Annotation of src/usr.bin/tmux/cmd.c, Revision 1.67
1.67 ! nicm 1: /* $OpenBSD: cmd.c,v 1.66 2012/06/18 09:20:19 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,
1.1 nicm 38: &cmd_choose_session_entry,
1.67 ! nicm 39: &cmd_choose_tree_entry,
1.1 nicm 40: &cmd_choose_window_entry,
41: &cmd_clear_history_entry,
42: &cmd_clock_mode_entry,
43: &cmd_command_prompt_entry,
44: &cmd_confirm_before_entry,
45: &cmd_copy_mode_entry,
46: &cmd_delete_buffer_entry,
47: &cmd_detach_client_entry,
1.7 nicm 48: &cmd_display_message_entry,
1.16 nicm 49: &cmd_display_panes_entry,
1.1 nicm 50: &cmd_find_window_entry,
51: &cmd_has_session_entry,
1.4 nicm 52: &cmd_if_shell_entry,
1.37 nicm 53: &cmd_join_pane_entry,
1.1 nicm 54: &cmd_kill_pane_entry,
55: &cmd_kill_server_entry,
56: &cmd_kill_session_entry,
57: &cmd_kill_window_entry,
1.45 nicm 58: &cmd_last_pane_entry,
1.1 nicm 59: &cmd_last_window_entry,
60: &cmd_link_window_entry,
61: &cmd_list_buffers_entry,
62: &cmd_list_clients_entry,
63: &cmd_list_commands_entry,
64: &cmd_list_keys_entry,
1.23 nicm 65: &cmd_list_panes_entry,
1.1 nicm 66: &cmd_list_sessions_entry,
67: &cmd_list_windows_entry,
68: &cmd_load_buffer_entry,
1.19 nicm 69: &cmd_lock_client_entry,
1.1 nicm 70: &cmd_lock_server_entry,
1.19 nicm 71: &cmd_lock_session_entry,
1.63 nicm 72: &cmd_move_pane_entry,
1.1 nicm 73: &cmd_move_window_entry,
74: &cmd_new_session_entry,
75: &cmd_new_window_entry,
76: &cmd_next_layout_entry,
77: &cmd_next_window_entry,
78: &cmd_paste_buffer_entry,
1.24 nicm 79: &cmd_pipe_pane_entry,
1.1 nicm 80: &cmd_previous_layout_entry,
81: &cmd_previous_window_entry,
82: &cmd_refresh_client_entry,
83: &cmd_rename_session_entry,
84: &cmd_rename_window_entry,
85: &cmd_resize_pane_entry,
1.56 nicm 86: &cmd_respawn_pane_entry,
1.1 nicm 87: &cmd_respawn_window_entry,
88: &cmd_rotate_window_entry,
1.17 nicm 89: &cmd_run_shell_entry,
1.1 nicm 90: &cmd_save_buffer_entry,
91: &cmd_select_layout_entry,
92: &cmd_select_pane_entry,
93: &cmd_select_window_entry,
94: &cmd_send_keys_entry,
95: &cmd_send_prefix_entry,
96: &cmd_server_info_entry,
97: &cmd_set_buffer_entry,
1.13 nicm 98: &cmd_set_environment_entry,
1.1 nicm 99: &cmd_set_option_entry,
100: &cmd_set_window_option_entry,
101: &cmd_show_buffer_entry,
1.13 nicm 102: &cmd_show_environment_entry,
1.32 nicm 103: &cmd_show_messages_entry,
1.1 nicm 104: &cmd_show_options_entry,
105: &cmd_show_window_options_entry,
106: &cmd_source_file_entry,
107: &cmd_split_window_entry,
108: &cmd_start_server_entry,
109: &cmd_suspend_client_entry,
110: &cmd_swap_pane_entry,
111: &cmd_swap_window_entry,
112: &cmd_switch_client_entry,
113: &cmd_unbind_key_entry,
114: &cmd_unlink_window_entry,
115: NULL
116: };
117:
1.47 nicm 118: struct session *cmd_choose_session_list(struct sessionslist *);
1.52 nicm 119: struct session *cmd_choose_session(int);
1.31 nicm 120: struct client *cmd_choose_client(struct clients *);
1.5 nicm 121: struct client *cmd_lookup_client(const char *);
122: struct session *cmd_lookup_session(const char *, int *);
123: struct winlink *cmd_lookup_window(struct session *, const char *, int *);
1.8 nicm 124: int cmd_lookup_index(struct session *, const char *, int *);
1.51 nicm 125: struct window_pane *cmd_lookup_paneid(const char *);
1.60 nicm 126: struct winlink *cmd_lookup_winlink_windowid(struct session *, const char *);
127: struct window *cmd_lookup_windowid(const char *);
128: struct session *cmd_window_session(struct cmd_ctx *,
129: struct window *, struct winlink **);
1.43 nicm 130: struct winlink *cmd_find_window_offset(const char *, struct session *, int *);
131: int cmd_find_index_offset(const char *, struct session *, int *);
1.51 nicm 132: struct window_pane *cmd_find_pane_offset(const char *, struct winlink *);
1.5 nicm 133:
1.10 nicm 134: int
135: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
136: {
137: size_t arglen;
138: int i;
139:
140: *buf = '\0';
141: for (i = 0; i < argc; i++) {
142: if (strlcpy(buf, argv[i], len) >= len)
143: return (-1);
144: arglen = strlen(argv[i]) + 1;
145: buf += arglen;
146: len -= arglen;
147: }
148:
149: return (0);
150: }
151:
152: int
153: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
154: {
155: int i;
156: size_t arglen;
