Пример #1
0
enum cmd_retval
cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
{
	struct args		*args = self->args;
	struct client		*c = cmdq->client, *c0;
	struct session		*s, *groupwith;
	struct window		*w;
	struct environ		 env;
	struct termios		 tio, *tiop;
	const char		*newname, *target, *update, *errstr, *template;
	const char		*path;
	char		       **argv, *cmd, *cause, *cp;
	int			 detached, already_attached, idx, cwd, fd = -1;
	int			 argc;
	u_int			 sx, sy;
	struct format_tree	*ft;
	struct environ_entry	*envent;

	if (self->entry == &cmd_has_session_entry) {
		if (cmd_find_session(cmdq, args_get(args, 't'), 0) == NULL)
			return (CMD_RETURN_ERROR);
		return (CMD_RETURN_NORMAL);
	}

	if (args_has(args, 't') && (args->argc != 0 || args_has(args, 'n'))) {
		cmdq_error(cmdq, "command or window name given with target");
		return (CMD_RETURN_ERROR);
	}

	newname = args_get(args, 's');
	if (newname != NULL) {
		if (!session_check_name(newname)) {
			cmdq_error(cmdq, "bad session name: %s", newname);
			return (CMD_RETURN_ERROR);
		}
		if (session_find(newname) != NULL) {
			if (args_has(args, 'A')) {
				return (cmd_attach_session(cmdq, newname,
				    args_has(args, 'D'), 0, NULL,
				    args_has(args, 'E')));
			}
			cmdq_error(cmdq, "duplicate session: %s", newname);
			return (CMD_RETURN_ERROR);
		}
	}

	target = args_get(args, 't');
	if (target != NULL) {
		groupwith = cmd_find_session(cmdq, target, 0);
		if (groupwith == NULL)
			return (CMD_RETURN_ERROR);
	} else
		groupwith = NULL;

	/* Set -d if no client. */
	detached = args_has(args, 'd');
	if (c == NULL)
		detached = 1;

	/* Is this client already attached? */
	already_attached = 0;
	if (c != NULL && c->session != NULL)
		already_attached = 1;

	/* Get the new session working directory. */
	if (args_has(args, 'c')) {
		ft = format_create();
		format_defaults(ft, cmd_find_client(cmdq, NULL, 1), NULL, NULL,
		    NULL);
		cp = format_expand(ft, args_get(args, 'c'));
		format_free(ft);

		if (cp != NULL && *cp != '\0') {
			fd = open(cp, O_RDONLY|O_DIRECTORY);
			free(cp);
			if (fd == -1) {
				cmdq_error(cmdq, "bad working directory: %s",
				    strerror(errno));
				return (CMD_RETURN_ERROR);
			}
		} else if (cp != NULL)
			free(cp);
		cwd = fd;
	} else if (c != NULL && c->session == NULL)
		cwd = c->cwd;
	else if ((c0 = cmd_find_client(cmdq, NULL, 1)) != NULL)
		cwd = c0->session->cwd;
	else {
		fd = open(".", O_RDONLY);
		cwd = fd;
	}

	/*
	 * If this is a new client, check for nesting and save the termios
	 * settings (part of which is used for new windows in this session).
	 *
	 * tcgetattr() is used rather than using tty.tio since if the client is
	 * detached, tty_open won't be called. It must be done before opening
	 * the terminal as that calls tcsetattr() to prepare for tmux taking
	 * over.
	 */
	if (!detached && !already_attached && c->tty.fd != -1) {
		if (server_client_check_nested(cmdq->client)) {
			cmdq_error(cmdq, "sessions should be nested with care, "
			    "unset $TMUX to force");
			return (CMD_RETURN_ERROR);
		}
		if (tcgetattr(c->tty.fd, &tio) != 0)
			fatal("tcgetattr failed");
		tiop = &tio;
	} else
		tiop = NULL;

