Annotation of src/usr.bin/tmux/cmd.c, Revision 1.90
1.90 ! nicm 1: /* $OpenBSD: cmd.c,v 1.89 2013/10/10 12:29:35 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,
1.82 nicm 116: &cmd_wait_for_entry,
1.1 nicm 117: NULL
118: };
119:
1.72 nicm 120: int cmd_session_better(struct session *, struct session *, int);
1.47 nicm 121: struct session *cmd_choose_session_list(struct sessionslist *);
1.52 nicm 122: struct session *cmd_choose_session(int);
1.31 nicm 123: struct client *cmd_choose_client(struct clients *);
1.5 nicm 124: struct client *cmd_lookup_client(const char *);
125: struct session *cmd_lookup_session(const char *, int *);
1.83 nicm 126: struct session *cmd_lookup_session_id(const char *);
1.5 nicm 127: struct winlink *cmd_lookup_window(struct session *, const char *, int *);
1.8 nicm 128: int cmd_lookup_index(struct session *, const char *, int *);
1.60 nicm 129: struct winlink *cmd_lookup_winlink_windowid(struct session *, const char *);
1.80 nicm 130: struct session *cmd_window_session(struct cmd_q *, struct window *,
131: 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 *
1.80 nicm 209: cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
1.1 nicm 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;
1.1 nicm 256:
1.80 nicm 257: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 258: cmd->entry = entry;
1.49 nicm 259: cmd->args = args;
1.80 nicm 260:
261: if (file != NULL)
262: cmd->file = xstrdup(file);
263: cmd->line = line;
264:
1.1 nicm 265: return (cmd);
266:
267: ambiguous:
268: *s = '\0';
269: for (entryp = cmd_table; *entryp != NULL; entryp++) {
270: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
271: continue;
272: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
273: break;
274: if (strlcat(s, ", ", sizeof s) >= sizeof s)
275: break;
276: }
277: s[strlen(s) - 2] = '\0';
278: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
279: return (NULL);
280:
281: usage:
1.49 nicm 282: if (args != NULL)
283: args_free(args);
1.1 nicm 284: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
285: return (NULL);
286: }
287:
288: size_t
289: cmd_print(struct cmd *cmd, char *buf, size_t len)
290: {
1.49 nicm 291: size_t off, used;
292:
293: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
1.85 nicm 294: if (off + 1 < len) {
295: used = args_print(cmd->args, buf + off, len - off - 1);
1.49 nicm 296: if (used == 0)
1.64 nicm 297: off--;
298: else
1.49 nicm 299: off += used;
1.64 nicm 300: buf[off] = '\0';
1.49 nicm 301: }
302: return (off);
1.1 nicm 303: }
304:
1.5 nicm 305: /*
306: * Figure out the current session. Use: 1) the current session, if the command
1.31 nicm 307: * context has one; 2) the most recently used session containing the pty of the
308: * calling client, if any; 3) the session specified in the TMUX variable from
309: * the environment (as passed from the client); 4) the most recently used
310: * session from all sessions.
1.5 nicm 311: */
1.1 nicm 312: struct session *
1.80 nicm 313: cmd_current_session(struct cmd_q *cmdq, int prefer_unattached)
1.1 nicm 314: {
1.80 nicm 315: struct client *c = cmdq->client;
1.5 nicm 316: struct session *s;
1.47 nicm 317: struct sessionslist ss;
1.11 nicm 318: struct winlink *wl;
319: struct window_pane *wp;
1.80 nicm 320: const char *path;
1.11 nicm 321: int found;
1.1 nicm 322:
1.80 nicm 323: if (c != NULL && c->session != NULL)
324: return (c->session);
1.1 nicm 325:
1.11 nicm 326: /*
1.81 nicm 327: * If the name of the calling client's pty is known, build a list of
328: * the sessions that contain it and if any choose either the first or
329: * the newest.