157:
158: if (argc == 0)
159: return (0);
160: *argv = xcalloc(argc, sizeof **argv);
161:
162: buf[len - 1] = '\0';
163: for (i = 0; i < argc; i++) {
164: if (len == 0) {
165: cmd_free_argv(argc, *argv);
166: return (-1);
167: }
168:
169: arglen = strlen(buf) + 1;
170: (*argv)[i] = xstrdup(buf);
171: buf += arglen;
172: len -= arglen;
173: }
174:
175: return (0);
1.46 nicm 176: }
177:
178: char **
1.49 nicm 179: cmd_copy_argv(int argc, char *const *argv)
1.46 nicm 180: {
181: char **new_argv;
182: int i;
183:
184: if (argc == 0)
185: return (NULL);
186: new_argv = xcalloc(argc, sizeof *new_argv);
187: for (i = 0; i < argc; i++) {
188: if (argv[i] != NULL)
189: new_argv[i] = xstrdup(argv[i]);
190: }
191: return (new_argv);
1.10 nicm 192: }
193:
194: void
195: cmd_free_argv(int argc, char **argv)
196: {
197: int i;
198:
199: if (argc == 0)
1.35 nicm 200: return;
1.10 nicm 201: for (i = 0; i < argc; i++) {
202: if (argv[i] != NULL)
203: xfree(argv[i]);
204: }
205: xfree(argv);
206: }
207:
1.1 nicm 208: struct cmd *
209: cmd_parse(int argc, char **argv, char **cause)
210: {
211: const struct cmd_entry **entryp, *entry;
1.27 deraadt 212: struct cmd *cmd;
1.49 nicm 213: struct args *args;
1.1 nicm 214: char s[BUFSIZ];
1.49 nicm 215: int ambiguous = 0;
1.1 nicm 216:
217: *cause = NULL;
1.2 nicm 218: if (argc == 0) {
219: xasprintf(cause, "no command");
1.1 nicm 220: return (NULL);
1.2 nicm 221: }
1.1 nicm 222:
223: entry = NULL;
224: for (entryp = cmd_table; *entryp != NULL; entryp++) {
225: if ((*entryp)->alias != NULL &&
226: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 227: ambiguous = 0;
1.1 nicm 228: entry = *entryp;
229: break;
230: }
231:
232: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
233: continue;
234: if (entry != NULL)
1.3 nicm 235: ambiguous = 1;
1.1 nicm 236: entry = *entryp;
237:
238: /* Bail now if an exact match. */
239: if (strcmp(entry->name, argv[0]) == 0)
240: break;
241: }
1.3 nicm 242: if (ambiguous)
243: goto ambiguous;
1.1 nicm 244: if (entry == NULL) {
245: xasprintf(cause, "unknown command: %s", argv[0]);
246: return (NULL);
247: }
248:
1.49 nicm 249: args = args_parse(entry->args_template, argc, argv);
250: if (args == NULL)
251: goto usage;
252: if (entry->args_lower != -1 && args->argc < entry->args_lower)
253: goto usage;
254: if (entry->args_upper != -1 && args->argc > entry->args_upper)
255: goto usage;
256: if (entry->check != NULL && entry->check(args) != 0)
257: goto usage;
1.1 nicm 258:
259: cmd = xmalloc(sizeof *cmd);
260: cmd->entry = entry;
1.49 nicm 261: cmd->args = args;
1.1 nicm 262: return (cmd);
263:
264: ambiguous:
265: *s = '\0';
266: for (entryp = cmd_table; *entryp != NULL; entryp++) {
267: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
268: continue;
269: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
270: break;
271: if (strlcat(s, ", ", sizeof s) >= sizeof s)
272: break;
273: }
274: s[strlen(s) - 2] = '\0';
275: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
276: return (NULL);
277:
278: usage:
1.49 nicm 279: if (args != NULL)
280: args_free(args);
1.1 nicm 281: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
282: return (NULL);
283: }
284:
285: int
286: cmd_exec(struct cmd *cmd, struct cmd_ctx *ctx)
287: {
288: return (cmd->entry->exec(cmd, ctx));
289: }
290:
291: void
292: cmd_free(struct cmd *cmd)
293: {
1.49 nicm 294: if (cmd->args != NULL)
295: args_free(cmd->args);
1.1 nicm 296: xfree(cmd);
297: }
298:
299: size_t
300: cmd_print(struct cmd *cmd, char *buf, size_t len)
301: {
1.49 nicm 302: size_t off, used;
303:
304: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
305: if (off < len) {
306: used = args_print(cmd->args, buf + off, len - off);
307: if (used == 0)
1.64 nicm 308: off--;
309: else
1.49 nicm 310: off += used;
1.64 nicm 311: buf[off] = '\0';
1.49 nicm 312: }
313: return (off);
1.1 nicm 314: }
315:
1.5 nicm 316: /*
317: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 318: * context has one; 2) the most recently used session containing the pty of the
319: * calling client, if any; 3) the session specified in the TMUX variable from
320: * the environment (as passed from the client); 4) the most recently used
321: * session from all sessions.
