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|
use core::fmt;
#[derive(Debug)]
#[non_exhaustive]
pub enum Error {
Io(std::io::Error),
InvalidMagic {
got: [u8; 2],
},
UnsupportedVersion {
got: u8,
},
InvalidEntryCount {
got: i16,
},
TooManyEntries {
got: usize,
},
EntryTableOutOfBounds {
table_offset: u64,
table_len: u64,
file_len: u64,
},
EntryTableDecryptFailed,
CorruptEntryTable(&'static str),
EntryIdOutOfRange {
id: u32,
entry_count: u32,
},
EntryDataOutOfBounds {
id: u32,
offset: u64,
size: u32,
file_len: u64,
},
AoTrailerInvalid,
MediaOverlayOutOfBounds {
overlay: u32,
file_len: u64,
},
UnsupportedMethod {
raw: u32,
},
PackedSizePastEof {
id: u32,
offset: u64,
packed_size: u32,
file_len: u64,
},
DeflateEofPlusOneQuirkRejected {
id: u32,
},
DecompressionFailed(&'static str),
OutputSizeMismatch {
expected: u32,
got: u32,
},
IntegerOverflow,
}
impl From<std::io::Error> for Error {
fn from(value: std::io::Error) -> Self {
Self::Io(value)
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Error::Io(e) => write!(f, "I/O error: {e}"),
Error::InvalidMagic { got } => write!(f, "invalid RsLi magic: {got:02X?}"),
Error::UnsupportedVersion { got } => write!(f, "unsupported RsLi version: {got:#x}"),
Error::InvalidEntryCount { got } => write!(f, "invalid entry_count: {got}"),
Error::TooManyEntries { got } => write!(f, "too many entries: {got} exceeds u32::MAX"),
Error::EntryTableOutOfBounds {
table_offset,
table_len,
file_len,
} => write!(
f,
"entry table out of bounds: off={table_offset}, len={table_len}, file={file_len}"
),
Error::EntryTableDecryptFailed => write!(f, "failed to decrypt entry table"),
Error::CorruptEntryTable(s) => write!(f, "corrupt entry table: {s}"),
Error::EntryIdOutOfRange { id, entry_count } => {
write!(f, "entry id out of range: id={id}, count={entry_count}")
}
Error::EntryDataOutOfBounds {
id,
offset,
size,
file_len,
} => write!(
f,
"entry data out of bounds: id={id}, off={offset}, size={size}, file={file_len}"
),
Error::AoTrailerInvalid => write!(f, "invalid AO trailer"),
Error::MediaOverlayOutOfBounds { overlay, file_len } => {
write!(
f,
"media overlay out of bounds: overlay={overlay}, file={file_len}"
)
}
Error::UnsupportedMethod { raw } => write!(f, "unsupported packing method: {raw:#x}"),
Error::PackedSizePastEof {
id,
offset,
packed_size,
file_len,
} => write!(
f,
"packed range past EOF: id={id}, off={offset}, size={packed_size}, file={file_len}"
),
Error::DeflateEofPlusOneQuirkRejected { id } => {
write!(f, "deflate EOF+1 quirk rejected for entry {id}")
}
Error::DecompressionFailed(s) => write!(f, "decompression failed: {s}"),
Error::OutputSizeMismatch { expected, got } => {
write!(f, "output size mismatch: expected={expected}, got={got}")
}
Error::IntegerOverflow => write!(f, "integer overflow"),
}
}
}
impl std::error::Error for Error {}
|
