443 lines
14 KiB
C
443 lines
14 KiB
C
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/* Checking macros for wchar functions.
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Copyright (C) 2005-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _WCHAR_H
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# error "Never include <bits/wchar2.h> directly; use <wchar.h> instead."
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#endif
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extern wchar_t *__REDIRECT_NTH (__wmemcpy_alias,
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(wchar_t *__restrict __s1,
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const wchar_t *__restrict __s2, size_t __n),
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wmemcpy);
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extern wchar_t *__REDIRECT_NTH (__wmemcpy_chk_warn,
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(wchar_t *__restrict __s1,
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const wchar_t *__restrict __s2, size_t __n,
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size_t __ns1), __wmemcpy_chk)
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__warnattr ("wmemcpy called with length bigger than size of destination "
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"buffer");
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__fortify_function wchar_t *
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__NTH (wmemcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2,
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size_t __n))
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{
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return __glibc_fortify_n (wmemcpy, __n, sizeof (wchar_t),
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__glibc_objsize0 (__s1),
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__s1, __s2, __n);
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}
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extern wchar_t *__REDIRECT_NTH (__wmemmove_alias, (wchar_t *__s1,
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const wchar_t *__s2,
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size_t __n), wmemmove);
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extern wchar_t *__REDIRECT_NTH (__wmemmove_chk_warn,
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(wchar_t *__s1, const wchar_t *__s2,
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size_t __n, size_t __ns1), __wmemmove_chk)
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__warnattr ("wmemmove called with length bigger than size of destination "
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"buffer");
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__fortify_function wchar_t *
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__NTH (wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n))
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{
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return __glibc_fortify_n (wmemmove, __n, sizeof (wchar_t),
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__glibc_objsize0 (__s1),
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__s1, __s2, __n);
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}
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#ifdef __USE_GNU
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extern wchar_t *__REDIRECT_NTH (__wmempcpy_alias,
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(wchar_t *__restrict __s1,
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const wchar_t *__restrict __s2,
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size_t __n), wmempcpy);
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extern wchar_t *__REDIRECT_NTH (__wmempcpy_chk_warn,
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(wchar_t *__restrict __s1,
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const wchar_t *__restrict __s2, size_t __n,
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size_t __ns1), __wmempcpy_chk)
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__warnattr ("wmempcpy called with length bigger than size of destination "
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"buffer");
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__fortify_function wchar_t *
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__NTH (wmempcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2,
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size_t __n))
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{
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return __glibc_fortify_n (wmempcpy, __n, sizeof (wchar_t),
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__glibc_objsize0 (__s1),
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__s1, __s2, __n);
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}
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#endif
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extern wchar_t *__REDIRECT_NTH (__wmemset_alias, (wchar_t *__s, wchar_t __c,
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size_t __n), wmemset);
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extern wchar_t *__REDIRECT_NTH (__wmemset_chk_warn,
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(wchar_t *__s, wchar_t __c, size_t __n,
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size_t __ns), __wmemset_chk)
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__warnattr ("wmemset called with length bigger than size of destination "
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"buffer");
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__fortify_function wchar_t *
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__NTH (wmemset (wchar_t *__s, wchar_t __c, size_t __n))
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{
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return __glibc_fortify_n (wmemset, __n, sizeof (wchar_t),
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__glibc_objsize0 (__s),
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__s, __c, __n);
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}
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extern wchar_t *__REDIRECT_NTH (__wcscpy_alias,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src), wcscpy);
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__fortify_function wchar_t *
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__NTH (wcscpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src))
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{
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size_t sz = __glibc_objsize (__dest);
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if (sz != (size_t) -1)
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return __wcscpy_chk (__dest, __src, sz / sizeof (wchar_t));
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return __wcscpy_alias (__dest, __src);
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}
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extern wchar_t *__REDIRECT_NTH (__wcpcpy_alias,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src), wcpcpy);
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__fortify_function wchar_t *
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__NTH (wcpcpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src))
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{
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size_t sz = __glibc_objsize (__dest);
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if (sz != (size_t) -1)
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return __wcpcpy_chk (__dest, __src, sz / sizeof (wchar_t));
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return __wcpcpy_alias (__dest, __src);
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}
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extern wchar_t *__REDIRECT_NTH (__wcsncpy_alias,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src,
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size_t __n), wcsncpy);
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extern wchar_t *__REDIRECT_NTH (__wcsncpy_chk_warn,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src,
