How to use writeChecksums method of prog Package

Best Syzkaller code snippet using prog.writeChecksums

encodingexec.go

Source:encodingexec.go

...68	// Generate copyin instructions that fill in data into pointer arguments.69	w.writeCopyin(c)70	// Generate checksum calculation instructions starting from the last one,71	// since checksum values can depend on values of the latter ones72	w.writeChecksums()73	// Generate the call itself.74	w.write(uint64(c.Meta.ID))75	if c.Ret != nil && len(c.Ret.uses) != 0 {76		if _, ok := w.args[c.Ret]; ok {77			panic("argInfo is already created for return value")78		}79		w.args[c.Ret] = argInfo{Idx: w.copyoutSeq, Ret: true}80		w.write(w.copyoutSeq)81		w.copyoutSeq++82	} else {83		w.write(ExecNoCopyout)84	}85	w.write(uint64(len(c.Args)))86	for _, arg := range c.Args {87		w.writeArg(arg)88	}89	// Generate copyout instructions that persist interesting return values.90	w.writeCopyout(c)91}92type execContext struct {93	target     *Target94	buf        []byte95	eof        bool96	args       map[Arg]argInfo97	copyoutSeq uint6498	// Per-call state cached here to not pass it through all functions.99	csumMap  map[Arg]CsumInfo100	csumUses map[Arg]struct{}101}102type argInfo struct {103	Addr uint64 // physical addr104	Idx  uint64 // copyout instruction index105	Ret  bool106}107func (w *execContext) writeCopyin(c *Call) {108	ForeachArg(c, func(arg Arg, ctx *ArgCtx) {109		if ctx.Base == nil {110			return111		}112		addr := w.target.PhysicalAddr(ctx.Base) + ctx.Offset113		addr -= arg.Type().UnitOffset()114		if w.willBeUsed(arg) {115			w.args[arg] = argInfo{Addr: addr}116		}117		switch arg.(type) {118		case *GroupArg, *UnionArg:119			return120		}121		typ := arg.Type()122		if arg.Dir() == DirOut || IsPad(typ) || (arg.Size() == 0 && !typ.IsBitfield()) {123			return124		}125		w.write(execInstrCopyin)126		w.write(addr)127		w.writeArg(arg)128	})129}130func (w *execContext) willBeUsed(arg Arg) bool {131	if res, ok := arg.(*ResultArg); ok && len(res.uses) != 0 {132		return true133	}134	_, ok1 := w.csumMap[arg]135	_, ok2 := w.csumUses[arg]136	return ok1 || ok2137}138func (w *execContext) writeChecksums() {139	if len(w.csumMap) == 0 {140		return141	}142	csumArgs := make([]Arg, 0, len(w.csumMap))143	for arg := range w.csumMap {144		csumArgs = append(csumArgs, arg)145	}146	sort.Slice(csumArgs, func(i, j int) bool {147		return w.args[csumArgs[i]].Addr < w.args[csumArgs[j]].Addr148	})149	for i := len(csumArgs) - 1; i >= 0; i-- {150		arg := csumArgs[i]151		info := w.csumMap[arg]152		if _, ok := arg.Type().(*CsumType); !ok {...

writeChecksums

Using AI Code Generation

1import (2func main() {3    f, err := os.Create("test.txt")4    if err != nil {5        fmt.Println(err)6    }7    l, err := f.WriteString("Hello World")8    if err != nil {9        fmt.Println(err)10        f.Close()11    }12    fmt.Println(l, "bytes written successfully")13    err = f.Close()14    if err != nil {15        fmt.Println(err)16    }17    f, err = os.OpenFile("test.txt", os.O_RDWR, 0644)18    if err != nil {19        fmt.Println(err)20    }21    h := md5.New()22    if _, err := io.Copy(h, f); err != nil {23        fmt.Println(err)24        f.Close()25    }26    checksum := h.Sum(nil)27    fmt.Println("Checksum calculated:", checksum)28    _, err = f.Seek(0, 0)29    if err != nil {30        fmt.Println(err)31        f.Close()32    }33    _, err = f.Write(checksum)34    if err != nil {35        fmt.Println(err)36        f.Close()37    }38    fmt.Println("Checksum written to file")39    err = f.Close()40    if err != nil {41        fmt.Println(err)42    }43}

writeChecksums

Using AI Code Generation

1import "fmt"2func main() {3    prog := new(Program)4    prog.writeChecksums()5}6import "fmt"7func main() {8    prog := new(Program)9    prog.readChecksums()10}11import "fmt"12func main() {13    prog := new(Program)14    prog.writeChecksums()15}16import "fmt"17func main() {18    prog := new(Program)19    prog.readChecksums()20}21import "fmt"22func main() {23    prog := new(Program)24    prog.writeChecksums()25}26import "fmt"27func main() {28    prog := new(Program)29    prog.readChecksums()30}31import "fmt"32func main() {33    prog := new(Program)34    prog.writeChecksums()35}36import "fmt"37func main() {38    prog := new(Program)39    prog.readChecksums()40}41import "fmt"42func main() {43    prog := new(Program)44    prog.writeChecksums()45}46import "fmt"47func main() {48    prog := new(Program)49    prog.readChecksums()50}51import "fmt"52func main() {53    prog := new(Program)54    prog.writeChecksums()55}56import "fmt"57func main() {58    prog := new(Program)59    prog.readChecksums()60}

writeChecksums

Using AI Code Generation

1import "fmt"2func main() {3   p := new(prog)4   p.writeChecksums()5}6import "fmt"7func main() {8   p := new(prog)9   p.writeChecksums()10}

writeChecksums

Using AI Code Generation

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

writeChecksums

Using AI Code Generation

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

writeChecksums

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Print("Enter a string: ")4    fmt.Scan(&str)5    fmt.Println("The checksums are: ")6    prog.WriteChecksums(str)7}8import "fmt"9func WriteChecksums(str string) {10    for i := 0; i < len(str); i++ {11        for j := 0; j <= i; j++ {12            sum += int(str[j])13        }14        fmt.Printf("%d ", sum)15    }16}

writeChecksums

Using AI Code Generation

1import (2func main() {3	f, err := os.Create("checksum.txt")4	if err != nil {5		fmt.Println("Error: ", err)6		os.Exit(1)7	}8	defer f.Close()9	w := bufio.NewWriter(f)10	_, err = w.Write([]byte("Checksums: "))11	if err != nil {12		fmt.Println("Error: ", err)13		os.Exit(1)14	}15	f2, err := os.Open("checksum.txt")16	if err != nil {17		fmt.Println("Error: ", err)18		os.Exit(1)19	}20	defer f2.Close()21	r := bufio.NewReader(f2)22	buf := make([]byte, 100)23	_, err = r.Read(buf)24	if err != nil {25		if err != io.EOF {26			fmt.Println("Error: ", err)27			os.Exit(1)28		}29	}

writeChecksums

Using AI Code Generation

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

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.