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bfff8b1b | 1 | /* Copyright (C) 2004-2017 Free Software Foundation, Inc. |
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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 | |
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15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
b5cc329c | 17 | |
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18 | #include <stdlib.h> |
19 | ||
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20 | /* Return 1 if the whole area PTR .. PTR+SIZE is not writable. |
21 | Return -1 if it is writable. */ | |
22 | ||
b5cc329c | 23 | int |
1866ae94 | 24 | __readonly_area (const void *ptr, size_t size) |
b5cc329c | 25 | { |
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26 | /* We cannot determine in general whether memory is writable or not. |
27 | This must be handled in a system-dependent manner. to not | |
28 | unconditionally break code we need to return here a positive | |
29 | answer. This disables this security measure but that is the | |
30 | price people have to pay for using systems without a real | |
31 | implementation of this interface. */ | |
32 | return 1; | |
b5cc329c | 33 | } |