public FinderInfo(FileStream fr)
{
var br = new BinaryReader(fr);
fr.Position += 34;// Finder Info ヘッダ本体？（読み飛ばし）
if (!br.ReadBytes(4).SequenceEqual(new byte[] { (byte)'A', (byte)'T', (byte)'T', (byte)'R' }))
{
throw new ArgumentException();
}
br.ReadInt32();// debug_tag
Length = FromBE(br.ReadUInt32());
var data_start = FromBE(br.ReadUInt32());
var data_length = FromBE(br.ReadUInt32());
fr.Position += 12;
var flag = FromBE(br.ReadUInt16());
var attrCount = FromBE(br.ReadUInt16());
var attrHeaders = new List <AttrHeader>();
for (uint i = 0; i < attrCount; ++i)
{
var header = new AttrHeader();
header.offset = FromBE(br.ReadUInt32());
header.length = FromBE(br.ReadUInt32());
br.ReadUInt16(); //flags
var namelen = br.ReadByte();
header.name = Encoding.UTF8.GetString(br.ReadBytes(namelen - 1)); // 0終端
if (br.ReadByte() != 0)
{
throw new ArgumentException();
}
fr.Position += 3 - ((11 + namelen + 3) % 4);
attrHeaders.Add(header);
}
foreach (var header in attrHeaders)
{
fr.Seek(header.offset, SeekOrigin.Begin);
Attrs.Add(new Attr(header.name, br.ReadBytes((int)header.length)));
}
}
public FinderInfo(FileStream fr) {
var br = new BinaryReader(fr);
fr.Position += 34;// Finder Info ヘッダ本体？（読み飛ばし）
if (!br.ReadBytes(4).SequenceEqual(new byte[] { (byte)'A', (byte)'T', (byte)'T', (byte)'R' })) throw new ArgumentException();
br.ReadInt32();// debug_tag
Length = FromBE(br.ReadUInt32());
var data_start = FromBE(br.ReadUInt32());
var data_length = FromBE(br.ReadUInt32());
fr.Position += 12;
var flag = FromBE(br.ReadUInt16());
var attrCount = FromBE(br.ReadUInt16());
var attrHeaders = new List<AttrHeader>();
for (uint i = 0; i < attrCount; ++i) {
var header = new AttrHeader();
header.offset = FromBE(br.ReadUInt32());
header.length = FromBE(br.ReadUInt32());
br.ReadUInt16();//flags
var namelen = br.ReadByte();
header.name = Encoding.UTF8.GetString(br.ReadBytes(namelen - 1));// 0終端
if (br.ReadByte() != 0) throw new ArgumentException();
fr.Position += 3 - ((11 + namelen + 3) % 4);
attrHeaders.Add(header);
}
foreach(var header in attrHeaders) {
fr.Seek(header.offset, SeekOrigin.Begin);
Attrs.Add(new Attr(header.name, br.ReadBytes((int)header.length)));
}
}
