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dff8da6b | 1 | /* Copyright (C) 2011-2024 Free Software Foundation, Inc. |
a0f33f99 UD |
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 | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
a0f33f99 | 17 | |
811c635d | 18 | #include <stdio.h> |
a0f33f99 UD |
19 | #include <sys/select.h> |
20 | ||
21 | ||
ceb9e56b PP |
22 | long int |
23 | __fdelt_chk (long int d) | |
a0f33f99 | 24 | { |
ceb9e56b | 25 | if (d < 0 || d >= FD_SETSIZE) |
811c635d | 26 | __fortify_fail ("bit out of range 0 - FD_SETSIZE on fd_set"); |
a0f33f99 UD |
27 | |
28 | return d / __NFDBITS; | |
29 | } | |
30 | strong_alias (__fdelt_chk, __fdelt_warn) | |
d9a99272 | 31 | libc_hidden_def (__fdelt_chk) |