Use fixed data types for some basic structures

[novacoin.git] / src / script.cpp

diff --git a/src/script.cpp b/src/script.cpp
index 4d3586a..7b25637 100644 (file)
--- a/src/script.cpp
+++ b/src/script.cpp
@@ -317,9 +317,9 @@ bool IsCanonicalSignature(const valtype &vchSig, unsigned int flags) {
     if (nLenS > 1 && (S[0] == 0x00) && !(S[1] & 0x80))
         return error("Non-canonical signature: S value excessively padded");
 
-    if (flags & SCRIPT_VERIFY_EVEN_S) {
-        if (S[nLenS-1] & 1)
-            return error("Non-canonical signature: S value odd");
+    if (flags & SCRIPT_VERIFY_LOW_S) {
+        if (!CKey::CheckSignatureElement(S, nLenS, true))
+            return error("Non-canonical signature: S value is unnecessarily high");
     }
 
     return true;
@@ -625,7 +625,7 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, co
                     // (xn ... x2 x1 x0 n - ... x2 x1 x0 xn)
                     if (stack.size() < 2)
                         return false;
-                    int n = CastToBigNum(stacktop(-1)).getint();
+                    int n = CastToBigNum(stacktop(-1)).getint32();
                     popstack(stack);
                     if (n < 0 || n >= (int)stack.size())
                         return false;
@@ -901,7 +901,7 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, co
                     if ((int)stack.size() < i)
                         return false;
 
-                    int nKeysCount = CastToBigNum(stacktop(-i)).getint();
+                    int nKeysCount = CastToBigNum(stacktop(-i)).getint32();
                     if (nKeysCount < 0 || nKeysCount > 20)
                         return false;
                     nOpCount += nKeysCount;
@@ -912,7 +912,7 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, co
                     if ((int)stack.size() < i)
                         return false;
 
-                    int nSigsCount = CastToBigNum(stacktop(-i)).getint();
+                    int nSigsCount = CastToBigNum(stacktop(-i)).getint32();
                     if (nSigsCount < 0 || nSigsCount > nKeysCount)
                         return false;
                     int isig = ++i;
@@ -1103,12 +1103,12 @@ public:
         // (~200 bytes per cache entry times 50,000 entries)
         // Since there are a maximum of 20,000 signature operations per block
         // 50,000 is a reasonable default.
-        int64 nMaxCacheSize = GetArg("-maxsigcachesize", 50000);
+        int64_t nMaxCacheSize = GetArg("-maxsigcachesize", 50000);
         if (nMaxCacheSize <= 0) return;
 
         boost::shared_lock<boost::shared_mutex> lock(cs_sigcache);
 
-        while (static_cast<int64>(setValid.size()) > nMaxCacheSize)
+        while (static_cast<int64_t>(setValid.size()) > nMaxCacheSize)
         {
             // Evict a random entry. Random because that helps
             // foil would-be DoS attackers who might try to pre-generate
@@ -1435,36 +1435,49 @@ public:
     bool operator()(const CScriptID &scriptID) const { return keystore->HaveCScript(scriptID); }
 };
 
-bool IsMine(const CKeyStore &keystore, const CTxDestination &dest)
+isminetype IsMine(const CKeyStore &keystore, const CTxDestination& dest)
 {
-    return boost::apply_visitor(CKeyStoreIsMineVisitor(&keystore), dest);
+    CScript script;
+    script.SetDestination(dest);
+    return IsMine(keystore, script);
 }
 
-bool IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
+isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
 {
     vector<valtype> vSolutions;
     txnouttype whichType;
-    if (!Solver(scriptPubKey, whichType, vSolutions))
-        return false;
+    if (!Solver(scriptPubKey, whichType, vSolutions)) {
+        if (keystore.HaveWatchOnly(scriptPubKey))
+            return MINE_WATCH_ONLY;
+        return MINE_NO;
+    }
 
     CKeyID keyID;
     switch (whichType)
     {
     case TX_NONSTANDARD:
     case TX_NULL_DATA:
-        return false;
+        break;
     case TX_PUBKEY:
         keyID = CPubKey(vSolutions[0]).GetID();
-        return keystore.HaveKey(keyID);
+        if (keystore.HaveKey(keyID))
+            return MINE_SPENDABLE;
+        break;
     case TX_PUBKEYHASH:
         keyID = CKeyID(uint160(vSolutions[0]));
-        return keystore.HaveKey(keyID);
+        if (keystore.HaveKey(keyID))
+            return MINE_SPENDABLE;
+        break;
     case TX_SCRIPTHASH:
     {
+        CScriptID scriptID = CScriptID(uint160(vSolutions[0]));
         CScript subscript;
-        if (!keystore.GetCScript(CScriptID(uint160(vSolutions[0])), subscript))
-            return false;
-        return IsMine(keystore, subscript);
+        if (keystore.GetCScript(scriptID, subscript)) {
+            isminetype ret = IsMine(keystore, subscript);
+            if (ret == MINE_SPENDABLE)
+                return ret;
+        }
+        break;
     }
     case TX_MULTISIG:
     {
@@ -1474,10 +1487,15 @@ bool IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
         // them) enable spend-out-from-under-you attacks, especially
         // in shared-wallet situations.
         vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1);
-        return HaveKeys(keys, keystore) == keys.size();
+        if (HaveKeys(keys, keystore) == keys.size())
+            return MINE_SPENDABLE;
+        break;
     }
     }
-    return false;
+
+    if (keystore.HaveWatchOnly(scriptPubKey))
+        return MINE_WATCH_ONLY;
+    return MINE_NO;
 }
 
 bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet)
@@ -1647,7 +1665,7 @@ bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CTransa
     }
 
     // Test solution
-    return VerifyScript(txin.scriptSig, fromPubKey, txTo, nIn, STANDARD_SCRIPT_VERIFY_FLAGS, 0);
+    return VerifyScript(txin.scriptSig, fromPubKey, txTo, nIn, STRICT_FLAGS, 0);
 }
 
 bool SignSignature(const CKeyStore &keystore, const CTransaction& txFrom, CTransaction& txTo, unsigned int nIn, int nHashType)