146 lines
2.6 KiB
C++
146 lines
2.6 KiB
C++
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#include "ulib.hxx"
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#include "chainio.hxx"
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#include "diskedit.h"
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#include "rfatsa.hxx"
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extern "C" {
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#include <stdio.h>
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}
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STATIC USHORT StartingCluster = 0;
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BOOLEAN
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CHAIN_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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REAL_FAT_SA fatsa;
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MESSAGE msg;
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proc = MakeProcInstance((FARPROC) ReadChain, Application);
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if (!DialogBox((HINSTANCE)Application, TEXT("ReadChainBox"),
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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 (!_drive ||
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!StartingCluster ||
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!fatsa.Initialize(_drive, &msg) ||
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!fatsa.FAT_SA::Read() ||
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!_cluster.Initialize(Mem, _drive, &fatsa,
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fatsa.GetFat(), StartingCluster)) {
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return FALSE;
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}
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_buffer = _cluster.GetBuf();
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_buffer_size = fatsa.QuerySectorsPerCluster()*_drive->QuerySectorSize()*
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_cluster.QueryLength();
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wsprintf(_header_text, TEXT("DiskEdit - Starting Cluster 0x%X"), StartingCluster);
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return TRUE;
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}
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BOOLEAN
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CHAIN_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 (!_cluster.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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CHAIN_IO::Write(
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)
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{
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return _drive ? _cluster.Write() : FALSE;
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}
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PVOID
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CHAIN_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 = _buffer_size;
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}
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return _buffer;
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}
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PTCHAR
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CHAIN_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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ReadChain(
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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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UNREFERENCED_PARAMETER(lParam);
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ULONG tmp;
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switch (message) {
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case WM_INITDIALOG:
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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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TCHAR buf[1024];
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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"), &tmp);
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StartingCluster = (USHORT) tmp;
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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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