Annotation of src/usr.bin/tmux/cmd.c, Revision 1.104
1.104 ! nicm 1: /* $OpenBSD: cmd.c,v 1.103 2015/04/25 18:33:59 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20: #include <sys/time.h>
21:
1.5 nicm 22: #include <fnmatch.h>
23: #include <paths.h>
1.61 nicm 24: #include <pwd.h>
1.1 nicm 25: #include <stdlib.h>
26: #include <string.h>
27: #include <unistd.h>
28:
29: #include "tmux.h"
30:
31: const struct cmd_entry *cmd_table[] = {
32: &cmd_attach_session_entry,
33: &cmd_bind_key_entry,
34: &cmd_break_pane_entry,
1.34 nicm 35: &cmd_capture_pane_entry,
1.42 nicm 36: &cmd_choose_buffer_entry,
1.15 nicm 37: &cmd_choose_client_entry,
1.1 nicm 38: &cmd_choose_session_entry,
1.67 nicm 39: &cmd_choose_tree_entry,
1.1 nicm 40: &cmd_choose_window_entry,
41: &cmd_clear_history_entry,
42: &cmd_clock_mode_entry,
43: &cmd_command_prompt_entry,
44: &cmd_confirm_before_entry,
45: &cmd_copy_mode_entry,
46: &cmd_delete_buffer_entry,
47: &cmd_detach_client_entry,
1.7 nicm 48: &cmd_display_message_entry,
1.16 nicm 49: &cmd_display_panes_entry,
1.1 nicm 50: &cmd_find_window_entry,
51: &cmd_has_session_entry,
1.4 nicm 52: &cmd_if_shell_entry,
1.37 nicm 53: &cmd_join_pane_entry,
1.1 nicm 54: &cmd_kill_pane_entry,
55: &cmd_kill_server_entry,
56: &cmd_kill_session_entry,
57: &cmd_kill_window_entry,
1.45 nicm 58: &cmd_last_pane_entry,
1.1 nicm 59: &cmd_last_window_entry,
60: &cmd_link_window_entry,
61: &cmd_list_buffers_entry,
62: &cmd_list_clients_entry,
63: &cmd_list_commands_entry,
64: &cmd_list_keys_entry,
1.23 nicm 65: &cmd_list_panes_entry,
1.1 nicm 66: &cmd_list_sessions_entry,
67: &cmd_list_windows_entry,
68: &cmd_load_buffer_entry,
1.19 nicm 69: &cmd_lock_client_entry,
1.1 nicm 70: &cmd_lock_server_entry,
1.19 nicm 71: &cmd_lock_session_entry,
1.63 nicm 72: &cmd_move_pane_entry,
1.1 nicm 73: &cmd_move_window_entry,
74: &cmd_new_session_entry,
75: &cmd_new_window_entry,
76: &cmd_next_layout_entry,
77: &cmd_next_window_entry,
78: &cmd_paste_buffer_entry,
1.24 nicm 79: &cmd_pipe_pane_entry,
1.1 nicm 80: &cmd_previous_layout_entry,
81: &cmd_previous_window_entry,
82: &cmd_refresh_client_entry,
83: &cmd_rename_session_entry,
84: &cmd_rename_window_entry,
85: &cmd_resize_pane_entry,
1.56 nicm 86: &cmd_respawn_pane_entry,
1.1 nicm 87: &cmd_respawn_window_entry,
88: &cmd_rotate_window_entry,
1.17 nicm 89: &cmd_run_shell_entry,
1.1 nicm 90: &cmd_save_buffer_entry,
91: &cmd_select_layout_entry,
92: &cmd_select_pane_entry,
93: &cmd_select_window_entry,
94: &cmd_send_keys_entry,
95: &cmd_send_prefix_entry,
96: &cmd_server_info_entry,
97: &cmd_set_buffer_entry,
1.13 nicm 98: &cmd_set_environment_entry,
1.1 nicm 99: &cmd_set_option_entry,
100: &cmd_set_window_option_entry,
101: &cmd_show_buffer_entry,
1.13 nicm 102: &cmd_show_environment_entry,
1.32 nicm 103: &cmd_show_messages_entry,
1.1 nicm 104: &cmd_show_options_entry,
105: &cmd_show_window_options_entry,
106: &cmd_source_file_entry,
107: &cmd_split_window_entry,
108: &cmd_start_server_entry,
109: &cmd_suspend_client_entry,
110: &cmd_swap_pane_entry,
111: &cmd_swap_window_entry,
112: &cmd_switch_client_entry,
113: &cmd_unbind_key_entry,
114: &cmd_unlink_window_entry,
1.82 nicm 115: &cmd_wait_for_entry,
1.1 nicm 116: NULL
117: };
118:
1.10 nicm 119: int
120: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
121: {
122: size_t arglen;
123: int i;
1.91 nicm 124:
125: if (argc == 0)
126: return (0);
1.10 nicm 127:
128: *buf = '\0';
129: for (i = 0; i < argc; i++) {
130: if (strlcpy(buf, argv[i], len) >= len)
131: return (-1);
132: arglen = strlen(argv[i]) + 1;
