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1.16 ! nicm 1: /* $OpenBSD: server-client.c,v 1.15 2009/11/04 23:29:42 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:
34: int server_client_msg_dispatch(struct client *);
35: void server_client_msg_command(struct client *, struct msg_command_data *);
36: void server_client_msg_identify(
37: struct client *, struct msg_identify_data *, int);
38: void server_client_msg_shell(struct client *);
39:
40: void printflike2 server_client_msg_error(struct cmd_ctx *, const char *, ...);
41: void printflike2 server_client_msg_print(struct cmd_ctx *, const char *, ...);
42: void printflike2 server_client_msg_info(struct cmd_ctx *, const char *, ...);
43:
44:
45: /* Create a new client. */
46: void
47: server_client_create(int fd)
48: {
49: struct client *c;
50: int mode;
51: u_int i;
52:
53: if ((mode = fcntl(fd, F_GETFL)) == -1)
54: fatal("fcntl failed");
55: if (fcntl(fd, F_SETFL, mode|O_NONBLOCK) == -1)
56: fatal("fcntl failed");
57: if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
58: fatal("fcntl failed");
59:
60: c = xcalloc(1, sizeof *c);
61: c->references = 0;
62: imsg_init(&c->ibuf, fd);
1.14 nicm 63: server_update_event(c);
1.1 nicm 64:
1.10 nicm 65: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 66: fatal("gettimeofday failed");
1.11 nicm 67: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.1 nicm 68:
69: ARRAY_INIT(&c->prompt_hdata);
70:
71: c->tty.fd = -1;
72: c->title = NULL;
73:
74: c->session = NULL;
75: c->tty.sx = 80;
76: c->tty.sy = 24;
77:
78: screen_init(&c->status, c->tty.sx, 1, 0);
79: job_tree_init(&c->status_jobs);
80:
81: c->message_string = NULL;
82:
83: c->prompt_string = NULL;
84: c->prompt_buffer = NULL;
85: c->prompt_index = 0;
86:
87: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
88: if (ARRAY_ITEM(&clients, i) == NULL) {
89: ARRAY_SET(&clients, i, c);
90: return;
91: }
92: }
93: ARRAY_ADD(&clients, c);
94: log_debug("new client %d", fd);
95: }
96:
97: /* Lost a client. */
98: void
99: server_client_lost(struct client *c)
100: {
101: u_int i;
102:
103: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
104: if (ARRAY_ITEM(&clients, i) == c)
105: ARRAY_SET(&clients, i, NULL);
106: }
107: log_debug("lost client %d", c->ibuf.fd);
108:
109: /*
110: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
111: * and tty_free might close an unrelated fd.
112: */
113: if (c->flags & CLIENT_TERMINAL)
114: tty_free(&c->tty);
115:
116: screen_free(&c->status);
117: job_tree_free(&c->status_jobs);
118:
119: if (c->title != NULL)
120: xfree(c->title);
121:
1.15 nicm 122: evtimer_del(&c->identify_timer);
123:
1.1 nicm 124: if (c->message_string != NULL)
125: xfree(c->message_string);
1.15 nicm 126: evtimer_del(&c->message_timer);
1.1 nicm 127:
128: if (c->prompt_string != NULL)
129: xfree(c->prompt_string);
130: if (c->prompt_buffer != NULL)
131: xfree(c->prompt_buffer);
132: for (i = 0; i < ARRAY_LENGTH(&c->prompt_hdata); i++)
133: xfree(ARRAY_ITEM(&c->prompt_hdata, i));
134: ARRAY_FREE(&c->prompt_hdata);
135:
136: if (c->cwd != NULL)
137: xfree(c->cwd);
138:
139: close(c->ibuf.fd);
140: imsg_clear(&c->ibuf);
1.12 nicm 141: event_del(&c->event);
1.13 nicm 142:
1.1 nicm 143: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
144: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
145: ARRAY_SET(&dead_clients, i, c);
146: break;
147: }
148: }
149: if (i == ARRAY_LENGTH(&dead_clients))
150: ARRAY_ADD(&dead_clients, c);
151: c->flags |= CLIENT_DEAD;
152:
153: recalculate_sizes();
1.9 nicm 154: }
155:
1.1 nicm 156: /* Process a single client event. */
157: void
1.12 nicm 158: server_client_callback(int fd, short events, void *data)
1.1 nicm 159: {
160: struct client *c = data;
1.7 nicm 161:
162: if (c->flags & CLIENT_DEAD)
163: return;
1.1 nicm 164:
165: if (fd == c->ibuf.fd) {
1.12 nicm 166: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 167: goto client_lost;
168:
169: if (c->flags & CLIENT_BAD) {
170: if (c->ibuf.w.queued == 0)
171: goto client_lost;
172: return;
173: }
174:
1.12 nicm 175: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 176: goto client_lost;
177: }
1.14 nicm 178:
179: server_update_event(c);
1.1 nicm 180: return;
181:
182: client_lost:
183: server_client_lost(c);
184: }
185:
1.16 ! nicm 186: /* Handle client status timer. */
! 187: void
! 188: server_client_status_timer(void)
! 189: {
! 190: struct client *c;
! 191: struct session *s;
! 192: struct job *job;
! 193: struct timeval tv;
! 194: u_int i, interval;
! 195:
! 196: if (gettimeofday(&tv, NULL) != 0)
! 197: fatal("gettimeofday failed");
! 198:
! 199: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
! 200: c = ARRAY_ITEM(&clients, i);
! 201: if (c == NULL || c->session == NULL)
! 202: continue;
! 203: if (c->message_string != NULL || c->prompt_string != NULL) {
! 204: /*
! 205: * Don't need timed redraw for messages/prompts so bail
! 206: * now. The status timer isn't reset when they are
! 207: * redrawn anyway.
! 208: */
! 209: continue;
! 210: }
! 211: s = c->session;
! 212:
! 213: if (!options_get_number(&s->options, "status"))
! 214: continue;
! 215: interval = options_get_number(&s->options, "status-interval");
! 216:
! 217: if (tv.tv_sec - c->status_timer.tv_sec >= interval) {
! 218: RB_FOREACH(job, jobs, &c->status_jobs)
! 219: job_run(job);
! 220: c->flags |= CLIENT_STATUS;
! 221: }
! 222: }
! 223: }
! 224:
1.2 nicm 225: /* Client functions that need to happen every loop. */
226: void
227: server_client_loop(void)
228: {
229: struct client *c;
230: struct window *w;
231: struct window_pane *wp;
232: u_int i;
233:
234: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
235: c = ARRAY_ITEM(&clients, i);
236: if (c == NULL || c->session == NULL)
237: continue;
238:
1.3 nicm 239: server_client_handle_data(c);
1.16 ! nicm 240: if (c->session != NULL)
1.6 nicm 241: server_client_check_redraw(c);
1.2 nicm 242: }
243:
244: /*
245: * Any windows will have been redrawn as part of clients, so clear
246: * their flags now.
247: */
248: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
249: w = ARRAY_ITEM(&windows, i);
250: if (w == NULL)
251: continue;
252:
253: w->flags &= ~WINDOW_REDRAW;
254: TAILQ_FOREACH(wp, &w->panes, entry)
255: wp->flags &= ~PANE_REDRAW;
256: }
257: }
258:
259: /* Handle data input or output from client. */
1.1 nicm 260: void
261: server_client_handle_data(struct client *c)
262: {
263: struct window *w;
264: struct window_pane *wp;
265: struct screen *s;
266: struct options *oo;
1.10 nicm 267: struct timeval tv_add, tv_now;
1.1 nicm 268: struct key_binding *bd;
269: struct keylist *keylist;
270: struct mouse_event mouse;
271: int key, status, xtimeout, mode, isprefix;
272: u_int i;
273:
1.10 nicm 274: /* Check and update repeat flag. */
275: if (gettimeofday(&tv_now, NULL) != 0)
276: fatal("gettimeofday failed");
1.1 nicm 277: xtimeout = options_get_number(&c->session->options, "repeat-time");
278: if (xtimeout != 0 && c->flags & CLIENT_REPEAT) {
1.10 nicm 279: if (timercmp(&tv_now, &c->repeat_timer, >))
1.1 nicm 280: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
