#include <krb5/krb5.h>krb5_error_code
krb5_check_transited(krb5_context context, krb5_const_realm client_realm, krb5_const_realm server_realm, krb5_realm *realms, int num_realms, int *bad_realm);
krb5_error_code
krb5_check_transited_realms(krb5_context context, const char *const *realms, int num_realms, int *bad_realm);
krb5_error_code
krb5_domain_x500_decode(krb5_context context, krb5_data tr, char ***realms, int *num_realms, const char *client_realm, const char *server_realm);
krb5_error_code
krb5_domain_x500_encode(char **realms, int num_realms, krb5_data *encoding);