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 <sys/types.h>
19#include <termios.h>
20#include <unistd.h>
21#include <utmp.h>
22#include <pty.h>
23#include <shlib-compat.h>
24
25int
26__forkpty (int *pptmx, char *name, const struct termios *termp,
27 const struct winsize *winp)
28{
29 int ptmx, terminal, pid;
30
31 if (openpty (&ptmx, &terminal, name, termp, winp) == -1)
32 return -1;
33
34 switch (pid = __fork ())
35 {
36 case -1:
37 __close (ptmx);
38 __close (terminal);
39 return -1;
40 case 0:
41 /* Child. */
42 __close (ptmx);
43 if (login_tty (terminal))
44 _exit (1);
45
46 return 0;
47 default:
48 /* Parent. */
49 *pptmx = ptmx;
50 __close (terminal);
51
52 return pid;
53 }
54}
55versioned_symbol (libc, __forkpty, forkpty, GLIBC_2_34);
56libc_hidden_ver (__forkpty, forkpty)
57
58#if OTHER_SHLIB_COMPAT (libutil, GLIBC_2_0, GLIBC_2_34)
59compat_symbol (libutil, __forkpty, forkpty, GLIBC_2_0);
60#endif
61