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netutils: minor cleanups

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Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2020-10-31 17:57:38 +01:00
parent 888e75dfc9
commit ff141d366f
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GPG key ID: 76698F39D527CE8C
2 changed files with 5 additions and 9 deletions
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9
libnetwork/netutils/utils.go
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@ -72,8 +72,7 @@ func GetIfaceAddr(name string) (net.Addr, []net.Addr, error) {
if err != nil {
return nil, nil, err
}
var addrs4 []net.Addr
var addrs6 []net.Addr
var addrs4, addrs6 []net.Addr
for _, addr := range addrs {
ip := (addr.(*net.IPNet)).IP
if ip4 := ip.To4(); ip4 != nil {
@ -84,7 +83,7 @@ func GetIfaceAddr(name string) (net.Addr, []net.Addr, error) {
}
switch {
case len(addrs4) == 0:
return nil, nil, fmt.Errorf("Interface %v has no IPv4 addresses", name)
return nil, nil, fmt.Errorf("interface %v has no IPv4 addresses", name)
case len(addrs4) > 1:
fmt.Printf("Interface %v has more than 1 IPv4 address. Defaulting to using %v\n",
name, (addrs4[0].(*net.IPNet)).IP)
@ -173,9 +172,9 @@ func ParseAlias(val string) (string, string, error) {
if val == "" {
return "", "", errors.New("empty string specified for alias")
}
arr := strings.Split(val, ":")
arr := strings.SplitN(val, ":", 3)
if len(arr) > 2 {
return "", "", fmt.Errorf("bad format for alias: %s", val)
return "", "", errors.New("bad format for alias: " + val)
}
if len(arr) == 1 {
return val, val, nil

5
libnetwork/netutils/utils_linux.go
View file

@ -69,10 +69,7 @@ func GenerateIfaceName(nlh *netlink.Handle, prefix string, len int) (string, err
// list the first IPv4 address which does not conflict with other
// interfaces on the system.
func ElectInterfaceAddresses(name string) ([]*net.IPNet, []*net.IPNet, error) {
var (
v4Nets []*net.IPNet
v6Nets []*net.IPNet
)
var v4Nets, v6Nets []*net.IPNet
defer osl.InitOSContext()()