1 /* Copyright (C) 1995-2022 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 <sys/msg.h>
19 #include <errno.h>
20
21 /* Read a message from the queue associated with the message queue
22 descriptor MSQID. At most MSGSZ bytes of the message are placed
23 in the buffer specified by the MSGP parameter. The MSGTYP parameter
24 describes which message is returned in MSGFLG describes the behaviour
25 in buffer overflow or queue underflow. */
26
27 ssize_t
msgrcv(int msqid,void * msgp,size_t msgsz,long msgtyp,int msgflg)28 msgrcv (int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg)
29 {
30 __set_errno (ENOSYS);
31 return -1;
32 }
33
34 stub_warning (msgrcv)
35