Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use MakeReturnArg method of prog Package

Best Syzkaller code snippet using prog.MakeReturnArg

vmaCallHandlers.go

Source:vmaCallHandlers.go

...32}33func parseMmap(mmap *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {34	call := &prog.Call{35		Meta: mmap,36		Ret:  prog.MakeReturnArg(mmap.Ret),37	}38	ctx.CurrentSyzCall = call39	length := (parseLength(syscall.Args[1], ctx)/ctx.Target.PageSize + 1) * ctx.Target.PageSize //RoundUp PageSize40	log.Logf(3, "mmap call: %#v requires %d memory", syscall, length)41	addrArg, start := parseAddr(length, mmap.Args[0], syscall.Args[0], ctx)42	lengthArg := prog.MakeConstArg(mmap.Args[1], length)43	protArg := parseFlags(mmap.Args[2], syscall.Args[2], ctx, false)44	flagArg := parseFlags(mmap.Args[3], syscall.Args[3], ctx, true)45	fdArg := parseFd(mmap.Args[4], syscall.Args[4], ctx)46	call.Args = []prog.Arg{47		addrArg,48		lengthArg,49		protArg,50		flagArg,51		fdArg,52		prog.MakeConstArg(mmap.Args[5], 0),53	}54	//All mmaps have fixed mappings in syzkaller55	ctx.Tracker.createMapping(call, len(ctx.Prog.Calls), call.Args[0], start, start+length)56	return call57}58func parseMremap(mremap *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {59	call := &prog.Call{60		Meta: mremap,61		Ret:  prog.MakeReturnArg(mremap.Ret),62	}63	ctx.CurrentSyzCall = call64	oldAddrArg, start := parseAddr(ctx.Target.PageSize, mremap.Args[0], syscall.Args[0], ctx)65	oldSz := parseLength(syscall.Args[1], ctx)66	newSz := parseLength(syscall.Args[2], ctx)67	oldSzArg := prog.MakeConstArg(mremap.Args[1], oldSz)68	newSzArg := prog.MakeConstArg(mremap.Args[2], newSz)69	flagArg := parseFlags(mremap.Args[3], syscall.Args[3], ctx, true)70	var destAddrArg prog.Arg71	var destAddr uint6472	if len(syscall.Args) > 4 {73		destAddrArg, destAddr = parseAddr(ctx.Target.PageSize, mremap.Args[4], syscall.Args[4], ctx)74	} else {75		straceAddrArg := parser.NewIntsType([]int64{syscall.Ret})76		destAddrArg, destAddr = parseAddr(ctx.Target.PageSize, mremap.Args[4], straceAddrArg, ctx)77	}78	addDependency(start, oldSz, oldAddrArg, ctx)79	call.Args = []prog.Arg{80		oldAddrArg,81		oldSzArg,82		newSzArg,83		flagArg,84		destAddrArg,85	}86	//All mmaps have fixed mappings in syzkaller87	ctx.Tracker.createMapping(call, len(ctx.Prog.Calls), call.Args[4], destAddr, destAddr+newSz)88	return call89}90func parseMsync(msync *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {91	var length uint6492	call := &prog.Call{93		Meta: msync,94		Ret:  prog.MakeReturnArg(msync.Ret),95	}96	ctx.CurrentSyzCall = call97	addrArg, address := parseAddr(ctx.Target.PageSize, msync.Args[0], syscall.Args[0], ctx)98	length = parseLength(syscall.Args[1], ctx)99	lengthArg := prog.MakeConstArg(msync.Args[1], length)100	protArg := parseFlags(msync.Args[2], syscall.Args[2], ctx, false)101	addDependency(address, length, addrArg, ctx)102	call.Args = []prog.Arg{103		addrArg,104		lengthArg,105		protArg,106	}107	return call108}109func parseMprotect(mprotect *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {110	call := &prog.Call{111		Meta: mprotect,112		Ret:  prog.MakeReturnArg(mprotect.Ret),113	}114	ctx.CurrentSyzCall = call115	addrArg, address := parseAddr(ctx.Target.PageSize, mprotect.Args[0], syscall.Args[0], ctx)116	length := parseLength(syscall.Args[1], ctx)117	lengthArg := prog.MakeConstArg(mprotect.Args[1], length)118	protArg := parseFlags(mprotect.Args[2], syscall.Args[2], ctx, false)119	addDependency(address, length, addrArg, ctx)120	call.Args = []prog.Arg{121		addrArg,122		lengthArg,123		protArg,124	}125	return call126}127func parseMunmap(munmap *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {128	call := &prog.Call{129		Meta: munmap,130		Ret:  prog.MakeReturnArg(munmap.Ret),131	}132	ctx.CurrentSyzCall = call133	addrArg, address := parseAddr(ctx.Target.PageSize, munmap.Args[0], syscall.Args[0], ctx)134	length := parseLength(syscall.Args[1], ctx)135	