Annotation of src/usr.bin/tmux/cmd-find.c, Revision 1.66
1.66 ! nicm 1: /* $OpenBSD: cmd-find.c,v 1.65 2018/05/28 11:50:47 nicm Exp $ */
1.1 nicm 2:
3: /*
1.30 nicm 4: * Copyright (c) 2015 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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>
1.15 nicm 26: #include <unistd.h>
1.1 nicm 27:
28: #include "tmux.h"
29:
1.33 nicm 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 *);
1.44 nicm 39: static int cmd_find_get_window(struct cmd_find_state *, const char *, int);
1.33 nicm 40: static int cmd_find_get_window_with_session(struct cmd_find_state *,
41: const char *);
1.44 nicm 42: static int cmd_find_get_pane(struct cmd_find_state *, const char *, int);
1.33 nicm 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 *);
1.1 nicm 47:
1.33 nicm 48: static const char *cmd_find_session_table[][2] = {
1.1 nicm 49: { NULL, NULL }
50: };
1.33 nicm 51: static const char *cmd_find_window_table[][2] = {
1.1 nicm 52: { "{start}", "^" },
53: { "{last}", "!" },
54: { "{end}", "$" },
55: { "{next}", "+" },
56: { "{previous}", "-" },
57: { NULL, NULL }
58: };
1.33 nicm 59: static const char *cmd_find_pane_table[][2] = {
1.1 nicm 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" },
1.12 nicm 71: { "{up-of}", "{up-of}" },
72: { "{down-of}", "{down-of}" },
73: { "{left-of}", "{left-of}" },
74: { "{right-of}", "{right-of}" },
1.1 nicm 75: { NULL, NULL }
76: };
77:
1.15 nicm 78: /* Get session from TMUX if present. */
1.33 nicm 79: static struct session *
1.48 nicm 80: cmd_find_try_TMUX(struct client *c)
1.15 nicm 81: {
82: struct environ_entry *envent;
83: char tmp[256];
84: long long pid;
85: u_int session;
1.63 nicm 86: struct session *s;
1.15 nicm 87:
1.17 nicm 88: envent = environ_find(c->environ, "TMUX");
1.15 nicm 89: if (envent == NULL)
90: return (NULL);
91:
92: if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
93: return (NULL);
94: if (pid != getpid())
95: return (NULL);
1.63 nicm 96: log_debug("%s: client %p TMUX %s (session $%u)", __func__, c,
97: envent->value, session);
98:
99: s = session_find_by_id(session);
100: if (s != NULL)
101: log_debug("%s: session $%u still exists", __func__, s->id);
102: return (s);
1.15 nicm 103: }
104:
1.55 nicm 105: /* Find pane containing client if any. */
106: static struct window_pane *
107: cmd_find_inside_pane(struct client *c)
108: {
109: struct window_pane *wp;
110:
111: if (c == NULL)
112: return (NULL);
113:
114: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
1.65 nicm 115: if (wp->fd != -1 && strcmp(wp->tty, c->ttyname) == 0)
1.55 nicm 116: break;
117: }
1.63 nicm 118: if (wp != NULL)
119: log_debug("%s: got pane %%%u (%s)", __func__, wp->id, wp->tty);
1.55 nicm 120: return (wp);
121: }
122:
1.1 nicm 123: /* Is this client better? */
1.33 nicm 124: static int
1.1 nicm 125: cmd_find_client_better(struct client *c, struct client *than)
126: {
127: if (than == NULL)
128: return (1);
129: return (timercmp(&c->activity_time, &than->activity_time, >));
130: }
131:
1.48 nicm 132: /* Find best client for session. */
1.61 nicm 133: struct client *
1.48 nicm 134: cmd_find_best_client(struct session *s)
1.1 nicm 135: {
136: struct client *c_loop, *c;
1.48 nicm 137:
138: if (s->flags & SESSION_UNATTACHED)
139: s = NULL;
1.1 nicm 140:
141: c = NULL;
1.48 nicm 142: TAILQ_FOREACH(c_loop, &clients, entry) {
143: if (c_loop->session == NULL)
144: continue;
145: if (s != NULL && c_loop->session != s)
146: continue;
147: if (cmd_find_client_better(c_loop, c))
148: c = c_loop;
1.1 nicm 149: }
150: return (c);
151: }
152:
153: /* Is this session better? */
1.33 nicm 154: static int
1.1 nicm 155: cmd_find_session_better(struct session *s, struct session *than, int flags)
156: {
157: int attached;
158:
159: if (than == NULL)
160: return (1);
161: if (flags & CMD_FIND_PREFER_UNATTACHED) {
162: attached = (~than->flags & SESSION_UNATTACHED);
163: if (attached && (s->flags & SESSION_UNATTACHED))
164: return (1);
165: else if (!attached && (~s->flags & SESSION_UNATTACHED))
166: return (0);
167: }
168: return (timercmp(&s->activity_time, &than->activity_time, >));
169: }
170:
171: /* Find best session from a list, or all if list is NULL. */
1.33 nicm 172: static struct session *
1.1 nicm 173: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
174: {
175: struct session *s_loop, *s;
176: u_int i;
177:
1.63 nicm 178: log_debug("%s: %u sessions to try", __func__, ssize);
179:
1.1 nicm 180: s = NULL;
181: if (slist != NULL) {
182: for (i = 0; i < ssize; i++) {
183: if (cmd_find_session_better(slist[i], s, flags))
184: s = slist[i];
185: }
186: } else {
187: RB_FOREACH(s_loop, sessions, &sessions) {
188: if (cmd_find_session_better(s_loop, s, flags))
189: s = s_loop;
190: }
191: }
192: return (s);
193: }
194:
195: /* Find best session and winlink for window. */
1.33 nicm 196: static int
1.1 nicm 197: cmd_find_best_session_with_window(struct cmd_find_state *fs)
198: {
199: struct session **slist = NULL;
200: u_int ssize;
201: struct session *s;
202:
1.63 nicm 203: log_debug("%s: window is @%u", __func__, fs->w->id);
204:
1.1 nicm 205: ssize = 0;
206: RB_FOREACH(s, sessions, &sessions) {
207: if (!session_has(s, fs->w))
208: continue;
1.7 nicm 209: slist = xreallocarray(slist, ssize + 1, sizeof *slist);
1.1 nicm 210: slist[ssize++] = s;
211: }
212: if (ssize == 0)
213: goto fail;
214: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
215: if (fs->s == NULL)
216: goto fail;
1.7 nicm 217: free(slist);
1.1 nicm 218: return (cmd_find_best_winlink_with_window(fs));
219:
220: fail:
221: free(slist);
222: return (-1);
223: }
224:
225: /*
1.65 nicm 226: * Find the best winlink for a window (the current if it contains the window,
1.1 nicm 227: * otherwise the first).
