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[release-branch.go1.4] syscall: fix the deprecated way of parsing routing message on openbsd 

OpenBSD 5.5 changed its kernel ABI and OpenBSD 5.6 enabled it.
This CL works on both 5.5 and 5.6.

Fixes #9102.

Change-Id: I4a295be9ab8acbc99e550d8cb7e8f8dacf3a03c5
Reviewed-on: https://go-review.googlesource.com/1932
Reviewed-by: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit 13e16b39fc)
Reviewed-on: https://go-review.googlesource.com/2826
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Mikio Hara 2014-12-22 12:30:16 +09:00 committed by Russ Cox
parent ac15ad8a38
commit cece1bd03f
1 changed files with 3 additions and 3 deletions
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6
src/syscall/route_openbsd.go
View File

@ -12,16 +12,16 @@ func (any *anyMessage) toRoutingMessage(b []byte) RoutingMessage {
switch any.Type {
case RTM_ADD, RTM_DELETE, RTM_CHANGE, RTM_GET, RTM_LOSING, RTM_REDIRECT, RTM_MISS, RTM_LOCK, RTM_RESOLVE:
p := (*RouteMessage)(unsafe.Pointer(any))
return &RouteMessage{Header: p.Header, Data: b[SizeofRtMsghdr:any.Msglen]}
return &RouteMessage{Header: p.Header, Data: b[p.Header.Hdrlen:any.Msglen]}
case RTM_IFINFO:
p := (*InterfaceMessage)(unsafe.Pointer(any))
return &InterfaceMessage{Header: p.Header, Data: b[SizeofIfMsghdr:any.Msglen]}
return &InterfaceMessage{Header: p.Header, Data: b[p.Header.Hdrlen:any.Msglen]}
case RTM_IFANNOUNCE:
p := (*InterfaceAnnounceMessage)(unsafe.Pointer(any))
return &InterfaceAnnounceMessage{Header: p.Header}
case RTM_NEWADDR, RTM_DELADDR:
p := (*InterfaceAddrMessage)(unsafe.Pointer(any))
return &InterfaceAddrMessage{Header: p.Header, Data: b[SizeofIfaMsghdr:any.Msglen]}
return &InterfaceAddrMessage{Header: p.Header, Data: b[p.Header.Hdrlen:any.Msglen]}
}
return nil
}