Annotation of src/usr.bin/tmux/cmd.c, Revision 1.79
1.79 ! nicm 1: /* $OpenBSD: cmd.c,v 1.78 2013/03/22 15:54:29 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,
116: NULL
117: };
118:
1.72 nicm 119: int cmd_session_better(struct session *, struct session *, int);
1.47 nicm 120: struct session *cmd_choose_session_list(struct sessionslist *);
1.52 nicm 121: struct session *cmd_choose_session(int);
1.31 nicm 122: struct client *cmd_choose_client(struct clients *);
1.5 nicm 123: struct client *cmd_lookup_client(const char *);
124: struct session *cmd_lookup_session(const char *, int *);
125: struct winlink *cmd_lookup_window(struct session *, const char *, int *);
1.8 nicm 126: int cmd_lookup_index(struct session *, const char *, int *);
1.51 nicm 127: struct window_pane *cmd_lookup_paneid(const char *);
1.60 nicm 128: struct winlink *cmd_lookup_winlink_windowid(struct session *, const char *);
129: struct window *cmd_lookup_windowid(const char *);
130: struct session *cmd_window_session(struct cmd_ctx *,
131: struct window *, struct winlink **);
1.43 nicm 132: struct winlink *cmd_find_window_offset(const char *, struct session *, int *);
133: int cmd_find_index_offset(const char *, struct session *, int *);
1.51 nicm 134: struct window_pane *cmd_find_pane_offset(const char *, struct winlink *);
1.5 nicm 135:
1.77 nicm 136: struct cmd_ctx *
1.78 nicm 137: cmd_get_ctx(struct client *cmdclient, struct client *curclient)
1.77 nicm 138: {
139: struct cmd_ctx *ctx;
140:
141: ctx = xcalloc(1, sizeof *ctx);
142: ctx->references = 0;
1.78 nicm 143:
144: ctx->cmdclient = cmdclient;
145: ctx->curclient = curclient;
1.77 nicm 146:
147: cmd_ref_ctx(ctx);
148: return (ctx);
149: }
150:
151: void
152: cmd_free_ctx(struct cmd_ctx *ctx)
153: {
154: if (ctx->cmdclient != NULL)
155: ctx->cmdclient->references--;
156: if (ctx->curclient != NULL)
157: ctx->curclient->references--;
158: if (--ctx->references == 0)
159: free(ctx);
160: }
161:
162: void
163: cmd_ref_ctx(struct cmd_ctx *ctx)
164: {
165: ctx->references++;
166: if (ctx->cmdclient != NULL)
167: ctx->cmdclient->references++;
168: if (ctx->curclient != NULL)
169: ctx->curclient->references++;
170: }
171:
1.10 nicm 172: int
173: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
174: {
175: size_t arglen;
176: int i;
177:
178: *buf = '\0';
179: for (i = 0; i < argc; i++) {
180: if (strlcpy(buf, argv[i], len) >= len)
181: return (-1);
182: arglen = strlen(argv[i]) + 1;
183: buf += arglen;
184: len -= arglen;
185: }
186:
187: return (0);
188: }
189:
190: int
191: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
192: {
193: int i;
194: size_t arglen;
195:
196: if (argc == 0)
197: return (0);
198: *argv = xcalloc(argc, sizeof **argv);
199:
200: buf[len - 1] = '\0';
201: for (i = 0; i < argc; i++) {
202: if (len == 0) {
203: cmd_free_argv(argc, *argv);
204: return (-1);
205: }
206:
207: arglen = strlen(buf) + 1;
208: (*argv)[i] = xstrdup(buf);
209: buf += arglen;
210: len -= arglen;
211: }
212:
213: return (0);
1.46 nicm 214: }
215:
216: char **
1.49 nicm 217: cmd_copy_argv(int argc, char *const *argv)
1.46 nicm 218: {
219: char **new_argv;
220: int i;
221:
222: if (argc == 0)
223: return (NULL);
224: new_argv = xcalloc(argc, sizeof *new_argv);
225: for (i = 0; i < argc; i++) {
226: if (argv[i] != NULL)
227: new_argv[i] = xstrdup(argv[i]);
228: }
229: return (new_argv);
1.10 nicm 230: }
231:
232: void
233: cmd_free_argv(int argc, char **argv)
234: {
235: int i;
236:
237: if (argc == 0)
1.35 nicm 238: return;
1.68 nicm 239: for (i = 0; i < argc; i++)
240: free(argv[i]);
241: free(argv);
1.10 nicm 242: }
243:
1.1 nicm 244: struct cmd *
245: cmd_parse(int argc, char **argv, char **cause)
246: {
247: const struct cmd_entry **entryp, *entry;
1.27 deraadt 248: struct cmd *cmd;
1.49 nicm 249: struct args *args;
1.1 nicm 250: char s[BUFSIZ];
1.49 nicm 251: int ambiguous = 0;
1.1 nicm 252:
253: *cause = NULL;
1.2 nicm 254: if (argc == 0) {
255: xasprintf(cause, "no command");
1.1 nicm 256: return (NULL);
1.2 nicm 257: }
1.1 nicm 258:
259: entry = NULL;
260: for (entryp = cmd_table; *entryp != NULL; entryp++) {
261: if ((*entryp)->alias != NULL &&
262: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 263: ambiguous = 0;
1.1 nicm 264: entry = *entryp;
265: break;
266: }
267:
268: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
269: continue;
270: if (entry != NULL)
1.3 nicm 271: ambiguous = 1;
1.1 nicm 272: entry = *entryp;
