260 lines
6.5 KiB
C
260 lines
6.5 KiB
C
/*
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* Copyright (C) 2015-2017 Dimitris Papastamos <sin@2f30.org>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _FORTIFY_WCHAR_H
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#define _FORTIFY_WCHAR_H
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#ifndef __cplusplus
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__extension__
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#endif
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#include_next <limits.h>
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#ifndef __cplusplus
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__extension__
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#endif
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#include_next <stdlib.h>
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#ifndef __cplusplus
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__extension__
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#endif
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#include_next <string.h>
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#ifndef __cplusplus
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__extension__
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#endif
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#include_next <wchar.h>
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#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
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#include "fortify-headers.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#undef fgetws
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#undef mbsrtowcs
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#undef mbstowcs
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#undef wcrtomb
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#undef wcscat
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#undef wcscpy
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#undef wcsncat
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#undef wcsncpy
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#undef wcsrtombs
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#undef wcstombs
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#undef wctomb
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#undef wmemcpy
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#undef wmemmove
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#undef wmemset
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_FORTIFY_FN(fgetws) wchar_t *fgetws(wchar_t *__s, int __n, FILE *__f)
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{
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size_t __b = __builtin_object_size(__s, 0);
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if ((size_t)__n > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_fgetws(__s, __n, __f);
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}
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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
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|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#undef mbsnrtowcs
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_FORTIFY_FN(mbsnrtowcs) size_t mbsnrtowcs(wchar_t *__d, const char **__s, size_t __n,
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size_t __wn, mbstate_t *__st)
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{
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size_t __b = __builtin_object_size(__d, 0);
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size_t __r;
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if (__wn > __n / sizeof(wchar_t)) {
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__b /= sizeof(wchar_t);
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__r = __orig_mbsnrtowcs(__d, __s, __n, __wn > __b ? __b : __wn, __st);
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if (__b < __wn && __d && *__s && __r != (size_t)-1)
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__builtin_trap();
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} else {
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__r = __orig_mbsnrtowcs(__d, __s, __n > __b ? __b : __n, __wn, __st);
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if (__b < __n && __d && *__s && __r != (size_t)-1)
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__builtin_trap();
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}
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return __r;
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}
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#endif
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_FORTIFY_FN(mbsrtowcs) size_t mbsrtowcs(wchar_t *__d, const char **__s, size_t __wn,
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mbstate_t *__st)
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{
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size_t __b = __builtin_object_size(__d, 0);
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size_t __r;
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__b /= sizeof(wchar_t);
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__r = __orig_mbsrtowcs(__d, __s, __wn > __b ? __b : __wn, __st);
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if (__b < __wn && __d && *__s && __r != (size_t)-1)
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__builtin_trap();
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return __r;
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}
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_FORTIFY_FN(mbstowcs) size_t mbstowcs(wchar_t *__ws, const char *__s, size_t __wn)
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{
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size_t __b = __builtin_object_size(__ws, 0);
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if (__ws && __wn > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_mbstowcs(__ws, __s, __wn);
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}
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_FORTIFY_FN(wcrtomb) size_t wcrtomb(char *__s, wchar_t __w, mbstate_t *__st)
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{
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char __buf[MB_LEN_MAX];
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size_t __b = __builtin_object_size(__s, 0);
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size_t __r;
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if (__s) {
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__r = __orig_wcrtomb(__buf, __w, __st);
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if (__r == (size_t)-1)
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return __r;
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if (__r > __b)
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__builtin_trap();
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memcpy(__s, __buf, __r);
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return __r;
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}
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return __orig_wcrtomb(__s, __w, __st);
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}
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_FORTIFY_FN(wcscat) wchar_t *wcscat(wchar_t *__d, const wchar_t *__s)
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{
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size_t __b = __builtin_object_size(__d, 0);
