Updated dependencies

CHANGELOG.md

@@ -5,7 +5,9 @@ This project follows [semantic versioning](http://semver.org).
 ### UNRELEASED
 
 - [changed] Using serde instead of rustc_serialize
+- [changed] Updated libsodium to 1.0.16
 - [changed] Updated dependencies
+- [changed] Making clippy happy
 - [fixed] Fixed wrong address
 
 ### v0.8.1 (2017-05-09)

Cargo.toml

@@ -12,25 +12,25 @@ readme = "README.md"
 
 [dependencies]
 time = "0.1"
-docopt = "0.8"
+docopt = "^1"
 serde = "1.0"
 serde_derive = "1.0"
-serde_yaml = "0.7"
+serde_yaml = "0.8"
-log = "0.3"
+log = { version = "0.4", features = ["std"] }
-signal = "0.3"
+signal = "0.6"
 libc = "0.2"
 aligned_alloc = "0.1"
-rand = "0.3"
+rand = "0.6"
 fnv = "1"
 net2 = "0.2"
-bitflags = "0.8"
+bitflags = "^1"
-yaml-rust = "0.3"
+yaml-rust = "0.4"
-igd = "0.6"
+igd = "0.7"
-siphasher = "0.2"
+siphasher = "0.3"
-daemonize = "0.2"
+daemonize = "0.3"
 
 [build-dependencies]
-gcc = "0.3"
+cc = "^1"
 pkg-config = "0.3"
 
 [features]

build.rs

@@ -2,7 +2,7 @@
 // Copyright (C) 2015-2017  Dennis Schwerdel
 // This software is licensed under GPL-3 or newer (see LICENSE.md)
 
-extern crate gcc;
+extern crate cc;
 extern crate pkg_config;
 
 use std::process::Command;
@@ -11,7 +11,7 @@ use std::env;
 use std::fs;
 
 fn main() {
-    gcc::Config::new().file("src/c/tuntap.c").include("src").compile("libtuntap.a");
+    cc::Build::new().file("src/c/tuntap.c").include("src").compile("libtuntap.a");
     if cfg!(feature = "system-libsodium") {
         pkg_config::Config::new().atleast_version("1.0.8").probe("libsodium").expect("Libsodium >= 1.0.8 missing");
         return

libsodium

@@ -1 +1 @@
-Subproject commit 70170c28c844a4786e75efc626e1aeebc93caebc
+Subproject commit 675149b9b8b66ff44152553fb3ebf9858128363d

src/benches.rs

@@ -17,7 +17,7 @@ use super::ethernet::{Frame, SwitchTable};
 use super::types::{Address, Table, Protocol};
 use super::ip::Packet;
 use super::util::now as util_now;
-use super::poll::{self, Poll};
+use super::poll::{Poll, Flags};
 
 #[bench]
 fn crypto_salsa20(b: &mut Bencher) {
@@ -141,7 +141,7 @@ fn epoll_wait(b: &mut Bencher) {
     let socket = UdpSocket::bind("0.0.0.0:0").unwrap();
     let mut poll_handle = Poll::new(1).unwrap();
     let fd = socket.as_raw_fd();
-    poll_handle.register(fd, poll::WRITE).unwrap();
+    poll_handle.register(fd, Flags::WRITE).unwrap();
     b.iter(|| {
         assert_eq!(poll_handle.wait(1000).unwrap().len(), 1)
     });

src/cloud.rs

@@ -14,9 +14,8 @@ use std::time::Instant;
 use std::cmp::min;
 
 use fnv::FnvHasher;
-use libc::{SIGTERM, SIGQUIT, SIGINT};
+use signal::{trap::Trap, Signal};
-use signal::trap::Trap;
+use rand::{prelude::*, random, thread_rng};
-use rand::{random, sample, thread_rng};
 use net2::UdpBuilder;
 
 use super::types::{Table, Protocol, Range, Error, HeaderMagic, NodeId};
@@ -25,7 +24,7 @@ use super::udpmessage::{encode, decode, Message};
 use super::crypto::Crypto;
 use super::port_forwarding::PortForwarding;
 use super::util::{now, Time, Duration, resolve};
-use super::poll::{self, Poll};
+use super::poll::{Poll, Flags};
 
 type Hash = BuildHasherDefault<FnvHasher>;
 
