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src/backup/fixed_index.rs: improve bound checks inside add_digest

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This commit is contained in:
Dietmar Maurer 2019-05-28 08:47:03 +02:00
parent e1225de467
commit fc14b84937
1 changed files with 4 additions and 0 deletions
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src/backup/fixed_index.rs
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@ -355,6 +355,10 @@ impl FixedIndexWriter {
pub fn add_digest(&mut self, index: usize, digest: &[u8; 32]) -> Result<(), Error> {
if index >= self.index_length {
bail!("add digest failed - index out of range ({} >= {})", index, self.index_length);
}
let index_pos = index*32;
unsafe {
let dst = self.index.add(index_pos);