Annotation of src/usr.bin/tmux/server-client.c, Revision 1.111
1.111 ! nicm 1: /* $OpenBSD: server-client.c,v 1.110 2013/10/10 12:27:38 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 *);
1.108 nicm 43: void server_client_msg_command(struct client *, struct imsg *);
1.109 nicm 44: void server_client_msg_identify(struct client *, struct imsg *);
1.1 nicm 45: void server_client_msg_shell(struct client *);
46:
47: /* Create a new client. */
48: void
49: server_client_create(int fd)
50: {
51: struct client *c;
52: u_int i;
53:
1.49 nicm 54: setblocking(fd, 0);
1.1 nicm 55:
56: c = xcalloc(1, sizeof *c);
57: c->references = 0;
58: imsg_init(&c->ibuf, fd);
1.14 nicm 59: server_update_event(c);
1.25 nicm 60:
1.10 nicm 61: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 62: fatal("gettimeofday failed");
1.11 nicm 63: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.111 ! nicm 64:
! 65: environ_init(&c->environ);
1.1 nicm 66:
1.94 nicm 67: c->cmdq = cmdq_new(c);
68: c->cmdq->client_exit = 1;
69:
1.73 nicm 70: c->stdin_data = evbuffer_new ();
71: c->stdout_data = evbuffer_new ();
72: c->stderr_data = evbuffer_new ();
1.33 nicm 73:
1.1 nicm 74: c->tty.fd = -1;
75: c->title = NULL;
76:
77: c->session = NULL;
1.45 nicm 78: c->last_session = NULL;
1.1 nicm 79: c->tty.sx = 80;
80: c->tty.sy = 24;
81:
82: screen_init(&c->status, c->tty.sx, 1, 0);
1.51 nicm 83: RB_INIT(&c->status_new);
84: RB_INIT(&c->status_old);
1.1 nicm 85:
86: c->message_string = NULL;
1.21 nicm 87: ARRAY_INIT(&c->message_log);
1.1 nicm 88:
89: c->prompt_string = NULL;
90: c->prompt_buffer = NULL;
91: c->prompt_index = 0;
92:
1.81 nicm 93: c->tty.mouse.xb = c->tty.mouse.button = 3;
94: c->tty.mouse.x = c->tty.mouse.y = -1;
95: c->tty.mouse.lx = c->tty.mouse.ly = -1;
96: c->tty.mouse.sx = c->tty.mouse.sy = -1;
97: c->tty.mouse.event = MOUSE_EVENT_UP;
98: c->tty.mouse.flags = 0;
1.57 nicm 99:
1.93 nicm 100: c->flags |= CLIENT_FOCUSED;
101:
1.17 nicm 102: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
103:
1.1 nicm 104: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
105: if (ARRAY_ITEM(&clients, i) == NULL) {
106: ARRAY_SET(&clients, i, c);
107: return;
108: }
109: }
110: ARRAY_ADD(&clients, c);
111: log_debug("new client %d", fd);
1.72 nicm 112: }
113:
114: /* Open client terminal if needed. */
115: int
116: server_client_open(struct client *c, struct session *s, char **cause)
117: {
118: struct options *oo = s != NULL ? &s->options : &global_s_options;
119: char *overrides;
120:
1.75 nicm 121: if (c->flags & CLIENT_CONTROL)
122: return (0);
123:
1.72 nicm 124: if (!(c->flags & CLIENT_TERMINAL)) {
125: *cause = xstrdup ("not a terminal");
126: return (-1);
127: }
128:
129: overrides = options_get_string(oo, "terminal-overrides");
130: if (tty_open(&c->tty, overrides, cause) != 0)
131: return (-1);
132:
133: return (0);
1.1 nicm 134: }
135:
136: /* Lost a client. */
137: void
138: server_client_lost(struct client *c)
139: {
1.21 nicm 140: struct message_entry *msg;
141: u_int i;
1.1 nicm 142:
143: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
144: if (ARRAY_ITEM(&clients, i) == c)
145: ARRAY_SET(&clients, i, NULL);
146: }
147: log_debug("lost client %d", c->ibuf.fd);
148:
149: /*
150: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
151: * and tty_free might close an unrelated fd.
