Annotation of src/usr.bin/tmux/server-client.c, Revision 1.100
1.100 ! nicm 1: /* $OpenBSD: server-client.c,v 1.99 2013/03/27 11:17:12 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:
1.12 nicm 22: #include <event.h>
1.1 nicm 23: #include <fcntl.h>
1.98 nicm 24: #include <paths.h>
25: #include <stdlib.h>
1.1 nicm 26: #include <string.h>
1.4 nicm 27: #include <time.h>
1.1 nicm 28: #include <unistd.h>
29:
30: #include "tmux.h"
31:
1.91 nicm 32: void server_client_check_focus(struct window_pane *);
1.92 nicm 33: void server_client_check_resize(struct window_pane *);
1.81 nicm 34: void server_client_check_mouse(struct client *, struct window_pane *);
1.17 nicm 35: void server_client_repeat_timer(int, short, void *);
1.36 nicm 36: void server_client_check_exit(struct client *);
1.1 nicm 37: void server_client_check_redraw(struct client *);
38: void server_client_set_title(struct client *);
1.18 nicm 39: void server_client_reset_state(struct client *);
1.82 nicm 40: int server_client_assume_paste(struct session *);
1.1 nicm 41:
42: int server_client_msg_dispatch(struct client *);
43: void server_client_msg_command(struct client *, struct msg_command_data *);
44: void server_client_msg_identify(
1.25 nicm 45: struct client *, struct msg_identify_data *, int);
1.1 nicm 46: void server_client_msg_shell(struct client *);
47:
48: /* Create a new client. */
49: void
50: server_client_create(int fd)
51: {
52: struct client *c;
53: u_int i;
54:
1.49 nicm 55: setblocking(fd, 0);
1.1 nicm 56:
57: c = xcalloc(1, sizeof *c);
58: c->references = 0;
59: imsg_init(&c->ibuf, fd);
1.14 nicm 60: server_update_event(c);
1.25 nicm 61:
1.10 nicm 62: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 63: fatal("gettimeofday failed");
1.11 nicm 64: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.1 nicm 65:
1.94 nicm 66: c->cmdq = cmdq_new(c);
67: c->cmdq->client_exit = 1;
68:
1.73 nicm 69: c->stdin_data = evbuffer_new ();
70: c->stdout_data = evbuffer_new ();
71: c->stderr_data = evbuffer_new ();
1.33 nicm 72:
1.1 nicm 73: c->tty.fd = -1;
74: c->title = NULL;
75:
76: c->session = NULL;
1.45 nicm 77: c->last_session = NULL;
1.1 nicm 78: c->tty.sx = 80;
79: c->tty.sy = 24;
80:
81: screen_init(&c->status, c->tty.sx, 1, 0);
1.51 nicm 82: RB_INIT(&c->status_new);
83: RB_INIT(&c->status_old);
1.1 nicm 84:
85: c->message_string = NULL;
1.21 nicm 86: ARRAY_INIT(&c->message_log);
1.1 nicm 87:
88: c->prompt_string = NULL;
89: c->prompt_buffer = NULL;
90: c->prompt_index = 0;
91:
1.81 nicm 92: c->tty.mouse.xb = c->tty.mouse.button = 3;
93: c->tty.mouse.x = c->tty.mouse.y = -1;
94: c->tty.mouse.lx = c->tty.mouse.ly = -1;
95: c->tty.mouse.sx = c->tty.mouse.sy = -1;
96: c->tty.mouse.event = MOUSE_EVENT_UP;
97: c->tty.mouse.flags = 0;
1.57 nicm 98:
1.93 nicm 99: c->flags |= CLIENT_FOCUSED;
100:
1.17 nicm 101: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
102:
1.1 nicm 103: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
104: if (ARRAY_ITEM(&clients, i) == NULL) {
105: ARRAY_SET(&clients, i, c);
106: return;
107: }
108: }
109: ARRAY_ADD(&clients, c);
110: log_debug("new client %d", fd);
1.72 nicm 111: }
112:
113: /* Open client terminal if needed. */
114: int
115: server_client_open(struct client *c, struct session *s, char **cause)
116: {
117: struct options *oo = s != NULL ? &s->options : &global_s_options;
118: char *overrides;
119:
1.75 nicm 120: if (c->flags & CLIENT_CONTROL)
121: return (0);
122:
1.72 nicm 123: if (!(c->flags & CLIENT_TERMINAL)) {
124: *cause = xstrdup ("not a terminal");
125: return (-1);
126: }
127:
128: overrides = options_get_string(oo, "terminal-overrides");
129: if (tty_open(&c->tty, overrides, cause) != 0)
130: return (-1);
131:
132: return (0);
1.1 nicm 133: }
134:
135: /* Lost a client. */
136: void
137: server_client_lost(struct client *c)
138: {
1.21 nicm 139: struct message_entry *msg;
140: u_int i;
1.1 nicm 141:
142: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
143: if (ARRAY_ITEM(&clients, i) == c)
144: ARRAY_SET(&clients, i, NULL);
145: }
146: log_debug("lost client %d", c->ibuf.fd);
147:
148: /*
149: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
150: * and tty_free might close an unrelated fd.
