Annotation of src/usr.bin/tmux/cmd.c, Revision 1.86
1.86 ! nicm 1: /* $OpenBSD: cmd.c,v 1.85 2013/05/15 15:34:09 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 *);
1.83 nicm 126: struct session *cmd_lookup_session_id(const char *);
1.5 nicm 127: struct winlink *cmd_lookup_window(struct session *, const char *, int *);
1.8 nicm 128: int cmd_lookup_index(struct session *, const char *, int *);
1.51 nicm 129: struct window_pane *cmd_lookup_paneid(const char *);
1.60 nicm 130: struct winlink *cmd_lookup_winlink_windowid(struct session *, const char *);
131: struct window *cmd_lookup_windowid(const char *);
1.80 nicm 132: struct session *cmd_window_session(struct cmd_q *, struct window *,
133: struct winlink **);
1.43 nicm 134: struct winlink *cmd_find_window_offset(const char *, struct session *, int *);
135: int cmd_find_index_offset(const char *, struct session *, int *);
1.51 nicm 136: struct window_pane *cmd_find_pane_offset(const char *, struct winlink *);
1.5 nicm 137:
1.10 nicm 138: int
139: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
140: {
141: size_t arglen;
142: int i;
143:
144: *buf = '\0';
145: for (i = 0; i < argc; i++) {
146: if (strlcpy(buf, argv[i], len) >= len)
147: return (-1);
148: arglen = strlen(argv[i]) + 1;
149: buf += arglen;
150: len -= arglen;
151: }
152:
153: return (0);
154: }
155:
156: int
157: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
158: {
159: int i;
160: size_t arglen;
161:
162: if (argc == 0)
163: return (0);
164: *argv = xcalloc(argc, sizeof **argv);
165:
166: buf[len - 1] = '\0';
167: for (i = 0; i < argc; i++) {
168: if (len == 0) {
169: cmd_free_argv(argc, *argv);
170: return (-1);
171: }
172:
173: arglen = strlen(buf) + 1;
174: (*argv)[i] = xstrdup(buf);
175: buf += arglen;
176: len -= arglen;
177: }
178:
179: return (0);
1.46 nicm 180: }
181:
182: char **
1.49 nicm 183: cmd_copy_argv(int argc, char *const *argv)
1.46 nicm 184: {
185: char **new_argv;
186: int i;
187:
188: if (argc == 0)
189: return (NULL);
190: new_argv = xcalloc(argc, sizeof *new_argv);
191: for (i = 0; i < argc; i++) {
192: if (argv[i] != NULL)
193: new_argv[i] = xstrdup(argv[i]);
194: }
195: return (new_argv);
1.10 nicm 196: }
197:
198: void
199: cmd_free_argv(int argc, char **argv)
200: {
201: int i;
202:
203: if (argc == 0)
1.35 nicm 204: return;
1.68 nicm 205: for (i = 0; i < argc; i++)
206: free(argv[i]);
207: free(argv);
1.10 nicm 208: }
209:
1.1 nicm 210: struct cmd *
1.80 nicm 211: cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
1.1 nicm 212: {
213: const struct cmd_entry **entryp, *entry;
1.27 deraadt 214: struct cmd *cmd;
1.49 nicm 215: struct args *args;
1.1 nicm 216: char s[BUFSIZ];
1.49 nicm 217: int ambiguous = 0;
1.1 nicm 218:
219: *cause = NULL;
1.2 nicm 220: if (argc == 0) {
221: xasprintf(cause, "no command");
1.1 nicm 222: return (NULL);
1.2 nicm 223: }
1.1 nicm 224:
225: entry = NULL;
226: for (entryp = cmd_table; *entryp != NULL; entryp++) {
227: if ((*entryp)->alias != NULL &&
228: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 229: ambiguous = 0;
1.1 nicm 230: entry = *entryp;
231: break;
232: }
233:
234: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
235: continue;
236: if (entry != NULL)
1.3 nicm 237: ambiguous = 1;
1.1 nicm 238: entry = *entryp;
239:
240: /* Bail now if an exact match. */
241: if (strcmp(entry->name, argv[0]) == 0)
242: break;
243: }
1.3 nicm 244: if (ambiguous)
245: goto ambiguous;
1.1 nicm 246: if (entry == NULL) {
247: xasprintf(cause, "unknown command: %s", argv[0]);
248: return (NULL);
249: }
250:
1.49 nicm 251: args = args_parse(entry->args_template, argc, argv);
252: if (args == NULL)
253: goto usage;
254: if (entry->args_lower != -1 && args->argc < entry->args_lower)
255: goto usage;
256: if (entry->args_upper != -1 && args->argc > entry->args_upper)
257: goto usage;
1.1 nicm 258:
1.80 nicm 259: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 260: cmd->entry = entry;
1.49 nicm 261: cmd->args = args;
1.80 nicm 262:
263: if (file != NULL)
264: cmd->file = xstrdup(file);
265: cmd->line = line;
266:
1.1 nicm 267: return (cmd);
268:
269: ambiguous:
270: *s = '\0';
271: for (entryp = cmd_table; *entryp != NULL; entryp++) {
272: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
273: continue;
274: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
275: break;
276: if (strlcat(s, ", ", sizeof s) >= sizeof s)
277: break;
278: }
279: s[strlen(s) - 2] = '\0';
280: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
281: return (NULL);
282:
283: usage:
1.49 nicm 284: if (args != NULL)
285: args_free(args);
1.1 nicm 286: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
287: return (NULL);
288: }
289:
290: size_t
291: cmd_print(struct cmd *cmd, char *buf, size_t len)
292: {
1.49 nicm 293: size_t off, used;
294:
295: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
1.85 nicm 296: if (off + 1 < len) {
297: used = args_print(cmd->args, buf + off, len - off - 1);
1.49 nicm 298: if (used == 0)
1.64 nicm 299: off--;
300: else
1.49 nicm 301: off += used;
1.64 nicm 302: buf[off] = '\0';
1.49 nicm 303: }
304: return (off);
1.1 nicm 305: }
306:
1.5 nicm 307: /*
308: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 309: * context has one; 2) the most recently used session containing the pty of the
310: * calling client, if any; 3) the session specified in the TMUX variable from
311: * the environment (as passed from the client); 4) the most recently used
312: * session from all sessions.
