1 /* Copyright (C) 1991-2022 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 <sys/time.h>
19 #include <sys/types.h>
20 #include <errno.h>
21
22 /* Check the first NFDS descriptors each in READFDS (if not NULL) for read
23 readiness, in WRITEFDS (if not NULL) for write readiness, and in EXCEPTFDS
24 (if not NULL) for exceptional conditions. If TIMEOUT is not NULL, time out
25 after waiting the interval specified therein. Returns the number of ready
26 descriptors, or -1 for errors. */
27 int
__select(int nfds,fd_set * readfds,fd_set * writefds,fd_set * exceptfds,struct timeval * timeout)28 __select (int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
29 struct timeval *timeout)
30 {
31 __set_errno (ENOSYS);
32 return -1;
33 }
34 libc_hidden_def (__select)
35 stub_warning (select)
36
37 weak_alias (__select, select)
38