151: */
152: if (c->flags & CLIENT_TERMINAL)
153: tty_free(&c->tty);
154:
1.73 nicm 155: evbuffer_free (c->stdin_data);
156: evbuffer_free (c->stdout_data);
1.97 nicm 157: if (c->stderr_data != c->stdout_data)
158: evbuffer_free (c->stderr_data);
1.33 nicm 159:
1.51 nicm 160: status_free_jobs(&c->status_new);
161: status_free_jobs(&c->status_old);
1.1 nicm 162: screen_free(&c->status);
163:
1.77 nicm 164: free(c->title);
1.1 nicm 165:
1.17 nicm 166: evtimer_del(&c->repeat_timer);
167:
1.69 nicm 168: if (event_initialized(&c->identify_timer))
169: evtimer_del(&c->identify_timer);
1.15 nicm 170:
1.77 nicm 171: free(c->message_string);
1.69 nicm 172: if (event_initialized (&c->message_timer))
173: evtimer_del(&c->message_timer);
1.21 nicm 174: for (i = 0; i < ARRAY_LENGTH(&c->message_log); i++) {
175: msg = &ARRAY_ITEM(&c->message_log, i);
1.77 nicm 176: free(msg->msg);
1.21 nicm 177: }
178: ARRAY_FREE(&c->message_log);
1.1 nicm 179:
1.77 nicm 180: free(c->prompt_string);
181: free(c->prompt_buffer);
182: free(c->cwd);
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:
1.1 nicm 195: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
196: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
197: ARRAY_SET(&dead_clients, i, c);
198: break;
199: }
200: }
201: if (i == ARRAY_LENGTH(&dead_clients))
202: ARRAY_ADD(&dead_clients, c);
203: c->flags |= CLIENT_DEAD;
1.71 nicm 204:
205: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 206:
207: recalculate_sizes();
1.41 nicm 208: server_check_unattached();
1.19 nicm 209: server_update_socket();
1.9 nicm 210: }
211:
1.1 nicm 212: /* Process a single client event. */
213: void
1.12 nicm 214: server_client_callback(int fd, short events, void *data)
1.1 nicm 215: {
216: struct client *c = data;
1.7 nicm 217:
218: if (c->flags & CLIENT_DEAD)
219: return;
1.1 nicm 220:
221: if (fd == c->ibuf.fd) {
1.12 nicm 222: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 223: goto client_lost;
224:
225: if (c->flags & CLIENT_BAD) {
226: if (c->ibuf.w.queued == 0)
227: goto client_lost;
228: return;
229: }
230:
1.12 nicm 231: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 232: goto client_lost;
233: }
1.14 nicm 234:
1.73 nicm 235: server_push_stdout(c);
236: server_push_stderr(c);
237:
1.25 nicm 238: server_update_event(c);
1.1 nicm 239: return;
240:
241: client_lost:
242: server_client_lost(c);
243: }
244:
1.16 nicm 245: /* Handle client status timer. */
246: void
247: server_client_status_timer(void)
248: {
249: struct client *c;
250: struct session *s;
251: struct timeval tv;
1.20 nicm 252: u_int i;
253: int interval;
254: time_t difference;
1.16 nicm 255:
256: if (gettimeofday(&tv, NULL) != 0)
257: fatal("gettimeofday failed");
258:
259: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
260: c = ARRAY_ITEM(&clients, i);
261: if (c == NULL || c->session == NULL)
262: continue;
263: if (c->message_string != NULL || c->prompt_string != NULL) {
264: /*
265: * Don't need timed redraw for messages/prompts so bail
266: * now. The status timer isn't reset when they are
267: * redrawn anyway.
