Annotation of src/usr.bin/tmux/cmd-find.c, Revision 1.68
1.68 ! nicm 1: /* $OpenBSD: cmd-find.c,v 1.67 2018/08/02 11:44:07 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:
1.15 nicm 79: /* Get session from TMUX if present. */
1.33 nicm 80: static struct session *
1.48 nicm 81: cmd_find_try_TMUX(struct client *c)
1.15 nicm 82: {
83: struct environ_entry *envent;
84: char tmp[256];
85: long long pid;
86: u_int session;
1.63 nicm 87: struct session *s;
1.15 nicm 88:
1.17 nicm 89: envent = environ_find(c->environ, "TMUX");
1.15 nicm 90: if (envent == NULL)
91: return (NULL);
92:
93: if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
94: return (NULL);
95: if (pid != getpid())
96: return (NULL);
1.63 nicm 97: log_debug("%s: client %p TMUX %s (session $%u)", __func__, c,
98: envent->value, session);
99:
100: s = session_find_by_id(session);
101: if (s != NULL)
102: log_debug("%s: session $%u still exists", __func__, s->id);
103: return (s);
1.15 nicm 104: }
105:
1.55 nicm 106: /* Find pane containing client if any. */
107: static struct window_pane *
108: cmd_find_inside_pane(struct client *c)
109: {
110: struct window_pane *wp;
111:
112: if (c == NULL)
113: return (NULL);
114:
115: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
1.65 nicm 116: if (wp->fd != -1 && strcmp(wp->tty, c->ttyname) == 0)
1.55 nicm 117: break;
118: }
1.63 nicm 119: if (wp != NULL)
120: log_debug("%s: got pane %%%u (%s)", __func__, wp->id, wp->tty);
1.55 nicm 121: return (wp);
122: }
123:
1.1 nicm 124: /* Is this client better? */
1.33 nicm 125: static int
1.1 nicm 126: cmd_find_client_better(struct client *c, struct client *than)
127: {
128: if (than == NULL)
129: return (1);
130: return (timercmp(&c->activity_time, &than->activity_time, >));
131: }
132:
1.48 nicm 133: /* Find best client for session. */
1.61 nicm 134: struct client *
1.48 nicm 135: cmd_find_best_client(struct session *s)
1.1 nicm 136: {
137: struct client *c_loop, *c;
1.48 nicm 138:
1.68 ! nicm 139: if (s->attached == 0)
1.48 nicm 140: s = NULL;
1.1 nicm 141:
142: c = NULL;
1.48 nicm 143: TAILQ_FOREACH(c_loop, &clients, entry) {
144: if (c_loop->session == NULL)
145: continue;
146: if (s != NULL && c_loop->session != s)
147: continue;
148: if (cmd_find_client_better(c_loop, c))
149: c = c_loop;
1.1 nicm 150: }
151: return (c);
152: }
153:
154: /* Is this session better? */
1.33 nicm 155: static int
1.1 nicm 156: cmd_find_session_better(struct session *s, struct session *than, int flags)
157: {
158: int attached;
159:
160: if (than == NULL)
161: return (1);
162: if (flags & CMD_FIND_PREFER_UNATTACHED) {
1.68 ! nicm 163: attached = (than->attached != 0);
! 164: if (attached && s->attached == 0)
1.1 nicm 165: return (1);
1.68 ! nicm 166: else if (!attached && s->attached != 0)
1.1 nicm 167: return (0);
168: }
169: return (timercmp(&s->activity_time, &than->activity_time, >));
170: }
171:
172: /* Find best session from a list, or all if list is NULL. */
1.33 nicm 173: static struct session *
1.1 nicm 174: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
175: {
176: struct session *s_loop, *s;
177: u_int i;
178:
1.63 nicm 179: log_debug("%s: %u sessions to try", __func__, ssize);
180:
1.1 nicm 181: s = NULL;
182: if (slist != NULL) {
183: for (i = 0; i < ssize; i++) {
184: if (cmd_find_session_better(slist[i], s, flags))
185: s = slist[i];
186: }
187: } else {
188: RB_FOREACH(s_loop, sessions, &sessions) {
189: if (cmd_find_session_better(s_loop, s, flags))
190: s = s_loop;
191: }
192: }
193: return (s);
194: }
195:
196: /* Find best session and winlink for window. */
1.33 nicm 197: static int
1.1 nicm 198: cmd_find_best_session_with_window(struct cmd_find_state *fs)
199: {
200: struct session **slist = NULL;
201: u_int ssize;
202: struct session *s;
203:
1.63 nicm 204: log_debug("%s: window is @%u", __func__, fs->w->id);
205:
1.1 nicm 206: ssize = 0;
207: RB_FOREACH(s, sessions, &sessions) {
208: if (!session_has(s, fs->w))
209: continue;
1.7 nicm 210: slist = xreallocarray(slist, ssize + 1, sizeof *slist);
1.1 nicm 211: slist[ssize++] = s;
212: }
213: if (ssize == 0)
214: goto fail;
215: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
216: if (fs->s == NULL)
217: goto fail;
1.7 nicm 218: free(slist);
1.1 nicm 219: return (cmd_find_best_winlink_with_window(fs));
220:
221: fail:
222: free(slist);
223: return (-1);
224: }
225:
226: /*
1.65 nicm 227: * Find the best winlink for a window (the current if it contains the window,
1.1 nicm 228: * otherwise the first).
