GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/tmux/cmd-find.c Lines: 0 600 0.0 %
Date: 2017-11-13 Branches: 0 498 0.0 %

Line Branch Exec Source
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/* $OpenBSD: cmd-find.c,v 1.57 2017/08/30 10:33:57 nicm Exp $ */
2
3
/*
4
 * Copyright (c) 2015 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 <fnmatch.h>
22
#include <limits.h>
23
#include <stdlib.h>
24
#include <string.h>
25
#include <paths.h>
26
#include <unistd.h>
27
28
#include "tmux.h"
29
30
static int	cmd_find_session_better(struct session *, struct session *,
31
		    int);
32
static struct session *cmd_find_best_session(struct session **, u_int, int);
33
static int	cmd_find_best_session_with_window(struct cmd_find_state *);
34
static int	cmd_find_best_winlink_with_window(struct cmd_find_state *);
35
36
static const char *cmd_find_map_table(const char *[][2], const char *);
37
38
static int	cmd_find_get_session(struct cmd_find_state *, const char *);
39
static int	cmd_find_get_window(struct cmd_find_state *, const char *, int);
40
static int	cmd_find_get_window_with_session(struct cmd_find_state *,
41
		    const char *);
42
static int	cmd_find_get_pane(struct cmd_find_state *, const char *, int);
43
static int	cmd_find_get_pane_with_session(struct cmd_find_state *,
44
		    const char *);
45
static int	cmd_find_get_pane_with_window(struct cmd_find_state *,
46
		    const char *);
47
48
static const char *cmd_find_session_table[][2] = {
49
	{ NULL, NULL }
50
};
51
static const char *cmd_find_window_table[][2] = {
52
	{ "{start}", "^" },
53
	{ "{last}", "!" },
54
	{ "{end}", "$" },
55
	{ "{next}", "+" },
56
	{ "{previous}", "-" },
57
	{ NULL, NULL }
58
};
59
static const char *cmd_find_pane_table[][2] = {
60
	{ "{last}", "!" },
61
	{ "{next}", "+" },
62
	{ "{previous}", "-" },
63
	{ "{top}", "top" },
64
	{ "{bottom}", "bottom" },
65
	{ "{left}", "left" },
66
	{ "{right}", "right" },
67
	{ "{top-left}", "top-left" },
68
	{ "{top-right}", "top-right" },
69
	{ "{bottom-left}", "bottom-left" },
70
	{ "{bottom-right}", "bottom-right" },
71
	{ "{up-of}", "{up-of}" },
72
	{ "{down-of}", "{down-of}" },
73
	{ "{left-of}", "{left-of}" },
74
	{ "{right-of}", "{right-of}" },
75
	{ NULL, NULL }
76
};
77
78
/* Get session from TMUX if present. */
79
static struct session *
80
cmd_find_try_TMUX(struct client *c)
81
{
82
	struct environ_entry	*envent;
83
	char			 tmp[256];
84
	long long		 pid;
85
	u_int			 session;
86
87
	envent = environ_find(c->environ, "TMUX");
88
	if (envent == NULL)
89
		return (NULL);
90
91
	if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
92
		return (NULL);
93
	if (pid != getpid())
94
		return (NULL);
95
	log_debug("client %p TMUX %s (session @%u)", c, envent->value, session);
96
	return (session_find_by_id(session));
97
}
98
99
/* Find pane containing client if any. */
100
static struct window_pane *
101
cmd_find_inside_pane(struct client *c)
102
{
103
	struct window_pane	*wp;
104
105
	if (c == NULL)
106
		return (NULL);
107
108
	RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
109
		if (strcmp(wp->tty, c->ttyname) == 0)
110
			break;
111
	}
112
	return (wp);
113
}
114
115
/* Is this client better? */
116
static int
117
cmd_find_client_better(struct client *c, struct client *than)
118
{
119
	if (than == NULL)
120
		return (1);
121
	return (timercmp(&c->activity_time, &than->activity_time, >));
122
}
123
124
/* Find best client for session. */
125
static struct client *
126
cmd_find_best_client(struct session *s)
127
{
128
	struct client	*c_loop, *c;
129
130
	if (s->flags & SESSION_UNATTACHED)
131
		s = NULL;
132
133
	c = NULL;
134
	TAILQ_FOREACH(c_loop, &clients, entry) {
135
		if (c_loop->session == NULL)
136
			continue;
137
		if (s != NULL && c_loop->session != s)
138
			continue;
139
		if (cmd_find_client_better(c_loop, c))
140
			c = c_loop;
141
	}
142
	return (c);
143
}
144
145
/* Is this session better? */
146
static int
147
cmd_find_session_better(struct session *s, struct session *than, int flags)
148
{
149
	int	attached;
150
151
	if (than == NULL)
152
		return (1);
153
	if (flags & CMD_FIND_PREFER_UNATTACHED) {
154
		attached = (~than->flags & SESSION_UNATTACHED);
155
		if (attached && (s->flags & SESSION_UNATTACHED))
156
			return (1);
157
		else if (!attached && (~s->flags & SESSION_UNATTACHED))
158
			return (0);
159
	}
160
	return (timercmp(&s->activity_time, &than->activity_time, >));
161
}
162
163
/* Find best session from a list, or all if list is NULL. */
164
static struct session *
165
cmd_find_best_session(struct session **slist, u_int ssize, int flags)
166
{
167
	struct session	 *s_loop, *s;
168
	u_int		  i;
169
170
	s = NULL;
171
	if (slist != NULL) {
172
		for (i = 0; i < ssize; i++) {
173
			if (cmd_find_session_better(slist[i], s, flags))
174
				s = slist[i];
175
		}
176
	} else {
177
		RB_FOREACH(s_loop, sessions, &sessions) {
178
			if (cmd_find_session_better(s_loop, s, flags))
179
				s = s_loop;
180
		}
181
	}
182
	return (s);
183
}
184
185
/* Find best session and winlink for window. */
186
static int
187
cmd_find_best_session_with_window(struct cmd_find_state *fs)
188
{
189
	struct session	**slist = NULL;
190
	u_int		  ssize;
191
	struct session	 *s;
192
193
	ssize = 0;
194
	RB_FOREACH(s, sessions, &sessions) {
195
		if (!session_has(s, fs->w))
196
			continue;
197
		slist = xreallocarray(slist, ssize + 1, sizeof *slist);
198
		slist[ssize++] = s;
199
	}
200
	if (ssize == 0)
201
		goto fail;
202
	fs->s = cmd_find_best_session(slist, ssize, fs->flags);
203
	if (fs->s == NULL)
204
		goto fail;
205
	free(slist);
206
	return (cmd_find_best_winlink_with_window(fs));
207
208
fail:
209
	free(slist);
210
	return (-1);
211
}
212
213
/*
214
 * Find the best winlink for a window (the current if it contains the pane,
215
 * otherwise the first).
