How to use recurseStructs method of proggen Package

Best Syzkaller code snippet using proggen.recurseStructs

proggen.go

Source:proggen.go

...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, false...

recurseStructs

Using AI Code Generation

1import (2func main() {3	f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)4	if err != nil {5		fmt.Println(err)6	}7	x.recurseStructs(f.Decls)8}9import (10func main() {11	f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)12	if err != nil {13		fmt.Println(err)14	}15	x.recurseStructs(f.Decls)16}17import (18func main() {19	f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)20	if err != nil {21		fmt.Println(err)22	}23	x.recurseStructs(f.Decls)24}25import (26func main() {27	f, err := parser.ParseFile(fset, "2.go", nil, parser.ParseComments)28	if err != nil {29		fmt.Println(err)30	}31	x.recurseStructs(f.Decls)32}33import (34func main() {

recurseStructs

Using AI Code Generation

1import (2type proggen struct {3}4func (p *proggen) recurseStructs(st reflect.Type) {5    for i := 0; i < st.NumField(); i++ {6        field := st.Field(i)7        if fieldType.Kind() == reflect.Struct {8            fmt.Println(p.structName)9            p.recurseStructs(fieldType)10        }11    }12}13func main() {14    p := new(proggen)15    p.recurseStructs(reflect.TypeOf(struct {16        A struct {17            B struct {18                C struct {19                }20            }21        }22    }{}))23}

recurseStructs

Using AI Code Generation

1import "fmt"2import "reflect"3type X struct {4}5type Y struct {6}7func main() {8  y := Y{1.5, []int{1, 2, 3}, X{1, "hello"}}9  fmt.Println(y)10  fmt.Println(reflect.TypeOf(y))11  proggen := new(Proggen)12  proggen.recurseStructs(reflect.TypeOf(y), "y")13}14import "fmt"15import "reflect"16type Proggen struct {17}18func (p *Proggen) recurseStructs(t reflect.Type, name string) {19  for i := 0; i < t.NumField(); i++ {20    field := t.Field(i)21    if field.Type.Kind() == reflect.Struct {22      p.recurseStructs(field.Type, name+"."+field.Name)23    } else {24      fmt.Println("field", field.Name, "of", name, "is", field.Type)25    }26  }27}28import "testing"29func TestRecurseStructs(t *testing.T) {30  p := new(Proggen)31  p.recurseStructs(reflect.TypeOf(Y{}), "y")32}33import "testing"34func TestRecurseStructs(t *testing.T) {35  p := new(Proggen)36  p.recurseStructs(reflect.TypeOf(Y{}), "y")37}

recurseStructs

Using AI Code Generation

1func main() {2    gen := proggen.NewProgGen()3    s := proggen.Struct{4        Fields: []proggen.Field{5            {Name: "Name", Type: "string"},6            {Name: "Age", Type: "int"},7        },8    }9    s2 := proggen.Struct{10        Fields: []proggen.Field{11            {Name: "Name", Type: "string"},12            {Name: "Age", Type: "int"},13        },14    }15    gen.AddStructs(s, s2)16    gen.RecurseStructs()17    fmt.Println(gen.Output)18}19func main() {20    gen := proggen.NewProgGen()21    s := proggen.Struct{22        Fields: []proggen.Field{23            {Name: "Name", Type: "string"},24            {Name: "Age", Type: "int"},25        },26    }27    s2 := proggen.Struct{28        Fields: []proggen.Field{29            {Name: "Name", Type: "string"},30            {Name: "Age", Type: "int"},31            {Name: "MyStruct", Type: "MyStruct"},32        },33    }34    gen.AddStructs(s, s2)35    gen.RecurseStructs()36    fmt.Println(gen.Output)37}

recurseStructs

Using AI Code Generation

1import (2func main() {3	proggen.RecurseStructs("test1", "test2")4}5import (6type Test1 struct {7}8type Test2 struct {9}10func RecurseStructs(s1 string, s2 string) {11	fmt.Println(GenerateCode(&test1, s1))12	fmt.Println(GenerateCode(&test2, s2))13}14func GenerateCode(s interface{}, name string) string {15	t := reflect.TypeOf(s).Elem()16	v := reflect.ValueOf(s).Elem()17	n := t.NumField()18	code += "type " + name + " struct {" + "19	for i := 0; i < n; i++ {20		tf := t.Field(i)21		vf := v.Field(i)22		if tf.Type.Kind() == reflect.Ptr {23			tf = tf.Type.Elem()24			vf = vf.Elem()25			if tf.Kind() == reflect.Struct {26				n := tf.Name()27				if n == name {

recurseStructs

Using AI Code Generation

1import (2type Person struct {3}4func main() {5	p := Person{"John", 23}6	t := reflect.TypeOf(p)7	pg := proggen{}8	pg.recurseStructs(t)9	pg.genCode()10	pg.genCode()11	fmt.Println(pg.createStruct())12}13import (14type proggen struct {15}16func (pg *proggen) recurseStructs(t reflect.Type) {17	n := t.NumField()18	for i := 0; i < n; i++ {19		ft := t.Field(i)20		if ft.Type.Kind() == reflect.Struct {21			pg.recurseStructs(ft.Type)22		} else {23			pg.code += fmt.Sprintf("\t%s %s\n", fn, ft.Type)24		}25	}26}27func (pg *proggen) createStruct() interface{} {28	fset := token.NewFileSet()29	f := &ast.File{}30	s := &ast.StructType{}

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