u8 *scriptsig_pay_to_pubkeyhash(const tal_t *ctx,
const struct pubkey *key,
const struct bitcoin_signature *sig)
{
u8 *script = tal_arr(ctx, u8, 0);
add_push_sig(&script, sig);
add_push_key(&script, key);
return script;
}
/* Assumes redeemscript contains CHECKSIG, not CHECKMULTISIG */
u8 *scriptsig_p2sh_single_sig(const tal_t *ctx,
const u8 *redeem_script,
size_t redeem_len,
const struct bitcoin_signature *sig)
{
u8 *script = tal_arr(ctx, u8, 0);
add_push_sig(&script, sig);
add_push_bytes(&script, redeem_script, redeem_len);
return script;
}
u8 *scriptsig_p2sh_secret(const tal_t *ctx,
const void *secret, size_t secret_len,
const struct bitcoin_signature *sig,
const u8 *redeemscript,
size_t redeem_len)
{
u8 *script = tal_arr(ctx, u8, 0);
add_push_sig(&script, sig);
add_push_bytes(&script, secret, secret_len);
add_push_bytes(&script, redeemscript, redeem_len);
return script;
}
u8 *scriptsig_p2sh_2of2(const tal_t *ctx,
const struct bitcoin_signature *sig1,
const struct bitcoin_signature *sig2,
const struct pubkey *key1,
const struct pubkey *key2)
{
u8 *script = tal_arr(ctx, u8, 0);
u8 *redeemscript;
/* OP_CHECKMULTISIG has an out-by-one bug, which MBZ */
add_number(&script, 0);
/* sig order should match key order. */
if (key_less(key1, key2)) {
add_push_sig(&script, sig1);
add_push_sig(&script, sig2);
} else {
add_push_sig(&script, sig2);
add_push_sig(&script, sig1);
}
redeemscript = bitcoin_redeem_2of2(script, key1, key2);
add_push_bytes(&script, redeemscript, tal_count(redeemscript));
return script;
}
u8 *scriptsig_p2sh_revoke(const tal_t *ctx,
const struct sha256 *preimage,
const struct bitcoin_signature *sig,
const u8 *revocable_redeem,
size_t redeem_len)
{
u8 *script = tal_arr(ctx, u8, 0);
add_push_sig(&script, sig);
add_push_bytes(&script, preimage, sizeof(*preimage));
add_push_bytes(&script, revocable_redeem, redeem_len);
return script;
}
