diff options
Diffstat (limited to 'plugin/pkg/dnsutil/host.go')
| -rw-r--r-- | plugin/pkg/dnsutil/host.go | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/plugin/pkg/dnsutil/host.go b/plugin/pkg/dnsutil/host.go index aaab586e8..b03b39586 100644 --- a/plugin/pkg/dnsutil/host.go +++ b/plugin/pkg/dnsutil/host.go @@ -5,15 +5,21 @@ import ( "net" "os" + "github.com/coredns/coredns/plugin/pkg/transport" + "github.com/miekg/dns" ) -// ParseHostPortOrFile parses the strings in s, each string can either be a address, -// address:port or a filename. The address part is checked and the filename case a -// resolv.conf like file is parsed and the nameserver found are returned. +// ParseHostPortOrFile parses the strings in s, each string can either be a +// address, [scheme://]address:port or a filename. The address part is checked +// and in case of filename a resolv.conf like file is (assumed) and parsed and +// the nameservers found are returned. func ParseHostPortOrFile(s ...string) ([]string, error) { var servers []string - for _, host := range s { + for _, h := range s { + + trans, host := transport.Parse(h) + addr, _, err := net.SplitHostPort(host) if err != nil { // Parse didn't work, it is not a addr:port combo @@ -26,13 +32,23 @@ func ParseHostPortOrFile(s ...string) ([]string, error) { } return servers, fmt.Errorf("not an IP address or file: %q", host) } - ss := net.JoinHostPort(host, "53") + var ss string + switch trans { + case transport.DNS: + ss = net.JoinHostPort(host, "53") + case transport.TLS: + ss = transport.TLS + "://" + net.JoinHostPort(host, transport.TLSPort) + case transport.GRPC: + ss = transport.GRPC + "://" + net.JoinHostPort(host, transport.GRPCPort) + case transport.HTTPS: + ss = transport.HTTPS + "://" + net.JoinHostPort(host, transport.HTTPSPort) + } servers = append(servers, ss) continue } if net.ParseIP(addr) == nil { - // No an IP address. + // Not an IP address. ss, err := tryFile(host) if err == nil { servers = append(servers, ss...) @@ -40,7 +56,7 @@ func ParseHostPortOrFile(s ...string) ([]string, error) { } return servers, fmt.Errorf("not an IP address or file: %q", host) } - servers = append(servers, host) + servers = append(servers, h) } return servers, nil } |