code: исправление ошибок в работе с сетевой загрузкой данных

project/main.cpp

@@ -31,7 +31,10 @@ input_data(istream& in, bool promt)
     {
         in >> ik.numbers[i];
     }
-    cerr << "Enter bin count: ";
+    if (promt)
+    {
+        cerr << "Enter bin count: ";
+    }
     in>> ik.bin_count;
     return ik;
 }
@@ -40,8 +43,8 @@ size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx)
 {
     size_t data_size = item_size * item_count;
     stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
-    buffer->write(static_cast<const char*>(items), data_size);
+    buffer->write(reinterpret_cast<const char*>(items), data_size);
-    return 0;
+    return data_size;
 }
 
 
@@ -53,18 +56,18 @@ download(const string& address)
     if(curl)
     {
         CURLcode res;
-        curl_easy_setopt(curl, CURLOPT_URL, address);
+        curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
+        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
         res = curl_easy_perform(curl);
-        curl_easy_cleanup(curl);
         if (res != CURLE_OK)
         {
             fprintf(stderr, "curl_easy_perform() failed: %s\n",curl_easy_strerror(res));
             exit(1);
         }
-    }
+        curl_easy_cleanup(curl);
-    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
 
+    }
     return input_data(buffer, false);
 }