Annotation of src/usr.bin/tmux/server-client.c, Revision 1.73
1.73 ! nicm 1: /* $OpenBSD: server-client.c,v 1.72 2012/05/06 07:38:17 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>
26: #include <unistd.h>
27:
28: #include "tmux.h"
29:
1.66 nicm 30: void server_client_check_mouse(struct client *c,
31: struct window_pane *wp, struct mouse_event *mouse);
1.18 nicm 32: void server_client_handle_key(int, struct mouse_event *, void *);
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 *);
1.1 nicm 38:
39: int server_client_msg_dispatch(struct client *);
40: void server_client_msg_command(struct client *, struct msg_command_data *);
41: void server_client_msg_identify(
1.25 nicm 42: struct client *, struct msg_identify_data *, int);
1.1 nicm 43: void server_client_msg_shell(struct client *);
44:
45: void printflike2 server_client_msg_error(struct cmd_ctx *, const char *, ...);
46: void printflike2 server_client_msg_print(struct cmd_ctx *, const char *, ...);
47: void printflike2 server_client_msg_info(struct cmd_ctx *, const char *, ...);
48:
49: /* Create a new client. */
50: void
51: server_client_create(int fd)
52: {
53: struct client *c;
54: u_int i;
55:
1.49 nicm 56: setblocking(fd, 0);
1.1 nicm 57:
58: c = xcalloc(1, sizeof *c);
59: c->references = 0;
60: imsg_init(&c->ibuf, fd);
1.14 nicm 61: server_update_event(c);
1.25 nicm 62:
1.10 nicm 63: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 64: fatal("gettimeofday failed");
1.11 nicm 65: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.1 nicm 66:
1.73 ! nicm 67: c->stdin_data = evbuffer_new ();
! 68: c->stdout_data = evbuffer_new ();
! 69: c->stderr_data = evbuffer_new ();
1.33 nicm 70:
1.1 nicm 71: c->tty.fd = -1;
72: c->title = NULL;
73:
74: c->session = NULL;
1.45 nicm 75: c->last_session = NULL;
1.1 nicm 76: c->tty.sx = 80;
77: c->tty.sy = 24;
78:
79: screen_init(&c->status, c->tty.sx, 1, 0);
1.51 nicm 80: RB_INIT(&c->status_new);
81: RB_INIT(&c->status_old);
1.1 nicm 82:
83: c->message_string = NULL;
1.21 nicm 84: ARRAY_INIT(&c->message_log);
1.1 nicm 85:
86: c->prompt_string = NULL;
87: c->prompt_buffer = NULL;
88: c->prompt_index = 0;
89:
1.57 nicm 90: c->last_mouse.b = MOUSE_UP;
91: c->last_mouse.x = c->last_mouse.y = -1;
92:
1.17 nicm 93: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
94:
1.1 nicm 95: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
96: if (ARRAY_ITEM(&clients, i) == NULL) {
97: ARRAY_SET(&clients, i, c);
98: return;
99: }
100: }
101: ARRAY_ADD(&clients, c);
102: log_debug("new client %d", fd);
1.72 nicm 103: }
104:
105: /* Open client terminal if needed. */
106: int
107: server_client_open(struct client *c, struct session *s, char **cause)
108: {
109: struct options *oo = s != NULL ? &s->options : &global_s_options;
110: char *overrides;
111:
112: if (!(c->flags & CLIENT_TERMINAL)) {
113: *cause = xstrdup ("not a terminal");
114: return (-1);
115: }
116:
117: overrides = options_get_string(oo, "terminal-overrides");
118: if (tty_open(&c->tty, overrides, cause) != 0)
119: return (-1);
120:
121: return (0);
1.1 nicm 122: }
123:
124: /* Lost a client. */
125: void
126: server_client_lost(struct client *c)
127: {
1.21 nicm 128: struct message_entry *msg;
129: u_int i;
1.1 nicm 130:
131: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
132: if (ARRAY_ITEM(&clients, i) == c)
133: ARRAY_SET(&clients, i, NULL);
134: }
135: log_debug("lost client %d", c->ibuf.fd);
136:
137: /*
138: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
139: * and tty_free might close an unrelated fd.
