linux's dns hook is ok

src/bin/punchnet/main.rs

@@ -35,6 +35,7 @@ use sdlan_sn_rs::utils::Mac;
 use sdlan_sn_rs::utils::Result;
 use sdlan_sn_rs::utils::create_or_load_uuid;
 use tokio::runtime::Runtime;
+use tracing::debug;
 use tracing::error;
 
 use std::net::ToSocketAddrs;
@@ -248,13 +249,14 @@ async fn daemonize_me(
 
     let mut started = true;
     */
-
+    println!("waiting for ctrl-c");
     match tokio::signal::ctrl_c().await {
         Ok(()) => {
             edge.quic_endpoint.close(0u32.into(), "bye".as_bytes());
             println!("quic is quitting");
             delete_pid_file();
             let _ = restore_dns();
+            debug!("restored dns");
         }
         Err(err) => {
             eprintln!("failed to listen for shutdown signal: {}", err);
@@ -360,7 +362,9 @@ fn main() {
                         }
                     };
                     let result = unsafe {
-                        kill(pid, SIGTERM)
+                        use libc::SIGINT;
+
+                        kill(pid, SIGINT)
                     };
                     if result != 0 {
                         let err = io::Error::last_os_error();

src/network/tun_linux.rs

@@ -858,6 +858,7 @@ pub fn get_install_channel() -> String {
 }
 
 fn check_has_resolvectl() -> bool {
+    return false;
     let res = Command::new("resolvectl")
         .arg("status")
         .output();
@@ -947,10 +948,15 @@ pub fn modify_resolv_conf(new_nameservers: &[String], search_domain: &str, keep_
     let reader = BufReader::new(file);
     let mut lines = Vec::new();
 
+    for ns in new_nameservers {
+        lines.push(format!("nameserver {}", ns))
+    }
+    /* 
     let mut inserted = false;
     let mut encounted_nameserver = false;
     let mut search_added = false;
 
+
     for line in reader.lines() {
         let line = line?;
         let trimmed = line.trim();
@@ -982,6 +988,7 @@ pub fn modify_resolv_conf(new_nameservers: &[String], search_domain: &str, keep_
     if !search_added {
         lines.push(format!("search {}", search_domain));
     }
+    */
 
     // 原子写入：先写临时文件
     let tmp_dir = Path::new("/etc");
@@ -992,6 +999,8 @@ pub fn modify_resolv_conf(new_nameservers: &[String], search_domain: &str, keep_
     }
     tmp_file.flush()?;
 
+    debug!("added to /etc/resolve.conf: {:?}", lines);
+
     // 设置权限
     fs::set_permissions(&tmp_path, perms)?;
     #[cfg(unix)]