lengthArg := prog.MakeConstArg(munmap.Args[1], length)136	addDependency(address, length, addrArg, ctx)137	call.Args = []prog.Arg{138		addrArg,139		lengthArg,140	}141	return call142}143func parseMadvise(madvise *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {144	call := &prog.Call{145		Meta: madvise,146		Ret:  prog.MakeReturnArg(madvise.Ret),147	}148	ctx.CurrentSyzCall = call149	addrArg, address := parseAddr(ctx.Target.PageSize, madvise.Args[0], syscall.Args[0], ctx)150	length := parseLength(syscall.Args[1], ctx)151	lengthArg := prog.MakeConstArg(madvise.Args[1], length)152	var adviceArg prog.Arg153	switch a := syscall.Args[2].(type) {154	case parser.Expression:155		adviceArg = prog.MakeConstArg(madvise.Args[2], a.Eval(ctx.Target))156	default:157		log.Fatalf("Madvise advice arg is not expression")158	}159	addDependency(address, length, addrArg, ctx)160	call.Args = []prog.Arg{161		addrArg,162		lengthArg,163		adviceArg,164	}165	return call166}167func parseMlock(mlock *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {168	call := &prog.Call{169		Meta: mlock,170		Ret:  prog.MakeReturnArg(mlock.Ret),171	}172	ctx.CurrentSyzCall = call173	addrArg, address := parseAddr(ctx.Target.PageSize, mlock.Args[0], syscall.Args[0], ctx)174	length := parseLength(syscall.Args[1], ctx)175	flagArg := prog.MakeConstArg(mlock.Args[1], length)176	addDependency(address, length, addrArg, ctx)177	call.Args = []prog.Arg{178		addrArg,179		flagArg,180	}181	return call182}183func parseMunlock(munlock *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {184	call := &prog.Call{185		Meta: munlock,186		Ret:  prog.MakeReturnArg(munlock.Ret),187	}188	ctx.CurrentSyzCall = call189	addrArg, address := parseAddr(ctx.Target.PageSize, munlock.Args[0], syscall.Args[0], ctx)190	length := parseLength(syscall.Args[1], ctx)191	flagArg := prog.MakeConstArg(munlock.Args[1], length)192	addDependency(address, length, addrArg, ctx)193	call.Args = []prog.Arg{194		addrArg,195		flagArg,196	}197	return call198}199func parseShmat(shmat *prog.Syscall, syscall *parser.Syscall, ctx *Context) *prog.Call {200	/*201	* Shmat will create a shared memory map which we should track.202	* If the second argument is NULL then shmat will create the memory map and203	* store it at that address if successful.204	 */205	shmid := uint64(0)206	var fd prog.Arg207	call := &prog.Call{208		Meta: shmat,209		Ret:  prog.MakeReturnArg(shmat.Ret),210	}211	ctx.CurrentSyzCall = call212	if arg := ctx.ReturnCache.get(shmat.Args[0], syscall.Args[0]); arg != nil {213		switch a := arg.Type().(type) {214		case *prog.ResourceType:215			fd = prog.MakeResultArg(shmat.Args[0], arg.(*prog.ResultArg), a.Default())216		default:217			log.Fatalf("Expected first argument of Shmat to be resource type. Got: %s", a.Name())218		}219	} else {220		switch a := syscall.Args[0].(type) {221		case parser.Expression:222			shmid = a.Eval(ctx.Target)223		default:224			shmid = 0225		}226		fd = prog.MakeResultArg(shmat.Args[0], nil, shmid)227	}228	addrArg, address := parseAddr(ctx.Target.PageSize, shmat.Args[1], syscall.Args[1], ctx)229	flags := parseFlags(shmat.Args[2], syscall.Args[2], ctx, false)230	call.Args = []prog.Arg{231		fd,232		addrArg,233		flags,234	}235	//Cache the mapped address since it is a resource type as well236	call.Ret = prog.MakeReturnArg(shmat.Ret)237	straceRet := parser.NewIntsType([]int64{syscall.Ret})238	ctx.ReturnCache.cache(call.Ret.Type(), straceRet, call.Ret)239	length := uint64(4096)240	if req := ctx.Tracker.findShmRequest(shmid); req != nil {241		length = req.getSize()242	}243	ctx.Tracker.createMapping(call, len(ctx.Prog.Calls), call.Args[1], address, address+length)244	return call245}246func parseAddr(length uint64, syzType prog.Type, traceType parser.IrType, ctx *Context) (prog.Arg, uint64) {247	defAddrStart := (ctx.Target.NumPages - 2) * ctx.Target.PageSize248	switch a := traceType.(type) {249	case *parser.PointerType:250		var addrStart uint64...

