCSTR lpFileName,
84	PHMHANDLEDATA pHMHandleData,
85	PVOID lpSecurityAttributes,
86	PHMHANDLEDATA pHMHandleDataTemplate)
87	{
88	HFILE hFile;
89	HFILE hTemplate;
90
91	dprintf2(("KERNEL32: HMDeviceDiskClass::CreateFile %s(%s,%08x,%08x,%08x)\n",
92	lpHMDeviceName,
93	lpFileName,
94	pHMHandleData,
95	lpSecurityAttributes,
96	pHMHandleDataTemplate));
97
98	//TODO: check in NT if CREATE_ALWAYS is allowed!!
99	if(pHMHandleData->dwCreation != OPEN_EXISTING) {
100	dprintf(("Invalid creation flags %x!!", pHMHandleData->dwCreation));
101	return ERROR_INVALID_PARAMETER;
102	}
103	if(strncmp(lpFileName, // "support" for local unc names
104	"\\\\.\\",
105	4) == 0)
106	{
107	lpFileName+=4;
108	}
109
110	//Disable error popus. NT allows an app to open a cdrom/dvd drive without a disk inside
111	//OS/2 fails in that case with error ERROR_NOT_READY
112	ULONG oldmode = SetErrorMode(SEM_FAILCRITICALERRORS);
113	hFile = OSLibDosCreateFile((LPSTR)lpFileName,
114	pHMHandleData->dwAccess,
115	pHMHandleData->dwShare,
116	(LPSECURITY_ATTRIBUTES)lpSecurityAttributes,
117	pHMHandleData->dwCreation,
118	pHMHandleData->dwFlags,
119	hTemplate);
120	SetErrorMode(oldmode);
121
122	if (hFile != INVALID_HANDLE_ERROR \|\| GetLastError() == ERROR_NOT_READY)
123	{
124	if(hFile == INVALID_HANDLE_ERROR) {
125	SetLastError(NO_ERROR);
126	pHMHandleData->hHMHandle = 0; //handle lookup fails if this is set to -1
127	}
128	else pHMHandleData->hHMHandle = hFile;
129
130	DRIVE_INFO drvInfo = (DRIVE_INFO )malloc(sizeof(DRIVE_INFO));
131	if(drvInfo == NULL) {
132	if(pHMHandleData->hHMHandle) OSLibDosClose(pHMHandleData->hHMHandle);
133	return ERROR_OUTOFMEMORY;
134	}
135	pHMHandleData->dwUserData = (DWORD)drvInfo;
136
137	memset(drvInfo, 0, sizeof(DRIVE_INFO));
138	drvInfo->driveLetter = *lpFileName; //save drive letter
139	if(drvInfo->driveLetter >= 'a') {
140	drvInfo->driveLetter = drvInfo->driveLetter - ((int)'a' - (int)'A');
141	}
142
143	drvInfo->driveType = GetDriveTypeA(lpFileName);
144	if(drvInfo->driveType == DRIVE_CDROM)
145	{
146	drvInfo->hInstAspi = LoadLibraryA("WNASPI32.DLL");
147	if(drvInfo->hInstAspi == NULL) {
148	if(pHMHandleData->hHMHandle) OSLibDosClose(pHMHandleData->hHMHandle);
149	free(drvInfo);
150	return ERROR_INVALID_PARAMETER;
151	}
152	(FARPROC )&drvInfo->GetASPI32SupportInfo = GetProcAddress(drvInfo->hInstAspi, "GetASPI32SupportInfo");
153	(FARPROC )&drvInfo->SendASPI32Command = GetProcAddress(drvInfo->hInstAspi, "SendASPI32Command");
154
155	if(drvInfo->GetASPI32SupportInfo() == 0) {
156	FreeLibrary(drvInfo->hInstAspi);
157	drvInfo->hInstAspi = 0;
158	}
159
160	//get cdrom signature
161	DWORD parsize = 4;
162	DWORD datasize = 4;
163	strcpy(drvInfo->signature, "CD01");
164	OSLibDosDevIOCtl(pHMHandleData->hHMHandle, 0x80, 0x61, &drvInfo->signature[0], 4, &parsize,
165	&drvInfo->signature[0], 4, &datasize);
166	}
167
168	return (NO_ERROR);
169	}
170	else {
171	dprintf(("CreateFile failed; error %d", GetLastError()));
172	return(GetLastError());
173	}
174	}
175	//******************************************************************************
176	//******************************************************************************
177	BOOL HMDeviceDiskClass::CloseHandle(PHMHANDLEDATA pHMHandleData)
178	{
179	BOOL ret = TRUE;
180
181	if(pHMHandleData->hHMHandle) {
182	ret = OSLibDosClose(pHMHandleData->hHMHandle);
183	}
184	if(pHMHandleData->dwUserData) {
185	DRIVE_INFO drvInfo = (DRIVE_INFO)pHMHandleData->dwUserData;
186	if(drvInfo->hInstAspi) FreeLibrary(drvInfo->hInstAspi);
187	free(drvInfo);
188	}
189	return ret;
190	}
191	//******************************************************************************
192	//******************************************************************************
193
194
195	// this helper function just calls the specified
196	// ioctl function for the CDROM manager with no
197	// parameter packet other than the CD01 signature
198	// and no data packet.
