From 7a0a6321f2eb83f37859b538b06f407794522199 Mon Sep 17 00:00:00 2001
From: Juha Heinanen <jh@tutpro.com>
Date: Thu, 13 Dec 2018 04:05:26 +0200
Subject: [PATCH] allow domain name label to start with a digit

---
 app/src/main/kotlin/com/tutpro/baresip/Utils.kt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
index 574c3f28..698563c0 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
@@ -149,8 +149,8 @@ object Utils {
     fun checkDomain(domain: String): Boolean {
         val parts = domain.split(".")
         for (p in parts) {
-            if ((p.length == 0) || p.endsWith("-") ||
-                    !Regex("^[a-zA-z]([-a-zA-Z0-9])*\$").matches(p))
+            if (p.endsWith("-") || p.startsWith("-") ||
+                    !Regex("^[-a-zA-Z0-9]+\$").matches(p))
                 return false
         }
         return true