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24 lines
614 B
24 lines
614 B
#include <ccan/err/err.h>
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#include <ccan/tal/tal.h>
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#include <string.h>
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#include "bitcoin/script.h"
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#include "bitcoin/tx.h"
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#include "find_p2sh_out.h"
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u32 find_p2sh_out(const struct bitcoin_tx *tx, u8 *redeemscript)
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{
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/* This is the scriptPubKey commit tx will have */
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u8 *p2sh = scriptpubkey_p2sh(NULL, redeemscript);
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u32 i;
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for (i = 0; i < tx->output_count; i++) {
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if (tx->output[i].script_length != tal_count(p2sh))
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continue;
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if (memcmp(tx->output[i].script, p2sh, tal_count(p2sh)) == 0)
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break;
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}
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if (i == tx->output_count)
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errx(1, "No matching output in tx");
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tal_free(p2sh);
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return i;
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}
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