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Annotation of src/usr.bin/tmux/server-client.c, Revision 1.356

1.356   ! nicm        1: /* $OpenBSD: server-client.c,v 1.355 2020/06/05 07:33:57 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 *);
1.344     nicm       36: static void    server_client_check_pane_focus(struct window_pane *);
                     37: static void    server_client_check_pane_resize(struct window_pane *);
1.345     nicm       38: static void    server_client_check_pane_buffer(struct window_pane *);
1.344     nicm       39: static void    server_client_check_window_resize(struct window *);
1.276     nicm       40: static key_code        server_client_check_mouse(struct client *, struct key_event *);
1.190     nicm       41: static void    server_client_repeat_timer(int, short, void *);
1.192     nicm       42: static void    server_client_click_timer(int, short, void *);
1.190     nicm       43: static void    server_client_check_exit(struct client *);
                     44: static void    server_client_check_redraw(struct client *);
                     45: static void    server_client_set_title(struct client *);
                     46: static void    server_client_reset_state(struct client *);
                     47: static int     server_client_assume_paste(struct session *);
                     48:
                     49: static void    server_client_dispatch(struct imsg *, void *);
                     50: static void    server_client_dispatch_command(struct client *, struct imsg *);
                     51: static void    server_client_dispatch_identify(struct client *, struct imsg *);
                     52: static void    server_client_dispatch_shell(struct client *);
1.300     nicm       53: static void    server_client_dispatch_write_ready(struct client *,
                     54:                    struct imsg *);
                     55: static void    server_client_dispatch_read_data(struct client *,
                     56:                    struct imsg *);
                     57: static void    server_client_dispatch_read_done(struct client *,
                     58:                    struct imsg *);
1.233     nicm       59:
1.352     nicm       60: /* Maximum data allowed to be held for a pane for a control client. */
                     61: #define SERVER_CLIENT_PANE_LIMIT 16777216
                     62:
1.341     nicm       63: /* Compare client windows. */
                     64: static int
                     65: server_client_window_cmp(struct client_window *cw1,
                     66:     struct client_window *cw2)
                     67: {
                     68:        if (cw1->window < cw2->window)
                     69:                return (-1);
                     70:        if (cw1->window > cw2->window)
                     71:                return (1);
                     72:        return (0);
                     73: }
                     74: RB_GENERATE(client_windows, client_window, entry, server_client_window_cmp);
                     75:
1.233     nicm       76: /* Number of attached clients. */
                     77: u_int
                     78: server_client_how_many(void)
                     79: {
                     80:        struct client   *c;
                     81:        u_int            n;
                     82:
                     83:        n = 0;
                     84:        TAILQ_FOREACH(c, &clients, entry) {
1.352     nicm       85:                if (c->session != NULL && (~c->flags & CLIENT_UNATTACHEDFLAGS))
1.233     nicm       86:                        n++;
                     87:        }
                     88:        return (n);
                     89: }
1.140     nicm       90:
1.281     nicm       91: /* Overlay timer callback. */
1.214     nicm       92: static void
1.281     nicm       93: server_client_overlay_timer(__unused int fd, __unused short events, void *data)
1.214     nicm       94: {
1.281     nicm       95:        server_client_clear_overlay(data);
1.214     nicm       96: }
                     97:
1.281     nicm       98: /* Set an overlay on client. */
1.214     nicm       99: void
1.309     nicm      100: server_client_set_overlay(struct client *c, u_int delay,
                    101:     overlay_check_cb checkcb, overlay_mode_cb modecb,
                    102:     overlay_draw_cb drawcb, overlay_key_cb keycb, overlay_free_cb freecb,
                    103:     void *data)
1.214     nicm      104: {
                    105:        struct timeval  tv;
                    106:
1.282     nicm      107:        if (c->overlay_draw != NULL)
                    108:                server_client_clear_overlay(c);
                    109:
1.214     nicm      110:        tv.tv_sec = delay / 1000;
                    111:        tv.tv_usec = (delay % 1000) * 1000L;
                    112:
1.281     nicm      113:        if (event_initialized(&c->overlay_timer))
                    114:                evtimer_del(&c->overlay_timer);
                    115:        evtimer_set(&c->overlay_timer, server_client_overlay_timer, c);
1.242     nicm      116:        if (delay != 0)
1.281     nicm      117:                evtimer_add(&c->overlay_timer, &tv);
                    118:
1.309     nicm      119:        c->overlay_check = checkcb;
                    120:        c->overlay_mode = modecb;
1.281     nicm      121:        c->overlay_draw = drawcb;
                    122:        c->overlay_key = keycb;
                    123:        c->overlay_free = freecb;
                    124:        c->overlay_data = data;
1.214     nicm      125:
1.309     nicm      126:        c->tty.flags |= TTY_FREEZE;
                    127:        if (c->overlay_mode == NULL)
                    128:                c->tty.flags |= TTY_NOCURSOR;
1.214     nicm      129:        server_redraw_client(c);
                    130: }
                    131:
1.281     nicm      132: /* Clear overlay mode on client. */
1.309     nicm      133: void
1.281     nicm      134: server_client_clear_overlay(struct client *c)
1.214     nicm      135: {
1.281     nicm      136:        if (c->overlay_draw == NULL)
1.214     nicm      137:                return;
                    138:
1.281     nicm      139:        if (event_initialized(&c->overlay_timer))
                    140:                evtimer_del(&c->overlay_timer);
                    141:
                    142:        if (c->overlay_free != NULL)
                    143:                c->overlay_free(c);
                    144:
1.309     nicm      145:        c->overlay_check = NULL;
                    146:        c->overlay_mode = NULL;
1.281     nicm      147:        c->overlay_draw = NULL;
                    148:        c->overlay_key = NULL;
1.309     nicm      149:        c->overlay_free = NULL;
                    150:        c->overlay_data = NULL;
1.214     nicm      151:
                    152:        c->tty.flags &= ~(TTY_FREEZE|TTY_NOCURSOR);
                    153:        server_redraw_client(c);
                    154: }
                    155:
1.140     nicm      156: /* Check if this client is inside this server. */
                    157: int
                    158: server_client_check_nested(struct client *c)
                    159: {
                    160:        struct environ_entry    *envent;
                    161:        struct window_pane      *wp;
                    162:
1.164     nicm      163:        envent = environ_find(c->environ, "TMUX");
1.140     nicm      164:        if (envent == NULL || *envent->value == '\0')
                    165:                return (0);
                    166:
                    167:        RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
1.216     nicm      168:                if (strcmp(wp->tty, c->ttyname) == 0)
1.140     nicm      169:                        return (1);
                    170:        }
                    171:        return (0);
                    172: }
1.1       nicm      173:
1.132     nicm      174: /* Set client key table. */
                    175: void
1.178     nicm      176: server_client_set_key_table(struct client *c, const char *name)
1.132     nicm      177: {
1.178     nicm      178:        if (name == NULL)
                    179:                name = server_client_get_key_table(c);
                    180:
1.132     nicm      181:        key_bindings_unref_table(c->keytable);
                    182:        c->keytable = key_bindings_get_table(name, 1);
                    183:        c->keytable->references++;
                    184: }
                    185:
1.178     nicm      186: /* Get default key table. */
                    187: const char *
                    188: server_client_get_key_table(struct client *c)
                    189: {
                    190:        struct session  *s = c->session;
                    191:        const char      *name;
                    192:
                    193:        if (s == NULL)
                    194:                return ("root");
                    195:
                    196:        name = options_get_string(s->options, "key-table");
                    197:        if (*name == '\0')
                    198:                return ("root");
                    199:        return (name);
                    200: }
                    201:
1.223     nicm      202: /* Is this table the default key table? */
                    203: static int
                    204: server_client_is_default_key_table(struct client *c, struct key_table *table)
1.191     nicm      205: {
1.223     nicm      206:        return (strcmp(table->name, server_client_get_key_table(c)) == 0);
1.191     nicm      207: }
                    208:
1.1       nicm      209: /* Create a new client. */
1.246     nicm      210: struct client *
1.1       nicm      211: server_client_create(int fd)
                    212: {
                    213:        struct client   *c;
                    214:
1.49      nicm      215:        setblocking(fd, 0);
1.1       nicm      216:
                    217:        c = xcalloc(1, sizeof *c);
1.141     nicm      218:        c->references = 1;
1.162     nicm      219:        c->peer = proc_add_peer(server_proc, fd, server_client_dispatch, c);
1.25      nicm      220:
1.10      nicm      221:        if (gettimeofday(&c->creation_time, NULL) != 0)
1.1       nicm      222:                fatal("gettimeofday failed");
1.11      nicm      223:        memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
1.111     nicm      224:
1.164     nicm      225:        c->environ = environ_create();
1.1       nicm      226:
1.146     nicm      227:        c->fd = -1;
1.351     nicm      228:        c->out_fd = -1;
1.145     nicm      229:
1.316     nicm      230:        c->queue = cmdq_new();
1.341     nicm      231:        RB_INIT(&c->windows);
1.345     nicm      232:        RB_INIT(&c->files);
1.94      nicm      233:
1.1       nicm      234:        c->tty.sx = 80;
                    235:        c->tty.sy = 24;
                    236:
1.271     nicm      237:        status_init(c);
1.93      nicm      238:        c->flags |= CLIENT_FOCUSED;
                    239:
1.132     nicm      240:        c->keytable = key_bindings_get_table("root", 1);
                    241:        c->keytable->references++;
                    242:
1.17      nicm      243:        evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
1.192     nicm      244:        evtimer_set(&c->click_timer, server_client_click_timer, c);
1.17      nicm      245:
1.135     nicm      246:        TAILQ_INSERT_TAIL(&clients, c, entry);
1.157     nicm      247:        log_debug("new client %p", c);
1.246     nicm      248:        return (c);
1.72      nicm      249: }
                    250:
                    251: /* Open client terminal if needed. */
                    252: int
1.119     nicm      253: server_client_open(struct client *c, char **cause)
1.72      nicm      254: {
1.339     nicm      255:        const char      *ttynam = _PATH_TTY;
                    256:
1.75      nicm      257:        if (c->flags & CLIENT_CONTROL)
                    258:                return (0);
1.120     nicm      259:
1.339     nicm      260:        if (strcmp(c->ttyname, ttynam) == 0||
                    261:            ((isatty(STDIN_FILENO) &&
                    262:            (ttynam = ttyname(STDIN_FILENO)) != NULL &&
                    263:            strcmp(c->ttyname, ttynam) == 0) ||
                    264:            (isatty(STDOUT_FILENO) &&
                    265:            (ttynam = ttyname(STDOUT_FILENO)) != NULL &&
                    266:            strcmp(c->ttyname, ttynam) == 0) ||
                    267:            (isatty(STDERR_FILENO) &&
                    268:            (ttynam = ttyname(STDERR_FILENO)) != NULL &&
                    269:            strcmp(c->ttyname, ttynam) == 0))) {
                    270:                xasprintf(cause, "can't use %s", c->ttyname);
1.120     nicm      271:                return (-1);
                    272:        }
1.75      nicm      273:
1.72      nicm      274:        if (!(c->flags & CLIENT_TERMINAL)) {
1.116     nicm      275:                *cause = xstrdup("not a terminal");
1.72      nicm      276:                return (-1);
                    277:        }
                    278:
1.119     nicm      279:        if (tty_open(&c->tty, cause) != 0)
1.72      nicm      280:                return (-1);
                    281:
                    282:        return (0);
1.1       nicm      283: }
                    284:
                    285: /* Lost a client. */
                    286: void
                    287: server_client_lost(struct client *c)
                    288: {
1.340     nicm      289:        struct client_file      *cf, *cf1;
1.341     nicm      290:        struct client_window    *cw, *cw1;
1.1       nicm      291:
1.141     nicm      292:        c->flags |= CLIENT_DEAD;
                    293:
1.281     nicm      294:        server_client_clear_overlay(c);
1.141     nicm      295:        status_prompt_clear(c);
                    296:        status_message_clear(c);
                    297:
1.340     nicm      298:        RB_FOREACH_SAFE(cf, client_files, &c->files, cf1) {
1.300     nicm      299:                cf->error = EINTR;
                    300:                file_fire_done(cf);
                    301:        }
1.341     nicm      302:        RB_FOREACH_SAFE(cw, client_windows, &c->windows, cw1) {
                    303:                RB_REMOVE(client_windows, &c->windows, cw);
                    304:                free(cw);
                    305:        }
1.141     nicm      306:
1.135     nicm      307:        TAILQ_REMOVE(&clients, c, entry);
1.157     nicm      308:        log_debug("lost client %p", c);
1.1       nicm      309:
1.349     nicm      310:        if (c->flags & CLIENT_CONTROL)
                    311:                control_stop(c);
1.1       nicm      312:        if (c->flags & CLIENT_TERMINAL)
                    313:                tty_free(&c->tty);
1.109     nicm      314:        free(c->ttyname);
1.333     nicm      315:
1.329     nicm      316:        free(c->term_name);
1.333     nicm      317:        free(c->term_type);
1.1       nicm      318:
1.270     nicm      319:        status_free(c);
1.1       nicm      320:
1.77      nicm      321:        free(c->title);
1.165     nicm      322:        free((void *)c->cwd);
1.1       nicm      323:
1.17      nicm      324:        evtimer_del(&c->repeat_timer);
1.192     nicm      325:        evtimer_del(&c->click_timer);
1.17      nicm      326:
1.132     nicm      327:        key_bindings_unref_table(c->keytable);
                    328:
1.77      nicm      329:        free(c->message_string);
1.116     nicm      330:        if (event_initialized(&c->message_timer))
1.69      nicm      331:                evtimer_del(&c->message_timer);
1.1       nicm      332:
1.259     nicm      333:        free(c->prompt_saved);
1.77      nicm      334:        free(c->prompt_string);
                    335:        free(c->prompt_buffer);
1.61      nicm      336:
1.228     nicm      337:        format_lost_client(c);
1.164     nicm      338:        environ_free(c->environ);
1.1       nicm      339:
1.162     nicm      340:        proc_remove_peer(c->peer);
                    341:        c->peer = NULL;
1.13      nicm      342:
1.351     nicm      343:        if (c->out_fd != -1)
                    344:                close(c->out_fd);
1.348     nicm      345:        if (c->fd != -1) {
                    346:                close(c->fd);
                    347:                c->fd = -1;
                    348:        }
1.142     nicm      349:        server_client_unref(c);
1.71      nicm      350:
                    351:        server_add_accept(0); /* may be more file descriptors now */
1.1       nicm      352:
                    353:        recalculate_sizes();
1.41      nicm      354:        server_check_unattached();
1.19      nicm      355:        server_update_socket();
1.141     nicm      356: }
                    357:
                    358: /* Remove reference from a client. */
                    359: void
1.142     nicm      360: server_client_unref(struct client *c)
1.141     nicm      361: {
1.157     nicm      362:        log_debug("unref client %p (%d references)", c, c->references);
1.141     nicm      363:
                    364:        c->references--;
                    365:        if (c->references == 0)
                    366:                event_once(-1, EV_TIMEOUT, server_client_free, c, NULL);
                    367: }
                    368:
                    369: /* Free dead client. */
1.190     nicm      370: static void
1.170     nicm      371: server_client_free(__unused int fd, __unused short events, void *arg)
1.141     nicm      372: {
                    373:        struct client   *c = arg;
                    374:
1.157     nicm      375:        log_debug("free client %p (%d references)", c, c->references);
1.141     nicm      376:
1.316     nicm      377:        cmdq_free(c->queue);
1.194     nicm      378:
1.216     nicm      379:        if (c->references == 0) {
                    380:                free((void *)c->name);
1.141     nicm      381:                free(c);
1.216     nicm      382:        }
1.9       nicm      383: }
                    384:
1.220     nicm      385: /* Suspend a client. */
                    386: void
                    387: server_client_suspend(struct client *c)
                    388: {
1.232     nicm      389:        struct session  *s = c->session;
1.220     nicm      390:
1.352     nicm      391:        if (s == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS))
1.220     nicm      392:                return;
                    393:
                    394:        tty_stop_tty(&c->tty);
                    395:        c->flags |= CLIENT_SUSPENDED;
                    396:        proc_send(c->peer, MSG_SUSPEND, -1, NULL, 0);
                    397: }
                    398:
1.174     nicm      399: /* Detach a client. */
                    400: void
                    401: server_client_detach(struct client *c, enum msgtype msgtype)
                    402: {
1.232     nicm      403:        struct session  *s = c->session;
1.174     nicm      404:
1.352     nicm      405:        if (s == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS))
1.174     nicm      406:                return;
                    407:
1.352     nicm      408:        c->flags |= CLIENT_EXIT;
                    409:
                    410:        c->exit_type = CLIENT_EXIT_DETACH;
                    411:        c->exit_msgtype = msgtype;
                    412:        c->exit_session = xstrdup(s->name);
1.207     nicm      413: }
                    414:
1.208     nicm      415: /* Execute command to replace a client. */
1.207     nicm      416: void
                    417: server_client_exec(struct client *c, const char *cmd)
                    418: {
                    419:        struct session  *s = c->session;
1.208     nicm      420:        char            *msg;
                    421:        const char      *shell;
1.207     nicm      422:        size_t           cmdsize, shellsize;
                    423:
                    424:        if (*cmd == '\0')
                    425:                return;
                    426:        cmdsize = strlen(cmd) + 1;
                    427:
                    428:        if (s != NULL)
                    429:                shell = options_get_string(s->options, "default-shell");
                    430:        else
                    431:                shell = options_get_string(global_s_options, "default-shell");
1.308     nicm      432:        if (!checkshell(shell))
                    433:                shell = _PATH_BSHELL;
1.207     nicm      434:        shellsize = strlen(shell) + 1;
                    435:
                    436:        msg = xmalloc(cmdsize + shellsize);
                    437:        memcpy(msg, cmd, cmdsize);
                    438:        memcpy(msg + cmdsize, shell, shellsize);
                    439:
                    440:        proc_send(c->peer, MSG_EXEC, -1, msg, cmdsize + shellsize);
                    441:        free(msg);
1.174     nicm      442: }
                    443:
1.66      nicm      444: /* Check for mouse keys. */
1.190     nicm      445: static key_code
1.276     nicm      446: server_client_check_mouse(struct client *c, struct key_event *event)
1.66      nicm      447: {
1.276     nicm      448:        struct mouse_event      *m = &event->m;
1.192     nicm      449:        struct session          *s = c->session;
1.272     nicm      450:        struct winlink          *wl;
1.192     nicm      451:        struct window_pane      *wp;
1.261     nicm      452:        u_int                    x, y, b, sx, sy, px, py;
1.307     nicm      453:        int                      ignore = 0;
1.192     nicm      454:        key_code                 key;
                    455:        struct timeval           tv;
1.272     nicm      456:        struct style_range      *sr;
1.283     nicm      457:        enum { NOTYPE,
                    458:               MOVE,
                    459:               DOWN,
                    460:               UP,
                    461:               DRAG,
                    462:               WHEEL,
1.311     nicm      463:               SECOND,
1.283     nicm      464:               DOUBLE,
                    465:               TRIPLE } type = NOTYPE;
1.276     nicm      466:        enum { NOWHERE,
                    467:               PANE,
                    468:               STATUS,
                    469:               STATUS_LEFT,
                    470:               STATUS_RIGHT,
                    471:               STATUS_DEFAULT,
1.283     nicm      472:               BORDER } where = NOWHERE;
1.131     nicm      473:
1.261     nicm      474:        log_debug("%s mouse %02x at %u,%u (last %u,%u) (%d)", c->name, m->b,
