unix: add RawSockaddrDatalink on aix

This is already part of package syscall, so add it to x/sys/unix as
well.

Change-Id: I2eb015dd439d37894519858f010cc45d6e3da50a
Reviewed-on: https://go-review.googlesource.com/c/sys/+/178657
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

unix/types_aix.go

@@ -131,6 +131,8 @@ type RawSockaddrInet6 C.struct_sockaddr_in6
 
 type RawSockaddrUnix C.struct_sockaddr_un
 
+type RawSockaddrDatalink C.struct_sockaddr_dl
+
 type RawSockaddr C.struct_sockaddr
 
 type RawSockaddrAny C.struct_sockaddr_any
@@ -158,6 +160,7 @@ const (
 	SizeofSockaddrInet6    = C.sizeof_struct_sockaddr_in6
 	SizeofSockaddrAny      = C.sizeof_struct_sockaddr_any
 	SizeofSockaddrUnix     = C.sizeof_struct_sockaddr_un
+	SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl
 	SizeofLinger           = C.sizeof_struct_linger
 	SizeofIPMreq           = C.sizeof_struct_ip_mreq
 	SizeofIPv6Mreq         = C.sizeof_struct_ipv6_mreq

unix/ztypes_aix_ppc.go

@@ -143,6 +143,17 @@ type RawSockaddrUnix struct {
 	Path   [1023]uint8
 }
 
+type RawSockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [120]uint8
+}
+
 type RawSockaddr struct {
 	Len    uint8
 	Family uint8
@@ -206,6 +217,7 @@ const (
 	SizeofSockaddrInet6    = 0x1c
 	SizeofSockaddrAny      = 0x404
 	SizeofSockaddrUnix     = 0x401
+	SizeofSockaddrDatalink = 0x80
 	SizeofLinger           = 0x8
 	SizeofIPMreq           = 0x8
 	SizeofIPv6Mreq         = 0x14

unix/ztypes_aix_ppc64.go

@@ -147,6 +147,17 @@ type RawSockaddrUnix struct {
 	Path   [1023]uint8
 }
 
+type RawSockaddrDatalink struct {
+	Len    uint8
+	Family uint8
+	Index  uint16
+	Type   uint8
+	Nlen   uint8
+	Alen   uint8
+	Slen   uint8
+	Data   [120]uint8
+}
+
 type RawSockaddr struct {
 	Len    uint8
 	Family uint8
@@ -210,6 +221,7 @@ const (
 	SizeofSockaddrInet6    = 0x1c
 	SizeofSockaddrAny      = 0x404
 	SizeofSockaddrUnix     = 0x401
+	SizeofSockaddrDatalink = 0x80
 	SizeofLinger           = 0x8
 	SizeofIPMreq           = 0x8
 	SizeofIPv6Mreq         = 0x14