1/* Copyright (C) 1992-2024 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 <sys/socket.h>
20#include <hurd.h>
21#include <hurd/socket.h>
22#include <hurd/fd.h>
23#include <fcntl.h>
24#include <fcntl-internal.h>
25
26/* Create a new socket of type TYPE in domain DOMAIN, using
27 protocol PROTOCOL. If PROTOCOL is zero, one is chosen automatically.
28 Returns a file descriptor for the new socket, or -1 for errors. */
29int
30__socket (int domain, int type, int protocol)
31{
32 error_t err;
33 socket_t sock, server;
34 int flags = sock_to_o_flags (type & ~SOCK_TYPE_MASK);
35 type &= SOCK_TYPE_MASK;
36
37 if (flags & ~(O_CLOEXEC | O_NONBLOCK))
38 return __hurd_fail (EINVAL);
39
40 /* Find the socket server for DOMAIN. */
41 server = _hurd_socket_server (domain, 0);
42 if (server == MACH_PORT_NULL)
43 return -1;
44
45 err = __socket_create (server, type, protocol, &sock);
46 if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED
47 || err == MIG_BAD_ID || err == EOPNOTSUPP)
48 {
49 /* On the first use of the socket server during the operation,
50 allow for the old server port dying. */
51 server = _hurd_socket_server (domain, 1);
52 if (server == MACH_PORT_NULL)
53 return -1;
54 err = __socket_create (server, type, protocol, &sock);
55 }
56
57 /* These errors all mean that the server node doesn't support the
58 socket.defs protocol, which we'll take to mean that the protocol
59 isn't supported. */
60 if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED
61 || err == MIG_BAD_ID || err == EOPNOTSUPP)
62 err = EAFNOSUPPORT;
63
64 if (! err)
65 {
66 if (flags & O_NONBLOCK)
67 err = __io_set_some_openmodes (sock, O_NONBLOCK);
68 /* TODO: do we need special ERR massaging after the previous call? */
69 }
70
71 if (err)
72 return __hurd_fail (err);
73
74 return _hurd_intern_fd (sock, O_IGNORE_CTTY | flags, 1);
75}
76
77libc_hidden_def (__socket)
78weak_alias (__socket, socket)
79

source code of glibc/sysdeps/mach/hurd/socket.c