Annotation of src/usr.bin/tmux/cmd.c, Revision 1.82
1.82 ! nicm 1: /* $OpenBSD: cmd.c,v 1.81 2013/03/25 10:04:44 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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: #include <sys/time.h>
21:
1.5 nicm 22: #include <fnmatch.h>
23: #include <paths.h>
1.61 nicm 24: #include <pwd.h>
1.1 nicm 25: #include <stdlib.h>
26: #include <string.h>
27: #include <unistd.h>
28:
29: #include "tmux.h"
30:
31: const struct cmd_entry *cmd_table[] = {
32: &cmd_attach_session_entry,
33: &cmd_bind_key_entry,
34: &cmd_break_pane_entry,
1.34 nicm 35: &cmd_capture_pane_entry,
1.42 nicm 36: &cmd_choose_buffer_entry,
1.15 nicm 37: &cmd_choose_client_entry,
1.70 nicm 38: &cmd_choose_list_entry,
1.1 nicm 39: &cmd_choose_session_entry,
1.67 nicm 40: &cmd_choose_tree_entry,
1.1 nicm 41: &cmd_choose_window_entry,
42: &cmd_clear_history_entry,
43: &cmd_clock_mode_entry,
44: &cmd_command_prompt_entry,
45: &cmd_confirm_before_entry,
46: &cmd_copy_mode_entry,
47: &cmd_delete_buffer_entry,
48: &cmd_detach_client_entry,
1.7 nicm 49: &cmd_display_message_entry,
1.16 nicm 50: &cmd_display_panes_entry,
1.1 nicm 51: &cmd_find_window_entry,
52: &cmd_has_session_entry,
1.4 nicm 53: &cmd_if_shell_entry,
1.37 nicm 54: &cmd_join_pane_entry,
1.1 nicm 55: &cmd_kill_pane_entry,
56: &cmd_kill_server_entry,
57: &cmd_kill_session_entry,
58: &cmd_kill_window_entry,
1.45 nicm 59: &cmd_last_pane_entry,
1.1 nicm 60: &cmd_last_window_entry,
61: &cmd_link_window_entry,
62: &cmd_list_buffers_entry,
63: &cmd_list_clients_entry,
64: &cmd_list_commands_entry,
65: &cmd_list_keys_entry,
1.23 nicm 66: &cmd_list_panes_entry,
1.1 nicm 67: &cmd_list_sessions_entry,
68: &cmd_list_windows_entry,
69: &cmd_load_buffer_entry,
1.19 nicm 70: &cmd_lock_client_entry,
1.1 nicm 71: &cmd_lock_server_entry,
1.19 nicm 72: &cmd_lock_session_entry,
1.63 nicm 73: &cmd_move_pane_entry,
1.1 nicm 74: &cmd_move_window_entry,
75: &cmd_new_session_entry,
76: &cmd_new_window_entry,
77: &cmd_next_layout_entry,
78: &cmd_next_window_entry,
79: &cmd_paste_buffer_entry,
1.24 nicm 80: &cmd_pipe_pane_entry,
1.1 nicm 81: &cmd_previous_layout_entry,
82: &cmd_previous_window_entry,
83: &cmd_refresh_client_entry,
84: &cmd_rename_session_entry,
85: &cmd_rename_window_entry,
86: &cmd_resize_pane_entry,
1.56 nicm 87: &cmd_respawn_pane_entry,
1.1 nicm 88: &cmd_respawn_window_entry,
89: &cmd_rotate_window_entry,
1.17 nicm 90: &cmd_run_shell_entry,
1.1 nicm 91: &cmd_save_buffer_entry,
92: &cmd_select_layout_entry,
93: &cmd_select_pane_entry,
94: &cmd_select_window_entry,
95: &cmd_send_keys_entry,
96: &cmd_send_prefix_entry,
97: &cmd_server_info_entry,
98: &cmd_set_buffer_entry,
1.13 nicm 99: &cmd_set_environment_entry,
1.1 nicm 100: &cmd_set_option_entry,
101: &cmd_set_window_option_entry,
102: &cmd_show_buffer_entry,
1.13 nicm 103: &cmd_show_environment_entry,
1.32 nicm 104: &cmd_show_messages_entry,
1.1 nicm 105: &cmd_show_options_entry,
106: &cmd_show_window_options_entry,
107: &cmd_source_file_entry,
108: &cmd_split_window_entry,
109: &cmd_start_server_entry,
110: &cmd_suspend_client_entry,
111: &cmd_swap_pane_entry,
112: &cmd_swap_window_entry,
113: &cmd_switch_client_entry,
114: &cmd_unbind_key_entry,
115: &cmd_unlink_window_entry,
1.82 ! nicm 116: &cmd_wait_for_entry,
1.1 nicm 117: NULL
118: };
119:
1.72 nicm 120: int cmd_session_better(struct session *, struct session *, int);
1.47 nicm 121: struct session *cmd_choose_session_list(struct sessionslist *);
1.52 nicm 122: struct session *cmd_choose_session(int);
1.31 nicm 123: struct client *cmd_choose_client(struct clients *);
1.5 nicm 124: struct client *cmd_lookup_client(const char *);
125: struct session *cmd_lookup_session(const char *, int *);
126: struct winlink *cmd_lookup_window(struct session *, const char *, int *);
1.8 nicm 127: int cmd_lookup_index(struct session *, const char *, int *);
1.51 nicm 128: struct window_pane *cmd_lookup_paneid(const char *);
1.60 nicm 129: struct winlink *cmd_lookup_winlink_windowid(struct session *, const char *);
130: struct window *cmd_lookup_windowid(const char *);
1.80 nicm 131: struct session *cmd_window_session(struct cmd_q *, struct window *,
132: struct winlink **);
1.43 nicm 133: struct winlink *cmd_find_window_offset(const char *, struct session *, int *);
134: int cmd_find_index_offset(const char *, struct session *, int *);
1.51 nicm 135: struct window_pane *cmd_find_pane_offset(const char *, struct winlink *);
1.5 nicm 136:
1.10 nicm 137: int