@@ -44,7 +43,7 @@ impl PeerList {
     fn new(timeout: Duration) -> PeerList {
         PeerList{
             peers: HashMap::default(),
-            timeout: timeout,
+            timeout,
             nodes: HashMap::default(),
             addresses: HashSet::default()
         }
@@ -96,7 +95,7 @@ impl PeerList {
     fn add(&mut self, node_id: NodeId, addr: SocketAddr) {
         if self.nodes.insert(node_id, addr).is_none() {
             info!("New peer: {}", addr);
-            self.peers.insert(addr, (now()+self.timeout as Time, node_id, vec![]));
+            self.peers.insert(addr, (now()+Time::from(self.timeout), node_id, vec![]));
             self.addresses.insert(addr);
         }
     }
@@ -104,7 +103,7 @@ impl PeerList {
     #[inline]
     fn refresh(&mut self, addr: &SocketAddr) {
         if let Some(&mut (ref mut timeout, _node_id, ref _alt_addrs)) = self.peers.get_mut(addr) {
-            *timeout = now()+self.timeout as Time;
+            *timeout = now()+Time::from(self.timeout);
         }
     }
 
@@ -140,7 +139,7 @@ impl PeerList {
 
     #[inline]
     fn subset(&self, size: usize) -> Vec<SocketAddr> {
-        sample(&mut thread_rng(), self.as_vec(), size)
+        self.addresses.iter().choose_multiple(&mut thread_rng(), size).into_iter().cloned().collect()
     }
 
     #[inline]
@@ -190,8 +189,7 @@ pub struct GenericCloud<P: Protocol, T: Table> {
 }
 
 impl<P: Protocol, T: Table> GenericCloud<P, T> {
-    #[allow(unknown_lints)]
+    #[allow(unknown_lints,clippy::too_many_arguments)]
-    #[allow(too_many_arguments)]
     pub fn new(magic: HeaderMagic, device: Device, listen: u16, table: T,
         peer_timeout: Duration, learning: bool, broadcast: bool, addresses: Vec<Range>,
         crypto: Crypto, port_forwarding: Option<PortForwarding>) -> Self {
@@ -207,24 +205,24 @@ impl<P: Protocol, T: Table> GenericCloud<P, T> {
             Err(err) => fail!("Failed to open ipv6 address ::{}: {}", listen, err)
         };
         GenericCloud{
-            magic: magic,
+            magic,
             node_id: random(),
             peers: PeerList::new(peer_timeout),
-            addresses: addresses,
+            addresses,
-            learning: learning,
+            learning,
-            broadcast: broadcast,
+            broadcast,
             reconnect_peers: Vec::new(),
             blacklist_peers: Vec::new(),
-            table: table,
+            table,
-            socket4: socket4,
+            socket4,
-            socket6: socket6,
+            socket6,
-            device: device,
+            device,
-            crypto: crypto,
+            crypto,
             next_peerlist: now(),
             update_freq: peer_timeout/2-60,
             buffer_out: [0; 64*1024],
             next_housekeep: now(),
-            port_forwarding: port_forwarding,
+            port_forwarding,
             _dummy_p: PhantomData,
         }
     }
@@ -384,7 +382,7 @@ impl<P: Protocol, T: Table> GenericCloud<P, T> {
             let mut msg = Message::Peers(peers);
             try!(self.broadcast_msg(&mut msg));
             // Reschedule for next update
-            self.next_peerlist = now + self.update_freq as Time;
+            self.next_peerlist = now + Time::from(self.update_freq);
         }
         // Connect to those reconnect_peers that are due
         for entry in self.reconnect_peers.clone() {
@@ -423,7 +421,7 @@ impl<P: Protocol, T: Table> GenericCloud<P, T> {
                 entry.timeout = MAX_RECONNECT_INTERVAL;
             }
             // Schedule next connection attempt
-            entry.next = now + entry.timeout as Time;
+            entry.next = now + Time::from(entry.timeout);
         }
         Ok(())
     }
@@ -574,18 +572,17 @@ impl<P: Protocol, T: Table> GenericCloud<P, T> {
     /// `handle_net_message` method. It will also read from the device and call
     /// `handle_interface_data` for each packet read.
     /// Also, this method will call `housekeep` every second.
-    #[allow(unknown_lints)]
+    #[allow(unknown_lints,clippy::cyclomatic_complexity)]
-    #[allow(cyclomatic_complexity)]
     pub fn run(&mut self) {
         let dummy_time = Instant::now();
-        let trap = Trap::trap(&[SIGINT, SIGTERM, SIGQUIT]);
+        let trap = Trap::trap(&[Signal::SIGINT, Signal::SIGTERM, Signal::SIGQUIT]);
         let mut poll_handle = try_fail!(Poll::new(3), "Failed to create poll handle: {}");
         let socket4_fd = self.socket4.as_raw_fd();
         let socket6_fd = self.socket6.as_raw_fd();
         let device_fd = self.device.as_raw_fd();
-        try_fail!(poll_handle.register(socket4_fd, poll::READ), "Failed to add ipv4 socket to poll handle: {}");
+        try_fail!(poll_handle.register(socket4_fd, Flags::READ), "Failed to add ipv4 socket to poll handle: {}");
-        try_fail!(poll_handle.register(socket6_fd, poll::READ), "Failed to add ipv6 socket to poll handle: {}");
+        try_fail!(poll_handle.register(socket6_fd, Flags::READ), "Failed to add ipv6 socket to poll handle: {}");
-        try_fail!(poll_handle.register(device_fd, poll::READ), "Failed to add device to poll handle: {}");
+        try_fail!(poll_handle.register(device_fd, Flags::READ), "Failed to add device to poll handle: {}");
         let mut buffer = [0; 64*1024];
         let mut poll_error = false;
         loop {

