From 6a4aad1aa8287c3362b566d7216ea92416f2e7d9 Mon Sep 17 00:00:00 2001
From: linux-insideDE <39219399+linux-insideDE@users.noreply.github.com>
Date: Tue, 15 May 2018 14:38:29 +0200
Subject: [PATCH] replaced increment/decrement with _math function

---
 dnsapi/dns_netcup.sh | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/dnsapi/dns_netcup.sh b/dnsapi/dns_netcup.sh
index 7a8002a..2e31e13 100644
--- a/dnsapi/dns_netcup.sh
+++ b/dnsapi/dns_netcup.sh
@@ -36,7 +36,7 @@ dns_netcup_add() {
 				break;
 			fi
 		fi		
-		i=$((i - 1))
+		i=$(_math "$i" - 1)
 	done	
 	inc=""
 	i=1	
@@ -52,7 +52,7 @@ dns_netcup_add() {
 				inc="$inc$i,"			
 			fi			
 		fi	
-		i=$((i + 1))
+		i=$(_math "$i" + 1)
 	done
 	
 	tmp=$(echo "$fulldomain" | cut -d'.' -f$inc)
@@ -85,7 +85,7 @@ dns_netcup_rm() {
 				break;
 			fi
 		fi
-		i=$((i - 1))
+		i=$(_math "$i" - 1)
 	done
 	inc=""	
 	i=1	
@@ -101,7 +101,7 @@ dns_netcup_rm() {
 				inc="$inc$i,"
 			fi
 		fi
-		i=$((i + 1))
+		i=$(_math "$i" + 1)
 	done
 	tmp=$(echo "$fulldomain" | cut -d'.' -f$inc)	
 	doma="$domain.$tld"