KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use writeCopyin method of prog Package

Best Syzkaller code snippet using prog.writeCopyin

encodingexec.go

...65}66func (w *execContext) serializeCall(c *Call) {67	// Calculate arg offsets within structs.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()...

writeCopyin

Using AI Code Generation

1import (2func main() {3	target, err := prog.GetTarget(sys.GuessOS(), "amd64")4	if err != nil {5		log.Fatal(err)6	}7	data, err := ioutil.ReadFile("corpus")8	if err != nil {9		log.Fatal(err)10	}11	p := target.Deserialize(data)12	fmt.Printf("%s\n", p.Serialize())13	fmt.Println("Done")14}

writeCopyin

Using AI Code Generation

1import (2func main() {3	prog := syscall.Prog{}4	instr := syscall.Instruction{}5	reg := syscall.Register{}6	instr.Registers = append(instr.Registers, reg)7	prog.Instructions = append(prog.Instructions, instr)8	err := prog.WriteCopyin(os.Stdout)9	if err != nil {10		fmt.Println(err)11	}12}

writeCopyin

Using AI Code Generation

1import (2func main() {3	if len(os.Args) != 3 {4		fmt.Printf("Usage: %s <input file> <output file>\n", os.Args[0])5		os.Exit(1)6	}7	s, err = ioutil.ReadFile(os.Args[1])8	if err != nil {9		fmt.Printf("Error reading file: %s\n", err)10		os.Exit(1)11	}12	err = ioutil.WriteFile(os.Args[2], []byte(s), 0644)13	if err != nil {14		fmt.Printf("Error writing file: %s\n", err)15		os.Exit(1)16	}17	err = MiscLib.WriteCopyout(os.Args[2], s)18	if err != nil {19		fmt.Printf("Error writing file: %s\n", err)20		os.Exit(1)21	}22	err = MiscLib.WriteCopyout(os.Args[2], s)23	if err != nil {24		fmt.Printf("Error writing file: %s\n", err)25		os.Exit(1)26	}27	err = MiscLib.WriteCopyout(os.Args[2], s)28	if err != nil {29		fmt.Printf("Error writing file: %s\n", err)30		os.Exit(1)31	}32	err = MiscLib.WriteCopyout(os.Args[2], s)33	if err != nil {34		fmt.Printf("Error writing file: %s\n", err)35		os.Exit(1)36	}

Blogs

Check out the latest blogs from LambdaTest on this topic:

How To Write End-To-End Tests Using Cypress App Actions

When I started writing tests with Cypress, I was always going to use the user interface to interact and change the application’s state when running tests.

The Art of Testing the Untestable

It’s strange to hear someone declare, “This can’t be tested.” In reply, I contend that everything can be tested. However, one must be pleased with the outcome of testing, which might include failure, financial loss, or personal injury. Could anything be tested when a claim is made with this understanding?

What Agile Testing (Actually) Is

So, now that the first installment of this two fold article has been published (hence you might have an idea of what Agile Testing is not in my opinion), I’ve started feeling the pressure to explain what Agile Testing actually means to me.

Complete Guide To Styling Forms With CSS Accent Color

The web paradigm has changed considerably over the last few years. Web 2.0, a term coined way back in 1999, was one of the pivotal moments in the history of the Internet. UGC (User Generated Content), ease of use, and interoperability for the end-users were the key pillars of Web 2.0. Consumers who were only consuming content up till now started creating different forms of content (e.g., text, audio, video, etc.).

Acquiring Employee Support for Change Management Implementation

Enterprise resource planning (ERP) is a form of business process management software—typically a suite of integrated applications—that assists a company in managing its operations, interpreting data, and automating various back-office processes. The introduction of a new ERP system is analogous to the introduction of a new product into the market. If the product is not handled appropriately, it will fail, resulting in significant losses for the business. Most significantly, the employees’ time, effort, and morale would suffer as a result of the procedure.

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.