fix: some Windows APIs return error codes directly without using GetLastError

Author: Hackerl

src/os/net.cpp

@@ -78,7 +78,7 @@ std::expected<std::map<std::string, zero::os::net::Interface>, std::error_code>
             break;
 
         if (result != ERROR_BUFFER_OVERFLOW)
-            return std::unexpected{std::error_code{static_cast<int>(GetLastError()), std::system_category()}};
+            return std::unexpected{std::error_code{static_cast<int>(result), std::system_category()}};
 
         buffer = std::make_unique<std::byte[]>(size);
     }
@@ -95,8 +95,9 @@ std::expected<std::map<std::string, zero::os::net::Interface>, std::error_code>
 
         std::array<WCHAR, NDIS_IF_MAX_STRING_SIZE + 1> buf{};
 
-        if (ConvertInterfaceLuidToNameW(&adapter->Luid, buf.data(), buf.size()) != ERROR_SUCCESS)
-            return std::unexpected{std::error_code{static_cast<int>(GetLastError()), std::system_category()}};
+        if (const auto result = ConvertInterfaceLuidToNameW(&adapter->Luid, buf.data(), buf.size());
+            result != ERROR_SUCCESS)
+            return std::unexpected{std::error_code{static_cast<int>(result), std::system_category()}};
 
         const auto name = strings::encode(buf.data());
         Z_EXPECT(name);