src/config.rs

@@ -172,7 +172,7 @@ impl Config {
                 let mut s = SipHasher24::new();
                 name[6..].hash(&mut s);
                 let mut data = [0; 4];
-                Encoder::write_u32((s.finish() & 0xffffffff) as u32, &mut data);
+                Encoder::write_u32((s.finish() & 0xffff_ffff) as u32, &mut data);
                 data
             } else {
                 let num = try_fail!(u32::from_str_radix(name, 16), "Failed to parse header magic: {}");

src/crypto.rs

@@ -38,9 +38,9 @@ const crypto_pwhash_scryptsalsa208sha256_SALTBYTES: usize = 32;
 #[allow(non_upper_case_globals)]
 const crypto_pwhash_scryptsalsa208sha256_STRBYTES: usize = 102;
 #[allow(non_upper_case_globals)]
-const crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE: usize = 524288;
+const crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE: usize = 524_288;
 #[allow(non_upper_case_globals)]
-const crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVE: usize = 16777216;
+const crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVE: usize = 16_777_216;
 
 pub struct Aes256State(*mut [u8; crypto_aead_aes256gcm_STATEBYTES]);
 
@@ -193,8 +193,7 @@ impl Crypto {
     }
 
     #[inline]
-    #[allow(unknown_lints)]
+    #[allow(unknown_lints,clippy::match_same_arms)]
-    #[allow(match_same_arms)]
     pub fn additional_bytes(&self) -> usize {
         match *self {
             Crypto::None => 0,
@@ -225,7 +224,7 @@ impl Crypto {
                 crypto_key.clone_from_slice(&key[..crypto_aead_chacha20poly1305_ietf_KEYBYTES]);
                 let mut nonce = [0u8; crypto_aead_chacha20poly1305_ietf_NPUBBYTES];
                 unsafe { randombytes_buf(nonce.as_mut_ptr(), nonce.len()) };
-                Crypto::ChaCha20Poly1305{key: crypto_key, nonce: nonce}
+                Crypto::ChaCha20Poly1305{key: crypto_key, nonce}
             },
             CryptoMethod::AES256 => {
                 if ! Crypto::aes256_available() {
@@ -239,7 +238,7 @@ impl Crypto {
                     key[..crypto_aead_aes256gcm_KEYBYTES].as_ptr() as *const [u8; crypto_aead_aes256gcm_KEYBYTES]
                 ) };
                 assert_eq!(res, 0);
-                Crypto::AES256GCM{state: state, nonce: nonce}
+                Crypto::AES256GCM{state, nonce}
             }
         }
     }

