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Merge #12167: Make segwit failure due to CLEANSTACK violation return a SCRIPT_ERR_CLEANSTACK error code

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1e747e3c1e Make segwit failure due to CLEANSTACK violation return a SCRIPT_ERR_CLEANSTACK error code. (Mark Friedenbach)

Pull request description:

  If a segwit script terminates with a stack size not equal to one, the current error code is EVAL_FALSE. This is semantically wrong, and prevents explicitly checking CLEANSTACK violations in the unit tests. This PR changes the error code (and affected unit tests) to use SCRIPT_ERROR_CLEANSTACK instead of SCRIPT_ERROR_EVAL_FALSE.

Tree-SHA512: 8f7b1650f7a23a942cde1070e3e56420be456b4a7be42515b237e95557bf2bd5e7ba9aabd213c8092bea28c165dbe73f5a3486300089aeb01e698151b42484b1
This commit is contained in:
Pieter Wuille
2018-04-04 17:18:57 -07:00
parent bfaed1ab2e 1e747e3c1e
commit 88430cbab4
2 changed files with 15 additions and 15 deletions
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2
src/script/interpreter.cpp
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@@ -1402,7 +1402,7 @@ static bool VerifyWitnessProgram(const CScriptWitness& witness, int witversion,
// Scripts inside witness implicitly require cleanstack behaviour
if (stack.size() != 1)
return set_error(serror, SCRIPT_ERR_EVAL_FALSE);
return set_error(serror, SCRIPT_ERR_CLEANSTACK);
if (!CastToBool(stack.back()))
return set_error(serror, SCRIPT_ERR_EVAL_FALSE);
return true;