Get IP address for DNS name.
This function will synchronously try to resolve a DNS A or AAAA record by contacting the DNS server specified in the global variable sock_dns_server.
By supplying AF_INET, AF_INET6 or AF_UNSPEC in
family requesting of A records (IPv4), AAAA records (IPv6) or both can be selected.
This function will return the first DNS record it receives. IF both A and AAAA are requested, AAAA will be preferred.
addr_out needs to provide space for any possible result! (4byte when family==AF_INET, 16byte otherwise)
|[in]||domain_name||DNS name to resolve into address |
|[out]||addr_out||buffer to write result into |
|[in]||family||Either AF_INET, AF_INET6 or AF_UNSPEC|
- the size of the resolved address on success
< 0 otherwise