Annotation of src/usr.bin/tmux/cmd.c, Revision 1.78
1.78 ! nicm 1: /* $OpenBSD: cmd.c,v 1.77 2013/03/22 15:49:55 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 *
520: cmd_find_client(struct cmd_ctx *ctx, const char *arg)
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. */
1.30 nicm 527: if (arg == NULL)
528: return (cmd_current_client(ctx));
1.5 nicm 529: tmparg = xstrdup(arg);
530:
531: /* Trim a single trailing colon if any. */
532: arglen = strlen(tmparg);
533: if (arglen != 0 && tmparg[arglen - 1] == ':')
534: tmparg[arglen - 1] = '\0';
535:
536: /* Find the client, if any. */
537: c = cmd_lookup_client(tmparg);
538:
539: /* If no client found, report an error. */
540: if (c == NULL)
541: ctx->error(ctx, "client not found: %s", tmparg);
542:
1.68 nicm 543: free(tmparg);
1.5 nicm 544: return (c);
545: }
546:
547: /*
548: * Lookup a client by device path. Either of a full match and a match without a
549: * leading _PATH_DEV ("/dev/") is accepted.
550: */
551: struct client *
552: cmd_lookup_client(const char *name)
553: {
554: struct client *c;
555: const char *path;
556: u_int i;
557:
558: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 559: c = ARRAY_ITEM(&clients, i);
560: if (c == NULL || c->session == NULL)
1.5 nicm 561: continue;
562: path = c->tty.path;
563:
564: /* Check for exact matches. */
565: if (strcmp(name, path) == 0)
566: return (c);
567:
568: /* Check without leading /dev if present. */
569: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
570: continue;
571: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
572: return (c);
573: }
574:
575: return (NULL);
576: }
577:
578: /* Lookup a session by name. If no session is found, NULL is returned. */
579: struct session *
580: cmd_lookup_session(const char *name, int *ambiguous)
581: {
582: struct session *s, *sfound;
583:
584: *ambiguous = 0;
585:
586: /*
1.28 nicm 587: * Look for matches. First look for exact matches - session names must
588: * be unique so an exact match can't be ambigious and can just be
589: * returned.
1.5 nicm 590: */
1.47 nicm 591: if ((s = session_find(name)) != NULL)
592: return (s);
1.28 nicm 593:
594: /*
595: * Otherwise look for partial matches, returning early if it is found to
596: * be ambiguous.
597: */
598: sfound = NULL;
1.47 nicm 599: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 600: if (strncmp(name, s->name, strlen(name)) == 0 ||
601: fnmatch(name, s->name, 0) == 0) {
602: if (sfound != NULL) {
603: *ambiguous = 1;
604: return (NULL);
605: }
606: sfound = s;
607: }
608: }
1.35 nicm 609: return (sfound);
1.5 nicm 610: }
611:
612: /*
1.8 nicm 613: * Lookup a window or return -1 if not found or ambigious. First try as an
614: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 615: * idx if the window index is a valid number but there is no window with that
1.8 nicm 616: * index.
1.5 nicm 617: */
618: struct winlink *
619: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
620: {
621: struct winlink *wl, *wlfound;
622: const char *errstr;
623: u_int idx;
624:
625: *ambiguous = 0;
626:
1.60 nicm 627: /* Try as a window id. */
628: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
629: return (wl);
630:
1.5 nicm 631: /* First see if this is a valid window index in this session. */
632: idx = strtonum(name, 0, INT_MAX, &errstr);
633: if (errstr == NULL) {
634: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
635: return (wl);
636: }
1.35 nicm 637:
1.5 nicm 638: /* Look for exact matches, error if more than one. */
639: wlfound = NULL;
640: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 641: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 642: if (wlfound != NULL) {
643: *ambiguous = 1;
644: return (NULL);
645: }
646: wlfound = wl;
1.1 nicm 647: }
648: }
1.5 nicm 649: if (wlfound != NULL)
650: return (wlfound);
651:
652: /* Now look for pattern matches, again error if multiple. */
653: wlfound = NULL;
654: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 655: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
656: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 657: if (wlfound != NULL) {
658: *ambiguous = 1;
659: return (NULL);
660: }
661: wlfound = wl;
662: }
1.35 nicm 663: }
1.5 nicm 664: if (wlfound != NULL)
665: return (wlfound);
666:
667: return (NULL);
1.1 nicm 668: }
669:
1.8 nicm 670: /*
671: * Find a window index - if the window doesn't exist, check if it is a
672: * potential index and return it anyway.
