Annotation of src/usr.bin/tmux/server-client.c, Revision 1.200
1.200 ! nicm 1: /* $OpenBSD: server-client.c,v 1.199 2016/11/15 15:17:28 nicm Exp $ */
1.1 nicm 2:
3: /*
1.181 nicm 4: * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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>
1.162 nicm 21: #include <sys/uio.h>
1.1 nicm 22:
1.114 benno 23: #include <errno.h>
1.12 nicm 24: #include <event.h>
1.1 nicm 25: #include <fcntl.h>
1.162 nicm 26: #include <imsg.h>
1.98 nicm 27: #include <paths.h>
28: #include <stdlib.h>
1.1 nicm 29: #include <string.h>
1.4 nicm 30: #include <time.h>
1.1 nicm 31: #include <unistd.h>
32:
33: #include "tmux.h"
34:
1.190 nicm 35: static void server_client_free(int, short, void *);
36: static void server_client_check_focus(struct window_pane *);
37: static void server_client_check_resize(struct window_pane *);
38: static key_code server_client_check_mouse(struct client *);
39: static void server_client_repeat_timer(int, short, void *);
1.192 nicm 40: static void server_client_click_timer(int, short, void *);
1.190 nicm 41: static void server_client_check_exit(struct client *);
42: static void server_client_check_redraw(struct client *);
43: static void server_client_set_title(struct client *);
44: static void server_client_reset_state(struct client *);
45: static int server_client_assume_paste(struct session *);
46:
47: static void server_client_dispatch(struct imsg *, void *);
48: static void server_client_dispatch_command(struct client *, struct imsg *);
49: static void server_client_dispatch_identify(struct client *, struct imsg *);
50: static void server_client_dispatch_shell(struct client *);
1.140 nicm 51:
52: /* Check if this client is inside this server. */
53: int
54: server_client_check_nested(struct client *c)
55: {
56: struct environ_entry *envent;
57: struct window_pane *wp;
58:
59: if (c->tty.path == NULL)
60: return (0);
61:
1.164 nicm 62: envent = environ_find(c->environ, "TMUX");
1.140 nicm 63: if (envent == NULL || *envent->value == '\0')
64: return (0);
65:
66: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
67: if (strcmp(wp->tty, c->tty.path) == 0)
68: return (1);
69: }
70: return (0);
71: }
1.1 nicm 72:
1.132 nicm 73: /* Set client key table. */
74: void
1.178 nicm 75: server_client_set_key_table(struct client *c, const char *name)
1.132 nicm 76: {
1.178 nicm 77: if (name == NULL)
78: name = server_client_get_key_table(c);
79:
1.132 nicm 80: key_bindings_unref_table(c->keytable);
81: c->keytable = key_bindings_get_table(name, 1);
82: c->keytable->references++;
83: }
84:
1.178 nicm 85: /* Get default key table. */
86: const char *
87: server_client_get_key_table(struct client *c)
88: {
89: struct session *s = c->session;
90: const char *name;
91:
92: if (s == NULL)
93: return ("root");
94:
95: name = options_get_string(s->options, "key-table");
96: if (*name == '\0')
97: return ("root");
98: return (name);
99: }
100:
1.191 nicm 101: /* Is this client using the default key table? */
102: int
103: server_client_is_default_key_table(struct client *c)
104: {
105: return (strcmp(c->keytable->name, server_client_get_key_table(c)) == 0);
106: }
107:
1.1 nicm 108: /* Create a new client. */
109: void
110: server_client_create(int fd)
111: {
112: struct client *c;
113:
1.49 nicm 114: setblocking(fd, 0);
1.1 nicm 115:
116: c = xcalloc(1, sizeof *c);
1.141 nicm 117: c->references = 1;
1.162 nicm 118: c->peer = proc_add_peer(server_proc, fd, server_client_dispatch, c);
1.25 nicm 119:
1.10 nicm 120: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 121: fatal("gettimeofday failed");
1.11 nicm 122: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.111 nicm 123:
1.164 nicm 124: c->environ = environ_create();
1.1 nicm 125:
1.146 nicm 126: c->fd = -1;
1.165 nicm 127: c->cwd = NULL;
1.145 nicm 128:
1.194 nicm 129: TAILQ_INIT(&c->queue);
1.94 nicm 130:
1.116 nicm 131: c->stdin_data = evbuffer_new();
132: c->stdout_data = evbuffer_new();
133: c->stderr_data = evbuffer_new();
1.33 nicm 134:
1.1 nicm 135: c->tty.fd = -1;
136: c->title = NULL;
137:
138: c->session = NULL;
1.45 nicm 139: c->last_session = NULL;
1.1 nicm 140: c->tty.sx = 80;
141: c->tty.sy = 24;
142:
143: screen_init(&c->status, c->tty.sx, 1, 0);
144:
145: c->message_string = NULL;
1.136 nicm 146: TAILQ_INIT(&c->message_log);
1.1 nicm 147:
148: c->prompt_string = NULL;
149: c->prompt_buffer = NULL;
150: c->prompt_index = 0;
151:
1.93 nicm 152: c->flags |= CLIENT_FOCUSED;
153:
1.132 nicm 154: c->keytable = key_bindings_get_table("root", 1);
155: c->keytable->references++;
156:
1.17 nicm 157: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
1.192 nicm 158: evtimer_set(&c->click_timer, server_client_click_timer, c);
1.17 nicm 159:
1.135 nicm 160: TAILQ_INSERT_TAIL(&clients, c, entry);
1.157 nicm 161: log_debug("new client %p", c);
1.72 nicm 162: }
163:
164: /* Open client terminal if needed. */
165: int
1.119 nicm 166: server_client_open(struct client *c, char **cause)
1.72 nicm 167: {
1.75 nicm 168: if (c->flags & CLIENT_CONTROL)
169: return (0);
1.120 nicm 170:
171: if (strcmp(c->ttyname, "/dev/tty") == 0) {
172: *cause = xstrdup("can't use /dev/tty");
173: return (-1);
174: }
1.75 nicm 175:
1.72 nicm 176: if (!(c->flags & CLIENT_TERMINAL)) {
1.116 nicm 177: *cause = xstrdup("not a terminal");
1.72 nicm 178: return (-1);
179: }
180:
1.119 nicm 181: if (tty_open(&c->tty, cause) != 0)
1.72 nicm 182: return (-1);
183:
184: return (0);
1.1 nicm 185: }
186:
187: /* Lost a client. */
188: void
189: server_client_lost(struct client *c)
190: {
1.136 nicm 191: struct message_entry *msg, *msg1;
1.1 nicm 192:
1.141 nicm 193: c->flags |= CLIENT_DEAD;
194:
1.187 nicm 195: server_clear_identify(c, NULL);
1.141 nicm 196: status_prompt_clear(c);
197: status_message_clear(c);
198:
199: if (c->stdin_callback != NULL)
200: c->stdin_callback(c, 1, c->stdin_callback_data);
201:
1.135 nicm 202: TAILQ_REMOVE(&clients, c, entry);
1.157 nicm 203: log_debug("lost client %p", c);
1.1 nicm 204:
205: /*
206: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
207: * and tty_free might close an unrelated fd.
