De-indent dns.lookup

lib/dns.js

@@ -108,6 +108,7 @@ exports.getHostByAddr = function (address, family/*=4*/, callback) {
 // Easy DNS A/AAAA look up
 // lookup(domain, [family,] callback)
 exports.lookup = function (domain, family, callback) {
+  // parse arguments
   if (arguments.length === 2) {
     callback = family;
     family = undefined;
@@ -121,54 +122,59 @@ exports.lookup = function (domain, family, callback) {
       throw new Error('invalid argument: "family" must be 4 or 6');
     }
   }
+
   if (!domain) {
     callback(null, null, family === 6 ? 6 : 4);
     return;
   }
+
   var matchedFamily = net.isIP(domain);
   if (matchedFamily) {
     callback(null, domain, matchedFamily);
-  } else {
-    if (/\w\.local\.?$/.test(domain)) {
-      // ANNOYING: In the case of mDNS domains use NSS in the thread pool.
-      // I wish c-ares had better support.
-      process.binding('net').getaddrinfo(domain, 4, function (err, domains4) {
-        callback(err, domains4[0], 4);
-      });
-    } else {
-      if (family) {
-        // resolve names for explicit address family
-        var af = familyToSym(family);
-        channel.getHostByName(domain, af, function (err, domains) {
-          if (!err && domains && domains.length) {
-            if (family !== net.isIP(domains[0])) {
-              callback(new Error('not found'), []);
-            } else {
-              callback(null, domains[0], family);
-            }
-          } else {
-            callback(err, []);
-          }
-        });
+    return;
+  }
+
+  if (/\w\.local\.?$/.test(domain)) {
+    // ANNOYING: In the case of mDNS domains use NSS in the thread pool.
+    // I wish c-ares had better support.
+    process.binding('net').getaddrinfo(domain, 4, function (err, domains4) {
+      callback(err, domains4[0], 4);
+    });
+    return;
+  }
+
+  if (family) {
+    // resolve names for explicit address family
+    var af = familyToSym(family);
+    channel.getHostByName(domain, af, function (err, domains) {
+      if (!err && domains && domains.length) {
+        if (family !== net.isIP(domains[0])) {
+          callback(new Error('not found'), []);
+        } else {
+          callback(null, domains[0], family);
+        }
       } else {
-        // first resolve names for v4 and if that fails, try v6
-        channel.getHostByName(domain, dns.AF_INET, function (err, domains4) {
-          if (domains4 && domains4.length) {
-            callback(null, domains4[0], 4);
-          } else {
-            channel.getHostByName(domain, dns.AF_INET6,
-                                  function (err, domains6) {
-              if (domains6 && domains6.length) {
-                callback(null, domains6[0], 6);
-              } else {
-                callback(err, []);
-              }
-            });
-          }
-        });
+        callback(err, []);
       }
-    }
+    });
+    return
   }
+
+  // first resolve names for v4 and if that fails, try v6
+  channel.getHostByName(domain, dns.AF_INET, function (err, domains4) {
+    if (domains4 && domains4.length) {
+      callback(null, domains4[0], 4);
+    } else {
+      channel.getHostByName(domain, dns.AF_INET6,
+                            function (err, domains6) {
+        if (domains6 && domains6.length) {
+          callback(null, domains6[0], 6);
+        } else {
+          callback(err, []);
+        }
+      });
+    }
+  });
 };