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Viewing changes to debian/gocode/src/golang.org/x/net/ipv4/sys_darwin.go

  • Committer: Horacio Durán
  • Date: 2017-01-20 16:21:20 UTC
  • Revision ID: horacio.duran@canonical.com-20170120162120-l82mfqwmsclnk838
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debian/gocode/src/golang.org/x/net/ipv4/sys_darwin.go
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import (
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        "net"
 
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        "strconv"
 
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        "strings"
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        "syscall"
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        "unsafe"
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)
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func init() {
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        // Seems like kern.osreldate is veiled on latest OS X. We use
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        // kern.osrelease instead.
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        osver, err := syscall.Sysctl("kern.osrelease")
 
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        s, err := syscall.Sysctl("kern.osrelease")
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        if err != nil {
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                return
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        }
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        var i int
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        for i = range osver {
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                if osver[i] == '.' {
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                        break
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                }
 
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        ss := strings.Split(s, ".")
 
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        if len(ss) == 0 {
 
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                return
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        }
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        // The IP_PKTINFO and protocol-independent multicast API were
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        // introduced in OS X 10.7 (Darwin 11.0.0). But it looks like
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        // those features require OS X 10.8 (Darwin 12.0.0) and above.
 
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        // introduced in OS X 10.7 (Darwin 11). But it looks like
 
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        // those features require OS X 10.8 (Darwin 12) or above.
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        // See http://support.apple.com/kb/HT1633.
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        if i > 2 || i == 2 && osver[0] >= '1' && osver[1] >= '2' {
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                ctlOpts[ctlPacketInfo].name = sysIP_PKTINFO
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                ctlOpts[ctlPacketInfo].length = sizeofInetPktinfo
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                ctlOpts[ctlPacketInfo].marshal = marshalPacketInfo
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                ctlOpts[ctlPacketInfo].parse = parsePacketInfo
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                sockOpts[ssoPacketInfo].name = sysIP_RECVPKTINFO
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                sockOpts[ssoPacketInfo].typ = ssoTypeInt
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                sockOpts[ssoMulticastInterface].typ = ssoTypeIPMreqn
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                sockOpts[ssoJoinGroup].name = sysMCAST_JOIN_GROUP
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                sockOpts[ssoJoinGroup].typ = ssoTypeGroupReq
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                sockOpts[ssoLeaveGroup].name = sysMCAST_LEAVE_GROUP
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                sockOpts[ssoLeaveGroup].typ = ssoTypeGroupReq
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                sockOpts[ssoJoinSourceGroup].name = sysMCAST_JOIN_SOURCE_GROUP
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                sockOpts[ssoJoinSourceGroup].typ = ssoTypeGroupSourceReq
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                sockOpts[ssoLeaveSourceGroup].name = sysMCAST_LEAVE_SOURCE_GROUP
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                sockOpts[ssoLeaveSourceGroup].typ = ssoTypeGroupSourceReq
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                sockOpts[ssoBlockSourceGroup].name = sysMCAST_BLOCK_SOURCE
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                sockOpts[ssoBlockSourceGroup].typ = ssoTypeGroupSourceReq
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                sockOpts[ssoUnblockSourceGroup].name = sysMCAST_UNBLOCK_SOURCE
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                sockOpts[ssoUnblockSourceGroup].typ = ssoTypeGroupSourceReq
 
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        if mjver, err := strconv.Atoi(ss[0]); err != nil || mjver < 12 {
 
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                return
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        }
 
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        ctlOpts[ctlPacketInfo].name = sysIP_PKTINFO
 
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        ctlOpts[ctlPacketInfo].length = sizeofInetPktinfo
 
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        ctlOpts[ctlPacketInfo].marshal = marshalPacketInfo
 
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        ctlOpts[ctlPacketInfo].parse = parsePacketInfo
 
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        sockOpts[ssoPacketInfo].name = sysIP_RECVPKTINFO
 
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        sockOpts[ssoPacketInfo].typ = ssoTypeInt
 
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        sockOpts[ssoMulticastInterface].typ = ssoTypeIPMreqn
 
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        sockOpts[ssoJoinGroup].name = sysMCAST_JOIN_GROUP
 
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        sockOpts[ssoJoinGroup].typ = ssoTypeGroupReq
 
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        sockOpts[ssoLeaveGroup].name = sysMCAST_LEAVE_GROUP
 
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        sockOpts[ssoLeaveGroup].typ = ssoTypeGroupReq
 
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        sockOpts[ssoJoinSourceGroup].name = sysMCAST_JOIN_SOURCE_GROUP
 
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        sockOpts[ssoJoinSourceGroup].typ = ssoTypeGroupSourceReq
 
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        sockOpts[ssoLeaveSourceGroup].name = sysMCAST_LEAVE_SOURCE_GROUP
 
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        sockOpts[ssoLeaveSourceGroup].typ = ssoTypeGroupSourceReq
 
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        sockOpts[ssoBlockSourceGroup].name = sysMCAST_BLOCK_SOURCE
 
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        sockOpts[ssoBlockSourceGroup].typ = ssoTypeGroupSourceReq
 
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        sockOpts[ssoUnblockSourceGroup].name = sysMCAST_UNBLOCK_SOURCE
 
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        sockOpts[ssoUnblockSourceGroup].typ = ssoTypeGroupSourceReq
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}
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func (pi *inetPktinfo) setIfindex(i int) {