RFE: prompt_types, as with MIT krb5 1.2.x

[Nicolas Williams <Nicolas.Williams@ubsw.com>]

MIT krb5 v1.2.1 introduced prompt types, hints to the prompter functions
about the nature of the current prompts.

These are very useful and I'm already using these in a development
version of Frank Cusack's PAM_KRB5.

Recently it's been brought to my attention that Heimdal lacks this
feature.

Could this feature be added to Heimdal?

The prompt_types interface consists of krb5_get_prompt_types() and
several prompt type constants for use by prompter functions and
krb5int_set_prompt_types(), a private interface for use by the
krb5_get_init_creds*() functions and friends (e.g., preauth functions).

See below for the prototypes and defines from MIT krb5.

Thanks,

Nico


**** From MIT 1.2.x's krb5.h (public interface):

/*
 * Prompter enhancements
 */

#define KRB5_PROMPT_TYPE_PASSWORD            0x1
#define KRB5_PROMPT_TYPE_NEW_PASSWORD        0x2
#define KRB5_PROMPT_TYPE_NEW_PASSWORD_AGAIN  0x3
#define KRB5_PROMPT_TYPE_PREAUTH             0x4

typedef krb5_int32 krb5_prompt_type;

KRB5_DLLIMP krb5_prompt_type* KRB5_CALLCONV krb5_get_prompt_types
	KRB5_PROTOTYPE((krb5_context context));


**** From MIT 1.2.x's k5-int.h (private interface):

struct _krb5_context {
...
	krb5_prompt_type *prompt_types;
...
};

void krb5int_set_prompt_types
	KRB5_PROTOTYPE((krb5_context, krb5_prompt_type *));
--