140: */
141: if (c->flags & CLIENT_TERMINAL)
142: tty_free(&c->tty);
143:
1.73 ! nicm 144: evbuffer_free (c->stdin_data);
! 145: evbuffer_free (c->stdout_data);
! 146: evbuffer_free (c->stderr_data);
1.33 nicm 147:
1.51 nicm 148: status_free_jobs(&c->status_new);
149: status_free_jobs(&c->status_old);
1.1 nicm 150: screen_free(&c->status);
151:
152: if (c->title != NULL)
153: xfree(c->title);
154:
1.17 nicm 155: evtimer_del(&c->repeat_timer);
156:
1.69 nicm 157: if (event_initialized(&c->identify_timer))
158: evtimer_del(&c->identify_timer);
1.15 nicm 159:
1.1 nicm 160: if (c->message_string != NULL)
161: xfree(c->message_string);
1.69 nicm 162: if (event_initialized (&c->message_timer))
163: evtimer_del(&c->message_timer);
1.21 nicm 164: for (i = 0; i < ARRAY_LENGTH(&c->message_log); i++) {
165: msg = &ARRAY_ITEM(&c->message_log, i);
166: xfree(msg->msg);
167: }
168: ARRAY_FREE(&c->message_log);
1.1 nicm 169:
170: if (c->prompt_string != NULL)
171: xfree(c->prompt_string);
172: if (c->prompt_buffer != NULL)
173: xfree(c->prompt_buffer);
174:
175: if (c->cwd != NULL)
176: xfree(c->cwd);
1.61 nicm 177:
178: environ_free(&c->environ);
1.1 nicm 179:
180: close(c->ibuf.fd);
181: imsg_clear(&c->ibuf);
1.69 nicm 182: if (event_initialized(&c->event))
183: event_del(&c->event);
1.13 nicm 184:
1.1 nicm 185: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
186: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
187: ARRAY_SET(&dead_clients, i, c);
188: break;
189: }
190: }
191: if (i == ARRAY_LENGTH(&dead_clients))
192: ARRAY_ADD(&dead_clients, c);
193: c->flags |= CLIENT_DEAD;
1.71 nicm 194:
195: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 196:
197: recalculate_sizes();
1.41 nicm 198: server_check_unattached();
1.19 nicm 199: server_update_socket();
1.9 nicm 200: }
201:
1.1 nicm 202: /* Process a single client event. */
203: void
1.12 nicm 204: server_client_callback(int fd, short events, void *data)
1.1 nicm 205: {
206: struct client *c = data;
1.7 nicm 207:
208: if (c->flags & CLIENT_DEAD)
209: return;
1.1 nicm 210:
211: if (fd == c->ibuf.fd) {
1.12 nicm 212: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 213: goto client_lost;
214:
215: if (c->flags & CLIENT_BAD) {
216: if (c->ibuf.w.queued == 0)
217: goto client_lost;
218: return;
219: }
220:
1.12 nicm 221: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 222: goto client_lost;
223: }
1.14 nicm 224:
1.73 ! nicm 225: server_push_stdout(c);
! 226: server_push_stderr(c);
! 227:
1.25 nicm 228: server_update_event(c);
1.1 nicm 229: return;
230:
231: client_lost:
232: server_client_lost(c);
233: }
234:
1.16 nicm 235: /* Handle client status timer. */
236: void
237: server_client_status_timer(void)
238: {
239: struct client *c;
240: struct session *s;
241: struct timeval tv;
1.20 nicm 242: u_int i;
243: int interval;
244: time_t difference;
1.16 nicm 245:
246: if (gettimeofday(&tv, NULL) != 0)
247: fatal("gettimeofday failed");
248:
249: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
250: c = ARRAY_ITEM(&clients, i);
251: if (c == NULL || c->session == NULL)
252: continue;
253: if (c->message_string != NULL || c->prompt_string != NULL) {
254: /*
255: * Don't need timed redraw for messages/prompts so bail
256: * now. The status timer isn't reset when they are
257: * redrawn anyway.
