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bitcoin: fix tx weight calculation when there are no witnesses, but will be.

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We had an out-by-two error when calculating weights, because we grab weights
on unsigned txs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2022-01-12 13:41:58 +10:30
committed by Christian Decker
parent 4dafeede5c
commit 59f1749967
2 changed files with 13 additions and 2 deletions
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2
bitcoin/tx.h
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@@ -57,7 +57,7 @@ void wally_txid(const struct wally_tx *wtx, struct bitcoin_txid *txid);
u8 *linearize_tx(const tal_t *ctx, const struct bitcoin_tx *tx);
u8 *linearize_wtx(const tal_t *ctx, const struct wally_tx *wtx);
/* Get weight of tx in Sipa. */
/* Get weight of tx in Sipa; assumes it will have witnesses! */
size_t bitcoin_tx_weight(const struct bitcoin_tx *tx);
size_t wally_tx_weight(const struct wally_tx *wtx);