// readNextChunk creates an io.LimitedReader for the next chunk of data,
// and returns io.EOF if the last chunk has been read.
func readNextChunk(r wire.SyncScanner) (io.Reader, error) {
id, err := r.ReadOctetString()
if err != nil {
return nil, err
}
switch id {
case "DATA":
return r.ReadBytes()
case "DONE":
return nil, io.EOF
default:
return nil, fmt.Errorf("expected chunk id 'DATA', but got '%s'", id)
}
}
func readNextDirListEntry(s wire.SyncScanner) (entry *DirEntry, done bool, err error) {
id, err := s.ReadOctetString()
if err != nil {
return
}
if id == "DONE" {
done = true
return
} else if id != "DENT" {
err = fmt.Errorf("error reading dir entries: expected dir entry ID 'DENT', but got '%s'", id)
return
}
mode, err := s.ReadFileMode()
if err != nil {
err = fmt.Errorf("error reading dir entries: error reading file mode: %v", err)
return
}
size, err := s.ReadInt32()
if err != nil {
err = fmt.Errorf("error reading dir entries: error reading file size: %v", err)
return
}
mtime, err := s.ReadTime()
if err != nil {
err = fmt.Errorf("error reading dir entries: error reading file time: %v", err)
return
}
name, err := s.ReadString()
if err != nil {
err = fmt.Errorf("error reading dir entries: error reading file name: %v", err)
return
}
done = false
entry = &DirEntry{
Name: name,
Mode: mode,
Size: size,
ModifiedAt: mtime,
}
return
}