misc/mkstemp.c

   1 /* Copyright (C) 1998-2022 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, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <fcntl.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 #ifndef __GT_FILE
  23 # define __GT_FILE 0
  24 #endif
  25
  26 /* Generate a unique temporary file name from TEMPLATE.
  27    The last six characters of TEMPLATE must be "XXXXXX";
  28    they are replaced with a string that makes the filename unique.
  29    Then open the file and return a fd. */
  30 int
  31 mkstemp (char *template)
  32 {
  33   return __gen_tempname (template, 0, 0, __GT_FILE);
  34 }
  35
  36 #if !defined O_LARGEFILE || O_LARGEFILE == 0
  37 weak_alias (mkstemp, mkstemp64)
  38 #endif