Annotation of src/usr.bin/tmux/cmd.c, Revision 1.83
1.83 ! nicm 1: /* $OpenBSD: cmd.c,v 1.82 2013/03/25 10:09:05 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;
258: if (entry->check != NULL && entry->check(args) != 0)
259: goto usage;
1.1 nicm 260:
1.80 nicm 261: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 262: cmd->entry = entry;
1.49 nicm 263: cmd->args = args;
1.80 nicm 264:
265: if (file != NULL)
266: cmd->file = xstrdup(file);
267: cmd->line = line;
268:
1.1 nicm 269: return (cmd);
270:
271: ambiguous:
272: *s = '\0';
273: for (entryp = cmd_table; *entryp != NULL; entryp++) {
274: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
275: continue;
276: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
277: break;
278: if (strlcat(s, ", ", sizeof s) >= sizeof s)
279: break;
280: }
281: s[strlen(s) - 2] = '\0';
282: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
283: return (NULL);
284:
285: usage:
1.49 nicm 286: if (args != NULL)
287: args_free(args);
1.1 nicm 288: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
289: return (NULL);
290: }
291:
292: size_t
293: cmd_print(struct cmd *cmd, char *buf, size_t len)
294: {
1.49 nicm 295: size_t off, used;
296:
297: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
298: if (off < len) {
299: used = args_print(cmd->args, buf + off, len - off);
300: if (used == 0)
1.64 nicm 301: off--;
302: else
1.49 nicm 303: off += used;
1.64 nicm 304: buf[off] = '\0';
1.49 nicm 305: }
306: return (off);
1.1 nicm 307: }
308:
1.5 nicm 309: /*
310: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 311: * context has one; 2) the most recently used session containing the pty of the
312: * calling client, if any; 3) the session specified in the TMUX variable from
313: * the environment (as passed from the client); 4) the most recently used
314: * session from all sessions.
1.5 nicm 315: */
1.1 nicm 316: struct session *
1.80 nicm 317: cmd_current_session(struct cmd_q *cmdq, int prefer_unattached)
1.1 nicm 318: {
1.80 nicm 319: struct msg_command_data *data = cmdq->msgdata;
320: struct client *c = cmdq->client;
1.5 nicm 321: struct session *s;
1.47 nicm 322: struct sessionslist ss;
1.11 nicm 323: struct winlink *wl;
324: struct window_pane *wp;
1.80 nicm 325: const char *path;
1.11 nicm 326: int found;
1.1 nicm 327:
1.80 nicm 328: if (c != NULL && c->session != NULL)
329: return (c->session);
1.1 nicm 330:
1.11 nicm 331: /*
1.81 nicm 332: * If the name of the calling client's pty is known, build a list of
333: * the sessions that contain it and if any choose either the first or
334: * the newest.
1.11 nicm 335: */
1.80 nicm 336: path = c == NULL ? NULL : c->tty.path;
337: if (path != NULL) {
1.11 nicm 338: ARRAY_INIT(&ss);
1.47 nicm 339: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 340: found = 0;
341: RB_FOREACH(wl, winlinks, &s->windows) {
342: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
1.80 nicm 343: if (strcmp(wp->tty, path) == 0) {
1.11 nicm 344: found = 1;
345: break;
346: }
347: }
348: if (found)
349: break;
350: }
351: if (found)
352: ARRAY_ADD(&ss, s);
353: }
354:
1.47 nicm 355: s = cmd_choose_session_list(&ss);
1.11 nicm 356: ARRAY_FREE(&ss);
357: if (s != NULL)
358: return (s);
359: }
360:
361: /* Use the session from the TMUX environment variable. */
1.83 ! nicm 362: if (data != NULL && data->pid == getpid() && data->session_id != -1) {
! 363: s = session_find_by_id(data->session_id);
1.47 nicm 364: if (s != NULL)
365: return (s);
366: }
367:
1.52 nicm 368: return (cmd_choose_session(prefer_unattached));
1.47 nicm 369: }
370:
1.72 nicm 371: /* Is this session better? */
372: int
373: cmd_session_better(struct session *s, struct session *best,
374: int prefer_unattached)
375: {
376: if (best == NULL)
1.74 nicm 377: return (1);
1.72 nicm 378: if (prefer_unattached) {
379: if (!(best->flags & SESSION_UNATTACHED) &&
380: (s->flags & SESSION_UNATTACHED))
1.74 nicm 381: return (1);
1.72 nicm 382: else if ((best->flags & SESSION_UNATTACHED) &&
383: !(s->flags & SESSION_UNATTACHED))
1.74 nicm 384: return (0);
1.72 nicm 385: }
386: return (timercmp(&s->activity_time, &best->activity_time, >));
387: }
388:
1.52 nicm 389: /*
390: * Find the most recently used session, preferring unattached if the flag is
391: * set.
