github.com/intfoundation/intchain@v0.0.0-20220727031208-4316ad31ca73/core/vm/runtime/fuzz.go (about) 1 // Copyright 2017 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 // +build gofuzz 18 19 package runtime 20 21 // Fuzz is the basic entry point for the go-fuzz tool 22 // 23 // This returns 1 for valid parsable/runable code, 0 24 // for invalid opcode. 25 func Fuzz(input []byte) int { 26 _, _, err := Execute(input, input, &Config{ 27 GasLimit: 3000000, 28 }) 29 30 // invalid opcode 31 if err != nil && len(err.Error()) > 6 && string(err.Error()[:7]) == "invalid" { 32 return 0 33 } 34 35 return 1 36 }