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-rw-r--r--src/script/standard.h37
1 files changed, 33 insertions, 4 deletions
diff --git a/src/script/standard.h b/src/script/standard.h
index 8df143a3a3..fa07ea88c1 100644
--- a/src/script/standard.h
+++ b/src/script/standard.h
@@ -64,6 +64,7 @@ enum txnouttype
TX_NULL_DATA, //!< unspendable OP_RETURN script that carries data
TX_WITNESS_V0_SCRIPTHASH,
TX_WITNESS_V0_KEYHASH,
+ TX_WITNESS_UNKNOWN, //!< Only for Witness versions not already defined above
};
class CNoDestination {
@@ -72,14 +73,42 @@ public:
friend bool operator<(const CNoDestination &a, const CNoDestination &b) { return true; }
};
+struct WitnessV0ScriptHash : public uint256 {};
+struct WitnessV0KeyHash : public uint160 {};
+
+//! CTxDestination subtype to encode any future Witness version
+struct WitnessUnknown
+{
+ unsigned int version;
+ unsigned int length;
+ unsigned char program[40];
+
+ friend bool operator==(const WitnessUnknown& w1, const WitnessUnknown& w2) {
+ if (w1.version != w2.version) return false;
+ if (w1.length != w2.length) return false;
+ return std::equal(w1.program, w1.program + w1.length, w2.program);
+ }
+
+ friend bool operator<(const WitnessUnknown& w1, const WitnessUnknown& w2) {
+ if (w1.version < w2.version) return true;
+ if (w1.version > w2.version) return false;
+ if (w1.length < w2.length) return true;
+ if (w1.length > w2.length) return false;
+ return std::lexicographical_compare(w1.program, w1.program + w1.length, w2.program, w2.program + w2.length);
+ }
+};
+
/**
* A txout script template with a specific destination. It is either:
* * CNoDestination: no destination set
- * * CKeyID: TX_PUBKEYHASH destination
- * * CScriptID: TX_SCRIPTHASH destination
+ * * CKeyID: TX_PUBKEYHASH destination (P2PKH)
+ * * CScriptID: TX_SCRIPTHASH destination (P2SH)
+ * * WitnessV0ScriptHash: TX_WITNESS_V0_SCRIPTHASH destination (P2WSH)
+ * * WitnessV0KeyHash: TX_WITNESS_V0_KEYHASH destination (P2WPKH)
+ * * WitnessUnknown: TX_WITNESS_UNKNOWN destination (P2W???)
* A CTxDestination is the internal data type encoded in a bitcoin address
*/
-typedef boost::variant<CNoDestination, CKeyID, CScriptID> CTxDestination;
+typedef boost::variant<CNoDestination, CKeyID, CScriptID, WitnessV0ScriptHash, WitnessV0KeyHash, WitnessUnknown> CTxDestination;
/** Check whether a CTxDestination is a CNoDestination. */
bool IsValidDestination(const CTxDestination& dest);
@@ -104,7 +133,7 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::v
* Parse a standard scriptPubKey for the destination address. Assigns result to
* the addressRet parameter and returns true if successful. For multisig
* scripts, instead use ExtractDestinations. Currently only works for P2PK,
- * P2PKH, and P2SH scripts.
+ * P2PKH, P2SH, P2WPKH, and P2WSH scripts.
*/
bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet);