1/* Copyright (C) 1994-2022 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 <hurd.h>
19#include <hurd/fd.h>
20
21/* Allocate a new file descriptor and install PORT in it. FLAGS are as for
22 `open'; only O_IGNORE_CTTY and O_CLOEXEC are meaningful.
23
24 If the descriptor table is full, set errno, and return -1.
25 If DEALLOC is nonzero, deallocate PORT first. */
26int
27_hurd_intern_fd (io_t port, int flags, int dealloc)
28{
29 int fd;
30 struct hurd_fd *d;
31
32 HURD_CRITICAL_BEGIN;
33 d = _hurd_alloc_fd (fd_ptr: &fd, first_fd: 0);
34 if (d != NULL)
35 {
36 _hurd_port2fd (d, port, flags);
37 __spin_unlock (&d->port.lock);
38 }
39 HURD_CRITICAL_END;
40
41 if (d == NULL)
42 {
43 if (dealloc)
44 __mach_port_deallocate (__mach_task_self (), port);
45 return -1;
46 }
47
48 return fd;
49}
50libc_hidden_def (_hurd_intern_fd)
51

source code of glibc/hurd/intern-fd.c