216
 */
217
static int
218
cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
219
{
220
	struct winlink	 *wl, *wl_loop;
221
222
	wl = NULL;
223
	if (fs->s->curw != NULL && fs->s->curw->window == fs->w)
224
		wl = fs->s->curw;
225
	else {
226
		RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
227
			if (wl_loop->window == fs->w) {
228
				wl = wl_loop;
229
				break;
230
			}
231
		}
232
	}
233
	if (wl == NULL)
234
		return (-1);
235
	fs->wl = wl;
236
	fs->idx = fs->wl->idx;
237
	return (0);
238
}
239
240
/* Maps string in table. */
241
static const char *
242
cmd_find_map_table(const char *table[][2], const char *s)
243
{
244
	u_int	i;
245
246
	for (i = 0; table[i][0] != NULL; i++) {
247
		if (strcmp(s, table[i][0]) == 0)
248
			return (table[i][1]);
249
	}
250
	return (s);
251
}
252
253
/* Find session from string. Fills in s. */
254
static int
255
cmd_find_get_session(struct cmd_find_state *fs, const char *session)
256
{
257
	struct session	*s, *s_loop;
258
	struct client	*c;
259
260
	log_debug("%s: %s", __func__, session);
261
262
	/* Check for session ids starting with $. */
263
	if (*session == '$') {
264
		fs->s = session_find_by_id_str(session);
265
		if (fs->s == NULL)
266
			return (-1);
267
		return (0);
268
	}
269
270
	/* Look for exactly this session. */
271
	fs->s = session_find(session);
272
	if (fs->s != NULL)
273
		return (0);
274
275
	/* Look for as a client. */
276
	c = cmd_find_client(NULL, session, 1);
277
	if (c != NULL && c->session != NULL) {
278
		fs->s = c->session;
279
		return (0);
280
	}
281
282
	/* Stop now if exact only. */
283
	if (fs->flags & CMD_FIND_EXACT_SESSION)
284
		return (-1);
285
286
	/* Otherwise look for prefix. */
287
	s = NULL;
288
	RB_FOREACH(s_loop, sessions, &sessions) {
289
		if (strncmp(session, s_loop->name, strlen(session)) == 0) {
290
			if (s != NULL)
291
				return (-1);
292
			s = s_loop;
293
		}
294
	}
295
	if (s != NULL) {
296
		fs->s = s;
297
		return (0);
298
	}
299
300
	/* Then as a pattern. */
301
	s = NULL;
302
	RB_FOREACH(s_loop, sessions, &sessions) {
303
		if (fnmatch(session, s_loop->name, 0) == 0) {
304
			if (s != NULL)
305
				return (-1);
306
			s = s_loop;
307
		}
308
	}
309
	if (s != NULL) {
310
		fs->s = s;
311
		return (0);
312
	}
313
314
	return (-1);
315
}
316
317
/* Find window from string. Fills in s, wl, w. */
318
static int
319
cmd_find_get_window(struct cmd_find_state *fs, const char *window, int only)
320
{
321
	log_debug("%s: %s", __func__, window);
322
323
	/* Check for window ids starting with @. */
324
	if (*window == '@') {
325
		fs->w = window_find_by_id_str(window);
326
		if (fs->w == NULL)
327
			return (-1);
328
		return (cmd_find_best_session_with_window(fs));
329
	}
330
331
	/* Not a window id, so use the current session. */
332
	fs->s = fs->current->s;
333
334
	/* We now only need to find the winlink in this session. */
335
	if (cmd_find_get_window_with_session(fs, window) == 0)
336
		return (0);
337
338
	/* Otherwise try as a session itself. */
339
	if (!only && cmd_find_get_session(fs, window) == 0) {
340
		fs->wl = fs->s->curw;
341
		fs->w = fs->wl->window;
342
		if (~fs->flags & CMD_FIND_WINDOW_INDEX)
343
			fs->idx = fs->wl->idx;
344
		return (0);
345
	}
346
347
	return (-1);
348
}
349
350
/*
351
 * Find window from string, assuming it is in given session. Needs s, fills in
352
 * wl and w.
