Annotation of src/usr.bin/tmux/cmd.c, Revision 1.138
1.138 ! nicm 1: /* $OpenBSD: cmd.c,v 1.137 2017/04/21 20:26:34 nicm Exp $ */
1.1 nicm 2:
3: /*
1.120 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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"
1.105 nicm 30:
31: extern const struct cmd_entry cmd_attach_session_entry;
32: extern const struct cmd_entry cmd_bind_key_entry;
33: extern const struct cmd_entry cmd_break_pane_entry;
34: extern const struct cmd_entry cmd_capture_pane_entry;
35: extern const struct cmd_entry cmd_choose_buffer_entry;
36: extern const struct cmd_entry cmd_choose_client_entry;
37: extern const struct cmd_entry cmd_choose_session_entry;
38: extern const struct cmd_entry cmd_choose_tree_entry;
39: extern const struct cmd_entry cmd_choose_window_entry;
40: extern const struct cmd_entry cmd_clear_history_entry;
41: extern const struct cmd_entry cmd_clock_mode_entry;
42: extern const struct cmd_entry cmd_command_prompt_entry;
43: extern const struct cmd_entry cmd_confirm_before_entry;
44: extern const struct cmd_entry cmd_copy_mode_entry;
45: extern const struct cmd_entry cmd_delete_buffer_entry;
46: extern const struct cmd_entry cmd_detach_client_entry;
47: extern const struct cmd_entry cmd_display_message_entry;
48: extern const struct cmd_entry cmd_display_panes_entry;
49: extern const struct cmd_entry cmd_down_pane_entry;
50: extern const struct cmd_entry cmd_find_window_entry;
51: extern const struct cmd_entry cmd_has_session_entry;
52: extern const struct cmd_entry cmd_if_shell_entry;
53: extern const struct cmd_entry cmd_join_pane_entry;
54: extern const struct cmd_entry cmd_kill_pane_entry;
55: extern const struct cmd_entry cmd_kill_server_entry;
56: extern const struct cmd_entry cmd_kill_session_entry;
57: extern const struct cmd_entry cmd_kill_window_entry;
58: extern const struct cmd_entry cmd_last_pane_entry;
59: extern const struct cmd_entry cmd_last_window_entry;
60: extern const struct cmd_entry cmd_link_window_entry;
61: extern const struct cmd_entry cmd_list_buffers_entry;
62: extern const struct cmd_entry cmd_list_clients_entry;
63: extern const struct cmd_entry cmd_list_commands_entry;
64: extern const struct cmd_entry cmd_list_keys_entry;
65: extern const struct cmd_entry cmd_list_panes_entry;
66: extern const struct cmd_entry cmd_list_sessions_entry;
67: extern const struct cmd_entry cmd_list_windows_entry;
68: extern const struct cmd_entry cmd_load_buffer_entry;
69: extern const struct cmd_entry cmd_lock_client_entry;
70: extern const struct cmd_entry cmd_lock_server_entry;
71: extern const struct cmd_entry cmd_lock_session_entry;
72: extern const struct cmd_entry cmd_move_pane_entry;
73: extern const struct cmd_entry cmd_move_window_entry;
74: extern const struct cmd_entry cmd_new_session_entry;
75: extern const struct cmd_entry cmd_new_window_entry;
76: extern const struct cmd_entry cmd_next_layout_entry;
77: extern const struct cmd_entry cmd_next_window_entry;
78: extern const struct cmd_entry cmd_paste_buffer_entry;
79: extern const struct cmd_entry cmd_pipe_pane_entry;
80: extern const struct cmd_entry cmd_previous_layout_entry;
81: extern const struct cmd_entry cmd_previous_window_entry;
82: extern const struct cmd_entry cmd_refresh_client_entry;
83: extern const struct cmd_entry cmd_rename_session_entry;
84: extern const struct cmd_entry cmd_rename_window_entry;
85: extern const struct cmd_entry cmd_resize_pane_entry;
86: extern const struct cmd_entry cmd_respawn_pane_entry;
87: extern const struct cmd_entry cmd_respawn_window_entry;
