The inet6_is_srcaddr() call tests whether the input IP address matches an IP address in the node that conforms to all IPV6_ADDR_PREFERENCES flags specified in the call. You can use this call with IPv6 addresses or with IPv4-mapped IPv6 addresses.

You can use this call to test local IP addresses to verify that these addresses have the characteristics required by your application.

Tip: See RFC 5014 IPv6 Socket API for Source Address Selection for more information about the inet6_is_srcaddr() call. See Related protocol specifications for information about accessing RFCs.