Annotation of src/usr.bin/tmux/server-client.c, Revision 1.137
1.137 ! nicm 1: /* $OpenBSD: server-client.c,v 1.136 2015/04/25 18:33:59 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>
1.92 nicm 20: #include <sys/ioctl.h>
1.1 nicm 21:
1.114 benno 22: #include <errno.h>
1.12 nicm 23: #include <event.h>
1.1 nicm 24: #include <fcntl.h>
1.98 nicm 25: #include <paths.h>
26: #include <stdlib.h>
1.1 nicm 27: #include <string.h>
1.4 nicm 28: #include <time.h>
1.1 nicm 29: #include <unistd.h>
30:
31: #include "tmux.h"
32:
1.132 nicm 33: void server_client_key_table(struct client *, const char *);
1.91 nicm 34: void server_client_check_focus(struct window_pane *);
1.92 nicm 35: void server_client_check_resize(struct window_pane *);
1.131 nicm 36: int server_client_check_mouse(struct client *);
1.17 nicm 37: void server_client_repeat_timer(int, short, void *);
1.36 nicm 38: void server_client_check_exit(struct client *);
1.1 nicm 39: void server_client_check_redraw(struct client *);
40: void server_client_set_title(struct client *);
1.18 nicm 41: void server_client_reset_state(struct client *);
1.82 nicm 42: int server_client_assume_paste(struct session *);
1.1 nicm 43:
44: int server_client_msg_dispatch(struct client *);
1.108 nicm 45: void server_client_msg_command(struct client *, struct imsg *);
1.109 nicm 46: void server_client_msg_identify(struct client *, struct imsg *);
1.1 nicm 47: void server_client_msg_shell(struct client *);
48:
1.132 nicm 49: /* Set client key table. */
50: void
51: server_client_key_table(struct client *c, const char *name)
52: {
53: key_bindings_unref_table(c->keytable);
54: c->keytable = key_bindings_get_table(name, 1);
55: c->keytable->references++;
56: }
57:
1.1 nicm 58: /* Create a new client. */
59: void
60: server_client_create(int fd)
61: {
62: struct client *c;
63:
1.49 nicm 64: setblocking(fd, 0);
1.1 nicm 65:
66: c = xcalloc(1, sizeof *c);
67: c->references = 0;
68: imsg_init(&c->ibuf, fd);
1.14 nicm 69: server_update_event(c);
1.25 nicm 70:
1.10 nicm 71: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 72: fatal("gettimeofday failed");
1.11 nicm 73: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.111 nicm 74:
75: environ_init(&c->environ);
1.1 nicm 76:
1.94 nicm 77: c->cmdq = cmdq_new(c);
78: c->cmdq->client_exit = 1;
79:
1.116 nicm 80: c->stdin_data = evbuffer_new();
81: c->stdout_data = evbuffer_new();
82: c->stderr_data = evbuffer_new();
1.33 nicm 83:
1.1 nicm 84: c->tty.fd = -1;
85: c->title = NULL;
86:
87: c->session = NULL;
1.45 nicm 88: c->last_session = NULL;
1.1 nicm 89: c->tty.sx = 80;
90: c->tty.sy = 24;
91:
92: screen_init(&c->status, c->tty.sx, 1, 0);
1.51 nicm 93: RB_INIT(&c->status_new);
94: RB_INIT(&c->status_old);
1.1 nicm 95:
96: c->message_string = NULL;
1.136 nicm 97: TAILQ_INIT(&c->message_log);
1.1 nicm 98:
99: c->prompt_string = NULL;
100: c->prompt_buffer = NULL;
101: c->prompt_index = 0;
102:
1.93 nicm 103: c->flags |= CLIENT_FOCUSED;
104:
1.132 nicm 105: c->keytable = key_bindings_get_table("root", 1);
106: c->keytable->references++;
107:
1.17 nicm 108: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
109:
1.135 nicm 110: TAILQ_INSERT_TAIL(&clients, c, entry);
1.1 nicm 111: log_debug("new client %d", fd);
1.72 nicm 112: }
113:
114: /* Open client terminal if needed. */
115: int
1.119 nicm 116: server_client_open(struct client *c, char **cause)
1.72 nicm 117: {
1.75 nicm 118: if (c->flags & CLIENT_CONTROL)
119: return (0);
1.120 nicm 120:
121: if (strcmp(c->ttyname, "/dev/tty") == 0) {
122: *cause = xstrdup("can't use /dev/tty");
123: return (-1);
124: }
1.75 nicm 125:
1.72 nicm 126: if (!(c->flags & CLIENT_TERMINAL)) {
1.116 nicm 127: *cause = xstrdup("not a terminal");
1.72 nicm 128: return (-1);
129: }
130:
1.119 nicm 131: if (tty_open(&c->tty, cause) != 0)
1.72 nicm 132: return (-1);
133:
134: return (0);
1.1 nicm 135: }
136:
137: /* Lost a client. */
138: void
139: server_client_lost(struct client *c)
140: {
1.136 nicm 141: struct message_entry *msg, *msg1;
1.1 nicm 142:
1.135 nicm 143: TAILQ_REMOVE(&clients, c, entry);
1.1 nicm 144: log_debug("lost client %d", c->ibuf.fd);
145:
146: /*
147: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
148: * and tty_free might close an unrelated fd.
