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Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

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Colin Finck 2017-10-03 07:45:34 +00:00
parent b94e2d8ca0
commit c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
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135
boot/freeldr/install/volume.c Normal file
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/*
* FreeLoader - volume.c
*
* Copyright (C) 2001 Brian Palmer <brianp@sginet.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <windows.h>
#include <stdio.h>
#include <tchar.h>
#include "volume.h"
static HANDLE hDiskVolume = NULL;
BOOL OpenVolume(LPCTSTR lpszVolumeName)
{
TCHAR RealVolumeName[MAX_PATH];
//
// If they passed in a drive letter (e.g. "A:")
// then try to open the physical device volume,
// otherwise we will assume it is a disk image
// file they are writing to. (not fully supported yet)
//
if ((_tcslen(lpszVolumeName) == 2) && (lpszVolumeName[1] == _T(':')))
{
_tcscpy(RealVolumeName, _T("\\\\.\\"));
_tcscat(RealVolumeName, lpszVolumeName);
}
else
{
_tcscpy(RealVolumeName, lpszVolumeName);
}
_tprintf(_T("Opening volume \'%s\'\n"), lpszVolumeName);
hDiskVolume = CreateFile(RealVolumeName,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
if (hDiskVolume == INVALID_HANDLE_VALUE)
{
_tprintf(_T("%s:%d: "), __FILE__, __LINE__);
_tprintf(_T("Failed. Error code %ld.\n"), GetLastError());
return FALSE;
}
return TRUE;
}
void CloseVolume(void)
{
CloseHandle(hDiskVolume);
}
BOOL ReadVolumeSector(ULONG SectorNumber, PVOID SectorBuffer)
{
DWORD dwNumberOfBytesRead;
DWORD dwFilePosition;
BOOL bRetVal;
//
// FIXME: this doesn't seem to handle the situation
// properly when SectorNumber is bigger than the
// amount of sectors on the disk. Seems to me that
// the call to SetFilePointer() should just give an
// out of bounds error or something but it doesn't.
//
dwFilePosition = SetFilePointer(hDiskVolume, (SectorNumber * 512), NULL, FILE_BEGIN);
if (dwFilePosition != (SectorNumber * 512))
{
_tprintf(_T("%s:%d: "), __FILE__, __LINE__);
_tprintf(_T("SetFilePointer() failed. Error code %ld.\n"), GetLastError());
return FALSE;
}
bRetVal = ReadFile(hDiskVolume, SectorBuffer, 512, &dwNumberOfBytesRead, NULL);
if (!bRetVal || (dwNumberOfBytesRead != 512))
{
_tprintf(_T("%s:%d: "), __FILE__, __LINE__);
_tprintf(_T("ReadFile() failed. Error code %ld.\n"), GetLastError());
return FALSE;
}
return TRUE;
}
BOOL WriteVolumeSector(ULONG SectorNumber, PVOID SectorBuffer)
{
DWORD dwNumberOfBytesWritten;
DWORD dwFilePosition;
BOOL bRetVal;
//
// FIXME: this doesn't seem to handle the situation
// properly when SectorNumber is bigger than the
// amount of sectors on the disk. Seems to me that
// the call to SetFilePointer() should just give an
// out of bounds error or something but it doesn't.
//
dwFilePosition = SetFilePointer(hDiskVolume, (SectorNumber * 512), NULL, FILE_BEGIN);
if (dwFilePosition != (SectorNumber * 512))
{
_tprintf(_T("%s:%d: "), __FILE__, __LINE__);
_tprintf(_T("SetFilePointer() failed. Error code %ld.\n"), GetLastError());
return FALSE;
}
bRetVal = WriteFile(hDiskVolume, SectorBuffer, 512, &dwNumberOfBytesWritten, NULL);
if (!bRetVal || (dwNumberOfBytesWritten != 512))
{
_tprintf(_T("%s:%d: "), __FILE__, __LINE__);
_tprintf(_T("WriteFile() failed. Error code %ld.\n"), GetLastError());
return FALSE;
}
return TRUE;
}