From d60e7cc27dffc57905e69c1a328cfba10b5eeddc Mon Sep 17 00:00:00 2001
From: jerry73204 <jerry73204@gmail.com>
Date: Fri, 29 May 2020 19:18:06 +0800
Subject: [PATCH] Fix wrong slice index when reading a file

---
 src/fs/file.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fs/file.rs b/src/fs/file.rs
index 1930fdd..2ff5643 100644
--- a/src/fs/file.rs
+++ b/src/fs/file.rs
@@ -673,7 +673,7 @@ impl LockGuard<State> {
                 if available > 0 || self.cache.is_empty() {
                     // Copy data from the cache into the buffer.
                     let n = cmp::min(available, buf.len());
-                    buf[..n].copy_from_slice(&self.cache[start..n]);
+                    buf[..n].copy_from_slice(&self.cache[start..(start + n)]);
 
                     // Move the read cursor forward.
                     self.mode = Mode::Reading(start + n);