/* Checking macros for wchar functions. Copyright (C) 2005-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #ifndef _WCHAR_H # error "Never include <bits/wchar2.h> directly; use <wchar.h> instead." #endif extern wchar_t *__wmemcpy_chk (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n, size_t __ns1) __THROW; extern wchar_t *__REDIRECT_NTH (__wmemcpy_alias, (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n), wmemcpy); extern wchar_t *__REDIRECT_NTH (__wmemcpy_chk_warn, (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n, size_t __ns1), __wmemcpy_chk) __warnattr ("wmemcpy called with length bigger than size of destination " "buffer"); __fortify_function wchar_t * __NTH (wmemcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n)) { if (__bos0 (__s1) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wmemcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); if (__n > __bos0 (__s1) / sizeof (wchar_t)) return __wmemcpy_chk_warn (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); } return __wmemcpy_alias (__s1, __s2, __n); } extern wchar_t *__wmemmove_chk (wchar_t *__s1, const wchar_t *__s2, size_t __n, size_t __ns1) __THROW; extern wchar_t *__REDIRECT_NTH (__wmemmove_alias, (wchar_t *__s1, const wchar_t *__s2, size_t __n), wmemmove); extern wchar_t *__REDIRECT_NTH (__wmemmove_chk_warn, (wchar_t *__s1, const wchar_t *__s2, size_t __n, size_t __ns1), __wmemmove_chk) __warnattr ("wmemmove called with length bigger than size of destination " "buffer"); __fortify_function wchar_t * __NTH (wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n)) { if (__bos0 (__s1) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wmemmove_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); if (__n > __bos0 (__s1) / sizeof (wchar_t)) return __wmemmove_chk_warn (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); } return __wmemmove_alias (__s1, __s2, __n); } #ifdef __USE_GNU extern wchar_t *__wmempcpy_chk (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n, size_t __ns1) __THROW; extern wchar_t *__REDIRECT_NTH (__wmempcpy_alias, (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n), wmempcpy); extern wchar_t *__REDIRECT_NTH (__wmempcpy_chk_warn, (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n, size_t __ns1), __wmempcpy_chk) __warnattr ("wmempcpy called with length bigger than size of destination " "buffer"); __fortify_function wchar_t * __NTH (wmempcpy (wchar_t *__restrict __s1, const wchar_t *__restrict __s2, size_t __n)) { if (__bos0 (__s1) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wmempcpy_chk (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); if (__n > __bos0 (__s1) / sizeof (wchar_t)) return __wmempcpy_chk_warn (__s1, __s2, __n, __bos0 (__s1) / sizeof (wchar_t)); } return __wmempcpy_alias (__s1, __s2, __n); } #endif extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n, size_t __ns) __THROW; extern wchar_t *__REDIRECT_NTH (__wmemset_alias, (wchar_t *__s, wchar_t __c, size_t __n), wmemset); extern wchar_t *__REDIRECT_NTH (__wmemset_chk_warn, (wchar_t *__s, wchar_t __c, size_t __n, size_t __ns), __wmemset_chk) __warnattr ("wmemset called with length bigger than size of destination " "buffer"); __fortify_function wchar_t * __NTH (wmemset (wchar_t *__s, wchar_t __c, size_t __n)) { if (__bos0 (__s) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wmemset_chk (__s, __c, __n, __bos0 (__s) / sizeof (wchar_t)); if (__n > __bos0 (__s) / sizeof (wchar_t)) return __wmemset_chk_warn (__s, __c, __n, __bos0 (__s) / sizeof (wchar_t)); } return __wmemset_alias (__s, __c, __n); } extern wchar_t *__wcscpy_chk (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n) __THROW; extern wchar_t *__REDIRECT_NTH (__wcscpy_alias, (wchar_t *__restrict __dest, const wchar_t *__restrict __src), wcscpy); __fortify_function wchar_t * __NTH (wcscpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src)) { if (__bos (__dest) != (size_t) -1) return __wcscpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); return __wcscpy_alias (__dest, __src); } extern wchar_t *__wcpcpy_chk (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __destlen) __THROW; extern wchar_t *__REDIRECT_NTH (__wcpcpy_alias, (wchar_t *__restrict __dest, const wchar_t *__restrict __src), wcpcpy); __fortify_function wchar_t * __NTH (wcpcpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src)) { if (__bos (__dest) != (size_t) -1) return __wcpcpy_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); return __wcpcpy_alias (__dest, __src); } extern wchar_t *__wcsncpy_chk (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n, size_t __destlen) __THROW; extern wchar_t *__REDIRECT_NTH (__wcsncpy_alias, (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n), wcsncpy); extern wchar_t *__REDIRECT_NTH (__wcsncpy_chk_warn, (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n, size_t __destlen), __wcsncpy_chk) __warnattr ("wcsncpy called