Fix clippy lints

Signed-off-by: Alex Saveau <saveau.alexandre@gmail.com>

src/sys/aio.rs

@@ -163,7 +163,7 @@ impl AioCb {
             0 => Ok(()),
             num if num > 0 => Err(Errno::from_i32(num)),
             -1 => Err(Errno::last()),
-            num => panic!("unknown aio_error return value {:?}", num),
+            num => panic!("unknown aio_error return value {num:?}"),
         }
     }
 

src/sys/mman.rs

@@ -8,7 +8,7 @@ use crate::Result;
 #[cfg(feature = "fs")]
 use crate::{fcntl::OFlag, sys::stat::Mode};
 use libc::{self, c_int, c_void, off_t, size_t};
-use std::{os::unix::io::RawFd, num::NonZeroUsize};
+use std::{num::NonZeroUsize, os::unix::io::RawFd};
 
 libc_bitflags! {
     /// Desired memory protection of a memory mapping.
@@ -424,12 +424,11 @@ pub unsafe fn mmap(
     fd: RawFd,
     offset: off_t,
 ) -> Result<*mut c_void> {
-    let ptr = addr.map_or(
-        std::ptr::null_mut(),
-        |a| usize::from(a) as *mut c_void
-    );
-
-    let ret = libc::mmap(ptr, length.into(), prot.bits(), flags.bits(), fd, offset);
+    let ptr =
+        addr.map_or(std::ptr::null_mut(), |a| usize::from(a) as *mut c_void);
+
+    let ret =
+        libc::mmap(ptr, length.into(), prot.bits(), flags.bits(), fd, offset);
 
     if ret == libc::MAP_FAILED {
         Err(Errno::last())

src/sys/socket/addr.rs

@@ -42,19 +42,15 @@ pub(crate) const fn ipv4addr_to_libc(addr: net::Ipv4Addr) -> libc::in_addr {
     static_assertions::assert_eq_size!(net::Ipv4Addr, libc::in_addr);
     // Safe because both types have the same memory layout, and no fancy Drop
     // impls.
-    unsafe {
-        mem::transmute(addr)
-    }
+    unsafe { mem::transmute(addr) }
 }
 
 /// Convert a std::net::Ipv6Addr into the libc form.
 #[cfg(feature = "net")]
 pub(crate) const fn ipv6addr_to_libc(addr: &net::Ipv6Addr) -> libc::in6_addr {
     static_assertions::assert_eq_size!(net::Ipv6Addr, libc::in6_addr);
     // Safe because both are Newtype wrappers around the same libc type
-    unsafe {
-        mem::transmute(*addr)
-    }
+    unsafe { mem::transmute(*addr) }
 }
 
 /// These constants specify the protocol family to be used
@@ -79,7 +75,11 @@ pub enum AddressFamily {
     #[cfg_attr(docsrs, doc(cfg(all())))]
     Netlink = libc::AF_NETLINK,
     /// Kernel interface for interacting with the routing table
-    #[cfg(not(any(target_os = "redox", target_os = "linux", target_os = "android")))]
+    #[cfg(not(any(
+        target_os = "redox",
+        target_os = "linux",
+        target_os = "android"
+    )))]
     Route = libc::PF_ROUTE,
     /// Low level packet interface (see [`packet(7)`](https://man7.org/linux/man-pages/man7/packet.7.html))
     #[cfg(any(
@@ -422,7 +422,11 @@ impl AddressFamily {
             libc::AF_NETLINK => Some(AddressFamily::Netlink),
             #[cfg(any(target_os = "macos", target_os = "macos"))]
             libc::AF_SYSTEM => Some(AddressFamily::System),
-            #[cfg(not(any(target_os = "redox", target_os = "linux", target_os = "android")))]
+            #[cfg(not(any(
+                target_os = "redox",
+                target_os = "linux",
+                target_os = "android"
+            )))]
             libc::PF_ROUTE => Some(AddressFamily::Route),
             #[cfg(any(target_os = "android", target_os = "linux"))]
             libc::AF_PACKET => Some(AddressFamily::Packet),
@@ -592,10 +596,11 @@ impl UnixAddr {
     pub fn new_unnamed() -> UnixAddr {
         let ret = libc::sockaddr_un {
             sun_family: AddressFamily::Unix as sa_family_t,
-            .. unsafe { mem::zeroed() }
+            ..unsafe { mem::zeroed() }
         };
 
