mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-03 04:01:43 +08:00
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/* Copyright (C) 1994-2012 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/>. */
|
|
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include "../libio/libioP.h"
|
|
#include "../libio/strfile.h"
|
|
|
|
|
|
static int _IO_str_chk_overflow (_IO_FILE *fp, int c) __THROW;
|
|
|
|
static int
|
|
_IO_str_chk_overflow (fp, c)
|
|
_IO_FILE *fp;
|
|
int c;
|
|
{
|
|
/* When we come to here this means the user supplied buffer is
|
|
filled. */
|
|
__chk_fail ();
|
|
}
|
|
|
|
|
|
static const struct _IO_jump_t _IO_str_chk_jumps =
|
|
{
|
|
JUMP_INIT_DUMMY,
|
|
JUMP_INIT(finish, _IO_str_finish),
|
|
JUMP_INIT(overflow, _IO_str_chk_overflow),
|
|
JUMP_INIT(underflow, _IO_str_underflow),
|
|
JUMP_INIT(uflow, _IO_default_uflow),
|
|
JUMP_INIT(pbackfail, _IO_str_pbackfail),
|
|
JUMP_INIT(xsputn, _IO_default_xsputn),
|
|
JUMP_INIT(xsgetn, _IO_default_xsgetn),
|
|
JUMP_INIT(seekoff, _IO_str_seekoff),
|
|
JUMP_INIT(seekpos, _IO_default_seekpos),
|
|
JUMP_INIT(setbuf, _IO_default_setbuf),
|
|
JUMP_INIT(sync, _IO_default_sync),
|
|
JUMP_INIT(doallocate, _IO_default_doallocate),
|
|
JUMP_INIT(read, _IO_default_read),
|
|
JUMP_INIT(write, _IO_default_write),
|
|
JUMP_INIT(seek, _IO_default_seek),
|
|
JUMP_INIT(close, _IO_default_close),
|
|
JUMP_INIT(stat, _IO_default_stat),
|
|
JUMP_INIT(showmanyc, _IO_default_showmanyc),
|
|
JUMP_INIT(imbue, _IO_default_imbue)
|
|
};
|
|
|
|
|
|
int
|
|
___vsprintf_chk (char *s, int flags, size_t slen, const char *format,
|
|
va_list args)
|
|
{
|
|
_IO_strfile f;
|
|
int ret;
|
|
#ifdef _IO_MTSAFE_IO
|
|
f._sbf._f._lock = NULL;
|
|
#endif
|
|
|
|
if (slen == 0)
|
|
__chk_fail ();
|
|
|
|
_IO_no_init (&f._sbf._f, _IO_USER_LOCK, -1, NULL, NULL);
|
|
_IO_JUMPS (&f._sbf) = &_IO_str_chk_jumps;
|
|
s[0] = '\0';
|
|
_IO_str_init_static_internal (&f, s, slen - 1, s);
|
|
|
|
/* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n
|
|
can only come from read-only format strings. */
|
|
if (flags > 0)
|
|
f._sbf._f._flags2 |= _IO_FLAGS2_FORTIFY;
|
|
|
|
ret = _IO_vfprintf (&f._sbf._f, format, args);
|
|
|
|
*f._sbf._f._IO_write_ptr = '\0';
|
|
return ret;
|
|
}
|
|
ldbl_hidden_def (___vsprintf_chk, __vsprintf_chk)
|
|
ldbl_strong_alias (___vsprintf_chk, __vsprintf_chk)
|