| 1 | /* Fortified version of wcslcat. |
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| 2 | Copyright (C) 2023-2024 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <wchar.h> |
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| 20 | |
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| 21 | /* Check that the user-supplied size does not exceed the |
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| 22 | compiler-determined size, and then forward to wcslcat. */ |
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| 23 | size_t |
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| 24 | __wcslcat_chk (wchar_t *__restrict s1, const wchar_t *__restrict s2, |
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| 25 | size_t n, size_t s1len) |
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| 26 | { |
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| 27 | if (__glibc_unlikely (s1len < n)) |
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| 28 | __chk_fail (); |
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| 29 | |
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| 30 | return __wcslcat (s1, s2, n); |
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| 31 | } |
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| 32 | |
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