229: */
1.33 nicm 230: static int
1.1 nicm 231: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
232: {
233: struct winlink *wl, *wl_loop;
234:
1.63 nicm 235: log_debug("%s: window is @%u", __func__, fs->w->id);
236:
1.1 nicm 237: wl = NULL;
1.38 nicm 238: if (fs->s->curw != NULL && fs->s->curw->window == fs->w)
1.1 nicm 239: wl = fs->s->curw;
240: else {
241: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
242: if (wl_loop->window == fs->w) {
243: wl = wl_loop;
244: break;
245: }
246: }
247: }
248: if (wl == NULL)
249: return (-1);
250: fs->wl = wl;
251: fs->idx = fs->wl->idx;
252: return (0);
253: }
254:
255: /* Maps string in table. */
1.33 nicm 256: static const char *
1.1 nicm 257: cmd_find_map_table(const char *table[][2], const char *s)
258: {
259: u_int i;
260:
261: for (i = 0; table[i][0] != NULL; i++) {
262: if (strcmp(s, table[i][0]) == 0)
263: return (table[i][1]);
264: }
265: return (s);
266: }
267:
268: /* Find session from string. Fills in s. */
1.33 nicm 269: static int
1.1 nicm 270: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
271: {
272: struct session *s, *s_loop;
1.32 nicm 273: struct client *c;
1.1 nicm 274:
275: log_debug("%s: %s", __func__, session);
276:
277: /* Check for session ids starting with $. */
278: if (*session == '$') {
279: fs->s = session_find_by_id_str(session);
280: if (fs->s == NULL)
281: return (-1);
282: return (0);
283: }
284:
285: /* Look for exactly this session. */
286: fs->s = session_find(session);
287: if (fs->s != NULL)
288: return (0);
289:
1.32 nicm 290: /* Look for as a client. */
291: c = cmd_find_client(NULL, session, 1);
292: if (c != NULL && c->session != NULL) {
293: fs->s = c->session;
294: return (0);
295: }
296:
1.9 nicm 297: /* Stop now if exact only. */
298: if (fs->flags & CMD_FIND_EXACT_SESSION)
299: return (-1);
300:
1.1 nicm 301: /* Otherwise look for prefix. */
302: s = NULL;
303: RB_FOREACH(s_loop, sessions, &sessions) {
304: if (strncmp(session, s_loop->name, strlen(session)) == 0) {
305: if (s != NULL)
306: return (-1);
307: s = s_loop;
308: }
309: }
310: if (s != NULL) {
311: fs->s = s;
312: return (0);
313: }
314:
315: /* Then as a pattern. */
316: s = NULL;
317: RB_FOREACH(s_loop, sessions, &sessions) {
318: if (fnmatch(session, s_loop->name, 0) == 0) {
319: if (s != NULL)
320: return (-1);
321: s = s_loop;
322: }
323: }
324: if (s != NULL) {
325: fs->s = s;
326: return (0);
327: }
328:
329: return (-1);
330: }
331:
332: /* Find window from string. Fills in s, wl, w. */
1.33 nicm 333: static int
1.44 nicm 334: cmd_find_get_window(struct cmd_find_state *fs, const char *window, int only)
1.1 nicm 335: {
336: log_debug("%s: %s", __func__, window);
337:
338: /* Check for window ids starting with @. */
339: if (*window == '@') {
340: fs->w = window_find_by_id_str(window);
341: if (fs->w == NULL)
342: return (-1);
343: return (cmd_find_best_session_with_window(fs));
344: }
345:
346: /* Not a window id, so use the current session. */
347: fs->s = fs->current->s;
348:
349: /* We now only need to find the winlink in this session. */
1.4 nicm 350: if (cmd_find_get_window_with_session(fs, window) == 0)
351: return (0);
352:
1.42 nicm 353: /* Otherwise try as a session itself. */
1.44 nicm 354: if (!only && cmd_find_get_session(fs, window) == 0) {
1.21 nicm 355: fs->wl = fs->s->curw;
356: fs->w = fs->wl->window;
357: if (~fs->flags & CMD_FIND_WINDOW_INDEX)
1.6 nicm 358: fs->idx = fs->wl->idx;
1.4 nicm 359: return (0);
360: }
361:
362: return (-1);
1.1 nicm 363: }
364:
365: /*
366: * Find window from string, assuming it is in given session. Needs s, fills in
367: * wl and w.
368: */
1.33 nicm 369: static int
1.1 nicm 370: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
371: {
372: struct winlink *wl;
373: const char *errstr;
1.9 nicm 374: int idx, n, exact;
1.1 nicm 375: struct session *s;
376:
377: log_debug("%s: %s", __func__, window);
1.9 nicm 378: exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
1.1 nicm 379:
1.21 nicm 380: /*
381: * Start with the current window as the default. So if only an index is
382: * found, the window will be the current.