152: */
153: if (c->flags & CLIENT_TERMINAL)
154: tty_free(&c->tty);
1.109 nicm 155: free(c->ttyname);
156: free(c->term);
1.1 nicm 157:
1.73 nicm 158: evbuffer_free (c->stdin_data);
159: evbuffer_free (c->stdout_data);
1.97 nicm 160: if (c->stderr_data != c->stdout_data)
161: evbuffer_free (c->stderr_data);
1.33 nicm 162:
1.51 nicm 163: status_free_jobs(&c->status_new);
164: status_free_jobs(&c->status_old);
1.1 nicm 165: screen_free(&c->status);
166:
1.77 nicm 167: free(c->title);
1.109 nicm 168: close(c->cwd);
1.1 nicm 169:
1.17 nicm 170: evtimer_del(&c->repeat_timer);
171:
1.69 nicm 172: if (event_initialized(&c->identify_timer))
173: evtimer_del(&c->identify_timer);
1.15 nicm 174:
1.77 nicm 175: free(c->message_string);
1.69 nicm 176: if (event_initialized (&c->message_timer))
177: evtimer_del(&c->message_timer);
1.21 nicm 178: for (i = 0; i < ARRAY_LENGTH(&c->message_log); i++) {
179: msg = &ARRAY_ITEM(&c->message_log, i);
1.77 nicm 180: free(msg->msg);
1.21 nicm 181: }
182: ARRAY_FREE(&c->message_log);
1.1 nicm 183:
1.77 nicm 184: free(c->prompt_string);
185: free(c->prompt_buffer);
1.61 nicm 186:
1.94 nicm 187: c->cmdq->dead = 1;
188: cmdq_free(c->cmdq);
189: c->cmdq = NULL;
190:
1.61 nicm 191: environ_free(&c->environ);
1.1 nicm 192:
193: close(c->ibuf.fd);
194: imsg_clear(&c->ibuf);
1.69 nicm 195: if (event_initialized(&c->event))
196: event_del(&c->event);
1.13 nicm 197:
1.1 nicm 198: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
199: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
200: ARRAY_SET(&dead_clients, i, c);
201: break;
202: }
203: }
204: if (i == ARRAY_LENGTH(&dead_clients))
205: ARRAY_ADD(&dead_clients, c);
206: c->flags |= CLIENT_DEAD;
1.71 nicm 207:
208: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 209:
210: recalculate_sizes();
1.41 nicm 211: server_check_unattached();
1.19 nicm 212: server_update_socket();
1.9 nicm 213: }
214:
1.1 nicm 215: /* Process a single client event. */
216: void
1.12 nicm 217: server_client_callback(int fd, short events, void *data)
1.1 nicm 218: {
219: struct client *c = data;
1.7 nicm 220:
221: if (c->flags & CLIENT_DEAD)
222: return;
1.1 nicm 223:
224: if (fd == c->ibuf.fd) {
1.12 nicm 225: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 226: goto client_lost;
227:
228: if (c->flags & CLIENT_BAD) {
229: if (c->ibuf.w.queued == 0)
230: goto client_lost;
231: return;
232: }
233:
1.12 nicm 234: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 235: goto client_lost;
236: }
1.14 nicm 237:
1.73 nicm 238: server_push_stdout(c);
239: server_push_stderr(c);
240:
1.25 nicm 241: server_update_event(c);
1.1 nicm 242: return;
243:
244: client_lost:
245: server_client_lost(c);
246: }
247:
1.16 nicm 248: /* Handle client status timer. */
249: void
250: server_client_status_timer(void)
251: {
252: struct client *c;
253: struct session *s;
254: struct timeval tv;
1.20 nicm 255: u_int i;
256: int interval;
257: time_t difference;
1.16 nicm 258:
259: if (gettimeofday(&tv, NULL) != 0)
260: fatal("gettimeofday failed");
261:
262: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
263: c = ARRAY_ITEM(&clients, i);
264: if (c == NULL || c->session == NULL)
265: continue;
266: if (c->message_string != NULL || c->prompt_string != NULL) {
267: /*
268: * Don't need timed redraw for messages/prompts so bail
269: * now. The status timer isn't reset when they are
270: * redrawn anyway.
271: */
272: continue;
273: }
274: s = c->session;
275:
276: if (!options_get_number(&s->options, "status"))
277: continue;
278: interval = options_get_number(&s->options, "status-interval");
279:
1.20 nicm 280: difference = tv.tv_sec - c->status_timer.tv_sec;
281: if (difference >= interval) {
1.51 nicm 282: status_update_jobs(c);
1.16 nicm 283: c->flags |= CLIENT_STATUS;
284: }
285: }
286: }
287:
1.66 nicm 288: /* Check for mouse keys. */
289: void
1.81 nicm 290: server_client_check_mouse(struct client *c, struct window_pane *wp)
1.66 nicm 291: {
1.81 nicm 292: struct session *s = c->session;
293: struct options *oo = &s->options;
294: struct mouse_event *m = &c->tty.mouse;
295: int statusat;
1.66 nicm 296:
297: statusat = status_at_line(c);
298:
299: /* Is this a window selection click on the status line? */
1.81 nicm 300: if (statusat != -1 && m->y == (u_int)statusat &&
1.66 nicm 301: options_get_number(oo, "mouse-select-window")) {
1.81 nicm 302: if (m->event & MOUSE_EVENT_CLICK) {
303: status_set_window_at(c, m->x);
304: } else if (m->event == MOUSE_EVENT_WHEEL) {
305: if (m->wheel == MOUSE_WHEEL_UP)
1.66 nicm 306: session_previous(c->session, 0);
1.81 nicm 307: else if (m->wheel == MOUSE_WHEEL_DOWN)
1.66 nicm 308: session_next(c->session, 0);
1.81 nicm 309: server_redraw_session(s);
1.66 nicm 310: }
1.81 nicm 311: recalculate_sizes();
1.67 nicm 312: return;
1.66 nicm 313: }
314:
315: /*
316: * Not on status line - adjust mouse position if status line is at the
317: * top and limit if at the bottom. From here on a struct mouse
318: * represents the offset onto the window itself.