273:
274: /* Bail now if an exact match. */
275: if (strcmp(entry->name, argv[0]) == 0)
276: break;
277: }
1.3 nicm 278: if (ambiguous)
279: goto ambiguous;
1.1 nicm 280: if (entry == NULL) {
281: xasprintf(cause, "unknown command: %s", argv[0]);
282: return (NULL);
283: }
284:
1.49 nicm 285: args = args_parse(entry->args_template, argc, argv);
286: if (args == NULL)
287: goto usage;
288: if (entry->args_lower != -1 && args->argc < entry->args_lower)
289: goto usage;
290: if (entry->args_upper != -1 && args->argc > entry->args_upper)
291: goto usage;
292: if (entry->check != NULL && entry->check(args) != 0)
293: goto usage;
1.1 nicm 294:
295: cmd = xmalloc(sizeof *cmd);
296: cmd->entry = entry;
1.49 nicm 297: cmd->args = args;
1.1 nicm 298: return (cmd);
299:
300: ambiguous:
301: *s = '\0';
302: for (entryp = cmd_table; *entryp != NULL; entryp++) {
303: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
304: continue;
305: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
306: break;
307: if (strlcat(s, ", ", sizeof s) >= sizeof s)
308: break;
309: }
310: s[strlen(s) - 2] = '\0';
311: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
312: return (NULL);
313:
314: usage:
1.49 nicm 315: if (args != NULL)
316: args_free(args);
1.1 nicm 317: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
318: return (NULL);
319: }
320:
321: size_t
322: cmd_print(struct cmd *cmd, char *buf, size_t len)
323: {
1.49 nicm 324: size_t off, used;
325:
326: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
327: if (off < len) {
328: used = args_print(cmd->args, buf + off, len - off);
329: if (used == 0)
1.64 nicm 330: off--;
331: else
1.49 nicm 332: off += used;
1.64 nicm 333: buf[off] = '\0';
1.49 nicm 334: }
335: return (off);
1.1 nicm 336: }
337:
1.5 nicm 338: /*
339: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 340: * context has one; 2) the most recently used session containing the pty of the
341: * calling client, if any; 3) the session specified in the TMUX variable from
342: * the environment (as passed from the client); 4) the most recently used
343: * session from all sessions.
1.5 nicm 344: */
1.1 nicm 345: struct session *
1.52 nicm 346: cmd_current_session(struct cmd_ctx *ctx, int prefer_unattached)
1.1 nicm 347: {
348: struct msg_command_data *data = ctx->msgdata;
1.11 nicm 349: struct client *c = ctx->cmdclient;
1.5 nicm 350: struct session *s;
1.47 nicm 351: struct sessionslist ss;
1.11 nicm 352: struct winlink *wl;
353: struct window_pane *wp;
354: int found;
1.1 nicm 355:
1.14 nicm 356: if (ctx->curclient != NULL && ctx->curclient->session != NULL)
357: return (ctx->curclient->session);
1.1 nicm 358:
1.11 nicm 359: /*
360: * If the name of the calling client's pty is know, build a list of the
361: * sessions that contain it and if any choose either the first or the
362: * newest.
363: */
364: if (c != NULL && c->tty.path != NULL) {
365: ARRAY_INIT(&ss);
1.47 nicm 366: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 367: found = 0;
368: RB_FOREACH(wl, winlinks, &s->windows) {
369: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
370: if (strcmp(wp->tty, c->tty.path) == 0) {
371: found = 1;
372: break;
373: }
374: }
375: if (found)
376: break;
377: }
378: if (found)
379: ARRAY_ADD(&ss, s);
380: }
381:
1.47 nicm 382: s = cmd_choose_session_list(&ss);
1.11 nicm 383: ARRAY_FREE(&ss);
384: if (s != NULL)
385: return (s);
386: }
387:
388: /* Use the session from the TMUX environment variable. */
1.50 nicm 389: if (data != NULL && data->pid == getpid() && data->idx != -1) {
1.47 nicm 390: s = session_find_by_index(data->idx);
391: if (s != NULL)
392: return (s);
393: }
394:
1.52 nicm 395: return (cmd_choose_session(prefer_unattached));
1.47 nicm 396: }
397:
1.72 nicm 398: /* Is this session better? */
399: int
400: cmd_session_better(struct session *s, struct session *best,
401: int prefer_unattached)
402: {
403: if (best == NULL)
1.74 nicm 404: return (1);
1.72 nicm 405: if (prefer_unattached) {
406: if (!(best->flags & SESSION_UNATTACHED) &&
407: (s->flags & SESSION_UNATTACHED))
1.74 nicm 408: return (1);
1.72 nicm 409: else if ((best->flags & SESSION_UNATTACHED) &&
410: !(s->flags & SESSION_UNATTACHED))
1.74 nicm 411: return (0);
1.72 nicm 412: }
413: return (timercmp(&s->activity_time, &best->activity_time, >));
414: }
415:
1.52 nicm 416: /*
417: * Find the most recently used session, preferring unattached if the flag is
418: * set.
