Annotation of src/usr.bin/tmux/server-client.c, Revision 1.91
1.91 ! nicm 1: /* $OpenBSD: server-client.c,v 1.90 2013/03/22 15:54:29 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>
20:
1.12 nicm 21: #include <event.h>
1.1 nicm 22: #include <fcntl.h>
23: #include <string.h>
1.4 nicm 24: #include <time.h>
1.1 nicm 25: #include <paths.h>
1.77 nicm 26: #include <stdlib.h>
1.1 nicm 27: #include <unistd.h>
28:
29: #include "tmux.h"
30:
1.91 ! nicm 31: void server_client_check_focus(struct window_pane *);
1.81 nicm 32: void server_client_check_mouse(struct client *, struct window_pane *);
1.17 nicm 33: void server_client_repeat_timer(int, short, void *);
1.36 nicm 34: void server_client_check_exit(struct client *);
1.1 nicm 35: void server_client_check_redraw(struct client *);
36: void server_client_set_title(struct client *);
1.18 nicm 37: void server_client_reset_state(struct client *);
1.82 nicm 38: int server_client_assume_paste(struct session *);
1.1 nicm 39:
40: int server_client_msg_dispatch(struct client *);
41: void server_client_msg_command(struct client *, struct msg_command_data *);
42: void server_client_msg_identify(
1.25 nicm 43: struct client *, struct msg_identify_data *, int);
1.1 nicm 44: void server_client_msg_shell(struct client *);
45:
46: void printflike2 server_client_msg_error(struct cmd_ctx *, const char *, ...);
47: void printflike2 server_client_msg_print(struct cmd_ctx *, const char *, ...);
48: void printflike2 server_client_msg_info(struct cmd_ctx *, const char *, ...);
49:
50: /* Create a new client. */
51: void
52: server_client_create(int fd)
53: {
54: struct client *c;
55: u_int i;
56:
1.49 nicm 57: setblocking(fd, 0);
1.1 nicm 58:
59: c = xcalloc(1, sizeof *c);
60: c->references = 0;
61: imsg_init(&c->ibuf, fd);
1.14 nicm 62: server_update_event(c);
1.25 nicm 63:
1.10 nicm 64: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 65: fatal("gettimeofday failed");
1.11 nicm 66: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.1 nicm 67:
1.73 nicm 68: c->stdin_data = evbuffer_new ();
69: c->stdout_data = evbuffer_new ();
70: c->stderr_data = evbuffer_new ();
1.33 nicm 71:
1.1 nicm 72: c->tty.fd = -1;
73: c->title = NULL;
74:
75: c->session = NULL;
1.45 nicm 76: c->last_session = NULL;
1.1 nicm 77: c->tty.sx = 80;
78: c->tty.sy = 24;
79:
80: screen_init(&c->status, c->tty.sx, 1, 0);
1.51 nicm 81: RB_INIT(&c->status_new);
82: RB_INIT(&c->status_old);
1.1 nicm 83:
84: c->message_string = NULL;
1.21 nicm 85: ARRAY_INIT(&c->message_log);
1.1 nicm 86:
87: c->prompt_string = NULL;
88: c->prompt_buffer = NULL;
89: c->prompt_index = 0;
90:
1.81 nicm 91: c->tty.mouse.xb = c->tty.mouse.button = 3;
92: c->tty.mouse.x = c->tty.mouse.y = -1;
93: c->tty.mouse.lx = c->tty.mouse.ly = -1;
94: c->tty.mouse.sx = c->tty.mouse.sy = -1;
95: c->tty.mouse.event = MOUSE_EVENT_UP;
96: c->tty.mouse.flags = 0;
1.57 nicm 97:
1.17 nicm 98: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
99:
1.1 nicm 100: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
101: if (ARRAY_ITEM(&clients, i) == NULL) {
102: ARRAY_SET(&clients, i, c);
103: return;
104: }
105: }
106: ARRAY_ADD(&clients, c);
107: log_debug("new client %d", fd);
1.72 nicm 108: }
109:
110: /* Open client terminal if needed. */
111: int
112: server_client_open(struct client *c, struct session *s, char **cause)
113: {
114: struct options *oo = s != NULL ? &s->options : &global_s_options;
115: char *overrides;
116:
1.75 nicm 117: if (c->flags & CLIENT_CONTROL)
118: return (0);
119:
1.72 nicm 120: if (!(c->flags & CLIENT_TERMINAL)) {
121: *cause = xstrdup ("not a terminal");
122: return (-1);
123: }
124:
125: overrides = options_get_string(oo, "terminal-overrides");
126: if (tty_open(&c->tty, overrides, cause) != 0)
127: return (-1);
128:
129: return (0);
1.1 nicm 130: }
131:
132: /* Lost a client. */
133: void
134: server_client_lost(struct client *c)
135: {
1.21 nicm 136: struct message_entry *msg;
137: u_int i;
1.1 nicm 138:
139: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
140: if (ARRAY_ITEM(&clients, i) == c)
141: ARRAY_SET(&clients, i, NULL);
142: }
143: log_debug("lost client %d", c->ibuf.fd);
144:
145: /*
146: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
147: * and tty_free might close an unrelated fd.
