Annotation of src/usr.bin/tmux/server-client.c, Revision 1.139
1.139 ! nicm 1: /* $OpenBSD: server-client.c,v 1.138 2015/05/08 15:56:49 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2009 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>
1.92 nicm 20: #include <sys/ioctl.h>
1.1 nicm 21:
1.114 benno 22: #include <errno.h>
1.12 nicm 23: #include <event.h>
1.1 nicm 24: #include <fcntl.h>
1.98 nicm 25: #include <paths.h>
26: #include <stdlib.h>
1.1 nicm 27: #include <string.h>
1.4 nicm 28: #include <time.h>
1.1 nicm 29: #include <unistd.h>
30:
31: #include "tmux.h"
32:
1.132 nicm 33: void server_client_key_table(struct client *, const char *);
1.91 nicm 34: void server_client_check_focus(struct window_pane *);
1.92 nicm 35: void server_client_check_resize(struct window_pane *);
1.131 nicm 36: int server_client_check_mouse(struct client *);
1.17 nicm 37: void server_client_repeat_timer(int, short, void *);
1.36 nicm 38: void server_client_check_exit(struct client *);
1.1 nicm 39: void server_client_check_redraw(struct client *);
40: void server_client_set_title(struct client *);
1.18 nicm 41: void server_client_reset_state(struct client *);
1.82 nicm 42: int server_client_assume_paste(struct session *);
1.1 nicm 43:
44: int server_client_msg_dispatch(struct client *);
1.108 nicm 45: void server_client_msg_command(struct client *, struct imsg *);
1.109 nicm 46: void server_client_msg_identify(struct client *, struct imsg *);
1.1 nicm 47: void server_client_msg_shell(struct client *);
48:
1.132 nicm 49: /* Set client key table. */
50: void
51: server_client_key_table(struct client *c, const char *name)
52: {
53: key_bindings_unref_table(c->keytable);
54: c->keytable = key_bindings_get_table(name, 1);
55: c->keytable->references++;
56: }
57:
1.1 nicm 58: /* Create a new client. */
59: void
60: server_client_create(int fd)
61: {
62: struct client *c;
63:
1.49 nicm 64: setblocking(fd, 0);
1.1 nicm 65:
66: c = xcalloc(1, sizeof *c);
67: c->references = 0;
68: imsg_init(&c->ibuf, fd);
1.14 nicm 69: server_update_event(c);
1.25 nicm 70:
1.10 nicm 71: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 72: fatal("gettimeofday failed");
1.11 nicm 73: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.111 nicm 74:
75: environ_init(&c->environ);
1.1 nicm 76:
1.94 nicm 77: c->cmdq = cmdq_new(c);
78: c->cmdq->client_exit = 1;
79:
1.116 nicm 80: c->stdin_data = evbuffer_new();
81: c->stdout_data = evbuffer_new();
82: c->stderr_data = evbuffer_new();
1.33 nicm 83:
1.1 nicm 84: c->tty.fd = -1;
85: c->title = NULL;
86:
87: c->session = NULL;
1.45 nicm 88: c->last_session = NULL;
1.1 nicm 89: c->tty.sx = 80;
90: c->tty.sy = 24;
91:
92: screen_init(&c->status, c->tty.sx, 1, 0);
1.51 nicm 93: RB_INIT(&c->status_new);
94: RB_INIT(&c->status_old);
1.1 nicm 95:
96: c->message_string = NULL;
1.136 nicm 97: TAILQ_INIT(&c->message_log);
1.1 nicm 98:
99: c->prompt_string = NULL;
100: c->prompt_buffer = NULL;
101: c->prompt_index = 0;
102:
1.93 nicm 103: c->flags |= CLIENT_FOCUSED;
104:
1.132 nicm 105: c->keytable = key_bindings_get_table("root", 1);
106: c->keytable->references++;
107:
1.17 nicm 108: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
109:
1.135 nicm 110: TAILQ_INSERT_TAIL(&clients, c, entry);
1.1 nicm 111: log_debug("new client %d", fd);
1.72 nicm 112: }
113:
114: /* Open client terminal if needed. */
115: int
1.119 nicm 116: server_client_open(struct client *c, char **cause)
1.72 nicm 117: {
1.75 nicm 118: if (c->flags & CLIENT_CONTROL)
119: return (0);
1.120 nicm 120:
121: if (strcmp(c->ttyname, "/dev/tty") == 0) {
122: *cause = xstrdup("can't use /dev/tty");
123: return (-1);
124: }
1.75 nicm 125:
1.72 nicm 126: if (!(c->flags & CLIENT_TERMINAL)) {
1.116 nicm 127: *cause = xstrdup("not a terminal");
1.72 nicm 128: return (-1);
129: }
130:
1.119 nicm 131: if (tty_open(&c->tty, cause) != 0)
1.72 nicm 132: return (-1);
133:
134: return (0);
1.1 nicm 135: }
136:
137: /* Lost a client. */
138: void
139: server_client_lost(struct client *c)
140: {
1.136 nicm 141: struct message_entry *msg, *msg1;
1.1 nicm 142:
1.135 nicm 143: TAILQ_REMOVE(&clients, c, entry);
1.1 nicm 144: log_debug("lost client %d", c->ibuf.fd);
145:
146: /*
147: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
148: * and tty_free might close an unrelated fd.
