How to use encodeEntries method of repro Package

Best Syzkaller code snippet using repro.encodeEntries

repro.go

Source:repro.go

...324		return nil, nil325	}326	// TODO: Minimize each program before concatenation.327	// TODO: Return multiple programs if concatenation fails.328	ctx.reproLog(3, "bisect: %d programs left: \n\n%s\n", len(entries), encodeEntries(entries))329	ctx.reproLog(3, "bisect: trying to concatenate")330	// Concatenate all programs into one.331	prog := &prog.Prog{332		Target: entries[0].P.Target,333	}334	for _, entry := range entries {335		prog.Calls = append(prog.Calls, entry.P.Calls...)336	}337	dur := duration(len(entries)) * 3 / 2338	// Execute the program without fault injection.339	crashed, err := ctx.testProg(prog, dur, opts)340	if err != nil {341		return nil, err342	}343	if crashed {344		res := &Result{345			Prog:     prog,346			Duration: dur,347			Opts:     opts,348		}349		ctx.reproLog(3, "bisect: concatenation succeeded")350		return res, nil351	}352	// Try with fault injection.353	calls := 0354	for _, entry := range entries {355		if entry.Fault {356			opts.FaultCall = calls + entry.FaultCall357			opts.FaultNth = entry.FaultNth358			if entry.FaultCall < 0 || entry.FaultCall >= len(entry.P.Calls) {359				opts.FaultCall = calls + len(entry.P.Calls) - 1360			}361			crashed, err := ctx.testProg(prog, dur, opts)362			if err != nil {363				return nil, err364			}365			if crashed {366				res := &Result{367					Prog:     prog,368					Duration: dur,369					Opts:     opts,370				}371				ctx.reproLog(3, "bisect: concatenation succeeded with fault injection")372				return res, nil373			}374		}375		calls += len(entry.P.Calls)376	}377	ctx.reproLog(3, "bisect: concatenation failed")378	return nil, nil379}380// Minimize calls and arguments.381func (ctx *context) minimizeProg(res *Result) (*Result, error) {382	ctx.reproLog(2, "minimizing guilty program")383	start := time.Now()384	defer func() {385		ctx.stats.MinimizeProgTime = time.Since(start)386	}()387	call := -1388	if res.Opts.Fault {389		call = res.Opts.FaultCall390	}391	res.Prog, res.Opts.FaultCall = prog.Minimize(res.Prog, call, true,392		func(p1 *prog.Prog, callIndex int) bool {393			crashed, err := ctx.testProg(p1, res.Duration, res.Opts)394			if err != nil {395				ctx.reproLog(0, "minimization failed with %v", err)396				return false397			}398			return crashed399		})400	return res, nil401}402// Simplify repro options (threaded, collide, sandbox, etc).403func (ctx *context) simplifyProg(res *Result) (*Result, error) {404	ctx.reproLog(2, "simplifying guilty program")405	start := time.Now()406	defer func() {407		ctx.stats.SimplifyProgTime = time.Since(start)408	}()409	for _, simplify := range progSimplifies {410		opts := res.Opts411		if simplify(&opts) {412			crashed, err := ctx.testProg(res.Prog, res.Duration, opts)413			if err != nil {414				return nil, err415			}416			if crashed {417				res.Opts = opts418				// Simplification successful, try extracting C repro.419				res, err := ctx.extractC(res)420				if err != nil {421					return nil, err422				}423				if res.CRepro {424					return res, nil425				}426			}427		}428	}429	return res, nil430}431// Try triggering crash with a C reproducer.432func (ctx *context) extractC(res *Result) (*Result, error) {433	ctx.reproLog(2, "extracting C reproducer")434	start := time.Now()435	defer func() {436		ctx.stats.ExtractCTime = time.Since(start)437	}()438	crashed, err := ctx.testCProg(res.Prog, res.Duration, res.Opts)439	if err != nil {440		return nil, err441	}442	res.CRepro = crashed443	return res, nil444}445// Try to simplify the C reproducer.446func (ctx *context) simplifyC(res *Result) (*Result, error) {447	ctx.reproLog(2, "simplifying C reproducer")448	start := time.Now()449	defer func() {450		ctx.stats.SimplifyCTime = time.Since(start)451	}()452	for _, simplify := range cSimplifies {453		opts := res.Opts454		if simplify(&opts) {455			crashed, err := ctx.testCProg(res.Prog, res.Duration, opts)456			if err != nil {457				return nil, err458			}459			if crashed {460				res.Opts = opts461			}462		}463	}464	return res, nil465}466func (ctx *context) testProg(p *prog.Prog, duration time.Duration, opts csource.Options) (crashed bool, err error) {467	entry := prog.LogEntry{P: p}468	if opts.Fault {469		entry.Fault = true470		entry.FaultCall = opts.FaultCall471		entry.FaultNth = opts.FaultNth472	}473	return ctx.testProgs([]*prog.LogEntry{&entry}, duration, opts)474}475func (ctx *context) testProgs(entries []*prog.LogEntry, duration time.Duration, opts csource.Options) (476	crashed bool, err error) {477	inst := <-ctx.instances478	if inst == nil {479		return false, fmt.Errorf("all VMs failed to boot")480	}481	defer ctx.returnInstance(inst)482	if len(entries) == 0 {483		return false, fmt.Errorf("no programs to execute")484	}485	pstr := encodeEntries(entries)486	progFile, err := osutil.WriteTempFile(pstr)487	if err != nil {488		return false, err489	}490	defer os.Remove(progFile)491	vmProgFile, err := inst.Copy(progFile)492	if err != nil {493		return false, fmt.Errorf("failed to copy to VM: %v", err)494	}495	repeat := 1496	if opts.Repeat {497		repeat = 0498	}499	if !opts.Fault {500		opts.FaultCall = -1501	}502	program := entries[0].P.String()503	if len(entries) > 1 {504		program = "["505		for i, entry := range entries {506			program += fmt.Sprintf("%v", len(entry.P.Calls))507			if i != len(entries)-1 {508				program += ", "509			}510		}511		program += "]"512	}513	command := fmt.Sprintf("%v -executor %v -arch=%v -cover=0 -procs=%v -repeat=%v"+514		" -sandbox %v -threaded=%v -collide=%v %v",515		inst.execprogBin, inst.executorBin, ctx.cfg.TargetArch, opts.Procs, repeat,516		opts.Sandbox, opts.Threaded, opts.Collide, vmProgFile)517	ctx.reproLog(2, "testing program (duration=%v, %+v): %s", duration, opts, program)518	return ctx.testImpl(inst.Instance, command, duration)519}520func (ctx *context) testCProg(p *prog.Prog, duration time.Duration, opts csource.Options) (crashed bool, err error) {521	src, err := csource.Write(p, opts)522	if err != nil {523		return false, err524	}525	srcf, err := osutil.WriteTempFile(src)526	if err != nil {527		return false, err528	}529	defer os.Remove(srcf)530	bin, err := csource.Build(p.Target, "c", srcf)531	if err != nil {532		return false, err533	}534	defer os.Remove(bin)535	ctx.reproLog(2, "testing compiled C program (duration=%v, %+v): %s", duration, opts, p)536	crashed, err = ctx.testBin(bin, duration)537	if err != nil {538		return false, err539	}540	return crashed, nil541}542func (ctx *context) testBin(bin string, duration time.Duration) (crashed bool, err error) {543	inst := <-ctx.instances544	if inst == nil {545		return false, fmt.Errorf("all VMs failed to boot")546	}547	defer ctx.returnInstance(inst)548	bin, err = inst.Copy(bin)549	if err != nil {550		return false, fmt.Errorf("failed to copy to VM: %v", err)551	}552	return ctx.testImpl(inst.Instance, bin, duration)553}554func (ctx *context) testImpl(inst *vm.Instance, command string, duration time.Duration) (crashed bool, err error) {555	outc, errc, err := inst.Run(duration, nil, command)556	if err != nil {557		return false, fmt.Errorf("failed to run command in VM: %v", err)558	}559	rep := vm.MonitorExecution(outc, errc, ctx.reporter, true)560	if rep == nil {561		ctx.reproLog(2, "program did not crash")562		return false, nil563	}564	ctx.report = rep565	ctx.reproLog(2, "program crashed: %v", rep.Title)566	return true, nil567}568func (ctx *context) returnInstance(inst *instance) {569	ctx.bootRequests <- inst.index570	inst.Close()571}572func (ctx *context) reproLog(level int, format string, args ...interface{}) {573	prefix := fmt.Sprintf("reproducing crash '%v': ", ctx.crashTitle)574	log.Logf(level, prefix+format, args...)575	ctx.stats.Log = append(ctx.stats.Log, []byte(fmt.Sprintf(format, args...)+"\n")...)576}577func (ctx *context) bisectProgs(progs []*prog.LogEntry, pred func([]*prog.LogEntry) (bool, error)) (578	[]*prog.LogEntry, error) {579	ctx.reproLog(3, "bisect: bisecting %d programs", len(progs))580	compose := func(guilty1, guilty2 [][]*prog.LogEntry, chunk []*prog.LogEntry) []*prog.LogEntry {581		progs := []*prog.LogEntry{}582		for _, c := range guilty1 {583			progs = append(progs, c...)584		}585		progs = append(progs, chunk...)586		for _, c := range guilty2 {587			progs = append(progs, c...)588		}589		return progs590	}591	logGuilty := func(guilty [][]*prog.LogEntry) string {592		log := "["593		for i, chunk := range guilty {594			log += fmt.Sprintf("<%d>", len(chunk))595			if i != len(guilty)-1 {596				log += ", "597			}598		}599		log += "]"600		return log601	}602	ctx.reproLog(3, "bisect: executing all %d programs", len(progs))603	crashed, err := pred(progs)604	if err != nil {605		return nil, err606	}607	if !crashed {608		ctx.reproLog(3, "bisect: didn't crash")609		return nil, nil610	}611	guilty := [][]*prog.LogEntry{progs}612again:613	ctx.reproLog(3, "bisect: guilty chunks: %v", logGuilty(guilty))614	for i, chunk := range guilty {615		if len(chunk) == 1 {616			continue617		}618		guilty1 := guilty[:i]619		guilty2 := guilty[i+1:]620		ctx.reproLog(3, "bisect: guilty chunks split: %v, <%v>, %v", logGuilty(guilty1), len(chunk), logGuilty(guilty2))621		chunk1 := chunk[0 : len(chunk)/2]622		chunk2 := chunk[len(chunk)/2:]623		ctx.reproLog(3, "bisect: chunk split: <%v> => <%v>, <%v>", len(chunk), len(chunk1), len(chunk2))624		ctx.reproLog(3, "bisect: triggering crash without chunk #1")625		progs := compose(guilty1, guilty2, chunk2)626		crashed, err := pred(progs)627		if err != nil {628			return nil, err629		}630		if crashed {631			guilty = nil632			guilty = append(guilty, guilty1...)633			guilty = append(guilty, chunk2)634			guilty = append(guilty, guilty2...)635			ctx.reproLog(3, "bisect: crashed, chunk #1 evicted")636			goto again637		}638		ctx.reproLog(3, "bisect: triggering crash without chunk #2")639		progs = compose(guilty1, guilty2, chunk1)640		crashed, err = pred(progs)641		if err != nil {642			return nil, err643		}644		if crashed {645			guilty = nil646			guilty = append(guilty, guilty1...)647			guilty = append(guilty, chunk1)648			guilty = append(guilty, guilty2...)649			ctx.reproLog(3, "bisect: crashed, chunk #2 evicted")650			goto again651		}652		guilty = nil653		guilty = append(guilty, guilty1...)654		guilty = append(guilty, chunk1)655		guilty = append(guilty, chunk2)656		guilty = append(guilty, guilty2...)657		ctx.reproLog(3, "bisect: not crashed, both chunks required")658		goto again659	}660	progs = nil661	for _, chunk := range guilty {662		if len(chunk) != 1 {663			return nil, fmt.Errorf("bad bisect result: %v", guilty)664		}665		progs = append(progs, chunk[0])666	}667	ctx.reproLog(3, "bisect: success, %d programs left", len(progs))668	return progs, nil669}670func reverseEntries(entries []*prog.LogEntry) []*prog.LogEntry {671	last := len(entries) - 1672	for i := 0; i < len(entries)/2; i++ {673		entries[i], entries[last-i] = entries[last-i], entries[i]674	}675	return entries676}677func encodeEntries(entries []*prog.LogEntry) []byte {678	buf := new(bytes.Buffer)679	for _, ent := range entries {680		opts := ""681		if ent.Fault {682			opts = fmt.Sprintf(" (fault-call:%v fault-nth:%v)", ent.FaultCall, ent.FaultNth)683		}684		fmt.Fprintf(buf, "executing program %v%v:\n%v", ent.Proc, opts, string(ent.P.Serialize()))685	}686	return buf.Bytes()687}688type Simplify func(opts *csource.Options) bool689var progSimplifies = []Simplify{690	func(opts *csource.Options) bool {691		if !opts.Fault {...

encodeEntries

Using AI Code Generation

1repro1 = new repro();2repro1.encodeEntries();3repro1 = new repro();4repro1.decodeEntries();5repro1 = new repro();6repro1.encodeEntries();7repro1 = new repro();8repro1.decodeEntries();9repro1 = new repro();10repro1.encodeEntries();11repro1 = new repro();12repro1.decodeEntries();13repro1 = new repro();14repro1.encodeEntries();15repro1 = new repro();16repro1.decodeEntries();17repro1 = new repro();18repro1.encodeEntries();19repro1 = new repro();20repro1.decodeEntries();21repro1 = new repro();22repro1.encodeEntries();23repro1 = new repro();24repro1.decodeEntries();25repro1 = new repro();26repro1.encodeEntries();27repro1 = new repro();28repro1.decodeEntries();29repro1 = new repro();30repro1.encodeEntries();31repro1 = new repro();32repro1.decodeEntries();

encodeEntries

Using AI Code Generation

1func main() {2    r.encodeEntries()3}4func main() {5    r.encodeEntries()6}7func main() {8    r.encodeEntries()9}10func main() {11    r.encodeEntries()12}13func main() {14    r.encodeEntries()15}16func main() {17    r.encodeEntries()18}19func main() {20    r.encodeEntries()21}22func main() {23    r.encodeEntries()24}25func main() {26    r.encodeEntries()27}28func main() {29    r.encodeEntries()30}31func main() {32    r.encodeEntries()33}34func main() {35    r.encodeEntries()36}37func main() {38    r.encodeEntries()39}40func main() {41    r.encodeEntries()42}43func main() {44    r.encodeEntries()45}46func main()

encodeEntries

Using AI Code Generation

1import (2func main() {3	r.encodeEntries()4}5import (6func main() {7	r.encodeEntries()8}9import (10func main() {11	r.encodeEntries()12}13import (14func main() {15	r.encodeEntries()16}17import (18func main() {19	r.encodeEntries()20}21import (22func main() {23	r.encodeEntries()24}25import (26func main() {27	r.encodeEntries()28}29import (30func main() {31	r.encodeEntries()32}33import (34func main() {35	r.encodeEntries()36}37import (38func main() {39	r.encodeEntries()40}41import (42func main() {43	r.encodeEntries()44}45import (46func main() {47	r.encodeEntries()48}49import (50func main() {51	r.encodeEntries()52}53import (54func main() {55	r.encodeEntries()56}57import (58func main() {59	r.encodeEntries()60}61import (62func main() {63	r.encodeEntries()64}65import (66func main() {67	r.encodeEntries()68}69import (

encodeEntries

Using AI Code Generation

1import (2func main() {3    var e = make([]entry, 1)4    e[0] = entry{[]byte("abc"), []byte("def")}5    fmt.Println(r.encodeEntries(e))6}7import (8func main() {9    fmt.Println(r.decodeEntry([]byte("abc=def")))10}11import (12func main() {13    fmt.Println(r.decodeEntry(r.encodeEntry(entry{[]byte("abc"), []byte("def")})))14}15import (16func main() {17    var e = make([]entry, 1)18    e[0] = entry{[]byte("abc"), []byte("def")}19    fmt.Println(r.decodeEntries(r.encodeEntries(e)))20}21import (22func main() {23    fmt.Println(r.decodeEntries(r.encodeEntry(entry{[]byte("abc"), []byte("def")})))24}25import (26func main() {27    var e = make([]entry, 1)28    e[0] = entry{[]byte("abc"), []byte("def")}29    fmt.Println(r.decodeEntry(r.encodeEntries(e)))30}31import (32func main() {33    var e = make([]entry, 1)34    e[0] = entry{[]byte("abc"), []byte("def")}35    fmt.Println(r.decodeEntries(r.encodeEntries(e)))36}

encodeEntries

Using AI Code Generation

1import (2func main() {3	r := repro{}4	err := r.encodeEntries(os.Stdout, "a", "b", "c")5	if err != nil {6		fmt.Println(err)7	}8}9import (10func main() {11	r := repro{}12	err := r.encodeEntries(os.Stdout, "a", "b", "c")13	if err != nil {14		fmt.Println(err)15	}16}17import (18func main() {19	r := repro{}20	err := r.encodeEntries(os.Stdout, "a", "b", "c")21	if err != nil {22		fmt.Println(err)23	}24}25import (26func main() {27	r := repro{}28	err := r.encodeEntries(os.Stdout, "a", "b", "c")29	if err != nil {30		fmt.Println(err)31	}32}33import (34func main() {35	r := repro{}36	err := r.encodeEntries(os.Stdout, "a", "b", "c")37	if err != nil {38		fmt.Println(err)39	}40}41import (42func main() {43	r := repro{}44	err := r.encodeEntries(os.Stdout, "a", "b", "c")45	if err != nil {46		fmt.Println(err)47	}48}

encodeEntries

Using AI Code Generation

1import (2func main() {3	repro := new(Repro)4	var entries = []string{"one", "two", "three", "four"}5	repro.encodeEntries(entries)6}7import (8type Repro struct {9}10func (repro Repro) encodeEntries(entries []string) {11	for i := 0; i < len(entries); i++ {12		fmt.Println(entries[i])13	}14}15defer function_name()16import (17func main() {18	defer fmt.Println("world")19	fmt.Println("hello")20}21import (22func main() {23	defer fmt.Println("world")24	fmt.Println("hello")25	defer fmt.Println("!")26}27import

encodeEntries

Using AI Code Generation

1import (2func main() {3	encoder := repro{}4	entries := []entry{5		{ID: 1, Name: "A"},6		{ID: 2, Name: "B"},7		{ID: 3, Name: "C"},8	}9	encoder.encodeEntries(&buffer, entries)10	err := ioutil.WriteFile("output.txt", buffer.Bytes(), 0644)11	if err != nil {12		panic(err)13	}14	fmt.Println("Encoded data written to output.txt")15}16import (17func main() {18	encoder := repro{}19	data, err := ioutil.ReadFile("output.txt")20	if err != nil {21		panic(err)22	}23	entries := encoder.decodeEntries(data)24	fmt.Println(entries)25}26import (27func main() {28	encoder := repro{}29	data, err := ioutil.ReadFile("output.txt")30	if err != nil {31		panic(err)32	}33	entries := encoder.decodeEntries(data)34	fmt.Println(entries)35}36import (37func main() {38	encoder := repro{}39	data, err := ioutil.ReadFile("output.txt")40	if err != nil {41		panic(err)42	}43	entries := encoder.decodeEntries(data)44	fmt.Println(entries)45}

encodeEntries

Using AI Code Generation

1import (2func main() {3repro := Repro{}4repro.encodeEntries()5}6I have tried to import the package using:7import (8I have also tried to import the package using:9import (10I have also tried to import the package using:11import (12I have also tried to import the package using:13import (14I have also tried to import the package using:15import (16I have also tried to import the package using:17import (18I have also tried to import the package using:19import (20I have also tried to import the package using:21import (22I have also tried to import the package using:23import (24I have also tried to import the package using:25import (26I have also tried to import the package using:27import (28I have also tried to import the package using:29import (30I have also tried to import the package using:31import (32I have also tried to import the package using:33import (34I have also tried to import the package using:35import (36I have also tried to import the package using:37import (38I have also tried to import the package using:39import (40I have also tried to import the package

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