258: */
259: continue;
260: }
261: s = c->session;
262:
263: if (!options_get_number(&s->options, "status"))
264: continue;
265: interval = options_get_number(&s->options, "status-interval");
266:
1.20 nicm 267: difference = tv.tv_sec - c->status_timer.tv_sec;
268: if (difference >= interval) {
1.51 nicm 269: status_update_jobs(c);
1.16 nicm 270: c->flags |= CLIENT_STATUS;
271: }
272: }
273: }
274:
1.66 nicm 275: /* Check for mouse keys. */
276: void
277: server_client_check_mouse(
278: struct client *c, struct window_pane *wp, struct mouse_event *mouse)
279: {
280: struct session *s = c->session;
281: struct options *oo = &s->options;
282: int statusat;
283:
284: statusat = status_at_line(c);
285:
286: /* Is this a window selection click on the status line? */
287: if (statusat != -1 && mouse->y == (u_int)statusat &&
288: options_get_number(oo, "mouse-select-window")) {
289: if (mouse->b == MOUSE_UP && c->last_mouse.b != MOUSE_UP) {
290: status_set_window_at(c, mouse->x);
1.70 nicm 291: recalculate_sizes();
1.66 nicm 292: return;
293: }
294: if (mouse->b & MOUSE_45) {
295: if ((mouse->b & MOUSE_BUTTON) == MOUSE_1) {
296: session_previous(c->session, 0);
297: server_redraw_session(s);
1.70 nicm 298: recalculate_sizes();
1.66 nicm 299: }
300: if ((mouse->b & MOUSE_BUTTON) == MOUSE_2) {
301: session_next(c->session, 0);
302: server_redraw_session(s);
1.70 nicm 303: recalculate_sizes();
1.66 nicm 304: }
305: return;
306: }
1.67 nicm 307: memcpy(&c->last_mouse, mouse, sizeof c->last_mouse);
308: return;
1.66 nicm 309: }
310:
311: /*
312: * Not on status line - adjust mouse position if status line is at the
313: * top and limit if at the bottom. From here on a struct mouse
314: * represents the offset onto the window itself.
315: */
316: if (statusat == 0 &&mouse->y > 0)
317: mouse->y--;
318: else if (statusat > 0 && mouse->y >= (u_int)statusat)
319: mouse->y = statusat - 1;
320:
321: /* Is this a pane selection? Allow down only in copy mode. */
322: if (options_get_number(oo, "mouse-select-pane") &&
323: ((!(mouse->b & MOUSE_DRAG) && mouse->b != MOUSE_UP) ||
324: wp->mode != &window_copy_mode)) {
325: window_set_active_at(wp->window, mouse->x, mouse->y);
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"))
332: layout_resize_pane_mouse(c, mouse);
333:
334: /* Update last and pass through to client. */
335: memcpy(&c->last_mouse, mouse, sizeof c->last_mouse);
336: window_pane_mouse(wp, c->session, mouse);
337: }
338:
1.18 nicm 339: /* Handle data key input from client. */
340: void
341: server_client_handle_key(int key, struct mouse_event *mouse, void *data)
342: {
343: struct client *c = data;
344: struct session *s;
345: struct window *w;
346: struct window_pane *wp;
347: struct options *oo;
348: struct timeval tv;
349: struct key_binding *bd;
350: int xtimeout, isprefix;
351:
352: /* Check the client is good to accept input. */
353: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
354: return;
355: if (c->session == NULL)
356: return;
357: s = c->session;
358:
359: /* Update the activity timer. */
360: if (gettimeofday(&c->activity_time, NULL) != 0)
361: fatal("gettimeofday failed");
362: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
363:
364: w = c->session->curw->window;
365: wp = w->active;
366: oo = &c->session->options;
367:
368: /* Special case: number keys jump to pane in identify mode. */
1.25 nicm 369: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 370: if (c->flags & CLIENT_READONLY)