268: */
269: continue;
270: }
271: s = c->session;
272:
273: if (!options_get_number(&s->options, "status"))
274: continue;
275: interval = options_get_number(&s->options, "status-interval");
276:
1.20 nicm 277: difference = tv.tv_sec - c->status_timer.tv_sec;
278: if (difference >= interval) {
1.51 nicm 279: status_update_jobs(c);
1.16 nicm 280: c->flags |= CLIENT_STATUS;
281: }
282: }
283: }
284:
1.66 nicm 285: /* Check for mouse keys. */
286: void
1.81 nicm 287: server_client_check_mouse(struct client *c, struct window_pane *wp)
1.66 nicm 288: {
1.81 nicm 289: struct session *s = c->session;
290: struct options *oo = &s->options;
291: struct mouse_event *m = &c->tty.mouse;
292: int statusat;
1.66 nicm 293:
294: statusat = status_at_line(c);
295:
296: /* Is this a window selection click on the status line? */
1.81 nicm 297: if (statusat != -1 && m->y == (u_int)statusat &&
1.66 nicm 298: options_get_number(oo, "mouse-select-window")) {
1.81 nicm 299: if (m->event & MOUSE_EVENT_CLICK) {
300: status_set_window_at(c, m->x);
301: } else if (m->event == MOUSE_EVENT_WHEEL) {
302: if (m->wheel == MOUSE_WHEEL_UP)
1.66 nicm 303: session_previous(c->session, 0);
1.81 nicm 304: else if (m->wheel == MOUSE_WHEEL_DOWN)
1.66 nicm 305: session_next(c->session, 0);
1.81 nicm 306: server_redraw_session(s);
1.66 nicm 307: }
1.81 nicm 308: recalculate_sizes();
1.67 nicm 309: return;
1.66 nicm 310: }
311:
312: /*
313: * Not on status line - adjust mouse position if status line is at the
314: * top and limit if at the bottom. From here on a struct mouse
315: * represents the offset onto the window itself.
316: */
1.81 nicm 317: if (statusat == 0 && m->y > 0)
318: m->y--;
319: else if (statusat > 0 && m->y >= (u_int)statusat)
320: m->y = statusat - 1;
1.66 nicm 321:
322: /* Is this a pane selection? Allow down only in copy mode. */
323: if (options_get_number(oo, "mouse-select-pane") &&
1.81 nicm 324: (m->event == MOUSE_EVENT_DOWN || wp->mode != &window_copy_mode)) {
325: window_set_active_at(wp->window, m->x, m->y);
1.66 nicm 326: server_redraw_window_borders(wp->window);
327: wp = wp->window->active; /* may have changed */
328: }
329:
330: /* Check if trying to resize pane. */
331: if (options_get_number(oo, "mouse-resize-pane"))
1.81 nicm 332: layout_resize_pane_mouse(c);
1.66 nicm 333:
334: /* Update last and pass through to client. */
1.81 nicm 335: window_pane_mouse(wp, c->session, m);
1.66 nicm 336: }
337:
1.82 nicm 338: /* Is this fast enough to probably be a paste? */
339: int
340: server_client_assume_paste(struct session *s)
341: {
342: struct timeval tv;
1.84 nicm 343: int t;
1.82 nicm 344:
345: if ((t = options_get_number(&s->options, "assume-paste-time")) == 0)
1.83 nicm 346: return (0);
1.82 nicm 347:
348: timersub(&s->activity_time, &s->last_activity_time, &tv);
349: if (tv.tv_sec == 0 && tv.tv_usec < t * 1000)
1.83 nicm 350: return (1);
351: return (0);
1.82 nicm 352: }
353:
1.18 nicm 354: /* Handle data key input from client. */
355: void
1.74 nicm 356: server_client_handle_key(struct client *c, int key)
1.18 nicm 357: {
358: struct session *s;
359: struct window *w;
360: struct window_pane *wp;
361: struct timeval tv;
362: struct key_binding *bd;
1.82 nicm 363: int xtimeout, isprefix, ispaste;
1.18 nicm 364:
365: /* Check the client is good to accept input. */
366: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
367: return;
1.86 nicm 368:
1.18 nicm 369: if (c->session == NULL)
370: return;
371: s = c->session;
372:
373: /* Update the activity timer. */
374: if (gettimeofday(&c->activity_time, NULL) != 0)
375: fatal("gettimeofday failed");
1.82 nicm 376:
377: memcpy(&s->last_activity_time, &s->activity_time,
378: sizeof s->last_activity_time);
1.18 nicm 379: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
380:
381: w = c->session->curw->window;
382: wp = w->active;
383:
384: /* Special case: number keys jump to pane in identify mode. */