149: */
150: if (c->flags & CLIENT_TERMINAL)
151: tty_free(&c->tty);
1.109 nicm 152: free(c->ttyname);
153: free(c->term);
1.1 nicm 154:
1.113 nicm 155: evbuffer_free(c->stdin_data);
156: evbuffer_free(c->stdout_data);
1.97 nicm 157: if (c->stderr_data != c->stdout_data)
1.126 nicm 158: evbuffer_free(c->stderr_data);
1.33 nicm 159:
1.51 nicm 160: status_free_jobs(&c->status_new);
161: status_free_jobs(&c->status_old);
1.1 nicm 162: screen_free(&c->status);
163:
1.77 nicm 164: free(c->title);
1.109 nicm 165: close(c->cwd);
1.1 nicm 166:
1.17 nicm 167: evtimer_del(&c->repeat_timer);
168:
1.132 nicm 169: key_bindings_unref_table(c->keytable);
170:
1.69 nicm 171: if (event_initialized(&c->identify_timer))
172: evtimer_del(&c->identify_timer);
1.15 nicm 173:
1.77 nicm 174: free(c->message_string);
1.116 nicm 175: if (event_initialized(&c->message_timer))
1.69 nicm 176: evtimer_del(&c->message_timer);
1.136 nicm 177: TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
1.77 nicm 178: free(msg->msg);
1.136 nicm 179: TAILQ_REMOVE(&c->message_log, msg, entry);
180: free(msg);
1.21 nicm 181: }
1.1 nicm 182:
1.77 nicm 183: free(c->prompt_string);
184: free(c->prompt_buffer);
1.61 nicm 185:
1.94 nicm 186: c->cmdq->dead = 1;
187: cmdq_free(c->cmdq);
188: c->cmdq = NULL;
189:
1.61 nicm 190: environ_free(&c->environ);
1.1 nicm 191:
192: close(c->ibuf.fd);
193: imsg_clear(&c->ibuf);
1.69 nicm 194: if (event_initialized(&c->event))
195: event_del(&c->event);
1.13 nicm 196:
1.135 nicm 197: TAILQ_INSERT_TAIL(&dead_clients, c, entry);
1.1 nicm 198: c->flags |= CLIENT_DEAD;
1.71 nicm 199:
200: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 201:
202: recalculate_sizes();
1.41 nicm 203: server_check_unattached();
1.19 nicm 204: server_update_socket();
1.9 nicm 205: }
206:
1.1 nicm 207: /* Process a single client event. */
208: void
1.12 nicm 209: server_client_callback(int fd, short events, void *data)
1.1 nicm 210: {
211: struct client *c = data;
1.7 nicm 212:
213: if (c->flags & CLIENT_DEAD)
214: return;
1.1 nicm 215:
216: if (fd == c->ibuf.fd) {
1.122 krw 217: if (events & EV_WRITE && msgbuf_write(&c->ibuf.w) <= 0 &&
1.114 benno 218: errno != EAGAIN)
1.1 nicm 219: goto client_lost;
220:
221: if (c->flags & CLIENT_BAD) {
222: if (c->ibuf.w.queued == 0)
223: goto client_lost;
224: return;
225: }
226:
1.12 nicm 227: if (events & EV_READ && server_client_msg_dispatch(c) != 0)
1.1 nicm 228: goto client_lost;
229: }
1.14 nicm 230:
1.73 nicm 231: server_push_stdout(c);
232: server_push_stderr(c);
233:
1.25 nicm 234: server_update_event(c);
1.1 nicm 235: return;
236:
237: client_lost:
238: server_client_lost(c);
239: }
240:
1.16 nicm 241: /* Handle client status timer. */
242: void
243: server_client_status_timer(void)
244: {
245: struct client *c;
246: struct session *s;
247: struct timeval tv;
1.20 nicm 248: int interval;
249: time_t difference;
1.16 nicm 250:
251: if (gettimeofday(&tv, NULL) != 0)
252: fatal("gettimeofday failed");
253:
1.135 nicm 254: TAILQ_FOREACH(c, &clients, entry) {
255: if (c->session == NULL)
1.16 nicm 256: continue;
257: if (c->message_string != NULL || c->prompt_string != NULL) {
258: /*
259: * Don't need timed redraw for messages/prompts so bail
260: * now. The status timer isn't reset when they are
261: * redrawn anyway.
262: */
263: continue;
264: }
265: s = c->session;
266:
267: if (!options_get_number(&s->options, "status"))
268: continue;
269: interval = options_get_number(&s->options, "status-interval");
270:
1.20 nicm 271: difference = tv.tv_sec - c->status_timer.tv_sec;
1.117 nicm 272: if (interval != 0 && difference >= interval) {
1.51 nicm 273: status_update_jobs(c);
1.16 nicm 274: c->flags |= CLIENT_STATUS;
275: }
276: }
277: }
278:
1.66 nicm 279: /* Check for mouse keys. */
1.131 nicm 280: int
281: server_client_check_mouse(struct client *c)
1.66 nicm 282: {
1.131 nicm 283: struct session *s = c->session;
284: struct mouse_event *m = &c->tty.mouse;
285: struct window *w;
286: struct window_pane *wp;
287: enum { NOTYPE, DOWN, UP, DRAG, WHEEL } type = NOTYPE;
288: enum { NOWHERE, PANE, STATUS, BORDER } where = NOWHERE;
289: u_int x, y, b;
290: int key;
291:
292: log_debug("mouse %02x at %u,%u (last %u,%u) (%d)", m->b, m->x, m->y,
293: m->lx, m->ly, c->tty.mouse_drag_flag);
294:
295: /* What type of event is this? */
296: if (MOUSE_DRAG(m->b)) {
297: type = DRAG;
298: if (c->tty.mouse_drag_flag) {
299: x = m->x, y = m->y, b = m->b;
300: log_debug("drag update at %u,%u", x, y);
301: } else {
302: x = m->lx, y = m->ly, b = m->lb;
303: log_debug("drag start at %u,%u", x, y);
304: }
305: } else if (MOUSE_WHEEL(m->b)) {
306: type = WHEEL;
307: x = m->x, y = m->y, b = m->b;
308: log_debug("wheel at %u,%u", x, y);
309: } else if (MOUSE_BUTTONS(m->b) == 3) {
310: type = UP;
311: x = m->x, y = m->y, b = m->lb;
312: log_debug("up at %u,%u", x, y);
313: } else {
314: type = DOWN;
315: x = m->x, y = m->y, b = m->b;
316: log_debug("down at %u,%u", x, y);
317: }
318: if (type == NOTYPE)
319: return (KEYC_NONE);
320:
321: /* Always save the session. */
322: m->s = s->id;
323:
324: /* Is this on the status line? */
325: m->statusat = status_at_line(c);
326: if (m->statusat != -1 && y == (u_int)m->statusat) {
327: w = status_get_window_at(c, x);
328: if (w == NULL)
329: return (KEYC_NONE);
330: m->w = w->id;
331: where = STATUS;
332: } else
333: m->w = -1;
334:
335: /* Not on status line. Adjust position and check for border or pane. */
336: if (where == NOWHERE) {
337: if (m->statusat == 0 && y > 0)
338: y--;
339: else if (m->statusat > 0 && y >= (u_int)m->statusat)
340: y = m->statusat - 1;
341:
342: TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
343: if ((wp->xoff + wp->sx == x &&
344: wp->yoff <= 1 + y &&
345: wp->yoff + wp->sy >= y) ||
346: (wp->yoff + wp->sy == y &&
347: wp->xoff <= 1 + x &&
348: wp->xoff + wp->sx >= x))
349: break;
350: }
351: if (wp != NULL)
352: where = BORDER;
353: else {
354: wp = window_get_active_at(s->curw->window, x, y);
355: if (wp != NULL)
356: where = PANE;
357: }
358: if (where == NOWHERE)
359: return (KEYC_NONE);
360: m->wp = wp->id;
361: m->w = wp->window->id;
362: } else
363: m->wp = -1;
364:
365: /* Stop dragging if needed. */
366: if (type != DRAG && c->tty.mouse_drag_flag) {
367: if (c->tty.mouse_drag_release != NULL)
368: c->tty.mouse_drag_release(c, m);
369:
370: c->tty.mouse_drag_update = NULL;
371: c->tty.mouse_drag_release = NULL;
372:
373: c->tty.mouse_drag_flag = 0;
1.133 nicm 374: return (KEYC_MOUSE); /* not a key, but still may want to pass */
1.131 nicm 375: }
376:
377: /* Convert to a key binding. */
378: key = KEYC_NONE;
379: switch (type) {
380: case NOTYPE:
381: break;
382: case DRAG:
383: if (c->tty.mouse_drag_update != NULL)
384: c->tty.mouse_drag_update(c, m);
385: else {
386: switch (MOUSE_BUTTONS(b)) {
387: case 0:
388: if (where == PANE)
389: key = KEYC_MOUSEDRAG1_PANE;
390: if (where == STATUS)
391: key = KEYC_MOUSEDRAG1_STATUS;
392: if (where == BORDER)
393: key = KEYC_MOUSEDRAG1_BORDER;
394: break;
395: case 1:
396: if (where == PANE)
397: key = KEYC_MOUSEDRAG2_PANE;
398: if (where == STATUS)
399: key = KEYC_MOUSEDRAG2_STATUS;
400: if (where == BORDER)
401: key = KEYC_MOUSEDRAG2_BORDER;
402: break;
403: case 2:
404: if (where == PANE)
405: key = KEYC_MOUSEDRAG3_PANE;
406: if (where == STATUS)
407: key = KEYC_MOUSEDRAG3_STATUS;
408: if (where == BORDER)
409: key = KEYC_MOUSEDRAG3_BORDER;
410: break;
411: }
412: }
1.66 nicm 413:
1.131 nicm 414: c->tty.mouse_drag_flag = 1;
415: break;
416: case WHEEL:
417: if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) {
418: if (where == PANE)
419: key = KEYC_WHEELUP_PANE;
420: if (where == STATUS)
421: key = KEYC_WHEELUP_STATUS;
422: if (where == BORDER)
423: key = KEYC_WHEELUP_BORDER;
424: } else {
425: if (where == PANE)
426: key = KEYC_WHEELDOWN_PANE;
427: if (where == STATUS)
428: key = KEYC_WHEELDOWN_STATUS;
429: if (where == BORDER)
430: key = KEYC_WHEELDOWN_BORDER;
431: }
432: break;
433: case UP:
434: switch (MOUSE_BUTTONS(b)) {
435: case 0:
436: if (where == PANE)
437: key = KEYC_MOUSEUP1_PANE;
438: if (where == STATUS)
439: key = KEYC_MOUSEUP1_STATUS;
440: if (where == BORDER)
441: key = KEYC_MOUSEUP1_BORDER;
442: break;
443: case 1:
444: if (where == PANE)
445: key = KEYC_MOUSEUP2_PANE;
446: if (where == STATUS)
447: key = KEYC_MOUSEUP2_STATUS;
448: if (where == BORDER)
449: key = KEYC_MOUSEUP2_BORDER;
450: break;
451: case 2:
452: if (where == PANE)
453: key = KEYC_MOUSEUP3_PANE;
454: if (where == STATUS)
455: key = KEYC_MOUSEUP3_STATUS;
456: if (where == BORDER)
457: key = KEYC_MOUSEUP3_BORDER;
458: break;
459: }
460: break;
461: case DOWN:
462: switch (MOUSE_BUTTONS(b)) {
463: case 0:
464: if (where == PANE)
465: key = KEYC_MOUSEDOWN1_PANE;
466: if (where == STATUS)
467: key = KEYC_MOUSEDOWN1_STATUS;
468: if (where == BORDER)
469: key = KEYC_MOUSEDOWN1_BORDER;
470: break;
471: case 1:
472: if (where == PANE)
473: key = KEYC_MOUSEDOWN2_PANE;
474: if (where == STATUS)
475: key = KEYC_MOUSEDOWN2_STATUS;
476: if (where == BORDER)
477: key = KEYC_MOUSEDOWN2_BORDER;
478: break;
479: case 2:
480: if (where == PANE)