353
 */
354
static int
355
cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
356
{
357
	struct winlink	*wl;
358
	const char	*errstr;
359
	int		 idx, n, exact;
360
	struct session	*s;
361
362
	log_debug("%s: %s", __func__, window);
363
	exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
364
365
	/*
366
	 * Start with the current window as the default. So if only an index is
367
	 * found, the window will be the current.
368
	 */
369
	fs->wl = fs->s->curw;
370
	fs->w = fs->wl->window;
371
372
	/* Check for window ids starting with @. */
373
	if (*window == '@') {
374
		fs->w = window_find_by_id_str(window);
375
		if (fs->w == NULL || !session_has(fs->s, fs->w))
376
			return (-1);
377
		return (cmd_find_best_winlink_with_window(fs));
378
	}
379
380
	/* Try as an offset. */
381
	if (!exact && (window[0] == '+' || window[0] == '-')) {
382
		if (window[1] != '\0')
383
			n = strtonum(window + 1, 1, INT_MAX, NULL);
384
		else
385
			n = 1;
386
		s = fs->s;
387
		if (fs->flags & CMD_FIND_WINDOW_INDEX) {
388
			if (window[0] == '+') {
389
				if (INT_MAX - s->curw->idx < n)
390
					return (-1);
391
				fs->idx = s->curw->idx + n;
392
			} else {
393
				if (n < s->curw->idx)
394
					return (-1);
395
				fs->idx = s->curw->idx - n;
396
			}
397
			return (0);
398
		}
399
		if (window[0] == '+')
400
			fs->wl = winlink_next_by_number(s->curw, s, n);
401
		else
402
			fs->wl = winlink_previous_by_number(s->curw, s, n);
403
		if (fs->wl != NULL) {
404
			fs->idx = fs->wl->idx;
405
			fs->w = fs->wl->window;
406
			return (0);
407
		}
408
	}
409
410
	/* Try special characters. */
411
	if (!exact) {
412
		if (strcmp(window, "!") == 0) {
413
			fs->wl = TAILQ_FIRST(&fs->s->lastw);
414
			if (fs->wl == NULL)
415
				return (-1);
416
			fs->idx = fs->wl->idx;
417
			fs->w = fs->wl->window;
418
			return (0);
419
		} else if (strcmp(window, "^") == 0) {
420
			fs->wl = RB_MIN(winlinks, &fs->s->windows);
421
			if (fs->wl == NULL)
422
				return (-1);
423
			fs->idx = fs->wl->idx;
424
			fs->w = fs->wl->window;
425
			return (0);
426
		} else if (strcmp(window, "$") == 0) {
427
			fs->wl = RB_MAX(winlinks, &fs->s->windows);
428
			if (fs->wl == NULL)
429
				return (-1);
430
			fs->idx = fs->wl->idx;
431
			fs->w = fs->wl->window;
432
			return (0);
433
		}
434
	}
435
436
	/* First see if this is a valid window index in this session. */
437
	if (window[0] != '+' && window[0] != '-') {
438
		idx = strtonum(window, 0, INT_MAX, &errstr);
439
		if (errstr == NULL) {
440
			if (fs->flags & CMD_FIND_WINDOW_INDEX) {
441
				fs->idx = idx;
442
				return (0);
443
			}
444
			fs->wl = winlink_find_by_index(&fs->s->windows, idx);
445
			if (fs->wl != NULL) {
446
				fs->w = fs->wl->window;
447
				return (0);
448
			}
449
		}
450
	}
451
452
	/* Look for exact matches, error if more than one. */
453
	fs->wl = NULL;
454
	RB_FOREACH(wl, winlinks, &fs->s->windows) {
455
		if (strcmp(window, wl->window->name) == 0) {
456
			if (fs->wl != NULL)
457
				return (-1);
458
			fs->wl = wl;
459
		}
460
	}
461
	if (fs->wl != NULL) {
462
		fs->idx = fs->wl->idx;
463
		fs->w = fs->wl->window;
464
		return (0);
465
	}
466
467
	/* Stop now if exact only. */
468
	if (exact)
469
		return (-1);
470
471
	/* Try as the start of a window name, error if multiple. */
472
	fs->wl = NULL;
473
	RB_FOREACH(wl, winlinks, &fs->s->windows) {
474
		if (strncmp(window, wl->window->name, strlen(window)) == 0) {
475
			if (fs->wl != NULL)
476
				return (-1);
477
			fs->wl = wl;
478
		}
479
	}
480
	if (fs->wl != NULL) {
481
		fs->idx = fs->wl->idx;
482
		fs->w = fs->wl->window;
483
		return (0);
484
	}
485
486
	/* Now look for pattern matches, again error if multiple. */
487
	fs->wl = NULL;
488
	RB_FOREACH(wl, winlinks, &fs->s->windows) {
489
		if (fnmatch(window, wl->window->name, 0) == 0) {
490
			if (fs->wl != NULL)
491
				return (-1);
492
			fs->wl = wl;
493
		}
494
	}
495
	if (fs->wl != NULL) {
496
		fs->idx = fs->wl->idx;
497
		fs->w = fs->wl->window;
498
		return (0);
499
	}
500
501
	return (-1);
502
}
503
504
/* Find pane from string. Fills in s, wl, w, wp. */
505
static int
506
cmd_find_get_pane(struct cmd_find_state *fs, const char *pane, int only)
507
{
508
	log_debug("%s: %s", __func__, pane);
509
510
	/* Check for pane ids starting with %. */
511
	if (*pane == '%') {
512
		fs->wp = window_pane_find_by_id_str(pane);
513
		if (fs->wp == NULL)
514
			return (-1);
515
		fs->w = fs->wp->window;
516
		return (cmd_find_best_session_with_window(fs));
517
	}
518
519
	/* Not a pane id, so try the current session and window. */
520
	fs->s = fs->current->s;
521
	fs->wl = fs->current->wl;
522
	fs->idx = fs->current->idx;
523
	fs->w = fs->current->w;
524
525
	/* We now only need to find the pane in this window. */
526
	if (cmd_find_get_pane_with_window(fs, pane) == 0)
527
		return (0);
528
529
	/* Otherwise try as a window itself (this will also try as session). */
530
	if (!only && cmd_find_get_window(fs, pane, 0) == 0) {
531
		fs->wp = fs->w->active;
532
		return (0);
533
	}
534
535
	return (-1);
536
}
537
538
/*
539
 * Find pane from string, assuming it is in given session. Needs s, fills in wl
540
 * and w and wp.
