71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/* Converted to C by Rusty Russell, based on bitcoin source: */
|
|
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2012 The Bitcoin Developers
|
|
// Distributed under the MIT/X11 software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
#include "config.h"
|
|
#include <bitcoin/address.h>
|
|
#include <bitcoin/base58.h>
|
|
#include <bitcoin/privkey.h>
|
|
#include <bitcoin/pubkey.h>
|
|
#include <bitcoin/shadouble.h>
|
|
#include <common/utils.h>
|
|
#include <wally_core.h>
|
|
|
|
static char *to_base58(const tal_t *ctx, u8 version,
|
|
const struct ripemd160 *rmd)
|
|
{
|
|
char *out;
|
|
size_t total_length = sizeof(*rmd) + 1;
|
|
u8 buf[total_length];
|
|
buf[0] = version;
|
|
memcpy(buf + 1, rmd, sizeof(*rmd));
|
|
|
|
tal_wally_start();
|
|
if (wally_base58_from_bytes((const unsigned char *) buf,
|
|
total_length, BASE58_FLAG_CHECKSUM, &out)
|
|
!= WALLY_OK)
|
|
out = NULL;
|
|
tal_wally_end_onto(ctx, out, char);
|
|
|
|
return out;
|
|
}
|
|
|
|
char *bitcoin_to_base58(const tal_t *ctx, const struct chainparams *chainparams,
|
|
const struct bitcoin_address *addr)
|
|
{
|
|
return to_base58(ctx, chainparams->p2pkh_version, &addr->addr);
|
|
}
|
|
|
|
char *p2sh_to_base58(const tal_t *ctx, const struct chainparams *chainparams,
|
|
const struct ripemd160 *p2sh)
|
|
{
|
|
return to_base58(ctx, chainparams->p2sh_version, p2sh);
|
|
}
|
|
|
|
static bool from_base58(u8 *version,
|
|
struct ripemd160 *rmd,
|
|
const char *base58, size_t base58_len)
|
|
{
|
|
/* Initialize to avoid memcheck complaining if decoding a short value */
|
|
u8 buf[1 + sizeof(*rmd) + 4] = { 0 };
|
|
const size_t buflen = sizeof(buf);
|
|
const uint32_t flags = BASE58_FLAG_CHECKSUM;
|
|
|
|
size_t written = 0;
|
|
int r = wally_base58_n_to_bytes(base58, base58_len, flags,
|
|
buf, buflen, &written);
|
|
if (r != WALLY_OK || written > buflen) {
|
|
return false;
|
|
}
|
|
*version = buf[0];
|
|
memcpy(rmd, buf + 1, sizeof(*rmd));
|
|
return true;
|
|
}
|
|
|
|
bool ripemd160_from_base58(u8 *version, struct ripemd160 *rmd,
|
|
const char *base58, size_t base58_len)
|
|
{
|
|
return from_base58(version, rmd, base58, base58_len);
|
|
}
|