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/* Checking macros for wchar functions.
Copyright (C) 2005-2018 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
<http://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))
{
return __glibc_fortify_n (wmemcpy, __n, sizeof (wchar_t),
__glibc_objsize0 (__s1),
__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))
{
return __glibc_fortify_n (wmemmove, __n, sizeof (wchar_t),
__glibc_objsize0 (__s1),
__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))
{
return __glibc_fortify_n (wmempcpy, __n, sizeof (wchar_t),
__glibc_objsize0 (__s1),
__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))
{
return __glibc_fortify_n (wmemset, __n, sizeof (wchar_t),
__glibc_objsize0 (__s),
__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))
{
size_t sz = __glibc_objsize (__dest);
if (sz != (size_t) -1)
return __wcscpy_chk (__dest, __src, sz / 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))
{
size_t sz = __glibc_objsize (__dest);
if (sz != (size_t) -1)
return __wcpcpy_chk (__dest, __src, sz / 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))
{
return __glibc_fortify_n (wcsncpy, __n, sizeof (wchar_t),
__glibc_objsize (__dest),
__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))
{
return __glibc_fortify_n (wcpncpy, __n, sizeof (wchar_t),
__glibc_objsize (__dest),
__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))
{
size_t sz = __glibc_objsize (__dest);
if (sz != (size_t) -1)
return __wcscat_chk (__dest, __src, sz / 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))
{
size_t sz = __glibc_objsize (__dest);
if (sz != (size_t) -1)
return __wcsncat_chk (__dest, __src, __n, sz / 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, ...))
{
size_t sz = __glibc_objsize (__s);
if (sz != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
return __swprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
sz / 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, ...) \
(__glibc_objsize (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \
? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, \
__glibc_objsize (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))
{
size_t sz = __glibc_objsize (__s);
if (sz != (size_t) -1 || __USE_FORTIFY_LEVEL > 1)
return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
sz / 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)
{
size_t sz = __glibc_objsize (__s);
if (__glibc_safe_or_unknown_len (__n, sizeof (wchar_t), sz))
return __fgetws_alias (__s, __n, __stream);
if (__glibc_unsafe_len (__n, sizeof (wchar_t), sz))
return __fgetws_chk_warn (__s, sz / sizeof (wchar_t), __n, __stream);
return __fgetws_chk (__s, sz / sizeof (wchar_t), __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)
{
size_t sz = __glibc_objsize (__s);
if (__glibc_safe_or_unknown_len (__n, sizeof (wchar_t), sz))
return __fgetws_unlocked_alias (__s, __n, __stream);
if (__glibc_unsafe_len (__n, sizeof (wchar_t), sz))
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 __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 (__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 __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))
{
return __glibc_fortify_n (mbsrtowcs, __len, sizeof (wchar_t),
__glibc_objsize (__dst),
__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))
{
return __glibc_fortify (wcsrtombs, __len, sizeof (char),
__glibc_objsize (__dst),
__dst, __src, __len, __ps);
}
#ifdef __USE_XOPEN2K8
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))
{
return __glibc_fortify_n (mbsnrtowcs, __len, sizeof (wchar_t),
__glibc_objsize (__dst),
__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))
{
return __glibc_fortify (wcsnrtombs, __len, sizeof (char),
__glibc_objsize (__dst),
__dst, __src, __nwc, __len, __ps);
}
#endif