199	static BOOL ioctlCDROMSimple(PHMHANDLEDATA pHMHandleData,
200	DWORD dwCategory,
201	DWORD dwFunction,
202	LPDWORD lpBytesReturned, DRIVE_INFO *pdrvInfo)
203	{
204	DWORD dwParameterSize = 4;
205	DWORD dwDataSize = 0;
206	DWORD ret;
207
208	if(lpBytesReturned)
209	*lpBytesReturned = 0;
210
211	ret = OSLibDosDevIOCtl(pHMHandleData->hHMHandle,
212	dwCategory,
213	dwFunction,
214	pdrvInfo->signature,
215	4,
216	&dwParameterSize,
217	NULL,
218	0,
219	&dwDataSize);
220	if(ret)
221	{
222	SetLastError(error2WinError(ret));
223	return FALSE;
224	}
225	SetLastError(ERROR_SUCCESS);
226	return TRUE;
227	}
228
229
230	// this helper function just calls the specified
231	// ioctl function for the DISK manager with the
232	// specified function codes
233	static BOOL ioctlDISKUnlockEject(PHMHANDLEDATA pHMHandleData,
234	DWORD dwCommand,
235	DWORD dwDiskHandle,
236	LPDWORD lpBytesReturned)
237	{
238	#pragma pack(1)
239	struct
240	{
241	BYTE ucCommand;
242	BYTE ucHandle;
243	} ParameterBlock;
244	#pragma pack()
245
246	DWORD dwParameterSize = sizeof( ParameterBlock );
247	DWORD dwDataSize = 0;
248	DWORD ret;
249
250	ParameterBlock.ucCommand = dwCommand;
251	ParameterBlock.ucHandle = dwDiskHandle;
252
253	if(lpBytesReturned)
254	*lpBytesReturned = 0;
255
256	ret = OSLibDosDevIOCtl(pHMHandleData->hHMHandle,
257	0x08, // IOCTL_DISK
258	0x40, // DSK_UNLOCKEJECTMEDIA
259	&ParameterBlock,
260	sizeof( ParameterBlock ),
261	&dwParameterSize,
262	NULL,
263	0,
264	&dwDataSize);
265	if(ret)
266	{
267	SetLastError(error2WinError(ret));
268	return FALSE;
269	}
270	SetLastError(ERROR_SUCCESS);
271	return TRUE;
272	}
273
274
275
276	BOOL HMDeviceDiskClass::DeviceIoControl(PHMHANDLEDATA pHMHandleData, DWORD dwIoControlCode,
277	LPVOID lpInBuffer, DWORD nInBufferSize,
278	LPVOID lpOutBuffer, DWORD nOutBufferSize,
279	LPDWORD lpBytesReturned, LPOVERLAPPED lpOverlapped)
280	{
281	#ifdef DEBUG
282	char *msg = NULL;
283
284	switch(dwIoControlCode)
285	{
286	case FSCTL_DELETE_REPARSE_POINT:
287	msg = "FSCTL_DELETE_REPARSE_POINT";
288	break;
289	case FSCTL_DISMOUNT_VOLUME:
290	msg = "FSCTL_DISMOUNT_VOLUME";
291	break;
292	case FSCTL_GET_COMPRESSION:
293	msg = "FSCTL_GET_COMPRESSION";
294	break;
295	case FSCTL_GET_REPARSE_POINT:
296	msg = "FSCTL_GET_REPARSE_POINT";
297	break;
298	case FSCTL_LOCK_VOLUME:
299	msg = "FSCTL_LOCK_VOLUME";
300	break;
301	case FSCTL_QUERY_ALLOCATED_RANGES:
302	msg = "FSCTL_QUERY_ALLOCATED_RANGES";
303	break;
304	case FSCTL_SET_COMPRESSION:
305	msg = "FSCTL_SET_COMPRESSION";
306	break;
307	case FSCTL_SET_REPARSE_POINT:
308	msg = "FSCTL_SET_REPARSE_POINT";
309	break;
310	case FSCTL_SET_SPARSE:
311	msg = "FSCTL_SET_SPARSE";
312	break;
313	case FSCTL_SET_ZERO_DATA:
314	msg = "FSCTL_SET_ZERO_DATA";
315	break;
316	case FSCTL_UNLOCK_VOLUME:
317	msg = "FSCTL_UNLOCK_VOLUME";
318	break;
319	case IOCTL_DISK_CHECK_VERIFY:
320	msg = "IOCTL_DISK_CHECK_VERIFY";
321	break;
322	case IOCTL_DISK_EJECT_MEDIA:
323	msg = "IOCTL_DISK_EJECT_MEDIA";
324	break;
325	case IOCTL_DISK_FORMAT_TRACKS:
326	msg = "IOCTL_DISK_FORMAT_TRACKS";
327	break;
328	case IOCTL_DISK_GET_DRIVE_GEOMETRY:
329	msg = "IOCTL_DISK_GET_DRIVE_GEOMETRY";
330	break;
331	case IOCTL_DISK_GET_DRIVE_LAYOUT:
332	msg = "IOCTL_DISK_GET_DRIVE_LAYOUT";
333	break;
334	case IOCTL_DISK_GET_MEDIA_TYPES:
335	msg = "IOCTL_DISK_GET_MEDIA_TYPES";
336	break;
337	case IOCTL_DISK_GET_PARTITION_INFO:
338	msg = "IOCTL_DISK_GET_PARTITION_INFO";
339	break;
340	case IOCTL_DISK_LOAD_MEDIA:
341	msg = "IOCTL_DISK_LOAD_MEDIA";
342	break;
343	case IOCTL_DISK_MEDIA_REMOVAL:
344	msg = "IOCTL_DISK_MEDIA_REMOVAL";
345	break;
346	case IOCTL_DISK_PERFORMANCE:
347	msg = "IOCTL_DISK_PERFORMANCE";
348	break;
349	case IOCTL_DISK_REASSIGN_BLOCKS:
350	msg = "IOCTL_DISK_REASSIGN_BLOCKS";
351	break;
352	case IOCTL_DISK_SET_DRIVE_LAYOUT:
353	msg = "IOCTL_DISK_SET_DRIVE_LAYOUT";
354	break;
355	case IOCTL_DISK_SET_PARTITION_INFO:
356	msg = "IOCTL_DISK_SET_PARTITION_INFO";
357	break;
358	case IOCTL_DISK_VERIFY:
359	msg = "IOCTL_DISK_VERIFY";
360	break;
361	case IOCTL_SERIAL_LSRMST_INSERT:
362	msg = "IOCTL_SERIAL_LSRMST_INSERT";
363	break;
364	case IOCTL_STORAGE_CHECK_VERIFY:
365	msg = "IOCTL_STORAGE_CHECK_VERIFY";
366	break;
367	case IOCTL_STORAGE_EJECT_MEDIA:
368	msg = "IOCTL_STORAGE_EJECT_MEDIA";
369	break;
370	case IOCTL_STORAGE_GET_MEDIA_TYPES:
371	msg = "IOCTL_STORAGE_GET_MEDIA_TYPES";
372	break;
373	case IOCTL_STORAGE_LOAD_MEDIA:
374	msg = "IOCTL_STORAGE_LOAD_MEDIA";
375	break;
376	case IOCTL_STORAGE_MEDIA_REMOVAL:
377	msg = "IOCTL_STORAGE_MEDIA_REMOVAL";
378	break;
379	case IOCTL_SCSI_PASS_THROUGH:
380	msg = "IOCTL_SCSI_PASS_THROUGH";
381	break;
382	case IOCTL_SCSI_MINIPORT:
383	msg = "IOCTL_SCSI_MINIPORT";
384	break;
385	case IOCTL_SCSI_GET_INQUIRY_DATA:
386	msg = "IOCTL_SCSI_GET_INQUIRY_DATA";
387	break;
388	case IOCTL_SCSI_GET_CAPABILITIES:
389	msg = "IOCTL_SCSI_GET_CAPABILITIES";
390	break;
391	case IOCTL_SCSI_PASS_THROUGH_DIRECT:
392	msg = "IOCTL_SCSI_PASS_THROUGH_DIRECT";
393	break;
394	case IOCTL_SCSI_GET_ADDRESS:
395	msg = "IOCTL_SCSI_GET_ADDRESS";
396	break;
397	case IOCTL_SCSI_RESCAN_BUS:
398	msg = "IOCTL_SCSI_RESCAN_BUS";
399	break;
400	case IOCTL_SCSI_GET_DUMP_POINTERS:
401	msg = "IOCTL_SCSI_GET_DUMP_POINTERS";
402	break;
403	case IOCTL_SCSI_FREE_DUMP_POINTERS:
404	msg = "IOCTL_SCSI_FREE_DUMP_POINTERS";
405	break;
406	case IOCTL_IDE_PASS_THROUGH:
407	msg = "IOCTL_IDE_PASS_THROUGH";
408	break;
409	case IOCTL_CDROM_UNLOAD_DRIVER:
410	msg = "IOCTL_CDROM_UNLOAD_DRIVER";
411	break;
412	case IOCTL_CDROM_READ_TOC:
413	msg = "IOCTL_CDROM_READ_TOC";
414	break;
415	case IOCTL_CDROM_GET_CONTROL:
416	msg = "IOCTL_CDROM_GET_CONTROL";
417	break;
418	case IOCTL_CDROM_PLAY_AUDIO_MSF:
419	msg = "IOCTL_CDROM_PLAY_AUDIO_MSF";
420	break;
421	case IOCTL_CDROM_SEEK_AUDIO_MSF:
422	msg = "IOCTL_CDROM_SEEK_AUDIO_MSF";
423	break;
424	case IOCTL_CDROM_STOP_AUDIO:
425	msg = "IOCTL_CDROM_STOP_AUDIO";
426	break;
427	case IOCTL_CDROM_PAUSE_AUDIO:
428	msg = "IOCTL_CDROM_PAUSE_AUDIO";
429	break;
430	case IOCTL_CDROM_RESUME_AUDIO:
431	msg = "IOCTL_CDROM_RESUME_AUDIO";
432	break;
433	case IOCTL_CDROM_GET_VOLUME:
434	msg = "IOCTL_CDROM_GET_VOLUME";
435	break;
436	case IOCTL_CDROM_SET_VOLUME:
437	msg = "IOCTL_CDROM_SET_VOLUME";
438	break;
439	case IOCTL_CDROM_READ_Q_CHANNEL:
440	msg = "IOCTL_CDROM_READ_Q_CHANNEL";
441	break;
442	case IOCTL_CDROM_GET_LAST_SESSION:
443	msg = "IOCTL_CDROM_GET_LAST_SESSION";
444	break;
445	case IOCTL_CDROM_RAW_READ:
446	msg = "IOCTL_CDROM_RAW_READ";
447	break;
448	case IOCTL_CDROM_DISK_TYPE:
449	msg = "IOCTL_CDROM_DISK_TYPE";
450	break;
451	case IOCTL_CDROM_GET_DRIVE_GEOMETRY:
452	msg = "IOCTL_CDROM_GET_DRIVE_GEOMETRY";
453	break;
454	case IOCTL_CDROM_CHECK_VERIFY:
455	msg = "IOCTL_CDROM_CHECK_VERIFY";
456	break;
457	case IOCTL_CDROM_MEDIA_REMOVAL:
458	msg = "IOCTL_CDROM_MEDIA_REMOVAL";
459	break;
460	case IOCTL_CDROM_EJECT_MEDIA:
461	msg = "IOCTL_CDROM_EJECT_MEDIA";
462	break;
463	case IOCTL_CDROM_LOAD_MEDIA:
464	msg = "IOCTL_CDROM_LOAD_MEDIA";
465	break;
466	case IOCTL_CDROM_RESERVE:
467	msg = "IOCTL_CDROM_RESERVE";
468	break;
469	case IOCTL_CDROM_RELEASE:
470	msg = "IOCTL_CDROM_RELEASE";
471	break;
472	case IOCTL_CDROM_FIND_NEW_DEVICES:
473	msg = "IOCTL_CDROM_FIND_NEW_DEVICES";
474	break;
475	}
476	if(msg) {
477	dprintf(("HMDeviceDiskClass::DeviceIoControl %s %x %d %x %d %x %x", msg, lpInBuffer, nInBufferSize,
478	lpOutBuffer, nOutBufferSize, lpBytesReturned, lpOverlapped));
479	}
480	#endif
481
482	DRIVE_INFO drvInfo = (DRIVE_INFO)pHMHandleData->dwUserData;
483	if(drvInfo == NULL) {
484	dprintf(("ERROR: DeviceIoControl: drvInfo == NULL!!!"));
485	DebugInt3();
486	SetLastError(ERROR_INVALID_HANDLE);
487	return FALSE;
488	}
489	switch(dwIoControlCode)
490	{
491	case FSCTL_DELETE_REPARSE_POINT:
492	case FSCTL_DISMOUNT_VOLUME:
493	case FSCTL_GET_COMPRESSION:
494	case FSCTL_GET_REPARSE_POINT:
495	case FSCTL_LOCK_VOLUME:
496	case FSCTL_QUERY_ALLOCATED_RANGES:
497	case FSCTL_SET_COMPRESSION:
498	case FSCTL_SET_REPARSE_POINT:
499	case FSCTL_SET_SPARSE:
500	case FSCTL_SET_ZERO_DATA:
501	case FSCTL_UNLOCK_VOLUME:
502	break;
503
504	case IOCTL_DISK_FORMAT_TRACKS:
505	case IOCTL_DISK_GET_DRIVE_LAYOUT:
506	break;
507
508	case IOCTL_DISK_GET_DRIVE_GEOMETRY:
509	case IOCTL_DISK_GET_MEDIA_TYPES:
510	{
511	PDISK_GEOMETRY pGeom = (PDISK_GEOMETRY)lpOutBuffer;
512	if(nOutBufferSize < sizeof(DISK_GEOMETRY) \|\| !pGeom) {
513	SetLastError(ERROR_INSUFFICIENT_BUFFER);
514	return FALSE;
515	}
516	if(lpBytesReturned) {
517	*lpBytesReturned = 0;