	/* Open the terminal if necessary. */
	if (!detached && !already_attached) {
		if (server_client_open(c, &cause) != 0) {
			cmdq_error(cmdq, "open terminal failed: %s", cause);
			free(cause);
			goto error;
		}
	}

	/* Find new session size. */
	if (c != NULL) {
		sx = c->tty.sx;
		sy = c->tty.sy;
	} else {
		sx = 80;
		sy = 24;
	}
	if (detached && args_has(args, 'x')) {
		sx = strtonum(args_get(args, 'x'), 1, USHRT_MAX, &errstr);
		if (errstr != NULL) {
			cmdq_error(cmdq, "width %s", errstr);
			goto error;
		}
	}
	if (detached && args_has(args, 'y')) {
		sy = strtonum(args_get(args, 'y'), 1, USHRT_MAX, &errstr);
		if (errstr != NULL) {
			cmdq_error(cmdq, "height %s", errstr);
			goto error;
		}
	}
	if (sy > 0 && options_get_number(&global_s_options, "status"))
		sy--;
	if (sx == 0)
		sx = 1;
	if (sy == 0)
		sy = 1;

	/* Figure out the command for the new window. */
	argc = -1;
	argv = NULL;
	if (target == NULL && args->argc != 0) {
		argc = args->argc;
		argv = args->argv;
	} else if (target == NULL) {
		cmd = options_get_string(&global_s_options, "default-command");
		if (cmd != NULL && *cmd != '\0') {
			argc = 1;
			argv = &cmd;
		} else {
			argc = 0;
			argv = NULL;
		}
	}

	path = NULL;
	if (c != NULL && c->session == NULL)
		envent = environ_find(&c->environ, "PATH");
	else
		envent = environ_find(&global_environ, "PATH");
	if (envent != NULL)
		path = envent->value;

	/* Construct the environment. */
	environ_init(&env);
	if (c != NULL && !args_has(args, 'E')) {
		update = options_get_string(&global_s_options,
		    "update-environment");
		environ_update(update, &c->environ, &env);
	}

	/* Create the new session. */
	idx = -1 - options_get_number(&global_s_options, "base-index");
	s = session_create(newname, argc, argv, path, cwd, &env, tiop, idx, sx,
	    sy, &cause);
	if (s == NULL) {
		cmdq_error(cmdq, "create session failed: %s", cause);
		free(cause);
		goto error;
	}
	environ_free(&env);

	/* Set the initial window name if one given. */
	if (argc >= 0 && args_has(args, 'n')) {
		w = s->curw->window;
		window_set_name(w, args_get(args, 'n'));
		options_set_number(&w->options, "automatic-rename", 0);
	}

	/*
	 * If a target session is given, this is to be part of a session group,
	 * so add it to the group and synchronize.
	 */
	if (groupwith != NULL) {
		session_group_add(groupwith, s);
		session_group_synchronize_to(s);
		session_select(s, RB_MIN(winlinks, &s->windows)->idx);
	}

	/*
	 * Set the client to the new session. If a command client exists, it is
	 * taking this session and needs to get MSG_READY and stay around.
	 */
	if (!detached) {
		if (!already_attached)
			server_write_ready(c);
		else if (c->session != NULL)
			c->last_session = c->session;
		c->session = s;
		status_timer_start(c);
		notify_attached_session_changed(c);
		session_update_activity(s);
		server_redraw_client(c);
	}
	recalculate_sizes();
	server_update_socket();

	/*
	 * If there are still configuration file errors to display, put the new
	 * session's current window into more mode and display them now.
	 */
	if (cfg_finished)
		cfg_show_causes(s);