419: */
1.47 nicm 420: struct session *
1.52 nicm 421: cmd_choose_session(int prefer_unattached)
1.47 nicm 422: {
1.72 nicm 423: struct session *s, *best;
1.47 nicm 424:
1.72 nicm 425: best = NULL;
1.47 nicm 426: RB_FOREACH(s, sessions, &sessions) {
1.72 nicm 427: if (cmd_session_better(s, best, prefer_unattached))
428: best = s;
1.47 nicm 429: }
1.72 nicm 430: return (best);
1.5 nicm 431: }
432:
1.31 nicm 433: /* Find the most recently used session from a list. */
1.5 nicm 434: struct session *
1.47 nicm 435: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 436: {
1.31 nicm 437: struct session *s, *sbest;
1.5 nicm 438: struct timeval *tv = NULL;
439: u_int i;
440:
1.31 nicm 441: sbest = NULL;
1.11 nicm 442: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
443: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 444: continue;
445:
1.31 nicm 446: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
447: sbest = s;
448: tv = &s->activity_time;
1.1 nicm 449: }
450: }
1.5 nicm 451:
1.31 nicm 452: return (sbest);
1.1 nicm 453: }
454:
1.30 nicm 455: /*
456: * Find the current client. First try the current client if set, then pick the
1.31 nicm 457: * most recently used of the clients attached to the current session if any,
458: * then of all clients.
1.30 nicm 459: */
460: struct client *
461: cmd_current_client(struct cmd_ctx *ctx)
462: {
463: struct session *s;
464: struct client *c;
465: struct clients cc;
466: u_int i;
467:
468: if (ctx->curclient != NULL)
469: return (ctx->curclient);
470:
471: /*
472: * No current client set. Find the current session and return the
473: * newest of its clients.
474: */
1.52 nicm 475: s = cmd_current_session(ctx, 0);
1.30 nicm 476: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
477: ARRAY_INIT(&cc);
478: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
479: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
480: continue;
481: if (s == c->session)
482: ARRAY_ADD(&cc, c);
483: }
484:
1.31 nicm 485: c = cmd_choose_client(&cc);
1.30 nicm 486: ARRAY_FREE(&cc);
487: if (c != NULL)
488: return (c);
489: }
490:
1.31 nicm 491: return (cmd_choose_client(&clients));
1.30 nicm 492: }
493:
1.31 nicm 494: /* Choose the most recently used client from a list. */
1.20 nicm 495: struct client *
1.31 nicm 496: cmd_choose_client(struct clients *cc)
1.20 nicm 497: {
1.31 nicm 498: struct client *c, *cbest;
1.20 nicm 499: struct timeval *tv = NULL;
500: u_int i;
501:
1.31 nicm 502: cbest = NULL;
1.30 nicm 503: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
504: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 505: continue;
506: if (c->session == NULL)
507: continue;
508:
1.31 nicm 509: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
510: cbest = c;
511: tv = &c->activity_time;
1.20 nicm 512: }
513: }
514:
1.31 nicm 515: return (cbest);
1.20 nicm 516: }
517:
1.5 nicm 518: /* Find the target client or report an error and return NULL. */
1.1 nicm 519: struct client *
1.79 ! nicm 520: cmd_find_client(struct cmd_ctx *ctx, const char *arg, int quiet)
1.1 nicm 521: {
1.30 nicm 522: struct client *c;
1.5 nicm 523: char *tmparg;
524: size_t arglen;
1.1 nicm 525:
1.5 nicm 526: /* A NULL argument means the current client. */
1.79 ! nicm 527: if (arg == NULL) {
! 528: c = cmd_current_client(ctx);
! 529: if (c == NULL && !quiet)
! 530: ctx->error(ctx, "no clients");
! 531: return (c);
! 532: }
1.5 nicm 533: tmparg = xstrdup(arg);
534:
535: /* Trim a single trailing colon if any. */
536: arglen = strlen(tmparg);
537: if (arglen != 0 && tmparg[arglen - 1] == ':')
538: tmparg[arglen - 1] = '\0';
539:
540: /* Find the client, if any. */
541: c = cmd_lookup_client(tmparg);
542:
543: /* If no client found, report an error. */
1.79 ! nicm 544: if (c == NULL && !quiet)
1.5 nicm 545: ctx->error(ctx, "client not found: %s", tmparg);
546:
1.68 nicm 547: free(tmparg);
1.5 nicm 548: return (c);
549: }
550:
551: /*
552: * Lookup a client by device path. Either of a full match and a match without a
553: * leading _PATH_DEV ("/dev/") is accepted.
554: */
555: struct client *
556: cmd_lookup_client(const char *name)
557: {
558: struct client *c;
559: const char *path;
560: u_int i;
561:
562: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 563: c = ARRAY_ITEM(&clients, i);
564: if (c == NULL || c->session == NULL)
1.5 nicm 565: continue;
566: path = c->tty.path;
567:
568: /* Check for exact matches. */
569: if (strcmp(name, path) == 0)
570: return (c);
571:
572: /* Check without leading /dev if present. */
573: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
574: continue;
575: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
576: return (c);
577: }
578:
579: return (NULL);
580: }
581:
582: /* Lookup a session by name. If no session is found, NULL is returned. */
583: struct session *
584: cmd_lookup_session(const char *name, int *ambiguous)
585: {
586: struct session *s, *sfound;
587:
588: *ambiguous = 0;
589:
590: /*
1.28 nicm 591: * Look for matches. First look for exact matches - session names must
592: * be unique so an exact match can't be ambigious and can just be
593: * returned.
