How to use isDefaultArg method of prog Package

Best Syzkaller code snippet using prog.isDefaultArg

types.go

Source:types.go Github

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...84 // where Size == 0 and UnitSize equals to the underlying bitfield type size.85 UnitSize() uint6486 UnitOffset() uint6487 DefaultArg(dir Dir) Arg88 isDefaultArg(arg Arg) bool89 generate(r *randGen, s *state, dir Dir) (arg Arg, calls []*Call)90 mutate(r *randGen, s *state, arg Arg, ctx ArgCtx) (calls []*Call, retry, preserve bool)91 getMutationPrio(target *Target, arg Arg, ignoreSpecial bool) (prio float64, stopRecursion bool)92 minimize(ctx *minimizeArgsCtx, arg Arg, path string) bool93 ref() Ref94 setRef(ref Ref)95}96type Ref uint3297func (ti Ref) String() string { panic("prog.Ref method called") }98func (ti Ref) Name() string { panic("prog.Ref method called") }99func (ti Ref) TemplateName() string { panic("prog.Ref method called") }100func (ti Ref) Optional() bool { panic("prog.Ref method called") }101func (ti Ref) Varlen() bool { panic("prog.Ref method called") }102func (ti Ref) Size() uint64 { panic("prog.Ref method called") }103func (ti Ref) TypeBitSize() uint64 { panic("prog.Ref method called") }104func (ti Ref) Format() BinaryFormat { panic("prog.Ref method called") }105func (ti Ref) BitfieldOffset() uint64 { panic("prog.Ref method called") }106func (ti Ref) BitfieldLength() uint64 { panic("prog.Ref method called") }107func (ti Ref) IsBitfield() bool { panic("prog.Ref method called") }108func (ti Ref) UnitSize() uint64 { panic("prog.Ref method called") }109func (ti Ref) UnitOffset() uint64 { panic("prog.Ref method called") }110func (ti Ref) DefaultArg(dir Dir) Arg { panic("prog.Ref method called") }111func (ti Ref) Clone() Type { panic("prog.Ref method called") }112func (ti Ref) isDefaultArg(arg Arg) bool { panic("prog.Ref method called") }113func (ti Ref) generate(r *randGen, s *state, dir Dir) (Arg, []*Call) { panic("prog.Ref method called") }114func (ti Ref) mutate(r *randGen, s *state, arg Arg, ctx ArgCtx) ([]*Call, bool, bool) {115 panic("prog.Ref method called")116}117func (ti Ref) getMutationPrio(target *Target, arg Arg, ignoreSpecial bool) (float64, bool) {118 panic("prog.Ref method called")119}120func (ti Ref) minimize(ctx *minimizeArgsCtx, arg Arg, path string) bool {121 panic("prog.Ref method called")122}123func (ti Ref) ref() Ref { panic("prog.Ref method called") }124func (ti Ref) setRef(ref Ref) { panic("prog.Ref method called") }125func IsPad(t Type) bool {126 if ct, ok := t.(*ConstType); ok && ct.IsPad {127 return true128 }129 return false130}131type TypeCommon struct {132 TypeName string133 // Static size of the type, or 0 for variable size types and all but last bitfields in the group.134 TypeSize uint64135 IsOptional bool136 IsVarlen bool137 self Ref138}139func (t *TypeCommon) Name() string {140 return t.TypeName141}142func (t *TypeCommon) TemplateName() string {143 name := t.TypeName144 if pos := strings.IndexByte(name, '['); pos != -1 {145 name = name[:pos]146 }147 return name148}149func (t *TypeCommon) Optional() bool {150 return t.IsOptional151}152func (t *TypeCommon) Size() uint64 {153 if t.IsVarlen {154 panic(fmt.Sprintf("static type size is not known: %#v", t))155 }156 return t.TypeSize157}158func (t *TypeCommon) TypeBitSize() uint64 {159 panic("cannot get the bitsize for a non-integer type")160}161func (t *TypeCommon) Varlen() bool {162 return t.IsVarlen163}164func (t *TypeCommon) Format() BinaryFormat {165 return FormatNative166}167func (t *TypeCommon) BitfieldOffset() uint64 {168 return 0169}170func (t *TypeCommon) BitfieldLength() uint64 {171 return 0172}173func (t *TypeCommon) UnitSize() uint64 {174 return t.Size()175}176func (t *TypeCommon) UnitOffset() uint64 {177 return 0178}179func (t *TypeCommon) IsBitfield() bool {180 return false181}182func (t *TypeCommon) ref() Ref {183 if t.self == 0 {184 panic("ref is not assigned yet")185 }186 return t.self187}188func (t *TypeCommon) setRef(ref Ref) {189 t.self = ref190}191type ResourceDesc struct {192 Name string193 Kind []string194 Values []uint64195 Ctors []ResourceCtor196}197type ResourceCtor struct {198 Call int // Index in Target.Syscalls199 Precise bool200}201type ResourceType struct {202 TypeCommon203 ArgFormat BinaryFormat204 Desc *ResourceDesc205}206func (t *ResourceType) String() string {207 return t.Name()208}209func (t *ResourceType) DefaultArg(dir Dir) Arg {210 return MakeResultArg(t, dir, nil, t.Default())211}212func (t *ResourceType) isDefaultArg(arg Arg) bool {213 a := arg.(*ResultArg)214 return a.Res == nil && a.OpDiv == 0 && a.OpAdd == 0 &&215 len(a.uses) == 0 && a.Val == t.Default()216}217func (t *ResourceType) Default() uint64 {218 return t.Desc.Values[0]219}220func (t *ResourceType) SpecialValues() []uint64 {221 return t.Desc.Values222}223func (t *ResourceType) Format() BinaryFormat {224 return t.ArgFormat225}226type IntTypeCommon struct {227 TypeCommon228 ArgFormat BinaryFormat229 BitfieldOff uint64230 BitfieldLen uint64231 BitfieldUnit uint64232 BitfieldUnitOff uint64233}234func (t *IntTypeCommon) String() string {235 return t.Name()236}237func (t *IntTypeCommon) Format() BinaryFormat {238 return t.ArgFormat239}240// Returns the size in bits for integers in binary format or 64 for string-formatted integers. The return241// value is used in computing limits and truncating other values.242func (t *IntTypeCommon) TypeBitSize() uint64 {243 if t.ArgFormat != FormatNative && t.ArgFormat != FormatBigEndian {244 // TODO: add special cases for mutation and generation of string-formatted integers.245 return 64246 }247 if t.BitfieldLen != 0 {248 return t.BitfieldLen249 }250 return t.TypeSize * 8251}252func (t *IntTypeCommon) BitfieldOffset() uint64 {253 return t.BitfieldOff254}255func (t *IntTypeCommon) BitfieldLength() uint64 {256 return t.BitfieldLen257}258func (t *IntTypeCommon) UnitSize() uint64 {259 if t.BitfieldLen != 0 {260 return t.BitfieldUnit261 }262 return t.Size()263}264func (t *IntTypeCommon) UnitOffset() uint64 {265 return t.BitfieldUnitOff266}267func (t *IntTypeCommon) IsBitfield() bool {268 return t.BitfieldLen != 0269}270type ConstType struct {271 IntTypeCommon272 Val uint64273 IsPad bool274}275func (t *ConstType) DefaultArg(dir Dir) Arg {276 return MakeConstArg(t, dir, t.Val)277}278func (t *ConstType) isDefaultArg(arg Arg) bool {279 return arg.