1.5 nicm 313: */
1.1 nicm 314: struct session *
1.80 nicm 315: cmd_current_session(struct cmd_q *cmdq, int prefer_unattached)
1.1 nicm 316: {
1.80 nicm 317: struct msg_command_data *data = cmdq->msgdata;
318: struct client *c = cmdq->client;
1.5 nicm 319: struct session *s;
1.47 nicm 320: struct sessionslist ss;
1.11 nicm 321: struct winlink *wl;
322: struct window_pane *wp;
1.80 nicm 323: const char *path;
1.11 nicm 324: int found;
1.1 nicm 325:
1.80 nicm 326: if (c != NULL && c->session != NULL)
327: return (c->session);
1.1 nicm 328:
1.11 nicm 329: /*
1.81 nicm 330: * If the name of the calling client's pty is known, build a list of
331: * the sessions that contain it and if any choose either the first or
332: * the newest.
1.11 nicm 333: */
1.80 nicm 334: path = c == NULL ? NULL : c->tty.path;
335: if (path != NULL) {
1.11 nicm 336: ARRAY_INIT(&ss);
1.47 nicm 337: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 338: found = 0;
339: RB_FOREACH(wl, winlinks, &s->windows) {
340: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
1.80 nicm 341: if (strcmp(wp->tty, path) == 0) {
1.11 nicm 342: found = 1;
343: break;
344: }
345: }
346: if (found)
347: break;
348: }
349: if (found)
350: ARRAY_ADD(&ss, s);
351: }
352:
1.47 nicm 353: s = cmd_choose_session_list(&ss);
1.11 nicm 354: ARRAY_FREE(&ss);
355: if (s != NULL)
356: return (s);
357: }
358:
359: /* Use the session from the TMUX environment variable. */
1.83 nicm 360: if (data != NULL && data->pid == getpid() && data->session_id != -1) {
361: s = session_find_by_id(data->session_id);
1.47 nicm 362: if (s != NULL)
363: return (s);
364: }
365:
1.52 nicm 366: return (cmd_choose_session(prefer_unattached));
1.47 nicm 367: }
368:
1.72 nicm 369: /* Is this session better? */
370: int
371: cmd_session_better(struct session *s, struct session *best,
372: int prefer_unattached)
373: {
374: if (best == NULL)
1.74 nicm 375: return (1);
1.72 nicm 376: if (prefer_unattached) {
377: if (!(best->flags & SESSION_UNATTACHED) &&
378: (s->flags & SESSION_UNATTACHED))
1.74 nicm 379: return (1);
1.72 nicm 380: else if ((best->flags & SESSION_UNATTACHED) &&
381: !(s->flags & SESSION_UNATTACHED))
1.74 nicm 382: return (0);
1.72 nicm 383: }
384: return (timercmp(&s->activity_time, &best->activity_time, >));
385: }
386:
1.52 nicm 387: /*
388: * Find the most recently used session, preferring unattached if the flag is
389: * set.
390: */
1.47 nicm 391: struct session *
1.52 nicm 392: cmd_choose_session(int prefer_unattached)
1.47 nicm 393: {
1.72 nicm 394: struct session *s, *best;
1.47 nicm 395:
1.72 nicm 396: best = NULL;
1.47 nicm 397: RB_FOREACH(s, sessions, &sessions) {
1.72 nicm 398: if (cmd_session_better(s, best, prefer_unattached))
399: best = s;
1.47 nicm 400: }
1.72 nicm 401: return (best);
1.5 nicm 402: }
403:
1.31 nicm 404: /* Find the most recently used session from a list. */
1.5 nicm 405: struct session *
1.47 nicm 406: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 407: {
1.31 nicm 408: struct session *s, *sbest;
1.5 nicm 409: struct timeval *tv = NULL;
410: u_int i;
411:
1.31 nicm 412: sbest = NULL;
1.11 nicm 413: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
414: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 415: continue;
416:
1.31 nicm 417: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
418: sbest = s;
419: tv = &s->activity_time;
1.1 nicm 420: }
421: }
1.5 nicm 422:
1.31 nicm 423: return (sbest);
1.1 nicm 424: }
425:
1.30 nicm 426: /*
427: * Find the current client. First try the current client if set, then pick the
1.31 nicm 428: * most recently used of the clients attached to the current session if any,
429: * then of all clients.