392: */
1.47 nicm 393: struct session *
1.52 nicm 394: cmd_choose_session(int prefer_unattached)
1.47 nicm 395: {
1.72 nicm 396: struct session *s, *best;
1.47 nicm 397:
1.72 nicm 398: best = NULL;
1.47 nicm 399: RB_FOREACH(s, sessions, &sessions) {
1.72 nicm 400: if (cmd_session_better(s, best, prefer_unattached))
401: best = s;
1.47 nicm 402: }
1.72 nicm 403: return (best);
1.5 nicm 404: }
405:
1.31 nicm 406: /* Find the most recently used session from a list. */
1.5 nicm 407: struct session *
1.47 nicm 408: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 409: {
1.31 nicm 410: struct session *s, *sbest;
1.5 nicm 411: struct timeval *tv = NULL;
412: u_int i;
413:
1.31 nicm 414: sbest = NULL;
1.11 nicm 415: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
416: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 417: continue;
418:
1.31 nicm 419: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
420: sbest = s;
421: tv = &s->activity_time;
1.1 nicm 422: }
423: }
1.5 nicm 424:
1.31 nicm 425: return (sbest);
1.1 nicm 426: }
427:
1.30 nicm 428: /*
429: * Find the current client. First try the current client if set, then pick the
1.31 nicm 430: * most recently used of the clients attached to the current session if any,
431: * then of all clients.
1.30 nicm 432: */
433: struct client *
1.80 nicm 434: cmd_current_client(struct cmd_q *cmdq)
1.30 nicm 435: {
436: struct session *s;
437: struct client *c;
438: struct clients cc;
439: u_int i;
440:
1.80 nicm 441: if (cmdq->client != NULL && cmdq->client->session != NULL)
442: return (cmdq->client);
1.30 nicm 443:
444: /*
445: * No current client set. Find the current session and return the
446: * newest of its clients.
447: */
1.80 nicm 448: s = cmd_current_session(cmdq, 0);
1.30 nicm 449: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
450: ARRAY_INIT(&cc);
451: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
452: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
453: continue;
454: if (s == c->session)
455: ARRAY_ADD(&cc, c);
456: }
457:
1.31 nicm 458: c = cmd_choose_client(&cc);
1.30 nicm 459: ARRAY_FREE(&cc);
460: if (c != NULL)
461: return (c);
462: }
463:
1.31 nicm 464: return (cmd_choose_client(&clients));
1.30 nicm 465: }
466:
1.31 nicm 467: /* Choose the most recently used client from a list. */
1.20 nicm 468: struct client *
1.31 nicm 469: cmd_choose_client(struct clients *cc)
1.20 nicm 470: {
1.31 nicm 471: struct client *c, *cbest;
1.20 nicm 472: struct timeval *tv = NULL;
473: u_int i;
474:
1.31 nicm 475: cbest = NULL;
1.30 nicm 476: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
477: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 478: continue;
479: if (c->session == NULL)
480: continue;
481:
1.31 nicm 482: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
483: cbest = c;
484: tv = &c->activity_time;
1.20 nicm 485: }
486: }
487:
1.31 nicm 488: return (cbest);
1.20 nicm 489: }
490:
1.5 nicm 491: /* Find the target client or report an error and return NULL. */
1.1 nicm 492: struct client *
1.80 nicm 493: cmd_find_client(struct cmd_q *cmdq, const char *arg, int quiet)
1.1 nicm 494: {
1.30 nicm 495: struct client *c;
1.5 nicm 496: char *tmparg;
497: size_t arglen;
1.1 nicm 498:
1.5 nicm 499: /* A NULL argument means the current client. */
1.79 nicm 500: if (arg == NULL) {
1.80 nicm 501: c = cmd_current_client(cmdq);
1.79 nicm 502: if (c == NULL && !quiet)
1.80 nicm 503: cmdq_error(cmdq, "no clients");
1.79 nicm 504: return (c);
505: }
1.5 nicm 506: tmparg = xstrdup(arg);
507:
508: /* Trim a single trailing colon if any. */
509: arglen = strlen(tmparg);
510: if (arglen != 0 && tmparg[arglen - 1] == ':')
511: tmparg[arglen - 1] = '\0';
512:
513: /* Find the client, if any. */
514: c = cmd_lookup_client(tmparg);
515:
516: /* If no client found, report an error. */
1.79 nicm 517: if (c == NULL && !quiet)
1.80 nicm 518: cmdq_error(cmdq, "client not found: %s", tmparg);
1.5 nicm 519:
1.68 nicm 520: free(tmparg);
1.5 nicm 521: return (c);
522: }
523:
524: /*
525: * Lookup a client by device path. Either of a full match and a match without a
526: * leading _PATH_DEV ("/dev/") is accepted.
527: */
528: struct client *
529: cmd_lookup_client(const char *name)
530: {
531: struct client *c;
532: const char *path;
533: u_int i;
534:
535: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 536: c = ARRAY_ITEM(&clients, i);
1.81 nicm 537: if (c == NULL || c->session == NULL || c->tty.path == NULL)
1.5 nicm 538: continue;
539: path = c->tty.path;
540:
541: /* Check for exact matches. */
542: if (strcmp(name, path) == 0)
543: return (c);
544:
545: /* Check without leading /dev if present. */
546: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
547: continue;
548: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
549: return (c);
550: }
551:
552: return (NULL);
553: }
554:
1.83 ! nicm 555: /* Find the target session or report an error and return NULL. */
! 556: struct session *
! 557: cmd_lookup_session_id(const char *arg)
! 558: {
! 559: char *endptr;
! 560: long id;
! 561:
! 562: if (arg[0] != '$')
! 563: return (NULL);
! 564: id = strtol(arg + 1, &endptr, 10);
! 565: if (arg[1] != '\0' && *endptr == '\0')
! 566: return (session_find_by_id(id));
! 567: return (NULL);
! 568: }
! 569:
1.5 nicm 570: /* Lookup a session by name. If no session is found, NULL is returned. */
571: struct session *
572: cmd_lookup_session(const char *name, int *ambiguous)
573: {
574: struct session *s, *sfound;
575:
576: *ambiguous = 0;
1.83 ! nicm 577:
! 578: /* Look for $id first. */
! 579: if ((s = cmd_lookup_session_id(name)) != NULL)
! 580: return (s);
1.5 nicm 581:
582: /*
1.28 nicm 583: * Look for matches. First look for exact matches - session names must
584: * be unique so an exact match can't be ambigious and can just be
585: * returned.
1.5 nicm 586: */
1.47 nicm 587: if ((s = session_find(name)) != NULL)
588: return (s);
1.28 nicm 589:
590: /*
591: * Otherwise look for partial matches, returning early if it is found to
592: * be ambiguous.
593: */
594: sfound = NULL;
1.47 nicm 595: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 596: if (strncmp(name, s->name, strlen(name)) == 0 ||
597: fnmatch(name, s->name, 0) == 0) {
598: if (sfound != NULL) {
599: *ambiguous = 1;
600: return (NULL);
601: }
602: sfound = s;
603: }
604: }
1.35 nicm 605: return (sfound);
1.5 nicm 606: }
607:
608: /*
1.8 nicm 609: * Lookup a window or return -1 if not found or ambigious. First try as an
610: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 611: * idx if the window index is a valid number but there is no window with that
1.8 nicm 612: * index.
1.5 nicm 613: */
614: struct winlink *
615: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
616: {
617: struct winlink *wl, *wlfound;
618: const char *errstr;
619: u_int idx;
620:
621: *ambiguous = 0;
622:
1.60 nicm 623: /* Try as a window id. */
624: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
625: return (wl);
626:
1.5 nicm 627: /* First see if this is a valid window index in this session. */
628: idx = strtonum(name, 0, INT_MAX, &errstr);
629: if (errstr == NULL) {
630: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
631: return (wl);
632: }
1.35 nicm 633:
1.5 nicm 634: /* Look for exact matches, error if more than one. */
635: wlfound = NULL;
636: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 637: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 638: if (wlfound != NULL) {
639: *ambiguous = 1;
640: return (NULL);
641: }
642: wlfound = wl;
1.1 nicm 643: }
644: }
1.5 nicm 645: if (wlfound != NULL)
646: return (wlfound);
647:
648: /* Now look for pattern matches, again error if multiple. */
649: wlfound = NULL;
650: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 651: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
652: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 653: if (wlfound != NULL) {
654: *ambiguous = 1;
655: return (NULL);
656: }
657: wlfound = wl;
658: }
1.35 nicm 659: }
1.5 nicm 660: if (wlfound != NULL)
661: return (wlfound);
662:
663: return (NULL);
1.1 nicm 664: }
665:
1.8 nicm 666: /*
667: * Find a window index - if the window doesn't exist, check if it is a
668: * potential index and return it anyway.