319: */
1.81 nicm 320: if (statusat == 0 && m->y > 0)
321: m->y--;
322: else if (statusat > 0 && m->y >= (u_int)statusat)
323: m->y = statusat - 1;
1.66 nicm 324:
325: /* Is this a pane selection? Allow down only in copy mode. */
326: if (options_get_number(oo, "mouse-select-pane") &&
1.81 nicm 327: (m->event == MOUSE_EVENT_DOWN || wp->mode != &window_copy_mode)) {
328: window_set_active_at(wp->window, m->x, m->y);
1.66 nicm 329: server_redraw_window_borders(wp->window);
330: wp = wp->window->active; /* may have changed */
331: }
332:
333: /* Check if trying to resize pane. */
334: if (options_get_number(oo, "mouse-resize-pane"))
1.81 nicm 335: layout_resize_pane_mouse(c);
1.66 nicm 336:
337: /* Update last and pass through to client. */
1.81 nicm 338: window_pane_mouse(wp, c->session, m);
1.66 nicm 339: }
340:
1.82 nicm 341: /* Is this fast enough to probably be a paste? */
342: int
343: server_client_assume_paste(struct session *s)
344: {
345: struct timeval tv;
1.84 nicm 346: int t;
1.82 nicm 347:
348: if ((t = options_get_number(&s->options, "assume-paste-time")) == 0)
1.83 nicm 349: return (0);
1.82 nicm 350:
351: timersub(&s->activity_time, &s->last_activity_time, &tv);
352: if (tv.tv_sec == 0 && tv.tv_usec < t * 1000)
1.83 nicm 353: return (1);
354: return (0);
1.82 nicm 355: }
356:
1.18 nicm 357: /* Handle data key input from client. */
358: void
1.74 nicm 359: server_client_handle_key(struct client *c, int key)
1.18 nicm 360: {
361: struct session *s;
362: struct window *w;
363: struct window_pane *wp;
364: struct timeval tv;
365: struct key_binding *bd;
1.82 nicm 366: int xtimeout, isprefix, ispaste;
1.18 nicm 367:
368: /* Check the client is good to accept input. */
369: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
370: return;
1.86 nicm 371:
1.18 nicm 372: if (c->session == NULL)
373: return;
374: s = c->session;
375:
376: /* Update the activity timer. */
377: if (gettimeofday(&c->activity_time, NULL) != 0)
378: fatal("gettimeofday failed");
1.82 nicm 379:
380: memcpy(&s->last_activity_time, &s->activity_time,
381: sizeof s->last_activity_time);
1.18 nicm 382: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
383:
384: w = c->session->curw->window;
385: wp = w->active;
386:
387: /* Special case: number keys jump to pane in identify mode. */
1.25 nicm 388: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 389: if (c->flags & CLIENT_READONLY)
390: return;
1.95 nicm 391: window_unzoom(w);
1.18 nicm 392: wp = window_pane_at_index(w, key - '0');
393: if (wp != NULL && window_pane_visible(wp))
394: window_set_active_pane(w, wp);
395: server_clear_identify(c);
396: return;
397: }
398:
399: /* Handle status line. */
1.30 nicm 400: if (!(c->flags & CLIENT_READONLY)) {
401: status_message_clear(c);
402: server_clear_identify(c);
403: }
1.18 nicm 404: if (c->prompt_string != NULL) {
1.30 nicm 405: if (!(c->flags & CLIENT_READONLY))
406: status_prompt_key(c, key);
1.18 nicm 407: return;
408: }
409:
410: /* Check for mouse keys. */
411: if (key == KEYC_MOUSE) {
1.30 nicm 412: if (c->flags & CLIENT_READONLY)
413: return;
