Annotation of src/usr.bin/tmux/cmd-find.c, Revision 1.76
1.76 ! nicm 1: /* $OpenBSD: cmd-find.c,v 1.75 2020/04/13 10:59:58 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:
1.67 nicm 38: static void cmd_find_log_state(const char *, struct cmd_find_state *);
1.33 nicm 39: static int cmd_find_get_session(struct cmd_find_state *, const char *);
1.44 nicm 40: static int cmd_find_get_window(struct cmd_find_state *, const char *, int);
1.33 nicm 41: static int cmd_find_get_window_with_session(struct cmd_find_state *,
42: const char *);
1.44 nicm 43: static int cmd_find_get_pane(struct cmd_find_state *, const char *, int);
1.33 nicm 44: static int cmd_find_get_pane_with_session(struct cmd_find_state *,
45: const char *);
46: static int cmd_find_get_pane_with_window(struct cmd_find_state *,
47: const char *);
1.1 nicm 48:
1.33 nicm 49: static const char *cmd_find_session_table[][2] = {
1.1 nicm 50: { NULL, NULL }
51: };
1.33 nicm 52: static const char *cmd_find_window_table[][2] = {
1.1 nicm 53: { "{start}", "^" },
54: { "{last}", "!" },
55: { "{end}", "$" },
56: { "{next}", "+" },
57: { "{previous}", "-" },
58: { NULL, NULL }
59: };
1.33 nicm 60: static const char *cmd_find_pane_table[][2] = {
1.1 nicm 61: { "{last}", "!" },
62: { "{next}", "+" },
63: { "{previous}", "-" },
64: { "{top}", "top" },
65: { "{bottom}", "bottom" },
66: { "{left}", "left" },
67: { "{right}", "right" },
68: { "{top-left}", "top-left" },
69: { "{top-right}", "top-right" },
70: { "{bottom-left}", "bottom-left" },
71: { "{bottom-right}", "bottom-right" },
1.12 nicm 72: { "{up-of}", "{up-of}" },
73: { "{down-of}", "{down-of}" },
74: { "{left-of}", "{left-of}" },
75: { "{right-of}", "{right-of}" },
1.1 nicm 76: { NULL, NULL }
77: };
78:
1.55 nicm 79: /* Find pane containing client if any. */
80: static struct window_pane *
81: cmd_find_inside_pane(struct client *c)
82: {
83: struct window_pane *wp;
1.73 nicm 84: struct environ_entry *envent;
1.55 nicm 85:
86: if (c == NULL)
87: return (NULL);
88:
89: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
1.65 nicm 90: if (wp->fd != -1 && strcmp(wp->tty, c->ttyname) == 0)
1.55 nicm 91: break;
92: }
1.73 nicm 93: if (wp == NULL) {
94: envent = environ_find(c->environ, "TMUX_PANE");
95: if (envent != NULL)
96: wp = window_pane_find_by_id_str(envent->value);
97: }
1.63 nicm 98: if (wp != NULL)
99: log_debug("%s: got pane %%%u (%s)", __func__, wp->id, wp->tty);
1.55 nicm 100: return (wp);
101: }
102:
1.1 nicm 103: /* Is this client better? */
1.33 nicm 104: static int
1.1 nicm 105: cmd_find_client_better(struct client *c, struct client *than)
106: {
107: if (than == NULL)
108: return (1);
109: return (timercmp(&c->activity_time, &than->activity_time, >));
110: }
111:
1.48 nicm 112: /* Find best client for session. */
1.61 nicm 113: struct client *
1.48 nicm 114: cmd_find_best_client(struct session *s)
1.1 nicm 115: {
116: struct client *c_loop, *c;
1.48 nicm 117:
1.68 nicm 118: if (s->attached == 0)
1.48 nicm 119: s = NULL;
1.1 nicm 120:
121: c = NULL;
1.48 nicm 122: TAILQ_FOREACH(c_loop, &clients, entry) {
123: if (c_loop->session == NULL)
124: continue;
125: if (s != NULL && c_loop->session != s)
126: continue;
127: if (cmd_find_client_better(c_loop, c))
128: c = c_loop;
1.1 nicm 129: }
130: return (c);
131: }
132:
133: /* Is this session better? */
1.33 nicm 134: static int
1.1 nicm 135: cmd_find_session_better(struct session *s, struct session *than, int flags)
136: {
137: int attached;
138:
139: if (than == NULL)
140: return (1);
141: if (flags & CMD_FIND_PREFER_UNATTACHED) {
1.68 nicm 142: attached = (than->attached != 0);
143: if (attached && s->attached == 0)
1.1 nicm 144: return (1);
1.68 nicm 145: else if (!attached && s->attached != 0)
1.1 nicm 146: return (0);
147: }
148: return (timercmp(&s->activity_time, &than->activity_time, >));
149: }
150:
151: /* Find best session from a list, or all if list is NULL. */
1.33 nicm 152: static struct session *
1.1 nicm 153: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
154: {
155: struct session *s_loop, *s;
156: u_int i;
157:
1.63 nicm 158: log_debug("%s: %u sessions to try", __func__, ssize);
159:
1.1 nicm 160: s = NULL;
161: if (slist != NULL) {
162: for (i = 0; i < ssize; i++) {
163: if (cmd_find_session_better(slist[i], s, flags))
164: s = slist[i];
165: }
166: } else {
167: RB_FOREACH(s_loop, sessions, &sessions) {
168: if (cmd_find_session_better(s_loop, s, flags))
169: s = s_loop;
170: }
171: }
172: return (s);
173: }
174:
175: /* Find best session and winlink for window. */
1.33 nicm 176: static int
1.1 nicm 177: cmd_find_best_session_with_window(struct cmd_find_state *fs)
178: {
179: struct session **slist = NULL;
180: u_int ssize;
181: struct session *s;
182:
1.63 nicm 183: log_debug("%s: window is @%u", __func__, fs->w->id);
184:
1.1 nicm 185: ssize = 0;
186: RB_FOREACH(s, sessions, &sessions) {
187: if (!session_has(s, fs->w))
188: continue;
1.7 nicm 189: slist = xreallocarray(slist, ssize + 1, sizeof *slist);
1.1 nicm 190: slist[ssize++] = s;
191: }
192: if (ssize == 0)
193: goto fail;
194: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
195: if (fs->s == NULL)
196: goto fail;
1.7 nicm 197: free(slist);
1.1 nicm 198: return (cmd_find_best_winlink_with_window(fs));
199:
200: fail:
201: free(slist);
202: return (-1);
203: }
204:
205: /*
1.65 nicm 206: * Find the best winlink for a window (the current if it contains the window,
1.1 nicm 207: * otherwise the first).
