/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2021-02-23     Meco Man     first version
 */

#include <reent.h>
#include <rtthread.h>

void * _sbrk_r(struct _reent *ptr, ptrdiff_t incr)
{
    /* no use this routine to get memory */
    return RT_NULL;
}

#ifdef RT_USING_HEAP
char *strdup(const char *s)
{
    size_t len = strlen(s) + 1;
    char *tmp = (char *)rt_malloc(len);

    if(!tmp) return NULL;

    rt_memcpy(tmp, s, len);
    return tmp;
}
#endif /*RT_USING_HEAP*/