(*ConstArg).Val == t.Val280}281func (t *ConstType) String() string {282 if t.IsPad {283 return fmt.Sprintf("pad[%v]", t.Size())284 }285 return fmt.Sprintf("const[%v, %v]", t.Val, t.IntTypeCommon.String())286}287type IntKind int288const (289 IntPlain IntKind = iota290 IntRange291)292type IntType struct {293 IntTypeCommon294 Kind IntKind295 RangeBegin uint64296 RangeEnd uint64297 Align uint64298}299func (t *IntType) DefaultArg(dir Dir) Arg {300 return MakeConstArg(t, dir, 0)301}302func (t *IntType) isDefaultArg(arg Arg) bool {303 return arg.(*ConstArg).Val == 0304}305type FlagsType struct {306 IntTypeCommon307 Vals []uint64 // compiler ensures that it's not empty308 BitMask bool309}310func (t *FlagsType) DefaultArg(dir Dir) Arg {311 return MakeConstArg(t, dir, 0)312}313func (t *FlagsType) isDefaultArg(arg Arg) bool {314 return arg.(*ConstArg).Val == 0315}316type LenType struct {317 IntTypeCommon318 BitSize uint64 // want size in multiple of bits instead of array size319 Offset bool // offset from the beginning of the parent struct or base object320 Path []string321}322func (t *LenType) DefaultArg(dir Dir) Arg {323 return MakeConstArg(t, dir, 0)324}325func (t *LenType) isDefaultArg(arg Arg) bool {326 return arg.(*ConstArg).Val == 0327}328type ProcType struct {329 IntTypeCommon330 ValuesStart uint64331 ValuesPerProc uint64332}333const (334 MaxPids = 32335 procDefaultValue = 0xffffffffffffffff // special value denoting 0 for all procs336)337func (t *ProcType) DefaultArg(dir Dir) Arg {338 return MakeConstArg(t, dir, procDefaultValue)339}340func (t *ProcType) isDefaultArg(arg Arg) bool {341 return arg.(*ConstArg).Val == procDefaultValue342}343type CsumKind int344const (345 CsumInet CsumKind = iota346 CsumPseudo347)348type CsumType struct {349 IntTypeCommon350 Kind CsumKind351 Buf string352 Protocol uint64 // for CsumPseudo353}354func (t *CsumType) String() string {355 return "csum"356}357func (t *CsumType) DefaultArg(dir Dir) Arg {358 return MakeConstArg(t, dir, 0)359}360func (t *CsumType) isDefaultArg(arg Arg) bool {361 return arg.(*ConstArg).Val == 0362}363type VmaType struct {364 TypeCommon365 RangeBegin uint64 // in pages366 RangeEnd uint64367}368func (t *VmaType) String() string {369 return "vma"370}371func (t *VmaType) DefaultArg(dir Dir) Arg {372 return MakeSpecialPointerArg(t, dir, 0)373}374func (t *VmaType) isDefaultArg(arg Arg) bool {375 a := arg.(*PointerArg)376 return a.IsSpecial() && a.Address == 0377}378type BufferKind int379const (380 BufferBlobRand BufferKind = iota381 BufferBlobRange382 BufferString383 BufferFilename384 BufferText385)386type TextKind int387const (388 TextTarget TextKind = iota389 TextX86Real390 TextX86bit16391 TextX86bit32392 TextX86bit64393 TextArm64394)395type BufferType struct {396 TypeCommon397 Kind BufferKind398 RangeBegin uint64 // for BufferBlobRange kind399 RangeEnd uint64 // for BufferBlobRange kind400 Text TextKind // for BufferText401 SubKind string402 Values []string // possible values for BufferString kind403 NoZ bool // non-zero terminated BufferString/BufferFilename404}405func (t *BufferType) String() string {406 return "buffer"407}408func (t *BufferType) DefaultArg(dir Dir) Arg {409 if dir == DirOut {410 var sz uint64411 if !t.Varlen() {412 sz = t.Size()413 }414 return MakeOutDataArg(t, dir, sz)415 }416 var data []byte417 if !t.Varlen() {418 data = make([]byte, t.Size())419 }420 return MakeDataArg(t, dir, data)421}422func (t *BufferType) isDefaultArg(arg Arg) bool {423 a := arg.