Annotation of src/usr.bin/tmux/cmd.c, Revision 1.68
1.68 ! nicm 1: /* $OpenBSD: cmd.c,v 1.67 2012/07/08 16:04:38 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;
1.68 ! nicm 201: for (i = 0; i < argc; i++)
! 202: free(argv[i]);
! 203: free(argv);
1.10 nicm 204: }
205:
1.1 nicm 206: struct cmd *
207: cmd_parse(int argc, char **argv, char **cause)
208: {
209: const struct cmd_entry **entryp, *entry;
1.27 deraadt 210: struct cmd *cmd;
1.49 nicm 211: struct args *args;
1.1 nicm 212: char s[BUFSIZ];
1.49 nicm 213: int ambiguous = 0;
1.1 nicm 214:
215: *cause = NULL;
1.2 nicm 216: if (argc == 0) {
217: xasprintf(cause, "no command");
1.1 nicm 218: return (NULL);
1.2 nicm 219: }
1.1 nicm 220:
221: entry = NULL;
222: for (entryp = cmd_table; *entryp != NULL; entryp++) {
223: if ((*entryp)->alias != NULL &&
224: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 225: ambiguous = 0;
1.1 nicm 226: entry = *entryp;
227: break;
228: }
229:
230: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
231: continue;
232: if (entry != NULL)
1.3 nicm 233: ambiguous = 1;
1.1 nicm 234: entry = *entryp;
235:
236: /* Bail now if an exact match. */
237: if (strcmp(entry->name, argv[0]) == 0)
238: break;
239: }
1.3 nicm 240: if (ambiguous)
241: goto ambiguous;
1.1 nicm 242: if (entry == NULL) {
243: xasprintf(cause, "unknown command: %s", argv[0]);
244: return (NULL);
245: }
246:
1.49 nicm 247: args = args_parse(entry->args_template, argc, argv);
248: if (args == NULL)
249: goto usage;
250: if (entry->args_lower != -1 && args->argc < entry->args_lower)
251: goto usage;
252: if (entry->args_upper != -1 && args->argc > entry->args_upper)
253: goto usage;
254: if (entry->check != NULL && entry->check(args) != 0)
255: goto usage;
1.1 nicm 256:
257: cmd = xmalloc(sizeof *cmd);
258: cmd->entry = entry;
1.49 nicm 259: cmd->args = args;
1.1 nicm 260: return (cmd);
261:
262: ambiguous:
263: *s = '\0';
264: for (entryp = cmd_table; *entryp != NULL; entryp++) {
265: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
266: continue;
267: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
268: break;
269: if (strlcat(s, ", ", sizeof s) >= sizeof s)
270: break;
271: }
272: s[strlen(s) - 2] = '\0';
273: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
274: return (NULL);
275:
276: usage:
1.49 nicm 277: if (args != NULL)
278: args_free(args);
1.1 nicm 279: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
280: return (NULL);
281: }
282:
283: int
284: cmd_exec(struct cmd *cmd, struct cmd_ctx *ctx)
285: {
286: return (cmd->entry->exec(cmd, ctx));
287: }
288:
289: void
290: cmd_free(struct cmd *cmd)
291: {
1.68 ! nicm 292: args_free(cmd->args);
! 293: free(cmd);
1.1 nicm 294: }
295:
296: size_t
297: cmd_print(struct cmd *cmd, char *buf, size_t len)
298: {
1.49 nicm 299: size_t off, used;
300:
301: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
302: if (off < len) {
303: used = args_print(cmd->args, buf + off, len - off);
304: if (used == 0)
1.64 nicm 305: off--;
306: else
1.49 nicm 307: off += used;
1.64 nicm 308: buf[off] = '\0';
1.49 nicm 309: }
310: return (off);
1.1 nicm 311: }
312:
1.5 nicm 313: /*
314: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 315: * context has one; 2) the most recently used session containing the pty of the
316: * calling client, if any; 3) the session specified in the TMUX variable from
317: * the environment (as passed from the client); 4) the most recently used
318: * session from all sessions.
1.5 nicm 319: */
1.1 nicm 320: struct session *
1.52 nicm 321: cmd_current_session(struct cmd_ctx *ctx, int prefer_unattached)
1.1 nicm 322: {
323: struct msg_command_data *data = ctx->msgdata;
1.11 nicm 324: struct client *c = ctx->cmdclient;
1.5 nicm 325: struct session *s;
1.47 nicm 326: struct sessionslist ss;
1.11 nicm 327: struct winlink *wl;
328: struct window_pane *wp;
329: int found;
1.1 nicm 330:
1.14 nicm 331: if (ctx->curclient != NULL && ctx->curclient->session != NULL)
332: return (ctx->curclient->session);
1.1 nicm 333:
1.11 nicm 334: /*
335: * If the name of the calling client's pty is know, build a list of the
336: * sessions that contain it and if any choose either the first or the
337: * newest.
