Annotation of src/usr.bin/tmux/cmd.c, Revision 1.139
1.139 ! nicm 1: /* $OpenBSD: cmd.c,v 1.138 2017/04/22 10:22:39 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_tree_entry;
38: extern const struct cmd_entry cmd_clear_history_entry;
39: extern const struct cmd_entry cmd_clock_mode_entry;
40: extern const struct cmd_entry cmd_command_prompt_entry;
41: extern const struct cmd_entry cmd_confirm_before_entry;
42: extern const struct cmd_entry cmd_copy_mode_entry;
43: extern const struct cmd_entry cmd_delete_buffer_entry;
44: extern const struct cmd_entry cmd_detach_client_entry;
45: extern const struct cmd_entry cmd_display_message_entry;
46: extern const struct cmd_entry cmd_display_panes_entry;
47: extern const struct cmd_entry cmd_down_pane_entry;
48: extern const struct cmd_entry cmd_find_window_entry;
49: extern const struct cmd_entry cmd_has_session_entry;
50: extern const struct cmd_entry cmd_if_shell_entry;
51: extern const struct cmd_entry cmd_join_pane_entry;
52: extern const struct cmd_entry cmd_kill_pane_entry;
53: extern const struct cmd_entry cmd_kill_server_entry;
54: extern const struct cmd_entry cmd_kill_session_entry;
55: extern const struct cmd_entry cmd_kill_window_entry;
56: extern const struct cmd_entry cmd_last_pane_entry;
57: extern const struct cmd_entry cmd_last_window_entry;
58: extern const struct cmd_entry cmd_link_window_entry;
59: extern const struct cmd_entry cmd_list_buffers_entry;
60: extern const struct cmd_entry cmd_list_clients_entry;
61: extern const struct cmd_entry cmd_list_commands_entry;
62: extern const struct cmd_entry cmd_list_keys_entry;
63: extern const struct cmd_entry cmd_list_panes_entry;
64: extern const struct cmd_entry cmd_list_sessions_entry;
65: extern const struct cmd_entry cmd_list_windows_entry;
66: extern const struct cmd_entry cmd_load_buffer_entry;
67: extern const struct cmd_entry cmd_lock_client_entry;
68: extern const struct cmd_entry cmd_lock_server_entry;
69: extern const struct cmd_entry cmd_lock_session_entry;
70: extern const struct cmd_entry cmd_move_pane_entry;
71: extern const struct cmd_entry cmd_move_window_entry;
72: extern const struct cmd_entry cmd_new_session_entry;
73: extern const struct cmd_entry cmd_new_window_entry;
74: extern const struct cmd_entry cmd_next_layout_entry;
75: extern const struct cmd_entry cmd_next_window_entry;
76: extern const struct cmd_entry cmd_paste_buffer_entry;
77: extern const struct cmd_entry cmd_pipe_pane_entry;
78: extern const struct cmd_entry cmd_previous_layout_entry;
79: extern const struct cmd_entry cmd_previous_window_entry;
80: extern const struct cmd_entry cmd_refresh_client_entry;
81: extern const struct cmd_entry cmd_rename_session_entry;
82: extern const struct cmd_entry cmd_rename_window_entry;
83: extern const struct cmd_entry cmd_resize_pane_entry;
84: extern const struct cmd_entry cmd_respawn_pane_entry;
85: extern const struct cmd_entry cmd_respawn_window_entry;
86: extern const struct cmd_entry cmd_rotate_window_entry;
87: extern const struct cmd_entry cmd_run_shell_entry;
88: extern const struct cmd_entry cmd_save_buffer_entry;
89: extern const struct cmd_entry cmd_select_layout_entry;
90: extern const struct cmd_entry cmd_select_pane_entry;
91: extern const struct cmd_entry cmd_select_window_entry;
92: extern const struct cmd_entry cmd_send_keys_entry;
93: extern const struct cmd_entry cmd_send_prefix_entry;
94: extern const struct cmd_entry cmd_set_buffer_entry;
