lib/libc/compat/sys/compat_select.c

   1 /*      $NetBSD: compat_select.c,v 1.1.2.3 2008/11/09 20:00:20 christos Exp $   */
   2
   3 /*-
   4  * Copyright (c) 2008 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #if defined(LIBC_SCCS) && !defined(lint)
  34 __RCSID("$NetBSD: compat_select.c,v 1.1.2.3 2008/11/09 20:00:20 christos Exp $");
  35 #endif /* LIBC_SCCS and not lint */
  36
  37 #define __LIBC12_SOURCE__
  38
  39 #include "namespace.h"
  40 #include <sys/types.h>
  41 #include <sys/time.h>
  42 #include <compat/sys/time.h>
  43 #include <sys/select.h>
  44 #include <compat/sys/select.h>
  45 #include <sys/poll.h>
  46 #include <compat/sys/poll.h>
  47
  48 __warn_references(pollts,
  49     "warning: reference to compatibility pollts(); include <poll.h> to generate correct reference")
  50 __warn_references(select,
  51     "warning: reference to compatibility select(); include <sys/select.h> to generate correct reference")
  52 __warn_references(pselect,
  53     "warning: reference to compatibility pselect(); include <sys/select.h> to generate correct reference")
  54
  55 #ifdef __weak_alias
  56 __weak_alias(select, _select)
  57 __weak_alias(_sys_select, _select)
  58 __weak_alias(pselect, _pselect)
  59 __weak_alias(_sys_pselect, _pselect)
  60 __weak_alias(pollts, _pollts)
  61 __weak_alias(_sys_pollts, _pollts)
  62 #endif
  63 int
  64 pollts(struct pollfd * __restrict fds, nfds_t nfds,
  65     const struct timespec50 * __restrict tim50,
  66     const sigset_t * __restrict sigmask)
  67 {
  68         struct timespec tim, *timp;
  69
  70         if (tim50)
  71                 timespec50_to_timespec(tim50, timp = &tim);
  72         else
  73                 timp = NULL;
  74         return __pollts50(fds, nfds, timp, sigmask);
  75 }
  76
  77 int
  78 select(int nfds, fd_set * __restrict readfds, fd_set * __restrict writefds,
  79     fd_set * __restrict exceptfds, struct timeval50 * __restrict tim50)
  80 {
  81         struct timeval tim, *timp;
  82
  83         if (tim50)
  84                 timeval50_to_timeval(tim50, timp = &tim);
  85         else
  86                 timp = NULL;
  87         return __select50(nfds, readfds, writefds, exceptfds, timp);
  88 }
  89
  90 int
  91 pselect(int nfds, fd_set * __restrict readfds, fd_set * __restrict writefds,
  92     fd_set * __restrict exceptfds, const struct timespec50 *__restrict tim50,
  93     const sigset_t * __restrict sigmask)
  94 {
  95         struct timespec tim, *timp;
  96
  97         if (tim50)
  98                 timespec50_to_timespec(tim50, timp = &tim);
  99         else
 100                 timp = NULL;
 101         return __pselect50(nfds, readfds, writefds, exceptfds, timp, sigmask);
 102 }