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Fix parsing of proto/port

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Signed-off-by: Doug Davis <dug@us.ibm.com>
This commit is contained in:
Doug Davis 2014-09-11 16:32:09 -07:00
parent ed7fb3bbda
commit 658a9d0f47
2 changed files with 28 additions and 12 deletions
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28
nat/nat.go
View file

@ -61,21 +61,25 @@ func (p Port) Int() int {
return i return i
} }
// Splits a port in the format of port/proto // Splits a port in the format of proto/port
func SplitProtoPort(rawPort string) (string, string) { func SplitProtoPort(rawPort string) (string, string) {
parts := strings.Split(rawPort, "/") var port string
l := len(parts) var proto string
if l == 0 {
return "", ""
}
if l == 1 {
if rawPort == "" {
return "", "" // ""/tcp is not valid, ever
}
return "tcp", rawPort parts := strings.Split(rawPort, "/")
if len(parts) == 0 || parts[0] == "" { // we have "" or ""/
port = ""
proto = ""
} else { // we have # or #/ or #/...
port = parts[0]
if len(parts) > 1 && parts[1] != "" {
proto = parts[1] // we have #/...
} else {
proto = "tcp" // we have # or #/
} }
return parts[1], parts[0] }
return proto, port
} }
func validateProto(proto string) bool { func validateProto(proto string) bool {

12
nat/nat_test.go
View file

@ -84,6 +84,18 @@ func TestSplitProtoPort(t *testing.T) {
if proto != "tcp" || port != "1234" { if proto != "tcp" || port != "1234" {
t.Fatal("tcp is not the default protocol for portspec '1234'") t.Fatal("tcp is not the default protocol for portspec '1234'")
} }
proto, port = SplitProtoPort("1234/")
if proto != "tcp" || port != "1234" {
t.Fatal("parsing '1234/' yielded:" + port + "/" + proto)
}
proto, port = SplitProtoPort("/tcp")
if proto != "" || port != "" {
t.Fatal("parsing '/tcp' yielded:" + port + "/" + proto)
}
} }
func TestParsePortSpecs(t *testing.T) { func TestParsePortSpecs(t *testing.T) {