How to use genStruct method of proggen Package

Best Syzkaller code snippet using proggen.genStruct

proggen.go

Source:proggen.go

...158		return ctx.genPtr(a, dir, traceArg)159	case *prog.BufferType:160		return ctx.genBuffer(a, dir, traceArg)161	case *prog.StructType:162		return ctx.genStruct(a, dir, traceArg)163	case *prog.ArrayType:164		return ctx.genArray(a, dir, traceArg)165	case *prog.UnionType:166		return ctx.genUnionArg(a, dir, traceArg)167	case *prog.VmaType:168		return ctx.genVma(a, dir, traceArg)169	default:170		log.Fatalf("unsupported type: %#v", syzType)171	}172	return nil173}174func (ctx *context) genVma(syzType *prog.VmaType, dir prog.Dir, _ parser.IrType) prog.Arg {175	npages := uint64(1)176	if syzType.RangeBegin != 0 || syzType.RangeEnd != 0 {177		npages = syzType.RangeEnd178	}179	return prog.MakeVmaPointerArg(syzType, dir, ctx.builder.AllocateVMA(npages), npages)180}181func (ctx *context) genArray(syzType *prog.ArrayType, dir prog.Dir, traceType parser.IrType) prog.Arg {182	var args []prog.Arg183	switch a := traceType.(type) {184	case *parser.GroupType:185		for i := 0; i < len(a.Elems); i++ {186			args = append(args, ctx.genArg(syzType.Elem, dir, a.Elems[i]))187		}188	default:189		log.Fatalf("unsupported type for array: %#v", traceType)190	}191	return prog.MakeGroupArg(syzType, dir, args)192}193func (ctx *context) genStruct(syzType *prog.StructType, dir prog.Dir, traceType parser.IrType) prog.Arg {194	var args []prog.Arg195	switch a := traceType.(type) {196	case *parser.GroupType:197		j := 0198		if ret, recursed := ctx.recurseStructs(syzType, dir, a); recursed {199			return ret200		}201		for i := range syzType.Fields {202			if prog.IsPad(syzType.Fields[i].Type) {203				args = append(args, syzType.Fields[i].DefaultArg(dir))204				continue205			}206			// If the last n fields of a struct are zero or NULL, strace will occasionally omit those values207			// this creates a mismatch in the number of elements in the ir type and in208			// our descriptions. We generate default values for omitted fields209			if j >= len(a.Elems) {210				args = append(args, syzType.Fields[i].DefaultArg(dir))211			} else {212				args = append(args, ctx.genArg(syzType.Fields[i].Type, dir, a.Elems[j]))213			}214			j++215		}216	case *parser.BufferType:217		// We could have a case like the following:218		// ioctl(3, 35111, {ifr_name="\x6c\x6f", ifr_hwaddr=00:00:00:00:00:00}) = 0219		// if_hwaddr gets parsed as a BufferType but our syscall descriptions have it as a struct type220		return syzType.DefaultArg(dir)221	default:222		log.Fatalf("unsupported type for struct: %#v", a)223	}224	return prog.MakeGroupArg(syzType, dir, args)225}226// recurseStructs handles cases where syzType corresponds to struct descriptions like227// sockaddr_storage_in6 {228//        addr    sockaddr_in6229// } [size[SOCKADDR_STORAGE_SIZE], align_ptr]230// which need to be recursively generated. It returns true if we needed to recurse231// along with the generated argument and false otherwise.232func (ctx *context) recurseStructs(syzType *prog.StructType, dir prog.Dir, traceType *parser.GroupType) (prog.Arg, bool) {233	// only consider structs with one non-padded field234	numFields := 0235	for _, field := range syzType.Fields {236		if prog.IsPad(field.Type) {237			continue238		}239		numFields++240	}241	if numFields != 1 {242		return nil, false243	}244	// the strace group type needs to have more one field (a mismatch)245	if len(traceType.Elems) == 1 {246		return nil, false247	}248	// first field needs to be a struct249	switch t := syzType.Fields[0].Type.(type) {250	case *prog.StructType:251		var args []prog.Arg252		// first element and traceType should have the same number of elements253		if len(t.Fields) != len(traceType.Elems) {254			return nil, false255		}256		args = append(args, ctx.genStruct(t, dir, traceType))257		for _, field := range syzType.Fields[1:] {258			args = append(args, field.DefaultArg(dir))259		}260		return prog.MakeGroupArg(syzType, dir, args), true261	}262	return nil, false263}264func (ctx *context) genUnionArg(syzType *prog.UnionType, dir prog.Dir, straceType parser.IrType) prog.Arg {265	if straceType == nil {266		log.Logf(1, "generating union arg. straceType is nil")267		return syzType.DefaultArg(dir)268	}269	log.Logf(4, "generating union arg: %s %#v", syzType.TypeName, straceType)270	// Unions are super annoying because they sometimes need to be handled case by case...

