glibc/include/wchar.h
Zack Weinberg 4e2f43f842 Use PRINTF_FORTIFY instead of _IO_FLAGS2_FORTIFY (bug 11319)
The _chk variants of all of the printf functions become much simpler.
This is the last thing that we needed _IO_acquire_lock_clear_flags2
for, so it can go as well.  I took the opportunity to make the headers
included and the names of all local variables consistent across all the
affected files.

Since we ultimately want to get rid of __no_long_double as well, it
must be possible to get all of the nontrivial effects of the _chk
functions by calling the _internal functions with appropriate flags.
For most of the __(v)xprintf_chk functions, this is covered by
PRINTF_FORTIFY plus some up-front argument checks that can be
duplicated.  However, __(v)sprintf_chk installs a custom jump table so
that it can crash instead of overflowing the output buffer.  This
functionality is moved to __vsprintf_internal, which now has a
'maxlen' argument like __vsnprintf_internal; to get the unsafe
behavior of ordinary (v)sprintf, pass -1 for that argument.

obstack_printf_chk and obstack_vprintf_chk are no longer in the same
file.

As a side-effect of the unification of both fortified and non-fortified
vdprintf initialization, this patch fixes bug 11319 for __dprintf_chk
and __vdprintf_chk, which was previously fixed only for dprintf and
vdprintf by the commit

commit 7ca890b88e
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Wed Feb 24 16:07:57 2010 -0800

    Fix reporting of I/O errors in *dprintf functions.

This patch adds a test case to avoid regressions.

