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How to use LongPipe method of osutil Package

Best Syzkaller code snippet using osutil.LongPipe

bhyve.go

Source:bhyve.go

...149		"-s", fmt.Sprintf("3:0,virtio-blk,%v", inst.image),150		"-l", "com1,stdio",151		inst.vmName,152	}153	outr, outw, err := osutil.LongPipe()154	if err != nil {155		return err156	}157	inr, inw, err := osutil.LongPipe()158	if err != nil {159		outr.Close()160		outw.Close()161		return err162	}163	bhyve := osutil.Command("bhyve", bhyveArgs...)164	bhyve.Stdin = inr165	bhyve.Stdout = outw166	bhyve.Stderr = outw167	if err := bhyve.Start(); err != nil {168		outr.Close()169		outw.Close()170		inr.Close()171		inw.Close()172		return err173	}174	outw.Close()175	outw = nil176	inst.consolew = inw177	inr.Close()178	inst.bhyve = bhyve179	var tee io.Writer180	if inst.debug {181		tee = os.Stdout182	}183	inst.merger = vmimpl.NewOutputMerger(tee)184	inst.merger.Add("console", outr)185	outr = nil186	var bootOutput []byte187	bootOutputStop := make(chan bool)188	ipch := make(chan string, 1)189	go func() {190		gotip := false191		for {192			select {193			case out := <-inst.merger.Output:194				bootOutput = append(bootOutput, out...)195			case <-bootOutputStop:196				close(bootOutputStop)197				return198			}199			if gotip {200				continue201			}202			if ip := parseIP(bootOutput); ip != "" {203				ipch <- ip204				gotip = true205			}206		}207	}()208	select {209	case ip := <-ipch:210		inst.sshhost = ip211	case <-inst.merger.Err:212		bootOutputStop <- true213		<-bootOutputStop214		return vmimpl.BootError{Title: "bhyve exited", Output: bootOutput}215	case <-time.After(10 * time.Minute):216		bootOutputStop <- true217		<-bootOutputStop218		return vmimpl.BootError{Title: "no IP found", Output: bootOutput}219	}220	if err := vmimpl.WaitForSSH(inst.debug, 10*time.Minute, inst.sshhost,221		inst.sshkey, inst.sshuser, inst.os, 22, nil); err != nil {222		bootOutputStop <- true223		<-bootOutputStop224		return vmimpl.MakeBootError(err, bootOutput)225	}226	bootOutputStop <- true227	return nil228}229func (inst *instance) Close() {230	if inst.consolew != nil {231		inst.consolew.Close()232	}233	if inst.bhyve != nil {234		inst.bhyve.Process.Kill()235		inst.bhyve.Wait()236		osutil.RunCmd(time.Minute, "", "bhyvectl", fmt.Sprintf("--vm=%v", inst.vmName), "--destroy")237		inst.bhyve = nil238	}239	if inst.snapshot != "" {240		osutil.RunCmd(time.Minute, "", "zfs", "destroy", "-R", inst.snapshot)241		inst.snapshot = ""242	}243	if inst.tapdev != "" {244		osutil.RunCmd(time.Minute, "", "ifconfig", inst.tapdev, "destroy")245		inst.tapdev = ""246	}247}248func (inst *instance) Forward(port int) (string, error) {249	return fmt.Sprintf("%v:%v", inst.cfg.HostIP, port), nil250}251func (inst *instance) Copy(hostSrc string) (string, error) {252	vmDst := filepath.Join("/root", filepath.Base(hostSrc))253	args := append(vmimpl.SCPArgs(inst.debug, inst.sshkey, 22),254		hostSrc, inst.sshuser+"@"+inst.sshhost+":"+vmDst)255	if inst.debug {256		log.Logf(0, "running command: scp %#v", args)257	}258	_, err := osutil.RunCmd(10*time.Minute, "", "scp", args...)259	if err != nil {260		return "", err261	}262	return vmDst, nil263}264func (inst *instance) Run(timeout time.Duration, stop <-chan bool, command string) (265	<-chan []byte, <-chan error, error) {266	rpipe, wpipe, err := osutil.LongPipe()267	if err != nil {268		return nil, nil, err269	}270	inst.merger.Add("ssh", rpipe)271	args := append(vmimpl.SSHArgs(inst.debug, inst.sshkey, 22),272		inst.sshuser+"@"+inst.sshhost, command)273	if inst.debug {274		log.Logf(0, "running command: ssh %#v", args)275	}276	cmd := osutil.Command("ssh", args...)277	cmd.Stdout = wpipe278	cmd.Stderr = wpipe279	if err := cmd.Start(); err != nil {280		wpipe.Close()...

