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6d7e8eda | 1 | /* Copyright (C) 1994-2023 Free Software Foundation, Inc. |
478b92f0 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
478b92f0 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
28f540f4 | 8 | |
478b92f0 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
28f540f4 | 17 | |
28f540f4 RM |
18 | #include <errno.h> |
19 | #include <sys/socket.h> | |
0fd43249 | 20 | #include <sys/un.h> |
28f540f4 | 21 | #include <hurd.h> |
28f540f4 | 22 | #include <hurd/fd.h> |
ad738d03 | 23 | #include <hurd/ifsock.h> |
0fd43249 | 24 | #include <hurd/socket.h> |
0c468914 | 25 | #include <sysdep-cancel.h> |
a5eb23de | 26 | #include "hurd/hurdsocket.h" |
28f540f4 RM |
27 | |
28 | /* Send N bytes of BUF on socket FD to peer at address ADDR (which is | |
29 | ADDR_LEN bytes long). Returns the number sent, or -1 for errors. */ | |
c2063191 | 30 | ssize_t |
b2bffca2 UD |
31 | __sendto (int fd, |
32 | const void *buf, | |
33 | size_t n, | |
34 | int flags, | |
35 | const struct sockaddr_un *addr, | |
36 | socklen_t addr_len) | |
28f540f4 | 37 | { |
ac4ea442 | 38 | addr_port_t aport = MACH_PORT_NULL; |
28f540f4 | 39 | error_t err; |
063f7462 | 40 | vm_size_t wrote; |
be7e3b7e | 41 | |
ac4ea442 PT |
42 | /* Get an address port for the desired destination address. */ |
43 | error_t create_address_port (io_t port, | |
44 | const struct sockaddr_un *addr, | |
45 | socklen_t addr_len, | |
46 | addr_port_t *aport) | |
ad738d03 | 47 | { |
ac4ea442 PT |
48 | error_t err_port; |
49 | ||
50 | if (addr->sun_family == AF_LOCAL) | |
51 | { | |
a5eb23de | 52 | char *name = _hurd_sun_path_dupa (addr, addr_len); |
ac4ea442 PT |
53 | /* For the local domain, we must look up the name as a file and talk |
54 | to it with the ifsock protocol. */ | |
a5eb23de | 55 | file_t file = __file_name_lookup (name, 0, 0); |
ac4ea442 PT |
56 | if (file == MACH_PORT_NULL) |
57 | return errno; | |
58 | err_port = __ifsock_getsockaddr (file, aport); | |
59 | __mach_port_deallocate (__mach_task_self (), file); | |
60 | if (err_port == MIG_BAD_ID || err_port == EOPNOTSUPP) | |
61 | /* The file did not grok the ifsock protocol. */ | |
62 | err_port = ENOTSOCK; | |
63 | } | |
64 | else | |
65 | { | |
66 | err_port = __socket_create_address (port, | |
67 | addr->sun_family, | |
68 | (char *) addr, | |
69 | addr_len, | |
70 | aport); | |
71 | } | |
72 | ||
73 | return err_port; | |
ad738d03 | 74 | } |
28f540f4 | 75 | |
67a78072 | 76 | err = HURD_DPORT_USE_CANCEL (fd, |
28f540f4 | 77 | ({ |
ac4ea442 PT |
78 | if (addr != NULL) |
79 | err = create_address_port (port, addr, addr_len, | |
80 | &aport); | |
81 | else | |
82 | err = 0; | |
28f540f4 RM |
83 | if (! err) |
84 | { | |
85 | /* Send the data. */ | |
0c468914 | 86 | int cancel_oldtype = LIBC_CANCEL_ASYNC(); |
28f540f4 RM |
87 | err = __socket_send (port, aport, |
88 | flags, buf, n, | |
89 | NULL, | |
90 | MACH_MSG_TYPE_COPY_SEND, 0, | |
91 | NULL, 0, &wrote); | |
0c468914 | 92 | LIBC_CANCEL_RESET (cancel_oldtype); |
28f540f4 RM |
93 | } |
94 | err; | |
95 | })); | |
96 | ||
ac4ea442 PT |
97 | if (aport != MACH_PORT_NULL) |
98 | __mach_port_deallocate (__mach_task_self (), aport); | |
99 | ||
0a583b54 | 100 | return err ? __hurd_sockfail (fd, flags, err) : wrote; |
28f540f4 | 101 | } |
b2bffca2 UD |
102 | |
103 | weak_alias (__sendto, sendto) |