question on KRB5_PRIVATE

[Dan Million]

Jeffrey Altman wrote:
> You have not specified what software package you are attempting
> to build, but if it utilizes private api calls or the internals
> of private data structures, then you must define KRB5_PRIVATE.
> The reason these data structures or APIs are considered private
> is that they are likely to change in future releases.
> 
> Jeffrey Altman

I'm trying to build HPSS, a mass storage system from IBM.  I didn't 
mention it because it isn't exactly widely known.

But anyway...what I found curious was that the Linux krb5.h gives you 
the option of defining krb5_rcache if you set KRB5_PRIVATE.  My AIX 
krb5.h doesn't give you the option at all; it just defines it as a 
pointer to an empty struct.

Dan

> 
> Dan Million wrote:
> 
>> I'm trying to build a software package which uses KRB5 calls, and a 
>> certain C source file includes krb5.h.  The compiler complains about 
>> the use of a krb5_rcache struct.
>>
>> When I look in my krb5.h (MIT Kerberos V 1.3.1 on AIX) I see this:
>>
>>     /*
>>      * begin "rcache.h"
>>      */
>>
>>     struct krb5_rc_st;
>>     typedef struct krb5_rc_st *krb5_rcache;
>>
>> When I look on a RedHat Linux system with version 1.2.7 installed,
>> I see something different:
>>
>>     /*
>>      * begin "rcache.h"
>>      */
>>
>>     #if KRB5_PRIVATE
>>     typedef struct krb5_rc_st {
>>         krb5_magic magic;
>>         struct _krb5_rc_ops FAR *ops;
>>         krb5_pointer data;
>>     } FAR *krb5_rcache;
>>     #else
>>     struct krb5_rc_st;
>>     typedef struct krb5_rc_st FAR *krb5_rcache;
>>     #endif
>>
>> So...what's the deal with the KRB5_PRIVATE stuff?  Do I need to 
>> rebuild my entire KRB5 for AIX with KRB5_PRIVATE set to 1 in order to 
>> get this struct defined correctly in krb5.h?
>>
>> Thanks.
>>
>> Dan
>>
>