Annotation of src/usr.bin/tmux/server-client.c, Revision 1.27
1.27 ! nicm 1: /* $OpenBSD: server-client.c,v 1.26 2009/12/10 09:16:52 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);
293: wp = w->active;
294: }
295: window_pane_mouse(wp, c, mouse);
296: return;
297: }
298:
299: /* Is this a prefix key? */
300: keylist = options_get_data(&c->session->options, "prefix");
301: isprefix = 0;
302: for (i = 0; i < ARRAY_LENGTH(keylist); i++) {
303: if (key == ARRAY_ITEM(keylist, i)) {
304: isprefix = 1;
305: break;
306: }
307: }
308:
309: /* No previous prefix key. */
310: if (!(c->flags & CLIENT_PREFIX)) {
311: if (isprefix)
312: c->flags |= CLIENT_PREFIX;
313: else {
314: /* Try as a non-prefix key binding. */
315: if ((bd = key_bindings_lookup(key)) == NULL)
316: window_pane_key(wp, c, key);
317: else
318: key_bindings_dispatch(bd, c);
319: }
320: return;
321: }
322:
323: /* Prefix key already pressed. Reset prefix and lookup key. */
324: c->flags &= ~CLIENT_PREFIX;
325: if ((bd = key_bindings_lookup(key | KEYC_PREFIX)) == NULL) {
326: /* If repeating, treat this as a key, else ignore. */
327: if (c->flags & CLIENT_REPEAT) {
328: c->flags &= ~CLIENT_REPEAT;
329: if (isprefix)
330: c->flags |= CLIENT_PREFIX;
331: else
332: window_pane_key(wp, c, key);
333: }
334: return;
335: }
336:
337: /* If already repeating, but this key can't repeat, skip it. */
338: if (c->flags & CLIENT_REPEAT && !bd->can_repeat) {
339: c->flags &= ~CLIENT_REPEAT;
340: if (isprefix)
341: c->flags |= CLIENT_PREFIX;
342: else
343: window_pane_key(wp, c, key);
344: return;
345: }
346:
347: /* If this key can repeat, reset the repeat flags and timer. */
348: xtimeout = options_get_number(&c->session->options, "repeat-time");
349: if (xtimeout != 0 && bd->can_repeat) {
350: c->flags |= CLIENT_PREFIX|CLIENT_REPEAT;
1.25 nicm 351:
1.18 nicm 352: tv.tv_sec = xtimeout / 1000;
353: tv.tv_usec = (xtimeout % 1000) * 1000L;
354: evtimer_del(&c->repeat_timer);
355: evtimer_add(&c->repeat_timer, &tv);
356: }
357:
358: /* Dispatch the command. */
359: key_bindings_dispatch(bd, c);
360: }
361:
1.2 nicm 362: /* Client functions that need to happen every loop. */
363: void
364: server_client_loop(void)
365: {
366: struct client *c;
367: struct window *w;
368: struct window_pane *wp;
369: u_int i;
370:
371: for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
372: c = ARRAY_ITEM(&clients, i);
373: if (c == NULL || c->session == NULL)
374: continue;
375:
1.18 nicm 376: server_client_check_redraw(c);
377: server_client_reset_state(c);
1.2 nicm 378: }
379:
380: /*
381: * Any windows will have been redrawn as part of clients, so clear
382: * their flags now.
383: */
384: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
385: w = ARRAY_ITEM(&windows, i);
386: if (w == NULL)
387: continue;
388:
389: w->flags &= ~WINDOW_REDRAW;
390: TAILQ_FOREACH(wp, &w->panes, entry)
391: wp->flags &= ~PANE_REDRAW;
392: }
393: }
394:
1.18 nicm 395: /*
396: * Update cursor position and mode settings. The scroll region and attributes
397: * are cleared when idle (waiting for an event) as this is the most likely time
398: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
399: * compromise between excessive resets and likelihood of an interrupt.
400: *
401: * tty_region/tty_reset/tty_update_mode already take care of not resetting
402: * things that are already in their default state.
