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How to use saveRepro method of main Package

Best Syzkaller code snippet using main.saveRepro

manager.go

Source:manager.go

...379				Logf(0, "repro failed: %v", res.err)380			}381			delete(reproducing, res.crash.desc)382			instances = append(instances, res.instances...)383			mgr.saveRepro(res.crash, res.res)384		case <-shutdown:385			Logf(1, "loop: shutting down...")386			shutdown = nil387		}388	}389}390func (mgr *Manager) runInstance(vmCfg *vm.Config, first bool) (*Crash, error) {391	inst, err := vm.Create(mgr.cfg.Type, vmCfg)392	if err != nil {393		return nil, fmt.Errorf("failed to create instance: %v", err)394	}395	defer inst.Close()396	fwdAddr, err := inst.Forward(mgr.port)397	if err != nil {398		return nil, fmt.Errorf("failed to setup port forwarding: %v", err)399	}400	fuzzerBin, err := inst.Copy(filepath.Join(mgr.cfg.Syzkaller, "bin", "syz-fuzzer"))401	if err != nil {402		return nil, fmt.Errorf("failed to copy binary: %v", err)403	}404	executorBin, err := inst.Copy(filepath.Join(mgr.cfg.Syzkaller, "bin", "syz-executor"))405	if err != nil {406		return nil, fmt.Errorf("failed to copy binary: %v", err)407	}408	// Leak detection significantly slows down fuzzing, so detect leaks only on the first instance.409	leak := first && mgr.cfg.Leak410	fuzzerV := 0411	procs := mgr.cfg.Procs412	if *flagDebug {413		fuzzerV = 100414		procs = 1415	}416	// Run the fuzzer binary.417	start := time.Now()418	atomic.AddUint32(&mgr.numFuzzing, 1)419	defer atomic.AddUint32(&mgr.numFuzzing, ^uint32(0))420	cmd := fmt.Sprintf("%v -executor=%v -name=%v -manager=%v -output=%v -procs=%v -leak=%v -cover=%v -sandbox=%v -debug=%v -v=%d",421		fuzzerBin, executorBin, vmCfg.Name, fwdAddr, mgr.cfg.Output, procs, leak, mgr.cfg.Cover, mgr.cfg.Sandbox, *flagDebug, fuzzerV)422	outc, errc, err := inst.Run(time.Hour, mgr.vmStop, cmd)423	if err != nil {424		return nil, fmt.Errorf("failed to run fuzzer: %v", err)425	}426	desc, text, output, crashed, timedout := vm.MonitorExecution(outc, errc, mgr.cfg.Type == "local", true, mgr.cfg.ParsedIgnores)427	if timedout {428		// This is the only "OK" outcome.429		Logf(0, "%v: running for %v, restarting (%v)", vmCfg.Name, time.Since(start), desc)430		return nil, nil431	}432	if !crashed {433		// syz-fuzzer exited, but it should not.434		desc = "lost connection to test machine"435	}436	return &Crash{vmCfg.Name, desc, text, output}, nil437}438func (mgr *Manager) isSuppressed(crash *Crash) bool {439	for _, re := range mgr.cfg.ParsedSuppressions {440		if !re.Match(crash.output) {441			continue442		}443		Logf(1, "%v: suppressing '%v' with '%v'", crash.vmName, crash.desc, re.String())444		mgr.mu.Lock()445		mgr.stats["suppressed"]++446		mgr.mu.Unlock()447		return true448	}449	return false450}451func (mgr *Manager) saveCrash(crash *Crash) {452	Logf(0, "%v: crash: %v", crash.vmName, crash.desc)453	mgr.mu.Lock()454	mgr.stats["crashes"]++455	if !mgr.crashTypes[crash.desc] {456		mgr.crashTypes[crash.desc] = true457		mgr.stats["crash types"]++458	}459	mgr.mu.Unlock()460	sig := hash.Hash([]byte(crash.desc))461	id := sig.String()462	dir := filepath.Join(mgr.crashdir, id)463	os.MkdirAll(dir, 0700)464	if err := ioutil.WriteFile(filepath.Join(dir, "description"), []byte(crash.desc+"\n"), 0660); err != nil {465		Logf(0, "failed to write crash: %v", err)466	}467	// Save up to 100 reports. If we already have 100, overwrite the oldest one.468	// Newer reports are generally more useful. Overwriting is also needed469	// to be able to understand if a particular bug still happens or already fixed.470	oldestI := 0471	var oldestTime time.Time472	for i := 0; i < 100; i++ {473		info, err := os.Stat(filepath.Join(dir, fmt.Sprintf("log%v", i)))474		if err != nil {475			oldestI = i476			break477		}478		if oldestTime.IsZero() || info.ModTime().Before(oldestTime) {479			oldestI = i480			oldestTime = info.ModTime()481		}482	}483	ioutil.WriteFile(filepath.Join(dir, fmt.Sprintf("log%v", oldestI)), crash.output, 0660)484	if len(mgr.cfg.Tag) > 0 {485		ioutil.WriteFile(filepath.Join(dir, fmt.Sprintf("tag%v", oldestI)), []byte(mgr.cfg.Tag), 0660)486	}487	if len(crash.text) > 0 {488		symbolized, err := report.Symbolize(mgr.cfg.Vmlinux, crash.text)489		if err != nil {490			Logf(0, "failed to symbolize crash: %v", err)491		} else {492			crash.text = symbolized493		}494		ioutil.WriteFile(filepath.Join(dir, fmt.Sprintf("report%v", oldestI)), crash.text, 0660)495	}496	if mgr.dash != nil {497		dc := &dashboard.Crash{498			Tag:    mgr.cfg.Tag,499			Desc:   crash.desc,500			Log:    crash.output,501			Report: crash.text,502		}503		if err := mgr.dash.ReportCrash(dc); err != nil {504			Logf(0, "failed to report crash to dashboard: %v", err)505		}506	}507}508const maxReproAttempts = 3509func (mgr *Manager) needRepro(desc string) bool {510	if !mgr.cfg.Reproduce {511		return false512	}513	sig := hash.Hash([]byte(desc))514	dir := filepath.Join(mgr.crashdir, sig.String())515	if _, err := os.Stat(filepath.Join(dir, "repro.prog")); err == nil {516		return false517	}518	for i := 0; i < maxReproAttempts; i++ {519		if _, err := os.Stat(filepath.Join(dir, fmt.Sprintf("repro%v", i))); err != nil {520			return true521		}522	}523	return false524}525func (mgr *Manager) saveRepro(crash *Crash, res *repro.Result) {526	sig := hash.Hash([]byte(crash.desc))527	dir := filepath.Join(mgr.crashdir, sig.String())528	if res == nil {529		if mgr.dash != nil {530			dr := &dashboard.Repro{531				Crash: dashboard.Crash{532					Tag:  mgr.cfg.Tag,533					Desc: crash.desc,534				},535				Reproduced: false,536			}537			if err := mgr.dash.ReportRepro(dr); err != nil {538				Logf(0, "failed to report repro to dashboard: %v", err)539			}...

saveRepro

Using AI Code Generation

1import (2func main() {3	reader := bufio.NewReader(os.Stdin)4	fmt.Print("Enter text: ")5	text, _ := reader.ReadString('6	fmt.Println(text)7	main.saveRepro(text)8}9import (10func main() {11	reader := bufio.NewReader(os.Stdin)12	fmt.Print("Enter text: ")13	text, _ := reader.ReadString('14	fmt.Println(text)15	main.saveRepro(text)16}17import (18func main() {19	reader := bufio.NewReader(os.Stdin)20	fmt.Print("Enter text: ")21	text, _ := reader.ReadString('22	fmt.Println(text)23	main.saveRepro(text)24}25import (26func main() {27	reader := bufio.NewReader(os.Stdin)28	fmt.Print("Enter text: ")29	text, _ := reader.ReadString('30	fmt.Println(text)31	main.saveRepro(text)32}33import (34func main() {35	reader := bufio.NewReader(os.Stdin)36	fmt.Print("Enter text: ")37	text, _ := reader.ReadString('38	fmt.Println(text)39	main.saveRepro(text)40}41import (42func main() {43	reader := bufio.NewReader(os.Stdin)44	fmt.Print("Enter text: ")45	text, _ := reader.ReadString('46	fmt.Println(text)47	main.saveRepro(text)48}

saveRepro

Using AI Code Generation

1import "fmt"2func main() {3   fmt.Println("Hello, World!")4}5import "fmt"6func main() {7   fmt.Println("Hello, World!")8}9import "fmt"10func main() {11   fmt.Println("Hello, World!")12}13import "fmt"14func main() {15   fmt.Println("Hello, World!")16}17import "fmt"18func main() {19   fmt.Println("Hello, World!")20}21import "fmt"22func main() {23   fmt.Println("Hello, World!")24}25import "fmt"26func main() {27   fmt.Println("Hello, World!")28}29import "fmt"30func main() {31   fmt.Println("Hello, World!")32}33import "fmt"34func main() {35   fmt.Println("Hello, World!")36}37import "fmt"38func main() {39   fmt.Println("Hello, World!")40}41import "fmt"42func main() {43   fmt.Println("Hello, World!")44}45import "fmt"46func main() {47   fmt.Println("Hello, World!")48}49import "fmt"50func main() {51   fmt.Println("Hello, World!")52}

saveRepro

Using AI Code Generation

1import (2func main() {3	fmt.Println("Enter the name of the file you want to read from: ")4	fmt.Scanln(&input)5	fmt.Println("Enter the name of the file you want to write to: ")6	fmt.Scanln(&input2)7	fmt.Println("Enter the name of the file you want to read from: ")8	fmt.Scanln(&input3)9	fmt.Println("Enter the name of the file you want to write to: ")10	fmt.Scanln(&input4)11	fmt.Println("Enter the name of the file you want to read from: ")12	fmt.Scanln(&input)13	fmt.Println("Enter the name of the file you want to write to: ")14	fmt.Scanln(&input2)15	fmt.Println("Enter the name of the file you want to read from: ")16	fmt.Scanln(&input3)17	fmt.Println("Enter the name of the file you want to write to: ")18	fmt.Scanln(&input4)19	fmt.Println("Enter the name of the file you want to read from: ")20	fmt.Scanln(&input)21	fmt.Println("Enter the name of the file you want to write to: ")22	fmt.Scanln(&input2)23	fmt.Println("Enter the name of the file you want to read from: ")24	fmt.Scanln(&input3)25	fmt.Println("Enter the name of the file you want to write to: ")26	fmt.Scanln(&input4)27	fmt.Println("Enter the name of the file you want to read from: ")28	fmt.Scanln(&input)29	fmt.Println("Enter the name of the file you want to write to: ")30	fmt.Scanln(&input2)31	fmt.Println("Enter the name of the file you want to read from: ")32	fmt.Scanln(&input3)33	fmt.Println("Enter the name of the file you want to write to: ")34	fmt.Scanln(&input4)35	fmt.Println("Enter the name of the file you want to read from: ")36	fmt.Scanln(&input)37	fmt.Println("Enter the name of the file you want to write to: ")38	fmt.Scanln(&input2)39	fmt.Println("Enter the name of the file you want to read from: ")40	fmt.Scanln(&input3)41	fmt.Println("Enter the name of the file you want to write to: ")

saveRepro

Using AI Code Generation

1import (2func main() {3	go func() {4		cmd := exec.Command("ls", "-l")5		err := cmd.Run()6		if err != nil {7			log.Fatal(err)8		}9	}()10	ch := make(chan os.Signal, 1)11	signal.Notify(ch, os.Interrupt)12	err := saveRepro()13	if err != nil {14		log.Fatal(err)15	}16	fmt.Println("Saved reproduction")17}18func saveRepro() error {19	cmd := exec.Command("go", "run", "2.go")20	return cmd.Run()21}

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