                    475:            m->x, m->y, m->lx, m->ly, c->tty.mouse_drag_flag);
1.131     nicm      476:
                    477:        /* What type of event is this? */
1.306     nicm      478:        if (event->key == KEYC_DOUBLECLICK) {
                    479:                type = DOUBLE;
                    480:                x = m->x, y = m->y, b = m->b;
1.307     nicm      481:                ignore = 1;
1.306     nicm      482:                log_debug("double-click at %u,%u", x, y);
                    483:        } else if ((m->sgr_type != ' ' &&
1.209     nicm      484:            MOUSE_DRAG(m->sgr_b) &&
                    485:            MOUSE_BUTTONS(m->sgr_b) == 3) ||
                    486:            (m->sgr_type == ' ' &&
                    487:            MOUSE_DRAG(m->b) &&
                    488:            MOUSE_BUTTONS(m->b) == 3 &&
                    489:            MOUSE_BUTTONS(m->lb) == 3)) {
                    490:                type = MOVE;
                    491:                x = m->x, y = m->y, b = 0;
                    492:                log_debug("move at %u,%u", x, y);
                    493:        } else if (MOUSE_DRAG(m->b)) {
1.131     nicm      494:                type = DRAG;
                    495:                if (c->tty.mouse_drag_flag) {
                    496:                        x = m->x, y = m->y, b = m->b;
1.278     nicm      497:                        if (x == m->lx && y == m->ly)
                    498:                                return (KEYC_UNKNOWN);
1.131     nicm      499:                        log_debug("drag update at %u,%u", x, y);
                    500:                } else {
1.277     nicm      501:                        x = m->lx, y = m->ly, b = m->lb;
1.131     nicm      502:                        log_debug("drag start at %u,%u", x, y);
                    503:                }
                    504:        } else if (MOUSE_WHEEL(m->b)) {
                    505:                type = WHEEL;
                    506:                x = m->x, y = m->y, b = m->b;
                    507:                log_debug("wheel at %u,%u", x, y);
1.200     nicm      508:        } else if (MOUSE_RELEASE(m->b)) {
1.131     nicm      509:                type = UP;
                    510:                x = m->x, y = m->y, b = m->lb;
                    511:                log_debug("up at %u,%u", x, y);
                    512:        } else {
1.192     nicm      513:                if (c->flags & CLIENT_DOUBLECLICK) {
                    514:                        evtimer_del(&c->click_timer);
                    515:                        c->flags &= ~CLIENT_DOUBLECLICK;
                    516:                        if (m->b == c->click_button) {
1.311     nicm      517:                                type = SECOND;
                    518:                                x = m->x, y = m->y, b = m->b;
                    519:                                log_debug("second-click at %u,%u", x, y);
1.306     nicm      520:                                c->flags |= CLIENT_TRIPLECLICK;
1.192     nicm      521:                        }
                    522:                } else if (c->flags & CLIENT_TRIPLECLICK) {
                    523:                        evtimer_del(&c->click_timer);
                    524:                        c->flags &= ~CLIENT_TRIPLECLICK;
                    525:                        if (m->b == c->click_button) {
                    526:                                type = TRIPLE;
                    527:                                x = m->x, y = m->y, b = m->b;
                    528:                                log_debug("triple-click at %u,%u", x, y);
                    529:                                goto have_event;
                    530:                        }
1.311     nicm      531:                } else {
                    532:                        type = DOWN;
                    533:                        x = m->x, y = m->y, b = m->b;
                    534:                        log_debug("down at %u,%u", x, y);
1.307     nicm      535:                        c->flags |= CLIENT_DOUBLECLICK;
1.311     nicm      536:                }
1.192     nicm      537:
                    538:                if (KEYC_CLICK_TIMEOUT != 0) {
1.306     nicm      539:                        memcpy(&c->click_event, m, sizeof c->click_event);
1.192     nicm      540:                        c->click_button = m->b;
                    541:
1.312     nicm      542:                        log_debug("click timer started");
1.192     nicm      543:                        tv.tv_sec = KEYC_CLICK_TIMEOUT / 1000;
                    544:                        tv.tv_usec = (KEYC_CLICK_TIMEOUT % 1000) * 1000L;
                    545:                        evtimer_del(&c->click_timer);
                    546:                        evtimer_add(&c->click_timer, &tv);
                    547:                }
1.131     nicm      548:        }
1.192     nicm      549:
                    550: have_event:
1.131     nicm      551:        if (type == NOTYPE)
1.177     nicm      552:                return (KEYC_UNKNOWN);
1.131     nicm      553:
1.258     nicm      554:        /* Save the session. */
1.131     nicm      555:        m->s = s->id;
1.258     nicm      556:        m->w = -1;
1.307     nicm      557:        m->ignore = ignore;
1.131     nicm      558:
                    559:        /* Is this on the status line? */
                    560:        m->statusat = status_at_line(c);
1.292     nicm      561:        m->statuslines = status_line_size(c);
1.272     nicm      562:        if (m->statusat != -1 &&
                    563:            y >= (u_int)m->statusat &&
1.292     nicm      564:            y < m->statusat + m->statuslines) {
1.272     nicm      565:                sr = status_get_range(c, x, y - m->statusat);
1.274     nicm      566:                if (sr == NULL) {
                    567:                        where = STATUS_DEFAULT;
                    568:                } else {
                    569:                        switch (sr->type) {
                    570:                        case STYLE_RANGE_NONE:
1.273     nicm      571:                                return (KEYC_UNKNOWN);
1.274     nicm      572:                        case STYLE_RANGE_LEFT:
                    573:                                where = STATUS_LEFT;
                    574:                                break;
                    575:                        case STYLE_RANGE_RIGHT:
                    576:                                where = STATUS_RIGHT;
                    577:                                break;
                    578:                        case STYLE_RANGE_WINDOW:
1.298     nicm      579:                                wl = winlink_find_by_index(&s->windows,
                    580:                                    sr->argument);
1.274     nicm      581:                                if (wl == NULL)
                    582:                                        return (KEYC_UNKNOWN);
                    583:                                m->w = wl->window->id;
1.273     nicm      584:
1.274     nicm      585:                                where = STATUS;
                    586:                                break;
                    587:                        }
1.258     nicm      588:                }
                    589:        }
1.131     nicm      590:
                    591:        /* Not on status line. Adjust position and check for border or pane. */
                    592:        if (where == NOWHERE) {
1.261     nicm      593:                px = x;
1.292     nicm      594:                if (m->statusat == 0 && y >= m->statuslines)
                    595:                        py = y - m->statuslines;
1.131     nicm      596:                else if (m->statusat > 0 && y >= (u_int)m->statusat)
1.261     nicm      597:                        py = m->statusat - 1;
                    598:                else
                    599:                        py = y;
                    600:
                    601:                tty_window_offset(&c->tty, &m->ox, &m->oy, &sx, &sy);
                    602:                log_debug("mouse window @%u at %u,%u (%ux%u)",
                    603:                    s->curw->window->id, m->ox, m->oy, sx, sy);
                    604:                if (px > sx || py > sy)
                    605:                        return (KEYC_UNKNOWN);
                    606:                px = px + m->ox;
                    607:                py = py + m->oy;
1.131     nicm      608:
1.260     nicm      609:                /* Try the pane borders if not zoomed. */
                    610:                if (~s->curw->window->flags & WINDOW_ZOOMED) {
                    611:                        TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
1.261     nicm      612:                                if ((wp->xoff + wp->sx == px &&
                    613:                                    wp->yoff <= 1 + py &&
                    614:                                    wp->yoff + wp->sy >= py) ||
                    615:                                    (wp->yoff + wp->sy == py &&
                    616:                                    wp->xoff <= 1 + px &&
                    617:                                    wp->xoff + wp->sx >= px))
1.260     nicm      618:                                        break;
                    619:                        }
                    620:                        if (wp != NULL)
                    621:                                where = BORDER;
1.131     nicm      622:                }
1.260     nicm      623:
                    624:                /* Otherwise try inside the pane. */
                    625:                if (where == NOWHERE) {
1.261     nicm      626:                        wp = window_get_active_at(s->curw->window, px, py);
1.260     nicm      627:                        if (wp != NULL)
1.131     nicm      628:                                where = PANE;
1.315     nicm      629:                        else
                    630:                                return (KEYC_UNKNOWN);
1.131     nicm      631:                }
1.260     nicm      632:                if (where == PANE)
                    633:                        log_debug("mouse %u,%u on pane %%%u", x, y, wp->id);
                    634:                else if (where == BORDER)
                    635:                        log_debug("mouse on pane %%%u border", wp->id);
1.131     nicm      636:                m->wp = wp->id;
                    637:                m->w = wp->window->id;
                    638:        } else
                    639:                m->wp = -1;
                    640:
                    641:        /* Stop dragging if needed. */
1.200     nicm      642:        if (type != DRAG && type != WHEEL && c->tty.mouse_drag_flag) {
1.131     nicm      643:                if (c->tty.mouse_drag_release != NULL)
                    644:                        c->tty.mouse_drag_release(c, m);
                    645:
                    646:                c->tty.mouse_drag_update = NULL;
                    647:                c->tty.mouse_drag_release = NULL;
                    648:
1.182     nicm      649:                /*
1.183     nicm      650:                 * End a mouse drag by passing a MouseDragEnd key corresponding
                    651:                 * to the button that started the drag.
