Annotation of src/usr.bin/tmux/server-client.c, Revision 1.29
1.29 ! nicm 1: /* $OpenBSD: server-client.c,v 1.28 2010/01/08 09:14:15 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(
1.25 nicm 39: struct client *, struct msg_identify_data *, int);
1.1 nicm 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);
1.25 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;
1.21 nicm 83: ARRAY_INIT(&c->message_log);
1.1 nicm 84:
85: c->prompt_string = NULL;
86: c->prompt_buffer = NULL;
87: c->prompt_index = 0;
88:
1.17 nicm 89: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
90:
1.1 nicm 91: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
92: if (ARRAY_ITEM(&clients, i) == NULL) {
93: ARRAY_SET(&clients, i, c);
94: return;
95: }
96: }
97: ARRAY_ADD(&clients, c);
98: log_debug("new client %d", fd);
99: }
100:
101: /* Lost a client. */
102: void
103: server_client_lost(struct client *c)
104: {
1.21 nicm 105: struct message_entry *msg;
106: u_int i;
1.1 nicm 107:
108: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
109: if (ARRAY_ITEM(&clients, i) == c)
110: ARRAY_SET(&clients, i, NULL);
111: }
112: log_debug("lost client %d", c->ibuf.fd);
113:
114: /*
115: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
116: * and tty_free might close an unrelated fd.
117: */
118: if (c->flags & CLIENT_TERMINAL)
119: tty_free(&c->tty);
120:
121: screen_free(&c->status);
122: job_tree_free(&c->status_jobs);
123:
124: if (c->title != NULL)
125: xfree(c->title);
126:
1.17 nicm 127: evtimer_del(&c->repeat_timer);
128:
1.15 nicm 129: evtimer_del(&c->identify_timer);
130:
1.1 nicm 131: if (c->message_string != NULL)
132: xfree(c->message_string);
1.15 nicm 133: evtimer_del(&c->message_timer);
1.21 nicm 134: for (i = 0; i < ARRAY_LENGTH(&c->message_log); i++) {
135: msg = &ARRAY_ITEM(&c->message_log, i);
136: xfree(msg->msg);
137: }
138: ARRAY_FREE(&c->message_log);
1.1 nicm 139:
140: if (c->prompt_string != NULL)
141: xfree(c->prompt_string);
142: if (c->prompt_buffer != NULL)
143: xfree(c->prompt_buffer);
144: for (i = 0; i < ARRAY_LENGTH(&c->prompt_hdata); i++)
145: xfree(ARRAY_ITEM(&c->prompt_hdata, i));
146: ARRAY_FREE(&c->prompt_hdata);
147:
148: if (c->cwd != NULL)
149: xfree(c->cwd);
150:
151: close(c->ibuf.fd);
152: imsg_clear(&c->ibuf);
1.12 nicm 153: event_del(&c->event);
1.13 nicm 154:
1.1 nicm 155: for (i = 0; i < ARRAY_LENGTH(&dead_clients); i++) {
156: if (ARRAY_ITEM(&dead_clients, i) == NULL) {
157: ARRAY_SET(&dead_clients, i, c);
158: break;
159: }
160: }
161: if (i == ARRAY_LENGTH(&dead_clients))
162: ARRAY_ADD(&dead_clients, c);
163: c->flags |= CLIENT_DEAD;
164:
165: recalculate_sizes();
1.19 nicm 166: server_update_socket();
1.9 nicm 167: }
168:
1.1 nicm 169: /* Process a single client event. */
170: void
1.12 nicm 171: server_client_callback(int fd, short events, void *data)
1.1 nicm 172: {
173: struct client *c = data;
1.7 nicm 174:
175: if (c->flags & CLIENT_DEAD)
176: return;
1.1 nicm 177:
178: if (fd == c->ibuf.fd) {
1.12 nicm 179: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) < 0)
1.1 nicm 180: goto client_lost;
181:
182: if (c->flags & CLIENT_BAD) {
183: if (c->ibuf.w.queued == 0)
184: goto client_lost;
185: return;
186: }
187:
1.12 nicm 188: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 189: goto client_lost;
190: }
1.14 nicm 191:
1.25 nicm 192: server_update_event(c);
1.1 nicm 193: return;
194:
195: client_lost:
196: server_client_lost(c);
197: }
198:
1.16 nicm 199: /* Handle client status timer. */
200: void
201: server_client_status_timer(void)
202: {
203: struct client *c;
204: struct session *s;
205: struct job *job;
206: struct timeval tv;
1.20 nicm 207: u_int i;
208: int interval;
209: time_t difference;
1.16 nicm 210:
211: if (gettimeofday(&tv, NULL) != 0)
212: fatal("gettimeofday failed");
213:
214: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
215: c = ARRAY_ITEM(&clients, i);
216: if (c == NULL || c->session == NULL)
217: continue;
218: if (c->message_string != NULL || c->prompt_string != NULL) {
219: /*
220: * Don't need timed redraw for messages/prompts so bail
221: * now. The status timer isn't reset when they are
222: * redrawn anyway.