208: */
1.33 nicm 209: static int
1.1 nicm 210: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
211: {
212: struct winlink *wl, *wl_loop;
213:
1.63 nicm 214: log_debug("%s: window is @%u", __func__, fs->w->id);
215:
1.1 nicm 216: wl = NULL;
1.38 nicm 217: if (fs->s->curw != NULL && fs->s->curw->window == fs->w)
1.1 nicm 218: wl = fs->s->curw;
219: else {
220: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
221: if (wl_loop->window == fs->w) {
222: wl = wl_loop;
223: break;
224: }
225: }
226: }
227: if (wl == NULL)
228: return (-1);
229: fs->wl = wl;
230: fs->idx = fs->wl->idx;
231: return (0);
232: }
233:
234: /* Maps string in table. */
1.33 nicm 235: static const char *
1.1 nicm 236: cmd_find_map_table(const char *table[][2], const char *s)
237: {
238: u_int i;
239:
240: for (i = 0; table[i][0] != NULL; i++) {
241: if (strcmp(s, table[i][0]) == 0)
242: return (table[i][1]);
243: }
244: return (s);
245: }
246:
247: /* Find session from string. Fills in s. */
1.33 nicm 248: static int
1.1 nicm 249: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
250: {
251: struct session *s, *s_loop;
1.32 nicm 252: struct client *c;
1.1 nicm 253:
254: log_debug("%s: %s", __func__, session);
255:
256: /* Check for session ids starting with $. */
257: if (*session == '$') {
258: fs->s = session_find_by_id_str(session);
259: if (fs->s == NULL)
260: return (-1);
261: return (0);
262: }
263:
264: /* Look for exactly this session. */
265: fs->s = session_find(session);
266: if (fs->s != NULL)
267: return (0);
268:
1.32 nicm 269: /* Look for as a client. */
270: c = cmd_find_client(NULL, session, 1);
271: if (c != NULL && c->session != NULL) {
272: fs->s = c->session;
273: return (0);
274: }
275:
1.9 nicm 276: /* Stop now if exact only. */
277: if (fs->flags & CMD_FIND_EXACT_SESSION)
278: return (-1);
279:
1.1 nicm 280: /* Otherwise look for prefix. */
281: s = NULL;
282: RB_FOREACH(s_loop, sessions, &sessions) {
283: if (strncmp(session, s_loop->name, strlen(session)) == 0) {
284: if (s != NULL)
285: return (-1);
286: s = s_loop;
287: }
288: }
289: if (s != NULL) {
290: fs->s = s;
291: return (0);
292: }
293:
294: /* Then as a pattern. */
295: s = NULL;
296: RB_FOREACH(s_loop, sessions, &sessions) {
297: if (fnmatch(session, s_loop->name, 0) == 0) {
298: if (s != NULL)
299: return (-1);
300: s = s_loop;
301: }
302: }
303: if (s != NULL) {
304: fs->s = s;
305: return (0);
306: }
307:
308: return (-1);
309: }
310:
311: /* Find window from string. Fills in s, wl, w. */
1.33 nicm 312: static int
1.44 nicm 313: cmd_find_get_window(struct cmd_find_state *fs, const char *window, int only)
1.1 nicm 314: {
315: log_debug("%s: %s", __func__, window);
316:
317: /* Check for window ids starting with @. */
318: if (*window == '@') {
319: fs->w = window_find_by_id_str(window);
320: if (fs->w == NULL)
321: return (-1);
322: return (cmd_find_best_session_with_window(fs));
323: }
324:
325: /* Not a window id, so use the current session. */
326: fs->s = fs->current->s;
327:
328: /* We now only need to find the winlink in this session. */
1.4 nicm 329: if (cmd_find_get_window_with_session(fs, window) == 0)
330: return (0);
331:
1.42 nicm 332: /* Otherwise try as a session itself. */
1.44 nicm 333: if (!only && cmd_find_get_session(fs, window) == 0) {
1.21 nicm 334: fs->wl = fs->s->curw;
335: fs->w = fs->wl->window;
336: if (~fs->flags & CMD_FIND_WINDOW_INDEX)
1.6 nicm 337: fs->idx = fs->wl->idx;
1.4 nicm 338: return (0);
339: }
340:
341: return (-1);
1.1 nicm 342: }
343:
344: /*
345: * Find window from string, assuming it is in given session. Needs s, fills in
346: * wl and w.
347: */
1.33 nicm 348: static int
1.1 nicm 349: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
350: {
351: struct winlink *wl;
352: const char *errstr;
1.9 nicm 353: int idx, n, exact;
1.1 nicm 354: struct session *s;
355:
356: log_debug("%s: %s", __func__, window);
1.9 nicm 357: exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
1.1 nicm 358:
1.21 nicm 359: /*
360: * Start with the current window as the default. So if only an index is
361: * found, the window will be the current.
