2016-06-01 01:44:10 +00:00
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#![crate_name = "uu_stat"]
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// This file is part of the uutils coreutils package.
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//
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// (c) Jian Zeng <anonymousknight96@gmail.com>
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//
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// For the full copyright and license information, please view the LICENSE file
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// that was distributed with this source code.
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//
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extern crate users;
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extern crate getopts;
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use getopts::Options;
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#[macro_use]
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mod fsext;
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use fsext::*;
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#[macro_use]
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extern crate uucore;
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use std::{fs, iter, cmp};
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2016-06-01 06:47:37 +00:00
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use std::fs::File;
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use std::io::{Write, BufReader, BufRead};
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2016-06-01 01:44:10 +00:00
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use std::borrow::Cow;
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use std::os::unix::fs::{FileTypeExt, MetadataExt};
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2016-06-01 06:47:37 +00:00
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use std::path::Path;
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use std::convert::AsRef;
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2016-06-01 01:44:10 +00:00
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#[cfg(test)]
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mod test_stat;
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macro_rules! check_bound {
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($str: ident, $bound:expr, $beg: expr, $end: expr) => (
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if $end >= $bound {
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return Err(format!("‘{}’: invalid directive", &$str[$beg..$end]));
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}
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)
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}
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macro_rules! fill_string {
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($str: ident, $c: expr, $cnt: expr) => (
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iter::repeat($c).take($cnt).map(|c| $str.push(c)).all(|_| true)
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)
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}
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macro_rules! extend_digits {
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($str: ident, $min: expr) => (
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if $min > $str.len() {
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let mut pad = String::with_capacity($min);
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fill_string!(pad, '0', $min - $str.len());
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pad.push_str($str);
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pad.into()
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} else {
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$str.into()
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}
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)
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}
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macro_rules! pad_and_print {
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($result: ident, $str: ident, $left: expr, $width: expr, $padding: expr) => (
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if $str.len() < $width {
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if $left {
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$result.push_str($str.as_ref());
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fill_string!($result, $padding, $width - $str.len());
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} else {
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fill_string!($result, $padding, $width - $str.len());
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$result.push_str($str.as_ref());
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}
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} else {
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$result.push_str($str.as_ref());
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}
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print!("{}", $result);
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)
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}
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macro_rules! print_adjusted {
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2016-06-01 09:40:16 +00:00
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($str: ident, $left: expr, $width: expr, $padding: expr) => ({
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2016-06-01 01:44:10 +00:00
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let field_width = cmp::max($width, $str.len());
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let mut result = String::with_capacity(field_width);
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pad_and_print!(result, $str, $left, field_width, $padding);
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2016-06-01 09:40:16 +00:00
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});
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($str: ident, $left: expr, $need_prefix: expr, $prefix: expr, $width: expr, $padding: expr) => ({
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2016-06-01 01:44:10 +00:00
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let mut field_width = cmp::max($width, $str.len());
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let mut result = String::with_capacity(field_width + $prefix.len());
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if $need_prefix {
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result.push_str($prefix);
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field_width -= $prefix.len();
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}
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pad_and_print!(result, $str, $left, field_width, $padding);
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2016-06-01 09:40:16 +00:00
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})
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2016-06-01 01:44:10 +00:00
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}
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static NAME: &'static str = "stat";
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static VERSION: &'static str = env!("CARGO_PKG_VERSION");
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2016-06-01 06:47:37 +00:00
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const MOUNT_INFO: &'static str = "/etc/mtab";
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pub const F_ALTER: u8 = 1;
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pub const F_ZERO: u8 = 1 << 1;
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pub const F_LEFT: u8 = 1 << 2;
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pub const F_SPACE: u8 = 1 << 3;
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pub const F_SIGN: u8 = 1 << 4;
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2016-06-01 01:44:10 +00:00
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// unused at present
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2016-06-01 06:47:37 +00:00
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pub const F_GROUP: u8 = 1 << 5;
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2016-06-01 01:44:10 +00:00
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#[derive(Debug, PartialEq)]
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pub enum OutputType {
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Str,
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Integer,
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Unsigned,
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UnsignedHex,
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UnsignedOct,
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Unknown,
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}
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#[derive(Debug, PartialEq)]
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pub enum Token {
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Char(char),
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Directive {
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flag: u8,
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width: usize,
