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 /// |
리턴 | 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; }