669: */
670: int
671: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
672: {
673: struct winlink *wl;
674: const char *errstr;
675: u_int idx;
676:
677: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
678: return (wl->idx);
679: if (*ambiguous)
680: return (-1);
681:
682: idx = strtonum(name, 0, INT_MAX, &errstr);
683: if (errstr == NULL)
684: return (idx);
685:
686: return (-1);
687: }
688:
1.60 nicm 689: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 690: struct window_pane *
691: cmd_lookup_paneid(const char *arg)
692: {
693: const char *errstr;
694: u_int paneid;
695:
696: if (*arg != '%')
697: return (NULL);
698:
699: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
700: if (errstr != NULL)
701: return (NULL);
702: return (window_pane_find_by_id(paneid));
703: }
704:
1.60 nicm 705: /* Lookup window id in a session. An initial @ means a window id. */
706: struct winlink *
707: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
708: {
709: const char *errstr;
710: u_int windowid;
711:
712: if (*arg != '@')
713: return (NULL);
714:
715: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
716: if (errstr != NULL)
717: return (NULL);
718: return (winlink_find_by_window_id(&s->windows, windowid));
719: }
720:
721: /* Lookup window id. An initial @ means a window id. */
722: struct window *
723: cmd_lookup_windowid(const char *arg)
724: {
725: const char *errstr;
726: u_int windowid;
727:
728: if (*arg != '@')
729: return (NULL);
730:
731: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
732: if (errstr != NULL)
733: return (NULL);
734: return (window_find_by_id(windowid));
735: }
736:
737: /* Find session and winlink for window. */
1.51 nicm 738: struct session *
1.80 nicm 739: cmd_window_session(struct cmd_q *cmdq, struct window *w, struct winlink **wlp)
1.51 nicm 740: {
741: struct session *s;
742: struct sessionslist ss;
743: struct winlink *wl;
744:
1.60 nicm 745: /* If this window is in the current session, return that winlink. */
1.80 nicm 746: s = cmd_current_session(cmdq, 0);
1.51 nicm 747: if (s != NULL) {
1.60 nicm 748: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 749: if (wl != NULL) {
750: if (wlp != NULL)
751: *wlp = wl;
752: return (s);
753: }
754: }
755:
1.60 nicm 756: /* Otherwise choose from all sessions with this window. */
1.51 nicm 757: ARRAY_INIT(&ss);
758: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 759: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 760: ARRAY_ADD(&ss, s);
761: }
762: s = cmd_choose_session_list(&ss);
763: ARRAY_FREE(&ss);
764: if (wlp != NULL)
1.60 nicm 765: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 766: return (s);
767: }
768:
1.5 nicm 769: /* Find the target session or report an error and return NULL. */
1.1 nicm 770: struct session *
1.80 nicm 771: cmd_find_session(struct cmd_q *cmdq, const char *arg, int prefer_unattached)
1.1 nicm 772: {
1.51 nicm 773: struct session *s;
774: struct window_pane *wp;
1.60 nicm 775: struct window *w;
1.51 nicm 776: struct client *c;
777: char *tmparg;
778: size_t arglen;
779: int ambiguous;
1.1 nicm 780:
1.5 nicm 781: /* A NULL argument means the current session. */
1.1 nicm 782: if (arg == NULL)
1.80 nicm 783: return (cmd_current_session(cmdq, prefer_unattached));
1.5 nicm 784:
1.60 nicm 785: /* Lookup as pane id or window id. */
1.51 nicm 786: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.80 nicm 787: return (cmd_window_session(cmdq, wp->window, NULL));
1.60 nicm 788: if ((w = cmd_lookup_windowid(arg)) != NULL)
1.80 nicm 789: return (cmd_window_session(cmdq, w, NULL));
1.51 nicm 790:
1.5 nicm 791: /* Trim a single trailing colon if any. */
1.54 nicm 792: tmparg = xstrdup(arg);
1.5 nicm 793: arglen = strlen(tmparg);
794: if (arglen != 0 && tmparg[arglen - 1] == ':')
795: tmparg[arglen - 1] = '\0';
796:
1.53 nicm 797: /* An empty session name is the current session. */
798: if (*tmparg == '\0') {
1.68 nicm 799: free(tmparg);
1.80 nicm 800: return (cmd_current_session(cmdq, prefer_unattached));
1.53 nicm 801: }
802:
1.5 nicm 803: /* Find the session, if any. */
804: s = cmd_lookup_session(tmparg, &ambiguous);
805:
806: /* If it doesn't, try to match it as a client. */
807: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
808: s = c->session;
809:
810: /* If no session found, report an error. */
811: if (s == NULL) {
812: if (ambiguous)
1.80 nicm 813: cmdq_error(cmdq, "more than one session: %s", tmparg);
1.5 nicm 814: else
1.80 nicm 815: cmdq_error(cmdq, "session not found: %s", tmparg);
1.1 nicm 816: }
1.5 nicm 817:
1.68 nicm 818: free(tmparg);
1.1 nicm 819: return (s);
820: }
821:
1.5 nicm 822: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 823: struct winlink *
1.80 nicm 824: cmd_find_window(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.1 nicm 825: {
1.51 nicm 826: struct session *s;
827: struct winlink *wl;
828: struct window_pane *wp;
829: const char *winptr;
830: char *sessptr = NULL;
831: int ambiguous = 0;
1.5 nicm 832:
833: /*
834: * Find the current session. There must always be a current session, if
835: * it can't be found, report an error.
