Annotation of src/usr.bin/tmux/server-client.c, Revision 1.20
1.20 ! nicm 1: /* $OpenBSD: server-client.c,v 1.19 2009/11/11 08:00:42 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:
1.18 nicm 30: void server_client_handle_key(int, struct mouse_event *, void *);
1.17 nicm 31: void server_client_repeat_timer(int, short, void *);
1.1 nicm 32: void server_client_check_redraw(struct client *);
33: void server_client_set_title(struct client *);
1.18 nicm 34: void server_client_reset_state(struct client *);
1.1 nicm 35:
36: int server_client_msg_dispatch(struct client *);
37: void server_client_msg_command(struct client *, struct msg_command_data *);
38: void server_client_msg_identify(
39: struct client *, struct msg_identify_data *, int);
40: void server_client_msg_shell(struct client *);
41:
42: void printflike2 server_client_msg_error(struct cmd_ctx *, const char *, ...);
43: void printflike2 server_client_msg_print(struct cmd_ctx *, const char *, ...);
44: void printflike2 server_client_msg_info(struct cmd_ctx *, const char *, ...);
45:
46: /* Create a new client. */
47: void
48: server_client_create(int fd)
49: {
50: struct client *c;
51: int mode;
52: u_int i;
53:
54: if ((mode = fcntl(fd, F_GETFL)) == -1)
55: fatal("fcntl failed");
56: if (fcntl(fd, F_SETFL, mode|O_NONBLOCK) == -1)
57: fatal("fcntl failed");
58: if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
59: fatal("fcntl failed");
60:
61: c = xcalloc(1, sizeof *c);
62: c->references = 0;
63: imsg_init(&c->ibuf, fd);
1.14 nicm 64: server_update_event(c);
1.1 nicm 65:
1.10 nicm 66: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 67: fatal("gettimeofday failed");
1.11 nicm 68: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.1 nicm 69:
70: ARRAY_INIT(&c->prompt_hdata);
71:
72: c->tty.fd = -1;
73: c->title = NULL;
74:
75: c->session = NULL;
76: c->tty.sx = 80;
77: c->tty.sy = 24;
78:
79: screen_init(&c->status, c->tty.sx, 1, 0);
80: job_tree_init(&c->status_jobs);
81:
82: c->message_string = NULL;
83:
84: c->prompt_string = NULL;
85: c->prompt_buffer = NULL;
86: c->prompt_index = 0;
87:
1.17 nicm 88: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
89:
1.1 nicm 90: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
91: if (ARRAY_ITEM(&clients, i) == NULL) {
92: ARRAY_SET(&clients, i, c);
93: return;
94: }
95: }
96: ARRAY_ADD(&clients, c);
97: log_debug("new client %d", fd);
98: }
99:
100: /* Lost a client. */
101: void
102: server_client_lost(struct client *c)
103: {
104: u_int i;
105:
106: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
107: if (ARRAY_ITEM(&clients, i) == c)
108: ARRAY_SET(&clients, i, NULL);
109: }
110: log_debug("lost client %d", c->ibuf.fd);
111:
112: /*
113: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
114: * and tty_free might close an unrelated fd.
115: */
116: if (c->flags & CLIENT_TERMINAL)
117: tty_free(&c->tty);
118:
119: screen_free(&c->status);
120: job_tree_free(&c->status_jobs);
121:
122: if (c->title != NULL)
123: xfree(c->title);
124:
1.17 nicm 125: evtimer_del(&c->repeat_timer);
126:
1.15 nicm 127: evtimer_del(&c->identify_timer);
128:
1.1 nicm 129: if (c->message_string != NULL)
130: xfree(c->message_string);
1.15 nicm 131: evtimer_del(&c->message_timer);
1.1 nicm 132:
133: if (c->prompt_string != NULL)
134: xfree(c->prompt_string);
135: if (c->prompt_buffer != NULL)
136: xfree(c->prompt_buffer);
137: for (i = 0; i < ARRAY_LENGTH(&c->prompt_hdata); i++)
138: xfree(ARRAY_ITEM(&c->prompt_hdata, i));
139: ARRAY_FREE(&c->prompt_hdata);
140:
141: if (c->cwd != NULL)
142: xfree(c->cwd);
143:
144: close(c->ibuf.fd);
145: imsg_clear(&c->ibuf);
1.12 nicm 146: event_del(&c->event);
1.13 nicm 147:
1.1 nicm 148: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
149: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
150: ARRAY_SET(&dead_clients, i, c);
151: break;
152: }
153: }
154: if (i == ARRAY_LENGTH(&dead_clients))
155: ARRAY_ADD(&dead_clients, c);
156: c->flags |= CLIENT_DEAD;
157:
158: recalculate_sizes();
1.19 nicm 159: server_update_socket();
1.9 nicm 160: }
161:
1.1 nicm 162: /* Process a single client event. */