merger_test.go

Source:merger_test.go

...10)11func TestMerger(t *testing.T) {12	tee := new(bytes.Buffer)13	merger := NewOutputMerger(tee)14	rp1, wp1, err := osutil.LongPipe()15	if err != nil {16		t.Fatal(err)17	}18	defer wp1.Close()19	merger.Add("pipe1", rp1)20	rp2, wp2, err := osutil.LongPipe()21	if err != nil {22		t.Fatal(err)23	}24	defer wp2.Close()25	merger.Add("pipe2", rp2)26	wp1.Write([]byte("111"))27	select {28	case <-merger.Output:29		t.Fatalf("merger produced incomplete line")30	case <-time.After(10 * time.Millisecond):31	}32	wp2.Write([]byte("222"))33	select {34	case <-merger.Output:...

LongPipe

Using AI Code Generation

1import (2func main() {3    cmd := exec.Command("bash")4    cmd.Env = append(os.Environ(), "TERM=xterm")5    f, err := pty.Start(cmd)6    if err != nil {7        panic(err)8    }9    fmt.Fprintf(f, "ls10    buf := make([]byte, 1024)11    f.Read(buf)12    fmt.Println(string(buf))13}14import (15func main() {16    cmd := exec.Command("bash")17    cmd.Env = append(os.Environ(), "TERM=xterm")18    f, err := pty.Start(cmd)19    if err != nil {20        panic(err)21    }22    fmt.Fprintf(f, "ls23    buf := make([]byte, 1024)24    f.Read(buf)25    fmt.Println(string(buf))26}27import (28func main() {29    cmd := exec.Command("bash")30    cmd.Env = append(os.Environ(), "TERM=xterm")31    f, err := pty.Start(cmd)32    if err != nil {33        panic(err)34    }35    fmt.Fprintf(f, "ls36    buf := make([]byte, 1024)37    f.Read(buf)38    fmt.Println(string(buf))39}40import (41func main() {42    cmd := exec.Command("bash")43    cmd.Env = append(os.Environ(), "TERM=xterm")44    f, err := pty.Start(cmd)45    if err != nil {46        panic(err)47    }48    fmt.Fprintf(f, "ls49    buf := make([]byte, 1024)50    f.Read(buf)51    fmt.Println(string(buf))52}

LongPipe

Using AI Code Generation

1import (2func main() {3	cmd := exec.Command("ls", "-l")4	f, err := pty.Start(cmd)5	if err != nil {6		panic(err)7	}8	defer f.Close()9	fmt.Println("done")10}11import (12func main() {13	cmd := exec.Command("ls", "-l")14	f, err := pty.Start(cmd)15	if err != nil {16		panic(err)17	}18	defer f.Close()19	fmt.Println("done")20}21import (22func main() {23	cmd := exec.Command("ls", "-l")24	f, err := pty.Start(cmd)25	if err != nil {26		panic(err)27	}28	defer f.Close()29	fmt.Println("done")30}31import (32func main() {33	cmd := exec.Command("ls", "-l")34	f, err := pty.Start(cmd)35	if err != nil {36		panic(err)37	}38	defer f.Close()39	fmt.Println("done")40}41import (42func main() {43	cmd := exec.Command("ls", "-l")44	f, err := pty.Start(cmd)45	if err != nil {46		panic(err)47	}48	defer f.Close()49	fmt.Println("done")50}51import (52func main() {53	cmd := exec.Command("ls", "-l")54	f, err := pty.Start(cmd)55	if err != nil {56		panic(err)57	}58	defer f.Close()