338: */
339: if (c != NULL && c->tty.path != NULL) {
340: ARRAY_INIT(&ss);
1.47 nicm 341: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 342: found = 0;
343: RB_FOREACH(wl, winlinks, &s->windows) {
344: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
345: if (strcmp(wp->tty, c->tty.path) == 0) {
346: found = 1;
347: break;
348: }
349: }
350: if (found)
351: break;
352: }
353: if (found)
354: ARRAY_ADD(&ss, s);
355: }
356:
1.47 nicm 357: s = cmd_choose_session_list(&ss);
1.11 nicm 358: ARRAY_FREE(&ss);
359: if (s != NULL)
360: return (s);
361: }
362:
363: /* Use the session from the TMUX environment variable. */
1.50 nicm 364: if (data != NULL && data->pid == getpid() && data->idx != -1) {
1.47 nicm 365: s = session_find_by_index(data->idx);
366: if (s != NULL)
367: return (s);
368: }
369:
1.52 nicm 370: return (cmd_choose_session(prefer_unattached));
1.47 nicm 371: }
372:
1.52 nicm 373: /*
374: * Find the most recently used session, preferring unattached if the flag is
375: * set.
376: */
1.47 nicm 377: struct session *
1.52 nicm 378: cmd_choose_session(int prefer_unattached)
1.47 nicm 379: {
380: struct session *s, *sbest;
381: struct timeval *tv = NULL;
382:
383: sbest = NULL;
384: RB_FOREACH(s, sessions, &sessions) {
1.52 nicm 385: if (tv == NULL || timercmp(&s->activity_time, tv, >) ||
386: (prefer_unattached &&
387: !(sbest->flags & SESSION_UNATTACHED) &&
388: (s->flags & SESSION_UNATTACHED))) {
1.47 nicm 389: sbest = s;
390: tv = &s->activity_time;
391: }
392: }
1.1 nicm 393:
1.47 nicm 394: return (sbest);
1.5 nicm 395: }
396:
1.31 nicm 397: /* Find the most recently used session from a list. */
1.5 nicm 398: struct session *
1.47 nicm 399: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 400: {
1.31 nicm 401: struct session *s, *sbest;
1.5 nicm 402: struct timeval *tv = NULL;
403: u_int i;
404:
1.31 nicm 405: sbest = NULL;
1.11 nicm 406: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
407: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 408: continue;
409:
1.31 nicm 410: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
411: sbest = s;
412: tv = &s->activity_time;
1.1 nicm 413: }
414: }
1.5 nicm 415:
1.31 nicm 416: return (sbest);
1.1 nicm 417: }
418:
1.30 nicm 419: /*
420: * Find the current client. First try the current client if set, then pick the
1.31 nicm 421: * most recently used of the clients attached to the current session if any,
422: * then of all clients.
1.30 nicm 423: */
424: struct client *
425: cmd_current_client(struct cmd_ctx *ctx)
426: {
427: struct session *s;
428: struct client *c;
429: struct clients cc;
430: u_int i;
431:
432: if (ctx->curclient != NULL)
433: return (ctx->curclient);
434:
435: /*
436: * No current client set. Find the current session and return the
437: * newest of its clients.
