int main(int argc, char **argv)
{
log_t* loghandle;
void* libhandle;
int retcode;
struct sigaction sa_quit;
handler_api_t handler_api;
sys_config_t* system_config;
system_config = sys_get_config();
mcp_parse_arguments(argc, argv, system_config);
if(system_config->debug == LOG_NOFLAGS &&
util_file_stat(system_config->pidfile) != 0) {
fprintf(stderr, "%s: PID file %s exists! Not starting.\n", argv[0], system_config->pidfile);
exit(EXIT_FAILURE);
}
libhandle = dlopen(system_config->libfile, RTLD_NOW);
if(!libhandle) {
fprintf(stderr, "%s: Could not load handler library: %s\n", argv[0], dlerror());
exit(EXIT_FAILURE);
}
if(sys_initapi(libhandle, &handler_api) != 0) {
fprintf(stderr, "%s: Specified handler library is invalid", argv[0]);
dlclose(libhandle);
exit(EXIT_FAILURE);
}
loghandle = log_open(system_config->logfile, system_config->debug);
if(!loghandle) {
fprintf(stderr, "%s: Could not open log file: %s\n", argv[0], MCPROXY_LOGFILE);
dlclose(libhandle);
exit(EXIT_FAILURE);
}
log_set_default(loghandle);
if(system_config->debug == LOG_NOFLAGS)
mcp_daemonize();
memset(&sa_quit, 0, sizeof(struct sigaction));
sa_quit.sa_handler = sig_quit;
sigaction(SIGTERM, &sa_quit, NULL);
sigaction(SIGINT, &sa_quit, NULL);
if(system_config->debug == LOG_NOFLAGS)
util_file_writepid(system_config->pidfile);
retcode = core_main(system_config, &handler_api);
log_close(loghandle);
dlclose(libhandle);
if(system_config->debug == LOG_NOFLAGS)
unlink(system_config->pidfile);
exit(retcode);
}
/** Reset a log type for a subsystem to its default value.
* @param[in] from &Client trying to reset the subsystem.
* @param[in] fields Array of parameters to reset.
* @param[in] count Number of fields in \a fields.
* @return -1 to unmark the entry, or zero to leave it alone.
*/
static int
feature_log_reset(struct Client* from, const char* const* fields, int count)
{
struct LogTypes *desc;
char *subsys;
assert(0 != from); /* Never called by the .conf parser */
if (count < 1) { /* reset default facility */
log_set_default(0);
return -1; /* unmark this entry */
} else if (count < 2)
need_more_params(from, "RESET");
else if (!(subsys = log_canon(fields[0]))) /* no such subsystem */
send_reply(from, ERR_BADLOGSYS, fields[0]);
else if ((desc = feature_log_desc(from, fields[1]))) /* reset value */
(*desc->set)(fields[0], 0); /* default should always be accepted */
return 0;
}
/** Set the value of a log output type for a log subsystem.
* @param[in] from &Client trying to set the log type, or NULL.
* @param[in] fields Array of parameters to set.
* @param[in] count Number of parameters in \a fields.
* @return -1 to clear the mark, 0 to leave the mask alone, 1 to set the mask.
*/
static int
feature_log_set(struct Client* from, const char* const* fields, int count)
{
struct LogTypes *desc;
char *subsys;
if (count < 2) { /* set default facility */
if (log_set_default(count < 1 ? 0 : fields[0])) {
assert(count >= 1); /* should always accept default */
if (from) /* send an error */
send_reply(from, ERR_BADLOGVALUE, fields[0]);
else
log_write(LS_CONFIG, L_ERROR, 0,
"Bad value \"%s\" for default facility", fields[0]);
} else
return count < 1 ? -1 : 1; /* tell feature to set or clear mark */
} else if (!(subsys = log_canon(fields[0]))) { /* no such subsystem */
if (from) /* send an error */
send_reply(from, ERR_BADLOGSYS, fields[0]);
else
log_write(LS_CONFIG, L_ERROR, 0,
"No such logging subsystem \"%s\"", fields[0]);
} else if ((desc = feature_log_desc(from, fields[1]))) { /* set value */
if ((*desc->set)(fields[0], count < 3 ? 0 : fields[2])) {
assert(count >= 3); /* should always accept default */
if (from) /* send an error */
send_reply(from, ERR_BADLOGVALUE, fields[2]);
else
log_write(LS_CONFIG, L_ERROR, 0,
"Bad value \"%s\" for log type %s (subsystem %s)",
fields[2], desc->type, subsys);
}
}
return 0;
}