diff --git a/src/util.zig b/src/util.zig
index c75f5d2..fc6c8c3 100644
--- a/src/util.zig
+++ b/src/util.zig
@@ -7,19 +7,18 @@ const ArgError = error{
 };
 
 pub const IP_VER_ENUM = enum(u3) {
-    Both = 0,
     IPv4 = 4,
     IPv6 = 6,
 };
 
 pub const IPs = struct {
-    v4: [:0]const u8,
-    v6: [:0]const u8,
+    v4: []const u8,
+    v6: []const u8,
 };
 
 pub const Domain = struct {
     name: [:0]const u8,
-    labels: u4,
+    labels: [5][]const u8,
 };
 
 pub fn check_perms() !void {
@@ -38,7 +37,7 @@ pub fn get_input() !struct {
     const domain = try check_domain(domain_str);
 
     const ip_ver_str = args.next() orelse return ArgError.NotEnoughArgs;
-    const ip_ver = std.meta.intToEnum(IP_VER_ENUM, try std.fmt.parseInt(u3, ip_ver_str, 10)) catch return ArgError.InvalidAddressVer;
+    const ip_ver = std.meta.intToEnum(IP_VER_ENUM, std.fmt.parseInt(u3, ip_ver_str, 10) catch return ArgError.InvalidAddressVer) catch return ArgError.InvalidAddressVer;
 
     return .{ domain, ip_ver };
 }
@@ -46,15 +45,20 @@ pub fn get_input() !struct {
 fn check_domain(domain_str: [:0]const u8) !Domain {
     var domain = Domain{
         .name = domain_str,
-        .labels = 0,
+        .labels = [_][]const u8{&[_]u8{}} ** 5,
     };
     var labels = std.mem.split(u8, domain_str, ".");
     var last: []const u8 = "";
+    var i: usize = 0;
     while (labels.next()) |segment| {
+        if (i >= 5) {
+            return ArgError.BadDomain;
+        }
         last = segment;
-        domain.labels += 1;
+        domain.labels[i] = segment;
+        i += 1;
     }
-    if (domain.labels <= 1 or !std.mem.eql(u8, last, "local")) {
+    if (domain.labels.len <= 1 or !std.mem.eql(u8, last, "local")) {
         return ArgError.BadDomain;
     }
     return domain;