core-lightning/bitcoin/shadouble.h
Rusty Russell d8c06dccac global: expose all fmt_X functions for direct use, make uniform.
We have various functions to convert to a string, rename them all so we can
count on fmt_X being the formatter for struct X, and make them all return
`char *`.

Sometimes they existed but were private, sometimes they had a
different name.  Most take a pointer, but simple types pass by copy:
short_channel_id, amount_msat and amount_sat.

The following public functions changed:
1. psbt_to_b64 -> fmt_wally_psbt.
2. pubkey_to_hexstr -> fmt_pubkey.
3. short_channel_id_to_str -> fmt_short_channel_id (scid by copy now!)
4. fmt_signature -> fmt_secp256k1_ecdsa_signature
5. fmt_amount_sat/fmt_amount_msat pass copy not pointer, return non-const char *.
6. node_id_to_hexstr -> fmt_node_id

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2024-03-20 13:51:48 +10:30

24 lines
822 B
C

#ifndef LIGHTNING_BITCOIN_SHADOUBLE_H
#define LIGHTNING_BITCOIN_SHADOUBLE_H
#include "config.h"
#include <ccan/crypto/sha256/sha256.h>
#include <ccan/short_types/short_types.h>
#include <ccan/tal/tal.h>
/* To explicitly distinguish between single sha and bitcoin's standard double */
struct sha256_double {
struct sha256 sha;
};
void sha256_double(struct sha256_double *shadouble, const void *p, size_t len);
void sha256_double_done(struct sha256_ctx *sha256, struct sha256_double *res);
/* marshal/unmarshal functions */
void fromwire_sha256_double(const u8 **cursor, size_t *max,
struct sha256_double *sha256d);
void towire_sha256_double(u8 **pptr, const struct sha256_double *sha256d);
char *fmt_sha256_double(const tal_t *ctx, const struct sha256_double *shad);
#endif /* LIGHTNING_BITCOIN_SHADOUBLE_H */