Annotation of src/usr.bin/tmux/server-client.c, Revision 1.19
1.19 ! nicm 1: /* $OpenBSD: server-client.c,v 1.18 2009/11/05 08:45:08 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;
200: u_int i, interval;
201:
202: if (gettimeofday(&tv, NULL) != 0)
203: fatal("gettimeofday failed");
204:
205: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
206: c = ARRAY_ITEM(&clients, i);
207: if (c == NULL || c->session == NULL)
208: continue;
209: if (c->message_string != NULL || c->prompt_string != NULL) {
210: /*
211: * Don't need timed redraw for messages/prompts so bail
212: * now. The status timer isn't reset when they are
213: * redrawn anyway.
214: */
215: continue;
216: }
217: s = c->session;
218:
219: if (!options_get_number(&s->options, "status"))
220: continue;
221: interval = options_get_number(&s->options, "status-interval");
222:
223: if (tv.tv_sec - c->status_timer.tv_sec >= interval) {
224: RB_FOREACH(job, jobs, &c->status_jobs)
225: job_run(job);
226: c->flags |= CLIENT_STATUS;
227: }
228: }
229: }
230:
1.18 nicm 231: /* Handle data key input from client. */
232: void
233: server_client_handle_key(int key, struct mouse_event *mouse, void *data)
234: {
235: struct client *c = data;
236: struct session *s;
237: struct window *w;
238: struct window_pane *wp;
239: struct options *oo;
240: struct timeval tv;
241: struct key_binding *bd;
242: struct keylist *keylist;
243: int xtimeout, isprefix;
244: u_int i;
245:
246: /* Check the client is good to accept input. */
247: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
248: return;
249: if (c->session == NULL)
250: return;
251: s = c->session;
252:
253: /* Update the activity timer. */
254: if (gettimeofday(&c->activity_time, NULL) != 0)
255: fatal("gettimeofday failed");
256: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
257:
258: w = c->session->curw->window;
259: wp = w->active;
260: oo = &c->session->options;
261:
262: /* Special case: number keys jump to pane in identify mode. */
263: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
264: wp = window_pane_at_index(w, key - '0');
265: if (wp != NULL && window_pane_visible(wp))
266: window_set_active_pane(w, wp);
267: server_clear_identify(c);
268: return;
269: }
270:
271: /* Handle status line. */
272: status_message_clear(c);
273: server_clear_identify(c);
274: if (c->prompt_string != NULL) {
275: status_prompt_key(c, key);
276: return;
277: }
278:
279: /* Check for mouse keys. */
280: if (key == KEYC_MOUSE) {
281: if (options_get_number(oo, "mouse-select-pane")) {
282: window_set_active_at(w, mouse->x, mouse->y);
283: wp = w->active;
284: }
285: window_pane_mouse(wp, c, mouse);
286: return;
287: }
288:
289: /* Is this a prefix key? */
290: keylist = options_get_data(&c->session->options, "prefix");
291: isprefix = 0;
292: for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
293: if (key == ARRAY_ITEM(keylist, i)) {
294: isprefix = 1;
295: break;
296: }
297: }
298:
299: /* No previous prefix key. */
300: if (!(c->flags & CLIENT_PREFIX)) {
301: if (isprefix)
302: c->flags |= CLIENT_PREFIX;
303: else {
304: /* Try as a non-prefix key binding. */
305: if ((bd = key_bindings_lookup(key)) == NULL)
306: window_pane_key(wp, c, key);
307: else
308: key_bindings_dispatch(bd, c);
309: }
310: return;
311: }
312:
313: /* Prefix key already pressed. Reset prefix and lookup key. */
314: c->flags &= ~CLIENT_PREFIX;
315: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
316: /* If repeating, treat this as a key, else ignore. */
317: if (c->flags & CLIENT_REPEAT) {
318: c->flags &= ~CLIENT_REPEAT;
319: if (isprefix)
320: c->flags |= CLIENT_PREFIX;
321: else
322: window_pane_key(wp, c, key);
323: }
324: return;
325: }
326:
327: /* If already repeating, but this key can't repeat, skip it. */
328: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
