static const char *test_libconfig_setting_types(void)
{
struct config_t config;
struct config_setting_t *t;
const char *input = "/* Test File */\n"
"Setting_Int: 1;\n"
"Setting_Int64: 1L;\n"
"Setting_Float: 1.0;\n"
"Setting_Bool: true;\n"
"Setting_String: \"1\";\n"
"Setting_Array: [ ];\n"
"Setting_Group: { };\n"
"Setting_List: ( );\n"
"/* End test file */\n";
if (libconfig->read_string(&config, input) == CONFIG_FALSE) {
libconfig->destroy(&config);
return "Unable to parse configuration.";
}
if (config_setting_type(config.root) != CONFIG_TYPE_GROUP) {
libconfig->destroy(&config);
return "CONFIG_TYPE_GROUP failed.";
}
if ((t = libconfig->lookup(&config, "Setting_Int")) == NULL || config_setting_type(t) != CONFIG_TYPE_INT
|| config_setting_is_group(t) || config_setting_is_array(t) || config_setting_is_list(t)
|| config_setting_is_aggregate(t) || !config_setting_is_scalar(t) || !config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_INT failed.";
}
if ((t = libconfig->lookup(&config, "Setting_Int64")) == NULL || config_setting_type(t) != CONFIG_TYPE_INT64
|| config_setting_is_group(t) || config_setting_is_array(t) || config_setting_is_list(t)
|| config_setting_is_aggregate(t) || !config_setting_is_scalar(t) || !config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_INT64 failed.";
}
if ((t = libconfig->lookup(&config, "Setting_Float")) == NULL || config_setting_type(t) != CONFIG_TYPE_FLOAT
|| config_setting_is_group(t) || config_setting_is_array(t) || config_setting_is_list(t)
|| config_setting_is_aggregate(t) || !config_setting_is_scalar(t) || !config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_FLOAT failed.";
}
if ((t = libconfig->lookup(&config, "Setting_Bool")) == NULL || config_setting_type(t) != CONFIG_TYPE_BOOL
|| config_setting_is_group(t) || config_setting_is_array(t) || config_setting_is_list(t)
|| config_setting_is_aggregate(t) || !config_setting_is_scalar(t) || config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_BOOL failed.";
}
if ((t = libconfig->lookup(&config, "Setting_String")) == NULL || config_setting_type(t) != CONFIG_TYPE_STRING
|| config_setting_is_group(t) || config_setting_is_array(t) || config_setting_is_list(t)
|| config_setting_is_aggregate(t) || !config_setting_is_scalar(t) || config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_STRING failed.";
}
if ((t = libconfig->lookup(&config, "Setting_Array")) == NULL || config_setting_type(t) != CONFIG_TYPE_ARRAY
|| config_setting_is_group(t) || !config_setting_is_array(t) || config_setting_is_list(t)
|| !config_setting_is_aggregate(t) || config_setting_is_scalar(t) || config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_ARRAY failed.";
}
if ((t = libconfig->lookup(&config, "Setting_Group")) == NULL || config_setting_type(t) != CONFIG_TYPE_GROUP
|| !config_setting_is_group(t) || config_setting_is_array(t) || config_setting_is_list(t)
|| !config_setting_is_aggregate(t) || config_setting_is_scalar(t) || config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_GROUP failed.";
}
if ((t = libconfig->lookup(&config, "Setting_List")) == NULL || config_setting_type(t) != CONFIG_TYPE_LIST
|| config_setting_is_group(t) || config_setting_is_array(t) || !config_setting_is_list(t)
|| !config_setting_is_aggregate(t) || config_setting_is_scalar(t) || config_setting_is_number(t)