438: */
1.52 nicm 439: s = cmd_current_session(ctx, 0);
1.30 nicm 440: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
441: ARRAY_INIT(&cc);
442: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
443: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
444: continue;
445: if (s == c->session)
446: ARRAY_ADD(&cc, c);
447: }
448:
1.31 nicm 449: c = cmd_choose_client(&cc);
1.30 nicm 450: ARRAY_FREE(&cc);
451: if (c != NULL)
452: return (c);
453: }
454:
1.31 nicm 455: return (cmd_choose_client(&clients));
1.30 nicm 456: }
457:
1.31 nicm 458: /* Choose the most recently used client from a list. */
1.20 nicm 459: struct client *
1.31 nicm 460: cmd_choose_client(struct clients *cc)
1.20 nicm 461: {
1.31 nicm 462: struct client *c, *cbest;
1.20 nicm 463: struct timeval *tv = NULL;
464: u_int i;
465:
1.31 nicm 466: cbest = NULL;
1.30 nicm 467: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
468: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 469: continue;
470: if (c->session == NULL)
471: continue;
472:
1.31 nicm 473: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
474: cbest = c;
475: tv = &c->activity_time;
1.20 nicm 476: }
477: }
478:
1.31 nicm 479: return (cbest);
1.20 nicm 480: }
481:
1.5 nicm 482: /* Find the target client or report an error and return NULL. */
1.1 nicm 483: struct client *
484: cmd_find_client(struct cmd_ctx *ctx, const char *arg)
485: {
1.30 nicm 486: struct client *c;
1.5 nicm 487: char *tmparg;
488: size_t arglen;
1.1 nicm 489:
1.5 nicm 490: /* A NULL argument means the current client. */
1.30 nicm 491: if (arg == NULL)
492: return (cmd_current_client(ctx));
1.5 nicm 493: tmparg = xstrdup(arg);
494:
495: /* Trim a single trailing colon if any. */
496: arglen = strlen(tmparg);
497: if (arglen != 0 && tmparg[arglen - 1] == ':')
498: tmparg[arglen - 1] = '\0';
499:
500: /* Find the client, if any. */
501: c = cmd_lookup_client(tmparg);
502:
503: /* If no client found, report an error. */
504: if (c == NULL)
505: ctx->error(ctx, "client not found: %s", tmparg);
506:
1.68 ! nicm 507: free(tmparg);
1.5 nicm 508: return (c);
509: }
510:
511: /*
512: * Lookup a client by device path. Either of a full match and a match without a
513: * leading _PATH_DEV ("/dev/") is accepted.
514: */
515: struct client *
516: cmd_lookup_client(const char *name)
517: {
518: struct client *c;
519: const char *path;
520: u_int i;
521:
522: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 523: c = ARRAY_ITEM(&clients, i);
524: if (c == NULL || c->session == NULL)
1.5 nicm 525: continue;
526: path = c->tty.path;
527:
528: /* Check for exact matches. */
529: if (strcmp(name, path) == 0)
530: return (c);
531:
532: /* Check without leading /dev if present. */
533: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
534: continue;
535: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
536: return (c);
537: }
538:
539: return (NULL);
540: }
541:
542: /* Lookup a session by name. If no session is found, NULL is returned. */
543: struct session *
544: cmd_lookup_session(const char *name, int *ambiguous)
545: {
546: struct session *s, *sfound;
547:
548: *ambiguous = 0;
549:
550: /*
1.28 nicm 551: * Look for matches. First look for exact matches - session names must
552: * be unique so an exact match can't be ambigious and can just be
553: * returned.
1.5 nicm 554: */
1.47 nicm 555: if ((s = session_find(name)) != NULL)
556: return (s);
1.28 nicm 557:
558: /*
559: * Otherwise look for partial matches, returning early if it is found to
560: * be ambiguous.
561: */
562: sfound = NULL;
1.47 nicm 563: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 564: if (strncmp(name, s->name, strlen(name)) == 0 ||
565: fnmatch(name, s->name, 0) == 0) {
566: if (sfound != NULL) {
567: *ambiguous = 1;
568: return (NULL);
569: }
570: sfound = s;
571: }
572: }
1.35 nicm 573: return (sfound);
1.5 nicm 574: }
575:
576: /*
1.8 nicm 577: * Lookup a window or return -1 if not found or ambigious. First try as an
578: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 579: * idx if the window index is a valid number but there is no window with that
1.8 nicm 580: * index.
1.5 nicm 581: */
582: struct winlink *
583: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
584: {
585: struct winlink *wl, *wlfound;
586: const char *errstr;
587: u_int idx;
588:
589: *ambiguous = 0;
590:
1.60 nicm 591: /* Try as a window id. */
592: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
593: return (wl);
594:
1.5 nicm 595: /* First see if this is a valid window index in this session. */
596: idx = strtonum(name, 0, INT_MAX, &errstr);
597: if (errstr == NULL) {
598: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
599: return (wl);
600: }
1.35 nicm 601:
1.5 nicm 602: /* Look for exact matches, error if more than one. */
603: wlfound = NULL;
604: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 605: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 606: if (wlfound != NULL) {
607: *ambiguous = 1;
608: return (NULL);
609: }
610: wlfound = wl;
1.1 nicm 611: }
612: }
1.5 nicm 613: if (wlfound != NULL)
614: return (wlfound);
615:
616: /* Now look for pattern matches, again error if multiple. */
617: wlfound = NULL;
618: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 619: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
620: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 621: if (wlfound != NULL) {
622: *ambiguous = 1;
623: return (NULL);
624: }
625: wlfound = wl;
626: }
1.35 nicm 627: }
1.5 nicm 628: if (wlfound != NULL)
629: return (wlfound);
630:
631: return (NULL);
1.1 nicm 632: }
633:
1.8 nicm 634: /*
635: * Find a window index - if the window doesn't exist, check if it is a
636: * potential index and return it anyway.
