forked from tmate-io/tmate-ssh-server
-
Notifications
You must be signed in to change notification settings - Fork 0
/
cmd-find.c
1228 lines (1081 loc) · 29.1 KB
/
cmd-find.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* $OpenBSD$ */
/*
* Copyright (c) 2015 Nicholas Marriott <[email protected]>
*
* 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 <fnmatch.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "tmux.h"
struct session *cmd_find_try_TMUX(struct client *, struct window *);
int cmd_find_client_better(struct client *, struct client *);
struct client *cmd_find_best_client(struct client **, u_int);
int cmd_find_session_better(struct session *, struct session *,
int);
struct session *cmd_find_best_session(struct session **, u_int, int);
int cmd_find_best_session_with_window(struct cmd_find_state *);
int cmd_find_best_winlink_with_window(struct cmd_find_state *);
int cmd_find_current_session_with_client(struct cmd_find_state *);
int cmd_find_current_session(struct cmd_find_state *);
struct client *cmd_find_current_client(struct cmd_q *);
const char *cmd_find_map_table(const char *[][2], const char *);
int cmd_find_get_session(struct cmd_find_state *, const char *);
int cmd_find_get_window(struct cmd_find_state *, const char *);
int cmd_find_get_window_with_session(struct cmd_find_state *, const char *);
int cmd_find_get_window_with_pane(struct cmd_find_state *);
int cmd_find_get_pane(struct cmd_find_state *, const char *);
int cmd_find_get_pane_with_session(struct cmd_find_state *, const char *);
int cmd_find_get_pane_with_window(struct cmd_find_state *, const char *);
const char *cmd_find_session_table[][2] = {
{ NULL, NULL }
};
const char *cmd_find_window_table[][2] = {
{ "{start}", "^" },
{ "{last}", "!" },
{ "{end}", "$" },
{ "{next}", "+" },
{ "{previous}", "-" },
{ NULL, NULL }
};
const char *cmd_find_pane_table[][2] = {
{ "{last}", "!" },
{ "{next}", "+" },
{ "{previous}", "-" },
{ "{top}", "top" },
{ "{bottom}", "bottom" },
{ "{left}", "left" },
{ "{right}", "right" },
{ "{top-left}", "top-left" },
{ "{top-right}", "top-right" },
{ "{bottom-left}", "bottom-left" },
{ "{bottom-right}", "bottom-right" },
{ "{up-of}", "{up-of}" },
{ "{down-of}", "{down-of}" },
{ "{left-of}", "{left-of}" },
{ "{right-of}", "{right-of}" },
{ NULL, NULL }
};
/* Get session from TMUX if present. */
struct session *
cmd_find_try_TMUX(struct client *c, struct window *w)
{
struct environ_entry *envent;
char tmp[256];
long long pid;
u_int session;
struct session *s;
envent = environ_find(c->environ, "TMUX");
if (envent == NULL)
return (NULL);
if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
return (NULL);
if (pid != getpid())
return (NULL);
log_debug("client %p TMUX is %s (session @%u)", c, envent->value,
session);
s = session_find_by_id(session);
if (s == NULL || (w != NULL && !session_has(s, w)))
return (NULL);
return (s);
}
/* Is this client better? */
int
cmd_find_client_better(struct client *c, struct client *than)
{
if (than == NULL)
return (1);
return (timercmp(&c->activity_time, &than->activity_time, >));
}
/* Find best client from a list, or all if list is NULL. */
struct client *
cmd_find_best_client(struct client **clist, u_int csize)
{
struct client *c_loop, *c;
u_int i;
c = NULL;
if (clist != NULL) {
for (i = 0; i < csize; i++) {
if (clist[i]->session == NULL)
continue;
if (cmd_find_client_better(clist[i], c))
c = clist[i];
}
} else {
TAILQ_FOREACH(c_loop, &clients, entry) {
if (c_loop->session == NULL)
continue;
if (cmd_find_client_better(c_loop, c))
c = c_loop;
}
}
return (c);
}
/* Is this session better? */
