How to use Run method of osutil Package

Best Syzkaller code snippet using osutil.Run

kernel.go

Source:kernel.go

...31	if err := osutil.Sandbox(cmd, true, true); err != nil {32		return err33	}34	cmd.Dir = dir35	if _, err := osutil.Run(10*time.Minute, cmd); err != nil {36		return err37	}38	// We build only bzImage as we currently don't use modules.39	cpu := strconv.Itoa(runtime.NumCPU())40	cmd = osutil.Command("make", "bzImage", "-j", cpu, "CC="+compiler)41	if err := osutil.Sandbox(cmd, true, true); err != nil {42		return err43	}44	cmd.Dir = dir45	// Build of a large kernel can take a while on a 1 CPU VM.46	_, err := osutil.Run(3*time.Hour, cmd)47	return err48}49func Clean(dir string) error {50	cmd := osutil.Command("make", "distclean")51	if err := osutil.Sandbox(cmd, true, true); err != nil {52		return err53	}54	cmd.Dir = dir55	_, err := osutil.Run(10*time.Minute, cmd)56	return err57}58// CreateImage creates a disk image that is suitable for syzkaller.59// Kernel is taken from kernelDir, userspace system is taken from userspaceDir.60// If cmdlineFile is not empty, contents of the file are appended to the kernel command line.61// If sysctlFile is not empty, contents of the file are appended to the image /etc/sysctl.conf.62// Produces image and root ssh key in the specified files.63func CreateImage(kernelDir, userspaceDir, cmdlineFile, sysctlFile, image, sshkey string) error {64	tempDir, err := ioutil.TempDir("", "syz-build")65	if err != nil {66		return err67	}68	defer os.RemoveAll(tempDir)69	scriptFile := filepath.Join(tempDir, "create.sh")70	if err := osutil.WriteExecFile(scriptFile, []byte(createImageScript)); err != nil {71		return fmt.Errorf("failed to write script file: %v", err)72	}73	bzImage := filepath.Join(kernelDir, filepath.FromSlash("arch/x86/boot/bzImage"))74	cmd := osutil.Command(scriptFile, userspaceDir, bzImage)75	cmd.Dir = tempDir76	cmd.Env = append([]string{}, os.Environ()...)77	cmd.Env = append(cmd.Env,78		"SYZ_CMDLINE_FILE="+osutil.Abs(cmdlineFile),79		"SYZ_SYSCTL_FILE="+osutil.Abs(sysctlFile),80	)81	if _, err = osutil.Run(time.Hour, cmd); err != nil {82		return fmt.Errorf("image build failed: %v", err)83	}84	if err := osutil.CopyFile(filepath.Join(tempDir, "disk.raw"), image); err != nil {85		return err86	}87	if err := osutil.CopyFile(filepath.Join(tempDir, "key"), sshkey); err != nil {88		return err89	}90	if err := os.Chmod(sshkey, 0600); err != nil {91		return err92	}93	return nil94}95func CompilerIdentity(compiler string) (string, error) {96	output, err := osutil.RunCmd(time.Minute, "", compiler, "--version")97	if err != nil {98		return "", err99	}100	if len(output) == 0 {101		return "", fmt.Errorf("no output from compiler --version")102	}103	return strings.Split(string(output), "\n")[0], nil104}...

main.go

Source:main.go

...18	rootCmd.AddCommand(&cobra.Command{19		Use:   "connect",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}...

osutil_test.go

Source:osutil_test.go

...23			expVal: false,24		},25	}26	for _, test := range tests {27		t.Run("", func(t *testing.T) {28			assert.Equal(t, test.expVal, IsFile(test.path))29		})30	}31}32func TestIsDir(t *testing.T) {33	tests := []struct {34		path   string35		expVal bool36	}{37		{38			path:   "osutil.go",39			expVal: false,40		}, {41			path:   "../osutil",42			expVal: true,43		}, {44			path:   "not_found",45			expVal: false,46		},47	}48	for _, test := range tests {49		t.Run("", func(t *testing.T) {50			assert.Equal(t, test.expVal, IsDir(test.path))51		})52	}53}54func TestIsExist(t *testing.T) {55	tests := []struct {56		path   string57		expVal bool58	}{59		{60			path:   "osutil.go",61			expVal: true,62		}, {63			path:   "../osutil",64			expVal: true,65		}, {66			path:   "not_found",67			expVal: false,68		},69	}70	for _, test := range tests {71		t.Run("", func(t *testing.T) {72			assert.Equal(t, test.expVal, IsExist(test.path))73		})74	}75}76func TestCurrentUsername(t *testing.T) {77	if oldUser, ok := os.LookupEnv("USER"); ok {78		defer func() { _ = os.Setenv("USER", oldUser) }()79	} else {80		defer func() { _ = os.Unsetenv("USER") }()81	}82	if err := os.Setenv("USER", "__TESTING::USERNAME"); err != nil {83		t.Skip("Could not set the USER environment variable:", err)84	}85	assert.Equal(t, "__TESTING::USERNAME", CurrentUsername())...