1.182     nicm      652:                 */
                    653:                switch (c->tty.mouse_drag_flag) {
                    654:                case 1:
                    655:                        if (where == PANE)
1.183     nicm      656:                                key = KEYC_MOUSEDRAGEND1_PANE;
1.182     nicm      657:                        if (where == STATUS)
1.183     nicm      658:                                key = KEYC_MOUSEDRAGEND1_STATUS;
1.258     nicm      659:                        if (where == STATUS_LEFT)
                    660:                                key = KEYC_MOUSEDRAGEND1_STATUS_LEFT;
                    661:                        if (where == STATUS_RIGHT)
                    662:                                key = KEYC_MOUSEDRAGEND1_STATUS_RIGHT;
1.274     nicm      663:                        if (where == STATUS_DEFAULT)
                    664:                                key = KEYC_MOUSEDRAGEND1_STATUS_DEFAULT;
1.182     nicm      665:                        if (where == BORDER)
1.183     nicm      666:                                key = KEYC_MOUSEDRAGEND1_BORDER;
1.182     nicm      667:                        break;
                    668:                case 2:
                    669:                        if (where == PANE)
1.183     nicm      670:                                key = KEYC_MOUSEDRAGEND2_PANE;
1.182     nicm      671:                        if (where == STATUS)
1.183     nicm      672:                                key = KEYC_MOUSEDRAGEND2_STATUS;
1.258     nicm      673:                        if (where == STATUS_LEFT)
                    674:                                key = KEYC_MOUSEDRAGEND2_STATUS_LEFT;
                    675:                        if (where == STATUS_RIGHT)
                    676:                                key = KEYC_MOUSEDRAGEND2_STATUS_RIGHT;
1.274     nicm      677:                        if (where == STATUS_DEFAULT)
                    678:                                key = KEYC_MOUSEDRAGEND2_STATUS_DEFAULT;
1.182     nicm      679:                        if (where == BORDER)
1.183     nicm      680:                                key = KEYC_MOUSEDRAGEND2_BORDER;
1.182     nicm      681:                        break;
                    682:                case 3:
                    683:                        if (where == PANE)
1.183     nicm      684:                                key = KEYC_MOUSEDRAGEND3_PANE;
1.182     nicm      685:                        if (where == STATUS)
1.183     nicm      686:                                key = KEYC_MOUSEDRAGEND3_STATUS;
1.258     nicm      687:                        if (where == STATUS_LEFT)
                    688:                                key = KEYC_MOUSEDRAGEND3_STATUS_LEFT;
                    689:                        if (where == STATUS_RIGHT)
                    690:                                key = KEYC_MOUSEDRAGEND3_STATUS_RIGHT;
1.274     nicm      691:                        if (where == STATUS_DEFAULT)
                    692:                                key = KEYC_MOUSEDRAGEND3_STATUS_DEFAULT;
1.182     nicm      693:                        if (where == BORDER)
1.183     nicm      694:                                key = KEYC_MOUSEDRAGEND3_BORDER;
1.182     nicm      695:                        break;
                    696:                default:
                    697:                        key = KEYC_MOUSE;
                    698:                        break;
                    699:                }
1.131     nicm      700:                c->tty.mouse_drag_flag = 0;
1.305     nicm      701:                goto out;
1.131     nicm      702:        }
                    703:
                    704:        /* Convert to a key binding. */
1.177     nicm      705:        key = KEYC_UNKNOWN;
1.131     nicm      706:        switch (type) {
                    707:        case NOTYPE:
                    708:                break;
1.209     nicm      709:        case MOVE:
                    710:                if (where == PANE)
                    711:                        key = KEYC_MOUSEMOVE_PANE;
                    712:                if (where == STATUS)
                    713:                        key = KEYC_MOUSEMOVE_STATUS;
1.274     nicm      714:                if (where == STATUS_LEFT)
                    715:                        key = KEYC_MOUSEMOVE_STATUS_LEFT;
                    716:                if (where == STATUS_RIGHT)
                    717:                        key = KEYC_MOUSEMOVE_STATUS_RIGHT;
                    718:                if (where == STATUS_DEFAULT)
                    719:                        key = KEYC_MOUSEMOVE_STATUS_DEFAULT;
1.209     nicm      720:                if (where == BORDER)
                    721:                        key = KEYC_MOUSEMOVE_BORDER;
                    722:                break;
1.131     nicm      723:        case DRAG:
1.204     nicm      724:                if (c->tty.mouse_drag_update != NULL)
                    725:                        key = KEYC_DRAGGING;
                    726:                else {
1.131     nicm      727:                        switch (MOUSE_BUTTONS(b)) {
                    728:                        case 0:
                    729:                                if (where == PANE)
                    730:                                        key = KEYC_MOUSEDRAG1_PANE;
                    731:                                if (where == STATUS)
                    732:                                        key = KEYC_MOUSEDRAG1_STATUS;
1.258     nicm      733:                                if (where == STATUS_LEFT)
                    734:                                        key = KEYC_MOUSEDRAG1_STATUS_LEFT;
                    735:                                if (where == STATUS_RIGHT)
                    736:                                        key = KEYC_MOUSEDRAG1_STATUS_RIGHT;
1.274     nicm      737:                                if (where == STATUS_DEFAULT)
                    738:                                        key = KEYC_MOUSEDRAG1_STATUS_DEFAULT;
1.131     nicm      739:                                if (where == BORDER)
                    740:                                        key = KEYC_MOUSEDRAG1_BORDER;
                    741:                                break;
                    742:                        case 1:
                    743:                                if (where == PANE)
                    744:                                        key = KEYC_MOUSEDRAG2_PANE;
                    745:                                if (where == STATUS)
                    746:                                        key = KEYC_MOUSEDRAG2_STATUS;
1.258     nicm      747:                                if (where == STATUS_LEFT)
                    748:                                        key = KEYC_MOUSEDRAG2_STATUS_LEFT;
                    749:                                if (where == STATUS_RIGHT)
                    750:                                        key = KEYC_MOUSEDRAG2_STATUS_RIGHT;
1.274     nicm      751:                                if (where == STATUS_DEFAULT)
                    752:                                        key = KEYC_MOUSEDRAG2_STATUS_DEFAULT;
1.131     nicm      753:                                if (where == BORDER)
                    754:                                        key = KEYC_MOUSEDRAG2_BORDER;
                    755:                                break;
                    756:                        case 2:
                    757:                                if (where == PANE)
                    758:                                        key = KEYC_MOUSEDRAG3_PANE;
                    759:                                if (where == STATUS)
                    760:                                        key = KEYC_MOUSEDRAG3_STATUS;
1.258     nicm      761:                                if (where == STATUS_LEFT)
                    762:                                        key = KEYC_MOUSEDRAG3_STATUS_LEFT;
                    763:                                if (where == STATUS_RIGHT)
                    764:                                        key = KEYC_MOUSEDRAG3_STATUS_RIGHT;
1.274     nicm      765:                                if (where == STATUS_DEFAULT)
                    766:                                        key = KEYC_MOUSEDRAG3_STATUS_DEFAULT;
1.131     nicm      767:                                if (where == BORDER)
                    768:                                        key = KEYC_MOUSEDRAG3_BORDER;
                    769:                                break;
                    770:                        }
                    771:                }
1.66      nicm      772:
1.182     nicm      773:                /*
                    774:                 * Begin a drag by setting the flag to a non-zero value that
                    775:                 * corresponds to the mouse button in use.