88: extern const struct cmd_entry cmd_rotate_window_entry;
89: extern const struct cmd_entry cmd_run_shell_entry;
90: extern const struct cmd_entry cmd_save_buffer_entry;
91: extern const struct cmd_entry cmd_select_layout_entry;
92: extern const struct cmd_entry cmd_select_pane_entry;
93: extern const struct cmd_entry cmd_select_window_entry;
94: extern const struct cmd_entry cmd_send_keys_entry;
95: extern const struct cmd_entry cmd_send_prefix_entry;
96: extern const struct cmd_entry cmd_set_buffer_entry;
97: extern const struct cmd_entry cmd_set_environment_entry;
1.107 nicm 98: extern const struct cmd_entry cmd_set_hook_entry;
1.105 nicm 99: extern const struct cmd_entry cmd_set_option_entry;
100: extern const struct cmd_entry cmd_set_window_option_entry;
101: extern const struct cmd_entry cmd_show_buffer_entry;
102: extern const struct cmd_entry cmd_show_environment_entry;
1.107 nicm 103: extern const struct cmd_entry cmd_show_hooks_entry;
1.105 nicm 104: extern const struct cmd_entry cmd_show_messages_entry;
105: extern const struct cmd_entry cmd_show_options_entry;
106: extern const struct cmd_entry cmd_show_window_options_entry;
107: extern const struct cmd_entry cmd_source_file_entry;
108: extern const struct cmd_entry cmd_split_window_entry;
109: extern const struct cmd_entry cmd_start_server_entry;
110: extern const struct cmd_entry cmd_suspend_client_entry;
111: extern const struct cmd_entry cmd_swap_pane_entry;
112: extern const struct cmd_entry cmd_swap_window_entry;
113: extern const struct cmd_entry cmd_switch_client_entry;
114: extern const struct cmd_entry cmd_unbind_key_entry;
115: extern const struct cmd_entry cmd_unlink_window_entry;
116: extern const struct cmd_entry cmd_up_pane_entry;
117: extern const struct cmd_entry cmd_wait_for_entry;
1.1 nicm 118:
119: const struct cmd_entry *cmd_table[] = {
120: &cmd_attach_session_entry,
121: &cmd_bind_key_entry,
122: &cmd_break_pane_entry,
1.34 nicm 123: &cmd_capture_pane_entry,
1.42 nicm 124: &cmd_choose_buffer_entry,
1.15 nicm 125: &cmd_choose_client_entry,
1.1 nicm 126: &cmd_choose_session_entry,
1.67 nicm 127: &cmd_choose_tree_entry,
1.1 nicm 128: &cmd_choose_window_entry,
129: &cmd_clear_history_entry,
130: &cmd_clock_mode_entry,
131: &cmd_command_prompt_entry,
132: &cmd_confirm_before_entry,
133: &cmd_copy_mode_entry,
134: &cmd_delete_buffer_entry,
135: &cmd_detach_client_entry,
1.7 nicm 136: &cmd_display_message_entry,
1.16 nicm 137: &cmd_display_panes_entry,
1.1 nicm 138: &cmd_find_window_entry,
139: &cmd_has_session_entry,
1.4 nicm 140: &cmd_if_shell_entry,
1.37 nicm 141: &cmd_join_pane_entry,
1.1 nicm 142: &cmd_kill_pane_entry,
143: &cmd_kill_server_entry,
144: &cmd_kill_session_entry,
145: &cmd_kill_window_entry,
1.45 nicm 146: &cmd_last_pane_entry,
1.1 nicm 147: &cmd_last_window_entry,
148: &cmd_link_window_entry,
149: &cmd_list_buffers_entry,
150: &cmd_list_clients_entry,
151: &cmd_list_commands_entry,
152: &cmd_list_keys_entry,
1.23 nicm 153: &cmd_list_panes_entry,
1.1 nicm 154: &cmd_list_sessions_entry,
155: &cmd_list_windows_entry,
156: &cmd_load_buffer_entry,
1.19 nicm 157: &cmd_lock_client_entry,
1.1 nicm 158: &cmd_lock_server_entry,
1.19 nicm 159: &cmd_lock_session_entry,
1.63 nicm 160: &cmd_move_pane_entry,
1.1 nicm 161: &cmd_move_window_entry,
162: &cmd_new_session_entry,
163: &cmd_new_window_entry,
164: &cmd_next_layout_entry,
165: &cmd_next_window_entry,
166: &cmd_paste_buffer_entry,
1.24 nicm 167: &cmd_pipe_pane_entry,
1.1 nicm 168: &cmd_previous_layout_entry,
169: &cmd_previous_window_entry,
170: &cmd_refresh_client_entry,
171: &cmd_rename_session_entry,