1.11 nicm 330: */
1.80 nicm 331: path = c == NULL ? NULL : c->tty.path;
332: if (path != NULL) {
1.11 nicm 333: ARRAY_INIT(&ss);
1.47 nicm 334: RB_FOREACH(s, sessions, &sessions) {
1.11 nicm 335: found = 0;
336: RB_FOREACH(wl, winlinks, &s->windows) {
337: TAILQ_FOREACH(wp, &wl->window->panes, entry) {
1.80 nicm 338: if (strcmp(wp->tty, path) == 0) {
1.11 nicm 339: found = 1;
340: break;
341: }
342: }
343: if (found)
344: break;
345: }
346: if (found)
347: ARRAY_ADD(&ss, s);
348: }
349:
1.47 nicm 350: s = cmd_choose_session_list(&ss);
1.11 nicm 351: ARRAY_FREE(&ss);
1.47 nicm 352: if (s != NULL)
353: return (s);
354: }
355:
1.52 nicm 356: return (cmd_choose_session(prefer_unattached));
1.47 nicm 357: }
358:
1.72 nicm 359: /* Is this session better? */
360: int
361: cmd_session_better(struct session *s, struct session *best,
362: int prefer_unattached)
363: {
364: if (best == NULL)
1.74 nicm 365: return (1);
1.72 nicm 366: if (prefer_unattached) {
367: if (!(best->flags & SESSION_UNATTACHED) &&
368: (s->flags & SESSION_UNATTACHED))
1.74 nicm 369: return (1);
1.72 nicm 370: else if ((best->flags & SESSION_UNATTACHED) &&
371: !(s->flags & SESSION_UNATTACHED))
1.74 nicm 372: return (0);
1.72 nicm 373: }
374: return (timercmp(&s->activity_time, &best->activity_time, >));
375: }
376:
1.52 nicm 377: /*
378: * Find the most recently used session, preferring unattached if the flag is
379: * set.
380: */
1.47 nicm 381: struct session *
1.52 nicm 382: cmd_choose_session(int prefer_unattached)
1.47 nicm 383: {
1.72 nicm 384: struct session *s, *best;
1.47 nicm 385:
1.72 nicm 386: best = NULL;
1.47 nicm 387: RB_FOREACH(s, sessions, &sessions) {
1.72 nicm 388: if (cmd_session_better(s, best, prefer_unattached))
389: best = s;
1.47 nicm 390: }
1.72 nicm 391: return (best);
1.5 nicm 392: }
393:
1.31 nicm 394: /* Find the most recently used session from a list. */
1.5 nicm 395: struct session *
1.47 nicm 396: cmd_choose_session_list(struct sessionslist *ss)
1.5 nicm 397: {
1.31 nicm 398: struct session *s, *sbest;
1.5 nicm 399: struct timeval *tv = NULL;
400: u_int i;
401:
1.31 nicm 402: sbest = NULL;
1.11 nicm 403: for (i = 0; i < ARRAY_LENGTH(ss); i++) {
404: if ((s = ARRAY_ITEM(ss, i)) == NULL)
1.5 nicm 405: continue;
406:
1.31 nicm 407: if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
408: sbest = s;
409: tv = &s->activity_time;
1.1 nicm 410: }
411: }
1.5 nicm 412:
1.31 nicm 413: return (sbest);
1.1 nicm 414: }
415:
1.30 nicm 416: /*
417: * Find the current client. First try the current client if set, then pick the
1.31 nicm 418: * most recently used of the clients attached to the current session if any,
419: * then of all clients.
1.30 nicm 420: */
421: struct client *
1.80 nicm 422: cmd_current_client(struct cmd_q *cmdq)
1.30 nicm 423: {
424: struct session *s;
425: struct client *c;
426: struct clients cc;
427: u_int i;
428:
1.80 nicm 429: if (cmdq->client != NULL && cmdq->client->session != NULL)
430: return (cmdq->client);
1.30 nicm 431:
432: /*
433: * No current client set. Find the current session and return the
434: * newest of its clients.
435: */
1.80 nicm 436: s = cmd_current_session(cmdq, 0);
1.30 nicm 437: if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
438: ARRAY_INIT(&cc);
439: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
440: if ((c = ARRAY_ITEM(&clients, i)) == NULL)
441: continue;
442: if (s == c->session)
443: ARRAY_ADD(&cc, c);
444: }
445:
1.31 nicm 446: c = cmd_choose_client(&cc);
1.30 nicm 447: ARRAY_FREE(&cc);
448: if (c != NULL)
449: return (c);
450: }
451:
1.31 nicm 452: return (cmd_choose_client(&clients));
1.30 nicm 453: }
454:
1.31 nicm 455: /* Choose the most recently used client from a list. */
1.20 nicm 456: struct client *
1.31 nicm 457: cmd_choose_client(struct clients *cc)
1.20 nicm 458: {
1.31 nicm 459: struct client *c, *cbest;
1.20 nicm 460: struct timeval *tv = NULL;
461: u_int i;
462:
1.31 nicm 463: cbest = NULL;
1.30 nicm 464: for (i = 0; i < ARRAY_LENGTH(cc); i++) {
