Annotation of src/usr.bin/tmux/server-client.c, Revision 1.225
1.225 ! nicm 1: /* $OpenBSD: server-client.c,v 1.224 2017/04/21 17:22:20 nicm Exp $ */
1.1 nicm 2:
3: /*
1.181 nicm 4: * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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>
1.162 nicm 21: #include <sys/uio.h>
1.1 nicm 22:
1.114 benno 23: #include <errno.h>
1.12 nicm 24: #include <event.h>
1.1 nicm 25: #include <fcntl.h>
1.162 nicm 26: #include <imsg.h>
1.98 nicm 27: #include <paths.h>
28: #include <stdlib.h>
1.1 nicm 29: #include <string.h>
1.4 nicm 30: #include <time.h>
1.1 nicm 31: #include <unistd.h>
32:
33: #include "tmux.h"
34:
1.190 nicm 35: static void server_client_free(int, short, void *);
36: static void server_client_check_focus(struct window_pane *);
37: static void server_client_check_resize(struct window_pane *);
38: static key_code server_client_check_mouse(struct client *);
39: static void server_client_repeat_timer(int, short, void *);
1.192 nicm 40: static void server_client_click_timer(int, short, void *);
1.190 nicm 41: static void server_client_check_exit(struct client *);
42: static void server_client_check_redraw(struct client *);
43: static void server_client_set_title(struct client *);
44: static void server_client_reset_state(struct client *);
45: static int server_client_assume_paste(struct session *);
46:
47: static void server_client_dispatch(struct imsg *, void *);
48: static void server_client_dispatch_command(struct client *, struct imsg *);
49: static void server_client_dispatch_identify(struct client *, struct imsg *);
50: static void server_client_dispatch_shell(struct client *);
1.140 nicm 51:
1.220 nicm 52: /* Identify mode callback. */
1.214 nicm 53: static void
54: server_client_callback_identify(__unused int fd, __unused short events, void *data)
55: {
56: server_client_clear_identify(data, NULL);
57: }
58:
59: /* Set identify mode on client. */
60: void
61: server_client_set_identify(struct client *c)
62: {
63: struct timeval tv;
64: int delay;
65:
66: delay = options_get_number(c->session->options, "display-panes-time");
67: tv.tv_sec = delay / 1000;
68: tv.tv_usec = (delay % 1000) * 1000L;
69:
70: if (event_initialized(&c->identify_timer))
71: evtimer_del(&c->identify_timer);
72: evtimer_set(&c->identify_timer, server_client_callback_identify, c);
73: evtimer_add(&c->identify_timer, &tv);
74:
75: c->flags |= CLIENT_IDENTIFY;
76: c->tty.flags |= (TTY_FREEZE|TTY_NOCURSOR);
77: server_redraw_client(c);
78: }
79:
80: /* Clear identify mode on client. */
81: void
82: server_client_clear_identify(struct client *c, struct window_pane *wp)
83: {
84: if (~c->flags & CLIENT_IDENTIFY)
85: return;
86: c->flags &= ~CLIENT_IDENTIFY;
87:
88: if (c->identify_callback != NULL)
89: c->identify_callback(c, wp);
90:
91: c->tty.flags &= ~(TTY_FREEZE|TTY_NOCURSOR);
92: server_redraw_client(c);
93: }
94:
1.140 nicm 95: /* Check if this client is inside this server. */
96: int
97: server_client_check_nested(struct client *c)
98: {
99: struct environ_entry *envent;
100: struct window_pane *wp;
101:
1.164 nicm 102: envent = environ_find(c->environ, "TMUX");
1.140 nicm 103: if (envent == NULL || *envent->value == '\0')
104: return (0);
105:
106: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
1.216 nicm 107: if (strcmp(wp->tty, c->ttyname) == 0)
1.140 nicm 108: return (1);
109: }
110: return (0);
111: }
1.1 nicm 112:
1.132 nicm 113: /* Set client key table. */
114: void
1.178 nicm 115: server_client_set_key_table(struct client *c, const char *name)
1.132 nicm 116: {
1.178 nicm 117: if (name == NULL)
118: name = server_client_get_key_table(c);
119:
1.132 nicm 120: key_bindings_unref_table(c->keytable);
121: c->keytable = key_bindings_get_table(name, 1);
122: c->keytable->references++;
123: }
124:
1.178 nicm 125: /* Get default key table. */
126: const char *
127: server_client_get_key_table(struct client *c)
128: {
129: struct session *s = c->session;
130: const char *name;
131:
132: if (s == NULL)
133: return ("root");
134:
135: name = options_get_string(s->options, "key-table");
136: if (*name == '\0')
137: return ("root");
138: return (name);
139: }
140:
1.223 nicm 141: /* Is this table the default key table? */
142: static int
143: server_client_is_default_key_table(struct client *c, struct key_table *table)
1.191 nicm 144: {
1.223 nicm 145: return (strcmp(table->name, server_client_get_key_table(c)) == 0);
1.191 nicm 146: }
147:
1.1 nicm 148: /* Create a new client. */
149: void
150: server_client_create(int fd)
151: {
152: struct client *c;
153:
1.49 nicm 154: setblocking(fd, 0);
1.1 nicm 155:
156: c = xcalloc(1, sizeof *c);
1.141 nicm 157: c->references = 1;
1.162 nicm 158: c->peer = proc_add_peer(server_proc, fd, server_client_dispatch, c);
1.25 nicm 159:
1.10 nicm 160: if (gettimeofday(&c->creation_time, NULL) != 0)
1.1 nicm 161: fatal("gettimeofday failed");
1.11 nicm 162: memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.111 nicm 163:
1.164 nicm 164: c->environ = environ_create();
1.1 nicm 165:
1.146 nicm 166: c->fd = -1;
1.165 nicm 167: c->cwd = NULL;
1.145 nicm 168:
1.194 nicm 169: TAILQ_INIT(&c->queue);
1.94 nicm 170:
1.116 nicm 171: c->stdin_data = evbuffer_new();
172: c->stdout_data = evbuffer_new();
173: c->stderr_data = evbuffer_new();
1.33 nicm 174:
1.1 nicm 175: c->tty.fd = -1;
176: c->title = NULL;
177:
178: c->session = NULL;
1.45 nicm 179: c->last_session = NULL;
1.1 nicm 180: c->tty.sx = 80;
181: c->tty.sy = 24;
182:
183: screen_init(&c->status, c->tty.sx, 1, 0);
184:
185: c->message_string = NULL;
1.136 nicm 186: TAILQ_INIT(&c->message_log);
1.1 nicm 187:
188: c->prompt_string = NULL;
189: c->prompt_buffer = NULL;
190: c->prompt_index = 0;
191:
1.93 nicm 192: c->flags |= CLIENT_FOCUSED;
193:
1.132 nicm 194: c->keytable = key_bindings_get_table("root", 1);
195: c->keytable->references++;
196:
1.17 nicm 197: evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
1.192 nicm 198: evtimer_set(&c->click_timer, server_client_click_timer, c);
1.17 nicm 199:
1.135 nicm 200: TAILQ_INSERT_TAIL(&clients, c, entry);
1.157 nicm 201: log_debug("new client %p", c);
1.72 nicm 202: }
203:
204: /* Open client terminal if needed. */
205: int
1.119 nicm 206: server_client_open(struct client *c, char **cause)
1.72 nicm 207: {
1.75 nicm 208: if (c->flags & CLIENT_CONTROL)
209: return (0);
1.120 nicm 210:
211: if (strcmp(c->ttyname, "/dev/tty") == 0) {
212: *cause = xstrdup("can't use /dev/tty");
213: return (-1);
214: }
1.75 nicm 215:
1.72 nicm 216: if (!(c->flags & CLIENT_TERMINAL)) {
1.116 nicm 217: *cause = xstrdup("not a terminal");
1.72 nicm 218: return (-1);
219: }
220:
1.119 nicm 221: if (tty_open(&c->tty, cause) != 0)
1.72 nicm 222: return (-1);
223:
224: return (0);
1.1 nicm 225: }
226:
227: /* Lost a client. */
228: void
229: server_client_lost(struct client *c)
230: {
1.136 nicm 231: struct message_entry *msg, *msg1;
1.1 nicm 232:
1.141 nicm 233: c->flags |= CLIENT_DEAD;
234:
1.214 nicm 235: server_client_clear_identify(c, NULL);
1.141 nicm 236: status_prompt_clear(c);
237: status_message_clear(c);
238:
239: if (c->stdin_callback != NULL)
240: c->stdin_callback(c, 1, c->stdin_callback_data);
241:
1.135 nicm 242: TAILQ_REMOVE(&clients, c, entry);
1.157 nicm 243: log_debug("lost client %p", c);
1.1 nicm 244:
245: /*
246: * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
247: * and tty_free might close an unrelated fd.