	/* Print if requested. */
	if (args_has(args, 'P')) {
		if ((template = args_get(args, 'F')) == NULL)
Пример #2
0
enum cmd_retval
cmd_attach_session(struct cmd_q *cmdq, const char *tflag, int dflag, int rflag,
    const char *cflag)
{
	struct session		*s;
	struct client		*c;
	struct winlink		*wl = NULL;
	struct window		*w = NULL;
	struct window_pane	*wp = NULL;
	const char		*update;
	char			*cause;
	u_int			 i;
	int			 fd;
	struct format_tree	*ft;
	char			*cp;

	if (RB_EMPTY(&sessions)) {
		cmdq_error(cmdq, "no sessions");
		return (CMD_RETURN_ERROR);
	}

	if (tflag == NULL) {
		if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
			return (CMD_RETURN_ERROR);
	} else if (tflag[strcspn(tflag, ":.")] != '\0') {
		if ((wl = cmd_find_pane(cmdq, tflag, &s, &wp)) == NULL)
			return (CMD_RETURN_ERROR);
	} else {
		if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
			return (CMD_RETURN_ERROR);
		w = cmd_lookup_windowid(tflag);
		if (w == NULL && (wp = cmd_lookup_paneid(tflag)) != NULL)
			w = wp->window;
		if (w != NULL)
			wl = winlink_find_by_window(&s->windows, w);
	}

	if (cmdq->client == NULL)
		return (CMD_RETURN_NORMAL);

	if (wl != NULL) {
		if (wp != NULL)
			window_set_active_pane(wp->window, wp);
		session_set_current(s, wl);
	}

	if (cmdq->client->session != NULL) {
		if (dflag) {
			/*
			 * Can't use server_write_session in case attaching to
			 * the same session as currently attached to.
			 */
			for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
				c = ARRAY_ITEM(&clients, i);
				if (c == NULL || c->session != s)
					continue;
				if (c == cmdq->client)
					continue;
				server_write_client(c, MSG_DETACH,
				    c->session->name,
				    strlen(c->session->name) + 1);
			}
		}

		if (cflag != NULL) {
			ft = format_create();
			if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL)
				format_client(ft, c);
			format_session(ft, s);
			format_winlink(ft, s, s->curw);
			format_window_pane(ft, s->curw->window->active);
			cp = format_expand(ft, cflag);
			format_free(ft);

			fd = open(cp, O_RDONLY|O_DIRECTORY);
			free(cp);
			if (fd == -1) {
				cmdq_error(cmdq, "bad working directory: %s",
				    strerror(errno));
				return (CMD_RETURN_ERROR);
			}
			close(s->cwd);
			s->cwd = fd;
		}

		cmdq->client->session = s;
		notify_attached_session_changed(cmdq->client);
		session_update_activity(s);
		server_redraw_client(cmdq->client);
		s->curw->flags &= ~WINLINK_ALERTFLAGS;
	} else {
		if (server_client_open(cmdq->client, s, &cause) != 0) {
			cmdq_error(cmdq, "open terminal failed: %s", cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}

		if (cflag != NULL) {
			ft = format_create();
			if ((c = cmd_find_client(cmdq, NULL, 1)) != NULL)
				format_client(ft, c);
			format_session(ft, s);
			format_winlink(ft, s, s->curw);
			format_window_pane(ft, s->curw->window->active);
			cp = format_expand(ft, cflag);
			format_free(ft);

			fd = open(cp, O_RDONLY|O_DIRECTORY);
			free(cp);
			if (fd == -1) {
				cmdq_error(cmdq, "bad working directory: %s",
				    strerror(errno));
				return (CMD_RETURN_ERROR);
			}
			close(s->cwd);
			s->cwd = fd;
		}

		if (rflag)
			cmdq->client->flags |= CLIENT_READONLY;

		if (dflag) {
			server_write_session(s, MSG_DETACH, s->name,
			    strlen(s->name) + 1);
		}

		update = options_get_string(&s->options, "update-environment");
		environ_update(update, &cmdq->client->environ, &s->environ);

		cmdq->client->session = s;
		notify_attached_session_changed(cmdq->client);
		session_update_activity(s);
		server_redraw_client(cmdq->client);
		s->curw->flags &= ~WINLINK_ALERTFLAGS;