518	}
519
520	char temp;
521	ULONG bytesread, oldmode;
522	APIRET rc;
523
524	//Applications can use this IOCTL to check if the floppy has been changed
525	//OSLibDosGetDiskGeometry won't fail when that happens so we read one
526	//byte from the disk and return ERROR_MEDIA_CHANGED if it fails with
527	//ERROR_WRONG_DISK
528	oldmode = SetErrorMode(SEM_FAILCRITICALERRORS);
529	rc = OSLibDosRead(pHMHandleData->hHMHandle, (PVOID)&temp,
530	1, &bytesread);
531	SetErrorMode(oldmode);
532	if(rc == FALSE) {
533	dprintf(("IOCTL_DISK_GET_DRIVE_GEOMETRY: DosRead failed with rc %d", GetLastError()));
534	if(GetLastError() == ERROR_WRONG_DISK) {
535	SetLastError(ERROR_MEDIA_CHANGED);
536	return FALSE;
537	}
538	}
539	else OSLibDosSetFilePtr(pHMHandleData->hHMHandle, -1, OSLIB_SETPTR_FILE_CURRENT);
540
541	if(OSLibDosGetDiskGeometry(pHMHandleData->hHMHandle, drvInfo->driveLetter, pGeom) == FALSE) {
542	return FALSE;
543	}
544	if(lpBytesReturned) {
545	*lpBytesReturned = sizeof(DISK_GEOMETRY);
546	}
547	SetLastError(ERROR_SUCCESS);
548	return TRUE;
549	}
550
551	case IOCTL_DISK_GET_PARTITION_INFO:
552	case IOCTL_DISK_LOAD_MEDIA:
553	case IOCTL_DISK_MEDIA_REMOVAL:
554	case IOCTL_DISK_PERFORMANCE:
555	case IOCTL_DISK_REASSIGN_BLOCKS:
556	case IOCTL_DISK_SET_DRIVE_LAYOUT:
557	case IOCTL_DISK_SET_PARTITION_INFO:
558	case IOCTL_DISK_VERIFY:
559	case IOCTL_SERIAL_LSRMST_INSERT:
560	break;
561
562
563	// -----------
564	// CDROM class
565	// -----------
566	case IOCTL_CDROM_READ_TOC:
567	{
568	#pragma pack(1)
569	typedef struct
570	{
571	BYTE ucFirstTrack;
572	BYTE ucLastTrack;
573	DWORD ulLeadOutAddr;
574	} AudioDiskInfo;
575	typedef struct
576	{
577	DWORD ulTrackAddr;
578	BYTE ucTrackControl;
579	} AudioTrackInfo;
580	typedef struct
581	{
582	BYTE signature[4];
583	BYTE ucTrack;
584	} ParameterBlock;
585	#pragma pack()
586
587	PCDROM_TOC pTOC = (PCDROM_TOC)lpOutBuffer;
588	DWORD rc, numtracks;
589	DWORD parsize = 4;
590	DWORD datasize;
591	AudioDiskInfo diskinfo;
592	AudioTrackInfo trackinfo;
593	ParameterBlock parm;
594
595	if(lpBytesReturned)
596	*lpBytesReturned = 0;
597
598	if(!pTOC) {
599	SetLastError(ERROR_INVALID_PARAMETER);
600	return FALSE;
601	}
602	if(nOutBufferSize < sizeof(CDROM_TOC)) {
603	SetLastError(ERROR_INSUFFICIENT_BUFFER);
604	return FALSE;
605	}
606	memset(pTOC, 0, nOutBufferSize);
607	//IOCTL_CDROMAUDIO (0x81), CDROMAUDIO_GETAUDIODISK (0x61)
608	datasize = sizeof(diskinfo);
609	rc = OSLibDosDevIOCtl(pHMHandleData->hHMHandle, 0x81, 0x61, &drvInfo->signature[0], 4, &parsize,
610	&diskinfo, sizeof(diskinfo), &datasize);
611	if(rc != NO_ERROR) {
612	dprintf(("OSLibDosDevIOCtl failed with rc %d", rc));
613	return FALSE;
614	}
615	pTOC->FirstTrack = diskinfo.ucFirstTrack;
616	pTOC->LastTrack = diskinfo.ucLastTrack;
617	numtracks = pTOC->LastTrack - pTOC->FirstTrack + 1;
618	dprintf(("first %d, last %d, num %d", pTOC->FirstTrack, pTOC->LastTrack, numtracks));
619
620	//numtracks+1, because we have to add a track at the end
621	int length = 4 + (numtracks+1)*sizeof(TRACK_DATA);
622	//big endian format
623	pTOC->Length[0] = HIBYTE((length-2)); //minus length itself;
624	pTOC->Length[1] = LOBYTE((length-2)); //minus length itself;
625
626	if(nOutBufferSize < length) {
627	SetLastError(ERROR_INSUFFICIENT_BUFFER);
628	return FALSE;
629	}
630
631	for(int i=0;i<numtracks;i++)
632	{
633	parsize = sizeof(parm);
634	memcpy(parm.signature, drvInfo->signature, 4);
635	parm.ucTrack = i;
636
637	datasize = sizeof(trackinfo);
638
639	//IOCTL_CDROMAUDIO (0x81), CDROMAUDIO_GETAUDIOTRACK (0x62)
640	rc = OSLibDosDevIOCtl(pHMHandleData->hHMHandle, 0x81, 0x62, &parm, sizeof(parm), &parsize,
641	&trackinfo, sizeof(trackinfo), &datasize);
642	if(rc != NO_ERROR) {
643	dprintf(("OSLibDosDevIOCtl failed with rc %d", rc));
644	return FALSE;
645	}
646	pTOC->TrackData[i].TrackNumber = pTOC->FirstTrack + i;
647	pTOC->TrackData[i].Reserved = 0;
648	pTOC->TrackData[i].Control = trackinfo.ucTrackControl >> 4;
649	pTOC->TrackData[i].Adr = trackinfo.ucTrackControl & 0xF;
650	pTOC->TrackData[i].Reserved1 = 0;
651	//big endian format
652	pTOC->TrackData[i].Address[0] = HIWORD(HIBYTE(trackinfo.ulTrackAddr));
653	pTOC->TrackData[i].Address[1] = HIWORD(LOBYTE(trackinfo.ulTrackAddr));
