mirror of
https://github.com/uutils/coreutils
synced 2024-12-15 15:52:42 +00:00
105 lines
3.5 KiB
Rust
105 lines
3.5 KiB
Rust
#![crate_id(name="uname", version="1.0.0", author="joaoxsouls")]
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/*
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* This file is part of the uutils coreutils package.
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*
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* (c) Joao Oliveira <joaoxsouls@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/* last synced with: uname (GNU coreutils) 8.21 */
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#![allow(non_camel_case_types)]
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#![feature(macro_rules)]
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extern crate getopts;
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extern crate libc;
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use std::os;
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use std::mem::uninitialized;
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use std::io::print;
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use std::str::raw::from_c_str;
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use c_types::utsname;
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#[path = "../common/util.rs"] mod util;
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#[path = "../common/c_types.rs"] mod c_types;
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struct utsrust {
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sysname: String,
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nodename: String,
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release: String,
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version: String,
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machine: String
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}
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extern {
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fn uname(uts: *mut utsname);
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}
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unsafe fn getuname() -> utsrust {
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let mut uts: utsname = uninitialized();
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uname(&mut uts);
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utsrust {
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sysname: from_c_str(uts.sysname.as_ptr()), nodename: from_c_str(uts.nodename.as_ptr()),
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release: from_c_str(uts.release.as_ptr()), version: from_c_str(uts.version.as_ptr()),
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machine: from_c_str(uts.machine.as_ptr())
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}
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}
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static NAME: &'static str = "uname";
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fn main() {
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let args = os::args();
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let program = args.get(0).as_slice();
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let opts = ~[
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getopts::optflag("h", "help", "display this help and exit"),
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getopts::optflag("a", "all", "Behave as though all of the options -mnrsv were specified."),
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getopts::optflag("m", "machine", "print the machine hardware name."),
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getopts::optflag("n", "nodename", "print the nodename (the nodename may be a name that the system is known by to a communications network)."),
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getopts::optflag("p", "processor", "print the machine processor architecture name."),
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getopts::optflag("r", "release", "print the operating system release."),
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getopts::optflag("s", "sysname", "print the operating system name."),
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getopts::optflag("v", "version", "print the operating system version."),
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];
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let matches = match getopts::getopts(args.tail(), opts) {
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Ok(m) => m,
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Err(f) => crash!(1, "{}", f.to_err_msg()),
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};
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if matches.opt_present("help") {
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println!("uname 1.0.0");
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println!("");
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println!("Usage:");
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println!(" {:s}", program);
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println!("");
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print(getopts::usage("The uname utility writes symbols representing one or more system characteristics to the standard output.", opts).as_slice());
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return;
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}
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let uname = unsafe { getuname() };
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let mut output = String::new();
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if matches.opt_present("sysname") || matches.opt_present("all")
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|| !matches.opts_present(["nodename".to_string(), "release".to_string(), "version".to_string(), "machine".to_string()]) {
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output.push_str(uname.sysname.as_slice());
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output.push_str(" ");
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}
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if matches.opt_present("nodename") || matches.opt_present("all") {
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output.push_str(uname.nodename.as_slice());
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output.push_str(" ");
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}
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if matches.opt_present("release") || matches.opt_present("all") {
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output.push_str(uname.release.as_slice());
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output.push_str(" ");
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}
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if matches.opt_present("version") || matches.opt_present("all") {
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output.push_str(uname.version.as_slice());
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output.push_str(" ");
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}
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if matches.opt_present("machine") || matches.opt_present("all") {
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output.push_str(uname.machine.as_slice());
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output.push_str(" ");
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}
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println!("{}", output.as_slice().trim_left())
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}
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