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1.14 ! nicm 1: /* $OpenBSD: server-client.c,v 1.13 2009/11/04 21:47:42 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:
30: void server_client_handle_data(struct client *);
31: void server_client_check_redraw(struct client *);
32: void server_client_set_title(struct client *);
33: void server_client_check_timers(struct client *);
34:
35: int server_client_msg_dispatch(struct client *);
36: void server_client_msg_command(struct client *, struct msg_command_data *);
37: void server_client_msg_identify(
38: struct client *, struct msg_identify_data *, int);
39: void server_client_msg_shell(struct client *);
40:
41: void printflike2 server_client_msg_error(struct cmd_ctx *, const char *, ...);
42: void printflike2 server_client_msg_print(struct cmd_ctx *, const char *, ...);
43: void printflike2 server_client_msg_info(struct cmd_ctx *, const char *, ...);
44:
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:
88: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
89: if (ARRAY_ITEM(&clients, i) == NULL) {
90: ARRAY_SET(&clients, i, c);
91: return;
92: }
93: }
94: ARRAY_ADD(&clients, c);
95: log_debug("new client %d", fd);
96: }
97:
98: /* Lost a client. */
99: void
100: server_client_lost(struct client *c)
101: {
102: u_int i;
103:
104: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
105: if (ARRAY_ITEM(&clients, i) == c)
106: ARRAY_SET(&clients, i, NULL);
107: }
108: log_debug("lost client %d", c->ibuf.fd);
109:
110: /*
111: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
112: * and tty_free might close an unrelated fd.
113: */
114: if (c->flags & CLIENT_TERMINAL)
115: tty_free(&c->tty);
116:
117: screen_free(&c->status);
118: job_tree_free(&c->status_jobs);
119:
120: if (c->title != NULL)
121: xfree(c->title);
122:
123: if (c->message_string != NULL)
124: xfree(c->message_string);
125:
126: if (c->prompt_string != NULL)
127: xfree(c->prompt_string);
128: if (c->prompt_buffer != NULL)
129: xfree(c->prompt_buffer);
130: for (i = 0; i < ARRAY_LENGTH(&c->prompt_hdata); i++)
131: xfree(ARRAY_ITEM(&c->prompt_hdata, i));
132: ARRAY_FREE(&c->prompt_hdata);
133:
134: if (c->cwd != NULL)
135: xfree(c->cwd);
136:
137: close(c->ibuf.fd);
138: imsg_clear(&c->ibuf);
1.12 nicm 139: event_del(&c->event);
1.13 nicm 140:
1.1 nicm 141: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
142: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
143: ARRAY_SET(&dead_clients, i, c);
144: break;
145: }
146: }
147: if (i == ARRAY_LENGTH(&dead_clients))
148: ARRAY_ADD(&dead_clients, c);
149: c->flags |= CLIENT_DEAD;
150:
151: recalculate_sizes();
1.9 nicm 152: }
153:
1.1 nicm 154: /* Process a single client event. */
155: void
1.12 nicm 156: server_client_callback(int fd, short events, void *data)
1.1 nicm 157: {
158: struct client *c = data;
1.7 nicm 159:
160: if (c->flags & CLIENT_DEAD)
161: return;
1.1 nicm 162:
163: if (fd == c->ibuf.fd) {
1.12 nicm 164: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 165: goto client_lost;
166:
167: if (c->flags & CLIENT_BAD) {
168: if (c->ibuf.w.queued == 0)
169: goto client_lost;
170: return;
171: }
172:
1.12 nicm 173: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 174: goto client_lost;
175: }
1.14 ! nicm 176:
! 177: server_update_event(c);
1.1 nicm 178: return;
179:
180: client_lost:
181: server_client_lost(c);
182: }
183:
1.2 nicm 184: /* Client functions that need to happen every loop. */
185: void
186: server_client_loop(void)
187: {
188: struct client *c;
189: struct window *w;
190: struct window_pane *wp;
191: u_int i;
192:
193: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
194: c = ARRAY_ITEM(&clients, i);
195: if (c == NULL || c->session == NULL)
196: continue;
197:
1.3 nicm 198: server_client_handle_data(c);
1.6 nicm 199: if (c->session != NULL) {
200: server_client_check_timers(c);
201: server_client_check_redraw(c);
202: }
1.2 nicm 203: }
204:
205: /*
206: * Any windows will have been redrawn as part of clients, so clear
207: * their flags now.