208: */
209: if (c->flags & CLIENT_TERMINAL)
210: tty_free(&c->tty);
1.109 nicm 211: free(c->ttyname);
212: free(c->term);
1.1 nicm 213:
1.113 nicm 214: evbuffer_free(c->stdin_data);
215: evbuffer_free(c->stdout_data);
1.97 nicm 216: if (c->stderr_data != c->stdout_data)
1.126 nicm 217: evbuffer_free(c->stderr_data);
1.33 nicm 218:
1.148 nicm 219: if (event_initialized(&c->status_timer))
220: evtimer_del(&c->status_timer);
1.1 nicm 221: screen_free(&c->status);
222:
1.77 nicm 223: free(c->title);
1.165 nicm 224: free((void *)c->cwd);
1.1 nicm 225:
1.17 nicm 226: evtimer_del(&c->repeat_timer);
1.192 nicm 227: evtimer_del(&c->click_timer);
1.17 nicm 228:
1.132 nicm 229: key_bindings_unref_table(c->keytable);
230:
1.69 nicm 231: if (event_initialized(&c->identify_timer))
232: evtimer_del(&c->identify_timer);
1.15 nicm 233:
1.77 nicm 234: free(c->message_string);
1.116 nicm 235: if (event_initialized(&c->message_timer))
1.69 nicm 236: evtimer_del(&c->message_timer);
1.136 nicm 237: TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
1.77 nicm 238: free(msg->msg);
1.136 nicm 239: TAILQ_REMOVE(&c->message_log, msg, entry);
240: free(msg);
1.21 nicm 241: }
1.1 nicm 242:
1.77 nicm 243: free(c->prompt_string);
244: free(c->prompt_buffer);
1.61 nicm 245:
1.164 nicm 246: environ_free(c->environ);
1.1 nicm 247:
1.162 nicm 248: proc_remove_peer(c->peer);
249: c->peer = NULL;
1.13 nicm 250:
1.142 nicm 251: server_client_unref(c);
1.71 nicm 252:
253: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 254:
255: recalculate_sizes();
1.41 nicm 256: server_check_unattached();
1.19 nicm 257: server_update_socket();
1.141 nicm 258: }
259:
260: /* Remove reference from a client. */
261: void
1.142 nicm 262: server_client_unref(struct client *c)
1.141 nicm 263: {
1.157 nicm 264: log_debug("unref client %p (%d references)", c, c->references);
1.141 nicm 265:
266: c->references--;
267: if (c->references == 0)
268: event_once(-1, EV_TIMEOUT, server_client_free, c, NULL);
269: }
270:
271: /* Free dead client. */
1.190 nicm 272: static void
1.170 nicm 273: server_client_free(__unused int fd, __unused short events, void *arg)
1.141 nicm 274: {
275: struct client *c = arg;
276:
1.157 nicm 277: log_debug("free client %p (%d references)", c, c->references);
1.141 nicm 278:
1.194 nicm 279: if (!TAILQ_EMPTY(&c->queue))
280: fatalx("queue not empty");
281:
1.141 nicm 282: if (c->references == 0)
283: free(c);
1.9 nicm 284: }
285:
1.174 nicm 286: /* Detach a client. */
287: void
288: server_client_detach(struct client *c, enum msgtype msgtype)
289: {
290: struct session *s = c->session;
291:
292: if (s == NULL)
293: return;
294:
1.196 nicm 295: notify_client("client-detached", c);
1.174 nicm 296: proc_send_s(c->peer, msgtype, s->name);
297: }
298:
1.66 nicm 299: /* Check for mouse keys. */
1.190 nicm 300: static key_code
1.131 nicm 301: server_client_check_mouse(struct client *c)
1.66 nicm 302: {
1.192 nicm 303: struct session *s = c->session;
304: struct mouse_event *m = &c->tty.mouse;
305: struct window *w;
306: struct window_pane *wp;
307: u_int x, y, b;
308: int flag;
309: key_code key;
310: struct timeval tv;
311: enum { NOTYPE, DOWN, UP, DRAG, WHEEL, DOUBLE, TRIPLE } type = NOTYPE;
312: enum { NOWHERE, PANE, STATUS, BORDER } where = NOWHERE;
1.131 nicm 313:
314: log_debug("mouse %02x at %u,%u (last %u,%u) (%d)", m->b, m->x, m->y,
315: m->lx, m->ly, c->tty.mouse_drag_flag);
316:
317: /* What type of event is this? */
318: if (MOUSE_DRAG(m->b)) {
319: type = DRAG;
320: if (c->tty.mouse_drag_flag) {
321: x = m->x, y = m->y, b = m->b;
322: log_debug("drag update at %u,%u", x, y);
323: } else {
324: x = m->lx, y = m->ly, b = m->lb;
325: log_debug("drag start at %u,%u", x, y);
326: }
327: } else if (MOUSE_WHEEL(m->b)) {
328: type = WHEEL;
329: x = m->x, y = m->y, b = m->b;
330: log_debug("wheel at %u,%u", x, y);
1.200 ! nicm 331: } else if (MOUSE_RELEASE(m->b)) {
1.131 nicm 332: type = UP;
333: x = m->x, y = m->y, b = m->lb;
334: log_debug("up at %u,%u", x, y);
335: } else {
1.192 nicm 336: if (c->flags & CLIENT_DOUBLECLICK) {
337: evtimer_del(&c->click_timer);
338: c->flags &= ~CLIENT_DOUBLECLICK;
339: if (m->b == c->click_button) {
340: type = DOUBLE;
341: x = m->x, y = m->y, b = m->b;
342: log_debug("double-click at %u,%u", x, y);
343: flag = CLIENT_TRIPLECLICK;
344: goto add_timer;
345: }
346: } else if (c->flags & CLIENT_TRIPLECLICK) {
347: evtimer_del(&c->click_timer);
348: c->flags &= ~CLIENT_TRIPLECLICK;
349: if (m->b == c->click_button) {
350: type = TRIPLE;
351: x = m->x, y = m->y, b = m->b;
352: log_debug("triple-click at %u,%u", x, y);
353: goto have_event;
354: }
355: }
356:
1.131 nicm 357: type = DOWN;
358: x = m->x, y = m->y, b = m->b;
359: log_debug("down at %u,%u", x, y);
1.192 nicm 360: flag = CLIENT_DOUBLECLICK;
361:
362: add_timer:
363: if (KEYC_CLICK_TIMEOUT != 0) {
364: c->flags |= flag;
365: c->click_button = m->b;
366:
367: tv.tv_sec = KEYC_CLICK_TIMEOUT / 1000;
368: tv.tv_usec = (KEYC_CLICK_TIMEOUT % 1000) * 1000L;
369: evtimer_del(&c->click_timer);
370: evtimer_add(&c->click_timer, &tv);
371: }
1.131 nicm 372: }
1.192 nicm 373:
374: have_event:
1.131 nicm 375: if (type == NOTYPE)
1.177 nicm 376: return (KEYC_UNKNOWN);
1.131 nicm 377:
378: /* Always save the session. */
379: m->s = s->id;
380:
381: /* Is this on the status line? */
382: m->statusat = status_at_line(c);
383: if (m->statusat != -1 && y == (u_int)m->statusat) {
384: w = status_get_window_at(c, x);
385: if (w == NULL)
1.177 nicm 386: return (KEYC_UNKNOWN);
1.131 nicm 387: m->w = w->id;
388: where = STATUS;
389: } else
390: m->w = -1;
391:
392: /* Not on status line. Adjust position and check for border or pane. */
393: if (where == NOWHERE) {
394: if (m->statusat == 0 && y > 0)
395: y--;
396: else if (m->statusat > 0 && y >= (u_int)m->statusat)
397: y = m->statusat - 1;
398:
399: TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
400: if ((wp->xoff + wp->sx == x &&
401: wp->yoff <= 1 + y &&
402: wp->yoff + wp->sy >= y) ||
403: (wp->yoff + wp->sy == y &&
404: wp->xoff <= 1 + x &&
405: wp->xoff + wp->sx >= x))
406: break;
407: }
408: if (wp != NULL)
409: where = BORDER;
410: else {
411: wp = window_get_active_at(s->curw->window, x, y);
1.173 nicm 412: if (wp != NULL) {
1.131 nicm 413: where = PANE;
1.173 nicm 414: log_debug("mouse at %u,%u is on pane %%%u",
415: x, y, wp->id);
416: }
1.131 nicm 417: }
418: if (where == NOWHERE)
1.177 nicm 419: return (KEYC_UNKNOWN);
1.131 nicm 420: m->wp = wp->id;
421: m->w = wp->window->id;
422: } else
423: m->wp = -1;
424:
425: /* Stop dragging if needed. */
1.200 ! nicm 426: if (type != DRAG && type != WHEEL && c->tty.mouse_drag_flag) {
1.131 nicm 427: if (c->tty.mouse_drag_release != NULL)
428: c->tty.mouse_drag_release(c, m);
429:
430: c->tty.mouse_drag_update = NULL;
431: c->tty.mouse_drag_release = NULL;
432:
1.182 nicm 433: /*
1.183 nicm 434: * End a mouse drag by passing a MouseDragEnd key corresponding
435: * to the button that started the drag.
