#![no_std]
#![allow(non_snake_case)]
#![allow(clippy::too_many_arguments)]
#![allow(clippy::needless_range_loop)] #![deny(unreachable_pub)]
#![deny(unsafe_op_in_unsafe_fn)]
#[cfg(feature = "std")]
extern crate std;
use core::ffi::c_int;
mod allocator;
mod blocksort;
mod bzlib;
mod compress;
mod crctable;
mod decompress;
#[cfg(feature = "stdio")]
mod high_level;
mod huffman;
mod randtable;
pub(crate) use bzlib::{Action, ReturnCode};
pub const BZ_OK: c_int = ReturnCode::BZ_OK as c_int;
pub const BZ_RUN_OK: c_int = ReturnCode::BZ_RUN_OK as c_int;
pub const BZ_FLUSH_OK: c_int = ReturnCode::BZ_FLUSH_OK as c_int;
pub const BZ_FINISH_OK: c_int = ReturnCode::BZ_FINISH_OK as c_int;
pub const BZ_STREAM_END: c_int = ReturnCode::BZ_STREAM_END as c_int;
pub const BZ_SEQUENCE_ERROR: c_int = ReturnCode::BZ_SEQUENCE_ERROR as c_int;
pub const BZ_PARAM_ERROR: c_int = ReturnCode::BZ_PARAM_ERROR as c_int;
pub const BZ_MEM_ERROR: c_int = ReturnCode::BZ_MEM_ERROR as c_int;
pub const BZ_DATA_ERROR: c_int = ReturnCode::BZ_DATA_ERROR as c_int;
pub const BZ_DATA_ERROR_MAGIC: c_int = ReturnCode::BZ_DATA_ERROR_MAGIC as c_int;
pub const BZ_IO_ERROR: c_int = ReturnCode::BZ_IO_ERROR as c_int;
pub const BZ_UNEXPECTED_EOF: c_int = ReturnCode::BZ_UNEXPECTED_EOF as c_int;
pub const BZ_OUTBUFF_FULL: c_int = ReturnCode::BZ_OUTBUFF_FULL as c_int;
pub const BZ_CONFIG_ERROR: c_int = ReturnCode::BZ_CONFIG_ERROR as c_int;
pub const BZ_RUN: c_int = Action::Run as c_int;
pub const BZ_FLUSH: c_int = Action::Flush as c_int;
pub const BZ_FINISH: c_int = Action::Finish as c_int;
pub const BZ_MAX_UNUSED: c_int = bzlib::BZ_MAX_UNUSED_U32 as c_int;
pub use bzlib::bz_stream;
#[cfg(feature = "stdio")]
pub use bzlib::BZFILE;
pub use bzlib::{BZ2_bzCompress, BZ2_bzCompressEnd, BZ2_bzCompressInit};
pub use bzlib::{BZ2_bzDecompress, BZ2_bzDecompressEnd, BZ2_bzDecompressInit};
pub use bzlib::{BZ2_bzBuffToBuffCompress, BZ2_bzBuffToBuffDecompress};
#[cfg(feature = "stdio")]
pub use bzlib::{BZ2_bzRead, BZ2_bzReadClose, BZ2_bzReadGetUnused, BZ2_bzReadOpen};
#[cfg(feature = "stdio")]
pub use bzlib::{BZ2_bzWrite, BZ2_bzWriteClose, BZ2_bzWriteClose64, BZ2_bzWriteOpen};
#[cfg(feature = "stdio")]
pub use bzlib::{
BZ2_bzclose, BZ2_bzdopen, BZ2_bzerror, BZ2_bzflush, BZ2_bzlibVersion, BZ2_bzopen, BZ2_bzread,
BZ2_bzwrite,
};
macro_rules! libbz2_rs_sys_version {
() => {
concat!("1.1.0-libbz2-rs-sys-", env!("CARGO_PKG_VERSION"))
};
}
pub(crate) use libbz2_rs_sys_version;
#[cfg(all(not(feature = "std"), feature = "stdio"))]
pub(crate) struct StderrWritter;
#[cfg(all(not(feature = "std"), feature = "stdio"))]
impl core::fmt::Write for StderrWritter {
fn write_str(&mut self, s: &str) -> core::fmt::Result {
use core::ffi::c_void;
use libc::write;
unsafe { write(2, s.as_ptr() as *const c_void, s.len() as _) };
Ok(())
}
}
macro_rules! debug_log {
($($arg:tt)*) => {
#[cfg(feature = "std")]
std::eprint!($($arg)*);
#[cfg(all(not(feature = "std"), feature = "stdio"))]
{
use core::fmt::Write;