541
 */
542
static int
543
cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
544
{
545
	log_debug("%s: %s", __func__, pane);
546
547
	/* Check for pane ids starting with %. */
548
	if (*pane == '%') {
549
		fs->wp = window_pane_find_by_id_str(pane);
550
		if (fs->wp == NULL)
551
			return (-1);
552
		fs->w = fs->wp->window;
553
		return (cmd_find_best_winlink_with_window(fs));
554
	}
555
556
	/* Otherwise use the current window. */
557
	fs->wl = fs->s->curw;
558
	fs->idx = fs->wl->idx;
559
	fs->w = fs->wl->window;
560
561
	/* Now we just need to look up the pane. */
562
	return (cmd_find_get_pane_with_window(fs, pane));
563
}
564
565
/*
566
 * Find pane from string, assuming it is in the given window. Needs w, fills in
567
 * wp.
568
 */
569
static int
570
cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
571
{
572
	const char		*errstr;
573
	int			 idx;
574
	struct window_pane	*wp;
575
	u_int			 n;
576
577
	log_debug("%s: %s", __func__, pane);
578
579
	/* Check for pane ids starting with %. */
580
	if (*pane == '%') {
581
		fs->wp = window_pane_find_by_id_str(pane);
582
		if (fs->wp == NULL)
583
			return (-1);
584
		if (fs->wp->window != fs->w)
585
			return (-1);
586
		return (0);
587
	}
588
589
	/* Try special characters. */
590
	if (strcmp(pane, "!") == 0) {
591
		if (fs->w->last == NULL)
592
			return (-1);
593
		fs->wp = fs->w->last;
594
		if (fs->wp == NULL)
595
			return (-1);
596
		return (0);
597
	} else if (strcmp(pane, "{up-of}") == 0) {
598
		fs->wp = window_pane_find_up(fs->w->active);
599
		if (fs->wp == NULL)
600
			return (-1);
601
		return (0);
602
	} else if (strcmp(pane, "{down-of}") == 0) {
603
		fs->wp = window_pane_find_down(fs->w->active);
604
		if (fs->wp == NULL)
605
			return (-1);
606
		return (0);
607
	} else if (strcmp(pane, "{left-of}") == 0) {
608
		fs->wp = window_pane_find_left(fs->w->active);
609
		if (fs->wp == NULL)
610
			return (-1);
611
		return (0);
612
	} else if (strcmp(pane, "{right-of}") == 0) {
613
		fs->wp = window_pane_find_right(fs->w->active);
614
		if (fs->wp == NULL)
615
			return (-1);
616
		return (0);
617
	}
618
619
	/* Try as an offset. */
620
	if (pane[0] == '+' || pane[0] == '-') {
621
		if (pane[1] != '\0')
622
			n = strtonum(pane + 1, 1, INT_MAX, NULL);
623
		else
624
			n = 1;
625
		wp = fs->w->active;
626
		if (pane[0] == '+')
627
			fs->wp = window_pane_next_by_number(fs->w, wp, n);
628
		else
629
			fs->wp = window_pane_previous_by_number(fs->w, wp, n);
630
		if (fs->wp != NULL)
631
			return (0);
632
	}
633
634
	/* Get pane by index. */
635
	idx = strtonum(pane, 0, INT_MAX, &errstr);
636
	if (errstr == NULL) {
637
		fs->wp = window_pane_at_index(fs->w, idx);
638
		if (fs->wp != NULL)
639
			return (0);
640
	}
641
642
	/* Try as a description. */
643
	fs->wp = window_find_string(fs->w, pane);
644
	if (fs->wp != NULL)
645
		return (0);
646
647
	return (-1);
648
}
649
650
/* Clear state. */
651
void
652
cmd_find_clear_state(struct cmd_find_state *fs, int flags)
653
{
654
	memset(fs, 0, sizeof *fs);
655
656
	fs->flags = flags;
657
658
	fs->idx = -1;
659
}
660
661
/* Check if state is empty. */
662
int
663
cmd_find_empty_state(struct cmd_find_state *fs)
664
{
665
	if (fs->s == NULL && fs->wl == NULL && fs->w == NULL && fs->wp == NULL)
666
		return (1);
667
	return (0);
668
}
669
670
/* Check if a state if valid. */
671
int
672
cmd_find_valid_state(struct cmd_find_state *fs)
673
{
674
	struct winlink	*wl;
675
676
	if (fs->s == NULL || fs->wl == NULL || fs->w == NULL || fs->wp == NULL)
677
		return (0);
678
679
	if (!session_alive(fs->s))
680
		return (0);
681
682
	RB_FOREACH(wl, winlinks, &fs->s->windows) {
683
		if (wl->window == fs->w && wl == fs->wl)
684
			break;
685
	}
686
	if (wl == NULL)
687
		return (0);
688
689
	if (fs->w != fs->wl->window)
690
		return (0);
691
692
	return (window_has_pane(fs->w, fs->wp));
693
}
694
695
/* Copy a state. */
696
void
697
cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
698
{
699
	dst->s = src->s;
700
	dst->wl = src->wl;
701
	dst->idx = src->idx;
702
	dst->w = src->w;
703
	dst->wp = src->wp;
704
}
705
706
/* Log the result. */
707
void
708
cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
709
{
710
	if (fs->s != NULL)
711
		log_debug("%s: s=$%u", prefix, fs->s->id);
712
	else
713
		log_debug("%s: s=none", prefix);
714
	if (fs->wl != NULL) {
715