                    776:                 */
                    777:                c->tty.mouse_drag_flag = MOUSE_BUTTONS(b) + 1;
1.131     nicm      778:                break;
                    779:        case WHEEL:
                    780:                if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) {
                    781:                        if (where == PANE)
                    782:                                key = KEYC_WHEELUP_PANE;
                    783:                        if (where == STATUS)
                    784:                                key = KEYC_WHEELUP_STATUS;
1.258     nicm      785:                        if (where == STATUS_LEFT)
                    786:                                key = KEYC_WHEELUP_STATUS_LEFT;
                    787:                        if (where == STATUS_RIGHT)
                    788:                                key = KEYC_WHEELUP_STATUS_RIGHT;
1.274     nicm      789:                        if (where == STATUS_DEFAULT)
                    790:                                key = KEYC_WHEELUP_STATUS_DEFAULT;
1.131     nicm      791:                        if (where == BORDER)
                    792:                                key = KEYC_WHEELUP_BORDER;
                    793:                } else {
                    794:                        if (where == PANE)
                    795:                                key = KEYC_WHEELDOWN_PANE;
                    796:                        if (where == STATUS)
                    797:                                key = KEYC_WHEELDOWN_STATUS;
1.274     nicm      798:                        if (where == STATUS_LEFT)
                    799:                                key = KEYC_WHEELDOWN_STATUS_LEFT;
                    800:                        if (where == STATUS_RIGHT)
                    801:                                key = KEYC_WHEELDOWN_STATUS_RIGHT;
                    802:                        if (where == STATUS_DEFAULT)
                    803:                                key = KEYC_WHEELDOWN_STATUS_DEFAULT;
1.131     nicm      804:                        if (where == BORDER)
                    805:                                key = KEYC_WHEELDOWN_BORDER;
                    806:                }
                    807:                break;
                    808:        case UP:
                    809:                switch (MOUSE_BUTTONS(b)) {
                    810:                case 0:
                    811:                        if (where == PANE)
                    812:                                key = KEYC_MOUSEUP1_PANE;
                    813:                        if (where == STATUS)
                    814:                                key = KEYC_MOUSEUP1_STATUS;
1.258     nicm      815:                        if (where == STATUS_LEFT)
                    816:                                key = KEYC_MOUSEUP1_STATUS_LEFT;
                    817:                        if (where == STATUS_RIGHT)
                    818:                                key = KEYC_MOUSEUP1_STATUS_RIGHT;
1.274     nicm      819:                        if (where == STATUS_DEFAULT)
                    820:                                key = KEYC_MOUSEUP1_STATUS_DEFAULT;
1.131     nicm      821:                        if (where == BORDER)
                    822:                                key = KEYC_MOUSEUP1_BORDER;
                    823:                        break;
                    824:                case 1:
                    825:                        if (where == PANE)
                    826:                                key = KEYC_MOUSEUP2_PANE;
                    827:                        if (where == STATUS)
                    828:                                key = KEYC_MOUSEUP2_STATUS;
1.258     nicm      829:                        if (where == STATUS_LEFT)
                    830:                                key = KEYC_MOUSEUP2_STATUS_LEFT;
                    831:                        if (where == STATUS_RIGHT)
                    832:                                key = KEYC_MOUSEUP2_STATUS_RIGHT;
1.274     nicm      833:                        if (where == STATUS_DEFAULT)
                    834:                                key = KEYC_MOUSEUP2_STATUS_DEFAULT;
1.131     nicm      835:                        if (where == BORDER)
                    836:                                key = KEYC_MOUSEUP2_BORDER;
                    837:                        break;
                    838:                case 2:
                    839:                        if (where == PANE)
                    840:                                key = KEYC_MOUSEUP3_PANE;
                    841:                        if (where == STATUS)
                    842:                                key = KEYC_MOUSEUP3_STATUS;
1.258     nicm      843:                        if (where == STATUS_LEFT)
                    844:                                key = KEYC_MOUSEUP3_STATUS_LEFT;
                    845:                        if (where == STATUS_RIGHT)
                    846:                                key = KEYC_MOUSEUP3_STATUS_RIGHT;
1.274     nicm      847:                        if (where == STATUS_DEFAULT)
                    848:                                key = KEYC_MOUSEUP3_STATUS_DEFAULT;
1.131     nicm      849:                        if (where == BORDER)
                    850:                                key = KEYC_MOUSEUP3_BORDER;
                    851:                        break;
                    852:                }
                    853:                break;
                    854:        case DOWN:
                    855:                switch (MOUSE_BUTTONS(b)) {
                    856:                case 0:
                    857:                        if (where == PANE)
                    858:                                key = KEYC_MOUSEDOWN1_PANE;
                    859:                        if (where == STATUS)
                    860:                                key = KEYC_MOUSEDOWN1_STATUS;
1.258     nicm      861:                        if (where == STATUS_LEFT)
                    862:                                key = KEYC_MOUSEDOWN1_STATUS_LEFT;
                    863:                        if (where == STATUS_RIGHT)
                    864:                                key = KEYC_MOUSEDOWN1_STATUS_RIGHT;
1.274     nicm      865:                        if (where == STATUS_DEFAULT)
                    866:                                key = KEYC_MOUSEDOWN1_STATUS_DEFAULT;
1.131     nicm      867:                        if (where == BORDER)
                    868:                                key = KEYC_MOUSEDOWN1_BORDER;
                    869:                        break;
                    870:                case 1:
                    871:                        if (where == PANE)
                    872:                                key = KEYC_MOUSEDOWN2_PANE;
                    873:                        if (where == STATUS)
                    874:                                key = KEYC_MOUSEDOWN2_STATUS;
1.258     nicm      875:                        if (where == STATUS_LEFT)
                    876:                                key = KEYC_MOUSEDOWN2_STATUS_LEFT;
                    877:                        if (where == STATUS_RIGHT)
                    878:                                key = KEYC_MOUSEDOWN2_STATUS_RIGHT;
1.274     nicm      879:                        if (where == STATUS_DEFAULT)
                    880:                                key = KEYC_MOUSEDOWN2_STATUS_DEFAULT;
1.131     nicm      881:                        if (where == BORDER)
                    882:                                key = KEYC_MOUSEDOWN2_BORDER;
                    883:                        break;
                    884:                case 2:
                    885:                        if (where == PANE)
                    886:                                key = KEYC_MOUSEDOWN3_PANE;
                    887:                        if (where == STATUS)
                    888:                                key = KEYC_MOUSEDOWN3_STATUS;
1.258     nicm      889:                        if (where == STATUS_LEFT)
                    890:                                key = KEYC_MOUSEDOWN3_STATUS_LEFT;
                    891:                        if (where == STATUS_RIGHT)
                    892:                                key = KEYC_MOUSEDOWN3_STATUS_RIGHT;
1.274     nicm      893:                        if (where == STATUS_DEFAULT)
                    894:                                key = KEYC_MOUSEDOWN3_STATUS_DEFAULT;
1.131     nicm      895:                        if (where == BORDER)
                    896:                                key = KEYC_MOUSEDOWN3_BORDER;
1.311     nicm      897:                        break;
                    898:                }
                    899:                break;
                    900:        case SECOND:
                    901:                switch (MOUSE_BUTTONS(b)) {
                    902:                case 0:
                    903:                        if (where == PANE)
                    904:                                key = KEYC_SECONDCLICK1_PANE;
                    905:                        if (where == STATUS)
                    906:                                key = KEYC_SECONDCLICK1_STATUS;
                    907:                        if (where == STATUS_LEFT)
                    908:                                key = KEYC_SECONDCLICK1_STATUS_LEFT;
                    909:                        if (where == STATUS_RIGHT)
                    910:                                key = KEYC_SECONDCLICK1_STATUS_RIGHT;
                    911:                        if (where == STATUS_DEFAULT)
                    912:                                key = KEYC_SECONDCLICK1_STATUS_DEFAULT;
                    913:                        if (where == BORDER)
                    914:                                key = KEYC_SECONDCLICK1_BORDER;
                    915:                        break;
                    916:                case 1:
                    917:                        if (where == PANE)
                    918:                                key = KEYC_SECONDCLICK2_PANE;
                    919:                        if (where == STATUS)
                    920:                                key = KEYC_SECONDCLICK2_STATUS;
                    921:                        if (where == STATUS_LEFT)
                    922:                                key = KEYC_SECONDCLICK2_STATUS_LEFT;
                    923:                        if (where == STATUS_RIGHT)
                    924:                                key = KEYC_SECONDCLICK2_STATUS_RIGHT;
                    925:                        if (where == STATUS_DEFAULT)
                    926:                                key = KEYC_SECONDCLICK2_STATUS_DEFAULT;
                    927:                        if (where == BORDER)
                    928:                                key = KEYC_SECONDCLICK2_BORDER;
                    929:                        break;
                    930:                case 2:
                    931:                        if (where == PANE)
                    932:                                key = KEYC_SECONDCLICK3_PANE;
                    933:                        if (where == STATUS)
                    934:                                key = KEYC_SECONDCLICK3_STATUS;
                    935:                        if (where == STATUS_LEFT)
                    936:                                key = KEYC_SECONDCLICK3_STATUS_LEFT;
                    937:                        if (where == STATUS_RIGHT)
                    938:                                key = KEYC_SECONDCLICK3_STATUS_RIGHT;
                    939:                        if (where == STATUS_DEFAULT)
                    940:                                key = KEYC_SECONDCLICK3_STATUS_DEFAULT;
                    941:                        if (where == BORDER)
                    942:                                key = KEYC_SECONDCLICK3_BORDER;
1.131     nicm      943:                        break;
1.66      nicm      944:                }
1.131     nicm      945:                break;
1.192     nicm      946:        case DOUBLE:
                    947:                switch (MOUSE_BUTTONS(b)) {
                    948:                case 0:
                    949:                        if (where == PANE)
                    950:                                key = KEYC_DOUBLECLICK1_PANE;
                    951:                        if (where == STATUS)
                    952:                                key = KEYC_DOUBLECLICK1_STATUS;
1.258     nicm      953:                        if (where == STATUS_LEFT)
                    954:                                key = KEYC_DOUBLECLICK1_STATUS_LEFT;
                    955:                        if (where == STATUS_RIGHT)
                    956:                                key = KEYC_DOUBLECLICK1_STATUS_RIGHT;
1.274     nicm      957:                        if (where == STATUS_DEFAULT)
                    958:                                key = KEYC_DOUBLECLICK1_STATUS_DEFAULT;
