/* GNU Mailutils -- a suite of utilities for electronic mail
   Copyright (C) 1999-2003, 2005-2007, 2009-2012, 2014-2017 Free
   Software Foundation, Inc.

   This 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 3 of the License, or (at your option) any later version.

   This 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 this library.  If not, see 
   <http://www.gnu.org/licenses/>. */

#if HAVE_CONFIG_H
# include <config.h>
#endif

#include <string.h>
#include <mailutils/util.h>

/* Smart strncpy that always add the null and returns the number of bytes
   written.  */
size_t
mu_cpystr (char *dst, const char *src, size_t size)
{
  size_t len = src ? strlen (src) : 0 ;
  if (dst == NULL || size == 0)
    return len;
  if (len >= size)
    len = size - 1;
  memcpy (dst, src, len);
  dst[len] = '\0';
  return len;
}