(*DataArg)424 if a.Size() == 0 {425 return true426 }427 if a.Type().Varlen() {428 return false429 }430 if a.Dir() == DirOut {431 return true432 }433 for _, v := range a.Data() {434 if v != 0 {435 return false436 }437 }438 return true439}440type ArrayKind int441const (442 ArrayRandLen ArrayKind = iota443 ArrayRangeLen444)445type ArrayType struct {446 TypeCommon447 Elem Type448 Kind ArrayKind449 RangeBegin uint64450 RangeEnd uint64451}452func (t *ArrayType) String() string {453 return fmt.Sprintf("array[%v]", t.Elem.String())454}455func (t *ArrayType) DefaultArg(dir Dir) Arg {456 var elems []Arg457 if t.Kind == ArrayRangeLen && t.RangeBegin == t.RangeEnd {458 for i := uint64(0); i < t.RangeBegin; i++ {459 elems = append(elems, t.Elem.DefaultArg(dir))460 }461 }462 return MakeGroupArg(t, dir, elems)463}464func (t *ArrayType) isDefaultArg(arg Arg) bool {465 a := arg.(*GroupArg)466 if !a.fixedInnerSize() && len(a.Inner) != 0 {467 return false468 }469 for _, elem := range a.Inner {470 if !isDefault(elem) {471 return false472 }473 }474 return true475}476type PtrType struct {477 TypeCommon478 Elem Type479 ElemDir Dir480}481func (t *PtrType) String() string {482 return fmt.Sprintf("ptr[%v, %v]", t.ElemDir, t.Elem.String())483}484func (t *PtrType) DefaultArg(dir Dir) Arg {485 if t.Optional() {486 return MakeSpecialPointerArg(t, dir, 0)487 }488 return MakePointerArg(t, dir, 0, t.Elem.DefaultArg(t.ElemDir))489}490func (t *PtrType) isDefaultArg(arg Arg) bool {491 a := arg.(*PointerArg)492 if t.Optional() {493 return a.IsSpecial() && a.Address == 0494 }495 return a.Address == 0 && a.Res != nil && isDefault(a.Res)496}497type StructType struct {498 TypeCommon499 Fields []Field500 AlignAttr uint64501}502func (t *StructType) String() string {503 return t.Name()504}505func (t *StructType) DefaultArg(dir Dir) Arg {506 inner := make([]Arg, len(t.Fields))507 for i, field := range t.Fields {508 inner[i] = field.DefaultArg(dir)509 }510 return MakeGroupArg(t, dir, inner)511}512func (t *StructType) isDefaultArg(arg Arg) bool {513 a := arg.(*GroupArg)514 for _, elem := range a.Inner {515 if !isDefault(elem) {516 return false517 }518 }519 return true520}521type UnionType struct {522 TypeCommon523 Fields []Field524}525func (t *UnionType) String() string {526 return t.Name()527}528func (t *UnionType) DefaultArg(dir Dir) Arg {529 return MakeUnionArg(t, dir, t.Fields[0].DefaultArg(dir), 0)530}531func (t *UnionType) isDefaultArg(arg Arg) bool {532 a := arg.(*UnionArg)533 return a.Index == 0 && isDefault(a.Option)534}535type ConstValue struct {536 Name string537 Value uint64538}539type TypeCtx struct {540 Meta *Syscall541 Dir Dir542 Ptr *Type543}544func ForeachType(syscalls []*Syscall, f func(t Type, ctx TypeCtx)) {545 for _, meta := range syscalls {...

