===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/cvs/add.c,v
retrieving revision 1.63
retrieving revision 1.64
diff -c -r1.63 -r1.64
*** src/usr.bin/cvs/add.c	2006/12/19 15:12:59	1.63
--- src/usr.bin/cvs/add.c	2006/12/19 15:15:14	1.64
***************
*** 1,4 ****
! /*	$OpenBSD: add.c,v 1.63 2006/12/19 15:12:59 joris Exp $	*/
  /*
   * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
   * Copyright (c) 2005, 2006 Xavier Santolaria <xsa@openbsd.org>
--- 1,4 ----
! /*	$OpenBSD: add.c,v 1.64 2006/12/19 15:15:14 joris Exp $	*/
  /*
   * Copyright (c) 2006 Joris Vink <joris@openbsd.org>
   * Copyright (c) 2005, 2006 Xavier Santolaria <xsa@openbsd.org>
***************
*** 111,116 ****
--- 111,119 ----
  		entry = xmalloc(CVS_ENT_MAXLINELEN);
  		l = snprintf(entry, CVS_ENT_MAXLINELEN,
  			    "D/%s/////", cf->file_name);
+ 		if (l == -1 || l >= CVS_ENT_MAXLINELEN)
+ 			fatal("cvs_add_entry: overflow");
+ 
  		entlist = cvs_ent_open(cf->file_wd);
  		cvs_ent_add(entlist, entry);
  		cvs_ent_close(entlist, ENT_SYNC);