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Change from an HD wallet now goes to a newly derived phrase-backed key instead of reusing a spent input's key. Reusing an input key silently moved value back to a key the phrase cannot reproduce; if derivation fails the transaction is refused rather than creating unrecoverable change. Legacy wallets with no seed keep the 0.1.0 behaviour. Restore also scans past the pre-generated key-pool window before treating an empty batch as the end.
The message parser no longer consumes a header it cannot complete: it reads from a copy, so the O(n) reinsert and the 100 ms sleep inside the shared message thread are gone, and a peer that sits on an incomplete payload is disconnected after two minutes. The wire cap drops from 256 MB to MAX_SIZE. New net-message self-test covers complete, incomplete, stale and oversized headers.
Verified here: clean rebuild, all self-tests pass, lock order checked (no path takes cs_keyPool before cs_mapWallet), and a node built from this branch synced from genesis to the chain tip on the live network with zero rejections.
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does not cover (#104)
Follow-up to #102. Reserves derivation index 0 before deriving it, so a failure between installing the seed and writing the default key cannot leave the pool free to hand that index out as an ordinary key. Renames the address that stops being the default to 'Your Address (created before the recovery phrase)', which was otherwise left under the same name as the new one. Also documents why the key-pool clear precedes the seed write, correcting a review comment of mine that asked for the reverse.
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-newphrase installed a seed but left the wallet's visible address as the pre-seed random key and the old random pool intact, so the next address handed out -- a mining payout included -- could be one the twelve words cannot reproduce, while the window said a recovery phrase existed. Installing a phrase now clears the stale pool records (private keys stay in wallet.dat), reserves a derived default receiving key, tolerates already-stored derived keys so repeated installs do not stall the pool, and -restorephrase reports what it recovered rather than the wallet's total transaction count. Self-test covers installing a phrase over a pre-existing random pool.
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Adds -newphrase, -restorephrase, -restoredepth, -newaddress and -showderived, plus the window buttons that reach the same code. Restore derives forward in batches of 100 and rescans after each, stopping when a whole batch turns up nothing; the phrase is shown on the terminal only, never in debug.log. Proved end to end on a live wallet: paid a derived address, deleted wallet.dat, restored from the twelve words and recovered the coin. Coins on the pre-seed default address do not come back, and the command says so.
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Adds BIP32 derivation behind the wallet key pool, with no user-facing way to create a seed yet. wallet.dat gains hdmaster/hdchaincode/hdnext; the mnemonic is never stored. TopUpKeyPool derives m/n' when a seed exists and falls back to a random key, with a log line, if derivation fails. New -selftest=wallet-hd, wired into make tests on both platforms.
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On Windows the self-test from #91 printed nothing. printf in this tree is
OutputDebugStringF, which writes to the data directory debug.log, and the
Windows binary is linked -mwindows with no console. A failure was still caught,
since a non-zero return stops make, but it arrived with no way to tell which
check failed.
And because the first line printed before strSetDataDir pointed at the temporary
directory, every line was appended to the real debug.log -- the file users are
asked to paste into issues.
The file now gets the real printf, the data directory is set before anything
prints, and on Windows a console is borrowed only when stdout has nowhere to go.
That last condition matters: the first version reopened stdout unconditionally
and took the output away from `make tests > log`, which is the case that counts.
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Co-authored-by: Gilcimar Duarte <ti@gpm.infra>
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