208: */
209: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
210: w = ARRAY_ITEM(&windows, i);
211: if (w == NULL)
212: continue;
213:
214: w->flags &= ~WINDOW_REDRAW;
215: TAILQ_FOREACH(wp, &w->panes, entry)
216: wp->flags &= ~PANE_REDRAW;
217: }
218: }
219:
220: /* Handle data input or output from client. */
1.1 nicm 221: void
222: server_client_handle_data(struct client *c)
223: {
224: struct window *w;
225: struct window_pane *wp;
226: struct screen *s;
227: struct options *oo;
1.10 nicm 228: struct timeval tv_add, tv_now;
1.1 nicm 229: struct key_binding *bd;
230: struct keylist *keylist;
231: struct mouse_event mouse;
232: int key, status, xtimeout, mode, isprefix;
233: u_int i;
234:
1.10 nicm 235: /* Check and update repeat flag. */
236: if (gettimeofday(&tv_now, NULL) != 0)
237: fatal("gettimeofday failed");
1.1 nicm 238: xtimeout = options_get_number(&c->session->options, "repeat-time");
239: if (xtimeout != 0 && c->flags & CLIENT_REPEAT) {
1.10 nicm 240: if (timercmp(&tv_now, &c->repeat_timer, >))
1.1 nicm 241: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
242: }
243:
244: /* Process keys. */
245: keylist = options_get_data(&c->session->options, "prefix");
246: while (tty_keys_next(&c->tty, &key, &mouse) == 0) {
247: if (c->session == NULL)
248: return;
249: w = c->session->curw->window;
250: wp = w->active; /* could die */
251: oo = &c->session->options;
252:
1.10 nicm 253: /* Update activity timer. */
1.11 nicm 254: memcpy(&c->activity_time, &tv_now, sizeof c->activity_time);
1.10 nicm 255: memcpy(&c->session->activity_time,
256: &tv_now, sizeof c->session->activity_time);
257:
1.1 nicm 258: /* Special case: number keys jump to pane in identify mode. */
259: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
260: wp = window_pane_at_index(w, key - '0');
261: if (wp != NULL && window_pane_visible(wp))
262: window_set_active_pane(w, wp);
263: server_clear_identify(c);
264: continue;
265: }
266:
267: status_message_clear(c);
268: server_clear_identify(c);
269: if (c->prompt_string != NULL) {
270: status_prompt_key(c, key);
271: continue;
272: }
273:
274: /* Check for mouse keys. */
275: if (key == KEYC_MOUSE) {
276: if (options_get_number(oo, "mouse-select-pane")) {
277: window_set_active_at(w, mouse.x, mouse.y);
278: wp = w->active;
279: }
280: window_pane_mouse(wp, c, &mouse);
281: continue;
282: }
283:
284: /* Is this a prefix key? */
285: isprefix = 0;
286: for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
287: if (key == ARRAY_ITEM(keylist, i)) {
288: isprefix = 1;
289: break;
290: }
291: }
292:
293: /* No previous prefix key. */
294: if (!(c->flags & CLIENT_PREFIX)) {
295: if (isprefix)
296: c->flags |= CLIENT_PREFIX;
297: else {
298: /* Try as a non-prefix key binding. */
299: if ((bd = key_bindings_lookup(key)) == NULL)
300: window_pane_key(wp, c, key);
301: else
302: key_bindings_dispatch(bd, c);
303: }
304: continue;
305: }
306:
307: /* Prefix key already pressed. Reset prefix and lookup key. */
308: c->flags &= ~CLIENT_PREFIX;
309: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
310: /* If repeating, treat this as a key, else ignore. */
311: if (c->flags & CLIENT_REPEAT) {
312: c->flags &= ~CLIENT_REPEAT;
313: if (isprefix)
314: c->flags |= CLIENT_PREFIX;
315: else
316: window_pane_key(wp, c, key);
317: }
318: continue;
319: }
320:
321: /* If already repeating, but this key can't repeat, skip it. */
322: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
323: c->flags &= ~CLIENT_REPEAT;
324: if (isprefix)
325: c->flags |= CLIENT_PREFIX;
326: else
327: window_pane_key(wp, c, key);
328: continue;
329: }
330:
331: /* If this key can repeat, reset the repeat flags and timer. */
332: if (xtimeout != 0 && bd->can_repeat) {
333: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
334:
1.10 nicm 335: tv_add.tv_sec = xtimeout / 1000;
336: tv_add.tv_usec = (xtimeout % 1000) * 1000L;
337: timeradd(&tv_now, &tv_add, &c->repeat_timer);
1.1 nicm 338: }
339:
340: /* Dispatch the command. */
341: key_bindings_dispatch(bd, c);
342: }
343: if (c->session == NULL)
344: return;
345: w = c->session->curw->window;
346: wp = w->active;
347: oo = &c->session->options;
348: s = wp->screen;
349:
350: /*
351: * Update cursor position and mode settings. The scroll region and
352: * attributes are cleared across poll(2) as this is the most likely
353: * time a user may interrupt tmux, for example with ~^Z in ssh(1). This
354: * is a compromise between excessive resets and likelihood of an
355: * interrupt.
