krb5_init_context_profile
return krb5_init_context_profile(NULL, my_zero, context);
return krb5_init_context_profile(NULL, KRB5_INIT_CONTEXT_SECURE, context);
return krb5_init_context_profile(NULL, KRB5_INIT_CONTEXT_KDC, context);
check(krb5_init_context_profile(p, 0, &ctx));