HP-UX Reference (11i v2 04/09) - 3 Library Functions A-M (vol 6)

inet6_opt_init(3N) inet6_opt_init(3N)

extracting option content with multiple ﬁelds.

The ﬁrst parameter databuf should be a pointer returned by

inet6_opt_next()

inet6_opt_find()

containing the data portion of the option.

offset parameter speciﬁes from where in the data portion of the option the value should be extracted.

The ﬁrst byte after the option type and length is accessed by specifying an offset of zero.

val points to the destination for the extracted data.

To use these functions, the application must be compiled with:

-D_HPUX_SOURCE -D_XOPEN_SOURCE_EXTENDED -lxnet -lipv6

These APIs are implemented based on internet-draft Advanced Sockets API for IPv6 <draft-ietf-ipngwg-

2292bis-02.txt>. The APIs may be updated, replaced, or obsoleted based on future changes to the docu-

ment.

RETURN VALUE

inet6_opt_init()

, inet6_opt_append()

, inet6_opt_finish()

, inet6_opt_next()

, and

inet6_opt_find()

return -1 on an error.

EXAMPLES

The Advanced Sockets API for IPv6 <draft-ietf-ipngwg-2292bis-02.txt> document gives a comprehensive

example in Appendix C.

AUTHOR

The APIs were developed by HP.