836: */
1.80 nicm 837: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
838: cmdq_error(cmdq, "can't establish current session");
1.5 nicm 839: return (NULL);
840: }
841:
842: /* A NULL argument means the current session and window. */
843: if (arg == NULL) {
844: if (sp != NULL)
845: *sp = s;
846: return (s->curw);
847: }
848:
1.51 nicm 849: /* Lookup as pane id. */
850: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 851: s = cmd_window_session(cmdq, wp->window, &wl);
1.51 nicm 852: if (sp != NULL)
853: *sp = s;
854: return (wl);
855: }
856:
1.5 nicm 857: /* Time to look at the argument. If it is empty, that is an error. */
858: if (*arg == '\0')
859: goto not_found;
860:
1.8 nicm 861: /* Find the separating colon and split into window and session. */
1.5 nicm 862: winptr = strchr(arg, ':');
863: if (winptr == NULL)
1.8 nicm 864: goto no_colon;
865: winptr++; /* skip : */
866: sessptr = xstrdup(arg);
867: *strchr(sessptr, ':') = '\0';
1.5 nicm 868:
869: /* Try to lookup the session if present. */
1.8 nicm 870: if (*sessptr != '\0') {
871: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 872: goto no_session;
873: }
874: if (sp != NULL)
875: *sp = s;
876:
877: /*
878: * Then work out the window. An empty string is the current window,
1.38 nicm 879: * otherwise try special cases then to look it up in the session.
1.5 nicm 880: */
1.8 nicm 881: if (*winptr == '\0')
1.5 nicm 882: wl = s->curw;
1.38 nicm 883: else if (winptr[0] == '!' && winptr[1] == '\0')
884: wl = TAILQ_FIRST(&s->lastw);
1.73 nicm 885: else if (winptr[0] == '^' && winptr[1] == '\0')
886: wl = RB_MIN(winlinks, &s->windows);
887: else if (winptr[0] == '$' && winptr[1] == '\0')
888: wl = RB_MAX(winlinks, &s->windows);
1.43 nicm 889: else if (winptr[0] == '+' || winptr[0] == '-')
890: wl = cmd_find_window_offset(winptr, s, &ambiguous);
891: else
1.38 nicm 892: wl = cmd_lookup_window(s, winptr, &ambiguous);
893: if (wl == NULL)
1.5 nicm 894: goto not_found;
1.35 nicm 895:
1.5 nicm 896: if (sessptr != NULL)
1.68 nicm 897: free(sessptr);
1.5 nicm 898: return (wl);
899:
1.8 nicm 900: no_colon:
1.38 nicm 901: /*
902: * No colon in the string, first try special cases, then as a window
903: * and lastly as a session.
904: */
905: if (arg[0] == '!' && arg[1] == '\0') {
906: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
907: goto not_found;
1.41 nicm 908: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 909: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 910: goto lookup_session;
911: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
912: goto lookup_session;
1.8 nicm 913:
914: if (sp != NULL)
915: *sp = s;
916:
917: return (wl);
918:
1.41 nicm 919: lookup_session:
920: if (ambiguous)
921: goto not_found;
1.53 nicm 922: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 923: goto no_session;
924:
925: if (sp != NULL)
926: *sp = s;
927:
928: return (s->curw);
929:
1.5 nicm 930: no_session:
931: if (ambiguous)
1.80 nicm 932: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 933: else
1.80 nicm 934: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 935: free(sessptr);
1.5 nicm 936: return (NULL);
937:
938: not_found:
939: if (ambiguous)
1.80 nicm 940: cmdq_error(cmdq, "multiple windows: %s", arg);
1.5 nicm 941: else
1.80 nicm 942: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 943: free(sessptr);
1.5 nicm 944: return (NULL);
945: }
1.1 nicm 946:
1.43 nicm 947: struct winlink *
948: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
949: {
950: struct winlink *wl;
951: int offset = 1;
952:
953: if (winptr[1] != '\0')
954: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
955: if (offset == 0)
956: wl = cmd_lookup_window(s, winptr, ambiguous);
957: else {
958: if (winptr[0] == '+')
959: wl = winlink_next_by_number(s->curw, s, offset);
960: else
961: wl = winlink_previous_by_number(s->curw, s, offset);
962: }
963:
964: return (wl);
965: }
966:
1.5 nicm 967: /*
968: * Find the target session and window index, whether or not it exists in the
969: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 970: * used when parsing an argument for a window target that may not exist (for
971: * example if it is going to be created).