383: */
384: fs->wl = fs->s->curw;
385: fs->w = fs->wl->window;
386:
1.1 nicm 387: /* Check for window ids starting with @. */
388: if (*window == '@') {
389: fs->w = window_find_by_id_str(window);
390: if (fs->w == NULL || !session_has(fs->s, fs->w))
391: return (-1);
392: return (cmd_find_best_winlink_with_window(fs));
393: }
394:
395: /* Try as an offset. */
1.10 nicm 396: if (!exact && (window[0] == '+' || window[0] == '-')) {
1.1 nicm 397: if (window[1] != '\0')
398: n = strtonum(window + 1, 1, INT_MAX, NULL);
399: else
400: n = 1;
401: s = fs->s;
402: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
403: if (window[0] == '+') {
404: if (INT_MAX - s->curw->idx < n)
405: return (-1);
406: fs->idx = s->curw->idx + n;
407: } else {
1.60 nicm 408: if (n > s->curw->idx)
1.1 nicm 409: return (-1);
410: fs->idx = s->curw->idx - n;
411: }
412: return (0);
413: }
414: if (window[0] == '+')
415: fs->wl = winlink_next_by_number(s->curw, s, n);
416: else
417: fs->wl = winlink_previous_by_number(s->curw, s, n);
418: if (fs->wl != NULL) {
419: fs->idx = fs->wl->idx;
420: fs->w = fs->wl->window;
421: return (0);
422: }
423: }
424:
425: /* Try special characters. */
1.9 nicm 426: if (!exact) {
427: if (strcmp(window, "!") == 0) {
428: fs->wl = TAILQ_FIRST(&fs->s->lastw);
429: if (fs->wl == NULL)
430: return (-1);
431: fs->idx = fs->wl->idx;
432: fs->w = fs->wl->window;
433: return (0);
434: } else if (strcmp(window, "^") == 0) {
435: fs->wl = RB_MIN(winlinks, &fs->s->windows);
436: if (fs->wl == NULL)
437: return (-1);
438: fs->idx = fs->wl->idx;
439: fs->w = fs->wl->window;
440: return (0);
441: } else if (strcmp(window, "$") == 0) {
442: fs->wl = RB_MAX(winlinks, &fs->s->windows);
443: if (fs->wl == NULL)
444: return (-1);
445: fs->idx = fs->wl->idx;
446: fs->w = fs->wl->window;
447: return (0);
448: }
1.1 nicm 449: }
450:
451: /* First see if this is a valid window index in this session. */
1.9 nicm 452: if (window[0] != '+' && window[0] != '-') {
453: idx = strtonum(window, 0, INT_MAX, &errstr);
454: if (errstr == NULL) {
455: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
456: if (fs->wl != NULL) {
457: fs->w = fs->wl->window;
458: return (0);
459: }
1.62 nicm 460: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
461: fs->idx = idx;
462: return (0);
463: }
1.1 nicm 464: }
465: }
466:
467: /* Look for exact matches, error if more than one. */
468: fs->wl = NULL;
469: RB_FOREACH(wl, winlinks, &fs->s->windows) {
470: if (strcmp(window, wl->window->name) == 0) {
471: if (fs->wl != NULL)
472: return (-1);
473: fs->wl = wl;
474: }
475: }
476: if (fs->wl != NULL) {
477: fs->idx = fs->wl->idx;
478: fs->w = fs->wl->window;
479: return (0);
480: }
1.9 nicm 481:
482: /* Stop now if exact only. */
483: if (exact)
484: return (-1);
485:
1.1 nicm 486: /* Try as the start of a window name, error if multiple. */
487: fs->wl = NULL;
488: RB_FOREACH(wl, winlinks, &fs->s->windows) {
489: if (strncmp(window, wl->window->name, strlen(window)) == 0) {
490: if (fs->wl != NULL)
491: return (-1);
492: fs->wl = wl;
493: }
494: }
495: if (fs->wl != NULL) {
496: fs->idx = fs->wl->idx;
497: fs->w = fs->wl->window;
498: return (0);
499: }
500:
501: /* Now look for pattern matches, again error if multiple. */
502: fs->wl = NULL;
503: RB_FOREACH(wl, winlinks, &fs->s->windows) {
504: if (fnmatch(window, wl->window->name, 0) == 0) {
505: if (fs->wl != NULL)
506: return (-1);
507: fs->wl = wl;
508: }
509: }
510: if (fs->wl != NULL) {
511: fs->idx = fs->wl->idx;
512: fs->w = fs->wl->window;
513: return (0);
514: }
515:
516: return (-1);
517: }
518:
519: /* Find pane from string. Fills in s, wl, w, wp. */
1.33 nicm 520: static int
1.44 nicm 521: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane, int only)
1.1 nicm 522: {
523: log_debug("%s: %s", __func__, pane);
524:
525: /* Check for pane ids starting with %. */
526: if (*pane == '%') {
527: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 528: if (fs->wp == NULL)
1.1 nicm 529: return (-1);
530: fs->w = fs->wp->window;
531: return (cmd_find_best_session_with_window(fs));
532: }
533:
1.4 nicm 534: /* Not a pane id, so try the current session and window. */
1.1 nicm 535: fs->s = fs->current->s;
536: fs->wl = fs->current->wl;
537: fs->idx = fs->current->idx;
538: fs->w = fs->current->w;
539:
540: /* We now only need to find the pane in this window. */
1.4 nicm 541: if (cmd_find_get_pane_with_window(fs, pane) == 0)
542: return (0);
543:
1.42 nicm 544: /* Otherwise try as a window itself (this will also try as session). */
1.44 nicm 545: if (!only && cmd_find_get_window(fs, pane, 0) == 0) {
1.4 nicm 546: fs->wp = fs->w->active;
547: return (0);
548: }
549:
550: return (-1);
1.1 nicm 551: }
552:
553: /*
554: * Find pane from string, assuming it is in given session. Needs s, fills in wl
555: * and w and wp.
556: */
1.33 nicm 557: static int
1.1 nicm 558: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
559: {
560: log_debug("%s: %s", __func__, pane);
561:
562: /* Check for pane ids starting with %. */
563: if (*pane == '%') {
564: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 565: if (fs->wp == NULL)
1.1 nicm 566: return (-1);
567: fs->w = fs->wp->window;
568: return (cmd_find_best_winlink_with_window(fs));
569: }
570:
571: /* Otherwise use the current window. */
572: fs->wl = fs->s->curw;
573: fs->idx = fs->wl->idx;
574: fs->w = fs->wl->window;
575:
576: /* Now we just need to look up the pane. */
577: return (cmd_find_get_pane_with_window(fs, pane));
578: }
579:
580: /*
581: * Find pane from string, assuming it is in the given window. Needs w, fills in
582: * wp.
