Load an /etc/hosts-style file from 'hosts_fname' into 'base'.
If hosts_fname is NULL, add minimal entries for localhost, and nothing else.
Note that only evdns_getaddrinfo uses the /etc/hosts entries.
Return 0 on success, negative on failure.
See Implementation
Load an /etc/hosts-style file from 'hosts_fname' into 'base'.
If hosts_fname is NULL, add minimal entries for localhost, and nothing else.
Note that only evdns_getaddrinfo uses the /etc/hosts entries.
Return 0 on success, negative on failure.