Function bitcoin_wscript_to_local

bitcoin/script.c:542–558

BOLT #3: * * This output sends funds back to the owner of this commitment transaction and * thus must be timelocked using `OP_CHECKSEQUENCEVERIFY`. It can be claimed, without delay, * by the other party if they know the revocation private key. The output is a * version-0 P2WSH, with a witness script: * * OP_IF * # Penalty transaction * * OP_ELSE

 *  OP_CHECKSIG
 */
u8 *bitcoin_wscript_to_local(const tal_t *ctx, u16 to_self_delay,
			     u32 lease_remaining,
			     const struct pubkey *revocation_pubkey,
			     const struct pubkey *local_delayedkey)
{
	u8 *script = tal_arr(ctx, u8, 0);
	add_op(&script, OP_IF);
	add_push_key(&script, revocation_pubkey);
	add_op(&script, OP_ELSE);
	add_number(&script, max_unsigned(lease_remaining, to_self_delay));
	add_op(&script, OP_CHECKSEQUENCEVERIFY);
	add_op(&script, OP_DROP);
	add_push_key(&script, local_delayedkey);
	add_op(&script, OP_ENDIF);
	add_op(&script, OP_CHECKSIG);
	return script;
}

/* BOLT #3:
 *