1.192     nicm      959:                        if (where == BORDER)
                    960:                                key = KEYC_DOUBLECLICK1_BORDER;
                    961:                        break;
                    962:                case 1:
                    963:                        if (where == PANE)
                    964:                                key = KEYC_DOUBLECLICK2_PANE;
                    965:                        if (where == STATUS)
                    966:                                key = KEYC_DOUBLECLICK2_STATUS;
1.258     nicm      967:                        if (where == STATUS_LEFT)
                    968:                                key = KEYC_DOUBLECLICK2_STATUS_LEFT;
                    969:                        if (where == STATUS_RIGHT)
                    970:                                key = KEYC_DOUBLECLICK2_STATUS_RIGHT;
1.274     nicm      971:                        if (where == STATUS_DEFAULT)
                    972:                                key = KEYC_DOUBLECLICK2_STATUS_DEFAULT;
1.192     nicm      973:                        if (where == BORDER)
                    974:                                key = KEYC_DOUBLECLICK2_BORDER;
                    975:                        break;
                    976:                case 2:
                    977:                        if (where == PANE)
                    978:                                key = KEYC_DOUBLECLICK3_PANE;
                    979:                        if (where == STATUS)
                    980:                                key = KEYC_DOUBLECLICK3_STATUS;
1.258     nicm      981:                        if (where == STATUS_LEFT)
                    982:                                key = KEYC_DOUBLECLICK3_STATUS_LEFT;
                    983:                        if (where == STATUS_RIGHT)
                    984:                                key = KEYC_DOUBLECLICK3_STATUS_RIGHT;
1.274     nicm      985:                        if (where == STATUS_DEFAULT)
                    986:                                key = KEYC_DOUBLECLICK3_STATUS_DEFAULT;
1.192     nicm      987:                        if (where == BORDER)
                    988:                                key = KEYC_DOUBLECLICK3_BORDER;
                    989:                        break;
                    990:                }
                    991:                break;
                    992:        case TRIPLE:
                    993:                switch (MOUSE_BUTTONS(b)) {
                    994:                case 0:
                    995:                        if (where == PANE)
                    996:                                key = KEYC_TRIPLECLICK1_PANE;
                    997:                        if (where == STATUS)
                    998:                                key = KEYC_TRIPLECLICK1_STATUS;
1.258     nicm      999:                        if (where == STATUS_LEFT)
                   1000:                                key = KEYC_TRIPLECLICK1_STATUS_LEFT;
                   1001:                        if (where == STATUS_RIGHT)
                   1002:                                key = KEYC_TRIPLECLICK1_STATUS_RIGHT;
1.274     nicm     1003:                        if (where == STATUS_DEFAULT)
                   1004:                                key = KEYC_TRIPLECLICK1_STATUS_DEFAULT;
1.192     nicm     1005:                        if (where == BORDER)
                   1006:                                key = KEYC_TRIPLECLICK1_BORDER;
                   1007:                        break;
                   1008:                case 1:
                   1009:                        if (where == PANE)
                   1010:                                key = KEYC_TRIPLECLICK2_PANE;
                   1011:                        if (where == STATUS)
                   1012:                                key = KEYC_TRIPLECLICK2_STATUS;
1.258     nicm     1013:                        if (where == STATUS_LEFT)
                   1014:                                key = KEYC_TRIPLECLICK2_STATUS_LEFT;
                   1015:                        if (where == STATUS_RIGHT)
                   1016:                                key = KEYC_TRIPLECLICK2_STATUS_RIGHT;
1.274     nicm     1017:                        if (where == STATUS_DEFAULT)
                   1018:                                key = KEYC_TRIPLECLICK2_STATUS_DEFAULT;
1.192     nicm     1019:                        if (where == BORDER)
                   1020:                                key = KEYC_TRIPLECLICK2_BORDER;
                   1021:                        break;
                   1022:                case 2:
                   1023:                        if (where == PANE)
                   1024:                                key = KEYC_TRIPLECLICK3_PANE;
                   1025:                        if (where == STATUS)
                   1026:                                key = KEYC_TRIPLECLICK3_STATUS;
1.258     nicm     1027:                        if (where == STATUS_LEFT)
                   1028:                                key = KEYC_TRIPLECLICK3_STATUS_LEFT;
                   1029:                        if (where == STATUS_RIGHT)
                   1030:                                key = KEYC_TRIPLECLICK3_STATUS_RIGHT;
1.274     nicm     1031:                        if (where == STATUS_DEFAULT)
                   1032:                                key = KEYC_TRIPLECLICK3_STATUS_DEFAULT;
1.192     nicm     1033:                        if (where == BORDER)
                   1034:                                key = KEYC_TRIPLECLICK3_BORDER;
                   1035:                        break;
                   1036:                }
                   1037:                break;
1.66      nicm     1038:        }
1.177     nicm     1039:        if (key == KEYC_UNKNOWN)
                   1040:                return (KEYC_UNKNOWN);
1.66      nicm     1041:
1.305     nicm     1042: out:
1.131     nicm     1043:        /* Apply modifiers if any. */
                   1044:        if (b & MOUSE_MASK_META)
1.342     nicm     1045:                key |= KEYC_META;
1.131     nicm     1046:        if (b & MOUSE_MASK_CTRL)
                   1047:                key |= KEYC_CTRL;
                   1048:        if (b & MOUSE_MASK_SHIFT)
                   1049:                key |= KEYC_SHIFT;
1.66      nicm     1050:
1.305     nicm     1051:        if (log_get_level() != 0)
1.343     nicm     1052:                log_debug("mouse key is %s", key_string_lookup_key (key, 1));
1.131     nicm     1053:        return (key);
1.66      nicm     1054: }
                   1055:
1.82      nicm     1056: /* Is this fast enough to probably be a paste? */
1.190     nicm     1057: static int
1.82      nicm     1058: server_client_assume_paste(struct session *s)
                   1059: {
                   1060:        struct timeval  tv;
1.84      nicm     1061:        int             t;
1.82      nicm     1062:
1.163     nicm     1063:        if ((t = options_get_number(s->options, "assume-paste-time")) == 0)
1.83      nicm     1064:                return (0);
1.82      nicm     1065:
                   1066:        timersub(&s->activity_time, &s->last_activity_time, &tv);
1.171     nicm     1067:        if (tv.tv_sec == 0 && tv.tv_usec < t * 1000) {
                   1068:                log_debug("session %s pasting (flag %d)", s->name,
                   1069:                    !!(s->flags & SESSION_PASTING));
                   1070:                if (s->flags & SESSION_PASTING)
                   1071:                        return (1);
                   1072:                s->flags |= SESSION_PASTING;
                   1073:                return (0);
                   1074:        }
                   1075:        log_debug("session %s not pasting", s->name);
                   1076:        s->flags &= ~SESSION_PASTING;
1.83      nicm     1077:        return (0);
1.82      nicm     1078: }
                   1079:
1.295     nicm     1080: /* Has the latest client changed? */
                   1081: static void
                   1082: server_client_update_latest(struct client *c)
                   1083: {
                   1084:        struct window   *w;
                   1085:
                   1086:        if (c->session == NULL)
                   1087:                return;
                   1088:        w = c->session->curw->window;
                   1089:
                   1090:        if (w->latest == c)
                   1091:                return;
                   1092:        w->latest = c;
                   1093:
                   1094:        if (options_get_number(w->options, "window-size") == WINDOW_SIZE_LATEST)
1.355     nicm     1095:                recalculate_size(w, 0);
1.295     nicm     1096: }
                   1097:
1.276     nicm     1098: /*
                   1099:  * Handle data key input from client. This owns and can modify the key event it
                   1100:  * is given and is responsible for freeing it.
                   1101:  */
1.280     nicm     1102: static enum cmd_retval
1.276     nicm     1103: server_client_key_callback(struct cmdq_item *item, void *data)
1.18      nicm     1104: {
1.316     nicm     1105:        struct client                   *c = cmdq_get_client(item);
1.276     nicm     1106:        struct key_event                *event = data;
                   1107:        key_code                         key = event->key;
                   1108:        struct mouse_event              *m = &event->m;
1.267     nicm     1109:        struct session                  *s = c->session;
                   1110:        struct winlink                  *wl;
                   1111:        struct window_pane              *wp;
                   1112:        struct window_mode_entry        *wme;
                   1113:        struct timeval                   tv;
                   1114:        struct key_table                *table, *first;
                   1115:        struct key_binding              *bd;
                   1116:        int                              xtimeout, flags;
                   1117:        struct cmd_find_state            fs;
                   1118:        key_code                         key0;
1.18      nicm     1119:
                   1120:        /* Check the client is good to accept input. */
1.303     nicm     1121:        if (s == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS))
1.276     nicm     1122:                goto out;
1.264     nicm     1123:        wl = s->curw;
1.18      nicm     1124:
                   1125:        /* Update the activity timer. */
                   1126:        if (gettimeofday(&c->activity_time, NULL) != 0)
                   1127:                fatal("gettimeofday failed");
1.149     nicm     1128:        session_update_activity(s, &c->activity_time);
1.18      nicm     1129:
                   1130:        /* Check for mouse keys. */
1.204     nicm     1131:        m->valid = 0;
1.306     nicm     1132:        if (key == KEYC_MOUSE || key == KEYC_DOUBLECLICK) {
1.30      nicm     1133:                if (c->flags & CLIENT_READONLY)
1.276     nicm     1134:                        goto out;
                   1135:                key = server_client_check_mouse(c, event);
1.177     nicm     1136:                if (key == KEYC_UNKNOWN)
1.276     nicm     1137:                        goto out;
1.131     nicm     1138:
                   1139:                m->valid = 1;
                   1140:                m->key = key;
1.203     nicm     1141:
                   1142:                /*
1.204     nicm     1143:                 * Mouse drag is in progress, so fire the callback (now that
                   1144:                 * the mouse event is valid).
1.203     nicm     1145:                 */
1.305     nicm     1146:                if ((key & KEYC_MASK_KEY) == KEYC_DRAGGING) {
1.204     nicm     1147:                        c->tty.mouse_drag_update(c, m);
1.276     nicm     1148:                        goto out;
1.204     nicm     1149:                }
1.338     nicm     1150:                event->key = key;
1.276     nicm     1151:        }
1.18      nicm     1152:
1.202     nicm     1153:        /* Find affected pane. */
1.243     nicm     1154:        if (!KEYC_IS_MOUSE(key) || cmd_find_from_mouse(&fs, m, 0) != 0)
1.341     nicm     1155:                cmd_find_from_client(&fs, c, 0);
1.227     nicm     1156:        wp = fs.wp;
1.202     nicm     1157:
                   1158:        /* Forward mouse keys if disabled. */
1.206     nicm     1159:        if (KEYC_IS_MOUSE(key) && !options_get_number(s->options, "mouse"))
1.253     nicm     1160:                goto forward_key;
1.202     nicm     1161:
1.132     nicm     1162:        /* Treat everything as a regular key when pasting is detected. */
1.161     nicm     1163:        if (!KEYC_IS_MOUSE(key) && server_client_assume_paste(s))
1.253     nicm     1164:                goto forward_key;
1.18      nicm     1165:
1.191     nicm     1166:        /*
                   1167:         * Work out the current key table. If the pane is in a mode, use
                   1168:         * the mode table instead of the default key table.