src/device.rs

@@ -81,7 +81,7 @@ impl Device {
                 while ifname_c.last() == Some(&0) {
                     ifname_c.pop();
                 }
-                Ok(Device{fd: fd, ifname: String::from_utf8(ifname_c).unwrap(), type_: type_})
+                Ok(Device{fd, ifname: String::from_utf8(ifname_c).unwrap(), type_})
             },
             _ => Err(IoError::last_os_error())
         }
@@ -118,7 +118,7 @@ impl Device {
         Ok(Device{
             fd: try!(fs::OpenOptions::new().create(true).read(true).write(true).open(path)),
             ifname: ifname.to_string(),
-            type_: type_
+            type_
         })
     }
 

src/ethernet.rs

@@ -79,7 +79,7 @@ pub struct SwitchTable {
 impl SwitchTable {
     /// Creates a new switch table
     pub fn new(timeout: Duration, protection_period: Duration) -> Self {
-        SwitchTable{table: HashMap::default(), timeout: timeout, protection_period: protection_period}
+        SwitchTable{table: HashMap::default(), timeout, protection_period}
     }
 }
 
@@ -102,7 +102,7 @@ impl Table for SwitchTable {
     /// Learns the given address, inserting it in the hash map
     #[inline]
     fn learn(&mut self, key: Address, _prefix_len: Option<u8>, addr: SocketAddr) {
-        let deadline = now() + self.timeout as Time;
+        let deadline = now() + Time::from(self.timeout);
         match self.table.entry(key) {
             Entry::Vacant(entry) => {
                 entry.insert(SwitchTableValue{address: addr, timeout: deadline});
@@ -110,7 +110,7 @@ impl Table for SwitchTable {
             },
             Entry::Occupied(mut entry) => {
                 let mut entry = entry.get_mut();
-                if entry.timeout + self.protection_period as Time > deadline {
+                if entry.timeout + Time::from(self.protection_period) > deadline {
                     // Do not override recently learnt entries
                     return
                 }

src/ip.rs

@@ -24,7 +24,7 @@ impl Protocol for Packet {
     /// # Errors
     /// This method will fail when the given data is not a valid ipv4 and ipv6 packet.
     fn parse(data: &[u8]) -> Result<(Address, Address), Error> {
-        if data.len() < 1 {
+        if data.is_empty() {
             return Err(Error::Parse("Empty header"));
         }
         let version = data[0] >> 4;
@@ -90,16 +90,16 @@ impl Table for RoutingTable {
         let mut group_bytes = [0; 16];
         group_bytes[..group_len].copy_from_slice(&addr.data[..group_len]);
         // Create an entry
-        let routing_entry = RoutingEntry{address: address, bytes: addr.data, prefix_len: prefix_len};
+        let routing_entry = RoutingEntry{address, bytes: addr.data, prefix_len};
         // Add the entry to the routing table, creating a new list of the prefix group is empty.
         match self.0.entry(group_bytes) {
             hash_map::Entry::Occupied(mut entry) => entry.get_mut().push(routing_entry),
-            hash_map::Entry::Vacant(entry) => { entry.insert(vec![routing_entry]); () }
+            hash_map::Entry::Vacant(entry) => { entry.insert(vec![routing_entry]); }
         }
     }
 
     /// Retrieves a peer for an address if it is inside the routing table
-    #[allow(unknown_lints, needless_range_loop)]
+    #[allow(unknown_lints, clippy::needless_range_loop)]
     fn lookup(&mut self, addr: &Address) -> Option<SocketAddr> {
         let len = addr.len as usize;
         let mut found = None;
@@ -110,7 +110,7 @@ impl Table for RoutingTable {
         for i in len..16 {
             group_bytes[i] = 0;
         }
-        for i in (0..len+1).rev() {
+        for i in (0..=len).rev() {
             if i < len {
                 group_bytes[i] = 0;
             }

src/main.rs

@@ -62,6 +62,7 @@ const MAGIC: HeaderMagic = *b"vpn\x01";
 
 static USAGE: &'static str = include_str!("usage.txt");
 
