if len(params) >= 1 {
			apiErr.Bucket = params[0]
		}
		return apiErr
	case errVolumeExists.Error():
		apiErr := BucketExists{}
		if len(params) >= 1 {
			apiErr.Bucket = params[0]
		}
		return apiErr
	case errDiskFull.Error():
		return StorageFull{}
	case errTooManyOpenFiles.Error():
		return SlowDown{}
	case errFileAccessDenied.Error():
		apiErr := PrefixAccessDenied{}
		if len(params) >= 1 {
			apiErr.Bucket = params[0]

		index := index
		g.Go(func() (err error) {
			if disks[index] == nil {
				return errDiskNotFound
			}
			rf, err := disks[index].ReadXL(ctx, bucket, object, readData)
			if err != nil {
				return err
			}
			rawFileInfos[index] = rf
			return nil
		}, index)
	}

	return rawFileInfos, g.Wait()
}

			apiErr.Description = fmt.Sprintf("The authorization header is malformed; the region is wrong; expecting '%s'.", globalSite.Region)
			return apiErr
		}
	}
	return apiErr
}

func (e errorCodeMap) ToAPIErr(errCode APIErrorCode) APIError {
	return e.ToAPIErrWithErr(errCode, nil)
}

// error code to APIError structure, these fields carry respective
// descriptions for all the error responses.

	}

	if dir == "" {
		if !dirSet {
			return nil, fmt.Errorf("missing option must be provided")
		}
		return nil, fmt.Errorf("provided option cannot be empty")
	}

	// Disallow relative paths, figure out absolute paths.
	dirAbs, err := filepath.Abs(dir)
	if err != nil {
		return nil, err
	}
	err = mkdirAllIgnorePerm(dirAbs)
	if err != nil {

	p, l := 0, data.Len()
	if l <= 1 {
		return l
	}
	for i := 1; i < l; i++ {
		if !data.Less(p, i) {
			continue
		}
		p++
		if p < i {
			data.Swap(p, i)
		}
	}
	return p + 1
}

// Remove any duplicates and return unique entries.
func uniqueEntries(paths []string) []string {
	sort.Strings(paths)
	n := uniq(sort.StringSlice(paths))
	return paths[:n]
}