149: */
150: if (c->flags & CLIENT_TERMINAL)
151: tty_free(&c->tty);
1.109 nicm 152: free(c->ttyname);
153: free(c->term);
1.1 nicm 154:
1.113 nicm 155: evbuffer_free(c->stdin_data);
156: evbuffer_free(c->stdout_data);
1.97 nicm 157: if (c->stderr_data != c->stdout_data)
1.126 nicm 158: evbuffer_free(c->stderr_data);
1.33 nicm 159:
1.1 nicm 160: screen_free(&c->status);
161:
1.77 nicm 162: free(c->title);
1.109 nicm 163: close(c->cwd);
1.1 nicm 164:
1.17 nicm 165: evtimer_del(&c->repeat_timer);
166:
1.132 nicm 167: key_bindings_unref_table(c->keytable);
168:
1.69 nicm 169: if (event_initialized(&c->identify_timer))
170: evtimer_del(&c->identify_timer);
1.15 nicm 171:
1.77 nicm 172: free(c->message_string);
1.116 nicm 173: if (event_initialized(&c->message_timer))
1.69 nicm 174: evtimer_del(&c->message_timer);
1.136 nicm 175: TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
1.77 nicm 176: free(msg->msg);
1.136 nicm 177: TAILQ_REMOVE(&c->message_log, msg, entry);
178: free(msg);
1.21 nicm 179: }
1.1 nicm 180:
1.77 nicm 181: free(c->prompt_string);
182: free(c->prompt_buffer);
1.61 nicm 183:
1.94 nicm 184: c->cmdq->dead = 1;
185: cmdq_free(c->cmdq);
186: c->cmdq = NULL;
187:
1.61 nicm 188: environ_free(&c->environ);
1.1 nicm 189:
190: close(c->ibuf.fd);
191: imsg_clear(&c->ibuf);
1.69 nicm 192: if (event_initialized(&c->event))
193: event_del(&c->event);
1.13 nicm 194:
1.135 nicm 195: TAILQ_INSERT_TAIL(&dead_clients, c, entry);
1.1 nicm 196: c->flags |= CLIENT_DEAD;
1.71 nicm 197:
198: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 199:
200: recalculate_sizes();
1.41 nicm 201: server_check_unattached();
1.19 nicm 202: server_update_socket();
1.9 nicm 203: }
204:
1.1 nicm 205: /* Process a single client event. */
206: void
1.12 nicm 207: server_client_callback(int fd, short events, void *data)
1.1 nicm 208: {
209: struct client *c = data;
1.7 nicm 210:
211: if (c->flags & CLIENT_DEAD)
212: return;
1.1 nicm 213:
214: if (fd == c->ibuf.fd) {
1.122 krw 215: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) <= 0 &&
1.114 benno 216: errno != EAGAIN)
1.1 nicm 217: goto client_lost;
218:
219: if (c->flags & CLIENT_BAD) {
220: if (c->ibuf.w.queued == 0)
221: goto client_lost;
222: return;
223: }
224:
1.12 nicm 225: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 226: goto client_lost;
227: }
1.14 nicm 228:
1.73 nicm 229: server_push_stdout(c);
230: server_push_stderr(c);
231:
1.25 nicm 232: server_update_event(c);
1.1 nicm 233: return;
234:
235: client_lost:
236: server_client_lost(c);
237: }
238:
1.16 nicm 239: /* Handle client status timer. */
240: void
241: server_client_status_timer(void)
242: {
243: struct client *c;
244: struct session *s;
245: struct timeval tv;
1.20 nicm 246: int interval;
247: time_t difference;
1.16 nicm 248:
249: if (gettimeofday(&tv, NULL) != 0)
250: fatal("gettimeofday failed");
251:
1.135 nicm 252: TAILQ_FOREACH(c, &clients, entry) {
253: if (c->session == NULL)
1.16 nicm 254: continue;
255: if (c->message_string != NULL || c->prompt_string != NULL) {
256: /*
257: * Don't need timed redraw for messages/prompts so bail
258: * now. The status timer isn't reset when they are
259: * redrawn anyway.
260: */
261: continue;
262: }
263: s = c->session;
264:
265: if (!options_get_number(&s->options, "status"))
266: continue;
267: interval = options_get_number(&s->options, "status-interval");
268:
1.20 nicm 269: difference = tv.tv_sec - c->status_timer.tv_sec;
1.139 ! nicm 270: if (interval != 0 && difference >= interval)
1.16 nicm 271: c->flags |= CLIENT_STATUS;
272: }
273: }
274:
1.66 nicm 275: /* Check for mouse keys. */
1.131 nicm 276: int
277: server_client_check_mouse(struct client *c)
1.66 nicm 278: {
1.131 nicm 279: struct session *s = c->session;
280: struct mouse_event *m = &c->tty.mouse;
281: struct window *w;
282: struct window_pane *wp;
283: enum { NOTYPE, DOWN, UP, DRAG, WHEEL } type = NOTYPE;
284: enum { NOWHERE, PANE, STATUS, BORDER } where = NOWHERE;
285: u_int x, y, b;
286: int key;
287:
288: log_debug("mouse %02x at %u,%u (last %u,%u) (%d)", m->b, m->x, m->y,
289: m->lx, m->ly, c->tty.mouse_drag_flag);
290:
291: /* What type of event is this? */
292: if (MOUSE_DRAG(m->b)) {
293: type = DRAG;
294: if (c->tty.mouse_drag_flag) {
295: x = m->x, y = m->y, b = m->b;
296: log_debug("drag update at %u,%u", x, y);
297: } else {
298: x = m->lx, y = m->ly, b = m->lb;
299: log_debug("drag start at %u,%u", x, y);
300: }
301: } else if (MOUSE_WHEEL(m->b)) {
302: type = WHEEL;