int
cmd_find_session_better(struct session *s, struct session *than, int flags)
{
int attached;
if (than == NULL)
return (1);
if (flags & CMD_FIND_PREFER_UNATTACHED) {
attached = (~than->flags & SESSION_UNATTACHED);
if (attached && (s->flags & SESSION_UNATTACHED))
return (1);
else if (!attached && (~s->flags & SESSION_UNATTACHED))
return (0);
}
return (timercmp(&s->activity_time, &than->activity_time, >));
}
/* Find best session from a list, or all if list is NULL. */
struct session *
cmd_find_best_session(struct session **slist, u_int ssize, int flags)
{
struct session *s_loop, *s;
u_int i;
s = NULL;
if (slist != NULL) {
for (i = 0; i < ssize; i++) {
if (cmd_find_session_better(slist[i], s, flags))
s = slist[i];
}
} else {
RB_FOREACH(s_loop, sessions, &sessions) {
if (cmd_find_session_better(s_loop, s, flags))
s = s_loop;
}
}
return (s);
}
/* Find best session and winlink for window. */
int
cmd_find_best_session_with_window(struct cmd_find_state *fs)
{
struct session **slist = NULL;
u_int ssize;
struct session *s;
if (fs->cmdq != NULL && fs->cmdq->client != NULL) {
fs->s = cmd_find_try_TMUX(fs->cmdq->client, fs->w);
if (fs->s != NULL)
return (cmd_find_best_winlink_with_window(fs));
}
ssize = 0;
RB_FOREACH(s, sessions, &sessions) {
if (!session_has(s, fs->w))
continue;
slist = xreallocarray(slist, ssize + 1, sizeof *slist);
slist[ssize++] = s;
}
if (ssize == 0)
goto fail;
fs->s = cmd_find_best_session(slist, ssize, fs->flags);
if (fs->s == NULL)
goto fail;
free(slist);
return (cmd_find_best_winlink_with_window(fs));
fail:
free(slist);
return (-1);
}
/*
* Find the best winlink for a window (the current if it contains the pane,
* otherwise the first).
*/
int
cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
{
struct winlink *wl, *wl_loop;
wl = NULL;
if (fs->s->curw->window == fs->w)
wl = fs->s->curw;
else {
RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
if (wl_loop->window == fs->w) {
wl = wl_loop;
break;
}
}
}
if (wl == NULL)
return (-1);
fs->wl = wl;
fs->idx = fs->wl->idx;
return (0);
}
/* Find current session when we have an unattached client. */
int
cmd_find_current_session_with_client(struct cmd_find_state *fs)
{
struct window_pane *wp;
/*
* If this is running in a pane, we can use that to limit the list of
* sessions to those containing that pane (we still use the current
* window in the best session).
*/
if (fs->cmdq != NULL && fs->cmdq->client->tty.path != NULL) {
RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
if (strcmp(wp->tty, fs->cmdq->client->tty.path) == 0)
break;
}
} else
wp = NULL;
/* Not running in a pane. We know nothing. Find the best session. */
if (wp == NULL)
goto unknown_pane;
/* Find the best session and winlink containing this pane. */
fs->w = wp->window;
if (cmd_find_best_session_with_window(fs) != 0) {
if (wp != NULL) {
/*
* The window may have been destroyed but the pane
* still on all_window_panes due to something else
* holding a reference.
*/
goto unknown_pane;
}
return (-1);
}
/* Use the current window and pane from this session. */
fs->wl = fs->s->curw;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
fs->wp = fs->w->active;
return (0);
unknown_pane:
fs->s = NULL;
if (fs->cmdq != NULL)
fs->s = cmd_find_try_TMUX(fs->cmdq->client, NULL);
if (fs->s == NULL)
fs->s = cmd_find_best_session(NULL, 0, fs->flags);
if (fs->s == NULL)
return (-1);
fs->wl = fs->s->curw;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
fs->wp = fs->w->active;
return (0);
}
/*
* Work out the best current state. If this function succeeds, the state is
* guaranteed to be completely filled in.
