The getaddrinfo(3) and gethostbyname(3) are used to return the address for a given hostname. The getnameinfo(3) and gethostbyaddr(3) are used to return hostname for a given address. Right now in casper, we have two limitations: - NAME which allows resolving DNS names. - ADDR which allows to do revert DNS lookups. Before this change the rights was mixed up: NAME - getnameinfo(3) and gethostbyname(3) ADDR - gethostbyaddr(3) and getaddrinfo(3) Which no matters on limitation allowed us to resolve DNS names and do DNS lookups basically by using a different set of functions. Now the NAME type allows getaddrinfo(3) and gethostbyname (3)functions, and the ADDR names allow to use gethostbyaddr(3) and getnameinfo(3) functions. Reviewed by: pjd, bcr MFC after: 3 weeks Discussed with: hrs Differential Revision: https://reviews.freebsd.org/D16930
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