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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <talloc.h>
#include <dbus/dbus.h>
typedef int errno_t;
#define EOK 0
#define INFOPIPE_DBUS_NAME "org.freedesktop.sssd.infopipe"
#define INFOPIPE_INTERFACE "org.freedesktop.sssd.infopipe"
#define INFOPIPE_PATH "/org/freedesktop/sssd/infopipe"
#define SSS_METHOD_DOMAIN_LIST "ListDomains"
#define DBUS_PROP_IFACE "org.freedesktop.DBus.Properties"
static DBusMessage* sss_dbus_infopipe_call(DBusConnection *conn,
const char *method)
{
return dbus_message_new_method_call(INFOPIPE_DBUS_NAME,
INFOPIPE_PATH,
INFOPIPE_INTERFACE,
method);
}
static DBusMessage* sss_dbus_property_call(DBusConnection *conn,
const char *object_path,
const char *method)
{
return dbus_message_new_method_call(INFOPIPE_DBUS_NAME,
object_path,
DBUS_PROP_IFACE,
method);
}
errno_t sss_dbus_get_string_property(TALLOC_CTX *mem_ctx,
DBusConnection *conn,
DBusError *error,
const char *object_path,
const char *property,
char **_out)
{
DBusMessage *msg = NULL;
DBusMessage *reply = NULL;
DBusMessageIter iter;
DBusMessageIter subiter;
char *prop = NULL;
dbus_bool_t dbret;
errno_t ret;
msg = sss_dbus_property_call(conn, object_path, "Get");
if (msg == NULL) {
ret = ENOMEM;
goto done;
}
dbret = dbus_message_append_args(msg,
DBUS_TYPE_STRING, &property,
DBUS_TYPE_INVALID);
if (!dbret) {
ret = ENOMEM;
goto done;
}
reply = dbus_connection_send_with_reply_and_block(conn, msg, 5000, error);
if (dbus_error_is_set(error)) {
ret = EIO;
goto done;
}
dbus_message_iter_init(reply, &iter);
if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
ret = EINVAL;
goto done;
}
dbus_message_iter_recurse(&iter, &subiter);
if (dbus_message_iter_get_arg_type(&subiter) != DBUS_TYPE_STRING) {
ret = EINVAL;
goto done;
}
dbus_message_iter_get_basic(&subiter, &prop);
*_out = talloc_strdup(mem_ctx, prop);
if (*_out == NULL) {
ret = ENOMEM;
goto done;
}
ret = EOK;
done:
if (msg != NULL) {
dbus_message_unref(msg);
}
if (reply != NULL) {
dbus_message_unref(reply);
}
return ret;
}
errno_t sss_dbus_list_domains(TALLOC_CTX *mem_ctx,
DBusConnection *conn,
DBusError *error,
char ***_domains)
{
DBusMessage *msg = NULL;
DBusMessage *reply = NULL;
char **domains = NULL;
char **objects = NULL;
int num_objects;
dbus_bool_t dbret;
errno_t ret;
int i;
if (conn == NULL || error == NULL) {
ret = EINVAL;
goto done;
}
msg = sss_dbus_infopipe_call(conn, SSS_METHOD_DOMAIN_LIST);
if (msg == NULL) {
ret = ENOMEM;
goto done;
}
reply = dbus_connection_send_with_reply_and_block(conn, msg, 5000, error);
if (dbus_error_is_set(error)) {
ret = EIO;
goto done;
}
dbret = dbus_message_get_args(reply, error,
DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
&objects, &num_objects,
DBUS_TYPE_INVALID);
if (!dbret) {
ret = EIO;
goto done;
}
if (objects == NULL || num_objects == 0) {
ret = ENOENT;
goto done;
}
domains = talloc_zero_array(mem_ctx, char*, num_objects + 1);
if (domains == NULL) {
ret = ENOMEM;
goto done;
}
for (i = 0; i < num_objects; i++) {
ret = sss_dbus_get_string_property(domains, conn, error, objects[i],
"name", &domains[i]);
if (ret != EOK) {
goto done;
}
}
*_domains = domains;
ret = EOK;
done:
if (ret != EOK) {
talloc_free(domains);
}
if (msg != NULL) {
dbus_message_unref(msg);
}
if (reply != NULL) {
dbus_message_unref(reply);
}
return ret;
}
int main(int argc, const char **argv)
{
DBusConnection *conn = NULL;
DBusError error;
char **domains = NULL;
errno_t ret;
int i;
dbus_error_init(&error);
conn = dbus_bus_get(DBUS_BUS_SYSTEM, &error);
if (dbus_error_is_set(&error)) {
fprintf(stderr, "Failed to open connection to bus: %s\n",
error.message);
return 1;
}
ret = sss_dbus_list_domains(NULL, conn, &error, &domains);
if (ret != EOK) {
fprintf(stderr, "Error [%d]: %s\n", ret, strerror(ret));
return 1;
}
for (i = 0; domains[i] != NULL; i++) {
printf("%s\n", domains[i]);
}
dbus_connection_unref(conn);
return 0;
}
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