common/irs/getaddrinfo.c

227 	/* external reference: pai, error, and label free */ \
228 	(ai) = get_ai(pai, (afd), (addr)); \
245 	/* external reference: pai, error and label free */ \
246 	error = get_canonname(pai, (ai), (str)); \
329 	struct addrinfo *pai;
334 	pai = &ai;
335 	pai->ai_flags = 0;
336 	pai->ai_family = PF_UNSPEC;
337 	pai->ai_socktype = ANY;
338 	pai->ai_protocol = ANY;
346 	pai->_ai_pad = 0;
348 	pai->ai_addrlen = 0;
349 	pai->ai_canonname = NULL;
350 	pai->ai_addr = NULL;
351 	pai->ai_next = NULL;
370 		memcpy(pai, hints, sizeof(*pai));
377 		pai->_ai_pad = 0;
383 		if (pai->ai_socktype != ANY && pai->ai_protocol != ANY) {
385 				if (pai->ai_family != ex->e_af)
391 				if (pai->ai_socktype == ex->e_socktype &&
392 				    pai->ai_protocol != ex->e_protocol) {
404 	switch (pai->ai_flags & (AI_ALL | AI_V4MAPPED)) {
407 		if (pai->ai_family != AF_INET6)
408 			pai->ai_flags &= ~(AI_ALL | AI_V4MAPPED);
415 		pai->ai_flags &= ~(AI_ALL | AI_V4MAPPED);
425 	if (MATCH_FAMILY(pai->ai_family, PF_INET, 1)
427 	 || MATCH_FAMILY(pai->ai_family, PF_INET6, 1)
430 		ai0 = *pai;	/* backup *pai */
432 		if (pai->ai_family == PF_UNSPEC) {
434 			pai->ai_family = PF_INET6;
436 			pai->ai_family = PF_INET;
439 		error = get_portmatch(pai, servname);
443 		*pai = ai0;
446 	ai0 = *pai;
450 		*pai = ai0;
452 		if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex)))
454 		if (!MATCH(pai->ai_socktype, ex->e_socktype, WILD_SOCKTYPE(ex)))
456 		if (!MATCH(pai->ai_protocol, ex->e_protocol, WILD_PROTOCOL(ex)))
459 		if (pai->ai_family == PF_UNSPEC)
460 			pai->ai_family = ex->e_af;
461 		if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
462 			pai->ai_socktype = ex->e_socktype;
463 		if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
464 			pai->ai_protocol = ex->e_protocol;
469 		if (get_portmatch(pai, servname) != 0)
477 			if (!addrconfig(pai->ai_family))
479 			error = explore_null(pai, servname, &cur->ai_next);
481 			error = explore_numeric_scope(pai, hostname, servname,
499 	if (pai->ai_flags & AI_NUMERICHOST)
516 	*pai = ai0;
517 	error = explore_fqdn(pai, hostname, servname, &afai);
533 		*pai = ai0;
535 		if (pai->ai_family == PF_UNSPEC)
536 			pai->ai_family = ex->e_af;
538 		if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex)))
540 		if (!MATCH(pai->ai_socktype, ex->e_socktype,
544 		if (!MATCH(pai->ai_protocol, ex->e_protocol,
554 		if ((pai->ai_flags & AI_ADDRCONFIG) != 0 &&
555 		    !addrconfig(pai->ai_family))
559 		if (pai->ai_family == PF_UNSPEC)
560 			pai->ai_family = ex->e_af;
561 		if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
562 			pai->ai_socktype = ex->e_socktype;
563 		if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
564 			pai->ai_protocol = ex->e_protocol;
569 		if (get_portmatch(pai, servname) != 0)
572 		if ((error = explore_copy(pai, afai, &cur->ai_next)) != 0) {
608 explore_fqdn(pai, hostname, servname, res)
609 	const struct addrinfo *pai;
627 	if (get_portmatch(pai, servname) != 0)
646 	result = (*ho->addrinfo)(ho, hostname, pai);
691 explore_copy(pai, src0, res)
692 	const struct addrinfo *pai;	/*%< seed */
705 		if (src->ai_family != pai->ai_family)
714 		cur->ai_next->ai_socktype = pai->ai_socktype;
715 		cur->ai_next->ai_protocol = pai->ai_protocol;
733 explore_null(pai, servname, res)
734 	const struct addrinfo *pai;
747 	afd = find_afd(pai->ai_family);
751 	if (pai->ai_flags & AI_PASSIVE) {
779 explore_numeric(pai, hostname, servname, res)
780 	const struct addrinfo *pai;
795 	afd = find_afd(pai->ai_family);
803 			if (pai->ai_family == afd->a_af ||
804 			    pai->ai_family == PF_UNSPEC /*?*/) {
816 			if (pai->ai_family == afd->a_af ||
817 			    pai->ai_family == PF_UNSPEC /*?*/) {
842 explore_numeric_scope(pai, hostname, servname, res)
843 	const struct addrinfo *pai;
849 	return explore_numeric(pai, hostname, servname, res);
857 	afd = find_afd(pai->ai_family);
862 		return explore_numeric(pai, hostname, servname, res);
866 		return explore_numeric(pai, hostname, servname, res);
879 	error = explore_numeric(pai, addr, servname, res);
904 get_canonname(pai, ai, str)
905 	const struct addrinfo *pai;
909 	if ((pai->ai_flags & AI_CANONNAME) != 0) {
919 get_ai(pai, afd, addr)
920 	const struct addrinfo *pai;
932 	memcpy(ai, pai, sizeof(struct addrinfo));
947 copy_ai(pai)
948 	const struct addrinfo *pai;
953 	l = sizeof(*ai) + pai->ai_addrlen;
957 	memcpy(ai, pai, sizeof(*ai));
959 	memcpy(ai->ai_addr, pai->ai_addr, pai->ai_addrlen);
961 	if (pai->ai_canonname) {
962 		l = strlen(pai->ai_canonname) + 1;
967 		strcpy(ai->ai_canonname, pai->ai_canonname);	/* (checked) */
1157 hostent2addrinfo(hp, pai)
1159 	const struct addrinfo *pai;
1167 	if (pai->ai_family != AF_UNSPEC && af != pai->ai_family)
1196 		if ((pai->ai_flags & AI_CANONNAME) != 0) {
1219 addr2addrinfo(pai, cp)
1220 	const struct addrinfo *pai;
1225 	afd = find_afd(pai->ai_family);
1229 	return(get_ai(pai, afd, cp));