356: *
357: * tty_region/tty_reset/tty_update_mode already take care of not
358: * resetting things that are already in their default state.
359: */
360: tty_region(&c->tty, 0, c->tty.sy - 1);
361:
362: status = options_get_number(oo, "status");
363: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
364: tty_cursor(&c->tty, 0, 0);
365: else
366: tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
367:
368: mode = s->mode;
369: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
370: options_get_number(oo, "mouse-select-pane"))
371: mode |= MODE_MOUSE;
372: tty_update_mode(&c->tty, mode);
373: tty_reset(&c->tty);
374: }
375:
376: /* Check for client redraws. */
377: void
378: server_client_check_redraw(struct client *c)
379: {
380: struct session *s = c->session;
381: struct window_pane *wp;
382: int flags, redraw;
383:
384: flags = c->tty.flags & TTY_FREEZE;
385: c->tty.flags &= ~TTY_FREEZE;
386:
387: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
388: if (options_get_number(&s->options, "set-titles"))
389: server_client_set_title(c);
1.12 nicm 390:
1.1 nicm 391: if (c->message_string != NULL)
392: redraw = status_message_redraw(c);
393: else if (c->prompt_string != NULL)
394: redraw = status_prompt_redraw(c);
395: else
396: redraw = status_redraw(c);
397: if (!redraw)
398: c->flags &= ~CLIENT_STATUS;
399: }
400:
401: if (c->flags & CLIENT_REDRAW) {
402: screen_redraw_screen(c, 0);
403: c->flags &= ~CLIENT_STATUS;
404: } else {
405: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
406: if (wp->flags & PANE_REDRAW)
407: screen_redraw_pane(c, wp);
408: }
409: }
410:
411: if (c->flags & CLIENT_STATUS)
412: screen_redraw_screen(c, 1);
413:
414: c->tty.flags |= flags;
415:
416: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS);
417: }
418:
419: /* Set client title. */
420: void
421: server_client_set_title(struct client *c)
422: {
423: struct session *s = c->session;
424: const char *template;
425: char *title;
426:
427: template = options_get_string(&s->options, "set-titles-string");
428:
429: title = status_replace(c, template, time(NULL));
430: if (c->title == NULL || strcmp(title, c->title) != 0) {
431: if (c->title != NULL)
432: xfree(c->title);
433: c->title = xstrdup(title);
434: tty_set_title(&c->tty, c->title);
435: }
436: xfree(title);
437: }
438:
439: /* Check client timers. */
440: void
441: server_client_check_timers(struct client *c)
442: {
443: struct session *s = c->session;
444: struct job *job;
445: struct timeval tv;
446: u_int interval;
447:
448: if (gettimeofday(&tv, NULL) != 0)
449: fatal("gettimeofday failed");
450:
451: if (c->flags & CLIENT_IDENTIFY && timercmp(&tv, &c->identify_timer, >))
452: server_clear_identify(c);
453:
454: if (c->message_string != NULL && timercmp(&tv, &c->message_timer, >))
455: status_message_clear(c);
456:
457: if (c->message_string != NULL || c->prompt_string != NULL) {
458: /*
459: * Don't need timed redraw for messages/prompts so bail now.
