fix bugs

fuzz_write/src/main.rs

@@ -224,7 +224,7 @@ fn do_operation(
                     "let sub_writer = {{\n\
                           let mut initial_junk = Cursor::new(vec!{initial_junk:?});\n\
                           initial_junk.seek(SeekFrom::End(0))?;
-                          let mut writer = ZipWriter::new(initial_junk);",/
+                          let mut writer = ZipWriter::new(initial_junk);",
                 )?;
             }
             let mut initial_junk = Cursor::new(initial_junk.into_vec());

src/write.rs

@@ -425,6 +425,11 @@ impl<T: FileOptionExtension> FileOptions<'_, T> {
         *self.permissions.get_or_insert(0o644) |= ffi::S_IFREG;
     }
 
+    /// Indicates whether this file will be encrypted (whether with AES or ZipCrypto).
+    pub const fn has_encryption(&self) -> bool {
+        self.aes_mode.is_some() || self.encrypt_with.is_some()
+    }
+
     /// Set the compression method for the new file
     ///
     /// The default is `CompressionMethod::Deflated` if it is enabled. If not,