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How to use checkMissingAttrs method of main Package

Best Syzkaller code snippet using main.checkMissingAttrs

check.go

Source:check.go

...377			return nil, err378		}379		warnings = append(warnings, warnings1...)380	}381	warnings = append(warnings, checkMissingAttrs(checkedAttrs)...)382	return warnings, nil383}384func checkNetlinkStruct(locs map[string]*ast.Struct, symbols map[string][]symbolizer.Symbol, rodata *elf.Section,385	structMap map[string]prog.Type, checkedAttrs map[string]*checkAttr, typ prog.Type) ([]Warn, error) {386	name := typ.TemplateName()387	astStruct := locs[name]388	if astStruct == nil {389		return nil, nil390	}391	var fields []prog.Field392	switch t := typ.(type) {393	case *prog.StructType:394		fields = t.Fields395	case *prog.UnionType:396		fields = t.Fields397	}398	if !isNetlinkPolicy(fields) {399		return nil, nil400	}401	kernelName := name402	var ss []symbolizer.Symbol403	// In some cases we split a single policy into multiple ones404	// (more precise description), so try to match our foo_bar_baz405	// with kernel foo_bar and foo as well.406	for kernelName != "" {407		ss = symbols[kernelName]408		if len(ss) != 0 {409			break410		}411		underscore := strings.LastIndexByte(kernelName, '_')412		if underscore == -1 {413			break414		}415		kernelName = kernelName[:underscore]416	}417	if len(ss) == 0 {418		return []Warn{{pos: astStruct.Pos, typ: WarnNoNetlinkPolicy, msg: name}}, nil419	}420	var warnings []Warn421	var warnings1 *[]Warn422	var policy1 []nlaPolicy423	var attrs1 map[int]bool424	// We may have several symbols with the same name (they frequently have internal linking),425	// in such case we choose the one that produces fewer warnings.426	for _, symb := range ss {427		if symb.Size == 0 || symb.Size%int(unsafe.Sizeof(nlaPolicy{})) != 0 {428			warnings = append(warnings, Warn{pos: astStruct.Pos, typ: WarnNetlinkBadSize,429				msg: fmt.Sprintf("%v (%v), size %v", kernelName, name, ss[0].Size)})430			continue431		}432		binary := make([]byte, symb.Size)433		addr := symb.Addr - rodata.Addr434		if _, err := rodata.ReadAt(binary, int64(addr)); err != nil {435			return nil, fmt.Errorf("failed to read policy %v (%v) at %v: %v",436				kernelName, name, symb.Addr, err)437		}438		policy := (*[1e6]nlaPolicy)(unsafe.Pointer(&binary[0]))[:symb.Size/int(unsafe.Sizeof(nlaPolicy{}))]439		warnings2, attrs2, err := checkNetlinkPolicy(structMap, typ, fields, astStruct, policy)440		if err != nil {441			return nil, err442		}443		if warnings1 == nil || len(*warnings1) > len(warnings2) {444			warnings1 = &warnings2445			policy1 = policy446			attrs1 = attrs2447		}448	}449	if warnings1 != nil {450		warnings = append(warnings, *warnings1...)451		ca := checkedAttrs[kernelName]452		if ca == nil {453			ca = &checkAttr{454				pos:    astStruct.Pos,455				name:   name,456				policy: policy1,457				attrs:  make(map[int]bool),458			}459			checkedAttrs[kernelName] = ca460		}461		for attr := range attrs1 {462			ca.attrs[attr] = true463		}464	}465	return warnings, nil466}467type checkAttr struct {468	pos    ast.Pos469	name   string470	policy []nlaPolicy471	attrs  map[int]bool472}473func checkMissingAttrs(checkedAttrs map[string]*checkAttr) []Warn {474	// Missing attribute checking is a bit tricky because we may split a single475	// kernel policy into several policies for better precision.476	// They have different names, but map to the same kernel policy.477	// We want to report a missing attribute iff it's missing in all copies of the policy.478	var warnings []Warn479	for _, ca := range checkedAttrs {480		var missing []int481		for i, pol := range ca.policy {482			// Ignore attributes that are not described in the policy483			// (some of them are unused at all, however there are cases where484			// they are not described but used as inputs, and these are actually485			// the worst ones).486			if !ca.attrs[i] && (pol.typ != NLA_UNSPEC && pol.typ != NLA_REJECT || pol.len != 0) {487				missing = append(missing, i)...

