rpc: deduplicate WriteHDKeypath() used in decodepsbt #19555

pull theStack wants to merge 1 commits into bitcoin:master from theStack:20200719-rpc-dedup-writehdkeypath changing 1 files +1 −19

theStack commented at 3:55 PM on July 19, 2020: member

The functionality is already provided in the BIP32 utility library util/bip32.h with the exact same name and function signature.

rpc: deduplicate WriteHDKeypath() used in decodepsbt

The functionality is already provided in the BIP32 utility library util/bip32.h
with the exact same name and function signature.

55057ffc51

DrahtBot added the label RPC/REST/ZMQ on Jul 19, 2020
DrahtBot commented at 12:04 AM on July 20, 2020: member


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Conflicts

Reviewers, this pull request conflicts with the following ones:
- #18531 (rpc: Assert that RPCArg names are equal to CRPCCommand ones by MarcoFalke)
If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.
instagibbs commented at 1:43 PM on July 20, 2020: member

concept ACK

for reviewers this is the utility outstanding after this PR: https://github.com/bitcoin/bitcoin/blob/master/src/util/bip32.cpp#L53-L66

Exposing my bit-shift noobery, but why does it shift the path value left then right? https://github.com/bitcoin/bitcoin/blob/master/src/util/bip32.cpp#L57
theStack commented at 1:58 PM on July 20, 2020: member

Exposing my bit-shift noobery, but why does it shift the path value left then right? https://github.com/bitcoin/bitcoin/blob/master/src/util/bip32.cpp#L57

That is done to clear the most-significant bit (Bit 31 for an uint32_t), i.e. should be identical to the expression i & ~0x80000000.
instagibbs commented at 2:01 PM on July 20, 2020: member

Oh duh(should have re-read bip32 bip)

utACK https://github.com/bitcoin/bitcoin/pull/19555/commits/55057ffc51697daafac1224664d5e3258ae0b116
jonatack commented at 2:29 PM on July 20, 2020: member

ACK 55057ffc51697daafac1224664d5e3258ae0b116

Good find.

According to git blame the remaining version of this function was added in e7652d3 in Nov 2018.
achow101 commented at 3:58 PM on July 20, 2020: member

ACK 55057ffc51697daafac1224664d5e3258ae0b116
fanquake merged this on Jul 21, 2020
fanquake closed this on Jul 21, 2020
theStack deleted the branch on Dec 1, 2020
Fabcien referenced this in commit 67d8646457 on Sep 2, 2021
DrahtBot locked this on Feb 15, 2022

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rpc: deduplicate WriteHDKeypath() used in decodepsbt #19555

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