X-Git-Url: https://git.novaco.in/?p=NovacoinLibrary.git;a=blobdiff_plain;f=Novacoin%2FCScript.cs;h=8757bb74ae445273e62b947a04a3ff91e419cb5a;hp=e2e17e0ecd621db34e031c0713a7df8a97a73dad;hb=6c6e3b0c68e764ea520dde48d5e44c757f1dabbb;hpb=f1d2e217ae6e24a84edfa98ca3471a8a836ecaa7
diff --git a/Novacoin/CScript.cs b/Novacoin/CScript.cs
index e2e17e0..8757bb7 100644
--- a/Novacoin/CScript.cs
+++ b/Novacoin/CScript.cs
@@ -352,14 +352,14 @@ namespace Novacoin
///
/// Legacy mode flag
/// Amount of sigops
- public int GetSigOpCount(bool fAccurate)
+ public uint GetSigOpCount(bool fAccurate)
{
var wCodeBytes = new ByteQueue(codeBytes);
instruction opcode; // Current instruction
byte[] pushArgs; // OP_PUSHDATAn argument
- int nCount = 0;
+ uint nCount = 0;
var lastOpcode = instruction.OP_INVALIDOPCODE;
// Scan instructions sequence
@@ -373,7 +373,7 @@ namespace Novacoin
{
if (fAccurate && lastOpcode >= instruction.OP_1 && lastOpcode <= instruction.OP_16)
{
- nCount += ScriptCode.DecodeOP_N(lastOpcode);
+ nCount += (uint)ScriptCode.DecodeOP_N(lastOpcode);
}
else
{
@@ -391,7 +391,7 @@ namespace Novacoin
///
/// pay-to-script-hash scriptPubKey
/// SigOps count
- public int GetSigOpCount(CScript scriptSig)
+ public uint GetSigOpCount(CScript scriptSig)
{
if (!IsPayToScriptHash)
{
@@ -402,12 +402,19 @@ namespace Novacoin
// get the last item that the scriptSig
// pushes onto the stack:
ByteQueue wScriptSig = scriptSig.GetByteQueue();
+ int nScriptSigSize = scriptSig.Size;
instruction opcode; // Current instruction
- byte[] pushArgs; // OP_PUSHDATAn argument
+ byte[] pushArgs = new byte[0]; // OP_PUSHDATAn argument
+
- while (ScriptCode.GetOp(ref wScriptSig, out opcode, out pushArgs))
+ while (wScriptSig.Index < nScriptSigSize)
{
+ if (!ScriptCode.GetOp(ref wScriptSig, out opcode, out pushArgs))
+ {
+ return 0;
+ }
+
if (opcode > instruction.OP_16)
{
return 0;