1.5 nicm 322: */
1.1 nicm 323: struct session *
1.52 nicm 324: cmd_current_session(struct cmd_ctx *ctx, int prefer_unattached)
1.1 nicm 325: {
326: struct msg_command_data *data = ctx->msgdata;
1.11 nicm 327: struct client *c = ctx->cmdclient;
1.5 nicm 328: struct session *s;
1.47 nicm 329: struct sessionslist ss;
1.11 nicm 330: struct winlink *wl;
331: struct window_pane *wp;
332: int found;
1.1 nicm 333:
1.14 nicm 334: if (ctx->curclient != NULL && ctx->curclient->session != NULL)
335: return (ctx->curclient->session);
1.1 nicm 336:
1.11 nicm 337: /*
338: * If the name of the calling client's pty is know, build a list of the
339: * sessions that contain it and if any choose either the first or the
340: * newest.
341: */
342: if (c != NULL && c->tty.path != NULL) {
343: ARRAY_INIT(&ss);
1.47 nicm 344: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 345: found = 0;
346: RB_FOREACH(wl, winlinks, &s->windows) {
347: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
348: if (strcmp(wp->tty, c->tty.path) == 0) {
349: found = 1;
350: break;
351: }
352: }
353: if (found)
354: break;
355: }
356: if (found)
357: ARRAY_ADD(&ss, s);
358: }
359:
1.47 nicm 360: s = cmd_choose_session_list(&ss);
1.11 nicm 361: ARRAY_FREE(&ss);
362: if (s != NULL)
363: return (s);
364: }
365:
366: /* Use the session from the TMUX environment variable. */
1.50 nicm 367: if (data != NULL && data->pid == getpid() && data->idx != -1) {
1.47 nicm 368: s = session_find_by_index(data->idx);
369: if (s != NULL)
370: return (s);
371: }
372:
1.52 nicm 373: return (cmd_choose_session(prefer_unattached));
1.47 nicm 374: }
375:
1.52 nicm 376: /*
377: * Find the most recently used session, preferring unattached if the flag is
378: * set.
379: */
1.47 nicm 380: struct session *
1.52 nicm 381: cmd_choose_session(int prefer_unattached)
1.47 nicm 382: {
383: struct session *s, *sbest;
384: struct timeval *tv = NULL;
385:
386: sbest = NULL;
387: RB_FOREACH(s, sessions, &sessions) {
1.52 nicm 388: if (tv == NULL || timercmp(&s->activity_time, tv, >) ||
389: (prefer_unattached &&
390: !(sbest->flags & SESSION_UNATTACHED) &&
391: (s->flags & SESSION_UNATTACHED))) {
1.47 nicm 392: sbest = s;
393: tv = &s->activity_time;
394: }
395: }
1.1 nicm 396:
1.47 nicm 397: return (sbest);
1.5 nicm 398: }
399:
1.31 nicm 400: /* Find the most recently used session from a list. */
1.5 nicm 401: struct session *
1.47 nicm 402: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 403: {
1.31 nicm 404: struct session *s, *sbest;
1.5 nicm 405: struct timeval *tv = NULL;
406: u_int i;
407:
1.31 nicm 408: sbest = NULL;
1.11 nicm 409: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
410: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 411: continue;
412:
1.31 nicm 413: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
414: sbest = s;
415: tv = &s->activity_time;
1.1 nicm 416: }
417: }
1.5 nicm 418:
1.31 nicm 419: return (sbest);
1.1 nicm 420: }
421:
1.30 nicm 422: /*
423: * Find the current client. First try the current client if set, then pick the
1.31 nicm 424: * most recently used of the clients attached to the current session if any,
425: * then of all clients.
1.30 nicm 426: */
427: struct client *
428: cmd_current_client(struct cmd_ctx *ctx)
429: {
430: struct session *s;
431: struct client *c;
432: struct clients cc;
433: u_int i;
434:
435: if (ctx->curclient != NULL)
436: return (ctx->curclient);
437:
438: /*
439: * No current client set. Find the current session and return the
440: * newest of its clients.
441: */
1.52 nicm 442: s = cmd_current_session(ctx, 0);
1.30 nicm 443: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
444: ARRAY_INIT(&cc);
445: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
446: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
447: continue;
448: if (s == c->session)
449: ARRAY_ADD(&cc, c);
450: }
451:
1.31 nicm 452: c = cmd_choose_client(&cc);
1.30 nicm 453: ARRAY_FREE(&cc);
454: if (c != NULL)
455: return (c);
456: }
457:
1.31 nicm 458: return (cmd_choose_client(&clients));
1.30 nicm 459: }
460:
1.31 nicm 461: /* Choose the most recently used client from a list. */
1.20 nicm 462: struct client *
1.31 nicm 463: cmd_choose_client(struct clients *cc)
1.20 nicm 464: {
1.31 nicm 465: struct client *c, *cbest;
1.20 nicm 466: struct timeval *tv = NULL;
467: u_int i;
468:
1.31 nicm 469: cbest = NULL;
1.30 nicm 470: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
471: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 472: continue;
473: if (c->session == NULL)
474: continue;
475:
1.31 nicm 476: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
477: cbest = c;
478: tv = &c->activity_time;
1.20 nicm 479: }
480: }
481:
1.31 nicm 482: return (cbest);
1.20 nicm 483: }
484:
1.5 nicm 485: /* Find the target client or report an error and return NULL. */
1.1 nicm 486: struct client *
487: cmd_find_client(struct cmd_ctx *ctx, const char *arg)
488: {
1.30 nicm 489: struct client *c;
1.5 nicm 490: char *tmparg;
491: size_t arglen;
1.1 nicm 492:
1.5 nicm 493: /* A NULL argument means the current client. */
1.30 nicm 494: if (arg == NULL)
495: return (cmd_current_client(ctx));
1.5 nicm 496: tmparg = xstrdup(arg);
497:
498: /* Trim a single trailing colon if any. */
499: arglen = strlen(tmparg);
500: if (arglen != 0 && tmparg[arglen - 1] == ':')
501: tmparg[arglen - 1] = '\0';
502:
503: /* Find the client, if any. */
504: c = cmd_lookup_client(tmparg);
505:
506: /* If no client found, report an error. */
507: if (c == NULL)
508: ctx->error(ctx, "client not found: %s", tmparg);
509:
510: xfree(tmparg);
511: return (c);
512: }
513:
514: /*
515: * Lookup a client by device path. Either of a full match and a match without a
516: * leading _PATH_DEV ("/dev/") is accepted.
