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node: use uint256::FromUserHex for -minimumchainwork parsing

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Removes dependency on unsafe and deprecated uint256S.

This makes parsing more strict, by returning an error
when the input contains more than 64 hex digits.
This commit is contained in:
stickies-v 2024-07-26 15:01:48 +01:00
parent 70e2c87737
commit 8a44d7d3c1
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3 changed files with 7 additions and 5 deletions
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7
src/node/chainstatemanager_args.cpp
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@ -32,10 +32,11 @@ util::Result<void> ApplyArgsManOptions(const ArgsManager& args, ChainstateManage
if (auto value{args.GetBoolArg("-checkpoints")}) opts.checkpoints_enabled = *value;
if (auto value{args.GetArg("-minimumchainwork")}) {
if (!IsHexNumber(*value)) {
return util::Error{strprintf(Untranslated("Invalid non-hex (%s) minimum chain work value specified"), *value)};
if (auto min_work{uint256::FromUserHex(*value)}) {
opts.minimum_chain_work = UintToArith256(*min_work);
} else {
return util::Error{strprintf(Untranslated("Invalid minimum work specified (%s), must be up to %d hex digits"), *value, uint256::size() * 2)};
}
opts.minimum_chain_work = UintToArith256(uint256S(*value));
}
if (auto value{args.GetArg("-assumevalid")}) opts.assumed_valid_block = uint256S(*value);