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How to use checkOpts method of repro Package

Best Syzkaller code snippet using repro.checkOpts

repro.go

Source:repro.go

...386	}()387	// Do further simplifications.388	for _, simplify := range progSimplifies {389		opts := res.Opts390		if !simplify(&opts) || !checkOpts(&opts, ctx.timeouts, res.Duration) {391			continue392		}393		crashed, err := ctx.testProg(res.Prog, res.Duration, opts)394		if err != nil {395			return nil, err396		}397		if !crashed {398			continue399		}400		res.Opts = opts401		// Simplification successful, try extracting C repro.402		res, err = ctx.extractC(res)403		if err != nil {404			return nil, err405		}406		if res.CRepro {407			return res, nil408		}409	}410	return res, nil411}412// Try triggering crash with a C reproducer.413func (ctx *context) extractC(res *Result) (*Result, error) {414	ctx.reproLogf(2, "extracting C reproducer")415	start := time.Now()416	defer func() {417		ctx.stats.ExtractCTime = time.Since(start)418	}()419	crashed, err := ctx.testCProg(res.Prog, res.Duration, res.Opts)420	if err != nil {421		return nil, err422	}423	res.CRepro = crashed424	return res, nil425}426// Try to simplify the C reproducer.427func (ctx *context) simplifyC(res *Result) (*Result, error) {428	ctx.reproLogf(2, "simplifying C reproducer")429	start := time.Now()430	defer func() {431		ctx.stats.SimplifyCTime = time.Since(start)432	}()433	for _, simplify := range cSimplifies {434		opts := res.Opts435		if !simplify(&opts) || !checkOpts(&opts, ctx.timeouts, res.Duration) {436			continue437		}438		crashed, err := ctx.testCProg(res.Prog, res.Duration, opts)439		if err != nil {440			return nil, err441		}442		if !crashed {443			continue444		}445		res.Opts = opts446	}447	return res, nil448}449func checkOpts(opts *csource.Options, timeouts targets.Timeouts, timeout time.Duration) bool {450	if !opts.Repeat && timeout >= time.Minute {451		// If we have a non-repeating C reproducer with timeout > vm.NoOutputTimeout and it hangs452		// (the reproducer itself does not terminate on its own, note: it does not have builtin timeout),453		// then we will falsely detect "not output from test machine" kernel bug.454		// We could fix it by adding a builtin timeout to such reproducers (like we have in all other cases).455		// However, then it will exit within few seconds and we will finish the test without actually waiting456		// for full vm.NoOutputTimeout, which breaks the whole reason of using vm.NoOutputTimeout in the first457		// place. So we would need something more elaborate: let the program exist after few seconds, but458		// continue waiting for kernel hang errors for minutes, but at the same time somehow ignore "no output"459		// error because it will be false in this case.460		// Instead we simply prohibit !Repeat with long timeouts.461		// It makes sense on its own to some degree: if we are chasing an elusive bug, repeating the test462		// will increase chances of reproducing it and can make the reproducer less flaky.463		// Syz repros does not have this problem because they always have internal timeout, however...

checkOpts

Using AI Code Generation

1import (2type Repro struct {3}4func (r *Repro) checkOpts(opts ...interface{}) {5    for _, o := range opts {6        switch o.(type) {7            fmt.Println("int")8            fmt.Println("string")9            fmt.Println("float64")10            fmt.Println("unknown")11        }12    }13}14func main() {15    r := Repro{16    }17    r.checkOpts(1, 2, 3)18    r.checkOpts(1, "2", 3.0)19    r.checkOpts(1, "2", 3.0, 4)20    r.checkOpts(1, "2", 3.0, "4")21}

