mirror of
https://github.com/ElementsProject/lightning.git
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91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
#include <assert.h>
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#include <bitcoin/psbt.h>
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#include <ccan/tal/tal.h>
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#include <string.h>
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#include <wally_psbt.h>
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#include <wally_transaction.h>
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#define MAKE_ROOM(arr, pos, num) \
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memmove((arr) + (pos) + 1, (arr) + (pos), \
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sizeof(*(arr)) * ((num) - ((pos) + 1)))
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#define REMOVE_ELEM(arr, pos, num) \
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memmove((arr) + (pos), (arr) + (pos) + 1, \
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sizeof(*(arr)) * ((num) - ((pos) + 1)))
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struct wally_psbt_input *psbt_add_input(struct wally_psbt *psbt,
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struct wally_tx_input *input,
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size_t insert_at)
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{
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struct wally_tx *tx;
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struct wally_tx_input tmp_in;
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tx = psbt->tx;
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assert(insert_at <= tx->num_inputs);
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wally_tx_add_input(tx, input);
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tmp_in = tx->inputs[tx->num_inputs - 1];
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MAKE_ROOM(tx->inputs, insert_at, tx->num_inputs);
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tx->inputs[insert_at] = tmp_in;
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if (psbt->inputs_allocation_len < tx->num_inputs) {
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struct wally_psbt_input *p = tal_arr(psbt, struct wally_psbt_input, tx->num_inputs);
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memcpy(p, psbt->inputs, sizeof(*psbt->inputs) * psbt->inputs_allocation_len);
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tal_free(psbt->inputs);
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psbt->inputs = p;
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psbt->inputs_allocation_len = tx->num_inputs;
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}
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psbt->num_inputs += 1;
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MAKE_ROOM(psbt->inputs, insert_at, psbt->num_inputs);
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memset(&psbt->inputs[insert_at], 0, sizeof(psbt->inputs[insert_at]));
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return &psbt->inputs[insert_at];
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}
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void psbt_rm_input(struct wally_psbt *psbt,
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size_t remove_at)
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{
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assert(remove_at < psbt->tx->num_inputs);
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wally_tx_remove_input(psbt->tx, remove_at);
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REMOVE_ELEM(psbt->inputs, remove_at, psbt->num_inputs);
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psbt->num_inputs -= 1;
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}
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struct wally_psbt_output *psbt_add_output(struct wally_psbt *psbt,
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struct wally_tx_output *output,
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size_t insert_at)
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{
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struct wally_tx *tx;
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struct wally_tx_output tmp_out;
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tx = psbt->tx;
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assert(insert_at <= tx->num_outputs);
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wally_tx_add_output(tx, output);
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tmp_out = tx->outputs[tx->num_outputs - 1];
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MAKE_ROOM(tx->outputs, insert_at, tx->num_outputs);
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tx->outputs[insert_at] = tmp_out;
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if (psbt->outputs_allocation_len < tx->num_outputs) {
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struct wally_psbt_output *p = tal_arr(psbt, struct wally_psbt_output, tx->num_outputs);
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memcpy(p, psbt->outputs, sizeof(*psbt->outputs) * psbt->outputs_allocation_len);
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tal_free(psbt->outputs);
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psbt->outputs = p;
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psbt->outputs_allocation_len = tx->num_outputs;
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}
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psbt->num_outputs += 1;
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MAKE_ROOM(psbt->outputs, insert_at, psbt->num_outputs);
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memset(&psbt->outputs[insert_at], 0, sizeof(psbt->outputs[insert_at]));
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return &psbt->outputs[insert_at];
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}
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void psbt_rm_output(struct wally_psbt *psbt,
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size_t remove_at)
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{
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assert(remove_at < psbt->tx->num_outputs);
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wally_tx_remove_output(psbt->tx, remove_at);
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REMOVE_ELEM(psbt->outputs, remove_at, psbt->num_outputs);
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psbt->num_outputs -= 1;
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}
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