		server_write_ready(cmdq->client);
		cmdq->client_exit = 0;
	}
	recalculate_sizes();
	server_update_socket();

	return (CMD_RETURN_NORMAL);
}
Пример #3
0
int
cmd_new_session_exec(struct cmd *self, struct cmd_ctx *ctx)
{
	struct args		*args = self->args;
	struct session		*s, *old_s, *groupwith;
	struct window		*w;
	struct window_pane	*wp;
	struct environ		 env;
	struct termios		 tio, *tiop;
	struct passwd		*pw;
	const char		*newname, *target, *update, *cwd, *errstr;
	char			*cmd, *cause;
	int			 detached, idx;
	u_int			 sx, sy, i;

	newname = args_get(args, 's');
	if (newname != NULL) {
		if (!session_check_name(newname)) {
			ctx->error(ctx, "bad session name: %s", newname);
			return (-1);
		}
		if (session_find(newname) != NULL) {
			ctx->error(ctx, "duplicate session: %s", newname);
			return (-1);
		}
	}

	target = args_get(args, 't');
	if (target != NULL) {
		groupwith = cmd_find_session(ctx, target, 0);
		if (groupwith == NULL)
			return (-1);
	} else
		groupwith = NULL;

	/*
	 * There are three cases:
	 *
	 * 1. If cmdclient is non-NULL, new-session has been called from the
	 *    command-line - cmdclient is to become a new attached, interactive
	 *    client. Unless -d is given, the terminal must be opened and then
	 *    the client sent MSG_READY.
	 *
	 * 2. If cmdclient is NULL, new-session has been called from an
	 *    existing client (such as a key binding).
	 *
	 * 3. Both are NULL, the command was in the configuration file. Treat
	 *    this as if -d was given even if it was not.
	 *
	 * In all cases, a new additional session needs to be created and
	 * (unless -d) set as the current session for the client.
	 */

	/* Set -d if no client. */
	detached = args_has(args, 'd');
	if (ctx->cmdclient == NULL && ctx->curclient == NULL)
		detached = 1;

	/*
	 * Save the termios settings, part of which is used for new windows in
	 * this session.
	 *
	 * This is read again with tcgetattr() rather than using tty.tio as if
	 * detached, tty_open won't be called. Because of this, it must be done
	 * before opening the terminal as that calls tcsetattr() to prepare for
	 * tmux taking over.
	 */
	if (ctx->cmdclient != NULL && ctx->cmdclient->tty.fd != -1) {
		if (tcgetattr(ctx->cmdclient->tty.fd, &tio) != 0)
			fatal("tcgetattr failed");
		tiop = &tio;
	} else
		tiop = NULL;

	/* Open the terminal if necessary. */
	if (!detached && ctx->cmdclient != NULL) {
		if (server_client_open(ctx->cmdclient, NULL, &cause) != 0) {
			ctx->error(ctx, "open terminal failed: %s", cause);
			xfree(cause);
			return (-1);
		}
	}

	/* Get the new session working directory. */
	if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
		cwd = ctx->cmdclient->cwd;
	else {
		pw = getpwuid(getuid());
		if (pw->pw_dir != NULL && *pw->pw_dir != '\0')
			cwd = pw->pw_dir;
		else
			cwd = "/";
	}

	/* Find new session size. */
	if (ctx->cmdclient != NULL) {
		sx = ctx->cmdclient->tty.sx;
		sy = ctx->cmdclient->tty.sy;
	} else if (ctx->curclient != NULL) {
		sx = ctx->curclient->tty.sx;
		sy = ctx->curclient->tty.sy;
	} else {
		sx = 80;
		sy = 24;
	}
	if (detached) {
		if (args_has(args, 'x')) {
			sx = strtonum(
			    args_get(args, 'x'), 1, USHRT_MAX, &errstr);
			if (errstr != NULL) {
				ctx->error(ctx, "width %s", errstr);
				return (-1);
			}
		}
		if (args_has(args, 'y')) {
			sy = strtonum(
			    args_get(args, 'y'), 1, USHRT_MAX, &errstr);
			if (errstr != NULL) {
				ctx->error(ctx, "height %s", errstr);
				return (-1);
			}
		}
	}
	if (sy > 0 && options_get_number(&global_s_options, "status"))
		sy--;
	if (sx == 0)
		sx = 1;
	if (sy == 0)
		sy = 1;

