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Validating u256->usize conversion

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This commit is contained in:
Tomasz Drwięga 2016-08-08 10:26:28 +02:00
parent bdf6a5660e
commit 10b18db833
5 changed files with 9 additions and 12 deletions
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9
Cargo.lock generated
View File

@ -1549,16 +1549,13 @@ dependencies = [
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@ -1577,9 +1574,10 @@ dependencies = [
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@ -1683,6 +1681,5 @@ dependencies = [
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2
ethcore/src/evm/evm.rs
View File

@ -238,7 +238,7 @@ fn should_validate_u256_to_usize_conversion() {
let v = U256::from(::std::usize::MAX) + U256::from(1); let v = U256::from(::std::usize::MAX) + U256::from(1);
// when // when
let res = Gas::<usize>::from_u256(v); let res = usize::from_u256(v);
// then // then
assert!(res.is_err()); assert!(res.is_err());

2
ethcore/src/evm/interpreter/mod.rs
View File

@ -538,7 +538,7 @@ impl<Cost: CostType> Interpreter<Cost> {
if source_offset < source_size { if source_offset < source_size {
let output_begin = source_offset.low_u64() as usize; let output_begin = source_offset.low_u64() as usize;
self.mem.write_slice(dest_offset, &data[output_begin..output_end]); self.mem.write_slice(dest_offset, &source[output_begin..output_end]);
} }
} }

4
json/src/hash.rs
View File

@ -48,10 +48,10 @@ macro_rules! impl_hash {
0 => $inner::from(0), 0 => $inner::from(0),
2 if value == "0x" => $inner::from(0), 2 if value == "0x" => $inner::from(0),
_ if value.starts_with("0x") => try!($inner::from_str(&value[2..]).map_err(|_| { _ if value.starts_with("0x") => try!($inner::from_str(&value[2..]).map_err(|_| {
Error::custom(format!("Invalid hex value {}.", value).as_ref()) Error::custom(format!("Invalid hex value {}.", value).as_str())
})), })),
_ => try!($inner::from_str(value).map_err(|_| { _ => try!($inner::from_str(value).map_err(|_| {
Error::custom(format!("Invalid hex value {}.", value).as_ref()) Error::custom(format!("Invalid hex value {}.", value).as_str())
})) }))
}; };

4
json/src/uint.rs
View File

@ -70,10 +70,10 @@ impl Visitor for UintVisitor {
0 => U256::from(0), 0 => U256::from(0),
2 if value.starts_with("0x") => U256::from(0), 2 if value.starts_with("0x") => U256::from(0),
_ if value.starts_with("0x") => try!(U256::from_str(&value[2..]).map_err(|_| { _ if value.starts_with("0x") => try!(U256::from_str(&value[2..]).map_err(|_| {
Error::custom(format!("Invalid hex value {}.", value).as_ref()) Error::custom(format!("Invalid hex value {}.", value).as_str())
})), })),
_ => try!(U256::from_dec_str(value).map_err(|_| { _ => try!(U256::from_dec_str(value).map_err(|_| {
Error::custom(format!("Invalid decimal value {}.", value).as_ref()) Error::custom(format!("Invalid decimal value {}.", value).as_str())
})) }))
}; };