-        let sun_len: u8 = offset_of!(libc::sockaddr_un, sun_path).try_into().unwrap();
+        let sun_len: u8 =
+            offset_of!(libc::sockaddr_un, sun_path).try_into().unwrap();
 
         unsafe { UnixAddr::from_raw_parts(ret, sun_len) }
     }
@@ -1268,7 +1273,9 @@ impl SockaddrLike for SockaddrStorage {
                 if i32::from(ss.ss_family) == libc::AF_UNIX {
                     // Safe because we UnixAddr is strictly smaller than
                     // SockaddrStorage, and we just initialized the structure.
-                    (*(&mut ss as *mut libc::sockaddr_storage as *mut UnixAddr)).sun_len = len as u8;
+                    (*(&mut ss as *mut libc::sockaddr_storage
+                        as *mut UnixAddr))
+                        .sun_len = len as u8;
                 }
                 Some(Self { ss })
             }
@@ -1343,7 +1350,7 @@ impl SockaddrLike for SockaddrStorage {
             // The UnixAddr type knows its own length
             Some(ua) => ua.len(),
             // For all else, we're just a boring SockaddrStorage
-            None => mem::size_of_val(self) as libc::socklen_t
+            None => mem::size_of_val(self) as libc::socklen_t,
         }
     }
 }
@@ -1403,12 +1410,13 @@ impl SockaddrStorage {
             }
         }
         // Sanity checks
-        if self.family() != Some(AddressFamily::Unix) ||
-           len < offset_of!(libc::sockaddr_un, sun_path) ||
-           len > mem::size_of::<libc::sockaddr_un>() {
+        if self.family() != Some(AddressFamily::Unix)
+            || len < offset_of!(libc::sockaddr_un, sun_path)
+            || len > mem::size_of::<libc::sockaddr_un>()
+        {
             None
         } else {
-            Some(unsafe{&self.su})
+            Some(unsafe { &self.su })
         }
     }
 
@@ -1432,12 +1440,13 @@ impl SockaddrStorage {
             }
         }
         // Sanity checks
-        if self.family() != Some(AddressFamily::Unix) ||
-           len < offset_of!(libc::sockaddr_un, sun_path) ||
-           len > mem::size_of::<libc::sockaddr_un>() {
+        if self.family() != Some(AddressFamily::Unix)
+            || len < offset_of!(libc::sockaddr_un, sun_path)
+            || len > mem::size_of::<libc::sockaddr_un>()
+        {
             None
         } else {
-            Some(unsafe{&mut self.su})
+            Some(unsafe { &mut self.su })
         }
     }
 
@@ -2486,7 +2495,7 @@ mod tests {
         fn display() {
             let s = "127.0.0.1:8080";
             let addr = SockaddrIn::from_str(s).unwrap();
-            assert_eq!(s, format!("{}", addr));
+            assert_eq!(s, format!("{addr}"));
         }
 
         #[test]
@@ -2506,7 +2515,7 @@ mod tests {
         fn display() {
             let s = "[1234:5678:90ab:cdef::1111:2222]:8080";
             let addr = SockaddrIn6::from_str(s).unwrap();
-            assert_eq!(s, format!("{}", addr));
+            assert_eq!(s, format!("{addr}"));
         }
 
         #[test]
@@ -2525,9 +2534,8 @@ mod tests {
         fn from_sockaddr_un_named() {
             let ua = UnixAddr::new("/var/run/mysock").unwrap();
             let ptr = ua.as_ptr() as *const libc::sockaddr;
-            let ss = unsafe {
-                SockaddrStorage::from_raw(ptr, Some(ua.len()))
-            }.unwrap();
+            let ss = unsafe { SockaddrStorage::from_raw(ptr, Some(ua.len())) }
+                .unwrap();
             assert_eq!(ss.len(), ua.len());
         }
 
@@ -2537,9 +2545,8 @@ mod tests {
             let name = String::from("nix\0abstract\0test");
             let ua = UnixAddr::new_abstract(name.as_bytes()).unwrap();
             let ptr = ua.as_ptr() as *const libc::sockaddr;
-            let ss = unsafe {
-                SockaddrStorage::from_raw(ptr, Some(ua.len()))
-            }.unwrap();
+            let ss = unsafe { SockaddrStorage::from_raw(ptr, Some(ua.len())) }
+                .unwrap();
             assert_eq!(ss.len(), ua.len());
         }
 