checkMissingAttrs

Using AI Code Generation

1import (2func main() {3	missingAttrs, err = checkMissingAttrs("2.go")4	if err != nil {5		fmt.Println("Error: ", err)6		os.Exit(1)7	} else {8		fmt.Println("Missing attributes are: ", missingAttrs)9	}10}11import (12func main() {13	missingAttrs, err = checkMissingAttrs("2.go")14	if err != nil {15		fmt.Println("Error: ", err)16		os.Exit(1)17	} else {18		fmt.Println("Missing attributes are: ", missingAttrs)19	}20}21import (22func main() {23	missingAttrs, err = checkMissingAttrs("2.go")24	if err != nil {25		fmt.Println("Error: ", err)26		os.Exit(1)27	} else {28		fmt.Println("Missing attributes are: ", missingAttrs)29	}30}31import (32func main() {33	missingAttrs, err = checkMissingAttrs("2.go")34	if err != nil {35		fmt.Println("Error: ", err)36		os.Exit(1)37	} else {38		fmt.Println("Missing attributes are: ", missingAttrs)39	}40}41import (42func main() {43	missingAttrs, err = checkMissingAttrs("2.go")44	if err != nil {45		fmt.Println("Error: ", err)46		os.Exit(1)47	} else {48		fmt.Println("Missing attributes are: ", missingAttrs)49	}50}

checkMissingAttrs

Using AI Code Generation

1import (2func main() {3	type person struct {4	}5	p := person{name: "John", age: 25}6	fmt.Println(checkMissingAttrs(p, "name", "age"))7}8func checkMissingAttrs(i interface{}, attrs ...string) bool {9	t := reflect.TypeOf(i)10	for _, attr := range attrs {11		if _, ok := t.FieldByName(attr); !ok {12		}13	}14}

checkMissingAttrs

Using AI Code Generation

1import (2func main() {3    var missingAttrs = checkMissingAttrs("name", "age", "height")4    if len(missingAttrs) > 0 {5        fmt.Println("Missing attributes: ", missingAttrs)6    } else {7        fmt.Println("All attributes are present")8    }9}10import (11func checkMissingAttrs(attrs ...string) []string {12    for _, attr := range attrs {13        if attr == "" {14            missingAttrs = append(missingAttrs, attr)15        }16    }17}18import (19func main() {20    var missingAttrs = checkMissingAttrs("name", "age", "height")21    if len(missingAttrs) > 0 {22        fmt.Println("Missing attributes: ", missingAttrs)23    } else {24        fmt.Println("All attributes are present")25    }26}27import (28func checkMissingAttrs(attrs ...string) []string {29    for _, attr := range attrs {30        if attr == "" {31            missingAttrs = append(missingAttrs, attr)32        }33    }34}35import (36func main() {37    fmt.Println("Hello World")38}

checkMissingAttrs

Using AI Code Generation

1import (2func main() {3	data, err := ioutil.ReadFile("test.xml")4	if err != nil {5		fmt.Println("Error reading file:", err)6	}7	missingAttrs, err := checkMissingAttrs(string(data))8	if err != nil {9		fmt.Println("Error checking attributes:", err)10	}11	if missingAttrs == "" {12		fmt.Println("All the required attributes are present in the xml")13	} else {14		fmt.Println("The following attributes are missing in the xml:", missingAttrs)15	}16}17import (18type Main struct {19}

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