--- a/libidav/methods.h	Sun Oct 07 09:14:03 2018 +0200
+++ b/libidav/methods.h	Thu Oct 11 19:29:45 2018 +0200
@@ -60,6 +60,8 @@
     char    *locktoken;
 };
 
+int dav_buffer_seek(UcxBuffer *b, curl_off_t offset, int origin);
+
 CURLcode do_propfind_request(
         DavSession *sn,
         UcxBuffer *request,
@@ -77,6 +79,7 @@
         DavBool create,
         void *data,
         dav_read_func read_func,
+        dav_seek_func seek_func,
         size_t length);
 
 UcxBuffer* create_allprop_propfind_request(void);