public void readPartitionTable()
{
currentPartitionList.Clear();
if (selected.diskname == null || selected.diskname == "")
{
return;
}
var mbr = DiskRW.read(selected.diskname, 0);
parse(mbr);
}
public static ErrorCode SetFileInfo(string drivename, FileInfo fat)
{
byte[] buffer = DiskRW.read(drivename, fat.Location);
//name
for (int i = 0; i < 63; i++)
{
buffer[i] = 0;
}
byte[] name = Encoding.Unicode.GetBytes(fat.Name);
name.CopyTo(buffer, 0);
name = Encoding.Unicode.GetBytes(fat.Extension);
name.CopyTo(buffer, 64);
//文件号 权限号 权限标记
buffer[77] = fat.Type;
buffer[78] = fat.AccessCode;
buffer[79] = fat.AccessMode;
//作者
name = Encoding.Unicode.GetBytes(fat.Author);
name.CopyTo(buffer, 80);
//最后修改人
name = Encoding.Unicode.GetBytes(fat.LastEditor);
name.CopyTo(buffer, 112);
//创建日期
buffer[144] = (byte)(fat.CreateTime);
buffer[145] = (byte)(fat.CreateTime >> 8);
buffer[146] = (byte)(fat.CreateTime >> 16);
buffer[147] = (byte)(fat.CreateTime >> 24);
//修改日期
buffer[148] = (byte)(fat.LastEditTime);
buffer[149] = (byte)(fat.LastEditTime >> 8);
buffer[150] = (byte)(fat.LastEditTime >> 16);
buffer[151] = (byte)(fat.LastEditTime >> 24);
//尾字节长
buffer[152] = (byte)fat.Rest;
buffer[153] = (byte)(fat.Rest >> 8);
bool res = DiskRW.write(drivename, fat.Location, buffer);
if (!res)
{
return(ErrorCode.Fail);
}
return(ErrorCode.Success);
}
/// <summary>
/// 获取卷信息
/// </summary>
/// <param name="drivename">驱动器名</param>
/// <param name="sectorstart">卷开始扇区</param>
/// <returns>卷信息结构体</returns>
static public VolumeInfo GetVolumeInfo(string drivename, UInt32 sectorstart)
{
VolumeInfo volumeinfo = new VolumeInfo();
byte[] content = DiskRW.read(drivename, sectorstart);
byte[] tmp = new byte[32];
Array.Copy(content, tmp, 32);
volumeinfo.VolumeName = System.Text.Encoding.Unicode.GetString(tmp);
UInt32 s1 = content[32];
UInt32 s2 = content[33];
UInt32 s3 = content[34];
UInt32 s4 = content[35];
volumeinfo.SectorStart = (s4 << 24) + (s3 << 16) + (s2 << 8) + s1;
s1 = content[36];
s2 = content[37];
s3 = content[38];
s4 = content[39];
volumeinfo.SectorCount = (s4 << 24) + (s3 << 16) + (s2 << 8) + s1;
volumeinfo.Cluster = (UInt16)(((UInt16)content[40]) << 9);
volumeinfo.VolumeLabel = content[41];
s1 = content[42];
s2 = content[43];
s3 = content[44];
s4 = content[45];
volumeinfo.FreeTableStart = (s4 << 24) + (s3 << 16) + (s2 << 8) + s1;
volumeinfo.EncryptionType = content[48];
return(volumeinfo);
}
void readPartitionTable()
{
currentPartitionList.Clear();
byte[] MBR = DiskRW.read(Data.DriveName, 0);
for (int i = 0, j = 0x1BE; i < 4; i++, j += 16)
{
var part = new Partition();
//起始扇区偏移
UInt32 s1 = MBR[8 + j];
UInt32 s2 = MBR[9 + j];
UInt32 s3 = MBR[10 + j];
UInt32 s4 = MBR[11 + j];
UInt32 temp = (s4 << 24) + (s3 << 16) + (s2 << 8) + s1;
part.StartSector = temp.ToString();
part.SS = temp;
//长度 (扇区)
s1 = MBR[12 + j];
s2 = MBR[13 + j];
s3 = MBR[14 + j];
s4 = MBR[15 + j];
temp = (s4 << 24) + (s3 << 16) + (s2 << 8) + s1;
part.SC = temp;
//长度为零说明没有这个分区
if (temp == 0)
{
continue;
}
part.SectorCount = temp.ToString();
currentPartitionList.Add(part);
}
}