		log_debug("%s: wl=%u %d w=@%u %s", prefix, fs->wl->idx,
716
		    fs->wl->window == fs->w, fs->w->id, fs->w->name);
717
	} else
718
		log_debug("%s: wl=none", prefix);
719
	if (fs->wp != NULL)
720
		log_debug("%s: wp=%%%u", prefix, fs->wp->id);
721
	else
722
		log_debug("%s: wp=none", prefix);
723
	if (fs->idx != -1)
724
		log_debug("%s: idx=%d", prefix, fs->idx);
725
	else
726
		log_debug("%s: idx=none", prefix);
727
}
728
729
/* Find state from a session. */
730
void
731
cmd_find_from_session(struct cmd_find_state *fs, struct session *s, int flags)
732
{
733
	cmd_find_clear_state(fs, flags);
734
735
	fs->s = s;
736
	fs->wl = fs->s->curw;
737
	fs->w = fs->wl->window;
738
	fs->wp = fs->w->active;
739
740
	cmd_find_log_state(__func__, fs);
741
}
742
743
/* Find state from a winlink. */
744
void
745
cmd_find_from_winlink(struct cmd_find_state *fs, struct winlink *wl, int flags)
746
{
747
	cmd_find_clear_state(fs, flags);
748
749
	fs->s = wl->session;
750
	fs->wl = wl;
751
	fs->w = wl->window;
752
	fs->wp = wl->window->active;
753
754
	cmd_find_log_state(__func__, fs);
755
}
756
757
/* Find state from a session and window. */
758
int
759
cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
760
    struct window *w, int flags)
761
{
762
	cmd_find_clear_state(fs, flags);
763
764
	fs->s = s;
765
	fs->w = w;
766
	if (cmd_find_best_winlink_with_window(fs) != 0) {
767
		cmd_find_clear_state(fs, flags);
768
		return (-1);
769
	}
770
	fs->wp = fs->w->active;
771
772
	cmd_find_log_state(__func__, fs);
773
	return (0);
774
}
775
776
/* Find state from a window. */
777
int
778
cmd_find_from_window(struct cmd_find_state *fs, struct window *w, int flags)
779
{
780
	cmd_find_clear_state(fs, flags);
781
782
	fs->w = w;
783
	if (cmd_find_best_session_with_window(fs) != 0) {
784
		cmd_find_clear_state(fs, flags);
785
		return (-1);
786
	}
787
	if (cmd_find_best_winlink_with_window(fs) != 0) {
788
		cmd_find_clear_state(fs, flags);
789
		return (-1);
790
	}
791
	fs->wp = fs->w->active;
792
793
	cmd_find_log_state(__func__, fs);
794
	return (0);
795
}
796
797
/* Find state from a winlink and pane. */
798
void
799
cmd_find_from_winlink_pane(struct cmd_find_state *fs, struct winlink *wl,
800
    struct window_pane *wp, int flags)
801
{
802
	cmd_find_clear_state(fs, flags);
803
804
	fs->s = wl->session;
805
	fs->wl = wl;
806
	fs->idx = fs->wl->idx;
807
	fs->w = fs->wl->window;
808
	fs->wp = wp;
809
810
	cmd_find_log_state(__func__, fs);
811
}
812
813
/* Find state from a pane. */
814
int
815
cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp, int flags)
816
{
817
	if (cmd_find_from_window(fs, wp->window, flags) != 0)
818
		return (-1);
819
	fs->wp = wp;
820
821
	cmd_find_log_state(__func__, fs);
822
	return (0);
823
}
824
825
/* Find state from nothing. */
826
int
827
cmd_find_from_nothing(struct cmd_find_state *fs, int flags)
828
{
829
	cmd_find_clear_state(fs, flags);
830
831
	fs->s = cmd_find_best_session(NULL, 0, flags);
832
	if (fs->s == NULL) {
833
		cmd_find_clear_state(fs, flags);
834
		return (-1);
835
	}
836
	fs->wl = fs->s->curw;
837
	fs->idx = fs->wl->idx;
838
	fs->w = fs->wl->window;
839
	fs->wp = fs->w->active;
840
841
	cmd_find_log_state(__func__, fs);
842
	return (0);
843
}
844
845
/* Find state from mouse. */
846
int
847
cmd_find_from_mouse(struct cmd_find_state *fs, struct mouse_event *m, int flags)
848
{
849
	cmd_find_clear_state(fs, flags);
850
851
	if (!m->valid)
852
		return (-1);
853
854
	fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
855
	if (fs->wp == NULL) {
856
		cmd_find_clear_state(fs, flags);
857
		return (-1);
858
	}
859
	fs->w = fs->wl->window;
860
861
	cmd_find_log_state(__func__, fs);
862
	return (0);
863
}
864
865
/* Find state from client. */
866
int
867
cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
868
{
869
	struct session		*s;
870
	struct winlink		*wl;
871
	struct window_pane	*wp;
872
873
	/* If no client, treat as from nothing. */
874
	if (c == NULL)
875
		return (cmd_find_from_nothing(fs, flags));
876
877
	/* If this is an attached client, all done. */
878
	if (c->session != NULL) {
879
		cmd_find_from_session(fs, c->session, flags);
880
		return (0);
881
	}
882
	cmd_find_clear_state(fs, flags);
883
884
	/*
885
	 * If this is an unattached client running in a pane, we can use that
886
	 * to limit the list of sessions to those containing that pane.
