Function push_fallback_addr

common/bolt11.c:1123–1129

BOLT #11: * * `f` (9): `data_length` variable, depending on version. Fallback * on-chain address: for Bitcoin, this starts with a 5-bit `version` * and contains a witness program or P2PKH or P2SH address. */

 * and contains a witness program or P2PKH or P2SH address.
 */
static void push_fallback_addr(u5 **data, u5 version, const void *addr, u16 addr_len)
{
	push_varlen_uint(data, bech32_charset_rev[(unsigned char)'f'], 5);
	push_varlen_uint(data, ((5 + addr_len * CHAR_BIT) + 4) / 5, 10);
	push_varlen_uint(data, version, 5);
	bech32_push_bits(data, addr, addr_len * CHAR_BIT);
}

static void encode_p(u5 **data, const struct sha256 *hash)
{