public static CreatorPacket Create(PacketHeader header, byte[] bytes, int index)
{
CreatorPacket tmpPacket = new CreatorPacket();
tmpPacket.header = header;
int offset = 0;
// Name is specific to read since it's dependant of packet.length
int name_offset = index + offset;
int name_size = (int)header.length - header.GetSize();
byte[] name = new byte[name_size];
Buffer.BlockCopy(bytes, name_offset, name, 0, name_size);
tmpPacket.client = ToolKit.ByteArrayToString(name);
return tmpPacket;
}
public static CreatorPacket Create(PacketHeader header, byte[] bytes, int index)
{
CreatorPacket tmpPacket = new CreatorPacket();
tmpPacket.header = header;
int offset = 0;
// Name is specific to read since it's dependant of packet.length
int name_offset = index + offset;
int name_size = (int)header.length - header.GetSize();
byte[] name = new byte[name_size];
Buffer.BlockCopy(bytes, name_offset, name, 0, name_size);
tmpPacket.client = ToolKit.ByteArrayToString(name);
return(tmpPacket);
}
public static CreatorPacket Create(byte[] setid)
{
//string creator = string.Format("Created by {0} version {1}.", Par2Library.PACKAGE, Par2Library.VERSION);
string creator = "Created by par2cmdline version 0.4.";
string pad = new string(new char[4 - (creator.Length % 4)]);
CreatorPacket tmpPacket = new CreatorPacket();
// Fill in the details the we know
tmpPacket.header = new PacketHeader();
tmpPacket.header.magic = Par2FileReader.packet_magic;
tmpPacket.header.hash = new byte[16]; // Compute later
tmpPacket.header.setid = setid;
tmpPacket.header.type = Par2FileReader.creatorpacket_type;
tmpPacket.client = creator + pad;
tmpPacket.header.length = (ulong)(tmpPacket.GetSize());
// Compute the packet hash
using (MemoryStream ms = new MemoryStream())
{
using (BinaryWriter bw = new BinaryWriter(ms))
{
bw.Write(tmpPacket.header.setid);
bw.Write(tmpPacket.header.type);
bw.Write(Encoding.UTF8.GetBytes(tmpPacket.client));
}
byte[] buffer = ms.ToArray();
// Compute the fileid from the hash, length, and name fields in the packet.
MD5 md5Hasher = MD5.Create();
tmpPacket.header.hash = md5Hasher.ComputeHash(buffer);
}
return tmpPacket;
}
public static CreatorPacket Create(byte[] setid)
{
//string creator = string.Format("Created by {0} version {1}.", Par2Library.PACKAGE, Par2Library.VERSION);
string creator = "Created by par2cmdline version 0.4.";
string pad = new string(new char[4 - (creator.Length % 4)]);
CreatorPacket tmpPacket = new CreatorPacket();
// Fill in the details the we know
tmpPacket.header = new PacketHeader();
tmpPacket.header.magic = Par2FileReader.packet_magic;
tmpPacket.header.hash = new byte[16]; // Compute later
tmpPacket.header.setid = setid;
tmpPacket.header.type = Par2FileReader.creatorpacket_type;
tmpPacket.client = creator + pad;
tmpPacket.header.length = (ulong)(tmpPacket.GetSize());
// Compute the packet hash
using (MemoryStream ms = new MemoryStream())
{
using (BinaryWriter bw = new BinaryWriter(ms))
{
bw.Write(tmpPacket.header.setid);
bw.Write(tmpPacket.header.type);
bw.Write(Encoding.UTF8.GetBytes(tmpPacket.client));
}
byte[] buffer = ms.ToArray();
// Compute the fileid from the hash, length, and name fields in the packet.
MD5 md5Hasher = MD5.Create();
tmpPacket.header.hash = md5Hasher.ComputeHash(buffer);
}
return(tmpPacket);
}