LongPipe

Using AI Code Generation

1import (2    "github.com/bradfitz/goimports/goimports"3    "github.com/bradfitz/goimports/osutil"4func main() {5    cmd := exec.Command("goimports")6    cmd.Env = os.Environ()7    err := osutil.LongPipe(cmd)8    if err != nil {9        fmt.Fprintf(os.Stderr, "goimports error: %v10        os.Exit(1)11    }12    os.Exit(0)13}14package goimports15import (16    "github.com/bradfitz/goimports/osutil"17func main() {18    cmd := exec.Command("goimports")19    cmd.Env = os.Environ()20    err := osutil.LongPipe(cmd)21    if err != nil {22        fmt.Fprintf(os.Stderr, "goimports error: %v23        os.Exit(1)24    }25    os.Exit(0)26}27import (28func LongPipe(cmd *exec.Cmd) error {29    r, w, err := os.Pipe()30    if err != nil {31    }32    wg.Add(1)33    go func() {34        defer wg.Done()35        cmd.Run()36    }()37    _, err = io.Copy(w, os.Stdin)38    w.Close()39    if err != nil {40    }41    wg.Wait()42    return cmd.Wait()43}

LongPipe

Using AI Code Generation

1import (2func main() {3    user, err := user.Current()4    if err != nil {5        panic(err)6    }7    sshConfig := ssh_config.Get(user.HomeDir + "/.ssh/config")8    hostConfig, err := sshConfig.GetHost("myhost")9    if err != nil {10        panic(err)11    }12    hostname, err := hostConfig.Get("HostName")13    if err != nil {14        panic(err)15    }16    username, err := hostConfig.Get("User")17    if err != nil {18        panic(err)19    }20    port, err := hostConfig.Get("Port")21    if err != nil {22        panic(err)23    }24    hostnameSplit := strings.Split(hostname, ".")25    cmd := exec.Command("ssh", "-p", port, username+"@"+hostnameSplit[0])26    stdout, err := cmd.StdoutPipe()27    if err != nil {28        panic(err)29    }30    if err := cmd.Start(); err != nil {31        panic(err)32    }33    if _, err := io.Copy(os.Stdout, stdout); err != nil {34        panic(err)35    }36    if err := cmd.Wait(); err != nil {37        panic(err)38    }39}40import (41func main() {42    user, err := user.Current()43    if err != nil {44        panic(err)45    }46    sshConfig := ssh_config.Get(user.HomeDir + "/.ssh/config")

LongPipe

Using AI Code Generation

1import "os"2import "osutil"3func main() {4    f, err = os.Open("foo.txt", os.O_RDONLY, 0)5    if err != nil {6        os.Exit(1)7    }8    err = osutil.LongPipe(f, os.Stdout, 0)9    if err != nil {10        os.Exit(2)11    }12}13import "os"14import "osutil"15func main() {16    f, err = os.Open("foo.txt", os.O_RDONLY, 0)17    if err != nil {18        os.Exit(1)19    }20    err = osutil.LongPipe(f, os.Stdout, 1000)21    if err != nil {22        os.Exit(2)23    }24}25import "os"26import "osutil"27func main() {28    f, err = os.Open("foo.txt", os.O_RDONLY, 0)29    if err != nil {30        os.Exit(1)31    }32    err = osutil.LongPipe(f, os.Stdout, 1000000)33    if err != nil {34        os.Exit(2)35    }36}37import "os"38import "osutil"39func main() {40    f, err = os.Open("foo.txt", os.O_RDONLY, 0)41    if err != nil {42        os.Exit(1)43    }44    err = osutil.LongPipe(f, os.Stdout, 1000000000)45    if err != nil {46        os.Exit(2)47    }48}49import "os"50import "osutil"51func main() {52    f, err = os.Open("foo.txt", os.O_RDONLY, 0)

LongPipe

Using AI Code Generation

1import (2func main() {3    r, w, err := osutil.LongPipe()4    if err != nil {5        fmt.Println("Error creating pipe:", err)6    }7    cmd := exec.Command("cmd", "/c", "dir", "/s")8    sig := make(chan os.Signal, 1)9    signal.Notify(sig, os.Interrupt)10    if err := cmd.Start(); err != nil {11        fmt.Println("Error starting command:", err)12    }13    w.Close()14    buf := make([]byte, 1024)15    for {16        n, err := r.Read(buf)17        if err != nil {18        }19        fmt.Print(string(buf[:n]))20    }21    if err := cmd.Wait(); err != nil {22        fmt.Println("Error waiting for command:", err)23    }24    cmd.Process.Kill()25}26import (27func main() {28    r, w, err := osutil.LongPipe()29    if err != nil {30        fmt.Println("Error creating pipe:", err)31    }32    cmd := exec.Command("cmd", "/c", "dir", "/s")

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