138: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
139: {
140: size_t arglen;
141: int i;
142:
143: *buf = '\0';
144: for (i = 0; i < argc; i++) {
145: if (strlcpy(buf, argv[i], len) >= len)
146: return (-1);
147: arglen = strlen(argv[i]) + 1;
148: buf += arglen;
149: len -= arglen;
150: }
151:
152: return (0);
153: }
154:
155: int
156: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
157: {
158: int i;
159: size_t arglen;
160:
161: if (argc == 0)
162: return (0);
163: *argv = xcalloc(argc, sizeof **argv);
164:
165: buf[len - 1] = '\0';
166: for (i = 0; i < argc; i++) {
167: if (len == 0) {
168: cmd_free_argv(argc, *argv);
169: return (-1);
170: }
171:
172: arglen = strlen(buf) + 1;
173: (*argv)[i] = xstrdup(buf);
174: buf += arglen;
175: len -= arglen;
176: }
177:
178: return (0);
1.46 nicm 179: }
180:
181: char **
1.49 nicm 182: cmd_copy_argv(int argc, char *const *argv)
1.46 nicm 183: {
184: char **new_argv;
185: int i;
186:
187: if (argc == 0)
188: return (NULL);
189: new_argv = xcalloc(argc, sizeof *new_argv);
190: for (i = 0; i < argc; i++) {
191: if (argv[i] != NULL)
192: new_argv[i] = xstrdup(argv[i]);
193: }
194: return (new_argv);
1.10 nicm 195: }
196:
197: void
198: cmd_free_argv(int argc, char **argv)
199: {
200: int i;
201:
202: if (argc == 0)
1.35 nicm 203: return;
1.68 nicm 204: for (i = 0; i < argc; i++)
205: free(argv[i]);
206: free(argv);
1.10 nicm 207: }
208:
1.1 nicm 209: struct cmd *
1.80 nicm 210: cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
1.1 nicm 211: {
212: const struct cmd_entry **entryp, *entry;
1.27 deraadt 213: struct cmd *cmd;
1.49 nicm 214: struct args *args;
1.1 nicm 215: char s[BUFSIZ];
1.49 nicm 216: int ambiguous = 0;
1.1 nicm 217:
218: *cause = NULL;
1.2 nicm 219: if (argc == 0) {
220: xasprintf(cause, "no command");
1.1 nicm 221: return (NULL);
1.2 nicm 222: }
1.1 nicm 223:
224: entry = NULL;
225: for (entryp = cmd_table; *entryp != NULL; entryp++) {
226: if ((*entryp)->alias != NULL &&
227: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 228: ambiguous = 0;
1.1 nicm 229: entry = *entryp;
230: break;
231: }
232:
233: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
234: continue;
235: if (entry != NULL)
1.3 nicm 236: ambiguous = 1;
1.1 nicm 237: entry = *entryp;
238:
239: /* Bail now if an exact match. */
240: if (strcmp(entry->name, argv[0]) == 0)
241: break;
242: }
1.3 nicm 243: if (ambiguous)
244: goto ambiguous;
1.1 nicm 245: if (entry == NULL) {
246: xasprintf(cause, "unknown command: %s", argv[0]);
247: return (NULL);
248: }
249:
1.49 nicm 250: args = args_parse(entry->args_template, argc, argv);
251: if (args == NULL)
252: goto usage;
253: if (entry->args_lower != -1 && args->argc < entry->args_lower)
254: goto usage;
255: if (entry->args_upper != -1 && args->argc > entry->args_upper)
256: goto usage;
257: if (entry->check != NULL && entry->check(args) != 0)
258: goto usage;
1.1 nicm 259:
1.80 nicm 260: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 261: cmd->entry = entry;
1.49 nicm 262: cmd->args = args;
1.80 nicm 263:
264: if (file != NULL)
265: cmd->file = xstrdup(file);
266: cmd->line = line;
267:
1.1 nicm 268: return (cmd);
269:
270: ambiguous:
271: *s = '\0';
272: for (entryp = cmd_table; *entryp != NULL; entryp++) {
273: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
274: continue;
275: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
276: break;
277: if (strlcat(s, ", ", sizeof s) >= sizeof s)
278: break;
279: }
280: s[strlen(s) - 2] = '\0';
281: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
282: return (NULL);
283:
284: usage:
1.49 nicm 285: if (args != NULL)
286: args_free(args);
1.1 nicm 287: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
288: return (NULL);
289: }
290:
291: size_t
292: cmd_print(struct cmd *cmd, char *buf, size_t len)
293: {
1.49 nicm 294: size_t off, used;
295:
296: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
297: if (off < len) {
298: used = args_print(cmd->args, buf + off, len - off);
299: if (used == 0)
1.64 nicm 300: off--;
301: else
1.49 nicm 302: off += used;
1.64 nicm 303: buf[off] = '\0';
1.49 nicm 304: }
305: return (off);
1.1 nicm 306: }
307:
1.5 nicm 308: /*
309: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 310: * context has one; 2) the most recently used session containing the pty of the
311: * calling client, if any; 3) the session specified in the TMUX variable from
312: * the environment (as passed from the client); 4) the most recently used
313: * session from all sessions.
1.5 nicm 314: */
1.1 nicm 315: struct session *
1.80 nicm 316: cmd_current_session(struct cmd_q *cmdq, int prefer_unattached)
1.1 nicm 317: {
1.80 nicm 318: struct msg_command_data *data = cmdq->msgdata;
319: struct client *c = cmdq->client;
1.5 nicm 320: struct session *s;
1.47 nicm 321: struct sessionslist ss;
1.11 nicm 322: struct winlink *wl;
323: struct window_pane *wp;
1.80 nicm 324: const char *path;
1.11 nicm 325: int found;
1.1 nicm 326:
1.80 nicm 327: if (c != NULL && c->session != NULL)
328: return (c->session);
1.1 nicm 329:
1.11 nicm 330: /*
1.81 nicm 331: * If the name of the calling client's pty is known, build a list of
332: * the sessions that contain it and if any choose either the first or
333: * the newest.
1.11 nicm 334: */
1.80 nicm 335: path = c == NULL ? NULL : c->tty.path;
336: if (path != NULL) {
1.11 nicm 337: ARRAY_INIT(&ss);
1.47 nicm 338: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 339: found = 0;
340: RB_FOREACH(wl, winlinks, &s->windows) {
341: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
1.80 nicm 342: if (strcmp(wp->tty, path) == 0) {
1.11 nicm 343: found = 1;
344: break;
345: }
346: }
347: if (found)
348: break;
349: }
350: if (found)
351: ARRAY_ADD(&ss, s);
352: }
353:
1.47 nicm 354: s = cmd_choose_session_list(&ss);
1.11 nicm 355: ARRAY_FREE(&ss);
356: if (s != NULL)
357: return (s);
358: }
359:
360: /* Use the session from the TMUX environment variable. */
1.50 nicm 361: if (data != NULL && data->pid == getpid() && data->idx != -1) {
1.47 nicm 362: s = session_find_by_index(data->idx);
363: if (s != NULL)
364: return (s);
365: }
366:
1.52 nicm 367: return (cmd_choose_session(prefer_unattached));
1.47 nicm 368: }
369:
1.72 nicm 370: /* Is this session better? */
371: int
372: cmd_session_better(struct session *s, struct session *best,
373: int prefer_unattached)
374: {
375: if (best == NULL)
1.74 nicm 376: return (1);
1.72 nicm 377: if (prefer_unattached) {
378: if (!(best->flags & SESSION_UNATTACHED) &&
379: (s->flags & SESSION_UNATTACHED))
1.74 nicm 380: return (1);
1.72 nicm 381: else if ((best->flags & SESSION_UNATTACHED) &&
382: !(s->flags & SESSION_UNATTACHED))
1.74 nicm 383: return (0);
1.72 nicm 384: }
385: return (timercmp(&s->activity_time, &best->activity_time, >));
386: }
387:
1.52 nicm 388: /*
389: * Find the most recently used session, preferring unattached if the flag is
390: * set.
391: */
1.47 nicm 392: struct session *
1.52 nicm 393: cmd_choose_session(int prefer_unattached)
1.47 nicm 394: {
1.72 nicm 395: struct session *s, *best;
1.47 nicm 396:
1.72 nicm 397: best = NULL;
1.47 nicm 398: RB_FOREACH(s, sessions, &sessions) {
1.72 nicm 399: if (cmd_session_better(s, best, prefer_unattached))
400: best = s;
1.47 nicm 401: }
1.72 nicm 402: return (best);
1.5 nicm 403: }
404:
1.31 nicm 405: /* Find the most recently used session from a list. */
1.5 nicm 406: struct session *
1.47 nicm 407: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 408: {
1.31 nicm 409: struct session *s, *sbest;
1.5 nicm 410: struct timeval *tv = NULL;
411: u_int i;
412:
1.31 nicm 413: sbest = NULL;
1.11 nicm 414: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
415: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 416: continue;
417:
1.31 nicm 418: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
419: sbest = s;
420: tv = &s->activity_time;
1.1 nicm 421: }
422: }
1.5 nicm 423:
1.31 nicm 424: return (sbest);
1.1 nicm 425: }
426:
1.30 nicm 427: /*
428: * Find the current client. First try the current client if set, then pick the
1.31 nicm 429: * most recently used of the clients attached to the current session if any,
430: * then of all clients.
1.30 nicm 431: */
432: struct client *
1.80 nicm 433: cmd_current_client(struct cmd_q *cmdq)
1.30 nicm 434: {
435: struct session *s;
436: struct client *c;
437: struct clients cc;
438: u_int i;
439:
1.80 nicm 440: if (cmdq->client != NULL && cmdq->client->session != NULL)
441: return (cmdq->client);
1.30 nicm 442:
443: /*
444: * No current client set. Find the current session and return the
445: * newest of its clients.
