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net: tweak variable declarations

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R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/5617050
This commit is contained in:
Mikio Hara 2012-02-03 07:40:03 +09:00
parent 4b6cd239c5
commit c2331bb77e
1 changed files with 4 additions and 12 deletions
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16
src/pkg/net/interface_bsd.go
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@ -18,8 +18,6 @@ import (
// network interfaces. Otherwise it returns a mapping of a specific // network interfaces. Otherwise it returns a mapping of a specific
// interface. // interface.
func interfaceTable(ifindex int) ([]Interface, error) { func interfaceTable(ifindex int) ([]Interface, error) {
var ift []Interface
tab, err := syscall.RouteRIB(syscall.NET_RT_IFLIST, ifindex) tab, err := syscall.RouteRIB(syscall.NET_RT_IFLIST, ifindex)
if err != nil { if err != nil {
return nil, os.NewSyscallError("route rib", err) return nil, os.NewSyscallError("route rib", err)
@ -30,6 +28,7 @@ func interfaceTable(ifindex int) ([]Interface, error) {
return nil, os.NewSyscallError("route message", err) return nil, os.NewSyscallError("route message", err)
} }
var ift []Interface
for _, m := range msgs { for _, m := range msgs {
switch v := m.(type) { switch v := m.(type) {
case *syscall.InterfaceMessage: case *syscall.InterfaceMessage:
@ -42,18 +41,16 @@ func interfaceTable(ifindex int) ([]Interface, error) {
} }
} }
} }
return ift, nil return ift, nil
} }
func newLink(m *syscall.InterfaceMessage) ([]Interface, error) { func newLink(m *syscall.InterfaceMessage) ([]Interface, error) {
var ift []Interface
sas, err := syscall.ParseRoutingSockaddr(m) sas, err := syscall.ParseRoutingSockaddr(m)
if err != nil { if err != nil {
return nil, os.NewSyscallError("route sockaddr", err) return nil, os.NewSyscallError("route sockaddr", err)
} }
var ift []Interface
for _, s := range sas { for _, s := range sas {
switch v := s.(type) { switch v := s.(type) {
case *syscall.SockaddrDatalink: case *syscall.SockaddrDatalink:
@ -75,7 +72,6 @@ func newLink(m *syscall.InterfaceMessage) ([]Interface, error) {
ift = append(ift, ifi) ift = append(ift, ifi)
} }
} }
return ift, nil return ift, nil
} }
@ -103,8 +99,6 @@ func linkFlags(rawFlags int32) Flags {
// for all network interfaces. Otherwise it returns addresses // for all network interfaces. Otherwise it returns addresses
// for a specific interface. // for a specific interface.
func interfaceAddrTable(ifindex int) ([]Addr, error) { func interfaceAddrTable(ifindex int) ([]Addr, error) {
var ifat []Addr
tab, err := syscall.RouteRIB(syscall.NET_RT_IFLIST, ifindex) tab, err := syscall.RouteRIB(syscall.NET_RT_IFLIST, ifindex)
if err != nil { if err != nil {
return nil, os.NewSyscallError("route rib", err) return nil, os.NewSyscallError("route rib", err)
@ -115,6 +109,7 @@ func interfaceAddrTable(ifindex int) ([]Addr, error) {
return nil, os.NewSyscallError("route message", err) return nil, os.NewSyscallError("route message", err)
} }
var ifat []Addr
for _, m := range msgs { for _, m := range msgs {
switch v := m.(type) { switch v := m.(type) {
case *syscall.InterfaceAddrMessage: case *syscall.InterfaceAddrMessage:
@ -127,18 +122,16 @@ func interfaceAddrTable(ifindex int) ([]Addr, error) {
} }
} }
} }
return ifat, nil return ifat, nil
} }
func newAddr(m *syscall.InterfaceAddrMessage) (Addr, error) { func newAddr(m *syscall.InterfaceAddrMessage) (Addr, error) {
ifa := &IPNet{}
sas, err := syscall.ParseRoutingSockaddr(m) sas, err := syscall.ParseRoutingSockaddr(m)
if err != nil { if err != nil {
return nil, os.NewSyscallError("route sockaddr", err) return nil, os.NewSyscallError("route sockaddr", err)
} }
ifa := &IPNet{}
for i, s := range sas { for i, s := range sas {
switch v := s.(type) { switch v := s.(type) {
case *syscall.SockaddrInet4: case *syscall.SockaddrInet4:
@ -166,6 +159,5 @@ func newAddr(m *syscall.InterfaceAddrMessage) (Addr, error) {
} }
} }
} }
return ifa, nil return ifa, nil
} }