281: }
282:
283: /* Process keys. */
284: keylist = options_get_data(&c->session->options, "prefix");
285: while (tty_keys_next(&c->tty, &key, &mouse) == 0) {
286: if (c->session == NULL)
287: return;
288: w = c->session->curw->window;
289: wp = w->active; /* could die */
290: oo = &c->session->options;
291:
1.10 nicm 292: /* Update activity timer. */
1.11 nicm 293: memcpy(&c->activity_time, &tv_now, sizeof c->activity_time);
1.10 nicm 294: memcpy(&c->session->activity_time,
295: &tv_now, sizeof c->session->activity_time);
296:
1.1 nicm 297: /* Special case: number keys jump to pane in identify mode. */
298: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
299: wp = window_pane_at_index(w, key - '0');
300: if (wp != NULL && window_pane_visible(wp))
301: window_set_active_pane(w, wp);
302: server_clear_identify(c);
303: continue;
304: }
305:
306: status_message_clear(c);
307: server_clear_identify(c);
308: if (c->prompt_string != NULL) {
309: status_prompt_key(c, key);
310: continue;
311: }
312:
313: /* Check for mouse keys. */
314: if (key == KEYC_MOUSE) {
315: if (options_get_number(oo, "mouse-select-pane")) {
316: window_set_active_at(w, mouse.x, mouse.y);
317: wp = w->active;
318: }
319: window_pane_mouse(wp, c, &mouse);
320: continue;
321: }
322:
323: /* Is this a prefix key? */
324: isprefix = 0;
325: for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
326: if (key == ARRAY_ITEM(keylist, i)) {
327: isprefix = 1;
328: break;
329: }
330: }
331:
332: /* No previous prefix key. */
333: if (!(c->flags & CLIENT_PREFIX)) {
334: if (isprefix)
335: c->flags |= CLIENT_PREFIX;
336: else {
337: /* Try as a non-prefix key binding. */
338: if ((bd = key_bindings_lookup(key)) == NULL)
339: window_pane_key(wp, c, key);
340: else
341: key_bindings_dispatch(bd, c);
342: }
343: continue;
344: }
345:
346: /* Prefix key already pressed. Reset prefix and lookup key. */
347: c->flags &= ~CLIENT_PREFIX;
348: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
349: /* If repeating, treat this as a key, else ignore. */
350: if (c->flags & CLIENT_REPEAT) {
351: c->flags &= ~CLIENT_REPEAT;
352: if (isprefix)
353: c->flags |= CLIENT_PREFIX;
354: else
355: window_pane_key(wp, c, key);
356: }
357: continue;
358: }
359:
360: /* If already repeating, but this key can't repeat, skip it. */
361: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
362: c->flags &= ~CLIENT_REPEAT;
363: if (isprefix)
364: c->flags |= CLIENT_PREFIX;
365: else
366: window_pane_key(wp, c, key);
367: continue;
368: }
369:
370: /* If this key can repeat, reset the repeat flags and timer. */
371: if (xtimeout != 0 && bd->can_repeat) {
372: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
373:
1.10 nicm 374: tv_add.tv_sec = xtimeout / 1000;
375: tv_add.tv_usec = (xtimeout % 1000) * 1000L;
376: timeradd(&tv_now, &tv_add, &c->repeat_timer);
1.1 nicm 377: }
378:
379: /* Dispatch the command. */
380: key_bindings_dispatch(bd, c);
381: }
382: if (c->session == NULL)
383: return;
384: w = c->session->curw->window;
385: wp = w->active;
386: oo = &c->session->options;
387: s = wp->screen;
388:
389: /*
390: * Update cursor position and mode settings. The scroll region and
391: * attributes are cleared across poll(2) as this is the most likely
392: * time a user may interrupt tmux, for example with ~^Z in ssh(1). This
393: * is a compromise between excessive resets and likelihood of an
394: * interrupt.
395: *
396: * tty_region/tty_reset/tty_update_mode already take care of not
397: * resetting things that are already in their default state.