303: x = m->x, y = m->y, b = m->b;
304: log_debug("wheel at %u,%u", x, y);
305: } else if (MOUSE_BUTTONS(m->b) == 3) {
306: type = UP;
307: x = m->x, y = m->y, b = m->lb;
308: log_debug("up at %u,%u", x, y);
309: } else {
310: type = DOWN;
311: x = m->x, y = m->y, b = m->b;
312: log_debug("down at %u,%u", x, y);
313: }
314: if (type == NOTYPE)
315: return (KEYC_NONE);
316:
317: /* Always save the session. */
318: m->s = s->id;
319:
320: /* Is this on the status line? */
321: m->statusat = status_at_line(c);
322: if (m->statusat != -1 && y == (u_int)m->statusat) {
323: w = status_get_window_at(c, x);
324: if (w == NULL)
325: return (KEYC_NONE);
326: m->w = w->id;
327: where = STATUS;
328: } else
329: m->w = -1;
330:
331: /* Not on status line. Adjust position and check for border or pane. */
332: if (where == NOWHERE) {
333: if (m->statusat == 0 && y > 0)
334: y--;
335: else if (m->statusat > 0 && y >= (u_int)m->statusat)
336: y = m->statusat - 1;
337:
338: TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
339: if ((wp->xoff + wp->sx == x &&
340: wp->yoff <= 1 + y &&
341: wp->yoff + wp->sy >= y) ||
342: (wp->yoff + wp->sy == y &&
343: wp->xoff <= 1 + x &&
344: wp->xoff + wp->sx >= x))
345: break;
346: }
347: if (wp != NULL)
348: where = BORDER;
349: else {
350: wp = window_get_active_at(s->curw->window, x, y);
351: if (wp != NULL)
352: where = PANE;
353: }
354: if (where == NOWHERE)
355: return (KEYC_NONE);
356: m->wp = wp->id;
357: m->w = wp->window->id;
358: } else
359: m->wp = -1;
360:
361: /* Stop dragging if needed. */
362: if (type != DRAG && c->tty.mouse_drag_flag) {
363: if (c->tty.mouse_drag_release != NULL)
364: c->tty.mouse_drag_release(c, m);
365:
366: c->tty.mouse_drag_update = NULL;
367: c->tty.mouse_drag_release = NULL;
368:
369: c->tty.mouse_drag_flag = 0;
1.133 nicm 370: return (KEYC_MOUSE); /* not a key, but still may want to pass */
1.131 nicm 371: }
372:
373: /* Convert to a key binding. */
374: key = KEYC_NONE;
375: switch (type) {
376: case NOTYPE:
377: break;
378: case DRAG:
379: if (c->tty.mouse_drag_update != NULL)
380: c->tty.mouse_drag_update(c, m);
381: else {
382: switch (MOUSE_BUTTONS(b)) {
383: case 0:
384: if (where == PANE)
385: key = KEYC_MOUSEDRAG1_PANE;
386: if (where == STATUS)
387: key = KEYC_MOUSEDRAG1_STATUS;
388: if (where == BORDER)
389: key = KEYC_MOUSEDRAG1_BORDER;
390: break;
391: case 1:
392: if (where == PANE)
393: key = KEYC_MOUSEDRAG2_PANE;
394: if (where == STATUS)
395: key = KEYC_MOUSEDRAG2_STATUS;
396: if (where == BORDER)
397: key = KEYC_MOUSEDRAG2_BORDER;
398: break;
399: case 2:
400: if (where == PANE)
401: key = KEYC_MOUSEDRAG3_PANE;
402: if (where == STATUS)
403: key = KEYC_MOUSEDRAG3_STATUS;
404: if (where == BORDER)
405: key = KEYC_MOUSEDRAG3_BORDER;
406: break;
407: }
408: }
1.66 nicm 409:
1.131 nicm 410: c->tty.mouse_drag_flag = 1;
411: break;
412: case WHEEL:
413: if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) {
414: if (where == PANE)
415: key = KEYC_WHEELUP_PANE;
416: if (where == STATUS)
417: key = KEYC_WHEELUP_STATUS;
418: if (where == BORDER)
419: key = KEYC_WHEELUP_BORDER;
420: } else {
421: if (where == PANE)
422: key = KEYC_WHEELDOWN_PANE;
423: if (where == STATUS)
424: key = KEYC_WHEELDOWN_STATUS;
425: if (where == BORDER)
426: key = KEYC_WHEELDOWN_BORDER;
427: }
428: break;
429: case UP:
430: switch (MOUSE_BUTTONS(b)) {
431: case 0:
432: if (where == PANE)
433: key = KEYC_MOUSEUP1_PANE;
434: if (where == STATUS)
435: key = KEYC_MOUSEUP1_STATUS;
436: if (where == BORDER)
437: key = KEYC_MOUSEUP1_BORDER;
438: break;
439: case 1:
440: if (where == PANE)
441: key = KEYC_MOUSEUP2_PANE;
442: if (where == STATUS)
443: key = KEYC_MOUSEUP2_STATUS;
444: if (where == BORDER)
445: key = KEYC_MOUSEUP2_BORDER;
446: break;
447: case 2:
448: if (where == PANE)
449: key = KEYC_MOUSEUP3_PANE;
450: if (where == STATUS)
451: key = KEYC_MOUSEUP3_STATUS;
452: if (where == BORDER)
453: key = KEYC_MOUSEUP3_BORDER;
454: break;
455: }
456: break;
457: case DOWN:
458: switch (MOUSE_BUTTONS(b)) {
459: case 0:
460: if (where == PANE)
461: key = KEYC_MOUSEDOWN1_PANE;
462: if (where == STATUS)
463: key = KEYC_MOUSEDOWN1_STATUS;
464: if (where == BORDER)
465: key = KEYC_MOUSEDOWN1_BORDER;
466: break;
467: case 1:
468: if (where == PANE)
469: key = KEYC_MOUSEDOWN2_PANE;
470: if (where == STATUS)
471: key = KEYC_MOUSEDOWN2_STATUS;
472: if (where == BORDER)
473: key = KEYC_MOUSEDOWN2_BORDER;
474: break;
475: case 2:
476: if (where == PANE)
477: key = KEYC_MOUSEDOWN3_PANE;