481: key = KEYC_MOUSEDOWN3_PANE;
482: if (where == STATUS)
483: key = KEYC_MOUSEDOWN3_STATUS;
484: if (where == BORDER)
485: key = KEYC_MOUSEDOWN3_BORDER;
486: break;
1.66 nicm 487: }
1.131 nicm 488: break;
1.66 nicm 489: }
1.131 nicm 490: if (key == KEYC_NONE)
491: return (KEYC_NONE);
1.66 nicm 492:
1.131 nicm 493: /* Apply modifiers if any. */
494: if (b & MOUSE_MASK_META)
495: key |= KEYC_ESCAPE;
496: if (b & MOUSE_MASK_CTRL)
497: key |= KEYC_CTRL;
498: if (b & MOUSE_MASK_SHIFT)
499: key |= KEYC_SHIFT;
1.66 nicm 500:
1.131 nicm 501: return (key);
1.66 nicm 502: }
503:
1.82 nicm 504: /* Is this fast enough to probably be a paste? */
505: int
506: server_client_assume_paste(struct session *s)
507: {
508: struct timeval tv;
1.84 nicm 509: int t;
1.82 nicm 510:
511: if ((t = options_get_number(&s->options, "assume-paste-time")) == 0)
1.83 nicm 512: return (0);
1.82 nicm 513:
514: timersub(&s->activity_time, &s->last_activity_time, &tv);
515: if (tv.tv_sec == 0 && tv.tv_usec < t * 1000)
1.83 nicm 516: return (1);
517: return (0);
1.82 nicm 518: }
519:
1.18 nicm 520: /* Handle data key input from client. */
521: void
1.74 nicm 522: server_client_handle_key(struct client *c, int key)
1.18 nicm 523: {
1.131 nicm 524: struct mouse_event *m = &c->tty.mouse;
1.132 nicm 525: struct session *s = c->session;
1.18 nicm 526: struct window *w;
527: struct window_pane *wp;
528: struct timeval tv;
1.132 nicm 529: struct key_table *table = c->keytable;
530: struct key_binding bd_find, *bd;
531: int xtimeout;
1.18 nicm 532:
533: /* Check the client is good to accept input. */
1.132 nicm 534: if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
1.18 nicm 535: return;
1.132 nicm 536: w = s->curw->window;
537: wp = w->active;
1.86 nicm 538:
1.131 nicm 539: /* No session, do nothing. */
1.18 nicm 540: if (c->session == NULL)
541: return;
542: s = c->session;
1.131 nicm 543: w = c->session->curw->window;
544: wp = w->active;
1.18 nicm 545:
546: /* Update the activity timer. */
547: if (gettimeofday(&c->activity_time, NULL) != 0)
548: fatal("gettimeofday failed");
1.82 nicm 549: memcpy(&s->last_activity_time, &s->activity_time,
550: sizeof s->last_activity_time);
1.18 nicm 551: memcpy(&s->activity_time, &c->activity_time, sizeof s->activity_time);
552:
1.132 nicm 553: /* Number keys jump to pane in identify mode. */
1.25 nicm 554: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 555: if (c->flags & CLIENT_READONLY)
556: return;
1.95 nicm 557: window_unzoom(w);
1.18 nicm 558: wp = window_pane_at_index(w, key - '0');
559: if (wp != NULL && window_pane_visible(wp))
560: window_set_active_pane(w, wp);
561: server_clear_identify(c);
562: return;
563: }
564:
565: /* Handle status line. */
1.30 nicm 566: if (!(c->flags & CLIENT_READONLY)) {
567: status_message_clear(c);
568: server_clear_identify(c);
569: }
1.18 nicm 570: if (c->prompt_string != NULL) {
1.30 nicm 571: if (!(c->flags & CLIENT_READONLY))
572: status_prompt_key(c, key);
1.18 nicm 573: return;
574: }
575:
576: /* Check for mouse keys. */
577: if (key == KEYC_MOUSE) {
1.30 nicm 578: if (c->flags & CLIENT_READONLY)
579: return;
1.131 nicm 580: key = server_client_check_mouse(c);
581: if (key == KEYC_NONE)
582: return;
583:
584: m->valid = 1;
585: m->key = key;
586:
587: if (!options_get_number(&s->options, "mouse")) {
588: window_pane_key(wp, c, s, key, m);
589: return;
590: }
591: } else
592: m->valid = 0;
1.18 nicm 593:
1.132 nicm 594: /* Treat everything as a regular key when pasting is detected. */
595: if (server_client_assume_paste(s)) {
596: if (!(c->flags & CLIENT_READONLY))
597: window_pane_key(wp, c, s, key, m);
598: return;
599: }
1.18 nicm 600:
1.132 nicm 601: retry:
602: /* Try to see if there is a key binding in the current table. */
603: bd_find.key = key;
604: bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
605: if (bd != NULL) {
606: /*
607: * Key was matched in this table. If currently repeating but a
608: * non-repeating binding was found, stop repeating and try
609: * again in the root table.
610: */
611: if ((c->flags & CLIENT_REPEAT) && !bd->can_repeat) {
612: server_client_key_table(c, "root");
613: c->flags &= ~CLIENT_REPEAT;
1.85 nicm 614: server_status_client(c);
1.132 nicm 615: goto retry;
1.18 nicm 616: }
1.82 nicm 617:
1.132 nicm 618: /*
619: * Take a reference to this table to make sure the key binding
620: * doesn't disappear.
621: */
622: table->references++;
623:
624: /*
625: * If this is a repeating key, start the timer. Otherwise reset
626: * the client back to the root table.