1.25 nicm 385: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 386: if (c->flags & CLIENT_READONLY)
387: return;
1.95 nicm 388: window_unzoom(w);
1.18 nicm 389: wp = window_pane_at_index(w, key - '0');
390: if (wp != NULL && window_pane_visible(wp))
391: window_set_active_pane(w, wp);
392: server_clear_identify(c);
393: return;
394: }
395:
396: /* Handle status line. */
1.30 nicm 397: if (!(c->flags & CLIENT_READONLY)) {
398: status_message_clear(c);
399: server_clear_identify(c);
400: }
1.18 nicm 401: if (c->prompt_string != NULL) {
1.30 nicm 402: if (!(c->flags & CLIENT_READONLY))
403: status_prompt_key(c, key);
1.18 nicm 404: return;
405: }
406:
407: /* Check for mouse keys. */
408: if (key == KEYC_MOUSE) {
1.30 nicm 409: if (c->flags & CLIENT_READONLY)
410: return;
1.81 nicm 411: server_client_check_mouse(c, wp);
1.18 nicm 412: return;
413: }
414:
415: /* Is this a prefix key? */
1.82 nicm 416: if (key == options_get_number(&s->options, "prefix"))
1.63 nicm 417: isprefix = 1;
1.82 nicm 418: else if (key == options_get_number(&s->options, "prefix2"))
1.63 nicm 419: isprefix = 1;
420: else
421: isprefix = 0;
1.18 nicm 422:
1.82 nicm 423: /* Treat prefix as a regular key when pasting is detected. */
424: ispaste = server_client_assume_paste(s);
425: if (ispaste)
426: isprefix = 0;
427:
1.18 nicm 428: /* No previous prefix key. */
429: if (!(c->flags & CLIENT_PREFIX)) {
1.82 nicm 430: if (isprefix) {
1.18 nicm 431: c->flags |= CLIENT_PREFIX;
1.85 nicm 432: server_status_client(c);
1.82 nicm 433: return;
1.18 nicm 434: }
1.82 nicm 435:
436: /* Try as a non-prefix key binding. */
437: if (ispaste || (bd = key_bindings_lookup(key)) == NULL) {
438: if (!(c->flags & CLIENT_READONLY))
439: window_pane_key(wp, s, key);
440: } else
441: key_bindings_dispatch(bd, c);
1.18 nicm 442: return;
443: }
444:
445: /* Prefix key already pressed. Reset prefix and lookup key. */
446: c->flags &= ~CLIENT_PREFIX;
1.85 nicm 447: server_status_client(c);
1.18 nicm 448: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
449: /* If repeating, treat this as a key, else ignore. */
450: if (c->flags & CLIENT_REPEAT) {
451: c->flags &= ~CLIENT_REPEAT;
452: if (isprefix)
453: c->flags |= CLIENT_PREFIX;
1.30 nicm 454: else if (!(c->flags & CLIENT_READONLY))
1.82 nicm 455: window_pane_key(wp, s, key);
1.18 nicm 456: }
457: return;
458: }
459:
460: /* If already repeating, but this key can't repeat, skip it. */
461: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
462: c->flags &= ~CLIENT_REPEAT;
463: if (isprefix)
464: c->flags |= CLIENT_PREFIX;
1.30 nicm 465: else if (!(c->flags & CLIENT_READONLY))
1.82 nicm 466: window_pane_key(wp, s, key);
1.18 nicm 467: return;
468: }
469:
470: /* If this key can repeat, reset the repeat flags and timer. */
1.82 nicm 471: xtimeout = options_get_number(&s->options, "repeat-time");
1.18 nicm 472: if (xtimeout != 0 && bd->can_repeat) {
473: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 474:
1.18 nicm 475: tv.tv_sec = xtimeout / 1000;
476: tv.tv_usec = (xtimeout % 1000) * 1000L;
477: evtimer_del(&c->repeat_timer);
478: evtimer_add(&c->repeat_timer, &tv);
479: }
480:
481: /* Dispatch the command. */
482: key_bindings_dispatch(bd, c);
483: }
484:
1.2 nicm 485: /* Client functions that need to happen every loop. */
486: void
487: server_client_loop(void)
488: {
489: struct client *c;
490: struct window *w;
491: struct window_pane *wp;
492: u_int i;
493:
494: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
495: c = ARRAY_ITEM(&clients, i);
1.36 nicm 496: if (c == NULL)
1.2 nicm 497: continue;
498:
1.36 nicm 499: server_client_check_exit(c);
500: if (c->session != NULL) {
501: server_client_check_redraw(c);
502: server_client_reset_state(c);
503: }
1.2 nicm 504: }
505:
506: /*
507: * Any windows will have been redrawn as part of clients, so clear
1.92 nicm 508: * their flags now. Also check pane focus and resize.
