mirror of
https://github.com/topjohnwu/Magisk.git
synced 2025-04-03 02:05:39 +00:00
4ee4cbada6
- Introduce new types: LoggedResult and LoggedError - Introduce new extension methods to log and add additional msgs - Never exit when logging error messages in Rust (all errors should be handled by using Result and Rust's error propagation) - Remove all usages of anyhow as it doesn't fit Magisk's use cases
68 lines
1.8 KiB
Rust
68 lines
1.8 KiB
Rust
// Functions listed here are just to export to C++
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use std::fmt::Write;
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use std::io;
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use std::os::fd::{BorrowedFd, OwnedFd, RawFd};
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use cxx::private::c_char;
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use libc::mode_t;
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use crate::{
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fd_path, map_fd, map_file, mkdirs, realpath, rm_rf, slice_from_ptr_mut, Directory, ResultExt,
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Utf8CStr,
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};
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pub(crate) fn fd_path_for_cxx(fd: RawFd, buf: &mut [u8]) -> isize {
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fd_path(fd, buf)
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.log_cxx_with_msg(|w| w.write_str("fd_path failed"))
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.map_or(-1_isize, |v| v as isize)
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}
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#[no_mangle]
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unsafe extern "C" fn canonical_path(path: *const c_char, buf: *mut u8, bufsz: usize) -> isize {
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match Utf8CStr::from_ptr(path) {
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Ok(p) => realpath(p, slice_from_ptr_mut(buf, bufsz)).map_or(-1, |v| v as isize),
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Err(_) => -1,
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}
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}
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#[export_name = "mkdirs"]
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unsafe extern "C" fn mkdirs_for_cxx(path: *const c_char, mode: mode_t) -> i32 {
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match Utf8CStr::from_ptr(path) {
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Ok(p) => mkdirs(p, mode).map_or(-1, |_| 0),
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Err(_) => -1,
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}
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}
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#[export_name = "rm_rf"]
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unsafe extern "C" fn rm_rf_for_cxx(path: *const c_char) -> bool {
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match Utf8CStr::from_ptr(path) {
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Ok(p) => rm_rf(p).map_or(false, |_| true),
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Err(_) => false,
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}
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}
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#[no_mangle]
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unsafe extern "C" fn frm_rf(fd: OwnedFd) -> bool {
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fn inner(fd: OwnedFd) -> io::Result<()> {
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Directory::try_from(fd)?.remove_all()
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}
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inner(fd).map_or(false, |_| true)
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}
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pub(crate) fn map_file_for_cxx(path: &[u8], rw: bool) -> &'static mut [u8] {
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unsafe {
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map_file(Utf8CStr::from_bytes_unchecked(path), rw)
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.log_cxx()
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.unwrap_or(&mut [])
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}
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}
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pub(crate) fn map_fd_for_cxx(fd: RawFd, sz: usize, rw: bool) -> &'static mut [u8] {
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unsafe {
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map_fd(BorrowedFd::borrow_raw(fd), sz, rw)
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.log_cxx()
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.unwrap_or(&mut [])
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}
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}
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