887
	 */
888
	wp = cmd_find_inside_pane(c);
889
	if (wp == NULL)
890
		goto unknown_pane;
891
892
	/* If we have a session in TMUX, see if it has this pane. */
893
	s = cmd_find_try_TMUX(c);
894
	if (s != NULL) {
895
		RB_FOREACH(wl, winlinks, &s->windows) {
896
			if (window_has_pane(wl->window, wp))
897
				break;
898
		}
899
		if (wl != NULL) {
900
			fs->s = s;
901
			fs->wl = s->curw; /* use current session */
902
			fs->w = fs->wl->window;
903
			fs->wp = fs->w->active; /* use active pane */
904
905
			cmd_find_log_state(__func__, fs);
906
			return (0);
907
		}
908
	}
909
910
	/*
911
	 * Don't have a session, or it doesn't have this pane. Try all
912
	 * sessions.
913
	 */
914
	fs->w = wp->window;
915
	if (cmd_find_best_session_with_window(fs) != 0) {
916
		if (wp != NULL) {
917
			/*
918
			 * The window may have been destroyed but the pane
919
			 * still on all_window_panes due to something else
920
			 * holding a reference.
921
			 */
922
			goto unknown_pane;
923
		}
924
		cmd_find_clear_state(fs, 0);
925
		return (-1);
926
	}
927
	fs->wl = fs->s->curw;
928
	fs->w = fs->wl->window;
929
	fs->wp = fs->w->active; /* use active pane */
930
931
	cmd_find_log_state(__func__, fs);
932
	return (0);
933
934
unknown_pane:
935
	/*
936
	 * We're not running in a known pane, but maybe this client has TMUX
937
	 * in the environment. That'd give us a session.
938
	 */
939
	s = cmd_find_try_TMUX(c);
940
	if (s != NULL) {
941
		cmd_find_from_session(fs, s, flags);
942
		return (0);
943
	}
944
945
	/* Otherwise we need to guess. */
946
	return (cmd_find_from_nothing(fs, flags));
947
}
948
949
/*
950
 * Split target into pieces and resolve for the given type. Fills in the given
951
 * state. Returns 0 on success or -1 on error.
952
 */
953
int
954
cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
955
    const char *target, enum cmd_find_type type, int flags)
956
{
957
	struct mouse_event	*m;
958
	struct cmd_find_state	 current;
959
	char			*colon, *period, *copy = NULL;
960
	const char		*session, *window, *pane, *s;
961
	int			 window_only = 0, pane_only = 0;
962
963
	/* Can fail flag implies quiet. */
964
	if (flags & CMD_FIND_CANFAIL)
965
		flags |= CMD_FIND_QUIET;
966
967
	/* Log the arguments. */
968
	if (type == CMD_FIND_PANE)
969
		s = "pane";
970
	else if (type == CMD_FIND_WINDOW)
971
		s = "window";
972
	else if (type == CMD_FIND_SESSION)
973
		s = "session";
974
	else
975
		s = "unknown";
976
	if (target == NULL)
977
		log_debug("%s: target none, type %s", __func__, s);
978
	else
979
		log_debug("%s: target %s, type %s", __func__, target, s);
980
	log_debug("%s: item %p, flags %#x", __func__, item, flags);
981
982
	/* Clear new state. */
983
	cmd_find_clear_state(fs, flags);
984
985
	/* Find current state. */
986
	if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
987
		fs->current = &marked_pane;
988
		log_debug("%s: current is marked pane", __func__);
989
	} else if (cmd_find_valid_state(&item->shared->current)) {
990
		fs->current = &item->shared->current;
991
		log_debug("%s: current is from queue", __func__);
992
	} else if (cmd_find_from_client(&current, item->client, flags) == 0) {
993
		fs->current = &current;
994
		log_debug("%s: current is from client", __func__);
995
	} else {
996
		if (~flags & CMD_FIND_QUIET)
997
			cmdq_error(item, "no current target");
998
		goto error;
999
	}
1000
	if (!cmd_find_valid_state(fs->current))
1001
		fatalx("invalid current find state");
1002
1003
	/* An empty or NULL target is the current. */
1004
	if (target == NULL || *target == '\0')
1005
		goto current;
1006
1007
	/* Mouse target is a plain = or {mouse}. */
1008
	if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
1009
		m = &item->shared->mouse;
1010
		switch (type) {
1011
		case CMD_FIND_PANE:
1012
			fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
1013
			if (fs->wp != NULL)
1014
				fs->w = fs->wl->window;
1015
			break;
1016
		case CMD_FIND_WINDOW:
1017
		case CMD_FIND_SESSION:
1018
			fs->wl = cmd_mouse_window(m, &fs->s);
1019
			if (fs->wl != NULL) {
1020
				fs->w = fs->wl->window;
1021
				fs->wp = fs->w->active;
1022
			}
1023
			break;
1024
		}
1025
		if (fs->wp == NULL) {
1026
			if (~flags & CMD_FIND_QUIET)