673: */
674: int
675: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
676: {
677: struct winlink *wl;
678: const char *errstr;
679: u_int idx;
680:
681: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
682: return (wl->idx);
683: if (*ambiguous)
684: return (-1);
685:
686: idx = strtonum(name, 0, INT_MAX, &errstr);
687: if (errstr == NULL)
688: return (idx);
689:
690: return (-1);
691: }
692:
1.60 nicm 693: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 694: struct window_pane *
695: cmd_lookup_paneid(const char *arg)
696: {
697: const char *errstr;
698: u_int paneid;
699:
700: if (*arg != '%')
701: return (NULL);
702:
703: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
704: if (errstr != NULL)
705: return (NULL);
706: return (window_pane_find_by_id(paneid));
707: }
708:
1.60 nicm 709: /* Lookup window id in a session. An initial @ means a window id. */
710: struct winlink *
711: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
712: {
713: const char *errstr;
714: u_int windowid;
715:
716: if (*arg != '@')
717: return (NULL);
718:
719: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
720: if (errstr != NULL)
721: return (NULL);
722: return (winlink_find_by_window_id(&s->windows, windowid));
723: }
724:
725: /* Lookup window id. An initial @ means a window id. */
726: struct window *
727: cmd_lookup_windowid(const char *arg)
728: {
729: const char *errstr;
730: u_int windowid;
731:
732: if (*arg != '@')
733: return (NULL);
734:
735: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
736: if (errstr != NULL)
737: return (NULL);
738: return (window_find_by_id(windowid));
739: }
740:
741: /* Find session and winlink for window. */
1.51 nicm 742: struct session *
1.60 nicm 743: cmd_window_session(struct cmd_ctx *ctx, struct window *w, struct winlink **wlp)
1.51 nicm 744: {
745: struct session *s;
746: struct sessionslist ss;
747: struct winlink *wl;
748:
1.60 nicm 749: /* If this window is in the current session, return that winlink. */
1.52 nicm 750: s = cmd_current_session(ctx, 0);
1.51 nicm 751: if (s != NULL) {
1.60 nicm 752: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 753: if (wl != NULL) {
754: if (wlp != NULL)
755: *wlp = wl;
756: return (s);
757: }
758: }
759:
1.60 nicm 760: /* Otherwise choose from all sessions with this window. */
1.51 nicm 761: ARRAY_INIT(&ss);
762: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 763: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 764: ARRAY_ADD(&ss, s);
765: }
766: s = cmd_choose_session_list(&ss);
767: ARRAY_FREE(&ss);
768: if (wlp != NULL)
1.60 nicm 769: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 770: return (s);
771: }
772:
1.5 nicm 773: /* Find the target session or report an error and return NULL. */
1.1 nicm 774: struct session *
1.52 nicm 775: cmd_find_session(struct cmd_ctx *ctx, const char *arg, int prefer_unattached)
1.1 nicm 776: {
1.51 nicm 777: struct session *s;
778: struct window_pane *wp;
1.60 nicm 779: struct window *w;
1.51 nicm 780: struct client *c;
781: char *tmparg;
782: size_t arglen;
783: int ambiguous;
1.1 nicm 784:
1.5 nicm 785: /* A NULL argument means the current session. */
1.1 nicm 786: if (arg == NULL)
