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-rw-r--r--src/sleep_file.rs16
-rw-r--r--src/sleep_register.rs7
2 files changed, 14 insertions, 9 deletions
diff --git a/src/sleep_file.rs b/src/sleep_file.rs
index 71e95ba..90e08c4 100644
--- a/src/sleep_file.rs
+++ b/src/sleep_file.rs
@@ -1,6 +1,6 @@
use std::io::prelude::*;
-use std::io::SeekFrom;
+use std::os::unix::fs::FileExt;
use std::path::Path;
use std::fs::File;
use integer_encoding::FixedInt;
@@ -139,9 +139,10 @@ impl SleepStorage for SleepFile {
bail!("Tried to read beyond end of SLEEP file");
}
let mut entry = vec![0; entry_size];
- self.file
- .seek(SeekFrom::Start(32 + (entry_size as u64) * index))?;
- self.file.read_exact(&mut entry)?;
+ let got = self.file.read_at(&mut entry, 32 + (entry_size as u64) * index)?;
+ if got != entry.len() {
+ bail!("Short file read");
+ }
Ok(entry)
}
@@ -150,9 +151,10 @@ impl SleepStorage for SleepFile {
if data.len() != self.entry_size as usize {
bail!("Tried to write mis-sized data");
}
- self.file
- .seek(SeekFrom::Start(32 + (self.entry_size as u64) * index))?;
- self.file.write_all(&data)?;
+ let put = self.file.write_at(&data, 32 + (self.entry_size as u64) * index)?;
+ if put != data.len() {
+ bail!("Short file write");
+ }
Ok(())
}
diff --git a/src/sleep_register.rs b/src/sleep_register.rs
index 3e1c48e..276e4c9 100644
--- a/src/sleep_register.rs
+++ b/src/sleep_register.rs
@@ -3,6 +3,7 @@ use std::io::prelude::*;
use std::fs::File;
use std::path::{Path, PathBuf};
use std::io::SeekFrom;
+use std::os::unix::fs::FileExt;
use integer_encoding::FixedInt;
use std::fs::OpenOptions;
use crypto::blake2b::Blake2b;
@@ -412,8 +413,10 @@ impl HyperRegister for SleepDirRegister {
// Read chunk
let mut data = vec![0; data_len as usize];
- data_file.seek(SeekFrom::Start(offset))?;
- data_file.read_exact(&mut data)?;
+ let got = data_file.read_at(&mut data, offset)?;
+ if got != data.len() {
+ bail!("Short file read");
+ }
// TODO: check the hash? separate function?
Ok(data)