obuck_fb = b = xmalloc_zero(sizeof(struct fastbuf) + buflen + OBUCK_ALIGN + 4);
b->buflen = buflen;
b->buffer = (char *)(b+1);
obuck_fb = b = xmalloc_zero(sizeof(struct fastbuf) + buflen + OBUCK_ALIGN + 4);
b->buflen = buflen;
b->buffer = (char *)(b+1);