148: */
149: if (c->flags & CLIENT_TERMINAL)
150: tty_free(&c->tty);
151:
1.73 nicm 152: evbuffer_free (c->stdin_data);
153: evbuffer_free (c->stdout_data);
154: evbuffer_free (c->stderr_data);
1.33 nicm 155:
1.51 nicm 156: status_free_jobs(&c->status_new);
157: status_free_jobs(&c->status_old);
1.1 nicm 158: screen_free(&c->status);
159:
1.77 nicm 160: free(c->title);
1.1 nicm 161:
1.17 nicm 162: evtimer_del(&c->repeat_timer);
163:
1.69 nicm 164: if (event_initialized(&c->identify_timer))
165: evtimer_del(&c->identify_timer);
1.15 nicm 166:
1.77 nicm 167: free(c->message_string);
1.69 nicm 168: if (event_initialized (&c->message_timer))
169: evtimer_del(&c->message_timer);
1.21 nicm 170: for (i = 0; i < ARRAY_LENGTH(&c->message_log); i++) {
171: msg = &ARRAY_ITEM(&c->message_log, i);
1.77 nicm 172: free(msg->msg);
1.21 nicm 173: }
174: ARRAY_FREE(&c->message_log);
1.1 nicm 175:
1.77 nicm 176: free(c->prompt_string);
177: free(c->prompt_buffer);
178: free(c->cwd);
1.61 nicm 179:
180: environ_free(&c->environ);
1.1 nicm 181:
182: close(c->ibuf.fd);
183: imsg_clear(&c->ibuf);
1.69 nicm 184: if (event_initialized(&c->event))
185: event_del(&c->event);
1.13 nicm 186:
1.1 nicm 187: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
188: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
189: ARRAY_SET(&dead_clients, i, c);
190: break;
191: }
192: }
193: if (i == ARRAY_LENGTH(&dead_clients))
194: ARRAY_ADD(&dead_clients, c);
195: c->flags |= CLIENT_DEAD;
1.71 nicm 196:
197: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 198:
199: recalculate_sizes();
1.41 nicm 200: server_check_unattached();
1.19 nicm 201: server_update_socket();
1.9 nicm 202: }
203:
1.1 nicm 204: /* Process a single client event. */
205: void
1.12 nicm 206: server_client_callback(int fd, short events, void *data)
1.1 nicm 207: {
208: struct client *c = data;
1.7 nicm 209:
210: if (c->flags & CLIENT_DEAD)
211: return;
1.1 nicm 212:
213: if (fd == c->ibuf.fd) {
1.12 nicm 214: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 215: goto client_lost;
216:
217: if (c->flags & CLIENT_BAD) {
218: if (c->ibuf.w.queued == 0)
219: goto client_lost;
220: return;
221: }
222:
1.12 nicm 223: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 224: goto client_lost;
225: }
1.14 nicm 226:
1.73 nicm 227: server_push_stdout(c);
228: server_push_stderr(c);
229:
1.25 nicm 230: server_update_event(c);
1.1 nicm 231: return;
232:
233: client_lost:
234: server_client_lost(c);
235: }
236:
1.16 nicm 237: /* Handle client status timer. */
238: void
239: server_client_status_timer(void)
240: {
241: struct client *c;
242: struct session *s;
243: struct timeval tv;
1.20 nicm 244: u_int i;
245: int interval;
246: time_t difference;
1.16 nicm 247:
248: if (gettimeofday(&tv, NULL) != 0)
249: fatal("gettimeofday failed");
250:
251: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
252: c = ARRAY_ITEM(&clients, i);
253: if (c == NULL || c->session == NULL)
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;
270: if (difference >= interval) {
1.51 nicm 271: status_update_jobs(c);
1.16 nicm 272: c->flags |= CLIENT_STATUS;
273: }
274: }
275: }
276:
1.66 nicm 277: /* Check for mouse keys. */
278: void
1.81 nicm 279: server_client_check_mouse(struct client *c, struct window_pane *wp)
1.66 nicm 280: {
1.81 nicm 281: struct session *s = c->session;
282: struct options *oo = &s->options;
283: struct mouse_event *m = &c->tty.mouse;
284: int statusat;
1.66 nicm 285:
286: statusat = status_at_line(c);
287:
288: /* Is this a window selection click on the status line? */
1.81 nicm 289: if (statusat != -1 && m->y == (u_int)statusat &&
1.66 nicm 290: options_get_number(oo, "mouse-select-window")) {
1.81 nicm 291: if (m->event & MOUSE_EVENT_CLICK) {
292: status_set_window_at(c, m->x);
293: } else if (m->event == MOUSE_EVENT_WHEEL) {
294: if (m->wheel == MOUSE_WHEEL_UP)
1.66 nicm 295: session_previous(c->session, 0);
1.81 nicm 296: else if (m->wheel == MOUSE_WHEEL_DOWN)
1.66 nicm 297: session_next(c->session, 0);
1.81 nicm 298: server_redraw_session(s);
1.66 nicm 299: }
1.81 nicm 300: recalculate_sizes();
1.67 nicm 301: return;
1.66 nicm 302: }
303:
304: /*
305: * Not on status line - adjust mouse position if status line is at the
306: * top and limit if at the bottom. From here on a struct mouse
307: * represents the offset onto the window itself.
