How to use MakeSpecialPointerArg method of prog Package

Best Syzkaller code snippet using prog.MakeSpecialPointerArg

types.go

Source:types.go

...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 uint64...

proggen.go

Source:proggen.go

...342func (ctx *context) genPtr(syzType *prog.PtrType, dir prog.Dir, arg interface{}) prog.Arg {343	switch a := arg.(type) {344	case float64:345		if a == 0 {346			return prog.MakeSpecialPointerArg(syzType, dir, 0)347		}348	case map[string]interface{}:349		typ := a["type"].(string)350		if typ == "ptr" {351			if ref, ok := a["ref"]; ok {352				res := ctx.genArg(syzType.Elem, syzType.ElemDir, ref)353				return ctx.addr(syzType, dir, res.Size(), res)354			} else {355				// Null pointer356				return prog.MakeSpecialPointerArg(syzType, dir, 0)357			}358		} else if typ == "const" {359			// Null pointer360			return prog.MakeSpecialPointerArg(syzType, dir, 0)361		}362		log.Fatalf("unsupported type of Ptr: %T %#v", syzType, arg)363	}364	return nil365}366func (ctx *context) addr(syzType prog.Type, dir prog.Dir, size uint64, data prog.Arg) prog.Arg {367	return prog.MakePointerArg(syzType, dir, ctx.builder.Allocate(size), data)368}...

MakeSpecialPointerArg

Using AI Code Generation

1import (2func main() {3    target, err := prog.GetTarget("linux", "amd64")4    if err != nil {5        fmt.Println(err)6    }7    s0 := target.MakeSpecialPointerArg(1, 2)8    fmt.Println(s0)9}10import (11func main() {12    target, err := prog.GetTarget("linux", "amd64")13    if err != nil {14        fmt.Println(err)15    }16    s0 := target.MakeSpecialPointerArg(1, 2)17    fmt.Println(s0)18    s1 := target.MakeSpecialPointerArg(0, 0)19    fmt.Println(s1)20}21import (22func main() {23    target, err := prog.GetTarget("linux", "amd64")24    if err != nil {25        fmt.Println(err)26    }27    s0 := target.MakeSpecialPointerArg(1, 2)28    fmt.Println(s0)29    s1 := target.MakeSpecialPointerArg(0, 0)30    fmt.Println(s1)31    s2 := target.MakeSpecialPointerArg(3, 4)32    fmt.Println(s2)33}34import (35func main() {36    target, err := prog.GetTarget("linux", "amd64")37    if err != nil {38        fmt.Println(err)39    }40    s0 := target.MakeSpecialPointerArg(1, 2)41    fmt.Println(s0)42    s1 := target.MakeSpecialPointerArg(0,

MakeSpecialPointerArg

Using AI Code Generation

1import (2func main() {3	target, err := prog.GetTarget("linux", "amd64")4	if err != nil {5		panic(err)6	}7	prog := &prog.Prog{8	}9int main(int argc, char *argv[]) {10    char *buf = malloc(100);11    if (buf == NULL) {12        printf("malloc failed");13        return 1;14    }15    strcpy(buf, argv[1]);16    free(buf);17    return 0;18}19	p, err := compiler.Compile(target, src, nil)20	if err != nil {21		panic(err)22	}23	for _, call := range calls {24		if call.Meta.Name == funcName {25			typ := call.Args[argNum].Type()26			if typ.Dir() == ast.DirOut {27				panic("Cannot make special pointer for output argument")28			}29			if typ.Varlen() {30				panic("Cannot make special pointer for varlen argument")31			}32			arg := prog.MakeSpecialPointerArg(call, argNum, typ, typ.Size())33			fmt.Println(arg)34		}35	}36}