1.52 nicm 787: return (cmd_current_session(ctx, prefer_unattached));
1.5 nicm 788:
1.60 nicm 789: /* Lookup as pane id or window id. */
1.51 nicm 790: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.60 nicm 791: return (cmd_window_session(ctx, wp->window, NULL));
792: if ((w = cmd_lookup_windowid(arg)) != NULL)
793: return (cmd_window_session(ctx, w, NULL));
1.51 nicm 794:
1.5 nicm 795: /* Trim a single trailing colon if any. */
1.54 nicm 796: tmparg = xstrdup(arg);
1.5 nicm 797: arglen = strlen(tmparg);
798: if (arglen != 0 && tmparg[arglen - 1] == ':')
799: tmparg[arglen - 1] = '\0';
800:
1.53 nicm 801: /* An empty session name is the current session. */
802: if (*tmparg == '\0') {
1.68 nicm 803: free(tmparg);
1.53 nicm 804: return (cmd_current_session(ctx, prefer_unattached));
805: }
806:
1.5 nicm 807: /* Find the session, if any. */
808: s = cmd_lookup_session(tmparg, &ambiguous);
809:
810: /* If it doesn't, try to match it as a client. */
811: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
812: s = c->session;
813:
814: /* If no session found, report an error. */
815: if (s == NULL) {
816: if (ambiguous)
817: ctx->error(ctx, "more than one session: %s", tmparg);
818: else
819: ctx->error(ctx, "session not found: %s", tmparg);
1.1 nicm 820: }
1.5 nicm 821:
1.68 nicm 822: free(tmparg);
1.1 nicm 823: return (s);
824: }
825:
1.5 nicm 826: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 827: struct winlink *
828: cmd_find_window(struct cmd_ctx *ctx, const char *arg, struct session **sp)
829: {
1.51 nicm 830: struct session *s;
831: struct winlink *wl;
832: struct window_pane *wp;
833: const char *winptr;
834: char *sessptr = NULL;
835: int ambiguous = 0;
1.5 nicm 836:
837: /*
838: * Find the current session. There must always be a current session, if
839: * it can't be found, report an error.
840: */
1.52 nicm 841: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 842: ctx->error(ctx, "can't establish current session");
843: return (NULL);
844: }
845:
846: /* A NULL argument means the current session and window. */
847: if (arg == NULL) {
848: if (sp != NULL)
849: *sp = s;
850: return (s->curw);
851: }
852:
1.51 nicm 853: /* Lookup as pane id. */
854: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 855: s = cmd_window_session(ctx, wp->window, &wl);
1.51 nicm 856: if (sp != NULL)
857: *sp = s;
858: return (wl);
859: }
860:
1.5 nicm 861: /* Time to look at the argument. If it is empty, that is an error. */
862: if (*arg == '\0')
863: goto not_found;
864:
1.8 nicm 865: /* Find the separating colon and split into window and session. */
1.5 nicm 866: winptr = strchr(arg, ':');
867: if (winptr == NULL)
1.8 nicm 868: goto no_colon;
869: winptr++; /* skip : */
870: sessptr = xstrdup(arg);
871: *strchr(sessptr, ':') = '\0';
1.5 nicm 872:
873: /* Try to lookup the session if present. */
1.8 nicm 874: if (*sessptr != '\0') {
875: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 876: goto no_session;
877: }
878: if (sp != NULL)
879: *sp = s;
880:
881: /*
882: * Then work out the window. An empty string is the current window,
1.38 nicm 883: * otherwise try special cases then to look it up in the session.
1.5 nicm 884: */
1.8 nicm 885: if (*winptr == '\0')
1.5 nicm 886: wl = s->curw;
1.38 nicm 887: else if (winptr[0] == '!' && winptr[1] == '\0')
888: wl = TAILQ_FIRST(&s->lastw);
1.73 nicm 889: else if (winptr[0] == '^' && winptr[1] == '\0')
890: wl = RB_MIN(winlinks, &s->windows);
891: else if (winptr[0] == '$' && winptr[1] == '\0')
892: wl = RB_MAX(winlinks, &s->windows);
1.43 nicm 893: else if (winptr[0] == '+' || winptr[0] == '-')
894: wl = cmd_find_window_offset(winptr, s, &ambiguous);
895: else
1.38 nicm 896: wl = cmd_lookup_window(s, winptr, &ambiguous);
897: if (wl == NULL)
1.5 nicm 898: goto not_found;
1.35 nicm 899:
1.5 nicm 900: if (sessptr != NULL)
1.68 nicm 901: free(sessptr);
1.5 nicm 902: return (wl);
903:
1.8 nicm 904: no_colon:
1.38 nicm 905: /*
906: * No colon in the string, first try special cases, then as a window
907: * and lastly as a session.
908: */
909: if (arg[0] == '!' && arg[1] == '\0') {
910: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
911: goto not_found;
1.41 nicm 912: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 913: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 914: goto lookup_session;
915: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
916: goto lookup_session;
1.8 nicm 917:
918: if (sp != NULL)
919: *sp = s;
920:
921: return (wl);
922:
1.41 nicm 923: lookup_session:
924: if (ambiguous)
925: goto not_found;
1.53 nicm 926: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 927: goto no_session;
928:
929: if (sp != NULL)
930: *sp = s;
931:
932: return (s->curw);
933:
1.5 nicm 934: no_session:
935: if (ambiguous)
1.8 nicm 936: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 937: else
1.8 nicm 938: ctx->error(ctx, "session not found: %s", arg);
1.68 nicm 939: free(sessptr);
1.5 nicm 940: return (NULL);
941:
942: not_found:
943: if (ambiguous)
944: ctx->error(ctx, "multiple windows: %s", arg);
945: else
946: ctx->error(ctx, "window not found: %s", arg);
1.68 nicm 947: free(sessptr);
1.5 nicm 948: return (NULL);
949: }
1.1 nicm 950:
1.43 nicm 951: struct winlink *
952: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
953: {
954: struct winlink *wl;
955: int offset = 1;
956:
957: if (winptr[1] != '\0')
958: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
959: if (offset == 0)
960: wl = cmd_lookup_window(s, winptr, ambiguous);
961: else {
962: if (winptr[0] == '+')
963: wl = winlink_next_by_number(s->curw, s, offset);
964: else
965: wl = winlink_previous_by_number(s->curw, s, offset);
966: }
967:
968: return (wl);
969: }
970:
1.5 nicm 971: /*
972: * Find the target session and window index, whether or not it exists in the
973: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 974: * used when parsing an argument for a window target that may not exist (for
975: * example if it is going to be created).
1.5 nicm 976: */
977: int
978: cmd_find_index(struct cmd_ctx *ctx, const char *arg, struct session **sp)
979: {
980: struct session *s;
1.38 nicm 981: struct winlink *wl;
1.8 nicm 982: const char *winptr;
1.5 nicm 983: char *sessptr = NULL;
984: int idx, ambiguous = 0;
985:
986: /*
987: * Find the current session. There must always be a current session, if
988: * it can't be found, report an error.
989: */
1.52 nicm 990: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 991: ctx->error(ctx, "can't establish current session");
1.9 nicm 992: return (-2);
1.1 nicm 993: }
1.5 nicm 994:
995: /* A NULL argument means the current session and "no window" (-1). */
996: if (arg == NULL) {
997: if (sp != NULL)
998: *sp = s;
999: return (-1);
1000: }
1001:
1002: /* Time to look at the argument. If it is empty, that is an error. */
1003: if (*arg == '\0')
1004: goto not_found;
1005:
1006: /* Find the separating colon. If none, assume the current session. */
1007: winptr = strchr(arg, ':');
1008: if (winptr == NULL)
1.8 nicm 1009: goto no_colon;
1010: winptr++; /* skip : */
1011: sessptr = xstrdup(arg);
1012: *strchr(sessptr, ':') = '\0';
1.5 nicm 1013:
1014: /* Try to lookup the session if present. */
1015: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 1016: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 1017: goto no_session;
1018: }
1.1 nicm 1019: if (sp != NULL)
1020: *sp = s;
1021:
1.5 nicm 1022: /*
1.8 nicm 1023: * Then work out the window. An empty string is a new window otherwise
1024: * try to look it up in the session.
