openpgp: Make field private, provide an accessor

  - Don't export `CTBOld::length_type`.  Provide a getter,
    `CTBOld::length_type`, instead.

1 files changed, 6 insertions, 1 deletions

diff --git a/openpgp/src/packet/header/ctb.rs b/openpgp/src/packet/header/ctb.rs
index b6cbd457..073798f5 100644
--- a/openpgp/src/packet/header/ctb.rs
+++ b/openpgp/src/packet/header/ctb.rs
@@ -110,7 +110,7 @@ pub struct CTBOld {
     /// Common CTB fields.
     common: CTBCommon,
     /// Type of length specifier.
-    pub length_type: PacketLengthType,
+    length_type: PacketLengthType,
 }
 
 impl CTBOld {
@@ -163,6 +163,11 @@ impl CTBOld {
     pub fn tag(&self) -> Tag {
         self.common.tag
     }
+
+    /// Returns the packet's length type.
+    pub fn length_type(&self) -> PacketLengthType {
+        self.length_type
+    }
 }
 
 /// A sum type for the different CTB variants.