446: */
1.80 nicm 447: s = cmd_current_session(cmdq, 0);
1.30 nicm 448: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
449: ARRAY_INIT(&cc);
450: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
451: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
452: continue;
453: if (s == c->session)
454: ARRAY_ADD(&cc, c);
455: }
456:
1.31 nicm 457: c = cmd_choose_client(&cc);
1.30 nicm 458: ARRAY_FREE(&cc);
459: if (c != NULL)
460: return (c);
461: }
462:
1.31 nicm 463: return (cmd_choose_client(&clients));
1.30 nicm 464: }
465:
1.31 nicm 466: /* Choose the most recently used client from a list. */
1.20 nicm 467: struct client *
1.31 nicm 468: cmd_choose_client(struct clients *cc)
1.20 nicm 469: {
1.31 nicm 470: struct client *c, *cbest;
1.20 nicm 471: struct timeval *tv = NULL;
472: u_int i;
473:
1.31 nicm 474: cbest = NULL;
1.30 nicm 475: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
476: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 477: continue;
478: if (c->session == NULL)
479: continue;
480:
1.31 nicm 481: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
482: cbest = c;
483: tv = &c->activity_time;
1.20 nicm 484: }
485: }
486:
1.31 nicm 487: return (cbest);
1.20 nicm 488: }
489:
1.5 nicm 490: /* Find the target client or report an error and return NULL. */
1.1 nicm 491: struct client *
1.80 nicm 492: cmd_find_client(struct cmd_q *cmdq, const char *arg, int quiet)
1.1 nicm 493: {
1.30 nicm 494: struct client *c;
1.5 nicm 495: char *tmparg;
496: size_t arglen;
1.1 nicm 497:
1.5 nicm 498: /* A NULL argument means the current client. */
1.79 nicm 499: if (arg == NULL) {
1.80 nicm 500: c = cmd_current_client(cmdq);
1.79 nicm 501: if (c == NULL && !quiet)
1.80 nicm 502: cmdq_error(cmdq, "no clients");
1.79 nicm 503: return (c);
504: }
1.5 nicm 505: tmparg = xstrdup(arg);
506:
507: /* Trim a single trailing colon if any. */
508: arglen = strlen(tmparg);
509: if (arglen != 0 && tmparg[arglen - 1] == ':')
510: tmparg[arglen - 1] = '\0';
511:
512: /* Find the client, if any. */
513: c = cmd_lookup_client(tmparg);
514:
515: /* If no client found, report an error. */
1.79 nicm 516: if (c == NULL && !quiet)
1.80 nicm 517: cmdq_error(cmdq, "client not found: %s", tmparg);
1.5 nicm 518:
1.68 nicm 519: free(tmparg);
1.5 nicm 520: return (c);
521: }
522:
523: /*
524: * Lookup a client by device path. Either of a full match and a match without a
525: * leading _PATH_DEV ("/dev/") is accepted.
526: */
527: struct client *
528: cmd_lookup_client(const char *name)
529: {
530: struct client *c;
531: const char *path;
532: u_int i;
533:
534: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 535: c = ARRAY_ITEM(&clients, i);
1.81 nicm 536: if (c == NULL || c->session == NULL || c->tty.path == NULL)
1.5 nicm 537: continue;
538: path = c->tty.path;
539:
540: /* Check for exact matches. */
541: if (strcmp(name, path) == 0)
542: return (c);
543:
544: /* Check without leading /dev if present. */
545: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
546: continue;
547: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
548: return (c);
549: }
550:
551: return (NULL);
552: }
553:
554: /* Lookup a session by name. If no session is found, NULL is returned. */
555: struct session *
556: cmd_lookup_session(const char *name, int *ambiguous)
557: {
558: struct session *s, *sfound;
559:
560: *ambiguous = 0;
561:
562: /*
1.28 nicm 563: * Look for matches. First look for exact matches - session names must
564: * be unique so an exact match can't be ambigious and can just be
565: * returned.
1.5 nicm 566: */
1.47 nicm 567: if ((s = session_find(name)) != NULL)
568: return (s);
1.28 nicm 569:
570: /*
571: * Otherwise look for partial matches, returning early if it is found to
572: * be ambiguous.
573: */
574: sfound = NULL;
1.47 nicm 575: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 576: if (strncmp(name, s->name, strlen(name)) == 0 ||
577: fnmatch(name, s->name, 0) == 0) {
578: if (sfound != NULL) {
579: *ambiguous = 1;
580: return (NULL);
581: }
582: sfound = s;
583: }
584: }
1.35 nicm 585: return (sfound);
1.5 nicm 586: }
587:
588: /*
1.8 nicm 589: * Lookup a window or return -1 if not found or ambigious. First try as an
590: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 591: * idx if the window index is a valid number but there is no window with that
1.8 nicm 592: * index.
1.5 nicm 593: */
594: struct winlink *
595: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
596: {
597: struct winlink *wl, *wlfound;
598: const char *errstr;
599: u_int idx;
600:
601: *ambiguous = 0;
602:
1.60 nicm 603: /* Try as a window id. */
604: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
605: return (wl);
606:
1.5 nicm 607: /* First see if this is a valid window index in this session. */
608: idx = strtonum(name, 0, INT_MAX, &errstr);
609: if (errstr == NULL) {
610: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
611: return (wl);
612: }
1.35 nicm 613:
1.5 nicm 614: /* Look for exact matches, error if more than one. */
615: wlfound = NULL;
616: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 617: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 618: if (wlfound != NULL) {
619: *ambiguous = 1;
620: return (NULL);
621: }
622: wlfound = wl;
1.1 nicm 623: }
624: }
1.5 nicm 625: if (wlfound != NULL)
626: return (wlfound);
627:
628: /* Now look for pattern matches, again error if multiple. */
629: wlfound = NULL;
630: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 631: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
632: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 633: if (wlfound != NULL) {
634: *ambiguous = 1;
635: return (NULL);
636: }
637: wlfound = wl;
638: }
1.35 nicm 639: }
1.5 nicm 640: if (wlfound != NULL)
641: return (wlfound);
642:
643: return (NULL);
1.1 nicm 644: }
645:
1.8 nicm 646: /*
647: * Find a window index - if the window doesn't exist, check if it is a
648: * potential index and return it anyway.
