From aa5b4392aac99382d96be94782ae745e0a42484a Mon Sep 17 00:00:00 2001
From: Werner Koch <wk@gnupg.org>
Date: Wed, 25 Jun 2014 20:25:28 +0200
Subject: [PATCH] estream: Fix minor glitch in "%.*s" format.

* common/estream-printf.c (pr_string): Take care of non-nul terminated
strings.
---
 common/estream-printf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/estream-printf.c b/common/estream-printf.c
index 11e6d75fe..c03f70e3f 100644
--- a/common/estream-printf.c
+++ b/common/estream-printf.c
@@ -1209,7 +1209,9 @@ pr_string (estream_printf_out_t outfnc, void *outfncarg,
     string = "(null)";
   if (arg->precision >= 0)
     {
-      for (n=0,s=string; *s && n < arg->precision; s++)
+      /* Test for nul after N so that we can pass a non-nul terminated
+         string.  */
+      for (n=0,s=string; n < arg->precision && *s; s++)
         n++;
     }
   else