583: */
1.33 nicm 584: static int
1.1 nicm 585: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
586: {
587: const char *errstr;
588: int idx;
589: struct window_pane *wp;
590: u_int n;
591:
592: log_debug("%s: %s", __func__, pane);
593:
594: /* Check for pane ids starting with %. */
595: if (*pane == '%') {
596: fs->wp = window_pane_find_by_id_str(pane);
1.56 nicm 597: if (fs->wp == NULL)
1.40 nicm 598: return (-1);
599: if (fs->wp->window != fs->w)
1.1 nicm 600: return (-1);
601: return (0);
602: }
603:
604: /* Try special characters. */
605: if (strcmp(pane, "!") == 0) {
606: fs->wp = fs->w->last;
1.56 nicm 607: if (fs->wp == NULL)
1.40 nicm 608: return (-1);
1.1 nicm 609: return (0);
1.12 nicm 610: } else if (strcmp(pane, "{up-of}") == 0) {
1.1 nicm 611: fs->wp = window_pane_find_up(fs->w->active);
1.56 nicm 612: if (fs->wp == NULL)
1.1 nicm 613: return (-1);
614: return (0);
1.12 nicm 615: } else if (strcmp(pane, "{down-of}") == 0) {
1.1 nicm 616: fs->wp = window_pane_find_down(fs->w->active);
1.56 nicm 617: if (fs->wp == NULL)
1.1 nicm 618: return (-1);
619: return (0);
1.12 nicm 620: } else if (strcmp(pane, "{left-of}") == 0) {
1.1 nicm 621: fs->wp = window_pane_find_left(fs->w->active);
1.56 nicm 622: if (fs->wp == NULL)
1.1 nicm 623: return (-1);
624: return (0);
1.12 nicm 625: } else if (strcmp(pane, "{right-of}") == 0) {
1.1 nicm 626: fs->wp = window_pane_find_right(fs->w->active);
1.56 nicm 627: if (fs->wp == NULL)
1.1 nicm 628: return (-1);
629: return (0);
630: }
631:
632: /* Try as an offset. */
633: if (pane[0] == '+' || pane[0] == '-') {
634: if (pane[1] != '\0')
635: n = strtonum(pane + 1, 1, INT_MAX, NULL);
636: else
637: n = 1;
638: wp = fs->w->active;
639: if (pane[0] == '+')
640: fs->wp = window_pane_next_by_number(fs->w, wp, n);
641: else
642: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
1.56 nicm 643: if (fs->wp != NULL)
1.1 nicm 644: return (0);
645: }
646:
647: /* Get pane by index. */
648: idx = strtonum(pane, 0, INT_MAX, &errstr);
649: if (errstr == NULL) {
650: fs->wp = window_pane_at_index(fs->w, idx);
1.56 nicm 651: if (fs->wp != NULL)
1.1 nicm 652: return (0);
653: }
654:
655: /* Try as a description. */
656: fs->wp = window_find_string(fs->w, pane);
1.56 nicm 657: if (fs->wp != NULL)
1.1 nicm 658: return (0);
659:
660: return (-1);
661: }
662:
663: /* Clear state. */
664: void
1.48 nicm 665: cmd_find_clear_state(struct cmd_find_state *fs, int flags)
1.1 nicm 666: {
1.7 nicm 667: memset(fs, 0, sizeof *fs);
1.1 nicm 668:
669: fs->flags = flags;
670:
671: fs->idx = -1;
672: }
673:
1.48 nicm 674: /* Check if state is empty. */
1.34 nicm 675: int
676: cmd_find_empty_state(struct cmd_find_state *fs)
677: {
678: if (fs->s == NULL && fs->wl == NULL && fs->w == NULL && fs->wp == NULL)
679: return (1);
680: return (0);
681: }
682:
1.23 nicm 683: /* Check if a state if valid. */
684: int
685: cmd_find_valid_state(struct cmd_find_state *fs)
686: {
687: struct winlink *wl;
688:
689: if (fs->s == NULL || fs->wl == NULL || fs->w == NULL || fs->wp == NULL)
690: return (0);
691:
692: if (!session_alive(fs->s))
693: return (0);
694:
695: RB_FOREACH(wl, winlinks, &fs->s->windows) {
696: if (wl->window == fs->w && wl == fs->wl)
697: break;
698: }
699: if (wl == NULL)
700: return (0);
701:
702: if (fs->w != fs->wl->window)
703: return (0);
704:
1.56 nicm 705: return (window_has_pane(fs->w, fs->wp));
1.23 nicm 706: }
707:
708: /* Copy a state. */
709: void
710: cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
711: {
712: dst->s = src->s;
713: dst->wl = src->wl;
1.26 nicm 714: dst->idx = src->idx;
715: dst->w = src->w;
1.23 nicm 716: dst->wp = src->wp;
717: }
718:
719: /* Log the result. */
1.67 nicm 720: static void
1.23 nicm 721: cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
722: {
723: if (fs->s != NULL)
1.63 nicm 724: log_debug("%s: s=$%u %s", prefix, fs->s->id, fs->s->name);
1.23 nicm 725: else
726: log_debug("%s: s=none", prefix);
727: if (fs->wl != NULL) {
728: log_debug("%s: wl=%u %d w=@%u %s", prefix, fs->wl->idx,
729: fs->wl->window == fs->w, fs->w->id, fs->w->name);
730: } else
731: log_debug("%s: wl=none", prefix);
732: if (fs->wp != NULL)
733: log_debug("%s: wp=%%%u", prefix, fs->wp->id);
734: else
735: log_debug("%s: wp=none", prefix);
736: if (fs->idx != -1)
737: log_debug("%s: idx=%d", prefix, fs->idx);
738: else
739: log_debug("%s: idx=none", prefix);
1.27 nicm 740: }
741:
742: /* Find state from a session. */
1.47 nicm 743: void
1.57 nicm 744: cmd_find_from_session(struct cmd_find_state *fs, struct session *s, int flags)
1.27 nicm 745: {
