M-Labs/rust-fatfs
3
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Ignore volume ID and label if signature is not valid.

Browse Source
This commit is contained in:
Rafał Harabień 2017-11-08 20:03:21 +01:00
parent 5c0ad0ce18
commit 8a8ee3c51a
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/fs.rs
View File

@ -121,6 +121,12 @@ impl BiosParameterBlock {
rdr.read_exact(&mut bpb.volume_label)?;
rdr.read_exact(&mut bpb.fs_type_label)?;
}
if bpb.ext_sig != 0x29 {
// fields after ext_sig are not used - clean them
bpb.volume_id = 0;
bpb.volume_label = [0; 11];
bpb.fs_type_label = [0; 8];
}
Ok(bpb)
}
}