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idna_to_unicode_44i(3)              libidn              idna_to_unicode_44i(3)

NAME
       idna_to_unicode_44i - convert domain name label to Unicode

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 AllowUnas-
       signed 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  cor-
       rect  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>.

COPYRIGHT
       Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Simon Josefsson.
       Permission is granted to make and distribute verbatim  copies  of  this
       manual  provided  the  copyright  notice and this permission notice are
       preserved on all copies.

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.

libidn                                1.8               idna_to_unicode_44i(3)

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