228: */
1.33 nicm 229: static int
1.1 nicm 230: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
231: {
232: struct winlink *wl, *wl_loop;
233:
1.63 nicm 234: log_debug("%s: window is @%u", __func__, fs->w->id);
235:
1.1 nicm 236: wl = NULL;
1.38 nicm 237: if (fs->s->curw != NULL && fs->s->curw->window == fs->w)
1.1 nicm 238: wl = fs->s->curw;
239: else {
240: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
241: if (wl_loop->window == fs->w) {
242: wl = wl_loop;
243: break;
244: }
245: }
246: }
247: if (wl == NULL)
248: return (-1);
249: fs->wl = wl;
250: fs->idx = fs->wl->idx;
251: return (0);
252: }
253:
254: /* Maps string in table. */
1.33 nicm 255: static const char *
1.1 nicm 256: cmd_find_map_table(const char *table[][2], const char *s)
257: {
258: u_int i;
259:
260: for (i = 0; table[i][0] != NULL; i++) {
261: if (strcmp(s, table[i][0]) == 0)
262: return (table[i][1]);
263: }
264: return (s);
265: }
266:
267: /* Find session from string. Fills in s. */
1.33 nicm 268: static int
1.1 nicm 269: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
270: {
271: struct session *s, *s_loop;
1.32 nicm 272: struct client *c;
1.1 nicm 273:
274: log_debug("%s: %s", __func__, session);
275:
276: /* Check for session ids starting with $. */
277: if (*session == '$') {
278: fs->s = session_find_by_id_str(session);
279: if (fs->s == NULL)
280: return (-1);
281: return (0);
282: }
283:
284: /* Look for exactly this session. */
285: fs->s = session_find(session);
286: if (fs->s != NULL)
287: return (0);
288:
1.32 nicm 289: /* Look for as a client. */
290: c = cmd_find_client(NULL, session, 1);
291: if (c != NULL && c->session != NULL) {
292: fs->s = c->session;
293: return (0);
294: }
295:
1.9 nicm 296: /* Stop now if exact only. */
297: if (fs->flags & CMD_FIND_EXACT_SESSION)
298: return (-1);
299:
1.1 nicm 300: /* Otherwise look for prefix. */
301: s = NULL;
302: RB_FOREACH(s_loop, sessions, &sessions) {
303: if (strncmp(session, s_loop->name, strlen(session)) == 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: /* Then as a pattern. */
315: s = NULL;
316: RB_FOREACH(s_loop, sessions, &sessions) {
317: if (fnmatch(session, s_loop->name, 0) == 0) {
318: if (s != NULL)
319: return (-1);
320: s = s_loop;
321: }
322: }
323: if (s != NULL) {
324: fs->s = s;
325: return (0);
326: }
327:
328: return (-1);
329: }
330:
331: /* Find window from string. Fills in s, wl, w. */
1.33 nicm 332: static int
1.44 nicm 333: cmd_find_get_window(struct cmd_find_state *fs, const char *window, int only)
1.1 nicm 334: {
335: log_debug("%s: %s", __func__, window);
336:
337: /* Check for window ids starting with @. */
338: if (*window == '@') {
339: fs->w = window_find_by_id_str(window);
340: if (fs->w == NULL)
341: return (-1);
342: return (cmd_find_best_session_with_window(fs));
343: }
344:
345: /* Not a window id, so use the current session. */
346: fs->s = fs->current->s;
347:
348: /* We now only need to find the winlink in this session. */
1.4 nicm 349: if (cmd_find_get_window_with_session(fs, window) == 0)
350: return (0);
351:
1.42 nicm 352: /* Otherwise try as a session itself. */
1.44 nicm 353: if (!only && cmd_find_get_session(fs, window) == 0) {
1.21 nicm 354: fs->wl = fs->s->curw;
355: fs->w = fs->wl->window;
356: if (~fs->flags & CMD_FIND_WINDOW_INDEX)
1.6 nicm 357: fs->idx = fs->wl->idx;
1.4 nicm 358: return (0);
359: }
360:
361: return (-1);
1.1 nicm 362: }
363:
364: /*
365: * Find window from string, assuming it is in given session. Needs s, fills in
366: * wl and w.
367: */
1.33 nicm 368: static int
1.1 nicm 369: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
370: {
371: struct winlink *wl;
372: const char *errstr;
1.9 nicm 373: int idx, n, exact;
1.1 nicm 374: struct session *s;
375:
376: log_debug("%s: %s", __func__, window);
1.9 nicm 377: exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
1.1 nicm 378:
1.21 nicm 379: /*
380: * Start with the current window as the default. So if only an index is
381: * found, the window will be the current.
