Annotation of src/usr.bin/tmux/server-client.c, Revision 1.31
1.31 ! nicm 1: /* $OpenBSD: server-client.c,v 1.30 2010/02/06 22:55:31 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') {
1.30 nicm 274: if (c->flags & CLIENT_READONLY)
275: return;
1.18 nicm 276: wp = window_pane_at_index(w, key - '0');
277: if (wp != NULL && window_pane_visible(wp))
278: window_set_active_pane(w, wp);
279: server_clear_identify(c);
280: return;
281: }
282:
283: /* Handle status line. */
1.30 nicm 284: if (!(c->flags & CLIENT_READONLY)) {
285: status_message_clear(c);
286: server_clear_identify(c);
287: }
1.18 nicm 288: if (c->prompt_string != NULL) {
1.30 nicm 289: if (!(c->flags & CLIENT_READONLY))
290: status_prompt_key(c, key);
1.18 nicm 291: return;
292: }
293:
294: /* Check for mouse keys. */
295: if (key == KEYC_MOUSE) {
1.30 nicm 296: if (c->flags & CLIENT_READONLY)
297: return;
1.18 nicm 298: if (options_get_number(oo, "mouse-select-pane")) {
299: window_set_active_at(w, mouse->x, mouse->y);
1.28 nicm 300: server_redraw_window_borders(w);
1.18 nicm 301: wp = w->active;
302: }
1.31 ! nicm 303: window_pane_mouse(wp, c->session, mouse);
1.18 nicm 304: return;
305: }
306:
307: /* Is this a prefix key? */
308: keylist = options_get_data(&c->session->options, "prefix");
309: isprefix = 0;
310: for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
311: if (key == ARRAY_ITEM(keylist, i)) {
312: isprefix = 1;
313: break;
314: }
315: }
316:
317: /* No previous prefix key. */
318: if (!(c->flags & CLIENT_PREFIX)) {
319: if (isprefix)
320: c->flags |= CLIENT_PREFIX;
321: else {
322: /* Try as a non-prefix key binding. */
1.30 nicm 323: if ((bd = key_bindings_lookup(key)) == NULL) {
324: if (!(c->flags & CLIENT_READONLY))
1.31 ! nicm 325: window_pane_key(wp, c->session, key);
1.30 nicm 326: } else
1.18 nicm 327: key_bindings_dispatch(bd, c);
328: }
329: return;
330: }
331:
332: /* Prefix key already pressed. Reset prefix and lookup key. */
333: c->flags &= ~CLIENT_PREFIX;
334: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
335: /* If repeating, treat this as a key, else ignore. */
336: if (c->flags & CLIENT_REPEAT) {
337: c->flags &= ~CLIENT_REPEAT;
338: if (isprefix)
339: c->flags |= CLIENT_PREFIX;
1.30 nicm 340: else if (!(c->flags & CLIENT_READONLY))
1.31 ! nicm 341: window_pane_key(wp, c->session, key);
1.18 nicm 342: }
343: return;
344: }
345:
346: /* If already repeating, but this key can't repeat, skip it. */
347: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
348: c->flags &= ~CLIENT_REPEAT;
349: if (isprefix)
350: c->flags |= CLIENT_PREFIX;
1.30 nicm 351: else if (!(c->flags & CLIENT_READONLY))
1.31 ! nicm 352: window_pane_key(wp, c->session, key);
1.18 nicm 353: return;
354: }
355:
356: /* If this key can repeat, reset the repeat flags and timer. */
357: xtimeout = options_get_number(&c->session->options, "repeat-time");
358: if (xtimeout != 0 && bd->can_repeat) {
359: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 360:
1.18 nicm 361: tv.tv_sec = xtimeout / 1000;
362: tv.tv_usec = (xtimeout % 1000) * 1000L;
363: evtimer_del(&c->repeat_timer);
364: evtimer_add(&c->repeat_timer, &tv);
365: }
366:
367: /* Dispatch the command. */
368: key_bindings_dispatch(bd, c);
369: }
370:
1.2 nicm 371: /* Client functions that need to happen every loop. */
372: void
373: server_client_loop(void)
374: {
375: struct client *c;
376: struct window *w;
377: struct window_pane *wp;
378: u_int i;
379:
380: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
381: c = ARRAY_ITEM(&clients, i);
382: if (c == NULL || c->session == NULL)
383: continue;
384:
1.18 nicm 385: server_client_check_redraw(c);
386: server_client_reset_state(c);
1.2 nicm 387: }
388:
389: /*
390: * Any windows will have been redrawn as part of clients, so clear
391: * their flags now.
