Implement mkfifo

Makefile

@@ -53,6 +53,7 @@ UNIX_PROGS := \
   id \
   kill \
   logname \
+  mkfifo \
   sync \
   tty \
   uname \

mkfifo/mkfifo.rs

@@ -0,0 +1,82 @@
+#![crate_id(name="mkfifo", vers="1.0.0", author="Michael Gehring")]
+#![feature(macro_rules)]
+
+/*
+ * This file is part of the uutils coreutils package.
+ *
+ * (c) Michael Gehring <mg@ebfe.org>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+extern crate getopts;
+extern crate libc;
+
+use std::num::FromStrRadix;
+use std::os;
+use libc::funcs::posix88::stat_::mkfifo;
+
+#[path = "../common/util.rs"]
+mod util;
+
+static NAME : &'static str = "mkfifo";
+static VERSION : &'static str = "1.0.0";
+
+#[allow(dead_code)]
+fn main() { os::set_exit_status(uumain(os::args())); }
+
+pub fn uumain(args: Vec<String>) -> int {
+    let opts = [
+        getopts::optopt("m", "mode", "file permissions for the fifo", "(default 0666)"),
+        getopts::optflag("h", "help", "display this help and exit"),
+        getopts::optflag("V", "version", "output version information and exit"),
+    ];
+
+    let matches = match getopts::getopts(args.tail(), opts) {
+        Ok(m) => m,
+        Err(err) => fail!("{}", err),
+    };
+
+    if matches.opt_present("version") {
+        println!("{} {}", NAME, VERSION);
+        return 0;
+    }
+
+    if matches.opt_present("help") || matches.free.is_empty() {
+        println!("{} {}", NAME, VERSION);
+        println!("");
+        println!("Usage:");
+        println!("  {} [OPTIONS] NAME...", NAME);
+        println!("");
+        print!("{}", getopts::usage("Create a FIFO with the given name.", opts.as_slice()).as_slice());
+        if matches.free.is_empty() {
+            return 1;
+        }
+        return 0;
+    }
+
+    let mode = match matches.opt_str("m") {
+        Some(m) => match FromStrRadix::from_str_radix(m.as_slice(), 8) {
+            Some(m) => m,
+            None => {
+                show_error!("invalid mode");
+                return 1;
+            }
+        },
+        None => 0o666,
+    };
+
+    let mut exit_status = 0;
+    for f in matches.free.iter() {
+        f.with_c_str(|name| {
+            let err = unsafe { mkfifo(name, mode) };
+            if err == -1 {
+                show_error!("creating '{}': {}", f, os::error_string(os::errno() as uint));
+                exit_status = 1;
+            }
+        });
+    }
+
+    exit_status
+}

uutils/uutils.rs

@@ -34,6 +34,7 @@ extern crate kill;
 extern crate logname;
 extern crate md5sum;
 extern crate mkdir;
+extern crate mkfifo;
 extern crate nl;
 extern crate paste;
 extern crate printenv;
@@ -94,6 +95,7 @@ fn util_map() -> HashMap<&str, fn(Vec<String>) -> int> {
     map.insert("logname", logname::uumain);
     map.insert("md5sum", md5sum::uumain);
     map.insert("mkdir", mkdir::uumain);
+    map.insert("mkfifo", mkfifo::uumain);
     map.insert("nl", nl::uumain);
     map.insert("paste", paste::uumain);
     map.insert("printenv", printenv::uumain);