163: void
1.12 nicm 164: server_client_callback(int fd, short events, void *data)
1.1 nicm 165: {
166: struct client *c = data;
1.7 nicm 167:
168: if (c->flags & CLIENT_DEAD)
169: return;
1.1 nicm 170:
171: if (fd == c->ibuf.fd) {
1.12 nicm 172: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 173: goto client_lost;
174:
175: if (c->flags & CLIENT_BAD) {
176: if (c->ibuf.w.queued == 0)
177: goto client_lost;
178: return;
179: }
180:
1.12 nicm 181: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 182: goto client_lost;
183: }
1.14 nicm 184:
185: server_update_event(c);
1.1 nicm 186: return;
187:
188: client_lost:
189: server_client_lost(c);
190: }
191:
1.16 nicm 192: /* Handle client status timer. */
193: void
194: server_client_status_timer(void)
195: {
196: struct client *c;
197: struct session *s;
198: struct job *job;
199: struct timeval tv;
1.20 ! nicm 200: u_int i;
! 201: int interval;
! 202: time_t difference;
1.16 nicm 203:
204: if (gettimeofday(&tv, NULL) != 0)
205: fatal("gettimeofday failed");
206:
207: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
208: c = ARRAY_ITEM(&clients, i);
209: if (c == NULL || c->session == NULL)
210: continue;
211: if (c->message_string != NULL || c->prompt_string != NULL) {
212: /*
213: * Don't need timed redraw for messages/prompts so bail
214: * now. The status timer isn't reset when they are
215: * redrawn anyway.
216: */
217: continue;
218: }
219: s = c->session;
220:
221: if (!options_get_number(&s->options, "status"))
222: continue;
223: interval = options_get_number(&s->options, "status-interval");
224:
1.20 ! nicm 225: difference = tv.tv_sec - c->status_timer.tv_sec;
! 226: if (difference >= interval) {
1.16 nicm 227: RB_FOREACH(job, jobs, &c->status_jobs)
1.20 ! nicm 228: job_run(job);
1.16 nicm 229: c->flags |= CLIENT_STATUS;
230: }
231: }
232: }
233:
1.18 nicm 234: /* Handle data key input from client. */
235: void
236: server_client_handle_key(int key, struct mouse_event *mouse, void *data)
237: {
238: struct client *c = data;
239: struct session *s;
240: struct window *w;
241: struct window_pane *wp;
242: struct options *oo;
243: struct timeval tv;
244: struct key_binding *bd;
245: struct keylist *keylist;
246: int xtimeout, isprefix;
247: u_int i;
248:
249: /* Check the client is good to accept input. */
250: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
251: return;
252: if (c->session == NULL)
253: return;
254: s = c->session;
255:
256: /* Update the activity timer. */
257: if (gettimeofday(&c->activity_time, NULL) != 0)
258: fatal("gettimeofday failed");
259: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
260:
261: w = c->session->curw->window;
262: wp = w->active;
263: oo = &c->session->options;
264:
265: /* Special case: number keys jump to pane in identify mode. */
266: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
267: wp = window_pane_at_index(w, key - '0');
268: if (wp != NULL && window_pane_visible(wp))
269: window_set_active_pane(w, wp);
270: server_clear_identify(c);
271: return;
272: }
273:
274: /* Handle status line. */
275: status_message_clear(c);
276: server_clear_identify(c);
277: if (c->prompt_string != NULL) {
278: status_prompt_key(c, key);
279: return;
280: }
281:
282: /* Check for mouse keys. */
283: if (key == KEYC_MOUSE) {
284: if (options_get_number(oo, "mouse-select-pane")) {
285: window_set_active_at(w, mouse->x, mouse->y);
286: wp = w->active;
287: }
288: window_pane_mouse(wp, c, mouse);
289: return;
290: }
291:
292: /* Is this a prefix key? */
293: keylist = options_get_data(&c->session->options, "prefix");
294: isprefix = 0;
295: for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
296: if (key == ARRAY_ITEM(keylist, i)) {
297: isprefix = 1;
298: break;
299: }
300: }
301:
302: /* No previous prefix key. */
303: if (!(c->flags & CLIENT_PREFIX)) {
304: if (isprefix)
305: c->flags |= CLIENT_PREFIX;
306: else {
307: /* Try as a non-prefix key binding. */
308: if ((bd = key_bindings_lookup(key)) == NULL)
309: window_pane_key(wp, c, key);
310: else
311: key_bindings_dispatch(bd, c);
312: }