223: */
224: continue;
225: }
226: s = c->session;
227:
228: if (!options_get_number(&s->options, "status"))
229: continue;
230: interval = options_get_number(&s->options, "status-interval");
231:
1.20 nicm 232: difference = tv.tv_sec - c->status_timer.tv_sec;
233: if (difference >= interval) {
1.16 nicm 234: RB_FOREACH(job, jobs, &c->status_jobs)
1.20 nicm 235: job_run(job);
1.16 nicm 236: c->flags |= CLIENT_STATUS;
237: }
238: }
239: }
240:
1.18 nicm 241: /* Handle data key input from client. */
242: void
243: server_client_handle_key(int key, struct mouse_event *mouse, void *data)
244: {
245: struct client *c = data;
246: struct session *s;
247: struct window *w;
248: struct window_pane *wp;
249: struct options *oo;
250: struct timeval tv;
251: struct key_binding *bd;
252: struct keylist *keylist;
253: int xtimeout, isprefix;
254: u_int i;
255:
256: /* Check the client is good to accept input. */
257: if ((c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
258: return;
259: if (c->session == NULL)
260: return;
261: s = c->session;
262:
263: /* Update the activity timer. */
264: if (gettimeofday(&c->activity_time, NULL) != 0)
265: fatal("gettimeofday failed");
266: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
267:
268: w = c->session->curw->window;
269: wp = w->active;
270: oo = &c->session->options;
271:
272: /* Special case: number keys jump to pane in identify mode. */
1.25 nicm 273: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.18 nicm 274: wp = window_pane_at_index(w, key - '0');
275: if (wp != NULL && window_pane_visible(wp))
276: window_set_active_pane(w, wp);
277: server_clear_identify(c);
278: return;
279: }
280:
281: /* Handle status line. */
282: status_message_clear(c);
283: server_clear_identify(c);
284: if (c->prompt_string != NULL) {
285: status_prompt_key(c, key);
286: return;
287: }
288:
289: /* Check for mouse keys. */
290: if (key == KEYC_MOUSE) {
291: if (options_get_number(oo, "mouse-select-pane")) {
292: window_set_active_at(w, mouse->x, mouse->y);
1.28 nicm 293: server_redraw_window_borders(w);
1.18 nicm 294: wp = w->active;
295: }
296: window_pane_mouse(wp, c, mouse);
297: return;
298: }
299:
300: /* Is this a prefix key? */
301: keylist = options_get_data(&c->session->options, "prefix");
302: isprefix = 0;
303: for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
304: if (key == ARRAY_ITEM(keylist, i)) {
305: isprefix = 1;
306: break;
307: }
308: }
309:
310: /* No previous prefix key. */
311: if (!(c->flags & CLIENT_PREFIX)) {
312: if (isprefix)
313: c->flags |= CLIENT_PREFIX;
314: else {
315: /* Try as a non-prefix key binding. */
316: if ((bd = key_bindings_lookup(key)) == NULL)
317: window_pane_key(wp, c, key);
318: else
319: key_bindings_dispatch(bd, c);
320: }
321: return;
322: }
323:
324: /* Prefix key already pressed. Reset prefix and lookup key. */
325: c->flags &= ~CLIENT_PREFIX;
326: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
327: /* If repeating, treat this as a key, else ignore. */
328: if (c->flags & CLIENT_REPEAT) {
329: c->flags &= ~CLIENT_REPEAT;
330: if (isprefix)
331: c->flags |= CLIENT_PREFIX;
332: else
333: window_pane_key(wp, c, key);
334: }
335: return;
336: }
337:
338: /* If already repeating, but this key can't repeat, skip it. */
339: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
340: c->flags &= ~CLIENT_REPEAT;
341: if (isprefix)
342: c->flags |= CLIENT_PREFIX;
343: else
344: window_pane_key(wp, c, key);
345: return;
346: }
347:
348: /* If this key can repeat, reset the repeat flags and timer. */
349: xtimeout = options_get_number(&c->session->options, "repeat-time");
350: if (xtimeout != 0 && bd->can_repeat) {
351: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 352:
1.18 nicm 353: tv.tv_sec = xtimeout / 1000;
