Parameter values returned to the application

ERRNO

A fullword binary field. If the RETCODE value is negative, the field contains an error number. See Socket call error return codes for information about ERRNO return codes.

RETCODE

A fullword binary field that returns one of the following values:

Value: Description
0: FALSE
The call was successful and the result is FALSE. The input AF_INET6 address corresponds to an IP address on the node, but does not conform to one or more IPV6_ADDR_PREFERENCES flags that are specified in the call.
1: TRUE
The call was successful and the result is TRUE. The input AF_INET6 address corresponds to an IP address on the node and conforms to all IPV6_ADDR_PREFERENCES flags that are specified in the call.
-1: Check ERRNO for an error code.