Annotation of src/usr.bin/tmux/cmd.c, Revision 1.74
1.74 ! nicm 1: /* $OpenBSD: cmd.c,v 1.73 2012/12/24 12:38:57 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:
1.10 nicm 136: int
137: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
138: {
139: size_t arglen;
140: int i;
141:
142: *buf = '\0';
143: for (i = 0; i < argc; i++) {
144: if (strlcpy(buf, argv[i], len) >= len)
145: return (-1);
146: arglen = strlen(argv[i]) + 1;
147: buf += arglen;
148: len -= arglen;
149: }
150:
151: return (0);
152: }
153:
154: int
155: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
156: {
157: int i;
158: size_t arglen;
159:
160: if (argc == 0)
161: return (0);
162: *argv = xcalloc(argc, sizeof **argv);
163:
164: buf[len - 1] = '\0';
165: for (i = 0; i < argc; i++) {
166: if (len == 0) {
167: cmd_free_argv(argc, *argv);
168: return (-1);
169: }
170:
171: arglen = strlen(buf) + 1;
172: (*argv)[i] = xstrdup(buf);
173: buf += arglen;
174: len -= arglen;
175: }
176:
177: return (0);
1.46 nicm 178: }
179:
180: char **
1.49 nicm 181: cmd_copy_argv(int argc, char *const *argv)
1.46 nicm 182: {
183: char **new_argv;
184: int i;
185:
186: if (argc == 0)
187: return (NULL);
188: new_argv = xcalloc(argc, sizeof *new_argv);
189: for (i = 0; i < argc; i++) {
190: if (argv[i] != NULL)
191: new_argv[i] = xstrdup(argv[i]);
192: }
193: return (new_argv);
1.10 nicm 194: }
195:
196: void
197: cmd_free_argv(int argc, char **argv)
198: {
199: int i;
200:
201: if (argc == 0)
1.35 nicm 202: return;
1.68 nicm 203: for (i = 0; i < argc; i++)
204: free(argv[i]);
205: free(argv);
1.10 nicm 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:
1.69 nicm 285: enum cmd_retval
1.1 nicm 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: {
1.68 nicm 294: args_free(cmd->args);
295: free(cmd);
1.1 nicm 296: }
297:
298: size_t
299: cmd_print(struct cmd *cmd, char *buf, size_t len)
300: {
1.49 nicm 301: size_t off, used;
302:
303: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
304: if (off < len) {
305: used = args_print(cmd->args, buf + off, len - off);
306: if (used == 0)
1.64 nicm 307: off--;
308: else
1.49 nicm 309: off += used;
1.64 nicm 310: buf[off] = '\0';
1.49 nicm 311: }
312: return (off);
1.1 nicm 313: }
314:
1.5 nicm 315: /*
316: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 317: * context has one; 2) the most recently used session containing the pty of the
318: * calling client, if any; 3) the session specified in the TMUX variable from
319: * the environment (as passed from the client); 4) the most recently used
320: * session from all sessions.
1.5 nicm 321: */
1.1 nicm 322: struct session *
1.52 nicm 323: cmd_current_session(struct cmd_ctx *ctx, int prefer_unattached)
1.1 nicm 324: {
325: struct msg_command_data *data = ctx->msgdata;
1.11 nicm 326: struct client *c = ctx->cmdclient;
1.5 nicm 327: struct session *s;
1.47 nicm 328: struct sessionslist ss;
1.11 nicm 329: struct winlink *wl;
330: struct window_pane *wp;
331: int found;
1.1 nicm 332:
1.14 nicm 333: if (ctx->curclient != NULL && ctx->curclient->session != NULL)
334: return (ctx->curclient->session);
1.1 nicm 335:
1.11 nicm 336: /*
337: * If the name of the calling client's pty is know, build a list of the
338: * sessions that contain it and if any choose either the first or the
339: * newest.