*/
int
cmd_find_current_session(struct cmd_find_state *fs)
{
/* If we know the current client, use it. */
if (fs->cmdq != NULL && fs->cmdq->client != NULL) {
log_debug("%s: have client %p%s", __func__, fs->cmdq->client,
fs->cmdq->client->session == NULL ? "" : " (with session)");
if (fs->cmdq->client->session == NULL)
return (cmd_find_current_session_with_client(fs));
fs->s = fs->cmdq->client->session;
fs->wl = fs->s->curw;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
fs->wp = fs->w->active;
return (0);
}
/* We know nothing, find the best session and client. */
fs->s = cmd_find_best_session(NULL, 0, fs->flags);
if (fs->s == NULL)
return (-1);
fs->wl = fs->s->curw;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
fs->wp = fs->w->active;
return (0);
}
/* Work out the best current client. */
struct client *
cmd_find_current_client(struct cmd_q *cmdq)
{
struct cmd_find_state current;
struct session *s;
struct client *c, **clist = NULL;
u_int csize;
/* If the queue client has a session, use it. */
if (cmdq->client != NULL && cmdq->client->session != NULL) {
log_debug("%s: using cmdq %p client %p", __func__, cmdq,
cmdq->client);
return (cmdq->client);
}
/* Otherwise find the current session. */
cmd_find_clear_state(¤t, cmdq, 0);
if (cmd_find_current_session(¤t) != 0)
return (NULL);
/* If it is attached, find the best of it's clients. */
s = current.s;
log_debug("%s: current session $%u %s", __func__, s->id, s->name);
if (~s->flags & SESSION_UNATTACHED) {
csize = 0;
TAILQ_FOREACH(c, &clients, entry) {
if (c->session != s)
continue;
clist = xreallocarray(clist, csize + 1, sizeof *clist);
clist[csize++] = c;
}
if (csize != 0) {
c = cmd_find_best_client(clist, csize);
if (c != NULL) {
free(clist);
return (c);
}
}
free(clist);
}
/* Otherwise pick best of all clients. */
return (cmd_find_best_client(NULL, 0));
}
/* Maps string in table. */
const char *
cmd_find_map_table(const char *table[][2], const char *s)
{
u_int i;
for (i = 0; table[i][0] != NULL; i++) {
if (strcmp(s, table[i][0]) == 0)
return (table[i][1]);
}
return (s);
}
/* Find session from string. Fills in s. */
int
cmd_find_get_session(struct cmd_find_state *fs, const char *session)
{
struct session *s, *s_loop;
log_debug("%s: %s", __func__, session);
/* Check for session ids starting with $. */
if (*session == '$') {
fs->s = session_find_by_id_str(session);
if (fs->s == NULL)
return (-1);
return (0);
}
/* Look for exactly this session. */
fs->s = session_find(session);
if (fs->s != NULL)
return (0);
/* Stop now if exact only. */
if (fs->flags & CMD_FIND_EXACT_SESSION)
return (-1);
/* Otherwise look for prefix. */
s = NULL;
RB_FOREACH(s_loop, sessions, &sessions) {
if (strncmp(session, s_loop->name, strlen(session)) == 0) {
if (s != NULL)
return (-1);
s = s_loop;
}
}
if (s != NULL) {
fs->s = s;
return (0);
}
/* Then as a pattern. */
s = NULL;
RB_FOREACH(s_loop, sessions, &sessions) {
if (fnmatch(session, s_loop->name, 0) == 0) {
if (s != NULL)
return (-1);
s = s_loop;
}
}
if (s != NULL) {
fs->s = s;
return (0);
}
return (-1);
}
/* Find window from string. Fills in s, wl, w. */
int
cmd_find_get_window(struct cmd_find_state *fs, const char *window)
{
log_debug("%s: %s", __func__, window);
/* Check for window ids starting with @. */
if (*window == '@') {
fs->w = window_find_by_id_str(window);
if (fs->w == NULL)
return (-1);
return (cmd_find_best_session_with_window(fs));
}
/* Not a window id, so use the current session. */
fs->s = fs->current->s;
/* We now only need to find the winlink in this session. */
if (cmd_find_get_window_with_session(fs, window) == 0)
return (0);
/* Otherwise try as a session itself. */
if (cmd_find_get_session(fs, window) == 0) {
fs->wl = fs->s->curw;
fs->w = fs->wl->window;
if (~fs->flags & CMD_FIND_WINDOW_INDEX)
fs->idx = fs->wl->idx;
return (0);
}
return (-1);
}
/*
* Find window from string, assuming it is in given session. Needs s, fills in
* wl and w.
