--- a/src/server/safs/service.c	Mon May 22 10:22:15 2023 +0200
+++ b/src/server/safs/service.c	Tue May 23 18:19:12 2023 +0200
@@ -275,6 +275,7 @@
     sfd.header = header;
     sfd.hlen = headerlen;
     sfd.trailer = NULL;
+    sfd.tlen = 0;
     
     while(remaining > 0) {
         size_t sflen = remaining < SF_MAX_LEN ? remaining : SF_MAX_LEN;