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common: Let Hex2Bytes and Hex2BytesFixed panic for invalid hex strings

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This commit is contained in:
Sebastian Stammler 2024-01-26 20:49:15 +01:00
parent bc0b87ca19
commit 91f01b0df7
1 changed files with 12 additions and 2 deletions
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14
common/bytes.go
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@ -76,14 +76,24 @@ func Bytes2Hex(d []byte) string {
} }
// Hex2Bytes returns the bytes represented by the hexadecimal string str. // Hex2Bytes returns the bytes represented by the hexadecimal string str.
// The string must not be prefixed with `0x`.
// It panics if str contains a non-hex char.
func Hex2Bytes(str string) []byte { func Hex2Bytes(str string) []byte {
h, _ := hex.DecodeString(str) h, err := hex.DecodeString(str)
if err != nil {
panic("error decoding string: " + err.Error())
}
return h return h
} }
// Hex2BytesFixed returns bytes of a specified fixed length flen. // Hex2BytesFixed returns bytes of a specified fixed length flen.
// The string must not be prefixed with `0x`.
// It panics if str contains a non-hex char.
func Hex2BytesFixed(str string, flen int) []byte { func Hex2BytesFixed(str string, flen int) []byte {
h, _ := hex.DecodeString(str) h, err := hex.DecodeString(str)
if err != nil {
panic("error decoding string: " + err.Error())
}
if len(h) == flen { if len(h) == flen {
return h return h
} }