/* Copyright (C) 1991-2018 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 <string.h>

#undef strncpy

#ifndef STRNCPY

 #define STRNCPY strncpy

#endif

char *

STRNCPY (char *s1, const char *s2, size_t n)

{

  size_t size = __strnlen (s2, n);

  if (size != n)

    memset (s1 + size, '\0', n - size);

  return memcpy (s1, s2, size);

}

libc_hidden_builtin_def (strncpy)