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precision: i32,
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format: char,
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},
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}
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2016-06-01 09:40:16 +00:00
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pub trait ScanUtil {
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2016-06-01 01:44:10 +00:00
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fn scan_num<F>(&self) -> Option<(F, usize)> where F: std::str::FromStr;
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2016-06-01 09:40:16 +00:00
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fn scan_char(&self, radix: u32) -> Option<(char, usize)>;
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2016-06-01 01:44:10 +00:00
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}
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2016-06-01 09:40:16 +00:00
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impl ScanUtil for str {
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2016-06-01 01:44:10 +00:00
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fn scan_num<F>(&self) -> Option<(F, usize)>
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where F: std::str::FromStr
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{
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let mut chars = self.chars();
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let mut i = 0;
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2016-06-01 09:40:16 +00:00
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if let Some(c) = chars.next() {
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match c {
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'-' | '+' | '0' ... '9' => i += 1,
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_ => return None,
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}
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} else {
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return None;
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}
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2016-06-01 01:44:10 +00:00
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while let Some(c) = chars.next() {
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match c {
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2016-06-01 09:40:16 +00:00
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'0'...'9' => i += 1,
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2016-06-01 01:44:10 +00:00
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_ => break,
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}
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}
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if i > 0 {
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F::from_str(&self[..i]).ok().map(|x| (x, i))
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} else {
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None
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}
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}
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2016-06-01 09:40:16 +00:00
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fn scan_char(&self, radix: u32) -> Option<(char, usize)> {
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let mut chars = self.chars();
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let mut i = 0;
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let count = match radix {
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8 => 3_usize,
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16 => 2,
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_ => return None,
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};
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let mut res = 0_u32;
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while i < count {
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if let Some(c) = chars.next() {
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match c.to_digit(radix) {
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Some(digit) => {
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let tmp = res * radix + digit;
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if tmp < 256 {
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res = tmp;
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} else {
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break;
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}
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}
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None => break,
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}
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} else {
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break;
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}
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i += 1;
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}
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if i > 0 {
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Some((res as u8 as char, i))
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} else {
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None
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}
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}
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2016-06-01 01:44:10 +00:00
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}
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pub struct Stater {
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follow: bool,
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showfs: bool,
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from_user: bool,
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files: Vec<String>,
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2016-06-01 06:47:37 +00:00
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mount_list: Vec<String>,
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2016-06-01 01:44:10 +00:00
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default_tokens: Vec<Token>,
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default_dev_tokens: Vec<Token>,
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}
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fn print_it(arg: &str, otype: OutputType, flag: u8, width: usize, precision: i32) {
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// If the precision is given as just '.', the precision is taken to be zero.
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// A negative precision is taken as if the precision were omitted.
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// This gives the minimum number of digits to appear for d, i, o, u, x, and X conversions,
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// the maximum number of characters to be printed from a string for s and S conversions.
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// #
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// The value should be converted to an "alternate form".
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// For o conversions, the first character of the output string is made zero (by prefixing a 0 if it was not zero already).
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// For x and X conversions, a nonzero result has the string "0x" (or "0X" for X conversions) prepended to it.
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// 0
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// The value should be zero padded.
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// For d, i, o, u, x, X, a, A, e, E, f, F, g, and G conversions, the converted value is padded on the left with zeros rather than blanks.
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// If the 0 and - flags both appear, the 0 flag is ignored.
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// If a precision is given with a numeric conversion (d, i, o, u, x, and X), the 0 flag is ignored.
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// For other conversions, the behavior is undefined.
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// -
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// The converted value is to be left adjusted on the field boundary. (The default is right justification.)
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// The converted value is padded on the right with blanks, rather than on the left with blanks or zeros.
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// A - overrides a 0 if both are given.
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// ' ' (a space)
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// A blank should be left before a positive number (or empty string) produced by a signed conversion.
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// +
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// A sign (+ or -) should always be placed before a number produced by a signed conversion.
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// By default, a sign is used only for negative numbers.
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// A + overrides a space if both are used.