1.57 nicm 746: cmd_find_clear_state(fs, flags);
1.27 nicm 747:
748: fs->s = s;
749: fs->wl = fs->s->curw;
750: fs->w = fs->wl->window;
751: fs->wp = fs->w->active;
1.29 nicm 752:
753: cmd_find_log_state(__func__, fs);
754: }
755:
756: /* Find state from a winlink. */
1.47 nicm 757: void
1.57 nicm 758: cmd_find_from_winlink(struct cmd_find_state *fs, struct winlink *wl, int flags)
1.29 nicm 759: {
1.57 nicm 760: cmd_find_clear_state(fs, flags);
1.29 nicm 761:
1.46 nicm 762: fs->s = wl->session;
1.29 nicm 763: fs->wl = wl;
764: fs->w = wl->window;
765: fs->wp = wl->window->active;
1.27 nicm 766:
767: cmd_find_log_state(__func__, fs);
768: }
769:
1.35 nicm 770: /* Find state from a session and window. */
771: int
772: cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
1.57 nicm 773: struct window *w, int flags)
1.35 nicm 774: {
1.57 nicm 775: cmd_find_clear_state(fs, flags);
1.35 nicm 776:
777: fs->s = s;
778: fs->w = w;
1.49 nicm 779: if (cmd_find_best_winlink_with_window(fs) != 0) {
1.57 nicm 780: cmd_find_clear_state(fs, flags);
1.35 nicm 781: return (-1);
1.49 nicm 782: }
1.35 nicm 783: fs->wp = fs->w->active;
784:
785: cmd_find_log_state(__func__, fs);
786: return (0);
787: }
788:
1.27 nicm 789: /* Find state from a window. */
790: int
1.57 nicm 791: cmd_find_from_window(struct cmd_find_state *fs, struct window *w, int flags)
1.27 nicm 792: {
1.57 nicm 793: cmd_find_clear_state(fs, flags);
1.27 nicm 794:
795: fs->w = w;
1.49 nicm 796: if (cmd_find_best_session_with_window(fs) != 0) {
1.57 nicm 797: cmd_find_clear_state(fs, flags);
1.27 nicm 798: return (-1);
1.49 nicm 799: }
800: if (cmd_find_best_winlink_with_window(fs) != 0) {
1.57 nicm 801: cmd_find_clear_state(fs, flags);
1.27 nicm 802: return (-1);
1.49 nicm 803: }
1.35 nicm 804: fs->wp = fs->w->active;
1.27 nicm 805:
806: cmd_find_log_state(__func__, fs);
807: return (0);
1.47 nicm 808: }
809:
810: /* Find state from a winlink and pane. */
811: void
812: cmd_find_from_winlink_pane(struct cmd_find_state *fs, struct winlink *wl,
1.57 nicm 813: struct window_pane *wp, int flags)
1.47 nicm 814: {
1.57 nicm 815: cmd_find_clear_state(fs, flags);
1.47 nicm 816:
817: fs->s = wl->session;
818: fs->wl = wl;
819: fs->idx = fs->wl->idx;
820: fs->w = fs->wl->window;
821: fs->wp = wp;
822:
823: cmd_find_log_state(__func__, fs);
1.27 nicm 824: }
825:
826: /* Find state from a pane. */
827: int
1.57 nicm 828: cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp, int flags)
1.27 nicm 829: {
1.57 nicm 830: if (cmd_find_from_window(fs, wp->window, flags) != 0)
1.27 nicm 831: return (-1);
832: fs->wp = wp;
833:
834: cmd_find_log_state(__func__, fs);
835: return (0);
1.23 nicm 836: }
837:
1.48 nicm 838: /* Find state from nothing. */
1.31 nicm 839: int
1.57 nicm 840: cmd_find_from_nothing(struct cmd_find_state *fs, int flags)
1.31 nicm 841: {
1.57 nicm 842: cmd_find_clear_state(fs, flags);
1.48 nicm 843:
1.57 nicm 844: fs->s = cmd_find_best_session(NULL, 0, flags);
1.49 nicm 845: if (fs->s == NULL) {
1.57 nicm 846: cmd_find_clear_state(fs, flags);
1.48 nicm 847: return (-1);
1.49 nicm 848: }
1.48 nicm 849: fs->wl = fs->s->curw;
850: fs->idx = fs->wl->idx;
851: fs->w = fs->wl->window;
852: fs->wp = fs->w->active;
853:
854: cmd_find_log_state(__func__, fs);
855: return (0);
856: }
857:
858: /* Find state from mouse. */
859: int
1.57 nicm 860: cmd_find_from_mouse(struct cmd_find_state *fs, struct mouse_event *m, int flags)
1.48 nicm 861: {
1.57 nicm 862: cmd_find_clear_state(fs, flags);
1.48 nicm 863:
864: if (!m->valid)
865: return (-1);
866:
867: fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
1.49 nicm 868: if (fs->wp == NULL) {
1.57 nicm 869: cmd_find_clear_state(fs, flags);
1.48 nicm 870: return (-1);
1.49 nicm 871: }
1.48 nicm 872: fs->w = fs->wl->window;
873:
874: cmd_find_log_state(__func__, fs);
875: return (0);
876: }
877:
878: /* Find state from client. */
879: int
1.57 nicm 880: cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
1.48 nicm 881: {
882: struct session *s;
883: struct winlink *wl;
884: struct window_pane *wp;
885:
886: /* If no client, treat as from nothing. */
887: if (c == NULL)
1.57 nicm 888: return (cmd_find_from_nothing(fs, flags));
1.48 nicm 889:
890: /* If this is an attached client, all done. */
891: if (c->session != NULL) {
1.57 nicm 892: cmd_find_from_session(fs, c->session, flags);
1.48 nicm 893: return (0);
894: }
1.57 nicm 895: cmd_find_clear_state(fs, flags);
1.48 nicm 896:
897: /*
898: * If this is an unattached client running in a pane, we can use that
899: * to limit the list of sessions to those containing that pane.