371: return;
1.18 nicm 372: wp = window_pane_at_index(w, key - '0');
373: if (wp != NULL && window_pane_visible(wp))
374: window_set_active_pane(w, wp);
375: server_clear_identify(c);
376: return;
377: }
378:
379: /* Handle status line. */
1.30 nicm 380: if (!(c->flags & CLIENT_READONLY)) {
381: status_message_clear(c);
382: server_clear_identify(c);
383: }
1.18 nicm 384: if (c->prompt_string != NULL) {
1.30 nicm 385: if (!(c->flags & CLIENT_READONLY))
386: status_prompt_key(c, key);
1.18 nicm 387: return;
388: }
389:
390: /* Check for mouse keys. */
391: if (key == KEYC_MOUSE) {
1.30 nicm 392: if (c->flags & CLIENT_READONLY)
393: return;
1.66 nicm 394: server_client_check_mouse(c, wp, mouse);
1.18 nicm 395: return;
396: }
397:
398: /* Is this a prefix key? */
1.63 nicm 399: if (key == options_get_number(&c->session->options, "prefix"))
400: isprefix = 1;
401: else if (key == options_get_number(&c->session->options, "prefix2"))
402: isprefix = 1;
403: else
404: isprefix = 0;
1.18 nicm 405:
406: /* No previous prefix key. */
407: if (!(c->flags & CLIENT_PREFIX)) {
408: if (isprefix)
409: c->flags |= CLIENT_PREFIX;
410: else {
411: /* Try as a non-prefix key binding. */
1.30 nicm 412: if ((bd = key_bindings_lookup(key)) == NULL) {
413: if (!(c->flags & CLIENT_READONLY))
1.31 nicm 414: window_pane_key(wp, c->session, key);
1.30 nicm 415: } else
1.18 nicm 416: key_bindings_dispatch(bd, c);
417: }
418: return;
419: }
420:
421: /* Prefix key already pressed. Reset prefix and lookup key. */
422: c->flags &= ~CLIENT_PREFIX;
423: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
424: /* If repeating, treat this as a key, else ignore. */
425: if (c->flags & CLIENT_REPEAT) {
426: c->flags &= ~CLIENT_REPEAT;
427: if (isprefix)
428: c->flags |= CLIENT_PREFIX;
1.30 nicm 429: else if (!(c->flags & CLIENT_READONLY))
1.31 nicm 430: window_pane_key(wp, c->session, key);
1.18 nicm 431: }
432: return;
433: }
434:
435: /* If already repeating, but this key can't repeat, skip it. */
436: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
437: c->flags &= ~CLIENT_REPEAT;
438: if (isprefix)
439: c->flags |= CLIENT_PREFIX;
1.30 nicm 440: else if (!(c->flags & CLIENT_READONLY))
1.31 nicm 441: window_pane_key(wp, c->session, key);
1.18 nicm 442: return;
443: }
444:
445: /* If this key can repeat, reset the repeat flags and timer. */
446: xtimeout = options_get_number(&c->session->options, "repeat-time");
447: if (xtimeout != 0 && bd->can_repeat) {
448: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 449:
1.18 nicm 450: tv.tv_sec = xtimeout / 1000;
451: tv.tv_usec = (xtimeout % 1000) * 1000L;
452: evtimer_del(&c->repeat_timer);
453: evtimer_add(&c->repeat_timer, &tv);
454: }
455:
456: /* Dispatch the command. */
457: key_bindings_dispatch(bd, c);
458: }
459:
1.2 nicm 460: /* Client functions that need to happen every loop. */
461: void
462: server_client_loop(void)
463: {
464: struct client *c;
465: struct window *w;
466: struct window_pane *wp;
467: u_int i;
468:
469: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
470: c = ARRAY_ITEM(&clients, i);
1.36 nicm 471: if (c == NULL)
1.2 nicm 472: continue;
473:
1.36 nicm 474: server_client_check_exit(c);
475: if (c->session != NULL) {
476: server_client_check_redraw(c);
477: server_client_reset_state(c);
478: }
1.2 nicm 479: }
480:
481: /*
482: * Any windows will have been redrawn as part of clients, so clear
483: * their flags now.
