public BinHexHeader(MacBinaryHeader header)
{
if (63 < header.FileNameLength || 1 > header.FileNameLength)
throw new ByteEncoderException(Resources.EncodersStrings.BinHexHeaderBadFileNameLength);
this.FileName = header.FileName;
version = 0;
fileType = header.FileType;
fileCreator = header.FileCreator;
finderFlags = 0;
this.DataForkLength = header.DataForkLength;
this.ResourceForkLength = header.ResourceForkLength;
this.GetBytes();
}
public override sealed void Convert(byte[] input, int inputIndex, int inputSize, byte[] output, int outputIndex, int outputSize, bool flush, out int inputUsed, out int outputUsed, out bool completed)
{
if (inputSize != 0) {
if (input == null)
throw new System.ArgumentNullException(nameof(input));
if (inputIndex < 0 || inputIndex >= input.Length)
throw new System.ArgumentOutOfRangeException(nameof(inputIndex));
if (inputSize < 0 || inputSize > input.Length - inputIndex)
throw new System.ArgumentOutOfRangeException(nameof(inputSize));
}
if (output == null)
throw new System.ArgumentNullException(nameof(output));
if (outputIndex < 0 || outputIndex >= output.Length)
throw new System.ArgumentOutOfRangeException(nameof(outputIndex));
if (outputSize < 1 || outputSize > output.Length - outputIndex)
throw new System.ArgumentOutOfRangeException(nameof(outputSize));
inputUsed = inputIndex;
outputUsed = outputIndex;
var inputTotal = 0;
if (encodedSize != 0) {
var count = System.Math.Min(encodedSize, outputSize);
System.Buffer.BlockCopy(encoded, encodedIndex, output, outputIndex, count);
outputSize -= count;
outputIndex += count;
encodedSize -= count;
if (encodedSize != 0) {
encodedIndex += count;
outputUsed = outputIndex - outputUsed;
inputUsed = 0;
completed = false;
return;
}
encodedIndex = 0;
}
var flag = true;
while (flag) {
flag = false;
switch (state) {
case BinHexUtils.State.Starting:
System.Buffer.BlockCopy(BinHexPrefix, 0, decoded, 0, BinHexPrefix.Length);
decodedIndex = 0;
decodedSize = BinHexPrefix.Length;
state = BinHexUtils.State.Prefix;
goto case 2;
case BinHexUtils.State.Prefix:
var count1 = System.Math.Min(decodedSize, outputSize);
System.Buffer.BlockCopy(decoded, decodedIndex, output, outputIndex, count1);
outputSize -= count1;
outputIndex += count1;
decodedSize -= count1;
if (decodedSize != 0) {
decodedIndex += count1;
break;
}
decodedIndex = 0;
previousByte = 256;
repeatCount = 0;
accumCount = 0;
lineOffset = 1;
lines = 0;
checksum = 0;
if (this.header != null) {
var bytes = header.GetBytes();
System.Buffer.BlockCopy(bytes, 0, decoded, 0, bytes.Length);
decodedSize = bytes.Length;
decodedIndex = 0;
macbinHeaderSize = 0;
} else {
macbinHeader = new byte[128];
macbinHeaderOffset = 0;
macbinHeaderSize = macbinHeader.Length;
}
state = BinHexUtils.State.Header;
goto case 4;
case BinHexUtils.State.Header:
if (macbinHeaderSize != 0) {
var count2 = System.Math.Min(macbinHeaderSize, inputSize);
System.Buffer.BlockCopy(input, inputIndex, macbinHeader, macbinHeaderOffset, count2);
macbinHeaderOffset += count2;
macbinHeaderSize -= count2;
inputIndex += count2;
inputSize -= count2;
if (macbinHeaderSize == 0) {
var header = new MacBinaryHeader(macbinHeader);
macbinHeader = null;
this.header = new BinHexHeader(header);
var bytes = this.header.GetBytes();
System.Buffer.BlockCopy(bytes, 0, decoded, 0, bytes.Length);
decodedSize = bytes.Length;
decodedIndex = 0;
} else
break;
}
var inputMax1 = decodedSize;
if (inputMax1 != 0) {
flag = true;
this.CompressAndEncode(decoded, ref decodedIndex, ref decodedSize, ref inputTotal, ref inputMax1, false, output, ref outputIndex, ref outputSize);
}
break;
case BinHexUtils.State.Data:
var inputMax2 = System.Math.Min(decodedSize, inputSize);
if (inputMax2 != 0) {
flag = true;
this.CompressAndEncode(input, ref inputIndex, ref inputSize, ref decodedSize, ref inputMax2, true, output, ref outputIndex, ref outputSize);
}
break;
case BinHexUtils.State.DataCRC:
if (macbinHeaderSize != 0) {
BinHexEncoder.IgnoreChunkFromInput(ref macbinHeaderSize, ref inputIndex, ref inputSize);
if (macbinHeaderSize != 0)
break;
}
var inputMax3 = decodedSize;
if (inputMax3 != 0) {
flag = true;
this.CompressAndEncode(decoded, ref decodedIndex, ref decodedSize, ref inputTotal, ref inputMax3, false, output, ref outputIndex, ref outputSize);
}
break;
case BinHexUtils.State.Resource:
var inputMax4 = System.Math.Min(decodedSize, inputSize);
if (inputMax4 != 0) {
flag = true;
this.CompressAndEncode(input, ref inputIndex, ref inputSize, ref decodedSize, ref inputMax4, true, output, ref outputIndex, ref outputSize);
}
break;
case BinHexUtils.State.ResourceCRC:
if (macbinHeaderSize != 0) {
BinHexEncoder.IgnoreChunkFromInput(ref macbinHeaderSize, ref inputIndex, ref inputSize);
if (macbinHeaderSize != 0)
break;
}
var inputMax5 = decodedSize;
if (inputMax5 != 0) {
flag = true;
this.CompressAndEncode(decoded, ref decodedIndex, ref decodedSize, ref inputTotal, ref inputMax5, false, output, ref outputIndex, ref outputSize);
}
break;
case BinHexUtils.State.Ending:
var count3 = System.Math.Min(decodedSize, outputSize);
System.Buffer.BlockCopy(decoded, decodedIndex, output, outputIndex, count3);
outputSize -= count3;
outputIndex += count3;
decodedSize -= count3;
if (decodedSize != 0) {
decodedIndex += count3;
break;
}
decodedIndex = 0;
state = BinHexUtils.State.Ended;
goto case 11;
case BinHexUtils.State.Ended:
macbinHeaderSize = inputSize;
BinHexEncoder.IgnoreChunkFromInput(ref macbinHeaderSize, ref inputIndex, ref inputSize);
break;
}
if (encodedSize != 0)
break;
}
if (flush && inputSize == 0 && (state != BinHexUtils.State.Ended && outputSize != 0))
throw new ByteEncoderException(Resources.EncodersStrings.BinHexEncoderDataCorruptCannotFinishEncoding);
outputUsed = outputIndex - outputUsed;
inputUsed = inputIndex - inputUsed;
completed = inputSize == 0 && (!flush || state == BinHexUtils.State.Ended);
if (!flush || !completed)
return;
state = BinHexUtils.State.Starting;
}
public BinHexEncoder(MacBinaryHeader header)
{
this.MacBinaryHeader = header;
}