1.81 nicm 414: server_client_check_mouse(c, wp);
1.18 nicm 415: return;
416: }
417:
418: /* Is this a prefix key? */
1.82 nicm 419: if (key == options_get_number(&s->options, "prefix"))
1.63 nicm 420: isprefix = 1;
1.82 nicm 421: else if (key == options_get_number(&s->options, "prefix2"))
1.63 nicm 422: isprefix = 1;
423: else
424: isprefix = 0;
1.18 nicm 425:
1.82 nicm 426: /* Treat prefix as a regular key when pasting is detected. */
427: ispaste = server_client_assume_paste(s);
428: if (ispaste)
429: isprefix = 0;
430:
1.18 nicm 431: /* No previous prefix key. */
432: if (!(c->flags & CLIENT_PREFIX)) {
1.82 nicm 433: if (isprefix) {
1.18 nicm 434: c->flags |= CLIENT_PREFIX;
1.85 nicm 435: server_status_client(c);
1.82 nicm 436: return;
1.18 nicm 437: }
1.82 nicm 438:
439: /* Try as a non-prefix key binding. */
440: if (ispaste || (bd = key_bindings_lookup(key)) == NULL) {
441: if (!(c->flags & CLIENT_READONLY))
442: window_pane_key(wp, s, key);
443: } else
444: key_bindings_dispatch(bd, c);
1.18 nicm 445: return;
446: }
447:
448: /* Prefix key already pressed. Reset prefix and lookup key. */
449: c->flags &= ~CLIENT_PREFIX;
1.85 nicm 450: server_status_client(c);
1.18 nicm 451: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
452: /* If repeating, treat this as a key, else ignore. */
453: if (c->flags & CLIENT_REPEAT) {
454: c->flags &= ~CLIENT_REPEAT;
455: if (isprefix)
456: c->flags |= CLIENT_PREFIX;
1.30 nicm 457: else if (!(c->flags & CLIENT_READONLY))
1.82 nicm 458: window_pane_key(wp, s, key);
1.18 nicm 459: }
460: return;
461: }
462:
463: /* If already repeating, but this key can't repeat, skip it. */
464: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
465: c->flags &= ~CLIENT_REPEAT;
466: if (isprefix)
467: c->flags |= CLIENT_PREFIX;
1.30 nicm 468: else if (!(c->flags & CLIENT_READONLY))
1.82 nicm 469: window_pane_key(wp, s, key);
1.18 nicm 470: return;
471: }
472:
473: /* If this key can repeat, reset the repeat flags and timer. */
1.82 nicm 474: xtimeout = options_get_number(&s->options, "repeat-time");
1.18 nicm 475: if (xtimeout != 0 && bd->can_repeat) {
476: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 477:
1.18 nicm 478: tv.tv_sec = xtimeout / 1000;
479: tv.tv_usec = (xtimeout % 1000) * 1000L;
480: evtimer_del(&c->repeat_timer);
481: evtimer_add(&c->repeat_timer, &tv);
482: }
483:
484: /* Dispatch the command. */
485: key_bindings_dispatch(bd, c);
486: }
487:
1.2 nicm 488: /* Client functions that need to happen every loop. */
489: void
490: server_client_loop(void)
491: {
492: struct client *c;
493: struct window *w;
494: struct window_pane *wp;
495: u_int i;
496:
497: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
498: c = ARRAY_ITEM(&clients, i);
1.36 nicm 499: if (c == NULL)
1.2 nicm 500: continue;
501:
1.36 nicm 502: server_client_check_exit(c);
503: if (c->session != NULL) {
504: server_client_check_redraw(c);
505: server_client_reset_state(c);
506: }
1.2 nicm 507: }
508:
509: /*
510: * Any windows will have been redrawn as part of clients, so clear
1.92 nicm 511: * their flags now. Also check pane focus and resize.
