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

Copied to Clipboard!

How to use assignSize method of prog Package

Best Syzkaller code snippet using prog.assignSize

size.go

Source:size.go

...9	ParentRef = "parent"10	// Special reference directly to syscall arguments used in len targets.11	SyscallRef = "syscall"12)13func (target *Target) assignSizes(args []Arg, parentsMap map[Arg]Arg, syscallArgs []Arg, autos map[Arg]bool) {14	for _, arg := range args {15		if arg = InnerArg(arg); arg == nil {16			continue // Pointer to optional len field, no need to fill in value.17		}18		typ, ok := arg.Type().(*LenType)19		if !ok {20			continue21		}22		if autos != nil {23			if !autos[arg] {24				continue25			}26			delete(autos, arg)27		}28		a := arg.(*ConstArg)29		if typ.Path[0] == SyscallRef {30			target.assignSize(a, nil, typ.Path[1:], syscallArgs, parentsMap)31		} else {32			target.assignSize(a, a, typ.Path, args, parentsMap)33		}34	}35}36func (target *Target) assignSize(dst *ConstArg, pos Arg, path []string, args []Arg, parentsMap map[Arg]Arg) {37	elem := path[0]38	path = path[1:]39	var offset uint6440	for _, buf := range args {41		if elem != buf.Type().FieldName() {42			offset += buf.Size()43			continue44		}45		buf = InnerArg(buf)46		if buf == nil {47			dst.Val = 0 // target is an optional pointer48			return49		}50		if len(path) == 0 {51			dst.Val = target.computeSize(buf, offset, dst.Type().(*LenType))52		} else {53			target.assignSize(dst, buf, path, buf.(*GroupArg).Inner, parentsMap)54		}55		return56	}57	if elem == ParentRef {58		buf := parentsMap[pos]59		if len(path) == 0 {60			dst.Val = target.computeSize(buf, noOffset, dst.Type().(*LenType))61		} else {62			target.assignSize(dst, buf, path, buf.(*GroupArg).Inner, parentsMap)63		}64		return65	}66	for buf := parentsMap[pos]; buf != nil; buf = parentsMap[buf] {67		if elem != buf.Type().TemplateName() {68			continue69		}70		if len(path) == 0 {71			dst.Val = target.computeSize(buf, noOffset, dst.Type().(*LenType))72		} else {73			target.assignSize(dst, buf, path, buf.(*GroupArg).Inner, parentsMap)74		}75		return76	}77	var argNames []string78	for _, arg := range args {79		argNames = append(argNames, arg.Type().FieldName())80	}81	panic(fmt.Sprintf("len field %q references non existent field %q, pos=%q/%q, argsMap: %+v",82		dst.Type().FieldName(), elem, pos.Type().Name(), pos.Type().FieldName(), argNames))83}84const noOffset = ^uint64(0)85func (target *Target) computeSize(arg Arg, offset uint64, lenType *LenType) uint64 {86	if lenType.Offset {87		if offset == noOffset {88			panic("offset of a non-field")89		}90		return offset * 8 / lenType.BitSize91	}92	bitSize := lenType.BitSize93	if bitSize == 0 {94		bitSize = 895	}96	switch arg.Type().(type) {97	case *VmaType:98		a := arg.(*PointerArg)99		return a.VmaSize * 8 / bitSize100	case *ArrayType:101		a := arg.(*GroupArg)102		if lenType.BitSize != 0 {103			return a.Size() * 8 / bitSize104		}105		return uint64(len(a.Inner))106	default:107		return arg.Size() * 8 / bitSize108	}109}110func (target *Target) assignSizesArray(args []Arg, autos map[Arg]bool) {111	parentsMap := make(map[Arg]Arg)112	for _, arg := range args {113		ForeachSubArg(arg, func(arg Arg, _ *ArgCtx) {114			if _, ok := arg.Type().(*StructType); ok {115				for _, field := range arg.(*GroupArg).Inner {116					parentsMap[InnerArg(field)] = arg117				}118			}119		})120	}121	target.assignSizes(args, parentsMap, args, autos)122	for _, arg := range args {123		ForeachSubArg(arg, func(arg Arg, _ *ArgCtx) {124			if _, ok := arg.Type().(*StructType); ok {125				target.assignSizes(arg.(*GroupArg).Inner, parentsMap, args, autos)126			}127		})128	}129}130func (target *Target) assignSizesCall(c *Call) {131	target.assignSizesArray(c.Args, nil)132}133func (r *randGen) mutateSize(arg *ConstArg, parent []Arg) bool {134	typ := arg.Type().(*LenType)135	elemSize := typ.BitSize / 8136	if elemSize == 0 {137		elemSize = 1138		// TODO(dvyukov): implement path support for size mutation.139		if len(typ.Path) == 1 {140			for _, field := range parent {141				if typ.Path[0] != field.Type().FieldName() {142					continue143				}144				if inner := InnerArg(field); inner != nil {145					switch targetType := inner.Type().(type) {...

