53 static char		*tackon(char *sys, char *rest);
151 tackon(char *sys, char *rest)  in tackon()  argument
153 	while (*rest == '!')  in tackon()
154 		rest++;  in tackon()
155 	if (!ishost(sys, rest)) {  in tackon()
156 		char *r = (char *)salloc(strlen(sys) + strlen(rest) + 2);  in tackon()
157 		sprintf(r, "%s!%s", sys, rest);  in tackon()
158 		rest = r;  in tackon()
160 	return rest;  in tackon()
167 ishost(char *sys, char *rest)  in ishost()  argument
169 	while (*sys && *sys == *rest)  in ishost()
170 		sys++, rest++;  in ishost()
171 	return(*sys == 0 && *rest == '!');  in ishost()