1.2 nicm 512: */
513: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
514: w = ARRAY_ITEM(&windows, i);
515: if (w == NULL)
516: continue;
517:
518: w->flags &= ~WINDOW_REDRAW;
1.91 nicm 519: TAILQ_FOREACH(wp, &w->panes, entry) {
1.101 nicm 520: if (wp->fd != -1) {
521: server_client_check_focus(wp);
522: server_client_check_resize(wp);
523: }
1.2 nicm 524: wp->flags &= ~PANE_REDRAW;
1.91 nicm 525: }
1.2 nicm 526: }
1.92 nicm 527: }
528:
529: /* Check if pane should be resized. */
530: void
531: server_client_check_resize(struct window_pane *wp)
532: {
533: struct winsize ws;
534:
1.101 nicm 535: if (!(wp->flags & PANE_RESIZE))
1.92 nicm 536: return;
537:
538: memset(&ws, 0, sizeof ws);
539: ws.ws_col = wp->sx;
540: ws.ws_row = wp->sy;
541:
1.100 nicm 542: if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
1.92 nicm 543: fatal("ioctl failed");
544:
545: wp->flags &= ~PANE_RESIZE;
1.91 nicm 546: }
547:
548: /* Check whether pane should be focused. */
549: void
550: server_client_check_focus(struct window_pane *wp)
551: {
1.93 nicm 552: u_int i;
553: struct client *c;
1.102 nicm 554: int push;
1.103 nicm 555:
556: /* Are focus events off? */
557: if (!options_get_number(&global_options, "focus-events"))
558: return;
1.102 nicm 559:
560: /* Do we need to push the focus state? */
561: push = wp->flags & PANE_FOCUSPUSH;
562: wp->flags &= ~PANE_FOCUSPUSH;
1.91 nicm 563:
564: /* If we don't care about focus, forget it. */
565: if (!(wp->base.mode & MODE_FOCUSON))
566: return;
567:
568: /* If we're not the active pane in our window, we're not focused. */
569: if (wp->window->active != wp)
570: goto not_focused;
571:
572: /* If we're in a mode, we're not focused. */
573: if (wp->screen != &wp->base)
574: goto not_focused;
575:
576: /*
1.93 nicm 577: * If our window is the current window in any focused clients with an
578: * attached session, we're focused.
1.91 nicm 579: */
1.93 nicm 580: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
581: c = ARRAY_ITEM(&clients, i);
582: if (c == NULL || c->session == NULL)
583: continue;
584:
585: if (!(c->flags & CLIENT_FOCUSED))
1.91 nicm 586: continue;
1.93 nicm 587: if (c->session->flags & SESSION_UNATTACHED)
588: continue;
589:
590: if (c->session->curw->window == wp->window)
1.91 nicm 591: goto focused;
592: }
593:
594: not_focused:
1.102 nicm 595: if (push || (wp->flags & PANE_FOCUSED))
1.91 nicm 596: bufferevent_write(wp->event, "\033[O", 3);
597: wp->flags &= ~PANE_FOCUSED;
598: return;
599:
600: focused:
1.102 nicm 601: if (push || !(wp->flags & PANE_FOCUSED))
1.91 nicm 602: bufferevent_write(wp->event, "\033[I", 3);
603: wp->flags |= PANE_FOCUSED;
1.2 nicm 604: }
605:
1.18 nicm 606: /*
607: * Update cursor position and mode settings. The scroll region and attributes
608: * are cleared when idle (waiting for an event) as this is the most likely time
609: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
610: * compromise between excessive resets and likelihood of an interrupt.
611: *
612: * tty_region/tty_reset/tty_update_mode already take care of not resetting
613: * things that are already in their default state.
614: */
1.1 nicm 615: void
1.18 nicm 616: server_client_reset_state(struct client *c)
1.1 nicm 617: {
1.18 nicm 618: struct window *w = c->session->curw->window;
619: struct window_pane *wp = w->active;
620: struct screen *s = wp->screen;
621: struct options *oo = &c->session->options;
1.54 nicm 622: struct options *wo = &w->options;
1.66 nicm 623: int status, mode, o;
1.60 nicm 624:
625: if (c->flags & CLIENT_SUSPENDED)
626: return;
1.1 nicm 627:
1.86 nicm 628: if (c->flags & CLIENT_CONTROL)
629: return;
630:
1.1 nicm 631: tty_region(&c->tty, 0, c->tty.sy - 1);
632:
633: status = options_get_number(oo, "status");
634: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
635: tty_cursor(&c->tty, 0, 0);
1.66 nicm 636: else {
637: o = status && options_get_number (oo, "status-position") == 0;
638: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
639: }
1.1 nicm 640:
1.50 nicm 641: /*
1.57 nicm 642: * Resizing panes with the mouse requires at least button mode to give
643: * a smooth appearance.
644: */
645: mode = s->mode;
1.81 nicm 646: if ((c->tty.mouse.flags & MOUSE_RESIZE_PANE) &&
1.57 nicm 647: !(mode & (MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)))
648: mode |= MODE_MOUSE_BUTTON;
649:
650: /*
1.50 nicm 651: * Any mode will do for mouse-select-pane, but set standard mode if
652: * none.
653: */
1.54 nicm 654: if ((mode & ALL_MOUSE_MODES) == 0) {
655: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
1.55 nicm 656: options_get_number(oo, "mouse-select-pane"))
1.57 nicm 657: mode |= MODE_MOUSE_STANDARD;
658: else if (options_get_number(oo, "mouse-resize-pane"))
1.54 nicm 659: mode |= MODE_MOUSE_STANDARD;
660: else if (options_get_number(oo, "mouse-select-window"))
661: mode |= MODE_MOUSE_STANDARD;
662: else if (options_get_number(wo, "mode-mouse"))
663: mode |= MODE_MOUSE_STANDARD;
664: }
1.48 nicm 665:
666: /*
667: * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
668: * user has set mouse-utf8 and any mouse mode is in effect, turn on
669: * UTF-8 mouse input. If the receiving terminal hasn't requested it
670: * (that is, it isn't in s->mode), then it'll be converted in
671: * input_mouse.
