79  * for the host with name name.
80  * Due to dns_gethostbyname limitations, only one address is returned.
84  *         for the host with name name
99   /* query host IP address */  in lwip_gethostbyname()
132 …LWIP_DEBUGF(DNS_DEBUG, ("hostent.h_addr_list[%i]-> == %s\n", idx, ipaddr_ntoa((ip_addr_t *)s_hoste…  in lwip_gethostbyname()
138   /* this function should return the "per-thread" hostent after copy from s_hostent */  in lwip_gethostbyname()
146  * Thread-safe variant of lwip_gethostbyname: instead of using a static
151  * @param ret pre-allocated struct where to store the result
152  * @param buf pre-allocated buffer where to store additional data
158  * @return 0 on success, non-zero on error, additional error information
159  *         is stored in *h_errnop instead of h_errno to be thread-safe
179     return -1;  in lwip_gethostbyname_r()
186     return -1;  in lwip_gethostbyname_r()
193     return -1;  in lwip_gethostbyname_r()
199   /* query host IP address */  in lwip_gethostbyname_r()
200   err = netconn_gethostbyname(name, &h->addr);  in lwip_gethostbyname_r()
204     return -1;  in lwip_gethostbyname_r()
212   h->addr_list[0] = &h->addr;  in lwip_gethostbyname_r()
213   h->addr_list[1] = NULL;  in lwip_gethostbyname_r()
214   h->aliases = NULL;  in lwip_gethostbyname_r()
215   ret->h_name = hostname;  in lwip_gethostbyname_r()
216   ret->h_aliases = &h->aliases;  in lwip_gethostbyname_r()
217   ret->h_addrtype = AF_INET;  in lwip_gethostbyname_r()
218   ret->h_length = sizeof(ip_addr_t);  in lwip_gethostbyname_r()
219   ret->h_addr_list = (char **)&h->addr_list;  in lwip_gethostbyname_r()
241     next = ai->ai_next;  in lwip_freeaddrinfo()
248  * Translates the name of a service location (for example, a host name) and/or
255  * Due to a limitation in dns_gethostbyname, only the first address of a
256  * host is returned.
257  * Also, service names are not supported (only port numbers)!
259  * @param nodename descriptive name or address string of the host
260  *                 (may be NULL -> local address)
264  * @return 0 on success, non-zero on failure
290     ai_family = hints->ai_family;  in lwip_getaddrinfo()
307      * @todo?: currently, only ASCII integers (port numbers) are supported (AI_NUMERICSERV)! */  in lwip_getaddrinfo()
316     if ((hints != NULL) && (hints->ai_flags & AI_NUMERICHOST)) {  in lwip_getaddrinfo()
344     if ((hints != NULL) && (hints->ai_flags & AI_PASSIVE)) {  in lwip_getaddrinfo()
361   /* If this fails, please report to lwip-devel! :-) */  in lwip_getaddrinfo()
375     inet6_addr_from_ip6addr(&sa6->sin6_addr, ip_2_ip6(&addr));  in lwip_getaddrinfo()
376     sa6->sin6_family = AF_INET6;  in lwip_getaddrinfo()
377     sa6->sin6_len = sizeof(struct sockaddr_in6);  in lwip_getaddrinfo()
378     sa6->sin6_port = lwip_htons((u16_t)port_nr);  in lwip_getaddrinfo()
379     sa6->sin6_scope_id = ip6_addr_zone(ip_2_ip6(&addr));  in lwip_getaddrinfo()
380     ai->ai_family = AF_INET6;  in lwip_getaddrinfo()
386     inet_addr_from_ip4addr(&sa4->sin_addr, ip_2_ip4(&addr));  in lwip_getaddrinfo()
387     sa4->sin_family = AF_INET;  in lwip_getaddrinfo()
388     sa4->sin_len = sizeof(struct sockaddr_in);  in lwip_getaddrinfo()
389     sa4->sin_port = lwip_htons((u16_t)port_nr);  in lwip_getaddrinfo()
390     ai->ai_family = AF_INET;  in lwip_getaddrinfo()
397     ai->ai_socktype = hints->ai_socktype;  in lwip_getaddrinfo()
398     ai->ai_protocol = hints->ai_protocol;  in lwip_getaddrinfo()
402     ai->ai_canonname = ((char *)ai + sizeof(struct addrinfo) + sizeof(struct sockaddr_storage));  in lwip_getaddrinfo()
403     MEMCPY(ai->ai_canonname, nodename, namelen);  in lwip_getaddrinfo()
404     ai->ai_canonname[namelen] = 0;  in lwip_getaddrinfo()
406   ai->ai_addrlen = sizeof(struct sockaddr_storage);  in lwip_getaddrinfo()
407   ai->ai_addr = (struct sockaddr *)sa;  in lwip_getaddrinfo()