From 1e271b664a4b7cfa1a7d41bef5b2018b2e842d0a Mon Sep 17 00:00:00 2001
From: Matthew Dillon <dillon@apollo.backplane.com>
Date: Fri, 27 Feb 2015 21:03:06 -0800
Subject: [PATCH] libdmsg - add safeties

* Preinitialize return counters to 0 as a safety.  Not required for proper
  operation.
---
 lib/libdmsg/crypto.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/libdmsg/crypto.c b/lib/libdmsg/crypto.c
index 88e48e3f03..55eca1e3c5 100644
--- a/lib/libdmsg/crypto.c
+++ b/lib/libdmsg/crypto.c
@@ -209,10 +209,12 @@ dmsg_crypto_gcm_encrypt_chunk(dmsg_ioq_t *ioq, char *ct, char *pt,
 	if (!ok)
 		goto fail;
 
+	u_len = 0;	/* safety */
 	ok = EVP_EncryptUpdate(&ioq->ctx, ct, &u_len, pt, in_size);
 	if (!ok)
 		goto fail;
 
+	f_len = 0;	/* safety */
 	ok = EVP_EncryptFinal(&ioq->ctx, ct + u_len, &f_len);
 	if (!ok)
 		goto fail;
-- 
2.11.4.GIT