int fuse_set_signal_handlers(struct fuse_session *se)
{
if (set_one_signal_handler(SIGHUP, exit_handler) == -1 ||
set_one_signal_handler(SIGINT, exit_handler) == -1 ||
set_one_signal_handler(SIGTERM, exit_handler) == -1 ||
set_one_signal_handler(SIGPIPE, SIG_IGN) == -1)
return -1;
fuse_instance = se;
return 0;
}
void fuse_remove_signal_handlers(struct fuse_session *se)
{
if (fuse_instance != se)
fprintf(stderr,
"fuse: fuse_remove_signal_handlers: unknown session\n");
else
fuse_instance = NULL;
set_one_signal_handler(SIGHUP, SIG_DFL);
set_one_signal_handler(SIGINT, SIG_DFL);
set_one_signal_handler(SIGTERM, SIG_DFL);
set_one_signal_handler(SIGPIPE, SIG_DFL);
}
int
fusefs_setup(char *mountpoint, const struct fuse_operations *op, char *opts) {
char fuse_new_opts[1024];
char fuse_mount_opts[1024];
char nopts[1024];
char *cur;
char *ptr;
fuse_new_opts[0] = '\0';
fuse_mount_opts[0] = '\0';
for (cur=opts;cur;cur = ptr) {
ptr = strchr(cur,',');
if (ptr) *(ptr++) = '\0';
if (fuse_is_lib_option(cur)) {
if (fuse_new_opts[0]) {
strcpy(nopts,fuse_new_opts);
snprintf(fuse_new_opts,1024,"%s,%s",nopts,cur);
} else {
snprintf(fuse_new_opts,1024,"%s",cur);
}
} else {
if (fuse_mount_opts[0]) {
strcpy(nopts,fuse_mount_opts);
snprintf(fuse_mount_opts,1024,"%s,%s",nopts,cur);
} else {
snprintf(fuse_mount_opts,1024,"%s",cur);
}
}
}
fusefd = -1;
if (fuse_instance != NULL) {
return 0;
}
if (mounted_at != NULL) {
return 0;
}
/* First, mount us */
fusefd = fuse_mount(mountpoint, fuse_mount_opts[0] ? fuse_mount_opts : NULL);
if (fusefd == -1) return 0;
fuse_instance = fuse_new(fusefd, fuse_new_opts[0] ? fuse_new_opts : NULL, op, sizeof(*op));
if (fuse_instance == NULL)
goto err_unmount;
/* Set signal handlers */
if (set_one_signal_handler(SIGHUP, fusefs_ehandler) == -1 ||
set_one_signal_handler(SIGINT, fusefs_ehandler) == -1 ||
set_one_signal_handler(SIGTERM, fusefs_ehandler) == -1 ||
set_one_signal_handler(SIGPIPE, SIG_IGN) == -1)
return 0;
atexit(fusefs_ehandler);
/* We've initialized it! */
mounted_at = strdup(mountpoint);
return 1;
err_destroy:
fuse_destroy(fuse_instance);
err_unmount:
fuse_unmount(mountpoint);
return 0;
}
int
main (int argc,
char **argv)
{
guint owner_id;
GBytes *introspection_bytes;
g_autoptr(GError) error = NULL;
g_autofree char *path = NULL;
GDBusConnection *session_bus;
GOptionContext *context;
setlocale (LC_ALL, "");
/* Avoid even loading gvfs to avoid accidental confusion */
g_setenv ("GIO_USE_VFS", "local", TRUE);
context = g_option_context_new ("- document portal");
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error))
{
g_printerr ("option parsing failed: %s\n", error->message);
return 1;
}
if (opt_daemon)
{
pid_t pid;
ssize_t read_res;
daemon_event_fd = eventfd (0, EFD_CLOEXEC);
pid = fork ();
if (pid != 0)
{
guint64 counter;
read_res = read (daemon_event_fd, &counter, sizeof (counter));
if (read_res != 8)
exit (1);
exit (counter - 1);
}
}
if (opt_verbose)
g_log_set_handler (NULL, G_LOG_LEVEL_DEBUG, message_handler, NULL);
g_set_prgname (argv[0]);
loop = g_main_loop_new (NULL, FALSE);
path = g_build_filename (g_get_user_data_dir (), "xdg-app/db", TABLE_NAME, NULL);
db = xdg_app_db_new (path, FALSE, &error);
if (db == NULL)
{
g_printerr ("Failed to load db: %s\n", error->message);
do_exit (2);
}
session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL, &error);
if (session_bus == NULL)
{
g_printerr ("No session bus: %s\n", error->message);
do_exit (3);
}
permission_store = xdg_app_permission_store_proxy_new_sync (session_bus,G_DBUS_PROXY_FLAGS_NONE,
"org.freedesktop.XdgApp",
"/org/freedesktop/XdgApp/PermissionStore",
NULL, &error);
if (permission_store == NULL)
{
g_print ("No permission store: %s\n", error->message);
do_exit (4);
}
/* We want do do our custom post-mainloop exit */
g_dbus_connection_set_exit_on_close (session_bus, FALSE);
g_signal_connect (session_bus, "closed", G_CALLBACK (session_bus_closed), NULL);
if (set_one_signal_handler(SIGHUP, exit_handler, 0) == -1 ||
set_one_signal_handler(SIGINT, exit_handler, 0) == -1 ||
set_one_signal_handler(SIGTERM, exit_handler, 0) == -1 ||
set_one_signal_handler(SIGPIPE, SIG_IGN, 0) == -1)
{
do_exit (5);
}
introspection_bytes = g_resources_lookup_data ("/org/freedesktop/portal/Documents/org.freedesktop.portal.Documents.xml", 0, NULL);
g_assert (introspection_bytes != NULL);
introspection_data = g_dbus_node_info_new_for_xml (g_bytes_get_data (introspection_bytes, NULL), NULL);
owner_id = g_bus_own_name (G_BUS_TYPE_SESSION,
"org.freedesktop.portal.Documents",
G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT | (opt_replace ? G_BUS_NAME_OWNER_FLAGS_REPLACE : 0),
on_bus_acquired,
on_name_acquired,
on_name_lost,
NULL,
NULL);
g_main_loop_run (loop);
xdp_fuse_exit ();
g_bus_unown_name (owner_id);
g_dbus_node_info_unref (introspection_data);
do_exit (final_exit_status);
return 0;
}