382: */
383: fs->wl = fs->s->curw;
384: fs->w = fs->wl->window;
385:
1.1 nicm 386: /* Check for window ids starting with @. */
387: if (*window == '@') {
388: fs->w = window_find_by_id_str(window);
389: if (fs->w == NULL || !session_has(fs->s, fs->w))
390: return (-1);
391: return (cmd_find_best_winlink_with_window(fs));
392: }
393:
394: /* Try as an offset. */
1.10 nicm 395: if (!exact && (window[0] == '+' || window[0] == '-')) {
1.1 nicm 396: if (window[1] != '\0')
397: n = strtonum(window + 1, 1, INT_MAX, NULL);
398: else
399: n = 1;
400: s = fs->s;
401: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
402: if (window[0] == '+') {
403: if (INT_MAX - s->curw->idx < n)
404: return (-1);
405: fs->idx = s->curw->idx + n;
406: } else {
1.60 nicm 407: if (n > s->curw->idx)
1.1 nicm 408: return (-1);
409: fs->idx = s->curw->idx - n;
410: }
411: return (0);
412: }
413: if (window[0] == '+')
414: fs->wl = winlink_next_by_number(s->curw, s, n);
415: else
416: fs->wl = winlink_previous_by_number(s->curw, s, n);
417: if (fs->wl != NULL) {
418: fs->idx = fs->wl->idx;
419: fs->w = fs->wl->window;
420: return (0);
421: }
422: }
423:
424: /* Try special characters. */
1.9 nicm 425: if (!exact) {
426: if (strcmp(window, "!") == 0) {
427: fs->wl = TAILQ_FIRST(&fs->s->lastw);
428: if (fs->wl == NULL)
429: return (-1);
430: fs->idx = fs->wl->idx;
431: fs->w = fs->wl->window;
432: return (0);
433: } else if (strcmp(window, "^") == 0) {
434: fs->wl = RB_MIN(winlinks, &fs->s->windows);
435: if (fs->wl == NULL)
436: return (-1);
437: fs->idx = fs->wl->idx;
438: fs->w = fs->wl->window;
439: return (0);
440: } else if (strcmp(window, "$") == 0) {
441: fs->wl = RB_MAX(winlinks, &fs->s->windows);
442: if (fs->wl == NULL)
443: return (-1);
444: fs->idx = fs->wl->idx;
445: fs->w = fs->wl->window;
446: return (0);
447: }
1.1 nicm 448: }
449:
450: /* First see if this is a valid window index in this session. */
1.9 nicm 451: if (window[0] != '+' && window[0] != '-') {
452: idx = strtonum(window, 0, INT_MAX, &errstr);
453: if (errstr == NULL) {
454: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
455: if (fs->wl != NULL) {
456: fs->w = fs->wl->window;
457: return (0);
458: }
1.62 nicm 459: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
460: fs->idx = idx;
461: return (0);
462: }
1.1 nicm 463: }
464: }
465:
466: /* Look for exact matches, error if more than one. */
467: fs->wl = NULL;
468: RB_FOREACH(wl, winlinks, &fs->s->windows) {
469: if (strcmp(window, wl->window->name) == 0) {
470: if (fs->wl != NULL)
471: return (-1);
472: fs->wl = wl;
473: }
474: }
475: if (fs->wl != NULL) {
476: fs->idx = fs->wl->idx;
477: fs->w = fs->wl->window;
478: return (0);
479: }
1.9 nicm 480:
481: /* Stop now if exact only. */
482: if (exact)
483: return (-1);
484:
1.1 nicm 485: /* Try as the start of a window name, error if multiple. */
486: fs->wl = NULL;
487: RB_FOREACH(wl, winlinks, &fs->s->windows) {
488: if (strncmp(window, wl->window->name, strlen(window)) == 0) {
489: if (fs->wl != NULL)
490: return (-1);
491: fs->wl = wl;
492: }
493: }
494: if (fs->wl != NULL) {
495: fs->idx = fs->wl->idx;
496: fs->w = fs->wl->window;
497: return (0);
498: }
499:
500: /* Now look for pattern matches, again error if multiple. */
501: fs->wl = NULL;
502: RB_FOREACH(wl, winlinks, &fs->s->windows) {
503: if (fnmatch(window, wl->window->name, 0) == 0) {
504: if (fs->wl != NULL)
505: return (-1);
506: fs->wl = wl;
507: }
508: }
509: if (fs->wl != NULL) {
510: fs->idx = fs->wl->idx;
511: fs->w = fs->wl->window;
512: return (0);
513: }
514:
515: return (-1);
516: }
517:
518: /* Find pane from string. Fills in s, wl, w, wp. */
1.33 nicm 519: static int
1.44 nicm 520: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane, int only)
1.1 nicm 521: {
522: log_debug("%s: %s", __func__, pane);
523:
524: /* Check for pane ids starting with %. */
525: if (*pane == '%') {
526: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 527: if (fs->wp == NULL)
1.1 nicm 528: return (-1);
529: fs->w = fs->wp->window;
530: return (cmd_find_best_session_with_window(fs));
531: }
532:
1.4 nicm 533: /* Not a pane id, so try the current session and window. */
1.1 nicm 534: fs->s = fs->current->s;
535: fs->wl = fs->current->wl;
536: fs->idx = fs->current->idx;
537: fs->w = fs->current->w;
538:
539: /* We now only need to find the pane in this window. */
1.4 nicm 540: if (cmd_find_get_pane_with_window(fs, pane) == 0)
541: return (0);
542:
1.42 nicm 543: /* Otherwise try as a window itself (this will also try as session). */
1.44 nicm 544: if (!only && cmd_find_get_window(fs, pane, 0) == 0) {
1.4 nicm 545: fs->wp = fs->w->active;
546: return (0);
547: }
548:
549: return (-1);
1.1 nicm 550: }
551:
552: /*
553: * Find pane from string, assuming it is in given session. Needs s, fills in wl
554: * and w and wp.
