convert sendmmsg/recvmmsg flags

Author: Gleb Pomykalov

src/sys/socket/mod.rs

@@ -832,7 +832,7 @@ pub fn sendmmsg<'a>(fd: RawFd, data: impl std::iter::IntoIterator<Item=&'a SendM
 
     let mut initialized_data = unsafe { mem::transmute::<_, Vec<libc::mmsghdr>>(output) };
 
-    let ret = unsafe { libc::sendmmsg(fd, initialized_data.as_mut_ptr(), initialized_data.len() as u32, flags.bits()) };
+    let ret = unsafe { libc::sendmmsg(fd, initialized_data.as_mut_ptr(), initialized_data.len() as u32, flags.bits() as _) };
 
     let sent_messages = Errno::result(ret)? as usize;
     let mut sent_bytes = Vec::with_capacity(sent_messages);
@@ -916,7 +916,7 @@ pub fn recvmmsg<'a>(fd: RawFd,
         ptr::null_mut()
     };
 
-    let ret = unsafe { libc::recvmmsg(fd, initialized_data.as_mut_ptr(), initialized_data.len() as u32, flags.bits(), timeout) };
+    let ret = unsafe { libc::recvmmsg(fd, initialized_data.as_mut_ptr(), initialized_data.len() as u32, flags.bits() as _, timeout) };
 
     let r = Errno::result(ret)?;