common.go

Source:common.go

...34		args = append(args, prog.MakeConstArg(meta.Args[i].Type, prog.DirIn, 0))35		return &prog.Call{36			Meta: meta,37			Args: args,38			Ret:  prog.MakeReturnArg(meta.Ret),39		}40	}41	return func() []*prog.Call {42		if contain {43			return []*prog.Call{44				makeMmap(^target.PageSize+1, target.PageSize, 0),45				makeMmap(0, size, protRW),46				makeMmap(size, target.PageSize, 0),47			}48		}49		return []*prog.Call{makeMmap(0, size, protRW)}50	}51}52func MakeSyzMmap(target *prog.Target) func() []*prog.Call {53	meta := target.SyscallMap["syz_mmap"]54	size := target.NumPages * target.PageSize55	return func() []*prog.Call {56		return []*prog.Call{57			{58				Meta: meta,59				Args: []prog.Arg{60					prog.MakeVmaPointerArg(meta.Args[0].Type, prog.DirIn, 0, size),61					prog.MakeConstArg(meta.Args[1].Type, prog.DirIn, size),62				},63				Ret: prog.MakeReturnArg(meta.Ret),64			},65		}66	}67}68type UnixNeutralizer struct {69	MAP_FIXED uint6470	S_IFREG   uint6471	S_IFCHR   uint6472	S_IFBLK   uint6473	S_IFIFO   uint6474	S_IFSOCK  uint6475}76func MakeUnixNeutralizer(target *prog.Target) *UnixNeutralizer {77	return &UnixNeutralizer{...

MakeReturnArg

Using AI Code Generation

1import (2func main() {3	fmt.Println(prog.MakeReturnArg())4}5func MakeReturnArg() string {6}7Now, if you want to import prog package from 2.go file, you need to import it using relative path. To import prog package, use the following command:8import "prog"9If you want to import a package from a directory that is not a subdirectory of the current directory, you need to use the following command:10import "github.com/your-username/your-repository-name/your-subdirectory-name"11In the above example, the prog package is in a subdirectory of the current directory. So, the correct way to import the prog package is:12import "prog"13import "github.com/your-username/your-repository-name/your-subdirectory-name"14For example, if you want to import the prog package from the following directory:15You need to use the following command to import the prog package:16import "github.com/your-username/your-repository-name/your-subdirectory-name"17If you want to import the prog package from the following directory:18You need to use the following command to import the prog package:19import "github.com/your-username/your-repository-name/your-subdirectory-name/your-sub-subdirectory-name"20If you want to import the prog package from the following directory:21You need to use the following command to import the prog package:22import "github.com/your-username/your-repository-name"23If you want to import the prog package from the following directory:

MakeReturnArg

Using AI Code Generation

1import (2func main() {3	slice := make([]int, 10)4	for i := 0; i < 10; i++ {5		slice[i] = rand.Intn(100)6	}7	fmt.Println(slice)8	fmt.Println("The largest number is", largest(slice))9}10func largest(slice []int) int {11	for i := 1; i < len(slice); i++ {12		if slice[i] > largest {13		}14	}15}16import (17func main() {18	slice := make([]int, 10)19	for i := 0; i < 10; i++ {20		slice[i] = rand.Intn(100)21	}22	fmt.Println(slice)23	fmt.Println("The smallest number is", smallest(slice))24}25func smallest(slice []int) int {26	for i := 1; i < len(slice); i++ {27		if slice[i] < smallest {28		}29	}30}

MakeReturnArg

Using AI Code Generation

1import (2func main() {3	fmt.Println(reflect.ValueOf(3).Interface())4}5import (6func main() {7	fmt.Println(reflect.ValueOf(3).Interface())8}9import (10func main() {11	fmt.Println(reflect.ValueOf(3).Interface())12}13import (14func main() {15	fmt.Println(reflect.ValueOf(3).Interface())16}17import (18func main() {19	fmt.Println(reflect.ValueOf(3).Interface())20}21import (22func main() {23	fmt.Println(reflect.ValueOf(3).Interface())24}25import (

MakeReturnArg

Using AI Code Generation

1import (2func main() {3	target, err := targets.Get("linux", "amd64")4	if err != nil {5		fmt.Println(err)6	}7	p := prog.MakeProg(target)8	f := prog.MakeFile("test.c")9	fn := prog.MakeFunc("test")10	b := prog.MakeInstrBlock()11	c := prog.MakeCall(target.Syscalls[1])12	r := prog.MakeReturnArg(target.Syscalls[1].Ret)13	b.Instrs = append(b.Instrs, c)14	fn.Blocks = append(fn.Blocks, b)15	f.Funcs = append(f.Funcs, fn)16	p.Files = append(p.Files, f)17	fmt.Println(p.Serialize())18}

MakeReturnArg

Using AI Code Generation

1import "fmt"2func main() {3    p := prog{1, 2}4    fmt.Println(p)5    p2 := p.MakeReturnArg()6    fmt.Println(p2)7}8{1 2}9{1 2}10import "fmt"11type prog struct {12}13func (p *prog) change() {14}15func main() {16    p := prog{1, 2}17    fmt.Println(p)18    p.change()19    fmt.Println(p)20}21{1 2}22{6 7}23import "fmt"24type prog struct {25}26func (p prog) change() {27}28func main() {29    p := prog{1, 2}30    fmt.Println(p)31    p.change()32    fmt.Println(p)33}34{1 2}35{1 2}

MakeReturnArg

Using AI Code Generation

1import (2func main() {3    p := gobuild.NewProg()4    f := p.MakeFunc("add", []gobuild.Arg{5        p.MakeArg("int", "arg1"),6        p.MakeArg("string", "arg2"),7    }, []gobuild.Arg{8        p.MakeReturnArg("float", "result"),9    })10    f.AddReturn(p.MakeConst("float", "3.14"))11    file := p.MakeFile("add.go")12    file.AddFunc(f)13    fmt.Println(file)14}15import (16func main() {17    p := gobuild.NewProg()18    f := p.MakeFunc("add", []gobuild.Arg{19        p.MakeArg("int", "arg1"),20        p.MakeArg("string", "arg2"),21    }, []gobuild.Arg{22        p.MakeReturnArg("float", "result"),23    })24    f.AddReturn(p.MakeConst("float", "3.14"))

MakeReturnArg

Using AI Code Generation

1import (2func main() {3	var k reflect.Value = reflect.MakeReturnArg(reflect.TypeOf(i))4	fmt.Printf("%v", k)5}6import (7func main() {8	var i reflect.Value = reflect.MakeSlice(reflect.TypeOf([]int{1, 2, 3}), 3, 3)9	fmt.Printf("%v", i)10}11import (12func main() {13	var i reflect.Value = reflect.MakeString("Hello World")14	fmt.Printf("%v", i)15}16import (17func main() {

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.