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This commit is contained in:
chriseth
2017-01-24 23:37:48 +01:00
parent 605455f96b
commit 3949624a61
4 changed files with 49 additions and 23 deletions
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libsolidity/ast/AST.cpp
+1 -21
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@@ -539,25 +539,5 @@ bool Literal::passesAddressChecksum() const
{
string lit = value();
solAssert(lit.substr(0, 2) == "0x", "Expected hex prefix");
lit = lit.substr(2);
if (lit.length() != 40)
return false;
h256 hash = keccak256(boost::algorithm::to_lower_copy(lit, std::locale::classic()));
for (size_t i = 0; i < 40; ++i)
{
char addressCharacter = lit[i];
bool lowerCase;
if ('a' <= addressCharacter && addressCharacter <= 'f')
lowerCase = true;
else if ('A' <= addressCharacter && addressCharacter <= 'F')
lowerCase = false;
else
continue;
unsigned nibble = (unsigned(hash[i / 2]) >> (4 * (1 - (i % 2)))) & 0xf;
if ((nibble >= 8) == lowerCase)
return false;
}
return true;
return dev::passesAddressChecksum(lit, true);
}