Annotation of src/usr.bin/tmux/server-client.c, Revision 1.77
1.77 ! nicm 1: /* $OpenBSD: server-client.c,v 1.76 2012/06/20 12:55:55 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:
1.74 nicm 31: void server_client_check_mouse(struct client *, struct window_pane *,
32: struct mouse_event *);
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:
1.75 nicm 112: if (c->flags & CLIENT_CONTROL)
113: return (0);
114:
1.72 nicm 115: if (!(c->flags & CLIENT_TERMINAL)) {
116: *cause = xstrdup ("not a terminal");
117: return (-1);
118: }
119:
120: overrides = options_get_string(oo, "terminal-overrides");
121: if (tty_open(&c->tty, overrides, cause) != 0)
122: return (-1);
123:
124: return (0);
1.1 nicm 125: }
126:
127: /* Lost a client. */
128: void
129: server_client_lost(struct client *c)
130: {
1.21 nicm 131: struct message_entry *msg;
132: u_int i;
1.1 nicm 133:
134: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
135: if (ARRAY_ITEM(&clients, i) == c)
136: ARRAY_SET(&clients, i, NULL);
137: }
138: log_debug("lost client %d", c->ibuf.fd);
139:
140: /*
141: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
142: * and tty_free might close an unrelated fd.
143: */
144: if (c->flags & CLIENT_TERMINAL)
145: tty_free(&c->tty);
146:
1.73 nicm 147: evbuffer_free (c->stdin_data);
148: evbuffer_free (c->stdout_data);
149: evbuffer_free (c->stderr_data);
1.33 nicm 150:
1.51 nicm 151: status_free_jobs(&c->status_new);
152: status_free_jobs(&c->status_old);
1.1 nicm 153: screen_free(&c->status);
154:
1.77 ! nicm 155: free(c->title);
1.1 nicm 156:
1.17 nicm 157: evtimer_del(&c->repeat_timer);
158:
1.69 nicm 159: if (event_initialized(&c->identify_timer))
160: evtimer_del(&c->identify_timer);
1.15 nicm 161:
1.77 ! nicm 162: free(c->message_string);
1.69 nicm 163: if (event_initialized (&c->message_timer))
164: evtimer_del(&c->message_timer);
1.21 nicm 165: for (i = 0; i < ARRAY_LENGTH(&c->message_log); i++) {
166: msg = &ARRAY_ITEM(&c->message_log, i);
1.77 ! nicm 167: free(msg->msg);
1.21 nicm 168: }
169: ARRAY_FREE(&c->message_log);
1.1 nicm 170:
1.77 ! nicm 171: free(c->prompt_string);
! 172: free(c->prompt_buffer);
! 173: free(c->cwd);
1.61 nicm 174:
175: environ_free(&c->environ);
1.1 nicm 176:
177: close(c->ibuf.fd);
178: imsg_clear(&c->ibuf);
1.69 nicm 179: if (event_initialized(&c->event))
180: event_del(&c->event);
1.13 nicm 181:
1.1 nicm 182: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
183: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
184: ARRAY_SET(&dead_clients, i, c);
185: break;
186: }
187: }
188: if (i == ARRAY_LENGTH(&dead_clients))
189: ARRAY_ADD(&dead_clients, c);
190: c->flags |= CLIENT_DEAD;
1.71 nicm 191:
192: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 193:
194: recalculate_sizes();
1.41 nicm 195: server_check_unattached();
1.19 nicm 196: server_update_socket();
1.9 nicm 197: }
198:
1.1 nicm 199: /* Process a single client event. */
200: void
1.12 nicm 201: server_client_callback(int fd, short events, void *data)
1.1 nicm 202: {
203: struct client *c = data;
1.7 nicm 204:
205: if (c->flags & CLIENT_DEAD)
206: return;
1.1 nicm 207:
208: if (fd == c->ibuf.fd) {
1.12 nicm 209: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 210: goto client_lost;
211:
212: if (c->flags & CLIENT_BAD) {
213: if (c->ibuf.w.queued == 0)
214: goto client_lost;
215: return;
216: }
217:
1.12 nicm 218: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 219: goto client_lost;
220: }
1.14 nicm 221:
1.73 nicm 222: server_push_stdout(c);
223: server_push_stderr(c);
224:
1.25 nicm 225: server_update_event(c);
1.1 nicm 226: return;
227:
228: client_lost:
229: server_client_lost(c);
230: }
231:
1.16 nicm 232: /* Handle client status timer. */
233: void
234: server_client_status_timer(void)
235: {
236: struct client *c;
237: struct session *s;
238: struct timeval tv;
1.20 nicm 239: u_int i;
240: int interval;
241: time_t difference;
1.16 nicm 242:
243: if (gettimeofday(&tv, NULL) != 0)
244: fatal("gettimeofday failed");
245:
246: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
247: c = ARRAY_ITEM(&clients, i);
248: if (c == NULL || c->session == NULL)
249: continue;
250: if (c->message_string != NULL || c->prompt_string != NULL) {
251: /*
252: * Don't need timed redraw for messages/prompts so bail
253: * now. The status timer isn't reset when they are
254: * redrawn anyway.
