4 * This function reads the citadel.config file. It should be called at
5 * the beginning of EVERY Citadel program.
23 #include "serv_extensions.h"
27 char ctdl_home_directory[PATH_MAX] = CTDLDIR;
28 int home_specified = 0;
31 * get_config() is called during the initialization of any program which
32 * directly accesses Citadel data files. It verifies the system's integrity
33 * and reads citadel.config into memory.
35 void get_config(void) {
39 if (chdir(home_specified ? ctdl_home_directory : CTDLDIR) != 0) {
41 "This program could not be started.\n"
42 "Unable to change directory to %s\n"
44 (home_specified ? ctdl_home_directory : CTDLDIR),
54 "/citadel.config", "rb");
56 fprintf(stderr, "This program could not be started.\n"
57 "Unable to open %s/citadel.config\n"
59 (home_specified ? ctdl_home_directory : CTDLDIR),
63 fread((char *) &config, sizeof(struct config), 1, cfp);
64 if (fstat(fileno(cfp), &st)) {
65 perror("citadel.config");
69 if (st.st_uid != CTDLUID || st.st_mode != (S_IFREG | S_IRUSR | S_IWUSR)) {
70 fprintf(stderr, "check the permissions on citadel.config\n");
76 if (config.c_setup_level < REV_MIN) {
77 fprintf(stderr, "config: Your data files are out of date. ");
78 fprintf(stderr, "Run setup to update them.\n");
80 " This program requires level %d.%02d\n",
81 (REV_LEVEL / 100), (REV_LEVEL % 100));
83 " Data files are currently at %d.%02d\n",
84 (config.c_setup_level / 100),
85 (config.c_setup_level % 100));
89 /* Default maximum message length is 10 megabytes. This is site
90 * configurable. Also check to make sure the limit has not been
91 * set below 8192 bytes.
93 if (config.c_maxmsglen <= 0)
94 config.c_maxmsglen = 10485760;
95 if (config.c_maxmsglen < 8192)
96 config.c_maxmsglen = 8192;
98 /* Default lower and upper limits on number of worker threads */
100 if (config.c_min_workers < 3) /* no less than 3 */
101 config.c_min_workers = 5;
103 if (config.c_max_workers == 0) /* default maximum */
104 config.c_max_workers = 256;
106 if (config.c_max_workers < config.c_min_workers) /* max >= min */
107 config.c_max_workers = config.c_min_workers;
109 /* Networking more than once every five minutes just isn't sane */
110 if (config.c_net_freq == 0L)
111 config.c_net_freq = 3600L; /* once per hour default */
112 if (config.c_net_freq < 300L)
113 config.c_net_freq = 300L;
118 * Occasionally, we will need to write the config file, because some operations
119 * change site-wide parameters.
121 void put_config(void)
131 "/citadel.config", "rb+")) == NULL)
132 perror("citadel.config");
134 fwrite((char *) &config, sizeof(struct config), 1, cfp);