init

internal/helpers.go

@@ -0,0 +1,20 @@
+package internal
+
+import "strings"
+
+func parseDNSToCheck(data string) []string {
+	out := make([]string, 0, strings.Count(data, ",")+1)
+	for _, dns := range strings.Split(data, ",") {
+		out = append(out, strings.TrimSpace(dns))
+	}
+	return out
+}
+
+func Contains[T comparable](haystack []T, needle T) bool {
+	for _, v := range haystack {
+		if v == needle {
+			return true
+		}
+	}
+	return false
+}