*/
int
cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
{
struct winlink *wl;
const char *errstr;
int idx, n, exact;
struct session *s;
log_debug("%s: %s", __func__, window);
exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
/*
* Start with the current window as the default. So if only an index is
* found, the window will be the current.
*/
fs->wl = fs->s->curw;
fs->w = fs->wl->window;
/* Check for window ids starting with @. */
if (*window == '@') {
fs->w = window_find_by_id_str(window);
if (fs->w == NULL || !session_has(fs->s, fs->w))
return (-1);
return (cmd_find_best_winlink_with_window(fs));
}
/* Try as an offset. */
if (!exact && (window[0] == '+' || window[0] == '-')) {
if (window[1] != '\0')
n = strtonum(window + 1, 1, INT_MAX, NULL);
else
n = 1;
s = fs->s;
if (fs->flags & CMD_FIND_WINDOW_INDEX) {
if (window[0] == '+') {
if (INT_MAX - s->curw->idx < n)
return (-1);
fs->idx = s->curw->idx + n;
} else {
if (n < s->curw->idx)
return (-1);
fs->idx = s->curw->idx - n;
}
return (0);
}
if (window[0] == '+')
fs->wl = winlink_next_by_number(s->curw, s, n);
else
fs->wl = winlink_previous_by_number(s->curw, s, n);
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
}
/* Try special characters. */
if (!exact) {
if (strcmp(window, "!") == 0) {
fs->wl = TAILQ_FIRST(&fs->s->lastw);
if (fs->wl == NULL)
return (-1);
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
} else if (strcmp(window, "^") == 0) {
fs->wl = RB_MIN(winlinks, &fs->s->windows);
if (fs->wl == NULL)
return (-1);
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
} else if (strcmp(window, "$") == 0) {
fs->wl = RB_MAX(winlinks, &fs->s->windows);
if (fs->wl == NULL)
return (-1);
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
}
/* First see if this is a valid window index in this session. */
if (window[0] != '+' && window[0] != '-') {
idx = strtonum(window, 0, INT_MAX, &errstr);
if (errstr == NULL) {
if (fs->flags & CMD_FIND_WINDOW_INDEX) {
fs->idx = idx;
return (0);
}
fs->wl = winlink_find_by_index(&fs->s->windows, idx);
if (fs->wl != NULL) {
fs->w = fs->wl->window;
return (0);
}
}
}
/* Look for exact matches, error if more than one. */
fs->wl = NULL;
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (strcmp(window, wl->window->name) == 0) {
if (fs->wl != NULL)
return (-1);
fs->wl = wl;
}
}
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
/* Stop now if exact only. */
if (exact)
return (-1);
/* Try as the start of a window name, error if multiple. */
fs->wl = NULL;
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (strncmp(window, wl->window->name, strlen(window)) == 0) {
if (fs->wl != NULL)
return (-1);
fs->wl = wl;
}
}
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
/* Now look for pattern matches, again error if multiple. */
fs->wl = NULL;
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (fnmatch(window, wl->window->name, 0) == 0) {
if (fs->wl != NULL)
return (-1);
fs->wl = wl;
}
}
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
return (-1);
}
/* Find window from given pane. Needs wp, fills in s and wl and w. */
int
cmd_find_get_window_with_pane(struct cmd_find_state *fs)
{
log_debug("%s", __func__);
fs->w = fs->wp->window;
return (cmd_find_best_session_with_window(fs));
}
/* Find pane from string. Fills in s, wl, w, wp. */
int
cmd_find_get_pane(struct cmd_find_state *fs, const char *pane)
{
log_debug("%s: %s", __func__, pane);
/* Check for pane ids starting with %. */
if (*pane == '%') {
fs->wp = window_pane_find_by_id_str(pane);
if (fs->wp == NULL)
return (-1);
fs->w = fs->wp->window;
return (cmd_find_best_session_with_window(fs));
}
/* Not a pane id, so try the current session and window. */
fs->s = fs->current->s;
fs->wl = fs->current->wl;
fs->idx = fs->current->idx;
fs->w = fs->current->w;
/* We now only need to find the pane in this window. */
if (cmd_find_get_pane_with_window(fs, pane) == 0)
return (0);
/* Otherwise try as a window itself (this will also try as session). */
if (cmd_find_get_window(fs, pane) == 0) {
fs->wp = fs->w->active;
return (0);
}
return (-1);
}
/*
* Find pane from string, assuming it is in given session. Needs s, fills in wl
* and w and wp.
