From 21cc43fe6b22dbdb0c93324295e774cb3cbb8c91 Mon Sep 17 00:00:00 2001
From: rasul <rascul3@gmail.com>
Date: Wed, 25 Nov 2020 20:48:13 -0600
Subject: [PATCH] only try to get ip address if necessary

---
 he-ddns | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

diff --git a/he-ddns b/he-ddns
index bb1b2b4..6ac9120 100755
--- a/he-ddns
+++ b/he-ddns
@@ -50,18 +50,22 @@ done
 # shellcheck source=he-ddnsrc
 . "$config" || die $LINENO
 
-ipv4="$(curl -sSL4 "$ip_host")" || die $LINENO
-for domain in "${!DOMAINS4[@]}"; do
-	printf "%s :: " "$domain"
-	key=${DOMAINS4[$domain]}
-	curl -sSL4 "$url" -d "hostname=$domain" -d "password=$key" -d "myip=$ipv4" || die $LINENO
-	echo
-done
+if [[ -n "${DOMAINS4[*]}" ]]; then
+	ipv4="$(curl -sSL4 "$ip_host")" || die $LINENO
+	for domain in "${!DOMAINS4[@]}"; do
+		printf "%s :: " "$domain"
+		key=${DOMAINS4[$domain]}
+		curl -sSL4 "$url" -d "hostname=$domain" -d "password=$key" -d "myip=$ipv4" || die $LINENO
+		echo
+	done
+fi
 
-ipv6="$(curl -sSL6 "$ip_host")" || die $LINENO
-for domain in "${!DOMAINS6[@]}"; do
-	printf "%s :: " "$domain"
-	key=${DOMAINS6[$domain]}
-	curl -sSL6 "$url" -d "hostname=$domain" -d "password=$key" -d "myip=$ipv6" || die $LINENO
-	echo
-done
+if [[ -n "${DOMAINS6[*]}" ]]; then
+	ipv6="$(curl -sSL6 "$ip_host")" || die $LINENO
+	for domain in "${!DOMAINS6[@]}"; do
+		printf "%s :: " "$domain"
+		key=${DOMAINS6[$domain]}
+		curl -sSL6 "$url" -d "hostname=$domain" -d "password=$key" -d "myip=$ipv6" || die $LINENO
+		echo
+	done
+fi