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16656a85cf
We're not using the change_outnum for withdraw tx's (and the way we were calculating it was broken as of the addition of 'multiple outputs'). This removes the change output knowhow from withdraw_tx entirely, and pushes the responsibility up to the caller to include the change output in the output set if desired. Consequently, we also remove the change output knowhow from hsmd.
38 lines
1015 B
C
38 lines
1015 B
C
#include "withdraw_tx.h"
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#include <assert.h>
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#include <bitcoin/pubkey.h>
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#include <bitcoin/script.h>
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#include <ccan/ptrint/ptrint.h>
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#include <common/key_derive.h>
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#include <common/permute_tx.h>
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#include <common/utils.h>
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#include <common/utxo.h>
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#include <string.h>
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#include <wally_bip32.h>
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struct bitcoin_tx *withdraw_tx(const tal_t *ctx,
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const struct chainparams *chainparams,
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const struct utxo **utxos,
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struct bitcoin_tx_output **outputs,
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const struct ext_key *bip32_base,
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u32 nlocktime)
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{
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struct bitcoin_tx *tx;
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int output_count;
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tx = tx_spending_utxos(ctx, chainparams, utxos, bip32_base,
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false, tal_count(outputs), nlocktime,
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BITCOIN_TX_DEFAULT_SEQUENCE - 1);
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output_count = bitcoin_tx_add_multi_outputs(tx, outputs);
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assert(output_count == tal_count(outputs));
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permute_outputs(tx, NULL, (const void **)outputs);
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permute_inputs(tx, (const void **)utxos);
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bitcoin_tx_finalize(tx);
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assert(bitcoin_tx_check(tx));
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return tx;
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}
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