340: */
341: if (c != NULL && c->tty.path != NULL) {
342: ARRAY_INIT(&ss);
1.47 nicm 343: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 344: found = 0;
345: RB_FOREACH(wl, winlinks, &s->windows) {
346: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
347: if (strcmp(wp->tty, c->tty.path) == 0) {
348: found = 1;
349: break;
350: }
351: }
352: if (found)
353: break;
354: }
355: if (found)
356: ARRAY_ADD(&ss, s);
357: }
358:
1.47 nicm 359: s = cmd_choose_session_list(&ss);
1.11 nicm 360: ARRAY_FREE(&ss);
361: if (s != NULL)
362: return (s);
363: }
364:
365: /* Use the session from the TMUX environment variable. */
1.50 nicm 366: if (data != NULL && data->pid == getpid() && data->idx != -1) {
1.47 nicm 367: s = session_find_by_index(data->idx);
368: if (s != NULL)
369: return (s);
370: }
371:
1.52 nicm 372: return (cmd_choose_session(prefer_unattached));
1.47 nicm 373: }
374:
1.72 nicm 375: /* Is this session better? */
376: int
377: cmd_session_better(struct session *s, struct session *best,
378: int prefer_unattached)
379: {
380: if (best == NULL)
1.74 ! nicm 381: return (1);
1.72 nicm 382: if (prefer_unattached) {
383: if (!(best->flags & SESSION_UNATTACHED) &&
384: (s->flags & SESSION_UNATTACHED))
1.74 ! nicm 385: return (1);
1.72 nicm 386: else if ((best->flags & SESSION_UNATTACHED) &&
387: !(s->flags & SESSION_UNATTACHED))
1.74 ! nicm 388: return (0);
1.72 nicm 389: }
390: return (timercmp(&s->activity_time, &best->activity_time, >));
391: }
392:
1.52 nicm 393: /*
394: * Find the most recently used session, preferring unattached if the flag is
395: * set.
396: */
1.47 nicm 397: struct session *
1.52 nicm 398: cmd_choose_session(int prefer_unattached)
1.47 nicm 399: {
1.72 nicm 400: struct session *s, *best;
1.47 nicm 401:
1.72 nicm 402: best = NULL;
1.47 nicm 403: RB_FOREACH(s, sessions, &sessions) {
1.72 nicm 404: if (cmd_session_better(s, best, prefer_unattached))
405: best = s;
1.47 nicm 406: }
1.72 nicm 407: return (best);
1.5 nicm 408: }
409:
1.31 nicm 410: /* Find the most recently used session from a list. */
1.5 nicm 411: struct session *
1.47 nicm 412: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 413: {
1.31 nicm 414: struct session *s, *sbest;
1.5 nicm 415: struct timeval *tv = NULL;
416: u_int i;
417:
1.31 nicm 418: sbest = NULL;
1.11 nicm 419: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
420: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 421: continue;
422:
1.31 nicm 423: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
424: sbest = s;
425: tv = &s->activity_time;
1.1 nicm 426: }
427: }
1.5 nicm 428:
1.31 nicm 429: return (sbest);
1.1 nicm 430: }
431:
1.30 nicm 432: /*
433: * Find the current client. First try the current client if set, then pick the
1.31 nicm 434: * most recently used of the clients attached to the current session if any,
435: * then of all clients.
1.30 nicm 436: */
437: struct client *
438: cmd_current_client(struct cmd_ctx *ctx)
439: {
440: struct session *s;
441: struct client *c;
442: struct clients cc;
443: u_int i;
444:
445: if (ctx->curclient != NULL)
446: return (ctx->curclient);
447:
448: /*
449: * No current client set. Find the current session and return the
450: * newest of its clients.
451: */
1.52 nicm 452: s = cmd_current_session(ctx, 0);
1.30 nicm 453: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
454: ARRAY_INIT(&cc);
455: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
456: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
457: continue;
458: if (s == c->session)
459: ARRAY_ADD(&cc, c);
460: }
461:
1.31 nicm 462: c = cmd_choose_client(&cc);
1.30 nicm 463: ARRAY_FREE(&cc);
464: if (c != NULL)
465: return (c);
466: }
467:
1.31 nicm 468: return (cmd_choose_client(&clients));
1.30 nicm 469: }
470:
1.31 nicm 471: /* Choose the most recently used client from a list. */
1.20 nicm 472: struct client *
1.31 nicm 473: cmd_choose_client(struct clients *cc)
1.20 nicm 474: {
1.31 nicm 475: struct client *c, *cbest;
1.20 nicm 476: struct timeval *tv = NULL;
477: u_int i;
478:
1.31 nicm 479: cbest = NULL;
1.30 nicm 480: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
481: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 482: continue;
483: if (c->session == NULL)
484: continue;
485:
1.31 nicm 486: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
487: cbest = c;
488: tv = &c->activity_time;
1.20 nicm 489: }
490: }
491:
1.31 nicm 492: return (cbest);
1.20 nicm 493: }
494:
1.5 nicm 495: /* Find the target client or report an error and return NULL. */
1.1 nicm 496: struct client *
497: cmd_find_client(struct cmd_ctx *ctx, const char *arg)
498: {
1.30 nicm 499: struct client *c;
1.5 nicm 500: char *tmparg;
501: size_t arglen;
1.1 nicm 502:
1.5 nicm 503: /* A NULL argument means the current client. */
1.30 nicm 504: if (arg == NULL)
505: return (cmd_current_client(ctx));
1.5 nicm 506: tmparg = xstrdup(arg);
507:
508: /* Trim a single trailing colon if any. */
509: arglen = strlen(tmparg);
510: if (arglen != 0 && tmparg[arglen - 1] == ':')
511: tmparg[arglen - 1] = '\0';
512:
513: /* Find the client, if any. */
514: c = cmd_lookup_client(tmparg);
515:
516: /* If no client found, report an error. */
517: if (c == NULL)
518: ctx->error(ctx, "client not found: %s", tmparg);
519:
1.68 nicm 520: free(tmparg);
1.5 nicm 521: return (c);
522: }
523:
524: /*
525: * Lookup a client by device path. Either of a full match and a match without a
526: * leading _PATH_DEV ("/dev/") is accepted.
