[0.2] Backports

src/unix/aix/mod.rs

@@ -962,8 +962,6 @@ pub const BPF_X: ::c_int = 8;
 // net/if.h
 pub const IFNET_SLOWHZ: ::c_int = 1;
 pub const IFQ_MAXLEN: ::c_int = 50;
-pub const IF_NAMESIZE: ::c_int = 16;
-pub const IFNAMSIZ: ::c_int = 16;
 pub const IFF_UP: ::c_int = 0x1;
 pub const IFF_BROADCAST: ::c_int = 0x2;
 pub const IFF_DEBUG: ::c_int = 0x4;
@@ -986,8 +984,6 @@ pub const ARPHRD_ETHER: ::c_int = 1;
 pub const ARPHRD_802_5: ::c_int = 6;
 pub const ARPHRD_802_3: ::c_int = 6;
 pub const ARPHRD_FDDI: ::c_int = 1;
-pub const ARPOP_REQUEST: ::c_int = 1;
-pub const ARPOP_REPLY: ::c_int = 2;
 
 // net/route.h
 pub const RTM_ADD: ::c_int = 0x1;

src/unix/bsd/apple/mod.rs

@@ -5760,19 +5760,19 @@ f! {
             return ::CMSG_FIRSTHDR(mhdr);
         };
         let cmsg_len = (*cmsg).cmsg_len as usize;
-        let next = cmsg as usize + __DARWIN_ALIGN32(cmsg_len as usize);
+        let next = cmsg as usize + __DARWIN_ALIGN32(cmsg_len);
         let max = (*mhdr).msg_control as usize
                     + (*mhdr).msg_controllen as usize;
         if next + __DARWIN_ALIGN32(::mem::size_of::<::cmsghdr>()) > max {
-            0 as *mut ::cmsghdr
+            core::ptr::null_mut()
         } else {
             next as *mut ::cmsghdr
         }
     }
 
     pub fn CMSG_DATA(cmsg: *const ::cmsghdr) -> *mut ::c_uchar {
         (cmsg as *mut ::c_uchar)
-            .offset(__DARWIN_ALIGN32(::mem::size_of::<::cmsghdr>()) as isize)
+            .add(__DARWIN_ALIGN32(::mem::size_of::<::cmsghdr>()))
     }
 
     pub {const} fn CMSG_SPACE(length: ::c_uint) -> ::c_uint {

src/unix/bsd/mod.rs

@@ -591,7 +591,7 @@ f! {
         if (*mhdr).msg_controllen as usize >= ::mem::size_of::<::cmsghdr>() {
             (*mhdr).msg_control as *mut ::cmsghdr
         } else {
-            0 as *mut ::cmsghdr
+            core::ptr::null_mut()
         }
     }