308: */
1.81 nicm 309: if (statusat == 0 && m->y > 0)
310: m->y--;
311: else if (statusat > 0 && m->y >= (u_int)statusat)
312: m->y = statusat - 1;
1.66 nicm 313:
314: /* Is this a pane selection? Allow down only in copy mode. */
315: if (options_get_number(oo, "mouse-select-pane") &&
1.81 nicm 316: (m->event == MOUSE_EVENT_DOWN || wp->mode != &window_copy_mode)) {
317: window_set_active_at(wp->window, m->x, m->y);
1.66 nicm 318: server_redraw_window_borders(wp->window);
319: wp = wp->window->active; /* may have changed */
320: }
321:
322: /* Check if trying to resize pane. */
323: if (options_get_number(oo, "mouse-resize-pane"))
1.81 nicm 324: layout_resize_pane_mouse(c);
1.66 nicm 325:
326: /* Update last and pass through to client. */
1.81 nicm 327: window_pane_mouse(wp, c->session, m);
1.66 nicm 328: }
329:
1.82 nicm 330: /* Is this fast enough to probably be a paste? */
331: int
332: server_client_assume_paste(struct session *s)
333: {
334: struct timeval tv;
1.84 nicm 335: int t;
1.82 nicm 336:
337: if ((t = options_get_number(&s->options, "assume-paste-time")) == 0)
1.83 nicm 338: return (0);
1.82 nicm 339:
340: timersub(&s->activity_time, &s->last_activity_time, &tv);
341: if (tv.tv_sec == 0 && tv.tv_usec < t * 1000)
1.83 nicm 342: return (1);
343: return (0);
1.82 nicm 344: }
345:
1.18 nicm 346: /* Handle data key input from client. */
347: void
1.74 nicm 348: server_client_handle_key(struct client *c, int key)
1.18 nicm 349: {
350: struct session *s;
351: struct window *w;
352: struct window_pane *wp;
353: struct timeval tv;
354: struct key_binding *bd;
1.82 nicm 355: int xtimeout, isprefix, ispaste;
1.18 nicm 356:
357: /* Check the client is good to accept input. */
358: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
359: return;
1.86 nicm 360:
1.18 nicm 361: if (c->session == NULL)
362: return;
363: s = c->session;
364:
365: /* Update the activity timer. */
366: if (gettimeofday(&c->activity_time, NULL) != 0)
367: fatal("gettimeofday failed");
1.82 nicm 368:
369: memcpy(&s->last_activity_time, &s->activity_time,
370: sizeof s->last_activity_time);
1.18 nicm 371: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
372:
373: w = c->session->curw->window;
374: wp = w->active;
375:
376: /* Special case: number keys jump to pane in identify mode. */
1.25 nicm 377: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 378: if (c->flags & CLIENT_READONLY)
379: return;
1.18 nicm 380: wp = window_pane_at_index(w, key - '0');
381: if (wp != NULL && window_pane_visible(wp))
382: window_set_active_pane(w, wp);
383: server_clear_identify(c);
384: return;
385: }
386:
387: /* Handle status line. */
1.30 nicm 388: if (!(c->flags & CLIENT_READONLY)) {
389: status_message_clear(c);
390: server_clear_identify(c);
391: }
1.18 nicm 392: if (c->prompt_string != NULL) {
1.30 nicm 393: if (!(c->flags & CLIENT_READONLY))
394: status_prompt_key(c, key);
1.18 nicm 395: return;
396: }
397:
398: /* Check for mouse keys. */
399: if (key == KEYC_MOUSE) {
1.30 nicm 400: if (c->flags & CLIENT_READONLY)
401: return;
1.81 nicm 402: server_client_check_mouse(c, wp);
