From 25c9e538b18f079262ab928ce273ad0fbf09b310 Mon Sep 17 00:00:00 2001
From: Julien Palard <julien@palard.fr>
Date: Mon, 17 Apr 2023 12:04:44 +0200
Subject: [PATCH] digns

---
 .bashrc | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/.bashrc b/.bashrc
index 160d20b..2019abd 100644
--- a/.bashrc
+++ b/.bashrc
@@ -216,3 +216,21 @@ download-random-pypi-proj()
     cd /tmp/$TMP
     wget "$ARCHIVE_URL"
 }
+
+digns()
+{
+    local SOA=""
+    local name="$1"
+
+    while [ -z "$SOA" ]
+    do
+        SOA="$(dig SOA "$name" | awk '/^[^;].*SOA/{print $1}')"
+        name="$(printf "%s" "$name" | sed 's/^[^.]\+\.//')"
+        if [[ -z "$SOA" ]] && ! [[ "$name" =~ \. ]]
+        then
+            printf "Cannot find SOA for %s.\n" "$1" >&2
+            return 1
+        fi
+    done
+    dig "@$(dig NS "$SOA" +short | head -n 1)" "$@"
+}