555: */
1.33 nicm 556: static int
1.1 nicm 557: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
558: {
559: log_debug("%s: %s", __func__, pane);
560:
561: /* Check for pane ids starting with %. */
562: if (*pane == '%') {
563: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 564: if (fs->wp == NULL)
1.1 nicm 565: return (-1);
566: fs->w = fs->wp->window;
567: return (cmd_find_best_winlink_with_window(fs));
568: }
569:
570: /* Otherwise use the current window. */
571: fs->wl = fs->s->curw;
572: fs->idx = fs->wl->idx;
573: fs->w = fs->wl->window;
574:
575: /* Now we just need to look up the pane. */
576: return (cmd_find_get_pane_with_window(fs, pane));
577: }
578:
579: /*
580: * Find pane from string, assuming it is in the given window. Needs w, fills in
581: * wp.
582: */
1.33 nicm 583: static int
1.1 nicm 584: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
585: {
586: const char *errstr;
587: int idx;
588: struct window_pane *wp;
589: u_int n;
590:
591: log_debug("%s: %s", __func__, pane);
592:
593: /* Check for pane ids starting with %. */
594: if (*pane == '%') {
595: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 596: if (fs->wp == NULL)
1.40 nicm 597: return (-1);
598: if (fs->wp->window != fs->w)
1.1 nicm 599: return (-1);
600: return (0);
601: }
602:
603: /* Try special characters. */
604: if (strcmp(pane, "!") == 0) {
605: fs->wp = fs->w->last;
1.56 nicm 606: if (fs->wp == NULL)
1.40 nicm 607: return (-1);
1.1 nicm 608: return (0);
1.12 nicm 609: } else if (strcmp(pane, "{up-of}") == 0) {
1.1 nicm 610: fs->wp = window_pane_find_up(fs->w->active);
1.56 nicm 611: if (fs->wp == NULL)
1.1 nicm 612: return (-1);
613: return (0);
1.12 nicm 614: } else if (strcmp(pane, "{down-of}") == 0) {
1.1 nicm 615: fs->wp = window_pane_find_down(fs->w->active);
1.56 nicm 616: if (fs->wp == NULL)
1.1 nicm 617: return (-1);
618: return (0);
1.12 nicm 619: } else if (strcmp(pane, "{left-of}") == 0) {
1.1 nicm 620: fs->wp = window_pane_find_left(fs->w->active);
1.56 nicm 621: if (fs->wp == NULL)
1.1 nicm 622: return (-1);
623: return (0);
1.12 nicm 624: } else if (strcmp(pane, "{right-of}") == 0) {
1.1 nicm 625: fs->wp = window_pane_find_right(fs->w->active);
1.56 nicm 626: if (fs->wp == NULL)
1.1 nicm 627: return (-1);
628: return (0);
629: }
630:
631: /* Try as an offset. */
632: if (pane[0] == '+' || pane[0] == '-') {
633: if (pane[1] != '\0')
634: n = strtonum(pane + 1, 1, INT_MAX, NULL);
635: else
636: n = 1;
637: wp = fs->w->active;
638: if (pane[0] == '+')
639: fs->wp = window_pane_next_by_number(fs->w, wp, n);
640: else
641: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
1.56 nicm 642: if (fs->wp != NULL)
1.1 nicm 643: return (0);
644: }
645:
646: /* Get pane by index. */
647: idx = strtonum(pane, 0, INT_MAX, &errstr);
648: if (errstr == NULL) {
649: fs->wp = window_pane_at_index(fs->w, idx);
1.56 nicm 650: if (fs->wp != NULL)
1.1 nicm 651: return (0);
652: }
653:
654: /* Try as a description. */
655: fs->wp = window_find_string(fs->w, pane);
1.56 nicm 656: if (fs->wp != NULL)
1.1 nicm 657: return (0);
658:
659: return (-1);
660: }
661:
662: /* Clear state. */
663: void
1.48 nicm 664: cmd_find_clear_state(struct cmd_find_state *fs, int flags)
1.1 nicm 665: {
1.7 nicm 666: memset(fs, 0, sizeof *fs);
1.1 nicm 667:
668: fs->flags = flags;
669:
670: fs->idx = -1;
671: }
672:
1.48 nicm 673: /* Check if state is empty. */
1.34 nicm 674: int
675: cmd_find_empty_state(struct cmd_find_state *fs)
676: {
677: if (fs->s == NULL && fs->wl == NULL && fs->w == NULL && fs->wp == NULL)
678: return (1);
679: return (0);
680: }
681:
1.23 nicm 682: /* Check if a state if valid. */
683: int
684: cmd_find_valid_state(struct cmd_find_state *fs)
685: {
686: struct winlink *wl;
687:
688: if (fs->s == NULL || fs->wl == NULL || fs->w == NULL || fs->wp == NULL)
689: return (0);
690:
691: if (!session_alive(fs->s))
692: return (0);
693:
694: RB_FOREACH(wl, winlinks, &fs->s->windows) {
695: if (wl->window == fs->w && wl == fs->wl)
696: break;
697: }
698: if (wl == NULL)
699: return (0);
700:
701: if (fs->w != fs->wl->window)
702: return (0);
703:
1.56 nicm 704: return (window_has_pane(fs->w, fs->wp));
1.23 nicm 705: }
706:
707: /* Copy a state. */
708: void
709: cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
710: {
711: dst->s = src->s;
712: dst->wl = src->wl;
1.26 nicm 713: dst->idx = src->idx;
714: dst->w = src->w;
1.23 nicm 715: dst->wp = src->wp;
716: }
717:
718: /* Log the result. */
719: void
720: cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
721: {
722: if (fs->s != NULL)
1.63 nicm 723: log_debug("%s: s=$%u %s", prefix, fs->s->id, fs->s->name);
1.23 nicm 724: else
725: log_debug("%s: s=none", prefix);
726: if (fs->wl != NULL) {
727: log_debug("%s: wl=%u %d w=@%u %s", prefix, fs->wl->idx,
728: fs->wl->window == fs->w, fs->w->id, fs->w->name);
729: } else
730: log_debug("%s: wl=none", prefix);
731: if (fs->wp != NULL)
732: log_debug("%s: wp=%%%u", prefix, fs->wp->id);