627: */
628: xtimeout = options_get_number(&s->options, "repeat-time");
629: if (xtimeout != 0 && bd->can_repeat) {
630: c->flags |= CLIENT_REPEAT;
631:
632: tv.tv_sec = xtimeout / 1000;
633: tv.tv_usec = (xtimeout % 1000) * 1000L;
634: evtimer_del(&c->repeat_timer);
635: evtimer_add(&c->repeat_timer, &tv);
636: } else {
1.18 nicm 637: c->flags &= ~CLIENT_REPEAT;
1.132 nicm 638: server_client_key_table(c, "root");
1.18 nicm 639: }
1.132 nicm 640: server_status_client(c);
641:
642: /* Dispatch the key binding. */
643: key_bindings_dispatch(bd, c, m);
644: key_bindings_unref_table(table);
1.18 nicm 645: return;
646: }
647:
1.132 nicm 648: /*
649: * No match in this table. If repeating, switch the client back to the
650: * root table and try again.
651: */
652: if (c->flags & CLIENT_REPEAT) {
653: server_client_key_table(c, "root");
1.18 nicm 654: c->flags &= ~CLIENT_REPEAT;
1.132 nicm 655: server_status_client(c);
656: goto retry;
1.18 nicm 657: }
658:
1.132 nicm 659: /* If no match and we're not in the root table, that's it. */
660: if (strcmp(c->keytable->name, "root") != 0) {
661: server_client_key_table(c, "root");
662: server_status_client(c);
663: return;
1.18 nicm 664: }
665:
1.132 nicm 666: /*
667: * No match, but in the root table. Prefix switches to the prefix table
668: * and everything else is passed through.
669: */
670: if (key == options_get_number(&s->options, "prefix") ||
671: key == options_get_number(&s->options, "prefix2")) {
672: server_client_key_table(c, "prefix");
673: server_status_client(c);
674: } else if (!(c->flags & CLIENT_READONLY))
675: window_pane_key(wp, c, s, key, m);
1.18 nicm 676: }
677:
1.2 nicm 678: /* Client functions that need to happen every loop. */
679: void
680: server_client_loop(void)
681: {
682: struct client *c;
683: struct window *w;
684: struct window_pane *wp;
685:
1.135 nicm 686: TAILQ_FOREACH(c, &clients, entry) {
1.36 nicm 687: server_client_check_exit(c);
688: if (c->session != NULL) {
689: server_client_check_redraw(c);
690: server_client_reset_state(c);
691: }
1.2 nicm 692: }
693:
694: /*
695: * Any windows will have been redrawn as part of clients, so clear
1.92 nicm 696: * their flags now. Also check pane focus and resize.
1.2 nicm 697: */
1.134 nicm 698: RB_FOREACH(w, windows, &windows) {
1.2 nicm 699: w->flags &= ~WINDOW_REDRAW;
1.91 nicm 700: TAILQ_FOREACH(wp, &w->panes, entry) {
1.101 nicm 701: if (wp->fd != -1) {
702: server_client_check_focus(wp);
703: server_client_check_resize(wp);
704: }
1.2 nicm 705: wp->flags &= ~PANE_REDRAW;
1.91 nicm 706: }
1.2 nicm 707: }
1.92 nicm 708: }
709:
710: /* Check if pane should be resized. */
711: void
712: server_client_check_resize(struct window_pane *wp)
713: {
714: struct winsize ws;
715:
1.101 nicm 716: if (!(wp->flags & PANE_RESIZE))
1.92 nicm 717: return;
718:
719: memset(&ws, 0, sizeof ws);
720: ws.ws_col = wp->sx;
721: ws.ws_row = wp->sy;
722:
1.100 nicm 723: if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
1.92 nicm 724: fatal("ioctl failed");
725:
726: wp->flags &= ~PANE_RESIZE;
1.91 nicm 727: }
728:
729: /* Check whether pane should be focused. */
730: void
731: server_client_check_focus(struct window_pane *wp)
732: {
1.93 nicm 733: struct client *c;
1.102 nicm 734: int push;
1.103 nicm 735:
736: /* Are focus events off? */
737: if (!options_get_number(&global_options, "focus-events"))
738: return;
1.102 nicm 739:
740: /* Do we need to push the focus state? */
741: push = wp->flags & PANE_FOCUSPUSH;
742: wp->flags &= ~PANE_FOCUSPUSH;
1.91 nicm 743:
744: /* If we don't care about focus, forget it. */
745: if (!(wp->base.mode & MODE_FOCUSON))
746: return;
747:
748: /* If we're not the active pane in our window, we're not focused. */
749: if (wp->window->active != wp)
750: goto not_focused;
751:
752: /* If we're in a mode, we're not focused. */
753: if (wp->screen != &wp->base)
754: goto not_focused;
755:
756: /*
1.93 nicm 757: * If our window is the current window in any focused clients with an
758: * attached session, we're focused.
1.91 nicm 759: */
1.135 nicm 760: TAILQ_FOREACH(c, &clients, entry) {
761: if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
1.91 nicm 762: continue;
1.93 nicm 763: if (c->session->flags & SESSION_UNATTACHED)
764: continue;
765:
766: if (c->session->curw->window == wp->window)
1.91 nicm 767: goto focused;
768: }
769:
770: not_focused:
1.102 nicm 771: if (push || (wp->flags & PANE_FOCUSED))
1.91 nicm 772: bufferevent_write(wp->event, "\033[O", 3);
773: wp->flags &= ~PANE_FOCUSED;
774: return;
775:
776: focused:
1.102 nicm 777: if (push || !(wp->flags & PANE_FOCUSED))
1.91 nicm 778: bufferevent_write(wp->event, "\033[I", 3);
779: wp->flags |= PANE_FOCUSED;
1.2 nicm 780: }
781:
1.18 nicm 782: /*
783: * Update cursor position and mode settings. The scroll region and attributes
784: * are cleared when idle (waiting for an event) as this is the most likely time
785: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
786: * compromise between excessive resets and likelihood of an interrupt.
787: *
788: * tty_region/tty_reset/tty_update_mode already take care of not resetting
789: * things that are already in their default state.