248: */
249: if (c->flags & CLIENT_TERMINAL)
250: tty_free(&c->tty);
1.109 nicm 251: free(c->ttyname);
252: free(c->term);
1.1 nicm 253:
1.113 nicm 254: evbuffer_free(c->stdin_data);
255: evbuffer_free(c->stdout_data);
1.97 nicm 256: if (c->stderr_data != c->stdout_data)
1.126 nicm 257: evbuffer_free(c->stderr_data);
1.33 nicm 258:
1.148 nicm 259: if (event_initialized(&c->status_timer))
260: evtimer_del(&c->status_timer);
1.1 nicm 261: screen_free(&c->status);
262:
1.77 nicm 263: free(c->title);
1.165 nicm 264: free((void *)c->cwd);
1.1 nicm 265:
1.17 nicm 266: evtimer_del(&c->repeat_timer);
1.192 nicm 267: evtimer_del(&c->click_timer);
1.17 nicm 268:
1.132 nicm 269: key_bindings_unref_table(c->keytable);
270:
1.69 nicm 271: if (event_initialized(&c->identify_timer))
272: evtimer_del(&c->identify_timer);
1.15 nicm 273:
1.77 nicm 274: free(c->message_string);
1.116 nicm 275: if (event_initialized(&c->message_timer))
1.69 nicm 276: evtimer_del(&c->message_timer);
1.136 nicm 277: TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
1.77 nicm 278: free(msg->msg);
1.136 nicm 279: TAILQ_REMOVE(&c->message_log, msg, entry);
280: free(msg);
1.21 nicm 281: }
1.1 nicm 282:
1.77 nicm 283: free(c->prompt_string);
284: free(c->prompt_buffer);
1.61 nicm 285:
1.164 nicm 286: environ_free(c->environ);
1.1 nicm 287:
1.162 nicm 288: proc_remove_peer(c->peer);
289: c->peer = NULL;
1.13 nicm 290:
1.142 nicm 291: server_client_unref(c);
1.71 nicm 292:
293: server_add_accept(0); /* may be more file descriptors now */
1.1 nicm 294:
295: recalculate_sizes();
1.41 nicm 296: server_check_unattached();
1.19 nicm 297: server_update_socket();
1.141 nicm 298: }
299:
300: /* Remove reference from a client. */
301: void
1.142 nicm 302: server_client_unref(struct client *c)
1.141 nicm 303: {
1.157 nicm 304: log_debug("unref client %p (%d references)", c, c->references);
1.141 nicm 305:
306: c->references--;
307: if (c->references == 0)
308: event_once(-1, EV_TIMEOUT, server_client_free, c, NULL);
309: }
310:
311: /* Free dead client. */
1.190 nicm 312: static void
1.170 nicm 313: server_client_free(__unused int fd, __unused short events, void *arg)
1.141 nicm 314: {
315: struct client *c = arg;
316:
1.157 nicm 317: log_debug("free client %p (%d references)", c, c->references);
1.141 nicm 318:
1.194 nicm 319: if (!TAILQ_EMPTY(&c->queue))
320: fatalx("queue not empty");
321:
1.216 nicm 322: if (c->references == 0) {
323: free((void *)c->name);
1.141 nicm 324: free(c);
1.216 nicm 325: }
1.9 nicm 326: }
327:
1.220 nicm 328: /* Suspend a client. */
329: void
330: server_client_suspend(struct client *c)
331: {
332: struct session *s = c->session;
333:
334: if (s == NULL || (c->flags & CLIENT_DETACHING))
335: return;
336:
337: tty_stop_tty(&c->tty);
338: c->flags |= CLIENT_SUSPENDED;
339: proc_send(c->peer, MSG_SUSPEND, -1, NULL, 0);
340: }
341:
1.174 nicm 342: /* Detach a client. */
343: void
344: server_client_detach(struct client *c, enum msgtype msgtype)
345: {
1.220 nicm 346: struct session *s = c->session;
1.174 nicm 347:
1.220 nicm 348: if (s == NULL || (c->flags & CLIENT_DETACHING))
1.174 nicm 349: return;
350:
1.220 nicm 351: c->flags |= CLIENT_DETACHING;
1.196 nicm 352: notify_client("client-detached", c);
1.174 nicm 353: proc_send_s(c->peer, msgtype, s->name);
1.207 nicm 354: }
355:
1.208 nicm 356: /* Execute command to replace a client. */
1.207 nicm 357: void
358: server_client_exec(struct client *c, const char *cmd)
359: {
360: struct session *s = c->session;
1.208 nicm 361: char *msg;
362: const char *shell;
1.207 nicm 363: size_t cmdsize, shellsize;
364:
365: if (*cmd == '\0')
366: return;
367: cmdsize = strlen(cmd) + 1;
368:
369: if (s != NULL)
370: shell = options_get_string(s->options, "default-shell");
371: else
372: shell = options_get_string(global_s_options, "default-shell");
373: shellsize = strlen(shell) + 1;
374:
375: msg = xmalloc(cmdsize + shellsize);
376: memcpy(msg, cmd, cmdsize);
377: memcpy(msg + cmdsize, shell, shellsize);
378:
379: proc_send(c->peer, MSG_EXEC, -1, msg, cmdsize + shellsize);
380: free(msg);
1.174 nicm 381: }
382:
1.66 nicm 383: /* Check for mouse keys. */
1.190 nicm 384: static key_code
1.131 nicm 385: server_client_check_mouse(struct client *c)
1.66 nicm 386: {
1.192 nicm 387: struct session *s = c->session;
388: struct mouse_event *m = &c->tty.mouse;
389: struct window *w;
390: struct window_pane *wp;
391: u_int x, y, b;
392: int flag;
393: key_code key;
394: struct timeval tv;
1.209 nicm 395: enum { NOTYPE, MOVE, DOWN, UP, DRAG, WHEEL, DOUBLE, TRIPLE } type;
396: enum { NOWHERE, PANE, STATUS, BORDER } where;
397:
398: type = NOTYPE;
399: where = NOWHERE;
1.131 nicm 400:
401: log_debug("mouse %02x at %u,%u (last %u,%u) (%d)", m->b, m->x, m->y,
402: m->lx, m->ly, c->tty.mouse_drag_flag);
403:
404: /* What type of event is this? */
1.209 nicm 405: if ((m->sgr_type != ' ' &&
406: MOUSE_DRAG(m->sgr_b) &&
407: MOUSE_BUTTONS(m->sgr_b) == 3) ||
408: (m->sgr_type == ' ' &&
409: MOUSE_DRAG(m->b) &&
410: MOUSE_BUTTONS(m->b) == 3 &&
411: MOUSE_BUTTONS(m->lb) == 3)) {
412: type = MOVE;
413: x = m->x, y = m->y, b = 0;
414: log_debug("move at %u,%u", x, y);
415: } else if (MOUSE_DRAG(m->b)) {
1.131 nicm 416: type = DRAG;
417: if (c->tty.mouse_drag_flag) {
418: x = m->x, y = m->y, b = m->b;
419: log_debug("drag update at %u,%u", x, y);
420: } else {
421: x = m->lx, y = m->ly, b = m->lb;
422: log_debug("drag start at %u,%u", x, y);
423: }
424: } else if (MOUSE_WHEEL(m->b)) {
425: type = WHEEL;
426: x = m->x, y = m->y, b = m->b;
427: log_debug("wheel at %u,%u", x, y);
1.200 nicm 428: } else if (MOUSE_RELEASE(m->b)) {
1.131 nicm 429: type = UP;
430: x = m->x, y = m->y, b = m->lb;
431: log_debug("up at %u,%u", x, y);
432: } else {
1.192 nicm 433: if (c->flags & CLIENT_DOUBLECLICK) {
434: evtimer_del(&c->click_timer);
435: c->flags &= ~CLIENT_DOUBLECLICK;
436: if (m->b == c->click_button) {
437: type = DOUBLE;
438: x = m->x, y = m->y, b = m->b;
439: log_debug("double-click at %u,%u", x, y);
440: flag = CLIENT_TRIPLECLICK;
441: goto add_timer;
442: }
443: } else if (c->flags & CLIENT_TRIPLECLICK) {
444: evtimer_del(&c->click_timer);
445: c->flags &= ~CLIENT_TRIPLECLICK;
446: if (m->b == c->click_button) {
447: type = TRIPLE;
448: x = m->x, y = m->y, b = m->b;
449: log_debug("triple-click at %u,%u", x, y);
450: goto have_event;
451: }
452: }
453:
1.131 nicm 454: type = DOWN;
455: x = m->x, y = m->y, b = m->b;
456: log_debug("down at %u,%u", x, y);
1.192 nicm 457: flag = CLIENT_DOUBLECLICK;
458:
459: add_timer:
460: if (KEYC_CLICK_TIMEOUT != 0) {
461: c->flags |= flag;
462: c->click_button = m->b;
463:
464: tv.tv_sec = KEYC_CLICK_TIMEOUT / 1000;
465: tv.tv_usec = (KEYC_CLICK_TIMEOUT % 1000) * 1000L;
466: evtimer_del(&c->click_timer);
467: evtimer_add(&c->click_timer, &tv);
468: }
1.131 nicm 469: }
1.192 nicm 470:
471: have_event:
1.131 nicm 472: if (type == NOTYPE)
1.177 nicm 473: return (KEYC_UNKNOWN);
1.131 nicm 474:
475: /* Always save the session. */
476: m->s = s->id;
477:
478: /* Is this on the status line? */
479: m->statusat = status_at_line(c);
480: if (m->statusat != -1 && y == (u_int)m->statusat) {
481: w = status_get_window_at(c, x);
482: if (w == NULL)
1.177 nicm 483: return (KEYC_UNKNOWN);
1.131 nicm 484: m->w = w->id;
485: where = STATUS;
486: } else
487: m->w = -1;
488:
489: /* Not on status line. Adjust position and check for border or pane. */
490: if (where == NOWHERE) {
491: if (m->statusat == 0 && y > 0)
492: y--;
493: else if (m->statusat > 0 && y >= (u_int)m->statusat)
494: y = m->statusat - 1;
495:
496: TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
497: if ((wp->xoff + wp->sx == x &&
498: wp->yoff <= 1 + y &&
499: wp->yoff + wp->sy >= y) ||
500: (wp->yoff + wp->sy == y &&
501: wp->xoff <= 1 + x &&
502: wp->xoff + wp->sx >= x))
503: break;
504: }
505: if (wp != NULL)
506: where = BORDER;
507: else {
508: wp = window_get_active_at(s->curw->window, x, y);
1.173 nicm 509: if (wp != NULL) {
1.131 nicm 510: where = PANE;
1.173 nicm 511: log_debug("mouse at %u,%u is on pane %%%u",
512: x, y, wp->id);
513: }
1.131 nicm 514: }
515: if (where == NOWHERE)
1.177 nicm 516: return (KEYC_UNKNOWN);
1.131 nicm 517: m->wp = wp->id;
518: m->w = wp->window->id;
519: } else
520: m->wp = -1;
521:
522: /* Stop dragging if needed. */
1.200 nicm 523: if (type != DRAG && type != WHEEL && c->tty.mouse_drag_flag) {
1.131 nicm 524: if (c->tty.mouse_drag_release != NULL)
525: c->tty.mouse_drag_release(c, m);
526:
527: c->tty.mouse_drag_update = NULL;
528: c->tty.mouse_drag_release = NULL;
529:
1.182 nicm 530: /*
1.183 nicm 531: * End a mouse drag by passing a MouseDragEnd key corresponding
532: * to the button that started the drag.