1.30 nicm 430: */
431: struct client *
1.80 nicm 432: cmd_current_client(struct cmd_q *cmdq)
1.30 nicm 433: {
434: struct session *s;
435: struct client *c;
436: struct clients cc;
437: u_int i;
438:
1.80 nicm 439: if (cmdq->client != NULL && cmdq->client->session != NULL)
440: return (cmdq->client);
1.30 nicm 441:
442: /*
443: * No current client set. Find the current session and return the
444: * newest of its clients.
445: */
1.80 nicm 446: s = cmd_current_session(cmdq, 0);
1.30 nicm 447: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
448: ARRAY_INIT(&cc);
449: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
450: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
451: continue;
452: if (s == c->session)
453: ARRAY_ADD(&cc, c);
454: }
455:
1.31 nicm 456: c = cmd_choose_client(&cc);
1.30 nicm 457: ARRAY_FREE(&cc);
458: if (c != NULL)
459: return (c);
460: }
461:
1.31 nicm 462: return (cmd_choose_client(&clients));
1.30 nicm 463: }
464:
1.31 nicm 465: /* Choose the most recently used client from a list. */
1.20 nicm 466: struct client *
1.31 nicm 467: cmd_choose_client(struct clients *cc)
1.20 nicm 468: {
1.31 nicm 469: struct client *c, *cbest;
1.20 nicm 470: struct timeval *tv = NULL;
471: u_int i;
472:
1.31 nicm 473: cbest = NULL;
1.30 nicm 474: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
475: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 476: continue;
477: if (c->session == NULL)
478: continue;
479:
1.31 nicm 480: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
481: cbest = c;
482: tv = &c->activity_time;
1.20 nicm 483: }
484: }
485:
1.31 nicm 486: return (cbest);
1.20 nicm 487: }
488:
1.5 nicm 489: /* Find the target client or report an error and return NULL. */
1.1 nicm 490: struct client *
1.80 nicm 491: cmd_find_client(struct cmd_q *cmdq, const char *arg, int quiet)
1.1 nicm 492: {
1.30 nicm 493: struct client *c;
1.5 nicm 494: char *tmparg;
495: size_t arglen;
1.1 nicm 496:
1.5 nicm 497: /* A NULL argument means the current client. */
1.79 nicm 498: if (arg == NULL) {
1.80 nicm 499: c = cmd_current_client(cmdq);
1.79 nicm 500: if (c == NULL && !quiet)
1.80 nicm 501: cmdq_error(cmdq, "no clients");
1.79 nicm 502: return (c);
503: }
1.5 nicm 504: tmparg = xstrdup(arg);
505:
506: /* Trim a single trailing colon if any. */
507: arglen = strlen(tmparg);
508: if (arglen != 0 && tmparg[arglen - 1] == ':')
509: tmparg[arglen - 1] = '\0';
510:
511: /* Find the client, if any. */
512: c = cmd_lookup_client(tmparg);
513:
514: /* If no client found, report an error. */
1.79 nicm 515: if (c == NULL && !quiet)
1.80 nicm 516: cmdq_error(cmdq, "client not found: %s", tmparg);
1.5 nicm 517:
1.68 nicm 518: free(tmparg);
1.5 nicm 519: return (c);
520: }
521:
522: /*
523: * Lookup a client by device path. Either of a full match and a match without a
524: * leading _PATH_DEV ("/dev/") is accepted.
525: */
526: struct client *
527: cmd_lookup_client(const char *name)
528: {
529: struct client *c;
530: const char *path;
531: u_int i;
532:
533: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 534: c = ARRAY_ITEM(&clients, i);
1.81 nicm 535: if (c == NULL || c->session == NULL || c->tty.path == NULL)
1.5 nicm 536: continue;
537: path = c->tty.path;
538:
539: /* Check for exact matches. */
540: if (strcmp(name, path) == 0)
541: return (c);
542:
543: /* Check without leading /dev if present. */
544: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
545: continue;
546: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
547: return (c);
548: }
549:
550: return (NULL);
551: }
552:
1.83 nicm 553: /* Find the target session or report an error and return NULL. */
554: struct session *
555: cmd_lookup_session_id(const char *arg)
556: {
557: char *endptr;
558: long id;
559:
560: if (arg[0] != '$')
561: return (NULL);
562: id = strtol(arg + 1, &endptr, 10);
563: if (arg[1] != '\0' && *endptr == '\0')
564: return (session_find_by_id(id));
565: return (NULL);
566: }
567:
1.5 nicm 568: /* Lookup a session by name. If no session is found, NULL is returned. */
569: struct session *
570: cmd_lookup_session(const char *name, int *ambiguous)
571: {
572: struct session *s, *sfound;
573:
574: *ambiguous = 0;
1.83 nicm 575:
576: /* Look for $id first. */
577: if ((s = cmd_lookup_session_id(name)) != NULL)
578: return (s);
1.5 nicm 579:
580: /*
1.28 nicm 581: * Look for matches. First look for exact matches - session names must
582: * be unique so an exact match can't be ambigious and can just be
583: * returned.