362: */
363: fs->wl = fs->s->curw;
364: fs->w = fs->wl->window;
365:
1.1 nicm 366: /* Check for window ids starting with @. */
367: if (*window == '@') {
368: fs->w = window_find_by_id_str(window);
369: if (fs->w == NULL || !session_has(fs->s, fs->w))
370: return (-1);
371: return (cmd_find_best_winlink_with_window(fs));
372: }
373:
374: /* Try as an offset. */
1.10 nicm 375: if (!exact && (window[0] == '+' || window[0] == '-')) {
1.1 nicm 376: if (window[1] != '\0')
377: n = strtonum(window + 1, 1, INT_MAX, NULL);
378: else
379: n = 1;
380: s = fs->s;
381: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
382: if (window[0] == '+') {
383: if (INT_MAX - s->curw->idx < n)
384: return (-1);
385: fs->idx = s->curw->idx + n;
386: } else {
1.60 nicm 387: if (n > s->curw->idx)
1.1 nicm 388: return (-1);
389: fs->idx = s->curw->idx - n;
390: }
391: return (0);
392: }
393: if (window[0] == '+')
394: fs->wl = winlink_next_by_number(s->curw, s, n);
395: else
396: fs->wl = winlink_previous_by_number(s->curw, s, n);
397: if (fs->wl != NULL) {
398: fs->idx = fs->wl->idx;
399: fs->w = fs->wl->window;
400: return (0);
401: }
402: }
403:
404: /* Try special characters. */
1.9 nicm 405: if (!exact) {
406: if (strcmp(window, "!") == 0) {
407: fs->wl = TAILQ_FIRST(&fs->s->lastw);
408: if (fs->wl == NULL)
409: return (-1);
410: fs->idx = fs->wl->idx;
411: fs->w = fs->wl->window;
412: return (0);
413: } else if (strcmp(window, "^") == 0) {
414: fs->wl = RB_MIN(winlinks, &fs->s->windows);
415: if (fs->wl == NULL)
416: return (-1);
417: fs->idx = fs->wl->idx;
418: fs->w = fs->wl->window;
419: return (0);
420: } else if (strcmp(window, "$") == 0) {
421: fs->wl = RB_MAX(winlinks, &fs->s->windows);
422: if (fs->wl == NULL)
423: return (-1);
424: fs->idx = fs->wl->idx;
425: fs->w = fs->wl->window;
426: return (0);
427: }
1.1 nicm 428: }
429:
430: /* First see if this is a valid window index in this session. */
1.9 nicm 431: if (window[0] != '+' && window[0] != '-') {
432: idx = strtonum(window, 0, INT_MAX, &errstr);
433: if (errstr == NULL) {
434: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
435: if (fs->wl != NULL) {
1.70 nicm 436: fs->idx = fs->wl->idx;
1.9 nicm 437: fs->w = fs->wl->window;
438: return (0);
439: }
1.62 nicm 440: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
441: fs->idx = idx;
442: return (0);
443: }
1.1 nicm 444: }
445: }
446:
447: /* Look for exact matches, error if more than one. */
448: fs->wl = NULL;
449: RB_FOREACH(wl, winlinks, &fs->s->windows) {
450: if (strcmp(window, wl->window->name) == 0) {
451: if (fs->wl != NULL)
452: return (-1);
453: fs->wl = wl;
454: }
455: }
456: if (fs->wl != NULL) {
457: fs->idx = fs->wl->idx;
458: fs->w = fs->wl->window;
459: return (0);
460: }
1.9 nicm 461:
462: /* Stop now if exact only. */
463: if (exact)
464: return (-1);
465:
1.1 nicm 466: /* Try as the start of a window name, error if multiple. */
467: fs->wl = NULL;
468: RB_FOREACH(wl, winlinks, &fs->s->windows) {
469: if (strncmp(window, wl->window->name, strlen(window)) == 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: }
480:
481: /* Now look for pattern matches, again error if multiple. */
482: fs->wl = NULL;
483: RB_FOREACH(wl, winlinks, &fs->s->windows) {
484: if (fnmatch(window, wl->window->name, 0) == 0) {
485: if (fs->wl != NULL)
486: return (-1);
487: fs->wl = wl;
488: }
489: }
490: if (fs->wl != NULL) {
491: fs->idx = fs->wl->idx;
492: fs->w = fs->wl->window;
493: return (0);
494: }
495:
496: return (-1);
497: }
498:
499: /* Find pane from string. Fills in s, wl, w, wp. */
1.33 nicm 500: static int
1.44 nicm 501: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane, int only)
1.1 nicm 502: {
503: log_debug("%s: %s", __func__, pane);
504:
505: /* Check for pane ids starting with %. */
506: if (*pane == '%') {
507: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 508: if (fs->wp == NULL)
1.1 nicm 509: return (-1);
510: fs->w = fs->wp->window;
511: return (cmd_find_best_session_with_window(fs));
512: }
513:
1.4 nicm 514: /* Not a pane id, so try the current session and window. */
1.1 nicm 515: fs->s = fs->current->s;
516: fs->wl = fs->current->wl;
517: fs->idx = fs->current->idx;
518: fs->w = fs->current->w;
519:
520: /* We now only need to find the pane in this window. */
1.4 nicm 521: if (cmd_find_get_pane_with_window(fs, pane) == 0)
522: return (0);
523:
1.42 nicm 524: /* Otherwise try as a window itself (this will also try as session). */
1.44 nicm 525: if (!only && cmd_find_get_window(fs, pane, 0) == 0) {
1.4 nicm 526: fs->wp = fs->w->active;
527: return (0);
528: }
529:
530: return (-1);
1.1 nicm 531: }
532:
533: /*
534: * Find pane from string, assuming it is in given session. Needs s, fills in wl
535: * and w and wp.
536: */
1.33 nicm 537: static int
1.1 nicm 538: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
539: {
540: log_debug("%s: %s", __func__, pane);
541:
542: /* Check for pane ids starting with %. */
543: if (*pane == '%') {
544: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 545: if (fs->wp == NULL)
1.1 nicm 546: return (-1);
547: fs->w = fs->wp->window;
548: return (cmd_find_best_winlink_with_window(fs));
549: }
550:
551: /* Otherwise use the current window. */
552: fs->wl = fs->s->curw;
553: fs->idx = fs->wl->idx;
554: fs->w = fs->wl->window;
555:
556: /* Now we just need to look up the pane. */
557: return (cmd_find_get_pane_with_window(fs, pane));
558: }
559:
560: /*
561: * Find pane from string, assuming it is in the given window. Needs w, fills in
562: * wp.