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if (wcslen(__s) + wcslen(__d) + 1 > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_wcscat(__d, __s);
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}
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_FORTIFY_FN(wcscpy) wchar_t *wcscpy(wchar_t *__d, const wchar_t *__s)
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{
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size_t __b = __builtin_object_size(__d, 0);
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if (wcslen(__s) + 1 > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_wcscpy(__d, __s);
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}
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_FORTIFY_FN(wcsncat) wchar_t *wcsncat(wchar_t *__d, const wchar_t *__s, size_t __n)
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{
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size_t __b = __builtin_object_size(__d, 0);
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size_t __sl, __dl;
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if (__n > __b / sizeof(wchar_t)) {
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__sl = wcslen(__s);
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__dl = wcslen(__d);
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if (__sl > __n)
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__sl = __n;
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if (__sl + __dl + 1 > __b / sizeof(wchar_t))
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__builtin_trap();
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}
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return __orig_wcsncat(__d, __s, __n);
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}
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_FORTIFY_FN(wcsncpy) wchar_t *wcsncpy(wchar_t *__d, const wchar_t *__s, size_t __n)
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{
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size_t __b = __builtin_object_size(__d, 0);
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if (__n > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_wcsncpy(__d, __s, __n);
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}
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#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
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|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#undef wcsnrtombs
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_FORTIFY_FN(wcsnrtombs) size_t wcsnrtombs(char *__d, const wchar_t **__s, size_t __wn,
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size_t __n, mbstate_t *__st)
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{
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size_t __b = __builtin_object_size(__d, 0);
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size_t __r;
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if (__wn > __n / sizeof(wchar_t)) {
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__b /= sizeof(wchar_t);
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__r = __orig_wcsnrtombs(__d, __s, __wn > __b ? __b : __wn, __n, __st);
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if (__b < __wn && __d && *__s && __r != (size_t)-1)
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__builtin_trap();
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} else {
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__r = __orig_wcsnrtombs(__d, __s, __wn, __n > __b ? __b : __n, __st);
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if (__b < __n && __d && *__s && __r != (size_t)-1)
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__builtin_trap();
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}
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return __r;
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}
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#endif
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_FORTIFY_FN(wcsrtombs) size_t wcsrtombs(char *__d, const wchar_t **__s, size_t __n,
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mbstate_t *__st)
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{
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size_t __b = __builtin_object_size(__d, 0);
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size_t __r;
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__r = __orig_wcsrtombs(__d, __s, __n > __b ? __b : __n, __st);
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if (__b < __n && __d && *__s && __r != (size_t)-1)
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__builtin_trap();
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return __r;
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}
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_FORTIFY_FN(wcstombs) size_t wcstombs(char *__s, const wchar_t *__ws, size_t __n)
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{
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size_t __b = __builtin_object_size(__s, 0);
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if (__s && __n > __b)
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__builtin_trap();
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return __orig_wcstombs(__s, __ws, __n);
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}
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_FORTIFY_FN(wctomb) int wctomb(char *__s, wchar_t __w)
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{
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size_t __b = __builtin_object_size(__s, 0);
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if (__s && MB_CUR_MAX > __b)
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__builtin_trap();
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return __orig_wctomb(__s, __w);
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}
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_FORTIFY_FN(wmemcpy) wchar_t *wmemcpy(wchar_t *__d, const wchar_t *__s, size_t __n)
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{
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size_t __b = __builtin_object_size(__d, 0);
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if (__n > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_wmemcpy(__d, __s, __n);
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}
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_FORTIFY_FN(wmemmove) wchar_t *wmemmove(wchar_t *__d, const wchar_t *__s, size_t __n)
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{
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size_t __b = __builtin_object_size(__d, 0);
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if (__n > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_wmemmove(__d, __s, __n);
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}
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_FORTIFY_FN(wmemset) wchar_t *wmemset(wchar_t *__s, wchar_t __c, size_t __n)
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{
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size_t __b = __builtin_object_size(__s, 0);
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if (__n > __b / sizeof(wchar_t))
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__builtin_trap();
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return __orig_wmemset(__s, __c, __n);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif
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