GlcoinCore/elements
1
0
Fork 0
mirror of https://github.com/ElementsProject/elements.git synced 2026-08-14 12:43:40 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

BIP141: Witness program

Browse source
This commit is contained in:
Pieter Wuille 2015-11-08 01:16:45 +01:00
parent 7030d9eb47
commit 449f9b8deb
16 changed files with 201 additions and 37 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/script/script.cpp
View file

@ -210,6 +210,24 @@ bool CScript::IsPayToScriptHash() const
(*this)[22] == OP_EQUAL);
}
// A witness program is any valid CScript that consists of a 1-byte push opcode
// followed by a data push between 2 and 40 bytes.
bool CScript::IsWitnessProgram(int& version, std::vector<unsigned char>& program) const
{
if (this->size() < 4 || this->size() > 42) {
return false;
}
if ((*this)[0] != OP_0 && ((*this)[0] < OP_1 || (*this)[0] > OP_16)) {
return false;
}
if ((size_t)((*this)[1] + 2) == this->size()) {
version = DecodeOP_N((opcodetype)(*this)[0]);
program = std::vector<unsigned char>(this->begin() + 2, this->end());
return true;
}
return false;
}
bool CScript::IsPushOnly(const_iterator pc) const
{
while (pc < end())