563: */
1.33 nicm 564: static int
1.1 nicm 565: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
566: {
567: const char *errstr;
568: int idx;
569: struct window_pane *wp;
570: u_int n;
571:
572: log_debug("%s: %s", __func__, pane);
573:
574: /* Check for pane ids starting with %. */
575: if (*pane == '%') {
576: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 577: if (fs->wp == NULL)
1.40 nicm 578: return (-1);
579: if (fs->wp->window != fs->w)
1.1 nicm 580: return (-1);
581: return (0);
582: }
583:
584: /* Try special characters. */
585: if (strcmp(pane, "!") == 0) {
586: fs->wp = fs->w->last;
1.56 nicm 587: if (fs->wp == NULL)
1.40 nicm 588: return (-1);
1.1 nicm 589: return (0);
1.12 nicm 590: } else if (strcmp(pane, "{up-of}") == 0) {
1.1 nicm 591: fs->wp = window_pane_find_up(fs->w->active);
1.56 nicm 592: if (fs->wp == NULL)
1.1 nicm 593: return (-1);
594: return (0);
1.12 nicm 595: } else if (strcmp(pane, "{down-of}") == 0) {
1.1 nicm 596: fs->wp = window_pane_find_down(fs->w->active);
1.56 nicm 597: if (fs->wp == NULL)
1.1 nicm 598: return (-1);
599: return (0);
1.12 nicm 600: } else if (strcmp(pane, "{left-of}") == 0) {
1.1 nicm 601: fs->wp = window_pane_find_left(fs->w->active);
1.56 nicm 602: if (fs->wp == NULL)
1.1 nicm 603: return (-1);
604: return (0);
1.12 nicm 605: } else if (strcmp(pane, "{right-of}") == 0) {
1.1 nicm 606: fs->wp = window_pane_find_right(fs->w->active);
1.56 nicm 607: if (fs->wp == NULL)
1.1 nicm 608: return (-1);
609: return (0);
610: }
611:
612: /* Try as an offset. */
613: if (pane[0] == '+' || pane[0] == '-') {
614: if (pane[1] != '\0')
615: n = strtonum(pane + 1, 1, INT_MAX, NULL);
616: else
617: n = 1;
618: wp = fs->w->active;
619: if (pane[0] == '+')
620: fs->wp = window_pane_next_by_number(fs->w, wp, n);
621: else
622: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
1.56 nicm 623: if (fs->wp != NULL)
1.1 nicm 624: return (0);
625: }
626:
627: /* Get pane by index. */
628: idx = strtonum(pane, 0, INT_MAX, &errstr);
629: if (errstr == NULL) {
630: fs->wp = window_pane_at_index(fs->w, idx);
1.56 nicm 631: if (fs->wp != NULL)
1.1 nicm 632: return (0);
633: }
634:
635: /* Try as a description. */
636: fs->wp = window_find_string(fs->w, pane);
1.56 nicm 637: if (fs->wp != NULL)
1.1 nicm 638: return (0);
639:
640: return (-1);
641: }
642:
643: /* Clear state. */
644: void
1.48 nicm 645: cmd_find_clear_state(struct cmd_find_state *fs, int flags)
1.1 nicm 646: {
1.7 nicm 647: memset(fs, 0, sizeof *fs);
1.1 nicm 648:
649: fs->flags = flags;
650:
651: fs->idx = -1;
652: }
653:
1.48 nicm 654: /* Check if state is empty. */
1.34 nicm 655: int
656: cmd_find_empty_state(struct cmd_find_state *fs)
657: {
658: if (fs->s == NULL && fs->wl == NULL && fs->w == NULL && fs->wp == NULL)
659: return (1);
660: return (0);
661: }
662:
1.23 nicm 663: /* Check if a state if valid. */
664: int
665: cmd_find_valid_state(struct cmd_find_state *fs)
666: {
667: struct winlink *wl;
668:
669: if (fs->s == NULL || fs->wl == NULL || fs->w == NULL || fs->wp == NULL)
670: return (0);
671:
672: if (!session_alive(fs->s))
673: return (0);
674:
675: RB_FOREACH(wl, winlinks, &fs->s->windows) {
676: if (wl->window == fs->w && wl == fs->wl)
677: break;
678: }
679: if (wl == NULL)
680: return (0);
681:
682: if (fs->w != fs->wl->window)
683: return (0);
684:
1.56 nicm 685: return (window_has_pane(fs->w, fs->wp));
1.23 nicm 686: }
687:
688: /* Copy a state. */
689: void
690: cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
691: {
692: dst->s = src->s;
693: dst->wl = src->wl;
1.26 nicm 694: dst->idx = src->idx;
695: dst->w = src->w;
1.23 nicm 696: dst->wp = src->wp;
697: }
698:
699: /* Log the result. */
1.67 nicm 700: static void
1.23 nicm 701: cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
702: {
703: if (fs->s != NULL)
1.63 nicm 704: log_debug("%s: s=$%u %s", prefix, fs->s->id, fs->s->name);
1.23 nicm 705: else
706: log_debug("%s: s=none", prefix);
707: if (fs->wl != NULL) {
708: log_debug("%s: wl=%u %d w=@%u %s", prefix, fs->wl->idx,
709: fs->wl->window == fs->w, fs->w->id, fs->w->name);
710: } else
711: log_debug("%s: wl=none", prefix);
712: if (fs->wp != NULL)
713: log_debug("%s: wp=%%%u", prefix, fs->wp->id);
714: else
715: log_debug("%s: wp=none", prefix);
716: if (fs->idx != -1)
717: log_debug("%s: idx=%d", prefix, fs->idx);
718: else
719: log_debug("%s: idx=none", prefix);
1.27 nicm 720: }
721:
722: /* Find state from a session. */
1.47 nicm 723: void
1.57 nicm 724: cmd_find_from_session(struct cmd_find_state *fs, struct session *s, int flags)
1.27 nicm 725: {
1.57 nicm 726: cmd_find_clear_state(fs, flags);
1.27 nicm 727:
728: fs->s = s;