1.182 nicm 436: */
437: switch (c->tty.mouse_drag_flag) {
438: case 1:
439: if (where == PANE)
1.183 nicm 440: key = KEYC_MOUSEDRAGEND1_PANE;
1.182 nicm 441: if (where == STATUS)
1.183 nicm 442: key = KEYC_MOUSEDRAGEND1_STATUS;
1.182 nicm 443: if (where == BORDER)
1.183 nicm 444: key = KEYC_MOUSEDRAGEND1_BORDER;
1.182 nicm 445: break;
446: case 2:
447: if (where == PANE)
1.183 nicm 448: key = KEYC_MOUSEDRAGEND2_PANE;
1.182 nicm 449: if (where == STATUS)
1.183 nicm 450: key = KEYC_MOUSEDRAGEND2_STATUS;
1.182 nicm 451: if (where == BORDER)
1.183 nicm 452: key = KEYC_MOUSEDRAGEND2_BORDER;
1.182 nicm 453: break;
454: case 3:
455: if (where == PANE)
1.183 nicm 456: key = KEYC_MOUSEDRAGEND3_PANE;
1.182 nicm 457: if (where == STATUS)
1.183 nicm 458: key = KEYC_MOUSEDRAGEND3_STATUS;
1.182 nicm 459: if (where == BORDER)
1.183 nicm 460: key = KEYC_MOUSEDRAGEND3_BORDER;
1.182 nicm 461: break;
462: default:
463: key = KEYC_MOUSE;
464: break;
465: }
1.131 nicm 466: c->tty.mouse_drag_flag = 0;
1.182 nicm 467:
468: return (key);
1.131 nicm 469: }
470:
471: /* Convert to a key binding. */
1.177 nicm 472: key = KEYC_UNKNOWN;
1.131 nicm 473: switch (type) {
474: case NOTYPE:
475: break;
476: case DRAG:
477: if (c->tty.mouse_drag_update != NULL)
478: c->tty.mouse_drag_update(c, m);
479: else {
480: switch (MOUSE_BUTTONS(b)) {
481: case 0:
482: if (where == PANE)
483: key = KEYC_MOUSEDRAG1_PANE;
484: if (where == STATUS)
485: key = KEYC_MOUSEDRAG1_STATUS;
486: if (where == BORDER)
487: key = KEYC_MOUSEDRAG1_BORDER;
488: break;
489: case 1:
490: if (where == PANE)
491: key = KEYC_MOUSEDRAG2_PANE;
492: if (where == STATUS)
493: key = KEYC_MOUSEDRAG2_STATUS;
494: if (where == BORDER)
495: key = KEYC_MOUSEDRAG2_BORDER;
496: break;
497: case 2:
498: if (where == PANE)
499: key = KEYC_MOUSEDRAG3_PANE;
500: if (where == STATUS)
501: key = KEYC_MOUSEDRAG3_STATUS;
502: if (where == BORDER)
503: key = KEYC_MOUSEDRAG3_BORDER;
504: break;
505: }
506: }
1.66 nicm 507:
1.182 nicm 508: /*
509: * Begin a drag by setting the flag to a non-zero value that
510: * corresponds to the mouse button in use.
511: */
512: c->tty.mouse_drag_flag = MOUSE_BUTTONS(b) + 1;
1.131 nicm 513: break;
514: case WHEEL:
515: if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) {
516: if (where == PANE)
517: key = KEYC_WHEELUP_PANE;
518: if (where == STATUS)
519: key = KEYC_WHEELUP_STATUS;
520: if (where == BORDER)
521: key = KEYC_WHEELUP_BORDER;
522: } else {
523: if (where == PANE)
524: key = KEYC_WHEELDOWN_PANE;
525: if (where == STATUS)
526: key = KEYC_WHEELDOWN_STATUS;
527: if (where == BORDER)
528: key = KEYC_WHEELDOWN_BORDER;
529: }
530: break;
531: case UP:
532: switch (MOUSE_BUTTONS(b)) {
533: case 0:
534: if (where == PANE)
535: key = KEYC_MOUSEUP1_PANE;
536: if (where == STATUS)
537: key = KEYC_MOUSEUP1_STATUS;
538: if (where == BORDER)
539: key = KEYC_MOUSEUP1_BORDER;
540: break;
541: case 1:
542: if (where == PANE)
543: key = KEYC_MOUSEUP2_PANE;
544: if (where == STATUS)
545: key = KEYC_MOUSEUP2_STATUS;
546: if (where == BORDER)
547: key = KEYC_MOUSEUP2_BORDER;
548: break;
549: case 2:
550: if (where == PANE)
551: key = KEYC_MOUSEUP3_PANE;
552: if (where == STATUS)
553: key = KEYC_MOUSEUP3_STATUS;
554: if (where == BORDER)
555: key = KEYC_MOUSEUP3_BORDER;
556: break;
557: }
558: break;
559: case DOWN:
560: switch (MOUSE_BUTTONS(b)) {
561: case 0:
562: if (where == PANE)
563: key = KEYC_MOUSEDOWN1_PANE;
564: if (where == STATUS)
565: key = KEYC_MOUSEDOWN1_STATUS;
566: if (where == BORDER)
567: key = KEYC_MOUSEDOWN1_BORDER;
568: break;
569: case 1:
570: if (where == PANE)
571: key = KEYC_MOUSEDOWN2_PANE;
572: if (where == STATUS)
573: key = KEYC_MOUSEDOWN2_STATUS;
574: if (where == BORDER)
575: key = KEYC_MOUSEDOWN2_BORDER;
576: break;
577: case 2:
578: if (where == PANE)
579: key = KEYC_MOUSEDOWN3_PANE;
580: if (where == STATUS)
581: key = KEYC_MOUSEDOWN3_STATUS;
582: if (where == BORDER)
583: key = KEYC_MOUSEDOWN3_BORDER;
584: break;
1.66 nicm 585: }
1.131 nicm 586: break;
1.192 nicm 587: case DOUBLE:
588: switch (MOUSE_BUTTONS(b)) {
589: case 0:
590: if (where == PANE)
591: key = KEYC_DOUBLECLICK1_PANE;
592: if (where == STATUS)
593: key = KEYC_DOUBLECLICK1_STATUS;
594: if (where == BORDER)
595: key = KEYC_DOUBLECLICK1_BORDER;
596: break;
597: case 1:
598: if (where == PANE)
599: key = KEYC_DOUBLECLICK2_PANE;
600: if (where == STATUS)
601: key = KEYC_DOUBLECLICK2_STATUS;
602: if (where == BORDER)
603: key = KEYC_DOUBLECLICK2_BORDER;
604: break;
605: case 2:
606: if (where == PANE)
607: key = KEYC_DOUBLECLICK3_PANE;
608: if (where == STATUS)
609: key = KEYC_DOUBLECLICK3_STATUS;
610: if (where == BORDER)
611: key = KEYC_DOUBLECLICK3_BORDER;
612: break;
613: }
614: break;
615: case TRIPLE:
616: switch (MOUSE_BUTTONS(b)) {
617: case 0:
618: if (where == PANE)
619: key = KEYC_TRIPLECLICK1_PANE;
620: if (where == STATUS)
621: key = KEYC_TRIPLECLICK1_STATUS;
622: if (where == BORDER)
623: key = KEYC_TRIPLECLICK1_BORDER;
624: break;
625: case 1:
626: if (where == PANE)
627: key = KEYC_TRIPLECLICK2_PANE;
628: if (where == STATUS)
629: key = KEYC_TRIPLECLICK2_STATUS;
630: if (where == BORDER)
631: key = KEYC_TRIPLECLICK2_BORDER;
632: break;
633: case 2:
634: if (where == PANE)
635: key = KEYC_TRIPLECLICK3_PANE;
636: if (where == STATUS)
637: key = KEYC_TRIPLECLICK3_STATUS;
638: if (where == BORDER)
639: key = KEYC_TRIPLECLICK3_BORDER;
640: break;
641: }
642: break;
1.66 nicm 643: }
1.177 nicm 644: if (key == KEYC_UNKNOWN)
645: return (KEYC_UNKNOWN);
1.66 nicm 646:
1.131 nicm 647: /* Apply modifiers if any. */
648: if (b & MOUSE_MASK_META)
649: key |= KEYC_ESCAPE;
650: if (b & MOUSE_MASK_CTRL)
651: key |= KEYC_CTRL;
652: if (b & MOUSE_MASK_SHIFT)
653: key |= KEYC_SHIFT;
1.66 nicm 654:
1.131 nicm 655: return (key);
1.66 nicm 656: }
657:
1.82 nicm 658: /* Is this fast enough to probably be a paste? */
1.190 nicm 659: static int
1.82 nicm 660: server_client_assume_paste(struct session *s)
661: {
662: struct timeval tv;
1.84 nicm 663: int t;
1.82 nicm 664:
1.163 nicm 665: if ((t = options_get_number(s->options, "assume-paste-time")) == 0)
1.83 nicm 666: return (0);
1.82 nicm 667:
668: timersub(&s->activity_time, &s->last_activity_time, &tv);
1.171 nicm 669: if (tv.tv_sec == 0 && tv.tv_usec < t * 1000) {
670: log_debug("session %s pasting (flag %d)", s->name,
671: !!(s->flags & SESSION_PASTING));
672: if (s->flags & SESSION_PASTING)
673: return (1);
674: s->flags |= SESSION_PASTING;
675: return (0);
676: }
677: log_debug("session %s not pasting", s->name);
678: s->flags &= ~SESSION_PASTING;
1.83 nicm 679: return (0);
1.82 nicm 680: }
681:
1.18 nicm 682: /* Handle data key input from client. */
683: void
1.168 nicm 684: server_client_handle_key(struct client *c, key_code key)
1.18 nicm 685: {
1.131 nicm 686: struct mouse_event *m = &c->tty.mouse;
1.132 nicm 687: struct session *s = c->session;
1.18 nicm 688: struct window *w;
689: struct window_pane *wp;
690: struct timeval tv;
1.191 nicm 691: const char *name;
1.156 nicm 692: struct key_table *table;
1.132 nicm 693: struct key_binding bd_find, *bd;
694: int xtimeout;
1.18 nicm 695:
696: /* Check the client is good to accept input. */
1.132 nicm 697: if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
1.18 nicm 698: return;
1.132 nicm 699: w = s->curw->window;
1.191 nicm 700: if (KEYC_IS_MOUSE(key))
701: wp = cmd_mouse_pane(m, NULL, NULL);
702: else
703: wp = w->active;
1.18 nicm 704:
705: /* Update the activity timer. */
706: if (gettimeofday(&c->activity_time, NULL) != 0)
707: fatal("gettimeofday failed");
1.149 nicm 708: session_update_activity(s, &c->activity_time);
1.18 nicm 709:
1.132 nicm 710: /* Number keys jump to pane in identify mode. */
1.25 nicm 711: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 712: if (c->flags & CLIENT_READONLY)
713: return;
1.95 nicm 714: window_unzoom(w);
1.18 nicm 715: wp = window_pane_at_index(w, key - '0');
1.187 nicm 716: if (wp != NULL && !window_pane_visible(wp))
717: wp = NULL;
718: server_clear_identify(c, wp);
1.18 nicm 719: return;
720: }
721:
722: /* Handle status line. */
1.30 nicm 723: if (!(c->flags & CLIENT_READONLY)) {
724: status_message_clear(c);
1.187 nicm 725: server_clear_identify(c, NULL);
1.30 nicm 726: }
1.18 nicm 727: if (c->prompt_string != NULL) {
1.193 nicm 728: if (c->flags & CLIENT_READONLY)
729: return;
730: if (status_prompt_key(c, key) == 0)
731: return;
1.18 nicm 732: }
733:
734: /* Check for mouse keys. */
735: if (key == KEYC_MOUSE) {
1.30 nicm 736: if (c->flags & CLIENT_READONLY)
737: return;
1.131 nicm 738: key = server_client_check_mouse(c);
1.177 nicm 739: if (key == KEYC_UNKNOWN)
1.131 nicm 740: return;
741:
742: m->valid = 1;
743: m->key = key;
744:
1.163 nicm 745: if (!options_get_number(s->options, "mouse"))
1.161 nicm 746: goto forward;
1.131 nicm 747: } else
748: m->valid = 0;
1.18 nicm 749:
1.132 nicm 750: /* Treat everything as a regular key when pasting is detected. */
1.161 nicm 751: if (!KEYC_IS_MOUSE(key) && server_client_assume_paste(s))
752: goto forward;
1.18 nicm 753:
1.132 nicm 754: retry:
1.191 nicm 755: /*
756: * Work out the current key table. If the pane is in a mode, use
757: * the mode table instead of the default key table.
758: */
759: name = NULL;
760: if (wp != NULL && wp->mode != NULL && wp->mode->key_table != NULL)
761: name = wp->mode->key_table(wp);
762: if (name == NULL || !server_client_is_default_key_table(c))
763: table = c->keytable;
764: else
765: table = key_bindings_get_table(name, 1);
766:
1.132 nicm 767: /* Try to see if there is a key binding in the current table. */
768: bd_find.key = key;
1.191 nicm 769: bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
1.132 nicm 770: if (bd != NULL) {
771: /*
772: * Key was matched in this table. If currently repeating but a
773: * non-repeating binding was found, stop repeating and try
774: * again in the root table.
775: */
776: if ((c->flags & CLIENT_REPEAT) && !bd->can_repeat) {
1.178 nicm 777: server_client_set_key_table(c, NULL);
1.132 nicm 778: c->flags &= ~CLIENT_REPEAT;
1.85 nicm 779: server_status_client(c);
1.132 nicm 780: goto retry;
1.18 nicm 781: }
1.82 nicm 782:
1.132 nicm 783: /*
784: * Take a reference to this table to make sure the key binding
785: * doesn't disappear.
786: */
787: table->references++;
788:
789: /*
790: * If this is a repeating key, start the timer. Otherwise reset
791: * the client back to the root table.
