update systemd & dbus dependencies

Update the outdated systemd and dbus dependencies which are now provided
as go modules.  This will further tighten our dependencies and releases
and pave the way for the upcoming auto-update feature.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 210 insertions, 0 deletions

diff --git a/vendor/github.com/godbus/dbus/v5/encoder.go b/vendor/github.com/godbus/dbus/v5/encoder.go
new file mode 100644
index 000000000..adfbb75c5
--- /dev/null
+++ b/vendor/github.com/godbus/dbus/v5/encoder.go
@@ -0,0 +1,210 @@
+package dbus
+
+import (
+	"bytes"
+	"encoding/binary"
+	"io"
+	"reflect"
+)
+
+// An encoder encodes values to the D-Bus wire format.
+type encoder struct {
+	out   io.Writer
+	order binary.ByteOrder
+	pos   int
+}
+
+// NewEncoder returns a new encoder that writes to out in the given byte order.
+func newEncoder(out io.Writer, order binary.ByteOrder) *encoder {
+	return newEncoderAtOffset(out, 0, order)
+}
+
+// newEncoderAtOffset returns a new encoder that writes to out in the given
+// byte order. Specify the offset to initialize pos for proper alignment
+// computation.
+func newEncoderAtOffset(out io.Writer, offset int, order binary.ByteOrder) *encoder {
+	enc := new(encoder)
+	enc.out = out
+	enc.order = order
+	enc.pos = offset
+	return enc
+}
+
+// Aligns the next output to be on a multiple of n. Panics on write errors.
+func (enc *encoder) align(n int) {
+	pad := enc.padding(0, n)
+	if pad > 0 {
+		empty := make([]byte, pad)
+		if _, err := enc.out.Write(empty); err != nil {
+			panic(err)
+		}
+		enc.pos += pad
+	}
+}
+
+// pad returns the number of bytes of padding, based on current position and additional offset.
+// and alignment.
+func (enc *encoder) padding(offset, algn int) int {
+	abs := enc.pos + offset
+	if abs%algn != 0 {
+		newabs := (abs + algn - 1) & ^(algn - 1)
+		return newabs - abs
+	}
+	return 0
+}
+
+// Calls binary.Write(enc.out, enc.order, v) and panics on write errors.
+func (enc *encoder) binwrite(v interface{}) {
+	if err := binary.Write(enc.out, enc.order, v); err != nil {
+		panic(err)
+	}
+}
+
+// Encode encodes the given values to the underlying reader. All written values
+// are aligned properly as required by the D-Bus spec.
+func (enc *encoder) Encode(vs ...interface{}) (err error) {
+	defer func() {
+		err, _ = recover().(error)
+	}()
+	for _, v := range vs {
+		enc.encode(reflect.ValueOf(v), 0)
+	}
+	return nil
+}
+
+// encode encodes the given value to the writer and panics on error. depth holds
+// the depth of the container nesting.
+func (enc *encoder) encode(v reflect.Value, depth int) {
+	enc.align(alignment(v.Type()))
+	switch v.Kind() {
+	case reflect.Uint8:
+		var b [1]byte
+		b[0] = byte(v.Uint())
+		if _, err := enc.out.Write(b[:]); err != nil {
+			panic(err)
+		}
+		enc.pos++
+	case reflect.Bool:
+		if v.Bool() {
+			enc.encode(reflect.ValueOf(uint32(1)), depth)
+		} else {
+			enc.encode(reflect.ValueOf(uint32(0)), depth)
+		}
+	case reflect.Int16:
+		enc.binwrite(int16(v.Int()))
+		enc.pos += 2
+	case reflect.Uint16:
+		enc.binwrite(uint16(v.Uint()))
+		enc.pos += 2
+	case reflect.Int, reflect.Int32:
+		enc.binwrite(int32(v.Int()))
+		enc.pos += 4
+	case reflect.Uint, reflect.Uint32:
+		enc.binwrite(uint32(v.Uint()))
+		enc.pos += 4
+	case reflect.Int64:
+		enc.binwrite(v.Int())
+		enc.pos += 8
+	case reflect.Uint64:
+		enc.binwrite(v.Uint())
+		enc.pos += 8
+	case reflect.Float64:
+		enc.binwrite(v.Float())
+		enc.pos += 8
+	case reflect.String:
+		enc.encode(reflect.ValueOf(uint32(len(v.String()))), depth)
+		b := make([]byte, v.Len()+1)
+		copy(b, v.String())
+		b[len(b)-1] = 0
+		n, err := enc.out.Write(b)
+		if err != nil {
+			panic(err)
+		}
+		enc.pos += n
+	case reflect.Ptr:
+		enc.encode(v.Elem(), depth)
+	case reflect.Slice, reflect.Array:
+		if depth >= 64 {
+			panic(FormatError("input exceeds container depth limit"))
+		}
+		// Lookahead offset: 4 bytes for uint32 length (with alignment),
+		// plus alignment for elements.
