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tmux 2.4

/* $OpenBSD$ */

/*
 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include <sys/types.h>

#include <stdlib.h>
#include <string.h>

#include "tmux.h"

/*
 * Change session name.
 */

static enum cmd_retval	cmd_rename_session_exec(struct cmd *,
			    struct cmdq_item *);

const struct cmd_entry cmd_rename_session_entry = {
	.name = "rename-session",
	.alias = "rename",

	.args = { "t:", 1, 1 },
	.usage = CMD_TARGET_SESSION_USAGE " new-name",

	.tflag = CMD_SESSION,

	.flags = CMD_AFTERHOOK,
	.exec = cmd_rename_session_exec
};

static enum cmd_retval
cmd_rename_session_exec(struct cmd *self, struct cmdq_item *item)
{
	struct args	*args = self->args;
	struct session	*s = item->state.tflag.s;
	const char	*newname;

	newname = args->argv[0];
	if (strcmp(newname, s->name) == 0)
		return (CMD_RETURN_NORMAL);

	if (!session_check_name(newname)) {
		cmdq_error(item, "bad session name: %s", newname);
		return (CMD_RETURN_ERROR);
	}
	if (session_find(newname) != NULL) {
		cmdq_error(item, "duplicate session: %s", newname);
		return (CMD_RETURN_ERROR);
	}

	RB_REMOVE(sessions, &sessions, s);
	free(s->name);
	s->name = xstrdup(newname);
	RB_INSERT(sessions, &sessions, s);

	server_status_session(s);
	notify_session("session-renamed", s);

	return (CMD_RETURN_NORMAL);
}