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Merge pull request #5143

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da918ac Make SCRIPT_VERIFY_CLEANSTACK a standardness requirement (Pieter Wuille)
b6e03cc Add SCRIPT_VERIFY_CLEANSTACK (BIP62 rule 6) (Pieter Wuille)
ae4151b No semantic change: reuse stack variable in P2SH evaluation (Pieter Wuille)
This commit is contained in:
Wladimir J. van der Laan
2015-01-08 12:00:19 +01:00
parent e3f5727590 da918ac06e
commit 48e1765e27
8 changed files with 80 additions and 13 deletions
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8
src/script/interpreter.h
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@@ -67,8 +67,14 @@ enum
// discouraged NOPs fails the script. This verification flag will never be
// a mandatory flag applied to scripts in a block. NOPs that are not
// executed, e.g. within an unexecuted IF ENDIF block, are *not* rejected.
SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS = (1U << 7)
SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS = (1U << 7),
// Require that only a single stack element remains after evaluation. This changes the success criterion from
// "At least one stack element must remain, and when interpreted as a boolean, it must be true" to
// "Exactly one stack element must remain, and when interpreted as a boolean, it must be true".
// (softfork safe, BIP62 rule 6)
// Note: CLEANSTACK should never be used without P2SH.
SCRIPT_VERIFY_CLEANSTACK = (1U << 8),
};
uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType);