/src/tmux/cmd-set-option.c

Source
/* $OpenBSD: cmd-set-option.c,v 1.147 2026/10/09 13:12:14 nicm Exp $ */

/*
 * 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"

/*
 * Set an option.
 */

static enum args_parse_type cmd_set_option_args_parse(struct args *,
            u_int, char **);
static enum cmd_retval    cmd_set_option_exec(struct cmd *,
            struct cmdq_item *);
static enum cmd_retval    cmd_set_hook_event_exec(struct cmd *,
            struct cmdq_item *);
static enum cmd_retval    cmd_set_hook_monitor_exec(struct cmdq_item *,
            struct args *, int);

const struct cmd_entry cmd_set_option_entry = {
  .name = "set-option",
  .description = "Set a server, session, or pane option.",
  .alias = "set",

  .args = { "aFgopqst:uUw", 1, 2, cmd_set_option_args_parse },
  .usage = "[-aFgopqsuUw] " CMD_TARGET_PANE_USAGE " option [value]",

  .target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },

  .flags = CMD_AFTERHOOK,
  .exec = cmd_set_option_exec
};

const struct cmd_entry cmd_set_window_option_entry = {
  .name = "set-window-option",
  .description = "Set a window option.",
  .alias = "setw",

  .args = { "aFgoqt:u", 1, 2, cmd_set_option_args_parse },
  .usage = "[-aFgoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",

  .target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },

  .flags = CMD_AFTERHOOK,
  .exec = cmd_set_option_exec
};

const struct cmd_entry cmd_set_hook_entry = {
  .name = "set-hook",
  .description = "Set or remove a hook.",
  .alias = NULL,

  .args = { "agpERTt:uB:w", 0, 2, cmd_set_option_args_parse },
  .usage = "[-agpERTuw] [-B name:what:format] " CMD_TARGET_PANE_USAGE " "
     "[hook] [command]",

  .target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },

  .flags = CMD_AFTERHOOK,
  .exec = cmd_set_option_exec
};

static enum args_parse_type
cmd_set_option_args_parse(struct args *args, u_int idx,
    __unused char **cause)
{
  if (args_has(args, 'B'))
    return (ARGS_PARSE_COMMANDS_OR_STRING);
  if (idx == 1)
    return (ARGS_PARSE_COMMANDS_OR_STRING);
  return (ARGS_PARSE_STRING);
}

static enum cmd_retval
cmd_set_hook_event_exec(struct cmd *self, struct cmdq_item *item)
{
  struct args   *args = cmd_get_args(self);
  struct cmd_find_state *target = cmdq_get_target(item);
  struct event_payload  *ep;
  struct client   *c;
  char      *argument;

  if (args_count(args) == 0) {
    cmdq_error(item, "missing argument");
    return (CMD_RETURN_ERROR);
  }
  if (args_count(args) != 1) {
    cmdq_error(item, "too many arguments");
    return (CMD_RETURN_ERROR);
  }

  argument = format_single_from_target(item, args_string(args, 0));
  if (*argument != '@') {
    cmdq_error(item, "event name must start with @");
    free(argument);
    return (CMD_RETURN_ERROR);
  }

  ep = event_payload_create();
  event_payload_set_target(ep, target);
  c = cmdq_get_client(item);
  if (c != NULL)
    event_payload_set_client(ep, "client", c);
  if (target->s != NULL)
    event_payload_set_session(ep, "session", target->s);
  if (target->w != NULL)
    event_payload_set_window(ep, "window", target->w);
  if (target->wl != NULL)
    event_payload_set_int(ep, "window_index", target->wl->idx);
  else if (target->idx != -1)
    event_payload_set_int(ep, "window_index", target->idx);
  if (target->wp != NULL)
    event_payload_set_pane(ep, "pane", target->wp);
  events_fire(argument, ep);
  free(argument);
  return (CMD_RETURN_NORMAL);
}

static enum cmd_retval
cmd_set_hook_monitor_exec(struct cmdq_item *item, struct args *args, int window)
{
  struct cmd_find_state *target = cmdq_get_target(item), fs;
  struct options    *oo;
  struct options_entry  *o;
  struct session    *s = NULL;
  char      *cause = NULL, *name = NULL, *format = NULL;
  char      *expanded = NULL, *newvalue = NULL;
  const char    *value, *old;
  enum monitor_type  type;
  int      id, scope, flags = 0;

  if (args_count(args) > 1) {
    cmdq_error(item, "too many arguments");
    return (CMD_RETURN_ERROR);
  }

  value = args_get(args, 'B');
  if (args_has(args, 'u')) {
    if (monitor_parse(value, &name, &type, &id, &format) != 0)
      name = xstrdup(value);
    free(format);
    format = NULL;
  } else {
    if (monitor_parse(value, &name, &type, &id, &format) != 0) {
      cmdq_error(item, "invalid subscription: %s", value);
      return (CMD_RETURN_ERROR);
    }
  }

  if (*name != '@') {
    cmdq_error(item, "monitor hook name must start with @");
    goto fail;
  }

  scope = options_scope_from_name(args, window, name, target, &oo,
      &cause);
  if (scope == OPTIONS_TABLE_NONE) {
    cmdq_error(item, "%s", cause);
    free(cause);
    goto fail;
  }
  cmd_find_copy_state(&fs, target);

  if (args_has(args, 'u')) {
    hooks_monitor_remove(oo, name);
    goto out;
  }

  if (args_count(args) != 0) {
    value = args_string(args, 0);
    if (args_has(args, 'F')) {
      expanded = format_single_from_target(item, value);
      value = expanded;
    }
    o = options_get_only(oo, name);
    if (!args_has(args, 'o') || o == NULL) {
      if (args_has(args, 'a') && o != NULL) {
        old = options_get_string(oo, name);
        xasprintf(&newvalue, "%s%s", old, value);
        value = newvalue;
      }
      options_set_string(oo, name, 0, "%s", value);
      options_push_changes(name);
    }
  }

  if (oo != global_options &&
      oo != global_s_options &&
      oo != global_w_options)
    s = target->s;
  if (args_has(args, 'T'))
    flags |= MONITOR_NOTIFY_TRUE;
  hooks_monitor_add(item, oo, name, type, id, format, flags, &fs, s);

out:
  free(newvalue);
  free(expanded);
  free(name);
  free(format);
  return (CMD_RETURN_NORMAL);

fail:
  free(newvalue);
  free(expanded);
  free(name);
  free(format);
  return (CMD_RETURN_ERROR);
}

static enum cmd_retval
cmd_set_option_exec(struct cmd *self, struct cmdq_item *item)
{
  struct args     *args = cmd_get_args(self);
  int        append = args_has(args, 'a');
  struct cmd_find_state   *target = cmdq_get_target(item);
  struct window_pane    *loop;
  struct options      *oo;
  struct options_entry    *parent, *o, *po;
  char        *name, *argument, *cause;
  char        *expanded = NULL, *array_key = NULL;
  const char      *value;
  int        window, already, error, ambiguous;
  int        scope;

  window = (cmd_get_entry(self) == &cmd_set_window_option_entry);
  if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'E'))
    return (cmd_set_hook_event_exec(self, item));
  if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'B'))
    return (cmd_set_hook_monitor_exec(item, args, window));
  if (args_count(args) == 0) {
    cmdq_error(item, "missing argument");
    return (CMD_RETURN_ERROR);
  }

  /* Expand argument. */
  argument = format_single_from_target(item, args_string(args, 0));

  /* If set-hook -R, fire the hook straight away. */
  if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'R')) {
    hooks_run(item, argument);
    free(argument);
    return (CMD_RETURN_NORMAL);
  }

  /* Parse option name and array key. */
  name = options_match(argument, &array_key, &ambiguous);
  if (name == NULL) {
    if (args_has(args, 'q'))
      goto out;
    if (ambiguous)
      cmdq_error(item, "ambiguous option: %s", argument);
    else
      cmdq_error(item, "invalid option: %s", argument);
    goto fail;
  }
  if (args_count(args) < 2)
    value = NULL;
  else
    value = args_string(args, 1);
  if (value != NULL && args_has(args, 'F')) {
    expanded = format_single_from_target(item, value);
    value = expanded;
  }

  /* Get the scope and table for the option .*/
  scope = options_scope_from_name(args, window, name, target, &oo,
      &cause);
  if (scope == OPTIONS_TABLE_NONE) {
    if (args_has(args, 'q'))
      goto out;
    cmdq_error(item, "%s", cause);
    free(cause);
    goto fail;
  }
  o = options_get_only(oo, name);
  parent = options_get(oo, name);

  /* Check that array options and keys match up. */
  if (array_key != NULL && (*name == '@' || !options_is_array(parent))) {
    cmdq_error(item, "not an array: %s", argument);
    goto fail;
  }

  /* With -o, check this option is not already set. */
  if (!args_has(args, 'u') && args_has(args, 'o')) {
    if (array_key == NULL)
      already = (o != NULL);
    else {
      if (o == NULL)
        already = 0;
      else if (options_array_get(o, array_key) != NULL)
        already = 1;
      else
        already = 0;
    }
    if (already) {
      if (args_has(args, 'q'))
        goto out;
      cmdq_error(item, "already set: %s", argument);
      goto fail;
    }
  }

  /* Change the option. */
  if (args_has(args, 'U') && scope == OPTIONS_TABLE_WINDOW) {
    TAILQ_FOREACH(loop, &target->w->panes, entry) {
      po = options_get_only(loop->options, name);
      if (po == NULL)
        continue;
      if (options_remove_or_default(po, array_key,
          &cause) != 0) {
        cmdq_error(item, "%s", cause);
        free(cause);
        goto fail;
      }
    }
  }
  if (args_has(args, 'u') || args_has(args, 'U')) {
    if (o == NULL)
      goto out;
    if (options_remove_or_default(o, array_key, &cause) != 0) {
      cmdq_error(item, "%s", cause);
      free(cause);
      goto fail;
    }
  } else if (*name == '@') {
    if (value == NULL) {
      cmdq_error(item, "empty value");
      goto fail;
    }
    options_set_string(oo, name, append, "%s", value);
    if (cmd_get_entry(self) == &cmd_set_hook_entry)
      hooks_add_event(name);
  } else if (array_key == NULL && !options_is_array(parent)) {
    error = options_from_string(oo, options_table_entry(parent),
        options_table_entry(parent)->name, value,
        args_has(args, 'a'), &cause);
    if (error != 0) {
      cmdq_error(item, "%s", cause);
      free(cause);
      goto fail;
    }
  } else {
    if (value == NULL) {
      cmdq_error(item, "empty value");
      goto fail;
    }
    if (o == NULL)
      o = options_empty(oo, options_table_entry(parent));
    if (array_key == NULL) {
      if (!append)
        options_array_clear(o);
      if (options_array_assign(o, value, &cause) != 0) {
        cmdq_error(item, "%s", cause);
        free(cause);
        goto fail;
      }
    } else if (options_array_set(o, array_key, value, append,
        &cause) != 0) {
      cmdq_error(item, "%s", cause);
      free(cause);
      goto fail;
    }
  }

  options_push_changes(name);

out:
  free(argument);
  free(expanded);
  free(name);
  free(array_key);
  return (CMD_RETURN_NORMAL);

fail:
  free(argument);
  free(expanded);
  free(name);
  free(array_key);
  return (CMD_RETURN_ERROR);
}