1.18 nicm 403: return;
404: }
405:
406: /* Is this a prefix key? */
1.82 nicm 407: if (key == options_get_number(&s->options, "prefix"))
1.63 nicm 408: isprefix = 1;
1.82 nicm 409: else if (key == options_get_number(&s->options, "prefix2"))
1.63 nicm 410: isprefix = 1;
411: else
412: isprefix = 0;
1.18 nicm 413:
1.82 nicm 414: /* Treat prefix as a regular key when pasting is detected. */
415: ispaste = server_client_assume_paste(s);
416: if (ispaste)
417: isprefix = 0;
418:
1.18 nicm 419: /* No previous prefix key. */
420: if (!(c->flags & CLIENT_PREFIX)) {
1.82 nicm 421: if (isprefix) {
1.18 nicm 422: c->flags |= CLIENT_PREFIX;
1.85 nicm 423: server_status_client(c);
1.82 nicm 424: return;
1.18 nicm 425: }
1.82 nicm 426:
427: /* Try as a non-prefix key binding. */
428: if (ispaste || (bd = key_bindings_lookup(key)) == NULL) {
429: if (!(c->flags & CLIENT_READONLY))
430: window_pane_key(wp, s, key);
431: } else
432: key_bindings_dispatch(bd, c);
1.18 nicm 433: return;
434: }
435:
436: /* Prefix key already pressed. Reset prefix and lookup key. */
437: c->flags &= ~CLIENT_PREFIX;
1.85 nicm 438: server_status_client(c);
1.18 nicm 439: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
440: /* If repeating, treat this as a key, else ignore. */
441: if (c->flags & CLIENT_REPEAT) {
442: c->flags &= ~CLIENT_REPEAT;
443: if (isprefix)
444: c->flags |= CLIENT_PREFIX;
1.30 nicm 445: else if (!(c->flags & CLIENT_READONLY))
1.82 nicm 446: window_pane_key(wp, s, key);
1.18 nicm 447: }
448: return;
449: }
450:
451: /* If already repeating, but this key can't repeat, skip it. */
452: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
453: c->flags &= ~CLIENT_REPEAT;
454: if (isprefix)
455: c->flags |= CLIENT_PREFIX;
1.30 nicm 456: else if (!(c->flags & CLIENT_READONLY))
1.82 nicm 457: window_pane_key(wp, s, key);
1.18 nicm 458: return;
459: }
460:
461: /* If this key can repeat, reset the repeat flags and timer. */
1.82 nicm 462: xtimeout = options_get_number(&s->options, "repeat-time");
1.18 nicm 463: if (xtimeout != 0 && bd->can_repeat) {
464: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 465:
1.18 nicm 466: tv.tv_sec = xtimeout / 1000;
467: tv.tv_usec = (xtimeout % 1000) * 1000L;
468: evtimer_del(&c->repeat_timer);
469: evtimer_add(&c->repeat_timer, &tv);
470: }
471:
472: /* Dispatch the command. */
473: key_bindings_dispatch(bd, c);
474: }
475:
1.2 nicm 476: /* Client functions that need to happen every loop. */
477: void
478: server_client_loop(void)
479: {
480: struct client *c;
481: struct window *w;
482: struct window_pane *wp;
483: u_int i;
484:
485: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
486: c = ARRAY_ITEM(&clients, i);
1.36 nicm 487: if (c == NULL)
1.2 nicm 488: continue;
489:
1.36 nicm 490: server_client_check_exit(c);
491: if (c->session != NULL) {
492: server_client_check_redraw(c);
493: server_client_reset_state(c);
494: }
1.2 nicm 495: }
496:
497: /*
498: * Any windows will have been redrawn as part of clients, so clear
1.91 ! nicm 499: * their flags now. Also check and update pane focus.
