protected static FileInfoBaseStruct ReadFileInfoBaseStruct(byte[] buffer, int offset, out int nextOffset)
{
var fibs = new FileInfoBaseStruct
{
Length = BitConverter.ToInt16(buffer, offset),
ValueLength = BitConverter.ToInt16(buffer, offset + 2),
Type = BitConverter.ToInt16(buffer, offset + 4)
};
int len = FindLengthUnicodeSZ(buffer, offset + 6, offset + fibs.Length);
fibs.Key = Encoding.Unicode.GetString(buffer, offset + 6, len * 2);
// Padding
fibs.ValueOffset = ((offset + 6 + (len + 1) * 2) + 3) & (~3);
fibs.EndOffset = offset + fibs.Length;
nextOffset = (fibs.EndOffset + 3) & (~3);
return(fibs);
}
protected static IEnumerable <Tuple <uint, string, string> > ReadVersionInfoInternal(byte[] buffer, FileInfoBaseStruct fibs)
{
int sfiOrValOffset = (fibs.ValueOffset + fibs.ValueLength + 3) & (~3);
while (sfiOrValOffset < fibs.Length)
{
int nextSfiOrValOffset;
var sfiOrVal = ReadFileInfoBaseStruct(buffer, sfiOrValOffset, out nextSfiOrValOffset);
if (sfiOrVal.Key == "StringFileInfo")
{
int stOffset = sfiOrVal.ValueOffset;
while (stOffset < sfiOrVal.EndOffset)
{
int nextStOffset;
var st = ReadFileInfoBaseStruct(buffer, stOffset, out nextStOffset);
uint langCharset = uint.Parse(st.Key, NumberStyles.HexNumber);
int striOffset = st.ValueOffset;
while (striOffset < st.EndOffset)
{
int nextStriOffset;
var stri = ReadFileInfoBaseStruct(buffer, striOffset, out nextStriOffset);
// Here stri.ValueLength is in words!
int len = FindLengthUnicodeSZ(buffer, stri.ValueOffset, stri.ValueOffset + (stri.ValueLength * 2));
string value = Encoding.Unicode.GetString(buffer, stri.ValueOffset, len * 2);
yield return(Tuple.Create(langCharset, stri.Key, value));
striOffset = nextStriOffset;
}
stOffset = nextStOffset;
}
}
else if (sfiOrVal.Key == "VarFileInfo")
{
int varOffset = sfiOrVal.ValueOffset;
while (varOffset < sfiOrVal.EndOffset)
{
int nextVarOffset;
var var = ReadFileInfoBaseStruct(buffer, varOffset, out nextVarOffset);
if (var.Key != "Translation")
{
throw new Exception(var.Key);
}
int langOffset = var.ValueOffset;
while (langOffset < var.EndOffset)
{
unchecked
{
// We invert the order suggested by the Var description!
uint high = (uint)BitConverter.ToInt16(buffer, langOffset);
uint low = (uint)BitConverter.ToInt16(buffer, langOffset + 2);
uint lang = (high << 16) | low;
langOffset += 4;
}
}
varOffset = nextVarOffset;
}
}
else
{
Debug.WriteLine("Unrecognized " + sfiOrVal.Key);
}
sfiOrValOffset = nextSfiOrValOffset;
}
}