649: */
650: int
651: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
652: {
653: struct winlink *wl;
654: const char *errstr;
655: u_int idx;
656:
657: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
658: return (wl->idx);
659: if (*ambiguous)
660: return (-1);
661:
662: idx = strtonum(name, 0, INT_MAX, &errstr);
663: if (errstr == NULL)
664: return (idx);
665:
666: return (-1);
667: }
668:
1.60 nicm 669: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 670: struct window_pane *
671: cmd_lookup_paneid(const char *arg)
672: {
673: const char *errstr;
674: u_int paneid;
675:
676: if (*arg != '%')
677: return (NULL);
678:
679: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
680: if (errstr != NULL)
681: return (NULL);
682: return (window_pane_find_by_id(paneid));
683: }
684:
1.60 nicm 685: /* Lookup window id in a session. An initial @ means a window id. */
686: struct winlink *
687: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
688: {
689: const char *errstr;
690: u_int windowid;
691:
692: if (*arg != '@')
693: return (NULL);
694:
695: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
696: if (errstr != NULL)
697: return (NULL);
698: return (winlink_find_by_window_id(&s->windows, windowid));
699: }
700:
701: /* Lookup window id. An initial @ means a window id. */
702: struct window *
703: cmd_lookup_windowid(const char *arg)
704: {
705: const char *errstr;
706: u_int windowid;
707:
708: if (*arg != '@')
709: return (NULL);
710:
711: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
712: if (errstr != NULL)
713: return (NULL);
714: return (window_find_by_id(windowid));
715: }
716:
717: /* Find session and winlink for window. */
1.51 nicm 718: struct session *
1.80 nicm 719: cmd_window_session(struct cmd_q *cmdq, struct window *w, struct winlink **wlp)
1.51 nicm 720: {
721: struct session *s;
722: struct sessionslist ss;
723: struct winlink *wl;
724:
1.60 nicm 725: /* If this window is in the current session, return that winlink. */
1.80 nicm 726: s = cmd_current_session(cmdq, 0);
1.51 nicm 727: if (s != NULL) {
1.60 nicm 728: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 729: if (wl != NULL) {
730: if (wlp != NULL)
731: *wlp = wl;
732: return (s);
733: }
734: }
735:
1.60 nicm 736: /* Otherwise choose from all sessions with this window. */
1.51 nicm 737: ARRAY_INIT(&ss);
738: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 739: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 740: ARRAY_ADD(&ss, s);
741: }
742: s = cmd_choose_session_list(&ss);
743: ARRAY_FREE(&ss);
744: if (wlp != NULL)
1.60 nicm 745: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 746: return (s);
747: }
748:
1.5 nicm 749: /* Find the target session or report an error and return NULL. */
1.1 nicm 750: struct session *
1.80 nicm 751: cmd_find_session(struct cmd_q *cmdq, const char *arg, int prefer_unattached)
1.1 nicm 752: {
1.51 nicm 753: struct session *s;
754: struct window_pane *wp;
1.60 nicm 755: struct window *w;
1.51 nicm 756: struct client *c;
757: char *tmparg;
758: size_t arglen;
759: int ambiguous;
1.1 nicm 760:
1.5 nicm 761: /* A NULL argument means the current session. */
1.1 nicm 762: if (arg == NULL)
1.80 nicm 763: return (cmd_current_session(cmdq, prefer_unattached));
1.5 nicm 764:
1.60 nicm 765: /* Lookup as pane id or window id. */
1.51 nicm 766: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.80 nicm 767: return (cmd_window_session(cmdq, wp->window, NULL));
1.60 nicm 768: if ((w = cmd_lookup_windowid(arg)) != NULL)
1.80 nicm 769: return (cmd_window_session(cmdq, w, NULL));
1.51 nicm 770:
1.5 nicm 771: /* Trim a single trailing colon if any. */
1.54 nicm 772: tmparg = xstrdup(arg);
1.5 nicm 773: arglen = strlen(tmparg);
774: if (arglen != 0 && tmparg[arglen - 1] == ':')
775: tmparg[arglen - 1] = '\0';
776:
1.53 nicm 777: /* An empty session name is the current session. */
778: if (*tmparg == '\0') {
1.68 nicm 779: free(tmparg);
1.80 nicm 780: return (cmd_current_session(cmdq, prefer_unattached));
1.53 nicm 781: }
782:
1.5 nicm 783: /* Find the session, if any. */
784: s = cmd_lookup_session(tmparg, &ambiguous);
785:
786: /* If it doesn't, try to match it as a client. */
787: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
788: s = c->session;
789:
790: /* If no session found, report an error. */
791: if (s == NULL) {
792: if (ambiguous)
1.80 nicm 793: cmdq_error(cmdq, "more than one session: %s", tmparg);
1.5 nicm 794: else
1.80 nicm 795: cmdq_error(cmdq, "session not found: %s", tmparg);
1.1 nicm 796: }
1.5 nicm 797:
1.68 nicm 798: free(tmparg);
1.1 nicm 799: return (s);
800: }
801:
1.5 nicm 802: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 803: struct winlink *
1.80 nicm 804: cmd_find_window(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.1 nicm 805: {
1.51 nicm 806: struct session *s;
807: struct winlink *wl;
808: struct window_pane *wp;
809: const char *winptr;
810: char *sessptr = NULL;
811: int ambiguous = 0;
1.5 nicm 812:
813: /*
814: * Find the current session. There must always be a current session, if
815: * it can't be found, report an error.
816: */
1.80 nicm 817: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
818: cmdq_error(cmdq, "can't establish current session");
1.5 nicm 819: return (NULL);
820: }
821:
822: /* A NULL argument means the current session and window. */
823: if (arg == NULL) {
824: if (sp != NULL)
825: *sp = s;
826: return (s->curw);
827: }
828:
1.51 nicm 829: /* Lookup as pane id. */
830: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 831: s = cmd_window_session(cmdq, wp->window, &wl);
1.51 nicm 832: if (sp != NULL)
833: *sp = s;
834: return (wl);
835: }
836:
1.5 nicm 837: /* Time to look at the argument. If it is empty, that is an error. */
838: if (*arg == '\0')
839: goto not_found;
840:
1.8 nicm 841: /* Find the separating colon and split into window and session. */
1.5 nicm 842: winptr = strchr(arg, ':');
843: if (winptr == NULL)
1.8 nicm 844: goto no_colon;
845: winptr++; /* skip : */
846: sessptr = xstrdup(arg);
847: *strchr(sessptr, ':') = '\0';
1.5 nicm 848:
849: /* Try to lookup the session if present. */
1.8 nicm 850: if (*sessptr != '\0') {
851: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 852: goto no_session;
853: }
854: if (sp != NULL)
855: *sp = s;
856:
857: /*
858: * Then work out the window. An empty string is the current window,
1.38 nicm 859: * otherwise try special cases then to look it up in the session.