1.2 nicm 500: */
501: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
502: w = ARRAY_ITEM(&windows, i);
503: if (w == NULL)
504: continue;
505:
506: w->flags &= ~WINDOW_REDRAW;
1.91 ! nicm 507: TAILQ_FOREACH(wp, &w->panes, entry) {
! 508: server_client_check_focus(wp);
1.2 nicm 509: wp->flags &= ~PANE_REDRAW;
1.91 ! nicm 510: }
1.2 nicm 511: }
1.91 ! nicm 512: }
! 513:
! 514: /* Check whether pane should be focused. */
! 515: void
! 516: server_client_check_focus(struct window_pane *wp)
! 517: {
! 518: struct session *s;
! 519:
! 520: /* If we don't care about focus, forget it. */
! 521: if (!(wp->base.mode & MODE_FOCUSON))
! 522: return;
! 523:
! 524: /* If we're not the active pane in our window, we're not focused. */
! 525: if (wp->window->active != wp)
! 526: goto not_focused;
! 527:
! 528: /* If we're in a mode, we're not focused. */
! 529: if (wp->screen != &wp->base)
! 530: goto not_focused;
! 531:
! 532: /*
! 533: * If our window is the current window in any attached sessions, we're
! 534: * focused.
! 535: */
! 536: RB_FOREACH(s, sessions, &sessions) {
! 537: if (s->flags & SESSION_UNATTACHED)
! 538: continue;
! 539: if (s->curw->window == wp->window)
! 540: goto focused;
! 541: }
! 542:
! 543: not_focused:
! 544: if (wp->flags & PANE_FOCUSED)
! 545: bufferevent_write(wp->event, "\033[O", 3);
! 546: wp->flags &= ~PANE_FOCUSED;
! 547: return;
! 548:
! 549: focused:
! 550: if (!(wp->flags & PANE_FOCUSED))
! 551: bufferevent_write(wp->event, "\033[I", 3);
! 552: wp->flags |= PANE_FOCUSED;
1.2 nicm 553: }
554:
1.18 nicm 555: /*
556: * Update cursor position and mode settings. The scroll region and attributes
557: * are cleared when idle (waiting for an event) as this is the most likely time
558: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
559: * compromise between excessive resets and likelihood of an interrupt.
560: *
561: * tty_region/tty_reset/tty_update_mode already take care of not resetting
562: * things that are already in their default state.
563: */
1.1 nicm 564: void
1.18 nicm 565: server_client_reset_state(struct client *c)
1.1 nicm 566: {
1.18 nicm 567: struct window *w = c->session->curw->window;
568: struct window_pane *wp = w->active;
569: struct screen *s = wp->screen;
570: struct options *oo = &c->session->options;
1.54 nicm 571: struct options *wo = &w->options;
1.66 nicm 572: int status, mode, o;
1.60 nicm 573:
574: if (c->flags & CLIENT_SUSPENDED)
575: return;
1.1 nicm 576:
1.86 nicm 577: if (c->flags & CLIENT_CONTROL)
578: return;
579:
1.1 nicm 580: tty_region(&c->tty, 0, c->tty.sy - 1);
581:
582: status = options_get_number(oo, "status");
583: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
584: tty_cursor(&c->tty, 0, 0);
1.66 nicm 585: else {
586: o = status && options_get_number (oo, "status-position") == 0;
587: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
588: }
1.1 nicm 589:
1.50 nicm 590: /*
1.57 nicm 591: * Resizing panes with the mouse requires at least button mode to give
592: * a smooth appearance.
593: */
594: mode = s->mode;
1.81 nicm 595: if ((c->tty.mouse.flags & MOUSE_RESIZE_PANE) &&
1.57 nicm 596: !(mode & (MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)))
597: mode |= MODE_MOUSE_BUTTON;
598:
599: /*
1.50 nicm 600: * Any mode will do for mouse-select-pane, but set standard mode if
601: * none.
602: */
1.54 nicm 603: if ((mode & ALL_MOUSE_MODES) == 0) {
604: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
1.55 nicm 605: options_get_number(oo, "mouse-select-pane"))
1.57 nicm 606: mode |= MODE_MOUSE_STANDARD;
607: else if (options_get_number(oo, "mouse-resize-pane"))
1.54 nicm 608: mode |= MODE_MOUSE_STANDARD;
609: else if (options_get_number(oo, "mouse-select-window"))
610: mode |= MODE_MOUSE_STANDARD;
611: else if (options_get_number(wo, "mode-mouse"))
612: mode |= MODE_MOUSE_STANDARD;
613: }
1.48 nicm 614:
615: /*
616: * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
617: * user has set mouse-utf8 and any mouse mode is in effect, turn on
618: * UTF-8 mouse input. If the receiving terminal hasn't requested it
619: * (that is, it isn't in s->mode), then it'll be converted in
620: * input_mouse.
