/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2022 William Wilgus
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
/* (firmware/common/strmemccpy.c) */
#include "string-extra.h"

/* copies src to a buffer of len bytes stopping after
 * len or the first NULL (\0) in src
 * NULL terminates except when len = 0
 * If len was exceeded NULL is returned otherwise returns
 * a pointer to the first byte following the NULL in dst.
*/
char * strmemccpy(char *dst, const char *src, size_t len)
{
    char * ret = (char *)memccpy(dst, src, '\0', len);
    if (ret == NULL && len > 0)
    {
        dst[len - 1] = '\0';
    }
    return ret;
}