How to use bin method of prog Package

Best Syzkaller code snippet using prog.bin

main.go

Source:main.go

...25	}26	for _, v := range prog {27		var a, b, i, j int28		switch {29		case bin(bin(bin(inp(&i), "+", num(&a)), "+", num(&b)), "force", inp(&j))(v):30			a += b31			if a < 0 {32				m[i] = '9'33				m[j] = byte(9 + a + '0')34			} else {35				m[j] = '9'36				m[i] = byte(9 - a + '0')37			}38		}39	}40	return string(m)41}42func minModel(prog []*val) string {43	m := make([]byte, 14)44	for i := range m {45		m[i] = '?'46	}47	for _, v := range prog {48		var a, b, i, j int49		switch {50		case bin(bin(bin(inp(&i), "+", num(&a)), "+", num(&b)), "force", inp(&j))(v):51			a += b52			if a < 0 {53				m[j] = '1'54				m[i] = byte(1 - a + '0')55			} else {56				m[i] = '1'57				m[j] = byte(1 + a + '0')58			}59		}60	}61	return string(m)62}63func force(prog []*val) {64	max := make(map[*val]int)65	max[prog[len(prog)-1]] = 066	updateMax := func(v *val, m int) {67		if old, ok := max[v]; ok && old < m {68			return69		}70		max[v] = m71	}72	for i := len(prog) - 1; i >= 0; i-- {73		v := prog[i]74		m, ok := max[v]75		if !ok {76			continue77		}78		if m > v.max {79			continue80		}81		var x, y *val82		var a int83		switch {84		default:85			// panic("force " + v.op)86		case num(&a)(v):87			if a > m {88				panic("force impossible")89			}90		case bin(any(&x), "+", any(&y))(v):91			updateMax(x, m-y.min)92			updateMax(y, m-x.min)93		case bin(any(&x), "*", any(&y))(v):94			if y.min > 0 {95				updateMax(x, m/y.min)96			}97			if x.min > 0 {98				updateMax(y, m/x.min)99			}100		case bin(any(&x), "%", any(&y))(v):101		case bin(any(&x), "/", num(&a))(v):102			updateMax(x, m*a+a-1)103		case bin(bin(any(&x), "==", any(&y)), "==", con(0))(v):104			v.op = "force"105			v.l = x106			v.r = y107			v.min = 0108			v.max = 0109			updateMax(x, y.max)110			updateMax(y, x.max)111		}112	}113	_ = max114}115func opt(prog []*val) {116	for _, v := range prog {117		var a, b int118		var x, y *val119		switch {120		case bin(num(&a), "+", num(&b))(v):121			setval(v, a+b)122		case bin(num(&a), "*", num(&b))(v):123			setval(v, a*b)124		case bin(num(&a), "/", num(&b))(v):125			setval(v, a/b)126		case bin(num(&a), "%", num(&b))(v):127			setval(v, a%b)128		case bin(con(0), "*", any(&x))(v),129			bin(any(&x), "*", con(0))(v):130			setval(v, 0)131		case bin(con(0), "+", any(&x))(v),132			bin(any(&x), "+", con(0))(v),133			bin(any(&x), "/", con(1))(v),134			bin(any(&x), "*", con(1))(v):135			*v = *x136		case bin(any(&x), "==", any(&y))(v) &&137			(x.min > y.max || y.min > x.max):138			setval(v, 0)139		case bin(num(&a), "==", num(&b))(v) && a == b:140			setval(v, 1)141		case bin(bin(bin(any(&y), "*", num(&b)), "+", any(&x)), "%", num(&a))(v) && a == b && x.max < a:142			*v = *x143		case bin(bin(bin(any(&y), "*", num(&b)), "+", any(&x)), "/", num(&a))(v) && a == b && x.max < a:144			*v = *y145		case bin(bin(any(&x), "+", any(&y)), "%", num(&a))(v) && x.max+y.max < a:146			*v = val{147				op: "+",148				l:  x,149				r:  y,150			}151		}152		switch v.op {153		default:154			panic("min/max " + v.op)155		case "force":156			v.min = 0157			v.max = 0158		case "num":159			v.min = v.n160			v.max = v.n161		case "inp":162			v.min = 1163			v.max = 9164		case "==":165			v.min = 0166			v.max = 1167		case "*":168			if v.l.min < 0 || v.r.min < 0 {169				panic("min/max neg *")170			}171			v.min = v.l.min * v.r.min172			v.max = v.l.max * v.r.max173		case "+":174			v.min = v.l.min + v.r.min175			v.max = v.l.max + v.r.max176		case "%":177			if v.r.op != "num" {178				panic("min/max % non-constant")179			}180			v.min = 0181			v.max = v.r.n - 1182		case "/":183			if v.r.op != "num" {184				panic("min/max / non-constant")185			}186			v.min = v.l.min / v.r.n187			v.max = v.l.max / v.r.n188		}189	}190}191func setval(v *val, n int) {192	*v = val{op: "num", n: n}193}194type matcher func(v *val) bool195func inp(n *int) matcher {196	return func(v *val) bool {197		if v.op == "inp" {198			*n = v.n199			return true200		}201		return false202	}203}204func any(p **val) matcher {205	return func(v *val) bool {206		*p = v207		return true208	}209}210func con(n int) matcher {211	return func(v *val) bool {212		return v.op == "num" && v.n == n || v.min == n && v.max == n213	}214}215func num(n *int) matcher {216	return func(v *val) bool {217		if v.op == "num" {218			*n = v.n219			return true220		}221		if v.min == v.max {222			*n = v.min223			return true224		}225		return false226	}227}228func bin(l matcher, op string, r matcher) matcher {229	return func(v *val) bool {230		return v.op == op && l(v.l) && r(v.r)231	}232}233func (v *val) Name() string {234	return fmt.Sprint("t", v.t)235}236func (v *val) Init() string {237	switch v.op {238	case "num":239		return fmt.Sprint(v.n)240	case "inp":241		return fmt.Sprint("m", v.n)242	default:243		return fmt.Sprintf("(%v %v %v)", v.l.Name(), v.op, v.r.Name())244	}245}246func (v *val) String() string {247	return fmt.Sprintf("%v = %v", v.Name(), v.Init())248}249func dump(prog []*val) {250	count := make(map[*val]int)251	for i := len(prog) - 1; i >= 0; i-- {252		v := prog[i]253		if count[v] == 0 && i != len(prog)-1 {254			continue255		}256		count[v.l]++257		count[v.r]++258	}259	str := make(map[*val]string)260	for _, v := range prog {261		var x string262		switch v.op {263		case "inp", "num":264			x = v.Init()265		default:266			x = fmt.Sprintf("(%v %v %v)", str[v.l], v.op, str[v.r])267			if count[v] > 1 || v.op == "force" {268				fmt.Printf("%v = %v // [%d,%d]\n", v.Name(), x, v.min, v.max)269				x = v.Name()270			}271		}272		str[v] = x273	}274	fmt.Println(str[prog[len(prog)-1]])275}276func compute() []*val {277	var prog []*val278	t := 0279	emit := func(v *val) *val {280		t++281		v.t = t282		prog = append(prog, v)283		return v284	}285	i := 0286	inp := func() *val {287		v := emit(&val{288			op: "inp",289			n:  i,290		})291		i++292		return v293	}294	bin := func(l *val, op string, r *val) *val {295		return emit(&val{296			op: op,297			l:  l,298			r:  r,299		})300	}301	add := func(a, b *val) *val { return bin(a, "+", b) }302	mul := func(a, b *val) *val { return bin(a, "*", b) }303	div := func(a, b *val) *val { return bin(a, "/", b) }304	mod := func(a, b *val) *val { return bin(a, "%", b) }305	eql := func(a, b *val) *val { return bin(a, "==", b) }306	num := func(n int) *val { return emit(&val{op: "num", n: n}) }307	w, x, y, z := num(0), num(0), num(0), num(0)308	w = inp()309	x = mul(x, num(0))310	x = add(x, z)311	x = mod(x, num(26))312	z = div(z, num(1))313	x = add(x, num(12))314	x = eql(x, w)315	x = eql(x, num(0))316	y = mul(y, num(0))317	y = add(y, num(25))318	y = mul(y, x)319	y = add(y, num(1))...