900: */
1.55 nicm 901: wp = cmd_find_inside_pane(c);
1.48 nicm 902: if (wp == NULL)
903: goto unknown_pane;
904:
905: /* If we have a session in TMUX, see if it has this pane. */
906: s = cmd_find_try_TMUX(c);
907: if (s != NULL) {
908: RB_FOREACH(wl, winlinks, &s->windows) {
909: if (window_has_pane(wl->window, wp))
910: break;
911: }
912: if (wl != NULL) {
1.63 nicm 913: log_debug("%s: session $%u has pane %%%u", __func__,
914: s->id, wp->id);
915:
1.48 nicm 916: fs->s = s;
1.52 nicm 917: fs->wl = s->curw; /* use current session */
1.48 nicm 918: fs->w = fs->wl->window;
919: fs->wp = fs->w->active; /* use active pane */
920:
921: cmd_find_log_state(__func__, fs);
922: return (0);
1.66 nicm 923: } else {
1.65 nicm 924: log_debug("%s: session $%u does not have pane %%%u",
925: __func__, s->id, wp->id);
1.48 nicm 926: }
927: }
928:
929: /*
930: * Don't have a session, or it doesn't have this pane. Try all
931: * sessions.
932: */
933: fs->w = wp->window;
934: if (cmd_find_best_session_with_window(fs) != 0) {
1.59 nicm 935: /*
936: * The window may have been destroyed but the pane
937: * still on all_window_panes due to something else
938: * holding a reference.
939: */
940: goto unknown_pane;
1.31 nicm 941: }
1.48 nicm 942: fs->wl = fs->s->curw;
943: fs->w = fs->wl->window;
944: fs->wp = fs->w->active; /* use active pane */
945:
946: cmd_find_log_state(__func__, fs);
1.31 nicm 947: return (0);
1.48 nicm 948:
949: unknown_pane:
950: /*
951: * We're not running in a known pane, but maybe this client has TMUX
952: * in the environment. That'd give us a session.
953: */
954: s = cmd_find_try_TMUX(c);
955: if (s != NULL) {
1.57 nicm 956: cmd_find_from_session(fs, s, flags);
1.48 nicm 957: return (0);
958: }
959:
960: /* Otherwise we need to guess. */
1.57 nicm 961: return (cmd_find_from_nothing(fs, flags));
1.31 nicm 962: }
963:
1.20 nicm 964: /*
965: * Split target into pieces and resolve for the given type. Fills in the given
966: * state. Returns 0 on success or -1 on error.
967: */
968: int
1.48 nicm 969: cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
970: const char *target, enum cmd_find_type type, int flags)
1.1 nicm 971: {
1.20 nicm 972: struct mouse_event *m;
1.48 nicm 973: struct cmd_find_state current;
1.20 nicm 974: char *colon, *period, *copy = NULL;
1.54 nicm 975: const char *session, *window, *pane, *s;
1.44 nicm 976: int window_only = 0, pane_only = 0;
1.1 nicm 977:
1.51 nicm 978: /* Can fail flag implies quiet. */
979: if (flags & CMD_FIND_CANFAIL)
980: flags |= CMD_FIND_QUIET;
981:
1.18 nicm 982: /* Log the arguments. */
1.54 nicm 983: if (type == CMD_FIND_PANE)
984: s = "pane";
985: else if (type == CMD_FIND_WINDOW)
986: s = "window";
987: else if (type == CMD_FIND_SESSION)
988: s = "session";
989: else
990: s = "unknown";
1.18 nicm 991: if (target == NULL)
1.54 nicm 992: log_debug("%s: target none, type %s", __func__, s);
1.18 nicm 993: else
1.54 nicm 994: log_debug("%s: target %s, type %s", __func__, target, s);
1.37 nicm 995: log_debug("%s: item %p, flags %#x", __func__, item, flags);
1.18 nicm 996:
1.24 nicm 997: /* Clear new state. */
1.48 nicm 998: cmd_find_clear_state(fs, flags);
1.24 nicm 999:
1.1 nicm 1000: /* Find current state. */
1.34 nicm 1001: if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
1.24 nicm 1002: fs->current = &marked_pane;
1.39 nicm 1003: log_debug("%s: current is marked pane", __func__);
1.45 nicm 1004: } else if (cmd_find_valid_state(&item->shared->current)) {
1005: fs->current = &item->shared->current;
1.39 nicm 1006: log_debug("%s: current is from queue", __func__);
1.57 nicm 1007: } else if (cmd_find_from_client(¤t, item->client, flags) == 0) {
1.48 nicm 1008: fs->current = ¤t;
1009: log_debug("%s: current is from client", __func__);
1.53 nicm 1010: } else {
1011: if (~flags & CMD_FIND_QUIET)
1012: cmdq_error(item, "no current target");
1.50 nicm 1013: goto error;
1.53 nicm 1014: }
1.50 nicm 1015: if (!cmd_find_valid_state(fs->current))
1.34 nicm 1016: fatalx("invalid current find state");
1.1 nicm 1017:
1018: /* An empty or NULL target is the current. */
1019: if (target == NULL || *target == '\0')
1020: goto current;
1021:
1022: /* Mouse target is a plain = or {mouse}. */
1023: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
1.45 nicm 1024: m = &item->shared->mouse;
1.1 nicm 1025: switch (type) {
1026: case CMD_FIND_PANE:
1.20 nicm 1027: fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
1.56 nicm 1028: if (fs->wp != NULL)
1.20 nicm 1029: fs->w = fs->wl->window;
1.1 nicm 1030: break;
1031: case CMD_FIND_WINDOW:
1032: case CMD_FIND_SESSION:
1.20 nicm 1033: fs->wl = cmd_mouse_window(m, &fs->s);
1034: if (fs->wl != NULL) {
1035: fs->w = fs->wl->window;