465: if ((c = ARRAY_ITEM(cc, i)) == NULL)
1.20 nicm 466: continue;
467: if (c->session == NULL)
468: continue;
469:
1.31 nicm 470: if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
471: cbest = c;
472: tv = &c->activity_time;
1.20 nicm 473: }
474: }
475:
1.31 nicm 476: return (cbest);
1.20 nicm 477: }
478:
1.5 nicm 479: /* Find the target client or report an error and return NULL. */
1.1 nicm 480: struct client *
1.80 nicm 481: cmd_find_client(struct cmd_q *cmdq, const char *arg, int quiet)
1.1 nicm 482: {
1.30 nicm 483: struct client *c;
1.5 nicm 484: char *tmparg;
485: size_t arglen;
1.1 nicm 486:
1.5 nicm 487: /* A NULL argument means the current client. */
1.79 nicm 488: if (arg == NULL) {
1.80 nicm 489: c = cmd_current_client(cmdq);
1.79 nicm 490: if (c == NULL && !quiet)
1.80 nicm 491: cmdq_error(cmdq, "no clients");
1.79 nicm 492: return (c);
493: }
1.5 nicm 494: tmparg = xstrdup(arg);
495:
496: /* Trim a single trailing colon if any. */
497: arglen = strlen(tmparg);
498: if (arglen != 0 && tmparg[arglen - 1] == ':')
499: tmparg[arglen - 1] = '\0';
500:
501: /* Find the client, if any. */
502: c = cmd_lookup_client(tmparg);
503:
504: /* If no client found, report an error. */
1.79 nicm 505: if (c == NULL && !quiet)
1.80 nicm 506: cmdq_error(cmdq, "client not found: %s", tmparg);
1.5 nicm 507:
1.68 nicm 508: free(tmparg);
1.5 nicm 509: return (c);
510: }
511:
512: /*
513: * Lookup a client by device path. Either of a full match and a match without a
514: * leading _PATH_DEV ("/dev/") is accepted.
515: */
516: struct client *
517: cmd_lookup_client(const char *name)
518: {
519: struct client *c;
520: const char *path;
521: u_int i;
522:
523: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
1.25 nicm 524: c = ARRAY_ITEM(&clients, i);
1.81 nicm 525: if (c == NULL || c->session == NULL || c->tty.path == NULL)
1.5 nicm 526: continue;
527: path = c->tty.path;
528:
529: /* Check for exact matches. */
530: if (strcmp(name, path) == 0)
531: return (c);
532:
533: /* Check without leading /dev if present. */
534: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
535: continue;
536: if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
537: return (c);
538: }
539:
540: return (NULL);
541: }
542:
1.83 nicm 543: /* Find the target session or report an error and return NULL. */
544: struct session *
545: cmd_lookup_session_id(const char *arg)
546: {
547: char *endptr;
548: long id;
549:
550: if (arg[0] != '$')
551: return (NULL);
552: id = strtol(arg + 1, &endptr, 10);
553: if (arg[1] != '\0' && *endptr == '\0')
554: return (session_find_by_id(id));
555: return (NULL);
556: }
557:
1.5 nicm 558: /* Lookup a session by name. If no session is found, NULL is returned. */
559: struct session *
560: cmd_lookup_session(const char *name, int *ambiguous)
561: {
562: struct session *s, *sfound;
563:
564: *ambiguous = 0;
1.83 nicm 565:
566: /* Look for $id first. */
567: if ((s = cmd_lookup_session_id(name)) != NULL)
568: return (s);
1.5 nicm 569:
570: /*
1.28 nicm 571: * Look for matches. First look for exact matches - session names must
572: * be unique so an exact match can't be ambigious and can just be
573: * returned.
1.5 nicm 574: */
1.47 nicm 575: if ((s = session_find(name)) != NULL)
576: return (s);
1.28 nicm 577:
578: /*
579: * Otherwise look for partial matches, returning early if it is found to
580: * be ambiguous.
581: */
582: sfound = NULL;
1.47 nicm 583: RB_FOREACH(s, sessions, &sessions) {
1.5 nicm 584: if (strncmp(name, s->name, strlen(name)) == 0 ||
585: fnmatch(name, s->name, 0) == 0) {
586: if (sfound != NULL) {
587: *ambiguous = 1;
588: return (NULL);
589: }
590: sfound = s;
591: }
592: }
1.35 nicm 593: return (sfound);
1.5 nicm 594: }
595:
596: /*
1.8 nicm 597: * Lookup a window or return -1 if not found or ambigious. First try as an
598: * index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
1.41 nicm 599: * idx if the window index is a valid number but there is no window with that
1.8 nicm 600: * index.
