1  /* Invoke unistd-like functions, but avoid some glitches.
       2  
       3     Copyright (C) 2001, 2003, 2005, 2009-2023 Free Software Foundation, Inc.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation, either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  /* Written by Paul Eggert and Eric Blake.  */
      19  
      20  int dup_safer (int);
      21  int fd_safer (int);
      22  int pipe_safer (int[2]);
      23  
      24  #if GNULIB_FD_SAFER_FLAG
      25  int dup_safer_flag (int, int);
      26  int fd_safer_flag (int, int);
      27  #endif
      28  
      29  #if GNULIB_PIPE2_SAFER
      30  int pipe2_safer (int[2], int);
      31  #endif