diff options
Diffstat (limited to 'src/syscall/netlink_linux.go')
-rw-r--r-- | src/syscall/netlink_linux.go | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/src/syscall/netlink_linux.go b/src/syscall/netlink_linux.go index 0937ff797a..2d810705bf 100644 --- a/src/syscall/netlink_linux.go +++ b/src/syscall/netlink_linux.go @@ -55,14 +55,22 @@ func NetlinkRIB(proto, family int) ([]byte, error) { return nil, err } defer Close(s) - lsa := &SockaddrNetlink{Family: AF_NETLINK} - if err := Bind(s, lsa); err != nil { + sa := &SockaddrNetlink{Family: AF_NETLINK} + if err := Bind(s, sa); err != nil { return nil, err } wb := newNetlinkRouteRequest(proto, 1, family) - if err := Sendto(s, wb, 0, lsa); err != nil { + if err := Sendto(s, wb, 0, sa); err != nil { return nil, err } + lsa, err := Getsockname(s) + if err != nil { + return nil, err + } + lsanl, ok := lsa.(*SockaddrNetlink) + if !ok { + return nil, EINVAL + } var tab []byte rbNew := make([]byte, Getpagesize()) done: @@ -82,16 +90,7 @@ done: return nil, err } for _, m := range msgs { - lsa, err := Getsockname(s) - if err != nil { - return nil, err - } - switch v := lsa.(type) { - case *SockaddrNetlink: - if m.Header.Seq != 1 || m.Header.Pid != v.Pid { - return nil, EINVAL - } - default: + if m.Header.Seq != 1 || m.Header.Pid != lsanl.Pid { return nil, EINVAL } if m.Header.Type == NLMSG_DONE { |