329: c->flags &= ~CLIENT_REPEAT;
330: if (isprefix)
331: c->flags |= CLIENT_PREFIX;
332: else
333: window_pane_key(wp, c, key);
334: return;
335: }
336:
337: /* If this key can repeat, reset the repeat flags and timer. */
338: xtimeout = options_get_number(&c->session->options, "repeat-time");
339: if (xtimeout != 0 && bd->can_repeat) {
340: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
341:
342: tv.tv_sec = xtimeout / 1000;
343: tv.tv_usec = (xtimeout % 1000) * 1000L;
344: evtimer_del(&c->repeat_timer);
345: evtimer_add(&c->repeat_timer, &tv);
346: }
347:
348: /* Dispatch the command. */
349: key_bindings_dispatch(bd, c);
350: }
351:
1.2 nicm 352: /* Client functions that need to happen every loop. */
353: void
354: server_client_loop(void)
355: {
356: struct client *c;
357: struct window *w;
358: struct window_pane *wp;
359: u_int i;
360:
361: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
362: c = ARRAY_ITEM(&clients, i);
363: if (c == NULL || c->session == NULL)
364: continue;
365:
1.18 nicm 366: server_client_check_redraw(c);
367: server_client_reset_state(c);
1.2 nicm 368: }
369:
370: /*
371: * Any windows will have been redrawn as part of clients, so clear
372: * their flags now.
373: */
374: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
375: w = ARRAY_ITEM(&windows, i);
376: if (w == NULL)
377: continue;
378:
379: w->flags &= ~WINDOW_REDRAW;
380: TAILQ_FOREACH(wp, &w->panes, entry)
381: wp->flags &= ~PANE_REDRAW;
382: }
383: }
384:
1.18 nicm 385: /*
386: * Update cursor position and mode settings. The scroll region and attributes
387: * are cleared when idle (waiting for an event) as this is the most likely time
388: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
389: * compromise between excessive resets and likelihood of an interrupt.
390: *
391: * tty_region/tty_reset/tty_update_mode already take care of not resetting
392: * things that are already in their default state.
393: */
1.1 nicm 394: void
1.18 nicm 395: server_client_reset_state(struct client *c)
1.1 nicm 396: {
1.18 nicm 397: struct window *w = c->session->curw->window;
398: struct window_pane *wp = w->active;
399: struct screen *s = wp->screen;
400: struct options *oo = &c->session->options;
401: int status, mode;
1.1 nicm 402:
403: tty_region(&c->tty, 0, c->tty.sy - 1);
404:
405: status = options_get_number(oo, "status");
406: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
407: tty_cursor(&c->tty, 0, 0);
408: else
409: tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
410:
411: mode = s->mode;
412: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
413: options_get_number(oo, "mouse-select-pane"))
414: mode |= MODE_MOUSE;
415: tty_update_mode(&c->tty, mode);
416: tty_reset(&c->tty);
1.17 nicm 417: }
418:
419: /* Repeat time callback. */
420: void
421: server_client_repeat_timer(unused int fd, unused short events, void *data)
422: {
423: struct client *c = data;
424:
425: if (c->flags & CLIENT_REPEAT)
426: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.1 nicm 427: }
428:
429: /* Check for client redraws. */
430: void
431: server_client_check_redraw(struct client *c)
432: {
433: struct session *s = c->session;
434: struct window_pane *wp;
435: int flags, redraw;
436:
437: flags = c->tty.flags & TTY_FREEZE;
438: c->tty.flags &= ~TTY_FREEZE;
439:
440: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
441: if (options_get_number(&s->options, "set-titles"))
442: server_client_set_title(c);
1.12 nicm 443:
1.1 nicm 444: if (c->message_string != NULL)
445: redraw = status_message_redraw(c);
446: else if (c->prompt_string != NULL)
447: redraw = status_prompt_redraw(c);
448: else
449: redraw = status_redraw(c);
450: if (!redraw)
451: c->flags &= ~CLIENT_STATUS;
452: }
453:
454: if (c->flags & CLIENT_REDRAW) {
455: screen_redraw_screen(c, 0);
456: c->flags &= ~CLIENT_STATUS;
457: } else {