403: */
1.1 nicm 404: void
1.18 nicm 405: server_client_reset_state(struct client *c)
1.1 nicm 406: {
1.18 nicm 407: struct window *w = c->session->curw->window;
408: struct window_pane *wp = w->active;
409: struct screen *s = wp->screen;
410: struct options *oo = &c->session->options;
411: int status, mode;
1.1 nicm 412:
413: tty_region(&c->tty, 0, c->tty.sy - 1);
414:
415: status = options_get_number(oo, "status");
416: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
417: tty_cursor(&c->tty, 0, 0);
418: else
419: tty_cursor(&c->tty, wp->xoff + s->cx, wp->yoff + s->cy);
420:
421: mode = s->mode;
422: if (TAILQ_NEXT(TAILQ_FIRST(&w->panes), entry) != NULL &&
423: options_get_number(oo, "mouse-select-pane"))
424: mode |= MODE_MOUSE;
425: tty_update_mode(&c->tty, mode);
426: tty_reset(&c->tty);
1.17 nicm 427: }
428:
429: /* Repeat time callback. */
1.24 nicm 430: /* ARGSUSED */
1.17 nicm 431: void
432: server_client_repeat_timer(unused int fd, unused short events, void *data)
433: {
434: struct client *c = data;
435:
436: if (c->flags & CLIENT_REPEAT)
437: c->flags &= ~(CLIENT_PREFIX|CLIENT_REPEAT);
1.1 nicm 438: }
439:
440: /* Check for client redraws. */
441: void
442: server_client_check_redraw(struct client *c)
443: {
444: struct session *s = c->session;
445: struct window_pane *wp;
446: int flags, redraw;
447:
448: flags = c->tty.flags & TTY_FREEZE;
449: c->tty.flags &= ~TTY_FREEZE;
450:
451: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
452: if (options_get_number(&s->options, "set-titles"))
453: server_client_set_title(c);
1.12 nicm 454:
1.1 nicm 455: if (c->message_string != NULL)
456: redraw = status_message_redraw(c);
457: else if (c->prompt_string != NULL)
458: redraw = status_prompt_redraw(c);
459: else
460: redraw = status_redraw(c);
461: if (!redraw)
462: c->flags &= ~CLIENT_STATUS;
463: }
464:
465: if (c->flags & CLIENT_REDRAW) {
1.27 ! nicm 466: screen_redraw_screen(c, 0, 0);
! 467: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 468: } else {
469: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
470: if (wp->flags & PANE_REDRAW)
471: screen_redraw_pane(c, wp);
472: }
473: }
474:
1.27 ! nicm 475: if (c->flags & CLIENT_BORDERS)
! 476: screen_redraw_screen(c, 0, 1);
! 477:
1.1 nicm 478: if (c->flags & CLIENT_STATUS)
1.27 ! nicm 479: screen_redraw_screen(c, 1, 0);
1.1 nicm 480:
481: c->tty.flags |= flags;
482:
1.27 ! nicm 483: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 484: }
485:
486: /* Set client title. */
487: void
488: server_client_set_title(struct client *c)
489: {
490: struct session *s = c->session;
491: const char *template;
492: char *title;
493:
494: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 495:
1.23 nicm 496: title = status_replace(c, NULL, template, time(NULL), 1);
1.1 nicm 497: if (c->title == NULL || strcmp(title, c->title) != 0) {
498: if (c->title != NULL)
499: xfree(c->title);
500: c->title = xstrdup(title);
501: tty_set_title(&c->tty, c->title);
502: }
503: xfree(title);
504: }
505:
506: /* Dispatch message from client. */
507: int
508: server_client_msg_dispatch(struct client *c)
509: {
510: struct imsg imsg;
511: struct msg_command_data commanddata;
512: struct msg_identify_data identifydata;
513: struct msg_environ_data environdata;
514: ssize_t n, datalen;
515:
1.8 deraadt 516: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
517: return (-1);
1.1 nicm 518:
519: for (;;) {
520: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
521: return (-1);
522: if (n == 0)
523: return (0);
524: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
525:
526: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
527: server_write_client(c, MSG_VERSION, NULL, 0);
528: c->flags |= CLIENT_BAD;
529: imsg_free(&imsg);
530: continue;
531: }
532:
533: log_debug("got %d from client %d", imsg.hdr.type, c->ibuf.fd);
534: switch (imsg.hdr.type) {
535: case MSG_COMMAND:
536: if (datalen != sizeof commanddata)
537: fatalx("bad MSG_COMMAND size");
538: memcpy(&commanddata, imsg.data, sizeof commanddata);
539:
540: server_client_msg_command(c, &commanddata);
541: break;
542: case MSG_IDENTIFY:
543: if (datalen != sizeof identifydata)
544: fatalx("bad MSG_IDENTIFY size");
545: if (imsg.fd == -1)
546: fatalx("MSG_IDENTIFY missing fd");
547: memcpy(&identifydata, imsg.data, sizeof identifydata);
548:
549: server_client_msg_identify(c, &identifydata, imsg.fd);
550: break;
551: case MSG_RESIZE:
552: if (datalen != 0)
553: fatalx("bad MSG_RESIZE size");
554:
555: tty_resize(&c->tty);
556: recalculate_sizes();
557: server_redraw_client(c);
558: break;
559: case MSG_EXITING:
560: if (datalen != 0)
561: fatalx("bad MSG_EXITING size");
562:
563: c->session = NULL;
564: tty_close(&c->tty);
565: server_write_client(c, MSG_EXITED, NULL, 0);
566: break;
567: case MSG_WAKEUP:
568: case MSG_UNLOCK:
569: if (datalen != 0)
570: fatalx("bad MSG_WAKEUP size");
571:
572: if (!(c->flags & CLIENT_SUSPENDED))
573: break;
574: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 575:
1.11 nicm 576: if (gettimeofday(&c->activity_time, NULL) != 0)
577: fatal("gettimeofday");
578: if (c->session != NULL) {
579: memcpy(&c->session->activity_time,
580: &c->activity_time,
581: sizeof c->session->activity_time);
582: }
1.10 nicm 583:
1.1 nicm 584: tty_start_tty(&c->tty);
585: server_redraw_client(c);
586: recalculate_sizes();
587: break;
588: case MSG_ENVIRON:
589: if (datalen != sizeof environdata)
590: fatalx("bad MSG_ENVIRON size");
591: memcpy(&environdata, imsg.data, sizeof environdata);
592:
593: environdata.var[(sizeof environdata.var) - 1] = '\0';
594: if (strchr(environdata.var, '=') != NULL)
595: environ_put(&c->environ, environdata.var);
596: break;
597: case MSG_SHELL:
598: if (datalen != 0)
599: fatalx("bad MSG_SHELL size");
600:
601: server_client_msg_shell(c);
602: break;
603: default:
604: fatalx("unexpected message");
605: }
606:
607: imsg_free(&imsg);
608: }
609: }
610:
611: /* Callback to send error message to client. */
612: void printflike2
613: server_client_msg_error(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_ERROR, &data, sizeof data);
623: }
624:
625: /* Callback to send print message to client. */
626: void printflike2
627: server_client_msg_print(struct cmd_ctx *ctx, const char *fmt, ...)
628: {
629: struct msg_print_data data;
630: va_list ap;
631:
632: va_start(ap, fmt);
633: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
634: va_end(ap);
635:
636: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
637: }
638:
639: /* Callback to send print message to client, if not quiet. */
640: void printflike2
641: server_client_msg_info(struct cmd_ctx *ctx, const char *fmt, ...)
