NAME

       idn2_register_ul - API function

SYNOPSIS

       #include <idn2.h>

       int idn2_register_ul(const char * ulabel, const char * alabel, char ** insertname, int flags);

ARGUMENTS

       const char * ulabel
                   input zero-terminated locale encoded string, or NULL.

       const char * alabel
                   input zero-terminated ACE encoded string (xn--), or NULL.

       char ** insertname
                   newly allocated output variable with name to register in DNS.

       int flags   optional idn2_flags to modify behaviour.

DESCRIPTION

       Perform  IDNA2008 register string conversion on domain label ulabel and alabel, as described in section 4
       of RFC 5891.  Note that the input ulabel is assumed to be encoded in the locale's default coding  system,
       and will be transcoded to UTF-8 and NFC normalized by this function.

       It  is  recommended to supply both ulabel and alabel for better error checking, but supplying just one of
       them will work.  Passing in only alabel is better than only ulabel.  See RFC  5891  section  4  for  more
       information.

RETURNS

       On  successful conversion IDN2_OK is returned, when the given ulabel and alabel does not match each other
       IDN2_UALABEL_MISMATCH is returned, when either of the input labels are  too  long  IDN2_TOO_BIG_LABEL  is
       returned,  when  alabel  does  does not appear to be a proper A-label IDN2_INVALID_ALABEL is returned, or
       another error code is returned.

SEE ALSO

       The full documentation for libidn2 is maintained as a Texinfo manual.  If the info and  libidn2  programs
       are properly installed at your site, the command

              info libidn2

       should give you access to the complete manual.

libidn2                                               0.10                                   idn2_register_ul(3)