458: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
459: if (wp->flags & PANE_REDRAW)
460: screen_redraw_pane(c, wp);
461: }
462: }
463:
464: if (c->flags & CLIENT_STATUS)
465: screen_redraw_screen(c, 1);
466:
467: c->tty.flags |= flags;
468:
469: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS);
470: }
471:
472: /* Set client title. */
473: void
474: server_client_set_title(struct client *c)
475: {
476: struct session *s = c->session;
477: const char *template;
478: char *title;
479:
480: template = options_get_string(&s->options, "set-titles-string");
481:
482: title = status_replace(c, template, time(NULL));
483: if (c->title == NULL || strcmp(title, c->title) != 0) {
484: if (c->title != NULL)
485: xfree(c->title);
486: c->title = xstrdup(title);
487: tty_set_title(&c->tty, c->title);
488: }
489: xfree(title);
490: }
491:
492: /* Dispatch message from client. */
493: int
494: server_client_msg_dispatch(struct client *c)
495: {
496: struct imsg imsg;
497: struct msg_command_data commanddata;
498: struct msg_identify_data identifydata;
499: struct msg_environ_data environdata;
500: ssize_t n, datalen;
501:
1.8 deraadt 502: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
503: return (-1);
1.1 nicm 504:
505: for (;;) {
506: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
507: return (-1);
508: if (n == 0)
509: return (0);
510: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
511:
512: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
513: server_write_client(c, MSG_VERSION, NULL, 0);
514: c->flags |= CLIENT_BAD;
515: imsg_free(&imsg);
516: continue;
517: }
518:
519: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
520: switch (imsg.hdr.type) {
521: case MSG_COMMAND:
522: if (datalen != sizeof commanddata)
523: fatalx("bad MSG_COMMAND size");
524: memcpy(&commanddata, imsg.data, sizeof commanddata);
525:
526: server_client_msg_command(c, &commanddata);
527: break;
528: case MSG_IDENTIFY:
529: if (datalen != sizeof identifydata)
530: fatalx("bad MSG_IDENTIFY size");
531: if (imsg.fd == -1)
532: fatalx("MSG_IDENTIFY missing fd");
533: memcpy(&identifydata, imsg.data, sizeof identifydata);
534:
535: server_client_msg_identify(c, &identifydata, imsg.fd);
536: break;
537: case MSG_RESIZE:
538: if (datalen != 0)
539: fatalx("bad MSG_RESIZE size");
540:
541: tty_resize(&c->tty);
542: recalculate_sizes();
543: server_redraw_client(c);
544: break;
545: case MSG_EXITING:
546: if (datalen != 0)
547: fatalx("bad MSG_EXITING size");
548:
549: c->session = NULL;
550: tty_close(&c->tty);
551: server_write_client(c, MSG_EXITED, NULL, 0);
552: break;
553: case MSG_WAKEUP:
554: case MSG_UNLOCK:
555: if (datalen != 0)
556: fatalx("bad MSG_WAKEUP size");
557:
558: if (!(c->flags & CLIENT_SUSPENDED))
559: break;
560: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 561:
1.11 nicm 562: if (gettimeofday(&c->activity_time, NULL) != 0)
563: fatal("gettimeofday");
564: if (c->session != NULL) {
565: memcpy(&c->session->activity_time,
566: &c->activity_time,
567: sizeof c->session->activity_time);
568: }
1.10 nicm 569:
1.1 nicm 570: tty_start_tty(&c->tty);
571: server_redraw_client(c);
572: recalculate_sizes();
573: break;
574: case MSG_ENVIRON:
575: if (datalen != sizeof environdata)
576: fatalx("bad MSG_ENVIRON size");
577: memcpy(&environdata, imsg.data, sizeof environdata);
578:
579: environdata.var[(sizeof environdata.var) - 1] = '\0';
580: if (strchr(environdata.var, '=') != NULL)
581: environ_put(&c->environ, environdata.var);
582: break;
583: case MSG_SHELL:
584: if (datalen != 0)
585: fatalx("bad MSG_SHELL size");
586:
587: server_client_msg_shell(c);
588: break;
589: default:
590: fatalx("unexpected message");
591: }
592:
593: imsg_free(&imsg);
594: }
595: }
596:
597: /* Callback to send error message to client. */
598: void printflike2
