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| author | Peter Todd <[email protected]> | 2014-10-13 10:18:05 -0400 |
|---|---|---|
| committer | Jorge Timón <[email protected]> | 2015-10-01 18:28:13 +0200 |
| commit | da894ab5da222ad317039eb008ec6443fb9113d9 (patch) | |
| tree | 391ecd1cf9ea432a1558ae2e70d9a1fbb91d5dd3 /src/test/transaction_tests.cpp | |
| parent | Add IsPushOnly(const_iterator pc) (diff) | |
| download | discoin-da894ab5da222ad317039eb008ec6443fb9113d9.tar.xz discoin-da894ab5da222ad317039eb008ec6443fb9113d9.zip | |
Accept any sequence of PUSHDATAs in OP_RETURN outputs
Previously only one PUSHDATA was allowed, needlessly limiting
applications such as matching OP_RETURN contents with bloom filters that
operate on a per-PUSHDATA level. Now any combination that passes
IsPushOnly() is allowed, so long as the total size of the scriptPubKey
is less than 42 bytes. (unchanged modulo non-minimal PUSHDATA encodings)
Also, this fixes the odd bug where previously the PUSHDATA could be
replaced by any single opcode, even sigops consuming opcodes such as
CHECKMULTISIG. (20 sigops!)
Diffstat (limited to 'src/test/transaction_tests.cpp')
| -rw-r--r-- | src/test/transaction_tests.cpp | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp index beec39667..9847f6512 100644 --- a/src/test/transaction_tests.cpp +++ b/src/test/transaction_tests.cpp @@ -351,12 +351,29 @@ BOOST_AUTO_TEST_CASE(test_IsStandard) t.vout[0].scriptPubKey = CScript() << OP_1; BOOST_CHECK(!IsStandardTx(t, reason)); - // 80-byte TX_NULL_DATA (standard) + // MAX_OP_RETURN_RELAY-byte TX_NULL_DATA (standard) t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3804678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38"); + BOOST_CHECK_EQUAL(MAX_OP_RETURN_RELAY, t.vout[0].scriptPubKey.size()); BOOST_CHECK(IsStandardTx(t, reason)); - // 81-byte TX_NULL_DATA (non-standard) + // MAX_OP_RETURN_RELAY+1-byte TX_NULL_DATA (non-standard) t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3804678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3800"); + BOOST_CHECK_EQUAL(MAX_OP_RETURN_RELAY + 1, t.vout[0].scriptPubKey.size()); + BOOST_CHECK(!IsStandardTx(t, reason)); + + // Data payload can be encoded in any way... + t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex(""); + BOOST_CHECK(IsStandardTx(t, reason)); + t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("00") << ParseHex("01"); + BOOST_CHECK(IsStandardTx(t, reason)); + // OP_RESERVED *is* considered to be a PUSHDATA type opcode by IsPushOnly()! + t.vout[0].scriptPubKey = CScript() << OP_RETURN << OP_RESERVED << -1 << 0 << ParseHex("01") << 2 << 3 << 4 << 5 << 6 << 7 << 8 << 9 << 10 << 11 << 12 << 13 << 14 << 15 << 16; + BOOST_CHECK(IsStandardTx(t, reason)); + t.vout[0].scriptPubKey = CScript() << OP_RETURN << 0 << ParseHex("01") << 2 << ParseHex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); + BOOST_CHECK(IsStandardTx(t, reason)); + + // ...so long as it only contains PUSHDATA's + t.vout[0].scriptPubKey = CScript() << OP_RETURN << OP_RETURN; BOOST_CHECK(!IsStandardTx(t, reason)); // TX_NULL_DATA w/o PUSHDATA |