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)
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);
}
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 */
}
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 */
}
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);
}