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#ifndef LIGHTNING_BITCOIN_SHADOUBLE_H
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#define LIGHTNING_BITCOIN_SHADOUBLE_H
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#include "config.h"
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#include <ccan/crypto/sha256/sha256.h>
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#include <ccan/short_types/short_types.h>
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/* To explicitly distinguish between single sha and bitcoin's standard double */
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struct sha256_double {
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struct sha256 sha;
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};
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void sha256_double(struct sha256_double *shadouble, const void *p, size_t len);
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void sha256_double_done(struct sha256_ctx *sha256, struct sha256_double *res);
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/* marshal/unmarshal functions */
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void fromwire_sha256_double(const u8 **cursor, size_t *max,
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struct sha256_double *sha256d);
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void towire_sha256_double(u8 **pptr, const struct sha256_double *sha256d);
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#endif /* LIGHTNING_BITCOIN_SHADOUBLE_H */
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