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size_t __n, size_t __destlen), __wcsncpy_chk)
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__warnattr ("wcsncpy called with length bigger than size of destination "
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"buffer");
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__fortify_function wchar_t *
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__NTH (wcsncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src,
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size_t __n))
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{
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return __glibc_fortify_n (wcsncpy, __n, sizeof (wchar_t),
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__glibc_objsize (__dest),
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__dest, __src, __n);
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}
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extern wchar_t *__REDIRECT_NTH (__wcpncpy_alias,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src,
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size_t __n), wcpncpy);
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extern wchar_t *__REDIRECT_NTH (__wcpncpy_chk_warn,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src,
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size_t __n, size_t __destlen), __wcpncpy_chk)
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__warnattr ("wcpncpy called with length bigger than size of destination "
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"buffer");
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__fortify_function wchar_t *
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__NTH (wcpncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src,
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size_t __n))
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{
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return __glibc_fortify_n (wcpncpy, __n, sizeof (wchar_t),
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__glibc_objsize (__dest),
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__dest, __src, __n);
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}
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extern wchar_t *__REDIRECT_NTH (__wcscat_alias,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src), wcscat);
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__fortify_function wchar_t *
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__NTH (wcscat (wchar_t *__restrict __dest, const wchar_t *__restrict __src))
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{
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size_t sz = __glibc_objsize (__dest);
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if (sz != (size_t) -1)
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return __wcscat_chk (__dest, __src, sz / sizeof (wchar_t));
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return __wcscat_alias (__dest, __src);
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}
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extern wchar_t *__REDIRECT_NTH (__wcsncat_alias,
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(wchar_t *__restrict __dest,
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const wchar_t *__restrict __src,
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size_t __n), wcsncat);
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__fortify_function wchar_t *
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__NTH (wcsncat (wchar_t *__restrict __dest, const wchar_t *__restrict __src,
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size_t __n))
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{
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size_t sz = __glibc_objsize (__dest);
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if (sz != (size_t) -1)
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return __wcsncat_chk (__dest, __src, __n, sz / sizeof (wchar_t));
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return __wcsncat_alias (__dest, __src, __n);
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}
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extern int __REDIRECT_NTH_LDBL (__swprintf_alias,
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(wchar_t *__restrict __s, size_t __n,
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const wchar_t *__restrict __fmt, ...),
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swprintf);
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#ifdef __va_arg_pack
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__fortify_function int
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__NTH (swprintf (wchar_t *__restrict __s, size_t __n,
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const wchar_t *__restrict __fmt, ...))
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{
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size_t sz = __glibc_objsize (__s);
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if (sz != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
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return __swprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
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sz / sizeof (wchar_t), __fmt, __va_arg_pack ());
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return __swprintf_alias (__s, __n, __fmt, __va_arg_pack ());
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}
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#elif !defined __cplusplus
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/* XXX We might want to have support in gcc for swprintf. */
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# define swprintf(s, n, ...) \
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(__glibc_objsize (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \
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? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, \
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__glibc_objsize (s) / sizeof (wchar_t), __VA_ARGS__) \
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: swprintf (s, n, __VA_ARGS__))
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#endif
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extern int __REDIRECT_NTH_LDBL (__vswprintf_alias,
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(wchar_t *__restrict __s, size_t __n,
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const wchar_t *__restrict __fmt,
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__gnuc_va_list __ap), vswprintf);
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__fortify_function int
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__NTH (vswprintf (wchar_t *__restrict __s, size_t __n,
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const wchar_t *__restrict __fmt, __gnuc_va_list __ap))
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{
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size_t sz = __glibc_objsize (__s);
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if (sz != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
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return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
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sz / sizeof (wchar_t), __fmt, __ap);
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return __vswprintf_alias (__s, __n, __fmt, __ap);
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}
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#if __USE_FORTIFY_LEVEL > 1
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# ifdef __va_arg_pack
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__fortify_function int
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wprintf (const wchar_t *__restrict __fmt, ...)
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{
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return __wprintf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ());
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}
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__fortify_function int
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fwprintf (__FILE *__restrict __stream, const wchar_t *__restrict __fmt, ...)
