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Clique: zero-fill extradata when the supplied value is less than 32 bytes in length (#10605)

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jwasinger 2019-04-29 01:12:22 -07:00 committed by Hernando Castano
parent 28eb05f032
commit 64fd64fd6b
1 changed files with 8 additions and 0 deletions
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8
ethcore/src/engines/clique/mod.rs
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@ -67,6 +67,7 @@ use std::time;
use std::time::{Duration, SystemTime, UNIX_EPOCH}; use std::time::{Duration, SystemTime, UNIX_EPOCH};
use block::ExecutedBlock; use block::ExecutedBlock;
use bytes::Bytes;
use client::{BlockId, EngineClient}; use client::{BlockId, EngineClient};
use engines::clique::util::{extract_signers, recover_creator}; use engines::clique::util::{extract_signers, recover_creator};
use engines::{Engine, EngineError, Seal}; use engines::{Engine, EngineError, Seal};
@ -713,6 +714,13 @@ impl Engine<EthereumMachine> for Clique {
header.set_difficulty(DIFF_NOTURN); header.set_difficulty(DIFF_NOTURN);
} }
} }
let zero_padding_len = VANITY_LENGTH - header.extra_data().len();
if zero_padding_len > 0 {
let mut resized_extra_data = header.extra_data().clone();
resized_extra_data.resize(VANITY_LENGTH, 0);
header.set_extra_data(resized_extra_data);
}
} else { } else {
trace!(target: "engine", "populate_from_parent: no signer registered"); trace!(target: "engine", "populate_from_parent: no signer registered");
} }