478: if (where == STATUS)
479: key = KEYC_MOUSEDOWN3_STATUS;
480: if (where == BORDER)
481: key = KEYC_MOUSEDOWN3_BORDER;
482: break;
1.66 nicm 483: }
1.131 nicm 484: break;
1.66 nicm 485: }
1.131 nicm 486: if (key == KEYC_NONE)
487: return (KEYC_NONE);
1.66 nicm 488:
1.131 nicm 489: /* Apply modifiers if any. */
490: if (b & MOUSE_MASK_META)
491: key |= KEYC_ESCAPE;
492: if (b & MOUSE_MASK_CTRL)
493: key |= KEYC_CTRL;
494: if (b & MOUSE_MASK_SHIFT)
495: key |= KEYC_SHIFT;
1.66 nicm 496:
1.131 nicm 497: return (key);
1.66 nicm 498: }
499:
1.82 nicm 500: /* Is this fast enough to probably be a paste? */
501: int
502: server_client_assume_paste(struct session *s)
503: {
504: struct timeval tv;
1.84 nicm 505: int t;
1.82 nicm 506:
507: if ((t = options_get_number(&s->options, "assume-paste-time")) == 0)
1.83 nicm 508: return (0);
1.82 nicm 509:
510: timersub(&s->activity_time, &s->last_activity_time, &tv);
511: if (tv.tv_sec == 0 && tv.tv_usec < t * 1000)
1.83 nicm 512: return (1);
513: return (0);
1.82 nicm 514: }
515:
1.18 nicm 516: /* Handle data key input from client. */
517: void
1.74 nicm 518: server_client_handle_key(struct client *c, int key)
1.18 nicm 519: {
1.131 nicm 520: struct mouse_event *m = &c->tty.mouse;
1.132 nicm 521: struct session *s = c->session;
1.18 nicm 522: struct window *w;
523: struct window_pane *wp;
524: struct timeval tv;
1.132 nicm 525: struct key_table *table = c->keytable;
526: struct key_binding bd_find, *bd;
527: int xtimeout;
1.18 nicm 528:
529: /* Check the client is good to accept input. */
1.132 nicm 530: if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
1.18 nicm 531: return;
1.132 nicm 532: w = s->curw->window;
533: wp = w->active;
1.86 nicm 534:
1.131 nicm 535: /* No session, do nothing. */
1.18 nicm 536: if (c->session == NULL)
537: return;
538: s = c->session;
1.131 nicm 539: w = c->session->curw->window;
540: wp = w->active;
1.18 nicm 541:
542: /* Update the activity timer. */
543: if (gettimeofday(&c->activity_time, NULL) != 0)
544: fatal("gettimeofday failed");
1.82 nicm 545: memcpy(&s->last_activity_time, &s->activity_time,
546: sizeof s->last_activity_time);
1.18 nicm 547: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
548:
1.132 nicm 549: /* Number keys jump to pane in identify mode. */
1.25 nicm 550: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 551: if (c->flags & CLIENT_READONLY)
552: return;
1.95 nicm 553: window_unzoom(w);
1.18 nicm 554: wp = window_pane_at_index(w, key - '0');
555: if (wp != NULL && window_pane_visible(wp))
556: window_set_active_pane(w, wp);
557: server_clear_identify(c);
558: return;
559: }
560:
561: /* Handle status line. */
1.30 nicm 562: if (!(c->flags & CLIENT_READONLY)) {
563: status_message_clear(c);
564: server_clear_identify(c);
565: }
1.18 nicm 566: if (c->prompt_string != NULL) {
1.30 nicm 567: if (!(c->flags & CLIENT_READONLY))
568: status_prompt_key(c, key);
1.18 nicm 569: return;
570: }
571:
572: /* Check for mouse keys. */
573: if (key == KEYC_MOUSE) {
1.30 nicm 574: if (c->flags & CLIENT_READONLY)
575: return;
1.131 nicm 576: key = server_client_check_mouse(c);
577: if (key == KEYC_NONE)
578: return;
579:
580: m->valid = 1;
581: m->key = key;
582:
583: if (!options_get_number(&s->options, "mouse")) {
584: window_pane_key(wp, c, s, key, m);
585: return;
586: }
587: } else
588: m->valid = 0;
1.18 nicm 589:
1.132 nicm 590: /* Treat everything as a regular key when pasting is detected. */
591: if (server_client_assume_paste(s)) {
592: if (!(c->flags & CLIENT_READONLY))
593: window_pane_key(wp, c, s, key, m);
594: return;
595: }
1.18 nicm 596:
1.132 nicm 597: retry:
598: /* Try to see if there is a key binding in the current table. */
599: bd_find.key = key;
600: bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
601: if (bd != NULL) {
602: /*
603: * Key was matched in this table. If currently repeating but a
604: * non-repeating binding was found, stop repeating and try
605: * again in the root table.
606: */
607: if ((c->flags & CLIENT_REPEAT) && !bd->can_repeat) {
608: server_client_key_table(c, "root");
609: c->flags &= ~CLIENT_REPEAT;
1.85 nicm 610: server_status_client(c);
1.132 nicm 611: goto retry;
1.18 nicm 612: }
1.82 nicm 613:
1.132 nicm 614: /*
615: * Take a reference to this table to make sure the key binding
616: * doesn't disappear.
617: */
618: table->references++;
619:
620: /*
621: * If this is a repeating key, start the timer. Otherwise reset
622: * the client back to the root table.
