public static FileVerificationPacket Create(PacketHeader header, byte[] bytes, int index)
{
FileVerificationPacket tmpPacket = new FileVerificationPacket();
tmpPacket.header = header;
int offset = 0;
Buffer.BlockCopy(bytes, index + offset, tmpPacket.fileid, 0, tmpPacket.fileid.Length * sizeof(byte));
offset += tmpPacket.fileid.Length * sizeof(byte);
int nbEntries = ((int)header.length - header.GetSize() - (16 * sizeof(byte))) / FileVerificationEntry.GetSize();
tmpPacket.entries = new List <FileVerificationEntry>();
tmpPacket.blockcount = (ulong)((header.length - (ulong)tmpPacket.GetSize()) / (ulong)FileVerificationEntry.GetSize());
for (int i = 0; i < nbEntries; i++)
{
FileVerificationEntry entry = new FileVerificationEntry();
Buffer.BlockCopy(bytes, index + offset, entry.hash, 0, entry.hash.Length * sizeof(byte));
offset += entry.hash.Length * sizeof(byte);
entry.crc = BitConverter.ToUInt32(bytes, index + offset);
offset += sizeof(UInt32);
tmpPacket.entries.Add(entry);
}
return(tmpPacket);
}
public byte[] fileid = new byte[16]; // MD5hash of file_hash_16k, file_length, file_name
#endregion Fields
#region Methods
public static FileVerificationPacket Create(PacketHeader header, byte[] bytes, int index)
{
FileVerificationPacket tmpPacket = new FileVerificationPacket();
tmpPacket.header = header;
int offset = 0;
Buffer.BlockCopy(bytes, index + offset, tmpPacket.fileid, 0, tmpPacket.fileid.Length * sizeof(byte));
offset += tmpPacket.fileid.Length * sizeof(byte);
int nbEntries = ((int)header.length - header.GetSize() - (16 * sizeof(byte))) / FileVerificationEntry.GetSize();
tmpPacket.entries = new List<FileVerificationEntry>();
tmpPacket.blockcount = (ulong)((header.length - (ulong)tmpPacket.GetSize()) / (ulong)FileVerificationEntry.GetSize());
for (int i = 0; i < nbEntries; i++)
{
FileVerificationEntry entry = new FileVerificationEntry();
Buffer.BlockCopy(bytes, index + offset, entry.hash, 0, entry.hash.Length * sizeof(byte));
offset += entry.hash.Length * sizeof(byte);
entry.crc = BitConverter.ToUInt32(bytes, index + offset);
offset += sizeof(UInt32);
tmpPacket.entries.Add(entry);
}
return tmpPacket;
}
internal void SetBlockHashAndCRC(uint blocknumber, byte[] hash, uint crc)
{
Debug.Assert(blocknumber < blockcount);
// Store the block hash and block crc in the packet.
//FileVerificationEntry entry = entries[(int)blocknumber];
FileVerificationEntry entry = new FileVerificationEntry();
entry.hash = hash;
entry.crc = crc;
entries.Add(entry);
}
private void WriteObject(BinaryWriter bw, object obj)
{
switch (obj.GetType().ToString().ToLower())
{
case "system.string":
bw.Write(StrToByteArray((string)obj));
break;
case "system.uint64":
case "system.ulong":
bw.Write((ulong)obj);
break;
case "system.uint32":
bw.Write((uint)obj);
break;
case "system.byte[]":
bw.Write((byte[])obj);
break;
case "par2net.packets.fileverificationentry":
FileVerificationEntry entry = (FileVerificationEntry)obj;
bw.Write(entry.hash);
bw.Write(entry.crc);
break;
case "system.collections.generic.list`1[par2net.packets.fileverificationentry]":
foreach (FileVerificationEntry item in ((List <FileVerificationEntry>)obj))
{
bw.Write(item.hash);
bw.Write(item.crc);
}
break;
case "system.collections.generic.list`1[system.byte[]]":
foreach (byte[] item in ((List <byte[]>)obj))
{
bw.Write(item);
}
break;
default:
Debug.Assert(false);
throw new NotImplementedException(string.Format("Case '{0}' is not implemented for method 'WriteObject' of class CriticalPacket", obj.GetType()));
}
}
internal void SetBlockHashAndCRC(uint blocknumber, byte[] hash, uint crc)
{
Debug.Assert(blocknumber < blockcount);
// Store the block hash and block crc in the packet.
//FileVerificationEntry entry = entries[(int)blocknumber];
FileVerificationEntry entry = new FileVerificationEntry();
entry.hash = hash;
entry.crc = crc;
entries.Add(entry);
}
// Create a packet large enough for the specified number of blocks
internal static FileVerificationPacket Create(ulong _blockcount)
{
// Allocate a packet large enough to hold the required number of verification entries.
FileVerificationPacket tmpPacket = new FileVerificationPacket();
tmpPacket.blockcount = _blockcount;
// Record everything we know in the packet.
tmpPacket.header = new PacketHeader();
tmpPacket.header.magic = Par2FileReader.packet_magic;
tmpPacket.header.hash = new byte[16];
tmpPacket.header.setid = new byte[16];
tmpPacket.header.type = Par2FileReader.fileverificationpacket_type;
tmpPacket.fileid = new byte[16];
tmpPacket.entries = new List <FileVerificationEntry>((int)_blockcount);
tmpPacket.header.length = (ulong)tmpPacket.GetSize() + (_blockcount * (ulong)FileVerificationEntry.GetSize());
return(tmpPacket);
}
public int GetSize()
{
return(header.GetSize() + 16 * sizeof(byte) + (entries.Count * FileVerificationEntry.GetSize()));
}
