1file:modules/utils/functionsc
2Problem Description：Array Overflow and View Code Label：wsong@grandstreamcn

size_t write_function( void *ptr, size_t size, size_t nmemb, void *stream_ptr)
{
http_res_stream_t *stream = (http_res_stream_t *) stream_ptr;

stream->buf = (char *) pkg_realloc(stream->buf, stream->curr_size + 
        (size * nmemb) + 1);

if (stream->buf == NULL) {
    LM_ERR("cannot allocate memory for stream\n");
    return CURLE_WRITE_ERROR;
}

memcpy(&stream->buf[stream->pos], (char *) ptr, (size * nmemb));

stream->curr_size += ((size * nmemb) + 1);
stream->pos += (size * nmemb);

//begin modify wsong@grandstreamcn
// reason:stream->buf size begin with 0
// stream->buf[stream->pos + 1] = '\0';
stream->buf[stream->pos ] = '\0';
//end modify wsong@grandstreamcn

return size * nmemb;

}

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