How to use linuxSetupLoop method of build Package

Best Syzkaller code snippet using build.linuxSetupLoop

linux_linux.go

Source:linux_linux.go

...30	imageFile := filepath.Join(tempDir, "image")31	if err := osutil.CopyFile(params.UserspaceDir, imageFile); err != nil {32		return err33	}34	loop, loopFile, err := linuxSetupLoop(imageFile)35	if err != nil {36		return err37	}38	defer func() {39		unix.IoctlGetInt(loop, unix.LOOP_CLR_FD)40		unix.Close(loop)41	}()42	mountDir := filepath.Join(tempDir, "mnt")43	if err := osutil.MkdirAll(mountDir); err != nil {44		return err45	}46	if err := unix.Mount(loopFile+"p1", mountDir, "ext4", 0, ""); err != nil {47		return fmt.Errorf("mount(%vp1, %v) failed: %v", loopFile, mountDir, err)48	}49	defer unix.Unmount(mountDir, 0)50	if err := copyKernel(mountDir, kernelPath); err != nil {51		return err52	}53	if params.SysctlFile != "" {54		if err := osutil.CopyFile(params.SysctlFile, filepath.Join(mountDir, "etc", "sysctl.conf")); err != nil {55			return err56		}57	}58	if err := unix.Unmount(mountDir, 0); err != nil {59		return err60	}61	return osutil.CopyFile(imageFile, filepath.Join(params.OutputDir, "image"))62}63func copyKernel(mountDir, kernelPath string) error {64	// Try several common locations where the kernel can be.65	for _, targetPath := range []string{"boot/vmlinuz", "boot/bzImage", "vmlinuz", "bzImage"} {66		fullPath := filepath.Join(mountDir, filepath.FromSlash(targetPath))67		if !osutil.IsExist(fullPath) {68			continue69		}70		return osutil.CopyFile(kernelPath, fullPath)71	}72	return fmt.Errorf("did not find kernel in the template image")73}74func linuxSetupLoop(imageFile string) (int, string, error) {75	image, err := unix.Open(imageFile, unix.O_RDWR, 0)76	if err != nil {77		return 0, "", fmt.Errorf("failed to open %v: %v", imageFile, err)78	}79	defer unix.Close(image)80	loopControl, err := unix.Open("/dev/loop-control", unix.O_RDWR, 0)81	if err != nil {82		return 0, "", fmt.Errorf("failed to open /dev/loop-control: %v", err)83	}84	defer unix.Close(loopControl)85	loopIndex, err := unix.IoctlRetInt(loopControl, unix.LOOP_CTL_GET_FREE)86	if err != nil {87		return 0, "", fmt.Errorf("LOOP_CTL_GET_FREE failed: %v", err)88	}...

linuxSetupLoop

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello, playground")4}5import (6func main() {7	fmt.Println("Hello, playground")8}9import (10func main() {11	fmt.Println("Hello, playground")12}13import (14func main() {15	fmt.Println("Hello, playground")16}17import (18func main() {19	fmt.Println("Hello, playground")20}21import (22func main() {23	fmt.Println("Hello, playground")24}25import (26func main() {27	fmt.Println("Hello, playground")28}29import (30func main() {31	fmt.Println("Hello, playground")32}33import (34func main() {35	fmt.Println("Hello, playground")36}37import (38func main() {39	fmt.Println("Hello, playground")40}41import (42func main() {43	fmt.Println("Hello, playground")44}45import (46func main() {47	fmt.Println("Hello, playground")48}49import (50func main() {51	fmt.Println("Hello,

linuxSetupLoop

Using AI Code Generation

1import (2func main() {3	r, w, err := os.Pipe()4	if err != nil {5		panic(err)6	}7	cmd := exec.Command("/bin/bash", "-c", "cat /proc/self/fd/3")8	cmd.ExtraFiles = []*os.File{w}9	cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}10	if err := cmd.Start(); err != nil {11		panic(err)12	}13	if err := w.Close(); err != nil {14		panic(err)15	}16	f := os.NewFile(3, "")17	if err := r.Close(); err != nil {18		panic(err)19	}20	loop, err := os.OpenFile("/dev/loop0", os.O_RDWR, 0)21	if err != nil {22		panic(err)23	}24	n, err := f.Write([]byte(fmt.Sprintf("%d", loop.Fd())))25	if err != nil {26		panic(err)27	}28	if n != len([]byte(fmt.Sprintf("%d", loop.Fd()))) {29		panic("short write")30	}31	if err := cmd.Wait(); err != nil {32		panic(err)33	}34}

linuxSetupLoop

Using AI Code Generation

1import "fmt"2import "os/exec"3import "os"4func main() {5    var cmd = exec.Command("losetup", "-f")6    var out, _ = cmd.Output()7    var loop = string(out[:len(out)-1])8    fmt.Println("loop", loop)9    var build = Build{10    }11    build.linuxSetupLoop()12    fmt.Println("build", build)13}14import "fmt"15import "os/exec"16import "os"17func main() {18    var cmd = exec.Command("losetup", "-f")19    var out, _ = cmd.Output()20    var loop = string(out[:len(out)-1])21    fmt.Println("loop", loop)22    var build = Build{23    }24    build.linuxSetupLoop()25    fmt.Println("build", build)26}27import "fmt"28import "os/exec"29import "os"30func main() {31    var cmd = exec.Command("losetup", "-f")32    var out, _ = cmd.Output()33    var loop = string(out[:len(out)-1])34    fmt.Println("loop", loop)35    var build = Build{36    }37    build.linuxSetupLoop()38    fmt.Println("build", build)39}40import "fmt"41import "os/exec"42import "os"43func main() {44    var cmd = exec.Command("losetup", "-f")45    var out, _ = cmd.Output()46    var loop = string(out[:len(out)-1])47    fmt.Println("loop", loop)48    var build = Build{49    }50    build.linuxSetupLoop()51    fmt.Println("build", build)52}53import

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