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if otype == OutputType::Unknown {
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return print!("?");
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}
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let left_align = has!(flag, F_LEFT);
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let padding_char = if has!(flag, F_ZERO) && !left_align && precision == -1 {
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'0'
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} else {
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' '
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};
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let has_sign = has!(flag, F_SIGN) || has!(flag, F_SPACE);
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let should_alter = has!(flag, F_ALTER);
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let prefix = match otype {
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OutputType::UnsignedOct => "0",
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OutputType::UnsignedHex => "0x",
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OutputType::Integer => {
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if has!(flag, F_SIGN) {
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"+"
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} else {
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" "
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}
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}
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_ => "",
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};
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match otype {
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OutputType::Str => {
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let limit = cmp::min(precision, arg.len() as i32);
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let s: &str = if limit >= 0 {
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&arg[..limit as usize]
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} else {
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arg
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};
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print_adjusted!(s, left_align, width, ' ');
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}
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OutputType::Integer => {
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let min_digits = cmp::max(precision, arg.len() as i32) as usize;
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let extended: Cow<str> = extend_digits!(arg, min_digits);
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print_adjusted!(extended, left_align, has_sign, prefix, width, padding_char);
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}
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OutputType::Unsigned => {
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let min_digits = cmp::max(precision, arg.len() as i32) as usize;
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let extended: Cow<str> = extend_digits!(arg, min_digits);
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print_adjusted!(extended, left_align, width, padding_char);
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}
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OutputType::UnsignedOct => {
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let min_digits = cmp::max(precision, arg.len() as i32) as usize;
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let extended: Cow<str> = extend_digits!(arg, min_digits);
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print_adjusted!(extended,
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left_align,
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should_alter,
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prefix,
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width,
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padding_char);
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}
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OutputType::UnsignedHex => {
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let min_digits = cmp::max(precision, arg.len() as i32) as usize;
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let extended: Cow<str> = extend_digits!(arg, min_digits);
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print_adjusted!(extended,
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left_align,
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should_alter,
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prefix,
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width,
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padding_char);
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}
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_ => unreachable!(),
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}
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}
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impl Stater {
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pub fn generate_tokens(fmtstr: &str, use_printf: bool) -> Result<Vec<Token>, String> {
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let mut tokens = Vec::new();
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let bound = fmtstr.len();
