--- a/src/libpam/memory.rs	Sat Jul 12 17:17:37 2025 -0400
+++ b/src/libpam/memory.rs	Sat Jul 12 18:16:18 2025 -0400
@@ -202,11 +202,16 @@
     ///
     /// You have to provide a pointer to the start of an allocation that is
     /// a valid 0-terminated C string.
-    unsafe fn from_ptr(ptr: *mut c_char) -> Option<Self> {
+    pub unsafe fn from_ptr(ptr: *mut c_char) -> Option<Self> {
         NonNull::new(ptr).map(|p| unsafe { Self(CHeapBox::from_ptr(p)) })
     }
 
-    unsafe fn from_box<T>(bx: CHeapBox<T>) -> Self {
+    /// Takes ownership of a CHeapBox.
+    ///
+    /// # Safety
+    ///
+    /// The box has to point to a valid 0-terminated C string.
+    pub unsafe fn from_box<T>(bx: CHeapBox<T>) -> Self {
         Self(CHeapBox::cast(bx))
     }