637: */
638: int
639: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
640: {
641: struct winlink *wl;
642: const char *errstr;
643: u_int idx;
644:
645: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
646: return (wl->idx);
647: if (*ambiguous)
648: return (-1);
649:
650: idx = strtonum(name, 0, INT_MAX, &errstr);
651: if (errstr == NULL)
652: return (idx);
653:
654: return (-1);
655: }
656:
1.60 nicm 657: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 658: struct window_pane *
659: cmd_lookup_paneid(const char *arg)
660: {
661: const char *errstr;
662: u_int paneid;
663:
664: if (*arg != '%')
665: return (NULL);
666:
667: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
668: if (errstr != NULL)
669: return (NULL);
670: return (window_pane_find_by_id(paneid));
671: }
672:
1.60 nicm 673: /* Lookup window id in a session. An initial @ means a window id. */
674: struct winlink *
675: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
676: {
677: const char *errstr;
678: u_int windowid;
679:
680: if (*arg != '@')
681: return (NULL);
682:
683: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
684: if (errstr != NULL)
685: return (NULL);
686: return (winlink_find_by_window_id(&s->windows, windowid));
687: }
688:
689: /* Lookup window id. An initial @ means a window id. */
690: struct window *
691: cmd_lookup_windowid(const char *arg)
692: {
693: const char *errstr;
694: u_int windowid;
695:
696: if (*arg != '@')
697: return (NULL);
698:
699: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
700: if (errstr != NULL)
701: return (NULL);
702: return (window_find_by_id(windowid));
703: }
704:
705: /* Find session and winlink for window. */
1.51 nicm 706: struct session *
1.60 nicm 707: cmd_window_session(struct cmd_ctx *ctx, struct window *w, struct winlink **wlp)
1.51 nicm 708: {
709: struct session *s;
710: struct sessionslist ss;
711: struct winlink *wl;
712:
1.60 nicm 713: /* If this window is in the current session, return that winlink. */
1.52 nicm 714: s = cmd_current_session(ctx, 0);
1.51 nicm 715: if (s != NULL) {
1.60 nicm 716: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 717: if (wl != NULL) {
718: if (wlp != NULL)
719: *wlp = wl;
720: return (s);
721: }
722: }
723:
1.60 nicm 724: /* Otherwise choose from all sessions with this window. */
1.51 nicm 725: ARRAY_INIT(&ss);
726: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 727: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 728: ARRAY_ADD(&ss, s);
729: }
730: s = cmd_choose_session_list(&ss);
731: ARRAY_FREE(&ss);
732: if (wlp != NULL)
1.60 nicm 733: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 734: return (s);
735: }
736:
1.5 nicm 737: /* Find the target session or report an error and return NULL. */
1.1 nicm 738: struct session *
1.52 nicm 739: cmd_find_session(struct cmd_ctx *ctx, const char *arg, int prefer_unattached)
1.1 nicm 740: {
1.51 nicm 741: struct session *s;
742: struct window_pane *wp;
1.60 nicm 743: struct window *w;
1.51 nicm 744: struct client *c;
745: char *tmparg;
746: size_t arglen;
747: int ambiguous;
1.1 nicm 748:
1.5 nicm 749: /* A NULL argument means the current session. */
1.1 nicm 750: if (arg == NULL)
1.52 nicm 751: return (cmd_current_session(ctx, prefer_unattached));
1.5 nicm 752:
1.60 nicm 753: /* Lookup as pane id or window id. */
1.51 nicm 754: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.60 nicm 755: return (cmd_window_session(ctx, wp->window, NULL));
756: if ((w = cmd_lookup_windowid(arg)) != NULL)
757: return (cmd_window_session(ctx, w, NULL));
1.51 nicm 758:
1.5 nicm 759: /* Trim a single trailing colon if any. */
1.54 nicm 760: tmparg = xstrdup(arg);
1.5 nicm 761: arglen = strlen(tmparg);
762: if (arglen != 0 && tmparg[arglen - 1] == ':')
763: tmparg[arglen - 1] = '\0';
764:
1.53 nicm 765: /* An empty session name is the current session. */
766: if (*tmparg == '\0') {
1.68 ! nicm 767: free(tmparg);
1.53 nicm 768: return (cmd_current_session(ctx, prefer_unattached));
769: }
770:
1.5 nicm 771: /* Find the session, if any. */
772: s = cmd_lookup_session(tmparg, &ambiguous);
773:
774: /* If it doesn't, try to match it as a client. */
775: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
776: s = c->session;
777:
778: /* If no session found, report an error. */
779: if (s == NULL) {
780: if (ambiguous)
781: ctx->error(ctx, "more than one session: %s", tmparg);
782: else
783: ctx->error(ctx, "session not found: %s", tmparg);
1.1 nicm 784: }
1.5 nicm 785:
1.68 ! nicm 786: free(tmparg);
1.1 nicm 787: return (s);
788: }
789:
1.5 nicm 790: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 791: struct winlink *
792: cmd_find_window(struct cmd_ctx *ctx, const char *arg, struct session **sp)
793: {
1.51 nicm 794: struct session *s;
795: struct winlink *wl;
796: struct window_pane *wp;
797: const char *winptr;
798: char *sessptr = NULL;
799: int ambiguous = 0;
1.5 nicm 800:
801: /*
802: * Find the current session. There must always be a current session, if
803: * it can't be found, report an error.