790: */
1.1 nicm 791: void
1.18 nicm 792: server_client_reset_state(struct client *c)
1.1 nicm 793: {
1.18 nicm 794: struct window *w = c->session->curw->window;
795: struct window_pane *wp = w->active;
796: struct screen *s = wp->screen;
797: struct options *oo = &c->session->options;
1.66 nicm 798: int status, mode, o;
1.60 nicm 799:
800: if (c->flags & CLIENT_SUSPENDED)
801: return;
1.1 nicm 802:
1.86 nicm 803: if (c->flags & CLIENT_CONTROL)
804: return;
805:
1.1 nicm 806: tty_region(&c->tty, 0, c->tty.sy - 1);
807:
808: status = options_get_number(oo, "status");
809: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
810: tty_cursor(&c->tty, 0, 0);
1.66 nicm 811: else {
1.126 nicm 812: o = status && options_get_number(oo, "status-position") == 0;
1.66 nicm 813: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
814: }
1.1 nicm 815:
1.50 nicm 816: /*
1.131 nicm 817: * Set mouse mode if requested. To support dragging, always use button
818: * mode.
1.57 nicm 819: */
820: mode = s->mode;
1.131 nicm 821: if (options_get_number(oo, "mouse"))
822: mode = (mode & ~ALL_MOUSE_MODES) | MODE_MOUSE_BUTTON;
1.48 nicm 823:
824: /*
825: * Set UTF-8 mouse input if required. If the terminal is UTF-8, the
826: * user has set mouse-utf8 and any mouse mode is in effect, turn on
827: * UTF-8 mouse input. If the receiving terminal hasn't requested it
828: * (that is, it isn't in s->mode), then it'll be converted in
829: * input_mouse.
830: */
831: if ((c->tty.flags & TTY_UTF8) &&
832: (mode & ALL_MOUSE_MODES) && options_get_number(oo, "mouse-utf8"))
833: mode |= MODE_MOUSE_UTF8;
834: else
835: mode &= ~MODE_MOUSE_UTF8;
836:
837: /* Set the terminal mode and reset attributes. */
1.59 nicm 838: tty_update_mode(&c->tty, mode, s);
1.1 nicm 839: tty_reset(&c->tty);
1.17 nicm 840: }
841:
842: /* Repeat time callback. */
843: void
844: server_client_repeat_timer(unused int fd, unused short events, void *data)
845: {
846: struct client *c = data;
847:
1.85 nicm 848: if (c->flags & CLIENT_REPEAT) {
1.132 nicm 849: server_client_key_table(c, "root");
850: c->flags &= ~CLIENT_REPEAT;
851: server_status_client(c);
1.85 nicm 852: }
1.1 nicm 853: }
854:
1.36 nicm 855: /* Check if client should be exited. */
856: void
857: server_client_check_exit(struct client *c)
858: {
859: if (!(c->flags & CLIENT_EXIT))
860: return;
861:
1.73 nicm 862: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
863: return;
864: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 865: return;
1.73 nicm 866: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 867: return;
868:
1.107 nicm 869: server_write_client(c, MSG_EXIT, &c->retval, sizeof c->retval);
1.36 nicm 870: c->flags &= ~CLIENT_EXIT;
1.38 nicm 871: }
872:
1.1 nicm 873: /* Check for client redraws. */
874: void
875: server_client_check_redraw(struct client *c)
876: {
877: struct session *s = c->session;
1.137 ! nicm 878: struct tty *tty = &c->tty;
1.1 nicm 879: struct window_pane *wp;
880: int flags, redraw;
881:
1.86 nicm 882: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79 nicm 883: return;
884:
1.1 nicm 885: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
886: if (options_get_number(&s->options, "set-titles"))
887: server_client_set_title(c);
1.12 nicm 888:
1.1 nicm 889: if (c->message_string != NULL)
890: redraw = status_message_redraw(c);
891: else if (c->prompt_string != NULL)
892: redraw = status_prompt_redraw(c);
893: else
894: redraw = status_redraw(c);
895: if (!redraw)
896: c->flags &= ~CLIENT_STATUS;
897: }
898:
1.137 ! nicm 899: flags = tty->flags & (TTY_FREEZE|TTY_NOCURSOR);
! 900: tty->flags = (tty->flags & ~TTY_FREEZE) | TTY_NOCURSOR;
! 901:
1.1 nicm 902: if (c->flags & CLIENT_REDRAW) {
1.137 ! nicm 903: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 904: screen_redraw_screen(c, 1, 1, 1);
1.27 nicm 905: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.38 nicm 906: } else if (c->flags & CLIENT_REDRAWWINDOW) {
1.137 ! nicm 907: tty_update_mode(tty, tty->mode, NULL);
1.38 nicm 908: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
909: screen_redraw_pane(c, wp);
910: c->flags &= ~CLIENT_REDRAWWINDOW;
1.1 nicm 911: } else {
912: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
1.137 ! nicm 913: if (wp->flags & PANE_REDRAW) {
! 914: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 915: screen_redraw_pane(c, wp);
1.137 ! nicm 916: }
1.1 nicm 917: }
918: }
919:
1.137 ! nicm 920: if (c->flags & CLIENT_BORDERS) {
! 921: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 922: screen_redraw_screen(c, 0, 0, 1);
1.137 ! nicm 923: }
1.27 nicm 924:
1.137 ! nicm 925: if (c->flags & CLIENT_STATUS) {