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{
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return __fwprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt,
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__va_arg_pack ());
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}
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# elif !defined __cplusplus
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# define wprintf(...) \
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__wprintf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
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# define fwprintf(stream, ...) \
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__fwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
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# endif
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__fortify_function int
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vwprintf (const wchar_t *__restrict __fmt, __gnuc_va_list __ap)
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{
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return __vwprintf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __ap);
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}
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__fortify_function int
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vfwprintf (__FILE *__restrict __stream,
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const wchar_t *__restrict __fmt, __gnuc_va_list __ap)
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{
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return __vfwprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt, __ap);
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}
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#endif
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extern wchar_t *__REDIRECT (__fgetws_alias,
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(wchar_t *__restrict __s, int __n,
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__FILE *__restrict __stream), fgetws) __wur;
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extern wchar_t *__REDIRECT (__fgetws_chk_warn,
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(wchar_t *__restrict __s, size_t __size, int __n,
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__FILE *__restrict __stream), __fgetws_chk)
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__wur __warnattr ("fgetws called with bigger size than length "
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"of destination buffer");
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__fortify_function __wur wchar_t *
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fgetws (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream)
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{
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size_t sz = __glibc_objsize (__s);
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if (__glibc_safe_or_unknown_len (__n, sizeof (wchar_t), sz))
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return __fgetws_alias (__s, __n, __stream);
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if (__glibc_unsafe_len (__n, sizeof (wchar_t), sz))
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return __fgetws_chk_warn (__s, sz / sizeof (wchar_t), __n, __stream);
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return __fgetws_chk (__s, sz / sizeof (wchar_t), __n, __stream);
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}
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#ifdef __USE_GNU
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extern wchar_t *__REDIRECT (__fgetws_unlocked_alias,
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(wchar_t *__restrict __s, int __n,
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__FILE *__restrict __stream), fgetws_unlocked)
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__wur;
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extern wchar_t *__REDIRECT (__fgetws_unlocked_chk_warn,
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(wchar_t *__restrict __s, size_t __size, int __n,
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__FILE *__restrict __stream),
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__fgetws_unlocked_chk)
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__wur __warnattr ("fgetws_unlocked called with bigger size than length "
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"of destination buffer");
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__fortify_function __wur wchar_t *
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fgetws_unlocked (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream)
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{
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size_t sz = __glibc_objsize (__s);
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if (__glibc_safe_or_unknown_len (__n, sizeof (wchar_t), sz))
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return __fgetws_unlocked_alias (__s, __n, __stream);