with length bigger than size of destination " "buffer"); __fortify_function wchar_t * __NTH (wcsncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n)) { if (__bos (__dest) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wcsncpy_chk (__dest, __src, __n, __bos (__dest) / sizeof (wchar_t)); if (__n > __bos (__dest) / sizeof (wchar_t)) return __wcsncpy_chk_warn (__dest, __src, __n, __bos (__dest) / sizeof (wchar_t)); } return __wcsncpy_alias (__dest, __src, __n); } extern wchar_t *__wcpncpy_chk (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n, size_t __destlen) __THROW; extern wchar_t *__REDIRECT_NTH (__wcpncpy_alias, (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n), wcpncpy); extern wchar_t *__REDIRECT_NTH (__wcpncpy_chk_warn, (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n, size_t __destlen), __wcpncpy_chk) __warnattr ("wcpncpy called with length bigger than size of destination " "buffer"); __fortify_function wchar_t * __NTH (wcpncpy (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n)) { if (__bos (__dest) != (size_t) -1) { if (!__builtin_constant_p (__n)) return __wcpncpy_chk (__dest, __src, __n, __bos (__dest) / sizeof (wchar_t)); if (__n > __bos (__dest) / sizeof (wchar_t)) return __wcpncpy_chk_warn (__dest, __src, __n, __bos (__dest) / sizeof (wchar_t)); } return __wcpncpy_alias (__dest, __src, __n); } extern wchar_t *__wcscat_chk (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __destlen) __THROW; extern wchar_t *__REDIRECT_NTH (__wcscat_alias, (wchar_t *__restrict __dest, const wchar_t *__restrict __src), wcscat); __fortify_function wchar_t * __NTH (wcscat (wchar_t *__restrict __dest, const wchar_t *__restrict __src)) { if (__bos (__dest) != (size_t) -1) return __wcscat_chk (__dest, __src, __bos (__dest) / sizeof (wchar_t)); return __wcscat_alias (__dest, __src); } extern wchar_t *__wcsncat_chk (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n, size_t __destlen) __THROW; extern wchar_t *__REDIRECT_NTH (__wcsncat_alias, (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n), wcsncat); __fortify_function wchar_t * __NTH (wcsncat (wchar_t *__restrict __dest, const wchar_t *__restrict __src, size_t __n)) { if (__bos (__dest) != (size_t) -1) return __wcsncat_chk (__dest, __src, __n, __bos (__dest) / sizeof (wchar_t)); return __wcsncat_alias (__dest, __src, __n); } extern int __swprintf_chk (wchar_t *__restrict __s, size_t __n, int __flag, size_t __s_len, const wchar_t *__restrict __format, ...) __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 6))) */; extern int __REDIRECT_NTH_LDBL (__swprintf_alias, (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, ...), swprintf); #ifdef __va_arg_pack __fortify_function int __NTH (swprintf (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, ...)) { if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) return __swprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, __bos (__s) / sizeof (wchar_t), __fmt, __va_arg_pack ()); return __swprintf_alias (__s, __n, __fmt, __va_arg_pack ()); } #elif !defined __cplusplus /* XXX We might want to have support in gcc for swprintf. */ # define swprintf(s, n, ...) \ (__bos (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \ ? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, \ __bos (s) / sizeof (wchar_t), __VA_ARGS__) \ : swprintf (s, n, __VA_ARGS__)) #endif extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n, int __flag, size_t __s_len, const wchar_t *__restrict __format, __gnuc_va_list __arg) __THROW /* __attribute__ ((__format__ (__wprintf__, 5, 0))) */; extern int __REDIRECT_NTH_LDBL (__vswprintf_alias, (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, __gnuc_va_list __ap), vswprintf); __fortify_function int __NTH (vswprintf (wchar_t *__restrict __s, size_t __n, const wchar_t *__restrict __fmt, __gnuc_va_list __ap)) { if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, __bos (__s) / sizeof (wchar_t), __fmt, __ap); return __vswprintf_alias (__s, __n, __fmt, __ap); } #if __USE_FORTIFY_LEVEL > 1 extern int __fwprintf_chk (__FILE *__restrict __stream, int __flag, const wchar_t *__restrict __format, ...); extern int __wprintf_chk (int __flag, const wchar_t *__restrict __format, ...); extern int __vfwprintf_chk (__FILE *__restrict __stream, int __flag, const wchar_t *__restrict __format, __gnuc_va_list __ap); extern int __vwprintf_chk (int __flag, const wchar_t *__restrict __format, __gnuc_va_list __ap); # ifdef __va_arg_pack __fortify_function int wprintf (const wchar_t *__restrict __fmt, ...) { return __wprintf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ()); } __fortify_function int fwprintf (__FILE *__restrict __stream, const wchar_t *__restrict __fmt, ...) { return __fwprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ()); } # elif !defined __cplusplus # define wprintf(...) \ __wprintf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__) # define