/**
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * Novacoin classes library
+ * Copyright (C) 2015 Alex D. (balthazar.ad@gmail.com)
+
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
namespace Novacoin
{
/// <summary>
- /// Script opcodes
+ /// Script instructions
/// </summary>
public enum instruction
{
}
/// <summary>
- /// Get the name of supplied opcode
+ /// Get the name of instruction
/// </summary>
- /// <param name="opcode">Opcode</param>
- /// <returns>Opcode name</returns>
+ /// <param name="opcode">Instruction</param>
+ /// <returns>Instruction name</returns>
public static string GetOpName(instruction opcode)
{
if (opcode == instruction.OP_0) // OP_0 and OP_FALSE are synonyms
}
/// <summary>
- /// Get next opcode from passed list of bytes and extract push arguments if there are some.
+ /// Get next instruction from list of bytes and extract push arguments if there are some.
/// </summary>
/// <param name="codeBytes">ByteQueue reference.</param>
- /// <param name="opcodeRet">Found opcode.</param>
+ /// <param name="opcodeRet">Found instruction.</param>
/// <param name="bytesRet">IEnumerable out param which is used to get the push arguments.</param>
/// <returns>Result of operation</returns>
public static bool GetOp(ref ByteQueue codeBytes, out instruction opcodeRet, out byte[] bytesRet)
// Immediate operand
if (opcode <= instruction.OP_PUSHDATA4)
{
- byte[] szBytes = new byte[4] { 0, 0, 0, 0 }; // Zero length
+ var szBytes = new byte[4] { 0, 0, 0, 0 }; // Zero length
try
{
if (opcode < instruction.OP_PUSHDATA1)
{
- // Zero value opcodes (OP_0, OP_FALSE)
+ // Zero value instructions (OP_0, OP_FALSE)
szBytes[3] = (byte)opcode;
}
else if (opcode == instruction.OP_PUSHDATA1)
/// <summary>
/// Decode instruction to integer value
/// </summary>
- /// <param name="opcode">Small integer opcode (OP_1_NEGATE and OP_0 - OP_16)</param>
+ /// <param name="opcode">Small integer instruction (OP_1_NEGATE and OP_0 - OP_16)</param>
/// <returns>Small integer</returns>
public static int DecodeOP_N(instruction opcode, bool AllowNegate = false)
{
return 0;
}
- // Only OP_n opcodes are supported, throw exception otherwise.
+ // Only OP_n instructions are supported, throw exception otherwise.
if (opcode < instruction.OP_1 || opcode > instruction.OP_16)
{
throw new ArgumentException("Invalid integer instruction.");
/// Converts integer into instruction
/// </summary>
/// <param name="n">Small integer from the range of -1 up to 16.</param>
- /// <returns>Corresponding opcode.</returns>
+ /// <returns>Corresponding instruction.</returns>
public static instruction EncodeOP_N(int n, bool allowNegate = false)
{
if (allowNegate && n == -1)
// Sender provides N pubkeys, receivers provides M signatures
// N [pubkey1] [pubkey2] ... [pubkeyN] M OP_CHECKMULTISIG
- // Where N and M are small integer opcodes (OP1 ... OP_16)
+ // Where N and M are small integer instructions (OP1 ... OP_16)
templateTuples.Add(
new Tuple<txnouttype, byte[]>(
txnouttype.TX_MULTISIG,
break;
}
- // Template matching opcodes:
+ // Template matching instructions:
if (opcode2 == instruction.OP_PUBKEYS)
{
while (args1.Count() >= 33 && args1.Count() <= 120)
// In case concatenating two scripts ends up with two codeseparators,
// or an extra one at the end, this prevents all those possible incompatibilities.
- script.RemovePattern(new byte[] { (byte)instruction.OP_CODESEPARATOR });
+ script.RemoveInstruction(instruction.OP_CODESEPARATOR);
// Blank out other inputs' signatures
for (int i = 0; i < txTmp.vin.Length; i++)
Array.Resize(ref txTmp.vin, 1);
}
- // Serialize and hash
- var b = new List<byte>();
- b.AddRange(txTmp.Bytes);
- b.AddRange(BitConverter.GetBytes(nHashType));
+ // Concatenate and hash
+ var txBytes = txTmp.Bytes;
+ var nHashTypeBytes = BitConverter.GetBytes(nHashType);
- return Hash256.Compute256(b);
+ return Hash256.Compute256(ref txBytes, ref nHashTypeBytes);
}
//
switch (opcode)
{
//
- // Disabled opcodes
+ // Disabled instructions
//
case instruction.OP_CAT:
case instruction.OP_SUBSTR:
return false;
}
- byte[] sigBytes = stacktop(ref stack, -2);
- byte[] pubkeyBytes = stacktop(ref stack, -1);
+ var sigBytes = stacktop(ref stack, -2);
+ var pubkeyBytes = stacktop(ref stack, -1);
// Subset of script starting at the most recent codeseparator
- CScript scriptCode = new CScript(script.Bytes.Skip(nCodeHashBegin));
+ var scriptCode = new CScript(script.Bytes.Skip(nCodeHashBegin).ToArray());
// There's no way for a signature to sign itself
scriptCode.RemovePattern(sigBytes);
}
// Subset of script starting at the most recent codeseparator
- CScript scriptCode = new CScript(script.Bytes.Skip(nCodeHashBegin));
+ var scriptCode = new CScript(script.Bytes.Skip(nCodeHashBegin).ToArray());
// There is no way for a signature to sign itself, so we need to drop the signatures
for (int k = 0; k < nSigsCount; k++)
git://git.novaco.in / NovacoinLibrary.git / blobdiff