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 <errno.h>
19#include <sys/socket.h>
20#include <hurd.h>
21#include <hurd/socket.h>
22#include <hurd/fd.h>
23#include <sysdep-cancel.h>
24
25/* Send N bytes of BUF to socket FD. Returns the number sent or -1. */
26ssize_t
27__send (int fd, const void *buf, size_t n, int flags)
28{
29 error_t err;
30 size_t wrote;
31 int cancel_oldtype;
32
33 cancel_oldtype = LIBC_CANCEL_ASYNC();
34 err = HURD_DPORT_USE_CANCEL (fd, __socket_send (port, MACH_PORT_NULL,
35 flags, buf, n,
36 NULL, MACH_MSG_TYPE_COPY_SEND, 0,
37 NULL, 0, &wrote));
38 LIBC_CANCEL_RESET (cancel_oldtype);
39
40 if (err == MIG_BAD_ID || err == EOPNOTSUPP)
41 /* The file did not grok the socket protocol. */
42 err = ENOTSOCK;
43
44 return err ? __hurd_sockfail (fd, flags, err) : wrote;
45}
46libc_hidden_def (__send)
47weak_alias (__send, send)
48

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