1.5 nicm 860: */
1.8 nicm 861: if (*winptr == '\0')
1.5 nicm 862: wl = s->curw;
1.38 nicm 863: else if (winptr[0] == '!' && winptr[1] == '\0')
864: wl = TAILQ_FIRST(&s->lastw);
1.73 nicm 865: else if (winptr[0] == '^' && winptr[1] == '\0')
866: wl = RB_MIN(winlinks, &s->windows);
867: else if (winptr[0] == '$' && winptr[1] == '\0')
868: wl = RB_MAX(winlinks, &s->windows);
1.43 nicm 869: else if (winptr[0] == '+' || winptr[0] == '-')
870: wl = cmd_find_window_offset(winptr, s, &ambiguous);
871: else
1.38 nicm 872: wl = cmd_lookup_window(s, winptr, &ambiguous);
873: if (wl == NULL)
1.5 nicm 874: goto not_found;
1.35 nicm 875:
1.5 nicm 876: if (sessptr != NULL)
1.68 nicm 877: free(sessptr);
1.5 nicm 878: return (wl);
879:
1.8 nicm 880: no_colon:
1.38 nicm 881: /*
882: * No colon in the string, first try special cases, then as a window
883: * and lastly as a session.
884: */
885: if (arg[0] == '!' && arg[1] == '\0') {
886: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
887: goto not_found;
1.41 nicm 888: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 889: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 890: goto lookup_session;
891: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
892: goto lookup_session;
1.8 nicm 893:
894: if (sp != NULL)
895: *sp = s;
896:
897: return (wl);
898:
1.41 nicm 899: lookup_session:
900: if (ambiguous)
901: goto not_found;
1.53 nicm 902: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 903: goto no_session;
904:
905: if (sp != NULL)
906: *sp = s;
907:
908: return (s->curw);
909:
1.5 nicm 910: no_session:
911: if (ambiguous)
1.80 nicm 912: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 913: else
1.80 nicm 914: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 915: free(sessptr);
1.5 nicm 916: return (NULL);
917:
918: not_found:
919: if (ambiguous)
1.80 nicm 920: cmdq_error(cmdq, "multiple windows: %s", arg);
1.5 nicm 921: else
1.80 nicm 922: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 923: free(sessptr);
1.5 nicm 924: return (NULL);
925: }
1.1 nicm 926:
1.43 nicm 927: struct winlink *
928: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
929: {
930: struct winlink *wl;
931: int offset = 1;
932:
933: if (winptr[1] != '\0')
934: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
935: if (offset == 0)
936: wl = cmd_lookup_window(s, winptr, ambiguous);
937: else {
938: if (winptr[0] == '+')
939: wl = winlink_next_by_number(s->curw, s, offset);
940: else
941: wl = winlink_previous_by_number(s->curw, s, offset);
942: }
943:
944: return (wl);
945: }
946:
1.5 nicm 947: /*
948: * Find the target session and window index, whether or not it exists in the
949: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 950: * used when parsing an argument for a window target that may not exist (for
951: * example if it is going to be created).
1.5 nicm 952: */
953: int
1.80 nicm 954: cmd_find_index(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.5 nicm 955: {
956: struct session *s;
1.38 nicm 957: struct winlink *wl;
1.8 nicm 958: const char *winptr;
1.5 nicm 959: char *sessptr = NULL;
960: int idx, ambiguous = 0;
961:
962: /*
963: * Find the current session. There must always be a current session, if
964: * it can't be found, report an error.
965: */
1.80 nicm 966: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
967: cmdq_error(cmdq, "can't establish current session");
1.9 nicm 968: return (-2);
1.1 nicm 969: }
1.5 nicm 970:
971: /* A NULL argument means the current session and "no window" (-1). */
972: if (arg == NULL) {
973: if (sp != NULL)
974: *sp = s;
975: return (-1);
976: }
977:
978: /* Time to look at the argument. If it is empty, that is an error. */
979: if (*arg == '\0')
980: goto not_found;
981:
982: /* Find the separating colon. If none, assume the current session. */
983: winptr = strchr(arg, ':');
984: if (winptr == NULL)
1.8 nicm 985: goto no_colon;
986: winptr++; /* skip : */
987: sessptr = xstrdup(arg);
988: *strchr(sessptr, ':') = '\0';
1.5 nicm 989:
990: /* Try to lookup the session if present. */
991: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 992: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 993: goto no_session;
994: }
1.1 nicm 995: if (sp != NULL)
996: *sp = s;
997:
1.5 nicm 998: /*
1.8 nicm 999: * Then work out the window. An empty string is a new window otherwise
1000: * try to look it up in the session.
1.5 nicm 1001: */
1.8 nicm 1002: if (*winptr == '\0')
1.38 nicm 1003: idx = -1;
1004: else if (winptr[0] == '!' && winptr[1] == '\0') {
1005: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1006: goto not_found;
1007: idx = wl->idx;
1.41 nicm 1008: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 1009: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 1010: goto invalid_index;
1011: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1012: goto invalid_index;
1.35 nicm 1013:
1.68 nicm 1014: free(sessptr);
1.5 nicm 1015: return (idx);
1016:
1.8 nicm 1017: no_colon:
1.38 nicm 1018: /*
1019: * No colon in the string, first try special cases, then as a window
1020: * and lastly as a session.
