/*
 * 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 (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#include <sys/types.h>

#include <errno.h>
#include <fcntl.h>
#include <libintl.h>
#include <libscf.h>
#include <libuutil.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>

#include "manifest_find.h"
#include "manifest_hash.h"

#define MAX_DEPTH       24

/*
 * mfstscan - service manifest change detection utility
 *
 * mfstscan walks the given filesystem hierarchies, and reports those manifests
 * with changed or absent hash entries.  Manifests are expected to end with a
 * .xml suffix--other files will be ignored.
 */

static void
usage()
{
        (void) fprintf(stderr, gettext("Usage: %s [-t] path ...\n"),
            uu_getpname());
        exit(UU_EXIT_USAGE);
}

int
main(int argc, char *argv[])
{
        manifest_info_t **entry;
        manifest_info_t **manifests;
        scf_handle_t *hndl = NULL;
        int i;
        int paths_walked = 0;
        struct stat sb;
        int status;
        int tflag = 0;

        (void) uu_setpname(argv[0]);

        while ((i = getopt(argc, argv, "t")) != -1) {
                switch (i) {
                case 't':
                        tflag = 1;
                        paths_walked = 1;
                        break;
                case '?':
                default:
                        usage();
                        /*NOTREACHED*/
                }
        }

        if (optind >= argc)
                usage();

        if ((hndl = scf_handle_create(SCF_VERSION)) == NULL)
                uu_die(gettext("Unexpected libscf error: %s.  Exiting.\n"),
                    scf_strerror(scf_error()));

        if (scf_handle_bind(hndl) != SCF_SUCCESS)
                uu_die(gettext("Couldn't bind to svc.configd.\n"));

        for (i = optind; i < argc; i++) {
                if (tflag) {
                        char *pname = mhash_filename_to_propname(argv[i],
                            B_FALSE);

                        if (pname != NULL)
                                (void) puts(pname);
                        else
                                uu_warn(gettext("cannot resolve pathname "
                                    "for %s"), argv[i]);

                        continue;
                }

                if (stat(argv[i], &sb) == -1) {
                        uu_warn(gettext("cannot stat %s"), argv[i]);
                        continue;
                }

                status = find_manifests(hndl, argv[i], &manifests,
                    CHECKHASH|CHECKEXT);
                if (status < 0) {
                        uu_warn(gettext("file tree walk of %s encountered "
                            "error.  %s\n"), argv[i], strerror(errno));
                } else {
                        paths_walked++;
                        if (manifests != NULL) {
                                for (entry = manifests;
                                    *entry != NULL;
                                    entry++) {
                                        (void) printf("%s\n",
                                            (*entry)->mi_path);
                                }
                                free_manifest_array(manifests);
                        }
                }

        }

        if (!paths_walked)
                uu_die(gettext("no paths walked\n"));

        if (hndl != NULL) {
                (void) scf_handle_unbind(hndl);
                (void) scf_handle_destroy(hndl);
        }

        return (0);
}