NAME

       dns_ip4_qualify - qualify name and look up IPv4 addresses

SYNTAX

       #include <dns.h>

       int dns_ip4_qualify(stralloc* out,stralloc* fqdn,
                           const stralloc* udn);

DESCRIPTION

       dns_ip4_qualify  feeds the name udn through qualification and looks up 4-byte IP addresses
       for the result. It puts the fully qualified domain name into fqdn, puts the  concatenation
       of  the  IP addresses into out, and returns 0. If the domain does not exist in DNS, or has
       no IP addresses, out will be empty.

       If dns_ip4_qualify has trouble with the qualification, has trouble with DNS, or  runs  out
       of  memory,  it  returns -1, setting errno appropriately. It may or may not change out and
       fqdn.

QUALIFICATION

       See http://cr.yp.to/djbdns/qualification.html

SEE ALSO

       dns_ip4(3), dns_ip4_packet(3), dns_ip6_qualify(3)

                                                                               dns_ip4_qualify(3)