517: */
518: struct client *
519: cmd_lookup_client(const char *name)
520: {
521: struct client *c;
522: const char *path;
523: u_int i;
524:
525: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 526: c = ARRAY_ITEM(&clients, i);
527: if (c == NULL || c->session == NULL)
1.5 nicm 528: continue;
529: path = c->tty.path;
530:
531: /* Check for exact matches. */
532: if (strcmp(name, path) == 0)
533: return (c);
534:
535: /* Check without leading /dev if present. */
536: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
537: continue;
538: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
539: return (c);
540: }
541:
542: return (NULL);
543: }
544:
545: /* Lookup a session by name. If no session is found, NULL is returned. */
546: struct session *
547: cmd_lookup_session(const char *name, int *ambiguous)
548: {
549: struct session *s, *sfound;
550:
551: *ambiguous = 0;
552:
553: /*
1.28 nicm 554: * Look for matches. First look for exact matches - session names must
555: * be unique so an exact match can't be ambigious and can just be
556: * returned.
1.5 nicm 557: */
1.47 nicm 558: if ((s = session_find(name)) != NULL)
559: return (s);
1.28 nicm 560:
561: /*
562: * Otherwise look for partial matches, returning early if it is found to
563: * be ambiguous.
564: */
565: sfound = NULL;
1.47 nicm 566: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 567: if (strncmp(name, s->name, strlen(name)) == 0 ||
568: fnmatch(name, s->name, 0) == 0) {
569: if (sfound != NULL) {
570: *ambiguous = 1;
571: return (NULL);
572: }
573: sfound = s;
574: }
575: }
1.35 nicm 576: return (sfound);
1.5 nicm 577: }
578:
579: /*
1.8 nicm 580: * Lookup a window or return -1 if not found or ambigious. First try as an
581: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 582: * idx if the window index is a valid number but there is no window with that
1.8 nicm 583: * index.
1.5 nicm 584: */
585: struct winlink *
586: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
587: {
588: struct winlink *wl, *wlfound;
589: const char *errstr;
590: u_int idx;
591:
592: *ambiguous = 0;
593:
1.60 nicm 594: /* Try as a window id. */
595: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
596: return (wl);
597:
1.5 nicm 598: /* First see if this is a valid window index in this session. */
599: idx = strtonum(name, 0, INT_MAX, &errstr);
600: if (errstr == NULL) {
601: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
602: return (wl);
603: }
1.35 nicm 604:
1.5 nicm 605: /* Look for exact matches, error if more than one. */
606: wlfound = NULL;
607: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 608: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 609: if (wlfound != NULL) {
610: *ambiguous = 1;
611: return (NULL);
612: }
613: wlfound = wl;
1.1 nicm 614: }
615: }
1.5 nicm 616: if (wlfound != NULL)
617: return (wlfound);
618:
619: /* Now look for pattern matches, again error if multiple. */
620: wlfound = NULL;
621: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 622: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
623: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 624: if (wlfound != NULL) {
625: *ambiguous = 1;
626: return (NULL);
627: }
628: wlfound = wl;
629: }
1.35 nicm 630: }
1.5 nicm 631: if (wlfound != NULL)
632: return (wlfound);
633:
634: return (NULL);
1.1 nicm 635: }
636:
1.8 nicm 637: /*
638: * Find a window index - if the window doesn't exist, check if it is a
639: * potential index and return it anyway.
