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Syzkaller
host
extractStringConst

How to use extractStringConst method of host Package

Best Syzkaller code snippet using host.extractStringConst

host.go

Source:host.go

...61			// This is for syz_open_dev$char/block.62			// They are currently commented out, but in case one enables them.63			return true64		}65		fname, ok := extractStringConst(c.Args[0])66		if !ok {67			panic("first open arg is not a pointer to string const")68		}69		if syscall.Getuid() != 0 {70			return false71		}72		var check func(dev string) bool73		check = func(dev string) bool {74			if !strings.Contains(dev, "#") {75				_, err := os.Stat(dev)76				return err == nil77			}78			for i := 0; i < 10; i++ {79				if check(strings.Replace(dev, "#", strconv.Itoa(i), 1)) {80					return true81				}82			}83			return false84		}85		return check(fname)86	case "syz_open_pts":87		return true88	case "syz_fuse_mount":89		_, err := os.Stat("/dev/fuse")90		return err == nil91	case "syz_fuseblk_mount":92		_, err := os.Stat("/dev/fuse")93		return err == nil && syscall.Getuid() == 094	case "syz_emit_ethernet":95		fd, err := syscall.Open("/dev/net/tun", syscall.O_RDWR, 0)96		if err == nil {97			syscall.Close(fd)98		}99		return err == nil && syscall.Getuid() == 0100	case "syz_kvm_setup_cpu":101		switch c.Name {102		case "syz_kvm_setup_cpu$x86":103			return runtime.GOARCH == "amd64" || runtime.GOARCH == "386"104		case "syz_kvm_setup_cpu$arm64":105			return runtime.GOARCH == "arm64"106		}107	}108	panic("unknown syzkall: " + c.Name)109}110func isSupportedSocket(c *sys.Call) bool {111	af, ok := c.Args[0].(*sys.ConstType)112	if !ok {113		println(c.Name)114		panic("socket family is not const")115	}116	fd, err := syscall.Socket(int(af.Val), 0, 0)117	if fd != -1 {118		syscall.Close(fd)119	}120	return err != syscall.ENOSYS && err != syscall.EAFNOSUPPORT121}122func isSupportedOpen(c *sys.Call) bool {123	fname, ok := extractStringConst(c.Args[0])124	if !ok {125		return true126	}127	fd, err := syscall.Open(fname, syscall.O_RDONLY, 0)128	if fd != -1 {129		syscall.Close(fd)130	}131	return err == nil132}133func isSupportedOpenAt(c *sys.Call) bool {134	fname, ok := extractStringConst(c.Args[1])135	if !ok {136		return true137	}138	fd, err := syscall.Open(fname, syscall.O_RDONLY, 0)139	if fd != -1 {140		syscall.Close(fd)141	}142	return err == nil143}144func extractStringConst(typ sys.Type) (string, bool) {145	ptr, ok := typ.(*sys.PtrType)146	if !ok {147		panic("first open arg is not a pointer to string const")148	}149	str, ok := ptr.Type.(*sys.BufferType)150	if !ok || str.Kind != sys.BufferString || len(str.Values) != 1 {151		return "", false152	}153	v := str.Values[0]154	v = v[:len(v)-1] // string terminating \x00155	return v, true156}...