398: */
399: tty_region(&c->tty, 0, c->tty.sy - 1);
400:
401: status = options_get_number(oo, "status");
402: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
403: tty_cursor(&c->tty, 0, 0);
404: else
405: tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
406:
407: mode = s->mode;
408: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
409: options_get_number(oo, "mouse-select-pane"))
410: mode |= MODE_MOUSE;
411: tty_update_mode(&c->tty, mode);
412: tty_reset(&c->tty);
413: }
414:
415: /* Check for client redraws. */
416: void
417: server_client_check_redraw(struct client *c)
418: {
419: struct session *s = c->session;
420: struct window_pane *wp;
421: int flags, redraw;
422:
423: flags = c->tty.flags & TTY_FREEZE;
424: c->tty.flags &= ~TTY_FREEZE;
425:
426: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
427: if (options_get_number(&s->options, "set-titles"))
428: server_client_set_title(c);
1.12 nicm 429:
1.1 nicm 430: if (c->message_string != NULL)
431: redraw = status_message_redraw(c);
432: else if (c->prompt_string != NULL)
433: redraw = status_prompt_redraw(c);
434: else
435: redraw = status_redraw(c);
436: if (!redraw)
437: c->flags &= ~CLIENT_STATUS;
438: }
439:
440: if (c->flags & CLIENT_REDRAW) {
441: screen_redraw_screen(c, 0);
442: c->flags &= ~CLIENT_STATUS;
443: } else {
444: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
445: if (wp->flags & PANE_REDRAW)
446: screen_redraw_pane(c, wp);
447: }
448: }
449:
450: if (c->flags & CLIENT_STATUS)
451: screen_redraw_screen(c, 1);
452:
453: c->tty.flags |= flags;
454:
455: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS);
456: }
457:
458: /* Set client title. */
459: void
460: server_client_set_title(struct client *c)
461: {
462: struct session *s = c->session;
463: const char *template;
464: char *title;
465:
466: template = options_get_string(&s->options, "set-titles-string");
467:
468: title = status_replace(c, template, time(NULL));
469: if (c->title == NULL || strcmp(title, c->title) != 0) {
470: if (c->title != NULL)
471: xfree(c->title);
472: c->title = xstrdup(title);
473: tty_set_title(&c->tty, c->title);
474: }
475: xfree(title);
476: }
477:
478: /* Dispatch message from client. */
479: int
480: server_client_msg_dispatch(struct client *c)
481: {
482: struct imsg imsg;
483: struct msg_command_data commanddata;
484: struct msg_identify_data identifydata;
485: struct msg_environ_data environdata;
486: ssize_t n, datalen;
487:
1.8 deraadt 488: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
489: return (-1);
1.1 nicm 490:
491: for (;;) {
492: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
493: return (-1);
494: if (n == 0)
495: return (0);
496: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
497:
498: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
499: server_write_client(c, MSG_VERSION, NULL, 0);
500: c->flags |= CLIENT_BAD;
501: imsg_free(&imsg);
502: continue;
503: }
504:
505: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
506: switch (imsg.hdr.type) {
507: case MSG_COMMAND:
508: if (datalen != sizeof commanddata)
509: fatalx("bad MSG_COMMAND size");
510: memcpy(&commanddata, imsg.data, sizeof commanddata);
511:
512: server_client_msg_command(c, &commanddata);
513: break;
514: case MSG_IDENTIFY:
515: if (datalen != sizeof identifydata)
516: fatalx("bad MSG_IDENTIFY size");
517: if (imsg.fd == -1)
518: fatalx("MSG_IDENTIFY missing fd");
519: memcpy(&identifydata, imsg.data, sizeof identifydata);
520:
521: server_client_msg_identify(c, &identifydata, imsg.fd);
522: break;
523: case MSG_RESIZE:
524: if (datalen != 0)
525: fatalx("bad MSG_RESIZE size");
526:
527: tty_resize(&c->tty);
528: recalculate_sizes();
529: server_redraw_client(c);
530: break;
531: case MSG_EXITING:
532: if (datalen != 0)
533: fatalx("bad MSG_EXITING size");
534:
535: c->session = NULL;
536: tty_close(&c->tty);
537: server_write_client(c, MSG_EXITED, NULL, 0);
538: break;
539: case MSG_WAKEUP:
540: case MSG_UNLOCK:
541: if (datalen != 0)
542: fatalx("bad MSG_WAKEUP size");
543:
544: if (!(c->flags & CLIENT_SUSPENDED))
545: break;
546: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 547:
1.11 nicm 548: if (gettimeofday(&c->activity_time, NULL) != 0)
549: fatal("gettimeofday");
550: if (c->session != NULL) {
551: memcpy(&c->session->activity_time,
552: &c->activity_time,
553: sizeof c->session->activity_time);
554: }
1.10 nicm 555:
1.1 nicm 556: tty_start_tty(&c->tty);
