tyler/proxmox-backup
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clippy: fix access to unaligned buffer

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

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This commit is contained in:
Wolfgang Bumiller 2019-09-11 14:45:43 +02:00
parent ccdf3ad1ec
commit 4dc79bb1d9
1 changed files with 3 additions and 5 deletions
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8
src/backup/fixed_index.rs
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@ -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");