let _ = write!($crate::StderrWritter, $($arg)*);
}
};
}
macro_rules! debug_logln {
($($arg:tt)*) => {
#[cfg(feature = "std")]
std::eprintln!($($arg)*);
#[cfg(all(not(feature = "std"), feature = "stdio"))]
{
use core::fmt::Write;
let _ = writeln!($crate::StderrWritter, $($arg)*);
}
};
}
pub(crate) use debug_log;
pub(crate) use debug_logln;
macro_rules! assert_h {
($condition:expr, $errcode:expr) => {
if !$condition {
$crate::handle_assert_failure($errcode)
}
};
}
#[cold]
fn handle_assert_failure(errcode: c_int) -> ! {
#[cfg(feature = "stdio")]
{
#[cfg(feature = "std")]
std::eprint!("{}", AssertFail(errcode));
#[cfg(feature = "std")]
std::process::exit(3);
#[cfg(not(feature = "std"))]
panic!("{}", AssertFail(errcode));
}
#[cfg(not(feature = "stdio"))]
{
extern "C" {
fn bz_internal_error(errcode: c_int);
}
unsafe { bz_internal_error(errcode) }
loop {}
}
}
use assert_h;
struct AssertFail(i32);
impl core::fmt::Display for AssertFail {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
write!(
f,
concat!(
"\n",
"\n",
"libbzip2-rs: internal error number {}.\n",
"This is a bug in libbzip2-rs, {}.\n",
"Please report it at: https://github.com/trifectatechfoundation/libbzip2-rs/issues\n",
"If this happened when you were using some program which uses\n",
"libbzip2-rs as a component, you should also report this bug to\n",
"the author(s) of that program.\n",
"Please make an effort to report this bug;\n",
"timely and accurate bug reports eventually lead to higher\n",
"quality software. Thanks.\n",
"\n"
),
self.0,
libbz2_rs_sys_version!(),
)?;
if self.0 == 1007 {
write!(
f,
concat!(
"\n",
"*** A special note about internal error number 1007 ***\n",
"\n",
"Experience suggests that a common cause of i.e. 1007\n",
"is unreliable memory or other hardware. The 1007 assertion\n",
"just happens to cross-check the results of huge numbers of\n",
"memory reads/writes, and so acts (unintendedly) as a stress\n",
"test of your memory system.\n",
"\n",
"I suggest the following: try compressing the file again,\n",
"possibly monitoring progress in detail with the -vv flag.\n",
"\n",
"* If the error cannot be reproduced, and/or happens at different\n",
" points in compression, you may have a flaky memory system.\n",
" Try a memory-test program. I have used Memtest86\n",
" (www.memtest86.com). At the time of writing it is free (GPLd).\n",
" Memtest86 tests memory much more thorougly than your BIOSs\n",
" power-on test, and may find failures that the BIOS doesn't.\n",
"\n",
"* If the error can be repeatably reproduced, this is a bug in\n",
" bzip2, and I would very much like to hear about it. Please\n",
" let me know, and, ideally, save a copy of the file causing the\n",
" problem -- without which I will be unable to investigate it.\n",
"\n"
)
)?;
}
Ok(())
}
}
#[cfg(test)]
mod test {
extern crate alloc;
use super::*;
use alloc::string::String;
#[test]
fn print_assert_fail_coverage() {
use core::fmt::Write;
write!(&mut String::new(), "{}", AssertFail(1007)).unwrap();
}
}