2 * Read and write the citadel.config file
4 * Copyright (c) 1987-2012 by the citadel.org team
6 * This program is open source software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 3.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
23 #include <libcitadel.h>
29 #include "ctdl_module.h"
35 * get_config() is called during the initialization of any program which
36 * directly accesses Citadel data files. It verifies the system's integrity
37 * and reads citadel.config into memory.
39 void get_config(void) {
44 if (chdir(ctdl_bbsbase_dir) != 0) {
46 "This program could not be started.\n"
47 "Unable to change directory to %s\n"
53 cfp = fopen(file_citadel_config, "rb");
55 fprintf(stderr, "This program could not be started.\n"
60 exit(CTDLEXIT_CONFIG);
62 memset(&config, 0, sizeof(struct config));
63 rv = fread((char *) &config, sizeof(struct config), 1, cfp);
67 "Warning: The config file %s has unexpected size. \n",
70 if (fstat(fileno(cfp), &st)) {
71 perror(file_citadel_config);
72 exit(CTDLEXIT_CONFIG);
76 if (st.st_uid != CTDLUID) {
77 fprintf(stderr, "%s must be owned by uid="F_UID_T" but "F_UID_T" owns it!\n",
78 file_citadel_config, CTDLUID, st.st_uid);
79 exit(CTDLEXIT_CONFIG);
81 int desired_mode = (S_IFREG | S_IRUSR | S_IWUSR) ;
82 if (st.st_mode != desired_mode) {
83 fprintf(stderr, "%s must be set to permissions mode %03o but they are %03o\n",
84 file_citadel_config, (desired_mode & 0xFFF), (st.st_mode & 0xFFF));
85 exit(CTDLEXIT_CONFIG);
91 /* Ensure that we are linked to the correct version of libcitadel */
92 if (libcitadel_version_number() < LIBCITADEL_VERSION_NUMBER) {
93 fprintf(stderr, " You are running libcitadel version %d.%02d\n",
94 (libcitadel_version_number() / 100), (libcitadel_version_number() % 100));
95 fprintf(stderr, "citserver was compiled against version %d.%02d\n",
96 (LIBCITADEL_VERSION_NUMBER / 100), (LIBCITADEL_VERSION_NUMBER % 100));
97 exit(CTDLEXIT_LIBCITADEL);
100 /* Only allow LDAP auth mode if we actually have LDAP support */
102 if ((config.c_auth_mode == AUTHMODE_LDAP) || (config.c_auth_mode == AUTHMODE_LDAP_AD)) {
103 fprintf(stderr, "Your system is configured for LDAP authentication,\n"
104 "but you are running a server built without OpenLDAP support.\n");
105 exit(CTDL_EXIT_UNSUP_AUTH);
109 /* Default maximum message length is 10 megabytes. This is site
110 * configurable. Also check to make sure the limit has not been
111 * set below 8192 bytes.
113 if (config.c_maxmsglen <= 0)
114 config.c_maxmsglen = 10485760;
115 if (config.c_maxmsglen < 8192)
116 config.c_maxmsglen = 8192;
118 /* Default lower and upper limits on number of worker threads */
120 if (config.c_min_workers < 3) /* no less than 3 */
121 config.c_min_workers = 5;
123 if (config.c_max_workers == 0) /* default maximum */
124 config.c_max_workers = 256;
126 if (config.c_max_workers < config.c_min_workers) /* max >= min */
127 config.c_max_workers = config.c_min_workers;
129 /* Networking more than once every five minutes just isn't sane */
130 if (config.c_net_freq == 0L)
131 config.c_net_freq = 3600L; /* once per hour default */
132 if (config.c_net_freq < 300L)
133 config.c_net_freq = 300L;
135 /* Same goes for POP3 */
136 if (config.c_pop3_fetch == 0L)
137 config.c_pop3_fetch = 3600L; /* once per hour default */
138 if (config.c_pop3_fetch < 300L)
139 config.c_pop3_fetch = 300L;
140 if (config.c_pop3_fastest == 0L)
141 config.c_pop3_fastest = 3600L; /* once per hour default */
142 if (config.c_pop3_fastest < 300L)
143 config.c_pop3_fastest = 300L;
145 /* "create new user" only works with native authentication mode */
146 if (config.c_auth_mode != AUTHMODE_NATIVE) {
147 config.c_disable_newu = 1;
153 * Occasionally, we will need to write the config file, because some operations
154 * change site-wide parameters.
156 void put_config(void)
161 if ((cfp = fopen(file_citadel_config, "rb+")) == NULL)
162 perror(file_citadel_config);
164 rv = fwrite((char *) &config, sizeof(struct config), 1, cfp);
166 syslog(LOG_EMERG, "Failed to write: %s [%s]\n",
167 file_citadel_config, strerror(errno));