File openssh-5.1p1-strnvis.diff of Package openssh

--- sshconnect2.c
+++ sshconnect2.c
@@ -387,11 +387,11 @@
 	debug3("input_userauth_banner");
 	raw = packet_get_string(&len);
 	lang = packet_get_string(NULL);
-	if (options.log_level >= SYSLOG_LEVEL_INFO) {
+	if (len > 0 && options.log_level >= SYSLOG_LEVEL_INFO) {
 		if (len > 65536)
 			len = 65536;
-		msg = xmalloc(len * 4); /* max expansion from strnvis() */
-		strnvis(msg, raw, len * 4, VIS_SAFE|VIS_OCTAL);
+		msg = xmalloc(len * 4 + 1); /* max expansion from strnvis() */
+		strnvis(msg, raw, len * 4 + 1, VIS_SAFE|VIS_OCTAL|VIS_NOSLASH);
 		fprintf(stderr, "%s", msg);
 		xfree(msg);
 	}