                   1169:         */
1.223     nicm     1170:        if (server_client_is_default_key_table(c, c->keytable) &&
                   1171:            wp != NULL &&
1.267     nicm     1172:            (wme = TAILQ_FIRST(&wp->modes)) != NULL &&
                   1173:            wme->mode->key_table != NULL)
                   1174:                table = key_bindings_get_table(wme->mode->key_table(wme), 1);
1.223     nicm     1175:        else
1.191     nicm     1176:                table = c->keytable;
1.223     nicm     1177:        first = table;
1.191     nicm     1178:
1.253     nicm     1179: table_changed:
1.205     nicm     1180:        /*
                   1181:         * The prefix always takes precedence and forces a switch to the prefix
                   1182:         * table, unless we are already there.
                   1183:         */
1.343     nicm     1184:        key0 = (key & (KEYC_MASK_KEY|KEYC_MASK_MODIFIERS));
1.239     nicm     1185:        if ((key0 == (key_code)options_get_number(s->options, "prefix") ||
                   1186:            key0 == (key_code)options_get_number(s->options, "prefix2")) &&
1.205     nicm     1187:            strcmp(table->name, "prefix") != 0) {
                   1188:                server_client_set_key_table(c, "prefix");
                   1189:                server_status_client(c);
1.276     nicm     1190:                goto out;
1.205     nicm     1191:        }
1.238     nicm     1192:        flags = c->flags;
1.205     nicm     1193:
1.262     nicm     1194: try_again:
1.223     nicm     1195:        /* Log key table. */
                   1196:        if (wp == NULL)
                   1197:                log_debug("key table %s (no pane)", table->name);
                   1198:        else
                   1199:                log_debug("key table %s (pane %%%u)", table->name, wp->id);
1.225     nicm     1200:        if (c->flags & CLIENT_REPEAT)
                   1201:                log_debug("currently repeating");
1.223     nicm     1202:
1.132     nicm     1203:        /* Try to see if there is a key binding in the current table. */
1.254     nicm     1204:        bd = key_bindings_get(table, key0);
1.132     nicm     1205:        if (bd != NULL) {
                   1206:                /*
                   1207:                 * Key was matched in this table. If currently repeating but a
                   1208:                 * non-repeating binding was found, stop repeating and try
                   1209:                 * again in the root table.
                   1210:                 */
1.222     nicm     1211:                if ((c->flags & CLIENT_REPEAT) &&
                   1212:                    (~bd->flags & KEY_BINDING_REPEAT)) {
1.262     nicm     1213:                        log_debug("found in key table %s (not repeating)",
                   1214:                            table->name);
1.178     nicm     1215:                        server_client_set_key_table(c, NULL);
1.262     nicm     1216:                        first = table = c->keytable;
1.132     nicm     1217:                        c->flags &= ~CLIENT_REPEAT;
1.85      nicm     1218:                        server_status_client(c);
1.253     nicm     1219:                        goto table_changed;
1.18      nicm     1220:                }
1.223     nicm     1221:                log_debug("found in key table %s", table->name);
1.82      nicm     1222:
1.132     nicm     1223:                /*
                   1224:                 * Take a reference to this table to make sure the key binding
                   1225:                 * doesn't disappear.
                   1226:                 */
                   1227:                table->references++;
                   1228:
                   1229:                /*
                   1230:                 * If this is a repeating key, start the timer. Otherwise reset
                   1231:                 * the client back to the root table.
                   1232:                 */
1.163     nicm     1233:                xtimeout = options_get_number(s->options, "repeat-time");
1.222     nicm     1234:                if (xtimeout != 0 && (bd->flags & KEY_BINDING_REPEAT)) {
1.132     nicm     1235:                        c->flags |= CLIENT_REPEAT;
                   1236:
                   1237:                        tv.tv_sec = xtimeout / 1000;
                   1238:                        tv.tv_usec = (xtimeout % 1000) * 1000L;
                   1239:                        evtimer_del(&c->repeat_timer);
                   1240:                        evtimer_add(&c->repeat_timer, &tv);
                   1241:                } else {
1.18      nicm     1242:                        c->flags &= ~CLIENT_REPEAT;
1.178     nicm     1243:                        server_client_set_key_table(c, NULL);
1.18      nicm     1244:                }
1.132     nicm     1245:                server_status_client(c);
                   1246:
1.227     nicm     1247:                /* Execute the key binding. */
1.317     nicm     1248:                key_bindings_dispatch(bd, item, c, event, &fs);
1.132     nicm     1249:                key_bindings_unref_table(table);
1.276     nicm     1250:                goto out;
1.18      nicm     1251:        }
                   1252:
1.132     nicm     1253:        /*
1.253     nicm     1254:         * No match, try the ANY key.
                   1255:         */
                   1256:        if (key0 != KEYC_ANY) {
                   1257:                key0 = KEYC_ANY;
                   1258:                goto try_again;
                   1259:        }
                   1260:
                   1261:        /*
1.223     nicm     1262:         * No match in this table. If not in the root table or if repeating,
                   1263:         * switch the client back to the root table and try again.
1.132     nicm     1264:         */
1.223     nicm     1265:        log_debug("not found in key table %s", table->name);
                   1266:        if (!server_client_is_default_key_table(c, table) ||
                   1267:            (c->flags & CLIENT_REPEAT)) {
1.262     nicm     1268:                log_debug("trying in root table");
1.178     nicm     1269:                server_client_set_key_table(c, NULL);
1.262     nicm     1270:                table = c->keytable;
                   1271:                if (c->flags & CLIENT_REPEAT)
                   1272:                        first = table;
1.18      nicm     1273:                c->flags &= ~CLIENT_REPEAT;
1.132     nicm     1274:                server_status_client(c);
1.253     nicm     1275:                goto table_changed;
1.18      nicm     1276:        }
                   1277:
1.223     nicm     1278:        /*
                   1279:         * No match in the root table either. If this wasn't the first table
                   1280:         * tried, don't pass the key to the pane.
                   1281:         */
1.238     nicm     1282:        if (first != table && (~flags & CLIENT_REPEAT)) {
1.178     nicm     1283:                server_client_set_key_table(c, NULL);
1.132     nicm     1284:                server_status_client(c);
1.276     nicm     1285:                goto out;
1.161     nicm     1286:        }
                   1287:
1.253     nicm     1288: forward_key:
1.161     nicm     1289:        if (c->flags & CLIENT_READONLY)
1.276     nicm     1290:                goto out;
1.161     nicm     1291:        if (wp != NULL)
1.264     nicm     1292:                window_pane_key(wp, c, s, wl, key, m);
1.276     nicm     1293:
                   1294: out:
1.347     nicm     1295:        if (s != NULL && key != KEYC_FOCUS_OUT)
1.295     nicm     1296:                server_client_update_latest(c);
1.276     nicm     1297:        free(event);
                   1298:        return (CMD_RETURN_NORMAL);
1.280     nicm     1299: }
                   1300:
                   1301: /* Handle a key event. */
                   1302: int
                   1303: server_client_handle_key(struct client *c, struct key_event *event)
                   1304: {
                   1305:        struct session          *s = c->session;
                   1306:        struct cmdq_item        *item;
                   1307:
                   1308:        /* Check the client is good to accept input. */
1.303     nicm     1309:        if (s == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS))
1.280     nicm     1310:                return (0);
                   1311:
                   1312:        /*
1.291     nicm     1313:         * Key presses in overlay mode and the command prompt are a special
                   1314:         * case. The queue might be blocked so they need to be processed
                   1315:         * immediately rather than queued.
1.280     nicm     1316:         */
1.291     nicm     1317:        if (~c->flags & CLIENT_READONLY) {
                   1318:                status_message_clear(c);
                   1319:                if (c->overlay_key != NULL) {
                   1320:                        switch (c->overlay_key(c, event)) {
                   1321:                        case 0:
                   1322:                                return (0);
                   1323:                        case 1:
                   1324:                                server_client_clear_overlay(c);
                   1325:                                return (0);
                   1326:                        }
1.290     nicm     1327:                }
1.293     nicm     1328:                server_client_clear_overlay(c);
1.335     nicm     1329:                if (c->prompt_string != NULL) {
                   1330:                        if (status_prompt_key(c, event->key) == 0)
                   1331:                                return (0);
                   1332:                }
1.280     nicm     1333:        }
                   1334:
                   1335:        /*
                   1336:         * Add the key to the queue so it happens after any commands queued by
                   1337:         * previous keys.
                   1338:         */
                   1339:        item = cmdq_get_callback(server_client_key_callback, event);
                   1340:        cmdq_append(c, item);
                   1341:        return (1);
1.18      nicm     1342: }
                   1343:
1.2       nicm     1344: /* Client functions that need to happen every loop. */
                   1345: void
                   1346: server_client_loop(void)
                   1347: {
                   1348:        struct client           *c;
                   1349:        struct window           *w;
                   1350:        struct window_pane      *wp;
1.344     nicm     1351:        int                      focus;
                   1352:
                   1353:        /* Check for window resize. This is done before redrawing. */
                   1354:        RB_FOREACH(w, windows, &windows)
                   1355:                server_client_check_window_resize(w);
1.2       nicm     1356:
1.344     nicm     1357:        /* Check clients. */
1.135     nicm     1358:        TAILQ_FOREACH(c, &clients, entry) {
1.36      nicm     1359:                server_client_check_exit(c);
                   1360:                if (c->session != NULL) {
                   1361:                        server_client_check_redraw(c);
                   1362:                        server_client_reset_state(c);
                   1363:                }
1.2       nicm     1364:        }
                   1365:
                   1366:        /*
                   1367:         * Any windows will have been redrawn as part of clients, so clear
1.92      nicm     1368:         * their flags now. Also check pane focus and resize.