@@ -2548,9 +2555,8 @@ mod tests {
         fn from_sockaddr_un_abstract_unnamed() {
             let ua = UnixAddr::new_unnamed();
             let ptr = ua.as_ptr() as *const libc::sockaddr;
-            let ss = unsafe {
-                SockaddrStorage::from_raw(ptr, Some(ua.len()))
-            }.unwrap();
+            let ss = unsafe { SockaddrStorage::from_raw(ptr, Some(ua.len())) }
+                .unwrap();
             assert_eq!(ss.len(), ua.len());
         }
     }

src/sys/socket/mod.rs

@@ -12,7 +12,6 @@ use libc::{
     self, c_int, c_void, iovec, size_t, socklen_t, CMSG_DATA, CMSG_FIRSTHDR,
     CMSG_LEN, CMSG_NXTHDR,
 };
-use std::convert::TryFrom;
 use std::io::{IoSlice, IoSliceMut};
 #[cfg(feature = "net")]
 use std::net;

src/sys/socket/sockopt.rs

@@ -6,10 +6,7 @@ use crate::Result;
 use cfg_if::cfg_if;
 use libc::{self, c_int, c_void, socklen_t};
 use std::ffi::{OsStr, OsString};
-use std::{
-    convert::TryFrom,
-    mem::{self, MaybeUninit}
-};
+use std::mem::{self, MaybeUninit};
 #[cfg(target_family = "unix")]
 use std::os::unix::ffi::OsStrExt;
 use std::os::unix::io::RawFd;
@@ -107,7 +104,7 @@ macro_rules! getsockopt_impl {
 
                     match <$ty>::try_from(getter.assume_init()) {
                         Err(_) => Err(Errno::EINVAL),
-                        Ok(r) => Ok(r)
+                        Ok(r) => Ok(r),
                     }
                 }
             }

src/sys/time.rs

@@ -261,8 +261,7 @@ impl TimeValLike for TimeSpec {
     fn seconds(seconds: i64) -> TimeSpec {
         assert!(
             (TS_MIN_SECONDS..=TS_MAX_SECONDS).contains(&seconds),
-            "TimeSpec out of bounds; seconds={}",
-            seconds
+            "TimeSpec out of bounds; seconds={seconds}",
         );
         let mut ts = zero_init_timespec();
         ts.tv_sec = seconds as time_t;
@@ -428,20 +427,20 @@ impl fmt::Display for TimeSpec {
 
         let sec = abs.tv_sec();
 
-        write!(f, "{}", sign)?;
+        write!(f, "{sign}")?;
 
         if abs.tv_nsec() == 0 {
-            if abs.tv_sec() == 1 {
-                write!(f, "{} second", sec)?;
+            if sec == 1 {
+                write!(f, "1 second")?;
             } else {
-                write!(f, "{} seconds", sec)?;
+                write!(f, "{sec} seconds")?;
             }
         } else if abs.tv_nsec() % 1_000_000 == 0 {
-            write!(f, "{}.{:03} seconds", sec, abs.tv_nsec() / 1_000_000)?;
+            write!(f, "{sec}.{:03} seconds", abs.tv_nsec() / 1_000_000)?;
         } else if abs.tv_nsec() % 1_000 == 0 {
-            write!(f, "{}.{:06} seconds", sec, abs.tv_nsec() / 1_000)?;
+            write!(f, "{sec}.{:06} seconds", abs.tv_nsec() / 1_000)?;
         } else {
-            write!(f, "{}.{:09} seconds", sec, abs.tv_nsec())?;
+            write!(f, "{sec}.{:09} seconds", abs.tv_nsec())?;
         }
 
         Ok(())
@@ -497,8 +496,7 @@ impl TimeValLike for TimeVal {
     fn seconds(seconds: i64) -> TimeVal {
         assert!(
             (TV_MIN_SECONDS..=TV_MAX_SECONDS).contains(&seconds),
-            "TimeVal out of bounds; seconds={}",
-            seconds
+            "TimeVal out of bounds; seconds={seconds}"
         );
         #[cfg_attr(target_env = "musl", allow(deprecated))]
         // https://github.com/rust-lang/libc/issues/1848
@@ -662,18 +660,18 @@ impl fmt::Display for TimeVal {
 
         let sec = abs.tv_sec();
 