792: */
1.163 nicm 793: xtimeout = options_get_number(s->options, "repeat-time");
1.132 nicm 794: if (xtimeout != 0 && bd->can_repeat) {
795: c->flags |= CLIENT_REPEAT;
796:
797: tv.tv_sec = xtimeout / 1000;
798: tv.tv_usec = (xtimeout % 1000) * 1000L;
799: evtimer_del(&c->repeat_timer);
800: evtimer_add(&c->repeat_timer, &tv);
801: } else {
1.18 nicm 802: c->flags &= ~CLIENT_REPEAT;
1.178 nicm 803: server_client_set_key_table(c, NULL);
1.18 nicm 804: }
1.132 nicm 805: server_status_client(c);
806:
807: /* Dispatch the key binding. */
808: key_bindings_dispatch(bd, c, m);
809: key_bindings_unref_table(table);
1.18 nicm 810: return;
811: }
812:
1.132 nicm 813: /*
814: * No match in this table. If repeating, switch the client back to the
815: * root table and try again.
816: */
817: if (c->flags & CLIENT_REPEAT) {
1.178 nicm 818: server_client_set_key_table(c, NULL);
1.18 nicm 819: c->flags &= ~CLIENT_REPEAT;
1.132 nicm 820: server_status_client(c);
821: goto retry;
1.18 nicm 822: }
823:
1.132 nicm 824: /* If no match and we're not in the root table, that's it. */
1.191 nicm 825: if (name == NULL && !server_client_is_default_key_table(c)) {
1.178 nicm 826: server_client_set_key_table(c, NULL);
1.132 nicm 827: server_status_client(c);
828: return;
1.18 nicm 829: }
830:
1.132 nicm 831: /*
832: * No match, but in the root table. Prefix switches to the prefix table
833: * and everything else is passed through.
834: */
1.168 nicm 835: if (key == (key_code)options_get_number(s->options, "prefix") ||
836: key == (key_code)options_get_number(s->options, "prefix2")) {
1.178 nicm 837: server_client_set_key_table(c, "prefix");
1.132 nicm 838: server_status_client(c);
1.161 nicm 839: return;
840: }
841:
842: forward:
843: if (c->flags & CLIENT_READONLY)
844: return;
845: if (wp != NULL)
1.132 nicm 846: window_pane_key(wp, c, s, key, m);
1.18 nicm 847: }
848:
1.2 nicm 849: /* Client functions that need to happen every loop. */
850: void
851: server_client_loop(void)
852: {
853: struct client *c;
854: struct window *w;
855: struct window_pane *wp;
1.197 nicm 856: int focus;
1.2 nicm 857:
1.135 nicm 858: TAILQ_FOREACH(c, &clients, entry) {
1.36 nicm 859: server_client_check_exit(c);
860: if (c->session != NULL) {
861: server_client_check_redraw(c);
862: server_client_reset_state(c);
863: }
1.2 nicm 864: }
865:
866: /*
867: * Any windows will have been redrawn as part of clients, so clear
1.92 nicm 868: * their flags now. Also check pane focus and resize.
1.2 nicm 869: */
1.197 nicm 870: focus = options_get_number(global_options, "focus-events");
1.134 nicm 871: RB_FOREACH(w, windows, &windows) {
1.2 nicm 872: w->flags &= ~WINDOW_REDRAW;
1.91 nicm 873: TAILQ_FOREACH(wp, &w->panes, entry) {
1.101 nicm 874: if (wp->fd != -1) {
1.197 nicm 875: if (focus)
876: server_client_check_focus(wp);
1.101 nicm 877: server_client_check_resize(wp);
878: }
1.2 nicm 879: wp->flags &= ~PANE_REDRAW;
1.91 nicm 880: }
1.150 nicm 881: check_window_name(w);
1.2 nicm 882: }
1.92 nicm 883: }
884:
1.188 nicm 885: static void
886: server_client_resize_event(__unused int fd, __unused short events, void *data)
1.92 nicm 887: {
1.188 nicm 888: struct window_pane *wp = data;
889: struct winsize ws;
890:
891: evtimer_del(&wp->resize_timer);
1.92 nicm 892:
1.101 nicm 893: if (!(wp->flags & PANE_RESIZE))
1.92 nicm 894: return;
895:
896: memset(&ws, 0, sizeof ws);
897: ws.ws_col = wp->sx;
898: ws.ws_row = wp->sy;
899:
1.100 nicm 900: if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
1.92 nicm 901: fatal("ioctl failed");
902:
903: wp->flags &= ~PANE_RESIZE;
1.188 nicm 904: }
905:
906: /* Check if pane should be resized. */
1.190 nicm 907: static void
1.188 nicm 908: server_client_check_resize(struct window_pane *wp)
909: {
910: struct timeval tv = { .tv_usec = 250000 };
911:
912: if (!(wp->flags & PANE_RESIZE))
913: return;
914:
915: if (!event_initialized(&wp->resize_timer))
916: evtimer_set(&wp->resize_timer, server_client_resize_event, wp);
917:
918: /*
919: * The first resize should happen immediately, so if the timer is not
920: * running, do it now.
921: */
922: if (!evtimer_pending(&wp->resize_timer, NULL))
923: server_client_resize_event(-1, 0, wp);
924:
925: /*
926: * If the pane is in the alternate screen, let the timer expire and
927: * resize to give the application a chance to redraw. If not, keep
928: * pushing the timer back.
929: */
930: if (wp->saved_grid != NULL && evtimer_pending(&wp->resize_timer, NULL))
931: return;
932: evtimer_del(&wp->resize_timer);
933: evtimer_add(&wp->resize_timer, &tv);
1.91 nicm 934: }
935:
936: /* Check whether pane should be focused. */
1.190 nicm 937: static void
1.91 nicm 938: server_client_check_focus(struct window_pane *wp)
939: {
1.93 nicm 940: struct client *c;
1.102 nicm 941: int push;
942:
943: /* Do we need to push the focus state? */
944: push = wp->flags & PANE_FOCUSPUSH;
945: wp->flags &= ~PANE_FOCUSPUSH;
1.91 nicm 946:
947: /* If we don't care about focus, forget it. */
948: if (!(wp->base.mode & MODE_FOCUSON))
949: return;
950:
951: /* If we're not the active pane in our window, we're not focused. */
952: if (wp->window->active != wp)
953: goto not_focused;
954:
955: /* If we're in a mode, we're not focused. */
956: if (wp->screen != &wp->base)
957: goto not_focused;
958:
959: /*
1.93 nicm 960: * If our window is the current window in any focused clients with an
961: * attached session, we're focused.
1.91 nicm 962: */
1.135 nicm 963: TAILQ_FOREACH(c, &clients, entry) {
964: if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
1.91 nicm 965: continue;
1.93 nicm 966: if (c->session->flags & SESSION_UNATTACHED)
967: continue;
968:
969: if (c->session->curw->window == wp->window)
1.91 nicm 970: goto focused;
971: }
972:
973: not_focused:
1.102 nicm 974: if (push || (wp->flags & PANE_FOCUSED))
1.91 nicm 975: bufferevent_write(wp->event, "\033[O", 3);
976: wp->flags &= ~PANE_FOCUSED;
977: return;
978:
979: focused:
1.102 nicm 980: if (push || !(wp->flags & PANE_FOCUSED))
1.91 nicm 981: bufferevent_write(wp->event, "\033[I", 3);
982: wp->flags |= PANE_FOCUSED;
1.2 nicm 983: }
984:
1.18 nicm 985: /*
986: * Update cursor position and mode settings. The scroll region and attributes
987: * are cleared when idle (waiting for an event) as this is the most likely time
988: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
989: * compromise between excessive resets and likelihood of an interrupt.
990: *
991: * tty_region/tty_reset/tty_update_mode already take care of not resetting
992: * things that are already in their default state.