	/* Figure out the command for the new window. */
	if (target != NULL)
		cmd = NULL;
	else if (args->argc != 0)
		cmd = args->argv[0];
	else
		cmd = options_get_string(&global_s_options, "default-command");

	/* Construct the environment. */
	environ_init(&env);
	update = options_get_string(&global_s_options, "update-environment");
	if (ctx->cmdclient != NULL)
		environ_update(update, &ctx->cmdclient->environ, &env);

	/* Create the new session. */
	idx = -1 - options_get_number(&global_s_options, "base-index");
	s = session_create(newname, cmd, cwd, &env, tiop, idx, sx, sy, &cause);
	if (s == NULL) {
		ctx->error(ctx, "create session failed: %s", cause);
		xfree(cause);
		return (-1);
	}
	environ_free(&env);

	/* Set the initial window name if one given. */
	if (cmd != NULL && args_has(args, 'n')) {
		w = s->curw->window;

		window_set_name(w, args_get(args, 'n'));

		options_set_number(&w->options, "automatic-rename", 0);
	}

	/*
	 * If a target session is given, this is to be part of a session group,
	 * so add it to the group and synchronize.
	 */
	if (groupwith != NULL) {
		session_group_add(groupwith, s);
		session_group_synchronize_to(s);
		session_select(s, RB_ROOT(&s->windows)->idx);
	}

	/*
	 * Set the client to the new session. If a command client exists, it is
	 * taking this session and needs to get MSG_READY and stay around.
	 */
	if (!detached) {
		if (ctx->cmdclient != NULL) {
			server_write_ready(ctx->cmdclient);

			old_s = ctx->cmdclient->session;
			if (old_s != NULL)
				ctx->cmdclient->last_session = old_s;
			ctx->cmdclient->session = s;
			notify_attached_session_changed(ctx->cmdclient);
			session_update_activity(s);
			server_redraw_client(ctx->cmdclient);
		} else {
			old_s = ctx->curclient->session;
			if (old_s != NULL)
				ctx->curclient->last_session = old_s;
			ctx->curclient->session = s;
			notify_attached_session_changed(ctx->curclient);
			session_update_activity(s);
			server_redraw_client(ctx->curclient);
		}
	}
	recalculate_sizes();
	server_update_socket();

	/*
	 * If there are still configuration file errors to display, put the new
	 * session's current window into more mode and display them now.
	 */
	if (cfg_finished && !ARRAY_EMPTY(&cfg_causes)) {
		wp = s->curw->window->active;
		window_pane_set_mode(wp, &window_copy_mode);
		window_copy_init_for_output(wp);
		for (i = 0; i < ARRAY_LENGTH(&cfg_causes); i++) {
			cause = ARRAY_ITEM(&cfg_causes, i);
			window_copy_add(wp, "%s", cause);
			xfree(cause);
		}
		ARRAY_FREE(&cfg_causes);
	}

	return (!detached);	/* 1 means don't tell command client to exit */
}
Пример #4
0
int
cmd_attach_session_exec(struct cmd *self, struct cmd_ctx *ctx)
{
	struct args	*args = self->args;
	struct session	*s;
	struct client	*c;
	const char	*update;
	char		*cause;
	u_int		 i;

	if (RB_EMPTY(&sessions)) {
		ctx->error(ctx, "no sessions");
		return (-1);
	}

	if ((s = cmd_find_session(ctx, args_get(args, 't'), 1)) == NULL)
		return (-1);

