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restore UnexpectedHeader

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This commit is contained in:
Robin Appelman 2025-02-19 23:15:02 +01:00
commit 7f2c927e7b
2 changed files with 10 additions and 1 deletions
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9
src/bspfile.rs
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@ -12,7 +12,14 @@ pub struct BspFile<'a> {
impl<'a> BspFile<'a> {
pub fn new(data: &'a [u8]) -> BspResult<Self> {
let mut cursor = Cursor::new(data);
let header: Header = cursor.read_le()?;
let header: Header = cursor.read_le().map_err(|err| match err {
binrw::Error::BadMagic { .. } => {
BspError::UnexpectedHeader(data[..4].try_into().expect(
"always enough data because otherwise a different binrw error would be hit",
))
}
error => BspError::MalformedData(error),
})?;
let directories = cursor.read_le()?;
Ok(BspFile {

2
src/error.rs
View file

@ -7,6 +7,8 @@ use zip::result::ZipError;
#[non_exhaustive]
#[derive(Debug, Error)]
pub enum BspError {
#[error("unexpected magic numbers or version: {0:?}")]
UnexpectedHeader([u8; 4]),
#[error("bsp lump is out of bounds of the bsp file")]
LumpOutOfBounds(LumpEntry),
#[error("bsp game lump is out of bounds of the bsp file")]