char buf[80];
char buf[256];
static int dump_children(int fd, struct virtual *v){	int l;	char buf[80];	while (v) {		l = sprintf(buf, "VHB %s %lu %lu\n", v->fullname, v->nrequests, v->nwritten);		if (write(fd, buf, l) == -1) {			lerror("write");			return -1;		}		v = v->next;	}	return 0;}