255: */
256: continue;
257: }
258: s = c->session;
259:
260: if (!options_get_number(&s->options, "status"))
261: continue;
262: interval = options_get_number(&s->options, "status-interval");
263:
1.20 nicm 264: difference = tv.tv_sec - c->status_timer.tv_sec;
265: if (difference >= interval) {
1.51 nicm 266: status_update_jobs(c);
1.16 nicm 267: c->flags |= CLIENT_STATUS;
268: }
269: }
270: }
271:
1.66 nicm 272: /* Check for mouse keys. */
273: void
274: server_client_check_mouse(
275: struct client *c, struct window_pane *wp, struct mouse_event *mouse)
276: {
277: struct session *s = c->session;
278: struct options *oo = &s->options;
279: int statusat;
280:
281: statusat = status_at_line(c);
282:
283: /* Is this a window selection click on the status line? */
284: if (statusat != -1 && mouse->y == (u_int)statusat &&
285: options_get_number(oo, "mouse-select-window")) {
286: if (mouse->b == MOUSE_UP && c->last_mouse.b != MOUSE_UP) {
287: status_set_window_at(c, mouse->x);
1.70 nicm 288: recalculate_sizes();
1.66 nicm 289: return;
290: }
291: if (mouse->b & MOUSE_45) {
292: if ((mouse->b & MOUSE_BUTTON) == MOUSE_1) {
293: session_previous(c->session, 0);
294: server_redraw_session(s);
1.70 nicm 295: recalculate_sizes();
1.66 nicm 296: }
297: if ((mouse->b & MOUSE_BUTTON) == MOUSE_2) {
298: session_next(c->session, 0);
299: server_redraw_session(s);
1.70 nicm 300: recalculate_sizes();
1.66 nicm 301: }
302: return;
303: }
1.67 nicm 304: memcpy(&c->last_mouse, mouse, sizeof c->last_mouse);
305: return;
1.66 nicm 306: }
307:
308: /*
309: * Not on status line - adjust mouse position if status line is at the
310: * top and limit if at the bottom. From here on a struct mouse
311: * represents the offset onto the window itself.