484: */
485: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
486: w = ARRAY_ITEM(&windows, i);
487: if (w == NULL)
488: continue;
489:
490: w->flags &= ~WINDOW_REDRAW;
491: TAILQ_FOREACH(wp, &w->panes, entry)
492: wp->flags &= ~PANE_REDRAW;
493: }
494: }
495:
1.18 nicm 496: /*
497: * Update cursor position and mode settings. The scroll region and attributes
498: * are cleared when idle (waiting for an event) as this is the most likely time
499: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
500: * compromise between excessive resets and likelihood of an interrupt.
501: *
502: * tty_region/tty_reset/tty_update_mode already take care of not resetting
503: * things that are already in their default state.
504: */
1.1 nicm 505: void
1.18 nicm 506: server_client_reset_state(struct client *c)
1.1 nicm 507: {
1.18 nicm 508: struct window *w = c->session->curw->window;
509: struct window_pane *wp = w->active;
510: struct screen *s = wp->screen;
511: struct options *oo = &c->session->options;
1.54 nicm 512: struct options *wo = &w->options;
1.66 nicm 513: int status, mode, o;
1.60 nicm 514:
515: if (c->flags & CLIENT_SUSPENDED)
516: return;
1.1 nicm 517:
518: tty_region(&c->tty, 0, c->tty.sy - 1);
519:
520: status = options_get_number(oo, "status");
521: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
522: tty_cursor(&c->tty, 0, 0);
1.66 nicm 523: else {
524: o = status && options_get_number (oo, "status-position") == 0;
525: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
526: }
1.1 nicm 527:
1.50 nicm 528: /*
1.57 nicm 529: * Resizing panes with the mouse requires at least button mode to give
530: * a smooth appearance.
531: */
532: mode = s->mode;
533: if ((c->last_mouse.b & MOUSE_RESIZE_PANE) &&
534: !(mode & (MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)))
535: mode |= MODE_MOUSE_BUTTON;
536:
537: /*
1.50 nicm 538: * Any mode will do for mouse-select-pane, but set standard mode if
539: * none.
540: */
1.54 nicm 541: if ((mode & ALL_MOUSE_MODES) == 0) {
542: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
1.55 nicm 543: options_get_number(oo, "mouse-select-pane"))
1.57 nicm 544: mode |= MODE_MOUSE_STANDARD;
545: else if (options_get_number(oo, "mouse-resize-pane"))
1.54 nicm 546: mode |= MODE_MOUSE_STANDARD;
547: else if (options_get_number(oo, "mouse-select-window"))
548: mode |= MODE_MOUSE_STANDARD;
549: else if (options_get_number(wo, "mode-mouse"))
550: mode |= MODE_MOUSE_STANDARD;
551: }
1.48 nicm 552:
553: /*
554: * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
555: * user has set mouse-utf8 and any mouse mode is in effect, turn on
556: * UTF-8 mouse input. If the receiving terminal hasn't requested it
557: * (that is, it isn't in s->mode), then it'll be converted in
558: * input_mouse.