Coverage Report

Created: 2026-10-17 06:18

Line	Count	Source
1		/* $OpenBSD: cmd-set-option.c,v 1.147 2026/10/09 13:12:14 nicm Exp $ */
2
3		/*
4		* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5		*
6		* Permission to use, copy, modify, and distribute this software for any
7		* purpose with or without fee is hereby granted, provided that the above
8		* copyright notice and this permission notice appear in all copies.
9		*
10		* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11		* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12		* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13		* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14		* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15		* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16		* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17		*/
18
19		#include <sys/types.h>
20
21		#include <stdlib.h>
22		#include <string.h>
23
24		#include "tmux.h"
25
26		/*
27		* Set an option.
28		*/
29
30		static enum args_parse_type cmd_set_option_args_parse(struct args *,
31		u_int, char **);
32		static enum cmd_retval cmd_set_option_exec(struct cmd *,
33		struct cmdq_item *);
34		static enum cmd_retval cmd_set_hook_event_exec(struct cmd *,
35		struct cmdq_item *);
36		static enum cmd_retval cmd_set_hook_monitor_exec(struct cmdq_item *,
37		struct args *, int);
38
39		const struct cmd_entry cmd_set_option_entry = {
40		.name = "set-option",
41		.description = "Set a server, session, or pane option.",
42		.alias = "set",
43
44		.args = { "aFgopqst:uUw", 1, 2, cmd_set_option_args_parse },
45		.usage = "[-aFgopqsuUw] " CMD_TARGET_PANE_USAGE " option [value]",
46
47		.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
48
49		.flags = CMD_AFTERHOOK,
50		.exec = cmd_set_option_exec
51		};
52
53		const struct cmd_entry cmd_set_window_option_entry = {
54		.name = "set-window-option",
55		.description = "Set a window option.",
56		.alias = "setw",
57
58		.args = { "aFgoqt:u", 1, 2, cmd_set_option_args_parse },
59		.usage = "[-aFgoqu] " CMD_TARGET_WINDOW_USAGE " option [value]",
60
61		.target = { 't', CMD_FIND_WINDOW, CMD_FIND_CANFAIL },
62
63		.flags = CMD_AFTERHOOK,
64		.exec = cmd_set_option_exec
65		};
66
67		const struct cmd_entry cmd_set_hook_entry = {
68		.name = "set-hook",
69		.description = "Set or remove a hook.",
70		.alias = NULL,
71
72		.args = { "agpERTt:uB:w", 0, 2, cmd_set_option_args_parse },
73		.usage = "[-agpERTuw] [-B name:what:format] " CMD_TARGET_PANE_USAGE " "
74		"[hook] [command]",
75
76		.target = { 't', CMD_FIND_PANE, CMD_FIND_CANFAIL },
77
78		.flags = CMD_AFTERHOOK,
79		.exec = cmd_set_option_exec
80		};
81
82		static enum args_parse_type
83		cmd_set_option_args_parse(struct args *args, u_int idx,
84		__unused char **cause)
85	0	{
86	0	if (args_has(args, 'B'))
87	0	return (ARGS_PARSE_COMMANDS_OR_STRING);
88	0	if (idx == 1)
89	0	return (ARGS_PARSE_COMMANDS_OR_STRING);
90	0	return (ARGS_PARSE_STRING);
91	0	}
92
93		static enum cmd_retval
94		cmd_set_hook_event_exec(struct cmd self, struct cmdq_item item)
95	0	{
96	0	struct args *args = cmd_get_args(self);
97	0	struct cmd_find_state *target = cmdq_get_target(item);
98	0	struct event_payload *ep;
99	0	struct client *c;
100	0	char *argument;
101
102	0	if (args_count(args) == 0) {
103	0	cmdq_error(item, "missing argument");
104	0	return (CMD_RETURN_ERROR);
105	0	}
106	0	if (args_count(args) != 1) {
107	0	cmdq_error(item, "too many arguments");
108	0	return (CMD_RETURN_ERROR);
109	0	}
110
111	0	argument = format_single_from_target(item, args_string(args, 0));
112	0	if (*argument != '@') {
113	0	cmdq_error(item, "event name must start with @");
114	0	free(argument);
115	0	return (CMD_RETURN_ERROR);
116	0	}
117
118	0	ep = event_payload_create();
119	0	event_payload_set_target(ep, target);
120	0	c = cmdq_get_client(item);
121	0	if (c != NULL)
122	0	event_payload_set_client(ep, "client", c);
123	0	if (target->s != NULL)
124	0	event_payload_set_session(ep, "session", target->s);
125	0	if (target->w != NULL)