729: fs->wl = fs->s->curw;
730: fs->w = fs->wl->window;
731: fs->wp = fs->w->active;
1.29 nicm 732:
733: cmd_find_log_state(__func__, fs);
734: }
735:
736: /* Find state from a winlink. */
1.47 nicm 737: void
1.57 nicm 738: cmd_find_from_winlink(struct cmd_find_state *fs, struct winlink *wl, int flags)
1.29 nicm 739: {
1.57 nicm 740: cmd_find_clear_state(fs, flags);
1.29 nicm 741:
1.46 nicm 742: fs->s = wl->session;
1.29 nicm 743: fs->wl = wl;
744: fs->w = wl->window;
745: fs->wp = wl->window->active;
1.27 nicm 746:
747: cmd_find_log_state(__func__, fs);
748: }
749:
1.35 nicm 750: /* Find state from a session and window. */
751: int
752: cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
1.57 nicm 753: struct window *w, int flags)
1.35 nicm 754: {
1.57 nicm 755: cmd_find_clear_state(fs, flags);
1.35 nicm 756:
757: fs->s = s;
758: fs->w = w;
1.49 nicm 759: if (cmd_find_best_winlink_with_window(fs) != 0) {
1.57 nicm 760: cmd_find_clear_state(fs, flags);
1.35 nicm 761: return (-1);
1.49 nicm 762: }
1.35 nicm 763: fs->wp = fs->w->active;
764:
765: cmd_find_log_state(__func__, fs);
766: return (0);
767: }
768:
1.27 nicm 769: /* Find state from a window. */
770: int
1.57 nicm 771: cmd_find_from_window(struct cmd_find_state *fs, struct window *w, int flags)
1.27 nicm 772: {
1.57 nicm 773: cmd_find_clear_state(fs, flags);
1.27 nicm 774:
775: fs->w = w;
1.49 nicm 776: if (cmd_find_best_session_with_window(fs) != 0) {
1.57 nicm 777: cmd_find_clear_state(fs, flags);
1.27 nicm 778: return (-1);
1.49 nicm 779: }
780: if (cmd_find_best_winlink_with_window(fs) != 0) {
1.57 nicm 781: cmd_find_clear_state(fs, flags);
1.27 nicm 782: return (-1);
1.49 nicm 783: }
1.35 nicm 784: fs->wp = fs->w->active;
1.27 nicm 785:
786: cmd_find_log_state(__func__, fs);
787: return (0);
1.47 nicm 788: }
789:
790: /* Find state from a winlink and pane. */
791: void
792: cmd_find_from_winlink_pane(struct cmd_find_state *fs, struct winlink *wl,
1.57 nicm 793: struct window_pane *wp, int flags)
1.47 nicm 794: {
1.57 nicm 795: cmd_find_clear_state(fs, flags);
1.47 nicm 796:
797: fs->s = wl->session;
798: fs->wl = wl;
799: fs->idx = fs->wl->idx;
800: fs->w = fs->wl->window;
801: fs->wp = wp;
802:
803: cmd_find_log_state(__func__, fs);
1.27 nicm 804: }
805:
806: /* Find state from a pane. */
807: int
1.57 nicm 808: cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp, int flags)
1.27 nicm 809: {
1.57 nicm 810: if (cmd_find_from_window(fs, wp->window, flags) != 0)
1.27 nicm 811: return (-1);
812: fs->wp = wp;
813:
814: cmd_find_log_state(__func__, fs);
815: return (0);
1.23 nicm 816: }
817:
1.48 nicm 818: /* Find state from nothing. */
1.31 nicm 819: int
1.57 nicm 820: cmd_find_from_nothing(struct cmd_find_state *fs, int flags)
1.31 nicm 821: {
1.57 nicm 822: cmd_find_clear_state(fs, flags);
1.48 nicm 823:
1.57 nicm 824: fs->s = cmd_find_best_session(NULL, 0, flags);
1.49 nicm 825: if (fs->s == NULL) {
1.57 nicm 826: cmd_find_clear_state(fs, flags);
1.48 nicm 827: return (-1);
1.49 nicm 828: }
1.48 nicm 829: fs->wl = fs->s->curw;
830: fs->idx = fs->wl->idx;
831: fs->w = fs->wl->window;
832: fs->wp = fs->w->active;
833:
834: cmd_find_log_state(__func__, fs);
835: return (0);
836: }
837:
838: /* Find state from mouse. */
839: int
1.57 nicm 840: cmd_find_from_mouse(struct cmd_find_state *fs, struct mouse_event *m, int flags)
1.48 nicm 841: {
1.57 nicm 842: cmd_find_clear_state(fs, flags);
1.48 nicm 843:
844: if (!m->valid)
845: return (-1);
846:
847: fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
1.49 nicm 848: if (fs->wp == NULL) {
1.57 nicm 849: cmd_find_clear_state(fs, flags);
1.48 nicm 850: return (-1);
1.49 nicm 851: }
1.48 nicm 852: fs->w = fs->wl->window;
853:
854: cmd_find_log_state(__func__, fs);
855: return (0);
856: }
857:
858: /* Find state from client. */
859: int
1.57 nicm 860: cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
1.48 nicm 861: {
862: struct window_pane *wp;
863:
864: /* If no client, treat as from nothing. */
865: if (c == NULL)
1.57 nicm 866: return (cmd_find_from_nothing(fs, flags));
1.48 nicm 867:
868: /* If this is an attached client, all done. */
869: if (c->session != NULL) {
1.57 nicm 870: cmd_find_from_session(fs, c->session, flags);
1.48 nicm 871: return (0);
872: }
1.57 nicm 873: cmd_find_clear_state(fs, flags);
1.48 nicm 874:
875: /*
876: * If this is an unattached client running in a pane, we can use that
877: * to limit the list of sessions to those containing that pane.
878: */
1.55 nicm 879: wp = cmd_find_inside_pane(c);
1.48 nicm 880: if (wp == NULL)
881: goto unknown_pane;
882:
883: /*
884: * Don't have a session, or it doesn't have this pane. Try all
885: * sessions.
