internal static void SaveFileUCFB(string name, byte[] data)
{
byte[] encodedLen = BinUtils.EncodeNumber(data.Length);
byte[] buffer = new byte[8];
buffer[0] = (byte)'u';
buffer[1] = (byte)'c';
buffer[2] = (byte)'f';
buffer[3] = (byte)'b';
buffer[4] = encodedLen[0];
buffer[5] = encodedLen[1];
buffer[6] = encodedLen[2];
buffer[7] = encodedLen[3];
FileStream fs = null;
try
{
fs = new FileStream(name, FileMode.OpenOrCreate);
fs.Write(buffer, 0, buffer.Length);
fs.Write(data, 0, data.Length);
}
catch (Exception ex)
{
Program.MessageUser("Error Saving file: " + name + "\n" + ex.Message);
}
finally
{
if (fs != null)
{
fs.Close();
}
}
}
public void ReplaceUcfbChunk(Chunk chk, byte[] mungedFileBytes, bool replaceFirstOnly)
{
uint bytesLeftInFile = InitializeRead();
string curType = PeekChunkType();
string curName = PeekName(mCurrentPos + 8, curType);
string cur = curName + "." + curType;
string target = chk.Name + "." + chk.Type;
//while ( RipChunk(false) != null )
do
{
curType = PeekChunkType();
if (string.IsNullOrEmpty(curType))
{
break;
}
curName = PeekName(mCurrentPos + 8, curType);
cur = curName + "." + curType;
//}
if (target.Equals(cur, StringComparison.CurrentCultureIgnoreCase))
{
// we've advanced to the correct place
uint chunk_start = mCurrentPos;
uint chunk_end = PeekNumber(mCurrentPos + 4) + mCurrentPos + 8;
int mungedContentLength = mungedFileBytes.Length - 8;
uint chunk_len = chunk_end - chunk_start;
int difference = (int)(chunk_len - (mungedContentLength));
int newLength = mData.Length - difference;
byte[] newData = new byte[newLength];
Array.Copy(mData, 0, newData, 0, chunk_start /*- 1*/); // copy first chunk
Array.Copy(mungedFileBytes, 8, newData, chunk_start, mungedFileBytes.Length - 8); //splice
long next_start = chunk_start + mungedFileBytes.Length - 8; // MAYBE +1 ?
if (mData.Length - chunk_end != 0)
{
Array.Copy(mData, chunk_end, newData, next_start, (mData.Length - chunk_end) - 1);
}
mData = newData;
//Update UCFB Header
byte[] encodedLen = BinUtils.EncodeNumber(mData.Length - 8);
mData[4] = encodedLen[0];
mData[5] = encodedLen[1];
mData[6] = encodedLen[2];
mData[7] = encodedLen[3];
if (replaceFirstOnly)
{
break;
}
}
} while (RipChunk(false) != null);
}