\feffusing System;
+using System.Text;
+using System.Collections.Generic;
namespace Novacoin
{
+ /// <summary>
+ /// Transaction input.
+ /// </summary>
public class CTxIn
{
/// <summary>
/// <summary>
/// Parent input number.
/// </summary>
- public uint nInput;
+ public uint n = 0;
/// <summary>
/// First half of script, signatures for the scriptPubKey
/// </summary>
- public byte[] scriptSig;
+ public CScript scriptSig;
/// <summary>
/// Transaction variant number, irrelevant if nLockTime isn't specified. Its value is 0xffffffff by default.
/// </summary>
- public uint nSequence;
+ public uint nSequence = 0xffffffff;
- public CTxIn ()
+ /// <summary>
+ /// Initialize new CTxIn instance as copy of another one.
+ /// </summary>
+ /// <param name="i">CTxIn instance.</param>
+ public CTxIn(CTxIn i)
+ {
+ txID = i.txID;
+ n = i.n;
+ scriptSig = i.scriptSig;
+ nSequence = i.nSequence;
+ }
+
+ /// <summary>
+ /// Initialize an empty instance of CTxIn class
+ /// </summary>
+ public CTxIn()
+ {
+ txID = new Hash256();
+ scriptSig = new CScript();
+ }
+
+ /// <summary>
+ /// Read vin list from byte sequence.
+ /// </summary>
+ /// <param name="wBytes">Reference to byte sequence</param>
+ /// <returns>Inputs array</returns>
+ public static CTxIn[] ReadTxInList(ref WrappedList<byte> wBytes)
+ {
+ CTxIn[] vin;
+
+ // Get amount
+ int nInputs = (int)VarInt.ReadVarInt(ref wBytes);
+ vin = new CTxIn[nInputs];
+
+ for (int nIndex = 0; nIndex < nInputs; nIndex++)
+ {
+ // Fill inputs array
+ vin[nIndex] = new CTxIn();
+
+ vin[nIndex].txID = new Hash256(wBytes.GetItems(32));
+ vin[nIndex].n = BitConverter.ToUInt32(wBytes.GetItems(4), 0);
+ vin[nIndex].scriptSig = new CScript(wBytes.GetItems((int)VarInt.ReadVarInt(ref wBytes)));
+ vin[nIndex].nSequence = BitConverter.ToUInt32(wBytes.GetItems(4), 0);
+ }
+
+ // Return inputs array
+ return vin;
+ }
+
+ /// <summary>
+ /// Get raw bytes representation of our input.
+ /// </summary>
+ /// <returns>Byte sequence.</returns>
+ public IList<byte> Bytes
+ {
+ get
+ {
+ List<byte> inputBytes = new List<byte>();
+
+ inputBytes.AddRange(txID.hashBytes); // Input transaction id
+ inputBytes.AddRange(BitConverter.GetBytes(n)); // Output number
+
+ List<byte> s = new List<byte>(scriptSig.Bytes);
+
+ inputBytes.AddRange(VarInt.EncodeVarInt(s.Count)); // scriptSig length
+ inputBytes.AddRange(s); // scriptSig
+ inputBytes.AddRange(BitConverter.GetBytes(nSequence)); // Sequence
+
+ return inputBytes;
+ }
+ }
+
+ public bool IsCoinBase
+ {
+ get { return txID.IsZero; }
+ }
+
+ public override string ToString ()
{
+ StringBuilder sb = new StringBuilder ();
+
+ if (IsCoinBase)
+ {
+ sb.AppendFormat("CTxIn(txId={0}, coinbase={2}, nSequence={3})", txID.ToString(), n, Interop.ToHex(scriptSig.Bytes), nSequence);
+ }
+ else
+ {
+ sb.AppendFormat("CTxIn(txId={0}, n={1}, scriptSig={2}, nSequence={3})", txID.ToString(), n, scriptSig.ToString(), nSequence);
+ }
+
+ return sb.ToString ();
}
+
}
}