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merged 2 commits into from
Aug 29, 2024
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Use the "C-unwind" abi for functions we cannot guarantee won't panic #171

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5bf612d
use c-unwind for functions that we cannot guarantee won't panic
folkertdev Aug 29, 2024
1bb343f
simplify logic for error messages
folkertdev Aug 29, 2024
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90 changes: 49 additions & 41 deletions libz-rs-sys/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -96,7 +96,7 @@ pub type z_off_t = c_long;
/// }
/// ```
#[export_name = prefix!(crc32)]
pub unsafe extern "C" fn crc32(crc: c_ulong, buf: *const Bytef, len: uInt) -> c_ulong {
pub unsafe extern "C-unwind" fn crc32(crc: c_ulong, buf: *const Bytef, len: uInt) -> c_ulong {
match unsafe { slice_from_raw_parts(buf, len as usize) } {
Some(buf) => zlib_rs::crc32(crc as u32, buf) as c_ulong,
None => 0,
Expand Down Expand Up @@ -131,7 +131,7 @@ pub unsafe extern "C" fn crc32(crc: c_ulong, buf: *const Bytef, len: uInt) -> c_
/// }
/// ```
#[export_name = prefix!(crc32_combine)]
pub extern "C" fn crc32_combine(crc1: c_ulong, crc2: c_ulong, len2: z_off_t) -> c_ulong {
pub extern "C-unwind" fn crc32_combine(crc1: c_ulong, crc2: c_ulong, len2: z_off_t) -> c_ulong {
zlib_rs::crc32_combine(crc1 as u32, crc2 as u32, len2 as u64) as c_ulong
}

Expand Down Expand Up @@ -161,7 +161,7 @@ pub extern "C" fn crc32_combine(crc1: c_ulong, crc2: c_ulong, len2: z_off_t) ->
/// }
/// ```
#[export_name = prefix!(adler32)]
pub unsafe extern "C" fn adler32(adler: c_ulong, buf: *const Bytef, len: uInt) -> c_ulong {
pub unsafe extern "C-unwind" fn adler32(adler: c_ulong, buf: *const Bytef, len: uInt) -> c_ulong {
match unsafe { slice_from_raw_parts(buf, len as usize) } {
Some(buf) => zlib_rs::adler32(adler as u32, buf) as c_ulong,
None => 1,
Expand Down Expand Up @@ -196,7 +196,11 @@ pub unsafe extern "C" fn adler32(adler: c_ulong, buf: *const Bytef, len: uInt) -
/// }
/// ```
#[export_name = prefix!(adler32_combine)]
pub extern "C" fn adler32_combine(adler1: c_ulong, adler2: c_ulong, len2: z_off_t) -> c_ulong {
pub extern "C-unwind" fn adler32_combine(
adler1: c_ulong,
adler2: c_ulong,
len2: z_off_t,
) -> c_ulong {
match u64::try_from(len2) {
Ok(len2) => zlib_rs::adler32_combine(adler1 as u32, adler2 as u32, len2) as c_ulong,
Err(_) => {
Expand Down Expand Up @@ -262,7 +266,7 @@ pub extern "C" fn adler32_combine(adler1: c_ulong, adler2: c_ulong, len2: z_off_
/// assert_eq!(dest, b"Ferris");
/// ```
#[export_name = prefix!(uncompress)]
pub unsafe extern "C" fn uncompress(
pub unsafe extern "C-unwind" fn uncompress(
dest: *mut u8,
destLen: *mut c_ulong,
source: *const u8,
Expand Down Expand Up @@ -311,7 +315,7 @@ pub unsafe extern "C" fn uncompress(
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflate)]
pub unsafe extern "C" fn inflate(strm: *mut z_stream, flush: i32) -> i32 {
pub unsafe extern "C-unwind" fn inflate(strm: *mut z_stream, flush: i32) -> i32 {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
let flush = InflateFlush::try_from(flush).unwrap_or_default();
zlib_rs::inflate::inflate(stream, flush) as _
Expand All @@ -335,7 +339,7 @@ pub unsafe extern "C" fn inflate(strm: *mut z_stream, flush: i32) -> i32 {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateEnd)]
pub unsafe extern "C" fn inflateEnd(strm: *mut z_stream) -> i32 {