1021: */
1022: if (arg[0] == '!' && arg[1] == '\0') {
1023: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1024: goto not_found;
1025: idx = wl->idx;
1.41 nicm 1026: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1027: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1028: goto lookup_session;
1029: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1030: goto lookup_session;
1.8 nicm 1031:
1032: if (sp != NULL)
1033: *sp = s;
1034:
1035: return (idx);
1036:
1.41 nicm 1037: lookup_session:
1038: if (ambiguous)
1039: goto not_found;
1.53 nicm 1040: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1041: goto no_session;
1042:
1043: if (sp != NULL)
1044: *sp = s;
1045:
1046: return (-1);
1047:
1.5 nicm 1048: no_session:
1049: if (ambiguous)
1.80 nicm 1050: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 1051: else
1.80 nicm 1052: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 1053: free(sessptr);
1.5 nicm 1054: return (-2);
1055:
1.41 nicm 1056: invalid_index:
1057: if (ambiguous)
1058: goto not_found;
1.80 nicm 1059: cmdq_error(cmdq, "invalid index: %s", arg);
1.41 nicm 1060:
1.68 nicm 1061: free(sessptr);
1.41 nicm 1062: return (-2);
1063:
1.5 nicm 1064: not_found:
1065: if (ambiguous)
1.80 nicm 1066: cmdq_error(cmdq, "multiple windows: %s", arg);
1.1 nicm 1067: else
1.80 nicm 1068: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 1069: free(sessptr);
1.5 nicm 1070: return (-2);
1.12 nicm 1071: }
1072:
1.43 nicm 1073: int
1074: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1075: {
1076: int idx, offset = 1;
1077:
1078: if (winptr[1] != '\0')
1079: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1080: if (offset == 0)
1081: idx = cmd_lookup_index(s, winptr, ambiguous);
1082: else {
1083: if (winptr[0] == '+') {
1084: if (s->curw->idx == INT_MAX)
1085: idx = cmd_lookup_index(s, winptr, ambiguous);
1086: else
1087: idx = s->curw->idx + offset;
1088: } else {
1089: if (s->curw->idx == 0)
1090: idx = cmd_lookup_index(s, winptr, ambiguous);
1091: else
1092: idx = s->curw->idx - offset;
1093: }
1094: }
1095:
1096: return (idx);
1097: }
1098:
1.12 nicm 1099: /*
1100: * Find the target session, window and pane number or report an error and
1101: * return NULL. The pane number is separated from the session:window by a .,
1102: * such as mysession:mywindow.0.
1103: */
1104: struct winlink *
1.80 nicm 1105: cmd_find_pane(struct cmd_q *cmdq,
1.12 nicm 1106: const char *arg, struct session **sp, struct window_pane **wpp)
1107: {
1.55 nicm 1108: struct session *s;
1109: struct winlink *wl;
1110: const char *period, *errstr;
1111: char *winptr, *paneptr;
1112: u_int idx;
1.12 nicm 1113:
1114: /* Get the current session. */
1.80 nicm 1115: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
1116: cmdq_error(cmdq, "can't establish current session");
1.12 nicm 1117: return (NULL);
1118: }
1119: if (sp != NULL)
1120: *sp = s;
1121:
1122: /* A NULL argument means the current session, window and pane. */
1123: if (arg == NULL) {
1124: *wpp = s->curw->window->active;
1125: return (s->curw);
1.51 nicm 1126: }
1127:
1128: /* Lookup as pane id. */
1129: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 1130: s = cmd_window_session(cmdq, (*wpp)->window, &wl);
1.51 nicm 1131: if (sp != NULL)
1132: *sp = s;
1133: return (wl);
1.12 nicm 1134: }
1135:
1136: /* Look for a separating period. */
1137: if ((period = strrchr(arg, '.')) == NULL)
1138: goto no_period;
1139:
1140: /* Pull out the window part and parse it. */
1141: winptr = xstrdup(arg);
1142: winptr[period - arg] = '\0';
1143: if (*winptr == '\0')
1144: wl = s->curw;
1.80 nicm 1145: else if ((wl = cmd_find_window(cmdq, winptr, sp)) == NULL)
1.12 nicm 1146: goto error;
1147:
1148: /* Find the pane section and look it up. */
1149: paneptr = winptr + (period - arg) + 1;
1150: if (*paneptr == '\0')
1151: *wpp = wl->window->active;
1.43 nicm 1152: else if (paneptr[0] == '+' || paneptr[0] == '-')
1153: *wpp = cmd_find_pane_offset(paneptr, wl);
1154: else {
1.12 nicm 1155: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1156: if (errstr != NULL)
1157: goto lookup_string;
1.12 nicm 1158: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1159: if (*wpp == NULL)
1160: goto lookup_string;
1.12 nicm 1161: }
1162:
1.68 nicm 1163: free(winptr);
1.12 nicm 1164: return (wl);
1165:
1.36 nicm 1166: lookup_string:
1167: /* Try pane string description. */
1.55 nicm 1168: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.80 nicm 1169: cmdq_error(cmdq, "can't find pane: %s", paneptr);
1.36 nicm 1170: goto error;
1171: }
1172:
1.68 nicm 1173: free(winptr);
1.39 nicm 1174: return (wl);
1.36 nicm 1175:
1.12 nicm 1176: no_period:
1177: /* Try as a pane number alone. */
1178: idx = strtonum(arg, 0, INT_MAX, &errstr);
1179: if (errstr != NULL)
1180: goto lookup_window;
1181:
1182: /* Try index in the current session and window. */
1183: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1184: goto lookup_window;
