/* Copyright (C) 2001-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2001

   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 <errno.h>

#include <string.h>

#include <unistd.h>

#include <sysdep.h>

#include <sys/syscall.h>

int

__gethostname (char *name, size_t len)

{

  int result;

  result = INLINE_SYSCALL (gethostname, 2, name, len);

  if (result == 0

      /* See whether the string is terminated.  If not we will return

	 an error.  */

      && memchr (name, '\0', len) == NULL)

    {

      __set_errno (EOVERFLOW);

      result = -1;

    }

  return result;

}

weak_alias (__gethostname, gethostname)