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 <hurd.h> |
20 | #include <hurd/fd.h> |
21 | #include <sys/socket.h> |
22 | #include <hurd/socket.h> |
23 | #include <sys/un.h> |
24 | #include <hurd/ifsock.h> |
25 | #include <sysdep-cancel.h> |
26 | #include "hurd/hurdsocket.h" |
27 | |
28 | /* Open a connection on socket FD to peer at ADDR (which LEN bytes long). |
29 | For connectionless socket types, just set the default address to send to |
30 | and the only address from which to accept transmissions. |
31 | Return 0 on success, -1 for errors. */ |
32 | int |
33 | __connect (int fd, __CONST_SOCKADDR_ARG addrarg, socklen_t len) |
34 | { |
35 | error_t err; |
36 | addr_port_t aport; |
37 | const struct sockaddr_un *addr = addrarg.__sockaddr_un__; |
38 | int cancel_oldtype; |
39 | |
40 | if (addr->sun_family == AF_LOCAL) |
41 | { |
42 | char *name = _hurd_sun_path_dupa (addr, len); |
43 | /* For the local domain, we must look up the name as a file and talk |
44 | to it with the ifsock protocol. */ |
45 | file_t file; |
46 | cancel_oldtype = LIBC_CANCEL_ASYNC(); |
47 | file = __file_name_lookup (name, 0, 0); |
48 | LIBC_CANCEL_RESET (cancel_oldtype); |
49 | if (file == MACH_PORT_NULL) |
50 | return -1; |
51 | err = __ifsock_getsockaddr (file, &aport); |
52 | __mach_port_deallocate (__mach_task_self (), file); |
53 | if (err == MIG_BAD_ID || err == EOPNOTSUPP) |
54 | /* The file did not grok the ifsock protocol. */ |
55 | err = ENOTSOCK; |
56 | if (err) |
57 | return __hurd_fail (err); |
58 | } |
59 | else |
60 | err = EIEIO; |
61 | |
62 | err = HURD_DPORT_USE_CANCEL (fd, |
63 | ({ |
64 | if (err) |
65 | err = __socket_create_address (port, |
66 | addr->sun_family, |
67 | (char *) addr, len, |
68 | &aport); |
69 | if (! err) |
70 | { |
71 | cancel_oldtype = LIBC_CANCEL_ASYNC(); |
72 | err = __socket_connect (port, aport); |
73 | LIBC_CANCEL_RESET (cancel_oldtype); |
74 | __mach_port_deallocate (__mach_task_self (), |
75 | aport); |
76 | } |
77 | err; |
78 | })); |
79 | |
80 | return err ? __hurd_dfail (fd, err) : 0; |
81 | } |
82 | |
83 | libc_hidden_def (__connect) |
84 | weak_alias (__connect, connect) |
85 | |