312: */
313: if (statusat == 0 &&mouse->y > 0)
314: mouse->y--;
315: else if (statusat > 0 && mouse->y >= (u_int)statusat)
316: mouse->y = statusat - 1;
317:
318: /* Is this a pane selection? Allow down only in copy mode. */
319: if (options_get_number(oo, "mouse-select-pane") &&
320: ((!(mouse->b & MOUSE_DRAG) && mouse->b != MOUSE_UP) ||
321: wp->mode != &window_copy_mode)) {
322: window_set_active_at(wp->window, mouse->x, mouse->y);
323: server_redraw_window_borders(wp->window);
324: wp = wp->window->active; /* may have changed */
325: }
326:
327: /* Check if trying to resize pane. */
328: if (options_get_number(oo, "mouse-resize-pane"))
329: layout_resize_pane_mouse(c, mouse);
330:
331: /* Update last and pass through to client. */
332: memcpy(&c->last_mouse, mouse, sizeof c->last_mouse);
333: window_pane_mouse(wp, c->session, mouse);
334: }
335:
1.18 nicm 336: /* Handle data key input from client. */
337: void
1.74 nicm 338: server_client_handle_key(struct client *c, int key)
1.18 nicm 339: {
340: struct session *s;
341: struct window *w;
342: struct window_pane *wp;
343: struct timeval tv;
344: struct key_binding *bd;
345: int xtimeout, isprefix;
346:
347: /* Check the client is good to accept input. */
348: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
349: return;
350: if (c->session == NULL)
351: return;
352: s = c->session;
353:
354: /* Update the activity timer. */
355: if (gettimeofday(&c->activity_time, NULL) != 0)
356: fatal("gettimeofday failed");
357: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
358:
359: w = c->session->curw->window;
360: wp = w->active;
361:
362: /* Special case: number keys jump to pane in identify mode. */
1.25 nicm 363: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 364: if (c->flags & CLIENT_READONLY)
365: return;
1.18 nicm 366: wp = window_pane_at_index(w, key - '0');
367: if (wp != NULL && window_pane_visible(wp))
368: window_set_active_pane(w, wp);
369: server_clear_identify(c);
370: return;
371: }
372:
373: /* Handle status line. */
1.30 nicm 374: if (!(c->flags & CLIENT_READONLY)) {
375: status_message_clear(c);
376: server_clear_identify(c);
377: }
1.18 nicm 378: if (c->prompt_string != NULL) {
1.30 nicm 379: if (!(c->flags & CLIENT_READONLY))
380: status_prompt_key(c, key);
1.18 nicm 381: return;
382: }
383:
384: /* Check for mouse keys. */
385: if (key == KEYC_MOUSE) {
1.30 nicm 386: if (c->flags & CLIENT_READONLY)
387: return;
1.74 nicm 388: server_client_check_mouse(c, wp, &c->tty.mouse);
1.18 nicm 389: return;
390: }
391:
392: /* Is this a prefix key? */
1.63 nicm 393: if (key == options_get_number(&c->session->options, "prefix"))
394: isprefix = 1;
395: else if (key == options_get_number(&c->session->options, "prefix2"))
396: isprefix = 1;
397: else
398: isprefix = 0;
1.18 nicm 399:
400: /* No previous prefix key. */
401: if (!(c->flags & CLIENT_PREFIX)) {
402: if (isprefix)
403: c->flags |= CLIENT_PREFIX;
404: else {
405: /* Try as a non-prefix key binding. */
1.30 nicm 406: if ((bd = key_bindings_lookup(key)) == NULL) {
407: if (!(c->flags & CLIENT_READONLY))
1.31 nicm 408: window_pane_key(wp, c->session, key);
1.30 nicm 409: } else
1.18 nicm 410: key_bindings_dispatch(bd, c);
411: }
412: return;
413: }
414:
415: /* Prefix key already pressed. Reset prefix and lookup key. */
416: c->flags &= ~CLIENT_PREFIX;
417: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
418: /* If repeating, treat this as a key, else ignore. */
419: if (c->flags & CLIENT_REPEAT) {
420: c->flags &= ~CLIENT_REPEAT;
421: if (isprefix)
422: c->flags |= CLIENT_PREFIX;
1.30 nicm 423: else if (!(c->flags & CLIENT_READONLY))
1.31 nicm 424: window_pane_key(wp, c->session, key);
1.18 nicm 425: }
426: return;
427: }
428:
429: /* If already repeating, but this key can't repeat, skip it. */
430: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
431: c->flags &= ~CLIENT_REPEAT;
432: if (isprefix)
433: c->flags |= CLIENT_PREFIX;
1.30 nicm 434: else if (!(c->flags & CLIENT_READONLY))
1.31 nicm 435: window_pane_key(wp, c->session, key);
1.18 nicm 436: return;
437: }
438:
439: /* If this key can repeat, reset the repeat flags and timer. */
440: xtimeout = options_get_number(&c->session->options, "repeat-time");
441: if (xtimeout != 0 && bd->can_repeat) {
442: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 443:
1.18 nicm 444: tv.tv_sec = xtimeout / 1000;
445: tv.tv_usec = (xtimeout % 1000) * 1000L;
446: evtimer_del(&c->repeat_timer);
447: evtimer_add(&c->repeat_timer, &tv);
448: }
449:
450: /* Dispatch the command. */
451: key_bindings_dispatch(bd, c);
452: }
453:
1.2 nicm 454: /* Client functions that need to happen every loop. */
455: void
456: server_client_loop(void)
457: {
458: struct client *c;
459: struct window *w;
460: struct window_pane *wp;
461: u_int i;
462:
463: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
464: c = ARRAY_ITEM(&clients, i);
1.36 nicm 465: if (c == NULL)
1.2 nicm 466: continue;
467:
1.36 nicm 468: server_client_check_exit(c);
469: if (c->session != NULL) {
470: server_client_check_redraw(c);
471: server_client_reset_state(c);
472: }
1.2 nicm 473: }
474:
475: /*
476: * Any windows will have been redrawn as part of clients, so clear
477: * their flags now.