733: else
734: log_debug("%s: wp=none", prefix);
735: if (fs->idx != -1)
736: log_debug("%s: idx=%d", prefix, fs->idx);
737: else
738: log_debug("%s: idx=none", prefix);
1.27 nicm 739: }
740:
741: /* Find state from a session. */
1.47 nicm 742: void
1.57 nicm 743: cmd_find_from_session(struct cmd_find_state *fs, struct session *s, int flags)
1.27 nicm 744: {
1.57 nicm 745: cmd_find_clear_state(fs, flags);
1.27 nicm 746:
747: fs->s = s;
748: fs->wl = fs->s->curw;
749: fs->w = fs->wl->window;
750: fs->wp = fs->w->active;
1.29 nicm 751:
752: cmd_find_log_state(__func__, fs);
753: }
754:
755: /* Find state from a winlink. */
1.47 nicm 756: void
1.57 nicm 757: cmd_find_from_winlink(struct cmd_find_state *fs, struct winlink *wl, int flags)
1.29 nicm 758: {
1.57 nicm 759: cmd_find_clear_state(fs, flags);
1.29 nicm 760:
1.46 nicm 761: fs->s = wl->session;
1.29 nicm 762: fs->wl = wl;
763: fs->w = wl->window;
764: fs->wp = wl->window->active;
1.27 nicm 765:
766: cmd_find_log_state(__func__, fs);
767: }
768:
1.35 nicm 769: /* Find state from a session and window. */
770: int
771: cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
1.57 nicm 772: struct window *w, int flags)
1.35 nicm 773: {
1.57 nicm 774: cmd_find_clear_state(fs, flags);
1.35 nicm 775:
776: fs->s = s;
777: fs->w = w;
1.49 nicm 778: if (cmd_find_best_winlink_with_window(fs) != 0) {
1.57 nicm 779: cmd_find_clear_state(fs, flags);
1.35 nicm 780: return (-1);
1.49 nicm 781: }
1.35 nicm 782: fs->wp = fs->w->active;
783:
784: cmd_find_log_state(__func__, fs);
785: return (0);
786: }
787:
1.27 nicm 788: /* Find state from a window. */
789: int
1.57 nicm 790: cmd_find_from_window(struct cmd_find_state *fs, struct window *w, int flags)
1.27 nicm 791: {
1.57 nicm 792: cmd_find_clear_state(fs, flags);
1.27 nicm 793:
794: fs->w = w;
1.49 nicm 795: if (cmd_find_best_session_with_window(fs) != 0) {
1.57 nicm 796: cmd_find_clear_state(fs, flags);
1.27 nicm 797: return (-1);
1.49 nicm 798: }
799: if (cmd_find_best_winlink_with_window(fs) != 0) {
1.57 nicm 800: cmd_find_clear_state(fs, flags);
1.27 nicm 801: return (-1);
1.49 nicm 802: }
1.35 nicm 803: fs->wp = fs->w->active;
1.27 nicm 804:
805: cmd_find_log_state(__func__, fs);
806: return (0);
1.47 nicm 807: }
808:
809: /* Find state from a winlink and pane. */
810: void
811: cmd_find_from_winlink_pane(struct cmd_find_state *fs, struct winlink *wl,
1.57 nicm 812: struct window_pane *wp, int flags)
1.47 nicm 813: {
1.57 nicm 814: cmd_find_clear_state(fs, flags);
1.47 nicm 815:
816: fs->s = wl->session;
817: fs->wl = wl;
818: fs->idx = fs->wl->idx;
819: fs->w = fs->wl->window;
820: fs->wp = wp;
821:
822: cmd_find_log_state(__func__, fs);
1.27 nicm 823: }
824:
825: /* Find state from a pane. */
826: int
1.57 nicm 827: cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp, int flags)
1.27 nicm 828: {
1.57 nicm 829: if (cmd_find_from_window(fs, wp->window, flags) != 0)
1.27 nicm 830: return (-1);
831: fs->wp = wp;
832:
833: cmd_find_log_state(__func__, fs);
834: return (0);
1.23 nicm 835: }
836:
1.48 nicm 837: /* Find state from nothing. */
1.31 nicm 838: int
1.57 nicm 839: cmd_find_from_nothing(struct cmd_find_state *fs, int flags)
1.31 nicm 840: {
1.57 nicm 841: cmd_find_clear_state(fs, flags);
1.48 nicm 842:
1.57 nicm 843: fs->s = cmd_find_best_session(NULL, 0, flags);
1.49 nicm 844: if (fs->s == NULL) {
1.57 nicm 845: cmd_find_clear_state(fs, flags);
1.48 nicm 846: return (-1);
1.49 nicm 847: }
1.48 nicm 848: fs->wl = fs->s->curw;
849: fs->idx = fs->wl->idx;
850: fs->w = fs->wl->window;
851: fs->wp = fs->w->active;
852:
853: cmd_find_log_state(__func__, fs);
854: return (0);
855: }
856:
857: /* Find state from mouse. */
858: int
1.57 nicm 859: cmd_find_from_mouse(struct cmd_find_state *fs, struct mouse_event *m, int flags)
1.48 nicm 860: {
1.57 nicm 861: cmd_find_clear_state(fs, flags);
1.48 nicm 862:
863: if (!m->valid)
864: return (-1);
865:
866: fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
1.49 nicm 867: if (fs->wp == NULL) {
1.57 nicm 868: cmd_find_clear_state(fs, flags);
1.48 nicm 869: return (-1);
1.49 nicm 870: }
1.48 nicm 871: fs->w = fs->wl->window;
872:
873: cmd_find_log_state(__func__, fs);
874: return (0);
875: }
876:
877: /* Find state from client. */
878: int
1.57 nicm 879: cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
1.48 nicm 880: {
881: struct session *s;
882: struct winlink *wl;
883: struct window_pane *wp;
884:
885: /* If no client, treat as from nothing. */
886: if (c == NULL)
1.57 nicm 887: return (cmd_find_from_nothing(fs, flags));
1.48 nicm 888:
889: /* If this is an attached client, all done. */
890: if (c->session != NULL) {
1.57 nicm 891: cmd_find_from_session(fs, c->session, flags);
1.48 nicm 892: return (0);
893: }
1.57 nicm 894: cmd_find_clear_state(fs, flags);
1.48 nicm 895:
896: /*
897: * If this is an unattached client running in a pane, we can use that
898: * to limit the list of sessions to those containing that pane.
