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Added Left and Right padding utility functions

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This commit is contained in:
obscuren 2014-07-01 20:08:48 +02:00
parent 6151ae7db5
commit 28ef7d228c
1 changed files with 24 additions and 1 deletions
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25
ethutil/bytes.go
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@ -118,7 +118,8 @@ func FormatData(data string) []byte {
// Simple stupid
d := new(big.Int)
if data[0:1] == "\"" && data[len(data)-1:] == "\"" {
d.SetBytes([]byte(data[1 : len(data)-1]))
return RightPadBytes([]byte(data), 32)
//d.SetBytes([]byte(data[1 : len(data)-1]))
} else if len(data) > 1 && data[:2] == "0x" {
d.SetBytes(Hex2Bytes(data[2:]))
} else {
@ -127,3 +128,25 @@ func FormatData(data string) []byte {
return BigToBytes(d, 256)
}
func LeftPadBytes(slice []byte, l int) []byte {
if l <= len(slice) {
return slice
}
padded := make([]byte, l)
copy(padded[0:len(slice)], slice)
return padded
}
func RightPadBytes(slice []byte, l int) []byte {
if l <= len(slice) {
return slice
}
padded := make([]byte, l)
copy(padded[l-len(slice):], slice)
return padded
}