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net: fix /proc/net/igmp,igmp6 reading bug on linux
Fixes #2130. R=rsc, dave CC=golang-dev https://golang.org/cl/4846044
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@ -190,10 +190,8 @@ func newAddr(attrs []syscall.NetlinkRouteAttr, family int) []Addr {
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// addresses for a specific interface.
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func interfaceMulticastAddrTable(ifindex int) ([]Addr, os.Error) {
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var (
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ifi *Interface
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err os.Error
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ifmat4 []Addr
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ifmat6 []Addr
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ifi *Interface
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err os.Error
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)
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if ifindex > 0 {
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@ -203,20 +201,13 @@ func interfaceMulticastAddrTable(ifindex int) ([]Addr, os.Error) {
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}
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}
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ifmat4, err = parseProcNetIGMP(ifi)
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if err != nil {
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return nil, err
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}
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ifmat6, err = parseProcNetIGMP6(ifi)
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if err != nil {
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return nil, err
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}
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ifmat4 := parseProcNetIGMP(ifi)
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ifmat6 := parseProcNetIGMP6(ifi)
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return append(ifmat4, ifmat6...), nil
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}
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func parseProcNetIGMP(ifi *Interface) ([]Addr, os.Error) {
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func parseProcNetIGMP(ifi *Interface) []Addr {
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var (
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ifmat []Addr
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name string
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@ -224,7 +215,7 @@ func parseProcNetIGMP(ifi *Interface) ([]Addr, os.Error) {
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fd, err := open("/proc/net/igmp")
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if err != nil {
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return nil, err
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return nil
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}
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defer fd.close()
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@ -244,15 +235,15 @@ func parseProcNetIGMP(ifi *Interface) ([]Addr, os.Error) {
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}
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}
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return ifmat, nil
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return ifmat
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}
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func parseProcNetIGMP6(ifi *Interface) ([]Addr, os.Error) {
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func parseProcNetIGMP6(ifi *Interface) []Addr {
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var ifmat []Addr
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fd, err := open("/proc/net/igmp6")
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if err != nil {
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return nil, err
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return nil
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}
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defer fd.close()
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@ -267,5 +258,5 @@ func parseProcNetIGMP6(ifi *Interface) ([]Addr, os.Error) {
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}
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}
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return ifmat, nil
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return ifmat
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}
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