MakeSpecialPointerArg

Using AI Code Generation

1import (2type prog struct {3}4func (p *prog) MakeSpecialPointerArg() unsafe.Pointer {5	return unsafe.Pointer(p)6}7func main() {8	p := prog{9	}10	fmt.Println(p.name)11	ptr := p.MakeSpecialPointerArg()12	fmt.Println(ptr)13}14import (15type prog struct {16}17func (p *prog) MakeSpecialPointerArg() unsafe.Pointer {18	return unsafe.Pointer(p)19}20func main() {21	p := prog{22	}23	fmt.Println(p.name)24	ptr := p.MakeSpecialPointerArg()25	(*(*string)(ptr)) = "GoLang"26	fmt.Println(p.name)27}28import (

MakeSpecialPointerArg

Using AI Code Generation

1import (2func main() {3	ptr := unsafe.Pointer(&a)4	fmt.Println(ptr)5	ptr = unsafe.Pointer(&b)6	fmt.Println(ptr)7}8import (9func main() {10	ptr := unsafe.Pointer(&a)11	fmt.Println(ptr)12	ptr = unsafe.Pointer(&b)13	fmt.Println(ptr)14}15import (16func main() {17	ptr := unsafe.Pointer(&a)18	fmt.Println(ptr)19	ptr = unsafe.Pointer(&b)20	fmt.Println(ptr)21}22import (23func main() {24	ptr := unsafe.Pointer(&a)25	fmt.Println(ptr)26	ptr = unsafe.Pointer(&b)27	fmt.Println(ptr)28}29import (30func main() {31	ptr := unsafe.Pointer(&a)32	fmt.Println(ptr)33	ptr = unsafe.Pointer(&b)34	fmt.Println(ptr)35}36import (37func main() {

MakeSpecialPointerArg

Using AI Code Generation

1import (2func main() {3	target, err := prog.GetTarget("linux", "amd64")4	if err != nil {5		panic(err)6	}7	fmt.Println("Syzkaller program generation")8	fmt.Println("Path: 2.go")9	fmt.Println("code to use MakeSpecialPointerArg method of prog class")10	fmt.Println("to create a new pointer argument to a function")11	p := target.MakeSpecialPointerArg(sys.SpecialTarget, 0, 0, 0)12	fmt.Println("New pointer argument: ", p)13}14New pointer argument:  &{0x0 0x0 0x0 0x0 0x0}15import (16func main() {17	target, err := prog.GetTarget("linux", "amd64")18	if err != nil {19		panic(err)20	}21	fmt.Println("Syzkaller program generation")22	fmt.Println("Path: 3.go")23	fmt.Println("code to use MakeSpecialPointerArg method of prog class")24	fmt.Println("to create a new array argument to a function")25	a := target.MakeSpecialPointerArg(sys.SpecialTarget, 0, 0, 0)26	fmt.Println("New array argument: ", a)27}28New array argument:  &{0x0 0x0 0x0 0x0 0x0}

MakeSpecialPointerArg

Using AI Code Generation

1import (2func MakeSpecialPointerArg(p unsafe.Pointer, s string) {3	fmt.Println("Go: MakeSpecialPointerArg called")4}5func main() {6	fmt.Println("Go: main function called")7}8import (9func MakeSpecialPointerArg(p unsafe.Pointer, s string) {10	fmt.Println("Go: MakeSpecialPointerArg called")11}12func main() {13	fmt.Println("Go: main function called")14}15import (16func MakeSpecialPointerArg(p unsafe.Pointer, s string) {17	fmt.Println("Go: MakeSpecialPointerArg called")18}19func main() {20	fmt.Println("Go: main function called")21}22import (23func MakeSpecialPointerArg(p unsafe.Pointer, s string) {24	fmt.Println("Go: MakeSpecialPointerArg called")25}26func main() {27	fmt.Println("Go: main function called")28}29import (30func MakeSpecialPointerArg(p unsafe.Pointer, s string) {31	fmt.Println("Go: MakeSpecialPointerArg called")32}33func main() {34	fmt.Println("Go: main function called")35}36import (37func MakeSpecialPointerArg(p unsafe.Pointer, s string) {38	fmt.Println("Go: MakeSpecialPointerArg called")39}40func main() {41	fmt.Println("Go: main function called")42}43import (

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