sysdeps/mach/hurd/shutdown.c

   1 /* Copyright (C) 1992, 1994 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 Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 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 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <ansidecl.h>
  20 #include <errno.h>
  21 #include <sys/socket.h>
  22 #include <hurd.h>
  23 #include <hurd/socket.h>
  24 #include <hurd/fd.h>
  25
  26 /* Shut down all or part of the connection open on socket FD.
  27    HOW determines what to shut down:
  28      0 = No more receptions;
  29      1 = No more transmissions;
  30      2 = No more receptions or transmissions.
  31    Returns 0 on success, -1 for errors.  */
  32 int
  33 DEFUN(shutdown, (fd, how),
  34       int fd AND int how)
  35 {
  36   error_t err = HURD_DPORT_USE (fd, __socket_shutdown (port, how));
  37   if (err)
  38     return __hurd_dfail (fd, err);
  39   return 0;
  40 }