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if (__glibc_unsafe_len (__n, sizeof (wchar_t), sz))
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return __fgetws_unlocked_chk_warn (__s, sz / sizeof (wchar_t), __n,
|
||
|
|
__stream);
|
||
|
|
return __fgetws_unlocked_chk (__s, sz / sizeof (wchar_t), __n, __stream);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
extern size_t __REDIRECT_NTH (__wcrtomb_alias,
|
||
|
|
(char *__restrict __s, wchar_t __wchar,
|
||
|
|
mbstate_t *__restrict __ps), wcrtomb) __wur;
|
||
|
|
|
||
|
|
__fortify_function __wur size_t
|
||
|
|
__NTH (wcrtomb (char *__restrict __s, wchar_t __wchar,
|
||
|
|
mbstate_t *__restrict __ps))
|
||
|
|
{
|
||
|
|
/* We would have to include <limits.h> to get a definition of MB_LEN_MAX.
|
||
|
|
But this would only disturb the namespace. So we define our own
|
||
|
|
version here. */
|
||
|
|
#define __WCHAR_MB_LEN_MAX 16
|
||
|
|
#if defined MB_LEN_MAX && MB_LEN_MAX != __WCHAR_MB_LEN_MAX
|
||
|
|
# error "Assumed value of MB_LEN_MAX wrong"
|
||
|
|
#endif
|
||
|
|
if (__glibc_objsize (__s) != (size_t) -1
|
||
|
|
&& __WCHAR_MB_LEN_MAX > __glibc_objsize (__s))
|
||
|
|
return __wcrtomb_chk (__s, __wchar, __ps, __glibc_objsize (__s));
|
||
|
|
return __wcrtomb_alias (__s, __wchar, __ps);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
extern size_t __REDIRECT_NTH (__mbsrtowcs_alias,
|
||
|
|
(wchar_t *__restrict __dst,
|
||
|
|
const char **__restrict __src,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps),
|
||
|
|
mbsrtowcs);
|
||
|
|
extern size_t __REDIRECT_NTH (__mbsrtowcs_chk_warn,
|
||
|
|
(wchar_t *__restrict __dst,
|
||
|
|
const char **__restrict __src,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps,
|
||
|
|
size_t __dstlen), __mbsrtowcs_chk)
|
||
|
|
__warnattr ("mbsrtowcs called with dst buffer smaller than len "
|
||
|
|
"* sizeof (wchar_t)");
|
||
|
|
|
||
|
|
__fortify_function size_t
|
||
|
|
__NTH (mbsrtowcs (wchar_t *__restrict __dst, const char **__restrict __src,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps))
|
||
|
|
{
|
||
|
|
return __glibc_fortify_n (mbsrtowcs, __len, sizeof (wchar_t),
|
||
|
|
__glibc_objsize (__dst),
|
||
|
|
__dst, __src, __len, __ps);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
extern size_t __REDIRECT_NTH (__wcsrtombs_alias,
|
||
|
|
(char *__restrict __dst,
|
||
|
|
const wchar_t **__restrict __src,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps),
|
||
|
|
wcsrtombs);
|
||
|
|
extern size_t __REDIRECT_NTH (__wcsrtombs_chk_warn,
|
||
|
|
(char *__restrict __dst,
|
||
|
|
const wchar_t **__restrict __src,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps,
|
||
|
|
size_t __dstlen), __wcsrtombs_chk)
|
||
|
|
__warnattr ("wcsrtombs called with dst buffer smaller than len");
|
||
|
|
|
||
|
|
__fortify_function size_t
|
||
|
|
__NTH (wcsrtombs (char *__restrict __dst, const wchar_t **__restrict __src,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps))
|
||
|
|
{
|
||
|
|
return __glibc_fortify (wcsrtombs, __len, sizeof (char),
|
||
|
|
__glibc_objsize (__dst),
|
||
|
|
__dst, __src, __len, __ps);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __USE_XOPEN2K8
|
||
|
|
extern size_t __REDIRECT_NTH (__mbsnrtowcs_alias,
|
||
|
|
(wchar_t *__restrict __dst,
|
||
|
|
const char **__restrict __src, size_t __nmc,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps),
|
||
|
|
mbsnrtowcs);
|
||
|
|
extern size_t __REDIRECT_NTH (__mbsnrtowcs_chk_warn,
|
||
|
|
(wchar_t *__restrict __dst,
|
||
|
|
const char **__restrict __src, size_t __nmc,
|
||
|
|
size_t __len, mbstate_t *__restrict __ps,
|
||
|
|
size_t __dstlen), __mbsnrtowcs_chk)
|
||
|
|
__warnattr ("mbsnrtowcs called with dst buffer smaller than len "
|
||
|
|
"* sizeof (wchar_t)");
|
||
|
|
|
||
|
|
__fortify_function size_t
|
||
|
|
__NTH (mbsnrtowcs (wchar_t *__restrict __dst, const char **__restrict __src,
|
||
|
|
size_t __nmc, size_t __len, mbstate_t *__restrict __ps))
|
||
|
|
{
|
||
|
|
return __glibc_fortify_n (mbsnrtowcs, __len, sizeof (wchar_t),
|
||
|
|
__glibc_objsize (__dst),
|
||
|
|
__dst, __src, __nmc, __len, __ps);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
extern size_t __REDIRECT_NTH (__wcsnrtombs_alias,
|
||
|
|
(char *__restrict __dst,
|
||
|
|
const wchar_t **__restrict __src,
|
||
|
|
size_t __nwc, size_t __len,
|
||
|
|
mbstate_t *__restrict __ps), wcsnrtombs);
|
||
|
|
extern size_t __REDIRECT_NTH (__wcsnrtombs_chk_warn,
|
||
|
|
(char *__restrict __dst,
|
||
|
|
const wchar_t **__restrict __src,
|
||
|
|
size_t __nwc, size_t __len,
|
||
|
|
mbstate_t *__restrict __ps,
|
||
|
|
size_t __dstlen), __wcsnrtombs_chk)
|
||
|
|
__warnattr ("wcsnrtombs called with dst buffer smaller than len");
|
||
|
|
|
||
|
|
__fortify_function size_t
|
||
|
|
__NTH (wcsnrtombs (char *__restrict __dst, const wchar_t **__restrict __src,
|
||
|
|
size_t __nwc, size_t __len, mbstate_t *__restrict __ps))
|
||
|
|
{
|
||
|
|
return __glibc_fortify (wcsnrtombs, __len, sizeof (char),
|
||
|
|
__glibc_objsize (__dst),
|
||
|
|
__dst, __src, __nwc, __len, __ps);
|
||
|
|
}
|
||
|
|
#endif
|