527: */
528: struct client *
529: cmd_lookup_client(const char *name)
530: {
531: struct client *c;
532: const char *path;
533: u_int i;
534:
535: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 536: c = ARRAY_ITEM(&clients, i);
537: if (c == NULL || c->session == NULL)
1.5 nicm 538: continue;
539: path = c->tty.path;
540:
541: /* Check for exact matches. */
542: if (strcmp(name, path) == 0)
543: return (c);
544:
545: /* Check without leading /dev if present. */
546: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
547: continue;
548: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
549: return (c);
550: }
551:
552: return (NULL);
553: }
554:
555: /* Lookup a session by name. If no session is found, NULL is returned. */
556: struct session *
557: cmd_lookup_session(const char *name, int *ambiguous)
558: {
559: struct session *s, *sfound;
560:
561: *ambiguous = 0;
562:
563: /*
1.28 nicm 564: * Look for matches. First look for exact matches - session names must
565: * be unique so an exact match can't be ambigious and can just be
566: * returned.
1.5 nicm 567: */
1.47 nicm 568: if ((s = session_find(name)) != NULL)
569: return (s);
1.28 nicm 570:
571: /*
572: * Otherwise look for partial matches, returning early if it is found to
573: * be ambiguous.
574: */
575: sfound = NULL;
1.47 nicm 576: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 577: if (strncmp(name, s->name, strlen(name)) == 0 ||
578: fnmatch(name, s->name, 0) == 0) {
579: if (sfound != NULL) {
580: *ambiguous = 1;
581: return (NULL);
582: }
583: sfound = s;
584: }
585: }
1.35 nicm 586: return (sfound);
1.5 nicm 587: }
588:
589: /*
1.8 nicm 590: * Lookup a window or return -1 if not found or ambigious. First try as an
591: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 592: * idx if the window index is a valid number but there is no window with that
1.8 nicm 593: * index.
1.5 nicm 594: */
595: struct winlink *
596: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
597: {
598: struct winlink *wl, *wlfound;
599: const char *errstr;
600: u_int idx;
601:
602: *ambiguous = 0;
603:
1.60 nicm 604: /* Try as a window id. */
605: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
606: return (wl);
607:
1.5 nicm 608: /* First see if this is a valid window index in this session. */
609: idx = strtonum(name, 0, INT_MAX, &errstr);
610: if (errstr == NULL) {
611: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
612: return (wl);
613: }
1.35 nicm 614:
1.5 nicm 615: /* Look for exact matches, error if more than one. */
616: wlfound = NULL;
617: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 618: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 619: if (wlfound != NULL) {
620: *ambiguous = 1;
621: return (NULL);
622: }
623: wlfound = wl;
1.1 nicm 624: }
625: }
1.5 nicm 626: if (wlfound != NULL)
627: return (wlfound);
628:
629: /* Now look for pattern matches, again error if multiple. */
630: wlfound = NULL;
631: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 632: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
633: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 634: if (wlfound != NULL) {
635: *ambiguous = 1;
636: return (NULL);
637: }
638: wlfound = wl;
639: }
1.35 nicm 640: }
1.5 nicm 641: if (wlfound != NULL)
642: return (wlfound);
643:
644: return (NULL);
1.1 nicm 645: }
646:
1.8 nicm 647: /*
648: * Find a window index - if the window doesn't exist, check if it is a
649: * potential index and return it anyway.
