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  man pages->Tru64 Unix man pages -> inet6_opt_set_val (3)              



NAME    [Toc]    [Back]

       inet6_opt_set_val  -  Insert data items into the data portion
 of the IPv6 option

SYNOPSIS    [Toc]    [Back]

       #include <netinet/ip6.h>

       int inet6_opt_set_val(
               void *databuf,
               size_t offset,
               void *val,
               int vallen );

LIBRARY    [Toc]    [Back]

       Standard C Library (libc)

PARAMETERS    [Toc]    [Back]

       Points to a buffer that contains an extension header. This
       is  a  pointer  returned  by a call to inet6_opt_append().
       Specifies the location in the data portion of  the  option
       into  which  to  insert the data. You can access the first
       byte after the option type and length  by  specifying  the
       offset  of  0  (zero).  Points to the data to be inserted.
       Specifies  the  length  of  the  data,  in  bytes,  to  be

DESCRIPTION    [Toc]    [Back]

       The  inet6_opt_set_val() function copies data items at the
       location val into a data buffer databuf beginning at  offset.
  In addition, it returns the offset for the next data
       field to assist you in composing content that has multiple

       Make sure that each field is aligned on its natural boundaries.

RETURN VALUES    [Toc]    [Back]

       Upon successful completion, the inet6_opt_set_val()  function
  returns  the  offset  for the next field in the data
       buffer. Upon failure, it returns a -1.

SEE ALSO    [Toc]    [Back]

       Functions:     inet6_opt_append(3),     inet6_opt_find(3),
       inet6_opt_finish(3),                 inet6_opt_get_val(3),
       inet6_opt_init(3), inet6_opt_next(3).

       Network Programmer's Guide

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