int idna_to_ascii_4z(const uint32_t * input, char ** output, int flags);
ARGUMENTS
const uint32_t * input
zero terminated input Unicode string.
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 UCS-4 domain name to ASCII string. The domain name may
contain several labels, separated by dots. The output buffer must
be deallocated by the caller.