460: * The status timer isn't reset when they are redrawn anyway.
461: */
462: return;
463:
464: }
465: if (!options_get_number(&s->options, "status"))
466: return;
467:
468: /* Check timer; resolution is only a second so don't be too clever. */
469: interval = options_get_number(&s->options, "status-interval");
470: if (interval == 0)
471: return;
472: if (tv.tv_sec < c->status_timer.tv_sec ||
473: ((u_int) tv.tv_sec) - c->status_timer.tv_sec >= interval) {
474: /* Run the jobs for this client and schedule for redraw. */
475: RB_FOREACH(job, jobs, &c->status_jobs)
476: job_run(job);
477: c->flags |= CLIENT_STATUS;
478: }
479: }
480:
481: /* Dispatch message from client. */
482: int
483: server_client_msg_dispatch(struct client *c)
484: {
485: struct imsg imsg;
486: struct msg_command_data commanddata;
487: struct msg_identify_data identifydata;
488: struct msg_environ_data environdata;
489: ssize_t n, datalen;
490:
1.8 deraadt 491: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
492: return (-1);
1.1 nicm 493:
494: for (;;) {
495: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
496: return (-1);
497: if (n == 0)
498: return (0);
499: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
500:
501: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
502: server_write_client(c, MSG_VERSION, NULL, 0);
503: c->flags |= CLIENT_BAD;
504: imsg_free(&imsg);
505: continue;
506: }
507:
508: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
509: switch (imsg.hdr.type) {
510: case MSG_COMMAND:
511: if (datalen != sizeof commanddata)
512: fatalx("bad MSG_COMMAND size");
513: memcpy(&commanddata, imsg.data, sizeof commanddata);
514:
515: server_client_msg_command(c, &commanddata);
516: break;
517: case MSG_IDENTIFY:
518: if (datalen != sizeof identifydata)
519: fatalx("bad MSG_IDENTIFY size");
520: if (imsg.fd == -1)
521: fatalx("MSG_IDENTIFY missing fd");
522: memcpy(&identifydata, imsg.data, sizeof identifydata);
523:
524: server_client_msg_identify(c, &identifydata, imsg.fd);
525: break;
526: case MSG_RESIZE:
527: if (datalen != 0)
528: fatalx("bad MSG_RESIZE size");
529:
530: tty_resize(&c->tty);
531: recalculate_sizes();
532: server_redraw_client(c);
533: break;
534: case MSG_EXITING:
535: if (datalen != 0)
536: fatalx("bad MSG_EXITING size");
537:
538: c->session = NULL;
539: tty_close(&c->tty);
540: server_write_client(c, MSG_EXITED, NULL, 0);
541: break;
542: case MSG_WAKEUP:
543: case MSG_UNLOCK:
544: if (datalen != 0)
545: fatalx("bad MSG_WAKEUP size");
546:
547: if (!(c->flags & CLIENT_SUSPENDED))
548: break;
549: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 550:
1.11 nicm 551: if (gettimeofday(&c->activity_time, NULL) != 0)
552: fatal("gettimeofday");
553: if (c->session != NULL) {
554: memcpy(&c->session->activity_time,
555: &c->activity_time,
556: sizeof c->session->activity_time);
557: }
1.10 nicm 558:
1.1 nicm 559: tty_start_tty(&c->tty);
560: server_redraw_client(c);
561: recalculate_sizes();
562: break;
563: case MSG_ENVIRON:
564: if (datalen != sizeof environdata)
565: fatalx("bad MSG_ENVIRON size");
566: memcpy(&environdata, imsg.data, sizeof environdata);
567:
568: environdata.var[(sizeof environdata.var) - 1] = '\0';
569: if (strchr(environdata.var, '=') != NULL)
570: environ_put(&c->environ, environdata.var);
571: break;
572: case MSG_SHELL:
573: if (datalen != 0)
574: fatalx("bad MSG_SHELL size");
575:
576: server_client_msg_shell(c);
577: break;
578: default:
579: fatalx("unexpected message");
580: }
581:
582: imsg_free(&imsg);
583: }
584: }
585:
586: /* Callback to send error message to client. */
587: void printflike2
588: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
