int idna_to_ascii_lz(const char * input, char ** output, int flags);
ARGUMENTS
const char * input
zero terminated input string encoded in the current locale's
character set.
char ** output
pointer to newly allocated output string.
int flags
an Idna_flags value, e.g., IDNA_ALLOW_UNASSIGNED or
IDNA_USE_STD3_ASCII_RULES.
DESCRIPTION
Convert domain name in the locale's encoding to ASCII string. The
domain name may contain several labels, separated by dots. The
output buffer must be deallocated by the caller.