993: */
1.190 nicm 994: static void
1.18 nicm 995: server_client_reset_state(struct client *c)
1.1 nicm 996: {
1.18 nicm 997: struct window *w = c->session->curw->window;
998: struct window_pane *wp = w->active;
999: struct screen *s = wp->screen;
1.163 nicm 1000: struct options *oo = c->session->options;
1.66 nicm 1001: int status, mode, o;
1.60 nicm 1002:
1.186 nicm 1003: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.86 nicm 1004: return;
1005:
1.199 nicm 1006: tty_region_off(&c->tty);
1007: tty_margin_off(&c->tty);
1.1 nicm 1008:
1009: status = options_get_number(oo, "status");
1010: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
1011: tty_cursor(&c->tty, 0, 0);
1.66 nicm 1012: else {
1.126 nicm 1013: o = status && options_get_number(oo, "status-position") == 0;
1.66 nicm 1014: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
1015: }
1.1 nicm 1016:
1.50 nicm 1017: /*
1.131 nicm 1018: * Set mouse mode if requested. To support dragging, always use button
1019: * mode.
1.57 nicm 1020: */
1021: mode = s->mode;
1.131 nicm 1022: if (options_get_number(oo, "mouse"))
1023: mode = (mode & ~ALL_MOUSE_MODES) | MODE_MOUSE_BUTTON;
1.48 nicm 1024:
1025: /* Set the terminal mode and reset attributes. */
1.59 nicm 1026: tty_update_mode(&c->tty, mode, s);
1.1 nicm 1027: tty_reset(&c->tty);
1.17 nicm 1028: }
1029:
1030: /* Repeat time callback. */
1.190 nicm 1031: static void
1.170 nicm 1032: server_client_repeat_timer(__unused int fd, __unused short events, void *data)
1.17 nicm 1033: {
1034: struct client *c = data;
1035:
1.85 nicm 1036: if (c->flags & CLIENT_REPEAT) {
1.178 nicm 1037: server_client_set_key_table(c, NULL);
1.132 nicm 1038: c->flags &= ~CLIENT_REPEAT;
1039: server_status_client(c);
1.85 nicm 1040: }
1.192 nicm 1041: }
1042:
1043: /* Double-click callback. */
1044: static void
1045: server_client_click_timer(__unused int fd, __unused short events, void *data)
1046: {
1047: struct client *c = data;
1048:
1049: c->flags &= ~(CLIENT_DOUBLECLICK|CLIENT_TRIPLECLICK);
1.1 nicm 1050: }
1051:
1.36 nicm 1052: /* Check if client should be exited. */
1.190 nicm 1053: static void
1.36 nicm 1054: server_client_check_exit(struct client *c)
1055: {
1056: if (!(c->flags & CLIENT_EXIT))
1057: return;
1058:
1.73 nicm 1059: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
1060: return;
1061: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 1062: return;
1.73 nicm 1063: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 1064: return;
1065:
1.162 nicm 1066: proc_send(c->peer, MSG_EXIT, -1, &c->retval, sizeof c->retval);
1.36 nicm 1067: c->flags &= ~CLIENT_EXIT;
1.38 nicm 1068: }
1069:
1.1 nicm 1070: /* Check for client redraws. */
1.190 nicm 1071: static void
1.1 nicm 1072: server_client_check_redraw(struct client *c)
1073: {
1074: struct session *s = c->session;
1.137 nicm 1075: struct tty *tty = &c->tty;
1.1 nicm 1076: struct window_pane *wp;
1.189 nicm 1077: int flags, masked;
1.1 nicm 1078:
1.86 nicm 1079: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79 nicm 1080: return;
1081:
1.1 nicm 1082: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
1.163 nicm 1083: if (options_get_number(s->options, "set-titles"))
1.1 nicm 1084: server_client_set_title(c);
1.189 nicm 1085: screen_redraw_update(c); /* will adjust flags */
1.1 nicm 1086: }
1087:
1.137 nicm 1088: flags = tty->flags & (TTY_FREEZE|TTY_NOCURSOR);
1089: tty->flags = (tty->flags & ~TTY_FREEZE) | TTY_NOCURSOR;
1090:
1.1 nicm 1091: if (c->flags & CLIENT_REDRAW) {
1.137 nicm 1092: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 1093: screen_redraw_screen(c, 1, 1, 1);
1.27 nicm 1094: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 1095: } else if (c->flags & CLIENT_REDRAWWINDOW) {
1.137 nicm 1096: tty_update_mode(tty, tty->mode, NULL);
1.38 nicm 1097: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
1098: screen_redraw_pane(c, wp);
1099: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 1100: } else {
1101: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
1.137 nicm 1102: if (wp->flags & PANE_REDRAW) {
1103: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 1104: screen_redraw_pane(c, wp);
1.137 nicm 1105: }
1.1 nicm 1106: }
1107: }
1108:
1.185 nicm 1109: masked = c->flags & (CLIENT_BORDERS|CLIENT_STATUS);
1110: if (masked != 0)
1.137 nicm 1111: tty_update_mode(tty, tty->mode, NULL);
1.185 nicm 1112: if (masked == CLIENT_BORDERS)
1.115 nicm 1113: screen_redraw_screen(c, 0, 0, 1);
1.185 nicm 1114: else if (masked == CLIENT_STATUS)
1.115 nicm 1115: screen_redraw_screen(c, 0, 1, 0);
1.185 nicm 1116: else if (masked != 0)
1117: screen_redraw_screen(c, 0, 1, 1);
1.1 nicm 1118:
1.137 nicm 1119: tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags;
1120: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 1121:
1.153 nicm 1122: c->flags &= ~(CLIENT_REDRAW|CLIENT_BORDERS|CLIENT_STATUS|
1123: CLIENT_STATUSFORCE);
1.1 nicm 1124: }
1125:
1126: /* Set client title. */
1.190 nicm 1127: static void
1.1 nicm 1128: server_client_set_title(struct client *c)
1129: {
1.128 nicm 1130: struct session *s = c->session;
1131: const char *template;
1132: char *title;
1133: struct format_tree *ft;
1.1 nicm 1134:
1.163 nicm 1135: template = options_get_string(s->options, "set-titles-string");
1.25 nicm 1136:
1.176 nicm 1137: ft = format_create(NULL, 0);
1.128 nicm 1138: format_defaults(ft, c, NULL, NULL, NULL);
1139:
1140: title = format_expand_time(ft, template, time(NULL));
1.1 nicm 1141: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 nicm 1142: free(c->title);
1.1 nicm 1143: c->title = xstrdup(title);
1144: tty_set_title(&c->tty, c->title);
1145: }
1.77 nicm 1146: free(title);
1.128 nicm 1147:
1148: format_free(ft);
1.1 nicm 1149: }
1150:
1151: /* Dispatch message from client. */
1.190 nicm 1152: static void
1.162 nicm 1153: server_client_dispatch(struct imsg *imsg, void *arg)
1.1 nicm 1154: {
1.162 nicm 1155: struct client *c = arg;
1.73 nicm 1156: struct msg_stdin_data stdindata;
1.108 nicm 1157: const char *data;
1.162 nicm 1158: ssize_t datalen;