654	pTOC->TrackData[i].Address[2] = LOWORD(HIBYTE(trackinfo.ulTrackAddr));
655	pTOC->TrackData[i].Address[3] = LOWORD(LOBYTE(trackinfo.ulTrackAddr));
656	}
657	//Add a track at the end (presumably so the app can determine the size of the 1st track)
658	//That is what NT4, SP6 does anyway
659	pTOC->TrackData[numtracks].TrackNumber = 0xAA;
660	pTOC->TrackData[numtracks].Reserved = 0;
661	pTOC->TrackData[numtracks].Control = pTOC->TrackData[numtracks-1].Control;
662	pTOC->TrackData[numtracks].Adr = pTOC->TrackData[numtracks-1].Adr;
663	pTOC->TrackData[numtracks].Reserved1 = 0;
664	//big endian format
665	//Address of pseudo track is the address of the lead-out track
666	pTOC->TrackData[numtracks].Address[0] = HIWORD(HIBYTE(diskinfo.ulLeadOutAddr));
667	pTOC->TrackData[numtracks].Address[1] = HIWORD(LOBYTE(diskinfo.ulLeadOutAddr));
668	pTOC->TrackData[numtracks].Address[2] = LOWORD(HIBYTE(diskinfo.ulLeadOutAddr));
669	pTOC->TrackData[numtracks].Address[3] = LOWORD(LOBYTE(diskinfo.ulLeadOutAddr));
670
671	if(lpBytesReturned)
672	*lpBytesReturned = length;
673
674	SetLastError(ERROR_SUCCESS);
675	return TRUE;
676	}
677
678	case IOCTL_CDROM_UNLOAD_DRIVER:
679	case IOCTL_CDROM_GET_CONTROL:
680	break;
681
682	case IOCTL_CDROM_PLAY_AUDIO_MSF:
683	{
684	dprintf(("Play CDROM audio playback"));
685
686	#pragma pack(1)
687	struct
688	{
689	DWORD ucSignature;
690	BYTE ucAddressingMode;
691	DWORD ulStartingMSF;
692	DWORD ulEndingMSF;
693	} ParameterBlock;
694	#pragma pack()
695
696	PCDROM_PLAY_AUDIO_MSF pPlay = (PCDROM_PLAY_AUDIO_MSF)lpInBuffer;
697
698	// setup the parameter block
699
700	memcpy(&ParameterBlock.ucSignature, drvInfo->signature, 4);
701	ParameterBlock.ucAddressingMode = 1; // MSF format
702
703	// @@@PH unknown if this kind of MSF conversion is correct!
704	ParameterBlock.ulStartingMSF = pPlay->StartingM << 16 \|
705	pPlay->StartingS << 8 \|
706	pPlay->StartingF;
707	ParameterBlock.ulEndingMSF = pPlay->EndingM << 16 \|
708	pPlay->EndingS << 8 \|
709	pPlay->EndingF;
710
711	DWORD dwParameterSize = sizeof( ParameterBlock );
712	DWORD dwDataSize = 0;
713	DWORD ret;
714
715	if(lpBytesReturned)
716	*lpBytesReturned = 0;
717
718	ret = OSLibDosDevIOCtl(pHMHandleData->hHMHandle,
719	0x81, // IOCTL_CDROMAUDIO
720	0x50, // CDROMAUDIO_PLAYAUDIO
721	&ParameterBlock,
722	sizeof( ParameterBlock ),
723	&dwParameterSize,
724	NULL,
725	0,
726	&dwDataSize);
727	if(ret)
728	{
729	SetLastError(error2WinError(ret));
730	return FALSE;
731	}
732	SetLastError(ERROR_SUCCESS);
733	return TRUE;
734	}
735
736	case IOCTL_CDROM_SEEK_AUDIO_MSF:
737	break;
738
739	case IOCTL_CDROM_PAUSE_AUDIO:
740	// NO BREAK CASE
741	// Note: for OS/2, pause and stop seems to be the same!
742
743	case IOCTL_CDROM_STOP_AUDIO:
744	{
745	dprintf(("Stop / pause CDROM audio playback"));
746	return ioctlCDROMSimple(pHMHandleData,
747	0x81, // IOCTL_CDROMAUDIO
748	0x51, // CDROMAUDIO_STOPAUDIO
749	lpBytesReturned, drvInfo);
750	}
751
752	case IOCTL_CDROM_RESUME_AUDIO:
753	{
754	dprintf(("Resume CDROM audio playback"));
755	return ioctlCDROMSimple(pHMHandleData,
756	0x81, // IOCTL_CDROMAUDIO
757	0x52, // CDROMAUDIO_RESUMEAUDIO
758	lpBytesReturned, drvInfo);
759	}
760
761	case IOCTL_CDROM_GET_VOLUME:
762	{
763	PVOLUME_CONTROL pVol = (PVOLUME_CONTROL)lpOutBuffer;
764	char volbuf[8];
765	DWORD parsize, datasize, ret;
766
767	if(nOutBufferSize < sizeof(VOLUME_CONTROL) \|\| !pVol) {
768	SetLastError(ERROR_INSUFFICIENT_BUFFER);
769	return FALSE;
770	}
771	if(lpBytesReturned) {
772	*lpBytesReturned = 0;
773	}
774	parsize = 4;
775	datasize = 8;
776	ret = OSLibDosDevIOCtl(pHMHandleData->hHMHandle, 0x81, 0x60, drvInfo->signature, 4, &parsize,
777	volbuf, 8, &datasize);
778
779	if(ret) {
780	SetLastError(error2WinError(ret));
781	return FALSE;
782	}
783	if(lpBytesReturned) {
784	*lpBytesReturned = sizeof(VOLUME_CONTROL);
785	}
786	pVol->PortVolume[0] = volbuf[1];
787	pVol->PortVolume[1] = volbuf[3];
788	pVol->PortVolume[2] = volbuf[5];
789	pVol->PortVolume[3] = volbuf[7];
790	SetLastError(ERROR_SUCCESS);
791	return TRUE;
792	}
793
794	case IOCTL_CDROM_SET_VOLUME:
795	{
796	PVOLUME_CONTROL pVol = (PVOLUME_CONTROL)lpInBuffer;
797	char volbuf[8];
798	DWORD parsize, datasize, ret;
799
800	if(nInBufferSize < sizeof(VOLUME_CONTROL) \|\| !pVol) {
