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/*
* $Id: config.c 8246 2010-01-17 23:12:55Z ajc $
*
* Read and write the citadel.config file
*
* Copyright (c) 1987-2009 by the citadel.org team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "sysdep.h"
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <limits.h>
#include <libcitadel.h>
#include "citadel.h"
#include "server.h"
#include "config.h"
#include "ctdl_module.h"
struct config config;
/*
* get_config() is called during the initialization of any program which
* directly accesses Citadel data files. It verifies the system's integrity
* and reads citadel.config into memory.
*/
void get_config(void) {
FILE *cfp;
struct stat st;
int rv;
if (chdir(ctdl_bbsbase_dir) != 0) {
fprintf(stderr,
"This program could not be started.\n"
"Unable to change directory to %s\n"
"Error: %s\n",
ctdl_bbsbase_dir,
strerror(errno));
exit(CTDLEXIT_HOME);
}
cfp = fopen(file_citadel_config, "rb");
if (cfp == NULL) {
fprintf(stderr, "This program could not be started.\n"
"Unable to open %s\n"
"Error: %s\n",
file_citadel_config,
strerror(errno));
exit(CTDLEXIT_CONFIG);
}
memset(&config, 0, sizeof(struct config));
rv = fread((char *) &config, sizeof(struct config), 1, cfp);
if (rv != 1)
{
fprintf(stderr,
"Warning: The config file %s has unexpected size. \n",
file_citadel_config);
}
if (fstat(fileno(cfp), &st)) {
perror(file_citadel_config);
exit(CTDLEXIT_CONFIG);
}
#ifndef __CYGWIN__
if (st.st_uid != CTDLUID) {
fprintf(stderr, "%s must be owned by uid="F_UID_T" but "F_UID_T" owns it!\n",
file_citadel_config, CTDLUID, st.st_uid);
exit(CTDLEXIT_CONFIG);
}
int desired_mode = (S_IFREG | S_IRUSR | S_IWUSR) ;
if (st.st_mode != desired_mode) {
fprintf(stderr, "%s must be set to permissions mode %03o but they are %03o\n",
file_citadel_config, (desired_mode & 0xFFF), (st.st_mode & 0xFFF));
exit(CTDLEXIT_CONFIG);
}
#endif
fclose(cfp);
/* Ensure that we are linked to the correct version of libcitadel */
if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
fprintf(stderr, " You are running libcitadel version %d.%02d\n",
(libcitadel_version_number() / 100), (libcitadel_version_number() % 100));
fprintf(stderr, "citserver was compiled against version %d.%02d\n",
(LIBCITADEL_VERSION_NUMBER / 100), (LIBCITADEL_VERSION_NUMBER % 100));
exit(CTDLEXIT_LIBCITADEL);
}
/* Only allow LDAP auth mode if we actually have LDAP support */
#ifndef HAVE_LDAP
if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
fprintf(stderr, "Your system is configured for LDAP authentication,\n"
"but you are running a server built without OpenLDAP support.\n");
exit(CTDL_EXIT_UNSUP_AUTH);
}
#endif
/* Check to see whether 'setup' must first be run to update data file formats */
if (config.c_setup_level < REV_MIN) {
fprintf(stderr, "Your data files are out of date. Run setup to update them.\n");
fprintf(stderr, " This program requires level %d.%02d\n",
(REV_LEVEL / 100), (REV_LEVEL % 100));
fprintf(stderr, " Data files are currently at %d.%02d\n",
(config.c_setup_level / 100),
(config.c_setup_level % 100));
exit(CTDLEXIT_OOD);
}
/* Default maximum message length is 10 megabytes. This is site
* configurable. Also check to make sure the limit has not been
* set below 8192 bytes.
*/
if (config.c_maxmsglen <= 0)
config.c_maxmsglen = 10485760;
if (config.c_maxmsglen < 8192)
config.c_maxmsglen = 8192;
/* Default lower and upper limits on number of worker threads */
if (config.c_min_workers < 3) /* no less than 3 */
config.c_min_workers = 5;
if (config.c_max_workers == 0) /* default maximum */
config.c_max_workers = 256;
if (config.c_max_workers < config.c_min_workers) /* max >= min */
config.c_max_workers = config.c_min_workers;
/* Networking more than once every five minutes just isn't sane */
if (config.c_net_freq == 0L)
config.c_net_freq = 3600L; /* once per hour default */
if (config.c_net_freq < 300L)
config.c_net_freq = 300L;
/* Same goes for POP3 */
if (config.c_pop3_fetch == 0L)
config.c_pop3_fetch = 3600L; /* once per hour default */
if (config.c_pop3_fetch < 300L)
config.c_pop3_fetch = 300L;
if (config.c_pop3_fastest == 0L)
config.c_pop3_fastest = 3600L; /* once per hour default */
if (config.c_pop3_fastest < 300L)
config.c_pop3_fastest = 300L;
/* "create new user" only works with native authentication mode */
if (config.c_auth_mode != AUTHMODE_NATIVE) {
config.c_disable_newu = 1;
}
}
/*
* Occasionally, we will need to write the config file, because some operations
* change site-wide parameters.
*/
void put_config(void)
{
FILE *cfp;
int rv;
if ((cfp = fopen(file_citadel_config, "rb+")) == NULL)
perror(file_citadel_config);
else {
rv = fwrite((char *) &config, sizeof(struct config), 1, cfp);
fclose(cfp);
}
}
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