checkOpts

Using AI Code Generation

1import (2func main() {3    flag.Var(&opts, "opts", "opts to use")4    flag.Parse()5    fmt.Println(opts.checkOpts())6}7import (8func main() {9    flag.Var(&opts, "opts", "opts to use")10    flag.Parse()11    fmt.Println(opts.checkOpts())12}13import (14func main() {15    flag.Var(&opts, "opts", "opts to use")16    flag.Parse()17    fmt.Println(opts.checkOpts())18}19import (20func main() {21    flag.Var(&opts, "opts", "opts to use")22    flag.Parse()23    fmt.Println(opts.checkOpts())24}25import (26func main() {27    flag.Var(&opts, "opts", "opts to use")28    flag.Parse()29    fmt.Println(opts.checkOpts())30}31import (32func main() {33    flag.Var(&opts, "opts", "opts to use")34    flag.Parse()35    fmt.Println(opts.checkOpts())36}37import (38func main() {39    flag.Var(&opts, "opts", "opts to use")40    flag.Parse()41    fmt.Println(opts.checkOpts())42}43import (44func main() {45    flag.Var(&opts,

checkOpts

Using AI Code Generation

1import (2func main() {3    r := NewRepro()4    if err := r.checkOpts(); err != nil {5        log.Fatalf("error: %v", err)6    }7}8import (9func main() {10    r := NewRepro()11    if err := r.checkOpts(); err != nil {12        log.Fatalf("error: %v", err)13    }14}15import (16func main() {17    r := NewRepro()18    if err := r.checkOpts(); err != nil {19        log.Fatalf("error: %v", err)20    }21}22import (23func main() {24    r := NewRepro()25    if err := r.checkOpts(); err != nil {26        log.Fatalf("error: %v", err)27    }28}29import (30func main() {31    r := NewRepro()32    if err := r.checkOpts(); err != nil {33        log.Fatalf("error: %v", err)34    }35}36import (37func main() {

checkOpts

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World!")4	repro.CheckOpts()5}6import (7type Options struct {8}9func CheckOpts() {10	_, err := flags.Parse(&opts)11	if err != nil {12		fmt.Println("Error parsing options")13	}14	fmt.Println(opts.Verbose)15}

checkOpts

Using AI Code Generation

1import (2func main() {3    fmt.Println("testing")4    opts := make(map[string]string)5    r := repro.Repro{}6    r.CheckOpts(opts)7}8import (9type Repro struct {10}11func (r Repro) CheckOpts(opts map[string]string) {12    for k, v := range opts {13        fmt.Println(k, v)14    }15}16./2.go:15: cannot use r (type Repro) as type repro.Repro in assignment:17Repro does not implement repro.Repro (missing CheckOpts method)18func isURL(url string) bool {19    _, err := url.ParseRequestURI(url)20    if err != nil {21    }22    u, err := url.Parse(url)23    if err != nil || u.Scheme == "" || u.Host == "" {24    }25}26./main.go:17: url.ParseRequestURI undefined (type string has no field or method ParseRequestURI)27func isURL(url string) bool {28    _, err := url.ParseRequestURI(url)29    if err != nil {

checkOpts

Using AI Code Generation

1import (2func main() {3	repro := new(Repro)4	repro.checkOpts(map[string]interface{}{"opt": true})5}6import (7type Repro struct {8}9func (r *Repro) checkOpts(opts map[string]interface{}) {10	fmt.Println(opts["opt"])11}12I have tried this in Go Playground and I get the same results. That's because the Playground uses Go 1.14.2, which is newer than the version you're using (1.13.8). I have tried this in Go Playground and I get the same results. That's because the Playground uses Go 1.14.2, which is newer than the version you're using (1.13.8). I have tried this in Go Playground and I get the same results. That's because the Playground uses Go 1.14.2, which is newer than the version

checkOpts

Using AI Code Generation

1import (2type Repro struct {3}4func (r *Repro) checkOpts() {5	fmt.Printf("%# v", pretty.Formatter(r.Opts))6}7func main() {8	r := Repro{9		Opts: map[string]string{10		},11	}12	r.checkOpts()13}14import (15type Repro struct {16}17func (r Repro) checkOpts() {18	fmt.Printf("%# v", pretty.Formatter(r.Opts))19}20func main() {21	r := Repro{22		Opts: map[string]string{23		},24	}25	r.checkOpts()26}

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