! 926: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 927: screen_redraw_screen(c, 0, 1, 0);
1.137 ! nicm 928: }
1.1 nicm 929:
1.137 ! nicm 930: tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags;
! 931: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 932:
1.27 nicm 933: c->flags &= ~(CLIENT_REDRAW|CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 934: }
935:
936: /* Set client title. */
937: void
938: server_client_set_title(struct client *c)
939: {
1.128 nicm 940: struct session *s = c->session;
941: const char *template;
942: char *title;
943: struct format_tree *ft;
1.1 nicm 944:
945: template = options_get_string(&s->options, "set-titles-string");
1.25 nicm 946:
1.128 nicm 947: ft = format_create();
948: format_defaults(ft, c, NULL, NULL, NULL);
949:
950: title = format_expand_time(ft, template, time(NULL));
1.1 nicm 951: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 nicm 952: free(c->title);
1.1 nicm 953: c->title = xstrdup(title);
954: tty_set_title(&c->tty, c->title);
955: }
1.77 nicm 956: free(title);
1.128 nicm 957:
958: format_free(ft);
1.1 nicm 959: }
960:
961: /* Dispatch message from client. */
962: int
963: server_client_msg_dispatch(struct client *c)
964: {
965: struct imsg imsg;
1.73 nicm 966: struct msg_stdin_data stdindata;
1.108 nicm 967: const char *data;
1.1 nicm 968: ssize_t n, datalen;
969:
1.8 deraadt 970: if ((n = imsg_read(&c->ibuf)) == -1 || n == 0)
971: return (-1);
1.1 nicm 972:
973: for (;;) {
974: if ((n = imsg_get(&c->ibuf, &imsg)) == -1)
975: return (-1);
976: if (n == 0)
977: return (0);
1.108 nicm 978:
979: data = imsg.data;
1.1 nicm 980: datalen = imsg.hdr.len - IMSG_HEADER_SIZE;
981:
982: if (imsg.hdr.peerid != PROTOCOL_VERSION) {
983: server_write_client(c, MSG_VERSION, NULL, 0);
984: c->flags |= CLIENT_BAD;
1.112 nicm 985: if (imsg.fd != -1)
986: close(imsg.fd);
1.1 nicm 987: imsg_free(&imsg);
988: continue;
989: }
990:
1.129 nicm 991: log_debug("got %u from client %d", imsg.hdr.type, c->ibuf.fd);
1.1 nicm 992: switch (imsg.hdr.type) {
1.109 nicm 993: case MSG_IDENTIFY_FLAGS:
994: case MSG_IDENTIFY_TERM:
995: case MSG_IDENTIFY_TTYNAME:
996: case MSG_IDENTIFY_CWD:
997: case MSG_IDENTIFY_STDIN:
998: case MSG_IDENTIFY_ENVIRON:
999: case MSG_IDENTIFY_DONE:
1000: server_client_msg_identify(c, &imsg);
1.1 nicm 1001: break;
1.108 nicm 1002: case MSG_COMMAND:
1003: server_client_msg_command(c, &imsg);
1004: break;
1.73 nicm 1005: case MSG_STDIN:
1006: if (datalen != sizeof stdindata)
1007: fatalx("bad MSG_STDIN size");
1.108 nicm 1008: memcpy(&stdindata, data, sizeof stdindata);
1.36 nicm 1009:
1.73 nicm 1010: if (c->stdin_callback == NULL)
1011: break;
1012: if (stdindata.size <= 0)
1013: c->stdin_closed = 1;
1014: else {
1015: evbuffer_add(c->stdin_data, stdindata.data,
1016: stdindata.size);
1017: }
1018: c->stdin_callback(c, c->stdin_closed,
1019: c->stdin_callback_data);
1.33 nicm 1020: break;
1.1 nicm 1021: case MSG_RESIZE:
1022: if (datalen != 0)
1023: fatalx("bad MSG_RESIZE size");
1024:
1.86 nicm 1025: if (c->flags & CLIENT_CONTROL)
1026: break;
1.32 nicm 1027: if (tty_resize(&c->tty)) {
1028: recalculate_sizes();
1029: server_redraw_client(c);
1030: }
1.1 nicm 1031: break;
1032: case MSG_EXITING:
1033: if (datalen != 0)
1034: fatalx("bad MSG_EXITING size");
1035:
1036: c->session = NULL;
1037: tty_close(&c->tty);
1038: server_write_client(c, MSG_EXITED, NULL, 0);
1039: break;
1040: case MSG_WAKEUP:
1041: case MSG_UNLOCK:
1042: if (datalen != 0)
1043: fatalx("bad MSG_WAKEUP size");
1044:
1045: if (!(c->flags & CLIENT_SUSPENDED))
1046: break;
1047: c->flags &= ~CLIENT_SUSPENDED;
1.121 nicm 1048:
1049: if (c->tty.fd == -1) /* exited in the meantime */
1050: break;
1.10 nicm 1051:
1.11 nicm 1052: if (gettimeofday(&c->activity_time, NULL) != 0)
1053: fatal("gettimeofday");
1.47 nicm 1054: if (c->session != NULL)
1055: session_update_activity(c->session);
1.10 nicm 1056:
1.1 nicm 1057: tty_start_tty(&c->tty);
1058: server_redraw_client(c);
1059: recalculate_sizes();
1060: break;
1061: case MSG_SHELL:
1062: if (datalen != 0)
1063: fatalx("bad MSG_SHELL size");
1064:
1065: server_client_msg_shell(c);
1066: break;
1067: }
1068:
1069: imsg_free(&imsg);
1070: }
1071: }
1072:
1073: /* Handle command message. */
1074: void
1.108 nicm 1075: server_client_msg_command(struct client *c, struct imsg *imsg)
1.1 nicm 1076: {
1.108 nicm 1077: struct msg_command_data data;
1078: char *buf;
1079: size_t len;
1080: struct cmd_list *cmdlist = NULL;
1081: int argc;
1082: char **argv, *cause;
1083:
1084: if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data)
1085: fatalx("bad MSG_COMMAND size");