801	SetLastError(ERROR_INSUFFICIENT_BUFFER);
802	return FALSE;
803	}
804	if(lpBytesReturned) {
805	*lpBytesReturned = 0;
806	}
807	parsize = 4;
808	datasize = 8;
809	volbuf[0] = 0;
810	volbuf[1] = pVol->PortVolume[0];
811	volbuf[2] = 1;
812	volbuf[3] = pVol->PortVolume[1];
813	volbuf[4] = 2;
814	volbuf[5] = pVol->PortVolume[2];
815	volbuf[6] = 3;
816	volbuf[7] = pVol->PortVolume[3];
817	dprintf(("Set CD volume (%d,%d)(%d,%d)", pVol->PortVolume[0], pVol->PortVolume[1], pVol->PortVolume[2], pVol->PortVolume[3]));
818	ret = OSLibDosDevIOCtl(pHMHandleData->hHMHandle, 0x81, 0x40, drvInfo->signature, 4, &parsize,
819	volbuf, 8, &datasize);
820
821	if(ret) {
822	SetLastError(error2WinError(ret));
823	return FALSE;
824	}
825	SetLastError(ERROR_SUCCESS);
826	return TRUE;
827	}
828	case IOCTL_CDROM_READ_Q_CHANNEL:
829	case IOCTL_CDROM_GET_LAST_SESSION:
830	case IOCTL_CDROM_RAW_READ:
831	case IOCTL_CDROM_DISK_TYPE:
832	case IOCTL_CDROM_GET_DRIVE_GEOMETRY:
833	case IOCTL_CDROM_MEDIA_REMOVAL:
834	break;
835
836	case IOCTL_CDROM_EJECT_MEDIA:
837	{
838	dprintf(("Eject CDROM media"));
839	return ioctlCDROMSimple(pHMHandleData,
840	0x80, // IOCTL_CDROM
841	0x44, // CDROMDISK_EJECTDISK
842	lpBytesReturned, drvInfo);
843	}
844
845	case IOCTL_CDROM_LOAD_MEDIA:
846	{
847	dprintf(("Loading CDROM media"));
848	return ioctlCDROMSimple(pHMHandleData,
849	0x80, // IOCTL_CDROM
850	0x45, // CDROMDISK_CLOSETRAY
851	lpBytesReturned, drvInfo);
852	}
853
854	case IOCTL_CDROM_RESERVE:
855	case IOCTL_CDROM_RELEASE:
856	case IOCTL_CDROM_FIND_NEW_DEVICES:
857	break;
858
859
860	// -------------
861	// STORAGE class
862	// -------------
863
864	case IOCTL_CDROM_CHECK_VERIFY:
865	if(drvInfo->driveType != DRIVE_CDROM) {
866	SetLastError(ERROR_GEN_FAILURE); //TODO: right error?
867	return FALSE;
868	}
869	//no break;
870	case IOCTL_DISK_CHECK_VERIFY:
871	case IOCTL_STORAGE_CHECK_VERIFY:
872	{
873	dprintf(("IOCTL_CDROM(DISK/STORAGE)CHECK_VERIFY %s", drvInfo->signature));
874	if(lpBytesReturned) {
875	*lpBytesReturned = 0;
876	}
877	#pragma pack(1)
878	typedef struct
879	{
880	BYTE ucCommandInfo;
881	WORD usDriveUnit;
882	} ParameterBlock;
883	#pragma pack()
884
885	DWORD parsize = sizeof(ParameterBlock);
886	DWORD datasize = 2;
887	WORD status = 0;
888	DWORD rc;
889	ParameterBlock parm;
890
891	parm.ucCommandInfo = 0;
892	parm.usDriveUnit = drvInfo->driveLetter - 'A';
893	//IOCTL_DISK (0x08), DSK_GETLOCKSTATUS (0x66)
894	// rc = OSLibDosDevIOCtl(pHMHandleData->hHMHandle, 0x08, 0x66, &parm, sizeof(parm), &parsize,
895	//TODO: this doesn't work for floppies for some reason...
896	rc = OSLibDosDevIOCtl(-1, 0x08, 0x66, &parm, sizeof(parm), &parsize,
897	&status, sizeof(status), &datasize);
898	if(rc != NO_ERROR) {
899	dprintf(("OSLibDosDevIOCtl failed with rc %d datasize %d", rc, datasize));
900	return FALSE;
901	}
902	dprintf(("Disk status 0x%x", status));
903	//if no disk present, return FALSE
904	if(!(status & (BIT_2))) {
905	SetLastError(ERROR_NOT_READY); //NT4, SP6 returns this
906	return FALSE;
907	}
908	SetLastError(NO_ERROR);
909	return TRUE;
910	}
911
912	case IOCTL_DISK_EJECT_MEDIA:
913	case IOCTL_STORAGE_EJECT_MEDIA:
914	{
915	dprintf(("Ejecting storage media"));
916	return ioctlDISKUnlockEject(pHMHandleData,
917	0x02, // EJECT media
918	-1,
919	lpBytesReturned);
920	}
921
922	case IOCTL_STORAGE_GET_MEDIA_TYPES:
923	break;
924
925	case IOCTL_STORAGE_LOAD_MEDIA:
926	// case IOCTL_STORAGE_LOAD_MEDIA2:
927	{
928	dprintf(("Loading storage media"));
929	return ioctlDISKUnlockEject(pHMHandleData,
930	0x03, // LOAD media
931	-1,
932	lpBytesReturned);
933	}
934
935	// case IOCTL_STORAGE_EJECTION_CONTROL:
936	case IOCTL_STORAGE_MEDIA_REMOVAL:
937	break;
938
939
940	// -------------------
941	// SCSI passthru class
942	// -------------------
943
944	case IOCTL_SCSI_PASS_THROUGH:
945	case IOCTL_SCSI_MINIPORT:
946	case IOCTL_SCSI_GET_INQUIRY_DATA:
947	case IOCTL_SCSI_GET_CAPABILITIES:
948	break;
949
950	case IOCTL_SCSI_PASS_THROUGH_DIRECT:
951	{
952	PSCSI_PASS_THROUGH_DIRECT pPacket = (PSCSI_PASS_THROUGH_DIRECT)lpOutBuffer;
953	SRB_ExecSCSICmd *psrb;
954
955	if(drvInfo->hInstAspi == NULL) {
956	SetLastError(ERROR_ACCESS_DENIED);
957	return FALSE;
958	}
959
960	if(nOutBufferSize < sizeof(SCSI_PASS_THROUGH_DIRECT) \|\|