1.2 nicm 509: */
510: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
511: w = ARRAY_ITEM(&windows, i);
512: if (w == NULL)
513: continue;
514:
515: w->flags &= ~WINDOW_REDRAW;
1.91 nicm 516: TAILQ_FOREACH(wp, &w->panes, entry) {
517: server_client_check_focus(wp);
1.92 nicm 518: server_client_check_resize(wp);
1.2 nicm 519: wp->flags &= ~PANE_REDRAW;
1.91 nicm 520: }
1.2 nicm 521: }
1.92 nicm 522: }
523:
524: /* Check if pane should be resized. */
525: void
526: server_client_check_resize(struct window_pane *wp)
527: {
528: struct winsize ws;
529:
530: if (wp->fd == -1 || !(wp->flags & PANE_RESIZE))
531: return;
532:
533: memset(&ws, 0, sizeof ws);
534: ws.ws_col = wp->sx;
535: ws.ws_row = wp->sy;
536:
1.100 ! nicm 537: if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
1.92 nicm 538: fatal("ioctl failed");
539:
540: wp->flags &= ~PANE_RESIZE;
1.91 nicm 541: }
542:
543: /* Check whether pane should be focused. */
544: void
545: server_client_check_focus(struct window_pane *wp)
546: {
1.93 nicm 547: u_int i;
548: struct client *c;
1.91 nicm 549:
550: /* If we don't care about focus, forget it. */
551: if (!(wp->base.mode & MODE_FOCUSON))
552: return;
553:
554: /* If we're not the active pane in our window, we're not focused. */
555: if (wp->window->active != wp)
556: goto not_focused;
557:
558: /* If we're in a mode, we're not focused. */
559: if (wp->screen != &wp->base)
560: goto not_focused;
561:
562: /*
1.93 nicm 563: * If our window is the current window in any focused clients with an
564: * attached session, we're focused.
1.91 nicm 565: */
1.93 nicm 566: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
567: c = ARRAY_ITEM(&clients, i);
568: if (c == NULL || c->session == NULL)
569: continue;
570:
571: if (!(c->flags & CLIENT_FOCUSED))
1.91 nicm 572: continue;
1.93 nicm 573: if (c->session->flags & SESSION_UNATTACHED)
574: continue;
575:
576: if (c->session->curw->window == wp->window)
1.91 nicm 577: goto focused;
578: }
579:
580: not_focused:
581: if (wp->flags & PANE_FOCUSED)
582: bufferevent_write(wp->event, "\033[O", 3);
583: wp->flags &= ~PANE_FOCUSED;
584: return;
585:
586: focused:
587: if (!(wp->flags & PANE_FOCUSED))
588: bufferevent_write(wp->event, "\033[I", 3);
589: wp->flags |= PANE_FOCUSED;
1.2 nicm 590: }
591:
1.18 nicm 592: /*
593: * Update cursor position and mode settings. The scroll region and attributes
594: * are cleared when idle (waiting for an event) as this is the most likely time
595: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
596: * compromise between excessive resets and likelihood of an interrupt.
597: *
598: * tty_region/tty_reset/tty_update_mode already take care of not resetting
599: * things that are already in their default state.
600: */
1.1 nicm 601: void
1.18 nicm 602: server_client_reset_state(struct client *c)
1.1 nicm 603: {
1.18 nicm 604: struct window *w = c->session->curw->window;
605: struct window_pane *wp = w->active;
606: struct screen *s = wp->screen;
607: struct options *oo = &c->session->options;
1.54 nicm 608: struct options *wo = &w->options;
1.66 nicm 609: int status, mode, o;
1.60 nicm 610:
611: if (c->flags & CLIENT_SUSPENDED)
612: return;
1.1 nicm 613:
1.86 nicm 614: if (c->flags & CLIENT_CONTROL)
615: return;
616:
1.1 nicm 617: tty_region(&c->tty, 0, c->tty.sy - 1);
618:
619: status = options_get_number(oo, "status");
620: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
621: tty_cursor(&c->tty, 0, 0);
1.66 nicm 622: else {
623: o = status && options_get_number (oo, "status-position") == 0;
624: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
625: }
1.1 nicm 626:
1.50 nicm 627: /*
1.57 nicm 628: * Resizing panes with the mouse requires at least button mode to give
629: * a smooth appearance.