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isDefaultArg

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1import (2func main() {3 fmt.Println(os.Args[0])4 fmt.Println(os.Args[1])5 fmt.Println(os.Args[2])6}7import (8func main() {9 fmt.Println(os.Args[0])10 fmt.Println(os.Args[1])11 fmt.Println(os.Args[2])12}13import (14func main() {15 fmt.Println(os.Args[0])16 fmt.Println(os.Args[1])17 fmt.Println(os.Args[2])18}19import (20func main() {21 fmt.Println(os.Args[0])22 fmt.Println(os.Args[1])23 fmt.Println(os.Args[2])24}25import (26func main() {27 fmt.Println(os.Args[0])28 fmt.Println(os.Args[1])29 fmt.Println(os.Args[2])30}31import (32func main() {33 fmt.Println(os.Args[0])34 fmt.Println(os.Args[1])35 fmt.Println(os.Args[2])36}37import (38func main() {39 fmt.Println(os.Args[0])40 fmt.Println(os.Args[1])41 fmt.Println(os.Args[2])

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isDefaultArg

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1import (2func main() {3 flag.StringVar(&svar, "svar", "bar", "a string var")4 flag.Parse()5 fmt.Println("svar:", svar)6 fmt.Println("tail:", flag.Args())7 if flag.NArg() == 0 && flag.NFlag() == 0 {8 flag.Usage()9 os.Exit(2)10 }11}12import (13func main() {14 flag.StringVar(&svar, "svar", "bar", "a string var")15 flag.Parse()16 fmt.Println("svar:", svar)17 fmt.Println("tail:", flag.Args())18 if flag.NArg() == 0 && flag.NFlag() == 0 {19 flag.Usage()20 os.Exit(2)21 }22}23import (24func main() {25 flag.StringVar(&svar, "svar", "bar", "a string var")26 flag.Parse()27 fmt.Println("svar:", svar)28 fmt.Println("tail:", flag.Args())29 if flag.NArg() == 0 && flag.NFlag() == 0 {30 flag.Usage()31 os.Exit(2)32 }33}34import (35func main() {36 flag.StringVar(&svar, "svar", "bar", "a string var")37 flag.Parse()38 fmt.Println("svar:", svar)39 fmt.Println("tail:", flag.Args())40 if flag.NArg() == 0 && flag.NFlag() == 0 {41 flag.Usage()42 os.Exit(2)43 }44}45import (46func main() {47 flag.StringVar(&svar, "svar", "bar",

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isDefaultArg

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1import (2func main() {3 if len(os.Args) == 1 {4 fmt.Println("No argument is passed")5 } else {6 fmt.Println("Argument is passed")7 }8}

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isDefaultArg

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

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isDefaultArg

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1import (2var (3 prog = &Prog{progName}4type Prog struct {5}6func (p *Prog) isDefaultArg(argName string) bool {7 arg := flag.Lookup(argName)8 if arg == nil {9 }10 return arg.DefValue == arg.Value.String()11}12func main() {13 var (

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isDefaultArg

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1import (2func main() {3 name := flag.String("name", "default", "enter your name")4 flag.Parse()5 if flag.Arg(0) == "default" {6 fmt.Println("default argument")7 } else {8 fmt.Println(*name)9 }10}11Flag.Parsed()12func (f *FlagSet) Parsed() bool13import (14func main() {15 name := flag.String("name", "default", "enter your name")16 if !flag.Parsed() {17 fmt.Println("flag set has not been parsed")18 } else {19 fmt.Println(*name)20 }21}22Flag.PrintDefaults()

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isDefaultArg

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1import (2func main() {3 argInt, _ := strconv.Atoi(arg)4 argFloat, _ := strconv.ParseFloat(arg, 64)5 argBool, _ := strconv.ParseBool(arg)6 argString := strconv.Itoa(argInt)7 fmt.Println(argInt)8 fmt.Println(argFloat)9 fmt.Println(argBool)10 fmt.Println(argString)11}12import (13func main() {14 argInt, _ := strconv.Atoi(arg)15 argFloat, _ := strconv.ParseFloat(arg, 64)16 argBool, _ := strconv.ParseBool(arg)17 argString := strconv.Itoa(argInt)18 fmt.Println(argInt)19 fmt.Println(argFloat)20 fmt.Println(argBool)21 fmt.Println(argString)22}23import (24func main() {25 argInt, _ := strconv.Atoi(arg)26 argFloat, _ := strconv.ParseFloat(arg, 64)

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