172: &cmd_rename_window_entry,
173: &cmd_resize_pane_entry,
1.56 nicm 174: &cmd_respawn_pane_entry,
1.1 nicm 175: &cmd_respawn_window_entry,
176: &cmd_rotate_window_entry,
1.17 nicm 177: &cmd_run_shell_entry,
1.1 nicm 178: &cmd_save_buffer_entry,
179: &cmd_select_layout_entry,
180: &cmd_select_pane_entry,
181: &cmd_select_window_entry,
182: &cmd_send_keys_entry,
183: &cmd_send_prefix_entry,
184: &cmd_set_buffer_entry,
1.13 nicm 185: &cmd_set_environment_entry,
1.107 nicm 186: &cmd_set_hook_entry,
1.1 nicm 187: &cmd_set_option_entry,
188: &cmd_set_window_option_entry,
189: &cmd_show_buffer_entry,
1.13 nicm 190: &cmd_show_environment_entry,
1.107 nicm 191: &cmd_show_hooks_entry,
1.32 nicm 192: &cmd_show_messages_entry,
1.1 nicm 193: &cmd_show_options_entry,
194: &cmd_show_window_options_entry,
195: &cmd_source_file_entry,
196: &cmd_split_window_entry,
197: &cmd_start_server_entry,
198: &cmd_suspend_client_entry,
199: &cmd_swap_pane_entry,
200: &cmd_swap_window_entry,
201: &cmd_switch_client_entry,
202: &cmd_unbind_key_entry,
203: &cmd_unlink_window_entry,
1.82 nicm 204: &cmd_wait_for_entry,
1.1 nicm 205: NULL
206: };
207:
1.10 nicm 208: int
209: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
210: {
211: size_t arglen;
212: int i;
1.91 nicm 213:
214: if (argc == 0)
215: return (0);
1.10 nicm 216:
217: *buf = '\0';
218: for (i = 0; i < argc; i++) {
219: if (strlcpy(buf, argv[i], len) >= len)
220: return (-1);
221: arglen = strlen(argv[i]) + 1;
222: buf += arglen;
223: len -= arglen;
224: }
225:
226: return (0);
227: }
228:
229: int
230: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
231: {
232: int i;
233: size_t arglen;
234:
235: if (argc == 0)
236: return (0);
237: *argv = xcalloc(argc, sizeof **argv);
238:
239: buf[len - 1] = '\0';
240: for (i = 0; i < argc; i++) {
241: if (len == 0) {
242: cmd_free_argv(argc, *argv);
243: return (-1);
244: }
245:
246: arglen = strlen(buf) + 1;
247: (*argv)[i] = xstrdup(buf);
248: buf += arglen;
249: len -= arglen;
250: }
251:
252: return (0);
1.46 nicm 253: }
254:
255: char **
1.93 nicm 256: cmd_copy_argv(int argc, char **argv)
1.46 nicm 257: {
258: char **new_argv;
259: int i;
260:
261: if (argc == 0)
262: return (NULL);
1.94 nicm 263: new_argv = xcalloc(argc + 1, sizeof *new_argv);
1.46 nicm 264: for (i = 0; i < argc; i++) {
265: if (argv[i] != NULL)
266: new_argv[i] = xstrdup(argv[i]);
267: }
268: return (new_argv);
1.10 nicm 269: }
270:
271: void
272: cmd_free_argv(int argc, char **argv)
273: {
274: int i;
275:
276: if (argc == 0)
1.35 nicm 277: return;
1.68 nicm 278: for (i = 0; i < argc; i++)
279: free(argv[i]);
280: free(argv);
1.94 nicm 281: }
282:
283: char *
284: cmd_stringify_argv(int argc, char **argv)
285: {
286: char *buf;
287: int i;
288: size_t len;
289:
290: if (argc == 0)
291: return (xstrdup(""));
292:
293: len = 0;
294: buf = NULL;
295:
296: for (i = 0; i < argc; i++) {
297: len += strlen(argv[i]) + 1;
1.98 nicm 298: buf = xrealloc(buf, len);
1.94 nicm 299:
300: if (i == 0)
301: *buf = '\0';
302: else
303: strlcat(buf, " ", len);
304: strlcat(buf, argv[i], len);
305: }
306: return (buf);
1.10 nicm 307: }
308:
1.135 nicm 309: static int
310: cmd_try_alias(int *argc, char ***argv)
311: {
312: struct options_entry *o;
313: int old_argc = *argc, new_argc;
314: char **old_argv = *argv, **new_argv;
315: u_int size, idx;
316: int i;
317: size_t wanted;
318: const char *s, *cp = NULL;
319:
320: o = options_get_only(global_options, "command-alias");
321: if (o == NULL || options_array_size(o, &size) == -1 || size == 0)
322: return (-1);
323:
324: wanted = strlen(old_argv[0]);
325: for (idx = 0; idx < size; idx++) {
326: s = options_array_get(o, idx);
327: if (s == NULL)
328: continue;
329:
330: cp = strchr(s, '=');
331: if (cp == NULL || (size_t)(cp - s) != wanted)
332: continue;
333: if (strncmp(old_argv[0], s, wanted) == 0)
334: break;
335: }
336: if (idx == size)
337: return (-1);
338:
339: if (cmd_string_split(cp + 1, &new_argc, &new_argv) != 0)
340: return (-1);
341:
342: *argc = new_argc + old_argc - 1;
343: *argv = xcalloc((*argc) + 1, sizeof **argv);
344:
345: for (i = 0; i < new_argc; i++)
346: (*argv)[i] = xstrdup(new_argv[i]);
347: for (i = 1; i < old_argc; i++)
348: (*argv)[new_argc + i - 1] = xstrdup(old_argv[i]);
349:
350: log_debug("alias: %s=%s", old_argv[0], cp + 1);
351: for (i = 0; i < *argc; i++)
352: log_debug("alias: argv[%d] = %s", i, (*argv)[i]);
353:
354: cmd_free_argv(new_argc, new_argv);
355: return (0);
356: }
357:
1.1 nicm 358: struct cmd *
1.80 nicm 359: cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
1.1 nicm 360: {
1.135 nicm 361: const char *name;
1.1 nicm 362: const struct cmd_entry **entryp, *entry;
1.27 deraadt 363: struct cmd *cmd;
1.49 nicm 364: struct args *args;
1.1 nicm 365: char s[BUFSIZ];
1.135 nicm 366: int ambiguous, allocated = 0;
1.1 nicm 367:
368: *cause = NULL;
1.2 nicm 369: if (argc == 0) {
370: xasprintf(cause, "no command");
1.1 nicm 371: return (NULL);
1.2 nicm 372: }
1.135 nicm 373: name = argv[0];
1.1 nicm 374:
1.135 nicm 375: retry:
376: ambiguous = 0;
1.1 nicm 377: entry = NULL;
378: for (entryp = cmd_table; *entryp != NULL; entryp++) {
379: if ((*entryp)->alias != NULL &&
380: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 381: ambiguous = 0;
1.1 nicm 382: entry = *entryp;
383: break;
384: }
385:
386: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
387: continue;
388: if (entry != NULL)
1.3 nicm 389: ambiguous = 1;
1.1 nicm 390: entry = *entryp;
391:
392: /* Bail now if an exact match. */
393: if (strcmp(entry->name, argv[0]) == 0)
394: break;
395: }
1.135 nicm 396: if ((ambiguous || entry == NULL) &&
397: server_proc != NULL &&
398: !allocated &&
399: cmd_try_alias(&argc, &argv) == 0) {
400: allocated = 1;
401: goto retry;
402: }
1.3 nicm 403: if (ambiguous)
404: goto ambiguous;
1.1 nicm 405: if (entry == NULL) {
1.135 nicm 406: xasprintf(cause, "unknown command: %s", name);
1.1 nicm 407: return (NULL);
408: }
409:
1.117 nicm 410: args = args_parse(entry->args.template, argc, argv);
1.49 nicm 411: if (args == NULL)
412: goto usage;
1.117 nicm 413: if (entry->args.lower != -1 && args->argc < entry->args.lower)
1.49 nicm 414: goto usage;
1.117 nicm 415: if (entry->args.upper != -1 && args->argc > entry->args.upper)
1.49 nicm 416: goto usage;
1.1 nicm 417:
1.80 nicm 418: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 419: cmd->entry = entry;
1.49 nicm 420: cmd->args = args;
1.80 nicm 421:
422: if (file != NULL)
423: cmd->file = xstrdup(file);
424: cmd->line = line;
425:
1.135 nicm 426: if (allocated)
427: cmd_free_argv(argc, argv);
1.1 nicm 428: return (cmd);
429:
430: ambiguous:
431: *s = '\0';
432: for (entryp = cmd_table; *entryp != NULL; entryp++) {
433: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
434: continue;
435: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
436: break;
437: if (strlcat(s, ", ", sizeof s) >= sizeof s)
438: break;
439: }
440: s[strlen(s) - 2] = '\0';
1.135 nicm 441: xasprintf(cause, "ambiguous command: %s, could be: %s", name, s);
1.1 nicm 442: return (NULL);
443:
444: usage:
1.49 nicm 445: if (args != NULL)
446: args_free(args);