886: */
887: fs->w = wp->window;
888: if (cmd_find_best_session_with_window(fs) != 0) {
1.59 nicm 889: /*
890: * The window may have been destroyed but the pane
891: * still on all_window_panes due to something else
892: * holding a reference.
893: */
894: goto unknown_pane;
1.31 nicm 895: }
1.48 nicm 896: fs->wl = fs->s->curw;
897: fs->w = fs->wl->window;
898: fs->wp = fs->w->active; /* use active pane */
899:
900: cmd_find_log_state(__func__, fs);
1.31 nicm 901: return (0);
1.48 nicm 902:
903: unknown_pane:
1.73 nicm 904: /* We can't find the pane so need to guess. */
1.57 nicm 905: return (cmd_find_from_nothing(fs, flags));
1.31 nicm 906: }
907:
1.20 nicm 908: /*
909: * Split target into pieces and resolve for the given type. Fills in the given
910: * state. Returns 0 on success or -1 on error.
911: */
912: int
1.48 nicm 913: cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
914: const char *target, enum cmd_find_type type, int flags)
1.1 nicm 915: {
1.20 nicm 916: struct mouse_event *m;
1.48 nicm 917: struct cmd_find_state current;
1.69 nicm 918: char *colon, *period, *copy = NULL, tmp[256];
1.54 nicm 919: const char *session, *window, *pane, *s;
1.44 nicm 920: int window_only = 0, pane_only = 0;
1.1 nicm 921:
1.51 nicm 922: /* Can fail flag implies quiet. */
923: if (flags & CMD_FIND_CANFAIL)
924: flags |= CMD_FIND_QUIET;
925:
1.18 nicm 926: /* Log the arguments. */
1.54 nicm 927: if (type == CMD_FIND_PANE)
928: s = "pane";
929: else if (type == CMD_FIND_WINDOW)
930: s = "window";
931: else if (type == CMD_FIND_SESSION)
932: s = "session";
933: else
934: s = "unknown";
1.69 nicm 935: *tmp = '\0';
936: if (flags & CMD_FIND_PREFER_UNATTACHED)
937: strlcat(tmp, "PREFER_UNATTACHED,", sizeof tmp);
938: if (flags & CMD_FIND_QUIET)
939: strlcat(tmp, "QUIET,", sizeof tmp);
940: if (flags & CMD_FIND_WINDOW_INDEX)
941: strlcat(tmp, "WINDOW_INDEX,", sizeof tmp);
942: if (flags & CMD_FIND_DEFAULT_MARKED)
943: strlcat(tmp, "DEFAULT_MARKED,", sizeof tmp);
944: if (flags & CMD_FIND_EXACT_SESSION)
945: strlcat(tmp, "EXACT_SESSION,", sizeof tmp);
946: if (flags & CMD_FIND_EXACT_WINDOW)
947: strlcat(tmp, "EXACT_WINDOW,", sizeof tmp);
948: if (flags & CMD_FIND_CANFAIL)
949: strlcat(tmp, "CANFAIL,", sizeof tmp);
950: if (*tmp != '\0')
951: tmp[strlen(tmp) - 1] = '\0';
1.73 nicm 952: else
953: strlcat(tmp, "NONE", sizeof tmp);
1.69 nicm 954: log_debug("%s: target %s, type %s, item %p, flags %s", __func__,
955: target == NULL ? "none" : target, s, item, tmp);
1.18 nicm 956:
1.24 nicm 957: /* Clear new state. */
1.48 nicm 958: cmd_find_clear_state(fs, flags);
1.24 nicm 959:
1.1 nicm 960: /* Find current state. */
1.34 nicm 961: if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
1.24 nicm 962: fs->current = &marked_pane;
1.39 nicm 963: log_debug("%s: current is marked pane", __func__);
1.75 nicm 964: } else if (cmd_find_valid_state(&cmdq_get_shared(item)->current)) {
965: fs->current = &cmdq_get_shared(item)->current;
1.39 nicm 966: log_debug("%s: current is from queue", __func__);
1.75 nicm 967: } else if (cmd_find_from_client(¤t, cmdq_get_client(item),
968: flags) == 0) {
1.48 nicm 969: fs->current = ¤t;
970: log_debug("%s: current is from client", __func__);
1.53 nicm 971: } else {
972: if (~flags & CMD_FIND_QUIET)
973: cmdq_error(item, "no current target");
1.50 nicm 974: goto error;
1.53 nicm 975: }
1.50 nicm 976: if (!cmd_find_valid_state(fs->current))
1.34 nicm 977: fatalx("invalid current find state");
1.1 nicm 978:
979: /* An empty or NULL target is the current. */
980: if (target == NULL || *target == '\0')
981: goto current;
982:
983: /* Mouse target is a plain = or {mouse}. */
984: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
1.76 ! nicm 985: m = &cmdq_get_shared(item)->event.m;
1.1 nicm 986: switch (type) {
987: case CMD_FIND_PANE:
1.20 nicm 988: fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
1.72 nicm 989: if (fs->wp != NULL) {
1.20 nicm 990: fs->w = fs->wl->window;
1.72 nicm 991: break;
992: }
993: /* FALLTHROUGH */
1.1 nicm 994: case CMD_FIND_WINDOW:
995: case CMD_FIND_SESSION:
1.20 nicm 996: fs->wl = cmd_mouse_window(m, &fs->s);
1.72 nicm 997: if (fs->wl == NULL && fs->s != NULL)
998: fs->wl = fs->s->curw;
1.20 nicm 999: if (fs->wl != NULL) {
1000: fs->w = fs->wl->window;
1001: fs->wp = fs->w->active;
1.1 nicm 1002: }
1003: break;
1004: }
1.20 nicm 1005: if (fs->wp == NULL) {
1.1 nicm 1006: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1007: cmdq_error(item, "no mouse target");
1.1 nicm 1008: goto error;
1009: }
1.18 nicm 1010: goto found;