623: */
624: xtimeout = options_get_number(&s->options, "repeat-time");
625: if (xtimeout != 0 && bd->can_repeat) {
626: c->flags |= CLIENT_REPEAT;
627:
628: tv.tv_sec = xtimeout / 1000;
629: tv.tv_usec = (xtimeout % 1000) * 1000L;
630: evtimer_del(&c->repeat_timer);
631: evtimer_add(&c->repeat_timer, &tv);
632: } else {
1.18 nicm 633: c->flags &= ~CLIENT_REPEAT;
1.132 nicm 634: server_client_key_table(c, "root");
1.18 nicm 635: }
1.132 nicm 636: server_status_client(c);
637:
638: /* Dispatch the key binding. */
639: key_bindings_dispatch(bd, c, m);
640: key_bindings_unref_table(table);
1.18 nicm 641: return;
642: }
643:
1.132 nicm 644: /*
645: * No match in this table. If repeating, switch the client back to the
646: * root table and try again.
647: */
648: if (c->flags & CLIENT_REPEAT) {
649: server_client_key_table(c, "root");
1.18 nicm 650: c->flags &= ~CLIENT_REPEAT;
1.132 nicm 651: server_status_client(c);
652: goto retry;
1.18 nicm 653: }
654:
1.132 nicm 655: /* If no match and we're not in the root table, that's it. */
656: if (strcmp(c->keytable->name, "root") != 0) {
657: server_client_key_table(c, "root");
658: server_status_client(c);
659: return;
1.18 nicm 660: }
661:
1.132 nicm 662: /*
663: * No match, but in the root table. Prefix switches to the prefix table
664: * and everything else is passed through.
665: */
666: if (key == options_get_number(&s->options, "prefix") ||
667: key == options_get_number(&s->options, "prefix2")) {
668: server_client_key_table(c, "prefix");
669: server_status_client(c);
670: } else if (!(c->flags & CLIENT_READONLY))
671: window_pane_key(wp, c, s, key, m);
1.18 nicm 672: }
673:
1.2 nicm 674: /* Client functions that need to happen every loop. */
675: void
676: server_client_loop(void)
677: {
678: struct client *c;
679: struct window *w;
680: struct window_pane *wp;
681:
1.135 nicm 682: TAILQ_FOREACH(c, &clients, entry) {
1.36 nicm 683: server_client_check_exit(c);
684: if (c->session != NULL) {
685: server_client_check_redraw(c);
686: server_client_reset_state(c);
687: }
1.2 nicm 688: }
689:
690: /*
691: * Any windows will have been redrawn as part of clients, so clear
1.92 nicm 692: * their flags now. Also check pane focus and resize.
1.2 nicm 693: */
1.134 nicm 694: RB_FOREACH(w, windows, &windows) {
1.2 nicm 695: w->flags &= ~WINDOW_REDRAW;
1.91 nicm 696: TAILQ_FOREACH(wp, &w->panes, entry) {
1.101 nicm 697: if (wp->fd != -1) {
698: server_client_check_focus(wp);
699: server_client_check_resize(wp);
700: }
1.2 nicm 701: wp->flags &= ~PANE_REDRAW;
1.91 nicm 702: }
1.2 nicm 703: }
1.92 nicm 704: }
705:
706: /* Check if pane should be resized. */
707: void
708: server_client_check_resize(struct window_pane *wp)
709: {
710: struct winsize ws;
711:
1.101 nicm 712: if (!(wp->flags & PANE_RESIZE))
1.92 nicm 713: return;
714:
715: memset(&ws, 0, sizeof ws);
716: ws.ws_col = wp->sx;
717: ws.ws_row = wp->sy;
718:
1.100 nicm 719: if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
1.92 nicm 720: fatal("ioctl failed");
721:
722: wp->flags &= ~PANE_RESIZE;
1.91 nicm 723: }
724:
725: /* Check whether pane should be focused. */
726: void
727: server_client_check_focus(struct window_pane *wp)
728: {
1.93 nicm 729: struct client *c;
1.102 nicm 730: int push;
1.103 nicm 731:
732: /* Are focus events off? */
733: if (!options_get_number(&global_options, "focus-events"))
734: return;
1.102 nicm 735:
736: /* Do we need to push the focus state? */
737: push = wp->flags & PANE_FOCUSPUSH;
738: wp->flags &= ~PANE_FOCUSPUSH;
1.91 nicm 739:
740: /* If we don't care about focus, forget it. */
741: if (!(wp->base.mode & MODE_FOCUSON))
742: return;
743:
744: /* If we're not the active pane in our window, we're not focused. */
745: if (wp->window->active != wp)
746: goto not_focused;
747:
748: /* If we're in a mode, we're not focused. */
749: if (wp->screen != &wp->base)
750: goto not_focused;
751:
752: /*
1.93 nicm 753: * If our window is the current window in any focused clients with an
754: * attached session, we're focused.
1.91 nicm 755: */
1.135 nicm 756: TAILQ_FOREACH(c, &clients, entry) {
757: if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
1.91 nicm 758: continue;
1.93 nicm 759: if (c->session->flags & SESSION_UNATTACHED)
760: continue;
761:
762: if (c->session->curw->window == wp->window)
1.91 nicm 763: goto focused;
764: }
765:
766: not_focused:
1.102 nicm 767: if (push || (wp->flags & PANE_FOCUSED))
1.91 nicm 768: bufferevent_write(wp->event, "\033[O", 3);
769: wp->flags &= ~PANE_FOCUSED;
770: return;
771:
772: focused:
1.102 nicm 773: if (push || !(wp->flags & PANE_FOCUSED))
1.91 nicm 774: bufferevent_write(wp->event, "\033[I", 3);
775: wp->flags |= PANE_FOCUSED;
1.2 nicm 776: }
777:
1.18 nicm 778: /*
779: * Update cursor position and mode settings. The scroll region and attributes
780: * are cleared when idle (waiting for an event) as this is the most likely time
781: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
782: * compromise between excessive resets and likelihood of an interrupt.
