1  /* Copyright (C) 1998-2023 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 <unistd.h>
      20  #include <paths.h>
      21  #include <stdlib.h>
      22  
      23  /* Path to the master pseudo terminal cloning device.  */
      24  #define _PATH_DEVPTMX _PATH_DEV "ptmx"
      25  
      26  /* Open a master pseudo terminal and return its file descriptor.  */
      27  int
      28  __posix_openpt (int oflag)
      29  {
      30    return __open (_PATH_DEVPTMX, oflag);
      31  }
      32  weak_alias (__posix_openpt, posix_openpt)
      33  
      34  
      35  int
      36  __getpt (void)
      37  {
      38    return __posix_openpt (O_RDWR);
      39  }
      40  libc_hidden_def (__getpt)
      41  weak_alias (__getpt, getpt)