) {
libconfig->destroy(&config);
return "CONFIG_TYPE_LIST failed.";
}
libconfig->destroy(&config);
return NULL;
}
void parse_tcp_relay_ports_config(config_t *cfg, uint16_t **tcp_relay_ports, int *tcp_relay_port_count)
{
const char *NAME_TCP_RELAY_PORTS = "tcp_relay_ports";
*tcp_relay_port_count = 0;
config_setting_t *ports_array = config_lookup(cfg, NAME_TCP_RELAY_PORTS);
if (ports_array == NULL) {
syslog(LOG_WARNING, "No '%s' setting in the configuration file.\n", NAME_TCP_RELAY_PORTS);
syslog(LOG_WARNING, "Using default '%s':\n", NAME_TCP_RELAY_PORTS);
uint16_t default_ports[DEFAULT_TCP_RELAY_PORTS_COUNT] = {DEFAULT_TCP_RELAY_PORTS};
int i;
for (i = 0; i < DEFAULT_TCP_RELAY_PORTS_COUNT; i ++) {
syslog(LOG_WARNING, "Port #%d: %u\n", i, default_ports[i]);
}
// similar procedure to the one of reading config file below
*tcp_relay_ports = malloc(DEFAULT_TCP_RELAY_PORTS_COUNT * sizeof(uint16_t));
for (i = 0; i < DEFAULT_TCP_RELAY_PORTS_COUNT; i ++) {
(*tcp_relay_ports)[*tcp_relay_port_count] = default_ports[i];
if ((*tcp_relay_ports)[*tcp_relay_port_count] < MIN_ALLOWED_PORT
|| (*tcp_relay_ports)[*tcp_relay_port_count] > MAX_ALLOWED_PORT) {
syslog(LOG_WARNING, "Port #%d: Invalid port: %u, should be in [%d, %d]. Skipping.\n", i,
(*tcp_relay_ports)[*tcp_relay_port_count], MIN_ALLOWED_PORT, MAX_ALLOWED_PORT);
continue;
}
(*tcp_relay_port_count) ++;
}
// the loop above skips invalid ports, so we adjust the allocated memory size
if ((*tcp_relay_port_count) > 0) {
*tcp_relay_ports = realloc(*tcp_relay_ports, (*tcp_relay_port_count) * sizeof(uint16_t));
} else {
free(*tcp_relay_ports);
*tcp_relay_ports = NULL;
}
return;
}
if (config_setting_is_array(ports_array) == CONFIG_FALSE) {
syslog(LOG_WARNING, "'%s' setting should be an array. Array syntax: 'setting = [value1, value2, ...]'.\n",
NAME_TCP_RELAY_PORTS);
return;
}
int config_port_count = config_setting_length(ports_array);
if (config_port_count == 0) {
syslog(LOG_WARNING, "'%s' is empty.\n", NAME_TCP_RELAY_PORTS);
return;
}
*tcp_relay_ports = malloc(config_port_count * sizeof(uint16_t));
int i;
for (i = 0; i < config_port_count; i ++) {
config_setting_t *elem = config_setting_get_elem(ports_array, i);
if (elem == NULL) {
// it's NULL if `ports_array` is not an array (we have that check earlier) or if `i` is out of range, which should not be
syslog(LOG_WARNING, "Port #%d: Something went wrong while parsing the port. Stopping reading ports.\n", i);
break;
}
if (config_setting_is_number(elem) == CONFIG_FALSE) {
syslog(LOG_WARNING, "Port #%d: Not a number. Skipping.\n", i);
continue;
}
(*tcp_relay_ports)[*tcp_relay_port_count] = config_setting_get_int(elem);
if ((*tcp_relay_ports)[*tcp_relay_port_count] < MIN_ALLOWED_PORT
|| (*tcp_relay_ports)[*tcp_relay_port_count] > MAX_ALLOWED_PORT) {
syslog(LOG_WARNING, "Port #%d: Invalid port: %u, should be in [%d, %d]. Skipping.\n", i,
(*tcp_relay_ports)[*tcp_relay_port_count], MIN_ALLOWED_PORT, MAX_ALLOWED_PORT);
continue;
}
(*tcp_relay_port_count) ++;
}
// the loop above skips invalid ports, so we adjust the allocated memory size
if ((*tcp_relay_port_count) > 0) {
*tcp_relay_ports = realloc(*tcp_relay_ports, (*tcp_relay_port_count) * sizeof(uint16_t));
} else {
free(*tcp_relay_ports);
*tcp_relay_ports = NULL;
}
}