640: */
641: int
642: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
643: {
644: struct winlink *wl;
645: const char *errstr;
646: u_int idx;
647:
648: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
649: return (wl->idx);
650: if (*ambiguous)
651: return (-1);
652:
653: idx = strtonum(name, 0, INT_MAX, &errstr);
654: if (errstr == NULL)
655: return (idx);
656:
657: return (-1);
658: }
659:
1.60 nicm 660: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 661: struct window_pane *
662: cmd_lookup_paneid(const char *arg)
663: {
664: const char *errstr;
665: u_int paneid;
666:
667: if (*arg != '%')
668: return (NULL);
669:
670: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
671: if (errstr != NULL)
672: return (NULL);
673: return (window_pane_find_by_id(paneid));
674: }
675:
1.60 nicm 676: /* Lookup window id in a session. An initial @ means a window id. */
677: struct winlink *
678: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
679: {
680: const char *errstr;
681: u_int windowid;
682:
683: if (*arg != '@')
684: return (NULL);
685:
686: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
687: if (errstr != NULL)
688: return (NULL);
689: return (winlink_find_by_window_id(&s->windows, windowid));
690: }
691:
692: /* Lookup window id. An initial @ means a window id. */
693: struct window *
694: cmd_lookup_windowid(const char *arg)
695: {
696: const char *errstr;
697: u_int windowid;
698:
699: if (*arg != '@')
700: return (NULL);
701:
702: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
703: if (errstr != NULL)
704: return (NULL);
705: return (window_find_by_id(windowid));
706: }
707:
708: /* Find session and winlink for window. */
1.51 nicm 709: struct session *
1.60 nicm 710: cmd_window_session(struct cmd_ctx *ctx, struct window *w, struct winlink **wlp)
1.51 nicm 711: {
712: struct session *s;
713: struct sessionslist ss;
714: struct winlink *wl;
715:
1.60 nicm 716: /* If this window is in the current session, return that winlink. */
1.52 nicm 717: s = cmd_current_session(ctx, 0);
1.51 nicm 718: if (s != NULL) {
1.60 nicm 719: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 720: if (wl != NULL) {
721: if (wlp != NULL)
722: *wlp = wl;
723: return (s);
724: }
725: }
726:
1.60 nicm 727: /* Otherwise choose from all sessions with this window. */
1.51 nicm 728: ARRAY_INIT(&ss);
729: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 730: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 731: ARRAY_ADD(&ss, s);
732: }
733: s = cmd_choose_session_list(&ss);
734: ARRAY_FREE(&ss);
735: if (wlp != NULL)
1.60 nicm 736: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 737: return (s);
738: }
739:
1.5 nicm 740: /* Find the target session or report an error and return NULL. */
1.1 nicm 741: struct session *
1.52 nicm 742: cmd_find_session(struct cmd_ctx *ctx, const char *arg, int prefer_unattached)
1.1 nicm 743: {
1.51 nicm 744: struct session *s;
745: struct window_pane *wp;
1.60 nicm 746: struct window *w;
1.51 nicm 747: struct client *c;
748: char *tmparg;
749: size_t arglen;
750: int ambiguous;
1.1 nicm 751:
1.5 nicm 752: /* A NULL argument means the current session. */
1.1 nicm 753: if (arg == NULL)
1.52 nicm 754: return (cmd_current_session(ctx, prefer_unattached));
1.5 nicm 755:
1.60 nicm 756: /* Lookup as pane id or window id. */
1.51 nicm 757: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.60 nicm 758: return (cmd_window_session(ctx, wp->window, NULL));
759: if ((w = cmd_lookup_windowid(arg)) != NULL)
760: return (cmd_window_session(ctx, w, NULL));
1.51 nicm 761:
1.5 nicm 762: /* Trim a single trailing colon if any. */
1.54 nicm 763: tmparg = xstrdup(arg);
1.5 nicm 764: arglen = strlen(tmparg);
765: if (arglen != 0 && tmparg[arglen - 1] == ':')
766: tmparg[arglen - 1] = '\0';
767:
1.53 nicm 768: /* An empty session name is the current session. */
769: if (*tmparg == '\0') {
1.54 nicm 770: xfree(tmparg);
1.53 nicm 771: return (cmd_current_session(ctx, prefer_unattached));
772: }
773:
1.5 nicm 774: /* Find the session, if any. */
775: s = cmd_lookup_session(tmparg, &ambiguous);
776:
777: /* If it doesn't, try to match it as a client. */
778: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
779: s = c->session;
780:
781: /* If no session found, report an error. */
782: if (s == NULL) {
783: if (ambiguous)
784: ctx->error(ctx, "more than one session: %s", tmparg);
785: else
786: ctx->error(ctx, "session not found: %s", tmparg);
1.1 nicm 787: }
1.5 nicm 788:
789: xfree(tmparg);
1.1 nicm 790: return (s);
791: }
792:
1.5 nicm 793: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 794: struct winlink *
795: cmd_find_window(struct cmd_ctx *ctx, const char *arg, struct session **sp)
796: {
1.51 nicm 797: struct session *s;
798: struct winlink *wl;
799: struct window_pane *wp;
800: const char *winptr;
801: char *sessptr = NULL;
802: int ambiguous = 0;
1.5 nicm 803:
804: /*
805: * Find the current session. There must always be a current session, if
806: * it can't be found, report an error.
807: */
1.52 nicm 808: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 809: ctx->error(ctx, "can't establish current session");
810: return (NULL);
811: }
812:
813: /* A NULL argument means the current session and window. */
814: if (arg == NULL) {
815: if (sp != NULL)
816: *sp = s;
817: return (s->curw);
818: }
819:
1.51 nicm 820: /* Lookup as pane id. */
821: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 822: s = cmd_window_session(ctx, wp->window, &wl);
1.51 nicm 823: if (sp != NULL)
824: *sp = s;
825: return (wl);
826: }
827:
1.5 nicm 828: /* Time to look at the argument. If it is empty, that is an error. */
829: if (*arg == '\0')
830: goto not_found;
831:
1.8 nicm 832: /* Find the separating colon and split into window and session. */
1.5 nicm 833: winptr = strchr(arg, ':');
834: if (winptr == NULL)
1.8 nicm 835: goto no_colon;
836: winptr++; /* skip : */
837: sessptr = xstrdup(arg);
838: *strchr(sessptr, ':') = '\0';
1.5 nicm 839:
840: /* Try to lookup the session if present. */
1.8 nicm 841: if (*sessptr != '\0') {
842: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 843: goto no_session;
844: }
845: if (sp != NULL)
846: *sp = s;
847:
848: /*
849: * Then work out the window. An empty string is the current window,
1.38 nicm 850: * otherwise try special cases then to look it up in the session.
