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Add bool PSBTInputSigned

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Refactor out a "PSBTInputSigned" function to check if a PSBT is signed,
for use in subsequent commits.

Also improve a related comment.
This commit is contained in:
Glenn Willen
2018-10-26 15:28:48 -07:00
parent 65166d4cf8
commit 53e6fffb8f
3 changed files with 14 additions and 4 deletions
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src/script/sign.h
+3
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@@ -730,6 +730,9 @@ bool ProduceSignature(const SigningProvider& provider, const BaseSignatureCreato
bool SignSignature(const SigningProvider &provider, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, const CAmount& amount, int nHashType);
bool SignSignature(const SigningProvider &provider, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType);
/** Checks whether a PSBTInput is already signed. */
bool PSBTInputSigned(PSBTInput& input);
/** Signs a PSBTInput, verifying that all provided data matches what is being signed. */
bool SignPSBTInput(const SigningProvider& provider, const CMutableTransaction& tx, PSBTInput& input, int index, int sighash = SIGHASH_ALL);