899: */
1.55 nicm 900: wp = cmd_find_inside_pane(c);
1.48 nicm 901: if (wp == NULL)
902: goto unknown_pane;
903:
904: /* If we have a session in TMUX, see if it has this pane. */
905: s = cmd_find_try_TMUX(c);
906: if (s != NULL) {
907: RB_FOREACH(wl, winlinks, &s->windows) {
908: if (window_has_pane(wl->window, wp))
909: break;
910: }
911: if (wl != NULL) {
1.63 nicm 912: log_debug("%s: session $%u has pane %%%u", __func__,
913: s->id, wp->id);
914:
1.48 nicm 915: fs->s = s;
1.52 nicm 916: fs->wl = s->curw; /* use current session */
1.48 nicm 917: fs->w = fs->wl->window;
918: fs->wp = fs->w->active; /* use active pane */
919:
920: cmd_find_log_state(__func__, fs);
921: return (0);
1.66 ! nicm 922: } else {
1.65 nicm 923: log_debug("%s: session $%u does not have pane %%%u",
924: __func__, s->id, wp->id);
1.48 nicm 925: }
926: }
927:
928: /*
929: * Don't have a session, or it doesn't have this pane. Try all
930: * sessions.
931: */
932: fs->w = wp->window;
933: if (cmd_find_best_session_with_window(fs) != 0) {
1.59 nicm 934: /*
935: * The window may have been destroyed but the pane
936: * still on all_window_panes due to something else
937: * holding a reference.
938: */
939: goto unknown_pane;
1.31 nicm 940: }
1.48 nicm 941: fs->wl = fs->s->curw;
942: fs->w = fs->wl->window;
943: fs->wp = fs->w->active; /* use active pane */
944:
945: cmd_find_log_state(__func__, fs);
1.31 nicm 946: return (0);
1.48 nicm 947:
948: unknown_pane:
949: /*
950: * We're not running in a known pane, but maybe this client has TMUX
951: * in the environment. That'd give us a session.
952: */
953: s = cmd_find_try_TMUX(c);
954: if (s != NULL) {
1.57 nicm 955: cmd_find_from_session(fs, s, flags);
1.48 nicm 956: return (0);
957: }
958:
959: /* Otherwise we need to guess. */
1.57 nicm 960: return (cmd_find_from_nothing(fs, flags));
1.31 nicm 961: }
962:
1.20 nicm 963: /*
964: * Split target into pieces and resolve for the given type. Fills in the given
965: * state. Returns 0 on success or -1 on error.
966: */
967: int
1.48 nicm 968: cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
969: const char *target, enum cmd_find_type type, int flags)
1.1 nicm 970: {
1.20 nicm 971: struct mouse_event *m;
1.48 nicm 972: struct cmd_find_state current;
1.20 nicm 973: char *colon, *period, *copy = NULL;
1.54 nicm 974: const char *session, *window, *pane, *s;
1.44 nicm 975: int window_only = 0, pane_only = 0;
1.1 nicm 976:
1.51 nicm 977: /* Can fail flag implies quiet. */
978: if (flags & CMD_FIND_CANFAIL)
979: flags |= CMD_FIND_QUIET;
980:
1.18 nicm 981: /* Log the arguments. */
1.54 nicm 982: if (type == CMD_FIND_PANE)
983: s = "pane";
984: else if (type == CMD_FIND_WINDOW)
985: s = "window";
986: else if (type == CMD_FIND_SESSION)
987: s = "session";
988: else
989: s = "unknown";
1.18 nicm 990: if (target == NULL)
1.54 nicm 991: log_debug("%s: target none, type %s", __func__, s);
1.18 nicm 992: else
1.54 nicm 993: log_debug("%s: target %s, type %s", __func__, target, s);
1.37 nicm 994: log_debug("%s: item %p, flags %#x", __func__, item, flags);
1.18 nicm 995:
1.24 nicm 996: /* Clear new state. */
1.48 nicm 997: cmd_find_clear_state(fs, flags);
1.24 nicm 998:
1.1 nicm 999: /* Find current state. */
1.34 nicm 1000: if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
1.24 nicm 1001: fs->current = &marked_pane;
1.39 nicm 1002: log_debug("%s: current is marked pane", __func__);
1.45 nicm 1003: } else if (cmd_find_valid_state(&item->shared->current)) {
1004: fs->current = &item->shared->current;
1.39 nicm 1005: log_debug("%s: current is from queue", __func__);
1.57 nicm 1006: } else if (cmd_find_from_client(¤t, item->client, flags) == 0) {
1.48 nicm 1007: fs->current = ¤t;
1008: log_debug("%s: current is from client", __func__);
1.53 nicm 1009: } else {
1010: if (~flags & CMD_FIND_QUIET)
1011: cmdq_error(item, "no current target");
1.50 nicm 1012: goto error;
1.53 nicm 1013: }
1.50 nicm 1014: if (!cmd_find_valid_state(fs->current))
1.34 nicm 1015: fatalx("invalid current find state");
1.1 nicm 1016:
1017: /* An empty or NULL target is the current. */
1018: if (target == NULL || *target == '\0')
1019: goto current;
1020:
1021: /* Mouse target is a plain = or {mouse}. */
1022: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
1.45 nicm 1023: m = &item->shared->mouse;
1.1 nicm 1024: switch (type) {
1025: case CMD_FIND_PANE:
1.20 nicm 1026: fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
1.56 nicm 1027: if (fs->wp != NULL)
1.20 nicm 1028: fs->w = fs->wl->window;
1.1 nicm 1029: break;
1030: case CMD_FIND_WINDOW:
1031: case CMD_FIND_SESSION:
1.20 nicm 1032: fs->wl = cmd_mouse_window(m, &fs->s);
1033: if (fs->wl != NULL) {
1034: fs->w = fs->wl->window;