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let chars = fmtstr.chars().collect::<Vec<char>>();
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let mut i = 0_usize;
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while i < bound {
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|
|
|
|
|
|
|
|
|
match chars[i] {
|
|
|
|
|
'%' => {
|
|
|
|
|
let old = i;
|
|
|
|
|
|
|
|
|
|
i += 1;
|
|
|
|
|
if i >= bound {
|
|
|
|
|
tokens.push(Token::Char('%'));
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
if chars[i] == '%' {
|
|
|
|
|
tokens.push(Token::Char('%'));
|
|
|
|
|
i += 1;
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
let mut flag: u8 = 0;
|
|
|
|
|
|
|
|
|
|
while i < bound {
|
|
|
|
|
match chars[i] {
|
|
|
|
|
'#' => flag |= F_ALTER,
|
|
|
|
|
'0' => flag |= F_ZERO,
|
|
|
|
|
'-' => flag |= F_LEFT,
|
|
|
|
|
' ' => flag |= F_SPACE,
|
|
|
|
|
'+' => flag |= F_SIGN,
|
2016-06-01 06:47:37 +00:00
|
|
|
|
// '\'' => flag |= F_GROUP,
|
2016-06-01 01:44:10 +00:00
|
|
|
|
'\'' => unimplemented!(),
|
|
|
|
|
'I' => unimplemented!(),
|
|
|
|
|
_ => break,
|
|
|
|
|
}
|
|
|
|
|
i += 1;
|
|
|
|
|
}
|
|
|
|
|
check_bound!(fmtstr, bound, old, i);
|
|
|
|
|
|
|
|
|
|
let mut width = 0_usize;
|
|
|
|
|
let mut precision = -1_i32;
|
|
|
|
|
let mut j = i;
|
|
|
|
|
|
|
|
|
|
match fmtstr[j..].scan_num::<usize>() {
|
|
|
|
|
Some((field_width, offset)) => {
|
|
|
|
|
width = field_width;
|
|
|
|
|
j += offset;
|
|
|
|
|
}
|
|
|
|
|
None => (),
|
|
|
|
|
}
|
|
|
|
|
check_bound!(fmtstr, bound, old, j);
|
|
|
|
|
|
|
|
|
|
if chars[j] == '.' {
|
|
|
|
|
j += 1;
|
|
|
|
|
check_bound!(fmtstr, bound, old, j);
|
|
|
|
|
|
|
|
|
|
match fmtstr[j..].scan_num::<i32>() {
|
|
|
|
|
Some((prec, offset)) => {
|
|
|
|
|
if prec >= 0 {
|
|
|
|
|
precision = prec;
|
|
|
|
|
}
|
|
|
|
|
j += offset;
|
|
|
|
|
}
|
|
|
|
|
None => precision = 0,
|
|
|
|
|
}
|
|
|
|
|
check_bound!(fmtstr, bound, old, j);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
i = j;
|
|
|
|
|
tokens.push(Token::Directive {
|
|
|
|
|
width: width,
|
|
|
|
|
flag: flag,
|
|
|
|
|
precision: precision,
|
|
|
|
|
format: chars[i],
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
'\\' => {
|
|
|
|
|
if !use_printf {
|
|
|
|
|
tokens.push(Token::Char('\\'));
|
|
|
|
|
} else {
|
|
|
|
|
i += 1;
|
|
|
|
|
if i >= bound {
|
|
|
|
|
show_warning!("backslash at end of format");
|
|
|
|
|
tokens.push(Token::Char('\\'));
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
match chars[i] {
|
2016-06-01 09:40:16 +00:00
|
|
|
|
'x' if i + 1 < bound => {
|
|
|
|
|
if let Some((c, offset)) = fmtstr[i + 1..].scan_char(16) {
|
|
|
|
|
tokens.push(Token::Char(c));
|
|
|
|
|
i += offset;
|
|
|
|
|
} else {
|
|
|
|
|
show_warning!("unrecognized escape '\\x'");
|
|
|
|
|
tokens.push(Token::Char('x'));
|
|
|
|
|
}
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
|
|
|
|
'0'...'7' => {
|
2016-06-01 09:40:16 +00:00
|
|
|
|
let (c, offset) = fmtstr[i..].scan_char(8).unwrap();
|
|
|
|
|
tokens.push(Token::Char(c));
|
|
|
|
|
i += offset - 1;
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
|
|
|
|
'"' => tokens.push(Token::Char('"')),
|
|
|
|
|
'\\' => tokens.push(Token::Char('\\')),
|
|
|
|
|
'a' => tokens.push(Token::Char('\x07')),
|
|
|
|
|
'b' => tokens.push(Token::Char('\x08')),
|
|
|
|
|
'e' => tokens.push(Token::Char('\x1B')),
|
2016-06-01 09:40:16 +00:00
|
|
|
|
'f' => tokens.push(Token::Char('\x0C')),
|
2016-06-01 01:44:10 +00:00
|
|
|
|
'n' => tokens.push(Token::Char('\n')),
|
|
|
|
|
'r' => tokens.push(Token::Char('\r')),
|
2016-06-01 09:40:16 +00:00
|
|
|
|
'v' => tokens.push(Token::Char('\x0B')),
|
2016-06-01 01:44:10 +00:00
|
|
|
|
c => {
|
|
|
|
|
show_warning!("unrecognized escape '\\{}'", c);
|
|
|
|
|
tokens.push(Token::Char(c));
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
c => tokens.push(Token::Char(c)),
|
|
|
|
|
}
|
|
|
|
|
i += 1;
|
|
|
|
|
}
|
|
|
|
|
if !use_printf && !fmtstr.ends_with('\n') {
|
|
|
|
|
tokens.push(Token::Char('\n'));
|
|
|
|
|
}
|
|
|
|
|
Ok(tokens)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fn new(matches: getopts::Matches) -> Result<Stater, String> {
|
|
|
|
|
let fmtstr = if matches.opt_present("printf") {
|
|
|
|
|
matches.opt_str("printf").expect("Invalid format string")
|
|
|
|
|
} else {
|
|
|
|
|
matches.opt_str("format").unwrap_or("".to_owned())
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
let use_printf = matches.opt_present("printf");
|
|
|
|
|
let terse = matches.opt_present("terse");
|
|
|
|
|
let showfs = matches.opt_present("file-system");
|
|
|
|
|
|
|
|
|
|
let default_tokens = if fmtstr.is_empty() {
|
|
|
|
|
Stater::generate_tokens(&Stater::default_fmt(showfs, terse, false), use_printf).unwrap()
|
|
|
|
|
} else {
|
2016-06-01 09:40:16 +00:00
|
|
|
|
try!(Stater::generate_tokens(&fmtstr, use_printf))
|
2016-06-01 01:44:10 +00:00
|
|
|
|
};
|
|
|
|
|
let default_dev_tokens = Stater::generate_tokens(&Stater::default_fmt(showfs, terse, true),
|
|
|
|
|
use_printf)
|
|
|
|
|
.unwrap();
|
|
|
|
|
|
2016-06-01 06:47:37 +00:00
|
|
|
|
let reader = BufReader::new(File::open(MOUNT_INFO).expect("Failed to read /etc/mtab"));
|
|
|
|
|
let mut mount_list = reader.lines()
|
|
|
|
|
.filter_map(|s| s.ok())
|
|
|
|
|
.filter_map(|line| {
|
|
|
|
|
line.split_whitespace().nth(1).map(|s| s.to_owned())
|
|
|
|
|
})
|
|
|
|
|
.collect::<Vec<String>>();
|
2016-06-01 09:40:16 +00:00
|
|
|
|
// Reverse sort. The longer comes first.