392: */
393: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
394: w = ARRAY_ITEM(&windows, i);
395: if (w == NULL)
396: continue;
397:
398: w->flags &= ~WINDOW_REDRAW;
399: TAILQ_FOREACH(wp, &w->panes, entry)
400: wp->flags &= ~PANE_REDRAW;
401: }
402: }
403:
1.18 nicm 404: /*
405: * Update cursor position and mode settings. The scroll region and attributes
406: * are cleared when idle (waiting for an event) as this is the most likely time
407: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
408: * compromise between excessive resets and likelihood of an interrupt.
409: *
410: * tty_region/tty_reset/tty_update_mode already take care of not resetting
411: * things that are already in their default state.
412: */
1.1 nicm 413: void
1.18 nicm 414: server_client_reset_state(struct client *c)
1.1 nicm 415: {
1.18 nicm 416: struct window *w = c->session->curw->window;
417: struct window_pane *wp = w->active;
418: struct screen *s = wp->screen;
419: struct options *oo = &c->session->options;
420: int status, mode;
1.1 nicm 421:
422: tty_region(&c->tty, 0, c->tty.sy - 1);
423:
424: status = options_get_number(oo, "status");
425: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
426: tty_cursor(&c->tty, 0, 0);
427: else
428: tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
429:
430: mode = s->mode;
431: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
432: options_get_number(oo, "mouse-select-pane"))
433: mode |= MODE_MOUSE;
434: tty_update_mode(&c->tty, mode);
435: tty_reset(&c->tty);
1.17 nicm 436: }
437:
438: /* Repeat time callback. */
1.24 nicm 439: /* ARGSUSED */
1.17 nicm 440: void
441: server_client_repeat_timer(unused int fd, unused short events, void *data)
442: {
443: struct client *c = data;
444:
445: if (c->flags & CLIENT_REPEAT)
446: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.1 nicm 447: }
448:
449: /* Check for client redraws. */
450: void
451: server_client_check_redraw(struct client *c)
452: {
453: struct session *s = c->session;
454: struct window_pane *wp;
455: int flags, redraw;
456:
457: flags = c->tty.flags & TTY_FREEZE;
458: c->tty.flags &= ~TTY_FREEZE;
459:
460: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
461: if (options_get_number(&s->options, "set-titles"))
462: server_client_set_title(c);
1.12 nicm 463:
1.1 nicm 464: if (c->message_string != NULL)
465: redraw = status_message_redraw(c);
466: else if (c->prompt_string != NULL)
467: redraw = status_prompt_redraw(c);
468: else
469: redraw = status_redraw(c);
470: if (!redraw)
471: c->flags &= ~CLIENT_STATUS;
472: }
473:
474: if (c->flags & CLIENT_REDRAW) {
1.27 nicm 475: screen_redraw_screen(c, 0, 0);
476: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 477: } else {
478: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
479: if (wp->flags & PANE_REDRAW)
480: screen_redraw_pane(c, wp);
481: }
482: }
483:
1.27 nicm 484: if (c->flags & CLIENT_BORDERS)
485: screen_redraw_screen(c, 0, 1);
486:
1.1 nicm 487: if (c->flags & CLIENT_STATUS)
1.27 nicm 488: screen_redraw_screen(c, 1, 0);
1.1 nicm 489:
490: c->tty.flags |= flags;
491:
1.27 nicm 492: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 493: }
494:
495: /* Set client title. */
496: void
497: server_client_set_title(struct client *c)
498: {
499: struct session *s = c->session;
500: const char *template;
501: char *title;
502:
503: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 504:
1.23 nicm 505: title = status_replace(c, NULL, template, time(NULL), 1);
1.1 nicm 506: if (c->title == NULL || strcmp(title, c->title) != 0) {
507: if (c->title != NULL)
508: xfree(c->title);
509: c->title = xstrdup(title);
510: tty_set_title(&c->tty, c->title);
511: }
512: xfree(title);
513: }
514:
515: /* Dispatch message from client. */
516: int
517: server_client_msg_dispatch(struct client *c)
518: {
519: struct imsg imsg;
520: struct msg_command_data commanddata;
521: struct msg_identify_data identifydata;
522: struct msg_environ_data environdata;
523: ssize_t n, datalen;
524:
1.8 deraadt 525: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
526: return (-1);
1.1 nicm 527:
528: for (;;) {
529: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
530: return (-1);
531: if (n == 0)
532: return (0);
533: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
534:
535: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
536: server_write_client(c, MSG_VERSION, NULL, 0);
537: c->flags |= CLIENT_BAD;
538: imsg_free(&imsg);
539: continue;
540: }
541:
542: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
543: switch (imsg.hdr.type) {
544: case MSG_COMMAND:
545: if (datalen != sizeof commanddata)
546: fatalx("bad MSG_COMMAND size");
547: memcpy(&commanddata, imsg.data, sizeof commanddata);
548:
549: server_client_msg_command(c, &commanddata);
550: break;
551: case MSG_IDENTIFY:
552: if (datalen != sizeof identifydata)
553: fatalx("bad MSG_IDENTIFY size");
554: if (imsg.fd == -1)
555: fatalx("MSG_IDENTIFY missing fd");
556: memcpy(&identifydata, imsg.data, sizeof identifydata);
557:
558: server_client_msg_identify(c, &identifydata, imsg.fd);
559: break;
560: case MSG_RESIZE:
561: if (datalen != 0)
562: fatalx("bad MSG_RESIZE size");
563:
564: tty_resize(&c->tty);
565: recalculate_sizes();
566: server_redraw_client(c);
567: break;
568: case MSG_EXITING:
569: if (datalen != 0)
570: fatalx("bad MSG_EXITING size");
571:
572: c->session = NULL;
573: tty_close(&c->tty);
574: server_write_client(c, MSG_EXITED, NULL, 0);
575: break;
576: case MSG_WAKEUP:
577: case MSG_UNLOCK:
578: if (datalen != 0)
579: fatalx("bad MSG_WAKEUP size");
580:
581: if (!(c->flags & CLIENT_SUSPENDED))
582: break;
583: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 584:
1.11 nicm 585: if (gettimeofday(&c->activity_time, NULL) != 0)
586: fatal("gettimeofday");
587: if (c->session != NULL) {
588: memcpy(&c->session->activity_time,
589: &c->activity_time,
590: sizeof c->session->activity_time);
591: }
1.10 nicm 592:
1.1 nicm 593: tty_start_tty(&c->tty);
594: server_redraw_client(c);
595: recalculate_sizes();
596: break;
597: case MSG_ENVIRON:
598: if (datalen != sizeof environdata)
599: fatalx("bad MSG_ENVIRON size");
600: memcpy(&environdata, imsg.data, sizeof environdata);
601:
602: environdata.var[(sizeof environdata.var) - 1] = '\0';
603: if (strchr(environdata.var, '=') != NULL)
604: environ_put(&c->environ, environdata.var);
605: break;
606: case MSG_SHELL:
607: if (datalen != 0)
608: fatalx("bad MSG_SHELL size");
609:
610: server_client_msg_shell(c);
611: break;
612: default:
613: fatalx("unexpected message");
614: }
615:
616: imsg_free(&imsg);
617: }
618: }
619:
620: /* Callback to send error message to client. */
621: void printflike2
622: server_client_msg_error(struct cmd_ctx *ctx, const char *fmt, ...)
