Clique: zero-fill extradata when the supplied value is less than 32 bytes in length (#10605)
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@ -67,6 +67,7 @@ use std::time;
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use std::time::{Duration, SystemTime, UNIX_EPOCH};
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use block::ExecutedBlock;
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use bytes::Bytes;
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use client::{BlockId, EngineClient};
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use engines::clique::util::{extract_signers, recover_creator};
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use engines::{Engine, EngineError, Seal};
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@ -713,6 +714,13 @@ impl Engine<EthereumMachine> for Clique {
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header.set_difficulty(DIFF_NOTURN);
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}
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}
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let zero_padding_len = VANITY_LENGTH - header.extra_data().len();
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if zero_padding_len > 0 {
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let mut resized_extra_data = header.extra_data().clone();
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resized_extra_data.resize(VANITY_LENGTH, 0);
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header.set_extra_data(resized_extra_data);
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}
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} else {
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trace!(target: "engine", "populate_from_parent: no signer registered");
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}
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