dns_gethostbyname_addrtype() - syntax, references, call tree, description

hostname

the hostname that is to be queried

addr

pointer to a ip_addr_t where to store the address if it is already cached in the dns_table (only valid if ERR_OK is returned!)

found

a callback function to be called on success, failure or timeout (only if ERR_INPROGRESS is returned!)

callback_arg

argument to pass to the callback function

dns_addrtype

- LWIP_DNS_ADDRTYPE_IPV4_IPV6: try to resolve IPv4 first, try IPv6 if IPv4 fails only - LWIP_DNS_ADDRTYPE_IPV6_IPV4: try to resolve IPv6 first, try IPv4 if IPv6 fails only - LWIP_DNS_ADDRTYPE_IPV4: try to resolve IPv4 only - LWIP_DNS_ADDRTYPE_IPV6: try to resolve IPv6 only

References

Location	Referrer	Text
dns.c:1547		dns_gethostbyname_addrtype(const char hostname, ip_addr_t addr, dns_found_callback found,
dns.h:111		err_t dns_gethostbyname_addrtype(const char hostname, ip_addr_t addr,
api_msg.c:2153	lwip_netconn_do_gethostbyname()	API_EXPR_DEREF(msg->err) = dns_gethostbyname_addrtype(msg->name,
dns.c:1529	dns_gethostbyname()	return dns_gethostbyname_addrtype(hostname, addr, found, callback_arg, LWIP_DNS_ADDRTYPE_DEFAULT);