fix

CMakeLists.txt

@@ -5,7 +5,7 @@ set(CMAKE_CXX_STANDARD 23)
 
 add_executable(tun main.cpp)
 
-target_link_libraries(tun -static-libgcc -static-libstdc++)
+target_link_libraries(tun -static)
 
 find_package(Threads REQUIRED)
 target_link_libraries(tun Threads::Threads)

main.cpp

@@ -84,8 +84,8 @@ int main(int argc, char *argv[]) {
     }
 
     ifreq ifr{};
-    ifr.ifr_flags = IFF_TUN | IFF_NO_PI | IFF_UP;
-    strcpy(ifr.ifr_name, args["dev"].as<std::string>().c_str());
+    ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
+    strncpy(ifr.ifr_name, args["dev"].as<std::string>().c_str(), IFNAMSIZ);
     remote = inet_addr(args["IP"].as<std::string>().c_str());
 
     auto raw = socket(AF_INET, SOCK_RAW, IPPROTO_IPIP);