idna_to_unicode_44i(3) libidn idna_to_unicode_44i(3)
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 <help-libidn@gnu.org>.
General guidelines for reporting bugs: https://www.gnu.org/gethelp/
GNU Libidn home page: https://www.gnu.org/software/libidn/
COPYRIGHT
Copyright (C) 2002-2024 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:
https://www.gnu.org/software/libidn/manual/libidn 1.42 idna_to_unicode_44i(3)
