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use std::path::{Path, PathBuf};
use std::process;
pub fn is_executable(mode: u32) -> bool {
const LIBC_PERMISSION_VALS: [libc::mode_t; 3] = [libc::S_IXUSR, libc::S_IXGRP, libc::S_IXOTH];
LIBC_PERMISSION_VALS.iter().any(|val| {
let val: u32 = (*val) as u32;
mode & val != 0
})
}
pub fn stringify_mode(mode: u32) -> String {
const LIBC_FILE_VALS: [(libc::mode_t, char); 7] = [
(libc::S_IFREG, '-'),
(libc::S_IFDIR, 'd'),
(libc::S_IFLNK, 'l'),
(libc::S_IFSOCK, 's'),
(libc::S_IFBLK, 'b'),
(libc::S_IFCHR, 'c'),
(libc::S_IFIFO, 'f'),
];
const LIBC_PERMISSION_VALS: [(libc::mode_t, char); 9] = [
(libc::S_IRUSR, 'r'),
(libc::S_IWUSR, 'w'),
(libc::S_IXUSR, 'x'),
(libc::S_IRGRP, 'r'),
(libc::S_IWGRP, 'w'),
(libc::S_IXGRP, 'x'),
(libc::S_IROTH, 'r'),
(libc::S_IWOTH, 'w'),
(libc::S_IXOTH, 'x'),
];
let mut mode_str: String = String::with_capacity(10);
let mode_shifted = mode >> 9;
for (val, ch) in LIBC_FILE_VALS.iter() {
let val: u32 = (*val >> 9) as u32;
if mode_shifted & val == mode_shifted {
mode_str.push(*ch);
break;
}
}
for (val, ch) in LIBC_PERMISSION_VALS.iter() {
let val: u32 = (*val) as u32;
if mode & val != 0 {
mode_str.push(*ch);
} else {
mode_str.push('-');
}
}
mode_str
}
pub fn set_mode(path: &Path, mode: u32) {
let os_path = path.as_os_str();
if let Some(s) = os_path.to_str() {
let svec: Vec<libc::c_char> = s.bytes().map(|ch| ch as libc::c_char).collect();
unsafe {
libc::chmod(svec.as_ptr(), mode as libc::mode_t);
}
}
}
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