133: buf += arglen;
134: len -= arglen;
135: }
136:
137: return (0);
138: }
139:
140: int
141: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
142: {
143: int i;
144: size_t arglen;
145:
146: if (argc == 0)
147: return (0);
148: *argv = xcalloc(argc, sizeof **argv);
149:
150: buf[len - 1] = '\0';
151: for (i = 0; i < argc; i++) {
152: if (len == 0) {
153: cmd_free_argv(argc, *argv);
154: return (-1);
155: }
156:
157: arglen = strlen(buf) + 1;
158: (*argv)[i] = xstrdup(buf);
159: buf += arglen;
160: len -= arglen;
161: }
162:
163: return (0);
1.46 nicm 164: }
165:
166: char **
1.93 nicm 167: cmd_copy_argv(int argc, char **argv)
1.46 nicm 168: {
169: char **new_argv;
170: int i;
171:
172: if (argc == 0)
173: return (NULL);
1.94 nicm 174: new_argv = xcalloc(argc + 1, sizeof *new_argv);
1.46 nicm 175: for (i = 0; i < argc; i++) {
176: if (argv[i] != NULL)
177: new_argv[i] = xstrdup(argv[i]);
178: }
179: return (new_argv);
1.10 nicm 180: }
181:
182: void
183: cmd_free_argv(int argc, char **argv)
184: {
185: int i;
186:
187: if (argc == 0)
1.35 nicm 188: return;
1.68 nicm 189: for (i = 0; i < argc; i++)
190: free(argv[i]);
191: free(argv);
1.94 nicm 192: }
193:
194: char *
195: cmd_stringify_argv(int argc, char **argv)
196: {
197: char *buf;
198: int i;
199: size_t len;
200:
201: if (argc == 0)
202: return (xstrdup(""));
203:
204: len = 0;
205: buf = NULL;
206:
207: for (i = 0; i < argc; i++) {
208: len += strlen(argv[i]) + 1;
1.98 nicm 209: buf = xrealloc(buf, len);
1.94 nicm 210:
211: if (i == 0)
212: *buf = '\0';
213: else
214: strlcat(buf, " ", len);
215: strlcat(buf, argv[i], len);
216: }
217: return (buf);
1.10 nicm 218: }
219:
1.1 nicm 220: struct cmd *
1.80 nicm 221: cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
1.1 nicm 222: {
223: const struct cmd_entry **entryp, *entry;
1.27 deraadt 224: struct cmd *cmd;
1.49 nicm 225: struct args *args;
1.1 nicm 226: char s[BUFSIZ];
1.49 nicm 227: int ambiguous = 0;
1.1 nicm 228:
229: *cause = NULL;
1.2 nicm 230: if (argc == 0) {
231: xasprintf(cause, "no command");
1.1 nicm 232: return (NULL);
1.2 nicm 233: }
1.1 nicm 234:
235: entry = NULL;
236: for (entryp = cmd_table; *entryp != NULL; entryp++) {
237: if ((*entryp)->alias != NULL &&
238: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 239: ambiguous = 0;
1.1 nicm 240: entry = *entryp;
241: break;
242: }
243:
244: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
245: continue;
246: if (entry != NULL)
1.3 nicm 247: ambiguous = 1;
1.1 nicm 248: entry = *entryp;
249:
250: /* Bail now if an exact match. */
251: if (strcmp(entry->name, argv[0]) == 0)
252: break;
253: }
1.3 nicm 254: if (ambiguous)
255: goto ambiguous;
1.1 nicm 256: if (entry == NULL) {
257: xasprintf(cause, "unknown command: %s", argv[0]);
258: return (NULL);
259: }
260:
1.49 nicm 261: args = args_parse(entry->args_template, argc, argv);
262: if (args == NULL)
263: goto usage;
264: if (entry->args_lower != -1 && args->argc < entry->args_lower)
265: goto usage;
266: if (entry->args_upper != -1 && args->argc > entry->args_upper)
267: goto usage;
1.1 nicm 268:
1.80 nicm 269: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 270: cmd->entry = entry;
1.49 nicm 271: cmd->args = args;
1.80 nicm 272:
273: if (file != NULL)
274: cmd->file = xstrdup(file);
275: cmd->line = line;
276:
1.1 nicm 277: return (cmd);
278:
279: ambiguous:
280: *s = '\0';
281: for (entryp = cmd_table; *entryp != NULL; entryp++) {
282: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
283: continue;
