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      1 /*	$NetBSD: compat_select.c,v 1.2 2009/01/11 02:46:26 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 1.2 2009/01/11 02:46:26 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 }
    103