/* ccapi/server/ccs_credentials_iterator.c */

/*

 * Copyright 2006, 2007 Massachusetts Institute of Technology.

 * All Rights Reserved.

 *

 * Export of this software from the United States of America may

 * require a specific license from the United States Government.

 * It is the responsibility of any person or organization contemplating

 * export to obtain such a license before exporting.

 *

 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and

 * distribute this software and its documentation for any purpose and

 * without fee is hereby granted, provided that the above copyright

 * notice appear in all copies and that both that copyright notice and

 * this permission notice appear in supporting documentation, and that

 * the name of M.I.T. not be used in advertising or publicity pertaining

 * to distribution of the software without specific, written prior

 * permission.  Furthermore if you modify this software you must label

 * your software as modified software and not distribute it in such a

 * fashion that it might be confused with the original M.I.T. software.

 * M.I.T. makes no representations about the suitability of

 * this software for any purpose.  It is provided "as is" without express

 * or implied warranty.

 */

#include "ccs_common.h"

/* ------------------------------------------------------------------------ */

static cc_int32 ccs_credentials_iterator_release (ccs_credentials_iterator_t io_credentials_iterator,

						  ccs_ccache_t               io_ccache,

						  k5_ipc_stream               in_request_data,

						  k5_ipc_stream               io_reply_data)

{

    cc_int32 err = ccNoError;

    if (!io_credentials_iterator) { err = cci_check_error (ccErrBadParam); }

    if (!io_ccache              ) { err = cci_check_error (ccErrBadParam); }

    if (!in_request_data        ) { err = cci_check_error (ccErrBadParam); }

    if (!io_reply_data          ) { err = cci_check_error (ccErrBadParam); }

    if (!err) {

        err = ccs_credentials_list_iterator_release (io_credentials_iterator);

    }

    return cci_check_error (err);

}

/* ------------------------------------------------------------------------ */

static cc_int32 ccs_credentials_iterator_next (ccs_credentials_iterator_t io_credentials_iterator,

					       ccs_ccache_t               io_ccache,

					       k5_ipc_stream               in_request_data,

					       k5_ipc_stream               io_reply_data)

{

    cc_int32 err = ccNoError;

    ccs_credentials_t credentials = NULL;

    if (!io_credentials_iterator) { err = cci_check_error (ccErrBadParam); }

    if (!io_ccache              ) { err = cci_check_error (ccErrBadParam); }

    if (!in_request_data        ) { err = cci_check_error (ccErrBadParam); }

    if (!io_reply_data          ) { err = cci_check_error (ccErrBadParam); }

    if (!err) {

        err = ccs_credentials_list_iterator_next (io_credentials_iterator,

                                                  &credentials);

    }

    if (!err) {

        err = ccs_credentials_write (credentials, io_reply_data);

    }

    return cci_check_error (err);

}

/* ------------------------------------------------------------------------ */

static  cc_int32 ccs_credentials_iterator_clone (ccs_credentials_iterator_t io_credentials_iterator,

                                                 ccs_ccache_t               io_ccache,

                                                 k5_ipc_stream               in_request_data,

                                                 k5_ipc_stream               io_reply_data)

{

    cc_int32 err = ccNoError;

    ccs_credentials_iterator_t credentials_iterator = NULL;

    if (!io_credentials_iterator) { err = cci_check_error (ccErrBadParam); }

    if (!io_ccache              ) { err = cci_check_error (ccErrBadParam); }

    if (!in_request_data        ) { err = cci_check_error (ccErrBadParam); }

    if (!io_reply_data          ) { err = cci_check_error (ccErrBadParam); }

    if (!err) {

        err = ccs_credentials_list_iterator_clone (io_credentials_iterator,

                                                   &credentials_iterator);

    }

    if (!err) {

        err = ccs_credentials_list_iterator_write (credentials_iterator,

                                                   io_reply_data);

    }

    return cci_check_error (err);

}

#ifdef TARGET_OS_MAC

#pragma mark -

#endif

/* ------------------------------------------------------------------------ */

 cc_int32 ccs_credentials_iterator_handle_message (ccs_credentials_iterator_t  io_credentials_iterator,

                                                   ccs_ccache_t                io_ccache,

                                                   enum cci_msg_id_t           in_request_name,

                                                   k5_ipc_stream                in_request_data,

                                                   k5_ipc_stream               *out_reply_data)

{

    cc_int32 err = ccNoError;

    k5_ipc_stream reply_data = NULL;

    if (!in_request_data) { err = cci_check_error (ccErrBadParam); }

    if (!out_reply_data ) { err = cci_check_error (ccErrBadParam); }

    if (!err) {

        err = krb5int_ipc_stream_new (&reply_data);

    }

    if (!err) {

        if (in_request_name == cci_credentials_iterator_release_msg_id) {

            err = ccs_credentials_iterator_release (io_credentials_iterator,

                                                    io_ccache,

                                                    in_request_data,

                                                    reply_data);

        } else if (in_request_name == cci_credentials_iterator_next_msg_id) {

            err = ccs_credentials_iterator_next (io_credentials_iterator,

                                                 io_ccache,

                                                 in_request_data,

                                                 reply_data);

        } else if (in_request_name == cci_credentials_iterator_clone_msg_id) {

            err = ccs_credentials_iterator_clone (io_credentials_iterator,

                                                  io_ccache,

                                                  in_request_data,

                                                  reply_data);

        } else {

            err = ccErrBadInternalMessage;

        }

    }

    if (!err) {

        *out_reply_data = reply_data;

        reply_data = NULL; /* take ownership */

    }

    krb5int_ipc_stream_release (reply_data);

    return cci_check_error (err);

}