1.5 nicm 972: */
973: int
1.80 nicm 974: cmd_find_index(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.5 nicm 975: {
976: struct session *s;
1.38 nicm 977: struct winlink *wl;
1.8 nicm 978: const char *winptr;
1.5 nicm 979: char *sessptr = NULL;
980: int idx, ambiguous = 0;
981:
982: /*
983: * Find the current session. There must always be a current session, if
984: * it can't be found, report an error.
985: */
1.80 nicm 986: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
987: cmdq_error(cmdq, "can't establish current session");
1.9 nicm 988: return (-2);
1.1 nicm 989: }
1.5 nicm 990:
991: /* A NULL argument means the current session and "no window" (-1). */
992: if (arg == NULL) {
993: if (sp != NULL)
994: *sp = s;
995: return (-1);
996: }
997:
998: /* Time to look at the argument. If it is empty, that is an error. */
999: if (*arg == '\0')
1000: goto not_found;
1001:
1002: /* Find the separating colon. If none, assume the current session. */
1003: winptr = strchr(arg, ':');
1004: if (winptr == NULL)
1.8 nicm 1005: goto no_colon;
1006: winptr++; /* skip : */
1007: sessptr = xstrdup(arg);
1008: *strchr(sessptr, ':') = '\0';
1.5 nicm 1009:
1010: /* Try to lookup the session if present. */
1011: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 1012: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 1013: goto no_session;
1014: }
1.1 nicm 1015: if (sp != NULL)
1016: *sp = s;
1017:
1.5 nicm 1018: /*
1.8 nicm 1019: * Then work out the window. An empty string is a new window otherwise
1020: * try to look it up in the session.
1.5 nicm 1021: */
1.8 nicm 1022: if (*winptr == '\0')
1.38 nicm 1023: idx = -1;
1024: else if (winptr[0] == '!' && winptr[1] == '\0') {
1025: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1026: goto not_found;
1027: idx = wl->idx;
1.41 nicm 1028: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 1029: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 1030: goto invalid_index;
1031: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1032: goto invalid_index;
1.35 nicm 1033:
1.68 nicm 1034: free(sessptr);
1.5 nicm 1035: return (idx);
1036:
1.8 nicm 1037: no_colon:
1.38 nicm 1038: /*
1039: * No colon in the string, first try special cases, then as a window
1040: * and lastly as a session.
1041: */
1042: if (arg[0] == '!' && arg[1] == '\0') {
1043: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1044: goto not_found;
1045: idx = wl->idx;
1.41 nicm 1046: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1047: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1048: goto lookup_session;
1049: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1050: goto lookup_session;
1.8 nicm 1051:
1052: if (sp != NULL)
1053: *sp = s;
1054:
1055: return (idx);
1056:
1.41 nicm 1057: lookup_session:
1058: if (ambiguous)
1059: goto not_found;
1.53 nicm 1060: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1061: goto no_session;
1062:
1063: if (sp != NULL)
1064: *sp = s;
1065:
1066: return (-1);
1067:
1.5 nicm 1068: no_session:
1069: if (ambiguous)
1.80 nicm 1070: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 1071: else
1.80 nicm 1072: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 1073: free(sessptr);
1.5 nicm 1074: return (-2);
1075:
1.41 nicm 1076: invalid_index:
1077: if (ambiguous)
1078: goto not_found;
1.80 nicm 1079: cmdq_error(cmdq, "invalid index: %s", arg);
1.41 nicm 1080:
1.68 nicm 1081: free(sessptr);
1.41 nicm 1082: return (-2);
1083:
1.5 nicm 1084: not_found:
1085: if (ambiguous)
1.80 nicm 1086: cmdq_error(cmdq, "multiple windows: %s", arg);
1.1 nicm 1087: else
1.80 nicm 1088: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 1089: free(sessptr);
1.5 nicm 1090: return (-2);
1.12 nicm 1091: }
1092:
1.43 nicm 1093: int
1094: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1095: {
1096: int idx, offset = 1;
1097:
1098: if (winptr[1] != '\0')
1099: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1100: if (offset == 0)
1101: idx = cmd_lookup_index(s, winptr, ambiguous);
1102: else {
1103: if (winptr[0] == '+') {
1104: if (s->curw->idx == INT_MAX)
1105: idx = cmd_lookup_index(s, winptr, ambiguous);
1106: else
1107: idx = s->curw->idx + offset;
1108: } else {
1109: if (s->curw->idx == 0)
1110: idx = cmd_lookup_index(s, winptr, ambiguous);
1111: else
1112: idx = s->curw->idx - offset;
1113: }
1114: }
1115:
1116: return (idx);
1117: }
1118:
1.12 nicm 1119: /*
1120: * Find the target session, window and pane number or report an error and
1121: * return NULL. The pane number is separated from the session:window by a .,
1122: * such as mysession:mywindow.0.