313: return;
314: }
315:
316: /* Prefix key already pressed. Reset prefix and lookup key. */
317: c->flags &= ~CLIENT_PREFIX;
318: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
319: /* If repeating, treat this as a key, else ignore. */
320: if (c->flags & CLIENT_REPEAT) {
321: c->flags &= ~CLIENT_REPEAT;
322: if (isprefix)
323: c->flags |= CLIENT_PREFIX;
324: else
325: window_pane_key(wp, c, key);
326: }
327: return;
328: }
329:
330: /* If already repeating, but this key can't repeat, skip it. */
331: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
332: c->flags &= ~CLIENT_REPEAT;
333: if (isprefix)
334: c->flags |= CLIENT_PREFIX;
335: else
336: window_pane_key(wp, c, key);
337: return;
338: }
339:
340: /* If this key can repeat, reset the repeat flags and timer. */
341: xtimeout = options_get_number(&c->session->options, "repeat-time");
342: if (xtimeout != 0 && bd->can_repeat) {
343: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
344:
345: tv.tv_sec = xtimeout / 1000;
346: tv.tv_usec = (xtimeout % 1000) * 1000L;
347: evtimer_del(&c->repeat_timer);
348: evtimer_add(&c->repeat_timer, &tv);
349: }
350:
351: /* Dispatch the command. */
352: key_bindings_dispatch(bd, c);
353: }
354:
1.2 nicm 355: /* Client functions that need to happen every loop. */
356: void
357: server_client_loop(void)
358: {
359: struct client *c;
360: struct window *w;
361: struct window_pane *wp;
362: u_int i;
363:
364: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
365: c = ARRAY_ITEM(&clients, i);
366: if (c == NULL || c->session == NULL)
367: continue;
368:
1.18 nicm 369: server_client_check_redraw(c);
370: server_client_reset_state(c);
1.2 nicm 371: }
372:
373: /*
374: * Any windows will have been redrawn as part of clients, so clear
375: * their flags now.
376: */
377: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
378: w = ARRAY_ITEM(&windows, i);
379: if (w == NULL)
380: continue;
381:
382: w->flags &= ~WINDOW_REDRAW;
383: TAILQ_FOREACH(wp, &w->panes, entry)
384: wp->flags &= ~PANE_REDRAW;
385: }
386: }
387:
1.18 nicm 388: /*
389: * Update cursor position and mode settings. The scroll region and attributes
390: * are cleared when idle (waiting for an event) as this is the most likely time
391: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
392: * compromise between excessive resets and likelihood of an interrupt.
393: *
394: * tty_region/tty_reset/tty_update_mode already take care of not resetting
395: * things that are already in their default state.
396: */
1.1 nicm 397: void
1.18 nicm 398: server_client_reset_state(struct client *c)
1.1 nicm 399: {
1.18 nicm 400: struct window *w = c->session->curw->window;
401: struct window_pane *wp = w->active;
402: struct screen *s = wp->screen;
403: struct options *oo = &c->session->options;
404: int status, mode;
1.1 nicm 405:
406: tty_region(&c->tty, 0, c->tty.sy - 1);
407:
408: status = options_get_number(oo, "status");
409: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
410: tty_cursor(&c->tty, 0, 0);
411: else
412: tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
413:
414: mode = s->mode;
415: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
416: options_get_number(oo, "mouse-select-pane"))
417: mode |= MODE_MOUSE;
418: tty_update_mode(&c->tty, mode);
419: tty_reset(&c->tty);
1.17 nicm 420: }
421:
422: /* Repeat time callback. */
423: void
424: server_client_repeat_timer(unused int fd, unused short events, void *data)
425: {
426: struct client *c = data;
427:
428: if (c->flags & CLIENT_REPEAT)
429: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.1 nicm 430: }
431:
432: /* Check for client redraws. */
433: void
434: server_client_check_redraw(struct client *c)
435: {
436: struct session *s = c->session;
437: struct window_pane *wp;
438: int flags, redraw;
439:
440: flags = c->tty.flags & TTY_FREEZE;
441: c->tty.flags &= ~TTY_FREEZE;
442:
443: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
444: if (options_get_number(&s->options, "set-titles"))
445: server_client_set_title(c);
1.12 nicm 446:
1.1 nicm 447: if (c->message_string != NULL)
