sysdeps/stub/select.c

   1 /* Copyright (C) 1991, 1995 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 <sys/time.h>
  21 #include <sys/types.h>
  22 #include <errno.h>
  23
  24 /* Check the first NFDS descriptors each in READFDS (if not NULL) for read
  25    readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS
  26    (if not NULL) for exceptional conditions.  If TIMEOUT is not NULL, time out
  27    after waiting the interval specified therein.  Returns the number of ready
  28    descriptors, or -1 for errors.  */
  29 int
  30 DEFUN(__select, (nfds, readfds, writefds, exceptfds, timeout),
  31       int nfds AND fd_set *readfds AND fd_set *writefds AND
  32       fd_set *exceptfds AND struct timeval *timeout)
  33 {
  34   errno = ENOSYS;
  35   return -1;
  36 }
  37 stub_warning (select)
  38
  39 weak_alias (__select, select)