783: *
784: * tty_region/tty_reset/tty_update_mode already take care of not resetting
785: * things that are already in their default state.
786: */
1.1 nicm 787: void
1.18 nicm 788: server_client_reset_state(struct client *c)
1.1 nicm 789: {
1.18 nicm 790: struct window *w = c->session->curw->window;
791: struct window_pane *wp = w->active;
792: struct screen *s = wp->screen;
793: struct options *oo = &c->session->options;
1.66 nicm 794: int status, mode, o;
1.60 nicm 795:
796: if (c->flags & CLIENT_SUSPENDED)
797: return;
1.1 nicm 798:
1.86 nicm 799: if (c->flags & CLIENT_CONTROL)
800: return;
801:
1.1 nicm 802: tty_region(&c->tty, 0, c->tty.sy - 1);
803:
804: status = options_get_number(oo, "status");
805: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
806: tty_cursor(&c->tty, 0, 0);
1.66 nicm 807: else {
1.126 nicm 808: o = status && options_get_number(oo, "status-position") == 0;
1.66 nicm 809: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
810: }
1.1 nicm 811:
1.50 nicm 812: /*
1.131 nicm 813: * Set mouse mode if requested. To support dragging, always use button
814: * mode.
1.57 nicm 815: */
816: mode = s->mode;
1.131 nicm 817: if (options_get_number(oo, "mouse"))
818: mode = (mode & ~ALL_MOUSE_MODES) | MODE_MOUSE_BUTTON;
1.48 nicm 819:
820: /*
821: * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
822: * user has set mouse-utf8 and any mouse mode is in effect, turn on
823: * UTF-8 mouse input. If the receiving terminal hasn't requested it
824: * (that is, it isn't in s->mode), then it'll be converted in
825: * input_mouse.
826: */
827: if ((c->tty.flags & TTY_UTF8) &&
828: (mode & ALL_MOUSE_MODES) && options_get_number(oo, "mouse-utf8"))
829: mode |= MODE_MOUSE_UTF8;
830: else
831: mode &= ~MODE_MOUSE_UTF8;
832:
833: /* Set the terminal mode and reset attributes. */
1.59 nicm 834: tty_update_mode(&c->tty, mode, s);
1.1 nicm 835: tty_reset(&c->tty);
1.17 nicm 836: }
837:
838: /* Repeat time callback. */
839: void
840: server_client_repeat_timer(unused int fd, unused short events, void *data)
841: {
842: struct client *c = data;
843:
1.85 nicm 844: if (c->flags & CLIENT_REPEAT) {
1.132 nicm 845: server_client_key_table(c, "root");
846: c->flags &= ~CLIENT_REPEAT;
847: server_status_client(c);
1.85 nicm 848: }
1.1 nicm 849: }
850:
1.36 nicm 851: /* Check if client should be exited. */
852: void
853: server_client_check_exit(struct client *c)
854: {
855: if (!(c->flags & CLIENT_EXIT))
856: return;
857:
1.73 nicm 858: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
859: return;
860: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 861: return;
1.73 nicm 862: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 863: return;
864:
1.107 nicm 865: server_write_client(c, MSG_EXIT, &c->retval, sizeof c->retval);
1.36 nicm 866: c->flags &= ~CLIENT_EXIT;
1.38 nicm 867: }
868:
1.1 nicm 869: /* Check for client redraws. */
870: void
871: server_client_check_redraw(struct client *c)
872: {
873: struct session *s = c->session;
1.137 nicm 874: struct tty *tty = &c->tty;
1.1 nicm 875: struct window_pane *wp;
876: int flags, redraw;
877:
1.86 nicm 878: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79 nicm 879: return;
880:
1.1 nicm 881: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
882: if (options_get_number(&s->options, "set-titles"))
883: server_client_set_title(c);
1.12 nicm 884:
1.1 nicm 885: if (c->message_string != NULL)
886: redraw = status_message_redraw(c);
887: else if (c->prompt_string != NULL)
888: redraw = status_prompt_redraw(c);
889: else
890: redraw = status_redraw(c);
891: if (!redraw)
892: c->flags &= ~CLIENT_STATUS;
893: }
894:
1.137 nicm 895: flags = tty->flags & (TTY_FREEZE|TTY_NOCURSOR);
896: tty->flags = (tty->flags & ~TTY_FREEZE) | TTY_NOCURSOR;
897:
1.1 nicm 898: if (c->flags & CLIENT_REDRAW) {
1.137 nicm 899: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 900: screen_redraw_screen(c, 1, 1, 1);
1.27 nicm 901: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 902: } else if (c->flags & CLIENT_REDRAWWINDOW) {
1.137 nicm 903: tty_update_mode(tty, tty->mode, NULL);
1.38 nicm 904: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
905: screen_redraw_pane(c, wp);
906: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 907: } else {
908: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
1.137 nicm 909: if (wp->flags & PANE_REDRAW) {
910: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 911: screen_redraw_pane(c, wp);
1.137 nicm 912: }
1.1 nicm 913: }
914: }
915:
1.137 nicm 916: if (c->flags & CLIENT_BORDERS) {
917: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 918: screen_redraw_screen(c, 0, 0, 1);