559: */
560: if ((c->tty.flags & TTY_UTF8) &&
561: (mode & ALL_MOUSE_MODES) && options_get_number(oo, "mouse-utf8"))
562: mode |= MODE_MOUSE_UTF8;
563: else
564: mode &= ~MODE_MOUSE_UTF8;
565:
566: /* Set the terminal mode and reset attributes. */
1.59 nicm 567: tty_update_mode(&c->tty, mode, s);
1.1 nicm 568: tty_reset(&c->tty);
1.17 nicm 569: }
570:
571: /* Repeat time callback. */
1.24 nicm 572: /* ARGSUSED */
1.17 nicm 573: void
574: server_client_repeat_timer(unused int fd, unused short events, void *data)
575: {
576: struct client *c = data;
577:
578: if (c->flags & CLIENT_REPEAT)
579: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.1 nicm 580: }
581:
1.36 nicm 582: /* Check if client should be exited. */
583: void
584: server_client_check_exit(struct client *c)
585: {
586: struct msg_exit_data exitdata;
587:
588: if (!(c->flags & CLIENT_EXIT))
589: return;
590:
1.73 ! nicm 591: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
! 592: return;
! 593: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 594: return;
1.73 ! nicm 595: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 596: return;
597:
598: exitdata.retcode = c->retcode;
599: server_write_client(c, MSG_EXIT, &exitdata, sizeof exitdata);
600:
601: c->flags &= ~CLIENT_EXIT;
1.38 nicm 602: }
603:
1.1 nicm 604: /* Check for client redraws. */
605: void
606: server_client_check_redraw(struct client *c)
607: {
608: struct session *s = c->session;
609: struct window_pane *wp;
610: int flags, redraw;
611:
612: flags = c->tty.flags & TTY_FREEZE;
613: c->tty.flags &= ~TTY_FREEZE;
614:
615: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
616: if (options_get_number(&s->options, "set-titles"))
617: server_client_set_title(c);
1.12 nicm 618:
1.1 nicm 619: if (c->message_string != NULL)
620: redraw = status_message_redraw(c);
621: else if (c->prompt_string != NULL)
622: redraw = status_prompt_redraw(c);
623: else
624: redraw = status_redraw(c);
625: if (!redraw)
626: c->flags &= ~CLIENT_STATUS;
627: }
628:
629: if (c->flags & CLIENT_REDRAW) {
1.27 nicm 630: screen_redraw_screen(c, 0, 0);
631: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 632: } else if (c->flags & CLIENT_REDRAWWINDOW) {
633: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
634: screen_redraw_pane(c, wp);
635: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 636: } else {
637: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
638: if (wp->flags & PANE_REDRAW)
639: screen_redraw_pane(c, wp);
640: }
641: }
642:
1.27 nicm 643: if (c->flags & CLIENT_BORDERS)
644: screen_redraw_screen(c, 0, 1);
645:
1.1 nicm 646: if (c->flags & CLIENT_STATUS)
1.27 nicm 647: screen_redraw_screen(c, 1, 0);
1.1 nicm 648:
649: c->tty.flags |= flags;
650:
1.27 nicm 651: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 652: }
653:
654: /* Set client title. */
655: void
656: server_client_set_title(struct client *c)
657: {
658: struct session *s = c->session;
659: const char *template;
660: char *title;
661:
662: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 663:
1.52 nicm 664: title = status_replace(c, NULL, NULL, NULL, template, time(NULL), 1);
1.1 nicm 665: if (c->title == NULL || strcmp(title, c->title) != 0) {
666: if (c->title != NULL)
667: xfree(c->title);
668: c->title = xstrdup(title);
669: tty_set_title(&c->tty, c->title);
670: }
671: xfree(title);
672: }
673:
674: /* Dispatch message from client. */
675: int
676: server_client_msg_dispatch(struct client *c)
677: {
678: struct imsg imsg;
679: struct msg_command_data commanddata;
680: struct msg_identify_data identifydata;
681: struct msg_environ_data environdata;
1.73 ! nicm 682: struct msg_stdin_data stdindata;
1.1 nicm 683: ssize_t n, datalen;