630: */
631: mode = s->mode;
1.81 nicm 632: if ((c->tty.mouse.flags & MOUSE_RESIZE_PANE) &&
1.57 nicm 633: !(mode & (MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)))
634: mode |= MODE_MOUSE_BUTTON;
635:
636: /*
1.50 nicm 637: * Any mode will do for mouse-select-pane, but set standard mode if
638: * none.
639: */
1.54 nicm 640: if ((mode & ALL_MOUSE_MODES) == 0) {
641: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
1.55 nicm 642: options_get_number(oo, "mouse-select-pane"))
1.57 nicm 643: mode |= MODE_MOUSE_STANDARD;
644: else if (options_get_number(oo, "mouse-resize-pane"))
1.54 nicm 645: mode |= MODE_MOUSE_STANDARD;
646: else if (options_get_number(oo, "mouse-select-window"))
647: mode |= MODE_MOUSE_STANDARD;
648: else if (options_get_number(wo, "mode-mouse"))
649: mode |= MODE_MOUSE_STANDARD;
650: }
1.48 nicm 651:
652: /*
653: * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
654: * user has set mouse-utf8 and any mouse mode is in effect, turn on
655: * UTF-8 mouse input. If the receiving terminal hasn't requested it
656: * (that is, it isn't in s->mode), then it'll be converted in
657: * input_mouse.
658: */
659: if ((c->tty.flags & TTY_UTF8) &&
660: (mode & ALL_MOUSE_MODES) && options_get_number(oo, "mouse-utf8"))
661: mode |= MODE_MOUSE_UTF8;
662: else
663: mode &= ~MODE_MOUSE_UTF8;
664:
665: /* Set the terminal mode and reset attributes. */
1.59 nicm 666: tty_update_mode(&c->tty, mode, s);
1.1 nicm 667: tty_reset(&c->tty);
1.17 nicm 668: }
669:
670: /* Repeat time callback. */
671: void
672: server_client_repeat_timer(unused int fd, unused short events, void *data)
673: {
674: struct client *c = data;
675:
1.85 nicm 676: if (c->flags & CLIENT_REPEAT) {
677: if (c->flags & CLIENT_PREFIX)
678: server_status_client(c);
1.17 nicm 679: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.85 nicm 680: }
1.1 nicm 681: }
682:
1.36 nicm 683: /* Check if client should be exited. */
684: void
685: server_client_check_exit(struct client *c)
686: {
687: struct msg_exit_data exitdata;
688:
689: if (!(c->flags & CLIENT_EXIT))
690: return;
691:
1.73 nicm 692: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
693: return;
694: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 695: return;
1.73 nicm 696: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 697: return;
698:
699: exitdata.retcode = c->retcode;
700: server_write_client(c, MSG_EXIT, &exitdata, sizeof exitdata);
701:
702: c->flags &= ~CLIENT_EXIT;
1.38 nicm 703: }
704:
1.1 nicm 705: /* Check for client redraws. */
706: void
707: server_client_check_redraw(struct client *c)
708: {
709: struct session *s = c->session;
710: struct window_pane *wp;
711: int flags, redraw;
712:
1.86 nicm 713: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79 nicm 714: return;
715:
1.1 nicm 716: flags = c->tty.flags & TTY_FREEZE;
717: c->tty.flags &= ~TTY_FREEZE;
718:
719: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
720: if (options_get_number(&s->options, "set-titles"))
721: server_client_set_title(c);
1.12 nicm 722:
1.1 nicm 723: if (c->message_string != NULL)
724: redraw = status_message_redraw(c);
725: else if (c->prompt_string != NULL)
726: redraw = status_prompt_redraw(c);
727: else
728: redraw = status_redraw(c);
729: if (!redraw)
730: c->flags &= ~CLIENT_STATUS;
731: }
732:
733: if (c->flags & CLIENT_REDRAW) {
1.27 nicm 734: screen_redraw_screen(c, 0, 0);
735: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 736: } else if (c->flags & CLIENT_REDRAWWINDOW) {
737: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
738: screen_redraw_pane(c, wp);
739: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 740: } else {
741: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