804: */
1.52 nicm 805: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 806: ctx->error(ctx, "can't establish current session");
807: return (NULL);
808: }
809:
810: /* A NULL argument means the current session and window. */
811: if (arg == NULL) {
812: if (sp != NULL)
813: *sp = s;
814: return (s->curw);
815: }
816:
1.51 nicm 817: /* Lookup as pane id. */
818: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 819: s = cmd_window_session(ctx, wp->window, &wl);
1.51 nicm 820: if (sp != NULL)
821: *sp = s;
822: return (wl);
823: }
824:
1.5 nicm 825: /* Time to look at the argument. If it is empty, that is an error. */
826: if (*arg == '\0')
827: goto not_found;
828:
1.8 nicm 829: /* Find the separating colon and split into window and session. */
1.5 nicm 830: winptr = strchr(arg, ':');
831: if (winptr == NULL)
1.8 nicm 832: goto no_colon;
833: winptr++; /* skip : */
834: sessptr = xstrdup(arg);
835: *strchr(sessptr, ':') = '\0';
1.5 nicm 836:
837: /* Try to lookup the session if present. */
1.8 nicm 838: if (*sessptr != '\0') {
839: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 840: goto no_session;
841: }
842: if (sp != NULL)
843: *sp = s;
844:
845: /*
846: * Then work out the window. An empty string is the current window,
1.38 nicm 847: * otherwise try special cases then to look it up in the session.
1.5 nicm 848: */
1.8 nicm 849: if (*winptr == '\0')
1.5 nicm 850: wl = s->curw;
1.38 nicm 851: else if (winptr[0] == '!' && winptr[1] == '\0')
852: wl = TAILQ_FIRST(&s->lastw);
1.43 nicm 853: else if (winptr[0] == '+' || winptr[0] == '-')
854: wl = cmd_find_window_offset(winptr, s, &ambiguous);
855: else
1.38 nicm 856: wl = cmd_lookup_window(s, winptr, &ambiguous);
857: if (wl == NULL)
1.5 nicm 858: goto not_found;
1.35 nicm 859:
1.5 nicm 860: if (sessptr != NULL)
1.68 ! nicm 861: free(sessptr);
1.5 nicm 862: return (wl);
863:
1.8 nicm 864: no_colon:
1.38 nicm 865: /*
866: * No colon in the string, first try special cases, then as a window
867: * and lastly as a session.
868: */
869: if (arg[0] == '!' && arg[1] == '\0') {
870: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
871: goto not_found;
1.41 nicm 872: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 873: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 874: goto lookup_session;
875: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
876: goto lookup_session;
1.8 nicm 877:
878: if (sp != NULL)
879: *sp = s;
880:
881: return (wl);
882:
1.41 nicm 883: lookup_session:
884: if (ambiguous)
885: goto not_found;
1.53 nicm 886: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 887: goto no_session;
888:
889: if (sp != NULL)
890: *sp = s;
891:
892: return (s->curw);
893:
1.5 nicm 894: no_session:
895: if (ambiguous)
1.8 nicm 896: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 897: else
1.8 nicm 898: ctx->error(ctx, "session not found: %s", arg);
1.68 ! nicm 899: free(sessptr);
1.5 nicm 900: return (NULL);
901:
902: not_found:
903: if (ambiguous)
904: ctx->error(ctx, "multiple windows: %s", arg);
905: else
906: ctx->error(ctx, "window not found: %s", arg);
1.68 ! nicm 907: free(sessptr);
1.5 nicm 908: return (NULL);
909: }
1.1 nicm 910:
1.43 nicm 911: struct winlink *
912: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
913: {
914: struct winlink *wl;
915: int offset = 1;
916:
917: if (winptr[1] != '\0')
918: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
919: if (offset == 0)
920: wl = cmd_lookup_window(s, winptr, ambiguous);
921: else {
922: if (winptr[0] == '+')
923: wl = winlink_next_by_number(s->curw, s, offset);
924: else
925: wl = winlink_previous_by_number(s->curw, s, offset);
926: }
927:
928: return (wl);
929: }
930:
1.5 nicm 931: /*
932: * Find the target session and window index, whether or not it exists in the
933: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 934: * used when parsing an argument for a window target that may not exist (for
935: * example if it is going to be created).
