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inet6_option_init()

Initialize an ancillary data object that contains IPv6 hop-by-hop and destination options

Synopsis:

#include <netinet/in.h>

int inet6_option_init(void *bp, 
                      struct cmsghdr **cmsgp, 
                      int type);

bp: A pointer to previously allocated space that contains the ancillary data object. It must be large enough to contain all the individual options to be added by later calls to inet6_option_append() and inet6_option_alloc().
cmsgp: A pointer to a cmsghdr structure. The *cmsgp variable is initialized by this function to point to the cmsghdr structure that this function constructs in the buffer pointed to by bp.
type: The type of option which must be either IPV6_HOPOPTS or IPV6_DSTOPTS. This type is stored in the cmsg_type member of the cmsghdr structure pointed to by *cmsgp.

libsocket

Use the -l socket option to qcc to link against this library.

Call inet6_option_init() function once per ancillary data object that contains either hop-by-hop or destination options.