1  /* Copyright (C) 2008-2023 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 <errno.h>
      19  #include <sys/socket.h>
      20  
      21  /* Await a connection on socket FD.
      22     When a connection arrives, open a new socket to communicate with it,
      23     set *ADDR (which is *ADDR_LEN bytes long) to the address of the connecting
      24     peer and *ADDR_LEN to the address's actual length, and return the
      25     new socket's descriptor, or -1 for errors.  The operation can be influenced
      26     by the FLAGS parameter.  */
      27  int
      28  __libc_accept4 (int fd, __SOCKADDR_ARG addr, socklen_t *addr_len, int flags)
      29  {
      30    __set_errno (ENOSYS);
      31    return -1;
      32  }
      33  weak_alias (__libc_accept4, accept4)
      34  
      35  
      36  stub_warning (accept4)