1.5 nicm 936: */
937: int
938: cmd_find_index(struct cmd_ctx *ctx, const char *arg, struct session **sp)
939: {
940: struct session *s;
1.38 nicm 941: struct winlink *wl;
1.8 nicm 942: const char *winptr;
1.5 nicm 943: char *sessptr = NULL;
944: int idx, ambiguous = 0;
945:
946: /*
947: * Find the current session. There must always be a current session, if
948: * it can't be found, report an error.
949: */
1.52 nicm 950: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 951: ctx->error(ctx, "can't establish current session");
1.9 nicm 952: return (-2);
1.1 nicm 953: }
1.5 nicm 954:
955: /* A NULL argument means the current session and "no window" (-1). */
956: if (arg == NULL) {
957: if (sp != NULL)
958: *sp = s;
959: return (-1);
960: }
961:
962: /* Time to look at the argument. If it is empty, that is an error. */
963: if (*arg == '\0')
964: goto not_found;
965:
966: /* Find the separating colon. If none, assume the current session. */
967: winptr = strchr(arg, ':');
968: if (winptr == NULL)
1.8 nicm 969: goto no_colon;
970: winptr++; /* skip : */
971: sessptr = xstrdup(arg);
972: *strchr(sessptr, ':') = '\0';
1.5 nicm 973:
974: /* Try to lookup the session if present. */
975: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 976: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 977: goto no_session;
978: }
1.1 nicm 979: if (sp != NULL)
980: *sp = s;
981:
1.5 nicm 982: /*
1.8 nicm 983: * Then work out the window. An empty string is a new window otherwise
984: * try to look it up in the session.
1.5 nicm 985: */
1.8 nicm 986: if (*winptr == '\0')
1.38 nicm 987: idx = -1;
988: else if (winptr[0] == '!' && winptr[1] == '\0') {
989: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
990: goto not_found;
991: idx = wl->idx;
1.41 nicm 992: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 993: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 994: goto invalid_index;
995: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
996: goto invalid_index;
1.35 nicm 997:
1.68 ! nicm 998: free(sessptr);
1.5 nicm 999: return (idx);
1000:
1.8 nicm 1001: no_colon:
1.38 nicm 1002: /*
1003: * No colon in the string, first try special cases, then as a window
1004: * and lastly as a session.
1005: */
1006: if (arg[0] == '!' && arg[1] == '\0') {
1007: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1008: goto not_found;
1009: idx = wl->idx;
1.41 nicm 1010: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1011: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1012: goto lookup_session;
1013: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1014: goto lookup_session;
1.8 nicm 1015:
1016: if (sp != NULL)
1017: *sp = s;
1018:
1019: return (idx);
1020:
1.41 nicm 1021: lookup_session:
1022: if (ambiguous)
1023: goto not_found;
1.53 nicm 1024: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1025: goto no_session;
1026:
1027: if (sp != NULL)
1028: *sp = s;
1029:
1030: return (-1);
1031:
1.5 nicm 1032: no_session:
1033: if (ambiguous)
1.35 nicm 1034: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 1035: else
1.8 nicm 1036: ctx->error(ctx, "session not found: %s", arg);
1.68 ! nicm 1037: free(sessptr);
1.5 nicm 1038: return (-2);
1039:
1.41 nicm 1040: invalid_index:
1041: if (ambiguous)
1042: goto not_found;
1043: ctx->error(ctx, "invalid index: %s", arg);
1044:
1.68 ! nicm 1045: free(sessptr);
1.41 nicm 1046: return (-2);
1047:
1.5 nicm 1048: not_found:
1049: if (ambiguous)
1050: ctx->error(ctx, "multiple windows: %s", arg);
1.1 nicm 1051: else
1.5 nicm 1052: ctx->error(ctx, "window not found: %s", arg);
1.68 ! nicm 1053: free(sessptr);
1.5 nicm 1054: return (-2);
1.12 nicm 1055: }
1056:
1.43 nicm 1057: int
1058: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1059: {
1060: int idx, offset = 1;
1061:
1062: if (winptr[1] != '\0')
1063: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1064: if (offset == 0)
1065: idx = cmd_lookup_index(s, winptr, ambiguous);
1066: else {
1067: if (winptr[0] == '+') {
1068: if (s->curw->idx == INT_MAX)
1069: idx = cmd_lookup_index(s, winptr, ambiguous);
1070: else
1071: idx = s->curw->idx + offset;
1072: } else {
1073: if (s->curw->idx == 0)
1074: idx = cmd_lookup_index(s, winptr, ambiguous);
1075: else
1076: idx = s->curw->idx - offset;
1077: }
1078: }
1079:
1080: return (idx);
1081: }
1082:
1.12 nicm 1083: /*
1084: * Find the target session, window and pane number or report an error and
1085: * return NULL. The pane number is separated from the session:window by a .,
1086: * such as mysession:mywindow.0.