1.149 nicm 1159: struct session *s;
1.1 nicm 1160:
1.162 nicm 1161: if (c->flags & CLIENT_DEAD)
1162: return;
1163:
1164: if (imsg == NULL) {
1165: server_client_lost(c);
1166: return;
1167: }
1.1 nicm 1168:
1.162 nicm 1169: data = imsg->data;
1170: datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1.1 nicm 1171:
1.162 nicm 1172: switch (imsg->hdr.type) {
1173: case MSG_IDENTIFY_FLAGS:
1174: case MSG_IDENTIFY_TERM:
1175: case MSG_IDENTIFY_TTYNAME:
1176: case MSG_IDENTIFY_CWD:
1177: case MSG_IDENTIFY_STDIN:
1178: case MSG_IDENTIFY_ENVIRON:
1179: case MSG_IDENTIFY_CLIENTPID:
1180: case MSG_IDENTIFY_DONE:
1181: server_client_dispatch_identify(c, imsg);
1182: break;
1183: case MSG_COMMAND:
1184: server_client_dispatch_command(c, imsg);
1185: break;
1186: case MSG_STDIN:
1187: if (datalen != sizeof stdindata)
1188: fatalx("bad MSG_STDIN size");
1189: memcpy(&stdindata, data, sizeof stdindata);
1.36 nicm 1190:
1.162 nicm 1191: if (c->stdin_callback == NULL)
1.33 nicm 1192: break;
1.162 nicm 1193: if (stdindata.size <= 0)
1194: c->stdin_closed = 1;
1195: else {
1196: evbuffer_add(c->stdin_data, stdindata.data,
1197: stdindata.size);
1198: }
1199: c->stdin_callback(c, c->stdin_closed,
1200: c->stdin_callback_data);
1201: break;
1202: case MSG_RESIZE:
1203: if (datalen != 0)
1204: fatalx("bad MSG_RESIZE size");
1.1 nicm 1205:
1.162 nicm 1206: if (c->flags & CLIENT_CONTROL)
1.1 nicm 1207: break;
1.162 nicm 1208: if (tty_resize(&c->tty)) {
1209: recalculate_sizes();
1210: server_redraw_client(c);
1211: }
1.174 nicm 1212: if (c->session != NULL)
1.196 nicm 1213: notify_client("client-resized", c);
1.162 nicm 1214: break;
1215: case MSG_EXITING:
1216: if (datalen != 0)
1217: fatalx("bad MSG_EXITING size");
1.1 nicm 1218:
1.162 nicm 1219: c->session = NULL;
1220: tty_close(&c->tty);
1221: proc_send(c->peer, MSG_EXITED, -1, NULL, 0);
1222: break;
1223: case MSG_WAKEUP:
1224: case MSG_UNLOCK:
1225: if (datalen != 0)
1226: fatalx("bad MSG_WAKEUP size");
1.121 nicm 1227:
1.162 nicm 1228: if (!(c->flags & CLIENT_SUSPENDED))
1229: break;
1230: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 1231:
1.162 nicm 1232: if (c->tty.fd == -1) /* exited in the meantime */
1.1 nicm 1233: break;
1.162 nicm 1234: s = c->session;
1.1 nicm 1235:
1.162 nicm 1236: if (gettimeofday(&c->activity_time, NULL) != 0)
1237: fatal("gettimeofday failed");
1238:
1239: tty_start_tty(&c->tty);
1240: server_redraw_client(c);
1241: recalculate_sizes();
1.184 nicm 1242:
1243: if (s != NULL)
1244: session_update_activity(s, &c->activity_time);
1.162 nicm 1245: break;
1246: case MSG_SHELL:
1247: if (datalen != 0)
1248: fatalx("bad MSG_SHELL size");
1.1 nicm 1249:
1.162 nicm 1250: server_client_dispatch_shell(c);
1251: break;
1.1 nicm 1252: }
1253: }
1254:
1.194 nicm 1255: /* Callback when command is done. */
1256: static enum cmd_retval
1.195 nicm 1257: server_client_command_done(struct cmdq_item *item, __unused void *data)
1.194 nicm 1258: {
1.195 nicm 1259: struct client *c = item->client;
1.194 nicm 1260:
1261: if (~c->flags & CLIENT_ATTACHED)
1262: c->flags |= CLIENT_EXIT;
1263: return (CMD_RETURN_NORMAL);
1264: }
1265:
1266: /* Show an error message. */
1267: static enum cmd_retval
1.195 nicm 1268: server_client_command_error(struct cmdq_item *item, void *data)
1.194 nicm 1269: {
1270: char *error = data;
1271:
1.195 nicm 1272: cmdq_error(item, "%s", error);
1.194 nicm 1273: free(error);
1274:
1275: return (CMD_RETURN_NORMAL);
1276: }
1277:
1.1 nicm 1278: /* Handle command message. */
1.190 nicm 1279: static void
1.162 nicm 1280: server_client_dispatch_command(struct client *c, struct imsg *imsg)
1.1 nicm 1281: {
1.108 nicm 1282: struct msg_command_data data;
1283: char *buf;
1284: size_t len;
1285: struct cmd_list *cmdlist = NULL;
1286: int argc;
1287: char **argv, *cause;
1288:
1289: if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data)
1290: fatalx("bad MSG_COMMAND size");
1291: memcpy(&data, imsg->data, sizeof data);
1292:
1.124 nicm 1293: buf = (char *)imsg->data + sizeof data;
1.108 nicm 1294: len = imsg->hdr.len - IMSG_HEADER_SIZE - sizeof data;
1295: if (len > 0 && buf[len - 1] != '\0')
1296: fatalx("bad MSG_COMMAND string");
1297:
1298: argc = data.argc;
1299: if (cmd_unpack_argv(buf, len, argc, &argv) != 0) {
1.194 nicm 1300: cause = xstrdup("command too long");
1.1 nicm 1301: goto error;
1302: }
1303:
1304: if (argc == 0) {
1305: argc = 1;
1306: argv = xcalloc(1, sizeof *argv);
1307: *argv = xstrdup("new-session");
1308: }
1309:
1.94 nicm 1310: if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) {
1.1 nicm 1311: cmd_free_argv(argc, argv);
1312: goto error;
1313: }
1314: cmd_free_argv(argc, argv);
1315:
1.194 nicm 1316: cmdq_append(c, cmdq_get_command(cmdlist, NULL, NULL, 0));
1317: cmdq_append(c, cmdq_get_callback(server_client_command_done, NULL));
1.1 nicm 1318: cmd_list_free(cmdlist);
1319: return;
1320:
1321: error:
1.194 nicm 1322: cmdq_append(c, cmdq_get_callback(server_client_command_error, cause));
1323:
1.1 nicm 1324: if (cmdlist != NULL)
1325: cmd_list_free(cmdlist);
1.88 nicm 1326:
1.36 nicm 1327: c->flags |= CLIENT_EXIT;
1.1 nicm 1328: }
1329:
1330: /* Handle identify message. */
1.190 nicm 1331: static void
1.162 nicm 1332: server_client_dispatch_identify(struct client *c, struct imsg *imsg)
1.1 nicm 1333: {
1.165 nicm 1334: const char *data, *home;
1.109 nicm 1335: size_t datalen;
1336: int flags;
1337:
1338: if (c->flags & CLIENT_IDENTIFIED)
1339: fatalx("out-of-order identify message");
1340:
1341: data = imsg->data;
1342: datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1343:
1344: switch (imsg->hdr.type) {
1345: case MSG_IDENTIFY_FLAGS:
1346: if (datalen != sizeof flags)
1347: fatalx("bad MSG_IDENTIFY_FLAGS size");
1348: memcpy(&flags, data, sizeof flags);
1349: c->flags |= flags;
1.158 nicm 1350: log_debug("client %p IDENTIFY_FLAGS %#x", c, flags);
1.109 nicm 1351: break;
1352: case MSG_IDENTIFY_TERM:
1.110 nicm 1353: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1354: fatalx("bad MSG_IDENTIFY_TERM string");