+
 #[derive(Deserialize, Debug, Default)]
 pub struct Args {
     flag_config: Option<String>,
@@ -90,7 +91,6 @@ pub struct Args {
     flag_log_file: Option<String>
 }
 
-
 struct DualLogger {
     file: Mutex<Option<File>>
 }
@@ -108,12 +108,12 @@ impl DualLogger {
 
 impl log::Log for DualLogger {
     #[inline]
-    fn enabled(&self, _metadata: &log::LogMetadata) -> bool {
+    fn enabled(&self, _metadata: &log::Metadata) -> bool {
         true
     }
 
     #[inline]
-    fn log(&self, record: &log::LogRecord) {
+    fn log(&self, record: &log::Record) {
         if self.enabled(record.metadata()) {
             println!("{} - {}", record.level(), record.args());
             let mut file = self.file.lock().expect("Lock poisoned");
@@ -123,6 +123,14 @@ impl log::Log for DualLogger {
             }
         }
     }
+
+    #[inline]
+    fn flush(&self) {
+        let mut file = self.file.lock().expect("Lock poisoned");
+        if let Some(ref mut file) = *file {
+            try_fail!(file.flush(), "Logging error: {}");
+        }
+    }
 }
 
 fn run_script(script: &str, ifname: &str) {
@@ -130,9 +138,7 @@ fn run_script(script: &str, ifname: &str) {
     cmd.arg("-c").arg(&script).env("IFNAME", ifname);
     debug!("Running script: {:?}", cmd);
     match cmd.status() {
-        Ok(status) => if status.success() {
+        Ok(status) => if !status.success() {
-            ()
-        } else {
             error!("Script returned with error: {:?}", status.code())
         },
         Err(e) => error!("Failed to execute script {:?}: {}", script, e)
@@ -150,7 +156,7 @@ enum AnyCloud<P: Protocol> {
 }
 
 impl<P: Protocol> AnyCloud<P> {
-    #[allow(unknown_lints,too_many_arguments)]
+    #[allow(unknown_lints,clippy::too_many_arguments)]
     fn new(magic: HeaderMagic, device: Device, listen: u16, table: AnyTable,
             peer_timeout: Duration, learning: bool, broadcast: bool, addresses: Vec<Range>,
             crypto: Crypto, port_forwarding: Option<PortForwarding>) -> Self {
@@ -264,17 +270,18 @@ fn main() {
         );
         return;
     }
-    log::set_logger(|max_log_level| {
+    let logger = try_fail!(DualLogger::new(args.flag_log_file.as_ref()), "Failed to open logfile: {}");
+    log::set_boxed_logger(Box::new(logger)).unwrap();
     assert!(!args.flag_verbose || !args.flag_quiet);
+    log::set_max_level(
         if args.flag_verbose {
-            max_log_level.set(log::LogLevelFilter::Debug);
+            log::LevelFilter::Debug
         } else if args.flag_quiet {
-            max_log_level.set(log::LogLevelFilter::Error);
+            log::LevelFilter::Error
         } else {
-            max_log_level.set(log::LogLevelFilter::Info);
+            log::LevelFilter::Info
         }
-        Box::new(try_fail!(DualLogger::new(args.flag_log_file.as_ref()), "Failed to open logfile: {}"))
+    );
-    }).unwrap();
     let mut config = Config::default();
     if let Some(ref file) = args.flag_config {
         info!("Reading config file '{}'", file);

src/poll/epoll.rs

@@ -9,10 +9,10 @@ use std::io;
 use std::ops::{Deref, DerefMut};
 
 bitflags!{
-    pub flags Flags: u32 {
+    pub struct Flags: u32 {
-        const READ = libc::EPOLLIN as u32,
+        const READ = libc::EPOLLIN as u32;
-        const WRITE = libc::EPOLLOUT as u32,
+        const WRITE = libc::EPOLLOUT as u32;
-        const ERROR = libc::EPOLLERR as u32,
+        const ERROR = libc::EPOLLERR as u32;
     }
 }
 
