Retrieves an address for an index from an IPv6 routing header.
    Format
      #include  <in6.h>
      struct in6_addr *inet6_rth_getaddr  ( const void *bp, int index
                                          );

1  –  Arguments

 bp
    Points to a buffer that contains an IPv6 routing header.
 index
    Specifies a value that identifies a position in a routing header
    for a specific address. Valid values range from 0 to the return
    value from inet6_rth_segments() minus 1.

2  –  Description

    This function uses a specified index value and retrieves a
    pointer to an address in a routing header specified by bp. Call
    inet6_rth_segments() before calling this function in order to
    determine the number of segments (addresses) in the routing
    header.

3  –  Return Values

    x                  Upon successful completion, the inet6_rth_
                       getaddr() function returns a pointer to an
                       address.
    NULL pointer       Failure