+/* Output extra headers if configured with the `show.extra_headers'
+ * configuration option
+ */
+static void
+format_extra_headers_sprinter (sprinter_t *sp, GMimeMessage *message)
+{
+ GMimeHeaderList *header_list = g_mime_object_get_header_list (GMIME_OBJECT (message));
+
+ for (notmuch_config_values_t *extra_headers = notmuch_config_get_values (
+ sp->notmuch, NOTMUCH_CONFIG_EXTRA_HEADERS);
+ notmuch_config_values_valid (extra_headers);
+ notmuch_config_values_move_to_next (extra_headers)) {
+ GMimeHeader *header;
+ const char *header_name = notmuch_config_values_get (extra_headers);
+
+ header = g_mime_header_list_get_header (header_list, header_name);
+ if (header == NULL)
+ continue;
+
+ sp->map_key (sp, g_mime_header_get_name (header));
+ sp->string (sp, g_mime_header_get_value (header));
+ }
+}
+