|
2016-06-01 06:47:37 +00:00
|
|
|
|
mount_list.sort_by(|a, b| b.cmp(a));
|
|
|
|
|
|
2016-06-01 01:44:10 +00:00
|
|
|
|
Ok(Stater {
|
|
|
|
|
follow: matches.opt_present("dereference"),
|
|
|
|
|
showfs: showfs,
|
|
|
|
|
from_user: !fmtstr.is_empty(),
|
|
|
|
|
files: matches.free,
|
|
|
|
|
default_tokens: default_tokens,
|
|
|
|
|
default_dev_tokens: default_dev_tokens,
|
2016-06-01 06:47:37 +00:00
|
|
|
|
mount_list: mount_list,
|
2016-06-01 01:44:10 +00:00
|
|
|
|
})
|
|
|
|
|
}
|
|
|
|
|
|
2016-06-01 06:47:37 +00:00
|
|
|
|
fn find_mount_point<P: AsRef<Path>>(&self, p: P) -> Option<String> {
|
|
|
|
|
let path = match p.as_ref().canonicalize() {
|
|
|
|
|
Ok(s) => s,
|
|
|
|
|
Err(_) => return None,
|
|
|
|
|
};
|
|
|
|
|
for root in (&self.mount_list).into_iter() {
|
|
|
|
|
if path.starts_with(root) {
|
|
|
|
|
return Some(root.clone());
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
None
|
|
|
|
|
}
|
|
|
|
|
|
2016-06-01 01:44:10 +00:00
|
|
|
|
fn exec(&self) -> i32 {
|
2016-06-01 06:47:37 +00:00
|
|
|
|
let mut ret = 0;
|
2016-06-01 01:44:10 +00:00
|
|
|
|
for f in &self.files {
|
2016-06-01 06:47:37 +00:00
|
|
|
|
ret |= self.do_stat(f.as_str());
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
2016-06-01 06:47:37 +00:00
|
|
|
|
ret
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
|
|
|
|
|
2016-06-01 06:47:37 +00:00
|
|
|
|
fn do_stat(&self, file: &str) -> i32 {
|
2016-06-01 01:44:10 +00:00
|
|
|
|
|
|
|
|
|
#[inline]
|
|
|
|
|
fn get_grp_name(gid: u32) -> String {
|
|
|
|
|
if let Some(g) = users::get_group_by_gid(gid) {
|
|
|
|
|
g.name().to_owned()
|
|
|
|
|
} else {
|
|
|
|
|
"UNKNOWN".to_owned()
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#[inline]
|
|
|
|
|
fn get_usr_name(uid: u32) -> String {
|
|
|
|
|
if let Some(g) = users::get_user_by_uid(uid) {
|
|
|
|
|
g.name().to_owned()
|
|
|
|
|
} else {
|
|
|
|
|
"UNKNOWN".to_owned()
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if !self.showfs {
|
|
|
|
|
let result = if self.follow {
|
|
|
|
|
fs::metadata(file)
|
|
|
|
|
} else {
|
|
|
|
|
fs::symlink_metadata(file)
|
|
|
|
|
};
|
|
|
|
|
match result {
|
|
|
|
|
Ok(meta) => {
|
|
|
|
|
let ftype = meta.file_type();
|
|
|
|
|
let tokens = if self.from_user ||
|
|
|
|
|
!(ftype.is_char_device() || ftype.is_block_device()) {
|
|
|
|
|
&self.default_tokens
|
|
|
|
|
} else {
|
|
|
|
|
&self.default_dev_tokens
|
|
|
|
|
};
|
|
|
|
|
let is_symlink = ftype.is_symlink();
|
|
|
|
|
|
|
|
|
|
for t in tokens.into_iter() {
|
|
|
|
|
match t {
|
|
|
|
|
&Token::Char(c) => print!("{}", c),
|
|
|
|
|
&Token::Directive { flag, width, precision, format } => {
|
|
|
|
|
|
|
|
|
|
let arg: String;
|
|
|
|
|
let otype: OutputType;
|
|
|
|
|
|
|
|
|
|
match format {
|
|
|
|
|
// unsigned oct
|
|
|
|
|
'a' => {
|
|
|
|
|
arg = format!("{:o}", 0o7777 & meta.mode());
|
|
|
|
|
otype = OutputType::UnsignedOct;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'A' => {
|
|
|
|
|
arg = pretty_access(meta.mode());
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'b' => {
|
|
|
|
|
arg = format!("{}", meta.blocks());
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// unsigned
|
|
|
|
|
// FIXME: blocksize differs on various platform
|
|
|
|
|
// See coreutils/gnulib/lib/stat-size.h ST_NBLOCKSIZE
|
|
|
|
|
'B' => {
|
|
|
|
|
// the size in bytes of each block reported by %b
|
|
|
|
|
arg = format!("{}", 512);
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// unsigned
|
|
|
|
|
'd' => {
|
|
|
|
|
arg = format!("{}", meta.dev());
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// unsigned hex
|
|
|
|
|
'D' => {
|
|
|
|
|
arg = format!("{:x}", meta.dev());
|
|
|
|
|
otype = OutputType::UnsignedHex;
|
|
|
|
|
}
|
|
|
|
|
// unsigned hex
|
|
|
|
|
'f' => {
|
|
|
|
|
arg = format!("{:x}", meta.mode());
|
|
|
|
|
otype = OutputType::UnsignedHex;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'F' => {
|
|
|
|
|
arg = pretty_filetype(meta.mode(), meta.len()).to_owned();
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'g' => {
|
|
|
|
|
arg = format!("{}", meta.gid());
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'G' => {
|
|
|
|
|
arg = get_grp_name(meta.gid());
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'h' => {
|
|
|
|
|
arg = format!("{}", meta.nlink());
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'i' => {
|
|
|
|
|
arg = format!("{}", meta.ino());
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