pub unsafe extern "C-unwind" fn inflateEnd(strm: *mut z_stream) -> i32 {
match InflateStream::from_stream_mut(strm) {
Some(stream) => {
zlib_rs::inflate::end(stream);
Expand Down Expand Up @@ -369,7 +373,7 @@ pub unsafe extern "C" fn inflateEnd(strm: *mut z_stream) -> i32 {
/// - `zfree`
/// - `opaque`
#[export_name = prefix!(inflateBackInit_)]
pub unsafe extern "C" fn inflateBackInit_(
pub unsafe extern "C-unwind" fn inflateBackInit_(
_strm: z_streamp,
_windowBits: c_int,
_window: *mut c_uchar,
Expand All @@ -389,7 +393,7 @@ pub unsafe extern "C" fn inflateBackInit_(
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateBackInit_`]
#[export_name = prefix!(inflateBack)]
pub unsafe extern "C" fn inflateBack(
pub unsafe extern "C-unwind" fn inflateBack(
_strm: z_streamp,
_in: in_func,
_in_desc: *mut c_void,
Expand All @@ -416,7 +420,7 @@ pub unsafe extern "C" fn inflateBack(
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateBackInit_`]
#[export_name = prefix!(inflateBackEnd)]
pub unsafe extern "C" fn inflateBackEnd(_strm: z_streamp) -> c_int {
pub unsafe extern "C-unwind" fn inflateBackEnd(_strm: z_streamp) -> c_int {
todo!("inflateBack is not implemented yet")
}

Expand Down Expand Up @@ -445,7 +449,7 @@ pub unsafe extern "C" fn inflateBackEnd(_strm: z_streamp) -> c_int {
/// - `source` is `NULL`
/// - `source` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateCopy)]
pub unsafe extern "C" fn inflateCopy(dest: *mut z_stream, source: *const z_stream) -> i32 {
pub unsafe extern "C-unwind" fn inflateCopy(dest: *mut z_stream, source: *const z_stream) -> i32 {
let Some(dest) = (unsafe { dest.cast::<MaybeUninit<InflateStream>>().as_mut() }) else {
return ReturnCode::StreamError as _;
};
Expand Down Expand Up @@ -480,7 +484,7 @@ pub unsafe extern "C" fn inflateCopy(dest: *mut z_stream, source: *const z_strea
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateMark)]
pub unsafe extern "C" fn inflateMark(strm: *const z_stream) -> c_long {
pub unsafe extern "C-unwind" fn inflateMark(strm: *const z_stream) -> c_long {
if let Some(stream) = InflateStream::from_stream_ref(strm) {
zlib_rs::inflate::mark(stream)
} else {
Expand Down Expand Up @@ -514,7 +518,7 @@ pub unsafe extern "C" fn inflateMark(strm: *const z_stream) -> c_long {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateSync)]
pub unsafe extern "C" fn inflateSync(strm: *mut z_stream) -> i32 {
pub unsafe extern "C-unwind" fn inflateSync(strm: *mut z_stream) -> i32 {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
zlib_rs::inflate::sync(stream) as _
} else {
Expand All @@ -531,7 +535,7 @@ pub unsafe extern "C" fn inflateSync(strm: *mut z_stream) -> i32 {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateSyncPoint)]
pub unsafe extern "C" fn inflateSyncPoint(strm: *mut z_stream) -> i32 {
pub unsafe extern "C-unwind" fn inflateSyncPoint(strm: *mut z_stream) -> i32 {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
zlib_rs::inflate::sync_point(stream) as i32
} else {
Expand Down Expand Up @@ -565,7 +569,7 @@ pub unsafe extern "C" fn inflateSyncPoint(strm: *mut z_stream) -> i32 {
/// - `zfree`
/// - `opaque`
#[export_name = prefix!(inflateInit_)]
pub unsafe extern "C" fn inflateInit_(
pub unsafe extern "C-unwind" fn inflateInit_(
strm: z_streamp,
version: *const c_char,
stream_size: c_int,
Expand Down Expand Up @@ -598,7 +602,7 @@ pub unsafe extern "C" fn inflateInit_(