621: */
622: if ((c->tty.flags & TTY_UTF8) &&
623: (mode & ALL_MOUSE_MODES) && options_get_number(oo, "mouse-utf8"))
624: mode |= MODE_MOUSE_UTF8;
625: else
626: mode &= ~MODE_MOUSE_UTF8;
627:
628: /* Set the terminal mode and reset attributes. */
1.59 nicm 629: tty_update_mode(&c->tty, mode, s);
1.1 nicm 630: tty_reset(&c->tty);
1.17 nicm 631: }
632:
633: /* Repeat time callback. */
634: void
635: server_client_repeat_timer(unused int fd, unused short events, void *data)
636: {
637: struct client *c = data;
638:
1.85 nicm 639: if (c->flags & CLIENT_REPEAT) {
640: if (c->flags & CLIENT_PREFIX)
641: server_status_client(c);
1.17 nicm 642: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.85 nicm 643: }
1.1 nicm 644: }
645:
1.36 nicm 646: /* Check if client should be exited. */
647: void
648: server_client_check_exit(struct client *c)
649: {
650: struct msg_exit_data exitdata;
651:
652: if (!(c->flags & CLIENT_EXIT))
653: return;
654:
1.73 nicm 655: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
656: return;
657: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 658: return;
1.73 nicm 659: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 660: return;
661:
662: exitdata.retcode = c->retcode;
663: server_write_client(c, MSG_EXIT, &exitdata, sizeof exitdata);
664:
665: c->flags &= ~CLIENT_EXIT;
1.38 nicm 666: }
667:
1.1 nicm 668: /* Check for client redraws. */
669: void
670: server_client_check_redraw(struct client *c)
671: {
672: struct session *s = c->session;
673: struct window_pane *wp;
674: int flags, redraw;
675:
1.86 nicm 676: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79 nicm 677: return;
678:
1.1 nicm 679: flags = c->tty.flags & TTY_FREEZE;
680: c->tty.flags &= ~TTY_FREEZE;
681:
682: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
683: if (options_get_number(&s->options, "set-titles"))
684: server_client_set_title(c);
1.12 nicm 685:
1.1 nicm 686: if (c->message_string != NULL)
687: redraw = status_message_redraw(c);
688: else if (c->prompt_string != NULL)
689: redraw = status_prompt_redraw(c);
690: else
691: redraw = status_redraw(c);
692: if (!redraw)
693: c->flags &= ~CLIENT_STATUS;
694: }
695:
696: if (c->flags & CLIENT_REDRAW) {
1.27 nicm 697: screen_redraw_screen(c, 0, 0);
698: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 699: } else if (c->flags & CLIENT_REDRAWWINDOW) {
700: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
701: screen_redraw_pane(c, wp);
702: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 703: } else {
704: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
705: if (wp->flags & PANE_REDRAW)
706: screen_redraw_pane(c, wp);
707: }
708: }
709:
1.27 nicm 710: if (c->flags & CLIENT_BORDERS)
711: screen_redraw_screen(c, 0, 1);
712:
1.1 nicm 713: if (c->flags & CLIENT_STATUS)
1.27 nicm 714: screen_redraw_screen(c, 1, 0);
1.1 nicm 715:
716: c->tty.flags |= flags;
717:
1.27 nicm 718: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 719: }
720:
721: /* Set client title. */
722: void
723: server_client_set_title(struct client *c)
724: {
725: struct session *s = c->session;
726: const char *template;
727: char *title;
728:
729: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 730:
1.52 nicm 731: title = status_replace(c, NULL, NULL, NULL, template, time(NULL), 1);
1.1 nicm 732: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 nicm 733: free(c->title);
1.1 nicm 734: c->title = xstrdup(title);
735: tty_set_title(&c->tty, c->title);
736: }
1.77 nicm 737: free(title);
1.1 nicm 738: }
739:
740: /* Dispatch message from client. */
741: int
742: server_client_msg_dispatch(struct client *c)
743: {
744: struct imsg imsg;
745: struct msg_command_data commanddata;
746: struct msg_identify_data identifydata;
747: struct msg_environ_data environdata;
1.73 nicm 748: struct msg_stdin_data stdindata;
1.1 nicm 749: ssize_t n, datalen;
750:
1.8 deraadt 751: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
752: return (-1);
1.1 nicm 753:
754: for (;;) {
755: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
756: return (-1);
757: if (n == 0)
758: return (0);
759: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
760:
761: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
762: server_write_client(c, MSG_VERSION, NULL, 0);
763: c->flags |= CLIENT_BAD;
764: imsg_free(&imsg);
765: continue;
766: }
767:
768: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
769: switch (imsg.hdr.type) {
770: case MSG_COMMAND:
771: if (datalen != sizeof commanddata)
772: fatalx("bad MSG_COMMAND size");
773: memcpy(&commanddata, imsg.data, sizeof commanddata);
774:
775: server_client_msg_command(c, &commanddata);
776: break;
777: case MSG_IDENTIFY:
778: if (datalen != sizeof identifydata)
779: fatalx("bad MSG_IDENTIFY size");
780: if (imsg.fd == -1)
781: fatalx("MSG_IDENTIFY missing fd");
782: memcpy(&identifydata, imsg.data, sizeof identifydata);
783:
784: server_client_msg_identify(c, &identifydata, imsg.fd);
785: break;
1.73 nicm 786: case MSG_STDIN:
787: if (datalen != sizeof stdindata)
788: fatalx("bad MSG_STDIN size");
789: memcpy(&stdindata, imsg.data, sizeof stdindata);
1.36 nicm 790:
1.73 nicm 791: if (c->stdin_callback == NULL)
792: break;
793: if (stdindata.size <= 0)
794: c->stdin_closed = 1;
795: else {
796: evbuffer_add(c->stdin_data, stdindata.data,
797: stdindata.size);
798: }
799: c->stdin_callback(c, c->stdin_closed,
800: c->stdin_callback_data);
1.33 nicm 801: break;
1.1 nicm 802: case MSG_RESIZE:
803: if (datalen != 0)
804: fatalx("bad MSG_RESIZE size");
805:
1.86 nicm 806: if (c->flags & CLIENT_CONTROL)
807: break;
1.32 nicm 808: if (tty_resize(&c->tty)) {
809: recalculate_sizes();
810: server_redraw_client(c);
811: }
1.1 nicm 812: break;
813: case MSG_EXITING:
814: if (datalen != 0)
815: fatalx("bad MSG_EXITING size");
816:
817: c->session = NULL;
818: tty_close(&c->tty);
819: server_write_client(c, MSG_EXITED, NULL, 0);
820: break;
821: case MSG_WAKEUP:
822: case MSG_UNLOCK:
823: if (datalen != 0)
824: fatalx("bad MSG_WAKEUP size");
825:
826: if (!(c->flags & CLIENT_SUSPENDED))
827: break;
828: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 829:
1.11 nicm 830: if (gettimeofday(&c->activity_time, NULL) != 0)
831: fatal("gettimeofday");
1.47 nicm 832: if (c->session != NULL)
833: session_update_activity(c->session);
1.10 nicm 834:
1.1 nicm 835: tty_start_tty(&c->tty);
836: server_redraw_client(c);
837: recalculate_sizes();
838: break;
839: case MSG_ENVIRON:
840: if (datalen != sizeof environdata)
841: fatalx("bad MSG_ENVIRON size");
842: memcpy(&environdata, imsg.data, sizeof environdata);
843:
844: environdata.var[(sizeof environdata.var) - 1] = '\0';
845: if (strchr(environdata.var, '=') != NULL)
846: environ_put(&c->environ, environdata.var);
847: break;
848: case MSG_SHELL:
849: if (datalen != 0)
850: fatalx("bad MSG_SHELL size");
851:
852: server_client_msg_shell(c);
853: break;
854: default:
855: fatalx("unexpected message");
856: }
857:
858: imsg_free(&imsg);
859: }
860: }
861:
862: /* Callback to send error message to client. */
863: void printflike2
864: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
865: {
1.33 nicm 866: va_list ap;
1.1 nicm 867:
868: va_start(ap, fmt);
1.73 nicm 869: evbuffer_add_vprintf(ctx->cmdclient->stderr_data, fmt, ap);
1.1 nicm 870: va_end(ap);
871:
1.73 nicm 872: evbuffer_add(ctx->cmdclient->stderr_data, "\n", 1);
873: server_push_stderr(ctx->cmdclient);
1.34 nicm 874: ctx->cmdclient->retcode = 1;
1.1 nicm 875: }
876:
877: /* Callback to send print message to client. */
878: void printflike2
879: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
880: {
1.33 nicm 881: va_list ap;
1.1 nicm 882:
883: va_start(ap, fmt);
1.73 nicm 884: evbuffer_add_vprintf(ctx->cmdclient->stdout_data, fmt, ap);
1.1 nicm 885: va_end(ap);
886:
1.73 nicm 887: evbuffer_add(ctx->cmdclient->stdout_data, "\n", 1);
888: server_push_stdout(ctx->cmdclient);
1.1 nicm 889: }
890:
891: /* Callback to send print message to client, if not quiet. */
892: void printflike2
893: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
894: {
1.33 nicm 895: va_list ap;
1.1 nicm 896:
1.26 nicm 897: if (options_get_number(&global_options, "quiet"))
1.1 nicm 898: return;
899:
900: va_start(ap, fmt);
1.73 nicm 901: evbuffer_add_vprintf(ctx->cmdclient->stdout_data, fmt, ap);
1.1 nicm 902: va_end(ap);
903:
1.73 nicm 904: evbuffer_add(ctx->cmdclient->stdout_data, "\n", 1);
905: server_push_stdout(ctx->cmdclient);
1.1 nicm 906: }
907:
908: /* Handle command message. */
909: void
910: server_client_msg_command(struct client *c, struct msg_command_data *data)
911: {
1.88 nicm 912: struct cmd_ctx *ctx;
1.36 nicm 913: struct cmd_list *cmdlist = NULL;
914: int argc;
915: char **argv, *cause;
1.1 nicm 916:
1.90 nicm 917: ctx = cmd_get_ctx(c, NULL);
1.88 nicm 918: ctx->msgdata = data;
919: ctx->error = server_client_msg_error;
920: ctx->print = server_client_msg_print;
921: ctx->info = server_client_msg_info;
1.1 nicm 922:
923: argc = data->argc;
924: data->argv[(sizeof data->argv) - 1] = '\0';
925: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
1.88 nicm 926: server_client_msg_error(ctx, "command too long");
1.1 nicm 927: goto error;
928: }
929:
930: if (argc == 0) {
931: argc = 1;
932: argv = xcalloc(1, sizeof *argv);
933: *argv = xstrdup("new-session");
934: }
935:
936: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
1.88 nicm 937: server_client_msg_error(ctx, "%s", cause);
1.1 nicm 938: cmd_free_argv(argc, argv);
939: goto error;
940: }
941: cmd_free_argv(argc, argv);
942:
1.88 nicm 943: switch (cmd_list_exec(cmdlist, ctx))
1.78 nicm 944: {
945: case CMD_RETURN_ERROR:
946: case CMD_RETURN_NORMAL:
1.36 nicm 947: c->flags |= CLIENT_EXIT;
1.78 nicm 948: break;
949: case CMD_RETURN_ATTACH:
950: case CMD_RETURN_YIELD:
951: break;
952: }
1.1 nicm 953: cmd_list_free(cmdlist);
1.88 nicm 954: cmd_free_ctx(ctx);
1.1 nicm 955: return;
956:
957: error:
958: if (cmdlist != NULL)
959: cmd_list_free(cmdlist);
1.88 nicm 960: cmd_free_ctx(ctx);
961:
1.36 nicm 962: c->flags |= CLIENT_EXIT;
1.1 nicm 963: }
964:
965: /* Handle identify message. */
966: void
967: server_client_msg_identify(
968: struct client *c, struct msg_identify_data *data, int fd)
969: {
970: c->cwd = NULL;
971: data->cwd[(sizeof data->cwd) - 1] = '\0';
972: if (*data->cwd != '\0')
973: c->cwd = xstrdup(data->cwd);
1.75 nicm 974:
975: if (data->flags & IDENTIFY_CONTROL) {
976: c->stdin_callback = control_callback;
1.86 nicm 977: c->flags |= CLIENT_CONTROL;
1.79 nicm 978: server_write_client(c, MSG_STDIN, NULL, 0);
1.75 nicm 979:
980: c->tty.fd = -1;
981: c->tty.log_fd = -1;
982:
983: close(fd);
984: return;
985: }
1.1 nicm 986:
1.80 nicm 987: if (!isatty(fd)) {
988: close(fd);
989: return;
990: }
1.1 nicm 991: data->term[(sizeof data->term) - 1] = '\0';
1.74 nicm 992: tty_init(&c->tty, c, fd, data->term);
1.1 nicm 993: if (data->flags & IDENTIFY_UTF8)
994: c->tty.flags |= TTY_UTF8;
995: if (data->flags & IDENTIFY_256COLOURS)
996: c->tty.term_flags |= TERM_256COLOURS;
997: else if (data->flags & IDENTIFY_88COLOURS)
998: c->tty.term_flags |= TERM_88COLOURS;
999:
1000: tty_resize(&c->tty);
1001:
1.86 nicm 1002: if (!(data->flags & IDENTIFY_CONTROL))
1003: c->flags |= CLIENT_TERMINAL;
1.1 nicm 1004: }
1005:
1006: /* Handle shell message. */
1007: void
1008: server_client_msg_shell(struct client *c)
1009: {
1010: struct msg_shell_data data;
1011: const char *shell;
1.25 nicm 1012:
1.1 nicm 1013: shell = options_get_string(&global_s_options, "default-shell");
1014:
1015: if (*shell == '\0' || areshell(shell))
1016: shell = _PATH_BSHELL;
1017: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
1018: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
1.25 nicm 1019:
1.1 nicm 1020: server_write_client(c, MSG_SHELL, &data, sizeof data);
1021: c->flags |= CLIENT_BAD; /* it will die after exec */
1022: }
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