1035: fs->wp = fs->w->active;
1.1 nicm 1036: }
1037: break;
1038: }
1.20 nicm 1039: if (fs->wp == NULL) {
1.1 nicm 1040: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1041: cmdq_error(item, "no mouse target");
1.1 nicm 1042: goto error;
1043: }
1.18 nicm 1044: goto found;
1.1 nicm 1045: }
1.8 nicm 1046:
1047: /* Marked target is a plain ~ or {marked}. */
1048: if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
1049: if (!server_check_marked()) {
1050: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1051: cmdq_error(item, "no marked target");
1.8 nicm 1052: goto error;
1053: }
1.23 nicm 1054: cmd_find_copy_state(fs, &marked_pane);
1.18 nicm 1055: goto found;
1.8 nicm 1056: }
1.1 nicm 1057:
1058: /* Find separators if they exist. */
1.8 nicm 1059: copy = xstrdup(target);
1.1 nicm 1060: colon = strchr(copy, ':');
1061: if (colon != NULL)
1062: *colon++ = '\0';
1063: if (colon == NULL)
1064: period = strchr(copy, '.');
1065: else
1066: period = strchr(colon, '.');
1067: if (period != NULL)
1068: *period++ = '\0';
1069:
1070: /* Set session, window and pane parts. */
1071: session = window = pane = NULL;
1072: if (colon != NULL && period != NULL) {
1073: session = copy;
1074: window = colon;
1.44 nicm 1075: window_only = 1;
1.1 nicm 1076: pane = period;
1.44 nicm 1077: pane_only = 1;
1.1 nicm 1078: } else if (colon != NULL && period == NULL) {
1079: session = copy;
1080: window = colon;
1.44 nicm 1081: window_only = 1;
1.1 nicm 1082: } else if (colon == NULL && period != NULL) {
1083: window = copy;
1084: pane = period;
1.44 nicm 1085: pane_only = 1;
1.1 nicm 1086: } else {
1087: if (*copy == '$')
1088: session = copy;
1089: else if (*copy == '@')
1090: window = copy;
1091: else if (*copy == '%')
1092: pane = copy;
1093: else {
1094: switch (type) {
1095: case CMD_FIND_SESSION:
1096: session = copy;
1097: break;
1098: case CMD_FIND_WINDOW:
1099: window = copy;
1100: break;
1101: case CMD_FIND_PANE:
1102: pane = copy;
1103: break;
1104: }
1105: }
1.9 nicm 1106: }
1107:
1108: /* Set exact match flags. */
1109: if (session != NULL && *session == '=') {
1110: session++;
1.20 nicm 1111: fs->flags |= CMD_FIND_EXACT_SESSION;
1.9 nicm 1112: }
1113: if (window != NULL && *window == '=') {
1114: window++;
1.20 nicm 1115: fs->flags |= CMD_FIND_EXACT_WINDOW;
1.1 nicm 1116: }
1117:
1118: /* Empty is the same as NULL. */
1119: if (session != NULL && *session == '\0')
1120: session = NULL;
1121: if (window != NULL && *window == '\0')
1122: window = NULL;
1123: if (pane != NULL && *pane == '\0')
1124: pane = NULL;
1125:
1126: /* Map though conversion table. */
1127: if (session != NULL)
1128: session = cmd_find_map_table(cmd_find_session_table, session);
1129: if (window != NULL)
1130: window = cmd_find_map_table(cmd_find_window_table, window);
1131: if (pane != NULL)
1132: pane = cmd_find_map_table(cmd_find_pane_table, pane);
1133:
1.49 nicm 1134: log_debug("%s: target %s (flags %#x): session=%s, window=%s, pane=%s",
1135: __func__, target, flags, session == NULL ? "none" : session,
1.1 nicm 1136: window == NULL ? "none" : window, pane == NULL ? "none" : pane);
1137:
1138: /* No pane is allowed if want an index. */
1139: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
1140: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1141: cmdq_error(item, "can't specify pane here");
1.1 nicm 1142: goto error;
1143: }
1144:
1145: /* If the session isn't NULL, look it up. */
1146: if (session != NULL) {
1147: /* This will fill in session. */
1.20 nicm 1148: if (cmd_find_get_session(fs, session) != 0)
1.1 nicm 1149: goto no_session;
1150:
1151: /* If window and pane are NULL, use that session's current. */
1152: if (window == NULL && pane == NULL) {
1.20 nicm 1153: fs->wl = fs->s->curw;
1154: fs->idx = -1;
1155: fs->w = fs->wl->window;
1156: fs->wp = fs->w->active;
1.1 nicm 1157: goto found;
1158: }
1159:
1160: /* If window is present but pane not, find window in session. */
1161: if (window != NULL && pane == NULL) {
1162: /* This will fill in winlink and window. */
1.20 nicm 1163: if (cmd_find_get_window_with_session(fs, window) != 0)
1.1 nicm 1164: goto no_window;
1.64 nicm 1165: if (fs->wl != NULL) /* can be NULL if index only */
1166: fs->wp = fs->wl->window->active;
1.1 nicm 1167: goto found;
1168: }
1169:
1170: /* If pane is present but window not, find pane. */
1171: if (window == NULL && pane != NULL) {
1172: /* This will fill in winlink and window and pane. */
1.20 nicm 1173: if (cmd_find_get_pane_with_session(fs, pane) != 0)
1.1 nicm 1174: goto no_pane;
1175: goto found;
1176: }
1177:
1178: /*
1179: * If window and pane are present, find both in session. This
1180: * will fill in winlink and window.
