1 /* Copyright (C) 2011-2022 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 <stdio.h>
19 #include <sys/select.h>
20
21
22 long int
__fdelt_chk(long int d)23 __fdelt_chk (long int d)
24 {
25 if (d < 0 || d >= FD_SETSIZE)
26 __fortify_fail ("bit out of range 0 - FD_SETSIZE on fd_set");
27
28 return d / __NFDBITS;
29 }
30 strong_alias (__fdelt_chk, __fdelt_warn)
31