-        write!(f, "{}", sign)?;
+        write!(f, "{sign}")?;
 
         if abs.tv_usec() == 0 {
-            if abs.tv_sec() == 1 {
-                write!(f, "{} second", sec)?;
+            if sec == 1 {
+                write!(f, "1 second")?;
             } else {
-                write!(f, "{} seconds", sec)?;
+                write!(f, "{sec} seconds")?;
             }
         } else if abs.tv_usec() % 1000 == 0 {
-            write!(f, "{}.{:03} seconds", sec, abs.tv_usec() / 1000)?;
+            write!(f, "{sec}.{:03} seconds", abs.tv_usec() / 1000)?;
         } else {
-            write!(f, "{}.{:06} seconds", sec, abs.tv_usec())?;
+            write!(f, "{sec}.{:06} seconds", abs.tv_usec())?;
         }
 
         Ok(())

test/sys/test_aio.rs

@@ -610,7 +610,7 @@ fn test_aio_suspend() {
             let r = aio_suspend(&cbbuf[..], Some(timeout));
             match r {
                 Err(Errno::EINTR) => continue,
-                Err(e) => panic!("aio_suspend returned {:?}", e),
+                Err(e) => panic!("aio_suspend returned {e:?}"),
                 Ok(_) => (),
             };
         }

test/sys/test_signal.rs

@@ -54,9 +54,8 @@ fn test_sigprocmask() {
     // test don't make sense.
     assert!(
         !old_signal_set.contains(SIGNAL),
-        "the {:?} signal is already blocked, please change to a \
-             different one",
-        SIGNAL
+        "the {SIGNAL:?} signal is already blocked, please change to a \
+             different one"
     );
 
     // Now block the signal.
@@ -71,8 +70,7 @@ fn test_sigprocmask() {
         .expect("expect to be able to retrieve old signals");
     assert!(
         old_signal_set.contains(SIGNAL),
-        "expected the {:?} to be blocked",
-        SIGNAL
+        "expected the {SIGNAL:?} to be blocked"
     );
 
     // Reset the signal.

test/sys/test_socket.rs

@@ -626,7 +626,7 @@ mod recvfrom {
                 println!("IPv6 not available, skipping test.");
                 return;
             }
-            Err(e) => panic!("bind: {}", e),
+            Err(e) => panic!("bind: {e}"),
             Ok(()) => (),
         }
         let ssock = socket(
@@ -1272,7 +1272,7 @@ fn test_scm_credentials() {
                 ControlMessageOwned::ScmCredentials(cred) => cred,
                 #[cfg(any(target_os = "freebsd", target_os = "dragonfly"))]
                 ControlMessageOwned::ScmCreds(cred) => cred,
-                other => panic!("unexpected cmsg {:?}", other),
+                other => panic!("unexpected cmsg {other:?}"),
             };
             assert!(received_cred.is_none());
             assert_eq!(cred.pid(), getpid().as_raw());
@@ -1550,7 +1550,7 @@ fn loopback_address(
         Err(e) => {
             let stdioerr = io::stderr();
             let mut handle = stdioerr.lock();
-            writeln!(handle, "getifaddrs: {:?}", e).unwrap();
+            writeln!(handle, "getifaddrs: {e:?}").unwrap();
             return None;
         }
     };
@@ -2347,7 +2347,7 @@ mod linux_errqueue {
                     }
                     *ext_err
                 } else {
-                    panic!("Unexpected control message {:?}", cmsg);
+                    panic!("Unexpected control message {cmsg:?}");
                 }
             },
         )
@@ -2398,7 +2398,7 @@ mod linux_errqueue {
                     }
                     *ext_err
                 } else {
-                    panic!("Unexpected control message {:?}", cmsg);
+                    panic!("Unexpected control message {cmsg:?}");
                 }
             },
         )
@@ -2432,7 +2432,7 @@ mod linux_errqueue {
             MsgFlags::empty(),
         ) {
             assert_eq!(e, Errno::EADDRNOTAVAIL);
-            println!("{:?} not available, skipping test.", af);
+            println!("{af:?} not available, skipping test.");
             return;
         }