From c618d6baac454feac8d09c0a307a5e70ae090326 Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Sat, 8 Feb 2020 18:57:57 +0000
Subject: [PATCH] uxpgnt --askpass: explicitly fflush(stdout) on exit.

I'm not really sure why that's necessary: by my understanding of the C
standard, it shouldn't be. But my observation is that when compiling
with {Address,Leak} Sanitiser enabled, pageant --askpass can somehow
manage to exit without having actually written the passphrase to its
standard output.
---
 unix/uxpgnt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/unix/uxpgnt.c b/unix/uxpgnt.c
index dbd52e24..7c0c474e 100644
--- a/unix/uxpgnt.c
+++ b/unix/uxpgnt.c
@@ -1192,6 +1192,8 @@ int main(int argc, char **argv)
             return 1;
 
         puts(passphrase);
+        fflush(stdout);
+
         smemclr(passphrase, strlen(passphrase));
         sfree(passphrase);
         return 0;