1/* Copyright (C) 1998-2024 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 <errno.h>
19#include <stdlib.h>
20#include <unistd.h>
21
22/* Given the file descriptor of a master pty, return the pathname
23 of the associated slave. */
24
25char *
26ptsname (int fd __attribute__ ((unused)))
27{
28 __set_errno (ENOSYS);
29 return NULL;
30}
31
32int
33__ptsname_r (int fd __attribute__ ((unused)),
34 char *buf __attribute__ ((unused)),
35 size_t len __attribute__ ((unused)))
36{
37 __set_errno (ENOSYS);
38 return ENOSYS;
39}
40libc_hidden_def (__ptsname_r)
41weak_alias (__ptsname_r, ptsname_r)
42
43stub_warning(ptsname)
44stub_warning(ptsname_r)
45

source code of glibc/login/ptsname.c