Tested for powerpc and powerpc64le.
2018-12-05 18:15:43 -02:00

253 lines
9.5 KiB
C

#ifndef _WCHAR_H
# include <wcsmbs/wchar.h>
# ifndef _ISOMAC
#include <bits/floatn.h>
extern __typeof (wcscasecmp_l) __wcscasecmp_l;
extern __typeof (wcsncasecmp_l) __wcsncasecmp_l;
extern __typeof (wcscoll_l) __wcscoll_l;
extern __typeof (wcsxfrm_l) __wcsxfrm_l;
extern __typeof (wcstol_l) __wcstol_l;
extern __typeof (wcstoul_l) __wcstoul_l;
extern __typeof (wcstoll_l) __wcstoll_l;
extern __typeof (wcstoull_l) __wcstoull_l;
extern __typeof (wcstod_l) __wcstod_l;
extern __typeof (wcstof_l) __wcstof_l;
extern __typeof (wcstold_l) __wcstold_l;
extern __typeof (wcsftime_l) __wcsftime_l;
libc_hidden_proto (__wcstol_l)
libc_hidden_proto (__wcstoul_l)
libc_hidden_proto (__wcstoll_l)
libc_hidden_proto (__wcstoull_l)
libc_hidden_proto (__wcstod_l)
libc_hidden_proto (__wcstof_l)
libc_hidden_proto (__wcstold_l)
libc_hidden_proto (__wcsftime_l)
extern double __wcstod_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __group)
__THROW;
extern float __wcstof_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __group)
__THROW;
extern long double __wcstold_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __group) __THROW;
extern long int __wcstol_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, int __group) __THROW;
extern unsigned long int __wcstoul_internal (const wchar_t *__restrict __npt,
wchar_t **__restrict __endptr,
int __base, int __group) __THROW;
__extension__
extern long long int __wcstoll_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, int __group) __THROW;
__extension__
extern unsigned long long int __wcstoull_internal (const wchar_t *
__restrict __nptr,
wchar_t **
__restrict __endptr,
int __base,
int __group) __THROW;
extern unsigned long long int ____wcstoull_l_internal (const wchar_t *,
wchar_t **, int, int,
locale_t);
libc_hidden_proto (__wcstof_internal)
libc_hidden_proto (__wcstod_internal)
libc_hidden_proto (__wcstold_internal)
libc_hidden_proto (__wcstol_internal)
libc_hidden_proto (__wcstoll_internal)
libc_hidden_proto (__wcstoul_internal)
libc_hidden_proto (__wcstoull_internal)
libc_hidden_proto (wcstof)
libc_hidden_proto (wcstod)
libc_hidden_proto (wcstold)
libc_hidden_proto (wcstol)
libc_hidden_proto (wcstoll)
libc_hidden_proto (wcstoul)
libc_hidden_proto (wcstoull)
extern float ____wcstof_l_internal (const wchar_t *, wchar_t **, int,
locale_t) attribute_hidden;
extern double ____wcstod_l_internal (const wchar_t *, wchar_t **, int,
locale_t) attribute_hidden;
extern long double ____wcstold_l_internal (const wchar_t *, wchar_t **,
int, locale_t) attribute_hidden;
extern long int ____wcstol_l_internal (const wchar_t *, wchar_t **, int,
int, locale_t) attribute_hidden;
extern unsigned long int ____wcstoul_l_internal (const wchar_t *,
wchar_t **,
int, int, locale_t)
attribute_hidden;
extern long long int ____wcstoll_l_internal (const wchar_t *, wchar_t **,
int, int, locale_t)
attribute_hidden;
extern unsigned long long int ____wcstoull_l_internal (const wchar_t *,
wchar_t **, int, int,
locale_t)
attribute_hidden;
#if __HAVE_DISTINCT_FLOAT128
extern __typeof (wcstof128_l) __wcstof128_l;
libc_hidden_proto (__wcstof128_l)
extern _Float128 __wcstof128_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __group) __THROW;
extern _Float128 ____wcstof128_l_internal (const wchar_t *, wchar_t **, int,
locale_t) attribute_hidden;
libc_hidden_proto (__wcstof128_internal)
libc_hidden_proto (wcstof128)
#endif
libc_hidden_proto (__wcscasecmp_l)
libc_hidden_proto (__wcsncasecmp_l)
libc_hidden_proto (__wcscoll_l)
libc_hidden_proto (__wcsxfrm_l)
libc_hidden_proto (fputws_unlocked)
libc_hidden_proto (putwc_unlocked)
libc_hidden_proto (putwc)
libc_hidden_proto (vswscanf)
libc_hidden_proto (mbrtowc)
libc_hidden_proto (wcrtomb)
extern int __wcscmp (const wchar_t *__s1, const wchar_t *__s2)
__THROW __attribute_pure__;
libc_hidden_proto (__wcscmp)
libc_hidden_proto (wcsftime)
libc_hidden_proto (wcsspn)
libc_hidden_proto (wcschr)
/* The C++ overloading of wcschr means we have to repeat the type to
declare __wcschr instead of using typeof, to avoid errors in C++
tests; in addition, __THROW cannot be used with a function type
from typeof in C++. The same applies to __wmemchr and, as regards
__THROW, to __wcscmp and __wcscoll. */
extern wchar_t *__wcschr (const wchar_t *__wcs, wchar_t __wc)