742: if (wp->flags & PANE_REDRAW)
743: screen_redraw_pane(c, wp);
744: }
745: }
746:
1.27 nicm 747: if (c->flags & CLIENT_BORDERS)
748: screen_redraw_screen(c, 0, 1);
749:
1.1 nicm 750: if (c->flags & CLIENT_STATUS)
1.27 nicm 751: screen_redraw_screen(c, 1, 0);
1.1 nicm 752:
753: c->tty.flags |= flags;
754:
1.27 nicm 755: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 756: }
757:
758: /* Set client title. */
759: void
760: server_client_set_title(struct client *c)
761: {
762: struct session *s = c->session;
763: const char *template;
764: char *title;
765:
766: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 767:
1.52 nicm 768: title = status_replace(c, NULL, NULL, NULL, template, time(NULL), 1);
1.1 nicm 769: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 nicm 770: free(c->title);
1.1 nicm 771: c->title = xstrdup(title);
772: tty_set_title(&c->tty, c->title);
773: }
1.77 nicm 774: free(title);
1.1 nicm 775: }
776:
777: /* Dispatch message from client. */
778: int
779: server_client_msg_dispatch(struct client *c)
780: {
781: struct imsg imsg;
782: struct msg_command_data commanddata;
783: struct msg_identify_data identifydata;
784: struct msg_environ_data environdata;
1.73 nicm 785: struct msg_stdin_data stdindata;
1.1 nicm 786: ssize_t n, datalen;
787:
1.8 deraadt 788: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
789: return (-1);
1.1 nicm 790:
791: for (;;) {
792: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
793: return (-1);
794: if (n == 0)
795: return (0);
796: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
797:
798: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
799: server_write_client(c, MSG_VERSION, NULL, 0);
800: c->flags |= CLIENT_BAD;
801: imsg_free(&imsg);
802: continue;
803: }
804:
805: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
806: switch (imsg.hdr.type) {
807: case MSG_COMMAND:
808: if (datalen != sizeof commanddata)
809: fatalx("bad MSG_COMMAND size");
810: memcpy(&commanddata, imsg.data, sizeof commanddata);
811:
812: server_client_msg_command(c, &commanddata);
813: break;
814: case MSG_IDENTIFY:
815: if (datalen != sizeof identifydata)
816: fatalx("bad MSG_IDENTIFY size");
817: if (imsg.fd == -1)
818: fatalx("MSG_IDENTIFY missing fd");
819: memcpy(&identifydata, imsg.data, sizeof identifydata);
820:
821: server_client_msg_identify(c, &identifydata, imsg.fd);
822: break;
1.73 nicm 823: case MSG_STDIN:
824: if (datalen != sizeof stdindata)
825: fatalx("bad MSG_STDIN size");
826: memcpy(&stdindata, imsg.data, sizeof stdindata);
1.36 nicm 827:
1.73 nicm 828: if (c->stdin_callback == NULL)
829: break;
830: if (stdindata.size <= 0)
831: c->stdin_closed = 1;
832: else {
833: evbuffer_add(c->stdin_data, stdindata.data,
834: stdindata.size);
835: }
836: c->stdin_callback(c, c->stdin_closed,
837: c->stdin_callback_data);
1.33 nicm 838: break;
1.1 nicm 839: case MSG_RESIZE:
840: if (datalen != 0)
841: fatalx("bad MSG_RESIZE size");
842:
1.86 nicm 843: if (c->flags & CLIENT_CONTROL)
844: break;
1.32 nicm 845: if (tty_resize(&c->tty)) {
846: recalculate_sizes();
847: server_redraw_client(c);
848: }
1.1 nicm 849: break;
850: case MSG_EXITING:
851: if (datalen != 0)
852: fatalx("bad MSG_EXITING size");
853:
854: c->session = NULL;
855: tty_close(&c->tty);
856: server_write_client(c, MSG_EXITED, NULL, 0);
857: break;
858: case MSG_WAKEUP:
859: case MSG_UNLOCK:
860: if (datalen != 0)
861: fatalx("bad MSG_WAKEUP size");
862:
863: if (!(c->flags & CLIENT_SUSPENDED))
864: break;
865: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 866:
1.11 nicm 867: if (gettimeofday(&c->activity_time, NULL) != 0)
868: fatal("gettimeofday");
1.47 nicm 869: if (c->session != NULL)