642: {
643: struct msg_print_data data;
644: va_list ap;
645:
1.26 nicm 646: if (options_get_number(&global_options, "quiet"))
1.1 nicm 647: return;
648:
649: va_start(ap, fmt);
650: xvsnprintf(data.msg, sizeof data.msg, fmt, ap);
651: va_end(ap);
652:
653: server_write_client(ctx->cmdclient, MSG_PRINT, &data, sizeof data);
654: }
655:
656: /* Handle command message. */
657: void
658: server_client_msg_command(struct client *c, struct msg_command_data *data)
659: {
660: struct cmd_ctx ctx;
661: struct cmd_list *cmdlist = NULL;
662: struct cmd *cmd;
663: int argc;
664: char **argv, *cause;
665:
666: ctx.error = server_client_msg_error;
667: ctx.print = server_client_msg_print;
668: ctx.info = server_client_msg_info;
669:
670: ctx.msgdata = data;
671: ctx.curclient = NULL;
672:
673: ctx.cmdclient = c;
674:
675: argc = data->argc;
676: data->argv[(sizeof data->argv) - 1] = '\0';
677: if (cmd_unpack_argv(data->argv, sizeof data->argv, argc, &argv) != 0) {
678: server_client_msg_error(&ctx, "command too long");
679: goto error;
680: }
681:
682: if (argc == 0) {
683: argc = 1;
684: argv = xcalloc(1, sizeof *argv);
685: *argv = xstrdup("new-session");
686: }
687:
688: if ((cmdlist = cmd_list_parse(argc, argv, &cause)) == NULL) {
689: server_client_msg_error(&ctx, "%s", cause);
690: cmd_free_argv(argc, argv);
691: goto error;
692: }
693: cmd_free_argv(argc, argv);
694:
695: if (data->pid != -1) {
696: TAILQ_FOREACH(cmd, cmdlist, qentry) {
697: if (cmd->entry->flags & CMD_CANTNEST) {
698: server_client_msg_error(&ctx,
699: "sessions should be nested with care. "
700: "unset $TMUX to force");
701: goto error;
702: }
703: }
704: }
705:
706: if (cmd_list_exec(cmdlist, &ctx) != 1)
707: server_write_client(c, MSG_EXIT, NULL, 0);
708: cmd_list_free(cmdlist);
709: return;
710:
711: error:
712: if (cmdlist != NULL)
713: cmd_list_free(cmdlist);
714: server_write_client(c, MSG_EXIT, NULL, 0);
715: }
716:
717: /* Handle identify message. */
718: void
719: server_client_msg_identify(
720: struct client *c, struct msg_identify_data *data, int fd)
721: {
722: c->cwd = NULL;
723: data->cwd[(sizeof data->cwd) - 1] = '\0';
724: if (*data->cwd != '\0')
725: c->cwd = xstrdup(data->cwd);
726:
727: data->term[(sizeof data->term) - 1] = '\0';
728: tty_init(&c->tty, fd, data->term);
729: if (data->flags & IDENTIFY_UTF8)
730: c->tty.flags |= TTY_UTF8;
731: if (data->flags & IDENTIFY_256COLOURS)
732: c->tty.term_flags |= TERM_256COLOURS;
733: else if (data->flags & IDENTIFY_88COLOURS)
734: c->tty.term_flags |= TERM_88COLOURS;
1.18 nicm 735: c->tty.key_callback = server_client_handle_key;
736: c->tty.key_data = c;
1.1 nicm 737:
738: tty_resize(&c->tty);
739:
740: c->flags |= CLIENT_TERMINAL;
741: }
742:
743: /* Handle shell message. */
744: void
745: server_client_msg_shell(struct client *c)
746: {
747: struct msg_shell_data data;
748: const char *shell;
1.25 nicm 749:
1.1 nicm 750: shell = options_get_string(&global_s_options, "default-shell");
751:
752: if (*shell == '\0' || areshell(shell))
753: shell = _PATH_BSHELL;
754: if (strlcpy(data.shell, shell, sizeof data.shell) >= sizeof data.shell)
755: strlcpy(data.shell, _PATH_BSHELL, sizeof data.shell);
1.25 nicm 756:
1.1 nicm 757: server_write_client(c, MSG_SHELL, &data, sizeof data);
758: c->flags |= CLIENT_BAD; /* it will die after exec */
759: }
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