1.5 nicm 601: */
602: struct winlink *
603: cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
604: {
605: struct winlink *wl, *wlfound;
606: const char *errstr;
607: u_int idx;
608:
609: *ambiguous = 0;
610:
1.60 nicm 611: /* Try as a window id. */
612: if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
613: return (wl);
614:
1.5 nicm 615: /* First see if this is a valid window index in this session. */
616: idx = strtonum(name, 0, INT_MAX, &errstr);
617: if (errstr == NULL) {
618: if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
619: return (wl);
620: }
1.35 nicm 621:
1.5 nicm 622: /* Look for exact matches, error if more than one. */
623: wlfound = NULL;
624: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 625: if (strcmp(name, wl->window->name) == 0) {
1.5 nicm 626: if (wlfound != NULL) {
627: *ambiguous = 1;
628: return (NULL);
629: }
630: wlfound = wl;
1.1 nicm 631: }
632: }
1.5 nicm 633: if (wlfound != NULL)
634: return (wlfound);
635:
636: /* Now look for pattern matches, again error if multiple. */
637: wlfound = NULL;
638: RB_FOREACH(wl, winlinks, &s->windows) {
1.8 nicm 639: if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
640: fnmatch(name, wl->window->name, 0) == 0) {
1.5 nicm 641: if (wlfound != NULL) {
642: *ambiguous = 1;
643: return (NULL);
644: }
645: wlfound = wl;
646: }
1.35 nicm 647: }
1.5 nicm 648: if (wlfound != NULL)
649: return (wlfound);
650:
651: return (NULL);
1.1 nicm 652: }
653:
1.8 nicm 654: /*
655: * Find a window index - if the window doesn't exist, check if it is a
656: * potential index and return it anyway.
657: */
658: int
659: cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
660: {
661: struct winlink *wl;
662: const char *errstr;
663: u_int idx;
664:
665: if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
666: return (wl->idx);
667: if (*ambiguous)
668: return (-1);
669:
670: idx = strtonum(name, 0, INT_MAX, &errstr);
671: if (errstr == NULL)
672: return (idx);
673:
674: return (-1);
675: }
676:
1.60 nicm 677: /* Lookup pane id. An initial % means a pane id. */
1.51 nicm 678: struct window_pane *
679: cmd_lookup_paneid(const char *arg)
680: {
681: const char *errstr;
682: u_int paneid;
683:
684: if (*arg != '%')
685: return (NULL);
686:
687: paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
688: if (errstr != NULL)
689: return (NULL);
690: return (window_pane_find_by_id(paneid));
691: }
692:
1.60 nicm 693: /* Lookup window id in a session. An initial @ means a window id. */
694: struct winlink *
695: cmd_lookup_winlink_windowid(struct session *s, const char *arg)
696: {
697: const char *errstr;
698: u_int windowid;
699:
700: if (*arg != '@')
701: return (NULL);
702:
703: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
704: if (errstr != NULL)
705: return (NULL);
706: return (winlink_find_by_window_id(&s->windows, windowid));
707: }
708:
709: /* Lookup window id. An initial @ means a window id. */
710: struct window *
711: cmd_lookup_windowid(const char *arg)
712: {
713: const char *errstr;
714: u_int windowid;
715:
716: if (*arg != '@')
717: return (NULL);
718:
719: windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
720: if (errstr != NULL)
721: return (NULL);
722: return (window_find_by_id(windowid));
723: }
724:
725: /* Find session and winlink for window. */
1.51 nicm 726: struct session *
1.80 nicm 727: cmd_window_session(struct cmd_q *cmdq, struct window *w, struct winlink **wlp)
1.51 nicm 728: {
729: struct session *s;
730: struct sessionslist ss;
731: struct winlink *wl;
732:
1.60 nicm 733: /* If this window is in the current session, return that winlink. */
1.80 nicm 734: s = cmd_current_session(cmdq, 0);
1.51 nicm 735: if (s != NULL) {
1.60 nicm 736: wl = winlink_find_by_window(&s->windows, w);
1.51 nicm 737: if (wl != NULL) {
738: if (wlp != NULL)
739: *wlp = wl;
740: return (s);
741: }
742: }
743:
1.60 nicm 744: /* Otherwise choose from all sessions with this window. */
1.51 nicm 745: ARRAY_INIT(&ss);
746: RB_FOREACH(s, sessions, &sessions) {
1.60 nicm 747: if (winlink_find_by_window(&s->windows, w) != NULL)