1.182 nicm 533: */
534: switch (c->tty.mouse_drag_flag) {
535: case 1:
536: if (where == PANE)
1.183 nicm 537: key = KEYC_MOUSEDRAGEND1_PANE;
1.182 nicm 538: if (where == STATUS)
1.183 nicm 539: key = KEYC_MOUSEDRAGEND1_STATUS;
1.182 nicm 540: if (where == BORDER)
1.183 nicm 541: key = KEYC_MOUSEDRAGEND1_BORDER;
1.182 nicm 542: break;
543: case 2:
544: if (where == PANE)
1.183 nicm 545: key = KEYC_MOUSEDRAGEND2_PANE;
1.182 nicm 546: if (where == STATUS)
1.183 nicm 547: key = KEYC_MOUSEDRAGEND2_STATUS;
1.182 nicm 548: if (where == BORDER)
1.183 nicm 549: key = KEYC_MOUSEDRAGEND2_BORDER;
1.182 nicm 550: break;
551: case 3:
552: if (where == PANE)
1.183 nicm 553: key = KEYC_MOUSEDRAGEND3_PANE;
1.182 nicm 554: if (where == STATUS)
1.183 nicm 555: key = KEYC_MOUSEDRAGEND3_STATUS;
1.182 nicm 556: if (where == BORDER)
1.183 nicm 557: key = KEYC_MOUSEDRAGEND3_BORDER;
1.182 nicm 558: break;
559: default:
560: key = KEYC_MOUSE;
561: break;
562: }
1.131 nicm 563: c->tty.mouse_drag_flag = 0;
1.182 nicm 564:
565: return (key);
1.131 nicm 566: }
567:
568: /* Convert to a key binding. */
1.177 nicm 569: key = KEYC_UNKNOWN;
1.131 nicm 570: switch (type) {
571: case NOTYPE:
572: break;
1.209 nicm 573: case MOVE:
574: if (where == PANE)
575: key = KEYC_MOUSEMOVE_PANE;
576: if (where == STATUS)
577: key = KEYC_MOUSEMOVE_STATUS;
578: if (where == BORDER)
579: key = KEYC_MOUSEMOVE_BORDER;
580: break;
1.131 nicm 581: case DRAG:
1.204 nicm 582: if (c->tty.mouse_drag_update != NULL)
583: key = KEYC_DRAGGING;
584: else {
1.131 nicm 585: switch (MOUSE_BUTTONS(b)) {
586: case 0:
587: if (where == PANE)
588: key = KEYC_MOUSEDRAG1_PANE;
589: if (where == STATUS)
590: key = KEYC_MOUSEDRAG1_STATUS;
591: if (where == BORDER)
592: key = KEYC_MOUSEDRAG1_BORDER;
593: break;
594: case 1:
595: if (where == PANE)
596: key = KEYC_MOUSEDRAG2_PANE;
597: if (where == STATUS)
598: key = KEYC_MOUSEDRAG2_STATUS;
599: if (where == BORDER)
600: key = KEYC_MOUSEDRAG2_BORDER;
601: break;
602: case 2:
603: if (where == PANE)
604: key = KEYC_MOUSEDRAG3_PANE;
605: if (where == STATUS)
606: key = KEYC_MOUSEDRAG3_STATUS;
607: if (where == BORDER)
608: key = KEYC_MOUSEDRAG3_BORDER;
609: break;
610: }
611: }
1.66 nicm 612:
1.182 nicm 613: /*
614: * Begin a drag by setting the flag to a non-zero value that
615: * corresponds to the mouse button in use.
616: */
617: c->tty.mouse_drag_flag = MOUSE_BUTTONS(b) + 1;
1.131 nicm 618: break;
619: case WHEEL:
620: if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) {
621: if (where == PANE)
622: key = KEYC_WHEELUP_PANE;
623: if (where == STATUS)
624: key = KEYC_WHEELUP_STATUS;
625: if (where == BORDER)
626: key = KEYC_WHEELUP_BORDER;
627: } else {
628: if (where == PANE)
629: key = KEYC_WHEELDOWN_PANE;
630: if (where == STATUS)
631: key = KEYC_WHEELDOWN_STATUS;
632: if (where == BORDER)
633: key = KEYC_WHEELDOWN_BORDER;
634: }
635: break;
636: case UP:
637: switch (MOUSE_BUTTONS(b)) {
638: case 0:
639: if (where == PANE)
640: key = KEYC_MOUSEUP1_PANE;
641: if (where == STATUS)
642: key = KEYC_MOUSEUP1_STATUS;
643: if (where == BORDER)
644: key = KEYC_MOUSEUP1_BORDER;
645: break;
646: case 1:
647: if (where == PANE)
648: key = KEYC_MOUSEUP2_PANE;
649: if (where == STATUS)
650: key = KEYC_MOUSEUP2_STATUS;
651: if (where == BORDER)
652: key = KEYC_MOUSEUP2_BORDER;
653: break;
654: case 2:
655: if (where == PANE)
656: key = KEYC_MOUSEUP3_PANE;
657: if (where == STATUS)
658: key = KEYC_MOUSEUP3_STATUS;
659: if (where == BORDER)
660: key = KEYC_MOUSEUP3_BORDER;
661: break;
662: }
663: break;
664: case DOWN:
665: switch (MOUSE_BUTTONS(b)) {
666: case 0:
667: if (where == PANE)
668: key = KEYC_MOUSEDOWN1_PANE;
669: if (where == STATUS)
670: key = KEYC_MOUSEDOWN1_STATUS;
671: if (where == BORDER)
672: key = KEYC_MOUSEDOWN1_BORDER;
673: break;
674: case 1:
675: if (where == PANE)
676: key = KEYC_MOUSEDOWN2_PANE;
677: if (where == STATUS)
678: key = KEYC_MOUSEDOWN2_STATUS;
679: if (where == BORDER)
680: key = KEYC_MOUSEDOWN2_BORDER;
681: break;
682: case 2:
683: if (where == PANE)
684: key = KEYC_MOUSEDOWN3_PANE;
685: if (where == STATUS)
686: key = KEYC_MOUSEDOWN3_STATUS;
687: if (where == BORDER)
688: key = KEYC_MOUSEDOWN3_BORDER;
689: break;
1.66 nicm 690: }
1.131 nicm 691: break;
1.192 nicm 692: case DOUBLE:
693: switch (MOUSE_BUTTONS(b)) {
694: case 0:
695: if (where == PANE)
696: key = KEYC_DOUBLECLICK1_PANE;
697: if (where == STATUS)
698: key = KEYC_DOUBLECLICK1_STATUS;
699: if (where == BORDER)
700: key = KEYC_DOUBLECLICK1_BORDER;
701: break;
702: case 1:
703: if (where == PANE)
704: key = KEYC_DOUBLECLICK2_PANE;
705: if (where == STATUS)
706: key = KEYC_DOUBLECLICK2_STATUS;
707: if (where == BORDER)
708: key = KEYC_DOUBLECLICK2_BORDER;
709: break;
710: case 2:
711: if (where == PANE)
712: key = KEYC_DOUBLECLICK3_PANE;
713: if (where == STATUS)
714: key = KEYC_DOUBLECLICK3_STATUS;
715: if (where == BORDER)
716: key = KEYC_DOUBLECLICK3_BORDER;
717: break;
718: }
719: break;
720: case TRIPLE:
721: switch (MOUSE_BUTTONS(b)) {
722: case 0:
723: if (where == PANE)
724: key = KEYC_TRIPLECLICK1_PANE;
725: if (where == STATUS)
726: key = KEYC_TRIPLECLICK1_STATUS;
727: if (where == BORDER)
728: key = KEYC_TRIPLECLICK1_BORDER;
729: break;
730: case 1:
731: if (where == PANE)
732: key = KEYC_TRIPLECLICK2_PANE;
733: if (where == STATUS)
734: key = KEYC_TRIPLECLICK2_STATUS;
735: if (where == BORDER)
736: key = KEYC_TRIPLECLICK2_BORDER;
737: break;
738: case 2:
739: if (where == PANE)
740: key = KEYC_TRIPLECLICK3_PANE;
741: if (where == STATUS)
742: key = KEYC_TRIPLECLICK3_STATUS;
743: if (where == BORDER)
744: key = KEYC_TRIPLECLICK3_BORDER;
745: break;
746: }
747: break;
1.66 nicm 748: }
1.177 nicm 749: if (key == KEYC_UNKNOWN)
750: return (KEYC_UNKNOWN);
1.66 nicm 751:
1.131 nicm 752: /* Apply modifiers if any. */
753: if (b & MOUSE_MASK_META)
754: key |= KEYC_ESCAPE;
755: if (b & MOUSE_MASK_CTRL)
756: key |= KEYC_CTRL;
757: if (b & MOUSE_MASK_SHIFT)
758: key |= KEYC_SHIFT;
1.66 nicm 759:
1.131 nicm 760: return (key);
