github.com/haliliceylan/bsc@v1.1.10-0.20220501224556-eb78d644ebcb/tests/fuzzers/runtime/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  package runtime
    18  
    19  import (
    20  	"github.com/ethereum/go-ethereum/core/vm/runtime"
    21  )
    22  
    23  // Fuzz is the basic entry point for the go-fuzz tool
    24  //
    25  // This returns 1 for valid parsable/runable code, 0
    26  // for invalid opcode.
    27  func Fuzz(input []byte) int {
    28  	_, _, err := runtime.Execute(input, input, &runtime.Config{
    29  		GasLimit: 12000000,
    30  	})
    31  	// invalid opcode
    32  	if err != nil && len(err.Error()) > 6 && err.Error()[:7] == "invalid" {
    33  		return 0
    34  	}
    35  	return 1
    36  }