/*
 * Copyright (c) 2018 Cesnet z.s.p.o.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the Institute nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include "kadm5_locl.h"

RCSID("$Id$");

kadm5_ret_t
kadm5_s_prune_principal(void *server_handle,
                        krb5_principal princ,
                        int kvno)
{
    kadm5_server_context *context = server_handle;
    hdb_entry_ex ent;
    kadm5_ret_t ret;

    memset(&ent, 0, sizeof(ent));
    if (!context->keep_open) {
        ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
        if(ret)
            return ret;
    }

    ret = kadm5_log_init(context);
    if (ret)
        goto out;

    ret = context->db->hdb_fetch_kvno(context->context, context->db, princ,
                                      HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
    if (ret)
        goto out2;

    ret = hdb_prune_keys_kvno(context->context, &ent.entry, kvno);
    if (ret)
        goto out3;

    ret = hdb_seal_keys(context->context, context->db, &ent.entry);
    if (ret)
        goto out3;

    ret = kadm5_log_modify(context, &ent.entry, KADM5_KEY_DATA);

out3:
    hdb_free_entry(context->context, &ent);
out2:
    (void) kadm5_log_end(context);
out:
    if (!context->keep_open) {
        kadm5_ret_t ret2;
        ret2 = context->db->hdb_close(context->context, context->db);
        if (ret == 0 && ret2 != 0)
            ret = ret2;
    }
    return _kadm5_error_code(ret);
}