589: {
590: struct msg_print_data data;
591: va_list ap;
592:
593: va_start(ap, fmt);
594: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
595: va_end(ap);
596:
597: server_write_client(ctx->cmdclient, MSG_ERROR, &data, sizeof data);
598: }
599:
600: /* Callback to send print message to client. */
601: void printflike2
602: server_client_msg_print(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_PRINT, &data, sizeof data);
612: }
613:
614: /* Callback to send print message to client, if not quiet. */
615: void printflike2
616: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
617: {
618: struct msg_print_data data;
619: va_list ap;
620:
621: if (be_quiet)
622: return;
623:
624: va_start(ap, fmt);
625: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
626: va_end(ap);
627:
628: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
629: }
630:
631: /* Handle command message. */
632: void
633: server_client_msg_command(struct client *c, struct msg_command_data *data)
634: {
635: struct cmd_ctx ctx;
636: struct cmd_list *cmdlist = NULL;
637: struct cmd *cmd;
638: int argc;
639: char **argv, *cause;
640:
641: ctx.error = server_client_msg_error;
642: ctx.print = server_client_msg_print;
643: ctx.info = server_client_msg_info;
644:
645: ctx.msgdata = data;
646: ctx.curclient = NULL;
647:
648: ctx.cmdclient = c;
649:
650: argc = data->argc;
651: data->argv[(sizeof data->argv) - 1] = '\0';
652: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
653: server_client_msg_error(&ctx, "command too long");
654: goto error;
655: }
656:
657: if (argc == 0) {
658: argc = 1;
659: argv = xcalloc(1, sizeof *argv);
660: *argv = xstrdup("new-session");
661: }
662:
663: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
664: server_client_msg_error(&ctx, "%s", cause);
665: cmd_free_argv(argc, argv);
666: goto error;
667: }
668: cmd_free_argv(argc, argv);
669:
670: if (data->pid != -1) {
671: TAILQ_FOREACH(cmd, cmdlist, qentry) {
672: if (cmd->entry->flags & CMD_CANTNEST) {
673: server_client_msg_error(&ctx,
674: "sessions should be nested with care. "
675: "unset $TMUX to force");
676: goto error;
677: }
678: }
679: }
680:
681: if (cmd_list_exec(cmdlist, &ctx) != 1)
682: server_write_client(c, MSG_EXIT, NULL, 0);
683: cmd_list_free(cmdlist);
684: return;
685:
686: error:
687: if (cmdlist != NULL)
688: cmd_list_free(cmdlist);
689: server_write_client(c, MSG_EXIT, NULL, 0);
690: }
691:
692: /* Handle identify message. */
693: void
694: server_client_msg_identify(
695: struct client *c, struct msg_identify_data *data, int fd)
696: {
697: c->cwd = NULL;
698: data->cwd[(sizeof data->cwd) - 1] = '\0';
699: if (*data->cwd != '\0')
700: c->cwd = xstrdup(data->cwd);
701:
702: data->term[(sizeof data->term) - 1] = '\0';
703: tty_init(&c->tty, fd, data->term);
704: if (data->flags & IDENTIFY_UTF8)
705: c->tty.flags |= TTY_UTF8;
706: if (data->flags & IDENTIFY_256COLOURS)
707: c->tty.term_flags |= TERM_256COLOURS;
708: else if (data->flags & IDENTIFY_88COLOURS)
709: c->tty.term_flags |= TERM_88COLOURS;
710:
711: tty_resize(&c->tty);
712:
713: c->flags |= CLIENT_TERMINAL;
714: }
715:
716: /* Handle shell message. */
717: void
718: server_client_msg_shell(struct client *c)
719: {
720: struct msg_shell_data data;
721: const char *shell;
722:
723: shell = options_get_string(&global_s_options, "default-shell");
724:
725: if (*shell == '\0' || areshell(shell))
726: shell = _PATH_BSHELL;
727: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
728: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
729:
730: server_write_client(c, MSG_SHELL, &data, sizeof data);
731: c->flags |= CLIENT_BAD; /* it will die after exec */
732: }