*/
int
cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
{
log_debug("%s: %s", __func__, pane);
/* Check for pane ids starting with %. */
if (*pane == '%') {
fs->wp = window_pane_find_by_id_str(pane);
if (fs->wp == NULL)
return (-1);
fs->w = fs->wp->window;
return (cmd_find_best_winlink_with_window(fs));
}
/* Otherwise use the current window. */
fs->wl = fs->s->curw;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
/* Now we just need to look up the pane. */
return (cmd_find_get_pane_with_window(fs, pane));
}
/*
* Find pane from string, assuming it is in the given window. Needs w, fills in
* wp.
*/
int
cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
{
const char *errstr;
int idx;
struct window_pane *wp;
u_int n;
log_debug("%s: %s", __func__, pane);
/* Check for pane ids starting with %. */
if (*pane == '%') {
fs->wp = window_pane_find_by_id_str(pane);
if (fs->wp == NULL || fs->wp->window != fs->w)
return (-1);
return (0);
}
/* Try special characters. */
if (strcmp(pane, "!") == 0) {
if (fs->w->last == NULL)
return (-1);
fs->wp = fs->w->last;
return (0);
} else if (strcmp(pane, "{up-of}") == 0) {
fs->wp = window_pane_find_up(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
} else if (strcmp(pane, "{down-of}") == 0) {
fs->wp = window_pane_find_down(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
} else if (strcmp(pane, "{left-of}") == 0) {
fs->wp = window_pane_find_left(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
} else if (strcmp(pane, "{right-of}") == 0) {
fs->wp = window_pane_find_right(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
}
/* Try as an offset. */
if (pane[0] == '+' || pane[0] == '-') {
if (pane[1] != '\0')
n = strtonum(pane + 1, 1, INT_MAX, NULL);
else
n = 1;
wp = fs->w->active;
if (pane[0] == '+')
fs->wp = window_pane_next_by_number(fs->w, wp, n);
else
fs->wp = window_pane_previous_by_number(fs->w, wp, n);
if (fs->wp != NULL)
return (0);
}
/* Get pane by index. */
idx = strtonum(pane, 0, INT_MAX, &errstr);
if (errstr == NULL) {
fs->wp = window_pane_at_index(fs->w, idx);
if (fs->wp != NULL)
return (0);
}
/* Try as a description. */
fs->wp = window_find_string(fs->w, pane);
if (fs->wp != NULL)
return (0);
return (-1);
}
/* Clear state. */
void
cmd_find_clear_state(struct cmd_find_state *fs, struct cmd_q *cmdq, int flags)
{
memset(fs, 0, sizeof *fs);
fs->cmdq = cmdq;
fs->flags = flags;
fs->idx = -1;
}
/* Check if a state if valid. */
int
cmd_find_valid_state(struct cmd_find_state *fs)
{
struct winlink *wl;
if (fs->s == NULL || fs->wl == NULL || fs->w == NULL || fs->wp == NULL)
return (0);
if (!session_alive(fs->s))
return (0);
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (wl->window == fs->w && wl == fs->wl)
break;
}
if (wl == NULL)
return (0);
if (fs->w != fs->wl->window)
return (0);
if (!window_has_pane(fs->w, fs->wp))
return (0);
return (window_pane_visible(fs->wp));
}
/* Copy a state. */
void
cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
{
dst->s = src->s;
dst->wl = src->wl;
dst->idx = src->idx;
dst->w = src->w;
dst->wp = src->wp;
}
/* Log the result. */
void
cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
{
if (fs->s != NULL)
log_debug("%s: s=$%u", prefix, fs->s->id);
else
log_debug("%s: s=none", prefix);
if (fs->wl != NULL) {
log_debug("%s: wl=%u %d w=@%u %s", prefix, fs->wl->idx,