execprog.go

Source:execprog.go

...60			var err error61			ret.StraceBin, err = vmInst.Copy(ret.StraceBin)62			if err != nil {63				vmInst.Close()64				return nil, &TestError{Title: fmt.Sprintf("failed to copy strace bin: %v", err)}65			}66		}67	}68	if ret.Logf == nil {69		ret.Logf = func(int, string, ...interface{}) {}70	}71	if ret.ExitCondition == 0 {72		ret.ExitCondition = vm.ExitTimeout | vm.ExitNormal | vm.ExitError73	}74	return ret, nil75}76func CreateExecProgInstance(vmPool *vm.Pool, vmIndex int, mgrCfg *mgrconfig.Config,77	reporter *report.Reporter, opt *OptionalConfig) (*ExecProgInstance, error) {78	vmInst, err := vmPool.Create(vmIndex)79	if err != nil {80		return nil, fmt.Errorf("failed to create VM: %v", err)81	}82	ret, err := SetupExecProg(vmInst, mgrCfg, reporter, opt)83	if err != nil {84		vmInst.Close()85		return nil, err86	}87	return ret, nil88}89func (inst *ExecProgInstance) runCommand(command string, duration time.Duration) (*RunResult, error) {90	var prefixOutput []byte91	if inst.StraceBin != "" {92		filterCalls := ""93		switch inst.mgrCfg.SysTarget.OS {94		case targets.Linux:95			// wait4 and nanosleep generate a lot of noise, especially when running syz-executor.96			// We cut them on the VM side in order to decrease load on the network and to use97			// the limited buffer size wisely.98			filterCalls = ` -e \!wait4,clock_nanosleep,nanosleep`99		}100		command = inst.StraceBin + filterCalls + ` -s 100 -x -f ` + command101		prefixOutput = []byte(fmt.Sprintf("%s\n\n<...>\n", command))102	}103	outc, errc, err := inst.VMInstance.Run(duration, nil, command)104	if err != nil {105		return nil, fmt.Errorf("failed to run command in VM: %v", err)106	}107	result := &RunResult{108		ExecutionResult: *inst.VMInstance.MonitorExecutionRaw(outc, errc,109			inst.reporter, inst.ExitCondition, inst.BeforeContextLen),110	}111	if len(prefixOutput) > 0 {112		result.RawOutput = append(prefixOutput, result.RawOutput...)113	}114	if result.Report == nil {115		inst.Logf(2, "program did not crash")116	} else {117		if err := inst.reporter.Symbolize(result.Report); err != nil {118			return nil, fmt.Errorf("failed to symbolize report: %v", err)119		}120		inst.Logf(2, "program crashed: %v", result.Report.Title)121	}122	return result, nil123}124func (inst *ExecProgInstance) runBinary(bin string, duration time.Duration) (*RunResult, error) {125	bin, err := inst.VMInstance.Copy(bin)126	if err != nil {127		return nil, &TestError{Title: fmt.Sprintf("failed to copy binary to VM: %v", err)}128	}129	return inst.runCommand(bin, duration)130}131func (inst *ExecProgInstance) RunCProg(p *prog.Prog, duration time.Duration,132	opts csource.Options) (*RunResult, error) {133	src, err := csource.Write(p, opts)134	if err != nil {135		return nil, err136	}137	inst.Logf(2, "testing compiled C program (duration=%v, %+v): %s", duration, opts, p)138	return inst.RunCProgRaw(src, p.Target, duration)139}140func (inst *ExecProgInstance) RunCProgRaw(src []byte, target *prog.Target,141	duration time.Duration) (*RunResult, error) {142	bin, err := csource.BuildNoWarn(target, src)143	if err != nil {144		return nil, err145	}146	defer os.Remove(bin)147	return inst.runBinary(bin, duration)148}149func (inst *ExecProgInstance) RunSyzProgFile(progFile string, duration time.Duration,150	opts csource.Options) (*RunResult, error) {151	vmProgFile, err := inst.VMInstance.Copy(progFile)152	if err != nil {153		return nil, &TestError{Title: fmt.Sprintf("failed to copy prog to VM: %v", err)}154	}155	target := inst.mgrCfg.SysTarget156	faultCall := -1157	if opts.Fault {158		faultCall = opts.FaultCall159	}160	command := ExecprogCmd(inst.execprogBin, inst.executorBin, target.OS, target.Arch, opts.Sandbox,161		opts.Repeat, opts.Threaded, opts.Collide, opts.Procs, faultCall, opts.FaultNth,...

