From 5ee06f79cdf03deb8cf2d82b4042bdeeb8050d1f Mon Sep 17 00:00:00 2001
From: "Aaron J. McPhall" <amcphall@lanl.gov>
Date: Fri, 4 Nov 2011 10:48:58 -0600
Subject: [PATCH] Fixed condition in playfair where xx -> XX XX

---
 packages/playfair/src/playfair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/playfair/src/playfair.c b/packages/playfair/src/playfair.c
index abd1667..f87f272 100644
--- a/packages/playfair/src/playfair.c
+++ b/packages/playfair/src/playfair.c
@@ -158,7 +158,7 @@ run(char* key) {
       }
     } else if (91 <= tmp && tmp <= 122) {
       if (existing) {
-        if (tmp == buf[0]) {
+        if (tmp == buf[0] && tmp != 'x') {
           buf[1] = 'x';
           swapchar(key, buf);
           printcrap(buf);