reformat with rustfmt

rust/Cargo.lock

@@ -1,3 +1,5 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
 [[package]]
 name = "bitflags"
 version = "1.0.4"

rust/src/main.rs

@@ -1,70 +1,74 @@
 use std::env;
-use std::io::BufReader;
+use std::ffi::CString;
 use std::io::BufRead;
+use std::io::BufReader;
 use std::io::Error;
 use std::io::ErrorKind;
 use std::io::Write;
-use std::ffi::CString;
 
-static PROFILEPATH : &'static str ="/etc/qsni.d/";
-static NET_CLS_DIR : &'static str="/sys/fs/cgroup/net_cls/";
+static PROFILEPATH: &'static str = "/etc/qsni.d/";
+static NET_CLS_DIR: &'static str = "/sys/fs/cgroup/net_cls/";
 extern crate nix;
 
-
-fn ensure_outside_profile()
-{
-    let fp = std::fs::File::open("/proc/self/cgroup").expect("Error opening cgroups file of process");
+fn ensure_outside_profile() {
+    let fp =
+        std::fs::File::open("/proc/self/cgroup").expect("Error opening cgroups file of process");
     let bf = BufReader::new(fp);
     for line in bf.lines() {
         let currentline = line.expect("Error while reading line");
-        let splitted : Vec<&str> = currentline.split(':').collect();
+        let splitted: Vec<&str> = currentline.split(':').collect();
         if splitted.len() < 3 {
             panic!("Misformated line in cgroups file!");
-            }
-        if splitted[1] == "net_cls"  && splitted[2] != "/" {
-           panic!("already assigned to a net class, thus you can't use this binary to change that");
+        }
+        if splitted[1] == "net_cls" && splitted[2] != "/" {
+            panic!(
+                "already assigned to a net class, thus you can't use this binary to change that"
+            );
         }
     }
 }
 
-fn init_profile(profilepath : &str)
-{
-    use nix::unistd::*;
+fn init_profile(profilepath: &str) {
     use nix::sys::wait::*;
-    match fork()
-        {
-            Ok(ForkResult::Parent { child, .. }) => {
-               let waitresult =  waitpid(child, Some(WaitPidFlag::empty())).expect("waitpid failed");
-               match waitresult
-                   {
-                      WaitStatus::Exited(pid, code) =>
-                          {
-                              if code != 0
-                                  {
-                                      panic!("profile setup script failed");
-                                  }
-                          },
-                       _ => { },
-                   }
+    use nix::unistd::*;
+    match fork() {
+        Ok(ForkResult::Parent { child, .. }) => {
+            let waitresult = waitpid(child, Some(WaitPidFlag::empty())).expect("waitpid failed");
+            match waitresult {
+                WaitStatus::Exited(pid, code) => {
+                    if code != 0 {
+                        panic!("profile setup script failed");
+                    }
+                }
+                _ => {}
             }
-            Ok(ForkResult::Child) => {
-                unsafe { nix::libc::clearenv(); }
-                nix::unistd::execv(&CString::new(profilepath).unwrap(), &[CString::new(profilepath).unwrap()]).expect("Faileed execv");},
-            Err(_) => println!("Fork failed"),
         }
+        Ok(ForkResult::Child) => {
+            unsafe {
+                nix::libc::clearenv();
+            }
+            nix::unistd::execv(
+                &CString::new(profilepath).unwrap(),
+                &[CString::new(profilepath).unwrap()],
+            )
+            .expect("Faileed execv");
+        }
+        Err(_) => println!("Fork failed"),
+    }
 }
 
-fn assign_to_profile(profilename : &str)
-{
+fn assign_to_profile(profilename: &str) {
     let filename = NET_CLS_DIR.to_owned() + "/" + profilename + "/tasks";
-    let mut file = std::fs::OpenOptions::new().write(true).append(true).open(filename).expect("Failed to open net class file for writing");
+    let mut file = std::fs::OpenOptions::new()
+        .write(true)
+        .append(true)
+        .open(filename)
+        .expect("Failed to open net class file for writing");
     let mypid = nix::unistd::getpid().to_string();
     write!(file, "{}", mypid).expect("An error occured while writing the pid");
-
 }
 
-fn main()
-{
+fn main() {
     std::panic::set_hook(Box::new(|pi| {
         if let Some(s) = pi.payload().downcast_ref::<String>() {
             eprintln!("{}", s);
@@ -72,20 +76,20 @@ fn main()
         eprintln!("Details:");
         eprintln!("{}", pi);
     }));
-    let args : Vec<String> = std::env::args().collect();
+    let args: Vec<String> = std::env::args().collect();
     if args.len() < 3 {
         println!("usage: qsni profile command [arguments...]");
         std::process::exit(1);
-        }
+    }
     ensure_outside_profile();
 
-    let profilename : &str = &args[1];
+    let profilename: &str = &args[1];
 
     let profilefilepath = PROFILEPATH.to_owned() + profilename;
-    if ! std::path::Path::new(&profilefilepath).exists(){
-            eprintln!("The specified profile {} does not exist", profilename);
-            std::process::exit(1);
-        }
+    if !std::path::Path::new(&profilefilepath).exists() {
+        eprintln!("The specified profile {} does not exist", profilename);
+        std::process::exit(1);
+    }
 
     let currentuid = nix::unistd::getuid();
     let currentgid = nix::unistd::getgid();
@@ -99,7 +103,12 @@ fn main()
     nix::unistd::setuid(currentuid).expect("setuid failed during drop");
 
     let cmd = &args[2];
-    let mut execargs : Vec<CString> = args.iter().skip(3).map(|s| { CString::new(s.as_str()).unwrap() }).collect();
+    let mut execargs: Vec<CString> = args
+        .iter()
+        .skip(3)
+        .map(|s| CString::new(s.as_str()).unwrap())
+        .collect();
     execargs.insert(0, CString::new(cmd.as_str()).unwrap());
-    nix::unistd::execvp(&CString::new(cmd.as_str()).unwrap(), &execargs).expect("execv failed launching your program");
+    nix::unistd::execvp(&CString::new(cmd.as_str()).unwrap(), &execargs)
+        .expect("execv failed launching your program");
 }