db_upgrade.c

/*-
 * See the file LICENSE for redistribution information.
 *
 * Copyright (c) 1996-2005
 *      Sleepycat Software.  All rights reserved.
 *
 * $Id: db_upgrade.c,v 12.5 2005/09/09 12:38:36 bostic Exp $
 */

#include "db_config.h"

#ifndef lint
static const char copyright[] =
    "Copyright (c) 1996-2005\nSleepycat Software Inc.  All rights reserved.\n";
#endif

#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#endif

#include "db_int.h"

int main __P((int, char *[]));
int usage __P((void));
int version_check __P((void));

const char *progname;

int
main(argc, argv)
        int argc;
        char *argv[];
{
        extern char *optarg;
        extern int optind;
        DB *dbp;
        DB_ENV *dbenv;
        u_int32_t flags;
        int ch, exitval, nflag, ret, t_ret, verbose;
        char *home, *passwd;

        if ((progname = strrchr(argv[0], '/')) == NULL)
                progname = argv[0];
        else
                ++progname;

        if ((ret = version_check()) != 0)
                return (ret);

        dbenv = NULL;
        flags = nflag = verbose = 0;
        exitval = 0;
        home = passwd = NULL;
        while ((ch = getopt(argc, argv, "h:NP:sVv")) != EOF)
                switch (ch) {
                case 'h':
                        home = optarg;
                        break;
                case 'N':
                        nflag = 1;
                        break;
                case 'P':
                        passwd = strdup(optarg);
                        memset(optarg, 0, strlen(optarg));
                        if (passwd == NULL) {
                                fprintf(stderr, "%s: strdup: %s\n",
                                    progname, strerror(errno));
                                return (EXIT_FAILURE);
                        }
                        break;
                case 's':
                        LF_SET(DB_DUPSORT);
                        break;
                case 'V':
                        printf("%s\n", db_version(NULL, NULL, NULL));
                        return (EXIT_SUCCESS);
                case 'v':
                        verbose = 1;
                        break;
                case '?':
                default:
                        return (usage());
                }
        argc -= optind;
        argv += optind;

        if (argc <= 0)
                return (usage());

        /* Handle possible interruptions. */
        __db_util_siginit();

        /*
         * Create an environment object and initialize it for error
         * reporting.
         */
        if ((ret = db_env_create(&dbenv, 0)) != 0) {
                fprintf(stderr, "%s: db_env_create: %s\n",
                    progname, db_strerror(ret));
                goto shutdown;
        }

        dbenv->set_errfile(dbenv, stderr);
        dbenv->set_errpfx(dbenv, progname);

        if (nflag) {
                if ((ret = dbenv->set_flags(dbenv, DB_NOLOCKING, 1)) != 0) {
                        dbenv->err(dbenv, ret, "set_flags: DB_NOLOCKING");
                        goto shutdown;
                }
                if ((ret = dbenv->set_flags(dbenv, DB_NOPANIC, 1)) != 0) {
                        dbenv->err(dbenv, ret, "set_flags: DB_NOPANIC");
                        goto shutdown;
                }
        }

        if (passwd != NULL && (ret = dbenv->set_encrypt(dbenv,
            passwd, DB_ENCRYPT_AES)) != 0) {
                dbenv->err(dbenv, ret, "set_passwd");
                goto shutdown;
        }

        /*
         * If attaching to a pre-existing environment fails, create a
         * private one and try again.
         */
        if ((ret = dbenv->open(dbenv, home, DB_USE_ENVIRON, 0)) != 0 &&
            (ret == DB_VERSION_MISMATCH ||
            (ret = dbenv->open(dbenv, home,
            DB_CREATE | DB_INIT_MPOOL | DB_PRIVATE | DB_USE_ENVIRON,
            0)) != 0)) {
                dbenv->err(dbenv, ret, "DB_ENV->open");
                goto shutdown;
        }

        for (; !__db_util_interrupted() && argv[0] != NULL; ++argv) {
                if ((ret = db_create(&dbp, dbenv, 0)) != 0) {
                        fprintf(stderr,
                            "%s: db_create: %s\n", progname, db_strerror(ret));
                        goto shutdown;
                }
                dbp->set_errfile(dbp, stderr);
                dbp->set_errpfx(dbp, progname);
                if ((ret = dbp->upgrade(dbp, argv[0], flags)) != 0)
                        dbp->err(dbp, ret, "DB->upgrade: %s", argv[0]);
                if ((t_ret = dbp->close(dbp, 0)) != 0 && ret == 0) {
                        dbenv->err(dbenv, ret, "DB->close: %s", argv[0]);
                        ret = t_ret;
                }
                if (ret != 0)
                        goto shutdown;
                /*
                 * People get concerned if they don't see a success message.
                 * If verbose is set, give them one.
                 */
                if (verbose)
                        printf("%s: %s upgraded successfully\n",
                            progname, argv[0]);
        }

        if (0) {
shutdown:       exitval = 1;
        }
        if (dbenv != NULL && (ret = dbenv->close(dbenv, 0)) != 0) {
                exitval = 1;
                fprintf(stderr,
                    "%s: dbenv->close: %s\n", progname, db_strerror(ret));
        }

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

        /* Resend any caught signal. */
        __db_util_sigresend();

        return (exitval == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
}

int
usage()
{
        fprintf(stderr, "usage: %s %s\n", progname,
            "[-NsVv] [-h home] [-P password] db_file ...");
        return (EXIT_FAILURE);
}

int
version_check()
{
        int v_major, v_minor, v_patch;

        /* Make sure we're loaded with the right version of the DB library. */
        (void)db_version(&v_major, &v_minor, &v_patch);
        if (v_major != DB_VERSION_MAJOR || v_minor != DB_VERSION_MINOR) {
                fprintf(stderr,
        "%s: version %d.%d doesn't match library version %d.%d\n",
                    progname, DB_VERSION_MAJOR, DB_VERSION_MINOR,
                    v_major, v_minor);
                return (EXIT_FAILURE);
        }
        return (0);
}

---