1123: */
1124: struct winlink *
1.80 nicm 1125: cmd_find_pane(struct cmd_q *cmdq,
1.12 nicm 1126: const char *arg, struct session **sp, struct window_pane **wpp)
1127: {
1.55 nicm 1128: struct session *s;
1129: struct winlink *wl;
1130: const char *period, *errstr;
1131: char *winptr, *paneptr;
1132: u_int idx;
1.12 nicm 1133:
1134: /* Get the current session. */
1.80 nicm 1135: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
1136: cmdq_error(cmdq, "can't establish current session");
1.12 nicm 1137: return (NULL);
1138: }
1139: if (sp != NULL)
1140: *sp = s;
1141:
1142: /* A NULL argument means the current session, window and pane. */
1143: if (arg == NULL) {
1144: *wpp = s->curw->window->active;
1145: return (s->curw);
1.51 nicm 1146: }
1147:
1148: /* Lookup as pane id. */
1149: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 1150: s = cmd_window_session(cmdq, (*wpp)->window, &wl);
1.51 nicm 1151: if (sp != NULL)
1152: *sp = s;
1153: return (wl);
1.12 nicm 1154: }
1155:
1156: /* Look for a separating period. */
1157: if ((period = strrchr(arg, '.')) == NULL)
1158: goto no_period;
1159:
1160: /* Pull out the window part and parse it. */
1161: winptr = xstrdup(arg);
1162: winptr[period - arg] = '\0';
1163: if (*winptr == '\0')
1164: wl = s->curw;
1.80 nicm 1165: else if ((wl = cmd_find_window(cmdq, winptr, sp)) == NULL)
1.12 nicm 1166: goto error;
1167:
1168: /* Find the pane section and look it up. */
1169: paneptr = winptr + (period - arg) + 1;
1170: if (*paneptr == '\0')
1171: *wpp = wl->window->active;
1.43 nicm 1172: else if (paneptr[0] == '+' || paneptr[0] == '-')
1173: *wpp = cmd_find_pane_offset(paneptr, wl);
1174: else {
1.12 nicm 1175: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1176: if (errstr != NULL)
1177: goto lookup_string;
1.12 nicm 1178: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1179: if (*wpp == NULL)
1180: goto lookup_string;
1.12 nicm 1181: }
1182:
1.68 nicm 1183: free(winptr);
1.12 nicm 1184: return (wl);
1185:
1.36 nicm 1186: lookup_string:
1187: /* Try pane string description. */
1.55 nicm 1188: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.80 nicm 1189: cmdq_error(cmdq, "can't find pane: %s", paneptr);
1.36 nicm 1190: goto error;
1191: }
1192:
1.68 nicm 1193: free(winptr);
1.39 nicm 1194: return (wl);
1.36 nicm 1195:
1.12 nicm 1196: no_period:
1197: /* Try as a pane number alone. */
1198: idx = strtonum(arg, 0, INT_MAX, &errstr);
1199: if (errstr != NULL)
1200: goto lookup_window;
1201:
1202: /* Try index in the current session and window. */
1203: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1204: goto lookup_window;
1.35 nicm 1205:
1.12 nicm 1206: return (s->curw);
1207:
1208: lookup_window:
1.36 nicm 1209: /* Try pane string description. */
1.55 nicm 1210: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1211: return (s->curw);
1212:
1.12 nicm 1213: /* Try as a window and use the active pane. */
1.80 nicm 1214: if ((wl = cmd_find_window(cmdq, arg, sp)) != NULL)
1.12 nicm 1215: *wpp = wl->window->active;
1216: return (wl);
1.35 nicm 1217:
1.12 nicm 1218: error:
1.68 nicm 1219: free(winptr);
1.12 nicm 1220: return (NULL);
1.43 nicm 1221: }
1222:
1223: struct window_pane *
1224: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1225: {
1226: struct window *w = wl->window;
1227: struct window_pane *wp = w->active;
1228: u_int offset = 1;
1229:
1230: if (paneptr[1] != '\0')
1231: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1232: if (offset > 0) {
1233: if (paneptr[0] == '+')
1234: wp = window_pane_next_by_number(w, wp, offset);
1235: else
1236: wp = window_pane_previous_by_number(w, wp, offset);
1237: }
1238:
1239: return (wp);
1.15 nicm 1240: }
1241:
1242: /* Replace the first %% or %idx in template by s. */