95: extern const struct cmd_entry cmd_set_environment_entry;
1.107 nicm 96: extern const struct cmd_entry cmd_set_hook_entry;
1.105 nicm 97: extern const struct cmd_entry cmd_set_option_entry;
98: extern const struct cmd_entry cmd_set_window_option_entry;
99: extern const struct cmd_entry cmd_show_buffer_entry;
100: extern const struct cmd_entry cmd_show_environment_entry;
1.107 nicm 101: extern const struct cmd_entry cmd_show_hooks_entry;
1.105 nicm 102: extern const struct cmd_entry cmd_show_messages_entry;
103: extern const struct cmd_entry cmd_show_options_entry;
104: extern const struct cmd_entry cmd_show_window_options_entry;
105: extern const struct cmd_entry cmd_source_file_entry;
106: extern const struct cmd_entry cmd_split_window_entry;
107: extern const struct cmd_entry cmd_start_server_entry;
108: extern const struct cmd_entry cmd_suspend_client_entry;
109: extern const struct cmd_entry cmd_swap_pane_entry;
110: extern const struct cmd_entry cmd_swap_window_entry;
111: extern const struct cmd_entry cmd_switch_client_entry;
112: extern const struct cmd_entry cmd_unbind_key_entry;
113: extern const struct cmd_entry cmd_unlink_window_entry;
114: extern const struct cmd_entry cmd_up_pane_entry;
115: extern const struct cmd_entry cmd_wait_for_entry;
1.1 nicm 116:
117: const struct cmd_entry *cmd_table[] = {
118: &cmd_attach_session_entry,
119: &cmd_bind_key_entry,
120: &cmd_break_pane_entry,
1.34 nicm 121: &cmd_capture_pane_entry,
1.42 nicm 122: &cmd_choose_buffer_entry,
1.15 nicm 123: &cmd_choose_client_entry,
1.67 nicm 124: &cmd_choose_tree_entry,
1.1 nicm 125: &cmd_clear_history_entry,
126: &cmd_clock_mode_entry,
127: &cmd_command_prompt_entry,
128: &cmd_confirm_before_entry,
129: &cmd_copy_mode_entry,
130: &cmd_delete_buffer_entry,
131: &cmd_detach_client_entry,
1.7 nicm 132: &cmd_display_message_entry,
1.16 nicm 133: &cmd_display_panes_entry,
1.1 nicm 134: &cmd_find_window_entry,
135: &cmd_has_session_entry,
1.4 nicm 136: &cmd_if_shell_entry,
1.37 nicm 137: &cmd_join_pane_entry,
1.1 nicm 138: &cmd_kill_pane_entry,
139: &cmd_kill_server_entry,
140: &cmd_kill_session_entry,
141: &cmd_kill_window_entry,
1.45 nicm 142: &cmd_last_pane_entry,
1.1 nicm 143: &cmd_last_window_entry,
144: &cmd_link_window_entry,
145: &cmd_list_buffers_entry,
146: &cmd_list_clients_entry,
147: &cmd_list_commands_entry,
148: &cmd_list_keys_entry,
1.23 nicm 149: &cmd_list_panes_entry,
1.1 nicm 150: &cmd_list_sessions_entry,
151: &cmd_list_windows_entry,
152: &cmd_load_buffer_entry,
1.19 nicm 153: &cmd_lock_client_entry,
1.1 nicm 154: &cmd_lock_server_entry,
1.19 nicm 155: &cmd_lock_session_entry,
1.63 nicm 156: &cmd_move_pane_entry,
1.1 nicm 157: &cmd_move_window_entry,
158: &cmd_new_session_entry,
159: &cmd_new_window_entry,
160: &cmd_next_layout_entry,
161: &cmd_next_window_entry,
162: &cmd_paste_buffer_entry,
1.24 nicm 163: &cmd_pipe_pane_entry,
1.1 nicm 164: &cmd_previous_layout_entry,
165: &cmd_previous_window_entry,
166: &cmd_refresh_client_entry,
167: &cmd_rename_session_entry,
168: &cmd_rename_window_entry,
169: &cmd_resize_pane_entry,
1.56 nicm 170: &cmd_respawn_pane_entry,
1.1 nicm 171: &cmd_respawn_window_entry,
172: &cmd_rotate_window_entry,
1.17 nicm 173: &cmd_run_shell_entry,
1.1 nicm 174: &cmd_save_buffer_entry,
175: &cmd_select_layout_entry,
176: &cmd_select_pane_entry,
177: &cmd_select_window_entry,
178: &cmd_send_keys_entry,
179: &cmd_send_prefix_entry,
