4 * This function reads the citadel.config file. It should be called at
5 * the beginning of EVERY Citadel program.
19 #include "serv_extensions.h"
23 char ctdl_home_directory[PATH_MAX] = CTDLDIR;
24 int home_specified = 0;
27 * get_config() is called during the initialization of any program which
28 * directly accesses Citadel data files. It verifies the system's integrity
29 * and reads citadel.config into memory.
31 void get_config(void) {
35 if (chdir(home_specified ? ctdl_home_directory : CTDLDIR) != 0) {
37 "This program could not be started.\n"
38 "Unable to change directory to %s\n"
40 (home_specified ? ctdl_home_directory : CTDLDIR),
50 "/citadel.config", "rb");
52 fprintf(stderr, "This program could not be started.\n"
53 "Unable to open %s/citadel.config\n"
55 (home_specified ? ctdl_home_directory : CTDLDIR),
59 fread((char *) &config, sizeof(struct config), 1, cfp);
60 if (fstat(fileno(cfp), &st)) {
61 perror("citadel.config");
65 if (st.st_uid != CTDLUID || st.st_mode != (S_IFREG | S_IRUSR | S_IWUSR)) {
66 fprintf(stderr, "check the permissions on citadel.config\n");
72 if (config.c_setup_level < REV_MIN) {
73 fprintf(stderr, "config: Your data files are out of date. ");
74 fprintf(stderr, "Run setup to update them.\n");
76 " This program requires level %d.%02d\n",
77 (REV_LEVEL / 100), (REV_LEVEL % 100));
79 " Data files are currently at %d.%02d\n",
80 (config.c_setup_level / 100),
81 (config.c_setup_level % 100));
85 /* Default maximum message length is 10 megabytes. This is site
86 * configurable. Also check to make sure the limit has not been
87 * set below 8192 bytes.
89 if (config.c_maxmsglen <= 0)
90 config.c_maxmsglen = 10485760;
91 if (config.c_maxmsglen < 8192)
92 config.c_maxmsglen = 8192;
94 /* Default lower and upper limits on number of worker threads */
96 if (config.c_min_workers < 3) /* no less than 3 */
97 config.c_min_workers = 5;
99 if (config.c_max_workers == 0) /* default maximum */
100 config.c_max_workers = 256;
102 if (config.c_max_workers < config.c_min_workers) /* max >= min */
103 config.c_max_workers = config.c_min_workers;
105 /* Networking more than once every five minutes just isn't sane */
106 if (config.c_net_freq == 0L)
107 config.c_net_freq = 3600L; /* once per hour default */
108 if (config.c_net_freq < 300L)
109 config.c_net_freq = 300L;
114 * Occasionally, we will need to write the config file, because some operations
115 * change site-wide parameters.
117 void put_config(void)
127 "/citadel.config", "rb+")) == NULL)
128 perror("citadel.config");
130 fwrite((char *) &config, sizeof(struct config), 1, cfp);