fwprintf(stream, ...) \ __fwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__) # endif __fortify_function int vwprintf (const wchar_t *__restrict __fmt, __gnuc_va_list __ap) { return __vwprintf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __ap); } __fortify_function int vfwprintf (__FILE *__restrict __stream, const wchar_t *__restrict __fmt, __gnuc_va_list __ap) { return __vfwprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt, __ap); } #endif extern wchar_t *__fgetws_chk (wchar_t *__restrict __s, size_t __size, int __n, __FILE *__restrict __stream) __wur; extern wchar_t *__REDIRECT (__fgetws_alias, (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream), fgetws) __wur; extern wchar_t *__REDIRECT (__fgetws_chk_warn, (wchar_t *__restrict __s, size_t __size, int __n, __FILE *__restrict __stream), __fgetws_chk) __wur __warnattr ("fgetws called with bigger size than length " "of destination buffer"); __fortify_function __wur wchar_t * fgetws (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream) { if (__bos (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) return __fgetws_chk (__s, __bos (__s) / sizeof (wchar_t), __n, __stream); if ((size_t) __n > __bos (__s) / sizeof (wchar_t)) return __fgetws_chk_warn (__s, __bos (__s) / sizeof (wchar_t), __n, __stream); } return __fgetws_alias (__s, __n, __stream); } #ifdef __USE_GNU extern wchar_t *__fgetws_unlocked_chk (wchar_t *__restrict __s, size_t __size, int __n, __FILE *__restrict __stream) __wur; extern wchar_t *__REDIRECT (__fgetws_unlocked_alias, (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream), fgetws_unlocked) __wur; extern wchar_t *__REDIRECT (__fgetws_unlocked_chk_warn, (wchar_t *__restrict __s, size_t __size, int __n, __FILE *__restrict __stream), __fgetws_unlocked_chk) __wur __warnattr ("fgetws_unlocked called with bigger size than length " "of destination buffer"); __fortify_function __wur wchar_t * fgetws_unlocked (wchar_t *__restrict __s, int __n, __FILE *__restrict __stream) { if (__bos (__s) != (size_t) -1) { if (!__builtin_constant_p (__n) || __n <= 0) return __fgetws_unlocked_chk (__s, __bos (__s) / sizeof (wchar_t), __n, __stream); if ((size_t) __n > __bos (__s) / sizeof (wchar_t)) return __fgetws_unlocked_chk_warn (__s, __bos (__s) / sizeof (wchar_t), __n, __stream); } return __fgetws_unlocked_alias (__s, __n, __stream); } #endif extern size_t __wcrtomb_chk (char *__restrict __s, wchar_t __wchar, mbstate_t *__restrict __p, size_t __buflen) __THROW __wur; 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 (__bos (__s) != (size_t) -1 && __WCHAR_MB_LEN_MAX > __bos (__s)) return __wcrtomb_chk (__s, __wchar, __ps, __bos (__s)); return __wcrtomb_alias (__s, __wchar, __ps); } extern size_t __mbsrtowcs_chk (wchar_t *__restrict __dst, const char **__restrict __src, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) __THROW; 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)) { if (__bos (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __mbsrtowcs_chk (__dst, __src, __len, __ps, __bos (__dst) / sizeof (wchar_t)); if (__len > __bos (__dst) / sizeof (wchar_t)) return __mbsrtowcs_chk_warn (__dst, __src, __len, __ps, __bos (__dst) / sizeof (wchar_t)); } return __mbsrtowcs_alias (__dst, __src, __len, __ps); } extern size_t __wcsrtombs_chk (char *__restrict __dst, const wchar_t **__restrict __src, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) __THROW; 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)) { if (__bos (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __wcsrtombs_chk (__dst, __src, __len, __ps, __bos (__dst)); if (__len > __bos (__dst)) return __wcsrtombs_chk_warn (__dst, __src, __len, __ps, __bos (__dst)); } return __wcsrtombs_alias (__dst, __src, __len, __ps); } #ifdef __USE_GNU extern size_t __mbsnrtowcs_chk (wchar_t *__restrict __dst, const char **__restrict __src, size_t __nmc, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) __THROW; 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)) { if (__bos (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __mbsnrtowcs_chk (__dst, __src, __nmc, __len, __ps, __bos (__dst) / sizeof (wchar_t)); if (__len > __bos (__dst) / sizeof (wchar_t)) return __mbsnrtowcs_chk_warn (__dst, __src, __nmc, __len, __ps, __bos (__dst) / sizeof (wchar_t)); } return __mbsnrtowcs_alias (__dst, __src, __nmc, __len, __ps); } extern size_t __wcsnrtombs_chk (char *__restrict __dst, const wchar_t **__restrict __src, size_t __nwc, size_t __len, mbstate_t *__restrict __ps, size_t __dstlen) __THROW; 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)) { if (__bos (__dst) != (size_t) -1) { if (!__builtin_constant_p (__len)) return __wcsnrtombs_chk (__dst, __src, __nwc, __len, __ps, __bos (__dst)); if (__len > __bos (__dst)) return __wcsnrtombs_chk_warn (__dst, __src, __nwc, __len, __ps, __bos (__dst)); } return __wcsnrtombs_alias (__dst, __src, __nwc, __len, __ps); } #endif