rockbox/firmware/common/strmemccpy.c

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/***************************************************************************
* __________ __ ___.
* 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;
}