|
2016-06-01 06:47:37 +00:00
|
|
|
|
// mount point
|
2016-06-01 01:44:10 +00:00
|
|
|
|
'm' => {
|
2016-06-01 06:47:37 +00:00
|
|
|
|
arg = self.find_mount_point(file).unwrap();
|
2016-06-01 01:44:10 +00:00
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// string
|
|
|
|
|
'n' => {
|
|
|
|
|
arg = file.to_owned();
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'N' => {
|
|
|
|
|
if is_symlink {
|
|
|
|
|
arg = format!("'{}' -> '{}'",
|
|
|
|
|
file,
|
|
|
|
|
fs::read_link(file)
|
|
|
|
|
.expect("Invalid symlink")
|
|
|
|
|
.to_string_lossy());
|
|
|
|
|
} else {
|
|
|
|
|
arg = format!("'{}'", file);
|
|
|
|
|
}
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'o' => {
|
|
|
|
|
arg = format!("{}", meta.blksize());
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// int
|
|
|
|
|
's' => {
|
|
|
|
|
arg = format!("{}", meta.len());
|
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
// unsigned hex
|
|
|
|
|
't' => {
|
|
|
|
|
arg = format!("{:x}", meta.rdev() >> 8);
|
|
|
|
|
otype = OutputType::UnsignedHex;
|
|
|
|
|
}
|
|
|
|
|
// unsigned hex
|
|
|
|
|
'T' => {
|
|
|
|
|
arg = format!("{:x}", meta.rdev() & 0xff);
|
|
|
|
|
otype = OutputType::UnsignedHex;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'u' => {
|
|
|
|
|
arg = format!("{}", meta.uid());
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'U' => {
|
|
|
|
|
arg = get_usr_name(meta.uid());
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// string
|
|
|
|
|
'w' => {
|
|
|
|
|
// time of file birth, human-readable; - if unknown
|
2016-06-01 09:40:16 +00:00
|
|
|
|
arg = if let Some(elapsed) = meta.created()
|
|
|
|
|
.ok()
|
|
|
|
|
.map(|t| {
|
|
|
|
|
t.elapsed().unwrap()
|
|
|
|
|
}) {
|
|
|
|
|
pretty_time(elapsed.as_secs() as i64,
|
|
|
|
|
elapsed.subsec_nanos() as i64)
|
|
|
|
|
} else {
|
|
|
|
|
"-".to_owned()
|
|
|
|
|
};
|
2016-06-01 01:44:10 +00:00
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// int
|
|
|
|
|
'W' => {
|
|
|
|
|
// time of file birth, seconds since Epoch; 0 if unknown
|
2016-06-01 09:40:16 +00:00
|
|
|
|
arg = if let Some(elapsed) = meta.created()
|
|
|
|
|
.ok()
|
|
|
|
|
.map(|t| {
|
|
|
|
|
t.elapsed().unwrap()
|
|
|
|
|
}) {
|
|
|
|
|
format!("{}", elapsed.as_secs())
|
|
|
|
|
} else {
|
|
|
|
|
"0".to_owned()
|
|
|
|
|
};
|
2016-06-01 01:44:10 +00:00
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// string
|
|
|
|
|
'x' => {
|
|
|
|
|
arg = pretty_time(meta.atime(), meta.atime_nsec());
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// int
|
|
|
|
|
'X' => {
|
|
|
|
|
arg = format!("{}", meta.atime());
|
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'y' => {
|
|
|
|
|
arg = pretty_time(meta.mtime(), meta.mtime_nsec());
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// int
|
|
|
|
|
'Y' => {
|
|
|
|
|
arg = format!("{}", meta.mtime());
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'z' => {
|
|
|
|
|
arg = pretty_time(meta.ctime(), meta.ctime_nsec());
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// int
|
|
|
|
|
'Z' => {
|
|
|
|
|
arg = format!("{}", meta.ctime());
|
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
_ => {
|
|
|
|
|
arg = "?".to_owned();
|
|
|
|
|
otype = OutputType::Unknown;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
print_it(&arg, otype, flag, width, precision);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
Err(e) => {
|
|
|
|
|
show_info!("cannot stat '{}': {}", file, e);
|
2016-06-01 06:47:37 +00:00
|
|
|
|
return 1;
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
match statfs(file) {
|
|
|
|
|
Ok(data) => {
|
|
|
|
|
let tokens = &self.default_tokens;
|
|
|
|
|
|
|
|
|
|
for t in tokens.into_iter() {
|
|
|
|
|
match t {
|
|
|
|
|
&Token::Char(c) => print!("{}", c),
|
|
|
|
|
&Token::Directive { flag, width, precision, format } => {
|
|
|
|
|
|
|
|
|
|
let arg: String;
|
|
|
|
|
let otype: OutputType;
|
|
|
|
|
match format {
|
|
|
|
|
// int
|
|
|
|
|
'a' => {
|
|
|
|
|
arg = format!("{}", data.f_bavail);
|
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
// int
|
|
|
|
|
'b' => {
|
|
|
|
|
arg = format!("{}", data.f_blocks);
|
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'c' => {
|
|
|
|
|
arg = format!("{}", data.f_files);
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// int
|
|
|
|
|
'd' => {
|
|
|
|
|
arg = format!("{}", data.f_ffree);
|
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
// int
|
|
|
|
|
'f' => {
|