1.137 nicm 919: }
1.27 nicm 920:
1.137 nicm 921: if (c->flags & CLIENT_STATUS) {
922: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 923: screen_redraw_screen(c, 0, 1, 0);
1.137 nicm 924: }
1.1 nicm 925:
1.137 nicm 926: tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags;
927: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 928:
1.27 nicm 929: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 930: }
931:
932: /* Set client title. */
933: void
934: server_client_set_title(struct client *c)
935: {
1.128 nicm 936: struct session *s = c->session;
937: const char *template;
938: char *title;
939: struct format_tree *ft;
1.1 nicm 940:
941: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 942:
1.128 nicm 943: ft = format_create();
944: format_defaults(ft, c, NULL, NULL, NULL);
945:
946: title = format_expand_time(ft, template, time(NULL));
1.1 nicm 947: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 nicm 948: free(c->title);
1.1 nicm 949: c->title = xstrdup(title);
950: tty_set_title(&c->tty, c->title);
951: }
1.77 nicm 952: free(title);
1.128 nicm 953:
954: format_free(ft);
1.1 nicm 955: }
956:
957: /* Dispatch message from client. */
958: int
959: server_client_msg_dispatch(struct client *c)
960: {
961: struct imsg imsg;
1.73 nicm 962: struct msg_stdin_data stdindata;
1.108 nicm 963: const char *data;
1.1 nicm 964: ssize_t n, datalen;
965:
1.8 deraadt 966: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
967: return (-1);
1.1 nicm 968:
969: for (;;) {
970: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
971: return (-1);
972: if (n == 0)
973: return (0);
1.108 nicm 974:
975: data = imsg.data;
1.1 nicm 976: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
977:
978: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
979: server_write_client(c, MSG_VERSION, NULL, 0);
980: c->flags |= CLIENT_BAD;
1.112 nicm 981: if (imsg.fd != -1)
982: close(imsg.fd);
1.1 nicm 983: imsg_free(&imsg);
984: continue;
985: }
986:
1.129 nicm 987: log_debug("got %u from client %d", imsg.hdr.type, c->ibuf.fd);
1.1 nicm 988: switch (imsg.hdr.type) {
1.109 nicm 989: case MSG_IDENTIFY_FLAGS:
990: case MSG_IDENTIFY_TERM:
991: case MSG_IDENTIFY_TTYNAME:
992: case MSG_IDENTIFY_CWD:
993: case MSG_IDENTIFY_STDIN:
994: case MSG_IDENTIFY_ENVIRON:
995: case MSG_IDENTIFY_DONE:
996: server_client_msg_identify(c, &imsg);
1.1 nicm 997: break;
1.108 nicm 998: case MSG_COMMAND:
999: server_client_msg_command(c, &imsg);
1000: break;
1.73 nicm 1001: case MSG_STDIN:
1002: if (datalen != sizeof stdindata)
1003: fatalx("bad MSG_STDIN size");
1.108 nicm 1004: memcpy(&stdindata, data, sizeof stdindata);
1.36 nicm 1005:
1.73 nicm 1006: if (c->stdin_callback == NULL)
1007: break;
1008: if (stdindata.size <= 0)
1009: c->stdin_closed = 1;
1010: else {
1011: evbuffer_add(c->stdin_data, stdindata.data,
1012: stdindata.size);
1013: }
1014: c->stdin_callback(c, c->stdin_closed,
1015: c->stdin_callback_data);
1.33 nicm 1016: break;
1.1 nicm 1017: case MSG_RESIZE:
1018: if (datalen != 0)
1019: fatalx("bad MSG_RESIZE size");
1020:
1.86 nicm 1021: if (c->flags & CLIENT_CONTROL)
1022: break;
1.32 nicm 1023: if (tty_resize(&c->tty)) {
1024: recalculate_sizes();
1025: server_redraw_client(c);
1026: }
1.1 nicm 1027: break;
1028: case MSG_EXITING:
1029: if (datalen != 0)
1030: fatalx("bad MSG_EXITING size");
1031:
1032: c->session = NULL;
1033: tty_close(&c->tty);
1034: server_write_client(c, MSG_EXITED, NULL, 0);
1035: break;
1036: case MSG_WAKEUP:
1037: case MSG_UNLOCK:
1038: if (datalen != 0)
1039: fatalx("bad MSG_WAKEUP size");
1040:
1041: if (!(c->flags & CLIENT_SUSPENDED))
1042: break;
1043: c->flags &= ~CLIENT_SUSPENDED;
1.121 nicm 1044:
1045: if (c->tty.fd == -1) /* exited in the meantime */
1046: break;
1.10 nicm 1047:
1.11 nicm 1048: if (gettimeofday(&c->activity_time, NULL) != 0)
1049: fatal("gettimeofday");
1.47 nicm 1050: if (c->session != NULL)
1051: session_update_activity(c->session);
1.10 nicm 1052:
1.1 nicm 1053: tty_start_tty(&c->tty);
1054: server_redraw_client(c);
1055: recalculate_sizes();
1056: break;
1057: case MSG_SHELL:
1058: if (datalen != 0)
1059: fatalx("bad MSG_SHELL size");
1060:
1061: server_client_msg_shell(c);
1062: break;
1063: }
1064:
1065: imsg_free(&imsg);
1066: }
1067: }
1068:
1069: /* Handle command message. */
1070: void
1.108 nicm 1071: server_client_msg_command(struct client *c, struct imsg *imsg)
1.1 nicm 1072: {
1.108 nicm 1073: struct msg_command_data data;
1074: char *buf;
1075: size_t len;
1076: struct cmd_list *cmdlist = NULL;
1077: int argc;
1078: char **argv, *cause;
1079:
1080: if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data)
1081: fatalx("bad MSG_COMMAND size");
1082: memcpy(&data, imsg->data, sizeof data);
1083:
1.124 nicm 1084: buf = (char *)imsg->data + sizeof data;
1.108 nicm 1085: len = imsg->hdr.len - IMSG_HEADER_SIZE - sizeof data;
1086: if (len > 0 && buf[len - 1] != '\0')
1087: fatalx("bad MSG_COMMAND string");
1088:
1089: argc = data.argc;
1090: if (cmd_unpack_argv(buf, len, argc, &argv) != 0) {
1.94 nicm 1091: cmdq_error(c->cmdq, "command too long");
1.1 nicm 1092: goto error;
1093: }
1094:
1095: if (argc == 0) {
1096: argc = 1;
1097: argv = xcalloc(1, sizeof *argv);
1098: *argv = xstrdup("new-session");
1099: }
1100:
1.94 nicm 1101: if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) {
1102: cmdq_error(c->cmdq, "%s", cause);
1.1 nicm 1103: cmd_free_argv(argc, argv);
1104: goto error;
1105: }
1106: cmd_free_argv(argc, argv);
1107:
1.113 nicm 1108: if (c != cfg_client || cfg_finished)
1.131 nicm 1109: cmdq_run(c->cmdq, cmdlist, NULL);
1.113 nicm 1110: else
1.131 nicm 1111: cmdq_append(c->cmdq, cmdlist, NULL);
1.1 nicm 1112: cmd_list_free(cmdlist);
1113: return;
1114:
1115: error:
1116: if (cmdlist != NULL)
1117: cmd_list_free(cmdlist);
1.88 nicm 1118:
1.36 nicm 1119: c->flags |= CLIENT_EXIT;
1.1 nicm 1120: }
1121:
1122: /* Handle identify message. */
1123: void
1.109 nicm 1124: server_client_msg_identify(struct client *c, struct imsg *imsg)
1.1 nicm 1125: {
1.109 nicm 1126: const char *data;
1127: size_t datalen;
1128: int flags;
1129:
1130: if (c->flags & CLIENT_IDENTIFIED)
1131: fatalx("out-of-order identify message");
1132:
1133: data = imsg->data;
1134: datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1135:
1136: switch (imsg->hdr.type) {
1137: case MSG_IDENTIFY_FLAGS:
1138: if (datalen != sizeof flags)
1139: fatalx("bad MSG_IDENTIFY_FLAGS size");
1140: memcpy(&flags, data, sizeof flags);
1141: c->flags |= flags;
1142: break;
1143: case MSG_IDENTIFY_TERM:
1.110 nicm 1144: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1145: fatalx("bad MSG_IDENTIFY_TERM string");
1146: c->term = xstrdup(data);
1147: break;
1148: case MSG_IDENTIFY_TTYNAME:
1.110 nicm 1149: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1150: fatalx("bad MSG_IDENTIFY_TTYNAME string");
1151: c->ttyname = xstrdup(data);
1152: break;
1153: case MSG_IDENTIFY_CWD:
1154: if (datalen != 0)
1155: fatalx("bad MSG_IDENTIFY_CWD size");
1156: c->cwd = imsg->fd;
1157: break;
1158: case MSG_IDENTIFY_STDIN:
1159: if (datalen != 0)
1160: fatalx("bad MSG_IDENTIFY_STDIN size");
1161: c->fd = imsg->fd;
1162: break;
1163: case MSG_IDENTIFY_ENVIRON:
1.110 nicm 1164: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1165: fatalx("bad MSG_IDENTIFY_ENVIRON string");
1166: if (strchr(data, '=') != NULL)
1167: environ_put(&c->environ, data);
1168: break;
1169: default:
1170: break;
1171: }
1172:
1173: if (imsg->hdr.type != MSG_IDENTIFY_DONE)
1174: return;
1175: c->flags |= CLIENT_IDENTIFIED;
1.75 nicm 1176:
1.109 nicm 1177: if (c->flags & CLIENT_CONTROL) {
1.75 nicm 1178: c->stdin_callback = control_callback;
1.109 nicm 1179:
1.97 nicm 1180: evbuffer_free(c->stderr_data);
1181: c->stderr_data = c->stdout_data;
1.109 nicm 1182:
1183: if (c->flags & CLIENT_CONTROLCONTROL)
1.96 nicm 1184: evbuffer_add_printf(c->stdout_data, "\033P1000p");
1.79 nicm 1185: server_write_client(c, MSG_STDIN, NULL, 0);
1.75 nicm 1186:
1187: c->tty.fd = -1;
1188: c->tty.log_fd = -1;
1189:
1.109 nicm 1190: close(c->fd);
1191: c->fd = -1;
1192:
1.75 nicm 1193: return;
1194: }
1.1 nicm 1195:
1.109 nicm 1196: if (c->fd == -1)
1.104 nicm 1197: return;
1.109 nicm 1198: if (!isatty(c->fd)) {
1199: close(c->fd);
1200: c->fd = -1;
1.80 nicm 1201: return;
1202: }
1.109 nicm 1203: tty_init(&c->tty, c, c->fd, c->term);
1204: if (c->flags & CLIENT_UTF8)
1.1 nicm 1205: c->tty.flags |= TTY_UTF8;
1.109 nicm 1206: if (c->flags & CLIENT_256COLOURS)
1.1 nicm 1207: c->tty.term_flags |= TERM_256COLOURS;
1208:
1209: tty_resize(&c->tty);
1210:
1.109 nicm 1211: if (!(c->flags & CLIENT_CONTROL))
1.86 nicm 1212: c->flags |= CLIENT_TERMINAL;
1.1 nicm 1213: }
1214:
1215: /* Handle shell message. */
1216: void
1217: server_client_msg_shell(struct client *c)
1218: {
1.107 nicm 1219: const char *shell;
1.25 nicm 1220:
1.1 nicm 1221: shell = options_get_string(&global_s_options, "default-shell");
1222: if (*shell == '\0' || areshell(shell))
1223: shell = _PATH_BSHELL;
1.107 nicm 1224: server_write_client(c, MSG_SHELL, shell, strlen(shell) + 1);
1.25 nicm 1225:
1.1 nicm 1226: c->flags |= CLIENT_BAD; /* it will die after exec */
1227: }
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