1036: fs->wp = fs->w->active;
1.1 nicm 1037: }
1038: break;
1039: }
1.20 nicm 1040: if (fs->wp == NULL) {
1.1 nicm 1041: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1042: cmdq_error(item, "no mouse target");
1.1 nicm 1043: goto error;
1044: }
1.18 nicm 1045: goto found;
1.1 nicm 1046: }
1.8 nicm 1047:
1048: /* Marked target is a plain ~ or {marked}. */
1049: if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
1050: if (!server_check_marked()) {
1051: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1052: cmdq_error(item, "no marked target");
1.8 nicm 1053: goto error;
1054: }
1.23 nicm 1055: cmd_find_copy_state(fs, &marked_pane);
1.18 nicm 1056: goto found;
1.8 nicm 1057: }
1.1 nicm 1058:
1059: /* Find separators if they exist. */
1.8 nicm 1060: copy = xstrdup(target);
1.1 nicm 1061: colon = strchr(copy, ':');
1062: if (colon != NULL)
1063: *colon++ = '\0';
1064: if (colon == NULL)
1065: period = strchr(copy, '.');
1066: else
1067: period = strchr(colon, '.');
1068: if (period != NULL)
1069: *period++ = '\0';
1070:
1071: /* Set session, window and pane parts. */
1072: session = window = pane = NULL;
1073: if (colon != NULL && period != NULL) {
1074: session = copy;
1075: window = colon;
1.44 nicm 1076: window_only = 1;
1.1 nicm 1077: pane = period;
1.44 nicm 1078: pane_only = 1;
1.1 nicm 1079: } else if (colon != NULL && period == NULL) {
1080: session = copy;
1081: window = colon;
1.44 nicm 1082: window_only = 1;
1.1 nicm 1083: } else if (colon == NULL && period != NULL) {
1084: window = copy;
1085: pane = period;
1.44 nicm 1086: pane_only = 1;
1.1 nicm 1087: } else {
1088: if (*copy == '$')
1089: session = copy;
1090: else if (*copy == '@')
1091: window = copy;
1092: else if (*copy == '%')
1093: pane = copy;
1094: else {
1095: switch (type) {
1096: case CMD_FIND_SESSION:
1097: session = copy;
1098: break;
1099: case CMD_FIND_WINDOW:
1100: window = copy;
1101: break;
1102: case CMD_FIND_PANE:
1103: pane = copy;
1104: break;
1105: }
1106: }
1.9 nicm 1107: }
1108:
1109: /* Set exact match flags. */
1110: if (session != NULL && *session == '=') {
1111: session++;
1.20 nicm 1112: fs->flags |= CMD_FIND_EXACT_SESSION;
1.9 nicm 1113: }
1114: if (window != NULL && *window == '=') {
1115: window++;
1.20 nicm 1116: fs->flags |= CMD_FIND_EXACT_WINDOW;
1.1 nicm 1117: }
1118:
1119: /* Empty is the same as NULL. */
1120: if (session != NULL && *session == '\0')
1121: session = NULL;
1122: if (window != NULL && *window == '\0')
1123: window = NULL;
1124: if (pane != NULL && *pane == '\0')
1125: pane = NULL;
1126:
1127: /* Map though conversion table. */
1128: if (session != NULL)
1129: session = cmd_find_map_table(cmd_find_session_table, session);
1130: if (window != NULL)
1131: window = cmd_find_map_table(cmd_find_window_table, window);
1132: if (pane != NULL)
1133: pane = cmd_find_map_table(cmd_find_pane_table, pane);
1134:
1.49 nicm 1135: log_debug("%s: target %s (flags %#x): session=%s, window=%s, pane=%s",
1136: __func__, target, flags, session == NULL ? "none" : session,
1.1 nicm 1137: window == NULL ? "none" : window, pane == NULL ? "none" : pane);
1138:
1139: /* No pane is allowed if want an index. */
1140: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
1141: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1142: cmdq_error(item, "can't specify pane here");
1.1 nicm 1143: goto error;
1144: }
1145:
1146: /* If the session isn't NULL, look it up. */
1147: if (session != NULL) {
1148: /* This will fill in session. */
1.20 nicm 1149: if (cmd_find_get_session(fs, session) != 0)
1.1 nicm 1150: goto no_session;
1151:
1152: /* If window and pane are NULL, use that session's current. */
1153: if (window == NULL && pane == NULL) {
1.20 nicm 1154: fs->wl = fs->s->curw;
1155: fs->idx = -1;
1156: fs->w = fs->wl->window;
1157: fs->wp = fs->w->active;
1.1 nicm 1158: goto found;
1159: }
1160:
1161: /* If window is present but pane not, find window in session. */
1162: if (window != NULL && pane == NULL) {
1163: /* This will fill in winlink and window. */
1.20 nicm 1164: if (cmd_find_get_window_with_session(fs, window) != 0)
1.1 nicm 1165: goto no_window;
1.64 nicm 1166: if (fs->wl != NULL) /* can be NULL if index only */
1167: fs->wp = fs->wl->window->active;
1.1 nicm 1168: goto found;
1169: }
1170:
1171: /* If pane is present but window not, find pane. */
1172: if (window == NULL && pane != NULL) {
1173: /* This will fill in winlink and window and pane. */
1.20 nicm 1174: if (cmd_find_get_pane_with_session(fs, pane) != 0)
1.1 nicm 1175: goto no_pane;
1176: goto found;
1177: }
1178:
1179: /*
1180: * If window and pane are present, find both in session. This
1181: * will fill in winlink and window.
