165 lines
3.1 KiB
C++
165 lines
3.1 KiB
C++
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#include "ulib.hxx"
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#include "ntfssa.hxx"
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#include "clusio.hxx"
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#include "diskedit.h"
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extern "C" {
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#include <stdio.h>
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}
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STATIC ULONG StartCluster = 0;
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STATIC ULONG NumClusters = 1;
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BOOLEAN
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CLUSTER_IO::Setup(
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IN PMEM Mem,
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IN PLOG_IO_DP_DRIVE Drive,
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IN HANDLE Application,
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IN HWND WindowHandle,
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OUT PBOOLEAN Error
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)
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{
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FARPROC proc;
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HMEM mem;
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MESSAGE msg;
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proc = MakeProcInstance((FARPROC) ReadClusters, Application);
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if (!DialogBox((HINSTANCE)Application, TEXT("ReadClustersBox"),
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WindowHandle, (DLGPROC) proc)) {
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*Error = FALSE;
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return FALSE;
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}
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FreeProcInstance(proc);
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*Error = TRUE;
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_drive = Drive;
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if (!NumClusters || !_drive) {
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return FALSE;
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}
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PPACKED_BOOT_SECTOR p;
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BIOS_PARAMETER_BLOCK bpb;
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ULONG ClusterFactor;
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//
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// Read the boot sector.
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//
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if (!_secrun.Initialize(&mem, _drive, 0, 1) || !_secrun.Read()) {
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return FALSE;
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}
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p = (PPACKED_BOOT_SECTOR)_secrun.GetBuf();
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UnpackBios(&bpb, &(p->PackedBpb));
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ClusterFactor = bpb.SectorsPerCluster;
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if (!_secrun.Initialize(Mem, _drive,
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StartCluster*ClusterFactor,
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NumClusters*ClusterFactor)) {
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return FALSE;
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}
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swprintf(_header_text, TEXT("DiskEdit - Cluster 0x%X for 0x%X"), StartCluster, NumClusters);
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return TRUE;
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}
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BOOLEAN
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CLUSTER_IO::Read(
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OUT PULONG pError
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)
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{
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*pError = 0;
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if (NULL == _drive) {
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return FALSE;
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}
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if (!_secrun.Read()) {
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*pError = _drive->QueryLastNtStatus();
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return FALSE;
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}
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return TRUE;
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}
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BOOLEAN
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CLUSTER_IO::Write(
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)
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{
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return _drive ? _secrun.Write() : FALSE;
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}
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PVOID
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CLUSTER_IO::GetBuf(
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OUT PULONG Size
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)
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{
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if (Size) {
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*Size = _drive ? (_drive->QuerySectorSize()*_secrun.QueryLength()) : 0;
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}
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return _secrun.GetBuf();
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}
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PTCHAR
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CLUSTER_IO::GetHeaderText(
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)
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{
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return _header_text;
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}
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BOOL
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ReadClusters(
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IN HWND hDlg,
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IN UINT message,
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IN UINT wParam,
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IN LONG lParam
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)
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{
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TCHAR buf[1024];
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switch (message) {
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case WM_INITDIALOG:
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wsprintf(buf, TEXT("%x"), StartCluster);
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SetDlgItemText(hDlg, IDTEXT, buf);
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wsprintf(buf, TEXT("%x"), NumClusters);
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SetDlgItemText(hDlg, IDTEXT2, buf);
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return TRUE;
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case WM_COMMAND:
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if (LOWORD(wParam) == IDCANCEL) {
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EndDialog(hDlg, FALSE);
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return TRUE;
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}
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if (LOWORD(wParam) == IDOK) {
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INT n;
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n = GetDlgItemText(hDlg, IDTEXT, buf, sizeof(buf)/sizeof(TCHAR));
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buf[n] = 0;
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swscanf(buf, TEXT("%x"), &StartCluster);
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n = GetDlgItemText(hDlg, IDTEXT2, buf, sizeof(buf)/sizeof(TCHAR));
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buf[n] = 0;
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swscanf(buf, TEXT("%x"), &NumClusters);
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EndDialog(hDlg, TRUE);
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return TRUE;
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}
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break;
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}
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return FALSE;
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}
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