/* cyr_expire.c -- Program to expire deliver.db entries and messages
 *
 * Copyright (c) 1994-2008 Carnegie Mellon University.  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. The name "Carnegie Mellon University" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For permission or any legal
 *    details, please contact
 *      Carnegie Mellon University
 *      Center for Technology Transfer and Enterprise Creation
 *      4615 Forbes Avenue
 *      Suite 302
 *      Pittsburgh, PA  15213
 *      (412) 268-7393, fax: (412) 268-7395
 *      innovation@andrew.cmu.edu
 *
 * 4. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by Computing Services
 *     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
 *
 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * $Id: delivered_prune.c,v 1.4 2008/03/24 17:09:16 murch Exp $
 */

#include <config.h>

#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <syslog.h>
#include <errno.h>
#include <signal.h>

#include "annotate.h"
#include "cyrusdb.h"
#include "duplicate.h"
#include "exitcodes.h"
#include "global.h"
#include "hash.h"
#include "libcyr_cfg.h"
#include "mboxlist.h"
#include "util.h"
#include "xmalloc.h"

/* global state */
const int config_need_data = 0;

void usage(void)
{
    fprintf(stderr,
	    "cyr_expire [-C <altconfig>] -E <days>\n");
    exit(-1);
}

int main(int argc, char *argv[])
{
    extern char *optarg;
    int opt, r = 0, expire_days = 0;
    char *alt_config = NULL;

    if ((geteuid()) == 0 && (become_cyrus() != 0)) {
	fatal("must run as the Cyrus user", EC_USAGE);
    }

    while ((opt = getopt(argc, argv, "C:E:")) != EOF) {
	switch (opt) {
	case 'C': /* alt config file */
	    alt_config = optarg;
	    break;

	case 'E':
	    if (expire_days) usage();
	    expire_days = atoi(optarg);
	    break;

	default:
	    usage();
	    break;
	}
    }

    if (!expire_days) usage();

    cyrus_init(alt_config, "delivered_expire", 0);

    if (duplicate_init(NULL, 0) != 0) {
	fprintf(stderr, 
		"cyr_expire: unable to init duplicate delivery database\n");
	exit(1);
    }

    /* purge deliver.db entries of expired messages */
    r = duplicate_prune(expire_days, NULL);

    duplicate_done();
    cyrus_done();

    exit(r);
}