1.51 nicm 748: ARRAY_ADD(&ss, s);
749: }
750: s = cmd_choose_session_list(&ss);
751: ARRAY_FREE(&ss);
752: if (wlp != NULL)
1.60 nicm 753: *wlp = winlink_find_by_window(&s->windows, w);
1.51 nicm 754: return (s);
755: }
756:
1.5 nicm 757: /* Find the target session or report an error and return NULL. */
1.1 nicm 758: struct session *
1.80 nicm 759: cmd_find_session(struct cmd_q *cmdq, const char *arg, int prefer_unattached)
1.1 nicm 760: {
1.51 nicm 761: struct session *s;
762: struct window_pane *wp;
1.60 nicm 763: struct window *w;
1.51 nicm 764: struct client *c;
765: char *tmparg;
766: size_t arglen;
767: int ambiguous;
1.1 nicm 768:
1.5 nicm 769: /* A NULL argument means the current session. */
1.1 nicm 770: if (arg == NULL)
1.80 nicm 771: return (cmd_current_session(cmdq, prefer_unattached));
1.5 nicm 772:
1.60 nicm 773: /* Lookup as pane id or window id. */
1.51 nicm 774: if ((wp = cmd_lookup_paneid(arg)) != NULL)
1.80 nicm 775: return (cmd_window_session(cmdq, wp->window, NULL));
1.60 nicm 776: if ((w = cmd_lookup_windowid(arg)) != NULL)
1.80 nicm 777: return (cmd_window_session(cmdq, w, NULL));
1.51 nicm 778:
1.5 nicm 779: /* Trim a single trailing colon if any. */
1.54 nicm 780: tmparg = xstrdup(arg);
1.5 nicm 781: arglen = strlen(tmparg);
782: if (arglen != 0 && tmparg[arglen - 1] == ':')
783: tmparg[arglen - 1] = '\0';
784:
1.53 nicm 785: /* An empty session name is the current session. */
786: if (*tmparg == '\0') {
1.68 nicm 787: free(tmparg);
1.80 nicm 788: return (cmd_current_session(cmdq, prefer_unattached));
1.53 nicm 789: }
790:
1.5 nicm 791: /* Find the session, if any. */
792: s = cmd_lookup_session(tmparg, &ambiguous);
793:
794: /* If it doesn't, try to match it as a client. */
795: if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
796: s = c->session;
797:
798: /* If no session found, report an error. */
799: if (s == NULL) {
800: if (ambiguous)
1.80 nicm 801: cmdq_error(cmdq, "more than one session: %s", tmparg);
1.5 nicm 802: else
1.80 nicm 803: cmdq_error(cmdq, "session not found: %s", tmparg);
1.1 nicm 804: }
1.5 nicm 805:
1.68 nicm 806: free(tmparg);
1.1 nicm 807: return (s);
808: }
809:
1.5 nicm 810: /* Find the target session and window or report an error and return NULL. */
1.1 nicm 811: struct winlink *
1.80 nicm 812: cmd_find_window(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.1 nicm 813: {
1.51 nicm 814: struct session *s;
815: struct winlink *wl;
816: struct window_pane *wp;
817: const char *winptr;
818: char *sessptr = NULL;
819: int ambiguous = 0;
1.5 nicm 820:
821: /*
822: * Find the current session. There must always be a current session, if
823: * it can't be found, report an error.
824: */
1.80 nicm 825: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
826: cmdq_error(cmdq, "can't establish current session");
1.5 nicm 827: return (NULL);
828: }
829:
830: /* A NULL argument means the current session and window. */
831: if (arg == NULL) {
832: if (sp != NULL)
833: *sp = s;
834: return (s->curw);
835: }
836:
1.51 nicm 837: /* Lookup as pane id. */
838: if ((wp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 839: s = cmd_window_session(cmdq, wp->window, &wl);
1.51 nicm 840: if (sp != NULL)
841: *sp = s;
842: return (wl);
843: }
844:
1.5 nicm 845: /* Time to look at the argument. If it is empty, that is an error. */
846: if (*arg == '\0')
847: goto not_found;
848:
1.8 nicm 849: /* Find the separating colon and split into window and session. */
1.5 nicm 850: winptr = strchr(arg, ':');
851: if (winptr == NULL)
1.8 nicm 852: goto no_colon;
853: winptr++; /* skip : */
854: sessptr = xstrdup(arg);
855: *strchr(sessptr, ':') = '\0';
1.5 nicm 856:
857: /* Try to lookup the session if present. */
1.8 nicm 858: if (*sessptr != '\0') {
859: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 860: goto no_session;
861: }
862: if (sp != NULL)
863: *sp = s;
864:
865: /*
866: * Then work out the window. An empty string is the current window,
1.38 nicm 867: * otherwise try special cases then to look it up in the session.
