changes from feedback

Author: devnexen

library/std/src/sys/net/connection/socket/unix.rs

@@ -486,18 +486,17 @@ impl Socket {
     // bionic libc makes no use of this flag
     #[cfg(target_os = "linux")]
     pub fn set_deferaccept(&self, accept: Duration) -> io::Result<()> {
-        setsockopt(
-            self,
-            libc::IPPROTO_TCP,
-            libc::TCP_DEFER_ACCEPT,
-            accept.as_secs_f64().round() as c_int,
-        )
+        let val = accept.as_secs();
+        if val > i32::MAX as _ {
+            return Err(io::Error::from_raw_os_error(libc::EINVAL));
+        }
+        setsockopt(self, libc::IPPROTO_TCP, libc::TCP_DEFER_ACCEPT, val as c_int)
     }
 
     #[cfg(target_os = "linux")]
     pub fn deferaccept(&self) -> io::Result<Duration> {
         let raw: c_int = getsockopt(self, libc::IPPROTO_TCP, libc::TCP_DEFER_ACCEPT)?;
-        Ok(Duration::from_secs(raw.try_into().unwrap()))
+        Ok(Duration::from_secs(raw as _))
     }
 
     #[cfg(any(target_os = "freebsd", target_os = "netbsd"))]