/// - `zfree`
/// - `opaque`
#[export_name = prefix!(inflateInit2_)]
pub unsafe extern "C" fn inflateInit2_(
pub unsafe extern "C-unwind" fn inflateInit2_(
strm: z_streamp,
windowBits: c_int,
version: *const c_char,
Expand All @@ -624,7 +628,7 @@ pub unsafe extern "C" fn inflateInit2_(
/// - `zalloc`
/// - `zfree`
/// - `opaque`
unsafe extern "C" fn inflateInit2(strm: z_streamp, windowBits: c_int) -> c_int {
unsafe extern "C-unwind" fn inflateInit2(strm: z_streamp, windowBits: c_int) -> c_int {
let Some(strm) = (unsafe { strm.as_mut() }) else {
return ReturnCode::StreamError as _;
};
Expand Down Expand Up @@ -659,7 +663,7 @@ unsafe extern "C" fn inflateInit2(strm: z_streamp, windowBits: c_int) -> c_int {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflatePrime)]
pub unsafe extern "C" fn inflatePrime(strm: *mut z_stream, bits: i32, value: i32) -> i32 {
pub unsafe extern "C-unwind" fn inflatePrime(strm: *mut z_stream, bits: i32, value: i32) -> i32 {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
zlib_rs::inflate::prime(stream, bits, value) as _
} else {
Expand All @@ -685,7 +689,7 @@ pub unsafe extern "C" fn inflatePrime(strm: *mut z_stream, bits: i32, value: i32
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateReset)]
pub unsafe extern "C" fn inflateReset(strm: *mut z_stream) -> i32 {
pub unsafe extern "C-unwind" fn inflateReset(strm: *mut z_stream) -> i32 {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
zlib_rs::inflate::reset(stream) as _
} else {
Expand All @@ -712,7 +716,7 @@ pub unsafe extern "C" fn inflateReset(strm: *mut z_stream) -> i32 {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateReset2)]
pub unsafe extern "C" fn inflateReset2(strm: *mut z_stream, windowBits: c_int) -> i32 {
pub unsafe extern "C-unwind" fn inflateReset2(strm: *mut z_stream, windowBits: c_int) -> i32 {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
let config = InflateConfig {
window_bits: windowBits,
Expand Down Expand Up @@ -751,7 +755,7 @@ pub unsafe extern "C" fn inflateReset2(strm: *mut z_stream, windowBits: c_int) -
/// - `dictionary` is `NULL`
/// - `dictionary` and `dictLength` satisfy the requirements of [`core::slice::from_raw_parts_mut::<u8>`]
#[export_name = prefix!(inflateSetDictionary)]
pub unsafe extern "C" fn inflateSetDictionary(
pub unsafe extern "C-unwind" fn inflateSetDictionary(
strm: *mut z_stream,
dictionary: *const u8,
dictLength: c_uint,
Expand Down Expand Up @@ -809,7 +813,7 @@ pub unsafe extern "C" fn inflateSetDictionary(
/// - if `head.name` is not NULL, it must be writable for at least `head.name_max` bytes
/// - if `head.comment` is not NULL, it must be writable for at least `head.comm_max` bytes
#[export_name = prefix!(inflateGetHeader)]
pub unsafe extern "C" fn inflateGetHeader(strm: z_streamp, head: gz_headerp) -> c_int {
pub unsafe extern "C-unwind" fn inflateGetHeader(strm: z_streamp, head: gz_headerp) -> c_int {
let Some(stream) = (unsafe { InflateStream::from_stream_mut(strm) }) else {
return ReturnCode::StreamError as _;
};
Expand All @@ -829,7 +833,7 @@ pub unsafe extern "C" fn inflateGetHeader(strm: z_streamp, head: gz_headerp) ->
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateUndermine)]
pub unsafe extern "C" fn inflateUndermine(strm: *mut z_stream, subvert: i32) -> c_int {
pub unsafe extern "C-unwind" fn inflateUndermine(strm: *mut z_stream, subvert: i32) -> c_int {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