1086: memcpy(&data, imsg->data, sizeof data);
1087:
1.124 nicm 1088: buf = (char *)imsg->data + sizeof data;
1.108 nicm 1089: len = imsg->hdr.len - IMSG_HEADER_SIZE - sizeof data;
1090: if (len > 0 && buf[len - 1] != '\0')
1091: fatalx("bad MSG_COMMAND string");
1092:
1093: argc = data.argc;
1094: if (cmd_unpack_argv(buf, len, argc, &argv) != 0) {
1.94 nicm 1095: cmdq_error(c->cmdq, "command too long");
1.1 nicm 1096: goto error;
1097: }
1098:
1099: if (argc == 0) {
1100: argc = 1;
1101: argv = xcalloc(1, sizeof *argv);
1102: *argv = xstrdup("new-session");
1103: }
1104:
1.94 nicm 1105: if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) {
1106: cmdq_error(c->cmdq, "%s", cause);
1.1 nicm 1107: cmd_free_argv(argc, argv);
1108: goto error;
1109: }
1110: cmd_free_argv(argc, argv);
1111:
1.113 nicm 1112: if (c != cfg_client || cfg_finished)
1.131 nicm 1113: cmdq_run(c->cmdq, cmdlist, NULL);
1.113 nicm 1114: else
1.131 nicm 1115: cmdq_append(c->cmdq, cmdlist, NULL);
1.1 nicm 1116: cmd_list_free(cmdlist);
1117: return;
1118:
1119: error:
1120: if (cmdlist != NULL)
1121: cmd_list_free(cmdlist);
1.88 nicm 1122:
1.36 nicm 1123: c->flags |= CLIENT_EXIT;
1.1 nicm 1124: }
1125:
1126: /* Handle identify message. */
1127: void
1.109 nicm 1128: server_client_msg_identify(struct client *c, struct imsg *imsg)
1.1 nicm 1129: {
1.109 nicm 1130: const char *data;
1131: size_t datalen;
1132: int flags;
1133:
1134: if (c->flags & CLIENT_IDENTIFIED)
1135: fatalx("out-of-order identify message");
1136:
1137: data = imsg->data;
1138: datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1139:
1140: switch (imsg->hdr.type) {
1141: case MSG_IDENTIFY_FLAGS:
1142: if (datalen != sizeof flags)
1143: fatalx("bad MSG_IDENTIFY_FLAGS size");
1144: memcpy(&flags, data, sizeof flags);
1145: c->flags |= flags;
1146: break;
1147: case MSG_IDENTIFY_TERM:
1.110 nicm 1148: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1149: fatalx("bad MSG_IDENTIFY_TERM string");
1150: c->term = xstrdup(data);
1151: break;
1152: case MSG_IDENTIFY_TTYNAME:
1.110 nicm 1153: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1154: fatalx("bad MSG_IDENTIFY_TTYNAME string");
1155: c->ttyname = xstrdup(data);
1156: break;
1157: case MSG_IDENTIFY_CWD:
1158: if (datalen != 0)
1159: fatalx("bad MSG_IDENTIFY_CWD size");
1160: c->cwd = imsg->fd;
1161: break;
1162: case MSG_IDENTIFY_STDIN:
1163: if (datalen != 0)
1164: fatalx("bad MSG_IDENTIFY_STDIN size");
1165: c->fd = imsg->fd;
1166: break;
1167: case MSG_IDENTIFY_ENVIRON:
1.110 nicm 1168: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1169: fatalx("bad MSG_IDENTIFY_ENVIRON string");
1170: if (strchr(data, '=') != NULL)
1171: environ_put(&c->environ, data);
1172: break;
1173: default:
1174: break;
1175: }
1176:
1177: if (imsg->hdr.type != MSG_IDENTIFY_DONE)
1178: return;
1179: c->flags |= CLIENT_IDENTIFIED;
1180:
1181: #ifdef __CYGWIN__
1182: c->fd = open(c->ttyname, O_RDWR|O_NOCTTY);
1183: c->cwd = open(".", O_RDONLY);
1184: #endif
1.75 nicm 1185:
1.109 nicm 1186: if (c->flags & CLIENT_CONTROL) {
1.75 nicm 1187: c->stdin_callback = control_callback;
1.109 nicm 1188:
1.97 nicm 1189: evbuffer_free(c->stderr_data);
1190: c->stderr_data = c->stdout_data;
1.109 nicm 1191:
1192: if (c->flags & CLIENT_CONTROLCONTROL)
1.96 nicm 1193: evbuffer_add_printf(c->stdout_data, "\033P1000p");
1.79 nicm 1194: server_write_client(c, MSG_STDIN, NULL, 0);
1.75 nicm 1195:
1196: c->tty.fd = -1;
1197: c->tty.log_fd = -1;
1198:
1.109 nicm 1199: close(c->fd);
1200: c->fd = -1;
1201:
1.75 nicm 1202: return;
1203: }
1.1 nicm 1204:
1.109 nicm 1205: if (c->fd == -1)
1.104 nicm 1206: return;
1.109 nicm 1207: if (!isatty(c->fd)) {
1208: close(c->fd);
1209: c->fd = -1;
1.80 nicm 1210: return;
1211: }
1.109 nicm 1212: tty_init(&c->tty, c, c->fd, c->term);
1213: if (c->flags & CLIENT_UTF8)
1.1 nicm 1214: c->tty.flags |= TTY_UTF8;
1.109 nicm 1215: if (c->flags & CLIENT_256COLOURS)
1.1 nicm 1216: c->tty.term_flags |= TERM_256COLOURS;
1217:
1218: tty_resize(&c->tty);
1219:
1.109 nicm 1220: if (!(c->flags & CLIENT_CONTROL))
1.86 nicm 1221: c->flags |= CLIENT_TERMINAL;
1.1 nicm 1222: }
1223:
1224: /* Handle shell message. */
1225: void
1226: server_client_msg_shell(struct client *c)
1227: {
1.107 nicm 1228: const char *shell;
1.25 nicm 1229:
1.1 nicm 1230: shell = options_get_string(&global_s_options, "default-shell");
1231: if (*shell == '\0' || areshell(shell))
1232: shell = _PATH_BSHELL;
1.107 nicm 1233: server_write_client(c, MSG_SHELL, shell, strlen(shell) + 1);
1.25 nicm 1234:
1.1 nicm 1235: c->flags |= CLIENT_BAD; /* it will die after exec */
1236: }
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