re-enable config

Makefile

@@ -7,6 +7,7 @@ include $(GOROOT)/src/Make.inc
 
 TARG=dns
 GOFILES=\
+	config.go\
 	defaults.go\
 	dns.go\
 	dnssec.go\
@@ -20,7 +21,6 @@ GOFILES=\
 	tsig.go\
 	types.go\
 	xfr.go\
-#	config.go
 
 include $(GOROOT)/src/Make.pkg
 

config.go

@@ -3,9 +3,8 @@
 // license that can be found in the LICENSE file.
 
 // Read system DNS config from /etc/resolv.conf
+// Extend this further, but need to thinks about Conn
 
-// TODO: what to do with this code - we don't have a
-// structure to put it in
 package dns
 
 import (
@@ -17,19 +16,20 @@ import (
 )
 
 // See resolv.conf(5) on a Linux machine.
-// Set the resolver configuration from a /etc/resolv.conf like file.
-func (r *Resolver) FromFile(conf string) os.Error {
+// Parse a /etc/resolv.conf like file. For only
+// only return the nameservers with :53 added as a slice.
+func FromFile(conf string) ([]string, os.Error) {
 	file, err := os.Open(conf, os.O_RDONLY, 0)
 	defer file.Close()
 	if err != nil {
-		return err
+		return nil, err
 	}
 	b := bufio.NewReader(file)
-	r.Servers = make([]string, 3)[0:0] // small, but the standard limit
-	r.Search = make([]string, 0)
-	r.Ndots = 1
-	r.Timeout = 5
-	r.Attempts = 2
+	servers := make([]string, 3)[0:0] // small, but the standard limit
+	search := make([]string, 0)
+	ndots := 1; var _ = ndots
+	timeout := 5; var _ = timeout
+	attempts := 2; var _ = attempts
 	for line, ok := b.ReadString('\n'); ok == nil; line, ok = b.ReadString('\n') {
 		f := strings.Fields(line)
 		if len(f) < 1 {
@@ -37,7 +37,7 @@ func (r *Resolver) FromFile(conf string) os.Error {
 		}
 		switch f[0] {
 		case "nameserver": // add one name server
-			a := r.Servers
+			a := servers
 			n := len(a)
 			if len(f) > 1 && n < cap(a) {
 				// One more check: make sure server name is
@@ -50,23 +50,23 @@ func (r *Resolver) FromFile(conf string) os.Error {
 					fallthrough
 				case 4:
 					a = a[0 : n+1]
-					a[n] = name
-					r.Servers = a
+					a[n] = name + ":53"
+					servers = a
 				}
 			}
 
 		case "domain": // set search path to just this domain
 			if len(f) > 1 {
-				r.Search = make([]string, 1)
-				r.Search[0] = f[1]
+				search = make([]string, 1)
+				search[0] = f[1]
 			} else {
-				r.Search = make([]string, 0)
+				search = make([]string, 0)
 			}
 
 		case "search": // set search path to given servers
-			r.Search = make([]string, len(f)-1)
-			for i := 0; i < len(r.Search); i++ {
-				r.Search[i] = f[i+1]
+			search = make([]string, len(f)-1)
+			for i := 0; i < len(search); i++ {
+				search[i] = f[i+1]
 			}
 
 		case "options": // magic options
@@ -78,24 +78,24 @@ func (r *Resolver) FromFile(conf string) os.Error {
 					if n < 1 {
 						n = 1
 					}
-					r.Ndots = n
+					ndots = n
 				case len(s) >= 8 && s[:8] == "timeout:":
 					n, _ := strconv.Atoi(s[8:])
 					if n < 1 {
 						n = 1
 					}
-					r.Timeout = n
+					timeout = n
 				case len(s) >= 8 && s[:9] == "attempts:":
 					n, _ := strconv.Atoi(s[9:])
 					if n < 1 {
 						n = 1
 					}
-					r.Attempts = n
+					attempts = n
 				case s == "rotate":
 					/* not imp */
 				}
 			}
 		}
 	}
-	return nil
+	return servers, nil
 }