1.5 nicm 594: */
1.47 nicm 595: if ((s = session_find(name)) != NULL)
596: return (s);
1.28 nicm 597:
598: /*
599: * Otherwise look for partial matches, returning early if it is found to
600: * be ambiguous.
601: */
602: sfound = NULL;
1.47 nicm 603: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 604: if (strncmp(name, s->name, strlen(name)) == 0 ||
605: fnmatch(name, s->name, 0) == 0) {
606: if (sfound != NULL) {
607: *ambiguous = 1;
608: return (NULL);
609: }
610: sfound = s;
611: }
612: }
1.35 nicm 613: return (sfound);
1.5 nicm 614: }
615:
616: /*
1.8 nicm 617: * Lookup a window or return -1 if not found or ambigious. First try as an
618: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 619: * idx if the window index is a valid number but there is no window with that
1.8 nicm 620: * index.
1.5 nicm 621: */
622: struct winlink *
623: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
624: {
625: struct winlink *wl, *wlfound;
626: const char *errstr;
627: u_int idx;
628:
629: *ambiguous = 0;
630:
1.60 nicm 631: /* Try as a window id. */
632: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
633: return (wl);
634:
1.5 nicm 635: /* First see if this is a valid window index in this session. */
636: idx = strtonum(name, 0, INT_MAX, &errstr);
637: if (errstr == NULL) {
638: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
639: return (wl);
640: }
1.35 nicm 641:
1.5 nicm 642: /* Look for exact matches, error if more than one. */
643: wlfound = NULL;
644: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 645: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 646: if (wlfound != NULL) {
647: *ambiguous = 1;
648: return (NULL);
649: }
650: wlfound = wl;
1.1 nicm 651: }
652: }
1.5 nicm 653: if (wlfound != NULL)
654: return (wlfound);
655:
656: /* Now look for pattern matches, again error if multiple. */
657: wlfound = NULL;
658: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 659: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
660: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 661: if (wlfound != NULL) {
662: *ambiguous = 1;
663: return (NULL);
664: }
665: wlfound = wl;
666: }
1.35 nicm 667: }
1.5 nicm 668: if (wlfound != NULL)
669: return (wlfound);
670:
671: return (NULL);
1.1 nicm 672: }
673:
1.8 nicm 674: /*
675: * Find a window index - if the window doesn't exist, check if it is a
676: * potential index and return it anyway.
677: */
678: int
679: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
680: {
681: struct winlink *wl;
682: const char *errstr;
683: u_int idx;
684:
685: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
686: return (wl->idx);
687: if (*ambiguous)
688: return (-1);
689:
690: idx = strtonum(name, 0, INT_MAX, &errstr);
691: if (errstr == NULL)
692: return (idx);
693:
694: return (-1);
695: }
696:
1.60 nicm 697: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 698: struct window_pane *
699: cmd_lookup_paneid(const char *arg)
700: {
701: const char *errstr;
702: u_int paneid;
703:
704: if (*arg != '%')
705: return (NULL);
706:
707: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
708: if (errstr != NULL)
709: return (NULL);
710: return (window_pane_find_by_id(paneid));
711: }
712:
1.60 nicm 713: /* Lookup window id in a session. An initial @ means a window id. */
714: struct winlink *
715: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
716: {
717: const char *errstr;
718: u_int windowid;
719:
720: if (*arg != '@')
721: return (NULL);
722:
723: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
724: if (errstr != NULL)
725: return (NULL);
726: return (winlink_find_by_window_id(&s->windows, windowid));
727: }
728:
729: /* Lookup window id. An initial @ means a window id. */
730: struct window *
731: cmd_lookup_windowid(const char *arg)
732: {
733: const char *errstr;
734: u_int windowid;
735:
736: if (*arg != '@')
737: return (NULL);
738:
739: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
740: if (errstr != NULL)
741: return (NULL);
742: return (window_find_by_id(windowid));
743: }
744:
745: /* Find session and winlink for window. */
1.51 nicm 746: struct session *
1.60 nicm 747: cmd_window_session(struct cmd_ctx *ctx, struct window *w, struct winlink **wlp)
1.51 nicm 748: {
749: struct session *s;
750: struct sessionslist ss;
751: struct winlink *wl;
752:
1.60 nicm 753: /* If this window is in the current session, return that winlink. */
1.52 nicm 754: s = cmd_current_session(ctx, 0);
1.51 nicm 755: if (s != NULL) {
1.60 nicm 756: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 757: if (wl != NULL) {
758: if (wlp != NULL)
759: *wlp = wl;
760: return (s);
761: }
762: }
763:
1.60 nicm 764: /* Otherwise choose from all sessions with this window. */
1.51 nicm 765: ARRAY_INIT(&ss);
766: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 767: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 768: ARRAY_ADD(&ss, s);
