ddns-scripts: netcup.com adjust update error path

Adjust the update error handling path to avoid hard failures on
recoverable errors. This allows ddns to retry updates after the
configured retry interval and improves reliability.

Signed-off-by: Tim Flubshi <flubshi@gmail.com>

Author: Tim Flubshi

net/ddns-scripts/Makefile

@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ddns-scripts
 PKG_VERSION:=2.8.3
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_LICENSE:=GPL-2.0
 

net/ddns-scripts/files/usr/lib/ddns/update_netcup_com.sh

@@ -134,8 +134,10 @@ netcup_check_response() {
 
 	if [ "$__status" != "success" ]; then
 		json_cleanup
-		write_log 14 "netcup DDNS: $__context failed (status='$__status' code=$__statuscode): $__shortmsg"
+		write_log 3 "netcup DDNS: $__context failed (status='$__status' code=$__statuscode): $__shortmsg"
+		return 1
 	fi
+	return 0
 }
 
 # ---------------------------------------------------------------------------
@@ -154,16 +156,21 @@ json_add_object "param"
 	json_add_string "apipassword"    "$password"
 json_close_object
 
-netcup_post || write_log 14 "netcup DDNS: HTTP request failed during login"
-netcup_check_response "login"
+if ! netcup_post; then
+	write_log 3 "netcup DDNS: HTTP request failed during login"
+	return 1
+fi
+netcup_check_response "login" || return 1
 
 json_select "responsedata"
 json_get_var __SESSION_ID "apisessionid"
 json_select ".."
 json_cleanup
 
-[ -z "$__SESSION_ID" ] && \
-	write_log 14 "netcup DDNS: login succeeded but no session ID was returned"
+if [ -z "$__SESSION_ID" ]; then
+	write_log 3 "netcup DDNS: login succeeded but no session ID was returned"
+	return 1
+fi
 
 write_log 6 "netcup DDNS: login successful"
 
@@ -178,8 +185,11 @@ json_add_object "param"
 	json_add_string "apisessionid"   "$__SESSION_ID"
 json_close_object
 
-netcup_post || write_log 14 "netcup DDNS: HTTP request failed during infoDnsRecords"
-netcup_check_response "infoDnsRecords"
+if ! netcup_post; then
+	write_log 3 "netcup DDNS: HTTP request failed during infoDnsRecords"
+	return 1
+fi
+netcup_check_response "infoDnsRecords" || return 1
 
 # --- Step 3: Find the record matching our hostname and type ----------------
 #
@@ -216,8 +226,10 @@ done
 
 json_cleanup
 
-[ -z "$__MATCH_ID" ] && \
-	write_log 14 "netcup DDNS: no [$__RRTYPE] record found for hostname '$__REC_HOSTNAME' in zone '$__ZONE'"
+if [ -z "$__MATCH_ID" ]; then
+	write_log 3 "netcup DDNS: no [$__RRTYPE] record found for hostname '$__REC_HOSTNAME' in zone '$__ZONE'"
+	return 1
+fi
 
 # --- Step 4: Update the matched record with the new IP ---------------------
 
@@ -242,8 +254,12 @@ json_add_object "param"
 	json_close_object
 json_close_object
 
-netcup_post || write_log 14 "netcup DDNS: HTTP request failed during updateDnsRecords"
-netcup_check_response "updateDnsRecords"
+if ! netcup_post; then
+	write_log 3 "netcup DDNS: HTTP request failed during updateDnsRecords"
+	return 1
+fi
+
+netcup_check_response "updateDnsRecords" || return 1
 json_cleanup
 
 write_log 6 "netcup DDNS: '$__REC_HOSTNAME.$__ZONE' [$__RRTYPE] updated to $__IP"