1182: */
1.20 nicm 1183: if (cmd_find_get_window_with_session(fs, window) != 0)
1.1 nicm 1184: goto no_window;
1185: /* This will fill in pane. */
1.20 nicm 1186: if (cmd_find_get_pane_with_window(fs, pane) != 0)
1.1 nicm 1187: goto no_pane;
1188: goto found;
1189: }
1190:
1191: /* No session. If window and pane, try them. */
1192: if (window != NULL && pane != NULL) {
1193: /* This will fill in session, winlink and window. */
1.44 nicm 1194: if (cmd_find_get_window(fs, window, window_only) != 0)
1.1 nicm 1195: goto no_window;
1196: /* This will fill in pane. */
1.20 nicm 1197: if (cmd_find_get_pane_with_window(fs, pane) != 0)
1.1 nicm 1198: goto no_pane;
1199: goto found;
1200: }
1201:
1202: /* If just window is present, try it. */
1203: if (window != NULL && pane == NULL) {
1204: /* This will fill in session, winlink and window. */
1.44 nicm 1205: if (cmd_find_get_window(fs, window, window_only) != 0)
1.1 nicm 1206: goto no_window;
1.62 nicm 1207: if (fs->wl != NULL) /* can be NULL if index only */
1208: fs->wp = fs->wl->window->active;
1.1 nicm 1209: goto found;
1210: }
1211:
1212: /* If just pane is present, try it. */
1213: if (window == NULL && pane != NULL) {
1214: /* This will fill in session, winlink, window and pane. */
1.44 nicm 1215: if (cmd_find_get_pane(fs, pane, pane_only) != 0)
1.1 nicm 1216: goto no_pane;
1217: goto found;
1218: }
1219:
1220: current:
1.20 nicm 1221: /* Use the current session. */
1.24 nicm 1222: cmd_find_copy_state(fs, fs->current);
1.1 nicm 1223: if (flags & CMD_FIND_WINDOW_INDEX)
1.24 nicm 1224: fs->idx = -1;
1.20 nicm 1225: goto found;
1.1 nicm 1226:
1227: error:
1.20 nicm 1228: fs->current = NULL;
1.39 nicm 1229: log_debug("%s: error", __func__);
1.20 nicm 1230:
1.1 nicm 1231: free(copy);
1.51 nicm 1232: if (flags & CMD_FIND_CANFAIL)
1233: return (0);
1.20 nicm 1234: return (-1);
1.1 nicm 1235:
1236: found:
1.20 nicm 1237: fs->current = NULL;
1238: cmd_find_log_state(__func__, fs);
1239:
1.1 nicm 1240: free(copy);
1.20 nicm 1241: return (0);
1.1 nicm 1242:
1243: no_session:
1244: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1245: cmdq_error(item, "can't find session %s", session);
1.1 nicm 1246: goto error;
1247:
1248: no_window:
1249: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1250: cmdq_error(item, "can't find window %s", window);
1.1 nicm 1251: goto error;
1252:
1253: no_pane:
1254: if (~flags & CMD_FIND_QUIET)
1.37 nicm 1255: cmdq_error(item, "can't find pane %s", pane);
1.1 nicm 1256: goto error;
1257: }
1258:
1.55 nicm 1259: /* Find the current client. */
1260: static struct client *
1261: cmd_find_current_client(struct cmdq_item *item, int quiet)
1262: {
1263: struct client *c;
1264: struct session *s;
1265: struct window_pane *wp;
1266: struct cmd_find_state fs;
1267:
1268: if (item->client != NULL && item->client->session != NULL)
1269: return (item->client);
1270:
1271: c = NULL;
1272: if ((wp = cmd_find_inside_pane(item->client)) != NULL) {
1273: cmd_find_clear_state(&fs, CMD_FIND_QUIET);
1274: fs.w = wp->window;
1275: if (cmd_find_best_session_with_window(&fs) == 0)
1276: c = cmd_find_best_client(fs.s);
1277: } else {
1278: s = cmd_find_best_session(NULL, 0, CMD_FIND_QUIET);
1279: if (s != NULL)
1280: c = cmd_find_best_client(s);
1281: }
1282: if (c == NULL && !quiet)
1283: cmdq_error(item, "no current client");
1284: log_debug("%s: no target, return %p", __func__, c);
1285: return (c);
1286: }
1287:
1.1 nicm 1288: /* Find the target client or report an error and return NULL. */
1289: struct client *
1.37 nicm 1290: cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
1.1 nicm 1291: {
1292: struct client *c;
1293: char *copy;
1294: size_t size;
1295:
1296: /* A NULL argument means the current client. */
1.55 nicm 1297: if (target == NULL)
1298: return (cmd_find_current_client(item, quiet));
1.1 nicm 1299: copy = xstrdup(target);
1300:
1301: /* Trim a single trailing colon if any. */
1302: size = strlen(copy);
1303: if (size != 0 && copy[size - 1] == ':')
1304: copy[size - 1] = '\0';
1305:
1.43 nicm 1306: /* Check name and path of each client. */
1.1 nicm 1307: TAILQ_FOREACH(c, &clients, entry) {
1.43 nicm 1308: if (c->session == NULL)
1.1 nicm 1309: continue;
1.43 nicm 1310: if (strcmp(copy, c->name) == 0)
1311: break;
1.1 nicm 1312:
1.43 nicm 1313: if (*c->ttyname == '\0')
1314: continue;
1315: if (strcmp(copy, c->ttyname) == 0)
1.1 nicm 1316: break;
1.43 nicm 1317: if (strncmp(c->ttyname, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
1.1 nicm 1318: continue;
1.43 nicm 1319: if (strcmp(copy, c->ttyname + (sizeof _PATH_DEV) - 1) == 0)
1.1 nicm 1320: break;
1321: }
1322:
1323: /* If no client found, report an error. */
1324: if (c == NULL && !quiet)
1.37 nicm 1325: cmdq_error(item, "can't find client %s", copy);
1.1 nicm 1326:
1327: free(copy);
1.16 nicm 1328: log_debug("%s: target %s, return %p", __func__, target, c);
1.1 nicm 1329: return (c);
1330: }
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