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dns_ip6_qualify(3)	   Library Functions Manual	    dns_ip6_qualify(3)

NAME
       dns_ip6_qualify - qualify name and look up IPv6 addresses

SYNTAX
       #include	<dns.h>

       int dns_ip6_qualify(stralloc* out,stralloc* fqdn,
			   const stralloc* udn);

DESCRIPTION
       dns_ip6_qualify	feeds  the name	udn through qualification and looks up
       16-byte IPv6 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.

       dns_ip6_qualify	also  looks up 4-byte IPv4 addresses and converts them
       into IPv4-mapped	IPv6 addresses (::ffff:1.2.3.4)	to provide easy	 back-
       wards compatibility for IPv6 applications.

       If dns_ip6_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_ip6(3), dns_ip6_packet(3), dns_ip4_qualify(3)

							    dns_ip6_qualify(3)

NAME | SYNTAX | DESCRIPTION | QUALIFICATION | SEE ALSO

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