1.5 nicm 868: */
1.8 nicm 869: if (*winptr == '\0')
1.5 nicm 870: wl = s->curw;
1.38 nicm 871: else if (winptr[0] == '!' && winptr[1] == '\0')
872: wl = TAILQ_FIRST(&s->lastw);
1.73 nicm 873: else if (winptr[0] == '^' && winptr[1] == '\0')
874: wl = RB_MIN(winlinks, &s->windows);
875: else if (winptr[0] == '$' && winptr[1] == '\0')
876: wl = RB_MAX(winlinks, &s->windows);
1.43 nicm 877: else if (winptr[0] == '+' || winptr[0] == '-')
878: wl = cmd_find_window_offset(winptr, s, &ambiguous);
879: else
1.38 nicm 880: wl = cmd_lookup_window(s, winptr, &ambiguous);
881: if (wl == NULL)
1.5 nicm 882: goto not_found;
1.35 nicm 883:
1.5 nicm 884: if (sessptr != NULL)
1.68 nicm 885: free(sessptr);
1.5 nicm 886: return (wl);
887:
1.8 nicm 888: no_colon:
1.38 nicm 889: /*
890: * No colon in the string, first try special cases, then as a window
891: * and lastly as a session.
892: */
893: if (arg[0] == '!' && arg[1] == '\0') {
894: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
895: goto not_found;
1.41 nicm 896: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 897: if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
1.41 nicm 898: goto lookup_session;
899: } else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
900: goto lookup_session;
1.8 nicm 901:
902: if (sp != NULL)
903: *sp = s;
904:
905: return (wl);
906:
1.41 nicm 907: lookup_session:
908: if (ambiguous)
909: goto not_found;
1.53 nicm 910: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 911: goto no_session;
912:
913: if (sp != NULL)
914: *sp = s;
915:
916: return (s->curw);
917:
1.5 nicm 918: no_session:
919: if (ambiguous)
1.80 nicm 920: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 921: else
1.80 nicm 922: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 923: free(sessptr);
1.5 nicm 924: return (NULL);
925:
926: not_found:
927: if (ambiguous)
1.80 nicm 928: cmdq_error(cmdq, "multiple windows: %s", arg);
1.5 nicm 929: else
1.80 nicm 930: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 931: free(sessptr);
1.5 nicm 932: return (NULL);
933: }
1.1 nicm 934:
1.43 nicm 935: struct winlink *
936: cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
937: {
938: struct winlink *wl;
939: int offset = 1;
940:
941: if (winptr[1] != '\0')
942: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
943: if (offset == 0)
944: wl = cmd_lookup_window(s, winptr, ambiguous);
945: else {
946: if (winptr[0] == '+')
947: wl = winlink_next_by_number(s->curw, s, offset);
948: else
949: wl = winlink_previous_by_number(s->curw, s, offset);
950: }
951:
952: return (wl);
953: }
954:
1.5 nicm 955: /*
956: * Find the target session and window index, whether or not it exists in the
957: * session. Return -2 on error or -1 if no window index is specified. This is
1.8 nicm 958: * used when parsing an argument for a window target that may not exist (for
959: * example if it is going to be created).
1.5 nicm 960: */
961: int
1.80 nicm 962: cmd_find_index(struct cmd_q *cmdq, const char *arg, struct session **sp)
1.5 nicm 963: {
964: struct session *s;
1.38 nicm 965: struct winlink *wl;
1.8 nicm 966: const char *winptr;
1.5 nicm 967: char *sessptr = NULL;
968: int idx, ambiguous = 0;
969:
970: /*
971: * Find the current session. There must always be a current session, if
972: * it can't be found, report an error.
973: */
1.80 nicm 974: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
975: cmdq_error(cmdq, "can't establish current session");
1.9 nicm 976: return (-2);
1.1 nicm 977: }
1.5 nicm 978:
979: /* A NULL argument means the current session and "no window" (-1). */
980: if (arg == NULL) {
981: if (sp != NULL)
982: *sp = s;
983: return (-1);
984: }
985:
986: /* Time to look at the argument. If it is empty, that is an error. */
987: if (*arg == '\0')
988: goto not_found;
989:
990: /* Find the separating colon. If none, assume the current session. */
991: winptr = strchr(arg, ':');
992: if (winptr == NULL)
1.8 nicm 993: goto no_colon;
994: winptr++; /* skip : */
995: sessptr = xstrdup(arg);
996: *strchr(sessptr, ':') = '\0';
1.5 nicm 997:
998: /* Try to lookup the session if present. */
999: if (sessptr != NULL && *sessptr != '\0') {
1.8 nicm 1000: if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
1.5 nicm 1001: goto no_session;
1002: }
1.1 nicm 1003: if (sp != NULL)
1004: *sp = s;
1005:
1.5 nicm 1006: /*
1.8 nicm 1007: * Then work out the window. An empty string is a new window otherwise
1008: * try to look it up in the session.
