From e34c91ba188b946208dc1ec332987d674a45624e Mon Sep 17 00:00:00 2001
From: garywill <garywill@disroot.org>
Date: Sun, 27 Jul 2025 14:06:39 +0800
Subject: [PATCH] can_transmit_to_channel: limit freq integer part to 4 digits

---
 lnxrouter | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lnxrouter b/lnxrouter
index 7f3001e..1126d34 100755
--- a/lnxrouter
+++ b/lnxrouter
@@ -676,7 +676,7 @@ can_transmit_to_channel() {
     fi
 
     if [[ $USE_IWCONFIG -eq 0 ]]; then
-        CHANNEL_INFO=$(get_adapter_info "${IFACE}" | grep -E " ${CHANNEL_FREQ_FILTER}[0-9]+(\.[0-9]+){0,1} MHz \[${CHANNEL_NUM}\]")
+        CHANNEL_INFO=$(get_adapter_info "${IFACE}" | grep -E " ${CHANNEL_FREQ_FILTER}[0-9]{2}(\.[0-9]+){0,1} MHz \[${CHANNEL_NUM}\]")
         [[ -z "${CHANNEL_INFO}" ]] && return 1
         [[ "${CHANNEL_INFO}" == *no\ IR* ]] && return 2
         [[ "${CHANNEL_INFO}" == *disabled* ]] && return 3