@@ -67,7 +67,7 @@ impl Poll {
         if fd == -1 {
             return Err(io::Error::last_os_error());
         }
-        Ok(Poll{fd: fd, events: events})
+        Ok(Poll{fd, events})
     }
 
     #[inline]

src/port_forwarding.rs

@@ -10,7 +10,7 @@ use igd::*;
 use super::util::{Time, now};
 
 const LEASE_TIME: u32 = 300;
-const DESCRIPTION: &'static str = "VpnCloud";
+const DESCRIPTION: &str = "VpnCloud";
 
 
 pub struct PortForwarding {
@@ -90,15 +90,15 @@ impl PortForwarding {
         };
         info!("Port-forwarding: sucessfully activated port forward on {}, timeout: {}", external_addr, timeout);
         let next_extension = if timeout > 0 {
-            Some(now() + timeout as Time - 60)
+            Some(now() + Time::from(timeout) - 60)
         } else {
             None
         };
         Some(PortForwarding {
-            internal_addr: internal_addr,
+            internal_addr,
-            external_addr: external_addr,
+            external_addr,
-            gateway: gateway,
+            gateway,
-            next_extension: next_extension
+            next_extension
         })
     }
 
@@ -114,7 +114,7 @@ impl PortForwarding {
             Ok(()) => debug!("Port-forwarding: extended port forwarding"),
             Err(err) => error!("Port-forwarding: failed to extend port forwarding: {}", err)
         };
-        self.next_extension = Some(now() + LEASE_TIME as Time - 60);
+        self.next_extension = Some(now() + Time::from(LEASE_TIME) - 60);
     }
 
     fn deactivate(&self) {

src/types.rs

@@ -25,7 +25,7 @@ pub struct Address {
 impl Address {
     #[inline]
     pub fn read_from(data: &[u8]) -> Result<(Address, usize), Error> {
-        if data.len() < 1 {
+        if data.is_empty() {
             return Err(Error::Parse("Address too short"));
         }
         let len = data[0] as usize;
@@ -48,10 +48,10 @@ impl Address {
 
     #[inline]
     pub fn write_to(&self, data: &mut[u8]) -> usize {
-        assert!(data.len() >= self.len as usize + 1);
+        assert!(data.len() > self.len as usize);
         data[0] = self.len;
         let len = self.len as usize;
-        data[1..len+1].copy_from_slice(&self.data[0..len]);
+        data[1..=len].copy_from_slice(&self.data[0..len]);
         self.len as usize + 1
     }
 }
@@ -101,8 +101,7 @@ impl fmt::Debug for Address {
 impl FromStr for Address {
     type Err=Error;
 
-    #[allow(unknown_lints)]
+    #[allow(unknown_lints,clippy::needless_range_loop)]
-    #[allow(needless_range_loop)]
     fn from_str(text: &str) -> Result<Self, Self::Err> {
         if let Ok(addr) = Ipv4Addr::from_str(text) {
             let ip = addr.octets();
@@ -145,13 +144,13 @@ impl Range {
             return Err(Error::Parse("Range too short"));
         }
         let prefix_len = data[read];
-        Ok((Range{base: address, prefix_len: prefix_len}, read + 1))
+        Ok((Range{base: address, prefix_len}, read + 1))
     }
 
     #[inline]
     pub fn write_to(&self, data: &mut[u8]) -> usize {
         let pos = self.base.write_to(data);
-        assert!(data.len() >= pos + 1);
+        assert!(data.len() > pos);
         data[pos] = self.prefix_len;
         pos + 1
     }
@@ -168,7 +167,7 @@ impl FromStr for Range {
         let prefix_len = try!(u8::from_str(&text[pos+1..])
             .map_err(|_| Error::Parse("Failed to parse prefix length")));
         let base = try!(Address::from_str(&text[..pos]));
-        Ok(Range{base: base, prefix_len: prefix_len})
+        Ok(Range{base, prefix_len})
     }
 }
 

src/udpmessage.rs

@@ -36,6 +36,7 @@ impl TopHeader {
         Ok((header, TopHeader::size()))
     }
 
