NAME
idna_to_unicode_44i - convert domain name label to Unicode
SYNOPSIS
#include <idna.h>
I int idna_to_unicode_44i(const uint32_t * in , size_t inlen , uint32_t * out , size_t * outlen , int flags );
ARGUMENTS
"const
input array with unicode code points.
"size_t
length of input array with unicode code points.
"uint32_t
output array with unicode code points.
"size_t
on input, maximum size of output array with unicode code points,
on exit, actual size of output array with unicode code points.
"int
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 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>.
COPYRIGHT
Copyright 2002, 2003, 2004, 2005, 2006, 2007 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.
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