/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 *
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <stdio.h>
#include <strings.h>
#include <ctype.h>
#include <libgen.h>
#include <libintl.h>
#include <errno.h>
#include <kmfapiP.h>
#include "util.h"

int
kc_delete(int argc, char *argv[])
{
        int             rv = KC_OK;
        KMF_RETURN      kmfrv = KMF_OK;
        int             opt;
        extern int      optind_av;
        extern char     *optarg_av;
        char            *filename = NULL;
        char            *policyname = NULL;

        while ((opt = getopt_av(argc, argv, "i:(dbfile)p:(policy)")) != EOF) {
                switch (opt) {
                        case 'i':
                                filename = get_string(optarg_av, &rv);
                                if (filename == NULL) {
                                        (void) fprintf(stderr,
                                            gettext("Error dbfile input.\n"));
                                }
                                break;
                        case 'p':
                                policyname = get_string(optarg_av, &rv);
                                if (policyname == NULL) {
                                        (void) fprintf(stderr,
                                            gettext("Error policy name.\n"));
                                }
                                break;
                        default:
                                (void) fprintf(stderr,
                                    gettext("Error input option.\n"));
                                rv = KC_ERR_USAGE;
                                break;

                }

                if (rv != KC_OK)
                        goto out;
        }

        /* No additional args allowed. */
        argc -= optind_av;
        if (argc) {
                (void) fprintf(stderr,
                    gettext("Error input option\n"));
                rv = KC_ERR_USAGE;
                goto out;
        }

        if (filename == NULL) {
                filename = strdup(KMF_DEFAULT_POLICY_FILE);
                if (filename == NULL) {
                        rv = KC_ERR_MEMORY;
                        goto out;
                }
        }

        /*
         * Must have a policy name. The policy name can not be default
         * if using the default policy file.
         */
        if (policyname == NULL) {
                (void) fprintf(stderr,
                    gettext("You must specify a policy name\n"));
                rv = KC_ERR_USAGE;
                goto out;
        } else if (strcmp(filename, KMF_DEFAULT_POLICY_FILE) == 0 &&
            strcmp(policyname, KMF_DEFAULT_POLICY_NAME) == 0) {
                (void) fprintf(stderr,
                    gettext("Can not delete the default policy in the default "
                    "policy file\n"));
                rv = KC_ERR_USAGE;
                goto out;
        }

        /* Check the access permission of the policy DB */
        if (access(filename, W_OK) < 0) {
                int err = errno;
                (void) fprintf(stderr,
                    gettext("Cannot access \"%s\" for delete - %s\n"),
                    filename, strerror(err));
                rv = KC_ERR_ACCESS;
                goto out;
        }

        kmfrv = kmf_delete_policy_from_db(policyname, filename);
        if (kmfrv != KMF_OK)
                rv = KC_ERR_DELETE_POLICY;

out:
        if (filename != NULL)
                free(filename);

        if (policyname != NULL)
                free(policyname);

        return (rv);
}