180: &cmd_set_buffer_entry,
1.13 nicm 181: &cmd_set_environment_entry,
1.107 nicm 182: &cmd_set_hook_entry,
1.1 nicm 183: &cmd_set_option_entry,
184: &cmd_set_window_option_entry,
185: &cmd_show_buffer_entry,
1.13 nicm 186: &cmd_show_environment_entry,
1.107 nicm 187: &cmd_show_hooks_entry,
1.32 nicm 188: &cmd_show_messages_entry,
1.1 nicm 189: &cmd_show_options_entry,
190: &cmd_show_window_options_entry,
191: &cmd_source_file_entry,
192: &cmd_split_window_entry,
193: &cmd_start_server_entry,
194: &cmd_suspend_client_entry,
195: &cmd_swap_pane_entry,
196: &cmd_swap_window_entry,
197: &cmd_switch_client_entry,
198: &cmd_unbind_key_entry,
199: &cmd_unlink_window_entry,
1.82 nicm 200: &cmd_wait_for_entry,
1.1 nicm 201: NULL
202: };
203:
1.10 nicm 204: int
205: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
206: {
207: size_t arglen;
208: int i;
1.91 nicm 209:
210: if (argc == 0)
211: return (0);
1.10 nicm 212:
213: *buf = '\0';
214: for (i = 0; i < argc; i++) {
215: if (strlcpy(buf, argv[i], len) >= len)
216: return (-1);
217: arglen = strlen(argv[i]) + 1;
218: buf += arglen;
219: len -= arglen;
220: }
221:
222: return (0);
223: }
224:
225: int
226: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
227: {
228: int i;
229: size_t arglen;
230:
231: if (argc == 0)
232: return (0);
233: *argv = xcalloc(argc, sizeof **argv);
234:
235: buf[len - 1] = '\0';
236: for (i = 0; i < argc; i++) {
237: if (len == 0) {
238: cmd_free_argv(argc, *argv);
239: return (-1);
240: }
241:
242: arglen = strlen(buf) + 1;
243: (*argv)[i] = xstrdup(buf);
244: buf += arglen;
245: len -= arglen;
246: }
247:
248: return (0);
1.46 nicm 249: }
250:
251: char **
1.93 nicm 252: cmd_copy_argv(int argc, char **argv)
1.46 nicm 253: {
254: char **new_argv;
255: int i;
256:
257: if (argc == 0)
258: return (NULL);
1.94 nicm 259: new_argv = xcalloc(argc + 1, sizeof *new_argv);
1.46 nicm 260: for (i = 0; i < argc; i++) {
261: if (argv[i] != NULL)
262: new_argv[i] = xstrdup(argv[i]);
263: }
264: return (new_argv);
1.10 nicm 265: }
266:
267: void
268: cmd_free_argv(int argc, char **argv)
269: {
270: int i;
271:
272: if (argc == 0)
1.35 nicm 273: return;
1.68 nicm 274: for (i = 0; i < argc; i++)
275: free(argv[i]);
276: free(argv);
1.94 nicm 277: }
278:
279: char *
280: cmd_stringify_argv(int argc, char **argv)
281: {
282: char *buf;
283: int i;
284: size_t len;
285:
286: if (argc == 0)
287: return (xstrdup(""));
288:
289: len = 0;
290: buf = NULL;
291:
292: for (i = 0; i < argc; i++) {
293: len += strlen(argv[i]) + 1;
1.98 nicm 294: buf = xrealloc(buf, len);
1.94 nicm 295:
296: if (i == 0)
297: *buf = '\0';
298: else
299: strlcat(buf, " ", len);
300: strlcat(buf, argv[i], len);
301: }
302: return (buf);
1.10 nicm 303: }
304:
1.135 nicm 305: static int
306: cmd_try_alias(int *argc, char ***argv)
307: {
308: struct options_entry *o;
309: int old_argc = *argc, new_argc;
310: char **old_argv = *argv, **new_argv;
311: u_int size, idx;
312: int i;
313: size_t wanted;
314: const char *s, *cp = NULL;
315:
316: o = options_get_only(global_options, "command-alias");
317: if (o == NULL || options_array_size(o, &size) == -1 || size == 0)
318: return (-1);
319:
320: wanted = strlen(old_argv[0]);
321: for (idx = 0; idx < size; idx++) {
322: s = options_array_get(o, idx);
323: if (s == NULL)
324: continue;
325:
326: cp = strchr(s, '=');
327: if (cp == NULL || (size_t)(cp - s) != wanted)
328: continue;
329: if (strncmp(old_argv[0], s, wanted) == 0)
