From: Paul Eggert <eggert@cs.ucla.edu>
Date: Fri, 8 Dec 2017 21:30:06 +0000 (-0800)
Subject: Fix core dump from (format "%#08x" n) patch
X-Git-Tag: emacs-27.0.90~6076
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=7367ea4fc78fd11683eb0b57b0337c575a6accc2;p=emacs.git

Fix core dump from (format "%#08x" n) patch

Problem reported by Glenn Morris (Bug#29609#13).
* src/editfns.c (styled_format): Null-terminate output,
as later code now expects this.
---

diff --git a/src/editfns.c b/src/editfns.c
index ebf6518994b..084d92346f5 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -4623,6 +4623,7 @@ styled_format (ptrdiff_t nargs, Lisp_Object *args, bool message)
 		  /* Don't use sprintf here, as it might mishandle prec.  */
 		  sprintf_buf[0] = XINT (arg);
 		  sprintf_bytes = prec != 0;
+		  sprintf_buf[sprintf_bytes] = '\0';
 		}
 	      else if (conversion == 'd' || conversion == 'i')
 		{