How to use Error method of osutil Package

Best Syzkaller code snippet using osutil.Error

unixsocketutil.go

Source:unixsocketutil.go

...32	with func(net.Listener) error,33) error {34	exists, err := osutil.Exists(sockPath)35	if err != nil {36		return fmt.Errorf("ListenUnix: exists: %w", err)37	}38	// clean-up old socket39	if exists {40		if err := os.Remove(sockPath); err != nil {41			return fmt.Errorf("ListenUnix: cleanup previous: %w", err)42		}43	}44	listener, err := net.Listen("unix", sockPath)45	if err != nil {46		return fmt.Errorf("ListenUnix: %w", err)47	}48	defer func() { // socket file was created. cleanup, so hopefully the next user doesn't need os.Remove()49		_ = os.Remove(sockPath)50	}()51	listenerCtx, cancel := context.WithCancel(ctx) // explained in next block52	defer cancel()53	// stop listener when:54	//55	// a) parent ctx done56	// b) we're exiting due to Chmod() failing57	// c) with() exits due to listener not closed but Accept() failing (kinda grey area - can that happen?)58	//    ^ this signalled by defer cancel()59	go func() {60		<-listenerCtx.Done()61		listener.Close()62	}()63	if mode != nil {64		if err := os.Chmod(sockPath, *mode); err != nil {65			return fmt.Errorf("ListenUnix: %w", err)66		}67	}68	return with(listener)69}...

main.go

Source:main.go

...20		Short: "Connect to remote SSH server to make a persistent reverse tunnel",21		Args:  cobra.NoArgs,22		Run: func(cmd *cobra.Command, args []string) {23			logger := logex.StandardLogger()24			osutil.ExitIfError(connectToSshAndServeWithRetries(25				osutil.CancelOnInterruptOrTerminate(logger),26				logger))27		},28	})29	rootCmd.AddCommand(&cobra.Command{30		Use:   "write-systemd-file",31		Short: "Install unit file to start this on startup",32		Args:  cobra.NoArgs,33		Run: func(cmd *cobra.Command, args []string) {34			service := systemdinstaller.Service(35				"holepunch",36				"Reverse tunnel",37				systemdinstaller.Args("connect"),38				systemdinstaller.Docs(39					"https://github.com/function61/holepunch-client",40					"https://function61.com/"))41			osutil.ExitIfError(systemdinstaller.Install(service))42			fmt.Println(systemdinstaller.EnableAndStartCommandHints(service))43		},44	})45	rootCmd.AddCommand(&cobra.Command{46		Use:   "print-pubkey",47		Short: "Prints public key, in SSH authorized_keys format",48		Args:  cobra.NoArgs,49		Run: func(cmd *cobra.Command, args []string) {50			conf, err := readConfig()51			osutil.ExitIfError(err)52			key, err := signerFromPrivateKeyFile(conf.SshServer.PrivateKeyFilePath)53			osutil.ExitIfError(err)54			fmt.Println(string(ssh.MarshalAuthorizedKey(key.PublicKey())))55		},56	})57	rootCmd.AddCommand(&cobra.Command{58		Use:   "lint",59		Short: "Validates syntax of your config file",60		Args:  cobra.NoArgs,61		Run: func(cmd *cobra.Command, args []string) {62			_, err := readConfig()63			osutil.ExitIfError(err)64		},65	})66	osutil.ExitIfError(rootCmd.Execute())67}...

Error

Using AI Code Generation

1import (2func main() {3    file, err := os.Open("test.txt")4    if err != nil {5        fmt.Println(osutil.Error(err))6    }7    file.Close()8}

Error

Using AI Code Generation

1import (2func main() {3    user, err := user.Current()4    if err != nil {5        fmt.Println(err)6    }7    fmt.Println(home)8    err = os.MkdirAll(filepath.Join(home, "go", "src", "github.com", "example", "hello"), 0755)9    if err != nil {10        fmt.Println(err)11    }12    file, err := os.Create(filepath.Join(home, "go", "src", "github.com", "example", "hello", "hello.go"))13    if err != nil {14        fmt.Println(err)15    }16    file.WriteString("package main17    file.WriteString("import \"fmt\"18    file.WriteString("func main() {19    file.WriteString("fmt.Println(\"Hello, world!\")20    file.WriteString("}21    file.Close()22}23GoLang - osutil - MkdirAll() Method24func MkdirAll(path string, perm FileMode) error25import (26func main() {27    user, err := user.Current()28    if err != nil {29        fmt.Println(err)30    }

Error

Using AI Code Generation

1import (2func main() {3	usr, err := user.Current()4	if err != nil {5		fmt.Println(err)6	}7	dir, err := os.Getwd()8	if err != nil {9		fmt.Println(err)10	}11	path := filepath.Join(dir, "test.txt")12	err = os.Chown(path, int(usr.Uid), int(usr.Gid))13	if err != nil {14		fmt.Println(osutil.Error(err))15	}16}17import (18func main() {19	usr, err := user.Current()20	if err != nil {21		fmt.Println(err)22	}23	dir, err := os.Getwd()24	if err != nil {25		fmt.Println(err)26	}27	path := filepath.Join(dir, "test.txt")28	err = os.Chown(path, int(usr.Uid), int(usr.Gid))29	if err != nil {30		fmt.Println(osutil.Error(err))31	}32}33import (34func main() {35	usr, err := user.Current()36	if err != nil {37		fmt.Println(err)38	}39	dir, err := os.Getwd()40	if err != nil {41		fmt.Println(err)42	}43	path := filepath.Join(dir, "test.txt")44	err = os.Chown(path, int(usr.Uid), int(usr.Gid))

Error

Using AI Code Generation

1import (2func main() {3    user, err := user.Current()4    if err != nil {5        fmt.Println(osutil.Error(err))6    }7    fmt.Println("current user is", user.Username)8}

Error

Using AI Code Generation

1import (2func main() {3	err = osutil.Error("error", "message", "test", "test", "test", "test")4	fmt.Println(err)5}6import (7func main() {8    cmd := exec.Command("/bin/sh", "/home/user/go/src/test.sh")9    err := cmd.Run()10    if err != nil {11        fmt.Println(err)12    }13}14import (15func main() {16    env = append(env, "PATH=/usr/bin")17    env = append(env, "HOME=/home/user

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