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|
pub use libc::dev_t;
pub use libc::stat as FileStat;
use {Errno, Result, NixPath};
use fcntl::AtFlags;
use libc::{self, mode_t};
use std::mem;
use std::os::unix::io::RawFd;
mod ffi {
use libc::{c_char, c_int, mode_t, dev_t};
pub use libc::{stat, fstat, lstat};
extern {
pub fn mknod(pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
pub fn umask(mask: mode_t) -> mode_t;
}
}
libc_bitflags!(
pub flags SFlag: mode_t {
S_IFIFO,
S_IFCHR,
S_IFDIR,
S_IFBLK,
S_IFREG,
S_IFLNK,
S_IFSOCK,
S_IFMT,
}
);
bitflags! {
pub struct Mode: mode_t {
const S_IRWXU = libc::S_IRWXU;
const S_IRUSR = libc::S_IRUSR;
const S_IWUSR = libc::S_IWUSR;
const S_IXUSR = libc::S_IXUSR;
const S_IRWXG = libc::S_IRWXG;
const S_IRGRP = libc::S_IRGRP;
const S_IWGRP = libc::S_IWGRP;
const S_IXGRP = libc::S_IXGRP;
const S_IRWXO = libc::S_IRWXO;
const S_IROTH = libc::S_IROTH;
const S_IWOTH = libc::S_IWOTH;
const S_IXOTH = libc::S_IXOTH;
const S_ISUID = libc::S_ISUID as mode_t;
const S_ISGID = libc::S_ISGID as mode_t;
const S_ISVTX = libc::S_ISVTX as mode_t;
}
}
pub fn mknod<P: ?Sized + NixPath>(path: &P, kind: SFlag, perm: Mode, dev: dev_t) -> Result<()> {
let res = try!(path.with_nix_path(|cstr| {
unsafe {
ffi::mknod(cstr.as_ptr(), kind.bits | perm.bits() as mode_t, dev)
}
}));
Errno::result(res).map(drop)
}
#[cfg(target_os = "linux")]
pub fn major(dev: dev_t) -> u64 {
((dev >> 32) & 0xfffff000) |
((dev >> 8) & 0x00000fff)
}
#[cfg(target_os = "linux")]
pub fn minor(dev: dev_t) -> u64 {
((dev >> 12) & 0xffffff00) |
((dev ) & 0x000000ff)
}
#[cfg(target_os = "linux")]
pub fn makedev(major: u64, minor: u64) -> dev_t {
((major & 0xfffff000) << 32) |
((major & 0x00000fff) << 8) |
((minor & 0xffffff00) << 12) |
((minor & 0x000000ff) )
}
pub fn umask(mode: Mode) -> Mode {
let prev = unsafe { ffi::umask(mode.bits() as mode_t) };
Mode::from_bits(prev).expect("[BUG] umask returned invalid Mode")
}
pub fn stat<P: ?Sized + NixPath>(path: &P) -> Result<FileStat> {
let mut dst = unsafe { mem::uninitialized() };
let res = try!(path.with_nix_path(|cstr| {
unsafe {
ffi::stat(cstr.as_ptr(), &mut dst as *mut FileStat)
}
}));
try!(Errno::result(res));
Ok(dst)
}
pub fn lstat<P: ?Sized + NixPath>(path: &P) -> Result<FileStat> {
let mut dst = unsafe { mem::uninitialized() };
let res = try!(path.with_nix_path(|cstr| {
unsafe {
ffi::lstat(cstr.as_ptr(), &mut dst as *mut FileStat)
}
}));
try!(Errno::result(res));
Ok(dst)
}
pub fn fstat(fd: RawFd) -> Result<FileStat> {
let mut dst = unsafe { mem::uninitialized() };
let res = unsafe { ffi::fstat(fd, &mut dst as *mut FileStat) };
try!(Errno::result(res));
Ok(dst)
}
pub fn fstatat<P: ?Sized + NixPath>(dirfd: RawFd, pathname: &P, f: AtFlags) -> Result<FileStat> {
let mut dst = unsafe { mem::uninitialized() };
let res = try!(pathname.with_nix_path(|cstr| {
unsafe { libc::fstatat(dirfd, cstr.as_ptr(), &mut dst as *mut FileStat, f.bits() as libc::c_int) }
}));
try!(Errno::result(res));
Ok(dst)
}
|