557: server_redraw_client(c);
558: recalculate_sizes();
559: break;
560: case MSG_ENVIRON:
561: if (datalen != sizeof environdata)
562: fatalx("bad MSG_ENVIRON size");
563: memcpy(&environdata, imsg.data, sizeof environdata);
564:
565: environdata.var[(sizeof environdata.var) - 1] = '\0';
566: if (strchr(environdata.var, '=') != NULL)
567: environ_put(&c->environ, environdata.var);
568: break;
569: case MSG_SHELL:
570: if (datalen != 0)
571: fatalx("bad MSG_SHELL size");
572:
573: server_client_msg_shell(c);
574: break;
575: default:
576: fatalx("unexpected message");
577: }
578:
579: imsg_free(&imsg);
580: }
581: }
582:
583: /* Callback to send error message to client. */
584: void printflike2
585: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
586: {
587: struct msg_print_data data;
588: va_list ap;
589:
590: va_start(ap, fmt);
591: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
592: va_end(ap);
593:
594: server_write_client(ctx->cmdclient, MSG_ERROR, &data, sizeof data);
595: }
596:
597: /* Callback to send print message to client. */
598: void printflike2
599: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
600: {
601: struct msg_print_data data;
602: va_list ap;
603:
604: va_start(ap, fmt);
605: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
606: va_end(ap);
607:
608: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
609: }
610:
611: /* Callback to send print message to client, if not quiet. */
612: void printflike2
613: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
614: {
615: struct msg_print_data data;
616: va_list ap;
617:
618: if (be_quiet)
619: return;
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: /* Handle command message. */
629: void
630: server_client_msg_command(struct client *c, struct msg_command_data *data)
631: {
632: struct cmd_ctx ctx;
633: struct cmd_list *cmdlist = NULL;
634: struct cmd *cmd;
635: int argc;
636: char **argv, *cause;
637:
638: ctx.error = server_client_msg_error;
639: ctx.print = server_client_msg_print;
640: ctx.info = server_client_msg_info;
641:
642: ctx.msgdata = data;
643: ctx.curclient = NULL;
644:
645: ctx.cmdclient = c;
646:
647: argc = data->argc;
648: data->argv[(sizeof data->argv) - 1] = '\0';
649: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
650: server_client_msg_error(&ctx, "command too long");
651: goto error;
652: }
653:
654: if (argc == 0) {
655: argc = 1;
656: argv = xcalloc(1, sizeof *argv);
657: *argv = xstrdup("new-session");
658: }
659:
660: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
661: server_client_msg_error(&ctx, "%s", cause);
662: cmd_free_argv(argc, argv);
663: goto error;
664: }
665: cmd_free_argv(argc, argv);
666:
667: if (data->pid != -1) {
668: TAILQ_FOREACH(cmd, cmdlist, qentry) {
669: if (cmd->entry->flags & CMD_CANTNEST) {
670: server_client_msg_error(&ctx,
671: "sessions should be nested with care. "
672: "unset $TMUX to force");
673: goto error;
674: }
675: }
676: }
677:
678: if (cmd_list_exec(cmdlist, &ctx) != 1)
679: server_write_client(c, MSG_EXIT, NULL, 0);
680: cmd_list_free(cmdlist);
681: return;
682:
683: error:
684: if (cmdlist != NULL)
685: cmd_list_free(cmdlist);
686: server_write_client(c, MSG_EXIT, NULL, 0);
687: }
688:
689: /* Handle identify message. */
690: void
691: server_client_msg_identify(
692: struct client *c, struct msg_identify_data *data, int fd)
693: {
694: c->cwd = NULL;
695: data->cwd[(sizeof data->cwd) - 1] = '\0';
696: if (*data->cwd != '\0')
697: c->cwd = xstrdup(data->cwd);
698:
699: data->term[(sizeof data->term) - 1] = '\0';
700: tty_init(&c->tty, fd, data->term);
701: if (data->flags & IDENTIFY_UTF8)
702: c->tty.flags |= TTY_UTF8;
703: if (data->flags & IDENTIFY_256COLOURS)
704: c->tty.term_flags |= TERM_256COLOURS;
705: else if (data->flags & IDENTIFY_88COLOURS)
706: c->tty.term_flags |= TERM_88COLOURS;
707:
708: tty_resize(&c->tty);
709:
710: c->flags |= CLIENT_TERMINAL;
711: }
712:
713: /* Handle shell message. */
714: void
715: server_client_msg_shell(struct client *c)
716: {
717: struct msg_shell_data data;
718: const char *shell;
719:
720: shell = options_get_string(&global_s_options, "default-shell");
721:
722: if (*shell == '\0' || areshell(shell))
723: shell = _PATH_BSHELL;
724: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
725: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
726:
727: server_write_client(c, MSG_SHELL, &data, sizeof data);
728: c->flags |= CLIENT_BAD; /* it will die after exec */
729: }