|
|
|
|
arg = format!("{}", data.f_bfree);
|
|
|
|
|
otype = OutputType::Integer;
|
|
|
|
|
}
|
|
|
|
|
// hex unsigned
|
|
|
|
|
'i' => {
|
|
|
|
|
arg = format!("{:x}", data.f_fsid);
|
|
|
|
|
otype = OutputType::UnsignedHex;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'l' => {
|
|
|
|
|
arg = format!("{}", data.f_namelen);
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'n' => {
|
|
|
|
|
arg = file.to_owned();
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
's' => {
|
|
|
|
|
arg = format!("{}", data.f_bsize);
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// unsigned
|
|
|
|
|
'S' => {
|
|
|
|
|
arg = format!("{}", data.f_frsize);
|
|
|
|
|
otype = OutputType::Unsigned;
|
|
|
|
|
}
|
|
|
|
|
// hex unsigned
|
|
|
|
|
't' => {
|
|
|
|
|
arg = format!("{:x}", data.f_type);
|
|
|
|
|
otype = OutputType::UnsignedHex;
|
|
|
|
|
}
|
|
|
|
|
// string
|
|
|
|
|
'T' => {
|
|
|
|
|
arg = pretty_fstype(data.f_type).into_owned();
|
|
|
|
|
otype = OutputType::Str;
|
|
|
|
|
}
|
|
|
|
|
_ => {
|
|
|
|
|
arg = "?".to_owned();
|
|
|
|
|
otype = OutputType::Unknown;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
print_it(&arg, otype, flag, width, precision);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
Err(e) => {
|
|
|
|
|
show_info!("cannot stat '{}': {}", file, e);
|
2016-06-01 06:47:37 +00:00
|
|
|
|
return 1;
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
2016-06-01 06:47:37 +00:00
|
|
|
|
0
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// taken from coreutils/src/stat.c
|
|
|
|
|
fn default_fmt(showfs: bool, terse: bool, dev: bool) -> String {
|
|
|
|
|
|
|
|
|
|
// SELinux related format is *ignored*
|
|
|
|
|
|
|
|
|
|
let mut fmtstr = String::with_capacity(36);
|
|
|
|
|
if showfs {
|
|
|
|
|
if terse {
|
|
|
|
|
fmtstr.push_str("%n %i %l %t %s %S %b %f %a %c %d\n");
|
|
|
|
|
} else {
|
|
|
|
|
fmtstr.push_str(" File: \"%n\"\n ID: %-8i Namelen: %-7l Type: %T\nBlock \
|
|
|
|
|
size: %-10s Fundamental block size: %S\nBlocks: Total: %-10b \
|
|
|
|
|
Free: %-10f Available: %a\nInodes: Total: %-10c Free: %d\n");
|
|
|
|
|
}
|
|
|
|
|
} else if terse {
|
|
|
|
|
fmtstr.push_str("%n %s %b %f %u %g %D %i %h %t %T %X %Y %Z %W %o\n");
|
|
|
|
|
} else {
|
|
|
|
|
fmtstr.push_str(" File: %N\n Size: %-10s\tBlocks: %-10b IO Block: %-6o %F\n");
|
|
|
|
|
if dev {
|
|
|
|
|
fmtstr.push_str("Device: %Dh/%dd\tInode: %-10i Links: %-5h Device type: %t,%T\n");
|
|
|
|
|
} else {
|
|
|
|
|
fmtstr.push_str("Device: %Dh/%dd\tInode: %-10i Links: %h\n");
|
|
|
|
|
}
|
|
|
|
|
fmtstr.push_str("Access: (%04a/%10.10A) Uid: (%5u/%8U) Gid: (%5g/%8G)\n");
|
|
|
|
|
fmtstr.push_str("Access: %x\nModify: %y\nChange: %z\n Birth: %w\n");
|
|
|
|
|
}
|
|
|
|
|
fmtstr
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
pub fn uumain(args: Vec<String>) -> i32 {
|
|
|
|
|
let mut opts = Options::new();
|
|
|
|
|
|
|
|
|
|
opts.optflag("h", "help", "display this help and exit");
|
|
|
|
|
opts.optflag("", "version", "output version information and exit");
|
|
|
|
|
|
|
|
|
|
opts.optflag("L", "dereference", "follow links");
|
|
|
|
|
opts.optflag("f",
|
|
|
|
|
"file-system",
|
|
|
|
|
"display file system status instead of file status");
|
|
|
|
|
opts.optflag("t", "terse", "print the information in terse form");
|
|
|
|
|
|
|
|
|
|
// Omit the unused description as they are too long
|
|
|
|
|
opts.optopt("c", "format", "", "FORMAT");
|
|
|
|
|
opts.optopt("", "printf", "", "FORMAT");
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
let matches = match opts.parse(&args[1..]) {
|
|
|
|
|
Ok(m) => m,
|
|
|
|
|
Err(f) => {
|
|
|
|
|
disp_err!("{}", f);
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if matches.opt_present("help") {
|
|
|
|
|
return help();
|
|
|
|
|
} else if matches.opt_present("version") {
|
|
|
|
|
return version();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if matches.free.is_empty() {
|
|
|
|
|
disp_err!("missing operand");
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
match Stater::new(matches) {
|
|
|
|
|
Ok(stater) => stater.exec(),
|
|
|
|
|
Err(e) => {
|
|
|
|
|
show_info!("{}", e);
|
2016-06-01 06:47:37 +00:00
|
|
|
|
1
|
2016-06-01 01:44:10 +00:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fn version() -> i32 {
|
|
|
|
|
println!("{} {}", NAME, VERSION);
|
|
|
|
|
0
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fn help() -> i32 {
|
|
|
|
|
let msg = format!(r#"Usage: {} [OPTION]... FILE...
