ADDRESS *rfc822_append (ADDRESS ** a, ADDRESS * b);
void rfc822_write_address (char *, size_t, ADDRESS *, int);
void rfc822_write_address_single (char *, size_t, ADDRESS *, int);
ADDRESS *rfc822_append (ADDRESS ** a, ADDRESS * b);
void rfc822_write_address (char *, size_t, ADDRESS *, int);
void rfc822_write_address_single (char *, size_t, ADDRESS *, int);