354: tv.tv_usec = (xtimeout % 1000) * 1000L;
355: evtimer_del(&c->repeat_timer);
356: evtimer_add(&c->repeat_timer, &tv);
357: }
358:
359: /* Dispatch the command. */
360: key_bindings_dispatch(bd, c);
361: }
362:
1.2 nicm 363: /* Client functions that need to happen every loop. */
364: void
365: server_client_loop(void)
366: {
367: struct client *c;
368: struct window *w;
369: struct window_pane *wp;
370: u_int i;
371:
372: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
373: c = ARRAY_ITEM(&clients, i);
374: if (c == NULL || c->session == NULL)
375: continue;
376:
1.18 nicm 377: server_client_check_redraw(c);
378: server_client_reset_state(c);
1.2 nicm 379: }
380:
381: /*
382: * Any windows will have been redrawn as part of clients, so clear
383: * their flags now.
384: */
385: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
386: w = ARRAY_ITEM(&windows, i);
387: if (w == NULL)
388: continue;
389:
390: w->flags &= ~WINDOW_REDRAW;
391: TAILQ_FOREACH(wp, &w->panes, entry)
392: wp->flags &= ~PANE_REDRAW;
393: }
394: }
395:
1.18 nicm 396: /*
397: * Update cursor position and mode settings. The scroll region and attributes
398: * are cleared when idle (waiting for an event) as this is the most likely time
399: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
400: * compromise between excessive resets and likelihood of an interrupt.
401: *
402: * tty_region/tty_reset/tty_update_mode already take care of not resetting
403: * things that are already in their default state.
404: */
1.1 nicm 405: void
1.18 nicm 406: server_client_reset_state(struct client *c)
1.1 nicm 407: {
1.18 nicm 408: struct window *w = c->session->curw->window;
409: struct window_pane *wp = w->active;
410: struct screen *s = wp->screen;
411: struct options *oo = &c->session->options;
412: int status, mode;
1.1 nicm 413:
414: tty_region(&c->tty, 0, c->tty.sy - 1);
415:
416: status = options_get_number(oo, "status");
417: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
418: tty_cursor(&c->tty, 0, 0);
419: else
420: tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
421:
422: mode = s->mode;
423: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
424: options_get_number(oo, "mouse-select-pane"))
425: mode |= MODE_MOUSE;
426: tty_update_mode(&c->tty, mode);
427: tty_reset(&c->tty);
1.17 nicm 428: }
429:
430: /* Repeat time callback. */
1.24 nicm 431: /* ARGSUSED */
1.17 nicm 432: void
433: server_client_repeat_timer(unused int fd, unused short events, void *data)
434: {
435: struct client *c = data;
436:
437: if (c->flags & CLIENT_REPEAT)
438: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.1 nicm 439: }
440:
441: /* Check for client redraws. */
442: void
443: server_client_check_redraw(struct client *c)
444: {
445: struct session *s = c->session;
446: struct window_pane *wp;
447: int flags, redraw;
448:
449: flags = c->tty.flags & TTY_FREEZE;
450: c->tty.flags &= ~TTY_FREEZE;
451:
452: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
453: if (options_get_number(&s->options, "set-titles"))
454: server_client_set_title(c);
1.12 nicm 455:
1.1 nicm 456: if (c->message_string != NULL)
457: redraw = status_message_redraw(c);
458: else if (c->prompt_string != NULL)
459: redraw = status_prompt_redraw(c);
460: else
461: redraw = status_redraw(c);
462: if (!redraw)
463: c->flags &= ~CLIENT_STATUS;
464: }
465:
466: if (c->flags & CLIENT_REDRAW) {
1.27 nicm 467: screen_redraw_screen(c, 0, 0);
468: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 469: } else {
470: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
471: if (wp->flags & PANE_REDRAW)
472: screen_redraw_pane(c, wp);
473: }
474: }
475:
1.27 nicm 476: if (c->flags & CLIENT_BORDERS)
477: screen_redraw_screen(c, 0, 1);
478:
1.1 nicm 479: if (c->flags & CLIENT_STATUS)
1.27 nicm 480: screen_redraw_screen(c, 1, 0);
1.1 nicm 481:
482: c->tty.flags |= flags;
483:
1.27 nicm 484: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 485: }
486:
487: /* Set client title. */
488: void
489: server_client_set_title(struct client *c)
490: {
491: struct session *s = c->session;
492: const char *template;
493: char *title;
494:
495: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 496:
1.23 nicm 497: title = status_replace(c, NULL, template, time(NULL), 1);
1.1 nicm 498: if (c->title == NULL || strcmp(title, c->title) != 0) {
499: if (c->title != NULL)
500: xfree(c->title);
501: c->title = xstrdup(title);
502: tty_set_title(&c->tty, c->title);
503: }
504: xfree(title);
505: }
506:
507: /* Dispatch message from client. */
508: int
509: server_client_msg_dispatch(struct client *c)
510: {
511: struct imsg imsg;
512: struct msg_command_data commanddata;
513: struct msg_identify_data identifydata;
514: struct msg_environ_data environdata;
515: ssize_t n, datalen;
516:
1.8 deraadt 517: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
518: return (-1);
1.1 nicm 519:
520: for (;;) {
521: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
522: return (-1);
523: if (n == 0)
524: return (0);
525: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
526:
527: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
528: server_write_client(c, MSG_VERSION, NULL, 0);
529: c->flags |= CLIENT_BAD;
530: imsg_free(&imsg);
531: continue;
532: }
533:
534: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
535: switch (imsg.hdr.type) {
536: case MSG_COMMAND:
537: if (datalen != sizeof commanddata)
538: fatalx("bad MSG_COMMAND size");
539: memcpy(&commanddata, imsg.data, sizeof commanddata);
540:
541: server_client_msg_command(c, &commanddata);
542: break;
543: case MSG_IDENTIFY:
544: if (datalen != sizeof identifydata)
545: fatalx("bad MSG_IDENTIFY size");
546: if (imsg.fd == -1)
547: fatalx("MSG_IDENTIFY missing fd");
548: memcpy(&identifydata, imsg.data, sizeof identifydata);
549:
550: server_client_msg_identify(c, &identifydata, imsg.fd);
551: break;
552: case MSG_RESIZE:
553: if (datalen != 0)
554: fatalx("bad MSG_RESIZE size");
555:
556: tty_resize(&c->tty);
557: recalculate_sizes();
558: server_redraw_client(c);
559: break;
560: case MSG_EXITING:
561: if (datalen != 0)
562: fatalx("bad MSG_EXITING size");
563:
564: c->session = NULL;
565: tty_close(&c->tty);
566: server_write_client(c, MSG_EXITED, NULL, 0);
567: break;
568: case MSG_WAKEUP:
569: case MSG_UNLOCK:
570: if (datalen != 0)
571: fatalx("bad MSG_WAKEUP size");
572:
573: if (!(c->flags & CLIENT_SUSPENDED))
574: break;
575: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 576:
1.11 nicm 577: if (gettimeofday(&c->activity_time, NULL) != 0)
578: fatal("gettimeofday");
579: if (c->session != NULL) {
580: memcpy(&c->session->activity_time,
581: &c->activity_time,
582: sizeof c->session->activity_time);
583: }
1.10 nicm 584:
1.1 nicm 585: tty_start_tty(&c->tty);
586: server_redraw_client(c);
587: recalculate_sizes();
588: break;
589: case MSG_ENVIRON:
590: if (datalen != sizeof environdata)
591: fatalx("bad MSG_ENVIRON size");
592: memcpy(&environdata, imsg.data, sizeof environdata);
593:
594: environdata.var[(sizeof environdata.var) - 1] = '\0';
595: if (strchr(environdata.var, '=') != NULL)
596: environ_put(&c->environ, environdata.var);
597: break;
598: case MSG_SHELL:
599: if (datalen != 0)
600: fatalx("bad MSG_SHELL size");
601:
602: server_client_msg_shell(c);
603: break;
604: default:
605: fatalx("unexpected message");
606: }
607:
608: imsg_free(&imsg);
609: }
610: }
611:
612: /* Callback to send error message to client. */
613: void printflike2
614: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
