[thirdparty/glibc.git] / debug / wcpncpy_chk.c

/* Copyright (C) 1995-2023 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
   <https://www.gnu.org/licenses/>.  */

#include <wchar.h>


/* Copy no more than N wide-characters of SRC to DEST.	*/
wchar_t *
__wcpncpy_chk (wchar_t *dest, const wchar_t *src, size_t n, size_t destlen)
{
  if (__glibc_unlikely (destlen < n))
    __chk_fail ();

  /* This function is not often enough used to justify not using a
     tail call.  */
  return __wcpncpy (dest, src, n);
}
Commit	Line	Data
6d7e8eda	1	/* Copyright (C) 1995-2023 Free Software Foundation, Inc.
8215c9ec	2	This file is part of the GNU C Library.
8215c9ec UD	3
	4	The GNU C Library is free software; you can redistribute it and/or
	5	modify it under the terms of the GNU Lesser General Public
	6	License as published by the Free Software Foundation; either
	7	version 2.1 of the License, or (at your option) any later version.
	8
	9	The GNU C Library is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	Lesser General Public License for more details.
	13
	14	You should have received a copy of the GNU Lesser General Public
59ba27a6	15	License along with the GNU C Library; if not, see
5a82c748	16	<https://www.gnu.org/licenses/>. */
8215c9ec UD	17
	18	#include <wchar.h>
	19
	20
	21	/* Copy no more than N wide-characters of SRC to DEST. */
	22	wchar_t *
	23	__wcpncpy_chk (wchar_t dest, const wchar_t src, size_t n, size_t destlen)
	24	{
a1ffb40e	25	if (__glibc_unlikely (destlen < n))
8215c9ec UD	26	__chk_fail ();
	27
	28	/* This function is not often enough used to justify not using a
	29	tail call. */
	30	return __wcpncpy (dest, src, n);
	31	}