Is there a reverse function for strstr

Question

I am trying to find a similar function to strstr that searches a substring starting from the end towards the beginning of the string.

Answer 1

char* strrstr(char * _Str, const char * _SubStr)
{
    const BYTE EQUAL=0;
    int i=0, src_len = strlen(_Str), find_len = strlen(_SubStr),
        tail_count=0;

    for(i=src_len; i>-1; i--)
    {
        if(_Str[i] == _SubStr[0] && tail_count >= find_len)
        {
            if(strncmp(&_Str[i], _SubStr, find_len) == EQUAL)
            {
                return &_Str[i];
            }
        }
        tail_count++;
    }
    return NULL;    
}