1.1 nicm 447: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
448: return (NULL);
449: }
450:
1.106 nicm 451: char *
452: cmd_print(struct cmd *cmd)
1.1 nicm 453: {
1.106 nicm 454: char *out, *s;
455:
456: s = args_print(cmd->args);
457: if (*s != '\0')
458: xasprintf(&out, "%s %s", cmd->entry->name, s);
459: else
460: out = xstrdup(cmd->entry->name);
461: free(s);
1.49 nicm 462:
1.106 nicm 463: return (out);
1.1 nicm 464: }
465:
1.99 nicm 466: /* Adjust current mouse position for a pane. */
467: int
468: cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,
469: u_int *yp, int last)
470: {
471: u_int x, y;
472:
473: if (last) {
474: x = m->lx;
475: y = m->ly;
476: } else {
477: x = m->x;
478: y = m->y;
479: }
480:
481: if (m->statusat == 0 && y > 0)
482: y--;
483: else if (m->statusat > 0 && y >= (u_int)m->statusat)
484: y = m->statusat - 1;
485:
486: if (x < wp->xoff || x >= wp->xoff + wp->sx)
487: return (-1);
488: if (y < wp->yoff || y >= wp->yoff + wp->sy)
489: return (-1);
490:
1.123 nicm 491: if (xp != NULL)
492: *xp = x - wp->xoff;
493: if (yp != NULL)
494: *yp = y - wp->yoff;
1.99 nicm 495: return (0);
496: }
497:
498: /* Get current mouse window if any. */
499: struct winlink *
500: cmd_mouse_window(struct mouse_event *m, struct session **sp)
501: {
502: struct session *s;
503: struct window *w;
504:
505: if (!m->valid || m->s == -1 || m->w == -1)
506: return (NULL);
507: if ((s = session_find_by_id(m->s)) == NULL)
508: return (NULL);
509: if ((w = window_find_by_id(m->w)) == NULL)
510: return (NULL);
511:
512: if (sp != NULL)
513: *sp = s;
514: return (winlink_find_by_window(&s->windows, w));
515: }
516:
517: /* Get current mouse pane if any. */
518: struct window_pane *
1.104 nicm 519: cmd_mouse_pane(struct mouse_event *m, struct session **sp,
520: struct winlink **wlp)
1.99 nicm 521: {
522: struct winlink *wl;
523: struct window_pane *wp;
524:
525: if ((wl = cmd_mouse_window(m, sp)) == NULL)
526: return (NULL);
527: if ((wp = window_pane_find_by_id(m->wp)) == NULL)
528: return (NULL);
529: if (!window_has_pane(wl->window, wp))
530: return (NULL);
531:
532: if (wlp != NULL)
533: *wlp = wl;
1.43 nicm 534: return (wp);
1.15 nicm 535: }
536:
537: /* Replace the first %% or %idx in template by s. */
538: char *
1.75 nicm 539: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 540: {
1.75 nicm 541: char ch, *buf;
1.131 nicm 542: const char *ptr, *cp, quote[] = "\"\\$";
1.127 nicm 543: int replaced, quoted;
1.84 nicm 544: size_t len;
1.15 nicm 545:
1.76 nicm 546: if (strchr(template, '%') == NULL)
1.15 nicm 547: return (xstrdup(template));
548:
549: buf = xmalloc(1);
550: *buf = '\0';
551: len = 0;
552: replaced = 0;
553:
554: ptr = template;
555: while (*ptr != '\0') {
556: switch (ch = *ptr++) {
557: case '%':
558: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
559: if (*ptr != '%' || replaced)
560: break;
561: replaced = 1;
562: }
563: ptr++;
564:
1.127 nicm 565: quoted = (*ptr == '%');
566: if (quoted)
567: ptr++;
568:
1.132 nicm 569: buf = xrealloc(buf, len + (strlen(s) * 3) + 1);
1.127 nicm 570: for (cp = s; *cp != '\0'; cp++) {
1.131 nicm 571: if (quoted && strchr(quote, *cp) != NULL)
1.127 nicm 572: buf[len++] = '\\';
1.132 nicm 573: if (quoted && *cp == ';') {
574: buf[len++] = '\\';
575: buf[len++] = '\\';
576: }
1.127 nicm 577: buf[len++] = *cp;
578: }
579: buf[len] = '\0';
1.15 nicm 580: continue;
581: }
1.98 nicm 582: buf = xrealloc(buf, len + 2);
1.15 nicm 583: buf[len++] = ch;
584: buf[len] = '\0';
585: }
586:
587: return (buf);
1.1 nicm 588: }
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