478: */
479: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
480: w = ARRAY_ITEM(&windows, i);
481: if (w == NULL)
482: continue;
483:
484: w->flags &= ~WINDOW_REDRAW;
485: TAILQ_FOREACH(wp, &w->panes, entry)
486: wp->flags &= ~PANE_REDRAW;
487: }
488: }
489:
1.18 nicm 490: /*
491: * Update cursor position and mode settings. The scroll region and attributes
492: * are cleared when idle (waiting for an event) as this is the most likely time
493: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
494: * compromise between excessive resets and likelihood of an interrupt.
495: *
496: * tty_region/tty_reset/tty_update_mode already take care of not resetting
497: * things that are already in their default state.
498: */
1.1 nicm 499: void
1.18 nicm 500: server_client_reset_state(struct client *c)
1.1 nicm 501: {
1.18 nicm 502: struct window *w = c->session->curw->window;
503: struct window_pane *wp = w->active;
504: struct screen *s = wp->screen;
505: struct options *oo = &c->session->options;
1.54 nicm 506: struct options *wo = &w->options;
1.66 nicm 507: int status, mode, o;
1.60 nicm 508:
509: if (c->flags & CLIENT_SUSPENDED)
510: return;
1.1 nicm 511:
512: tty_region(&c->tty, 0, c->tty.sy - 1);
513:
514: status = options_get_number(oo, "status");
515: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
516: tty_cursor(&c->tty, 0, 0);
1.66 nicm 517: else {
518: o = status && options_get_number (oo, "status-position") == 0;
519: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
520: }
1.1 nicm 521:
1.50 nicm 522: /*
1.57 nicm 523: * Resizing panes with the mouse requires at least button mode to give
524: * a smooth appearance.
525: */
526: mode = s->mode;
527: if ((c->last_mouse.b & MOUSE_RESIZE_PANE) &&
528: !(mode & (MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)))
529: mode |= MODE_MOUSE_BUTTON;
530:
531: /*
1.50 nicm 532: * Any mode will do for mouse-select-pane, but set standard mode if
533: * none.
534: */
1.54 nicm 535: if ((mode & ALL_MOUSE_MODES) == 0) {
536: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
1.55 nicm 537: options_get_number(oo, "mouse-select-pane"))
1.57 nicm 538: mode |= MODE_MOUSE_STANDARD;
539: else if (options_get_number(oo, "mouse-resize-pane"))
1.54 nicm 540: mode |= MODE_MOUSE_STANDARD;
541: else if (options_get_number(oo, "mouse-select-window"))
542: mode |= MODE_MOUSE_STANDARD;
543: else if (options_get_number(wo, "mode-mouse"))
544: mode |= MODE_MOUSE_STANDARD;
545: }
1.48 nicm 546:
547: /*
548: * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
549: * user has set mouse-utf8 and any mouse mode is in effect, turn on
550: * UTF-8 mouse input. If the receiving terminal hasn't requested it
551: * (that is, it isn't in s->mode), then it'll be converted in
552: * input_mouse.
