From b54437a480fed1c484df9335e1bbb2eaee7d1d98 Mon Sep 17 00:00:00 2001
From: Ruslan <ruslan@ruslan.xyz>
Date: Tue, 14 Apr 2026 11:04:15 +0300
Subject: [PATCH] Client: detect apt install candidate for resolvconf packages

---
 client/install_client.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/client/install_client.sh b/client/install_client.sh
index 9c665b1..e8c59b3 100755
--- a/client/install_client.sh
+++ b/client/install_client.sh
@@ -170,12 +170,19 @@ detect_client_lan_subnets() {
 }
 
 install_packages() {
+  pkg_has_install_candidate() {
+    local pkg="$1"
+    local candidate
+    candidate="$(apt-cache policy "$pkg" 2>/dev/null | awk '/Candidate:/ {print $2; exit}')"
+    [[ -n "$candidate" && "$candidate" != "(none)" ]]
+  }
+
   apt_install_if_missing wireguard wireguard-tools iproute2 openssh-client sshpass ca-certificates
 
   if ! command -v resolvconf >/dev/null 2>&1; then
-    if apt-cache show openresolv >/dev/null 2>&1; then
+    if pkg_has_install_candidate openresolv; then
       apt_install_if_missing openresolv
-    elif apt-cache show resolvconf >/dev/null 2>&1; then
+    elif pkg_has_install_candidate resolvconf; then
       apt_install_if_missing resolvconf
     else
       log_warn "Пакеты openresolv/resolvconf недоступны. DNS-строка в wg0.conf будет пропущена."