615: {
616: struct msg_print_data data;
617: va_list ap;
618:
619: va_start(ap, fmt);
620: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
621: va_end(ap);
622:
623: server_write_client(ctx->cmdclient, MSG_ERROR, &data, sizeof data);
624: }
625:
626: /* Callback to send print message to client. */
627: void printflike2
628: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
629: {
630: struct msg_print_data data;
631: va_list ap;
632:
633: va_start(ap, fmt);
634: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
635: va_end(ap);
636:
637: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
638: }
639:
640: /* Callback to send print message to client, if not quiet. */
641: void printflike2
642: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
643: {
644: struct msg_print_data data;
645: va_list ap;
646:
1.26 nicm 647: if (options_get_number(&global_options, "quiet"))
1.1 nicm 648: return;
649:
650: va_start(ap, fmt);
651: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
652: va_end(ap);
653:
654: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
655: }
656:
657: /* Handle command message. */
658: void
659: server_client_msg_command(struct client *c, struct msg_command_data *data)
660: {
661: struct cmd_ctx ctx;
662: struct cmd_list *cmdlist = NULL;
663: struct cmd *cmd;
664: int argc;
665: char **argv, *cause;
666:
667: ctx.error = server_client_msg_error;
668: ctx.print = server_client_msg_print;
669: ctx.info = server_client_msg_info;
670:
671: ctx.msgdata = data;
672: ctx.curclient = NULL;
673:
674: ctx.cmdclient = c;
675:
676: argc = data->argc;
677: data->argv[(sizeof data->argv) - 1] = '\0';
678: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
679: server_client_msg_error(&ctx, "command too long");
680: goto error;
681: }
682:
683: if (argc == 0) {
684: argc = 1;
685: argv = xcalloc(1, sizeof *argv);
686: *argv = xstrdup("new-session");
687: }
688:
689: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
690: server_client_msg_error(&ctx, "%s", cause);
691: cmd_free_argv(argc, argv);
692: goto error;
693: }
694: cmd_free_argv(argc, argv);
695:
696: if (cmd_list_exec(cmdlist, &ctx) != 1)
697: server_write_client(c, MSG_EXIT, NULL, 0);
698: cmd_list_free(cmdlist);
699: return;
700:
701: error:
702: if (cmdlist != NULL)
703: cmd_list_free(cmdlist);
704: server_write_client(c, MSG_EXIT, NULL, 0);
705: }
706:
707: /* Handle identify message. */
708: void
709: server_client_msg_identify(
710: struct client *c, struct msg_identify_data *data, int fd)
711: {
712: c->cwd = NULL;
713: data->cwd[(sizeof data->cwd) - 1] = '\0';
714: if (*data->cwd != '\0')
715: c->cwd = xstrdup(data->cwd);
716:
717: data->term[(sizeof data->term) - 1] = '\0';
718: tty_init(&c->tty, fd, data->term);
719: if (data->flags & IDENTIFY_UTF8)
720: c->tty.flags |= TTY_UTF8;
721: if (data->flags & IDENTIFY_256COLOURS)
722: c->tty.term_flags |= TERM_256COLOURS;
723: else if (data->flags & IDENTIFY_88COLOURS)
724: c->tty.term_flags |= TERM_88COLOURS;
1.18 nicm 725: c->tty.key_callback = server_client_handle_key;
726: c->tty.key_data = c;
1.1 nicm 727:
728: tty_resize(&c->tty);
729:
730: c->flags |= CLIENT_TERMINAL;
731: }
732:
733: /* Handle shell message. */
734: void
735: server_client_msg_shell(struct client *c)
736: {
737: struct msg_shell_data data;
738: const char *shell;
1.25 nicm 739:
1.1 nicm 740: shell = options_get_string(&global_s_options, "default-shell");
741:
742: if (*shell == '\0' || areshell(shell))
743: shell = _PATH_BSHELL;
744: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
745: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
1.25 nicm 746:
1.1 nicm 747: server_write_client(c, MSG_SHELL, &data, sizeof data);
748: c->flags |= CLIENT_BAD; /* it will die after exec */
749: }