1.5 nicm 851: */
1.8 nicm 852: if (*winptr == '\0')
1.5 nicm 853: wl = s->curw;
1.38 nicm 854: else if (winptr[0] == '!' && winptr[1] == '\0')
855: wl = TAILQ_FIRST(&s->lastw);
1.43 nicm 856: else if (winptr[0] == '+' || winptr[0] == '-')
857: wl = cmd_find_window_offset(winptr, s, &ambiguous);
858: else
1.38 nicm 859: wl = cmd_lookup_window(s, winptr, &ambiguous);
860: if (wl == NULL)
1.5 nicm 861: goto not_found;
1.35 nicm 862:
1.5 nicm 863: if (sessptr != NULL)
864: xfree(sessptr);
865: return (wl);
866:
1.8 nicm 867: no_colon:
1.38 nicm 868: /*
869: * No colon in the string, first try special cases, then as a window
870: * and lastly as a session.
871: */
872: if (arg[0] == '!' && arg[1] == '\0') {
873: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
874: goto not_found;
1.41 nicm 875: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 876: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 877: goto lookup_session;
878: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
879: goto lookup_session;
1.8 nicm 880:
881: if (sp != NULL)
882: *sp = s;
883:
884: return (wl);
885:
1.41 nicm 886: lookup_session:
887: if (ambiguous)
888: goto not_found;
1.53 nicm 889: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 890: goto no_session;
891:
892: if (sp != NULL)
893: *sp = s;
894:
895: return (s->curw);
896:
1.5 nicm 897: no_session:
898: if (ambiguous)
1.8 nicm 899: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 900: else
1.8 nicm 901: ctx->error(ctx, "session not found: %s", arg);
1.5 nicm 902: if (sessptr != NULL)
903: xfree(sessptr);
904: return (NULL);
905:
906: not_found:
907: if (ambiguous)
908: ctx->error(ctx, "multiple windows: %s", arg);
909: else
910: ctx->error(ctx, "window not found: %s", arg);
911: if (sessptr != NULL)
912: xfree(sessptr);
913: return (NULL);
914: }
1.1 nicm 915:
1.43 nicm 916: struct winlink *
917: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
918: {
919: struct winlink *wl;
920: int offset = 1;
921:
922: if (winptr[1] != '\0')
923: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
924: if (offset == 0)
925: wl = cmd_lookup_window(s, winptr, ambiguous);
926: else {
927: if (winptr[0] == '+')
928: wl = winlink_next_by_number(s->curw, s, offset);
929: else
930: wl = winlink_previous_by_number(s->curw, s, offset);
931: }
932:
933: return (wl);
934: }
935:
1.5 nicm 936: /*
937: * Find the target session and window index, whether or not it exists in the
938: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 939: * used when parsing an argument for a window target that may not exist (for
940: * example if it is going to be created).
1.5 nicm 941: */
942: int
943: cmd_find_index(struct cmd_ctx *ctx, const char *arg, struct session **sp)
944: {
945: struct session *s;
1.38 nicm 946: struct winlink *wl;
1.8 nicm 947: const char *winptr;
1.5 nicm 948: char *sessptr = NULL;
949: int idx, ambiguous = 0;
950:
951: /*
952: * Find the current session. There must always be a current session, if
953: * it can't be found, report an error.
954: */
1.52 nicm 955: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 956: ctx->error(ctx, "can't establish current session");
1.9 nicm 957: return (-2);
1.1 nicm 958: }
1.5 nicm 959:
960: /* A NULL argument means the current session and "no window" (-1). */
961: if (arg == NULL) {
962: if (sp != NULL)
963: *sp = s;
964: return (-1);
965: }
966:
967: /* Time to look at the argument. If it is empty, that is an error. */
968: if (*arg == '\0')
969: goto not_found;
970:
971: /* Find the separating colon. If none, assume the current session. */
972: winptr = strchr(arg, ':');
973: if (winptr == NULL)
1.8 nicm 974: goto no_colon;
975: winptr++; /* skip : */
976: sessptr = xstrdup(arg);
977: *strchr(sessptr, ':') = '\0';
1.5 nicm 978:
979: /* Try to lookup the session if present. */
980: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 981: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 982: goto no_session;
983: }
1.1 nicm 984: if (sp != NULL)
985: *sp = s;
986:
1.5 nicm 987: /*
1.8 nicm 988: * Then work out the window. An empty string is a new window otherwise
989: * try to look it up in the session.
1.5 nicm 990: */
1.8 nicm 991: if (*winptr == '\0')
1.38 nicm 992: idx = -1;
993: else if (winptr[0] == '!' && winptr[1] == '\0') {
994: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
995: goto not_found;
996: idx = wl->idx;
1.41 nicm 997: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 998: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 999: goto invalid_index;
1000: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1001: goto invalid_index;
1.35 nicm 1002:
1.5 nicm 1003: if (sessptr != NULL)
1004: xfree(sessptr);
1005: return (idx);
1006:
1.8 nicm 1007: no_colon:
1.38 nicm 1008: /*
1009: * No colon in the string, first try special cases, then as a window
1010: * and lastly as a session.