284: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
285: break;
286: if (strlcat(s, ", ", sizeof s) >= sizeof s)
287: break;
288: }
289: s[strlen(s) - 2] = '\0';
290: xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
291: return (NULL);
292:
293: usage:
1.49 nicm 294: if (args != NULL)
295: args_free(args);
1.1 nicm 296: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
297: return (NULL);
298: }
299:
300: size_t
301: cmd_print(struct cmd *cmd, char *buf, size_t len)
302: {
1.49 nicm 303: size_t off, used;
304:
305: off = xsnprintf(buf, len, "%s ", cmd->entry->name);
1.85 nicm 306: if (off + 1 < len) {
307: used = args_print(cmd->args, buf + off, len - off - 1);
1.49 nicm 308: if (used == 0)
1.64 nicm 309: off--;
310: else
1.49 nicm 311: off += used;
1.64 nicm 312: buf[off] = '\0';
1.49 nicm 313: }
314: return (off);
1.1 nicm 315: }
316:
1.99 nicm 317: /* Adjust current mouse position for a pane. */
318: int
319: cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,
320: u_int *yp, int last)
321: {
322: u_int x, y;
323:
324: if (last) {
325: x = m->lx;
326: y = m->ly;
327: } else {
328: x = m->x;
329: y = m->y;
330: }
331:
332: if (m->statusat == 0 && y > 0)
333: y--;
334: else if (m->statusat > 0 && y >= (u_int)m->statusat)
335: y = m->statusat - 1;
336:
337: if (x < wp->xoff || x >= wp->xoff + wp->sx)
338: return (-1);
339: if (y < wp->yoff || y >= wp->yoff + wp->sy)
340: return (-1);
341:
342: *xp = x - wp->xoff;
343: *yp = y - wp->yoff;
344: return (0);
345: }
346:
347: /* Get current mouse window if any. */
348: struct winlink *
349: cmd_mouse_window(struct mouse_event *m, struct session **sp)
350: {
351: struct session *s;
352: struct window *w;
353:
354: if (!m->valid || m->s == -1 || m->w == -1)
355: return (NULL);
356: if ((s = session_find_by_id(m->s)) == NULL)
357: return (NULL);
358: if ((w = window_find_by_id(m->w)) == NULL)
359: return (NULL);
360:
361: if (sp != NULL)
362: *sp = s;
363: return (winlink_find_by_window(&s->windows, w));
364: }
365:
366: /* Get current mouse pane if any. */
367: struct window_pane *
1.104 ! nicm 368: cmd_mouse_pane(struct mouse_event *m, struct session **sp,
! 369: struct winlink **wlp)
1.99 nicm 370: {
371: struct winlink *wl;
372: struct window_pane *wp;
373:
374: if ((wl = cmd_mouse_window(m, sp)) == NULL)
375: return (NULL);
376: if ((wp = window_pane_find_by_id(m->wp)) == NULL)
377: return (NULL);
378: if (!window_has_pane(wl->window, wp))
379: return (NULL);
380:
381: if (wlp != NULL)
382: *wlp = wl;
1.43 nicm 383: return (wp);
1.15 nicm 384: }
385:
386: /* Replace the first %% or %idx in template by s. */
387: char *
1.75 nicm 388: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 389: {
1.75 nicm 390: char ch, *buf;
391: const char *ptr;
1.84 nicm 392: int replaced;
393: size_t len;
1.15 nicm 394:
1.76 nicm 395: if (strchr(template, '%') == NULL)
1.15 nicm 396: return (xstrdup(template));
397:
398: buf = xmalloc(1);
399: *buf = '\0';
400: len = 0;
401: replaced = 0;
402:
403: ptr = template;
404: while (*ptr != '\0') {
405: switch (ch = *ptr++) {
406: case '%':
407: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
408: if (*ptr != '%' || replaced)
409: break;
410: replaced = 1;
411: }
412: ptr++;
413:
414: len += strlen(s);
1.98 nicm 415: buf = xrealloc(buf, len + 1);
1.15 nicm 416: strlcat(buf, s, len + 1);
417: continue;
418: }
1.98 nicm 419: buf = xrealloc(buf, len + 2);
1.15 nicm 420: buf[len++] = ch;
421: buf[len] = '\0';
422: }
423:
424: return (buf);
1.1 nicm 425: }
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