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 |
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 | |