1.66 nicm 761: }
762:
1.82 nicm 763: /* Is this fast enough to probably be a paste? */
1.190 nicm 764: static int
1.82 nicm 765: server_client_assume_paste(struct session *s)
766: {
767: struct timeval tv;
1.84 nicm 768: int t;
1.82 nicm 769:
1.163 nicm 770: if ((t = options_get_number(s->options, "assume-paste-time")) == 0)
1.83 nicm 771: return (0);
1.82 nicm 772:
773: timersub(&s->activity_time, &s->last_activity_time, &tv);
1.171 nicm 774: if (tv.tv_sec == 0 && tv.tv_usec < t * 1000) {
775: log_debug("session %s pasting (flag %d)", s->name,
776: !!(s->flags & SESSION_PASTING));
777: if (s->flags & SESSION_PASTING)
778: return (1);
779: s->flags |= SESSION_PASTING;
780: return (0);
781: }
782: log_debug("session %s not pasting", s->name);
783: s->flags &= ~SESSION_PASTING;
1.83 nicm 784: return (0);
1.82 nicm 785: }
786:
1.18 nicm 787: /* Handle data key input from client. */
788: void
1.168 nicm 789: server_client_handle_key(struct client *c, key_code key)
1.18 nicm 790: {
1.131 nicm 791: struct mouse_event *m = &c->tty.mouse;
1.132 nicm 792: struct session *s = c->session;
1.18 nicm 793: struct window *w;
794: struct window_pane *wp;
795: struct timeval tv;
1.223 nicm 796: struct key_table *table, *first;
1.132 nicm 797: struct key_binding bd_find, *bd;
798: int xtimeout;
1.201 nicm 799: struct cmd_find_state fs;
1.18 nicm 800:
801: /* Check the client is good to accept input. */
1.132 nicm 802: if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
1.18 nicm 803: return;
1.132 nicm 804: w = s->curw->window;
1.18 nicm 805:
806: /* Update the activity timer. */
807: if (gettimeofday(&c->activity_time, NULL) != 0)
808: fatal("gettimeofday failed");
1.149 nicm 809: session_update_activity(s, &c->activity_time);
1.18 nicm 810:
1.132 nicm 811: /* Number keys jump to pane in identify mode. */
1.25 nicm 812: if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
1.30 nicm 813: if (c->flags & CLIENT_READONLY)
814: return;
1.95 nicm 815: window_unzoom(w);
1.18 nicm 816: wp = window_pane_at_index(w, key - '0');
1.187 nicm 817: if (wp != NULL && !window_pane_visible(wp))
818: wp = NULL;
1.214 nicm 819: server_client_clear_identify(c, wp);
1.18 nicm 820: return;
821: }
822:
823: /* Handle status line. */
1.30 nicm 824: if (!(c->flags & CLIENT_READONLY)) {
825: status_message_clear(c);
1.214 nicm 826: server_client_clear_identify(c, NULL);
1.30 nicm 827: }
1.18 nicm 828: if (c->prompt_string != NULL) {
1.193 nicm 829: if (c->flags & CLIENT_READONLY)
830: return;
831: if (status_prompt_key(c, key) == 0)
832: return;
1.18 nicm 833: }
834:
835: /* Check for mouse keys. */
1.204 nicm 836: m->valid = 0;
1.18 nicm 837: if (key == KEYC_MOUSE) {
1.30 nicm 838: if (c->flags & CLIENT_READONLY)
839: return;
1.131 nicm 840: key = server_client_check_mouse(c);
1.177 nicm 841: if (key == KEYC_UNKNOWN)
1.131 nicm 842: return;
843:
844: m->valid = 1;
845: m->key = key;
1.203 nicm 846:
847: /*
1.204 nicm 848: * Mouse drag is in progress, so fire the callback (now that
849: * the mouse event is valid).
1.203 nicm 850: */
1.204 nicm 851: if (key == KEYC_DRAGGING) {
852: c->tty.mouse_drag_update(c, m);
1.203 nicm 853: return;
1.204 nicm 854: }
1.131 nicm 855: } else
856: m->valid = 0;
1.18 nicm 857:
1.202 nicm 858: /* Find affected pane. */
859: if (KEYC_IS_MOUSE(key) && m->valid)
860: wp = cmd_mouse_pane(m, NULL, NULL);
861: else
862: wp = w->active;
863:
864: /* Forward mouse keys if disabled. */
1.206 nicm 865: if (KEYC_IS_MOUSE(key) && !options_get_number(s->options, "mouse"))
1.202 nicm 866: goto forward;
867:
1.132 nicm 868: /* Treat everything as a regular key when pasting is detected. */
1.161 nicm 869: if (!KEYC_IS_MOUSE(key) && server_client_assume_paste(s))
870: goto forward;
1.18 nicm 871:
1.191 nicm 872: /*
873: * Work out the current key table. If the pane is in a mode, use
874: * the mode table instead of the default key table.
875: */
1.223 nicm 876: if (server_client_is_default_key_table(c, c->keytable) &&
877: wp != NULL &&
878: wp->mode != NULL &&
879: wp->mode->key_table != NULL)
880: table = key_bindings_get_table(wp->mode->key_table(wp), 1);
881: else
1.191 nicm 882: table = c->keytable;
1.223 nicm 883: first = table;
1.191 nicm 884:
1.205 nicm 885: /*
886: * The prefix always takes precedence and forces a switch to the prefix
887: * table, unless we are already there.
888: */
889: if ((key == (key_code)options_get_number(s->options, "prefix") ||
890: key == (key_code)options_get_number(s->options, "prefix2")) &&
891: strcmp(table->name, "prefix") != 0) {
892: server_client_set_key_table(c, "prefix");
893: server_status_client(c);
894: return;
895: }
896:
1.223 nicm 897: retry:
898: /* Log key table. */
899: if (wp == NULL)
900: log_debug("key table %s (no pane)", table->name);
901: else
902: log_debug("key table %s (pane %%%u)", table->name, wp->id);
1.225 ! nicm 903: if (c->flags & CLIENT_REPEAT)
! 904: log_debug("currently repeating");
1.223 nicm 905:
1.132 nicm 906: /* Try to see if there is a key binding in the current table. */
907: bd_find.key = key;
1.191 nicm 908: bd = RB_FIND(key_bindings, &table->key_bindings, &bd_find);
1.132 nicm 909: if (bd != NULL) {
910: /*
911: * Key was matched in this table. If currently repeating but a
912: * non-repeating binding was found, stop repeating and try
913: * again in the root table.
914: */
1.222 nicm 915: if ((c->flags & CLIENT_REPEAT) &&
916: (~bd->flags & KEY_BINDING_REPEAT)) {
1.178 nicm 917: server_client_set_key_table(c, NULL);
1.132 nicm 918: c->flags &= ~CLIENT_REPEAT;
1.85 nicm 919: server_status_client(c);
1.223 nicm 920: table = c->keytable;
1.132 nicm 921: goto retry;
1.18 nicm 922: }
1.223 nicm 923: log_debug("found in key table %s", table->name);
1.82 nicm 924:
1.132 nicm 925: /*
926: * Take a reference to this table to make sure the key binding
927: * doesn't disappear.
928: */
929: table->references++;
930:
931: /*
932: * If this is a repeating key, start the timer. Otherwise reset
933: * the client back to the root table.