961	!pPacket \|\| pPacket->Length < sizeof(SCSI_PASS_THROUGH_DIRECT))
962	{
963	SetLastError(ERROR_INSUFFICIENT_BUFFER);
964	return FALSE;
965	}
966	if(lpBytesReturned) {
967	*lpBytesReturned = 0;
968	}
969	psrb = (SRB_ExecSCSICmd *)alloca(sizeof(SRB_ExecSCSICmd)+pPacket->SenseInfoLength);
970	if(psrb == NULL) {
971	dprintf(("not enough memory!!"));
972	SetLastError(ERROR_NOT_ENOUGH_MEMORY);
973	return FALSE;
974	}
975	memset(psrb, 0, sizeof(*psrb));
976	psrb->SRB_Cmd = SC_EXEC_SCSI_CMD;
977	psrb->SRB_Status = pPacket->ScsiStatus;
978	psrb->SRB_HaId = pPacket->PathId;
979	psrb->SRB_Target = pPacket->TargetId;
980	psrb->SRB_Lun = pPacket->Lun;
981	psrb->SRB_BufLen = pPacket->DataTransferLength;
982	psrb->SRB_SenseLen = pPacket->SenseInfoLength;
983	psrb->SRB_CDBLen = pPacket->CdbLength;
984	switch(pPacket->DataIn) {
985	case SCSI_IOCTL_DATA_OUT:
986	psrb->SRB_Flags = 0x2 << 3;
987	break;
988	case SCSI_IOCTL_DATA_IN:
989	psrb->SRB_Flags = 0x1 << 3;
990	break;
991	case SCSI_IOCTL_DATA_UNSPECIFIED:
992	psrb->SRB_Flags = 0x3 << 3;
993	break;
994	}
995	if(pPacket->CdbLength > 16) {
996	SetLastError(ERROR_INVALID_PARAMETER);
997	return FALSE;
998	}
999	dprintf(("IOCTL_SCSI_PASS_THROUGH_DIRECT %x", pPacket->Cdb[0]));
1000	psrb->SRB_BufPointer = (BYTE *)pPacket->DataBuffer;
1001	memcpy(&psrb->CDBByte[0], &pPacket->Cdb[0], 16);
1002	if(psrb->SRB_SenseLen) {
1003	memcpy(&psrb->SenseArea[0], (char *)pPacket + pPacket->SenseInfoOffset, psrb->SRB_SenseLen);
1004	}
1005	//TODO: pPacket->TimeOutValue ignored
1006	int rc = drvInfo->SendASPI32Command((LPSRB)psrb);
1007	if(rc != SS_COMP) {
1008	dprintf(("SendASPI32Command failed with error %d", rc));
1009	if(rc == SS_ERR) {
1010	SetLastError(ERROR_ADAP_HDW_ERR); //returned by NT4, SP6
1011	}
1012	else SetLastError(ERROR_GEN_FAILURE);
1013	return FALSE;
1014	}
1015	pPacket->ScsiStatus = rc;
1016	if(lpBytesReturned) {
1017	*lpBytesReturned = 0;
1018	}
1019	pPacket->DataTransferLength = psrb->SRB_BufLen;
1020	if(psrb->SRB_SenseLen) {
1021	memcpy((char *)pPacket + pPacket->SenseInfoOffset, &psrb->SenseArea[0], psrb->SRB_SenseLen);
1022	}
1023	SetLastError(ERROR_SUCCESS);
1024	return TRUE;
1025	}
1026	case IOCTL_SCSI_GET_ADDRESS:
1027	{
1028	DWORD numAdapters, rc;
1029	SRB srb;
1030	int i, j, k;
1031
1032	if(!lpOutBuffer \|\| nOutBufferSize < 8) {
1033	SetLastError(ERROR_INSUFFICIENT_BUFFER); //todo: right error?
1034	return(FALSE);
1035	}
1036	SCSI_ADDRESS addr = (SCSI_ADDRESS )lpOutBuffer;
1037	addr->Length = sizeof(SCSI_ADDRESS);
1038	addr->PortNumber = 0;
1039	addr->PathId = 0;
1040
1041	if(drvInfo->hInstAspi == NULL) {
1042	SetLastError(ERROR_ACCESS_DENIED);
1043	return FALSE;
1044	}
1045
1046	numAdapters = drvInfo->GetASPI32SupportInfo();
1047
1048	memset(&srb, 0, sizeof(srb));
1049	srb.common.SRB_Cmd = SC_HA_INQUIRY;
1050	rc = drvInfo->SendASPI32Command(&srb);
1051
1052	char drivename[3];
1053	drivename[0] = (char)drvInfo->driveLetter;
1054	drivename[1] = ':';
1055	drivename[2] = 0;
1056
1057	for(i=0;i<LOBYTE(numAdapters);i++) {
1058	for(j=0;j<8;j++) {
1059	for(k=0;k<16;k++) {
1060	memset(&srb, 0, sizeof(srb));
1061	srb.common.SRB_Cmd = SC_GET_DEV_TYPE;
1062	srb.devtype.SRB_HaId = i;
1063	srb.devtype.SRB_Target = j;
1064	srb.devtype.SRB_Lun = k;
1065	rc = drvInfo->SendASPI32Command(&srb);
1066	if(rc == SS_COMP) {
1067	if(srb.devtype.SRB_DeviceType == SS_DEVTYPE_CDROM &&
1068	GetDriveTypeA(drivename) == DRIVE_CDROM)
1069	{
1070	goto done;
1071	}
1072	}
1073	}
1074	}
1075	}
1076	done:
1077	if(rc == SS_COMP) {
1078	addr->TargetId = j;
1079	addr->Lun = k;
1080	SetLastError(ERROR_SUCCESS);
1081	}
1082	else SetLastError(ERROR_FILE_NOT_FOUND); //todo
1083	return TRUE;
1084	failure:
1085	SetLastError(ERROR_INVALID_PARAMETER); //todo
1086	return FALSE;
1087	}
1088
1089	case IOCTL_SCSI_RESCAN_BUS:
1090	case IOCTL_SCSI_GET_DUMP_POINTERS:
1091	case IOCTL_SCSI_FREE_DUMP_POINTERS:
1092	case IOCTL_IDE_PASS_THROUGH:
1093	break;
1094
1095	}
1096	dprintf(("HMDeviceDiskClass::DeviceIoControl: unimplemented dwIoControlCode=%08lx\n", dwIoControlCode));
1097	SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
1098	return FALSE;
1099	}
1100	/*****************************************************************************
