From: lyq140 <34637052+lyq140@users.noreply.github.com>
Date: Mon, 6 Aug 2018 02:46:58 +0000 (+0800)
Subject: ripd: fix packet sending
X-Git-Tag: frr-6.1-dev~83^2~1
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=ac000da998362c07be0e045b92a38f439444603a;p=matthieu%2Ffrr.git

ripd: fix packet sending

fix a bug when sending a rip packet.
in authenticate mode but without any string,
no packet should send.

Signed-off-by: lyq140 <34637052+lyq140@users.noreply.github.com>
---

diff --git a/ripd/ripd.c b/ripd/ripd.c
index f7d6d3d929..dea3e40ae3 100644
--- a/ripd/ripd.c
+++ b/ripd/ripd.c
@@ -2101,6 +2101,9 @@ void rip_output_process(struct connected *ifc, struct sockaddr_in *to,
 		/* to be passed to auth functions later */
 		rip_auth_prepare_str_send(ri, key, auth_str,
 					  RIP_AUTH_SIMPLE_SIZE);
+        if (0 == strlen(auth_str)) {
+            return;
+        }
 	}
 
 	if (version == RIPv1) {