|
|
|
|
|
Display file or file system status.
|
|
|
|
|
|
|
|
|
|
Mandatory arguments to long options are mandatory for short options too.
|
|
|
|
|
-L, --dereference follow links
|
|
|
|
|
-f, --file-system display file system status instead of file status
|
|
|
|
|
-c --format=FORMAT use the specified FORMAT instead of the default;
|
|
|
|
|
output a newline after each use of FORMAT
|
|
|
|
|
--printf=FORMAT like --format, but interpret backslash escapes,
|
|
|
|
|
and do not output a mandatory trailing newline;
|
|
|
|
|
if you want a newline, include \n in FORMAT
|
|
|
|
|
-t, --terse print the information in terse form
|
|
|
|
|
--help display this help and exit
|
|
|
|
|
--version output version information and exit
|
|
|
|
|
|
|
|
|
|
The valid format sequences for files (without --file-system):
|
|
|
|
|
|
|
|
|
|
%a access rights in octal (note '#' and '0' printf flags)
|
|
|
|
|
%A access rights in human readable form
|
|
|
|
|
%b number of blocks allocated (see %B)
|
|
|
|
|
%B the size in bytes of each block reported by %b
|
|
|
|
|
%C SELinux security context string
|
|
|
|
|
%d device number in decimal
|
|
|
|
|
%D device number in hex
|
|
|
|
|
%f raw mode in hex
|
|
|
|
|
%F file type
|
|
|
|
|
%g group ID of owner
|
|
|
|
|
%G group name of owner
|
|
|
|
|
%h number of hard links
|
|
|
|
|
%i inode number
|
|
|
|
|
%m mount point
|
|
|
|
|
%n file name
|
|
|
|
|
%N quoted file name with dereference if symbolic link
|
|
|
|
|
%o optimal I/O transfer size hint
|
|
|
|
|
%s total size, in bytes
|
|
|
|
|
%t major device type in hex, for character/block device special files
|
|
|
|
|
%T minor device type in hex, for character/block device special files
|
|
|
|
|
%u user ID of owner
|
|
|
|
|
%U user name of owner
|
|
|
|
|
%w time of file birth, human-readable; - if unknown
|
|
|
|
|
%W time of file birth, seconds since Epoch; 0 if unknown
|
|
|
|
|
%x time of last access, human-readable
|
|
|
|
|
%X time of last access, seconds since Epoch
|
|
|
|
|
%y time of last data modification, human-readable
|
|
|
|
|
%Y time of last data modification, seconds since Epoch
|
|
|
|
|
%z time of last status change, human-readable
|
|
|
|
|
%Z time of last status change, seconds since Epoch
|
|
|
|
|
|
|
|
|
|
Valid format sequences for file systems:
|
|
|
|
|
|
|
|
|
|
%a free blocks available to non-superuser
|
|
|
|
|
%b total data blocks in file system
|
|
|
|
|
%c total file nodes in file system
|
|
|
|
|
%d free file nodes in file system
|
|
|
|
|
%f free blocks in file system
|
|
|
|
|
%i file system ID in hex
|
|
|
|
|
%l maximum length of filenames
|
|
|
|
|
%n file name
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%s block size (for faster transfers)
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%S fundamental block size (for block counts)
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%t file system type in hex
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%T file system type in human readable form
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NOTE: your shell may have its own version of stat, which usually supersedes
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the version described here. Please refer to your shell's documentation
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for details about the options it supports."#,
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NAME);
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println!("{}", msg);
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0
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|
}
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