934: */
1.163 nicm 935: xtimeout = options_get_number(s->options, "repeat-time");
1.222 nicm 936: if (xtimeout != 0 && (bd->flags & KEY_BINDING_REPEAT)) {
1.132 nicm 937: c->flags |= CLIENT_REPEAT;
938:
939: tv.tv_sec = xtimeout / 1000;
940: tv.tv_usec = (xtimeout % 1000) * 1000L;
941: evtimer_del(&c->repeat_timer);
942: evtimer_add(&c->repeat_timer, &tv);
943: } else {
1.18 nicm 944: c->flags &= ~CLIENT_REPEAT;
1.178 nicm 945: server_client_set_key_table(c, NULL);
1.18 nicm 946: }
1.132 nicm 947: server_status_client(c);
948:
1.201 nicm 949: /* Find default state if the pane is known. */
1.221 nicm 950: if (KEYC_IS_MOUSE(key) && m->valid && wp != NULL) {
1.224 nicm 951: cmd_find_from_winlink_pane(&fs, s->curw, wp);
1.201 nicm 952: cmd_find_log_state(__func__, &fs);
953:
954: if (!cmd_find_valid_state(&fs))
955: fatalx("invalid key state");
1.221 nicm 956: key_bindings_dispatch(bd, c, m, &fs);
957: } else
958: key_bindings_dispatch(bd, c, m, NULL);
1.132 nicm 959: key_bindings_unref_table(table);
1.18 nicm 960: return;
961: }
962:
1.132 nicm 963: /*
1.223 nicm 964: * No match in this table. If not in the root table or if repeating,
965: * switch the client back to the root table and try again.
1.132 nicm 966: */
1.223 nicm 967: log_debug("not found in key table %s", table->name);
968: if (!server_client_is_default_key_table(c, table) ||
969: (c->flags & CLIENT_REPEAT)) {
1.178 nicm 970: server_client_set_key_table(c, NULL);
1.18 nicm 971: c->flags &= ~CLIENT_REPEAT;
1.132 nicm 972: server_status_client(c);
1.223 nicm 973: table = c->keytable;
1.132 nicm 974: goto retry;
1.18 nicm 975: }
976:
1.223 nicm 977: /*
978: * No match in the root table either. If this wasn't the first table
979: * tried, don't pass the key to the pane.
980: */
981: if (first != table) {
1.178 nicm 982: server_client_set_key_table(c, NULL);
1.132 nicm 983: server_status_client(c);
1.161 nicm 984: return;
985: }
986:
987: forward:
988: if (c->flags & CLIENT_READONLY)
989: return;
990: if (wp != NULL)
1.132 nicm 991: window_pane_key(wp, c, s, key, m);
1.18 nicm 992: }
993:
1.2 nicm 994: /* Client functions that need to happen every loop. */
995: void
996: server_client_loop(void)
997: {
998: struct client *c;
999: struct window *w;
1000: struct window_pane *wp;
1.197 nicm 1001: int focus;
1.2 nicm 1002:
1.135 nicm 1003: TAILQ_FOREACH(c, &clients, entry) {
1.36 nicm 1004: server_client_check_exit(c);
1005: if (c->session != NULL) {
1006: server_client_check_redraw(c);
1007: server_client_reset_state(c);
1008: }
1.2 nicm 1009: }
1010:
1011: /*
1012: * Any windows will have been redrawn as part of clients, so clear
1.92 nicm 1013: * their flags now. Also check pane focus and resize.
1.2 nicm 1014: */
1.197 nicm 1015: focus = options_get_number(global_options, "focus-events");
1.134 nicm 1016: RB_FOREACH(w, windows, &windows) {
1.91 nicm 1017: TAILQ_FOREACH(wp, &w->panes, entry) {
1.101 nicm 1018: if (wp->fd != -1) {
1.197 nicm 1019: if (focus)
1020: server_client_check_focus(wp);
1.101 nicm 1021: server_client_check_resize(wp);
1022: }
1.2 nicm 1023: wp->flags &= ~PANE_REDRAW;
1.91 nicm 1024: }
1.150 nicm 1025: check_window_name(w);
1.2 nicm 1026: }
1.92 nicm 1027: }
1028:
1.211 nicm 1029: /* Resize timer event. */
1.188 nicm 1030: static void
1031: server_client_resize_event(__unused int fd, __unused short events, void *data)
1.92 nicm 1032: {
1.188 nicm 1033: struct window_pane *wp = data;
1034: struct winsize ws;
1035:
1036: evtimer_del(&wp->resize_timer);
1.92 nicm 1037:
1.101 nicm 1038: if (!(wp->flags & PANE_RESIZE))
1.92 nicm 1039: return;
1040:
1041: memset(&ws, 0, sizeof ws);
1042: ws.ws_col = wp->sx;
1043: ws.ws_row = wp->sy;
1044:
1.100 nicm 1045: if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
1.92 nicm 1046: fatal("ioctl failed");
1047:
1048: wp->flags &= ~PANE_RESIZE;
1.188 nicm 1049: }
1050:
1051: /* Check if pane should be resized. */
1.190 nicm 1052: static void
1.188 nicm 1053: server_client_check_resize(struct window_pane *wp)
1054: {
1055: struct timeval tv = { .tv_usec = 250000 };
1056:
1057: if (!(wp->flags & PANE_RESIZE))
1058: return;
1059:
1060: if (!event_initialized(&wp->resize_timer))
1061: evtimer_set(&wp->resize_timer, server_client_resize_event, wp);
1062:
1063: /*
1064: * The first resize should happen immediately, so if the timer is not
1065: * running, do it now.
1066: */
1067: if (!evtimer_pending(&wp->resize_timer, NULL))
1068: server_client_resize_event(-1, 0, wp);
1069:
1070: /*
1071: * If the pane is in the alternate screen, let the timer expire and
1072: * resize to give the application a chance to redraw. If not, keep
1073: * pushing the timer back.
1074: */
1075: if (wp->saved_grid != NULL && evtimer_pending(&wp->resize_timer, NULL))
1076: return;
1077: evtimer_del(&wp->resize_timer);
1078: evtimer_add(&wp->resize_timer, &tv);
1.91 nicm 1079: }
1080:
1081: /* Check whether pane should be focused. */
1.190 nicm 1082: static void
1.91 nicm 1083: server_client_check_focus(struct window_pane *wp)
1084: {
1.93 nicm 1085: struct client *c;
1.102 nicm 1086: int push;
1087:
1088: /* Do we need to push the focus state? */
1089: push = wp->flags & PANE_FOCUSPUSH;
1090: wp->flags &= ~PANE_FOCUSPUSH;
1.91 nicm 1091:
1092: /* If we don't care about focus, forget it. */
1093: if (!(wp->base.mode & MODE_FOCUSON))
1094: return;
1095:
1096: /* If we're not the active pane in our window, we're not focused. */
1097: if (wp->window->active != wp)
1098: goto not_focused;
1099:
1100: /* If we're in a mode, we're not focused. */
1101: if (wp->screen != &wp->base)
1102: goto not_focused;
1103:
1104: /*
1.93 nicm 1105: * If our window is the current window in any focused clients with an
1106: * attached session, we're focused.
1.91 nicm 1107: */
1.135 nicm 1108: TAILQ_FOREACH(c, &clients, entry) {
1109: if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
1.91 nicm 1110: continue;
1.93 nicm 1111: if (c->session->flags & SESSION_UNATTACHED)
1112: continue;
1113:
1114: if (c->session->curw->window == wp->window)
1.91 nicm 1115: goto focused;
1116: }
1117:
1118: not_focused:
1.102 nicm 1119: if (push || (wp->flags & PANE_FOCUSED))
1.91 nicm 1120: bufferevent_write(wp->event, "\033[O", 3);
1121: wp->flags &= ~PANE_FOCUSED;
1122: return;
1123:
1124: focused:
1.102 nicm 1125: if (push || !(wp->flags & PANE_FOCUSED))
1.91 nicm 1126: bufferevent_write(wp->event, "\033[I", 3);
1127: wp->flags |= PANE_FOCUSED;
1.2 nicm 1128: }
1129:
1.18 nicm 1130: /*
1131: * Update cursor position and mode settings. The scroll region and attributes
1132: * are cleared when idle (waiting for an event) as this is the most likely time
1133: * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
1134: * compromise between excessive resets and likelihood of an interrupt.
1135: *
1136: * tty_region/tty_reset/tty_update_mode already take care of not resetting
1137: * things that are already in their default state.
1138: */
1.190 nicm 1139: static void
1.18 nicm 1140: server_client_reset_state(struct client *c)
1.1 nicm 1141: {
1.18 nicm 1142: struct window *w = c->session->curw->window;
1.209 nicm 1143: struct window_pane *wp = w->active, *loop;
1.18 nicm 1144: struct screen *s = wp->screen;
1.163 nicm 1145: struct options *oo = c->session->options;
1.66 nicm 1146: int status, mode, o;
1.60 nicm 1147:
1.186 nicm 1148: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.86 nicm 1149: return;
1150:
1.199 nicm 1151: tty_region_off(&c->tty);
1152: tty_margin_off(&c->tty);
1.1 nicm 1153:
1154: status = options_get_number(oo, "status");
1155: if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
1156: tty_cursor(&c->tty, 0, 0);
1.66 nicm 1157: else {
1.126 nicm 1158: o = status && options_get_number(oo, "status-position") == 0;
1.66 nicm 1159: tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
1160: }
1.1 nicm 1161:
1.50 nicm 1162: /*
1.131 nicm 1163: * Set mouse mode if requested. To support dragging, always use button
1164: * mode.