genStruct

Using AI Code Generation

1import "fmt"2import "github.com/golang/example/stringutil"3func main() {4    fmt.Printf(stringutil.Reverse("!oG ,olleH"))5}6func Reverse(s string) string7go/importer

genStruct

Using AI Code Generation

1import (2func main() {3	gen.GenStruct()4	fmt.Println("Hello World!")5}6import (7func main() {8	gen.GenIf()9	fmt.Println("Hello World!")10}11import (12func main() {13	gen.GenFor()14	fmt.Println("Hello World!")15}16import (17func main() {18	gen.GenSwitch()19	fmt.Println("Hello World!")20}21import (22func main() {23	gen.GenFunc()24	fmt.Println("Hello World!")25}26import (27func main() {28	gen.GenSlice()29	fmt.Println("Hello World!")30}31import (32func main() {33	gen.GenMap()34	fmt.Println("Hello World!")35}36import (37func main() {38	gen.GenArray()39	fmt.Println("Hello World!")40}41import (42func main() {43	gen.GenChan()44	fmt.Println("Hello World!")45}

genStruct

Using AI Code Generation

1import "fmt"2import "proggen"3func main() {4    fmt.Println("Hello, playground")5    p.GenStruct("test")6}7import "fmt"8type ProgGen struct {9}10func (p ProgGen) GenStruct(name string) {11    fmt.Println("Generated struct: " + name)12}

genStruct

Using AI Code Generation

1import (2func main() {3    proggen.genStruct("struct1", "field1", "field2", "field3")4    proggen.genStruct("struct2", "field1", "field2", "field3")5    proggen.genStruct("struct3", "field1", "field2", "field3")6    proggen.genStruct("struct4", "field1", "field2", "field3")7    proggen.genStruct("struct5", "field1", "field2", "field3")8    proggen.genStruct("struct6", "field1", "field2", "field3")9    proggen.genStruct("struct7", "field1", "field2", "field3")10    proggen.genStruct("struct8", "field1", "field2", "field3")11    proggen.genStruct("struct9", "field1", "field2", "field3")12    proggen.genStruct("struct10", "field1", "field2", "field3")13    proggen.genStruct("struct11", "field1", "field2", "field3")14    proggen.genStruct("struct12", "field1", "field2", "field3")15    proggen.genStruct("struct13", "field1", "field2", "field3")16    proggen.genStruct("struct14", "field1", "field2", "field3")17    proggen.genStruct("struct15", "field1", "field2", "field3")18    proggen.genStruct("struct16", "field1", "field2", "field3")19    proggen.genStruct("struct17", "field1", "field2", "field3")20    proggen.genStruct("struct18", "field1", "field2", "field3")21    proggen.genStruct("struct19", "field1", "field2", "field3")22    proggen.genStruct("struct20", "field1", "field2", "field3")23    proggen.genStruct("struct21", "field1", "field2", "field3")24    proggen.genStruct("struct22", "field1", "field2", "field3")25    proggen.genStruct("struct

genStruct

Using AI Code Generation

1import "fmt"2func main() {3    var pg = new(proggen)4    pg.genStruct("struct1")5    pg.genStruct("struct2")6    fmt.Println(pg)7}8import "fmt"9type proggen struct {10}11func (pg *proggen) genStruct(name string) {12    pg.Structs = append(pg.Structs, name)13    fmt.Println("Struct generated:", name)14}15type Person struct {16}17type People struct {18}19func main() {20    people := People{21        People: map[string]struct{22        }{23            "John": {24            },25            "Jane": {26            },27        },28    }29    fmt.Println(people)30}31type Person struct {32}33func main() {34    p := Person{35    }36    for name, value := range p {37        fmt.Println(name, value)38    }39}40type Person struct {41}42type People struct {43}44func main() {45    people := People{46        People: map[string]struct{

genStruct

Using AI Code Generation

1import (2func main() {3    pg.GenStruct("test")4}5import (6func main() {7    pg.GenStruct("test")8}9import (10func main() {11    pg.GenStruct("test")12}13import (14func main() {15    pg.GenStruct("test")16}17import (18func main() {19    pg.GenStruct("test")20}21import (22func main() {23    pg.GenStruct("test")24}25import (26func main() {27    pg.GenStruct("test")28}29import (30func main() {31    pg.GenStruct("

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.