[code=golang]
import (
    "os"
    "syscall"
)

// chroot changes the root directory of the current process to a new directory
func chroot(root string) error {
    // Change the root directory using syscall.Chroot
    err := syscall.Chroot(root)
    if err != nil {
        return err
    }

    // Change the working directory to "/"
    err = os.Chdir("/")
    if err != nil {
        return err
    }

    // Return nil if successful
    return nil
}
[/code]