650: */
651: int
652: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
653: {
654: struct winlink *wl;
655: const char *errstr;
656: u_int idx;
657:
658: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
659: return (wl->idx);
660: if (*ambiguous)
661: return (-1);
662:
663: idx = strtonum(name, 0, INT_MAX, &errstr);
664: if (errstr == NULL)
665: return (idx);
666:
667: return (-1);
668: }
669:
1.60 nicm 670: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 671: struct window_pane *
672: cmd_lookup_paneid(const char *arg)
673: {
674: const char *errstr;
675: u_int paneid;
676:
677: if (*arg != '%')
678: return (NULL);
679:
680: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
681: if (errstr != NULL)
682: return (NULL);
683: return (window_pane_find_by_id(paneid));
684: }
685:
1.60 nicm 686: /* Lookup window id in a session. An initial @ means a window id. */
687: struct winlink *
688: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
689: {
690: const char *errstr;
691: u_int windowid;
692:
693: if (*arg != '@')
694: return (NULL);
695:
696: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
697: if (errstr != NULL)
698: return (NULL);
699: return (winlink_find_by_window_id(&s->windows, windowid));
700: }
701:
702: /* Lookup window id. An initial @ means a window id. */
703: struct window *
704: cmd_lookup_windowid(const char *arg)
705: {
706: const char *errstr;
707: u_int windowid;
708:
709: if (*arg != '@')
710: return (NULL);
711:
712: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
713: if (errstr != NULL)
714: return (NULL);
715: return (window_find_by_id(windowid));
716: }
717:
718: /* Find session and winlink for window. */
1.51 nicm 719: struct session *
1.60 nicm 720: cmd_window_session(struct cmd_ctx *ctx, struct window *w, struct winlink **wlp)
1.51 nicm 721: {
722: struct session *s;
723: struct sessionslist ss;
724: struct winlink *wl;
725:
1.60 nicm 726: /* If this window is in the current session, return that winlink. */
1.52 nicm 727: s = cmd_current_session(ctx, 0);
1.51 nicm 728: if (s != NULL) {
1.60 nicm 729: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 730: if (wl != NULL) {
731: if (wlp != NULL)
732: *wlp = wl;
733: return (s);
734: }
735: }
736:
1.60 nicm 737: /* Otherwise choose from all sessions with this window. */
1.51 nicm 738: ARRAY_INIT(&ss);
739: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 740: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 741: ARRAY_ADD(&ss, s);
742: }
743: s = cmd_choose_session_list(&ss);
744: ARRAY_FREE(&ss);
745: if (wlp != NULL)
1.60 nicm 746: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 747: return (s);
748: }
749:
1.5 nicm 750: /* Find the target session or report an error and return NULL. */
1.1 nicm 751: struct session *
1.52 nicm 752: cmd_find_session(struct cmd_ctx *ctx, const char *arg, int prefer_unattached)
1.1 nicm 753: {
1.51 nicm 754: struct session *s;
755: struct window_pane *wp;
1.60 nicm 756: struct window *w;
1.51 nicm 757: struct client *c;
758: char *tmparg;
759: size_t arglen;
760: int ambiguous;
1.1 nicm 761:
1.5 nicm 762: /* A NULL argument means the current session. */
1.1 nicm 763: if (arg == NULL)
1.52 nicm 764: return (cmd_current_session(ctx, prefer_unattached));
1.5 nicm 765:
1.60 nicm 766: /* Lookup as pane id or window id. */
1.51 nicm 767: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.60 nicm 768: return (cmd_window_session(ctx, wp->window, NULL));
769: if ((w = cmd_lookup_windowid(arg)) != NULL)
770: return (cmd_window_session(ctx, w, NULL));
1.51 nicm 771:
1.5 nicm 772: /* Trim a single trailing colon if any. */
1.54 nicm 773: tmparg = xstrdup(arg);
1.5 nicm 774: arglen = strlen(tmparg);
775: if (arglen != 0 && tmparg[arglen - 1] == ':')
776: tmparg[arglen - 1] = '\0';
777:
1.53 nicm 778: /* An empty session name is the current session. */
779: if (*tmparg == '\0') {
1.68 nicm 780: free(tmparg);
1.53 nicm 781: return (cmd_current_session(ctx, prefer_unattached));
782: }
783:
1.5 nicm 784: /* Find the session, if any. */
785: s = cmd_lookup_session(tmparg, &ambiguous);
786:
787: /* If it doesn't, try to match it as a client. */
788: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
789: s = c->session;
790:
791: /* If no session found, report an error. */
792: if (s == NULL) {
793: if (ambiguous)
794: ctx->error(ctx, "more than one session: %s", tmparg);
795: else
796: ctx->error(ctx, "session not found: %s", tmparg);
1.1 nicm 797: }
1.5 nicm 798:
1.68 nicm 799: free(tmparg);
1.1 nicm 800: return (s);
801: }
802:
1.5 nicm 803: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 804: struct winlink *
805: cmd_find_window(struct cmd_ctx *ctx, const char *arg, struct session **sp)
806: {
1.51 nicm 807: struct session *s;
808: struct winlink *wl;
809: struct window_pane *wp;
810: const char *winptr;
811: char *sessptr = NULL;
812: int ambiguous = 0;
1.5 nicm 813:
814: /*
815: * Find the current session. There must always be a current session, if
816: * it can't be found, report an error.
