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Fix GetNameServerAsCIDR

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- the function is broken as it does not strip the
  zone id from an IPv6 nameserver address, and it
  returns the IPv6 address with /32

Signed-off-by: Alessandro Boch <aboch@docker.com>
This commit is contained in:
Alessandro Boch 2017-01-25 22:41:18 -08:00
parent 66197b7787
commit 53c84ac767
1 changed files with 8 additions and 1 deletions
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9
libnetwork/resolvconf/resolvconf.go
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@ -178,7 +178,14 @@ func GetNameservers(resolvConf []byte, kind int) []string {
func GetNameserversAsCIDR(resolvConf []byte) []string {
nameservers := []string{}
for _, nameserver := range GetNameservers(resolvConf, types.IP) {
nameservers = append(nameservers, nameserver+"/32")
var address string
// If IPv6, strip zone if present
if strings.Contains(nameserver, ":") {
address = strings.Split(nameserver, "%")[0] + "/128"
} else {
address = nameserver + "/32"
}
nameservers = append(nameservers, address)
}
return nameservers
}