870: session_update_activity(c->session);
1.10 nicm 871:
1.1 nicm 872: tty_start_tty(&c->tty);
873: server_redraw_client(c);
874: recalculate_sizes();
875: break;
876: case MSG_ENVIRON:
877: if (datalen != sizeof environdata)
878: fatalx("bad MSG_ENVIRON size");
879: memcpy(&environdata, imsg.data, sizeof environdata);
880:
881: environdata.var[(sizeof environdata.var) - 1] = '\0';
882: if (strchr(environdata.var, '=') != NULL)
883: environ_put(&c->environ, environdata.var);
884: break;
885: case MSG_SHELL:
886: if (datalen != 0)
887: fatalx("bad MSG_SHELL size");
888:
889: server_client_msg_shell(c);
890: break;
891: default:
892: fatalx("unexpected message");
893: }
894:
895: imsg_free(&imsg);
896: }
897: }
898:
899: /* Handle command message. */
900: void
901: server_client_msg_command(struct client *c, struct msg_command_data *data)
902: {
1.36 nicm 903: struct cmd_list *cmdlist = NULL;
904: int argc;
905: char **argv, *cause;
1.1 nicm 906:
907: argc = data->argc;
908: data->argv[(sizeof data->argv) - 1] = '\0';
909: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
1.94 nicm 910: cmdq_error(c->cmdq, "command too long");
1.1 nicm 911: goto error;
912: }
913:
914: if (argc == 0) {
915: argc = 1;
916: argv = xcalloc(1, sizeof *argv);
917: *argv = xstrdup("new-session");
918: }
919:
1.94 nicm 920: if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) {
921: cmdq_error(c->cmdq, "%s", cause);
1.1 nicm 922: cmd_free_argv(argc, argv);
923: goto error;
924: }
925: cmd_free_argv(argc, argv);
926:
1.94 nicm 927: cmdq_run(c->cmdq, cmdlist);
1.1 nicm 928: cmd_list_free(cmdlist);
929: return;
930:
931: error:
932: if (cmdlist != NULL)
933: cmd_list_free(cmdlist);
1.88 nicm 934:
1.36 nicm 935: c->flags |= CLIENT_EXIT;
1.1 nicm 936: }
937:
938: /* Handle identify message. */
939: void
940: server_client_msg_identify(
941: struct client *c, struct msg_identify_data *data, int fd)
942: {
943: c->cwd = NULL;
944: data->cwd[(sizeof data->cwd) - 1] = '\0';
945: if (*data->cwd != '\0')
946: c->cwd = xstrdup(data->cwd);
1.75 nicm 947:
948: if (data->flags & IDENTIFY_CONTROL) {
949: c->stdin_callback = control_callback;
1.97 nicm 950: evbuffer_free(c->stderr_data);
951: c->stderr_data = c->stdout_data;
1.86 nicm 952: c->flags |= CLIENT_CONTROL;
1.96 nicm 953: if (data->flags & IDENTIFY_TERMIOS)
954: evbuffer_add_printf(c->stdout_data, "\033P1000p");
1.79 nicm 955: server_write_client(c, MSG_STDIN, NULL, 0);
1.75 nicm 956:
957: c->tty.fd = -1;
958: c->tty.log_fd = -1;
959:
960: close(fd);
961: return;
962: }
1.1 nicm 963:
1.80 nicm 964: if (!isatty(fd)) {
965: close(fd);
966: return;
967: }
1.1 nicm 968: data->term[(sizeof data->term) - 1] = '\0';
1.74 nicm 969: tty_init(&c->tty, c, fd, data->term);
1.1 nicm 970: if (data->flags & IDENTIFY_UTF8)
971: c->tty.flags |= TTY_UTF8;
972: if (data->flags & IDENTIFY_256COLOURS)
973: c->tty.term_flags |= TERM_256COLOURS;
974:
975: tty_resize(&c->tty);
976:
1.86 nicm 977: if (!(data->flags & IDENTIFY_CONTROL))
978: c->flags |= CLIENT_TERMINAL;
1.1 nicm 979: }
980:
981: /* Handle shell message. */
982: void
983: server_client_msg_shell(struct client *c)
984: {
985: struct msg_shell_data data;
986: const char *shell;
1.25 nicm 987:
1.1 nicm 988: shell = options_get_string(&global_s_options, "default-shell");
989:
990: if (*shell == '\0' || areshell(shell))
991: shell = _PATH_BSHELL;
992: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
993: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
1.25 nicm 994:
1.1 nicm 995: server_write_client(c, MSG_SHELL, &data, sizeof data);
996: c->flags |= CLIENT_BAD; /* it will die after exec */
997: }
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