330: break;
331: }
332: if (idx == size)
333: return (-1);
334:
335: if (cmd_string_split(cp + 1, &new_argc, &new_argv) != 0)
336: return (-1);
337:
338: *argc = new_argc + old_argc - 1;
339: *argv = xcalloc((*argc) + 1, sizeof **argv);
340:
341: for (i = 0; i < new_argc; i++)
342: (*argv)[i] = xstrdup(new_argv[i]);
343: for (i = 1; i < old_argc; i++)
344: (*argv)[new_argc + i - 1] = xstrdup(old_argv[i]);
345:
346: log_debug("alias: %s=%s", old_argv[0], cp + 1);
347: for (i = 0; i < *argc; i++)
348: log_debug("alias: argv[%d] = %s", i, (*argv)[i]);
349:
350: cmd_free_argv(new_argc, new_argv);
351: return (0);
352: }
353:
1.1 nicm 354: struct cmd *
1.80 nicm 355: cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
1.1 nicm 356: {
1.135 nicm 357: const char *name;
1.1 nicm 358: const struct cmd_entry **entryp, *entry;
1.27 deraadt 359: struct cmd *cmd;
1.49 nicm 360: struct args *args;
1.1 nicm 361: char s[BUFSIZ];
1.135 nicm 362: int ambiguous, allocated = 0;
1.1 nicm 363:
364: *cause = NULL;
1.2 nicm 365: if (argc == 0) {
366: xasprintf(cause, "no command");
1.1 nicm 367: return (NULL);
1.2 nicm 368: }
1.135 nicm 369: name = argv[0];
1.1 nicm 370:
1.135 nicm 371: retry:
372: ambiguous = 0;
1.1 nicm 373: entry = NULL;
374: for (entryp = cmd_table; *entryp != NULL; entryp++) {
375: if ((*entryp)->alias != NULL &&
376: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 377: ambiguous = 0;
1.1 nicm 378: entry = *entryp;
379: break;
380: }
381:
382: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
383: continue;
384: if (entry != NULL)
1.3 nicm 385: ambiguous = 1;
1.1 nicm 386: entry = *entryp;
387:
388: /* Bail now if an exact match. */
389: if (strcmp(entry->name, argv[0]) == 0)
390: break;
391: }
1.135 nicm 392: if ((ambiguous || entry == NULL) &&
393: server_proc != NULL &&
394: !allocated &&
395: cmd_try_alias(&argc, &argv) == 0) {
396: allocated = 1;
397: goto retry;
398: }
1.3 nicm 399: if (ambiguous)
400: goto ambiguous;
1.1 nicm 401: if (entry == NULL) {
1.135 nicm 402: xasprintf(cause, "unknown command: %s", name);
1.1 nicm 403: return (NULL);
404: }
405:
1.117 nicm 406: args = args_parse(entry->args.template, argc, argv);
1.49 nicm 407: if (args == NULL)
408: goto usage;
1.117 nicm 409: if (entry->args.lower != -1 && args->argc < entry->args.lower)
1.49 nicm 410: goto usage;
1.117 nicm 411: if (entry->args.upper != -1 && args->argc > entry->args.upper)
1.49 nicm 412: goto usage;
1.1 nicm 413:
1.80 nicm 414: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 415: cmd->entry = entry;
1.49 nicm 416: cmd->args = args;
1.80 nicm 417:
418: if (file != NULL)
419: cmd->file = xstrdup(file);
420: cmd->line = line;
421:
1.135 nicm 422: if (allocated)
423: cmd_free_argv(argc, argv);
1.1 nicm 424: return (cmd);
425:
426: ambiguous:
427: *s = '\0';
428: for (entryp = cmd_table; *entryp != NULL; entryp++) {
429: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
430: continue;
431: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
432: break;
433: if (strlcat(s, ", ", sizeof s) >= sizeof s)
434: break;
435: }
436: s[strlen(s) - 2] = '\0';
1.135 nicm 437: xasprintf(cause, "ambiguous command: %s, could be: %s", name, s);
1.1 nicm 438: return (NULL);
439:
440: usage:
1.49 nicm 441: if (args != NULL)
442: args_free(args);
1.1 nicm 443: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
444: return (NULL);
445: }
446:
1.106 nicm 447: char *
448: cmd_print(struct cmd *cmd)