1.5 nicm 1009: */
1.8 nicm 1010: if (*winptr == '\0')
1.38 nicm 1011: idx = -1;
1012: else if (winptr[0] == '!' && winptr[1] == '\0') {
1013: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1014: goto not_found;
1015: idx = wl->idx;
1.41 nicm 1016: } else if (winptr[0] == '+' || winptr[0] == '-') {
1.43 nicm 1017: if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
1.41 nicm 1018: goto invalid_index;
1019: } else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
1020: goto invalid_index;
1.35 nicm 1021:
1.68 nicm 1022: free(sessptr);
1.5 nicm 1023: return (idx);
1024:
1.8 nicm 1025: no_colon:
1.38 nicm 1026: /*
1027: * No colon in the string, first try special cases, then as a window
1028: * and lastly as a session.
1029: */
1030: if (arg[0] == '!' && arg[1] == '\0') {
1031: if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
1032: goto not_found;
1033: idx = wl->idx;
1.41 nicm 1034: } else if (arg[0] == '+' || arg[0] == '-') {
1.43 nicm 1035: if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
1.41 nicm 1036: goto lookup_session;
1037: } else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
1038: goto lookup_session;
1.8 nicm 1039:
1040: if (sp != NULL)
1041: *sp = s;
1042:
1043: return (idx);
1044:
1.41 nicm 1045: lookup_session:
1046: if (ambiguous)
1047: goto not_found;
1.53 nicm 1048: if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
1.41 nicm 1049: goto no_session;
1050:
1051: if (sp != NULL)
1052: *sp = s;
1053:
1054: return (-1);
1055:
1.5 nicm 1056: no_session:
1057: if (ambiguous)
1.80 nicm 1058: cmdq_error(cmdq, "multiple sessions: %s", arg);
1.5 nicm 1059: else
1.80 nicm 1060: cmdq_error(cmdq, "session not found: %s", arg);
1.68 nicm 1061: free(sessptr);
1.5 nicm 1062: return (-2);
1063:
1.41 nicm 1064: invalid_index:
1065: if (ambiguous)
1066: goto not_found;
1.80 nicm 1067: cmdq_error(cmdq, "invalid index: %s", arg);
1.41 nicm 1068:
1.68 nicm 1069: free(sessptr);
1.41 nicm 1070: return (-2);
1071:
1.5 nicm 1072: not_found:
1073: if (ambiguous)
1.80 nicm 1074: cmdq_error(cmdq, "multiple windows: %s", arg);
1.1 nicm 1075: else
1.80 nicm 1076: cmdq_error(cmdq, "window not found: %s", arg);
1.68 nicm 1077: free(sessptr);
1.5 nicm 1078: return (-2);
1.12 nicm 1079: }
1080:
1.43 nicm 1081: int
1082: cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
1083: {
1084: int idx, offset = 1;
1085:
1086: if (winptr[1] != '\0')
1087: offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
1088: if (offset == 0)
1089: idx = cmd_lookup_index(s, winptr, ambiguous);
1090: else {
1091: if (winptr[0] == '+') {
1092: if (s->curw->idx == INT_MAX)
1093: idx = cmd_lookup_index(s, winptr, ambiguous);
1094: else
1095: idx = s->curw->idx + offset;
1096: } else {
1097: if (s->curw->idx == 0)
1098: idx = cmd_lookup_index(s, winptr, ambiguous);
1099: else
1100: idx = s->curw->idx - offset;
1101: }
1102: }
1103:
1104: return (idx);
1105: }
1106:
1.12 nicm 1107: /*
1108: * Find the target session, window and pane number or report an error and
1109: * return NULL. The pane number is separated from the session:window by a .,
1110: * such as mysession:mywindow.0.