1087: */
1088: struct winlink *
1089: cmd_find_pane(struct cmd_ctx *ctx,
1090: const char *arg, struct session **sp, struct window_pane **wpp)
1091: {
1.55 nicm 1092: struct session *s;
1093: struct winlink *wl;
1094: const char *period, *errstr;
1095: char *winptr, *paneptr;
1096: u_int idx;
1.12 nicm 1097:
1098: /* Get the current session. */
1.52 nicm 1099: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.27 deraadt 1100: ctx->error(ctx, "can't establish current session");
1.12 nicm 1101: return (NULL);
1102: }
1103: if (sp != NULL)
1104: *sp = s;
1105:
1106: /* A NULL argument means the current session, window and pane. */
1107: if (arg == NULL) {
1108: *wpp = s->curw->window->active;
1109: return (s->curw);
1.51 nicm 1110: }
1111:
1112: /* Lookup as pane id. */
1113: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 1114: s = cmd_window_session(ctx, (*wpp)->window, &wl);
1.51 nicm 1115: if (sp != NULL)
1116: *sp = s;
1117: return (wl);
1.12 nicm 1118: }
1119:
1120: /* Look for a separating period. */
1121: if ((period = strrchr(arg, '.')) == NULL)
1122: goto no_period;
1123:
1124: /* Pull out the window part and parse it. */
1125: winptr = xstrdup(arg);
1126: winptr[period - arg] = '\0';
1127: if (*winptr == '\0')
1128: wl = s->curw;
1129: else if ((wl = cmd_find_window(ctx, winptr, sp)) == NULL)
1130: goto error;
1131:
1132: /* Find the pane section and look it up. */
1133: paneptr = winptr + (period - arg) + 1;
1134: if (*paneptr == '\0')
1135: *wpp = wl->window->active;
1.43 nicm 1136: else if (paneptr[0] == '+' || paneptr[0] == '-')
1137: *wpp = cmd_find_pane_offset(paneptr, wl);
1138: else {
1.12 nicm 1139: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1140: if (errstr != NULL)
1141: goto lookup_string;
1.12 nicm 1142: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1143: if (*wpp == NULL)
1144: goto lookup_string;
1.12 nicm 1145: }
1146:
1.68 ! nicm 1147: free(winptr);
1.12 nicm 1148: return (wl);
1149:
1.36 nicm 1150: lookup_string:
1151: /* Try pane string description. */
1.55 nicm 1152: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.36 nicm 1153: ctx->error(ctx, "can't find pane: %s", paneptr);
1154: goto error;
1155: }
1156:
1.68 ! nicm 1157: free(winptr);
1.39 nicm 1158: return (wl);
1.36 nicm 1159:
1.12 nicm 1160: no_period:
1161: /* Try as a pane number alone. */
1162: idx = strtonum(arg, 0, INT_MAX, &errstr);
1163: if (errstr != NULL)
1164: goto lookup_window;
1165:
1166: /* Try index in the current session and window. */
1167: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1168: goto lookup_window;
1.35 nicm 1169:
1.12 nicm 1170: return (s->curw);
1171:
1172: lookup_window:
1.36 nicm 1173: /* Try pane string description. */
1.55 nicm 1174: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1175: return (s->curw);
1176:
1.12 nicm 1177: /* Try as a window and use the active pane. */
1178: if ((wl = cmd_find_window(ctx, arg, sp)) != NULL)
1179: *wpp = wl->window->active;
1180: return (wl);
1.35 nicm 1181:
1.12 nicm 1182: error:
1.68 ! nicm 1183: free(winptr);
1.12 nicm 1184: return (NULL);
1.43 nicm 1185: }
1186:
1187: struct window_pane *
1188: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1189: {
1190: struct window *w = wl->window;
1191: struct window_pane *wp = w->active;
1192: u_int offset = 1;
1193:
1194: if (paneptr[1] != '\0')
1195: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1196: if (offset > 0) {
1197: if (paneptr[0] == '+')
1198: wp = window_pane_next_by_number(w, wp, offset);
1199: else
1200: wp = window_pane_previous_by_number(w, wp, offset);
1201: }
1202:
1203: return (wp);
1.15 nicm 1204: }
1205:
1206: /* Replace the first %% or %idx in template by s. */
