1 | /* Copyright (C) 1992-2022 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 <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. */ |
29 | int |
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 | |
77 | libc_hidden_def (__socket) |
78 | weak_alias (__socket, socket) |
79 | |