From 45f533cbdd0bd9ea4b761ce68ffe10176caa9605 Mon Sep 17 00:00:00 2001 From: randomshell Date: Thu, 2 Jul 2020 10:56:37 +0000 Subject: [PATCH] Add validation for $SERVER_PUB_NIC --- wireguard-install.sh | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/wireguard-install.sh b/wireguard-install.sh index f99a521..53f59fe 100644 --- a/wireguard-install.sh +++ b/wireguard-install.sh @@ -63,8 +63,10 @@ function installWireGuard() { read -rp "IPv4 or IPv6 public address: " -e -i "$SERVER_PUB_IP" SERVER_PUB_IP # Detect public interface and pre-fill for the user - SERVER_PUB_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)" - read -rp "Public interface: " -e -i "$SERVER_PUB_NIC" SERVER_PUB_NIC + SERVER_NIC="$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1)" + until [[ "$SERVER_PUB_NIC" =~ ^[a-zA-Z0-9_]+$ ]]; do + read -rp "Public interface: " -e -i "$SERVER_NIC" SERVER_PUB_NIC + done until [[ "$SERVER_WG_NIC" =~ ^[a-zA-Z0-9_]+$ ]]; do read -rp "WireGuard interface name: " -e -i wg0 SERVER_WG_NIC