HP-UX IPv6 Porting Guide (September 2004)

Table Of Contents

Testing for Scope and Type of IPv6 addresses using Macros

Chapter 1150

address is a multicast address of the speciﬁed scope, or return false if the address is either not

a multicast address or not of the speciﬁed scope.

NOTE IN6_IS_ADDR_LINKLOCAL and IN6_IS_ADDR_SITELOCAL return true only for

the link-local scope or site-local scope IPv6 unicast addresses. These two

macros do not return true for IPv6 multicast addresses of either link-local scope

or site-local scope.

int IN6_IS_ADDR_UNSPECIFIED (const struct in6_addr *);

int IN6_IS_ADDR_LOOPBACK (const struct in6_addr *);

int IN6_IS_ADDR_MULTICAST (const struct in6_addr *);

int IN6_IS_ADDR_LINKLOCAL (const struct in6_addr *);

int IN6_IS_ADDR_SITELOCAL (const struct in6_addr *);

int IN6_IS_ADDR_V4MAPPED (const struct in6_addr *);

int IN6_IS_ADDR_V4COMPAT (const struct in6_addr *);

These macros test the scope of IPv6multicast addresses:

int IN6_IS_ADDR_MC_NODELOCAL(const struct in6_addr *);

int IN6_IS_ADDR_MC_LINKLOCAL(const struct in6_addr *);

int IN6_IS_ADDR_MC_SITELOCAL(const struct in6_addr *);

int IN6_IS_ADDR_MC_ORGLOCAL (const struct in6_addr *);

int IN6_IS_ADDR_MC_GLOBAL (const struct in6_addr *);