1181: */
1.20 nicm 1182: if (cmd_find_get_window_with_session(fs, window) != 0)
1.1 nicm 1183: goto no_window;
1184: /* This will fill in pane. */
1.20 nicm 1185: if (cmd_find_get_pane_with_window(fs, pane) != 0)
1.1 nicm 1186: goto no_pane;
1187: goto found;
1188: }
1189:
1190: /* No session. If window and pane, try them. */
1191: if (window != NULL && pane != NULL) {
1192: /* This will fill in session, winlink and window. */
1.44 nicm 1193: if (cmd_find_get_window(fs, window, window_only) != 0)
1.1 nicm 1194: goto no_window;
1195: /* This will fill in pane. */
1.20 nicm 1196: if (cmd_find_get_pane_with_window(fs, pane) != 0)
1.1 nicm 1197: goto no_pane;
1198: goto found;
1199: }
1200:
1201: /* If just window is present, try it. */
1202: if (window != NULL && pane == NULL) {
1203: /* This will fill in session, winlink and window. */
1.44 nicm 1204: if (cmd_find_get_window(fs, window, window_only) != 0)
1.1 nicm 1205: goto no_window;
1.62 nicm 1206: if (fs->wl != NULL) /* can be NULL if index only */
1207: fs->wp = fs->wl->window->active;
1.1 nicm 1208: goto found;
1209: }
1210:
1211: /* If just pane is present, try it. */
1212: if (window == NULL && pane != NULL) {
1213: /* This will fill in session, winlink, window and pane. */
1.44 nicm 1214: if (cmd_find_get_pane(fs, pane, pane_only) != 0)
1.1 nicm 1215: goto no_pane;
1216: goto found;
1217: }
1218:
1219: current:
1.20 nicm 1220: /* Use the current session. */
1.24 nicm 1221: cmd_find_copy_state(fs, fs->current);
1.1 nicm 1222: if (flags & CMD_FIND_WINDOW_INDEX)
1.24 nicm 1223: fs->idx = -1;
1.20 nicm 1224: goto found;
1.1 nicm 1225:
1226: error:
1.20 nicm 1227: fs->current = NULL;
1.39 nicm 1228: log_debug("%s: error", __func__);
1.20 nicm 1229:
1.1 nicm 1230: free(copy);
1.51 nicm 1231: if (flags & CMD_FIND_CANFAIL)
1232: return (0);
1.20 nicm 1233: return (-1);
1.1 nicm 1234:
1235: found:
1.20 nicm 1236: fs->current = NULL;
1237: cmd_find_log_state(__func__, fs);
1238:
1.1 nicm 1239: free(copy);
1.20 nicm 1240: return (0);
1.1 nicm 1241:
1242: no_session:
1243: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1244: cmdq_error(item, "can't find session %s", session);
1.1 nicm 1245: goto error;
1246:
1247: no_window:
1248: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1249: cmdq_error(item, "can't find window %s", window);
1.1 nicm 1250: goto error;
1251:
1252: no_pane:
1253: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1254: cmdq_error(item, "can't find pane %s", pane);
1.1 nicm 1255: goto error;
1256: }
1257:
1.55 nicm 1258: /* Find the current client. */
1259: static struct client *
1260: cmd_find_current_client(struct cmdq_item *item, int quiet)
1261: {
1262: struct client *c;
1263: struct session *s;
1264: struct window_pane *wp;
1265: struct cmd_find_state fs;
1266:
1267: if (item->client != NULL && item->client->session != NULL)
1268: return (item->client);
1269:
1270: c = NULL;
1271: if ((wp = cmd_find_inside_pane(item->client)) != NULL) {
1272: cmd_find_clear_state(&fs, CMD_FIND_QUIET);
1273: fs.w = wp->window;
1274: if (cmd_find_best_session_with_window(&fs) == 0)
1275: c = cmd_find_best_client(fs.s);
1276: } else {
1277: s = cmd_find_best_session(NULL, 0, CMD_FIND_QUIET);
1278: if (s != NULL)
1279: c = cmd_find_best_client(s);
1280: }
1281: if (c == NULL && !quiet)
1282: cmdq_error(item, "no current client");
1283: log_debug("%s: no target, return %p", __func__, c);
1284: return (c);
1285: }
1286:
1.1 nicm 1287: /* Find the target client or report an error and return NULL. */
1288: struct client *
1.37 nicm 1289: cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
1.1 nicm 1290: {
1291: struct client *c;
1292: char *copy;
1293: size_t size;
1294:
1295: /* A NULL argument means the current client. */
1.55 nicm 1296: if (target == NULL)
1297: return (cmd_find_current_client(item, quiet));
1.1 nicm 1298: copy = xstrdup(target);
1299:
1300: /* Trim a single trailing colon if any. */
1301: size = strlen(copy);
1302: if (size != 0 && copy[size - 1] == ':')
1303: copy[size - 1] = '\0';
1304:
1.43 nicm 1305: /* Check name and path of each client. */
1.1 nicm 1306: TAILQ_FOREACH(c, &clients, entry) {
1.43 nicm 1307: if (c->session == NULL)
1.1 nicm 1308: continue;
1.43 nicm 1309: if (strcmp(copy, c->name) == 0)
1310: break;
1.1 nicm 1311:
1.43 nicm 1312: if (*c->ttyname == '\0')
1313: continue;
1314: if (strcmp(copy, c->ttyname) == 0)
1.1 nicm 1315: break;
1.43 nicm 1316: if (strncmp(c->ttyname, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
1.1 nicm 1317: continue;
1.43 nicm 1318: if (strcmp(copy, c->ttyname + (sizeof _PATH_DEV) - 1) == 0)
1.1 nicm 1319: break;
1320: }
1321:
1322: /* If no client found, report an error. */
1323: if (c == NULL && !quiet)
1.37 nicm 1324: cmdq_error(item, "can't find client %s", copy);
1.1 nicm 1325:
1326: free(copy);
1.16 nicm 1327: log_debug("%s: target %s, return %p", __func__, target, c);
1.1 nicm 1328: return (c);
1329: }
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