126	0	event_payload_set_window(ep, "window", target->w);
127	0	if (target->wl != NULL)
128	0	event_payload_set_int(ep, "window_index", target->wl->idx);
129	0	else if (target->idx != -1)
130	0	event_payload_set_int(ep, "window_index", target->idx);
131	0	if (target->wp != NULL)
132	0	event_payload_set_pane(ep, "pane", target->wp);
133	0	events_fire(argument, ep);
134	0	free(argument);
135	0	return (CMD_RETURN_NORMAL);
136	0	}
137
138		static enum cmd_retval
139		cmd_set_hook_monitor_exec(struct cmdq_item item, struct args args, int window)
140	0	{
141	0	struct cmd_find_state *target = cmdq_get_target(item), fs;
142	0	struct options *oo;
143	0	struct options_entry *o;
144	0	struct session *s = NULL;
145	0	char cause = NULL, name = NULL, *format = NULL;
146	0	char expanded = NULL, newvalue = NULL;
147	0	const char value, old;
148	0	enum monitor_type type;
149	0	int id, scope, flags = 0;
150
151	0	if (args_count(args) > 1) {
152	0	cmdq_error(item, "too many arguments");
153	0	return (CMD_RETURN_ERROR);
154	0	}
155
156	0	value = args_get(args, 'B');
157	0	if (args_has(args, 'u')) {
158	0	if (monitor_parse(value, &name, &type, &id, &format) != 0)
159	0	name = xstrdup(value);
160	0	free(format);
161	0	format = NULL;
162	0	} else {
163	0	if (monitor_parse(value, &name, &type, &id, &format) != 0) {
164	0	cmdq_error(item, "invalid subscription: %s", value);
165	0	return (CMD_RETURN_ERROR);
166	0	}
167	0	}
168
169	0	if (*name != '@') {
170	0	cmdq_error(item, "monitor hook name must start with @");
171	0	goto fail;
172	0	}
173
174	0	scope = options_scope_from_name(args, window, name, target, &oo,
175	0	&cause);
176	0	if (scope == OPTIONS_TABLE_NONE) {
177	0	cmdq_error(item, "%s", cause);
178	0	free(cause);
179	0	goto fail;
180	0	}
181	0	cmd_find_copy_state(&fs, target);
182
183	0	if (args_has(args, 'u')) {
184	0	hooks_monitor_remove(oo, name);
185	0	goto out;
186	0	}
187
188	0	if (args_count(args) != 0) {
189	0	value = args_string(args, 0);
190	0	if (args_has(args, 'F')) {
191	0	expanded = format_single_from_target(item, value);
192	0	value = expanded;
193	0	}
194	0	o = options_get_only(oo, name);
195	0	if (!args_has(args, 'o') \|\| o == NULL) {
196	0	if (args_has(args, 'a') && o != NULL) {
197	0	old = options_get_string(oo, name);
198	0	xasprintf(&newvalue, "%s%s", old, value);
199	0	value = newvalue;
200	0	}
201	0	options_set_string(oo, name, 0, "%s", value);
202	0	options_push_changes(name);
203	0	}
204	0	}
205
206	0	if (oo != global_options &&
207	0	oo != global_s_options &&
208	0	oo != global_w_options)
209	0	s = target->s;
210	0	if (args_has(args, 'T'))
211	0	flags \|= MONITOR_NOTIFY_TRUE;
212	0	hooks_monitor_add(item, oo, name, type, id, format, flags, &fs, s);
213
214	0	out:
215	0	free(newvalue);
216	0	free(expanded);
217	0	free(name);
218	0	free(format);
219	0	return (CMD_RETURN_NORMAL);
220
221	0	fail:
222	0	free(newvalue);
223	0	free(expanded);
224	0	free(name);
225	0	free(format);
226	0	return (CMD_RETURN_ERROR);
227	0	}
228
229		static enum cmd_retval
230		cmd_set_option_exec(struct cmd self, struct cmdq_item item)
231	0	{
232	0	struct args *args = cmd_get_args(self);
233	0	int append = args_has(args, 'a');
234	0	struct cmd_find_state *target = cmdq_get_target(item);
235	0	struct window_pane *loop;
236	0	struct options *oo;
237	0	struct options_entry parent, o, *po;
238	0	char name, argument, *cause;
239	0	char expanded = NULL, array_key = NULL;
240	0	const char *value;
241	0	int window, already, error, ambiguous;
242	0	int scope;
243
244	0	window = (cmd_get_entry(self) == &cmd_set_window_option_entry);
245	0	if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'E'))
246	0	return (cmd_set_hook_event_exec(self, item));
247	0	if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'B'))
248	0	return (cmd_set_hook_monitor_exec(item, args, window));
249	0	if (args_count(args) == 0) {
250	0	cmdq_error(item, "missing argument");
251	0	return (CMD_RETURN_ERROR);
252	0	}
253
254		/* Expand argument. */
255	0	argument = format_single_from_target(item, args_string(args, 0));
256