zlib_rs::inflate::undermine(stream, subvert) as i32
} else {
Expand All @@ -844,7 +848,7 @@ pub unsafe extern "C" fn inflateUndermine(strm: *mut z_stream, subvert: i32) ->
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`inflateInit_`] or similar
#[export_name = prefix!(inflateResetKeep)]
pub unsafe extern "C" fn inflateResetKeep(strm: *mut z_stream) -> c_int {
pub unsafe extern "C-unwind" fn inflateResetKeep(strm: *mut z_stream) -> c_int {
if let Some(stream) = InflateStream::from_stream_mut(strm) {
zlib_rs::inflate::reset_keep(stream) as _
} else {
Expand All @@ -863,7 +867,7 @@ pub unsafe extern "C" fn inflateResetKeep(strm: *mut z_stream) -> c_int {
/// - `buf` is `NULL`
/// - `buf` and `len` satisfy the requirements of [`core::slice::from_raw_parts`]
#[export_name = prefix!(inflateCodesUsed)]
pub unsafe extern "C" fn inflateCodesUsed(_strm: *mut z_stream) -> c_ulong {
pub unsafe extern "C-unwind" fn inflateCodesUsed(_strm: *mut z_stream) -> c_ulong {
todo!()
}

Expand All @@ -884,7 +888,7 @@ pub unsafe extern "C" fn inflateCodesUsed(_strm: *mut z_stream) -> c_ulong {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflate)]
pub unsafe extern "C" fn deflate(strm: *mut z_stream, flush: i32) -> c_int {
pub unsafe extern "C-unwind" fn deflate(strm: *mut z_stream, flush: i32) -> c_int {
if let Some(stream) = DeflateStream::from_stream_mut(strm) {
match DeflateFlush::try_from(flush) {
Ok(flush) => zlib_rs::deflate::deflate(stream, flush) as _,
Expand Down Expand Up @@ -918,7 +922,7 @@ pub unsafe extern "C" fn deflate(strm: *mut z_stream, flush: i32) -> c_int {
/// - `head` is `NULL`
/// - `head` satisfies the requirements of `&mut *head`
#[export_name = prefix!(deflateSetHeader)]
pub unsafe extern "C" fn deflateSetHeader(strm: *mut z_stream, head: gz_headerp) -> c_int {
pub unsafe extern "C-unwind" fn deflateSetHeader(strm: *mut z_stream, head: gz_headerp) -> c_int {
let Some(stream) = (unsafe { DeflateStream::from_stream_mut(strm) }) else {
return ReturnCode::StreamError as _;
};
Expand All @@ -944,7 +948,7 @@ pub unsafe extern "C" fn deflateSetHeader(strm: *mut z_stream, head: gz_headerp)
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflateBound)]
pub unsafe extern "C" fn deflateBound(strm: *mut z_stream, sourceLen: c_ulong) -> c_ulong {
pub unsafe extern "C-unwind" fn deflateBound(strm: *mut z_stream, sourceLen: c_ulong) -> c_ulong {
zlib_rs::deflate::bound(DeflateStream::from_stream_mut(strm), sourceLen as usize) as c_ulong
}

Expand Down Expand Up @@ -1001,7 +1005,7 @@ pub unsafe extern "C" fn deflateBound(strm: *mut z_stream, sourceLen: c_ulong) -
/// assert_eq!(dest, [120, 156, 115, 75, 45, 42, 202, 44, 6, 0, 8, 6, 2, 108]);
/// ```
#[export_name = prefix!(compress)]
pub unsafe extern "C" fn compress(
pub unsafe extern "C-unwind" fn compress(
dest: *mut Bytef,
destLen: *mut c_ulong,
source: *const Bytef,
Expand Down Expand Up @@ -1044,7 +1048,7 @@ pub unsafe extern "C" fn compress(
/// - `source` is `NULL`
/// - `source` and `sourceLen` satisfy the requirements of [`core::slice::from_raw_parts`]
#[export_name = prefix!(compress2)]
pub unsafe extern "C" fn compress2(
pub unsafe extern "C-unwind" fn compress2(
dest: *mut Bytef,
destLen: *mut c_ulong,
source: *const Bytef,
Expand Down Expand Up @@ -1077,7 +1081,7 @@ pub unsafe extern "C" fn compress2(
///
/// Can be used before a [`compress`] or [`compress2`] call to allocate the destination buffer.
