int idn2_lookup_ul(const char * src, char ** lookupname, int flags);
- const char * src
- input zero-terminated locale encoded string.
- char ** lookupname
- newly allocated output variable with name to lookup in DNS.
- int flags
- optional idn2_flags to modify behaviour.
DESCRIPTIONPerform IDNA2008 lookup string conversion on domain name src, as described in section 5 of RFC 5891. Note that the input 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.
Pass IDN2_ALABEL_ROUNDTRIP in flags to convert any input A-labels to U-labels and perform additional testing.