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ptexpire.c
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ptexpire.c
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/*
* Copyright (c) 1998-2003 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 other legal
* details, please contact
* Office of Technology Transfer
* Carnegie Mellon University
* 5000 Forbes Avenue
* Pittsburgh, PA 15213-3890
* (412) 268-4387, fax: (412) 268-7395
* tech-transfer@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.
*
*/
/* This program purges old entries from the database. It holds an exclusive
* lock throughout the process.
*
* NOTE: by adding the alt_file flag, we let exit() handle the cleanup of
* the lock file's fd. That's bad in principal but not in practice. We do
* to make the code easier to read.
*/
#include <config.h>
#include <sys/param.h>
#ifndef MAXPATHLEN
#define MAXPATHLEN MAXPATHNAMELEN
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "auth_pts.h"
#include "cyrusdb.h"
#include "exitcodes.h"
#include "global.h"
#include "libconfig.h"
#include "lock.h"
static char rcsid[] = "$Id: ptexpire.c,v 1.14 2003/10/22 18:50:29 rjs3 Exp $";
/* global */
time_t timenow;
time_t expire_time = (3*60*60); /* 3 Hours */
int config_need_data = 0;
int fatal(char *msg, int exitcode __attribute__((unused)))
{
syslog(LOG_ERR,"%s", msg);
exit(-1);
}
static int expire_p(void *rockp __attribute__((unused)),
const char *key __attribute__((unused)),
int keylen __attribute__((unused)),
const char *data,
int datalen __attribute__((unused)))
{
struct auth_state *authstate = (struct auth_state *)data;
if (authstate->mark + expire_time < timenow) {
return 1;
}
return 0; /* skip this one */
}
static int expire_cb(void *rockp,
const char *key, int keylen,
const char *data __attribute__((unused)),
int datalen __attribute__((unused)))
{
/* We only get called when we want to delete it */
syslog(LOG_DEBUG, "deleteing entry for %s", key);
/* xxx maybe we should use transactions for this */
CONFIG_DB_PTS->delete((struct db *)rockp, key, keylen, NULL, 0);
return 0;
}
int main(int argc, char *argv[])
{
struct db *ptdb;
char fnamebuf[1024];
extern char *optarg;
int opt;
int r;
char *alt_config = NULL;
if (geteuid() == 0) fatal("must run as the Cyrus user", EC_USAGE);
openlog("ptexpire", LOG_PID, SYSLOG_FACILITY);
while ((opt = getopt(argc, argv, "C:E:")) != EOF) {
switch (opt) {
case 'C': /* alt config file */
alt_config = optarg;
break;
case 'E':
expire_time = atoi(optarg);
break;
default:
fprintf(stderr,"usage: [-C filename] [-E time]"
"\n\t-C <filename>\tAlternate Config File"
"\n\t-E <seconds>\tExpiration time"
"\n");
syslog(LOG_ERR, "Invalid command line option");
exit(-1);
break;
/* just pass through */
}
}
cyrus_init(alt_config, "ptexpire");
timenow = time(0);
syslog(LOG_INFO, "Expiring entries older than %d seconds (currently %d)",
expire_time, timenow);
syslog(LOG_DEBUG, "%s", rcsid);
/* open database */
strcpy(fnamebuf, config_dir);
strcat(fnamebuf, PTS_DBFIL);
r = CONFIG_DB_PTS->open(fnamebuf, CYRUSDB_CREATE, &ptdb);
if(r != CYRUSDB_OK) {
syslog(LOG_ERR, "error opening %s (%s)", fnamebuf,
cyrusdb_strerror(r));
exit(1);
}
/* iterate through db, wiping expired entries */
CONFIG_DB_PTS->foreach(ptdb, "", 0, expire_p, expire_cb, ptdb, NULL);
CONFIG_DB_PTS->close(ptdb);
cyrus_done();
syslog(LOG_INFO, "finished");
return 0;
}

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ptexpire.c (4 KB)

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