misc/mktemp.c

   1 /* Copyright (C) 1998, 1999, 2000, 2007, 2009 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 /* Generate a unique temporary file name from TEMPLATE.
  23    The last six characters of TEMPLATE must be "XXXXXX";
  24    they are replaced with a string that makes the filename unique.  */
  25 char *
  26 mktemp (template)
  27      char *template;
  28 {
  29   if (__gen_tempname (template, 0, 0, __GT_NOCREATE) < 0)
  30     /* We return the null string if we can't find a unique file name.  */
  31     template[0] = '\0';
  32
  33   return template;
  34 }
  35
  36 link_warning (mktemp, "the use of `mktemp' is dangerous, better use `mkstemp'")