1.5 nicm 584: */
1.47 nicm 585: if ((s = session_find(name)) != NULL)
586: return (s);
1.28 nicm 587:
588: /*
589: * Otherwise look for partial matches, returning early if it is found to
590: * be ambiguous.
591: */
592: sfound = NULL;
1.47 nicm 593: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 594: if (strncmp(name, s->name, strlen(name)) == 0 ||
595: fnmatch(name, s->name, 0) == 0) {
596: if (sfound != NULL) {
597: *ambiguous = 1;
598: return (NULL);
599: }
600: sfound = s;
601: }
602: }
1.35 nicm 603: return (sfound);
1.5 nicm 604: }
605:
606: /*
1.8 nicm 607: * Lookup a window or return -1 if not found or ambigious. First try as an
608: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 609: * idx if the window index is a valid number but there is no window with that
1.8 nicm 610: * index.
1.5 nicm 611: */
612: struct winlink *
613: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
614: {
615: struct winlink *wl, *wlfound;
616: const char *errstr;
617: u_int idx;
618:
619: *ambiguous = 0;
620:
1.60 nicm 621: /* Try as a window id. */
622: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
623: return (wl);
624:
1.5 nicm 625: /* First see if this is a valid window index in this session. */
626: idx = strtonum(name, 0, INT_MAX, &errstr);
627: if (errstr == NULL) {
628: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
629: return (wl);
630: }
1.35 nicm 631:
1.5 nicm 632: /* Look for exact matches, error if more than one. */
633: wlfound = NULL;
634: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 635: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 636: if (wlfound != NULL) {
637: *ambiguous = 1;
638: return (NULL);
639: }
640: wlfound = wl;
1.1 nicm 641: }
642: }
1.5 nicm 643: if (wlfound != NULL)
644: return (wlfound);
645:
646: /* Now look for pattern matches, again error if multiple. */
647: wlfound = NULL;
648: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 649: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
650: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 651: if (wlfound != NULL) {
652: *ambiguous = 1;
653: return (NULL);
654: }
655: wlfound = wl;
656: }
1.35 nicm 657: }
1.5 nicm 658: if (wlfound != NULL)
659: return (wlfound);
660:
661: return (NULL);
1.1 nicm 662: }
663:
1.8 nicm 664: /*
665: * Find a window index - if the window doesn't exist, check if it is a
666: * potential index and return it anyway.
667: */
668: int
669: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
670: {
671: struct winlink *wl;
672: const char *errstr;
673: u_int idx;
674:
675: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
676: return (wl->idx);
677: if (*ambiguous)
678: return (-1);
679:
680: idx = strtonum(name, 0, INT_MAX, &errstr);
681: if (errstr == NULL)
682: return (idx);
683:
684: return (-1);
685: }
686:
1.60 nicm 687: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 688: struct window_pane *
689: cmd_lookup_paneid(const char *arg)
690: {
691: const char *errstr;
692: u_int paneid;
693:
694: if (*arg != '%')
695: return (NULL);
696:
697: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
698: if (errstr != NULL)
699: return (NULL);
700: return (window_pane_find_by_id(paneid));
701: }
702:
1.60 nicm 703: /* Lookup window id in a session. An initial @ means a window id. */
704: struct winlink *
705: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
706: {
707: const char *errstr;
708: u_int windowid;
709:
710: if (*arg != '@')
711: return (NULL);
712:
713: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
714: if (errstr != NULL)
715: return (NULL);
716: return (winlink_find_by_window_id(&s->windows, windowid));
717: }
718:
719: /* Lookup window id. An initial @ means a window id. */
720: struct window *
721: cmd_lookup_windowid(const char *arg)
722: {
723: const char *errstr;
724: u_int windowid;
725:
726: if (*arg != '@')
727: return (NULL);
728:
729: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
730: if (errstr != NULL)
731: return (NULL);
732: return (window_find_by_id(windowid));
733: }
734:
735: /* Find session and winlink for window. */
1.51 nicm 736: struct session *
1.80 nicm 737: cmd_window_session(struct cmd_q *cmdq, struct window *w, struct winlink **wlp)
1.51 nicm 738: {
739: struct session *s;
740: struct sessionslist ss;
741: struct winlink *wl;
742:
1.60 nicm 743: /* If this window is in the current session, return that winlink. */
1.80 nicm 744: s = cmd_current_session(cmdq, 0);
1.51 nicm 745: if (s != NULL) {
1.60 nicm 746: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 747: if (wl != NULL) {
748: if (wlp != NULL)
749: *wlp = wl;
750: return (s);
751: }
752: }
753:
1.60 nicm 754: /* Otherwise choose from all sessions with this window. */
1.51 nicm 755: ARRAY_INIT(&ss);
756: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 757: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 758: ARRAY_ADD(&ss, s);
