/*
- * This function reads the citadel.config file. It should be called at
- * the beginning of EVERY Citadel program.
+ * Read and write the citadel.config file
+ *
+ * Copyright (c) 1987-2012 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * 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.
*/
#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;
-char bbs_home_directory[PATH_MAX];
-int home_specified = 0;
+/*
+ * 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( home_specified ? bbs_home_directory : BBSDIR ) != 0) {
- fprintf(stderr, "Cannot start.\nThere is no Citadel installation in %s\n%s\n",
- (home_specified ? bbs_home_directory : BBSDIR),
- strerror(errno));
- exit(errno);
- }
- cfp=fopen("citadel.config","r");
- if (cfp==NULL) {
- fprintf(stderr, "Cannot start.\n");
- fprintf(stderr, "There is no citadel.config in %s\n%s\n",
- (home_specified ? bbs_home_directory : BBSDIR),
+ 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(errno);
- }
- fread((char *)&config,sizeof(struct config),1,cfp);
+ 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);
- if ( (config.c_setup_level / 10) != (REV_LEVEL/10) ) {
- fprintf(stderr, "config: Your data files are out of date. ");
- fprintf(stderr, "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(1);
- }
+
+ /* 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
+
+ /* 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);
+ if (rv == -1)
+ syslog(LOG_EMERG, "Failed to write: %s [%s]\n",
+ file_citadel_config, strerror(errno));
+ fclose(cfp);
}
+}
projects / citadel.git / blobdiff