817: */
1.52 nicm 818: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 819: ctx->error(ctx, "can't establish current session");
820: return (NULL);
821: }
822:
823: /* A NULL argument means the current session and window. */
824: if (arg == NULL) {
825: if (sp != NULL)
826: *sp = s;
827: return (s->curw);
828: }
829:
1.51 nicm 830: /* Lookup as pane id. */
831: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 832: s = cmd_window_session(ctx, wp->window, &wl);
1.51 nicm 833: if (sp != NULL)
834: *sp = s;
835: return (wl);
836: }
837:
1.5 nicm 838: /* Time to look at the argument. If it is empty, that is an error. */
839: if (*arg == '\0')
840: goto not_found;
841:
1.8 nicm 842: /* Find the separating colon and split into window and session. */
1.5 nicm 843: winptr = strchr(arg, ':');
844: if (winptr == NULL)
1.8 nicm 845: goto no_colon;
846: winptr++; /* skip : */
847: sessptr = xstrdup(arg);
848: *strchr(sessptr, ':') = '\0';
1.5 nicm 849:
850: /* Try to lookup the session if present. */
1.8 nicm 851: if (*sessptr != '\0') {
852: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 853: goto no_session;
854: }
855: if (sp != NULL)
856: *sp = s;
857:
858: /*
859: * Then work out the window. An empty string is the current window,
1.38 nicm 860: * otherwise try special cases then to look it up in the session.
1.5 nicm 861: */
1.8 nicm 862: if (*winptr == '\0')
1.5 nicm 863: wl = s->curw;
1.38 nicm 864: else if (winptr[0] == '!' && winptr[1] == '\0')
865: wl = TAILQ_FIRST(&s->lastw);
1.73 nicm 866: else if (winptr[0] == '^' && winptr[1] == '\0')
867: wl = RB_MIN(winlinks, &s->windows);
868: else if (winptr[0] == '$' && winptr[1] == '\0')
869: wl = RB_MAX(winlinks, &s->windows);
1.43 nicm 870: else if (winptr[0] == '+' || winptr[0] == '-')
871: wl = cmd_find_window_offset(winptr, s, &ambiguous);
872: else
1.38 nicm 873: wl = cmd_lookup_window(s, winptr, &ambiguous);
874: if (wl == NULL)
1.5 nicm 875: goto not_found;
1.35 nicm 876:
1.5 nicm 877: if (sessptr != NULL)
1.68 nicm 878: free(sessptr);
1.5 nicm 879: return (wl);
880:
1.8 nicm 881: no_colon:
1.38 nicm 882: /*
883: * No colon in the string, first try special cases, then as a window
884: * and lastly as a session.
885: */
886: if (arg[0] == '!' && arg[1] == '\0') {
887: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
888: goto not_found;
1.41 nicm 889: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 890: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 891: goto lookup_session;
892: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
893: goto lookup_session;
1.8 nicm 894:
895: if (sp != NULL)
896: *sp = s;
897:
898: return (wl);
899:
1.41 nicm 900: lookup_session:
901: if (ambiguous)
902: goto not_found;
1.53 nicm 903: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 904: goto no_session;
905:
906: if (sp != NULL)
907: *sp = s;
908:
909: return (s->curw);
910:
1.5 nicm 911: no_session:
912: if (ambiguous)
1.8 nicm 913: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 914: else
1.8 nicm 915: ctx->error(ctx, "session not found: %s", arg);
1.68 nicm 916: free(sessptr);
1.5 nicm 917: return (NULL);
918:
919: not_found:
920: if (ambiguous)
921: ctx->error(ctx, "multiple windows: %s", arg);
922: else
923: ctx->error(ctx, "window not found: %s", arg);
1.68 nicm 924: free(sessptr);
1.5 nicm 925: return (NULL);
926: }
1.1 nicm 927:
1.43 nicm 928: struct winlink *
929: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
930: {
931: struct winlink *wl;
932: int offset = 1;
933:
934: if (winptr[1] != '\0')
935: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
936: if (offset == 0)
937: wl = cmd_lookup_window(s, winptr, ambiguous);
938: else {
939: if (winptr[0] == '+')
940: wl = winlink_next_by_number(s->curw, s, offset);
941: else
942: wl = winlink_previous_by_number(s->curw, s, offset);
943: }
944:
945: return (wl);
946: }
947:
1.5 nicm 948: /*
949: * Find the target session and window index, whether or not it exists in the
950: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 951: * used when parsing an argument for a window target that may not exist (for
952: * example if it is going to be created).