759: }
760: s = cmd_choose_session_list(&ss);
761: ARRAY_FREE(&ss);
762: if (wlp != NULL)
1.60 nicm 763: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 764: return (s);
765: }
766:
1.5 nicm 767: /* Find the target session or report an error and return NULL. */
1.1 nicm 768: struct session *
1.80 nicm 769: cmd_find_session(struct cmd_q *cmdq, const char *arg, int prefer_unattached)
1.1 nicm 770: {
1.51 nicm 771: struct session *s;
772: struct window_pane *wp;
1.60 nicm 773: struct window *w;
1.51 nicm 774: struct client *c;
775: char *tmparg;
776: size_t arglen;
777: int ambiguous;
1.1 nicm 778:
1.5 nicm 779: /* A NULL argument means the current session. */
1.1 nicm 780: if (arg == NULL)
1.80 nicm 781: return (cmd_current_session(cmdq, prefer_unattached));
1.5 nicm 782:
1.60 nicm 783: /* Lookup as pane id or window id. */
1.51 nicm 784: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.80 nicm 785: return (cmd_window_session(cmdq, wp->window, NULL));
1.60 nicm 786: if ((w = cmd_lookup_windowid(arg)) != NULL)
1.80 nicm 787: return (cmd_window_session(cmdq, w, NULL));
1.51 nicm 788:
1.5 nicm 789: /* Trim a single trailing colon if any. */
1.54 nicm 790: tmparg = xstrdup(arg);
1.5 nicm 791: arglen = strlen(tmparg);
792: if (arglen != 0 && tmparg[arglen - 1] == ':')
793: tmparg[arglen - 1] = '\0';
794:
1.53 nicm 795: /* An empty session name is the current session. */
796: if (*tmparg == '\0') {
1.68 nicm 797: free(tmparg);
1.80 nicm 798: return (cmd_current_session(cmdq, prefer_unattached));
1.53 nicm 799: }
800:
1.5 nicm 801: /* Find the session, if any. */
802: s = cmd_lookup_session(tmparg, &ambiguous);
803:
804: /* If it doesn't, try to match it as a client. */
805: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
806: s = c->session;
807:
808: /* If no session found, report an error. */
809: if (s == NULL) {
810: if (ambiguous)
1.80 nicm 811: cmdq_error(cmdq, "more than one session: %s", tmparg);
1.5 nicm 812: else
1.80 nicm 813: cmdq_error(cmdq, "session not found: %s", tmparg);
1.1 nicm 814: }
1.5 nicm 815:
1.68 nicm 816: free(tmparg);
1.1 nicm 817: return (s);
818: }
819:
1.5 nicm 820: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 821: struct winlink *
1.80 nicm 822: cmd_find_window(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.1 nicm 823: {
1.51 nicm 824: struct session *s;
825: struct winlink *wl;
826: struct window_pane *wp;
827: const char *winptr;
828: char *sessptr = NULL;
829: int ambiguous = 0;
1.5 nicm 830:
831: /*
832: * Find the current session. There must always be a current session, if
833: * it can't be found, report an error.
834: */
1.80 nicm 835: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
836: cmdq_error(cmdq, "can't establish current session");
1.5 nicm 837: return (NULL);
838: }
839:
840: /* A NULL argument means the current session and window. */
841: if (arg == NULL) {
842: if (sp != NULL)
843: *sp = s;
844: return (s->curw);
845: }
846:
1.51 nicm 847: /* Lookup as pane id. */
848: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 849: s = cmd_window_session(cmdq, wp->window, &wl);
1.51 nicm 850: if (sp != NULL)
851: *sp = s;
852: return (wl);
853: }
854:
1.5 nicm 855: /* Time to look at the argument. If it is empty, that is an error. */
856: if (*arg == '\0')
857: goto not_found;
858:
1.8 nicm 859: /* Find the separating colon and split into window and session. */
1.5 nicm 860: winptr = strchr(arg, ':');
861: if (winptr == NULL)
1.8 nicm 862: goto no_colon;
863: winptr++; /* skip : */
864: sessptr = xstrdup(arg);
865: *strchr(sessptr, ':') = '\0';
1.5 nicm 866:
867: /* Try to lookup the session if present. */
1.8 nicm 868: if (*sessptr != '\0') {
869: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 870: goto no_session;
871: }
872: if (sp != NULL)
873: *sp = s;
874:
875: /*
876: * Then work out the window. An empty string is the current window,
1.38 nicm 877: * otherwise try special cases then to look it up in the session.
1.5 nicm 878: */
1.8 nicm 879: if (*winptr == '\0')
1.5 nicm 880: wl = s->curw;
1.38 nicm 881: else if (winptr[0] == '!' && winptr[1] == '\0')
882: wl = TAILQ_FIRST(&s->lastw);
1.73 nicm 883: else if (winptr[0] == '^' && winptr[1] == '\0')
884: wl = RB_MIN(winlinks, &s->windows);
885: else if (winptr[0] == '$' && winptr[1] == '\0')
886: wl = RB_MAX(winlinks, &s->windows);
1.43 nicm 887: else if (winptr[0] == '+' || winptr[0] == '-')
888: wl = cmd_find_window_offset(winptr, s, &ambiguous);
889: else
1.38 nicm 890: wl = cmd_lookup_window(s, winptr, &ambiguous);
891: if (wl == NULL)
1.5 nicm 892: goto not_found;
1.35 nicm 893:
1.5 nicm 894: if (sessptr != NULL)
1.68 nicm 895: free(sessptr);
1.5 nicm 896: return (wl);
897:
1.8 nicm 898: no_colon:
1.38 nicm 899: /*
900: * No colon in the string, first try special cases, then as a window
901: * and lastly as a session.