769: }
770: s = cmd_choose_session_list(&ss);
771: ARRAY_FREE(&ss);
772: if (wlp != NULL)
1.60 nicm 773: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 774: return (s);
775: }
776:
1.5 nicm 777: /* Find the target session or report an error and return NULL. */
1.1 nicm 778: struct session *
1.52 nicm 779: cmd_find_session(struct cmd_ctx *ctx, const char *arg, int prefer_unattached)
1.1 nicm 780: {
1.51 nicm 781: struct session *s;
782: struct window_pane *wp;
1.60 nicm 783: struct window *w;
1.51 nicm 784: struct client *c;
785: char *tmparg;
786: size_t arglen;
787: int ambiguous;
1.1 nicm 788:
1.5 nicm 789: /* A NULL argument means the current session. */
1.1 nicm 790: if (arg == NULL)
1.52 nicm 791: return (cmd_current_session(ctx, prefer_unattached));
1.5 nicm 792:
1.60 nicm 793: /* Lookup as pane id or window id. */
1.51 nicm 794: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.60 nicm 795: return (cmd_window_session(ctx, wp->window, NULL));
796: if ((w = cmd_lookup_windowid(arg)) != NULL)
797: return (cmd_window_session(ctx, w, NULL));
1.51 nicm 798:
1.5 nicm 799: /* Trim a single trailing colon if any. */
1.54 nicm 800: tmparg = xstrdup(arg);
1.5 nicm 801: arglen = strlen(tmparg);
802: if (arglen != 0 && tmparg[arglen - 1] == ':')
803: tmparg[arglen - 1] = '\0';
804:
1.53 nicm 805: /* An empty session name is the current session. */
806: if (*tmparg == '\0') {
1.68 nicm 807: free(tmparg);
1.53 nicm 808: return (cmd_current_session(ctx, prefer_unattached));
809: }
810:
1.5 nicm 811: /* Find the session, if any. */
812: s = cmd_lookup_session(tmparg, &ambiguous);
813:
814: /* If it doesn't, try to match it as a client. */
815: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
816: s = c->session;
817:
818: /* If no session found, report an error. */
819: if (s == NULL) {
820: if (ambiguous)
821: ctx->error(ctx, "more than one session: %s", tmparg);
822: else
823: ctx->error(ctx, "session not found: %s", tmparg);
1.1 nicm 824: }
1.5 nicm 825:
1.68 nicm 826: free(tmparg);
1.1 nicm 827: return (s);
828: }
829:
1.5 nicm 830: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 831: struct winlink *
832: cmd_find_window(struct cmd_ctx *ctx, const char *arg, struct session **sp)
833: {
1.51 nicm 834: struct session *s;
835: struct winlink *wl;
836: struct window_pane *wp;
837: const char *winptr;
838: char *sessptr = NULL;
839: int ambiguous = 0;
1.5 nicm 840:
841: /*
842: * Find the current session. There must always be a current session, if
843: * it can't be found, report an error.
844: */
1.52 nicm 845: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 846: ctx->error(ctx, "can't establish current session");
847: return (NULL);
848: }
849:
850: /* A NULL argument means the current session and window. */
851: if (arg == NULL) {
852: if (sp != NULL)
853: *sp = s;
854: return (s->curw);
855: }
856:
1.51 nicm 857: /* Lookup as pane id. */
858: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 859: s = cmd_window_session(ctx, wp->window, &wl);
1.51 nicm 860: if (sp != NULL)
861: *sp = s;
862: return (wl);
863: }
864:
1.5 nicm 865: /* Time to look at the argument. If it is empty, that is an error. */
866: if (*arg == '\0')
867: goto not_found;
868:
1.8 nicm 869: /* Find the separating colon and split into window and session. */
1.5 nicm 870: winptr = strchr(arg, ':');
871: if (winptr == NULL)
1.8 nicm 872: goto no_colon;
873: winptr++; /* skip : */
874: sessptr = xstrdup(arg);
875: *strchr(sessptr, ':') = '\0';
1.5 nicm 876:
877: /* Try to lookup the session if present. */
1.8 nicm 878: if (*sessptr != '\0') {
879: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 880: goto no_session;
881: }
882: if (sp != NULL)
883: *sp = s;
884:
885: /*
886: * Then work out the window. An empty string is the current window,
1.38 nicm 887: * otherwise try special cases then to look it up in the session.
1.5 nicm 888: */
1.8 nicm 889: if (*winptr == '\0')
1.5 nicm 890: wl = s->curw;
1.38 nicm 891: else if (winptr[0] == '!' && winptr[1] == '\0')
892: wl = TAILQ_FIRST(&s->lastw);
1.73 nicm 893: else if (winptr[0] == '^' && winptr[1] == '\0')
894: wl = RB_MIN(winlinks, &s->windows);
895: else if (winptr[0] == '$' && winptr[1] == '\0')
896: wl = RB_MAX(winlinks, &s->windows);
1.43 nicm 897: else if (winptr[0] == '+' || winptr[0] == '-')
898: wl = cmd_find_window_offset(winptr, s, &ambiguous);
899: else
1.38 nicm 900: wl = cmd_lookup_window(s, winptr, &ambiguous);
901: if (wl == NULL)
1.5 nicm 902: goto not_found;
1.35 nicm 903:
1.5 nicm 904: if (sessptr != NULL)
1.68 nicm 905: free(sessptr);
1.5 nicm 906: return (wl);
907:
1.8 nicm 908: no_colon:
1.38 nicm 909: /*
910: * No colon in the string, first try special cases, then as a window
911: * and lastly as a session.