257		/* If set-hook -R, fire the hook straight away. */
258	0	if (cmd_get_entry(self) == &cmd_set_hook_entry && args_has(args, 'R')) {
259	0	hooks_run(item, argument);
260	0	free(argument);
261	0	return (CMD_RETURN_NORMAL);
262	0	}
263
264		/* Parse option name and array key. */
265	0	name = options_match(argument, &array_key, &ambiguous);
266	0	if (name == NULL) {
267	0	if (args_has(args, 'q'))
268	0	goto out;
269	0	if (ambiguous)
270	0	cmdq_error(item, "ambiguous option: %s", argument);
271	0	else
272	0	cmdq_error(item, "invalid option: %s", argument);
273	0	goto fail;
274	0	}
275	0	if (args_count(args) < 2)
276	0	value = NULL;
277	0	else
278	0	value = args_string(args, 1);
279	0	if (value != NULL && args_has(args, 'F')) {
280	0	expanded = format_single_from_target(item, value);
281	0	value = expanded;
282	0	}
283
284		/* Get the scope and table for the option .*/
285	0	scope = options_scope_from_name(args, window, name, target, &oo,
286	0	&cause);
287	0	if (scope == OPTIONS_TABLE_NONE) {
288	0	if (args_has(args, 'q'))
289	0	goto out;
290	0	cmdq_error(item, "%s", cause);
291	0	free(cause);
292	0	goto fail;
293	0	}
294	0	o = options_get_only(oo, name);
295	0	parent = options_get(oo, name);
296
297		/* Check that array options and keys match up. */
298	0	if (array_key != NULL && (*name == '@' \|\| !options_is_array(parent))) {
299	0	cmdq_error(item, "not an array: %s", argument);
300	0	goto fail;
301	0	}
302
303		/* With -o, check this option is not already set. */
304	0	if (!args_has(args, 'u') && args_has(args, 'o')) {
305	0	if (array_key == NULL)
306	0	already = (o != NULL);
307	0	else {
308	0	if (o == NULL)
309	0	already = 0;
310	0	else if (options_array_get(o, array_key) != NULL)
311	0	already = 1;
312	0	else
313	0	already = 0;
314	0	}
315	0	if (already) {
316	0	if (args_has(args, 'q'))
317	0	goto out;
318	0	cmdq_error(item, "already set: %s", argument);
319	0	goto fail;
320	0	}
321	0	}
322
323		/* Change the option. */
324	0	if (args_has(args, 'U') && scope == OPTIONS_TABLE_WINDOW) {
325	0	TAILQ_FOREACH(loop, &target->w->panes, entry) {
326	0	po = options_get_only(loop->options, name);
327	0	if (po == NULL)
328	0	continue;
329	0	if (options_remove_or_default(po, array_key,
330	0	&cause) != 0) {
331	0	cmdq_error(item, "%s", cause);
332	0	free(cause);
333	0	goto fail;
334	0	}
335	0	}
336	0	}
337	0	if (args_has(args, 'u') \|\| args_has(args, 'U')) {
338	0	if (o == NULL)
339	0	goto out;
340	0	if (options_remove_or_default(o, array_key, &cause) != 0) {
341	0	cmdq_error(item, "%s", cause);
342	0	free(cause);
343	0	goto fail;
344	0	}
345	0	} else if (*name == '@') {
346	0	if (value == NULL) {
347	0	cmdq_error(item, "empty value");
348	0	goto fail;
349	0	}
350	0	options_set_string(oo, name, append, "%s", value);
351	0	if (cmd_get_entry(self) == &cmd_set_hook_entry)
352	0	hooks_add_event(name);
353	0	} else if (array_key == NULL && !options_is_array(parent)) {
354	0	error = options_from_string(oo, options_table_entry(parent),
355	0	options_table_entry(parent)->name, value,
356	0	args_has(args, 'a'), &cause);
357	0	if (error != 0) {
358	0	cmdq_error(item, "%s", cause);
359	0	free(cause);
360	0	goto fail;
361	0	}
362	0	} else {
363	0	if (value == NULL) {
364	0	cmdq_error(item, "empty value");
365	0	goto fail;
366	0	}
367	0	if (o == NULL)
368	0	o = options_empty(oo, options_table_entry(parent));
369	0	if (array_key == NULL) {
370	0	if (!append)
371	0	options_array_clear(o);
372	0	if (options_array_assign(o, value, &cause) != 0) {
373	0	cmdq_error(item, "%s", cause);
374	0	free(cause);
375	0	goto fail;
376	0	}
377	0	} else if (options_array_set(o, array_key, value, append,
378	0	&cause) != 0) {
379	0	cmdq_error(item, "%s", cause);
380	0	free(cause);
381	0	goto fail;
382	0	}
383	0	}
384
385	0	options_push_changes(name);
386
387	0	out:
388	0	free(argument);
389	0	free(expanded);
390	0	free(name);
391	0	free(array_key);
392	0	return (CMD_RETURN_NORMAL);
393
394	0	fail:
395	0	free(argument);
396	0	free(expanded);
397	0	free(name);
398	0	free(array_key);
399	0	return (CMD_RETURN_ERROR);
400	0	}