185 lines
6.1 KiB
C
185 lines
6.1 KiB
C
/* Copyright (C) 2004, 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 _STRING_H
|
|
# error "Never use <bits/string3.h> directly; include <string.h> instead."
|
|
#endif
|
|
|
|
/* XXX This is temporarily. We should not redefine any of the symbols
|
|
and instead integrate the error checking into the original
|
|
definitions. */
|
|
#undef memcpy
|
|
#undef memmove
|
|
#undef memset
|
|
#undef strcat
|
|
#undef strcpy
|
|
#undef strncat
|
|
#undef strncpy
|
|
#ifdef __USE_GNU
|
|
# undef mempcpy
|
|
# undef stpcpy
|
|
#endif
|
|
#ifdef __USE_BSD
|
|
# undef bcopy
|
|
# undef bzero
|
|
#endif
|
|
|
|
|
|
#define memcpy(dest, src, len) \
|
|
((__bos0 (dest) != (size_t) -1) \
|
|
? __builtin___memcpy_chk (dest, src, len, __bos0 (dest)) \
|
|
: __memcpy_ichk (dest, src, len))
|
|
static __always_inline void *
|
|
__NTH (__memcpy_ichk (void *__restrict __dest, __const void *__restrict __src,
|
|
size_t __len))
|
|
{
|
|
return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest));
|
|
}
|
|
|
|
|
|
#define memmove(dest, src, len) \
|
|
((__bos0 (dest) != (size_t) -1) \
|
|
? __builtin___memmove_chk (dest, src, len, __bos0 (dest)) \
|
|
: __memmove_ichk (dest, src, len))
|
|
static __always_inline void *
|
|
__NTH (__memmove_ichk (void *__dest, __const void *__src, size_t __len))
|
|
{
|
|
return __builtin___memmove_chk (__dest, __src, __len, __bos0 (__dest));
|
|
}
|
|
|
|
|
|
#ifdef __USE_GNU
|
|
# define mempcpy(dest, src, len) \
|
|
((__bos0 (dest) != (size_t) -1) \
|
|
? __builtin___mempcpy_chk (dest, src, len, __bos0 (dest)) \
|
|
: __mempcpy_ichk (dest, src, len))
|
|
static __always_inline void *
|
|
__NTH (__mempcpy_ichk (void *__restrict __dest,
|
|
__const void *__restrict __src, size_t __len))
|
|
{
|
|
return __builtin___mempcpy_chk (__dest, __src, __len, __bos0 (__dest));
|
|
}
|
|
#endif
|
|
|
|
|
|
/* The first two tests here help to catch a somewhat common problem
|
|
where the second and third parameter are transposed. This is
|
|
especially problematic if the intended fill value is zero. In this
|
|
case no work is done at all. We detect these problems by referring
|
|
non-existing functions. */
|
|
__warndecl (__warn_memset_zero_len,
|
|
"memset used with constant zero length parameter; this could be due to transposed parameters");
|
|
#define memset(dest, ch, len) \
|
|
(__builtin_constant_p (len) && (len) == 0 \
|
|
? (__warn_memset_zero_len (), (void) (ch), (void) (len), (void *) (dest)) \
|
|
: ((__bos0 (dest) != (size_t) -1) \
|
|
? __builtin___memset_chk (dest, ch, len, __bos0 (dest)) \
|
|
: __memset_ichk (dest, ch, len)))
|
|
static __always_inline void *
|
|
__NTH (__memset_ichk (void *__dest, int __ch, size_t __len))
|
|
{
|
|
return __builtin___memset_chk (__dest, __ch, __len, __bos0 (__dest));
|
|
}
|
|
|
|
#ifdef __USE_BSD
|
|
# define bcopy(src, dest, len) ((void) \
|
|
((__bos0 (dest) != (size_t) -1) \
|
|
? __builtin___memmove_chk (dest, src, len, __bos0 (dest)) \
|
|
: __memmove_ichk (dest, src, len)))
|
|
# define bzero(dest, len) ((void) \
|
|
((__bos0 (dest) != (size_t) -1) \
|
|
? __builtin___memset_chk (dest, '\0', len, __bos0 (dest)) \
|
|
: __memset_ichk (dest, '\0', len)))
|
|
#endif
|
|
|
|
|
|
#define strcpy(dest, src) \
|
|
((__bos (dest) != (size_t) -1) \
|
|
? __builtin___strcpy_chk (dest, src, __bos (dest)) \
|
|
: __strcpy_ichk (dest, src))
|
|
static __always_inline char *
|
|
__NTH (__strcpy_ichk (char *__restrict __dest, __const char *__restrict __src))
|
|
{
|
|
return __builtin___strcpy_chk (__dest, __src, __bos (__dest));
|
|
}
|
|
|
|
|
|
#ifdef __USE_GNU
|
|
# define stpcpy(dest, src) \
|
|
((__bos (dest) != (size_t) -1) \
|
|
? __builtin___stpcpy_chk (dest, src, __bos (dest)) \
|
|
: __stpcpy_ichk (dest, src))
|
|
static __always_inline char *
|
|
__NTH (__stpcpy_ichk (char *__restrict __dest, __const char *__restrict __src))
|
|
{
|
|
return __builtin___stpcpy_chk (__dest, __src, __bos (__dest));
|
|
}
|
|
#endif
|
|
|
|
|
|
#define strncpy(dest, src, len) \
|
|
((__bos (dest) != (size_t) -1) \
|
|
? __builtin___strncpy_chk (dest, src, len, __bos (dest)) \
|
|
: __strncpy_ichk (dest, src, len))
|
|
static __always_inline char *
|
|
__NTH (__strncpy_ichk (char *__restrict __dest, __const char *__restrict __src,
|
|
size_t __len))
|
|
{
|
|
return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
|
|
}
|
|
|
|
|
|
// XXX We have no corresponding builtin yet.
|
|
extern char *__stpncpy_chk (char *__dest, __const char *__src, size_t __n,
|
|
size_t __destlen) __THROW;
|
|
extern char *__REDIRECT_NTH (__stpncpy_alias, (char *__dest,
|
|
__const char *__src,
|
|
size_t __n), stpncpy);
|
|
|
|
extern __always_inline char *
|
|
__NTH (stpncpy (char *__dest, __const char *__src, size_t __n))
|
|
{
|
|
if (__bos (__dest) != (size_t) -1
|
|
&& (!__builtin_constant_p (__n) || __n <= __bos (__dest)))
|
|
return __stpncpy_chk (__dest, __src, __n, __bos (__dest));
|
|
return __stpncpy_alias (__dest, __src, __n);
|
|
}
|
|
|
|
|
|
#define strcat(dest, src) \
|
|
((__bos (dest) != (size_t) -1) \
|
|
? __builtin___strcat_chk (dest, src, __bos (dest)) \
|
|
: __strcat_ichk (dest, src))
|
|
static __always_inline char *
|
|
__NTH (__strcat_ichk (char *__restrict __dest, __const char *__restrict __src))
|
|
{
|
|
return __builtin___strcat_chk (__dest, __src, __bos (__dest));
|
|
}
|
|
|
|
|
|
#define strncat(dest, src, len) \
|
|
((__bos (dest) != (size_t) -1) \
|
|
? __builtin___strncat_chk (dest, src, len, __bos (dest)) \
|
|
: __strncat_ichk (dest, src, len))
|
|
static __always_inline char *
|
|
__NTH (__strncat_ichk (char *__restrict __dest, __const char *__restrict __src,
|
|
size_t __len))
|
|
{
|
|
return __builtin___strncat_chk (__dest, __src, __len, __bos (__dest));
|
|
}
|