684:
1.8 deraadt 685: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
686: return (-1);
1.1 nicm 687:
688: for (;;) {
689: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
690: return (-1);
691: if (n == 0)
692: return (0);
693: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
694:
695: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
696: server_write_client(c, MSG_VERSION, NULL, 0);
697: c->flags |= CLIENT_BAD;
698: imsg_free(&imsg);
699: continue;
700: }
701:
702: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
703: switch (imsg.hdr.type) {
704: case MSG_COMMAND:
705: if (datalen != sizeof commanddata)
706: fatalx("bad MSG_COMMAND size");
707: memcpy(&commanddata, imsg.data, sizeof commanddata);
708:
709: server_client_msg_command(c, &commanddata);
710: break;
711: case MSG_IDENTIFY:
712: if (datalen != sizeof identifydata)
713: fatalx("bad MSG_IDENTIFY size");
714: if (imsg.fd == -1)
715: fatalx("MSG_IDENTIFY missing fd");
716: memcpy(&identifydata, imsg.data, sizeof identifydata);
717:
718: server_client_msg_identify(c, &identifydata, imsg.fd);
719: break;
1.73 ! nicm 720: case MSG_STDIN:
! 721: if (datalen != sizeof stdindata)
! 722: fatalx("bad MSG_STDIN size");
! 723: memcpy(&stdindata, imsg.data, sizeof stdindata);
1.36 nicm 724:
1.73 ! nicm 725: if (c->stdin_callback == NULL)
! 726: break;
! 727: if (stdindata.size <= 0)
! 728: c->stdin_closed = 1;
! 729: else {
! 730: evbuffer_add(c->stdin_data, stdindata.data,
! 731: stdindata.size);
! 732: }
! 733: c->stdin_callback(c, c->stdin_closed,
! 734: c->stdin_callback_data);
1.33 nicm 735: break;
1.1 nicm 736: case MSG_RESIZE:
737: if (datalen != 0)
738: fatalx("bad MSG_RESIZE size");
739:
1.32 nicm 740: if (tty_resize(&c->tty)) {
741: recalculate_sizes();
742: server_redraw_client(c);
743: }
1.1 nicm 744: break;
745: case MSG_EXITING:
746: if (datalen != 0)
747: fatalx("bad MSG_EXITING size");
748:
749: c->session = NULL;
750: tty_close(&c->tty);
751: server_write_client(c, MSG_EXITED, NULL, 0);
752: break;
753: case MSG_WAKEUP:
754: case MSG_UNLOCK:
755: if (datalen != 0)
756: fatalx("bad MSG_WAKEUP size");
757:
758: if (!(c->flags & CLIENT_SUSPENDED))
759: break;
760: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 761:
1.11 nicm 762: if (gettimeofday(&c->activity_time, NULL) != 0)
763: fatal("gettimeofday");
1.47 nicm 764: if (c->session != NULL)
765: session_update_activity(c->session);
1.10 nicm 766:
1.1 nicm 767: tty_start_tty(&c->tty);
768: server_redraw_client(c);
769: recalculate_sizes();
770: break;
771: case MSG_ENVIRON:
772: if (datalen != sizeof environdata)
773: fatalx("bad MSG_ENVIRON size");
774: memcpy(&environdata, imsg.data, sizeof environdata);
775:
776: environdata.var[(sizeof environdata.var) - 1] = '\0';
777: if (strchr(environdata.var, '=') != NULL)
778: environ_put(&c->environ, environdata.var);
779: break;
780: case MSG_SHELL:
781: if (datalen != 0)
782: fatalx("bad MSG_SHELL size");
783:
784: server_client_msg_shell(c);
785: break;
786: default:
787: fatalx("unexpected message");
788: }
789:
790: imsg_free(&imsg);
791: }
792: }
793:
794: /* Callback to send error message to client. */
795: void printflike2
796: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
797: {
1.33 nicm 798: va_list ap;
1.1 nicm 799:
800: va_start(ap, fmt);
1.73 ! nicm 801: evbuffer_add_vprintf(ctx->cmdclient->stderr_data, fmt, ap);
1.1 nicm 802: va_end(ap);
803:
1.73 ! nicm 804: evbuffer_add(ctx->cmdclient->stderr_data, "\n", 1);
! 805: server_push_stderr(ctx->cmdclient);
1.34 nicm 806: ctx->cmdclient->retcode = 1;
1.1 nicm 807: }
808:
809: /* Callback to send print message to client. */
810: void printflike2