1011: */
1012: if (arg[0] == '!' && arg[1] == '\0') {
1013: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1014: goto not_found;
1015: idx = wl->idx;
1.41 nicm 1016: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1017: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1018: goto lookup_session;
1019: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1020: goto lookup_session;
1.8 nicm 1021:
1022: if (sp != NULL)
1023: *sp = s;
1024:
1025: return (idx);
1026:
1.41 nicm 1027: lookup_session:
1028: if (ambiguous)
1029: goto not_found;
1.53 nicm 1030: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1031: goto no_session;
1032:
1033: if (sp != NULL)
1034: *sp = s;
1035:
1036: return (-1);
1037:
1.5 nicm 1038: no_session:
1039: if (ambiguous)
1.35 nicm 1040: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 1041: else
1.8 nicm 1042: ctx->error(ctx, "session not found: %s", arg);
1.5 nicm 1043: if (sessptr != NULL)
1044: xfree(sessptr);
1045: return (-2);
1046:
1.41 nicm 1047: invalid_index:
1048: if (ambiguous)
1049: goto not_found;
1050: ctx->error(ctx, "invalid index: %s", arg);
1051:
1052: if (sessptr != NULL)
1053: xfree(sessptr);
1054: return (-2);
1055:
1.5 nicm 1056: not_found:
1057: if (ambiguous)
1058: ctx->error(ctx, "multiple windows: %s", arg);
1.1 nicm 1059: else
1.5 nicm 1060: ctx->error(ctx, "window not found: %s", arg);
1061: if (sessptr != NULL)
1062: xfree(sessptr);
1063: return (-2);
1.12 nicm 1064: }
1065:
1.43 nicm 1066: int
1067: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1068: {
1069: int idx, offset = 1;
1070:
1071: if (winptr[1] != '\0')
1072: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1073: if (offset == 0)
1074: idx = cmd_lookup_index(s, winptr, ambiguous);
1075: else {
1076: if (winptr[0] == '+') {
1077: if (s->curw->idx == INT_MAX)
1078: idx = cmd_lookup_index(s, winptr, ambiguous);
1079: else
1080: idx = s->curw->idx + offset;
1081: } else {
1082: if (s->curw->idx == 0)
1083: idx = cmd_lookup_index(s, winptr, ambiguous);
1084: else
1085: idx = s->curw->idx - offset;
1086: }
1087: }
1088:
1089: return (idx);
1090: }
1091:
1.12 nicm 1092: /*
1093: * Find the target session, window and pane number or report an error and
1094: * return NULL. The pane number is separated from the session:window by a .,
1095: * such as mysession:mywindow.0.
1096: */
1097: struct winlink *
1098: cmd_find_pane(struct cmd_ctx *ctx,
1099: const char *arg, struct session **sp, struct window_pane **wpp)
1100: {
1.55 nicm 1101: struct session *s;
1102: struct winlink *wl;
1103: const char *period, *errstr;
1104: char *winptr, *paneptr;
1105: u_int idx;
1.12 nicm 1106:
1107: /* Get the current session. */
1.52 nicm 1108: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.27 deraadt 1109: ctx->error(ctx, "can't establish current session");
1.12 nicm 1110: return (NULL);
1111: }
1112: if (sp != NULL)
1113: *sp = s;
1114:
1115: /* A NULL argument means the current session, window and pane. */
1116: if (arg == NULL) {
1117: *wpp = s->curw->window->active;
1118: return (s->curw);
1.51 nicm 1119: }
1120:
1121: /* Lookup as pane id. */
1122: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 1123: s = cmd_window_session(ctx, (*wpp)->window, &wl);
1.51 nicm 1124: if (sp != NULL)
1125: *sp = s;
1126: return (wl);
1.12 nicm 1127: }
1128:
1129: /* Look for a separating period. */
1130: if ((period = strrchr(arg, '.')) == NULL)
1131: goto no_period;
1132:
1133: /* Pull out the window part and parse it. */
1134: winptr = xstrdup(arg);
1135: winptr[period - arg] = '\0';
1136: if (*winptr == '\0')
1137: wl = s->curw;
1138: else if ((wl = cmd_find_window(ctx, winptr, sp)) == NULL)
1139: goto error;
1140:
1141: /* Find the pane section and look it up. */
1142: paneptr = winptr + (period - arg) + 1;
1143: if (*paneptr == '\0')
1144: *wpp = wl->window->active;
1.43 nicm 1145: else if (paneptr[0] == '+' || paneptr[0] == '-')
1146: *wpp = cmd_find_pane_offset(paneptr, wl);
1147: else {
1.12 nicm 1148: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1149: if (errstr != NULL)
1150: goto lookup_string;
1.12 nicm 1151: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1152: if (*wpp == NULL)
1153: goto lookup_string;
1.12 nicm 1154: }
1155:
1156: xfree(winptr);
1157: return (wl);
1158:
1.36 nicm 1159: lookup_string:
1160: /* Try pane string description. */
1.55 nicm 1161: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.36 nicm 1162: ctx->error(ctx, "can't find pane: %s", paneptr);
1163: goto error;
1164: }
1165:
1166: xfree(winptr);
1.39 nicm 1167: return (wl);
1.36 nicm 1168:
1.12 nicm 1169: no_period:
1170: /* Try as a pane number alone. */
1171: idx = strtonum(arg, 0, INT_MAX, &errstr);
1172: if (errstr != NULL)
1173: goto lookup_window;
1174:
1175: /* Try index in the current session and window. */