1.35 nicm 1185:
1.12 nicm 1186: return (s->curw);
1187:
1188: lookup_window:
1.36 nicm 1189: /* Try pane string description. */
1.55 nicm 1190: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1191: return (s->curw);
1192:
1.12 nicm 1193: /* Try as a window and use the active pane. */
1.80 nicm 1194: if ((wl = cmd_find_window(cmdq, arg, sp)) != NULL)
1.12 nicm 1195: *wpp = wl->window->active;
1196: return (wl);
1.35 nicm 1197:
1.12 nicm 1198: error:
1.68 nicm 1199: free(winptr);
1.12 nicm 1200: return (NULL);
1.43 nicm 1201: }
1202:
1203: struct window_pane *
1204: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1205: {
1206: struct window *w = wl->window;
1207: struct window_pane *wp = w->active;
1208: u_int offset = 1;
1209:
1210: if (paneptr[1] != '\0')
1211: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1212: if (offset > 0) {
1213: if (paneptr[0] == '+')
1214: wp = window_pane_next_by_number(w, wp, offset);
1215: else
1216: wp = window_pane_previous_by_number(w, wp, offset);
1217: }
1218:
1219: return (wp);
1.15 nicm 1220: }
1221:
1222: /* Replace the first %% or %idx in template by s. */
1223: char *
1.75 nicm 1224: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 1225: {
1.75 nicm 1226: char ch, *buf;
1227: const char *ptr;
1228: int replaced;
1229: size_t len;
1.15 nicm 1230:
1.76 nicm 1231: if (strchr(template, '%') == NULL)
1.15 nicm 1232: return (xstrdup(template));
1233:
1234: buf = xmalloc(1);
1235: *buf = '\0';
1236: len = 0;
1237: replaced = 0;
1238:
1239: ptr = template;
1240: while (*ptr != '\0') {
1241: switch (ch = *ptr++) {
1242: case '%':
1243: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1244: if (*ptr != '%' || replaced)
1245: break;
1246: replaced = 1;
1247: }
1248: ptr++;
1249:
1250: len += strlen(s);
1251: buf = xrealloc(buf, 1, len + 1);
1252: strlcat(buf, s, len + 1);
1253: continue;
1254: }
1255: buf = xrealloc(buf, 1, len + 2);
1256: buf[len++] = ch;
1257: buf[len] = '\0';
1258: }
1259:
1260: return (buf);
1.57 nicm 1261: }
1262:
1.61 nicm 1263: /*
1264: * Return the default path for a new pane, using the given path or the
1265: * default-path option if it is NULL. Several special values are accepted: the
1266: * empty string or relative path for the current pane's working directory, ~
1267: * for the user's home, - for the session working directory, . for the tmux
1268: * server's working directory. The default on failure is the session's working
1269: * directory.
1270: */
1.59 nicm 1271: const char *
1.80 nicm 1272: cmd_get_default_path(struct cmd_q *cmdq, const char *cwd)
1.57 nicm 1273: {
1.80 nicm 1274: struct client *c = cmdq->client;
1.57 nicm 1275: struct session *s;
1.58 stsp 1276: struct environ_entry *envent;
1.61 nicm 1277: const char *root;
1278: char tmp[MAXPATHLEN];
1279: struct passwd *pw;
1280: int n;
1281: size_t skip;
1282: static char path[MAXPATHLEN];
1.57 nicm 1283:
1.80 nicm 1284: if ((s = cmd_current_session(cmdq, 0)) == NULL)
1.57 nicm 1285: return (NULL);
1286:
1.61 nicm 1287: if (cwd == NULL)
1288: cwd = options_get_string(&s->options, "default-path");
1289:
1290: skip = 1;
1291: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1292: /* User's home directory - $HOME. */
1293: skip = 5;
1294: goto find_home;
1295: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1296: /* User's home directory - ~. */
1297: goto find_home;
1298: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1299: /* Session working directory. */
1300: root = s->cwd;
1301: goto complete_path;
1.66 nicm 1302: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1303: /* Server working directory. */
1304: if (getcwd(tmp, sizeof tmp) != NULL) {
1305: root = tmp;
1306: goto complete_path;
1.57 nicm 1307: }
1308: return (s->cwd);
1.61 nicm 1309: } else if (*cwd == '/') {
1310: /* Absolute path. */
1311: return (cwd);
1312: } else {
1313: /* Empty or relative path. */
1.80 nicm 1314: if (c != NULL && c->session == NULL && c->cwd != NULL)
1315: root = c->cwd;
1316: else if (s->curw != NULL)
1.71 nicm 1317: root = get_proc_cwd(s->curw->window->active->fd);
1.61 nicm 1318: else
1319: return (s->cwd);
1320: skip = 0;
1.62 nicm 1321: if (root != NULL)
1322: goto complete_path;
1.57 nicm 1323: }
1.61 nicm 1324:
1325: return (s->cwd);
1326:
1327: find_home:
1328: envent = environ_find(&global_environ, "HOME");
1329: if (envent != NULL && *envent->value != '\0')
1330: root = envent->value;
1331: else if ((pw = getpwuid(getuid())) != NULL)
1332: root = pw->pw_dir;
1333: else
1334: return (s->cwd);
1335:
1336: complete_path:
1.65 nicm 1337: if (root[skip] == '\0') {
1338: strlcpy(path, root, sizeof path);
1339: return (path);
1340: }
1.61 nicm 1341: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1342: if (n > 0 && (size_t)n < sizeof path)
1343: return (path);
1344: return (s->cwd);
1.1 nicm 1345: }
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