553: */
554: if ((c->tty.flags & TTY_UTF8) &&
555: (mode & ALL_MOUSE_MODES) && options_get_number(oo, "mouse-utf8"))
556: mode |= MODE_MOUSE_UTF8;
557: else
558: mode &= ~MODE_MOUSE_UTF8;
559:
560: /* Set the terminal mode and reset attributes. */
1.59 nicm 561: tty_update_mode(&c->tty, mode, s);
1.1 nicm 562: tty_reset(&c->tty);
1.17 nicm 563: }
564:
565: /* Repeat time callback. */
1.24 nicm 566: /* ARGSUSED */
1.17 nicm 567: void
568: server_client_repeat_timer(unused int fd, unused short events, void *data)
569: {
570: struct client *c = data;
571:
572: if (c->flags & CLIENT_REPEAT)
573: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.1 nicm 574: }
575:
1.36 nicm 576: /* Check if client should be exited. */
577: void
578: server_client_check_exit(struct client *c)
579: {
580: struct msg_exit_data exitdata;
581:
582: if (!(c->flags & CLIENT_EXIT))
583: return;
584:
1.73 nicm 585: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
586: return;
587: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 588: return;
1.73 nicm 589: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 590: return;
591:
592: exitdata.retcode = c->retcode;
593: server_write_client(c, MSG_EXIT, &exitdata, sizeof exitdata);
594:
595: c->flags &= ~CLIENT_EXIT;
1.38 nicm 596: }
597:
1.1 nicm 598: /* Check for client redraws. */
599: void
600: server_client_check_redraw(struct client *c)
601: {
602: struct session *s = c->session;
603: struct window_pane *wp;
604: int flags, redraw;
605:
606: flags = c->tty.flags & TTY_FREEZE;
607: c->tty.flags &= ~TTY_FREEZE;
608:
609: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
610: if (options_get_number(&s->options, "set-titles"))
611: server_client_set_title(c);
1.12 nicm 612:
1.1 nicm 613: if (c->message_string != NULL)
614: redraw = status_message_redraw(c);
615: else if (c->prompt_string != NULL)
616: redraw = status_prompt_redraw(c);
617: else
618: redraw = status_redraw(c);
619: if (!redraw)
620: c->flags &= ~CLIENT_STATUS;
621: }
622:
623: if (c->flags & CLIENT_REDRAW) {
1.27 nicm 624: screen_redraw_screen(c, 0, 0);
625: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 626: } else if (c->flags & CLIENT_REDRAWWINDOW) {
627: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
628: screen_redraw_pane(c, wp);
629: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 630: } else {
631: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
632: if (wp->flags & PANE_REDRAW)
633: screen_redraw_pane(c, wp);
634: }
635: }
636:
1.27 nicm 637: if (c->flags & CLIENT_BORDERS)
638: screen_redraw_screen(c, 0, 1);
639:
1.1 nicm 640: if (c->flags & CLIENT_STATUS)
1.27 nicm 641: screen_redraw_screen(c, 1, 0);
1.1 nicm 642:
643: c->tty.flags |= flags;
644:
1.27 nicm 645: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 646: }
647:
648: /* Set client title. */
649: void
650: server_client_set_title(struct client *c)
651: {
652: struct session *s = c->session;
653: const char *template;
654: char *title;
655:
656: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 657:
1.52 nicm 658: title = status_replace(c, NULL, NULL, NULL, template, time(NULL), 1);
1.1 nicm 659: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 ! nicm 660: free(c->title);
1.1 nicm 661: c->title = xstrdup(title);
662: tty_set_title(&c->tty, c->title);
663: }
1.77 ! nicm 664: free(title);
1.1 nicm 665: }
666:
667: /* Dispatch message from client. */
668: int
669: server_client_msg_dispatch(struct client *c)
670: {
671: struct imsg imsg;
672: struct msg_command_data commanddata;
673: struct msg_identify_data identifydata;
674: struct msg_environ_data environdata;
1.73 nicm 675: struct msg_stdin_data stdindata;
1.1 nicm 676: ssize_t n, datalen;
677:
1.8 deraadt 678: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
679: return (-1);
1.1 nicm 680:
681: for (;;) {
682: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
683: return (-1);
684: if (n == 0)
685: return (0);
686: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
687:
688: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
689: server_write_client(c, MSG_VERSION, NULL, 0);
690: c->flags |= CLIENT_BAD;
691: imsg_free(&imsg);
692: continue;
693: }
694:
695: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
696: switch (imsg.hdr.type) {
697: case MSG_COMMAND:
698: if (datalen != sizeof commanddata)
699: fatalx("bad MSG_COMMAND size");
700: memcpy(&commanddata, imsg.data, sizeof commanddata);
701:
702: server_client_msg_command(c, &commanddata);
703: break;
704: case MSG_IDENTIFY:
705: if (datalen != sizeof identifydata)
706: fatalx("bad MSG_IDENTIFY size");
707: if (imsg.fd == -1)
708: fatalx("MSG_IDENTIFY missing fd");
709: memcpy(&identifydata, imsg.data, sizeof identifydata);
710:
711: server_client_msg_identify(c, &identifydata, imsg.fd);
712: break;
1.73 nicm 713: case MSG_STDIN:
714: if (datalen != sizeof stdindata)
715: fatalx("bad MSG_STDIN size");
716: memcpy(&stdindata, imsg.data, sizeof stdindata);
1.36 nicm 717:
1.73 nicm 718: if (c->stdin_callback == NULL)
719: break;
720: if (stdindata.size <= 0)
721: c->stdin_closed = 1;
722: else {
723: evbuffer_add(c->stdin_data, stdindata.data,
724: stdindata.size);
725: }
726: c->stdin_callback(c, c->stdin_closed,
727: c->stdin_callback_data);
1.33 nicm 728: break;
1.1 nicm 729: case MSG_RESIZE:
730: if (datalen != 0)
731: fatalx("bad MSG_RESIZE size");
732:
1.32 nicm 733: if (tty_resize(&c->tty)) {
734: recalculate_sizes();
735: server_redraw_client(c);
736: }
1.1 nicm 737: break;
738: case MSG_EXITING:
739: if (datalen != 0)
740: fatalx("bad MSG_EXITING size");
741:
742: c->session = NULL;
743: tty_close(&c->tty);
744: server_write_client(c, MSG_EXITED, NULL, 0);
745: break;
746: case MSG_WAKEUP:
747: case MSG_UNLOCK:
748: if (datalen != 0)
749: fatalx("bad MSG_WAKEUP size");
750:
751: if (!(c->flags & CLIENT_SUSPENDED))
752: break;
753: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 754:
1.11 nicm 755: if (gettimeofday(&c->activity_time, NULL) != 0)
756: fatal("gettimeofday");
1.47 nicm 757: if (c->session != NULL)
758: session_update_activity(c->session);
1.10 nicm 759:
1.1 nicm 760: tty_start_tty(&c->tty);
761: server_redraw_client(c);
762: recalculate_sizes();
763: break;
764: case MSG_ENVIRON:
765: if (datalen != sizeof environdata)
766: fatalx("bad MSG_ENVIRON size");
767: memcpy(&environdata, imsg.data, sizeof environdata);
768:
769: environdata.var[(sizeof environdata.var) - 1] = '\0';
770: if (strchr(environdata.var, '=') != NULL)
771: environ_put(&c->environ, environdata.var);
772: break;
773: case MSG_SHELL:
774: if (datalen != 0)
775: fatalx("bad MSG_SHELL size");
776:
777: server_client_msg_shell(c);
778: break;
779: default:
780: fatalx("unexpected message");
781: }
782:
783: imsg_free(&imsg);
784: }
785: }
786:
787: /* Callback to send error message to client. */
788: void printflike2
789: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
790: {
1.33 nicm 791: va_list ap;
1.1 nicm 792:
793: va_start(ap, fmt);
1.73 nicm 794: evbuffer_add_vprintf(ctx->cmdclient->stderr_data, fmt, ap);
1.1 nicm 795: va_end(ap);
796:
1.73 nicm 797: evbuffer_add(ctx->cmdclient->stderr_data, "\n", 1);
798: server_push_stderr(ctx->cmdclient);
1.34 nicm 799: ctx->cmdclient->retcode = 1;
1.1 nicm 800: }
801:
802: /* Callback to send print message to client. */
803: void printflike2
804: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
805: {
1.33 nicm 806: va_list ap;
1.1 nicm 807:
808: va_start(ap, fmt);