	if (ctx->cmdclient == NULL && ctx->curclient == NULL)
		return (0);

	if (ctx->cmdclient == NULL) {
		if (args_has(self->args, 'd')) {
			/*
			 * Can't use server_write_session in case attaching to
			 * the same session as currently attached to.
			 */
			for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
				c = ARRAY_ITEM(&clients, i);
				if (c == NULL || c->session != s)
					continue;
				if (c == ctx->curclient)
					continue;
				server_write_client(c, MSG_DETACH, NULL, 0);
			}
		}

		ctx->curclient->session = s;
		notify_attached_session_changed(ctx->curclient);
		session_update_activity(s);
		server_redraw_client(ctx->curclient);
		s->curw->flags &= ~WINLINK_ALERTFLAGS;
	} else {
		if (server_client_open(ctx->cmdclient, s, &cause) != 0) {
			ctx->error(ctx, "open terminal failed: %s", cause);
			xfree(cause);
			return (-1);
		}

		if (args_has(self->args, 'r'))
			ctx->cmdclient->flags |= CLIENT_READONLY;

		if (args_has(self->args, 'd'))
			server_write_session(s, MSG_DETACH, NULL, 0);

		ctx->cmdclient->session = s;
		notify_attached_session_changed(ctx->cmdclient);
		session_update_activity(s);
		server_write_ready(ctx->cmdclient);

		update = options_get_string(&s->options, "update-environment");
		environ_update(update, &ctx->cmdclient->environ, &s->environ);

		server_redraw_client(ctx->cmdclient);
		s->curw->flags &= ~WINLINK_ALERTFLAGS;
	}
	recalculate_sizes();
	server_update_socket();

	return (1);	/* 1 means don't tell command client to exit */
}
Пример #5
0
enum cmd_retval
cmd_attach_session(struct cmd_q *cmdq, const char* tflag, int dflag, int rflag)
{
	struct session	*s;
	struct client	*c;
	const char	*update;
	char		*cause;
	u_int		 i;

	if (RB_EMPTY(&sessions)) {
		cmdq_error(cmdq, "no sessions");
		return (CMD_RETURN_ERROR);
	}

	if ((s = cmd_find_session(cmdq, tflag, 1)) == NULL)
		return (CMD_RETURN_ERROR);

	if (cmdq->client == NULL)
		return (CMD_RETURN_NORMAL);

	if (cmdq->client->session != NULL) {
		if (dflag) {
			/*
			 * Can't use server_write_session in case attaching to
			 * the same session as currently attached to.
			 */
			for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
				c = ARRAY_ITEM(&clients, i);
				if (c == NULL || c->session != s)
					continue;
				if (c == cmdq->client)
					continue;
				server_write_client(c, MSG_DETACH, NULL, 0);
			}
		}

		cmdq->client->session = s;
		notify_attached_session_changed(cmdq->client);
		session_update_activity(s);
		server_redraw_client(cmdq->client);
		s->curw->flags &= ~WINLINK_ALERTFLAGS;
	} else {
		if (server_client_open(cmdq->client, s, &cause) != 0) {
			cmdq_error(cmdq, "open terminal failed: %s", cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}

		if (rflag)
			cmdq->client->flags |= CLIENT_READONLY;

		if (dflag)
			server_write_session(s, MSG_DETACH, NULL, 0);

		update = options_get_string(&s->options, "update-environment");
		environ_update(update, &cmdq->client->environ, &s->environ);

		cmdq->client->session = s;
		notify_attached_session_changed(cmdq->client);
		session_update_activity(s);
		server_redraw_client(cmdq->client);
		s->curw->flags &= ~WINLINK_ALERTFLAGS;

		server_write_ready(cmdq->client);
		cmdq->client_exit = 0;
	}
	recalculate_sizes();
	server_update_socket();

	return (CMD_RETURN_NORMAL);
}