902: */
903: if (arg[0] == '!' && arg[1] == '\0') {
904: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
905: goto not_found;
1.41 nicm 906: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 907: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 908: goto lookup_session;
909: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
910: goto lookup_session;
1.8 nicm 911:
912: if (sp != NULL)
913: *sp = s;
914:
915: return (wl);
916:
1.41 nicm 917: lookup_session:
918: if (ambiguous)
919: goto not_found;
1.53 nicm 920: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 921: goto no_session;
922:
923: if (sp != NULL)
924: *sp = s;
925:
926: return (s->curw);
927:
1.5 nicm 928: no_session:
929: if (ambiguous)
1.80 nicm 930: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 931: else
1.80 nicm 932: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 933: free(sessptr);
1.5 nicm 934: return (NULL);
935:
936: not_found:
937: if (ambiguous)
1.80 nicm 938: cmdq_error(cmdq, "multiple windows: %s", arg);
1.5 nicm 939: else
1.80 nicm 940: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 941: free(sessptr);
1.5 nicm 942: return (NULL);
943: }
1.1 nicm 944:
1.43 nicm 945: struct winlink *
946: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
947: {
948: struct winlink *wl;
949: int offset = 1;
950:
951: if (winptr[1] != '\0')
952: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
953: if (offset == 0)
954: wl = cmd_lookup_window(s, winptr, ambiguous);
955: else {
956: if (winptr[0] == '+')
957: wl = winlink_next_by_number(s->curw, s, offset);
958: else
959: wl = winlink_previous_by_number(s->curw, s, offset);
960: }
961:
962: return (wl);
963: }
964:
1.5 nicm 965: /*
966: * Find the target session and window index, whether or not it exists in the
967: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 968: * used when parsing an argument for a window target that may not exist (for
969: * example if it is going to be created).
1.5 nicm 970: */
971: int
1.80 nicm 972: cmd_find_index(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.5 nicm 973: {
974: struct session *s;
1.38 nicm 975: struct winlink *wl;
1.8 nicm 976: const char *winptr;
1.5 nicm 977: char *sessptr = NULL;
978: int idx, ambiguous = 0;
979:
980: /*
981: * Find the current session. There must always be a current session, if
982: * it can't be found, report an error.
983: */
1.80 nicm 984: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
985: cmdq_error(cmdq, "can't establish current session");
1.9 nicm 986: return (-2);
1.1 nicm 987: }
1.5 nicm 988:
989: /* A NULL argument means the current session and "no window" (-1). */
990: if (arg == NULL) {
991: if (sp != NULL)
992: *sp = s;
993: return (-1);
994: }
995:
996: /* Time to look at the argument. If it is empty, that is an error. */
997: if (*arg == '\0')
998: goto not_found;
999:
1000: /* Find the separating colon. If none, assume the current session. */
1001: winptr = strchr(arg, ':');
1002: if (winptr == NULL)
1.8 nicm 1003: goto no_colon;
1004: winptr++; /* skip : */
1005: sessptr = xstrdup(arg);
1006: *strchr(sessptr, ':') = '\0';
1.5 nicm 1007:
1008: /* Try to lookup the session if present. */
1009: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 1010: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 1011: goto no_session;
1012: }
1.1 nicm 1013: if (sp != NULL)
1014: *sp = s;
1015:
1.5 nicm 1016: /*
1.8 nicm 1017: * Then work out the window. An empty string is a new window otherwise
1018: * try to look it up in the session.
1.5 nicm 1019: */
1.8 nicm 1020: if (*winptr == '\0')
1.38 nicm 1021: idx = -1;
1022: else if (winptr[0] == '!' && winptr[1] == '\0') {
1023: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1024: goto not_found;
1025: idx = wl->idx;
1.41 nicm 1026: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 1027: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 1028: goto invalid_index;
1029: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1030: goto invalid_index;
1.35 nicm 1031:
1.68 nicm 1032: free(sessptr);
1.5 nicm 1033: return (idx);
1034:
1.8 nicm 1035: no_colon:
1.38 nicm 1036: /*
1037: * No colon in the string, first try special cases, then as a window
1038: * and lastly as a session.