1355: c->term = xstrdup(data);
1.158 nicm 1356: log_debug("client %p IDENTIFY_TERM %s", c, data);
1.109 nicm 1357: break;
1358: case MSG_IDENTIFY_TTYNAME:
1.110 nicm 1359: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1360: fatalx("bad MSG_IDENTIFY_TTYNAME string");
1361: c->ttyname = xstrdup(data);
1.158 nicm 1362: log_debug("client %p IDENTIFY_TTYNAME %s", c, data);
1.109 nicm 1363: break;
1364: case MSG_IDENTIFY_CWD:
1.155 nicm 1365: if (datalen == 0 || data[datalen - 1] != '\0')
1366: fatalx("bad MSG_IDENTIFY_CWD string");
1.165 nicm 1367: if (access(data, X_OK) == 0)
1368: c->cwd = xstrdup(data);
1369: else if ((home = find_home()) != NULL)
1370: c->cwd = xstrdup(home);
1371: else
1372: c->cwd = xstrdup("/");
1.158 nicm 1373: log_debug("client %p IDENTIFY_CWD %s", c, data);
1.109 nicm 1374: break;
1375: case MSG_IDENTIFY_STDIN:
1376: if (datalen != 0)
1377: fatalx("bad MSG_IDENTIFY_STDIN size");
1378: c->fd = imsg->fd;
1.158 nicm 1379: log_debug("client %p IDENTIFY_STDIN %d", c, imsg->fd);
1.109 nicm 1380: break;
1381: case MSG_IDENTIFY_ENVIRON:
1.110 nicm 1382: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1383: fatalx("bad MSG_IDENTIFY_ENVIRON string");
1384: if (strchr(data, '=') != NULL)
1.164 nicm 1385: environ_put(c->environ, data);
1.158 nicm 1386: log_debug("client %p IDENTIFY_ENVIRON %s", c, data);
1.143 nicm 1387: break;
1388: case MSG_IDENTIFY_CLIENTPID:
1389: if (datalen != sizeof c->pid)
1390: fatalx("bad MSG_IDENTIFY_CLIENTPID size");
1391: memcpy(&c->pid, data, sizeof c->pid);
1.158 nicm 1392: log_debug("client %p IDENTIFY_CLIENTPID %ld", c, (long)c->pid);
1.109 nicm 1393: break;
1394: default:
1395: break;
1396: }
1397:
1398: if (imsg->hdr.type != MSG_IDENTIFY_DONE)
1399: return;
1400: c->flags |= CLIENT_IDENTIFIED;
1.75 nicm 1401:
1.109 nicm 1402: if (c->flags & CLIENT_CONTROL) {
1.75 nicm 1403: c->stdin_callback = control_callback;
1.109 nicm 1404:
1.97 nicm 1405: evbuffer_free(c->stderr_data);
1406: c->stderr_data = c->stdout_data;
1.109 nicm 1407:
1408: if (c->flags & CLIENT_CONTROLCONTROL)
1.96 nicm 1409: evbuffer_add_printf(c->stdout_data, "\033P1000p");
1.162 nicm 1410: proc_send(c->peer, MSG_STDIN, -1, NULL, 0);
1.75 nicm 1411:
1412: c->tty.fd = -1;
1413:
1.109 nicm 1414: close(c->fd);
1415: c->fd = -1;
1416:
1.75 nicm 1417: return;
1418: }
1.1 nicm 1419:
1.109 nicm 1420: if (c->fd == -1)
1.104 nicm 1421: return;
1.145 nicm 1422: if (tty_init(&c->tty, c, c->fd, c->term) != 0) {
1.109 nicm 1423: close(c->fd);
1424: c->fd = -1;
1.80 nicm 1425: return;
1426: }
1.109 nicm 1427: if (c->flags & CLIENT_UTF8)
1.1 nicm 1428: c->tty.flags |= TTY_UTF8;
1.109 nicm 1429: if (c->flags & CLIENT_256COLOURS)
1.1 nicm 1430: c->tty.term_flags |= TERM_256COLOURS;
1431:
1432: tty_resize(&c->tty);
1433:
1.109 nicm 1434: if (!(c->flags & CLIENT_CONTROL))
1.86 nicm 1435: c->flags |= CLIENT_TERMINAL;
1.1 nicm 1436: }
1437:
1438: /* Handle shell message. */
1.190 nicm 1439: static void
1.162 nicm 1440: server_client_dispatch_shell(struct client *c)
1.1 nicm 1441: {
1.107 nicm 1442: const char *shell;
1.25 nicm 1443:
1.163 nicm 1444: shell = options_get_string(global_s_options, "default-shell");
1.1 nicm 1445: if (*shell == '\0' || areshell(shell))
1446: shell = _PATH_BSHELL;
1.162 nicm 1447: proc_send_s(c->peer, MSG_SHELL, shell);
1.25 nicm 1448:
1.162 nicm 1449: proc_kill_peer(c->peer);
1.169 nicm 1450: }
1451:
1452: /* Event callback to push more stdout data if any left. */
1453: static void
1.170 nicm 1454: server_client_stdout_cb(__unused int fd, __unused short events, void *arg)
1.169 nicm 1455: {
1456: struct client *c = arg;
1457:
1458: if (~c->flags & CLIENT_DEAD)
1459: server_client_push_stdout(c);
1460: server_client_unref(c);
1461: }
1462:
1463: /* Push stdout to client if possible. */
1464: void
1465: server_client_push_stdout(struct client *c)
1466: {
1467: struct msg_stdout_data data;
1468: size_t sent, left;
1469:
1470: left = EVBUFFER_LENGTH(c->stdout_data);
1471: while (left != 0) {
1472: sent = left;
1473: if (sent > sizeof data.data)
1474: sent = sizeof data.data;
1475: memcpy(data.data, EVBUFFER_DATA(c->stdout_data), sent);
1476: data.size = sent;
1477:
1478: if (proc_send(c->peer, MSG_STDOUT, -1, &data, sizeof data) != 0)
1479: break;
1480: evbuffer_drain(c->stdout_data, sent);
1481:
1482: left = EVBUFFER_LENGTH(c->stdout_data);
1483: log_debug("%s: client %p, sent %zu, left %zu", __func__, c,
1484: sent, left);
1485: }
1486: if (left != 0) {
1487: c->references++;
1488: event_once(-1, EV_TIMEOUT, server_client_stdout_cb, c, NULL);
1489: log_debug("%s: client %p, queued", __func__, c);
1490: }
1491: }
1492:
1493: /* Event callback to push more stderr data if any left. */
1494: static void
1.170 nicm 1495: server_client_stderr_cb(__unused int fd, __unused short events, void *arg)
1.169 nicm 1496: {
1497: struct client *c = arg;
1498:
1499: if (~c->flags & CLIENT_DEAD)
1500: server_client_push_stderr(c);
1501: server_client_unref(c);
1502: }
1503:
1504: /* Push stderr to client if possible. */
1505: void
1506: server_client_push_stderr(struct client *c)
1507: {
1508: struct msg_stderr_data data;
1509: size_t sent, left;
1510:
1511: if (c->stderr_data == c->stdout_data) {
1512: server_client_push_stdout(c);
1513: return;
1514: }
1515:
1516: left = EVBUFFER_LENGTH(c->stderr_data);
1517: while (left != 0) {
1518: sent = left;
1519: if (sent > sizeof data.data)
1520: sent = sizeof data.data;
1521: memcpy(data.data, EVBUFFER_DATA(c->stderr_data), sent);
1522: data.size = sent;
1523:
1524: if (proc_send(c->peer, MSG_STDERR, -1, &data, sizeof data) != 0)
1525: break;
1526: evbuffer_drain(c->stderr_data, sent);
1527:
1528: left = EVBUFFER_LENGTH(c->stderr_data);
1529: log_debug("%s: client %p, sent %zu, left %zu", __func__, c,
1530: sent, left);
1531: }
1532: if (left != 0) {
1533: c->references++;
1534: event_once(-1, EV_TIMEOUT, server_client_stderr_cb, c, NULL);
1535: log_debug("%s: client %p, queued", __func__, c);
1536: }
1.1 nicm 1537: }
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