1 /* Copyright (C) 1994-2022 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <sys/socket.h>
22 #include <hurd/socket.h>
24 #include <sysdep-cancel.h>
26 /* Read N bytes into BUF from socket FD.
27 Returns the number read or -1 for errors. */
30 __recv (int fd
, void *buf
, size_t n
, int flags
)
35 mach_msg_type_number_t nread
= n
;
37 mach_msg_type_number_t nports
= 0;
39 mach_msg_type_number_t clen
= 0;
42 cancel_oldtype
= LIBC_CANCEL_ASYNC();
43 err
= HURD_DPORT_USE_CANCEL (fd
, __socket_recv (port
, &addrport
,
49 LIBC_CANCEL_RESET (cancel_oldtype
);
51 if (err
== MIG_BAD_ID
|| err
== EOPNOTSUPP
)
52 /* The file did not grok the socket protocol. */
55 return __hurd_sockfail (fd
, flags
, err
);
57 __mach_port_deallocate (__mach_task_self (), addrport
);
58 __vm_deallocate (__mach_task_self (), (vm_address_t
) cdata
, clen
);
62 memcpy (buf
, bufp
, nread
);
63 __vm_deallocate (__mach_task_self (), (vm_address_t
) bufp
, nread
);
68 libc_hidden_def (__recv
)
69 weak_alias (__recv
, recv
)