912: */
913: if (arg[0] == '!' && arg[1] == '\0') {
914: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
915: goto not_found;
1.41 nicm 916: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 917: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 918: goto lookup_session;
919: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
920: goto lookup_session;
1.8 nicm 921:
922: if (sp != NULL)
923: *sp = s;
924:
925: return (wl);
926:
1.41 nicm 927: lookup_session:
928: if (ambiguous)
929: goto not_found;
1.53 nicm 930: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 931: goto no_session;
932:
933: if (sp != NULL)
934: *sp = s;
935:
936: return (s->curw);
937:
1.5 nicm 938: no_session:
939: if (ambiguous)
1.8 nicm 940: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 941: else
1.8 nicm 942: ctx->error(ctx, "session not found: %s", arg);
1.68 nicm 943: free(sessptr);
1.5 nicm 944: return (NULL);
945:
946: not_found:
947: if (ambiguous)
948: ctx->error(ctx, "multiple windows: %s", arg);
949: else
950: ctx->error(ctx, "window not found: %s", arg);
1.68 nicm 951: free(sessptr);
1.5 nicm 952: return (NULL);
953: }
1.1 nicm 954:
1.43 nicm 955: struct winlink *
956: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
957: {
958: struct winlink *wl;
959: int offset = 1;
960:
961: if (winptr[1] != '\0')
962: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
963: if (offset == 0)
964: wl = cmd_lookup_window(s, winptr, ambiguous);
965: else {
966: if (winptr[0] == '+')
967: wl = winlink_next_by_number(s->curw, s, offset);
968: else
969: wl = winlink_previous_by_number(s->curw, s, offset);
970: }
971:
972: return (wl);
973: }
974:
1.5 nicm 975: /*
976: * Find the target session and window index, whether or not it exists in the
977: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 978: * used when parsing an argument for a window target that may not exist (for
979: * example if it is going to be created).
1.5 nicm 980: */
981: int
982: cmd_find_index(struct cmd_ctx *ctx, const char *arg, struct session **sp)
983: {
984: struct session *s;
1.38 nicm 985: struct winlink *wl;
1.8 nicm 986: const char *winptr;
1.5 nicm 987: char *sessptr = NULL;
988: int idx, ambiguous = 0;
989:
990: /*
991: * Find the current session. There must always be a current session, if
992: * it can't be found, report an error.
993: */
1.52 nicm 994: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 995: ctx->error(ctx, "can't establish current session");
1.9 nicm 996: return (-2);
1.1 nicm 997: }
1.5 nicm 998:
999: /* A NULL argument means the current session and "no window" (-1). */
1000: if (arg == NULL) {
1001: if (sp != NULL)
1002: *sp = s;
1003: return (-1);
1004: }
1005:
1006: /* Time to look at the argument. If it is empty, that is an error. */
1007: if (*arg == '\0')
1008: goto not_found;
1009:
1010: /* Find the separating colon. If none, assume the current session. */
1011: winptr = strchr(arg, ':');
1012: if (winptr == NULL)
1.8 nicm 1013: goto no_colon;
1014: winptr++; /* skip : */
1015: sessptr = xstrdup(arg);
1016: *strchr(sessptr, ':') = '\0';
1.5 nicm 1017:
1018: /* Try to lookup the session if present. */
1019: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 1020: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 1021: goto no_session;
1022: }
1.1 nicm 1023: if (sp != NULL)
1024: *sp = s;
1025:
1.5 nicm 1026: /*
1.8 nicm 1027: * Then work out the window. An empty string is a new window otherwise
1028: * try to look it up in the session.
1.5 nicm 1029: */
1.8 nicm 1030: if (*winptr == '\0')
1.38 nicm 1031: idx = -1;
1032: else if (winptr[0] == '!' && winptr[1] == '\0') {
1033: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1034: goto not_found;
1035: idx = wl->idx;
1.41 nicm 1036: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 1037: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 1038: goto invalid_index;
1039: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1040: goto invalid_index;
1.35 nicm 1041:
1.68 nicm 1042: free(sessptr);
1.5 nicm 1043: return (idx);
1044:
1.8 nicm 1045: no_colon:
1.38 nicm 1046: /*
1047: * No colon in the string, first try special cases, then as a window
1048: * and lastly as a session.