1.57 nicm 1165: */
1166: mode = s->mode;
1.209 nicm 1167: if (options_get_number(oo, "mouse")) {
1168: mode &= ~ALL_MOUSE_MODES;
1169: TAILQ_FOREACH(loop, &w->panes, entry) {
1170: if (loop->screen->mode & MODE_MOUSE_ALL)
1171: mode |= MODE_MOUSE_ALL;
1172: }
1173: if (~mode & MODE_MOUSE_ALL)
1174: mode |= MODE_MOUSE_BUTTON;
1175: }
1.215 nicm 1176:
1177: /* Clear bracketed paste mode if at the prompt. */
1178: if (c->prompt_string != NULL)
1179: mode &= ~MODE_BRACKETPASTE;
1.48 nicm 1180:
1181: /* Set the terminal mode and reset attributes. */
1.59 nicm 1182: tty_update_mode(&c->tty, mode, s);
1.1 nicm 1183: tty_reset(&c->tty);
1.17 nicm 1184: }
1185:
1186: /* Repeat time callback. */
1.190 nicm 1187: static void
1.170 nicm 1188: server_client_repeat_timer(__unused int fd, __unused short events, void *data)
1.17 nicm 1189: {
1190: struct client *c = data;
1191:
1.85 nicm 1192: if (c->flags & CLIENT_REPEAT) {
1.178 nicm 1193: server_client_set_key_table(c, NULL);
1.132 nicm 1194: c->flags &= ~CLIENT_REPEAT;
1195: server_status_client(c);
1.85 nicm 1196: }
1.192 nicm 1197: }
1198:
1199: /* Double-click callback. */
1200: static void
1201: server_client_click_timer(__unused int fd, __unused short events, void *data)
1202: {
1203: struct client *c = data;
1204:
1205: c->flags &= ~(CLIENT_DOUBLECLICK|CLIENT_TRIPLECLICK);
1.1 nicm 1206: }
1207:
1.36 nicm 1208: /* Check if client should be exited. */
1.190 nicm 1209: static void
1.36 nicm 1210: server_client_check_exit(struct client *c)
1211: {
1212: if (!(c->flags & CLIENT_EXIT))
1213: return;
1214:
1.73 nicm 1215: if (EVBUFFER_LENGTH(c->stdin_data) != 0)
1216: return;
1217: if (EVBUFFER_LENGTH(c->stdout_data) != 0)
1.36 nicm 1218: return;
1.73 nicm 1219: if (EVBUFFER_LENGTH(c->stderr_data) != 0)
1.36 nicm 1220: return;
1221:
1.162 nicm 1222: proc_send(c->peer, MSG_EXIT, -1, &c->retval, sizeof c->retval);
1.36 nicm 1223: c->flags &= ~CLIENT_EXIT;
1.38 nicm 1224: }
1225:
1.218 nicm 1226: /* Redraw timer callback. */
1227: static void
1228: server_client_redraw_timer(__unused int fd, __unused short events,
1229: __unused void* data)
1230: {
1231: log_debug("redraw timer fired");
1232: }
1233:
1.1 nicm 1234: /* Check for client redraws. */
1.190 nicm 1235: static void
1.1 nicm 1236: server_client_check_redraw(struct client *c)
1237: {
1238: struct session *s = c->session;
1.137 nicm 1239: struct tty *tty = &c->tty;
1.1 nicm 1240: struct window_pane *wp;
1.218 nicm 1241: int needed, flags, masked;
1242: struct timeval tv = { .tv_usec = 1000 };
1243: static struct event ev;
1244: size_t left;
1.1 nicm 1245:
1.86 nicm 1246: if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79 nicm 1247: return;
1.218 nicm 1248:
1249: /*
1250: * If there is outstanding data, defer the redraw until it has been
1251: * consumed. We can just add a timer to get out of the event loop and
1252: * end up back here.
1253: */
1254: needed = 0;
1255: if (c->flags & CLIENT_REDRAW)
1256: needed = 1;
1257: else {
1258: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
1259: if (wp->flags & PANE_REDRAW) {
1260: needed = 1;
1261: break;
1262: }
1263: }
1264: }
1265: if (needed) {
1266: left = EVBUFFER_LENGTH(tty->out);
1267: if (left != 0) {
1268: log_debug("%s: redraw deferred (%zu left)", c->name, left);
1269: if (evtimer_initialized(&ev) && evtimer_pending(&ev, NULL))
1270: return;
1271: log_debug("redraw timer started");
1272: evtimer_set(&ev, server_client_redraw_timer, NULL);
1273: evtimer_add(&ev, &tv);
1274:
1275: /*
1276: * We may have got here for a single pane redraw, but
1277: * force a full redraw next time in case other panes
1278: * have been updated.
1279: */
1280: c->flags |= CLIENT_REDRAW;
1281: return;
1282: }
1283: if (evtimer_initialized(&ev))
1284: evtimer_del(&ev);
1285: log_debug("%s: redraw needed", c->name);
1286: }
1.79 nicm 1287:
1.1 nicm 1288: if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
1.163 nicm 1289: if (options_get_number(s->options, "set-titles"))
1.1 nicm 1290: server_client_set_title(c);
1.189 nicm 1291: screen_redraw_update(c); /* will adjust flags */
1.1 nicm 1292: }
1293:
1.219 nicm 1294: flags = tty->flags & (TTY_BLOCK|TTY_FREEZE|TTY_NOCURSOR);
1295: tty->flags = (tty->flags & ~(TTY_BLOCK|TTY_FREEZE)) | TTY_NOCURSOR;
1.137 nicm 1296:
1.1 nicm 1297: if (c->flags & CLIENT_REDRAW) {
1.137 nicm 1298: tty_update_mode(tty, tty->mode, NULL);
1.115 nicm 1299: screen_redraw_screen(c, 1, 1, 1);
1.27 nicm 1300: c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
1.1 nicm 1301: } else {
1302: TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
1.137 nicm 1303: if (wp->flags & PANE_REDRAW) {
1304: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 1305: screen_redraw_pane(c, wp);
1.137 nicm 1306: }
1.1 nicm 1307: }
1308: }
1309:
1.185 nicm 1310: masked = c->flags & (CLIENT_BORDERS|CLIENT_STATUS);
1311: if (masked != 0)
1.137 nicm 1312: tty_update_mode(tty, tty->mode, NULL);
1.185 nicm 1313: if (masked == CLIENT_BORDERS)
1.115 nicm 1314: screen_redraw_screen(c, 0, 0, 1);
1.185 nicm 1315: else if (masked == CLIENT_STATUS)
1.115 nicm 1316: screen_redraw_screen(c, 0, 1, 0);
1.185 nicm 1317: else if (masked != 0)
1318: screen_redraw_screen(c, 0, 1, 1);
1.1 nicm 1319:
1.137 nicm 1320: tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags;
1321: tty_update_mode(tty, tty->mode, NULL);
1.1 nicm 1322:
1.153 nicm 1323: c->flags &= ~(CLIENT_REDRAW|CLIENT_BORDERS|CLIENT_STATUS|
1324: CLIENT_STATUSFORCE);
1.1 nicm 1325: }
1326:
1327: /* Set client title. */
1.190 nicm 1328: static void
1.1 nicm 1329: server_client_set_title(struct client *c)
1330: {
1.128 nicm 1331: struct session *s = c->session;
1332: const char *template;
1333: char *title;
1334: struct format_tree *ft;
1.1 nicm 1335:
1.163 nicm 1336: template = options_get_string(s->options, "set-titles-string");
1.25 nicm 1337:
1.210 nicm 1338: ft = format_create(NULL, FORMAT_NONE, 0);
1.128 nicm 1339: format_defaults(ft, c, NULL, NULL, NULL);
1340:
1341: title = format_expand_time(ft, template, time(NULL));
1.1 nicm 1342: if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77 nicm 1343: free(c->title);
1.1 nicm 1344: c->title = xstrdup(title);
1345: tty_set_title(&c->tty, c->title);
1346: }
1.77 nicm 1347: free(title);
1.128 nicm 1348:
1349: format_free(ft);
1.1 nicm 1350: }
1351:
1352: /* Dispatch message from client. */
1.190 nicm 1353: static void
1.162 nicm 1354: server_client_dispatch(struct imsg *imsg, void *arg)
1.1 nicm 1355: {
1.162 nicm 1356: struct client *c = arg;
1.73 nicm 1357: struct msg_stdin_data stdindata;
1.108 nicm 1358: const char *data;
1.162 nicm 1359: ssize_t datalen;
1.149 nicm 1360: struct session *s;
1.1 nicm 1361:
1.162 nicm 1362: if (c->flags & CLIENT_DEAD)
1363: return;
1364:
1365: if (imsg == NULL) {
1366: server_client_lost(c);
1367: return;
1368: }
1.1 nicm 1369:
1.162 nicm 1370: data = imsg->data;