623: {
624: struct msg_print_data data;
625: va_list ap;
626:
627: va_start(ap, fmt);
628: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
629: va_end(ap);
630:
631: server_write_client(ctx->cmdclient, MSG_ERROR, &data, sizeof data);
632: }
633:
634: /* Callback to send print message to client. */
635: void printflike2
636: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
637: {
638: struct msg_print_data data;
639: va_list ap;
640:
641: va_start(ap, fmt);
642: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
643: va_end(ap);
644:
645: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
646: }
647:
648: /* Callback to send print message to client, if not quiet. */
649: void printflike2
650: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
651: {
652: struct msg_print_data data;
653: va_list ap;
654:
1.26 nicm 655: if (options_get_number(&global_options, "quiet"))
1.1 nicm 656: return;
657:
658: va_start(ap, fmt);
659: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
660: va_end(ap);
661:
662: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
663: }
664:
665: /* Handle command message. */
666: void
667: server_client_msg_command(struct client *c, struct msg_command_data *data)
668: {
669: struct cmd_ctx ctx;
670: struct cmd_list *cmdlist = NULL;
671: int argc;
672: char **argv, *cause;
673:
674: ctx.error = server_client_msg_error;
675: ctx.print = server_client_msg_print;
676: ctx.info = server_client_msg_info;
677:
678: ctx.msgdata = data;
679: ctx.curclient = NULL;
680:
681: ctx.cmdclient = c;
682:
683: argc = data->argc;
684: data->argv[(sizeof data->argv) - 1] = '\0';
685: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
686: server_client_msg_error(&ctx, "command too long");
687: goto error;
688: }
689:
690: if (argc == 0) {
691: argc = 1;
692: argv = xcalloc(1, sizeof *argv);
693: *argv = xstrdup("new-session");
694: }
695:
696: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
697: server_client_msg_error(&ctx, "%s", cause);
698: cmd_free_argv(argc, argv);
699: goto error;
700: }
701: cmd_free_argv(argc, argv);
702:
703: if (cmd_list_exec(cmdlist, &ctx) != 1)
704: server_write_client(c, MSG_EXIT, NULL, 0);
705: cmd_list_free(cmdlist);
706: return;
707:
708: error:
709: if (cmdlist != NULL)
710: cmd_list_free(cmdlist);
711: server_write_client(c, MSG_EXIT, NULL, 0);
712: }
713:
714: /* Handle identify message. */
715: void
716: server_client_msg_identify(
717: struct client *c, struct msg_identify_data *data, int fd)
718: {
719: c->cwd = NULL;
720: data->cwd[(sizeof data->cwd) - 1] = '\0';
721: if (*data->cwd != '\0')
722: c->cwd = xstrdup(data->cwd);
723:
724: data->term[(sizeof data->term) - 1] = '\0';
725: tty_init(&c->tty, fd, data->term);
726: if (data->flags & IDENTIFY_UTF8)
727: c->tty.flags |= TTY_UTF8;
728: if (data->flags & IDENTIFY_256COLOURS)
729: c->tty.term_flags |= TERM_256COLOURS;
730: else if (data->flags & IDENTIFY_88COLOURS)
731: c->tty.term_flags |= TERM_88COLOURS;
1.18 nicm 732: c->tty.key_callback = server_client_handle_key;
733: c->tty.key_data = c;
1.1 nicm 734:
735: tty_resize(&c->tty);
736:
737: c->flags |= CLIENT_TERMINAL;
738: }
739:
740: /* Handle shell message. */
741: void
742: server_client_msg_shell(struct client *c)
743: {
744: struct msg_shell_data data;
745: const char *shell;
1.25 nicm 746:
1.1 nicm 747: shell = options_get_string(&global_s_options, "default-shell");
748:
749: if (*shell == '\0' || areshell(shell))
750: shell = _PATH_BSHELL;
751: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
752: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
1.25 nicm 753:
1.1 nicm 754: server_write_client(c, MSG_SHELL, &data, sizeof data);
755: c->flags |= CLIENT_BAD; /* it will die after exec */
756: }