1.5 nicm 1025: */
1.8 nicm 1026: if (*winptr == '\0')
1.38 nicm 1027: idx = -1;
1028: else if (winptr[0] == '!' && winptr[1] == '\0') {
1029: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1030: goto not_found;
1031: idx = wl->idx;
1.41 nicm 1032: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 1033: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 1034: goto invalid_index;
1035: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1036: goto invalid_index;
1.35 nicm 1037:
1.68 nicm 1038: free(sessptr);
1.5 nicm 1039: return (idx);
1040:
1.8 nicm 1041: no_colon:
1.38 nicm 1042: /*
1043: * No colon in the string, first try special cases, then as a window
1044: * and lastly as a session.
1045: */
1046: if (arg[0] == '!' && arg[1] == '\0') {
1047: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1048: goto not_found;
1049: idx = wl->idx;
1.41 nicm 1050: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1051: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1052: goto lookup_session;
1053: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1054: goto lookup_session;
1.8 nicm 1055:
1056: if (sp != NULL)
1057: *sp = s;
1058:
1059: return (idx);
1060:
1.41 nicm 1061: lookup_session:
1062: if (ambiguous)
1063: goto not_found;
1.53 nicm 1064: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1065: goto no_session;
1066:
1067: if (sp != NULL)
1068: *sp = s;
1069:
1070: return (-1);
1071:
1.5 nicm 1072: no_session:
1073: if (ambiguous)
1.35 nicm 1074: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 1075: else
1.8 nicm 1076: ctx->error(ctx, "session not found: %s", arg);
1.68 nicm 1077: free(sessptr);
1.5 nicm 1078: return (-2);
1079:
1.41 nicm 1080: invalid_index:
1081: if (ambiguous)
1082: goto not_found;
1083: ctx->error(ctx, "invalid index: %s", arg);
1084:
1.68 nicm 1085: free(sessptr);
1.41 nicm 1086: return (-2);
1087:
1.5 nicm 1088: not_found:
1089: if (ambiguous)
1090: ctx->error(ctx, "multiple windows: %s", arg);
1.1 nicm 1091: else
1.5 nicm 1092: ctx->error(ctx, "window not found: %s", arg);
1.68 nicm 1093: free(sessptr);
1.5 nicm 1094: return (-2);
1.12 nicm 1095: }
1096:
1.43 nicm 1097: int
1098: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1099: {
1100: int idx, offset = 1;
1101:
1102: if (winptr[1] != '\0')
1103: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1104: if (offset == 0)
1105: idx = cmd_lookup_index(s, winptr, ambiguous);
1106: else {
1107: if (winptr[0] == '+') {
1108: if (s->curw->idx == INT_MAX)
1109: idx = cmd_lookup_index(s, winptr, ambiguous);
1110: else
1111: idx = s->curw->idx + offset;
1112: } else {
1113: if (s->curw->idx == 0)
1114: idx = cmd_lookup_index(s, winptr, ambiguous);
1115: else
1116: idx = s->curw->idx - offset;
1117: }
1118: }
1119:
1120: return (idx);
1121: }
1122:
1.12 nicm 1123: /*
1124: * Find the target session, window and pane number or report an error and
1125: * return NULL. The pane number is separated from the session:window by a .,
1126: * such as mysession:mywindow.0.