672: */
673: if ((c->tty.flags & TTY_UTF8) &&
674: (mode & ALL_MOUSE_MODES) && options_get_number(oo, "mouse-utf8"))
675: mode |= MODE_MOUSE_UTF8;
676: else
677: mode &= ~MODE_MOUSE_UTF8;
678:
679: /* Set the terminal mode and reset attributes. */
1.59 nicm 680: tty_update_mode(&c->tty, mode, s);
1.1 nicm 681: tty_reset(&c->tty);
1.17 nicm 682: }
683:
684: /* Repeat time callback. */
685: void
686: server_client_repeat_timer(unused int fd, unused short events, void *data)
687: {
688: struct client *c = data;
689:
1.85 nicm 690: if (c->flags & CLIENT_REPEAT) {
691: if (c->flags & CLIENT_PREFIX)
692: server_status_client(c);
1.17 nicm 693: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.85 nicm 694: }
1.1 nicm 695: }
696:
1.36 nicm 697: /* Check if client should be exited. */
698: void
699: server_client_check_exit(struct client *c)
700: {
701: if (!(c->flags & CLIENT_EXIT))
702: return;
703:
1.73 nicm 704: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
705: return;
706: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 707: return;
1.73 nicm 708: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 709: return;
710:
1.107 nicm 711: server_write_client(c, MSG_EXIT, &c->retval, sizeof c->retval);
1.36 nicm 712: c->flags &= ~CLIENT_EXIT;
1.38 nicm 713: }
714:
1.1 nicm 715: /* Check for client redraws. */
716: void
717: server_client_check_redraw(struct client *c)
718: {
719: struct session *s = c->session;
720: struct window_pane *wp;
721: int flags, redraw;
722:
1.86 nicm 723: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79 nicm 724: return;
725:
1.1 nicm 726: flags = c->tty.flags & TTY_FREEZE;
727: c->tty.flags &= ~TTY_FREEZE;
728:
729: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
730: if (options_get_number(&s->options, "set-titles"))
731: server_client_set_title(c);
1.12 nicm 732:
1.1 nicm 733: if (c->message_string != NULL)
734: redraw = status_message_redraw(c);
735: else if (c->prompt_string != NULL)
736: redraw = status_prompt_redraw(c);
737: else
738: redraw = status_redraw(c);
739: if (!redraw)
740: c->flags &= ~CLIENT_STATUS;
741: }
742:
743: if (c->flags & CLIENT_REDRAW) {
1.27 nicm 744: screen_redraw_screen(c, 0, 0);
745: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 746: } else if (c->flags & CLIENT_REDRAWWINDOW) {
747: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
748: screen_redraw_pane(c, wp);
749: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 750: } else {
751: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
752: if (wp->flags & PANE_REDRAW)
753: screen_redraw_pane(c, wp);
754: }
755: }
756:
1.27 nicm 757: if (c->flags & CLIENT_BORDERS)
758: screen_redraw_screen(c, 0, 1);
759:
1.1 nicm 760: if (c->flags & CLIENT_STATUS)
1.27 nicm 761: screen_redraw_screen(c, 1, 0);
1.1 nicm 762:
763: c->tty.flags |= flags;
764:
1.27 nicm 765: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 766: }
767:
768: /* Set client title. */
769: void
770: server_client_set_title(struct client *c)
771: {
772: struct session *s = c->session;
773: const char *template;
774: char *title;
775:
776: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 777:
1.52 nicm 778: title = status_replace(c, NULL, NULL, NULL, template, time(NULL), 1);
1.1 nicm 779: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 nicm 780: free(c->title);
1.1 nicm 781: c->title = xstrdup(title);
782: tty_set_title(&c->tty, c->title);
783: }
1.77 nicm 784: free(title);
1.1 nicm 785: }
786:
787: /* Dispatch message from client. */
788: int
789: server_client_msg_dispatch(struct client *c)
790: {
791: struct imsg imsg;
1.73 nicm 792: struct msg_stdin_data stdindata;
1.108 nicm 793: const char *data;
1.1 nicm 794: ssize_t n, datalen;
795:
1.8 deraadt 796: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
797: return (-1);
1.1 nicm 798:
799: for (;;) {
800: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
801: return (-1);
802: if (n == 0)
803: return (0);
1.108 nicm 804:
805: data = imsg.data;
1.1 nicm 806: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
807:
808: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
809: server_write_client(c, MSG_VERSION, NULL, 0);
810: c->flags |= CLIENT_BAD;
811: imsg_free(&imsg);
812: continue;
813: }
814:
815: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
816: switch (imsg.hdr.type) {
1.109 nicm 817: case MSG_IDENTIFY_FLAGS:
818: case MSG_IDENTIFY_TERM:
819: case MSG_IDENTIFY_TTYNAME:
820: case MSG_IDENTIFY_CWD:
821: case MSG_IDENTIFY_STDIN:
822: case MSG_IDENTIFY_ENVIRON:
823: case MSG_IDENTIFY_DONE:
824: server_client_msg_identify(c, &imsg);
1.1 nicm 825: break;
1.108 nicm 826: case MSG_COMMAND:
827: server_client_msg_command(c, &imsg);
828: break;
1.73 nicm 829: case MSG_STDIN:
830: if (datalen != sizeof stdindata)
831: fatalx("bad MSG_STDIN size");
1.108 nicm 832: memcpy(&stdindata, data, sizeof stdindata);
1.36 nicm 833:
1.73 nicm 834: if (c->stdin_callback == NULL)
835: break;
836: if (stdindata.size <= 0)
837: c->stdin_closed = 1;
838: else {
839: evbuffer_add(c->stdin_data, stdindata.data,
840: stdindata.size);
841: }
842: c->stdin_callback(c, c->stdin_closed,
843: c->stdin_callback_data);
1.33 nicm 844: break;
1.1 nicm 845: case MSG_RESIZE:
846: if (datalen != 0)
847: fatalx("bad MSG_RESIZE size");
848:
1.86 nicm 849: if (c->flags & CLIENT_CONTROL)
850: break;
1.32 nicm 851: if (tty_resize(&c->tty)) {
852: recalculate_sizes();
853: server_redraw_client(c);
854: }
1.1 nicm 855: break;
856: case MSG_EXITING:
857: if (datalen != 0)
858: fatalx("bad MSG_EXITING size");
859:
860: c->session = NULL;
861: tty_close(&c->tty);
862: server_write_client(c, MSG_EXITED, NULL, 0);
863: break;
864: case MSG_WAKEUP:
865: case MSG_UNLOCK:
866: if (datalen != 0)
867: fatalx("bad MSG_WAKEUP size");
868:
869: if (!(c->flags & CLIENT_SUSPENDED))
870: break;
871: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 872:
1.11 nicm 873: if (gettimeofday(&c->activity_time, NULL) != 0)
874: fatal("gettimeofday");
1.47 nicm 875: if (c->session != NULL)
876: session_update_activity(c->session);
1.10 nicm 877:
1.1 nicm 878: tty_start_tty(&c->tty);
879: server_redraw_client(c);
880: recalculate_sizes();
881: break;
882: case MSG_SHELL:
883: if (datalen != 0)
884: fatalx("bad MSG_SHELL size");
885:
886: server_client_msg_shell(c);
887: break;
888: }
889:
890: imsg_free(&imsg);
891: }
892: }
893:
894: /* Handle command message. */
895: void
1.108 nicm 896: server_client_msg_command(struct client *c, struct imsg *imsg)
1.1 nicm 897: {
1.108 nicm 898: struct msg_command_data data;
899: char *buf;
900: size_t len;
901: struct cmd_list *cmdlist = NULL;
902: int argc;
903: char **argv, *cause;
904:
905: if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data)
906: fatalx("bad MSG_COMMAND size");
907: memcpy(&data, imsg->data, sizeof data);
908:
909: buf = (char*)imsg->data + sizeof data;
910: len = imsg->hdr.len - IMSG_HEADER_SIZE - sizeof data;
911: if (len > 0 && buf[len - 1] != '\0')
912: fatalx("bad MSG_COMMAND string");
913:
914: argc = data.argc;
915: if (cmd_unpack_argv(buf, len, argc, &argv) != 0) {
1.94 nicm 916: cmdq_error(c->cmdq, "command too long");
1.1 nicm 917: goto error;
918: }
919:
920: if (argc == 0) {
921: argc = 1;
922: argv = xcalloc(1, sizeof *argv);
923: *argv = xstrdup("new-session");
924: }
925:
1.94 nicm 926: if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) {
927: cmdq_error(c->cmdq, "%s", cause);
1.1 nicm 928: cmd_free_argv(argc, argv);