__THROW __attribute_pure__;
libc_hidden_proto (__wcschr)
extern int __wcscoll (const wchar_t *__s1, const wchar_t *__s2) __THROW;
libc_hidden_proto (__wcscoll)
libc_hidden_proto (wcspbrk)
extern __typeof (wmemset) __wmemset;
extern wchar_t *__wmemchr (const wchar_t *__s, wchar_t __c, size_t __n)
__THROW __attribute_pure__;
libc_hidden_proto (wmemchr)
libc_hidden_proto (__wmemchr)
libc_hidden_proto (wmemset)
libc_hidden_proto (__wmemset)
/* Now define the internal interfaces. */
extern int __wcscasecmp (const wchar_t *__s1, const wchar_t *__s2)
__attribute_pure__;
extern int __wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2,
size_t __n)
__attribute_pure__;
extern size_t __wcslen (const wchar_t *__s) __attribute_pure__;
extern size_t __wcsnlen (const wchar_t *__s, size_t __maxlen)
__attribute_pure__;
extern wchar_t *__wcscat (wchar_t *dest, const wchar_t *src);
extern wint_t __btowc (int __c) attribute_hidden;
extern int __mbsinit (const __mbstate_t *__ps);
extern size_t __mbrtowc (wchar_t *__restrict __pwc,
const char *__restrict __s, size_t __n,
__mbstate_t *__restrict __p);
libc_hidden_proto (__mbrtowc)
libc_hidden_proto (__mbrlen)
extern size_t __wcrtomb (char *__restrict __s, wchar_t __wc,
__mbstate_t *__restrict __ps) attribute_hidden;
extern size_t __mbsrtowcs (wchar_t *__restrict __dst,
const char **__restrict __src,
size_t __len, __mbstate_t *__restrict __ps)
attribute_hidden;
extern size_t __wcsrtombs (char *__restrict __dst,
const wchar_t **__restrict __src,
size_t __len, __mbstate_t *__restrict __ps)
attribute_hidden;
extern size_t __mbsnrtowcs (wchar_t *__restrict __dst,
const char **__restrict __src, size_t __nmc,
size_t __len, __mbstate_t *__restrict __ps)
attribute_hidden;
extern size_t __wcsnrtombs (char *__restrict __dst,
const wchar_t **__restrict __src,
size_t __nwc, size_t __len,
__mbstate_t *__restrict __ps)
attribute_hidden;
extern wchar_t *__wcsncpy (wchar_t *__restrict __dest,
const wchar_t *__restrict __src, size_t __n);
extern wchar_t *__wcpcpy (wchar_t *__dest, const wchar_t *__src);
extern wchar_t *__wcpncpy (wchar_t *__dest, const wchar_t *__src,
size_t __n);
extern wchar_t *__wmemcpy (wchar_t *__s1, const wchar_t *s2,
size_t __n) attribute_hidden;
extern wchar_t *__wmempcpy (wchar_t *__restrict __s1,
const wchar_t *__restrict __s2,
size_t __n) attribute_hidden;
extern wchar_t *__wmemmove (wchar_t *__s1, const wchar_t *__s2,
size_t __n) attribute_hidden;
extern wchar_t *__wcschrnul (const wchar_t *__s, wchar_t __wc)
__attribute_pure__;
extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n,
size_t __ns) __THROW;
extern int __vfwscanf (__FILE *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
attribute_hidden
/* __attribute__ ((__format__ (__wscanf__, 2, 0)) */;
extern int __fwprintf (__FILE *__restrict __s,
const wchar_t *__restrict __format, ...)
attribute_hidden
/* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
extern int __vfwprintf_chk (FILE *__restrict __s, int __flag,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
/* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
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)
/* __attribute__ ((__format__ (__wprintf__, 5, 0))) */;
extern int __isoc99_fwscanf (__FILE *__restrict __stream,
const wchar_t *__restrict __format, ...);
extern int __isoc99_wscanf (const wchar_t *__restrict __format, ...);
extern int __isoc99_swscanf (const wchar_t *__restrict __s,
const wchar_t *__restrict __format, ...)
__THROW;
extern int __isoc99_vfwscanf (__FILE *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg);
extern int __isoc99_vwscanf (const wchar_t *__restrict __format,
__gnuc_va_list __arg);
extern int __isoc99_vswscanf (const wchar_t *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg) __THROW;
extern int __vswscanf (const wchar_t *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg) __THROW;
libc_hidden_proto (__isoc99_vswscanf)
libc_hidden_proto (__vswscanf)
libc_hidden_proto (__isoc99_vfwscanf)
/* Internal functions. */
extern size_t __mbsrtowcs_l (wchar_t *dst, const char **src, size_t len,
mbstate_t *ps, locale_t l) attribute_hidden;
/* Special version. We know that all uses of mbsinit inside the libc
have a non-NULL parameter. And certainly we can access the
internals of the data structure directly. */
# define mbsinit(state) ((state)->__count == 0)
# define __mbsinit(state) ((state)->__count == 0)
# endif
#endif