NAME

       idna_to_unicode_44i - API function

SYNOPSIS

       #include <idna.h>

       int  idna_to_unicode_44i(const  uint32_t  *  in,  size_t  inlen,  uint32_t * out, size_t *
       outlen, int flags);

ARGUMENTS

       const uint32_t * in
                   input array with unicode code points.

       size_t inlen
                   length of input array with unicode code points.

       uint32_t * out
                   output array with unicode code points.

       size_t * outlen
                   on input, maximum size of output array with  unicode  code  points,  on  exit,
                   actual size of output array with unicode code points.

       int flags   an Idna_flags value, e.g., IDNA_ALLOW_UNASSIGNED or IDNA_USE_STD3_ASCII_RULES.

DESCRIPTION

       The  ToUnicode  operation  takes a sequence of Unicode code points that make up one domain
       label and returns a sequence of Unicode code points. If the input sequence is a  label  in
       ACE  form,  then  the  result  is an equivalent internationalized label that is not in ACE
       form, otherwise the original sequence is returned unaltered.

       ToUnicode never fails. If any step fails, then the original  input  sequence  is  returned
       immediately in that step.

       The  Punycode  decoder can never output more code points than it inputs, but Nameprep can,
       and therefore ToUnicode can.  Note that  the  number  of  octets  needed  to  represent  a
       sequence of code points depends on the particular character encoding used.

       The  inputs  to ToUnicode are a sequence of code points, the AllowUnassigned flag, and the
       UseSTD3ASCIIRules flag. The output of ToUnicode is  always  a  sequence  of  Unicode  code
       points.

       Return  value:  Returns  Idna_rc  error  condition, but it must only be used for debugging
       purposes.  The output buffer is always guaranteed to contain the correct data according to
       the  specification (sans malloc induced errors).  NB!  This means that you normally ignore
       the return code from this function, as checking it means breaking the standard.

REPORTING BUGS

       Report bugs to <bug-libidn@gnu.org>.
       General guidelines for reporting bugs: http://www.gnu.org/gethelp/
       GNU Libidn home page: http://www.gnu.org/software/libidn/

COPYRIGHT

       Copyright © 2002-2013 Simon Josefsson.
       Copying and distribution of this file, with or without modification, are permitted in  any
       medium without royalty provided the copyright notice and this notice are preserved.

SEE ALSO

       The  full  documentation  for  libidn  is maintained as a Texinfo manual.  If the info and
       libidn programs are properly installed at your site, the command

              info libidn

       should give you access to the complete manual.  As  an  alternative  you  may  obtain  the
       manual from:

              http://www.gnu.org/software/libidn/manual/