448: redraw = status_message_redraw(c);
449: else if (c->prompt_string != NULL)
450: redraw = status_prompt_redraw(c);
451: else
452: redraw = status_redraw(c);
453: if (!redraw)
454: c->flags &= ~CLIENT_STATUS;
455: }
456:
457: if (c->flags & CLIENT_REDRAW) {
458: screen_redraw_screen(c, 0);
459: c->flags &= ~CLIENT_STATUS;
460: } else {
461: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
462: if (wp->flags & PANE_REDRAW)
463: screen_redraw_pane(c, wp);
464: }
465: }
466:
467: if (c->flags & CLIENT_STATUS)
468: screen_redraw_screen(c, 1);
469:
470: c->tty.flags |= flags;
471:
472: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS);
473: }
474:
475: /* Set client title. */
476: void
477: server_client_set_title(struct client *c)
478: {
479: struct session *s = c->session;
480: const char *template;
481: char *title;
482:
483: template = options_get_string(&s->options, "set-titles-string");
484:
485: title = status_replace(c, template, time(NULL));
486: if (c->title == NULL || strcmp(title, c->title) != 0) {
487: if (c->title != NULL)
488: xfree(c->title);
489: c->title = xstrdup(title);
490: tty_set_title(&c->tty, c->title);
491: }
492: xfree(title);
493: }
494:
495: /* Dispatch message from client. */
496: int
497: server_client_msg_dispatch(struct client *c)
498: {
499: struct imsg imsg;
500: struct msg_command_data commanddata;
501: struct msg_identify_data identifydata;
502: struct msg_environ_data environdata;
503: ssize_t n, datalen;
504:
1.8 deraadt 505: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
506: return (-1);
1.1 nicm 507:
508: for (;;) {
509: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
510: return (-1);
511: if (n == 0)
512: return (0);
513: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
514:
515: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
516: server_write_client(c, MSG_VERSION, NULL, 0);
517: c->flags |= CLIENT_BAD;
518: imsg_free(&imsg);
519: continue;
520: }
521:
522: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
523: switch (imsg.hdr.type) {
524: case MSG_COMMAND:
525: if (datalen != sizeof commanddata)
526: fatalx("bad MSG_COMMAND size");
527: memcpy(&commanddata, imsg.data, sizeof commanddata);
528:
529: server_client_msg_command(c, &commanddata);
530: break;
531: case MSG_IDENTIFY:
532: if (datalen != sizeof identifydata)
533: fatalx("bad MSG_IDENTIFY size");
534: if (imsg.fd == -1)
535: fatalx("MSG_IDENTIFY missing fd");
536: memcpy(&identifydata, imsg.data, sizeof identifydata);
537:
538: server_client_msg_identify(c, &identifydata, imsg.fd);
539: break;
540: case MSG_RESIZE:
541: if (datalen != 0)
542: fatalx("bad MSG_RESIZE size");
543:
544: tty_resize(&c->tty);
545: recalculate_sizes();
546: server_redraw_client(c);
547: break;
548: case MSG_EXITING:
549: if (datalen != 0)
550: fatalx("bad MSG_EXITING size");
551:
552: c->session = NULL;
553: tty_close(&c->tty);
554: server_write_client(c, MSG_EXITED, NULL, 0);
555: break;
556: case MSG_WAKEUP:
557: case MSG_UNLOCK:
558: if (datalen != 0)
559: fatalx("bad MSG_WAKEUP size");
560:
561: if (!(c->flags & CLIENT_SUSPENDED))
562: break;
563: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 564:
1.11 nicm 565: if (gettimeofday(&c->activity_time, NULL) != 0)
566: fatal("gettimeofday");
567: if (c->session != NULL) {
568: memcpy(&c->session->activity_time,
569: &c->activity_time,
570: sizeof c->session->activity_time);
571: }
1.10 nicm 572:
1.1 nicm 573: tty_start_tty(&c->tty);
574: server_redraw_client(c);
575: recalculate_sizes();
576: break;
577: case MSG_ENVIRON:
578: if (datalen != sizeof environdata)
579: fatalx("bad MSG_ENVIRON size");
580: memcpy(&environdata, imsg.data, sizeof environdata);
581:
582: environdata.var[(sizeof environdata.var) - 1] = '\0';
583: if (strchr(environdata.var, '=') != NULL)
584: environ_put(&c->environ, environdata.var);
585: break;
586: case MSG_SHELL:
587: if (datalen != 0)
588: fatalx("bad MSG_SHELL size");
589:
590: server_client_msg_shell(c);
591: break;
592: default:
593: fatalx("unexpected message");
594: }
595:
596: imsg_free(&imsg);
597: }
598: }
599:
600: /* Callback to send error message to client. */
601: void printflike2
602: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
603: {
604: struct msg_print_data data;
605: va_list ap;
606:
607: va_start(ap, fmt);
608: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
609: va_end(ap);
610:
611: server_write_client(ctx->cmdclient, MSG_ERROR, &data, sizeof data);
612: }
613:
614: /* Callback to send print message to client. */
615: void printflike2
616: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
617: {
618: struct msg_print_data data;
619: va_list ap;
620:
621: va_start(ap, fmt);
622: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
623: va_end(ap);
624:
625: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
626: }
627:
628: /* Callback to send print message to client, if not quiet. */
629: void printflike2
630: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
631: {
632: struct msg_print_data data;
633: va_list ap;
634:
635: if (be_quiet)
636: return;
637:
638: va_start(ap, fmt);
639: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
640: va_end(ap);
641:
642: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
643: }
644:
645: /* Handle command message. */
646: void
647: server_client_msg_command(struct client *c, struct msg_command_data *data)
648: {
649: struct cmd_ctx ctx;
650: struct cmd_list *cmdlist = NULL;
651: struct cmd *cmd;
652: int argc;
653: char **argv, *cause;
654:
655: ctx.error = server_client_msg_error;
656: ctx.print = server_client_msg_print;
657: ctx.info = server_client_msg_info;
658:
659: ctx.msgdata = data;
660: ctx.curclient = NULL;
661:
662: ctx.cmdclient = c;
663:
664: argc = data->argc;
665: data->argv[(sizeof data->argv) - 1] = '\0';
666: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
667: server_client_msg_error(&ctx, "command too long");
668: goto error;
669: }
670:
671: if (argc == 0) {
672: argc = 1;
673: argv = xcalloc(1, sizeof *argv);
674: *argv = xstrdup("new-session");
675: }
676:
677: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
678: server_client_msg_error(&ctx, "%s", cause);
679: cmd_free_argv(argc, argv);
680: goto error;
681: }
682: cmd_free_argv(argc, argv);
683:
684: if (data->pid != -1) {
685: TAILQ_FOREACH(cmd, cmdlist, qentry) {
686: if (cmd->entry->flags & CMD_CANTNEST) {
687: server_client_msg_error(&ctx,
688: "sessions should be nested with care. "
689: "unset $TMUX to force");
690: goto error;
691: }
692: }
693: }
694:
695: if (cmd_list_exec(cmdlist, &ctx) != 1)
696: server_write_client(c, MSG_EXIT, NULL, 0);
697: cmd_list_free(cmdlist);
698: return;
699:
700: error:
701: if (cmdlist != NULL)
702: cmd_list_free(cmdlist);
703: server_write_client(c, MSG_EXIT, NULL, 0);
704: }
705:
706: /* Handle identify message. */
707: void
708: server_client_msg_identify(
709: struct client *c, struct msg_identify_data *data, int fd)
710: {
711: c->cwd = NULL;
712: data->cwd[(sizeof data->cwd) - 1] = '\0';
713: if (*data->cwd != '\0')
714: c->cwd = xstrdup(data->cwd);
715:
716: data->term[(sizeof data->term) - 1] = '\0';
717: tty_init(&c->tty, fd, data->term);
718: if (data->flags & IDENTIFY_UTF8)
719: c->tty.flags |= TTY_UTF8;
720: if (data->flags & IDENTIFY_256COLOURS)
721: c->tty.term_flags |= TERM_256COLOURS;
722: else if (data->flags & IDENTIFY_88COLOURS)
723: c->tty.term_flags |= TERM_88COLOURS;
1.18 nicm 724: c->tty.key_callback = server_client_handle_key;
725: c->tty.key_data = c;
1.1 nicm 726:
727: tty_resize(&c->tty);
728:
729: c->flags |= CLIENT_TERMINAL;
730: }
731:
732: /* Handle shell message. */
733: void
734: server_client_msg_shell(struct client *c)
735: {
736: struct msg_shell_data data;
737: const char *shell;
738:
739: shell = options_get_string(&global_s_options, "default-shell");
740:
741: if (*shell == '\0' || areshell(shell))
742: shell = _PATH_BSHELL;
743: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
744: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
745:
746: server_write_client(c, MSG_SHELL, &data, sizeof data);
747: c->flags |= CLIENT_BAD; /* it will die after exec */
748: }
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