#[export_name = prefix!(compressBound)]
pub extern "C" fn compressBound(sourceLen: c_ulong) -> c_ulong {
pub extern "C-unwind" fn compressBound(sourceLen: c_ulong) -> c_ulong {
zlib_rs::deflate::compress_bound(sourceLen as usize) as c_ulong
}

Expand All @@ -1099,7 +1103,7 @@ pub extern "C" fn compressBound(sourceLen: c_ulong) -> c_ulong {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflateEnd)]
pub unsafe extern "C" fn deflateEnd(strm: *mut z_stream) -> i32 {
pub unsafe extern "C-unwind" fn deflateEnd(strm: *mut z_stream) -> i32 {
match DeflateStream::from_stream_mut(strm) {
Some(stream) => match zlib_rs::deflate::end(stream) {
Ok(_) => ReturnCode::Ok as _,
Expand Down Expand Up @@ -1127,7 +1131,7 @@ pub unsafe extern "C" fn deflateEnd(strm: *mut z_stream) -> i32 {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflateReset)]
pub unsafe extern "C" fn deflateReset(strm: *mut z_stream) -> i32 {
pub unsafe extern "C-unwind" fn deflateReset(strm: *mut z_stream) -> i32 {
match DeflateStream::from_stream_mut(strm) {
Some(stream) => zlib_rs::deflate::reset(stream) as _,
None => ReturnCode::StreamError as _,
Expand Down Expand Up @@ -1158,7 +1162,11 @@ pub unsafe extern "C" fn deflateReset(strm: *mut z_stream) -> i32 {
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflateParams)]
pub unsafe extern "C" fn deflateParams(strm: z_streamp, level: c_int, strategy: c_int) -> c_int {
pub unsafe extern "C-unwind" fn deflateParams(
strm: z_streamp,
level: c_int,
strategy: c_int,
) -> c_int {
let Ok(strategy) = Strategy::try_from(strategy) else {
return ReturnCode::StreamError as _;
};
Expand Down Expand Up @@ -1189,7 +1197,7 @@ pub unsafe extern "C" fn deflateParams(strm: z_streamp, level: c_int, strategy:
/// - `dictionary` is `NULL`
/// - `dictionary` and `dictLength` satisfy the requirements of [`core::slice::from_raw_parts_mut::<u8>`]
#[export_name = prefix!(deflateSetDictionary)]
pub unsafe extern "C" fn deflateSetDictionary(
pub unsafe extern "C-unwind" fn deflateSetDictionary(
strm: z_streamp,
dictionary: *const Bytef,
dictLength: uInt,
Expand Down Expand Up @@ -1225,7 +1233,7 @@ pub unsafe extern "C" fn deflateSetDictionary(
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflatePrime)]
pub unsafe extern "C" fn deflatePrime(strm: z_streamp, bits: c_int, value: c_int) -> c_int {
pub unsafe extern "C-unwind" fn deflatePrime(strm: z_streamp, bits: c_int, value: c_int) -> c_int {
match DeflateStream::from_stream_mut(strm) {
Some(stream) => zlib_rs::deflate::prime(stream, bits, value) as _,
None => ReturnCode::StreamError as _,
Expand Down Expand Up @@ -1257,7 +1265,7 @@ pub unsafe extern "C" fn deflatePrime(strm: z_streamp, bits: c_int, value: c_int
/// - `bits` is `NULL`
/// - `bits` satisfies the requirements of [`core::ptr::write::<c_int>`]
#[export_name = prefix!(deflatePending)]
pub unsafe extern "C" fn deflatePending(
pub unsafe extern "C-unwind" fn deflatePending(
strm: z_streamp,
pending: *mut c_uint,
bits: *mut c_int,
Expand Down Expand Up @@ -1304,7 +1312,7 @@ pub unsafe extern "C" fn deflatePending(
/// - `source` is `NULL`
/// - `source` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflateCopy)]
pub unsafe extern "C" fn deflateCopy(dest: z_streamp, source: z_streamp) -> c_int {
pub unsafe extern "C-unwind" fn deflateCopy(dest: z_streamp, source: z_streamp) -> c_int {
let Some(dest) = (unsafe { dest.cast::<MaybeUninit<DeflateStream>>().as_mut() }) else {
return ReturnCode::StreamError as _;
};
Expand Down Expand Up @@ -1384,7 +1392,7 @@ pub unsafe extern "C" fn deflateCopy(dest: z_streamp, source: z_streamp) -> c_in
/// let strm = unsafe { strm.assume_init_mut() };
/// ```
#[export_name = prefix!(deflateInit_)]
pub unsafe extern "C" fn deflateInit_(
pub unsafe extern "C-unwind" fn deflateInit_(
strm: z_streamp,
level: c_int,
version: *const c_char,
Expand Down Expand Up @@ -1474,7 +1482,7 @@ pub unsafe extern "C" fn deflateInit_(
/// let strm = unsafe { strm.assume_init_mut() };
/// ```
#[export_name = prefix!(deflateInit2_)]
pub unsafe extern "C" fn deflateInit2_(
pub unsafe extern "C-unwind" fn deflateInit2_(
strm: z_streamp,
level: c_int,
method: c_int,
Expand Down Expand Up @@ -1531,7 +1539,7 @@ pub unsafe extern "C" fn deflateInit2_(
/// - `strm` is `NULL`
/// - `strm` satisfies the requirements of `&mut *strm` and was initialized with [`deflateInit_`] or similar
#[export_name = prefix!(deflateTune)]
pub unsafe extern "C" fn deflateTune(
pub unsafe extern "C-unwind" fn deflateTune(
strm: z_streamp,
good_length: c_int,
max_lazy: c_int,
Expand Down
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