599: server_client_msg_error(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_ERROR, &data, sizeof data);
609: }
610:
611: /* Callback to send print message to client. */
612: void printflike2
613: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
614: {
615: struct msg_print_data data;
616: va_list ap;
617:
618: va_start(ap, fmt);
619: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
620: va_end(ap);
621:
622: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
623: }
624:
625: /* Callback to send print message to client, if not quiet. */
626: void printflike2
627: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
628: {
629: struct msg_print_data data;
630: va_list ap;
631:
632: if (be_quiet)
633: return;
634:
635: va_start(ap, fmt);
636: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
637: va_end(ap);
638:
639: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
640: }
641:
642: /* Handle command message. */
643: void
644: server_client_msg_command(struct client *c, struct msg_command_data *data)
645: {
646: struct cmd_ctx ctx;
647: struct cmd_list *cmdlist = NULL;
648: struct cmd *cmd;
649: int argc;
650: char **argv, *cause;
651:
652: ctx.error = server_client_msg_error;
653: ctx.print = server_client_msg_print;
654: ctx.info = server_client_msg_info;
655:
656: ctx.msgdata = data;
657: ctx.curclient = NULL;
658:
659: ctx.cmdclient = c;
660:
661: argc = data->argc;
662: data->argv[(sizeof data->argv) - 1] = '\0';
663: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
664: server_client_msg_error(&ctx, "command too long");
665: goto error;
666: }
667:
668: if (argc == 0) {
669: argc = 1;
670: argv = xcalloc(1, sizeof *argv);
671: *argv = xstrdup("new-session");
672: }
673:
674: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
675: server_client_msg_error(&ctx, "%s", cause);
676: cmd_free_argv(argc, argv);
677: goto error;
678: }
679: cmd_free_argv(argc, argv);
680:
681: if (data->pid != -1) {
682: TAILQ_FOREACH(cmd, cmdlist, qentry) {
683: if (cmd->entry->flags & CMD_CANTNEST) {
684: server_client_msg_error(&ctx,
685: "sessions should be nested with care. "
686: "unset $TMUX to force");
687: goto error;
688: }
689: }
690: }
691:
692: if (cmd_list_exec(cmdlist, &ctx) != 1)
693: server_write_client(c, MSG_EXIT, NULL, 0);
694: cmd_list_free(cmdlist);
695: return;
696:
697: error:
698: if (cmdlist != NULL)
699: cmd_list_free(cmdlist);
700: server_write_client(c, MSG_EXIT, NULL, 0);
701: }
702:
703: /* Handle identify message. */
704: void
705: server_client_msg_identify(
706: struct client *c, struct msg_identify_data *data, int fd)
707: {
708: c->cwd = NULL;
709: data->cwd[(sizeof data->cwd) - 1] = '\0';
710: if (*data->cwd != '\0')
711: c->cwd = xstrdup(data->cwd);
712:
713: data->term[(sizeof data->term) - 1] = '\0';
714: tty_init(&c->tty, fd, data->term);
715: if (data->flags & IDENTIFY_UTF8)
716: c->tty.flags |= TTY_UTF8;
717: if (data->flags & IDENTIFY_256COLOURS)
718: c->tty.term_flags |= TERM_256COLOURS;
719: else if (data->flags & IDENTIFY_88COLOURS)
720: c->tty.term_flags |= TERM_88COLOURS;
1.18 nicm 721: c->tty.key_callback = server_client_handle_key;
722: c->tty.key_data = c;
1.1 nicm 723:
724: tty_resize(&c->tty);
725:
726: c->flags |= CLIENT_TERMINAL;
727: }
728:
729: /* Handle shell message. */
730: void
731: server_client_msg_shell(struct client *c)
732: {
733: struct msg_shell_data data;
734: const char *shell;
735:
736: shell = options_get_string(&global_s_options, "default-shell");
737:
738: if (*shell == '\0' || areshell(shell))
739: shell = _PATH_BSHELL;
740: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
741: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
742:
743: server_write_client(c, MSG_SHELL, &data, sizeof data);
744: c->flags |= CLIENT_BAD; /* it will die after exec */
745: }
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