How to use OldFuzzerCmd method of instance Package

Best Syzkaller code snippet using instance.OldFuzzerCmd

instance.go

Source:instance.go

...295		if err != nil {296			return &TestError{Title: fmt.Sprintf("failed to copy test binary to VM: %v", err)}297		}298	}299	cmd := OldFuzzerCmd(fuzzerBin, executorCmd, "test", inst.cfg.TargetOS, inst.cfg.TargetArch, fwdAddr,300		inst.cfg.Sandbox, 0, inst.cfg.Cover, true)301	outc, errc, err := inst.vm.Run(10*time.Minute, nil, cmd)302	if err != nil {303		return fmt.Errorf("failed to run binary in VM: %v", err)304	}305	rep := inst.vm.MonitorExecution(outc, errc, inst.reporter, vm.ExitNormal)306	if rep != nil {307		if err := inst.reporter.Symbolize(rep); err != nil {308			// TODO(dvyukov): send such errors to dashboard.309			log.Logf(0, "failed to symbolize report: %v", err)310		}311		return &TestError{312			Title:  rep.Title,313			Report: rep,314		}315	}316	select {317	case err := <-acceptErr:318		return err319	case <-time.After(10 * time.Second):320		return fmt.Errorf("test machine failed to connect to host")321	}322}323func (inst *inst) testRepro() error {324	cfg := inst.cfg325	if len(inst.reproSyz) > 0 {326		execprogBin, err := inst.vm.Copy(cfg.SyzExecprogBin)327		if err != nil {328			return &TestError{Title: fmt.Sprintf("failed to copy test binary to VM: %v", err)}329		}330		// If SyzExecutorCmd is provided, it means that syz-executor is already in331		// the image, so no need to copy it.332		executorCmd := targets.Get(cfg.TargetOS, cfg.TargetArch).SyzExecutorCmd333		if executorCmd == "" {334			executorCmd, err = inst.vm.Copy(inst.cfg.SyzExecutorBin)335			if err != nil {336				return &TestError{Title: fmt.Sprintf("failed to copy test binary to VM: %v", err)}337			}338		}339		progFile := filepath.Join(cfg.Workdir, "repro.prog")340		if err := osutil.WriteFile(progFile, inst.reproSyz); err != nil {341			return fmt.Errorf("failed to write temp file: %v", err)342		}343		vmProgFile, err := inst.vm.Copy(progFile)344		if err != nil {345			return &TestError{Title: fmt.Sprintf("failed to copy test binary to VM: %v", err)}346		}347		opts, err := csource.DeserializeOptions(inst.reproOpts)348		if err != nil {349			return err350		}351		// Combine repro options and default options in a way that increases chances to reproduce the crash.352		// First, we always enable threaded/collide as it should be [almost] strictly better.353		// Executor does not support empty sandbox, so we use none instead.354		// Finally, always use repeat and multiple procs.355		if opts.Sandbox == "" {356			opts.Sandbox = "none"357		}358		if !opts.Fault {359			opts.FaultCall = -1360		}361		cmdSyz := ExecprogCmd(execprogBin, executorCmd, cfg.TargetOS, cfg.TargetArch, opts.Sandbox,362			true, true, true, cfg.Procs, opts.FaultCall, opts.FaultNth, vmProgFile)363		if err := inst.testProgram(cmdSyz, 7*time.Minute); err != nil {364			return err365		}366	}367	if len(inst.reproC) == 0 {368		return nil369	}370	target, err := prog.GetTarget(cfg.TargetOS, cfg.TargetArch)371	if err != nil {372		return err373	}374	bin, err := csource.BuildNoWarn(target, inst.reproC)375	if err != nil {376		return err377	}378	defer os.Remove(bin)379	vmBin, err := inst.vm.Copy(bin)380	if err != nil {381		return &TestError{Title: fmt.Sprintf("failed to copy test binary to VM: %v", err)}382	}383	// We should test for longer (e.g. 5 mins), but the problem is that384	// reproducer does not print anything, so after 3 mins we detect "no output".385	return inst.testProgram(vmBin, time.Minute)386}387func (inst *inst) testProgram(command string, testTime time.Duration) error {388	outc, errc, err := inst.vm.Run(testTime, nil, command)389	if err != nil {390		return fmt.Errorf("failed to run binary in VM: %v", err)391	}392	rep := inst.vm.MonitorExecution(outc, errc, inst.reporter,393		vm.ExitTimeout|vm.ExitNormal|vm.ExitError)394	if rep == nil {395		return nil396	}397	if err := inst.reporter.Symbolize(rep); err != nil {398		log.Logf(0, "failed to symbolize report: %v", err)399	}400	return &CrashError{Report: rep}401}402func FuzzerCmd(fuzzer, executor, name, OS, arch, fwdAddr, sandbox string, procs, verbosity int,403	cover, debug, test, runtest bool) string {404	osArg := ""405	if targets.Get(OS, arch).HostFuzzer {406		// Only these OSes need the flag, because the rest assume host OS.407		// But speciying OS for all OSes breaks patch testing on syzbot408		// because old execprog does not have os flag.409		osArg = " -os=" + OS410	}411	runtestArg := ""412	if runtest {413		runtestArg = " -runtest"414	}415	verbosityArg := ""416	if verbosity != 0 {417		verbosityArg = fmt.Sprintf(" -vv=%v", verbosity)418	}419	return fmt.Sprintf("%v -executor=%v -name=%v -arch=%v%v -manager=%v -sandbox=%v"+420		" -procs=%v -cover=%v -debug=%v -test=%v%v%v",421		fuzzer, executor, name, arch, osArg, fwdAddr, sandbox,422		procs, cover, debug, test, runtestArg, verbosityArg)423}424func OldFuzzerCmd(fuzzer, executor, name, OS, arch, fwdAddr, sandbox string, procs int, cover, test bool) string {425	return FuzzerCmd(fuzzer, executor, name, OS, arch, fwdAddr, sandbox, procs, 0, cover, false, test, false)426}427func ExecprogCmd(execprog, executor, OS, arch, sandbox string, repeat, threaded, collide bool,428	procs, faultCall, faultNth int, progFile string) string {429	repeatCount := 1430	if repeat {431		repeatCount = 0432	}433	osArg := ""434	if targets.Get(OS, arch).HostFuzzer {435		osArg = " -os=" + OS436	}437	return fmt.Sprintf("%v -executor=%v -arch=%v%v -sandbox=%v"+438		" -procs=%v -repeat=%v -threaded=%v -collide=%v -cover=0"+...