1027
				cmdq_error(item, "no mouse target");
1028
			goto error;
1029
		}
1030
		goto found;
1031
	}
1032
1033
	/* Marked target is a plain ~ or {marked}. */
1034
	if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
1035
		if (!server_check_marked()) {
1036
			if (~flags & CMD_FIND_QUIET)
1037
				cmdq_error(item, "no marked target");
1038
			goto error;
1039
		}
1040
		cmd_find_copy_state(fs, &marked_pane);
1041
		goto found;
1042
	}
1043
1044
	/* Find separators if they exist. */
1045
	copy = xstrdup(target);
1046
	colon = strchr(copy, ':');
1047
	if (colon != NULL)
1048
		*colon++ = '\0';
1049
	if (colon == NULL)
1050
		period = strchr(copy, '.');
1051
	else
1052
		period = strchr(colon, '.');
1053
	if (period != NULL)
1054
		*period++ = '\0';
1055
1056
	/* Set session, window and pane parts. */
1057
	session = window = pane = NULL;
1058
	if (colon != NULL && period != NULL) {
1059
		session = copy;
1060
		window = colon;
1061
		window_only = 1;
1062
		pane = period;
1063
		pane_only = 1;
1064
	} else if (colon != NULL && period == NULL) {
1065
		session = copy;
1066
		window = colon;
1067
		window_only = 1;
1068
	} else if (colon == NULL && period != NULL) {
1069
		window = copy;
1070
		pane = period;
1071
		pane_only = 1;
1072
	} else {
1073
		if (*copy == '$')
1074
			session = copy;
1075
		else if (*copy == '@')
1076
			window = copy;
1077
		else if (*copy == '%')
1078
			pane = copy;
1079
		else {
1080
			switch (type) {
1081
			case CMD_FIND_SESSION:
1082
				session = copy;
1083
				break;
1084
			case CMD_FIND_WINDOW:
1085
				window = copy;
1086
				break;
1087
			case CMD_FIND_PANE:
1088
				pane = copy;
1089
				break;
1090
			}
1091
		}
1092
	}
1093
1094
	/* Set exact match flags. */
1095
	if (session != NULL && *session == '=') {
1096
		session++;
1097
		fs->flags |= CMD_FIND_EXACT_SESSION;
1098
	}
1099
	if (window != NULL && *window == '=') {
1100
		window++;
1101
		fs->flags |= CMD_FIND_EXACT_WINDOW;
1102
	}
1103
1104
	/* Empty is the same as NULL. */
1105
	if (session != NULL && *session == '\0')
1106
		session = NULL;
1107
	if (window != NULL && *window == '\0')
1108
		window = NULL;
1109
	if (pane != NULL && *pane == '\0')
1110
		pane = NULL;
1111
1112
	/* Map though conversion table. */
1113
	if (session != NULL)
1114
		session = cmd_find_map_table(cmd_find_session_table, session);
1115
	if (window != NULL)
1116
		window = cmd_find_map_table(cmd_find_window_table, window);
1117
	if (pane != NULL)
1118
		pane = cmd_find_map_table(cmd_find_pane_table, pane);
1119
1120
	log_debug("%s: target %s (flags %#x): session=%s, window=%s, pane=%s",
1121
	    __func__, target, flags, session == NULL ? "none" : session,
1122
	    window == NULL ? "none" : window, pane == NULL ? "none" : pane);
1123
1124
	/* No pane is allowed if want an index. */
1125
	if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
1126
		if (~flags & CMD_FIND_QUIET)
1127
			cmdq_error(item, "can't specify pane here");
1128
		goto error;
1129
	}
1130
1131
	/* If the session isn't NULL, look it up. */
1132
	if (session != NULL) {
1133
		/* This will fill in session. */
1134
		if (cmd_find_get_session(fs, session) != 0)
1135
			goto no_session;
1136
1137
		/* If window and pane are NULL, use that session's current. */
1138
		if (window == NULL && pane == NULL) {
1139
			fs->wl = fs->s->curw;
1140
			fs->idx = -1;
1141
			fs->w = fs->wl->window;
1142
			fs->wp = fs->w->active;
1143
			goto found;
1144
		}
1145
1146
		/* If window is present but pane not, find window in session. */
1147
		if (window != NULL && pane == NULL) {
1148
			/* This will fill in winlink and window. */
1149
			if (cmd_find_get_window_with_session(fs, window) != 0)
1150
				goto no_window;
1151
			fs->wp = fs->wl->window->active;
1152
			goto found;
1153
		}
1154
1155
		/* If pane is present but window not, find pane. */
1156
		if (window == NULL && pane != NULL) {
1157
			/* This will fill in winlink and window and pane. */
1158
			if (cmd_find_get_pane_with_session(fs, pane) != 0)
1159
				goto no_pane;
1160
			goto found;
1161
		}
1162
1163
		/*
1164
		 * If window and pane are present, find both in session. This
1165
		 * will fill in winlink and window.
