Обработка ошибок

main.cpp

@@ -53,13 +53,20 @@ int main(int argc, char* argv[])
         const char *url = argv[1];
 
         CURL *curl = curl_easy_init();
-        if (curl)
+                if (curl) {
-        {
             curl_easy_setopt(curl, CURLOPT_URL, url);
             curl_easy_perform(curl);
+
+            CURLcode res = curl_easy_perform(curl);
+            if (res != CURLE_OK) {
+                cerr << "curl_easy_perform() failed: " << curl_easy_strerror(res) << endl;
+                exit(1);
+            }
+
             curl_easy_cleanup(curl);
-            return 0;
         }
+
+        return 0;
     }
 
     auto in = input_data(cin,true);