From 4dc79bb1d95bac9383c2417eaf2a59e4045560c5 Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Wed, 11 Sep 2019 14:45:43 +0200
Subject: [PATCH] clippy: fix access to unaligned buffer

via the newly introduced ReadExt::read_host_value_boxed()
from proxmox::tools::io.

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
---
 src/backup/fixed_index.rs | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/backup/fixed_index.rs b/src/backup/fixed_index.rs
index 779dd0b8..8a680122 100644
--- a/src/backup/fixed_index.rs
+++ b/src/backup/fixed_index.rs
@@ -18,6 +18,8 @@ use chrono::{Local, TimeZone};
 use super::ChunkInfo;
 use super::read_chunk::*;
 
+use proxmox::tools::io::ReadExt;
+
 /// Header format definition for fixed index files (`.fidx`)
 #[repr(C)]
 pub struct FixedIndexHeader {
@@ -77,11 +79,7 @@ impl FixedIndexReader {
         file.seek(SeekFrom::Start(0))?;
 
         let header_size = std::mem::size_of::<FixedIndexHeader>();
-
-        let mut buffer = vec![0u8; header_size];
-        file.read_exact(&mut buffer)?;
-
-        let header = unsafe { &mut * (buffer.as_ptr() as *mut FixedIndexHeader) };
+        let header: Box<FixedIndexHeader> = unsafe { file.read_host_value_boxed()? };
 
         if header.magic != super::FIXED_SIZED_CHUNK_INDEX_1_0 {
             bail!("got unknown magic number");