1039: */
1040: if (arg[0] == '!' && arg[1] == '\0') {
1041: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1042: goto not_found;
1043: idx = wl->idx;
1.41 nicm 1044: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1045: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1046: goto lookup_session;
1047: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1048: goto lookup_session;
1.8 nicm 1049:
1050: if (sp != NULL)
1051: *sp = s;
1052:
1053: return (idx);
1054:
1.41 nicm 1055: lookup_session:
1056: if (ambiguous)
1057: goto not_found;
1.53 nicm 1058: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1059: goto no_session;
1060:
1061: if (sp != NULL)
1062: *sp = s;
1063:
1064: return (-1);
1065:
1.5 nicm 1066: no_session:
1067: if (ambiguous)
1.80 nicm 1068: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 1069: else
1.80 nicm 1070: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 1071: free(sessptr);
1.5 nicm 1072: return (-2);
1073:
1.41 nicm 1074: invalid_index:
1075: if (ambiguous)
1076: goto not_found;
1.80 nicm 1077: cmdq_error(cmdq, "invalid index: %s", arg);
1.41 nicm 1078:
1.68 nicm 1079: free(sessptr);
1.41 nicm 1080: return (-2);
1081:
1.5 nicm 1082: not_found:
1083: if (ambiguous)
1.80 nicm 1084: cmdq_error(cmdq, "multiple windows: %s", arg);
1.1 nicm 1085: else
1.80 nicm 1086: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 1087: free(sessptr);
1.5 nicm 1088: return (-2);
1.12 nicm 1089: }
1090:
1.43 nicm 1091: int
1092: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1093: {
1094: int idx, offset = 1;
1095:
1096: if (winptr[1] != '\0')
1097: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1098: if (offset == 0)
1099: idx = cmd_lookup_index(s, winptr, ambiguous);
1100: else {
1101: if (winptr[0] == '+') {
1102: if (s->curw->idx == INT_MAX)
1103: idx = cmd_lookup_index(s, winptr, ambiguous);
1104: else
1105: idx = s->curw->idx + offset;
1106: } else {
1107: if (s->curw->idx == 0)
1108: idx = cmd_lookup_index(s, winptr, ambiguous);
1109: else
1110: idx = s->curw->idx - offset;
1111: }
1112: }
1113:
1114: return (idx);
1115: }
1116:
1.12 nicm 1117: /*
1118: * Find the target session, window and pane number or report an error and
1119: * return NULL. The pane number is separated from the session:window by a .,
1120: * such as mysession:mywindow.0.
1121: */
1122: struct winlink *
1.80 nicm 1123: cmd_find_pane(struct cmd_q *cmdq,
1.12 nicm 1124: const char *arg, struct session **sp, struct window_pane **wpp)
1125: {
1.55 nicm 1126: struct session *s;
1127: struct winlink *wl;
1128: const char *period, *errstr;
1129: char *winptr, *paneptr;
1130: u_int idx;
1.12 nicm 1131:
1132: /* Get the current session. */
1.80 nicm 1133: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
1134: cmdq_error(cmdq, "can't establish current session");
1.12 nicm 1135: return (NULL);
1136: }
1137: if (sp != NULL)
1138: *sp = s;
1139:
1140: /* A NULL argument means the current session, window and pane. */
1141: if (arg == NULL) {
1142: *wpp = s->curw->window->active;
1143: return (s->curw);
1.51 nicm 1144: }
1145:
1146: /* Lookup as pane id. */
1147: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 1148: s = cmd_window_session(cmdq, (*wpp)->window, &wl);
1.51 nicm 1149: if (sp != NULL)
1150: *sp = s;
1151: return (wl);
1.12 nicm 1152: }
1153:
1154: /* Look for a separating period. */
1155: if ((period = strrchr(arg, '.')) == NULL)
1156: goto no_period;
1157:
1158: /* Pull out the window part and parse it. */
1159: winptr = xstrdup(arg);
1160: winptr[period - arg] = '\0';
1161: if (*winptr == '\0')
1162: wl = s->curw;
1.80 nicm 1163: else if ((wl = cmd_find_window(cmdq, winptr, sp)) == NULL)
1.12 nicm 1164: goto error;
1165:
1166: /* Find the pane section and look it up. */
1167: paneptr = winptr + (period - arg) + 1;
1168: if (*paneptr == '\0')
1169: *wpp = wl->window->active;
1.43 nicm 1170: else if (paneptr[0] == '+' || paneptr[0] == '-')
1171: *wpp = cmd_find_pane_offset(paneptr, wl);
1172: else {
1.12 nicm 1173: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1174: if (errstr != NULL)
1175: goto lookup_string;
1.12 nicm 1176: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1177: if (*wpp == NULL)
1178: goto lookup_string;
1.12 nicm 1179: }
1180:
1.68 nicm 1181: free(winptr);
1.12 nicm 1182: return (wl);
1183:
1.36 nicm 1184: lookup_string:
1185: /* Try pane string description. */
1.55 nicm 1186: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.80 nicm 1187: cmdq_error(cmdq, "can't find pane: %s", paneptr);
1.36 nicm 1188: goto error;
1189: }
1190:
1.68 nicm 1191: free(winptr);
1.39 nicm 1192: return (wl);
1.36 nicm 1193:
1.12 nicm 1194: no_period:
1195: /* Try as a pane number alone. */
1196: idx = strtonum(arg, 0, INT_MAX, &errstr);
1197: if (errstr != NULL)
1198: goto lookup_window;
1199:
1200: /* Try index in the current session and window. */
1201: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1202: goto lookup_window;
