diff options
Diffstat (limited to 'debug/vswprintf_chk.c')
-rw-r--r-- | debug/vswprintf_chk.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/debug/vswprintf_chk.c b/debug/vswprintf_chk.c deleted file mode 100644 index f9a50c6..0000000 --- a/debug/vswprintf_chk.c +++ /dev/null @@ -1,75 +0,0 @@ -/* Copyright (C) 1991,1995,1997,1998,2004,2005 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. */ - -#include <stdarg.h> -#include <wchar.h> -#include "../libio/libioP.h" -#include "../libio/strfile.h" - - -/* Write formatted output into S, according to the format - string FORMAT, writing no more than MAXLEN characters. */ -/* VARARGS5 */ -int -__vswprintf_chk (wchar_t *s, size_t maxlen, int flags, size_t slen, - const wchar_t *format, va_list args) -{ - /* XXX Maybe for less strict version do not fail immediately. - Though, maxlen is supposed to be the size of buffer pointed - to by s, so a conforming program can't pass such maxlen - to *snprintf. */ - if (__builtin_expect (slen < maxlen, 0)) - __chk_fail (); - - _IO_wstrnfile sf; - struct _IO_wide_data wd; - int ret; -#ifdef _IO_MTSAFE_IO - sf.f._sbf._f._lock = NULL; -#endif - - /* We need to handle the special case where MAXLEN is 0. Use the - overflow buffer right from the start. */ - if (__builtin_expect (maxlen == 0, 0)) - /* Since we have to write at least the terminating L'\0' a buffer - length of zero always makes the function fail. */ - return -1; - - _IO_no_init (&sf.f._sbf._f, _IO_USER_LOCK, 0, &wd, &_IO_wstrn_jumps); - _IO_fwide (&sf.f._sbf._f, 1); - s[0] = L'\0'; - - /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n - can only come from read-only format strings. */ - if (flags > 0) - sf.f._sbf._f._flags2 |= _IO_FLAGS2_FORTIFY; - - _IO_wstr_init_static (&sf.f._sbf._f, s, maxlen - 1, s); - ret = _IO_vfwprintf ((_IO_FILE *) &sf.f._sbf, format, args); - - if (sf.f._sbf._f._wide_data->_IO_buf_base == sf.overflow_buf) - /* ISO C99 requires swprintf/vswprintf to return an error if the - output does not fit int he provided buffer. */ - return -1; - - /* Terminate the string. */ - *sf.f._sbf._f._wide_data->_IO_write_ptr = '\0'; - - return ret; -} -libc_hidden_def (__vswprintf_chk) |