Is it a bug of mem_ctrl in bss_mem.c ?

[John Zhou]

Hi Guys,
When BIO_reset the read-only memory,  does the below code assume that:
the bm's init state is bm->length == bm->max ??
if not , the below code will cause the bm->data point to the wrong address.


case BIO_CTRL_RESET:
if (bm->data != NULL)
 {
/* For read only case reset to the start again */
if(b->flags & BIO_FLAGS_MEM_RDONLY)
 {
bm->data -= bm->max - bm->length;
bm->length = bm->max;
 }
else
{
 memset(bm->data,0,bm->max);
bm->length=0;
}
 }

Thanks,
Qiang.