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bitcoin/script: define standard scriptpubkey lengths.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2017-12-20 16:24:23 +10:30
committed by Christian Decker
parent 31153e9506
commit 070929f92e
2 changed files with 16 additions and 4 deletions
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8
bitcoin/script.c
View File

@@ -374,7 +374,7 @@ bool is_p2pkh(const u8 *script, struct bitcoin_address *addr)
{
size_t script_len = tal_len(script);
if (script_len != 25)
if (script_len != BITCOIN_SCRIPTPUBKEY_P2PKH_LEN)
return false;
if (script[0] != OP_DUP)
return false;
@@ -395,7 +395,7 @@ bool is_p2sh(const u8 *script, struct ripemd160 *addr)
{
size_t script_len = tal_len(script);
if (script_len != 23)
if (script_len != BITCOIN_SCRIPTPUBKEY_P2SH_LEN)
return false;
if (script[0] != OP_HASH160)
return false;
@@ -412,7 +412,7 @@ bool is_p2wsh(const u8 *script, struct sha256 *addr)
{
size_t script_len = tal_len(script);
if (script_len != 1 + 1 + sizeof(struct sha256))
if (script_len != BITCOIN_SCRIPTPUBKEY_P2WSH_LEN)
return false;
if (script[0] != OP_0)
return false;
@@ -427,7 +427,7 @@ bool is_p2wpkh(const u8 *script, struct bitcoin_address *addr)
{
size_t script_len = tal_len(script);
if (script_len != 1 + 1 + sizeof(struct ripemd160))
if (script_len != BITCOIN_SCRIPTPUBKEY_P2WPKH_LEN)
return false;
if (script[0] != OP_0)
return false;

12
bitcoin/script.h
View File

@@ -144,4 +144,16 @@ bool is_p2wpkh(const u8 *script, struct bitcoin_address *addr);
/* Are these two scripts equal? */
bool scripteq(const tal_t *s1, const tal_t *s2);
/* OP_DUP + OP_HASH160 + PUSH(20-byte-hash) + OP_EQUALVERIFY + OP_CHECKSIG */
#define BITCOIN_SCRIPTPUBKEY_P2PKH_LEN (1 + 1 + 1 + 20 + 1 + 1)
/* OP_HASH160 + PUSH(20-byte-hash) + OP_EQUAL */
#define BITCOIN_SCRIPTPUBKEY_P2SH_LEN (1 + 1 + 20 + 1)
/* OP_0 + PUSH(20-byte-hash) */
#define BITCOIN_SCRIPTPUBKEY_P2WPKH_LEN (1 + 1 + 20)
/* OP_0 + PUSH(32-byte-hash) */
#define BITCOIN_SCRIPTPUBKEY_P2WSH_LEN (1 + 1 + 32)
#endif /* LIGHTNING_BITCOIN_SCRIPT_H */