fs->wl->window == fs->w, fs->w->id, fs->w->name);
} else
log_debug("%s: wl=none", prefix);
if (fs->wp != NULL)
log_debug("%s: wp=%%%u", prefix, fs->wp->id);
else
log_debug("%s: wp=none", prefix);
if (fs->idx != -1)
log_debug("%s: idx=%d", prefix, fs->idx);
else
log_debug("%s: idx=none", prefix);
}
/* Find state from a session. */
int
cmd_find_from_session(struct cmd_find_state *fs, struct session *s)
{
cmd_find_clear_state(fs, NULL, 0);
fs->s = s;
fs->wl = fs->s->curw;
fs->w = fs->wl->window;
fs->wp = fs->w->active;
cmd_find_log_state(__func__, fs);
return (0);
}
/* Find state from a window. */
int
cmd_find_from_window(struct cmd_find_state *fs, struct window *w)
{
cmd_find_clear_state(fs, NULL, 0);
fs->w = w;
if (cmd_find_best_session_with_window(fs) != 0)
return (-1);
if (cmd_find_best_winlink_with_window(fs) != 0)
return (-1);
cmd_find_log_state(__func__, fs);
return (0);
}
/* Find state from a pane. */
int
cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp)
{
if (cmd_find_from_window(fs, wp->window) != 0)
return (-1);
fs->wp = wp;
cmd_find_log_state(__func__, fs);
return (0);
}
/*
* Split target into pieces and resolve for the given type. Fills in the given
* state. Returns 0 on success or -1 on error.
*/
int
cmd_find_target(struct cmd_find_state *fs, struct cmd_q *cmdq,
const char *target, enum cmd_find_type type, int flags)
{
struct cmd_find_state current;
struct mouse_event *m;
char *colon, *period, *copy = NULL;
const char *session, *window, *pane;
/* Log the arguments. */
if (target == NULL)
log_debug("%s: target none, type %d", __func__, type);
else
log_debug("%s: target %s, type %d", __func__, target, type);
log_debug("%s: cmdq %p, flags %#x", __func__, cmdq, flags);
/* Clear new state. */
cmd_find_clear_state(fs, cmdq, flags);
/* Find current state. */
if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED))
fs->current = &marked_pane;
else if (cmd_find_valid_state(&cmdq->current))
fs->current = &cmdq->current;
else {
cmd_find_clear_state(¤t, cmdq, flags);
if (cmd_find_current_session(¤t) != 0) {
if (~flags & CMD_FIND_QUIET)
cmdq_error(cmdq, "no current session");
goto error;
}
fs->current = ¤t;
}
/* An empty or NULL target is the current. */
if (target == NULL || *target == '\0')
goto current;
/* Mouse target is a plain = or {mouse}. */
if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
m = &cmdq->item->mouse;
switch (type) {
case CMD_FIND_PANE:
fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
if (fs->wp != NULL)
fs->w = fs->wl->window;
break;
case CMD_FIND_WINDOW:
case CMD_FIND_SESSION:
fs->wl = cmd_mouse_window(m, &fs->s);
if (fs->wl != NULL) {
fs->w = fs->wl->window;
fs->wp = fs->w->active;
}
break;
}
if (fs->wp == NULL) {
if (~flags & CMD_FIND_QUIET)
cmdq_error(cmdq, "no mouse target");
goto error;
}
goto found;
}
/* Marked target is a plain ~ or {marked}. */
if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
if (!server_check_marked()) {
if (~flags & CMD_FIND_QUIET)
cmdq_error(cmdq, "no marked target");
goto error;
}
cmd_find_copy_state(fs, &marked_pane);
goto found;
}
/* Find separators if they exist. */
copy = xstrdup(target);
colon = strchr(copy, ':');
if (colon != NULL)
*colon++ = '\0';
if (colon == NULL)
period = strchr(copy, '.');
else
period = strchr(colon, '.');
if (period != NULL)
*period++ = '\0';
/* Set session, window and pane parts. */