From 023abb060f52cb2f401905dfbb4e2ce0af271273 Mon Sep 17 00:00:00 2001
From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Thu, 29 Jan 2015 23:48:13 +0000
Subject: [PATCH] Fix detached cryptobox.

---
 contrib/tweetnacl/tweetnacl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/contrib/tweetnacl/tweetnacl.c b/contrib/tweetnacl/tweetnacl.c
index b414ffc25..41eb3aeca 100644
--- a/contrib/tweetnacl/tweetnacl.c
+++ b/contrib/tweetnacl/tweetnacl.c
@@ -165,9 +165,10 @@ int crypto_stream_salsa20_xor2(u8 *c1, u8 *c2,const u8 *m1,const u8 *m2,u64 d1,u
 	  if (r > 0) {
 		  if (r <= b) {
 			  FOR(i,r) c[i] = (m?m[i]:0) ^ x[i];
-			  r = 0;
 			  m += r;
+			  c += r;
 			  b -= r;
+			  r = 0;
 		  }
 		  else {
 			  FOR(i,b) c[i] = (m?m[i]:0) ^ x[i];
-- 
2.39.5