1049: */
1050: if (arg[0] == '!' && arg[1] == '\0') {
1051: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1052: goto not_found;
1053: idx = wl->idx;
1.41 nicm 1054: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1055: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1056: goto lookup_session;
1057: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1058: goto lookup_session;
1.8 nicm 1059:
1060: if (sp != NULL)
1061: *sp = s;
1062:
1063: return (idx);
1064:
1.41 nicm 1065: lookup_session:
1066: if (ambiguous)
1067: goto not_found;
1.53 nicm 1068: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1069: goto no_session;
1070:
1071: if (sp != NULL)
1072: *sp = s;
1073:
1074: return (-1);
1075:
1.5 nicm 1076: no_session:
1077: if (ambiguous)
1.35 nicm 1078: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 1079: else
1.8 nicm 1080: ctx->error(ctx, "session not found: %s", arg);
1.68 nicm 1081: free(sessptr);
1.5 nicm 1082: return (-2);
1083:
1.41 nicm 1084: invalid_index:
1085: if (ambiguous)
1086: goto not_found;
1087: ctx->error(ctx, "invalid index: %s", arg);
1088:
1.68 nicm 1089: free(sessptr);
1.41 nicm 1090: return (-2);
1091:
1.5 nicm 1092: not_found:
1093: if (ambiguous)
1094: ctx->error(ctx, "multiple windows: %s", arg);
1.1 nicm 1095: else
1.5 nicm 1096: ctx->error(ctx, "window not found: %s", arg);
1.68 nicm 1097: free(sessptr);
1.5 nicm 1098: return (-2);
1.12 nicm 1099: }
1100:
1.43 nicm 1101: int
1102: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1103: {
1104: int idx, offset = 1;
1105:
1106: if (winptr[1] != '\0')
1107: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1108: if (offset == 0)
1109: idx = cmd_lookup_index(s, winptr, ambiguous);
1110: else {
1111: if (winptr[0] == '+') {
1112: if (s->curw->idx == INT_MAX)
1113: idx = cmd_lookup_index(s, winptr, ambiguous);
1114: else
1115: idx = s->curw->idx + offset;
1116: } else {
1117: if (s->curw->idx == 0)
1118: idx = cmd_lookup_index(s, winptr, ambiguous);
1119: else
1120: idx = s->curw->idx - offset;
1121: }
1122: }
1123:
1124: return (idx);
1125: }
1126:
1.12 nicm 1127: /*
1128: * Find the target session, window and pane number or report an error and
1129: * return NULL. The pane number is separated from the session:window by a .,
1130: * such as mysession:mywindow.0.
1131: */
1132: struct winlink *
1133: cmd_find_pane(struct cmd_ctx *ctx,
1134: const char *arg, struct session **sp, struct window_pane **wpp)
1135: {
1.55 nicm 1136: struct session *s;
1137: struct winlink *wl;
1138: const char *period, *errstr;
1139: char *winptr, *paneptr;
1140: u_int idx;
1.12 nicm 1141:
1142: /* Get the current session. */
1.52 nicm 1143: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.27 deraadt 1144: ctx->error(ctx, "can't establish current session");
1.12 nicm 1145: return (NULL);
1146: }
1147: if (sp != NULL)
1148: *sp = s;
1149:
1150: /* A NULL argument means the current session, window and pane. */
1151: if (arg == NULL) {
1152: *wpp = s->curw->window->active;
1153: return (s->curw);
1.51 nicm 1154: }
1155:
1156: /* Lookup as pane id. */
1157: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 1158: s = cmd_window_session(ctx, (*wpp)->window, &wl);
1.51 nicm 1159: if (sp != NULL)
1160: *sp = s;
1161: return (wl);
1.12 nicm 1162: }
1163:
1164: /* Look for a separating period. */
1165: if ((period = strrchr(arg, '.')) == NULL)
1166: goto no_period;
1167:
1168: /* Pull out the window part and parse it. */
1169: winptr = xstrdup(arg);
1170: winptr[period - arg] = '\0';
1171: if (*winptr == '\0')
1172: wl = s->curw;
1173: else if ((wl = cmd_find_window(ctx, winptr, sp)) == NULL)
1174: goto error;
1175:
1176: /* Find the pane section and look it up. */
1177: paneptr = winptr + (period - arg) + 1;
1178: if (*paneptr == '\0')
1179: *wpp = wl->window->active;
1.43 nicm 1180: else if (paneptr[0] == '+' || paneptr[0] == '-')
1181: *wpp = cmd_find_pane_offset(paneptr, wl);
1182: else {
1.12 nicm 1183: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1184: if (errstr != NULL)
1185: goto lookup_string;
1.12 nicm 1186: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1187: if (*wpp == NULL)
1188: goto lookup_string;
1.12 nicm 1189: }
1190:
1.68 nicm 1191: free(winptr);
1.12 nicm 1192: return (wl);
1193:
1.36 nicm 1194: lookup_string:
1195: /* Try pane string description. */
1.55 nicm 1196: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.36 nicm 1197: ctx->error(ctx, "can't find pane: %s", paneptr);
1198: goto error;
1199: }
1200:
1.68 nicm 1201: free(winptr);
1.39 nicm 1202: return (wl);
1.36 nicm 1203:
1.12 nicm 1204: no_period:
1205: /* Try as a pane number alone. */
1206: idx = strtonum(arg, 0, INT_MAX, &errstr);
1207: if (errstr != NULL)
1208: goto lookup_window;
1209:
1210: /* Try index in the current session and window. */
1211: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1212: goto lookup_window;
