From fe210692fd0699e91d0194b44dc5faf278d90093 Mon Sep 17 00:00:00 2001
From: Tim Kosse <tim.kosse@filezilla-project.org>
Date: Tue, 11 Aug 2015 13:45:26 +0200
Subject: [PATCH] Detect end of string in fingerprint alignment.

This prevents writing past the end of the buffer should
ssh2_fingerprint ever return a fingerprint not containing a colon.
---
 windows/winpgnt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/windows/winpgnt.c b/windows/winpgnt.c
index 58b5af70..e9d91e3d 100644
--- a/windows/winpgnt.c
+++ b/windows/winpgnt.c
@@ -304,7 +304,7 @@ void keylist_update(void)
             pos = 0;
             while (1) {
                 pos += strcspn(listentry + pos, " :");
-                if (listentry[pos] == ':')
+                if (listentry[pos] == ':' || !listentry[pos])
                     break;
                 listentry[pos++] = '\t';
             }