1166
		 */
1167
		if (cmd_find_get_window_with_session(fs, window) != 0)
1168
			goto no_window;
1169
		/* This will fill in pane. */
1170
		if (cmd_find_get_pane_with_window(fs, pane) != 0)
1171
			goto no_pane;
1172
		goto found;
1173
	}
1174
1175
	/* No session. If window and pane, try them. */
1176
	if (window != NULL && pane != NULL) {
1177
		/* This will fill in session, winlink and window. */
1178
		if (cmd_find_get_window(fs, window, window_only) != 0)
1179
			goto no_window;
1180
		/* This will fill in pane. */
1181
		if (cmd_find_get_pane_with_window(fs, pane) != 0)
1182
			goto no_pane;
1183
		goto found;
1184
	}
1185
1186
	/* If just window is present, try it. */
1187
	if (window != NULL && pane == NULL) {
1188
		/* This will fill in session, winlink and window. */
1189
		if (cmd_find_get_window(fs, window, window_only) != 0)
1190
			goto no_window;
1191
		fs->wp = fs->wl->window->active;
1192
		goto found;
1193
	}
1194
1195
	/* If just pane is present, try it. */
1196
	if (window == NULL && pane != NULL) {
1197
		/* This will fill in session, winlink, window and pane. */
1198
		if (cmd_find_get_pane(fs, pane, pane_only) != 0)
1199
			goto no_pane;
1200
		goto found;
1201
	}
1202
1203
current:
1204
	/* Use the current session. */
1205
	cmd_find_copy_state(fs, fs->current);
1206
	if (flags & CMD_FIND_WINDOW_INDEX)
1207
		fs->idx = -1;
1208
	goto found;
1209
1210
error:
1211
	fs->current = NULL;
1212
	log_debug("%s: error", __func__);
1213
1214
	free(copy);
1215
	if (flags & CMD_FIND_CANFAIL)
1216
		return (0);
1217
	return (-1);
1218
1219
found:
1220
	fs->current = NULL;
1221
	cmd_find_log_state(__func__, fs);
1222
1223
	free(copy);
1224
	return (0);
1225
1226
no_session:
1227
	if (~flags & CMD_FIND_QUIET)
1228
		cmdq_error(item, "can't find session %s", session);
1229
	goto error;
1230
1231
no_window:
1232
	if (~flags & CMD_FIND_QUIET)
1233
		cmdq_error(item, "can't find window %s", window);
1234
	goto error;
1235
1236
no_pane:
1237
	if (~flags & CMD_FIND_QUIET)
1238
		cmdq_error(item, "can't find pane %s", pane);
1239
	goto error;
1240
}
1241
1242
/* Find the current client. */
1243
static struct client *
1244
cmd_find_current_client(struct cmdq_item *item, int quiet)
1245
{
1246
	struct client		*c;
1247
	struct session		*s;
1248
	struct window_pane	*wp;
1249
	struct cmd_find_state	 fs;
1250
1251
	if (item->client != NULL && item->client->session != NULL)
1252
		return (item->client);
1253
1254
	c = NULL;
1255
	if ((wp = cmd_find_inside_pane(item->client)) != NULL) {
1256
		cmd_find_clear_state(&fs, CMD_FIND_QUIET);
1257
		fs.w = wp->window;
1258
		if (cmd_find_best_session_with_window(&fs) == 0)
1259
			c = cmd_find_best_client(fs.s);
1260
	} else {
1261
		s = cmd_find_best_session(NULL, 0, CMD_FIND_QUIET);
1262
		if (s != NULL)
1263
			c = cmd_find_best_client(s);
1264
	}
1265
	if (c == NULL && !quiet)
1266
		cmdq_error(item, "no current client");
1267
	log_debug("%s: no target, return %p", __func__, c);
1268
	return (c);
1269
}
1270
1271
/* Find the target client or report an error and return NULL. */
1272
struct client *
1273
cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
1274
{
1275
	struct client	*c;
1276
	char		*copy;
1277
	size_t		 size;
1278
1279
	/* A NULL argument means the current client. */
1280
	if (target == NULL)
1281
		return (cmd_find_current_client(item, quiet));
1282
	copy = xstrdup(target);
1283
1284
	/* Trim a single trailing colon if any. */
1285
	size = strlen(copy);
1286
	if (size != 0 && copy[size - 1] == ':')
1287
		copy[size - 1] = '\0';
1288
1289
	/* Check name and path of each client. */
1290
	TAILQ_FOREACH(c, &clients, entry) {
1291
		if (c->session == NULL)
1292
			continue;
1293
		if (strcmp(copy, c->name) == 0)
1294
			break;
1295
1296
		if (*c->ttyname == '\0')
1297
			continue;
1298
		if (strcmp(copy, c->ttyname) == 0)
1299
			break;
1300
		if (strncmp(c->ttyname, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
1301
			continue;
1302
		if (strcmp(copy, c->ttyname + (sizeof _PATH_DEV) - 1) == 0)
1303
			break;
1304
	}
1305
1306
	/* If no client found, report an error. */
1307
	if (c == NULL && !quiet)
1308
		cmdq_error(item, "can't find client %s", copy);
1309
1310
	free(copy);
1311
	log_debug("%s: target %s, return %p", __func__, target, c);
1312
	return (c);
1313
}