1111: */
1112: struct winlink *
1.80 nicm 1113: cmd_find_pane(struct cmd_q *cmdq,
1.12 nicm 1114: const char *arg, struct session **sp, struct window_pane **wpp)
1115: {
1.55 nicm 1116: struct session *s;
1117: struct winlink *wl;
1118: const char *period, *errstr;
1119: char *winptr, *paneptr;
1120: u_int idx;
1.12 nicm 1121:
1122: /* Get the current session. */
1.80 nicm 1123: if ((s = cmd_current_session(cmdq, 0)) == NULL) {
1124: cmdq_error(cmdq, "can't establish current session");
1.12 nicm 1125: return (NULL);
1126: }
1127: if (sp != NULL)
1128: *sp = s;
1129:
1130: /* A NULL argument means the current session, window and pane. */
1131: if (arg == NULL) {
1132: *wpp = s->curw->window->active;
1133: return (s->curw);
1.51 nicm 1134: }
1135:
1136: /* Lookup as pane id. */
1137: if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
1.80 nicm 1138: s = cmd_window_session(cmdq, (*wpp)->window, &wl);
1.51 nicm 1139: if (sp != NULL)
1140: *sp = s;
1141: return (wl);
1.12 nicm 1142: }
1143:
1144: /* Look for a separating period. */
1145: if ((period = strrchr(arg, '.')) == NULL)
1146: goto no_period;
1147:
1148: /* Pull out the window part and parse it. */
1149: winptr = xstrdup(arg);
1150: winptr[period - arg] = '\0';
1151: if (*winptr == '\0')
1152: wl = s->curw;
1.80 nicm 1153: else if ((wl = cmd_find_window(cmdq, winptr, sp)) == NULL)
1.12 nicm 1154: goto error;
1155:
1156: /* Find the pane section and look it up. */
1157: paneptr = winptr + (period - arg) + 1;
1158: if (*paneptr == '\0')
1159: *wpp = wl->window->active;
1.43 nicm 1160: else if (paneptr[0] == '+' || paneptr[0] == '-')
1161: *wpp = cmd_find_pane_offset(paneptr, wl);
1162: else {
1.12 nicm 1163: idx = strtonum(paneptr, 0, INT_MAX, &errstr);
1.36 nicm 1164: if (errstr != NULL)
1165: goto lookup_string;
1.12 nicm 1166: *wpp = window_pane_at_index(wl->window, idx);
1.36 nicm 1167: if (*wpp == NULL)
1168: goto lookup_string;
1.12 nicm 1169: }
1170:
1.68 nicm 1171: free(winptr);
1.12 nicm 1172: return (wl);
1173:
1.36 nicm 1174: lookup_string:
1175: /* Try pane string description. */
1.55 nicm 1176: if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
1.80 nicm 1177: cmdq_error(cmdq, "can't find pane: %s", paneptr);
1.36 nicm 1178: goto error;
1179: }
1180:
1.68 nicm 1181: free(winptr);
1.39 nicm 1182: return (wl);
1.36 nicm 1183:
1.12 nicm 1184: no_period:
1185: /* Try as a pane number alone. */
1186: idx = strtonum(arg, 0, INT_MAX, &errstr);
1187: if (errstr != NULL)
1188: goto lookup_window;
1189:
1190: /* Try index in the current session and window. */
1191: if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
1192: goto lookup_window;
1.35 nicm 1193:
1.12 nicm 1194: return (s->curw);
1195:
1196: lookup_window:
1.36 nicm 1197: /* Try pane string description. */
1.55 nicm 1198: if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
1.36 nicm 1199: return (s->curw);
1200:
1.12 nicm 1201: /* Try as a window and use the active pane. */
1.80 nicm 1202: if ((wl = cmd_find_window(cmdq, arg, sp)) != NULL)
1.12 nicm 1203: *wpp = wl->window->active;
1204: return (wl);
1.35 nicm 1205:
1.12 nicm 1206: error:
1.68 nicm 1207: free(winptr);
1.12 nicm 1208: return (NULL);
1.43 nicm 1209: }
1210:
1211: struct window_pane *
1212: cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
1213: {
1214: struct window *w = wl->window;
1215: struct window_pane *wp = w->active;
1216: u_int offset = 1;
1217:
1218: if (paneptr[1] != '\0')
1219: offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
1220: if (offset > 0) {
1221: if (paneptr[0] == '+')
1222: wp = window_pane_next_by_number(w, wp, offset);
1223: else
1224: wp = window_pane_previous_by_number(w, wp, offset);
1225: }
1226:
1227: return (wp);
1.15 nicm 1228: }
1229:
1230: /* Replace the first %% or %idx in template by s. */
1231: char *
1.75 nicm 1232: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 1233: {
1.75 nicm 1234: char ch, *buf;
1235: const char *ptr;
1.84 nicm 1236: int replaced;
1237: size_t len;
1.15 nicm 1238:
1.76 nicm 1239: if (strchr(template, '%') == NULL)
1.15 nicm 1240: return (xstrdup(template));
1241:
1242: buf = xmalloc(1);
1243: *buf = '\0';
1244: len = 0;
1245: replaced = 0;
1246:
1247: ptr = template;
1248: while (*ptr != '\0') {
1249: switch (ch = *ptr++) {
1250: case '%':
1251: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
1252: if (*ptr != '%' || replaced)
1253: break;
1254: replaced = 1;
1255: }
1256: ptr++;
1257:
1258: len += strlen(s);
1259: buf = xrealloc(buf, 1, len + 1);
1260: strlcat(buf, s, len + 1);
1261: continue;
1262: }
1263: buf = xrealloc(buf, 1, len + 2);
1264: buf[len++] = ch;
1265: buf[len] = '\0';
1266: }
1267:
1268: return (buf);
1.1 nicm 1269: }
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