811: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
812: {
1.33 nicm 813: va_list ap;
1.1 nicm 814:
815: va_start(ap, fmt);
1.73 ! nicm 816: evbuffer_add_vprintf(ctx->cmdclient->stdout_data, fmt, ap);
1.1 nicm 817: va_end(ap);
818:
1.73 ! nicm 819: evbuffer_add(ctx->cmdclient->stdout_data, "\n", 1);
! 820: server_push_stdout(ctx->cmdclient);
1.1 nicm 821: }
822:
823: /* Callback to send print message to client, if not quiet. */
824: void printflike2
825: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
826: {
1.33 nicm 827: va_list ap;
1.1 nicm 828:
1.26 nicm 829: if (options_get_number(&global_options, "quiet"))
1.1 nicm 830: return;
831:
832: va_start(ap, fmt);
1.73 ! nicm 833: evbuffer_add_vprintf(ctx->cmdclient->stdout_data, fmt, ap);
1.1 nicm 834: va_end(ap);
835:
1.73 ! nicm 836: evbuffer_add(ctx->cmdclient->stdout_data, "\n", 1);
! 837: server_push_stdout(ctx->cmdclient);
1.1 nicm 838: }
839:
840: /* Handle command message. */
841: void
842: server_client_msg_command(struct client *c, struct msg_command_data *data)
843: {
1.36 nicm 844: struct cmd_ctx ctx;
845: struct cmd_list *cmdlist = NULL;
846: int argc;
847: char **argv, *cause;
1.1 nicm 848:
849: ctx.error = server_client_msg_error;
850: ctx.print = server_client_msg_print;
851: ctx.info = server_client_msg_info;
852:
853: ctx.msgdata = data;
854: ctx.curclient = NULL;
855:
856: ctx.cmdclient = c;
857:
858: argc = data->argc;
859: data->argv[(sizeof data->argv) - 1] = '\0';
860: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
861: server_client_msg_error(&ctx, "command too long");
862: goto error;
863: }
864:
865: if (argc == 0) {
866: argc = 1;
867: argv = xcalloc(1, sizeof *argv);
868: *argv = xstrdup("new-session");
869: }
870:
871: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
872: server_client_msg_error(&ctx, "%s", cause);
873: cmd_free_argv(argc, argv);
874: goto error;
875: }
876: cmd_free_argv(argc, argv);
877:
1.36 nicm 878: if (cmd_list_exec(cmdlist, &ctx) != 1)
879: c->flags |= CLIENT_EXIT;
1.1 nicm 880: cmd_list_free(cmdlist);
881: return;
882:
883: error:
884: if (cmdlist != NULL)
885: cmd_list_free(cmdlist);
1.36 nicm 886: c->flags |= CLIENT_EXIT;
1.1 nicm 887: }
888:
889: /* Handle identify message. */
890: void
891: server_client_msg_identify(
892: struct client *c, struct msg_identify_data *data, int fd)
893: {
894: c->cwd = NULL;
895: data->cwd[(sizeof data->cwd) - 1] = '\0';
896: if (*data->cwd != '\0')
897: c->cwd = xstrdup(data->cwd);
898:
1.33 nicm 899: if (!isatty(fd))
900: return;
1.1 nicm 901: data->term[(sizeof data->term) - 1] = '\0';
1.73 ! nicm 902: tty_init(&c->tty, fd, data->term);
1.1 nicm 903: if (data->flags & IDENTIFY_UTF8)
904: c->tty.flags |= TTY_UTF8;
905: if (data->flags & IDENTIFY_256COLOURS)
906: c->tty.term_flags |= TERM_256COLOURS;
907: else if (data->flags & IDENTIFY_88COLOURS)
908: c->tty.term_flags |= TERM_88COLOURS;
1.18 nicm 909: c->tty.key_callback = server_client_handle_key;
910: c->tty.key_data = c;
1.1 nicm 911:
912: tty_resize(&c->tty);
913:
914: c->flags |= CLIENT_TERMINAL;
915: }
916:
917: /* Handle shell message. */
918: void
919: server_client_msg_shell(struct client *c)
920: {
921: struct msg_shell_data data;
922: const char *shell;
1.25 nicm 923:
1.1 nicm 924: shell = options_get_string(&global_s_options, "default-shell");
925:
926: if (*shell == '\0' || areshell(shell))
927: shell = _PATH_BSHELL;
928: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
929: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
1.25 nicm 930:
1.1 nicm 931: server_write_client(c, MSG_SHELL, &data, sizeof data);
932: c->flags |= CLIENT_BAD; /* it will die after exec */
933: }
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