1371: datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1.1 nicm 1372:
1.162 nicm 1373: switch (imsg->hdr.type) {
1374: case MSG_IDENTIFY_FLAGS:
1375: case MSG_IDENTIFY_TERM:
1376: case MSG_IDENTIFY_TTYNAME:
1377: case MSG_IDENTIFY_CWD:
1378: case MSG_IDENTIFY_STDIN:
1379: case MSG_IDENTIFY_ENVIRON:
1380: case MSG_IDENTIFY_CLIENTPID:
1381: case MSG_IDENTIFY_DONE:
1382: server_client_dispatch_identify(c, imsg);
1383: break;
1384: case MSG_COMMAND:
1385: server_client_dispatch_command(c, imsg);
1386: break;
1387: case MSG_STDIN:
1388: if (datalen != sizeof stdindata)
1389: fatalx("bad MSG_STDIN size");
1390: memcpy(&stdindata, data, sizeof stdindata);
1.36 nicm 1391:
1.162 nicm 1392: if (c->stdin_callback == NULL)
1.33 nicm 1393: break;
1.162 nicm 1394: if (stdindata.size <= 0)
1395: c->stdin_closed = 1;
1396: else {
1397: evbuffer_add(c->stdin_data, stdindata.data,
1398: stdindata.size);
1399: }
1400: c->stdin_callback(c, c->stdin_closed,
1401: c->stdin_callback_data);
1402: break;
1403: case MSG_RESIZE:
1404: if (datalen != 0)
1405: fatalx("bad MSG_RESIZE size");
1.1 nicm 1406:
1.162 nicm 1407: if (c->flags & CLIENT_CONTROL)
1.1 nicm 1408: break;
1.162 nicm 1409: if (tty_resize(&c->tty)) {
1410: recalculate_sizes();
1411: server_redraw_client(c);
1412: }
1.174 nicm 1413: if (c->session != NULL)
1.196 nicm 1414: notify_client("client-resized", c);
1.162 nicm 1415: break;
1416: case MSG_EXITING:
1417: if (datalen != 0)
1418: fatalx("bad MSG_EXITING size");
1.1 nicm 1419:
1.162 nicm 1420: c->session = NULL;
1421: tty_close(&c->tty);
1422: proc_send(c->peer, MSG_EXITED, -1, NULL, 0);
1423: break;
1424: case MSG_WAKEUP:
1425: case MSG_UNLOCK:
1426: if (datalen != 0)
1427: fatalx("bad MSG_WAKEUP size");
1.121 nicm 1428:
1.162 nicm 1429: if (!(c->flags & CLIENT_SUSPENDED))
1430: break;
1431: c->flags &= ~CLIENT_SUSPENDED;
1.10 nicm 1432:
1.162 nicm 1433: if (c->tty.fd == -1) /* exited in the meantime */
1.1 nicm 1434: break;
1.162 nicm 1435: s = c->session;
1.1 nicm 1436:
1.162 nicm 1437: if (gettimeofday(&c->activity_time, NULL) != 0)
1438: fatal("gettimeofday failed");
1439:
1440: tty_start_tty(&c->tty);
1441: server_redraw_client(c);
1442: recalculate_sizes();
1.184 nicm 1443:
1444: if (s != NULL)
1445: session_update_activity(s, &c->activity_time);
1.162 nicm 1446: break;
1447: case MSG_SHELL:
1448: if (datalen != 0)
1449: fatalx("bad MSG_SHELL size");
1.1 nicm 1450:
1.162 nicm 1451: server_client_dispatch_shell(c);
1452: break;
1.1 nicm 1453: }
1454: }
1455:
1.194 nicm 1456: /* Callback when command is done. */
1457: static enum cmd_retval
1.195 nicm 1458: server_client_command_done(struct cmdq_item *item, __unused void *data)
1.194 nicm 1459: {
1.195 nicm 1460: struct client *c = item->client;
1.194 nicm 1461:
1462: if (~c->flags & CLIENT_ATTACHED)
1463: c->flags |= CLIENT_EXIT;
1464: return (CMD_RETURN_NORMAL);
1465: }
1466:
1467: /* Show an error message. */
1468: static enum cmd_retval
1.195 nicm 1469: server_client_command_error(struct cmdq_item *item, void *data)
1.194 nicm 1470: {
1471: char *error = data;
1472:
1.195 nicm 1473: cmdq_error(item, "%s", error);
1.194 nicm 1474: free(error);
1475:
1476: return (CMD_RETURN_NORMAL);
1477: }
1478:
1.1 nicm 1479: /* Handle command message. */
1.190 nicm 1480: static void
1.162 nicm 1481: server_client_dispatch_command(struct client *c, struct imsg *imsg)
1.1 nicm 1482: {
1.108 nicm 1483: struct msg_command_data data;
1484: char *buf;
1485: size_t len;
1486: struct cmd_list *cmdlist = NULL;
1487: int argc;
1488: char **argv, *cause;
1489:
1490: if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data)
1491: fatalx("bad MSG_COMMAND size");
1492: memcpy(&data, imsg->data, sizeof data);
1493:
1.124 nicm 1494: buf = (char *)imsg->data + sizeof data;
1.108 nicm 1495: len = imsg->hdr.len - IMSG_HEADER_SIZE - sizeof data;
1496: if (len > 0 && buf[len - 1] != '\0')
1497: fatalx("bad MSG_COMMAND string");
1498:
1499: argc = data.argc;
1500: if (cmd_unpack_argv(buf, len, argc, &argv) != 0) {
1.194 nicm 1501: cause = xstrdup("command too long");
1.1 nicm 1502: goto error;
1503: }
1504:
1505: if (argc == 0) {
1506: argc = 1;
1507: argv = xcalloc(1, sizeof *argv);
1508: *argv = xstrdup("new-session");
1509: }
1510:
1.94 nicm 1511: if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) {
1.1 nicm 1512: cmd_free_argv(argc, argv);
1513: goto error;
1514: }
1515: cmd_free_argv(argc, argv);
1516:
1.194 nicm 1517: cmdq_append(c, cmdq_get_command(cmdlist, NULL, NULL, 0));
1518: cmdq_append(c, cmdq_get_callback(server_client_command_done, NULL));
1.1 nicm 1519: cmd_list_free(cmdlist);
1520: return;
1521:
1522: error:
1.194 nicm 1523: cmdq_append(c, cmdq_get_callback(server_client_command_error, cause));
1524:
1.1 nicm 1525: if (cmdlist != NULL)
1526: cmd_list_free(cmdlist);
1.88 nicm 1527:
1.36 nicm 1528: c->flags |= CLIENT_EXIT;
1.1 nicm 1529: }
1530:
1531: /* Handle identify message. */
1.190 nicm 1532: static void
1.162 nicm 1533: server_client_dispatch_identify(struct client *c, struct imsg *imsg)
1.1 nicm 1534: {
1.165 nicm 1535: const char *data, *home;
1.109 nicm 1536: size_t datalen;
1537: int flags;
1.216 nicm 1538: char *name;
1.109 nicm 1539:
1540: if (c->flags & CLIENT_IDENTIFIED)
1541: fatalx("out-of-order identify message");
1542:
1543: data = imsg->data;
1544: datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1545:
1546: switch (imsg->hdr.type) {
1547: case MSG_IDENTIFY_FLAGS:
1548: if (datalen != sizeof flags)
1549: fatalx("bad MSG_IDENTIFY_FLAGS size");
1550: memcpy(&flags, data, sizeof flags);
1551: c->flags |= flags;
1.158 nicm 1552: log_debug("client %p IDENTIFY_FLAGS %#x", c, flags);
1.109 nicm 1553: break;
1554: case MSG_IDENTIFY_TERM:
1.110 nicm 1555: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1556: fatalx("bad MSG_IDENTIFY_TERM string");
1557: c->term = xstrdup(data);
1.158 nicm 1558: log_debug("client %p IDENTIFY_TERM %s", c, data);
1.109 nicm 1559: break;
1560: case MSG_IDENTIFY_TTYNAME:
1.110 nicm 1561: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1562: fatalx("bad MSG_IDENTIFY_TTYNAME string");
1563: c->ttyname = xstrdup(data);
1.158 nicm 1564: log_debug("client %p IDENTIFY_TTYNAME %s", c, data);
1.109 nicm 1565: break;
1566: case MSG_IDENTIFY_CWD:
1.155 nicm 1567: if (datalen == 0 || data[datalen - 1] != '\0')
1568: fatalx("bad MSG_IDENTIFY_CWD string");
1.165 nicm 1569: if (access(data, X_OK) == 0)
1570: c->cwd = xstrdup(data);
1571: else if ((home = find_home()) != NULL)
1572: c->cwd = xstrdup(home);
1573: else
1574: c->cwd = xstrdup("/");
1.158 nicm 1575: log_debug("client %p IDENTIFY_CWD %s", c, data);
1.109 nicm 1576: break;
1577: case MSG_IDENTIFY_STDIN:
1578: if (datalen != 0)
1579: fatalx("bad MSG_IDENTIFY_STDIN size");
1580: c->fd = imsg->fd;
1.158 nicm 1581: log_debug("client %p IDENTIFY_STDIN %d", c, imsg->fd);
1.109 nicm 1582: break;
1583: case MSG_IDENTIFY_ENVIRON:
1.110 nicm 1584: if (datalen == 0 || data[datalen - 1] != '\0')
1.109 nicm 1585: fatalx("bad MSG_IDENTIFY_ENVIRON string");
1586: if (strchr(data, '=') != NULL)
1.164 nicm 1587: environ_put(c->environ, data);
1.158 nicm 1588: log_debug("client %p IDENTIFY_ENVIRON %s", c, data);
1.143 nicm 1589: break;
1590: case MSG_IDENTIFY_CLIENTPID:
1591: if (datalen != sizeof c->pid)
1592: fatalx("bad MSG_IDENTIFY_CLIENTPID size");
1593: memcpy(&c->pid, data, sizeof c->pid);
1.158 nicm 1594: log_debug("client %p IDENTIFY_CLIENTPID %ld", c, (long)c->pid);
1.109 nicm 1595: break;
1596: default:
1597: break;
1598: }
1599:
1600: if (imsg->hdr.type != MSG_IDENTIFY_DONE)
1601: return;
1602: c->flags |= CLIENT_IDENTIFIED;
1.75 nicm 1603:
1.216 nicm 1604: if (*c->ttyname != '\0')
1605: name = xstrdup(c->ttyname);
1606: else
1607: xasprintf(&name, "client-%ld", (long)c->pid);
1608: c->name = name;
1609: log_debug("client %p name is %s", c, c->name);
1610:
1.109 nicm 1611: if (c->flags & CLIENT_CONTROL) {
1.75 nicm 1612: c->stdin_callback = control_callback;
1.109 nicm 1613:
1.97 nicm 1614: evbuffer_free(c->stderr_data);
1615: c->stderr_data = c->stdout_data;
1.109 nicm 1616:
1617: if (c->flags & CLIENT_CONTROLCONTROL)
1.96 nicm 1618: evbuffer_add_printf(c->stdout_data, "\033P1000p");
1.162 nicm 1619: proc_send(c->peer, MSG_STDIN, -1, NULL, 0);
1.75 nicm 1620:
1621: c->tty.fd = -1;
1622:
1.109 nicm 1623: close(c->fd);
1624: c->fd = -1;
1625:
1.75 nicm 1626: return;
1627: }
1.1 nicm 1628:
1.109 nicm 1629: if (c->fd == -1)
1.104 nicm 1630: return;
1.145 nicm 1631: if (tty_init(&c->tty, c, c->fd, c->term) != 0) {
1.109 nicm 1632: close(c->fd);
1633: c->fd = -1;
1.80 nicm 1634: return;
1635: }
1.109 nicm 1636: if (c->flags & CLIENT_UTF8)
1.1 nicm 1637: c->tty.flags |= TTY_UTF8;
1.109 nicm 1638: if (c->flags & CLIENT_256COLOURS)
1.1 nicm 1639: c->tty.term_flags |= TERM_256COLOURS;
1640:
1641: tty_resize(&c->tty);
1642:
1.109 nicm 1643: if (!(c->flags & CLIENT_CONTROL))
1.86 nicm 1644: c->flags |= CLIENT_TERMINAL;
1.1 nicm 1645: }
1646:
1647: /* Handle shell message. */
1.190 nicm 1648: static void
1.162 nicm 1649: server_client_dispatch_shell(struct client *c)
1.1 nicm 1650: {
1.107 nicm 1651: const char *shell;
1.25 nicm 1652:
1.163 nicm 1653: shell = options_get_string(global_s_options, "default-shell");
1.1 nicm 1654: if (*shell == '\0' || areshell(shell))
1655: shell = _PATH_BSHELL;
1.162 nicm 1656: proc_send_s(c->peer, MSG_SHELL, shell);
1.25 nicm 1657:
1.162 nicm 1658: proc_kill_peer(c->peer);
1.169 nicm 1659: }
1660:
1661: /* Event callback to push more stdout data if any left. */
1662: static void
1.170 nicm 1663: server_client_stdout_cb(__unused int fd, __unused short events, void *arg)
1.169 nicm 1664: {
1665: struct client *c = arg;
1666:
1667: if (~c->flags & CLIENT_DEAD)
1668: server_client_push_stdout(c);
1669: server_client_unref(c);
1670: }
1671:
1672: /* Push stdout to client if possible. */
1673: void
1674: server_client_push_stdout(struct client *c)
1675: {
1676: struct msg_stdout_data data;
1677: size_t sent, left;
1678:
1679: left = EVBUFFER_LENGTH(c->stdout_data);
1680: while (left != 0) {
1681: sent = left;
1682: if (sent > sizeof data.data)
1683: sent = sizeof data.data;
1684: memcpy(data.data, EVBUFFER_DATA(c->stdout_data), sent);
1685: data.size = sent;
1686:
1687: if (proc_send(c->peer, MSG_STDOUT, -1, &data, sizeof data) != 0)
1688: break;
1689: evbuffer_drain(c->stdout_data, sent);
1690:
1691: left = EVBUFFER_LENGTH(c->stdout_data);
1692: log_debug("%s: client %p, sent %zu, left %zu", __func__, c,
1693: sent, left);
1694: }
1695: if (left != 0) {
1696: c->references++;
1697: event_once(-1, EV_TIMEOUT, server_client_stdout_cb, c, NULL);
1698: log_debug("%s: client %p, queued", __func__, c);
1699: }
1700: }
1701:
1702: /* Event callback to push more stderr data if any left. */
1703: static void
1.170 nicm 1704: server_client_stderr_cb(__unused int fd, __unused short events, void *arg)
1.169 nicm 1705: {
1706: struct client *c = arg;
1707:
1708: if (~c->flags & CLIENT_DEAD)
1709: server_client_push_stderr(c);
1710: server_client_unref(c);
1711: }
1712:
1713: /* Push stderr to client if possible. */
1714: void
1715: server_client_push_stderr(struct client *c)
1716: {
1717: struct msg_stderr_data data;
1718: size_t sent, left;
1719:
1720: if (c->stderr_data == c->stdout_data) {
1721: server_client_push_stdout(c);
1722: return;
1723: }
1724:
1725: left = EVBUFFER_LENGTH(c->stderr_data);
1726: while (left != 0) {
1727: sent = left;
1728: if (sent > sizeof data.data)
1729: sent = sizeof data.data;
1730: memcpy(data.data, EVBUFFER_DATA(c->stderr_data), sent);
1731: data.size = sent;
1732:
1733: if (proc_send(c->peer, MSG_STDERR, -1, &data, sizeof data) != 0)
1734: break;
1735: evbuffer_drain(c->stderr_data, sent);
1736:
1737: left = EVBUFFER_LENGTH(c->stderr_data);
1738: log_debug("%s: client %p, sent %zu, left %zu", __func__, c,
1739: sent, left);
1740: }
1741: if (left != 0) {
1742: c->references++;
1743: event_once(-1, EV_TIMEOUT, server_client_stderr_cb, c, NULL);
1744: log_debug("%s: client %p, queued", __func__, c);
1.212 nicm 1745: }
1746: }
1747:
1748: /* Add to client message log. */
1749: void
1750: server_client_add_message(struct client *c, const char *fmt, ...)
1751: {
1752: struct message_entry *msg, *msg1;
1753: char *s;
1754: va_list ap;
1755: u_int limit;
1756:
1757: va_start(ap, fmt);
1758: xvasprintf(&s, fmt, ap);
1759: va_end(ap);
1760:
1.216 nicm 1761: log_debug("message %s (client %p)", s, c);
1.212 nicm 1762:
1763: msg = xcalloc(1, sizeof *msg);
1764: msg->msg_time = time(NULL);
1765: msg->msg_num = c->message_next++;
1766: msg->msg = s;
1767: TAILQ_INSERT_TAIL(&c->message_log, msg, entry);
1768:
1769: limit = options_get_number(global_options, "message-limit");
1770: TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
1771: if (msg->msg_num + limit >= c->message_next)
1772: break;
1773: free(msg->msg);
1774: TAILQ_REMOVE(&c->message_log, msg, entry);
1775: free(msg);
1.169 nicm 1776: }
1.213 nicm 1777: }
1778:
1779: /* Get client working directory. */
1780: const char *
1781: server_client_get_cwd(struct client *c)
1782: {
1783: struct session *s;
1784:
1785: if (c != NULL && c->session == NULL && c->cwd != NULL)
1786: return (c->cwd);
1787: if (c != NULL && (s = c->session) != NULL && s->cwd != NULL)
1788: return (s->cwd);
1789: return (".");
1790: }
1791:
1792: /* Resolve an absolute path or relative to client working directory. */
1793: char *
1794: server_client_get_path(struct client *c, const char *file)
1795: {
1796: char *path, resolved[PATH_MAX];
1797:
1798: if (*file == '/')
1799: path = xstrdup(file);
1800: else
1801: xasprintf(&path, "%s/%s", server_client_get_cwd(c), file);
1802: if (realpath(path, resolved) == NULL)
1803: return (path);
1804: free(path);
1805: return (xstrdup(resolved));
1.1 nicm 1806: }
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