1.35 nicm 1203:
1.12 nicm 1204: return (s->curw);
1205:
1206: lookup_window:
1.36 nicm 1207: /* Try pane string description. */
1.55 nicm 1208: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1209: return (s->curw);
1210:
1.12 nicm 1211: /* Try as a window and use the active pane. */
1.80 nicm 1212: if ((wl = cmd_find_window(cmdq, arg, sp)) != NULL)
1.12 nicm 1213: *wpp = wl->window->active;
1214: return (wl);
1.35 nicm 1215:
1.12 nicm 1216: error:
1.68 nicm 1217: free(winptr);
1.12 nicm 1218: return (NULL);
1.43 nicm 1219: }
1220:
1221: struct window_pane *
1222: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1223: {
1224: struct window *w = wl->window;
1225: struct window_pane *wp = w->active;
1226: u_int offset = 1;
1227:
1228: if (paneptr[1] != '\0')
1229: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1230: if (offset > 0) {
1231: if (paneptr[0] == '+')
1232: wp = window_pane_next_by_number(w, wp, offset);
1233: else
1234: wp = window_pane_previous_by_number(w, wp, offset);
1235: }
1236:
1237: return (wp);
1.15 nicm 1238: }
1239:
1240: /* Replace the first %% or %idx in template by s. */
1241: char *
1.75 nicm 1242: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 1243: {
1.75 nicm 1244: char ch, *buf;
1245: const char *ptr;
1.84 nicm 1246: int replaced;
1247: size_t len;
1.15 nicm 1248:
1.76 nicm 1249: if (strchr(template, '%') == NULL)
1.15 nicm 1250: return (xstrdup(template));
1251:
1252: buf = xmalloc(1);
1253: *buf = '\0';
1254: len = 0;
1255: replaced = 0;
1256:
1257: ptr = template;
1258: while (*ptr != '\0') {
1259: switch (ch = *ptr++) {
1260: case '%':
1261: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1262: if (*ptr != '%' || replaced)
1263: break;
1264: replaced = 1;
1265: }
1266: ptr++;
1267:
1268: len += strlen(s);
1269: buf = xrealloc(buf, 1, len + 1);
1270: strlcat(buf, s, len + 1);
1271: continue;
1272: }
1273: buf = xrealloc(buf, 1, len + 2);
1274: buf[len++] = ch;
1275: buf[len] = '\0';
1276: }
1277:
1278: return (buf);
1.57 nicm 1279: }
1280:
1.61 nicm 1281: /*
1282: * Return the default path for a new pane, using the given path or the
1283: * default-path option if it is NULL. Several special values are accepted: the
1284: * empty string or relative path for the current pane's working directory, ~
1285: * for the user's home, - for the session working directory, . for the tmux
1286: * server's working directory. The default on failure is the session's working
1287: * directory.
1288: */
1.59 nicm 1289: const char *
1.80 nicm 1290: cmd_get_default_path(struct cmd_q *cmdq, const char *cwd)
1.57 nicm 1291: {
1.80 nicm 1292: struct client *c = cmdq->client;
1.57 nicm 1293: struct session *s;
1.58 stsp 1294: struct environ_entry *envent;
1.61 nicm 1295: const char *root;
1296: char tmp[MAXPATHLEN];
1297: struct passwd *pw;
1298: int n;
1299: size_t skip;
1300: static char path[MAXPATHLEN];
1.57 nicm 1301:
1.80 nicm 1302: if ((s = cmd_current_session(cmdq, 0)) == NULL)
1.57 nicm 1303: return (NULL);
1304:
1.61 nicm 1305: if (cwd == NULL)
1306: cwd = options_get_string(&s->options, "default-path");
1307:
1308: skip = 1;
1309: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1310: /* User's home directory - $HOME. */
1311: skip = 5;
1312: goto find_home;
1313: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1314: /* User's home directory - ~. */
1315: goto find_home;
1316: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1317: /* Session working directory. */
1318: root = s->cwd;
1319: goto complete_path;
1.66 nicm 1320: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1321: /* Server working directory. */
1322: if (getcwd(tmp, sizeof tmp) != NULL) {
1323: root = tmp;
1324: goto complete_path;
1.57 nicm 1325: }
1326: return (s->cwd);
1.61 nicm 1327: } else if (*cwd == '/') {
1328: /* Absolute path. */
1329: return (cwd);
1330: } else {
1331: /* Empty or relative path. */
1.80 nicm 1332: if (c != NULL && c->session == NULL && c->cwd != NULL)
1333: root = c->cwd;
1334: else if (s->curw != NULL)
1.71 nicm 1335: root = get_proc_cwd(s->curw->window->active->fd);
1.61 nicm 1336: else
1337: return (s->cwd);
1338: skip = 0;
1.62 nicm 1339: if (root != NULL)
1340: goto complete_path;
1.57 nicm 1341: }
1.61 nicm 1342:
1343: return (s->cwd);
1344:
1345: find_home:
1346: envent = environ_find(&global_environ, "HOME");
1347: if (envent != NULL && *envent->value != '\0')
1348: root = envent->value;
1349: else if ((pw = getpwuid(getuid())) != NULL)
1350: root = pw->pw_dir;
1351: else
1352: return (s->cwd);
1353:
1354: complete_path:
1.65 nicm 1355: if (root[skip] == '\0') {
1356: strlcpy(path, root, sizeof path);
1357: return (path);
1358: }
1.61 nicm 1359: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1360: if (n > 0 && (size_t)n < sizeof path)
1361: return (path);
1362: return (s->cwd);
1.1 nicm 1363: }
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