1207: char *
1208: cmd_template_replace(char *template, const char *s, int idx)
1209: {
1210: char ch;
1211: char *buf, *ptr;
1212: int replaced;
1213: size_t len;
1214:
1215: if (strstr(template, "%") == NULL)
1216: return (xstrdup(template));
1217:
1218: buf = xmalloc(1);
1219: *buf = '\0';
1220: len = 0;
1221: replaced = 0;
1222:
1223: ptr = template;
1224: while (*ptr != '\0') {
1225: switch (ch = *ptr++) {
1226: case '%':
1227: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1228: if (*ptr != '%' || replaced)
1229: break;
1230: replaced = 1;
1231: }
1232: ptr++;
1233:
1234: len += strlen(s);
1235: buf = xrealloc(buf, 1, len + 1);
1236: strlcat(buf, s, len + 1);
1237: continue;
1238: }
1239: buf = xrealloc(buf, 1, len + 2);
1240: buf[len++] = ch;
1241: buf[len] = '\0';
1242: }
1243:
1244: return (buf);
1.57 nicm 1245: }
1246:
1.61 nicm 1247: /*
1248: * Return the default path for a new pane, using the given path or the
1249: * default-path option if it is NULL. Several special values are accepted: the
1250: * empty string or relative path for the current pane's working directory, ~
1251: * for the user's home, - for the session working directory, . for the tmux
1252: * server's working directory. The default on failure is the session's working
1253: * directory.
1254: */
1.59 nicm 1255: const char *
1.61 nicm 1256: cmd_get_default_path(struct cmd_ctx *ctx, const char *cwd)
1.57 nicm 1257: {
1258: struct session *s;
1.58 stsp 1259: struct environ_entry *envent;
1.61 nicm 1260: const char *root;
1261: char tmp[MAXPATHLEN];
1262: struct passwd *pw;
1263: int n;
1264: size_t skip;
1265: static char path[MAXPATHLEN];
1.57 nicm 1266:
1267: if ((s = cmd_current_session(ctx, 0)) == NULL)
1268: return (NULL);
1269:
1.61 nicm 1270: if (cwd == NULL)
1271: cwd = options_get_string(&s->options, "default-path");
1272:
1273: skip = 1;
1274: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1275: /* User's home directory - $HOME. */
1276: skip = 5;
1277: goto find_home;
1278: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1279: /* User's home directory - ~. */
1280: goto find_home;
1281: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1282: /* Session working directory. */
1283: root = s->cwd;
1284: goto complete_path;
1.66 nicm 1285: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1286: /* Server working directory. */
1287: if (getcwd(tmp, sizeof tmp) != NULL) {
1288: root = tmp;
1289: goto complete_path;
1.57 nicm 1290: }
1291: return (s->cwd);
1.61 nicm 1292: } else if (*cwd == '/') {
1293: /* Absolute path. */
1294: return (cwd);
1295: } else {
1296: /* Empty or relative path. */
1297: if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
1298: root = ctx->cmdclient->cwd;
1.66 nicm 1299: else if (ctx->curclient != NULL && s->curw != NULL)
1.61 nicm 1300: root = get_proc_cwd(s->curw->window->active->pid);
1301: else
1302: return (s->cwd);
1303: skip = 0;
1.62 nicm 1304: if (root != NULL)
1305: goto complete_path;
1.57 nicm 1306: }
1.61 nicm 1307:
1308: return (s->cwd);
1309:
1310: find_home:
1311: envent = environ_find(&global_environ, "HOME");
1312: if (envent != NULL && *envent->value != '\0')
1313: root = envent->value;
1314: else if ((pw = getpwuid(getuid())) != NULL)
1315: root = pw->pw_dir;
1316: else
1317: return (s->cwd);
1318:
1319: complete_path:
1.65 nicm 1320: if (root[skip] == '\0') {
1321: strlcpy(path, root, sizeof path);
1322: return (path);
1323: }
1.61 nicm 1324: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1325: if (n > 0 && (size_t)n < sizeof path)
1326: return (path);
1327: return (s->cwd);
1.1 nicm 1328: }
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