func (c *decoder) Decode(v interface{}) error {
pbv, ok := v.(proto.Message)
if !ok {
return ErrNotProtobuf
}
if c.c.mc {
// if multicodec, consume the header first
if err := mc.ConsumeHeader(c.r, c.c.Header()); err != nil {
return err
}
}
if c.c.msgio {
msg, err := msgio.NewReader(c.r).ReadMsg()
if err != nil {
return err
}
return proto.Unmarshal(msg, pbv)
}
return errors.New("protobuf without msgio not supported yet")
}
// NewETMReader Encrypt-Then-MAC
func NewETMReader(r io.Reader, s cipher.Stream, mac HMAC) msgio.ReadCloser {
return &etmReader{msg: msgio.NewReader(r), str: s, mac: mac}
}