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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("

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