1176: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1177: goto lookup_window;
1.35 nicm 1178:
1.12 nicm 1179: return (s->curw);
1180:
1181: lookup_window:
1.36 nicm 1182: /* Try pane string description. */
1.55 nicm 1183: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1184: return (s->curw);
1185:
1.12 nicm 1186: /* Try as a window and use the active pane. */
1187: if ((wl = cmd_find_window(ctx, arg, sp)) != NULL)
1188: *wpp = wl->window->active;
1189: return (wl);
1.35 nicm 1190:
1.12 nicm 1191: error:
1192: xfree(winptr);
1193: return (NULL);
1.43 nicm 1194: }
1195:
1196: struct window_pane *
1197: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1198: {
1199: struct window *w = wl->window;
1200: struct window_pane *wp = w->active;
1201: u_int offset = 1;
1202:
1203: if (paneptr[1] != '\0')
1204: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1205: if (offset > 0) {
1206: if (paneptr[0] == '+')
1207: wp = window_pane_next_by_number(w, wp, offset);
1208: else
1209: wp = window_pane_previous_by_number(w, wp, offset);
1210: }
1211:
1212: return (wp);
1.15 nicm 1213: }
1214:
1215: /* Replace the first %% or %idx in template by s. */
1216: char *
1217: cmd_template_replace(char *template, const char *s, int idx)
1218: {
1219: char ch;
1220: char *buf, *ptr;
1221: int replaced;
1222: size_t len;
1223:
1224: if (strstr(template, "%") == NULL)
1225: return (xstrdup(template));
1226:
1227: buf = xmalloc(1);
1228: *buf = '\0';
1229: len = 0;
1230: replaced = 0;
1231:
1232: ptr = template;
1233: while (*ptr != '\0') {
1234: switch (ch = *ptr++) {
1235: case '%':
1236: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1237: if (*ptr != '%' || replaced)
1238: break;
1239: replaced = 1;
1240: }
1241: ptr++;
1242:
1243: len += strlen(s);
1244: buf = xrealloc(buf, 1, len + 1);
1245: strlcat(buf, s, len + 1);
1246: continue;
1247: }
1248: buf = xrealloc(buf, 1, len + 2);
1249: buf[len++] = ch;
1250: buf[len] = '\0';
1251: }
1252:
1253: return (buf);
1.57 nicm 1254: }
1255:
1.61 nicm 1256: /*
1257: * Return the default path for a new pane, using the given path or the
1258: * default-path option if it is NULL. Several special values are accepted: the
1259: * empty string or relative path for the current pane's working directory, ~
1260: * for the user's home, - for the session working directory, . for the tmux
1261: * server's working directory. The default on failure is the session's working
1262: * directory.
1263: */
1.59 nicm 1264: const char *
1.61 nicm 1265: cmd_get_default_path(struct cmd_ctx *ctx, const char *cwd)
1.57 nicm 1266: {
1267: struct session *s;
1.58 stsp 1268: struct environ_entry *envent;
1.61 nicm 1269: const char *root;
1270: char tmp[MAXPATHLEN];
1271: struct passwd *pw;
1272: int n;
1273: size_t skip;
1274: static char path[MAXPATHLEN];
1.57 nicm 1275:
1276: if ((s = cmd_current_session(ctx, 0)) == NULL)
1277: return (NULL);
1278:
1.61 nicm 1279: if (cwd == NULL)
1280: cwd = options_get_string(&s->options, "default-path");
1281:
1282: skip = 1;
1283: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1284: /* User's home directory - $HOME. */
1285: skip = 5;
1286: goto find_home;
1287: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1288: /* User's home directory - ~. */
1289: goto find_home;
1290: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1291: /* Session working directory. */
1292: root = s->cwd;
1293: goto complete_path;
1.66 nicm 1294: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1295: /* Server working directory. */
1296: if (getcwd(tmp, sizeof tmp) != NULL) {
1297: root = tmp;
1298: goto complete_path;
1.57 nicm 1299: }
1300: return (s->cwd);
1.61 nicm 1301: } else if (*cwd == '/') {
1302: /* Absolute path. */
1303: return (cwd);
1304: } else {
1305: /* Empty or relative path. */
1306: if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
1307: root = ctx->cmdclient->cwd;
1.66 nicm 1308: else if (ctx->curclient != NULL && s->curw != NULL)
1.61 nicm 1309: root = get_proc_cwd(s->curw->window->active->pid);
1310: else
1311: return (s->cwd);
1312: skip = 0;
1.62 nicm 1313: if (root != NULL)
1314: goto complete_path;
1.57 nicm 1315: }
1.61 nicm 1316:
1317: return (s->cwd);
1318:
1319: find_home:
1320: envent = environ_find(&global_environ, "HOME");
1321: if (envent != NULL && *envent->value != '\0')
1322: root = envent->value;
1323: else if ((pw = getpwuid(getuid())) != NULL)
1324: root = pw->pw_dir;
1325: else
1326: return (s->cwd);
1327:
1328: complete_path:
1.65 nicm 1329: if (root[skip] == '\0') {
1330: strlcpy(path, root, sizeof path);
1331: return (path);
1332: }
1.61 nicm 1333: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1334: if (n > 0 && (size_t)n < sizeof path)
1335: return (path);
1336: return (s->cwd);
1.1 nicm 1337: }
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