Run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-l")4	stdout, err := cmd.Output()5	if err != nil {6		fmt.Println(err.Error())7	}8	fmt.Println(string(stdout))9}10import (11func main() {12	cmd := exec.Command("ls", "-l")13	err := cmd.Run()14	if err != nil {15		fmt.Println(err.Error())16	}17	fmt.Println("Command executed successfully")18}19import (20func main() {21	cmd := exec.Command("ls", "-l")22	err := cmd.Start()23	if err != nil {24		fmt.Println(err.Error())25	}26	fmt.Println("Command executed successfully")27}

Run

Using AI Code Generation

1import (2func main() {3    user, err := user.Current()4    if err != nil {5        panic(err)6    }7    dir := filepath.Join(user.HomeDir, "test")8    if err := os.MkdirAll(dir, 0755); err != nil {9        panic(err)10    }11    if err := os.Chdir(dir); err != nil {12        panic(err)13    }14    cmd := exec.Command("ls", "-l")15    if err := cmd.Run(); err != nil {16        fmt.Println("Error: ", err)17        os.Exit(1)18    }19}20import (21func main() {22    user, err := user.Current()23    if err != nil {24        panic(err)25    }

Run

Using AI Code Generation

1import "os/exec"2import "fmt"3func main() {4    cmd := exec.Command("ls")5    out, err := cmd.Output()6    if err != nil {7        fmt.Println(err)8    }9    fmt.Println(string(out))10}

Run

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("ls", "-l")4    err := cmd.Run()5    if err != nil {6        fmt.Println(err)7    }8}

Run

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-l")4	cmd.Run()5	fmt.Println("Command executed successfully")6}7import (8func main() {9	cmd := exec.Command("ls", "-l")10	cmd.Run()11	fmt.Println("Command executed successfully")12}13import (14func main() {15	cmd := exec.Command("ls", "-l")16	cmd.Run()17	fmt.Println("Command executed successfully")18}19import (20func main() {21	cmd := exec.Command("ls", "-l")

Run

Using AI Code Generation

1import (2func main() {3    fmt.Println("Starting a new process...")4    cmd := exec.Command("ls", "-l")5    err := cmd.Run()6    if err != nil {7        fmt.Println("Error: ", err)8        os.Exit(1)9    }10    fmt.Println("Process finished with error: ", err)11    fmt.Println("Starting a new process...")12    cmd = exec.Command("ls", "-l")13    err = cmd.Run()14    if err != nil {15        fmt.Println("Error: ", err)16        os.Exit(1)17    }18    fmt.Println("Process finished with error: ", err)19    fmt.Println("Starting a new process...")20    cmd = exec.Command("ls", "-l")21    err = cmd.Run()22    if err != nil {23        fmt.Println("Error: ", err)24        os.Exit(1)25    }26    fmt.Println("Process finished with error: ", err)27    fmt.Println("Starting a new process...")28    cmd = exec.Command("ls", "-l")29    err = cmd.Run()30    if err != nil {31        fmt.Println("Error: ", err)32        os.Exit(1)33    }34    fmt.Println("Process finished with error: ", err)35    fmt.Println("Starting a new process...")36    cmd = exec.Command("ls", "-l")37    err = cmd.Run()38    if err != nil {39        fmt.Println("Error: ", err)40        os.Exit(1)41    }42    fmt.Println("Process finished with error: ", err)43}

Run

Using AI Code Generation

1import "os"2import "os/exec"3import "fmt"4func main() {5    p := osutil.NewProcess("notepad.exe", "C:\\Users\\Administrator\\Desktop\\test.txt")6    err := p.Run()7    if err != nil {8        fmt.Println("Error: ", err)9    }10}

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