Do not return a pointer

app.go

@@ -114,7 +114,7 @@ func NewHeadscale(cfg Config) (*Headscale, error) {
 			return nil, err
 		}
 		h.cfg.DNSConfig.Routes = make(map[string][]dnstype.Resolver)
-		for _, d := range *magicDNSDomains {
+		for _, d := range magicDNSDomains {
 			h.cfg.DNSConfig.Routes[d.WithoutTrailingDot()] = nil
 		}
 	}

dns.go

@@ -28,7 +28,7 @@ import (
 
 // From the netmask we can find out the wildcard bits (the bits that are not set in the netmask).
 // This allows us to then calculate the subnets included in the subsequent class block and generate the entries.
-func generateMagicDNSRootDomains(ipPrefix netaddr.IPPrefix, baseDomain string) (*[]dnsname.FQDN, error) {
+func generateMagicDNSRootDomains(ipPrefix netaddr.IPPrefix, baseDomain string) ([]dnsname.FQDN, error) {
 	base, err := dnsname.ToFQDN(baseDomain)
 	if err != nil {
 		return nil, err
@@ -69,5 +69,5 @@ func generateMagicDNSRootDomains(ipPrefix netaddr.IPPrefix, baseDomain string) (
 		}
 		fqdns = append(fqdns, fqdn)
 	}
-	return &fqdns, nil
+	return fqdns, nil
 }

dns_test.go

@@ -11,7 +11,7 @@ func (s *Suite) TestMagicDNSRootDomains100(c *check.C) {
 	c.Assert(err, check.IsNil)
 
 	found := false
-	for _, domain := range *domains {
+	for _, domain := range domains {
 		if domain == "64.100.in-addr.arpa." {
 			found = true
 			break
@@ -20,7 +20,7 @@ func (s *Suite) TestMagicDNSRootDomains100(c *check.C) {
 	c.Assert(found, check.Equals, true)
 
 	found = false
-	for _, domain := range *domains {
+	for _, domain := range domains {
 		if domain == "100.100.in-addr.arpa." {
 			found = true
 			break
@@ -29,7 +29,7 @@ func (s *Suite) TestMagicDNSRootDomains100(c *check.C) {
 	c.Assert(found, check.Equals, true)
 
 	found = false
-	for _, domain := range *domains {
+	for _, domain := range domains {
 		if domain == "127.100.in-addr.arpa." {
 			found = true
 			break
@@ -44,7 +44,7 @@ func (s *Suite) TestMagicDNSRootDomains172(c *check.C) {
 	c.Assert(err, check.IsNil)
 
 	found := false
-	for _, domain := range *domains {
+	for _, domain := range domains {
 		if domain == "0.16.172.in-addr.arpa." {
 			found = true
 			break
@@ -53,7 +53,7 @@ func (s *Suite) TestMagicDNSRootDomains172(c *check.C) {
 	c.Assert(found, check.Equals, true)
 
 	found = false
-	for _, domain := range *domains {
+	for _, domain := range domains {
 		if domain == "255.16.172.in-addr.arpa." {
 			found = true
 			break