first version

sftpd/lister.go

@@ -0,0 +1,23 @@
+package sftpd
+
+import (
+	"io"
+	"os"
+)
+
+// ListerAt ..
+type ListerAt []os.FileInfo
+
+// ListAt returns the number of entries copied and an io.EOF error if we made it to the end of the file list.
+// Take a look at the pkg/sftp godoc for more information about how this function should work.
+func (l ListerAt) ListAt(f []os.FileInfo, offset int64) (int, error) {
+	if offset >= int64(len(l)) {
+		return 0, io.EOF
+	}
+
+	n := copy(f, l[offset:])
+	if n < len(f) {
+		return n, io.EOF
+	}
+	return n, nil
+}