#include <lib9.h> /* *  make an address, add the defaults */char *netmkaddr(char *linear, char *defnet, char *defsrv){	static char addr[4*(NAMELEN+1)];	char *cp; 	/*	 *  dump network name	 */	cp = strchr(linear, '!');	if(cp == 0){		if(defnet==0){			if(defsrv)				sprint(addr, "net!%.*s!%.*s", 2*NAMELEN, linear,					NAMELEN, defsrv);			else				sprint(addr, "net!%.*s", 2*NAMELEN, linear);		} else {			if(defsrv)				sprint(addr, "%.*s!%.*s!%.*s", NAMELEN, defnet,					2*NAMELEN, linear, NAMELEN, defsrv);			else				sprint(addr, "%.*s!%.*s", NAMELEN, defnet,					2*NAMELEN, linear);		}		return addr;	} 	/*	 *  if there is already a service, use it	 */	cp = strchr(cp+1, '!');	if(cp)		return linear; 	/*	 *  add default service	 */	if(defsrv == 0)		return linear;	sprint(addr, "%.*s!%.*s", 3*NAMELEN, linear,		NAMELEN, defsrv); 	return addr;}