auronandace
59 lines
1.5 KiB
Rust
59 lines
1.5 KiB
Rust
//! `sys_statvfs.h` implementation.
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//!
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//! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/sys_statvfs.h.html>.
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use crate::{
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c_str::CStr,
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error::ResultExt,
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header::fcntl::O_PATH,
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out::Out,
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platform::{
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Pal, Sys,
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types::{c_char, c_int, c_ulong, fsblkcnt_t, fsfilcnt_t},
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},
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};
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//pub const ST_RDONLY
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//pub const ST_NOSUID
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#[repr(C)]
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#[derive(Default)]
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pub struct statvfs {
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pub f_bsize: c_ulong,
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pub f_frsize: c_ulong,
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pub f_blocks: fsblkcnt_t,
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pub f_bfree: fsblkcnt_t,
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pub f_bavail: fsblkcnt_t,
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pub f_files: fsfilcnt_t,
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pub f_ffree: fsfilcnt_t,
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pub f_favail: fsfilcnt_t,
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pub f_fsid: c_ulong,
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pub f_flag: c_ulong,
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pub f_namemax: c_ulong,
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}
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/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/fstatvfs.html>.
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#[unsafe(no_mangle)]
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pub unsafe extern "C" fn fstatvfs(fildes: c_int, buf: *mut statvfs) -> c_int {
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let buf = unsafe { Out::nonnull(buf) };
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Sys::fstatvfs(fildes, buf).map(|()| 0).or_minus_one_errno()
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}
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/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/fstatvfs.html>.
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#[unsafe(no_mangle)]
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pub unsafe extern "C" fn statvfs(file: *const c_char, buf: *mut statvfs) -> c_int {
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let file = unsafe { CStr::from_ptr(file) };
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let buf = unsafe { Out::nonnull(buf) };
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// TODO: Rustify
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let fd = Sys::open(file, O_PATH, 0).or_minus_one_errno();
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if fd < 0 {
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return -1;
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}
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let res = Sys::fstatvfs(fd, buf).map(|()| 0).or_minus_one_errno();
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if let Ok(()) = Sys::close(fd) {}; // TODO handle error
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res
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}
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