diff options
Diffstat (limited to 'wcsmbs')
| -rw-r--r-- | wcsmbs/bits/wchar2.h | 288 | ||||
| -rw-r--r-- | wcsmbs/wchar.h | 7 | ||||
| -rw-r--r-- | wcsmbs/wcsncpy.c | 5 |
3 files changed, 298 insertions, 2 deletions
diff --git a/wcsmbs/bits/wchar2.h b/wcsmbs/bits/wchar2.h new file mode 100644 index 0000000000..5d5b102649 --- /dev/null +++ b/wcsmbs/bits/wchar2.h @@ -0,0 +1,288 @@ +/* Checking macros for wchar functions. + Copyright (C) 2005 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _WCHAR_H +# error "Never include <bits/wchar.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 (__wmemcpy_alias, (wchar_t *__restrict __s1, + __const wchar_t *__restrict __s2, + size_t __n), wmemcpy) __THROW; + +extern __always_inline wchar_t * +wmemcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, + size_t __n) +{ + if (__bos0 (__s1) != (size_t) -1) + return __wmemcpy_chk (__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 (__wmemmove_alias, (wchar_t *__s1, + __const wchar_t *__s2, + size_t __n), wmemmove) __THROW; + +extern __always_inline wchar_t * +wmemmove (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, + size_t __n) +{ + if (__bos0 (__s1) != (size_t) -1) + return __wmemmove_chk (__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 (__wmempcpy_alias, + (wchar_t *__restrict __s1, + __const wchar_t *__restrict __s2, + size_t __n), wmempcpy) __THROW; + +extern __always_inline wchar_t * +wmempcpy (wchar_t *__restrict __s1, __const wchar_t *__restrict __s2, + size_t __n) +{ + if (__bos0 (__s1) != (size_t) -1) + return __wmempcpy_chk (__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 (__wmemset_alias, (wchar_t *__s, wchar_t __c, + size_t __n), wmemset) __THROW; + +extern __always_inline wchar_t * +wmemset (wchar_t *__restrict __s, wchar_t __c, size_t __n) +{ + if (__bos0 (__s) != (size_t) -1) + return __wmemset_chk (__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 (__wcscpy_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src), wcscpy) + __THROW; + +extern __always_inline wchar_t * +wcscpy (wchar_t *__dest, __const wchar_t *__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 *__dest, __const wchar_t *__src, + size_t __destlen) __THROW; +extern wchar_t *__REDIRECT (__wcpcpy_alias, (wchar_t *__dest, + __const wchar_t *__src), wcpcpy) + __THROW; + +extern __always_inline wchar_t * +wcpcpy (wchar_t *__dest, __const wchar_t *__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 (__wcsncpy_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n), + wcsncpy) __THROW; + +extern __always_inline wchar_t * +wcsncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n) +{ + if (__bos (__dest) != (size_t) -1 + && (!__builtin_constant_p (__n) || __bos (__dest) >= __n)) + return __wcsncpy_chk (__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 (__wcpncpy_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n), + wcpncpy) __THROW; + +extern __always_inline wchar_t * +wcpncpy (wchar_t *__dest, __const wchar_t *__src, size_t __n) +{ + if (__bos (__dest) != (size_t) -1 + && (!__builtin_constant_p (__n) || __bos (__dest) >= __n)) + return __wcpncpy_chk (__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 (__wcscat_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src), wcscat) + __THROW; + +extern __always_inline wchar_t * +wcscat (wchar_t *__dest, __const wchar_t *__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 (__wcsncat_alias, + (wchar_t *__restrict __dest, + __const wchar_t *__restrict __src, size_t __n), + wcsncat) __THROW; + +extern __always_inline wchar_t * +wcsncat (wchar_t *__dest, __const wchar_t *__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))) */; + +/* XXX We might want to have support in gcc for swprintf. */ +#define swprintf(s, n, format, ...) \ + (__bos (s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1 \ + ? __swprintf_chk (s, n, __USE_FORTIFY_LEVEL - 1, __bos (s), format, \ + __VA_ARGS__) \ + : swprintf (s, n, format, __VA_ARGS__)) + + +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 (__vswprintf_alias, + (wchar_t *__restrict __s, size_t __n, + __const wchar_t *__restrict __format, + __gnuc_va_list __arg), vswprintf) + __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */; + + +extern __always_inline int +vswprintf (wchar_t *__s, size_t __n, __const wchar_t *__format, + __gnuc_va_list __arg) +{ + if (__bos (__s) != (size_t) -1 || __USE_FORTIFY_LEVEL > 1) + return __vswprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1, __bos (__s), + __format, __arg); + return vswprintf (__s, __n, __format, __arg); +} + + +#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, + _G_va_list __ap); +extern int __vwprintf_chk (int __flag, __const wchar_t *__restrict __format, + _G_va_list __ap); + +# define wprintf(...) \ + __wprintf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__) +# define fwprintf(stream, ...) \ + __fwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__) +# define vwprintf(format, ap) \ + __vwprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap) +# define vfwprintf(stream, format, ap) \ + __vfwprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, 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 __always_inline __wur wchar_t * +fgetws (wchar_t *__restrict __s, int __n, FILE *__restrict __stream) +{ + if (__bos (__s) != (size_t) -1 + && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s))) + return __fgetws_chk (__s, __bos (__s), __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 __always_inline __wur wchar_t * +fgetws_unlocked (wchar_t *__restrict __s, int __n, FILE *__restrict __stream) +{ + if (__bos (__s) != (size_t) -1 + && (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s))) + return __fgetws_unlocked_chk (__s, __bos (__s), __n, __stream); + return __fgetws_unlocked_alias (__s, __n, __stream); +} +#endif diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h index fe4ee80bff..0c02dcc574 100644 --- a/wcsmbs/wchar.h +++ b/wcsmbs/wchar.h @@ -833,6 +833,13 @@ extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize, # include <wctype.h> #endif + +/* Define some macros helping to catch buffer overflows. */ +#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus +# include <bits/wchar2.h> +#endif + + __END_DECLS #endif /* _WCHAR_H defined */ diff --git a/wcsmbs/wcsncpy.c b/wcsmbs/wcsncpy.c index 8469d94d79..06a20d2333 100644 --- a/wcsmbs/wcsncpy.c +++ b/wcsmbs/wcsncpy.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. +/* Copyright (C) 1995, 1996, 1997, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. @@ -22,7 +22,7 @@ /* Copy no more than N wide-characters of SRC to DEST. */ wchar_t * -wcsncpy (dest, src, n) +__wcsncpy (dest, src, n) wchar_t *dest; const wchar_t *src; size_t n; @@ -84,3 +84,4 @@ wcsncpy (dest, src, n) return s; } +weak_alias (__wcsncpy, wcsncpy) |