forks/go-ethereum
1
0
Fork 1
mirror of https://github.com/ethereum/go-ethereum.git synced 2026-08-17 01:13:45 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

accounts/abi: count array fields after unpacking

Browse source 
In current codebase array fields are counted before unpacking output.
So, if we have array with 2 fields: toGoType function will try to unpack
values from 64 till 64 + 2*32 which is not correct in my opinion.

I shifted counting to be done after processing array,
so in case array is the first field,
and it has 2 elements: we will read it from 0 till 2*32.

Additionally array doesnt require length prefix, so field that follows array
should be read from 64 byte.
This is why i made additional substitution in this change.
This commit is contained in:
Dmitry Shulyak 2017-11-30 11:52:19 +02:00
parent a16d68e126
commit 7ed09ed0bc
1 changed files with 4 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
accounts/abi/event.go
View file

@ -71,14 +71,15 @@ func (e Event) tupleUnpack(v interface{}, output []byte) error {
if input.Indexed {
// can't read, continue
continue
} else if input.Type.T == ArrayTy {
// need to move this up because they read sequentially
j += input.Type.Size
}
marshalledValue, err := toGoType((i+j)*32, input.Type, output)
if err != nil {
return err
}
if input.Type.T == ArrayTy {
// need to move this up because they read sequentially
j += input.Type.Size - 1
}
reflectValue := reflect.ValueOf(marshalledValue)
switch value.Kind() {