| public static ParseOctal ( byte header, int offset, int length ) : long | ||
| header | byte | The header buffer from which to parse. |
| offset | int | The offset into the buffer from which to parse. |
| length | int | The number of header bytes to parse. |
| return | long | |
/// <summary>
/// Parse TarHeader information from a header buffer.
/// </summary>
/// <param name = "header">
/// The tar entry header buffer to get information from.
/// </param>
public void ParseBuffer(byte[] header)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
int offset = 0;
name = TarHeader.ParseName(header, offset, TarHeader.NAMELEN).ToString();
offset += TarHeader.NAMELEN;
mode = (int)TarHeader.ParseOctal(header, offset, TarHeader.MODELEN);
offset += TarHeader.MODELEN;
UserId = (int)TarHeader.ParseOctal(header, offset, TarHeader.UIDLEN);
offset += TarHeader.UIDLEN;
GroupId = (int)TarHeader.ParseOctal(header, offset, TarHeader.GIDLEN);
offset += TarHeader.GIDLEN;
Size = TarHeader.ParseOctal(header, offset, TarHeader.SIZELEN);
offset += TarHeader.SIZELEN;
ModTime = GetDateTimeFromCTime(TarHeader.ParseOctal(header, offset, TarHeader.MODTIMELEN));
offset += TarHeader.MODTIMELEN;
checksum = (int)TarHeader.ParseOctal(header, offset, TarHeader.CHKSUMLEN);
offset += TarHeader.CHKSUMLEN;
TypeFlag = header[offset++];
LinkName = TarHeader.ParseName(header, offset, TarHeader.NAMELEN).ToString();
offset += TarHeader.NAMELEN;
Magic = TarHeader.ParseName(header, offset, TarHeader.MAGICLEN).ToString();
offset += TarHeader.MAGICLEN;
Version = TarHeader.ParseName(header, offset, TarHeader.VERSIONLEN).ToString();
offset += TarHeader.VERSIONLEN;
UserName = TarHeader.ParseName(header, offset, TarHeader.UNAMELEN).ToString();
offset += TarHeader.UNAMELEN;
GroupName = TarHeader.ParseName(header, offset, TarHeader.GNAMELEN).ToString();
offset += TarHeader.GNAMELEN;
DevMajor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN);
offset += TarHeader.DEVLEN;
DevMinor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN);
// Fields past this point not currently parsed or used...
isChecksumValid = Checksum == TarHeader.MakeCheckSum(header);
}
private static long ParseBinaryOrOctal(byte[] header, int offset, int length)
{
if (header[offset] >= 128)
{
long num = 0L;
for (int i = length - 8; i < length; i++)
{
num = (num << 8 | (long)header[offset + i]);
}
return(num);
}
return(TarHeader.ParseOctal(header, offset, length));
}
/// <summary>
/// Parse TarHeader information from a header buffer.
/// </summary>
/// <param name = "header">
/// The tar entry header buffer to get information from.
/// </param>
public void ParseBuffer(byte[] header)
{
int offset = 0;
name = TarHeader.ParseName(header, offset, TarHeader.NAMELEN);
offset += TarHeader.NAMELEN;
mode = (int)TarHeader.ParseOctal(header, offset, TarHeader.MODELEN);
offset += TarHeader.MODELEN;
userId = (int)TarHeader.ParseOctal(header, offset, TarHeader.UIDLEN);
offset += TarHeader.UIDLEN;
groupId = (int)TarHeader.ParseOctal(header, offset, TarHeader.GIDLEN);
offset += TarHeader.GIDLEN;
size = TarHeader.ParseOctal(header, offset, TarHeader.SIZELEN);
offset += TarHeader.SIZELEN;
modTime = GetDateTimeFromCTime(TarHeader.ParseOctal(header, offset, TarHeader.MODTIMELEN));
offset += TarHeader.MODTIMELEN;
checkSum = (int)TarHeader.ParseOctal(header, offset, TarHeader.CHKSUMLEN);
offset += TarHeader.CHKSUMLEN;
typeFlag = header[offset++];
linkName = TarHeader.ParseName(header, offset, TarHeader.NAMELEN);
offset += TarHeader.NAMELEN;
magic = TarHeader.ParseName(header, offset, TarHeader.MAGICLEN);
offset += TarHeader.MAGICLEN;
version = TarHeader.ParseName(header, offset, TarHeader.VERSIONLEN);
offset += TarHeader.VERSIONLEN;
userName = TarHeader.ParseName(header, offset, TarHeader.UNAMELEN);
offset += TarHeader.UNAMELEN;
groupName = TarHeader.ParseName(header, offset, TarHeader.GNAMELEN);
offset += TarHeader.GNAMELEN;
devMajor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN);
offset += TarHeader.DEVLEN;
devMinor = (int)TarHeader.ParseOctal(header, offset, TarHeader.DEVLEN);
// Fields past this point not currently parsed or used...
}
public void ParseBuffer(byte[] header)
{
if (header == null)
{
throw new ArgumentNullException("header");
}
int num = 0;
this.name = TarHeader.ParseName(header, num, 100).ToString();
num += 100;
this.mode = (int)TarHeader.ParseOctal(header, num, 8);
num += 8;
this.UserId = (int)TarHeader.ParseOctal(header, num, 8);
num += 8;
this.GroupId = (int)TarHeader.ParseOctal(header, num, 8);
num += 8;
this.Size = TarHeader.ParseBinaryOrOctal(header, num, 12);
num += 12;
this.ModTime = TarHeader.GetDateTimeFromCTime(TarHeader.ParseOctal(header, num, 12));
num += 12;
this.checksum = (int)TarHeader.ParseOctal(header, num, 8);
num += 8;
this.TypeFlag = header[num++];
this.LinkName = TarHeader.ParseName(header, num, 100).ToString();
num += 100;
this.Magic = TarHeader.ParseName(header, num, 6).ToString();
num += 6;
if (this.Magic == "ustar")
{
this.Version = TarHeader.ParseName(header, num, 2).ToString();
num += 2;
this.UserName = TarHeader.ParseName(header, num, 32).ToString();
num += 32;
this.GroupName = TarHeader.ParseName(header, num, 32).ToString();
num += 32;
this.DevMajor = (int)TarHeader.ParseOctal(header, num, 8);
num += 8;
this.DevMinor = (int)TarHeader.ParseOctal(header, num, 8);
num += 8;
string text = TarHeader.ParseName(header, num, 155).ToString();
if (!string.IsNullOrEmpty(text))
{
this.Name = text + '/' + this.Name;
}
}
this.isChecksumValid = (this.Checksum == TarHeader.MakeCheckSum(header));
}