assignSize

Using AI Code Generation

1import "fmt"2type prog struct {3}4func (p *prog) assignSize(size int) {5}6func main() {7  p := prog{}8  p.assignSize(100)9  fmt.Println(p.size)10}

assignSize

Using AI Code Generation

1import (2type prog struct {3}4func (p *prog) assignSize(size int) {5}6func main() {7	p1 := prog{8	}9	fmt.Println(p1)10	p1.assignSize(2)11	fmt.Println(p1)12}13{hello 1 ram}14{hello 2 ram}15import (16type prog struct {17}18func main() {19	p1 := prog{20	}21	fmt.Println(p1)22	fmt.Println(p1)23}24{hello 1 ram}25{hi 1 ram}26import (27type prog struct {28}29func main() {30	p1 := prog{31	}32	fmt.Println(p1)33	fmt.Println(p1)34}35{hello 1 ram}36{hi 1 ram}37import (38type prog struct {39}40func main() {

assignSize

Using AI Code Generation

1import "fmt"2func main() {3    p.assignSize(10)4    fmt.Println(p.getSize())5}6import "fmt"7func main() {8    p.assignSize(10)9    fmt.Println(p.getSize())10}11import "fmt"12func main() {13    p.assignSize(10)14    fmt.Println(p.getSize())15}16import "fmt"17func main() {18    p.assignSize(10)19    fmt.Println(p.getSize())20}21import "fmt"22func main() {23    p.assignSize(10)24    fmt.Println(p.getSize())25}26import "fmt"27func main() {28    p.assignSize(10)29    fmt.Println(p.getSize())30}31import "fmt"32func main() {33    p.assignSize(10)34    fmt.Println(p.getSize())35}36import "fmt"37func main() {38    p.assignSize(10)39    fmt.Println(p.getSize())40}41import "fmt"42func main() {43    p.assignSize(10)44    fmt.Println(p.getSize())45}46import "fmt"47func main() {48    p.assignSize(10)49    fmt.Println(p.getSize())50}51import "fmt"52func main() {

assignSize

Using AI Code Generation

1import (2func main() {3	p.assignSize(10)4	fmt.Println(p.getSize())5}6import (7func main() {8	p.assignSize(10)9	fmt.Println(p.getSize())10}

assignSize

Using AI Code Generation

1import "fmt"2func main() {3    p.assignSize(10)4    fmt.Println(p)5}6import "fmt"7func main() {8    p.assignSize(10)9    fmt.Println(p)10}11import "fmt"12func main() {13    p.assignSize(10)14    fmt.Println(p)15}16import "fmt"17func main() {18    p.assignSize(10)19    fmt.Println(p)20}21import "fmt"22func main() {23    p.assignSize(10)24    fmt.Println(p)25}26import "fmt"27func main() {28    p.assignSize(10)29    fmt.Println(p)30}31import "fmt"32func main() {33    p.assignSize(10)34    fmt.Println(p)35}36import "fmt"37func main() {38    p.assignSize(10)39    fmt.Println(p)40}

assignSize

Using AI Code Generation

1import "fmt"2func main() {3    p1.assignSize(10)4    fmt.Println("Size of p1 is", p1.size)5}6import "fmt"7type prog struct {8}9func (p *prog) setSize(size int) {10}11func (p *prog) getSize() int {12}13func main() {14    p1.setSize(10)15    fmt.Println("Size of p1 is", p1.getSize())16}

assignSize

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Print("Enter a size: ")4    fmt.Scan(&size)5    p := prog{size: size}6    p.assignSize(10)7    fmt.Println(p.size)8}9In the above example, we define the assignSize() method on

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.