/* Copyright (C) 1994-2018 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 (FILE *fp, int c) __THROW;

static int

_IO_str_chk_overflow (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 libio_vtable =

{

  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)