1.73 nicm 809: evbuffer_add_vprintf(ctx->cmdclient->stdout_data, fmt, ap);
1.1 nicm 810: va_end(ap);
811:
1.73 nicm 812: evbuffer_add(ctx->cmdclient->stdout_data, "\n", 1);
813: server_push_stdout(ctx->cmdclient);
1.1 nicm 814: }
815:
816: /* Callback to send print message to client, if not quiet. */
817: void printflike2
818: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
819: {
1.33 nicm 820: va_list ap;
1.1 nicm 821:
1.26 nicm 822: if (options_get_number(&global_options, "quiet"))
1.1 nicm 823: return;
824:
825: va_start(ap, fmt);
1.73 nicm 826: evbuffer_add_vprintf(ctx->cmdclient->stdout_data, fmt, ap);
1.1 nicm 827: va_end(ap);
828:
1.73 nicm 829: evbuffer_add(ctx->cmdclient->stdout_data, "\n", 1);
830: server_push_stdout(ctx->cmdclient);
1.1 nicm 831: }
832:
833: /* Handle command message. */
834: void
835: server_client_msg_command(struct client *c, struct msg_command_data *data)
836: {
1.36 nicm 837: struct cmd_ctx ctx;
838: struct cmd_list *cmdlist = NULL;
839: int argc;
840: char **argv, *cause;
1.1 nicm 841:
842: ctx.error = server_client_msg_error;
843: ctx.print = server_client_msg_print;
844: ctx.info = server_client_msg_info;
845:
846: ctx.msgdata = data;
847: ctx.curclient = NULL;
848:
849: ctx.cmdclient = c;
850:
851: argc = data->argc;
852: data->argv[(sizeof data->argv) - 1] = '\0';
853: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
854: server_client_msg_error(&ctx, "command too long");
855: goto error;
856: }
857:
858: if (argc == 0) {
859: argc = 1;
860: argv = xcalloc(1, sizeof *argv);
861: *argv = xstrdup("new-session");
862: }
863:
864: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
865: server_client_msg_error(&ctx, "%s", cause);
866: cmd_free_argv(argc, argv);
867: goto error;
868: }
869: cmd_free_argv(argc, argv);
870:
1.36 nicm 871: if (cmd_list_exec(cmdlist, &ctx) != 1)
872: c->flags |= CLIENT_EXIT;
1.1 nicm 873: cmd_list_free(cmdlist);
874: return;
875:
876: error:
877: if (cmdlist != NULL)
878: cmd_list_free(cmdlist);
1.36 nicm 879: c->flags |= CLIENT_EXIT;
1.1 nicm 880: }
881:
882: /* Handle identify message. */
883: void
884: server_client_msg_identify(
885: struct client *c, struct msg_identify_data *data, int fd)
886: {
887: c->cwd = NULL;
888: data->cwd[(sizeof data->cwd) - 1] = '\0';
889: if (*data->cwd != '\0')
890: c->cwd = xstrdup(data->cwd);
1.75 nicm 891:
892: if (data->flags & IDENTIFY_CONTROL) {
893: c->stdin_callback = control_callback;
894: c->flags |= (CLIENT_CONTROL|CLIENT_SUSPENDED);
895:
896: c->tty.fd = -1;
897: c->tty.log_fd = -1;
898:
899: close(fd);
900: return;
901: }
1.1 nicm 902:
1.33 nicm 903: if (!isatty(fd))
904: return;
1.1 nicm 905: data->term[(sizeof data->term) - 1] = '\0';
1.74 nicm 906: tty_init(&c->tty, c, fd, data->term);
1.1 nicm 907: if (data->flags & IDENTIFY_UTF8)
908: c->tty.flags |= TTY_UTF8;
909: if (data->flags & IDENTIFY_256COLOURS)
910: c->tty.term_flags |= TERM_256COLOURS;
911: else if (data->flags & IDENTIFY_88COLOURS)
912: c->tty.term_flags |= TERM_88COLOURS;
913:
914: tty_resize(&c->tty);
915:
916: c->flags |= CLIENT_TERMINAL;
917: }
918:
919: /* Handle shell message. */
920: void
921: server_client_msg_shell(struct client *c)
922: {
923: struct msg_shell_data data;
924: const char *shell;
1.25 nicm 925:
1.1 nicm 926: shell = options_get_string(&global_s_options, "default-shell");
927:
928: if (*shell == '\0' || areshell(shell))
929: shell = _PATH_BSHELL;
930: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
931: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
1.25 nicm 932:
1.1 nicm 933: server_write_client(c, MSG_SHELL, &data, sizeof data);
934: c->flags |= CLIENT_BAD; /* it will die after exec */
935: }
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