1.5 nicm 953: */
954: int
955: cmd_find_index(struct cmd_ctx *ctx, const char *arg, struct session **sp)
956: {
957: struct session *s;
1.38 nicm 958: struct winlink *wl;
1.8 nicm 959: const char *winptr;
1.5 nicm 960: char *sessptr = NULL;
961: int idx, ambiguous = 0;
962:
963: /*
964: * Find the current session. There must always be a current session, if
965: * it can't be found, report an error.
966: */
1.52 nicm 967: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.5 nicm 968: ctx->error(ctx, "can't establish current session");
1.9 nicm 969: return (-2);
1.1 nicm 970: }
1.5 nicm 971:
972: /* A NULL argument means the current session and "no window" (-1). */
973: if (arg == NULL) {
974: if (sp != NULL)
975: *sp = s;
976: return (-1);
977: }
978:
979: /* Time to look at the argument. If it is empty, that is an error. */
980: if (*arg == '\0')
981: goto not_found;
982:
983: /* Find the separating colon. If none, assume the current session. */
984: winptr = strchr(arg, ':');
985: if (winptr == NULL)
1.8 nicm 986: goto no_colon;
987: winptr++; /* skip : */
988: sessptr = xstrdup(arg);
989: *strchr(sessptr, ':') = '\0';
1.5 nicm 990:
991: /* Try to lookup the session if present. */
992: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 993: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 994: goto no_session;
995: }
1.1 nicm 996: if (sp != NULL)
997: *sp = s;
998:
1.5 nicm 999: /*
1.8 nicm 1000: * Then work out the window. An empty string is a new window otherwise
1001: * try to look it up in the session.
1.5 nicm 1002: */
1.8 nicm 1003: if (*winptr == '\0')
1.38 nicm 1004: idx = -1;
1005: else if (winptr[0] == '!' && winptr[1] == '\0') {
1006: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1007: goto not_found;
1008: idx = wl->idx;
1.41 nicm 1009: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 1010: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 1011: goto invalid_index;
1012: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1013: goto invalid_index;
1.35 nicm 1014:
1.68 nicm 1015: free(sessptr);
1.5 nicm 1016: return (idx);
1017:
1.8 nicm 1018: no_colon:
1.38 nicm 1019: /*
1020: * No colon in the string, first try special cases, then as a window
1021: * and lastly as a session.
1022: */
1023: if (arg[0] == '!' && arg[1] == '\0') {
1024: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1025: goto not_found;
1026: idx = wl->idx;
1.41 nicm 1027: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1028: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1029: goto lookup_session;
1030: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1031: goto lookup_session;
1.8 nicm 1032:
1033: if (sp != NULL)
1034: *sp = s;
1035:
1036: return (idx);
1037:
1.41 nicm 1038: lookup_session:
1039: if (ambiguous)
1040: goto not_found;
1.53 nicm 1041: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1042: goto no_session;
1043:
1044: if (sp != NULL)
1045: *sp = s;
1046:
1047: return (-1);
1048:
1.5 nicm 1049: no_session:
1050: if (ambiguous)
1.35 nicm 1051: ctx->error(ctx, "multiple sessions: %s", arg);
1.5 nicm 1052: else
1.8 nicm 1053: ctx->error(ctx, "session not found: %s", arg);
1.68 nicm 1054: free(sessptr);
1.5 nicm 1055: return (-2);
1056:
1.41 nicm 1057: invalid_index:
1058: if (ambiguous)
1059: goto not_found;
1060: ctx->error(ctx, "invalid index: %s", arg);
1061:
1.68 nicm 1062: free(sessptr);
1.41 nicm 1063: return (-2);
1064:
1.5 nicm 1065: not_found:
1066: if (ambiguous)
1067: ctx->error(ctx, "multiple windows: %s", arg);
1.1 nicm 1068: else
1.5 nicm 1069: ctx->error(ctx, "window not found: %s", arg);
1.68 nicm 1070: free(sessptr);
1.5 nicm 1071: return (-2);
1.12 nicm 1072: }
1073:
1.43 nicm 1074: int
1075: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1076: {
1077: int idx, offset = 1;
1078:
1079: if (winptr[1] != '\0')
1080: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1081: if (offset == 0)
1082: idx = cmd_lookup_index(s, winptr, ambiguous);
1083: else {
1084: if (winptr[0] == '+') {
1085: if (s->curw->idx == INT_MAX)
1086: idx = cmd_lookup_index(s, winptr, ambiguous);
1087: else
1088: idx = s->curw->idx + offset;
1089: } else {
1090: if (s->curw->idx == 0)
1091: idx = cmd_lookup_index(s, winptr, ambiguous);
1092: else
1093: idx = s->curw->idx - offset;
1094: }
1095: }
1096:
1097: return (idx);
1098: }
1099:
1.12 nicm 1100: /*
1101: * Find the target session, window and pane number or report an error and
1102: * return NULL. The pane number is separated from the session:window by a .,
1103: * such as mysession:mywindow.0.