+    #[allow(unknown_lints,clippy::trivially_copy_pass_by_ref)]
     pub fn write_to(&self, data: &mut [u8]) -> usize {
         assert!(data.len() >= 8);
         data[0..4].copy_from_slice(&self.magic);
@@ -76,8 +77,7 @@ impl<'a> fmt::Debug for Message<'a> {
     }
 }
 
-#[allow(unknown_lints)]
+#[allow(unknown_lints,clippy::needless_range_loop)]
-#[allow(needless_range_loop)]
 pub fn decode<'a>(data: &'a mut [u8], magic: HeaderMagic, crypto: &mut Crypto) -> Result<Message<'a>, Error> {
     let mut end = data.len();
     let (header, mut pos) = try!(TopHeader::read_from(&data[..end]));
@@ -170,8 +170,7 @@ pub fn decode<'a>(data: &'a mut [u8], magic: HeaderMagic, crypto: &mut Crypto) -
     Ok(msg)
 }
 
-#[allow(unknown_lints)]
+#[allow(unknown_lints,clippy::needless_range_loop)]
-#[allow(needless_range_loop)]
 pub fn encode<'a>(msg: &'a mut Message, mut buf: &'a mut [u8], magic: HeaderMagic, crypto: &mut Crypto) -> &'a mut [u8] {
     let mut start = 64;
     let mut end = 64;

src/util.rs

@@ -30,7 +30,7 @@ pub fn now() -> Time {
     time::get_time().sec
 }
 
-const HEX_CHARS: &'static [u8] = b"0123456789abcdef";
+const HEX_CHARS: &[u8] = b"0123456789abcdef";
 
 pub fn bytes_to_hex(bytes: &[u8]) -> String {
     let mut v = Vec::with_capacity(bytes.len() * 2);
@@ -49,7 +49,7 @@ pub struct Encoder;
 impl Encoder {
     #[inline]
     pub fn read_u16(data: &[u8]) -> u16 {
-        ((data[0] as u16) << 8) | data[1] as u16
+        (u16::from(data[0]) << 8) | u16::from(data[1])
     }
 
     #[inline]
@@ -60,8 +60,8 @@ impl Encoder {
 
     #[inline]
     pub fn read_u32(data: &[u8]) -> u32 {
-        ((data[0] as u32) << 24) | ((data[1] as u32) << 16) |
+        (u32::from(data[0]) << 24) | (u32::from(data[1]) << 16) |
-        ((data[2] as u32) << 8) | data[3] as u32
+        (u32::from(data[2]) << 8) | u32::from(data[3])
     }
 
     #[inline]
@@ -74,10 +74,10 @@ impl Encoder {
 
     #[inline]
     pub fn read_u64(data: &[u8]) -> u64 {
-        ((data[0] as u64) << 56) | ((data[1] as u64) << 48) |
+        (u64::from(data[0]) << 56) | (u64::from(data[1]) << 48) |
-        ((data[2] as u64) << 40) | ((data[3] as u64) << 32) |
+        (u64::from(data[2]) << 40) | (u64::from(data[3]) << 32) |
-        ((data[4] as u64) << 24) | ((data[5] as u64) << 16) |
+        (u64::from(data[4]) << 24) | (u64::from(data[5]) << 16) |
-        ((data[6] as u64) << 8) | data[7] as u64
+        (u64::from(data[6]) << 8) | u64::from(data[7])
     }
 
     #[inline]
@@ -123,7 +123,7 @@ macro_rules! try_fail {
 }
 
 
-#[allow(unknown_lints,needless_pass_by_value)]
+#[allow(unknown_lints,clippy::needless_pass_by_value)]
 pub fn resolve<Addr: ToSocketAddrs+fmt::Debug>(addr: Addr) -> Result<Vec<SocketAddr>, Error> {
     let addrs = try!(addr.to_socket_addrs().map_err(|_| Error::Name(format!("{:?}", addr))));
     // Remove duplicates in addrs (why are there duplicates???)