bin

Using AI Code Generation

1import (2func main() {3	fmt.Println("hello world")4}5import (6func main() {7	fmt.Println("hello world")8}9import (10func main() {11	fmt.Println("hello world")12}13import (14func main() {15	fmt.Println("hello world")16}17import (18func main() {19	fmt.Println("hello world")20}21import (22func main() {23	fmt.Println("hello world")24}25import (26func main() {27	fmt.Println("hello world")28}29import (30func main()

bin

Using AI Code Generation

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

bin

Using AI Code Generation

1import (2func main() {3    fmt.Print("Enter a: ")4    fmt.Scan(&a)5    fmt.Print("Enter b: ")6    fmt.Scan(&b)7    fmt.Print("Enter c: ")8    fmt.Scan(&c)9    if d < 0 {10        fmt.Println("No real roots")11    } else {12        x1 := (-b + math.Sqrt(d)) / (2 * a)13        x2 := (-b - math.Sqrt(d)) / (2 * a)14        fmt.Println("x1 = ", x1)15        fmt.Println("x2 = ", x2)16    }17}18import (19func main() {20    fmt.Print("Enter a: ")21    fmt.Scan(&a)22    fmt.Print("Enter b: ")23    fmt.Scan(&b)24    fmt.Print("Enter c: ")25    fmt.Scan(&c)26    if d < 0 {27        fmt.Println("No real roots")28    } else if d == 0 {29        x := -b / (2 * a)30        fmt.Println("x = ", x)31    } else {32        x1 := (-b + math.Sqrt(d)) / (2 * a)33        x2 := (-b - math.Sqrt(d)) / (2 * a)34        fmt.Println("x1 = ", x1)35        fmt.Println("x2 = ", x2)36    }37}38import (39func main() {40    fmt.Print("Enter a: ")41    fmt.Scan(&a

bin

Using AI Code Generation

1import (2func main() {3    fmt.Println("Calling bin method")4    prog.Bin()5}6import (7func Bin() {8    fmt.Println("Calling Bin method")9}10import (11func main() {12    fmt.Println("Calling bin method")13    prog.Bin()14}15import (16func Bin() {17    fmt.Println("Calling Bin method")18}

bin

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World!")4	x.Bin()5}6import "fmt"7type Prog struct {8}9func (p Prog) Bin() {10	fmt.Println("Prog.Bin")11}12import "testing"13func TestBin(t *testing.T) {14	x.Bin()15}16TEXT ·Bin(SB), $0-017    MOVQ    (AX), AX18type Prog struct {19}20func (p Prog) Bin()21TEXT ·Bin(SB), $0-022    MOVQ    (AX), AX23import "fmt"24type Prog struct {25}26func (p Prog) Bin() {27	fmt.Println("Prog.Bin")28}29import "testing"30func TestBin(t *testing.T) {31	x.Bin()32}33TEXT ·Bin(SB), $0-034    MOVQ    (AX), AX35type Prog struct {36}37func (p Prog) Bin()38TEXT ·Bin(SB), $0-039    MOVQ    (AX), AX40import "fmt"41type Prog struct {42}43func (p Prog) Bin() {44	fmt.Println("Prog.Bin")45}46import "testing"47func TestBin(t *testing.T) {48	x.Bin()49}50TEXT ·Bin(SB), $0-051    MOVQ    (AX), AX52type Prog struct {53}54func (p Prog) Bin()55TEXT ·Bin(S

bin

Using AI Code Generation

1import (2func main() {3	fmt.Print("Enter a number: ")4	fmt.Scan(&num)5	fmt.Println("Binary representation of", num, "is", prog.Bin(num))6}7func Bin(num int) string {8	if num == 0 {9	}10	for num > 0 {11		bin = string((num%2)+48) + bin12	}13}14func Bin(num int) string {15	if num == 0 {16	}17	for num > 0 {18		bin = string((num%2)+48) + bin19	}20}21func Bin(num int) string {22	if num == 0 {23	}24	for num > 0 {25		bin = string((num%2)+48) + bin26	}27}28func Bin(num int) string {29	if num == 0 {30	}31	for num > 0 {32		bin = string((num%2)+48) + bin33	}34}35func Bin(num int) string {36	if num == 0 {37	}38	for num > 0 {39		bin = string((num%2)+48) + bin40	}41}42func Bin(num int) string {43	if num == 0 {44	}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.