Adapt main() to new interface_reader interfacegetter

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>

1 files changed, 14 insertions, 4 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 8346b7c..4a0ced7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -35,7 +35,7 @@ int main(int argc, const char** argv) {
 
     auto interface_filter_names = get_interface_names(args);
 
-    interface_reader reader(interface_filter_names);
+    interface_reader reader;
 
     auto error = reader.read_interfaces();
     if (error.has_value()) {
@@ -43,9 +43,19 @@ int main(int argc, const char** argv) {
         exit(1); // exit is okay because this is main.cpp
     }
 
-    auto ifs = reader.get_interfaces();
-    for (auto it = ifs.begin(); it != ifs.end(); it++) {
-        std::cout << it->get_name() << ": " << it->get_addr().value_or("interface has no address") << std::endl;
+
+    if (interface_filter_names.empty()) {
+        auto ifs = reader.get_interfaces();
+        for (auto it = ifs.begin(); it != ifs.end(); it++) {
+            std::cout << it->get_name() << ": " << it->get_addr().value_or("interface has no address") << std::endl;
+        }
+    } else {
+        for (auto name: interface_filter_names) {
+            auto interfaces_by_name = reader.get_interface_by_name(name);
+            for (interface& in: interfaces_by_name) {
+                std::cout << in.get_name() << ": " << in.get_addr().value_or("interface has no address") << std::endl;
+            }
+        }
     }
 
     return 0;