From d752ba86c1872f64a4641cf77008826d32bde65f Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 8 Oct 2014 16:29:45 -0700 Subject: Add SCRIPT_VERIFY_SIGPUSHONLY (BIP62 rule 2) --- src/script/script.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/script/script.cpp') diff --git a/src/script/script.cpp b/src/script/script.cpp index 3e19d0c2b..bbcfe9dfd 100644 --- a/src/script/script.cpp +++ b/src/script/script.cpp @@ -230,7 +230,7 @@ bool CScript::IsPushOnly() const return false; // Note that IsPushOnly() *does* consider OP_RESERVED to be a // push-type opcode, however execution of OP_RESERVED fails, so - // it's not relevant to P2SH as the scriptSig would fail prior to + // it's not relevant to P2SH/BIP62 as the scriptSig would fail prior to // the P2SH special validation code being executed. if (opcode > OP_16) return false; -- cgit v1.2.3 From 698c6abb25c1fbbc7fa4ba46b60e9f17d97332ef Mon Sep 17 00:00:00 2001 From: Pieter Wuille Date: Wed, 8 Oct 2014 18:48:59 -0700 Subject: Add SCRIPT_VERIFY_MINIMALDATA (BIP62 rules 3 and 4) Also use the new flag as a standard rule, and replace the IsCanonicalPush standardness check with it (as it is more complete). --- src/script/script.cpp | 29 +---------------------------- 1 file changed, 1 insertion(+), 28 deletions(-) (limited to 'src/script/script.cpp') diff --git a/src/script/script.cpp b/src/script/script.cpp index bbcfe9dfd..b879d72d6 100644 --- a/src/script/script.cpp +++ b/src/script/script.cpp @@ -12,7 +12,7 @@ namespace { inline std::string ValueString(const std::vector& vch) { if (vch.size() <= 4) - return strprintf("%d", CScriptNum(vch).getint()); + return strprintf("%d", CScriptNum(vch, false).getint()); else return HexStr(vch); } @@ -238,33 +238,6 @@ bool CScript::IsPushOnly() const return true; } -bool CScript::HasCanonicalPushes() const -{ - const_iterator pc = begin(); - while (pc < end()) - { - opcodetype opcode; - std::vector data; - if (!GetOp(pc, opcode, data)) - return false; - if (opcode > OP_16) - continue; - if (opcode < OP_PUSHDATA1 && opcode > OP_0 && (data.size() == 1 && data[0] <= 16)) - // Could have used an OP_n code, rather than a 1-byte push. - return false; - if (opcode == OP_PUSHDATA1 && data.size() < OP_PUSHDATA1) - // Could have used a normal n-byte push, rather than OP_PUSHDATA1. - return false; - if (opcode == OP_PUSHDATA2 && data.size() <= 0xFF) - // Could have used an OP_PUSHDATA1. - return false; - if (opcode == OP_PUSHDATA4 && data.size() <= 0xFFFF) - // Could have used an OP_PUSHDATA2. - return false; - } - return true; -} - std::string CScript::ToString() const { std::string str; -- cgit v1.2.3