From 2d424c63cbe04bf66e70ea43d9ae4b5ce715456b Mon Sep 17 00:00:00 2001
From: Michael Chus <mike@mchus.pro>
Date: Sat, 28 Mar 2026 07:27:49 +0300
Subject: [PATCH] fix(netconf): accept interface number as input, not just name

User sees a numbered list but could only type the name.
Now numeric input is resolved to the interface name via awk NR==N.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 iso/overlay/usr/local/bin/netconf | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/iso/overlay/usr/local/bin/netconf b/iso/overlay/usr/local/bin/netconf
index 63d2aff..277713e 100755
--- a/iso/overlay/usr/local/bin/netconf
+++ b/iso/overlay/usr/local/bin/netconf
@@ -13,11 +13,22 @@ for iface in $IFACES; do
     i=$((i+1))
 done
 echo ""
-printf "Interface name [or Enter to pick first]: "
-read IFACE
-if [ -z "$IFACE" ]; then
+printf "Interface number or name [Enter = first]: "
+read INPUT
+
+if [ -z "$INPUT" ]; then
     IFACE=$(echo "$IFACES" | head -1)
+elif echo "$INPUT" | grep -qE '^[0-9]+$'; then
+    # Numeric input — resolve to name
+    IFACE=$(echo "$IFACES" | awk "NR==$INPUT")
+    if [ -z "$IFACE" ]; then
+        echo "Error: no interface with number $INPUT"
+        exit 1
+    fi
+else
+    IFACE="$INPUT"
 fi
+
 echo "Selected: $IFACE"
 echo ""
 echo "  1) DHCP"