1127: */
1128: struct winlink *
1129: cmd_find_pane(struct cmd_ctx *ctx,
1130: const char *arg, struct session **sp, struct window_pane **wpp)
1131: {
1.55 nicm 1132: struct session *s;
1133: struct winlink *wl;
1134: const char *period, *errstr;
1135: char *winptr, *paneptr;
1136: u_int idx;
1.12 nicm 1137:
1138: /* Get the current session. */
1.52 nicm 1139: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.27 deraadt 1140: ctx->error(ctx, "can't establish current session");
1.12 nicm 1141: return (NULL);
1142: }
1143: if (sp != NULL)
1144: *sp = s;
1145:
1146: /* A NULL argument means the current session, window and pane. */
1147: if (arg == NULL) {
1148: *wpp = s->curw->window->active;
1149: return (s->curw);
1.51 nicm 1150: }
1151:
1152: /* Lookup as pane id. */
1153: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 1154: s = cmd_window_session(ctx, (*wpp)->window, &wl);
1.51 nicm 1155: if (sp != NULL)
1156: *sp = s;
1157: return (wl);
1.12 nicm 1158: }
1159:
1160: /* Look for a separating period. */
1161: if ((period = strrchr(arg, '.')) == NULL)
1162: goto no_period;
1163:
1164: /* Pull out the window part and parse it. */
1165: winptr = xstrdup(arg);
1166: winptr[period - arg] = '\0';
1167: if (*winptr == '\0')
1168: wl = s->curw;
1169: else if ((wl = cmd_find_window(ctx, winptr, sp)) == NULL)
1170: goto error;
1171:
1172: /* Find the pane section and look it up. */
1173: paneptr = winptr + (period - arg) + 1;
1174: if (*paneptr == '\0')
1175: *wpp = wl->window->active;
1.43 nicm 1176: else if (paneptr[0] == '+' || paneptr[0] == '-')
1177: *wpp = cmd_find_pane_offset(paneptr, wl);
1178: else {
1.12 nicm 1179: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1180: if (errstr != NULL)
1181: goto lookup_string;
1.12 nicm 1182: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1183: if (*wpp == NULL)
1184: goto lookup_string;
1.12 nicm 1185: }
1186:
1.68 nicm 1187: free(winptr);
1.12 nicm 1188: return (wl);
1189:
1.36 nicm 1190: lookup_string:
1191: /* Try pane string description. */
1.55 nicm 1192: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.36 nicm 1193: ctx->error(ctx, "can't find pane: %s", paneptr);
1194: goto error;
1195: }
1196:
1.68 nicm 1197: free(winptr);
1.39 nicm 1198: return (wl);
1.36 nicm 1199:
1.12 nicm 1200: no_period:
1201: /* Try as a pane number alone. */
1202: idx = strtonum(arg, 0, INT_MAX, &errstr);
1203: if (errstr != NULL)
1204: goto lookup_window;
1205:
1206: /* Try index in the current session and window. */
1207: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1208: goto lookup_window;
1.35 nicm 1209:
1.12 nicm 1210: return (s->curw);
1211:
1212: lookup_window:
1.36 nicm 1213: /* Try pane string description. */
1.55 nicm 1214: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1215: return (s->curw);
1216:
1.12 nicm 1217: /* Try as a window and use the active pane. */
1218: if ((wl = cmd_find_window(ctx, arg, sp)) != NULL)
1219: *wpp = wl->window->active;
1220: return (wl);
1.35 nicm 1221:
1.12 nicm 1222: error:
1.68 nicm 1223: free(winptr);
1.12 nicm 1224: return (NULL);
1.43 nicm 1225: }
1226:
1227: struct window_pane *
1228: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1229: {
1230: struct window *w = wl->window;
1231: struct window_pane *wp = w->active;
1232: u_int offset = 1;
1233:
1234: if (paneptr[1] != '\0')
1235: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1236: if (offset > 0) {
1237: if (paneptr[0] == '+')
1238: wp = window_pane_next_by_number(w, wp, offset);
1239: else
1240: wp = window_pane_previous_by_number(w, wp, offset);
1241: }
1242:
1243: return (wp);
1.15 nicm 1244: }
1245:
1246: /* Replace the first %% or %idx in template by s. */
1247: char *