1.1 nicm 449: {
1.106 nicm 450: char *out, *s;
451:
452: s = args_print(cmd->args);
453: if (*s != '\0')
454: xasprintf(&out, "%s %s", cmd->entry->name, s);
455: else
456: out = xstrdup(cmd->entry->name);
457: free(s);
1.49 nicm 458:
1.106 nicm 459: return (out);
1.1 nicm 460: }
461:
1.99 nicm 462: /* Adjust current mouse position for a pane. */
463: int
464: cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,
465: u_int *yp, int last)
466: {
467: u_int x, y;
468:
469: if (last) {
470: x = m->lx;
471: y = m->ly;
472: } else {
473: x = m->x;
474: y = m->y;
475: }
476:
477: if (m->statusat == 0 && y > 0)
478: y--;
479: else if (m->statusat > 0 && y >= (u_int)m->statusat)
480: y = m->statusat - 1;
481:
482: if (x < wp->xoff || x >= wp->xoff + wp->sx)
483: return (-1);
484: if (y < wp->yoff || y >= wp->yoff + wp->sy)
485: return (-1);
486:
1.123 nicm 487: if (xp != NULL)
488: *xp = x - wp->xoff;
489: if (yp != NULL)
490: *yp = y - wp->yoff;
1.99 nicm 491: return (0);
492: }
493:
494: /* Get current mouse window if any. */
495: struct winlink *
496: cmd_mouse_window(struct mouse_event *m, struct session **sp)
497: {
498: struct session *s;
499: struct window *w;
500:
501: if (!m->valid || m->s == -1 || m->w == -1)
502: return (NULL);
503: if ((s = session_find_by_id(m->s)) == NULL)
504: return (NULL);
505: if ((w = window_find_by_id(m->w)) == NULL)
506: return (NULL);
507:
508: if (sp != NULL)
509: *sp = s;
510: return (winlink_find_by_window(&s->windows, w));
511: }
512:
513: /* Get current mouse pane if any. */
514: struct window_pane *
1.104 nicm 515: cmd_mouse_pane(struct mouse_event *m, struct session **sp,
516: struct winlink **wlp)
1.99 nicm 517: {
518: struct winlink *wl;
519: struct window_pane *wp;
520:
521: if ((wl = cmd_mouse_window(m, sp)) == NULL)
522: return (NULL);
523: if ((wp = window_pane_find_by_id(m->wp)) == NULL)
524: return (NULL);
525: if (!window_has_pane(wl->window, wp))
526: return (NULL);
527:
528: if (wlp != NULL)
529: *wlp = wl;
1.43 nicm 530: return (wp);
1.15 nicm 531: }
532:
533: /* Replace the first %% or %idx in template by s. */
534: char *
1.75 nicm 535: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 536: {
1.75 nicm 537: char ch, *buf;
1.131 nicm 538: const char *ptr, *cp, quote[] = "\"\\$";
1.127 nicm 539: int replaced, quoted;
1.84 nicm 540: size_t len;
1.15 nicm 541:
1.76 nicm 542: if (strchr(template, '%') == NULL)
1.15 nicm 543: return (xstrdup(template));
544:
545: buf = xmalloc(1);
546: *buf = '\0';
547: len = 0;
548: replaced = 0;
549:
550: ptr = template;
551: while (*ptr != '\0') {
552: switch (ch = *ptr++) {
553: case '%':
554: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
555: if (*ptr != '%' || replaced)
556: break;
557: replaced = 1;
558: }
559: ptr++;
560:
1.127 nicm 561: quoted = (*ptr == '%');
562: if (quoted)
563: ptr++;
564:
1.132 nicm 565: buf = xrealloc(buf, len + (strlen(s) * 3) + 1);
1.127 nicm 566: for (cp = s; *cp != '\0'; cp++) {
1.131 nicm 567: if (quoted && strchr(quote, *cp) != NULL)
1.127 nicm 568: buf[len++] = '\\';
1.132 nicm 569: if (quoted && *cp == ';') {
570: buf[len++] = '\\';
571: buf[len++] = '\\';
572: }
1.127 nicm 573: buf[len++] = *cp;
574: }
575: buf[len] = '\0';
1.15 nicm 576: continue;
577: }
1.98 nicm 578: buf = xrealloc(buf, len + 2);
1.15 nicm 579: buf[len++] = ch;
580: buf[len] = '\0';
581: }
582:
583: return (buf);
1.1 nicm 584: }
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