From 809c0bede7a5ae970eb7eae723317cf5e71a6867 Mon Sep 17 00:00:00 2001
From: DDDHuang <44492639+DDDHuang@users.noreply.github.com>
Date: Thu, 19 May 2022 09:52:00 +0800
Subject: [PATCH] fix: check node name, regular expression

---
 bin/emqx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bin/emqx b/bin/emqx
index bc9cc1ea7..8aaec26bd 100755
--- a/bin/emqx
+++ b/bin/emqx
@@ -690,6 +690,11 @@ esac
 SHORT_NAME="$(echo "$NAME" | awk -F'@' '{print $1}')"
 export ESCRIPT_NAME="$SHORT_NAME"
 
+if ! (echo "$SHORT_NAME" | grep -q '^[0-9A-Za-z_\-]\+$'); then
+    echo "Invalid node name, should be of format '^[0-9A-Za-z_-]+$'."
+    exit 1
+fi
+
 PIPE_DIR="${PIPE_DIR:-/$DATA_DIR/${WHOAMI}_erl_pipes/$NAME/}"
 
 ## make EMQX_NODE_COOKIE right