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|
pub use libc::dev_t;
pub use libc::stat as FileStat;
use {Result, NixPath};
use errno::Errno;
use fcntl::AtFlags;
use libc::{self, mode_t};
use std::mem;
use std::os::unix::io::RawFd;
libc_bitflags!(
pub struct SFlag: mode_t {
S_IFIFO;
S_IFCHR;
S_IFDIR;
S_IFBLK;
S_IFREG;
S_IFLNK;
S_IFSOCK;
S_IFMT;
}
);
libc_bitflags! {
pub struct Mode: mode_t {
S_IRWXU;
S_IRUSR;
S_IWUSR;
S_IXUSR;
S_IRWXG;
S_IRGRP;
S_IWGRP;
S_IXGRP;
S_IRWXO;
S_IROTH;
S_IWOTH;
S_IXOTH;
S_ISUID as mode_t;
S_ISGID as mode_t;
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 {
libc::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) & 0xffff_f000) |
((dev >> 8) & 0x0000_0fff)
}
#[cfg(target_os = "linux")]
pub fn minor(dev: dev_t) -> u64 {
((dev >> 12) & 0xffff_ff00) |
((dev ) & 0x0000_00ff)
}
#[cfg(target_os = "linux")]
pub fn makedev(major: u64, minor: u64) -> dev_t {
((major & 0xffff_f000) << 32) |
((major & 0x0000_0fff) << 8) |
((minor & 0xffff_ff00) << 12) |
(minor & 0x0000_00ff)
}
pub fn umask(mode: Mode) -> Mode {
let prev = unsafe { libc::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 {
libc::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 {
libc::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 { libc::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)
}
|