1.75 nicm 1248: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 1249: {
1.75 nicm 1250: char ch, *buf;
1251: const char *ptr;
1252: int replaced;
1253: size_t len;
1.15 nicm 1254:
1.76 nicm 1255: if (strchr(template, '%') == NULL)
1.15 nicm 1256: return (xstrdup(template));
1257:
1258: buf = xmalloc(1);
1259: *buf = '\0';
1260: len = 0;
1261: replaced = 0;
1262:
1263: ptr = template;
1264: while (*ptr != '\0') {
1265: switch (ch = *ptr++) {
1266: case '%':
1267: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1268: if (*ptr != '%' || replaced)
1269: break;
1270: replaced = 1;
1271: }
1272: ptr++;
1273:
1274: len += strlen(s);
1275: buf = xrealloc(buf, 1, len + 1);
1276: strlcat(buf, s, len + 1);
1277: continue;
1278: }
1279: buf = xrealloc(buf, 1, len + 2);
1280: buf[len++] = ch;
1281: buf[len] = '\0';
1282: }
1283:
1284: return (buf);
1.57 nicm 1285: }
1286:
1.61 nicm 1287: /*
1288: * Return the default path for a new pane, using the given path or the
1289: * default-path option if it is NULL. Several special values are accepted: the
1290: * empty string or relative path for the current pane's working directory, ~
1291: * for the user's home, - for the session working directory, . for the tmux
1292: * server's working directory. The default on failure is the session's working
1293: * directory.
1294: */
1.59 nicm 1295: const char *
1.61 nicm 1296: cmd_get_default_path(struct cmd_ctx *ctx, const char *cwd)
1.57 nicm 1297: {
1298: struct session *s;
1.58 stsp 1299: struct environ_entry *envent;
1.61 nicm 1300: const char *root;
1301: char tmp[MAXPATHLEN];
1302: struct passwd *pw;
1303: int n;
1304: size_t skip;
1305: static char path[MAXPATHLEN];
1.57 nicm 1306:
1307: if ((s = cmd_current_session(ctx, 0)) == NULL)
1308: return (NULL);
1309:
1.61 nicm 1310: if (cwd == NULL)
1311: cwd = options_get_string(&s->options, "default-path");
1312:
1313: skip = 1;
1314: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1315: /* User's home directory - $HOME. */
1316: skip = 5;
1317: goto find_home;
1318: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1319: /* User's home directory - ~. */
1320: goto find_home;
1321: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1322: /* Session working directory. */
1323: root = s->cwd;
1324: goto complete_path;
1.66 nicm 1325: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1326: /* Server working directory. */
1327: if (getcwd(tmp, sizeof tmp) != NULL) {
1328: root = tmp;
1329: goto complete_path;
1.57 nicm 1330: }
1331: return (s->cwd);
1.61 nicm 1332: } else if (*cwd == '/') {
1333: /* Absolute path. */
1334: return (cwd);
1335: } else {
1336: /* Empty or relative path. */
1337: if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
1338: root = ctx->cmdclient->cwd;
1.66 nicm 1339: else if (ctx->curclient != NULL && s->curw != NULL)
1.71 nicm 1340: root = get_proc_cwd(s->curw->window->active->fd);
1.61 nicm 1341: else
1342: return (s->cwd);
1343: skip = 0;
1.62 nicm 1344: if (root != NULL)
1345: goto complete_path;
1.57 nicm 1346: }
1.61 nicm 1347:
1348: return (s->cwd);
1349:
1350: find_home:
1351: envent = environ_find(&global_environ, "HOME");
1352: if (envent != NULL && *envent->value != '\0')
1353: root = envent->value;
1354: else if ((pw = getpwuid(getuid())) != NULL)
1355: root = pw->pw_dir;
1356: else
1357: return (s->cwd);
1358:
1359: complete_path:
1.65 nicm 1360: if (root[skip] == '\0') {
1361: strlcpy(path, root, sizeof path);
1362: return (path);
1363: }
1.61 nicm 1364: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1365: if (n > 0 && (size_t)n < sizeof path)
1366: return (path);
1367: return (s->cwd);
1.1 nicm 1368: }
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