From 57440efa16fccbf80f2832ba43006fd32521d2d9 Mon Sep 17 00:00:00 2001
From: Jiahao XU <Jiahao_XU@outlook.com>
Date: Wed, 20 Jul 2022 22:17:06 +1000
Subject: [PATCH] Refactor: Extract new fn `central_header_to_zip_file_inner`

that does not require `reader` to implement `io::Seek`.

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
---
 src/read.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/read.rs b/src/read.rs
index dad20c26..15210f58 100644
--- a/src/read.rs
+++ b/src/read.rs
@@ -650,6 +650,16 @@ pub(crate) fn central_header_to_zip_file<R: Read + io::Seek>(
     archive_offset: u64,
 ) -> ZipResult<ZipFileData> {
     let central_header_start = reader.stream_position()?;
+
+    central_header_to_zip_file_inner(reader, archive_offset, central_header_start)
+}
+
+/// Parse a central directory entry to collect the information for the file.
+fn central_header_to_zip_file_inner<R: Read>(
+    reader: &mut R,
+    central_header_start: u64,
+    archive_offset: u64,
+) -> ZipResult<ZipFileData> {
     // Parse central header
     let signature = reader.read_u32::<LittleEndian>()?;
     if signature != spec::CENTRAL_DIRECTORY_HEADER_SIGNATURE {