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initial_commit_tx, commit_tx: add anchor outputs if needed.

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This also means we subtract 660 satoshis more everywhere we subtract
the base fee (except for mutual close, where the base fee is still
used).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2020-08-14 03:17:02 +09:30
parent 222d018b1a
commit e7423888ba
11 changed files with 268 additions and 30 deletions
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4
common/initial_commit_tx.h
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@@ -132,4 +132,8 @@ u8 *to_self_wscript(const tal_t *ctx,
/* To-other is simply: scriptpubkey_p2wpkh(tx, keyset->other_payment_key) */
/* If we determine we need one, append this anchor output */
void tx_add_anchor_output(struct bitcoin_tx *tx,
const struct pubkey *funding_key);
#endif /* LIGHTNING_COMMON_INITIAL_COMMIT_TX_H */