functions: fix resolve_gw treating IPv6 addresses as hostnames

IPv6 addresses like 2a03:5a00:c:20::122 contain hex letters (a-f), matching the *[a-zA-Z]* hostname pattern. Check for colon first to handle IPv6 as literal addresses. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

functions: fix resolve_gw treating IPv6 addresses as hostnames
0d13a4a8 · Vitaly Lipatov · 4f62bb79 · 0d13a4a8
Commit 0d13a4a8 authored Feb 18, 2026 by Vitaly Lipatov
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functions router/functions +1 -0

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--- a/router/functions
+++ b/router/functions
@@ -31,6 +31,7 @@ resolve_gw()
    local ipcmd="${2:-ip}"
    case "$val" in
        default) resolve_default_gw "$ipcmd" ;;
+        *:*) echo "$val" ;;
        *[a-zA-Z]*)
            if [ "$ipcmd" = "ip -6" ] ; then
                dig +short AAAA "$val" | grep -m1 ':'