1  /* Copyright (C) 1995-2023 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
      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)