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From: Garrett Cooper <ngie@FreeBSD.org>
Date: Fri, 13 May 2016 08:41:09 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r299623 - stable/10/sys/dev/pty
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Author: ngie
Date: Fri May 13 08:41:09 2016
New Revision: 299623
URL: https://svnweb.freebsd.org/changeset/base/299623

Log:
  MFC r298337:
  r298337 (by cem):
  
  pty(4): Use strlcpy to guarantee destination buffer isn't overrun
  
  The devtoname() name is strcpyed into a small stack buffer.  Sure, we always
  expect the name to be ttyXX (or ptyXX).  If that's the case, strlcpy() doesn't
  hurt.
  
  CID:		1006768

Modified:
  stable/10/sys/dev/pty/pty.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/dev/pty/pty.c
==============================================================================
--- stable/10/sys/dev/pty/pty.c	Fri May 13 08:39:33 2016	(r299622)
+++ stable/10/sys/dev/pty/pty.c	Fri May 13 08:41:09 2016	(r299623)
@@ -67,7 +67,7 @@ ptydev_fdopen(struct cdev *dev, int ffla
 		return (EBUSY);
 
 	/* Generate device name and create PTY. */
-	strcpy(name, devtoname(dev));
+	strlcpy(name, devtoname(dev), sizeof(name));
 	name[0] = 't';
 
 	error = pts_alloc_external(fflags & (FREAD|FWRITE), td, fp, dev, name);