| static private GetCheckSumOctalBytes ( long value, byte buffer, int offset, int length ) : void | ||
| value | long | |
| buffer | byte | The header buffer to set the checksum for |
| offset | int | The offset into the buffer for the checksum |
| length | int | The number of header bytes to update. /// It's formatted differently from the other fields: it has 6 digits, a /// null, then a space -- rather than digits, a space, then a null. /// The final space is already there, from checksumming /// |
| return | void | |
public void WriteHeader(byte[] outBuffer)
{
if (outBuffer == null)
{
throw new ArgumentNullException("outBuffer");
}
int i = 0;
i = TarHeader.GetNameBytes(this.Name, outBuffer, i, 100);
i = TarHeader.GetOctalBytes((long)this.mode, outBuffer, i, 8);
i = TarHeader.GetOctalBytes((long)this.UserId, outBuffer, i, 8);
i = TarHeader.GetOctalBytes((long)this.GroupId, outBuffer, i, 8);
long value = this.Size;
i = TarHeader.GetLongOctalBytes(value, outBuffer, i, 12);
i = TarHeader.GetLongOctalBytes((long)TarHeader.GetCTime(this.ModTime), outBuffer, i, 12);
int offset = i;
for (int j = 0; j < 8; j++)
{
outBuffer[i++] = 32;
}
outBuffer[i++] = this.TypeFlag;
i = TarHeader.GetNameBytes(this.LinkName, outBuffer, i, 100);
i = TarHeader.GetAsciiBytes(this.Magic, 0, outBuffer, i, 6);
i = TarHeader.GetNameBytes(this.Version, outBuffer, i, 2);
i = TarHeader.GetNameBytes(this.UserName, outBuffer, i, 32);
i = TarHeader.GetNameBytes(this.GroupName, outBuffer, i, 32);
if (this.TypeFlag == 51 || this.TypeFlag == 52)
{
i = TarHeader.GetOctalBytes((long)this.DevMajor, outBuffer, i, 8);
i = TarHeader.GetOctalBytes((long)this.DevMinor, outBuffer, i, 8);
}
while (i < outBuffer.Length)
{
outBuffer[i++] = 0;
}
this.checksum = TarHeader.ComputeCheckSum(outBuffer);
TarHeader.GetCheckSumOctalBytes((long)this.checksum, outBuffer, offset, 8);
this.isChecksumValid = true;
}