929: goto error;
930: }
931: cmd_free_argv(argc, argv);
932:
1.94 nicm 933: cmdq_run(c->cmdq, cmdlist);
1.1 nicm 934: cmd_list_free(cmdlist);
935: return;
936:
937: error:
938: if (cmdlist != NULL)
939: cmd_list_free(cmdlist);
1.88 nicm 940:
1.36 nicm 941: c->flags |= CLIENT_EXIT;
1.1 nicm 942: }
943:
944: /* Handle identify message. */
945: void
1.109 nicm 946: server_client_msg_identify(struct client *c, struct imsg *imsg)
1.1 nicm 947: {
1.109 nicm 948: const char *data;
949: size_t datalen;
950: int flags;
951:
952: if (c->flags & CLIENT_IDENTIFIED)
953: fatalx("out-of-order identify message");
954:
955: data = imsg->data;
956: datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
957:
958: switch (imsg->hdr.type) {
959: case MSG_IDENTIFY_FLAGS:
960: if (datalen != sizeof flags)
961: fatalx("bad MSG_IDENTIFY_FLAGS size");
962: memcpy(&flags, data, sizeof flags);
963: c->flags |= flags;
964: break;
965: case MSG_IDENTIFY_TERM:
1.110 nicm 966: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 967: fatalx("bad MSG_IDENTIFY_TERM string");
968: c->term = xstrdup(data);
969: break;
970: case MSG_IDENTIFY_TTYNAME:
1.110 nicm 971: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 972: fatalx("bad MSG_IDENTIFY_TTYNAME string");
973: c->ttyname = xstrdup(data);
974: break;
975: case MSG_IDENTIFY_CWD:
976: if (datalen != 0)
977: fatalx("bad MSG_IDENTIFY_CWD size");
978: c->cwd = imsg->fd;
979: break;
980: case MSG_IDENTIFY_STDIN:
981: if (datalen != 0)
982: fatalx("bad MSG_IDENTIFY_STDIN size");
983: c->fd = imsg->fd;
984: break;
985: case MSG_IDENTIFY_ENVIRON:
1.110 nicm 986: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 987: fatalx("bad MSG_IDENTIFY_ENVIRON string");
988: if (strchr(data, '=') != NULL)
989: environ_put(&c->environ, data);
990: break;
991: default:
992: break;
993: }
994:
995: if (imsg->hdr.type != MSG_IDENTIFY_DONE)
996: return;
997: c->flags |= CLIENT_IDENTIFIED;
998:
999: #ifdef __CYGWIN__
1000: c->fd = open(c->ttyname, O_RDWR|O_NOCTTY);
1001: c->cwd = open(".", O_RDONLY);
1002: #endif
1.75 nicm 1003:
1.109 nicm 1004: if (c->flags & CLIENT_CONTROL) {
1.75 nicm 1005: c->stdin_callback = control_callback;
1.109 nicm 1006:
1.97 nicm 1007: evbuffer_free(c->stderr_data);
1008: c->stderr_data = c->stdout_data;
1.109 nicm 1009:
1010: if (c->flags & CLIENT_CONTROLCONTROL)
1.96 nicm 1011: evbuffer_add_printf(c->stdout_data, "\033P1000p");
1.79 nicm 1012: server_write_client(c, MSG_STDIN, NULL, 0);
1.75 nicm 1013:
1014: c->tty.fd = -1;
1015: c->tty.log_fd = -1;
1016:
1.109 nicm 1017: close(c->fd);
1018: c->fd = -1;
1019:
1.75 nicm 1020: return;
1021: }
1.1 nicm 1022:
1.109 nicm 1023: if (c->fd == -1)
1.104 nicm 1024: return;
1.109 nicm 1025: if (!isatty(c->fd)) {
1026: close(c->fd);
1027: c->fd = -1;
1.80 nicm 1028: return;
1029: }
1.109 nicm 1030: tty_init(&c->tty, c, c->fd, c->term);
1031: if (c->flags & CLIENT_UTF8)
1.1 nicm 1032: c->tty.flags |= TTY_UTF8;
1.109 nicm 1033: if (c->flags & CLIENT_256COLOURS)
1.1 nicm 1034: c->tty.term_flags |= TERM_256COLOURS;
1035:
1036: tty_resize(&c->tty);
1037:
1.109 nicm 1038: if (!(c->flags & CLIENT_CONTROL))
1.86 nicm 1039: c->flags |= CLIENT_TERMINAL;
1.1 nicm 1040: }
1041:
1042: /* Handle shell message. */
1043: void
1044: server_client_msg_shell(struct client *c)
1045: {
1.107 nicm 1046: const char *shell;
1.25 nicm 1047:
1.1 nicm 1048: shell = options_get_string(&global_s_options, "default-shell");
1049: if (*shell == '\0' || areshell(shell))
1050: shell = _PATH_BSHELL;
1.107 nicm 1051: server_write_client(c, MSG_SHELL, shell, strlen(shell) + 1);
1.25 nicm 1052:
1.1 nicm 1053: c->flags |= CLIENT_BAD; /* it will die after exec */
1054: }
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