1.1 nicm 1011: }
1.8 nicm 1012:
1013: /* Marked target is a plain ~ or {marked}. */
1014: if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
1015: if (!server_check_marked()) {
1016: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1017: cmdq_error(item, "no marked target");
1.8 nicm 1018: goto error;
1019: }
1.23 nicm 1020: cmd_find_copy_state(fs, &marked_pane);
1.18 nicm 1021: goto found;
1.8 nicm 1022: }
1.1 nicm 1023:
1024: /* Find separators if they exist. */
1.8 nicm 1025: copy = xstrdup(target);
1.1 nicm 1026: colon = strchr(copy, ':');
1027: if (colon != NULL)
1028: *colon++ = '\0';
1029: if (colon == NULL)
1030: period = strchr(copy, '.');
1031: else
1032: period = strchr(colon, '.');
1033: if (period != NULL)
1034: *period++ = '\0';
1035:
1036: /* Set session, window and pane parts. */
1037: session = window = pane = NULL;
1038: if (colon != NULL && period != NULL) {
1039: session = copy;
1040: window = colon;
1.44 nicm 1041: window_only = 1;
1.1 nicm 1042: pane = period;
1.44 nicm 1043: pane_only = 1;
1.1 nicm 1044: } else if (colon != NULL && period == NULL) {
1045: session = copy;
1046: window = colon;
1.44 nicm 1047: window_only = 1;
1.1 nicm 1048: } else if (colon == NULL && period != NULL) {
1049: window = copy;
1050: pane = period;
1.44 nicm 1051: pane_only = 1;
1.1 nicm 1052: } else {
1053: if (*copy == '$')
1054: session = copy;
1055: else if (*copy == '@')
1056: window = copy;
1057: else if (*copy == '%')
1058: pane = copy;
1059: else {
1060: switch (type) {
1061: case CMD_FIND_SESSION:
1062: session = copy;
1063: break;
1064: case CMD_FIND_WINDOW:
1065: window = copy;
1066: break;
1067: case CMD_FIND_PANE:
1068: pane = copy;
1069: break;
1070: }
1071: }
1.9 nicm 1072: }
1073:
1074: /* Set exact match flags. */
1075: if (session != NULL && *session == '=') {
1076: session++;
1.20 nicm 1077: fs->flags |= CMD_FIND_EXACT_SESSION;
1.9 nicm 1078: }
1079: if (window != NULL && *window == '=') {
1080: window++;
1.20 nicm 1081: fs->flags |= CMD_FIND_EXACT_WINDOW;
1.1 nicm 1082: }
1083:
1084: /* Empty is the same as NULL. */
1085: if (session != NULL && *session == '\0')
1086: session = NULL;
1087: if (window != NULL && *window == '\0')
1088: window = NULL;
1089: if (pane != NULL && *pane == '\0')
1090: pane = NULL;
1091:
1092: /* Map though conversion table. */
1093: if (session != NULL)
1094: session = cmd_find_map_table(cmd_find_session_table, session);
1095: if (window != NULL)
1096: window = cmd_find_map_table(cmd_find_window_table, window);
1097: if (pane != NULL)
1098: pane = cmd_find_map_table(cmd_find_pane_table, pane);
1099:
1.69 nicm 1100: if (session != NULL || window != NULL || pane != NULL) {
1101: log_debug("%s: target %s is %s%s%s%s%s%s",
1102: __func__, target,
1103: session == NULL ? "" : "session ",
1104: session == NULL ? "" : session,
1105: window == NULL ? "" : "window ",
1106: window == NULL ? "" : window,
1107: pane == NULL ? "" : "pane ",
1108: pane == NULL ? "" : pane);
1109: }
1.1 nicm 1110:
1111: /* No pane is allowed if want an index. */
1112: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
1113: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1114: cmdq_error(item, "can't specify pane here");
1.1 nicm 1115: goto error;
1116: }
1117:
1118: /* If the session isn't NULL, look it up. */
1119: if (session != NULL) {
1120: /* This will fill in session. */
1.20 nicm 1121: if (cmd_find_get_session(fs, session) != 0)
1.1 nicm 1122: goto no_session;
1123:
1124: /* If window and pane are NULL, use that session's current. */
1125: if (window == NULL && pane == NULL) {
1.20 nicm 1126: fs->wl = fs->s->curw;
1127: fs->idx = -1;
1128: fs->w = fs->wl->window;
1129: fs->wp = fs->w->active;
1.1 nicm 1130: goto found;
1131: }
1132:
1133: /* If window is present but pane not, find window in session. */
1134: if (window != NULL && pane == NULL) {
1135: /* This will fill in winlink and window. */
1.20 nicm 1136: if (cmd_find_get_window_with_session(fs, window) != 0)
1.1 nicm 1137: goto no_window;
1.64 nicm 1138: if (fs->wl != NULL) /* can be NULL if index only */
1139: fs->wp = fs->wl->window->active;
1.1 nicm 1140: goto found;
1141: }
1142:
1143: /* If pane is present but window not, find pane. */
1144: if (window == NULL && pane != NULL) {
1145: /* This will fill in winlink and window and pane. */
1.20 nicm 1146: if (cmd_find_get_pane_with_session(fs, pane) != 0)
1.1 nicm 1147: goto no_pane;
1148: goto found;
1149: }
1150:
1151: /*
1152: * If window and pane are present, find both in session. This
1153: * will fill in winlink and window.
