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fix: make casefold work when ancestor directories are symbolic links (#3132)

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三咲雅 misaki masa 2025-09-03 00:15:57 +08:00 • committed by GitHub
parent d7df581b67
commit d670da80d3
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GPG key ID: B5690EEEBB952194
1 changed files with 56 additions and 18 deletions
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74
yazi-fs/src/provider/local/casefold.rs
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@ -16,26 +16,36 @@ pub async fn must_case_match(path: impl AsRef<Path>) -> bool {
target_os = "macos",
target_os = "netbsd",
target_os = "openbsd",
target_os = "freebsd"
target_os = "freebsd",
target_os = "windows"
))]
fn casefold_impl(path: PathBuf) -> io::Result<PathBuf> {
use std::{ffi::{CStr, CString, OsString}, os::{fd::{AsRawFd, FromRawFd, OwnedFd}, unix::ffi::OsStringExt}};
use libc::{F_GETPATH, O_RDONLY, O_SYMLINK, PATH_MAX};
let cstr = CString::new(path.into_os_string().into_vec())?;
let fd = match unsafe { libc::open(cstr.as_ptr(), O_RDONLY | O_SYMLINK) } {
ret if ret < 0 => return Err(io::Error::last_os_error()),
ret => unsafe { OwnedFd::from_raw_fd(ret) },
};
let mut buf = [0u8; PATH_MAX as usize];
if unsafe { libc::fcntl(fd.as_raw_fd(), F_GETPATH, buf.as_mut_ptr()) } < 0 {
return Err(io::Error::last_os_error());
let mut it = path.components();
let mut parts = vec![];
loop {
let p = it.as_path();
let q = final_path(p)?;
if p != q {
parts.push(q);
} else if parts.is_empty() {
return Ok(q);
} else {
break;
}
if it.next_back().is_none() {
break;
}
}
let cstr = unsafe { CStr::from_ptr(buf.as_ptr() as *const i8) };
Ok(OsString::from_vec(cstr.to_bytes().to_vec()).into())
let mut buf = it.as_path().to_path_buf();
for p in parts.into_iter().rev() {
if let Some(name) = p.file_name() {
buf.push(name);
} else {
return Err(io::Error::other("Cannot get filename"));
}
}
Ok(buf)
}
#[cfg(any(target_os = "linux", target_os = "android"))]
@ -89,8 +99,34 @@ fn casefold_impl(path: PathBuf) -> io::Result<PathBuf> {
}
}
#[cfg(any(
target_os = "macos",
target_os = "netbsd",
target_os = "openbsd",
target_os = "freebsd"
))]
fn final_path(path: &Path) -> io::Result<PathBuf> {
use std::{ffi::{CStr, CString, OsString}, os::{fd::{AsRawFd, FromRawFd, OwnedFd}, unix::ffi::{OsStrExt, OsStringExt}}};
use libc::{F_GETPATH, O_RDONLY, O_SYMLINK, PATH_MAX};
let cstr = CString::new(path.as_os_str().as_bytes())?;
let fd = match unsafe { libc::open(cstr.as_ptr(), O_RDONLY | O_SYMLINK) } {
ret if ret < 0 => return Err(io::Error::last_os_error()),
ret => unsafe { OwnedFd::from_raw_fd(ret) },
};
let mut buf = [0u8; PATH_MAX as usize];
if unsafe { libc::fcntl(fd.as_raw_fd(), F_GETPATH, buf.as_mut_ptr()) } < 0 {
return Err(io::Error::last_os_error());
}
let cstr = unsafe { CStr::from_ptr(buf.as_ptr() as *const i8) };
Ok(OsString::from_vec(cstr.to_bytes().to_vec()).into())
}
#[cfg(target_os = "windows")]
fn casefold_impl(path: PathBuf) -> io::Result<PathBuf> {
fn final_path(path: &Path) -> io::Result<PathBuf> {
use std::{ffi::OsString, os::windows::{ffi::OsStringExt, fs::OpenOptionsExt, io::AsRawHandle}};
use windows_sys::Win32::{Foundation::{HANDLE, MAX_PATH}, Storage::FileSystem::{FILE_FLAG_BACKUP_SEMANTICS, FILE_FLAG_OPEN_REPARSE_POINT, GetFinalPathNameByHandleW, VOLUME_NAME_DOS}};
@ -98,7 +134,7 @@ fn casefold_impl(path: PathBuf) -> io::Result<PathBuf> {
let file = std::fs::OpenOptions::new()
.access_mode(0)
.custom_flags(FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT)
.open(&path)?;
.open(path)?;
let mut buf = [0u16; MAX_PATH as usize];
let len = unsafe {
@ -112,6 +148,8 @@ fn casefold_impl(path: PathBuf) -> io::Result<PathBuf> {
if len == 0 {
Err(io::Error::last_os_error())
} else if buf.starts_with(&[92, 92, 63, 92]) {
Ok(PathBuf::from(OsString::from_wide(&buf[4..len as usize])))
} else {
Ok(PathBuf::from(OsString::from_wide(&buf[0..len as usize])))
}