1101	* Name : BOOL HMDeviceDiskClass::ReadFile
1102	* Purpose : read data from handle / device
1103	* Parameters: PHMHANDLEDATA pHMHandleData,
1104	* LPCVOID lpBuffer,
1105	* DWORD nNumberOfBytesToRead,
1106	* LPDWORD lpNumberOfBytesRead,
1107	* LPOVERLAPPED lpOverlapped
1108	* Variables :
1109	* Result : Boolean
1110	* Remark :
1111	* Status :
1112	*
1113	* Author : Patrick Haller [Wed, 1998/02/11 20:44]
1114	*****************************************************************************/
1115
1116	BOOL HMDeviceDiskClass::ReadFile(PHMHANDLEDATA pHMHandleData,
1117	LPCVOID lpBuffer,
1118	DWORD nNumberOfBytesToRead,
1119	LPDWORD lpNumberOfBytesRead,
1120	LPOVERLAPPED lpOverlapped)
1121	{
1122	LPVOID lpRealBuf;
1123	Win32MemMap *map;
1124	DWORD offset, bytesread;
1125	BOOL bRC;
1126
1127	dprintf2(("KERNEL32: HMDeviceDiskClass::ReadFile %s(%08x,%08x,%08x,%08x,%08x)",
1128	lpHMDeviceName,
1129	pHMHandleData,
1130	lpBuffer,
1131	nNumberOfBytesToRead,
1132	lpNumberOfBytesRead,
1133	lpOverlapped));
1134
1135	//SvL: It's legal for this pointer to be NULL
1136	if(lpNumberOfBytesRead)
1137	*lpNumberOfBytesRead = 0;
1138	else
1139	lpNumberOfBytesRead = &bytesread;
1140
1141	if((pHMHandleData->dwFlags & FILE_FLAG_OVERLAPPED) && !lpOverlapped) {
1142	dprintf(("FILE_FLAG_OVERLAPPED flag set, but lpOverlapped NULL!!"));
1143	SetLastError(ERROR_INVALID_PARAMETER);
1144	return FALSE;
1145	}
1146	if(!(pHMHandleData->dwFlags & FILE_FLAG_OVERLAPPED) && lpOverlapped) {
1147	dprintf(("Warning: lpOverlapped != NULL & !FILE_FLAG_OVERLAPPED; sync operation"));
1148	}
1149
1150	//SvL: DosRead doesn't like writing to memory addresses returned by
1151	// DosAliasMem -> search for original memory mapped pointer and use
1152	// that one + commit pages if not already present
1153	map = Win32MemMapView::findMapByView((ULONG)lpBuffer, &offset, MEMMAP_ACCESS_WRITE);
1154	if(map) {
1155	lpRealBuf = (LPVOID)((ULONG)map->getMappingAddr() + offset);
1156	DWORD nrpages = nNumberOfBytesToRead/4096;
1157	if(offset & 0xfff)
1158	nrpages++;
1159	if(nNumberOfBytesToRead & 0xfff)
1160	nrpages++;
1161
1162	map->commitPage(offset & ~0xfff, TRUE, nrpages);
1163	}
1164	else lpRealBuf = (LPVOID)lpBuffer;
1165
1166	if(pHMHandleData->dwFlags & FILE_FLAG_OVERLAPPED) {
1167	dprintf(("ERROR: Overlapped IO not yet implememented!!"));
1168	}
1169	// else {
1170	bRC = OSLibDosRead(pHMHandleData->hHMHandle,
1171	(PVOID)lpRealBuf,
1172	nNumberOfBytesToRead,
1173	lpNumberOfBytesRead);
1174	// }
1175
1176	if(bRC == 0) {
1177	dprintf(("KERNEL32: HMDeviceDiskClass::ReadFile returned %08xh %x", bRC, GetLastError()));
1178	dprintf(("%x -> %d", lpBuffer, IsBadWritePtr((LPVOID)lpBuffer, nNumberOfBytesToRead)));
1179	}
1180	else dprintf2(("KERNEL32: HMDeviceDiskClass::ReadFile read %x bytes", *lpNumberOfBytesRead));
1181
1182	return bRC;
1183	}
1184	/*****************************************************************************
1185	* Name : DWORD HMDeviceDiskClass::SetFilePointer
1186	* Purpose : set file pointer
1187	* Parameters: PHMHANDLEDATA pHMHandleData
1188	* LONG lDistanceToMove
1189	* PLONG lpDistanceToMoveHigh
1190	* DWORD dwMoveMethod
1191	* Variables :
1192	* Result : API returncode
1193	* Remark :
1194	* Status :
1195	*
1196	* Author : Patrick Haller [Wed, 1999/06/17 20:44]
1197	*****************************************************************************/
1198
1199	DWORD HMDeviceDiskClass::SetFilePointer(PHMHANDLEDATA pHMHandleData,
1200	LONG lDistanceToMove,
1201	PLONG lpDistanceToMoveHigh,
1202	DWORD dwMoveMethod)
1203	{
1204	DWORD ret;
1205
1206	dprintf2(("KERNEL32: HMDeviceDiskClass::SetFilePointer %s(%08xh,%08xh,%08xh,%08xh)\n",
1207	lpHMDeviceName,
1208	pHMHandleData,
1209	lDistanceToMove,
1210	lpDistanceToMoveHigh,
1211	dwMoveMethod));
1212
1213	ret = OSLibDosSetFilePointer(pHMHandleData->hHMHandle,
1214	lDistanceToMove,
1215	(DWORD *)lpDistanceToMoveHigh,
1216	dwMoveMethod);
1217
1218	if(ret == -1) {
1219	dprintf(("SetFilePointer failed (error = %d)", GetLastError()));
1220	}
1221	return ret;
1222	}
1223	//******************************************************************************
1224	//******************************************************************************

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