host_linux.go

Source:host_linux.go

...58			// This is for syz_open_dev$char/block.59			// They are currently commented out, but in case one enables them.60			return true61		}62		fname, ok := extractStringConst(c.Args[0])63		if !ok {64			panic("first open arg is not a pointer to string const")65		}66		if syscall.Getuid() != 0 {67			return false68		}69		var check func(dev string) bool70		check = func(dev string) bool {71			if !strings.Contains(dev, "#") {72				return osutil.IsExist(dev)73			}74			for i := 0; i < 10; i++ {75				if check(strings.Replace(dev, "#", strconv.Itoa(i), 1)) {76					return true77				}78			}79			return false80		}81		return check(fname)82	case "syz_open_pts":83		return true84	case "syz_fuse_mount":85		return osutil.IsExist("/dev/fuse")86	case "syz_fuseblk_mount":87		return osutil.IsExist("/dev/fuse") && syscall.Getuid() == 088	case "syz_emit_ethernet", "syz_extract_tcp_res":89		fd, err := syscall.Open("/dev/net/tun", syscall.O_RDWR, 0)90		if err == nil {91			syscall.Close(fd)92		}93		return err == nil && syscall.Getuid() == 094	case "syz_kvm_setup_cpu":95		switch c.Name {96		case "syz_kvm_setup_cpu$x86":97			return runtime.GOARCH == "amd64" || runtime.GOARCH == "386"98		case "syz_kvm_setup_cpu$arm64":99			return runtime.GOARCH == "arm64"100		}101	}102	panic("unknown syzkall: " + c.Name)103}104func isSupportedSocket(c *prog.Syscall) bool {105	af, ok := c.Args[0].(*prog.ConstType)106	if !ok {107		println(c.Name)108		panic("socket family is not const")109	}110	fd, err := syscall.Socket(int(af.Val), 0, 0)111	if fd != -1 {112		syscall.Close(fd)113	}114	return err != syscall.ENOSYS && err != syscall.EAFNOSUPPORT115}116func isSupportedOpen(c *prog.Syscall) bool {117	fname, ok := extractStringConst(c.Args[0])118	if !ok {119		return true120	}121	fd, err := syscall.Open(fname, syscall.O_RDONLY, 0)122	if fd != -1 {123		syscall.Close(fd)124	}125	return err == nil126}127func isSupportedOpenAt(c *prog.Syscall) bool {128	fname, ok := extractStringConst(c.Args[1])129	if !ok {130		return true131	}132	fd, err := syscall.Open(fname, syscall.O_RDONLY, 0)133	if fd != -1 {134		syscall.Close(fd)135	}136	return err == nil137}138func extractStringConst(typ prog.Type) (string, bool) {139	ptr, ok := typ.(*prog.PtrType)140	if !ok {141		panic("first open arg is not a pointer to string const")142	}143	str, ok := ptr.Type.(*prog.BufferType)144	if !ok || str.Kind != prog.BufferString || len(str.Values) != 1 {145		return "", false146	}147	v := str.Values[0]148	v = v[:len(v)-1] // string terminating \x00149	return v, true150}...

extractStringConst

Using AI Code Generation

1import (2type host struct {3}4func (h *host) extractStringConst() string {5	return strings.Split(h.name, ".")[0]6}7func main() {8	h := host{"test.com"}9	fmt.Println(h.extractStringConst())10}11import (12type host struct {13}14func (h *host) extractStringConst() string {15	return strings.Split(h.name, ".")[0]16}17func main() {18	h := host{"test.com"}19	fmt.Println(h.extractStringConst())20}21import (22type host struct {23}24func (h *host) extractStringConst() string {25	return strings.Split(h.name, ".")[0]26}27func main() {28	h := host{"test.com"}29	fmt.Println(h.extractStringConst())30}31import (32type host struct {33}34func (h *host) extractStringConst() string {35	return strings.Split(h.name, ".")[0]36}37func main() {38	h := host{"test.com"}39	fmt.Println(h.extractStringConst())40}41import (42type host struct {43}44func (h *host) extractStringConst() string {45	return strings.Split(h.name, ".")[0]46}47func main() {48	h := host{"test.com"}49	fmt.Println(h.extractStringConst())50}51import (52type host struct {53}54func (h *host) extractStringConst() string {55	return strings.Split(h.name, ".")[0]56}57func main() {58	h := host{"test.com"}59	fmt.Println(h.extractStringConst())60}61import (