instance_test.go

Source:instance_test.go

...25	flagSignal := flags.Bool("cover", false, "collect feedback signals (coverage)")26	flagSandbox := flags.String("sandbox", "none", "sandbox for fuzzing (none/setuid/namespace)")27	flagDebug := flags.Bool("debug", false, "debug output from executor")28	flagV := flags.Int("v", 0, "verbosity")29	cmdLine := OldFuzzerCmd(os.Args[0], "/myexecutor", "myname", "linux", "386", "localhost:1234",30		"namespace", 3, true, true)31	args := strings.Split(cmdLine, " ")[1:]32	if err := flags.Parse(args); err != nil {33		t.Fatal(err)34	}35	if *flagName != "myname" {36		t.Errorf("bad name: %q, want: %q", *flagName, "myname")37	}38	if *flagArch != "386" {39		t.Errorf("bad arch: %q, want: %q", *flagArch, "386")40	}41	if *flagManager != "localhost:1234" {42		t.Errorf("bad manager: %q, want: %q", *flagManager, "localhost:1234")43	}...

OldFuzzerCmd

Using AI Code Generation

1f := NewFuzzer()2f.OldFuzzerCmd()3f := NewFuzzer()4f.NewFuzzerCmd()5f := NewFuzzer()6f.OldFuzzerCmd()7f := NewFuzzer()8f.NewFuzzerCmd()9f := NewFuzzer()10f.OldFuzzerCmd()11f := NewFuzzer()12f.NewFuzzerCmd()13f := NewFuzzer()14f.OldFuzzerCmd()15f := NewFuzzer()16f.NewFuzzerCmd()17f := NewFuzzer()18f.OldFuzzerCmd()19f := NewFuzzer()20f.NewFuzzerCmd()21f := NewFuzzer()22f.OldFuzzerCmd()23f := NewFuzzer()24f.NewFuzzerCmd()25f := NewFuzzer()26f.OldFuzzerCmd()27f := NewFuzzer()28f.NewFuzzerCmd()29f := NewFuzzer()30f.OldFuzzerCmd()31f := NewFuzzer()

OldFuzzerCmd

Using AI Code Generation

1import (2func main() {3	fuzzer.OldFuzzerCmd()4	fmt.Println("This is the main method")5}6import (7func main() {8	fuzzer.NewFuzzerCmd()9	fmt.Println("This is the main method")10}11import (12func main() {13	fuzzer.Fuzz()14	fmt.Println("This is the main method")15}16import (17func main() {18	fuzzer.FuzzBuild()19	fmt.Println("This is the main method")20}21import (22func main() {23	fuzzer.FuzzRun()24	fmt.Println("This is the main method")25}26import (27func main() {28	fuzzer.FuzzInit()29	fmt.Println("This is the main method")30}31import (32func main() {33	fuzzer.FuzzCover()34	fmt.Println("This is the main

OldFuzzerCmd

Using AI Code Generation

1import (2func main() {3  fmt.Println("Hello, playground")4  fuzzer := go_fuzz_dep.NewFuzzerCmd()5  fuzzer.OldFuzzerCmd()6}7import (8func main() {9  fmt.Println("Hello, playground")10  fuzzer := go_fuzz_dep.NewFuzzerCmd()11  fuzzer.OldFuzzerCmd()12}

OldFuzzerCmd

Using AI Code Generation

1import (2func main() {3 app := cli.NewApp()4 app.Compiled = time.Now()5 app.Authors = []cli.Author{6 {

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