syzkaller/hash/hash.go
Dmitry Vyukov cd74cc9cf4 syz-hub: add program
syz-hub is used to exchange programs between syz-managers.
2016-11-17 18:38:10 +01:00

36 lines
733 B
Go

// Copyright 2016 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package hash
import (
"crypto/sha1"
"encoding/hex"
"fmt"
)
type Sig [sha1.Size]byte
func Hash(data []byte) Sig {
return Sig(sha1.Sum(data))
}
func (sig *Sig) String() string {
return hex.EncodeToString((*sig)[:])
}
func FromString(str string) (Sig, error) {
bin, err := hex.DecodeString(str)
if err != nil {
return Sig{}, fmt.Errorf("failed to decode sig '%v': %v", str, err)
}
if len(bin) != len(Sig{}) {
return Sig{}, fmt.Errorf("failed to decode sig '%v': bad len", str)
}
var sig Sig
for i, v := range bin {
sig[i] = v
}
return sig, err
}