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//go:build gofuzz
// +build gofuzz
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package fuzz
import (
"context"
"fmt"
"strconv"
"github.com/apache/thrift/lib/go/test/fuzz/gen-go/shared"
"github.com/apache/thrift/lib/go/test/fuzz/gen-go/tutorial"
"github.com/apache/thrift/lib/go/thrift"
)
const nbFuzzedProtocols = 2
func fuzzChooseProtocol(d byte, t thrift.TTransport) thrift.TProtocol {
switch d % nbFuzzedProtocols {
default:
fallthrough
case 0:
return thrift.NewTBinaryProtocolFactoryConf(nil).GetProtocol(t)
case 1:
return thrift.NewTCompactProtocolFactoryConf(nil).GetProtocol(t)
}
}
func Fuzz(data []byte) int {
if len(data) < 2 {
return 0
}
inputTransport := thrift.NewTMemoryBuffer()
inputTransport.Buffer.Write(data[2:])
outputTransport := thrift.NewTMemoryBuffer()
outputProtocol := fuzzChooseProtocol(data[0], outputTransport)
inputProtocol := fuzzChooseProtocol(data[1], inputTransport)
ctx := thrift.SetResponseHelper(
context.Background(),
thrift.TResponseHelper{
THeaderResponseHelper: thrift.NewTHeaderResponseHelper(outputProtocol),
},
)
handler := NewCalculatorHandler()
processor := tutorial.NewCalculatorProcessor(handler)
ok := true
var err error
for ok {
ok, err = processor.Process(ctx, inputProtocol, outputProtocol)
if err != nil {
// Handle parse error
return 0
}
res := make([]byte, 1024)
n, err := outputTransport.Buffer.Read(res)
fmt.Printf("lol %d %s %v\n", n, err, res)
}
return 1
}
type CalculatorHandler struct {
log map[int]*shared.SharedStruct
}
func NewCalculatorHandler() *CalculatorHandler {
return &CalculatorHandler{log: make(map[int]*shared.SharedStruct)}
}
func (p *CalculatorHandler) Ping(ctx context.Context) (err error) {
fmt.Print("ping()\n")
return nil
}
func (p *CalculatorHandler) Add(ctx context.Context, num1 int32, num2 int32) (retval17 int32, err error) {
fmt.Print("add(", num1, ",", num2, ")\n")
return num1 + num2, nil
}
func (p *CalculatorHandler) Calculate(ctx context.Context, logid int32, w *tutorial.Work) (val int32, err error) {
fmt.Print("calculate(", logid, ", {", w.Op, ",", w.Num1, ",", w.Num2, "})\n")
switch w.Op {
case tutorial.Operation_ADD:
val = w.Num1 + w.Num2
break
case tutorial.Operation_SUBTRACT:
val = w.Num1 - w.Num2
break
case tutorial.Operation_MULTIPLY:
val = w.Num1 * w.Num2
break
case tutorial.Operation_DIVIDE:
if w.Num2 == 0 {
ouch := tutorial.NewInvalidOperation()
ouch.WhatOp = int32(w.Op)
ouch.Why = "Cannot divide by 0"
err = ouch
return
}
val = w.Num1 / w.Num2
break
default:
ouch := tutorial.NewInvalidOperation()
ouch.WhatOp = int32(w.Op)
ouch.Why = "Unknown operation"
err = ouch
return
}
entry := shared.NewSharedStruct()
entry.Key = logid
entry.Value = strconv.Itoa(int(val))
k := int(logid)
p.log[k] = entry
return val, err
}
func (p *CalculatorHandler) GetStruct(ctx context.Context, key int32) (*shared.SharedStruct, error) {
fmt.Print("getStruct(", key, ")\n")
v, _ := p.log[int(key)]
return v, nil
}
func (p *CalculatorHandler) Zip(ctx context.Context) (err error) {
fmt.Print("zip()\n")
return nil
}
|
