===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/rsync/sender.c,v
retrieving revision 1.28.2.1
retrieving revision 1.29
diff -u -r1.28.2.1 -r1.29
--- src/usr.bin/rsync/sender.c	2021/11/09 13:41:24	1.28.2.1
+++ src/usr.bin/rsync/sender.c	2021/06/30 13:10:04	1.29
@@ -1,4 +1,4 @@
-/*	$Id: sender.c,v 1.28.2.1 2021/11/09 13:41:24 benno Exp $ */
+/*	$OpenBSD: sender.c,v 1.29 2021/06/30 13:10:04 claudio Exp $ */
 /*
  * Copyright (c) 2019 Kristaps Dzonsons <kristaps@bsd.lv>
  *
@@ -358,7 +358,7 @@
 {
 	struct flist	   *fl = NULL;
 	const struct flist *f;
-	size_t		    i, flsz = 0, phase = 0;
+	size_t		    i, flsz = 0, phase = 0, excl;
 	int		    rc = 0, c;
 	int32_t		    idx;
 	struct pollfd	    pfd[3];
@@ -393,9 +393,13 @@
 	}
 
 	/* Client sends zero-length exclusions if deleting. */
-	if (!sess->opts->server && sess->opts->del)
-		send_rules(sess, fdout);
 
+	if (!sess->opts->server && sess->opts->del &&
+	    !io_write_int(sess, fdout, 0)) {
+		ERRX1("io_write_int");
+		goto out;
+	}
+
 	/*
 	 * Then the file list in any mode.
 	 * Finally, the IO error (always zero for us).
@@ -423,8 +427,15 @@
 	 * This is always 0 for now.
 	 */
 
-	if (sess->opts->server)
-		recv_rules(sess, fdin);
+	if (sess->opts->server) {
+		if (!io_read_size(sess, fdin, &excl)) {
+			ERRX1("io_read_size");
+			goto out;
+		} else if (excl != 0) {
+			ERRX1("exclusion list is non-empty");
+			goto out;
+		}
+	}
 
 	/*
 	 * Set up our poll events.