X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/0f78b81511be65d8fe21af1e6ac674f9e80ac29d..aac5cab80b9d4fc0adff2b72aeba2406176930ae:/compat.c

diff --git a/compat.c b/compat.c
index c8066bda..b22c983b 100644
--- a/compat.c
+++ b/compat.c
@@ -15,9 +15,9 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #include "rsync.h"
@@ -26,9 +26,11 @@ int remote_protocol = 0;
 
 extern int verbose;
 extern int am_server;
+extern int am_sender;
 extern int inplace;
 extern int fuzzy_basis;
 extern int read_batch;
+extern int max_delete;
 extern int checksum_seed;
 extern int basis_dir_cnt;
 extern int prune_empty_dirs;
@@ -75,6 +77,16 @@ void setup_protocol(int f_out,int f_in)
 		exit_cleanup(RERR_PROTOCOL);
 	}
 
+	if (protocol_version < 30) {
+		if (max_delete == 0 && am_sender) {
+			rprintf(FERROR,
+			    "--max-delete=0 requires protocol 30 or higher"
+			    " (negotiated %d).\n",
+			    protocol_version);
+			exit_cleanup(RERR_PROTOCOL);
+		}
+	}
+
 	if (protocol_version < 29) {
 		if (fuzzy_basis) {
 			rprintf(FERROR,