login/ptsname.c

   1 /* Copyright (C) 1998-2015 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1998.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <stdlib.h>
  21 #include <unistd.h>
  22
  23 /* Given the file descriptor of a master pty, return the pathname
  24    of the associated slave. */
  25
  26 char *
  27 ptsname (fd)
  28      int fd __attribute__ ((unused));
  29 {
  30   __set_errno (ENOSYS);
  31   return NULL;
  32 }
  33
  34 int
  35 __ptsname_r (fd, buf, len)
  36      int fd __attribute__ ((unused));
  37      char *buf __attribute__ ((unused));
  38      size_t len __attribute__ ((unused));
  39 {
  40   __set_errno (ENOSYS);
  41   return ENOSYS;
  42 }
  43 weak_alias (__ptsname_r, ptsname_r)
  44
  45 stub_warning(ptsname)
  46 stub_warning(ptsname_r)