1104: */
1105: struct winlink *
1106: cmd_find_pane(struct cmd_ctx *ctx,
1107: const char *arg, struct session **sp, struct window_pane **wpp)
1108: {
1.55 nicm 1109: struct session *s;
1110: struct winlink *wl;
1111: const char *period, *errstr;
1112: char *winptr, *paneptr;
1113: u_int idx;
1.12 nicm 1114:
1115: /* Get the current session. */
1.52 nicm 1116: if ((s = cmd_current_session(ctx, 0)) == NULL) {
1.27 deraadt 1117: ctx->error(ctx, "can't establish current session");
1.12 nicm 1118: return (NULL);
1119: }
1120: if (sp != NULL)
1121: *sp = s;
1122:
1123: /* A NULL argument means the current session, window and pane. */
1124: if (arg == NULL) {
1125: *wpp = s->curw->window->active;
1126: return (s->curw);
1.51 nicm 1127: }
1128:
1129: /* Lookup as pane id. */
1130: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.60 nicm 1131: s = cmd_window_session(ctx, (*wpp)->window, &wl);
1.51 nicm 1132: if (sp != NULL)
1133: *sp = s;
1134: return (wl);
1.12 nicm 1135: }
1136:
1137: /* Look for a separating period. */
1138: if ((period = strrchr(arg, '.')) == NULL)
1139: goto no_period;
1140:
1141: /* Pull out the window part and parse it. */
1142: winptr = xstrdup(arg);
1143: winptr[period - arg] = '\0';
1144: if (*winptr == '\0')
1145: wl = s->curw;
1146: else if ((wl = cmd_find_window(ctx, winptr, sp)) == NULL)
1147: goto error;
1148:
1149: /* Find the pane section and look it up. */
1150: paneptr = winptr + (period - arg) + 1;
1151: if (*paneptr == '\0')
1152: *wpp = wl->window->active;
1.43 nicm 1153: else if (paneptr[0] == '+' || paneptr[0] == '-')
1154: *wpp = cmd_find_pane_offset(paneptr, wl);
1155: else {
1.12 nicm 1156: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1157: if (errstr != NULL)
1158: goto lookup_string;
1.12 nicm 1159: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1160: if (*wpp == NULL)
1161: goto lookup_string;
1.12 nicm 1162: }
1163:
1.68 nicm 1164: free(winptr);
1.12 nicm 1165: return (wl);
1166:
1.36 nicm 1167: lookup_string:
1168: /* Try pane string description. */
1.55 nicm 1169: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.36 nicm 1170: ctx->error(ctx, "can't find pane: %s", paneptr);
1171: goto error;
1172: }
1173:
1.68 nicm 1174: free(winptr);
1.39 nicm 1175: return (wl);
1.36 nicm 1176:
1.12 nicm 1177: no_period:
1178: /* Try as a pane number alone. */
1179: idx = strtonum(arg, 0, INT_MAX, &errstr);
1180: if (errstr != NULL)
1181: goto lookup_window;
1182:
1183: /* Try index in the current session and window. */
1184: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1185: goto lookup_window;
1.35 nicm 1186:
1.12 nicm 1187: return (s->curw);
1188:
1189: lookup_window:
1.36 nicm 1190: /* Try pane string description. */
1.55 nicm 1191: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1192: return (s->curw);
1193:
1.12 nicm 1194: /* Try as a window and use the active pane. */
1195: if ((wl = cmd_find_window(ctx, arg, sp)) != NULL)
1196: *wpp = wl->window->active;
1197: return (wl);
1.35 nicm 1198:
1.12 nicm 1199: error:
1.68 nicm 1200: free(winptr);
1.12 nicm 1201: return (NULL);
1.43 nicm 1202: }
1203:
1204: struct window_pane *
1205: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1206: {
1207: struct window *w = wl->window;
1208: struct window_pane *wp = w->active;
1209: u_int offset = 1;
1210:
1211: if (paneptr[1] != '\0')
1212: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1213: if (offset > 0) {
1214: if (paneptr[0] == '+')
1215: wp = window_pane_next_by_number(w, wp, offset);
1216: else
1217: wp = window_pane_previous_by_number(w, wp, offset);
1218: }
1219:
1220: return (wp);
1.15 nicm 1221: }
1222:
1223: /* Replace the first %% or %idx in template by s. */
1224: char *