1243: char *
1.75 nicm 1244: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 1245: {
1.75 nicm 1246: char ch, *buf;
1247: const char *ptr;
1248: int replaced;
1249: size_t len;
1.15 nicm 1250:
1.76 nicm 1251: if (strchr(template, '%') == NULL)
1.15 nicm 1252: return (xstrdup(template));
1253:
1254: buf = xmalloc(1);
1255: *buf = '\0';
1256: len = 0;
1257: replaced = 0;
1258:
1259: ptr = template;
1260: while (*ptr != '\0') {
1261: switch (ch = *ptr++) {
1262: case '%':
1263: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1264: if (*ptr != '%' || replaced)
1265: break;
1266: replaced = 1;
1267: }
1268: ptr++;
1269:
1270: len += strlen(s);
1271: buf = xrealloc(buf, 1, len + 1);
1272: strlcat(buf, s, len + 1);
1273: continue;
1274: }
1275: buf = xrealloc(buf, 1, len + 2);
1276: buf[len++] = ch;
1277: buf[len] = '\0';
1278: }
1279:
1280: return (buf);
1.57 nicm 1281: }
1282:
1.61 nicm 1283: /*
1284: * Return the default path for a new pane, using the given path or the
1285: * default-path option if it is NULL. Several special values are accepted: the
1286: * empty string or relative path for the current pane's working directory, ~
1287: * for the user's home, - for the session working directory, . for the tmux
1288: * server's working directory. The default on failure is the session's working
1289: * directory.
1290: */
1.59 nicm 1291: const char *
1.80 nicm 1292: cmd_get_default_path(struct cmd_q *cmdq, const char *cwd)
1.57 nicm 1293: {
1.80 nicm 1294: struct client *c = cmdq->client;
1.57 nicm 1295: struct session *s;
1.58 stsp 1296: struct environ_entry *envent;
1.61 nicm 1297: const char *root;
1298: char tmp[MAXPATHLEN];
1299: struct passwd *pw;
1300: int n;
1301: size_t skip;
1302: static char path[MAXPATHLEN];
1.57 nicm 1303:
1.80 nicm 1304: if ((s = cmd_current_session(cmdq, 0)) == NULL)
1.57 nicm 1305: return (NULL);
1306:
1.61 nicm 1307: if (cwd == NULL)
1308: cwd = options_get_string(&s->options, "default-path");
1309:
1310: skip = 1;
1311: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1312: /* User's home directory - $HOME. */
1313: skip = 5;
1314: goto find_home;
1315: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1316: /* User's home directory - ~. */
1317: goto find_home;
1318: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1319: /* Session working directory. */
1320: root = s->cwd;
1321: goto complete_path;
1.66 nicm 1322: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1323: /* Server working directory. */
1324: if (getcwd(tmp, sizeof tmp) != NULL) {
1325: root = tmp;
1326: goto complete_path;
1.57 nicm 1327: }
1328: return (s->cwd);
1.61 nicm 1329: } else if (*cwd == '/') {
1330: /* Absolute path. */
1331: return (cwd);
1332: } else {
1333: /* Empty or relative path. */
1.80 nicm 1334: if (c != NULL && c->session == NULL && c->cwd != NULL)
1335: root = c->cwd;
1336: else if (s->curw != NULL)
1.71 nicm 1337: root = get_proc_cwd(s->curw->window->active->fd);
1.61 nicm 1338: else
1339: return (s->cwd);
1340: skip = 0;
1.62 nicm 1341: if (root != NULL)
1342: goto complete_path;
1.57 nicm 1343: }
1.61 nicm 1344:
1345: return (s->cwd);
1346:
1347: find_home:
1348: envent = environ_find(&global_environ, "HOME");
1349: if (envent != NULL && *envent->value != '\0')
1350: root = envent->value;
1351: else if ((pw = getpwuid(getuid())) != NULL)
1352: root = pw->pw_dir;
1353: else
1354: return (s->cwd);
1355:
1356: complete_path:
1.65 nicm 1357: if (root[skip] == '\0') {
1358: strlcpy(path, root, sizeof path);
1359: return (path);
1360: }
1.61 nicm 1361: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1362: if (n > 0 && (size_t)n < sizeof path)
1363: return (path);
1364: return (s->cwd);
1.1 nicm 1365: }
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