extractStringConst

Using AI Code Generation

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

extractStringConst

Using AI Code Generation

1import java.io.*;2import java.util.*;3import java.util.regex.*;4{5    public static void main(String args[])throws IOException6    {7        String inFileName = "input.txt";8        String outFileName = "output.txt";9        File inFile = new File(inFileName);10        File outFile = new File(outFileName);11        if(!inFile.exists())12        {13            inFile.createNewFile();14        }15        if(!outFile.exists())16        {17            outFile.createNewFile();18        }19        FileWriter fstream = new FileWriter(outFileName);20        BufferedWriter out = new BufferedWriter(fstream);21        Scanner sc = new Scanner(inFile);22        while(sc.hasNextLine())23        {24            String str = sc.nextLine();25            String constStr = extractStringConst(str);26            if(!constStr.equals(""))27            {28                out.write(constStr);29                out.newLine();30            }31        }32        out.close();33    }34    public static String extractStringConst(String str)35    {36        String constStr = "";37        int i=0;38        while(i<str.length())39        {40            if(str.charAt(i)=='"')41            {42                i++;43                while(i<str.length() && str.charAt(i)!='"')44                {45                    constStr = constStr + str.charAt(i);46                    i++;47                }48                break;49            }50            {51                i++;52            }53        }54        return constStr;55    }56}57int a = 10;58String str = "Hello world";59float f = 10.5;60char ch = 'A';61double d = 10.5;62String str1 = "This is a string constant";

extractStringConst

Using AI Code Generation

1import java.io.*;2import java.util.*;3{4    public static void main(String args[])5    {6        String srcFileName = "C:\\Users\\Vishal\\Desktop\\2.go";7        String destFileName = "C:\\Users\\Vishal\\Desktop\\3.go";8        String stringConst = "";9        String stringConst1 = "";10        String stringConst2 = "";11        String stringConst3 = "";12        String stringConst4 = "";13        String stringConst5 = "";14        String stringConst6 = "";15        String stringConst7 = "";16        String stringConst8 = "";17        String stringConst9 = "";18        String stringConst10 = "";19        String stringConst11 = "";20        String stringConst12 = "";21        String stringConst13 = "";22        String stringConst14 = "";23        String stringConst15 = "";24        String stringConst16 = "";25        String stringConst17 = "";26        String stringConst18 = "";27        String stringConst19 = "";28        String stringConst20 = "";29        String stringConst21 = "";30        String stringConst22 = "";31        String stringConst23 = "";32        String stringConst24 = "";33        String stringConst25 = "";34        String stringConst26 = "";35        String stringConst27 = "";36        String stringConst28 = "";37        String stringConst29 = "";38        String stringConst30 = "";39        String stringConst31 = "";40        String stringConst32 = "";41        String stringConst33 = "";42        String stringConst34 = "";43        String stringConst35 = "";44        String stringConst36 = "";45        String stringConst37 = "";46        String stringConst38 = "";47        String stringConst39 = "";48        String stringConst40 = "";49        String stringConst41 = "";50        String stringConst42 = "";51        String stringConst43 = "";52        String stringConst44 = "";53        String stringConst45 = "";54        String stringConst46 = "";55        String stringConst47 = "";56        String stringConst48 = "";57        String stringConst49 = "";58        String stringConst50 = "";59        String stringConst51 = "";60        String stringConst52 = "";61        String stringConst53 = "";62        String stringConst54 = "";63        String stringConst55 = "";64        String stringConst56 = "";65        String stringConst57 = "";66        String stringConst58 = "";67        String stringConst59 = "";

extractStringConst

Using AI Code Generation

1import "fmt"2import "strings"3import "unicode/utf8"4func main() {5	fmt.Println("Enter the string literal")6	fmt.Scanln(&str)7	fmt.Println("The extracted string constant is")8	fmt.Println(extractStringConst(str))9}10func extractStringConst(str string) string {11	strConst = strings.Replace(str, "\"", "", -1)12}

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