1.35 nicm 1213:
1.12 nicm 1214: return (s->curw);
1215:
1216: lookup_window:
1.36 nicm 1217: /* Try pane string description. */
1.55 nicm 1218: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1219: return (s->curw);
1220:
1.12 nicm 1221: /* Try as a window and use the active pane. */
1222: if ((wl = cmd_find_window(ctx, arg, sp)) != NULL)
1223: *wpp = wl->window->active;
1224: return (wl);
1.35 nicm 1225:
1.12 nicm 1226: error:
1.68 nicm 1227: free(winptr);
1.12 nicm 1228: return (NULL);
1.43 nicm 1229: }
1230:
1231: struct window_pane *
1232: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1233: {
1234: struct window *w = wl->window;
1235: struct window_pane *wp = w->active;
1236: u_int offset = 1;
1237:
1238: if (paneptr[1] != '\0')
1239: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1240: if (offset > 0) {
1241: if (paneptr[0] == '+')
1242: wp = window_pane_next_by_number(w, wp, offset);
1243: else
1244: wp = window_pane_previous_by_number(w, wp, offset);
1245: }
1246:
1247: return (wp);
1.15 nicm 1248: }
1249:
1250: /* Replace the first %% or %idx in template by s. */
1251: char *
1.75 nicm 1252: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 1253: {
1.75 nicm 1254: char ch, *buf;
1255: const char *ptr;
1256: int replaced;
1257: size_t len;
1.15 nicm 1258:
1.76 nicm 1259: if (strchr(template, '%') == NULL)
1.15 nicm 1260: return (xstrdup(template));
1261:
1262: buf = xmalloc(1);
1263: *buf = '\0';
1264: len = 0;
1265: replaced = 0;
1266:
1267: ptr = template;
1268: while (*ptr != '\0') {
1269: switch (ch = *ptr++) {
1270: case '%':
1271: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1272: if (*ptr != '%' || replaced)
1273: break;
1274: replaced = 1;
1275: }
1276: ptr++;
1277:
1278: len += strlen(s);
1279: buf = xrealloc(buf, 1, len + 1);
1280: strlcat(buf, s, len + 1);
1281: continue;
1282: }
1283: buf = xrealloc(buf, 1, len + 2);
1284: buf[len++] = ch;
1285: buf[len] = '\0';
1286: }
1287:
1288: return (buf);
1.57 nicm 1289: }
1290:
1.61 nicm 1291: /*
1292: * Return the default path for a new pane, using the given path or the
1293: * default-path option if it is NULL. Several special values are accepted: the
1294: * empty string or relative path for the current pane's working directory, ~
1295: * for the user's home, - for the session working directory, . for the tmux
1296: * server's working directory. The default on failure is the session's working
1297: * directory.
1298: */
1.59 nicm 1299: const char *
1.61 nicm 1300: cmd_get_default_path(struct cmd_ctx *ctx, const char *cwd)
1.57 nicm 1301: {
1302: struct session *s;
1.58 stsp 1303: struct environ_entry *envent;
1.61 nicm 1304: const char *root;
1305: char tmp[MAXPATHLEN];
1306: struct passwd *pw;
1307: int n;
1308: size_t skip;
1309: static char path[MAXPATHLEN];
1.57 nicm 1310:
1311: if ((s = cmd_current_session(ctx, 0)) == NULL)
1312: return (NULL);
1313:
1.61 nicm 1314: if (cwd == NULL)
1315: cwd = options_get_string(&s->options, "default-path");
1316:
1317: skip = 1;
1318: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1319: /* User's home directory - $HOME. */
1320: skip = 5;
1321: goto find_home;
1322: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1323: /* User's home directory - ~. */
1324: goto find_home;
1325: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1326: /* Session working directory. */
1327: root = s->cwd;
1328: goto complete_path;
1.66 nicm 1329: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1330: /* Server working directory. */
1331: if (getcwd(tmp, sizeof tmp) != NULL) {
1332: root = tmp;
1333: goto complete_path;
1.57 nicm 1334: }
1335: return (s->cwd);
1.61 nicm 1336: } else if (*cwd == '/') {
1337: /* Absolute path. */
1338: return (cwd);
1339: } else {
1340: /* Empty or relative path. */
1341: if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
1342: root = ctx->cmdclient->cwd;
1.66 nicm 1343: else if (ctx->curclient != NULL && s->curw != NULL)
1.71 nicm 1344: root = get_proc_cwd(s->curw->window->active->fd);
1.61 nicm 1345: else
1346: return (s->cwd);
1347: skip = 0;
1.62 nicm 1348: if (root != NULL)
1349: goto complete_path;
1.57 nicm 1350: }
1.61 nicm 1351:
1352: return (s->cwd);
1353:
1354: find_home:
1355: envent = environ_find(&global_environ, "HOME");
1356: if (envent != NULL && *envent->value != '\0')
1357: root = envent->value;
1358: else if ((pw = getpwuid(getuid())) != NULL)
1359: root = pw->pw_dir;
1360: else
1361: return (s->cwd);
1362:
1363: complete_path:
1.65 nicm 1364: if (root[skip] == '\0') {
1365: strlcpy(path, root, sizeof path);
1366: return (path);
1367: }
1.61 nicm 1368: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1369: if (n > 0 && (size_t)n < sizeof path)
1370: return (path);
1371: return (s->cwd);
1.1 nicm 1372: }
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