1225: cmd_template_replace(char *template, const char *s, int idx)
1226: {
1227: char ch;
1228: char *buf, *ptr;
1229: int replaced;
1230: size_t len;
1231:
1232: if (strstr(template, "%") == NULL)
1233: return (xstrdup(template));
1234:
1235: buf = xmalloc(1);
1236: *buf = '\0';
1237: len = 0;
1238: replaced = 0;
1239:
1240: ptr = template;
1241: while (*ptr != '\0') {
1242: switch (ch = *ptr++) {
1243: case '%':
1244: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1245: if (*ptr != '%' || replaced)
1246: break;
1247: replaced = 1;
1248: }
1249: ptr++;
1250:
1251: len += strlen(s);
1252: buf = xrealloc(buf, 1, len + 1);
1253: strlcat(buf, s, len + 1);
1254: continue;
1255: }
1256: buf = xrealloc(buf, 1, len + 2);
1257: buf[len++] = ch;
1258: buf[len] = '\0';
1259: }
1260:
1261: return (buf);
1.57 nicm 1262: }
1263:
1.61 nicm 1264: /*
1265: * Return the default path for a new pane, using the given path or the
1266: * default-path option if it is NULL. Several special values are accepted: the
1267: * empty string or relative path for the current pane's working directory, ~
1268: * for the user's home, - for the session working directory, . for the tmux
1269: * server's working directory. The default on failure is the session's working
1270: * directory.
1271: */
1.59 nicm 1272: const char *
1.61 nicm 1273: cmd_get_default_path(struct cmd_ctx *ctx, const char *cwd)
1.57 nicm 1274: {
1275: struct session *s;
1.58 stsp 1276: struct environ_entry *envent;
1.61 nicm 1277: const char *root;
1278: char tmp[MAXPATHLEN];
1279: struct passwd *pw;
1280: int n;
1281: size_t skip;
1282: static char path[MAXPATHLEN];
1.57 nicm 1283:
1284: if ((s = cmd_current_session(ctx, 0)) == NULL)
1285: return (NULL);
1286:
1.61 nicm 1287: if (cwd == NULL)
1288: cwd = options_get_string(&s->options, "default-path");
1289:
1290: skip = 1;
1291: if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
1292: /* User's home directory - $HOME. */
1293: skip = 5;
1294: goto find_home;
1295: } else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
1296: /* User's home directory - ~. */
1297: goto find_home;
1298: } else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
1299: /* Session working directory. */
1300: root = s->cwd;
1301: goto complete_path;
1.66 nicm 1302: } else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
1.61 nicm 1303: /* Server working directory. */
1304: if (getcwd(tmp, sizeof tmp) != NULL) {
1305: root = tmp;
1306: goto complete_path;
1.57 nicm 1307: }
1308: return (s->cwd);
1.61 nicm 1309: } else if (*cwd == '/') {
1310: /* Absolute path. */
1311: return (cwd);
1312: } else {
1313: /* Empty or relative path. */
1314: if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
1315: root = ctx->cmdclient->cwd;
1.66 nicm 1316: else if (ctx->curclient != NULL && s->curw != NULL)
1.71 nicm 1317: root = get_proc_cwd(s->curw->window->active->fd);
1.61 nicm 1318: else
1319: return (s->cwd);
1320: skip = 0;
1.62 nicm 1321: if (root != NULL)
1322: goto complete_path;
1.57 nicm 1323: }
1.61 nicm 1324:
1325: return (s->cwd);
1326:
1327: find_home:
1328: envent = environ_find(&global_environ, "HOME");
1329: if (envent != NULL && *envent->value != '\0')
1330: root = envent->value;
1331: else if ((pw = getpwuid(getuid())) != NULL)
1332: root = pw->pw_dir;
1333: else
1334: return (s->cwd);
1335:
1336: complete_path:
1.65 nicm 1337: if (root[skip] == '\0') {
1338: strlcpy(path, root, sizeof path);
1339: return (path);
1340: }
1.61 nicm 1341: n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
1342: if (n > 0 && (size_t)n < sizeof path)
1343: return (path);
1344: return (s->cwd);
1.1 nicm 1345: }
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