+		n := enc.padding(0, 4) + 4
+		offset := enc.pos + n + enc.padding(n, alignment(v.Type().Elem()))
+
+		var buf bytes.Buffer
+		bufenc := newEncoderAtOffset(&buf, offset, enc.order)
+
+		for i := 0; i < v.Len(); i++ {
+			bufenc.encode(v.Index(i), depth+1)
+		}
+		enc.encode(reflect.ValueOf(uint32(buf.Len())), depth)
+		length := buf.Len()
+		enc.align(alignment(v.Type().Elem()))
+		if _, err := buf.WriteTo(enc.out); err != nil {
+			panic(err)
+		}
+		enc.pos += length
+	case reflect.Struct:
+		if depth >= 64 && v.Type() != signatureType {
+			panic(FormatError("input exceeds container depth limit"))
+		}
+		switch t := v.Type(); t {
+		case signatureType:
+			str := v.Field(0)
+			enc.encode(reflect.ValueOf(byte(str.Len())), depth+1)
+			b := make([]byte, str.Len()+1)
+			copy(b, str.String())
+			b[len(b)-1] = 0
+			n, err := enc.out.Write(b)
+			if err != nil {
+				panic(err)
+			}
+			enc.pos += n
+		case variantType:
+			variant := v.Interface().(Variant)
+			enc.encode(reflect.ValueOf(variant.sig), depth+1)
+			enc.encode(reflect.ValueOf(variant.value), depth+1)
+		default:
+			for i := 0; i < v.Type().NumField(); i++ {
+				field := t.Field(i)
+				if field.PkgPath == "" && field.Tag.Get("dbus") != "-" {
+					enc.encode(v.Field(i), depth+1)
+				}
+			}
+		}
+	case reflect.Map:
+		// Maps are arrays of structures, so they actually increase the depth by
+		// 2.
+		if depth >= 63 {
+			panic(FormatError("input exceeds container depth limit"))
+		}
+		if !isKeyType(v.Type().Key()) {
+			panic(InvalidTypeError{v.Type()})
+		}
+		keys := v.MapKeys()
+		// Lookahead offset: 4 bytes for uint32 length (with alignment),
+		// plus 8-byte alignment
+		n := enc.padding(0, 4) + 4
+		offset := enc.pos + n + enc.padding(n, 8)
+
+		var buf bytes.Buffer
+		bufenc := newEncoderAtOffset(&buf, offset, enc.order)
+		for _, k := range keys {
+			bufenc.align(8)
+			bufenc.encode(k, depth+2)
+			bufenc.encode(v.MapIndex(k), depth+2)
+		}
+		enc.encode(reflect.ValueOf(uint32(buf.Len())), depth)
+		length := buf.Len()
+		enc.align(8)
+		if _, err := buf.WriteTo(enc.out); err != nil {
+			panic(err)
+		}
+		enc.pos += length
+	case reflect.Interface:
+		enc.encode(reflect.ValueOf(MakeVariant(v.Interface())), depth)
+	default:
+		panic(InvalidTypeError{v.Type()})
+	}
+}