1154: */
1.20 nicm 1155: if (cmd_find_get_window_with_session(fs, window) != 0)
1.1 nicm 1156: goto no_window;
1157: /* This will fill in pane. */
1.20 nicm 1158: if (cmd_find_get_pane_with_window(fs, pane) != 0)
1.1 nicm 1159: goto no_pane;
1160: goto found;
1161: }
1162:
1163: /* No session. If window and pane, try them. */
1164: if (window != NULL && pane != NULL) {
1165: /* This will fill in session, winlink and window. */
1.44 nicm 1166: if (cmd_find_get_window(fs, window, window_only) != 0)
1.1 nicm 1167: goto no_window;
1168: /* This will fill in pane. */
1.20 nicm 1169: if (cmd_find_get_pane_with_window(fs, pane) != 0)
1.1 nicm 1170: goto no_pane;
1171: goto found;
1172: }
1173:
1174: /* If just window is present, try it. */
1175: if (window != NULL && pane == NULL) {
1176: /* This will fill in session, winlink and window. */
1.44 nicm 1177: if (cmd_find_get_window(fs, window, window_only) != 0)
1.1 nicm 1178: goto no_window;
1.62 nicm 1179: if (fs->wl != NULL) /* can be NULL if index only */
1180: fs->wp = fs->wl->window->active;
1.1 nicm 1181: goto found;
1182: }
1183:
1184: /* If just pane is present, try it. */
1185: if (window == NULL && pane != NULL) {
1186: /* This will fill in session, winlink, window and pane. */
1.44 nicm 1187: if (cmd_find_get_pane(fs, pane, pane_only) != 0)
1.1 nicm 1188: goto no_pane;
1189: goto found;
1190: }
1191:
1192: current:
1.20 nicm 1193: /* Use the current session. */
1.24 nicm 1194: cmd_find_copy_state(fs, fs->current);
1.1 nicm 1195: if (flags & CMD_FIND_WINDOW_INDEX)
1.24 nicm 1196: fs->idx = -1;
1.20 nicm 1197: goto found;
1.1 nicm 1198:
1199: error:
1.20 nicm 1200: fs->current = NULL;
1.39 nicm 1201: log_debug("%s: error", __func__);
1.20 nicm 1202:
1.1 nicm 1203: free(copy);
1.51 nicm 1204: if (flags & CMD_FIND_CANFAIL)
1205: return (0);
1.20 nicm 1206: return (-1);
1.1 nicm 1207:
1208: found:
1.20 nicm 1209: fs->current = NULL;
1210: cmd_find_log_state(__func__, fs);
1211:
1.1 nicm 1212: free(copy);
1.20 nicm 1213: return (0);
1.1 nicm 1214:
1215: no_session:
1216: if (~flags & CMD_FIND_QUIET)
1.71 nicm 1217: cmdq_error(item, "can't find session: %s", session);
1.1 nicm 1218: goto error;
1219:
1220: no_window:
1221: if (~flags & CMD_FIND_QUIET)
1.71 nicm 1222: cmdq_error(item, "can't find window: %s", window);
1.1 nicm 1223: goto error;
1224:
1225: no_pane:
1226: if (~flags & CMD_FIND_QUIET)
1.71 nicm 1227: cmdq_error(item, "can't find pane: %s", pane);
1.1 nicm 1228: goto error;
1229: }
1230:
1.55 nicm 1231: /* Find the current client. */
1232: static struct client *
1233: cmd_find_current_client(struct cmdq_item *item, int quiet)
1234: {
1.74 nicm 1235: struct client *c = NULL, *found;
1.55 nicm 1236: struct session *s;
1237: struct window_pane *wp;
1238: struct cmd_find_state fs;
1239:
1.74 nicm 1240: if (item != NULL)
1.75 nicm 1241: c = cmdq_get_client(item);
1.74 nicm 1242: if (c != NULL && c->session != NULL)
1243: return (c);
1.55 nicm 1244:
1.74 nicm 1245: found = NULL;
1246: if (c != NULL && (wp = cmd_find_inside_pane(c)) != NULL) {
1.55 nicm 1247: cmd_find_clear_state(&fs, CMD_FIND_QUIET);
1248: fs.w = wp->window;
1249: if (cmd_find_best_session_with_window(&fs) == 0)
1.74 nicm 1250: found = cmd_find_best_client(fs.s);
1.55 nicm 1251: } else {
1252: s = cmd_find_best_session(NULL, 0, CMD_FIND_QUIET);
1253: if (s != NULL)
1.74 nicm 1254: found = cmd_find_best_client(s);
1.55 nicm 1255: }
1.74 nicm 1256: if (found == NULL && item != NULL && !quiet)
1.55 nicm 1257: cmdq_error(item, "no current client");
1.74 nicm 1258: log_debug("%s: no target, return %p", __func__, found);
1259: return (found);
1.55 nicm 1260: }
1261:
1.1 nicm 1262: /* Find the target client or report an error and return NULL. */
1263: struct client *
1.37 nicm 1264: cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
1.1 nicm 1265: {
1266: struct client *c;
1267: char *copy;
1268: size_t size;
1269:
1270: /* A NULL argument means the current client. */
1.55 nicm 1271: if (target == NULL)
1272: return (cmd_find_current_client(item, quiet));
1.1 nicm 1273: copy = xstrdup(target);
1274:
1275: /* Trim a single trailing colon if any. */
1276: size = strlen(copy);
1277: if (size != 0 && copy[size - 1] == ':')
1278: copy[size - 1] = '\0';
1279:
1.43 nicm 1280: /* Check name and path of each client. */
1.1 nicm 1281: TAILQ_FOREACH(c, &clients, entry) {
1.43 nicm 1282: if (c->session == NULL)
1.1 nicm 1283: continue;
1.43 nicm 1284: if (strcmp(copy, c->name) == 0)
1285: break;
1.1 nicm 1286:
1.43 nicm 1287: if (*c->ttyname == '\0')
1288: continue;
1289: if (strcmp(copy, c->ttyname) == 0)
1.1 nicm 1290: break;
1.43 nicm 1291: if (strncmp(c->ttyname, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
1.1 nicm 1292: continue;
1.43 nicm 1293: if (strcmp(copy, c->ttyname + (sizeof _PATH_DEV) - 1) == 0)
1.1 nicm 1294: break;
1295: }
1296:
1297: /* If no client found, report an error. */
1298: if (c == NULL && !quiet)
1.71 nicm 1299: cmdq_error(item, "can't find client: %s", copy);
1.1 nicm 1300:
1301: free(copy);
1.16 nicm 1302: log_debug("%s: target %s, return %p", __func__, target, c);
1.1 nicm 1303: return (c);
1304: }
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