Add all pids to state output

Also update libcontainer dep

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

vendor/src/github.com/opencontainers/runc/libcontainer/utils/utils.go

@@ -3,7 +3,9 @@ package utils
 import (
 	"crypto/rand"
 	"encoding/hex"
+	"encoding/json"
 	"io"
+	"os"
 	"path/filepath"
 	"syscall"
 )
@@ -36,10 +38,44 @@ func ResolveRootfs(uncleanRootfs string) (string, error) {
 }
 
 // ExitStatus returns the correct exit status for a process based on if it
-// was signaled or exited cleanly.
+// was signaled or exited cleanly
 func ExitStatus(status syscall.WaitStatus) int {
 	if status.Signaled() {
 		return exitSignalOffset + int(status.Signal())
 	}
 	return status.ExitStatus()
 }
+
+// WriteJSON writes the provided struct v to w using standard json marshaling
+func WriteJSON(w io.Writer, v interface{}) error {
+	data, err := json.Marshal(v)
+	if err != nil {
+		return err
+	}
+	_, err = w.Write(data)
+	return err
+}
+
+// CleanPath makes a path safe for use with filepath.Join. This is done by not
+// only cleaning the path, but also (if the path is relative) adding a leading
+// '/' and cleaning it (then removing the leading '/'). This ensures that a
+// path resulting from prepending another path will always resolve to lexically
+// be a subdirectory of the prefixed path. This is all done lexically, so paths
+// that include symlinks won't be safe as a result of using CleanPath.
+func CleanPath(path string) string {
+	// Ensure that all paths are cleaned (especially problematic ones like
+	// "/../../../../../" which can cause lots of issues).
+	path = filepath.Clean(path)
+
+	// If the path isn't absolute, we need to do more processing to fix paths
+	// such as "../../../../<etc>/some/path". We also shouldn't convert absolute
+	// paths to relative ones.
+	if !filepath.IsAbs(path) {
+		path = filepath.Clean(string(os.PathSeparator) + path)
+		// This can't fail, as (by definition) all paths are relative to root.
+		path, _ = filepath.Rel(string(os.PathSeparator), path)
+	}
+
+	// Clean the path again for good measure.
+	return filepath.Clean(path)
+}