1.2       nicm     1369:         */
1.197     nicm     1370:        focus = options_get_number(global_options, "focus-events");
1.134     nicm     1371:        RB_FOREACH(w, windows, &windows) {
1.91      nicm     1372:                TAILQ_FOREACH(wp, &w->panes, entry) {
1.289     nicm     1373:                        if (wp->fd != -1) {
1.197     nicm     1374:                                if (focus)
1.344     nicm     1375:                                        server_client_check_pane_focus(wp);
                   1376:                                server_client_check_pane_resize(wp);
1.345     nicm     1377:                                server_client_check_pane_buffer(wp);
1.101     nicm     1378:                        }
1.326     nicm     1379:                        wp->flags &= ~PANE_REDRAW;
1.91      nicm     1380:                }
1.150     nicm     1381:                check_window_name(w);
1.2       nicm     1382:        }
1.92      nicm     1383: }
                   1384:
1.344     nicm     1385: /* Check if window needs to be resized. */
                   1386: static void
                   1387: server_client_check_window_resize(struct window *w)
                   1388: {
                   1389:        struct winlink  *wl;
                   1390:
                   1391:        if (~w->flags & WINDOW_RESIZE)
                   1392:                return;
                   1393:
                   1394:        TAILQ_FOREACH(wl, &w->winlinks, wentry) {
                   1395:                if (wl->session->attached != 0 && wl->session->curw == wl)
                   1396:                        break;
                   1397:        }
                   1398:        if (wl == NULL)
                   1399:                return;
                   1400:
                   1401:        log_debug("%s: resizing window @%u", __func__, w->id);
                   1402:        resize_window(w, w->new_sx, w->new_sy, w->new_xpixel, w->new_ypixel);
                   1403: }
                   1404:
1.356   ! nicm     1405: /* Resize timer event. */
1.188     nicm     1406: static void
1.356   ! nicm     1407: server_client_resize_timer(__unused int fd, __unused short events, void *data)
1.92      nicm     1408: {
1.356   ! nicm     1409:        struct window_pane      *wp = data;
1.92      nicm     1410:
1.356   ! nicm     1411:        log_debug("%s: %%%u resize timer expired", __func__, wp->id);
        !          1412:        evtimer_del(&wp->resize_timer);
1.188     nicm     1413: }
                   1414:
1.294     nicm     1415: /* Start the resize timer. */
                   1416: static void
                   1417: server_client_start_resize_timer(struct window_pane *wp)
                   1418: {
                   1419:        struct timeval  tv = { .tv_usec = 250000 };
                   1420:
1.356   ! nicm     1421:        log_debug("%s: %%%u resize timer started", __func__, wp->id);
        !          1422:        evtimer_add(&wp->resize_timer, &tv);
1.294     nicm     1423: }
                   1424:
1.356   ! nicm     1425: /* Force timer event. */
1.294     nicm     1426: static void
1.356   ! nicm     1427: server_client_force_timer(__unused int fd, __unused short events, void *data)
1.294     nicm     1428: {
                   1429:        struct window_pane      *wp = data;
                   1430:
1.356   ! nicm     1431:        log_debug("%s: %%%u force timer expired", __func__, wp->id);
        !          1432:        evtimer_del(&wp->force_timer);
        !          1433:        wp->flags |= PANE_RESIZENOW;
        !          1434: }
1.294     nicm     1435:
1.356   ! nicm     1436: /* Start the force timer. */
        !          1437: static void
        !          1438: server_client_start_force_timer(struct window_pane *wp)
        !          1439: {
        !          1440:        struct timeval  tv = { .tv_usec = 10000 };
1.294     nicm     1441:
1.356   ! nicm     1442:        log_debug("%s: %%%u force timer started", __func__, wp->id);
        !          1443:        evtimer_add(&wp->force_timer, &tv);
1.294     nicm     1444: }
                   1445:
1.188     nicm     1446: /* Check if pane should be resized. */
1.190     nicm     1447: static void
1.344     nicm     1448: server_client_check_pane_resize(struct window_pane *wp)
1.188     nicm     1449: {
1.356   ! nicm     1450:        if (!event_initialized(&wp->resize_timer))
        !          1451:                evtimer_set(&wp->resize_timer, server_client_resize_timer, wp);
        !          1452:        if (!event_initialized(&wp->force_timer))
        !          1453:                evtimer_set(&wp->force_timer, server_client_force_timer, wp);
        !          1454:
1.294     nicm     1455:        if (~wp->flags & PANE_RESIZE)
1.188     nicm     1456:                return;
1.356   ! nicm     1457:        log_debug("%s: %%%u needs to be resized", __func__, wp->id);
1.188     nicm     1458:
1.356   ! nicm     1459:        if (evtimer_pending(&wp->resize_timer, NULL)) {
        !          1460:                log_debug("%s: %%%u resize timer is running", __func__, wp->id);
        !          1461:                return;
        !          1462:        }
        !          1463:        server_client_start_resize_timer(wp);
1.188     nicm     1464:
1.356   ! nicm     1465:        if (~wp->flags & PANE_RESIZEFORCE) {
        !          1466:                /*
        !          1467:                 * The timer is not running and we don't need to force a
        !          1468:                 * resize, so just resize immediately.
        !          1469:                 */
        !          1470:                log_debug("%s: resizing %%%u now", __func__, wp->id);
        !          1471:                window_pane_send_resize(wp, 0);
        !          1472:                wp->flags &= ~PANE_RESIZE;
        !          1473:        } else {
        !          1474:                /*
        !          1475:                 * The timer is not running, but we need to force a resize. If
        !          1476:                 * the force timer has expired, resize to the real size now.
        !          1477:                 * Otherwise resize to the force size and start the timer.
        !          1478:                 */
        !          1479:                if (wp->flags & PANE_RESIZENOW) {
        !          1480:                        log_debug("%s: resizing %%%u after forced resize", __func__, wp->id);
        !          1481:                        window_pane_send_resize(wp, 0);
        !          1482:                        wp->flags &= ~(PANE_RESIZE|PANE_RESIZEFORCE|PANE_RESIZENOW);
        !          1483:                } else if (!evtimer_pending(&wp->force_timer, NULL)) {
        !          1484:                        log_debug("%s: forcing resize of %%%u", __func__, wp->id);
        !          1485:                        window_pane_send_resize(wp, 1);
        !          1486:                        server_client_start_force_timer(wp);
        !          1487:                }
        !          1488:        }
1.345     nicm     1489: }
                   1490:
                   1491: /* Check pane buffer size. */
                   1492: static void
                   1493: server_client_check_pane_buffer(struct window_pane *wp)
                   1494: {
                   1495:        struct evbuffer                 *evb = wp->event->input;
                   1496:        size_t                           minimum;
                   1497:        struct client                   *c;
1.346     nicm     1498:        struct window_pane_offset       *wpo;
                   1499:        int                              off = 1, flag;
                   1500:        u_int                            attached_clients = 0;
1.353     nicm     1501:        size_t                           new_size;
1.345     nicm     1502:
                   1503:        /*
1.352     nicm     1504:         * Work out the minimum used size. This is the most that can be removed
                   1505:         * from the buffer.
1.345     nicm     1506:         */
1.352     nicm     1507:        minimum = wp->offset.used;
                   1508:        if (wp->pipe_fd != -1 && wp->pipe_offset.used < minimum)
                   1509:                minimum = wp->pipe_offset.used;
1.345     nicm     1510:        TAILQ_FOREACH(c, &clients, entry) {
                   1511:                if (c->session == NULL)
                   1512:                        continue;
1.346     nicm     1513:                attached_clients++;
                   1514:
                   1515:                if (~c->flags & CLIENT_CONTROL) {
1.345     nicm     1516:                        off = 0;
                   1517:                        continue;
                   1518:                }
1.346     nicm     1519:                wpo = control_pane_offset(c, wp, &flag);
                   1520:                if (wpo == NULL) {
1.345     nicm     1521:                        off = 0;
1.346     nicm     1522:                        continue;
                   1523:                }
                   1524:                if (!flag)
                   1525:                        off = 0;
                   1526:
1.353     nicm     1527:                window_pane_get_new_data(wp, wpo, &new_size);
                   1528:                log_debug("%s: %s has %zu bytes used and %zu left for %%%u",
                   1529:                    __func__, c->name, wpo->used - wp->base_offset, new_size,
                   1530:                    wp->id);
                   1531:                if (new_size > SERVER_CLIENT_PANE_LIMIT) {
1.355     nicm     1532:                        control_discard(c);
1.352     nicm     1533:                        c->flags |= CLIENT_EXIT;
1.353     nicm     1534:                }
                   1535:                if (wpo->used < minimum)
1.352     nicm     1536:                        minimum = wpo->used;
1.345     nicm     1537:        }
1.346     nicm     1538:        if (attached_clients == 0)
                   1539:                off = 0;
1.345     nicm     1540:        minimum -= wp->base_offset;
                   1541:        if (minimum == 0)
                   1542:                goto out;
                   1543:
                   1544:        /* Drain the buffer. */
1.352     nicm     1545:        log_debug("%s: %%%u has %zu minimum (of %zu) bytes used", __func__,
                   1546:            wp->id, minimum, EVBUFFER_LENGTH(evb));
1.345     nicm     1547:        evbuffer_drain(evb, minimum);
                   1548:
                   1549:        /*
                   1550:         * Adjust the base offset. If it would roll over, all the offsets into
                   1551:         * the buffer need to be adjusted.
                   1552:         */
                   1553:        if (wp->base_offset > SIZE_MAX - minimum) {
                   1554:                log_debug("%s: %%%u base offset has wrapped", __func__, wp->id);
                   1555:                wp->offset.used -= wp->base_offset;
1.352     nicm     1556:                if (wp->pipe_fd != -1)
1.345     nicm     1557:                        wp->pipe_offset.used -= wp->base_offset;
                   1558:                TAILQ_FOREACH(c, &clients, entry) {
                   1559:                        if (c->session == NULL || (~c->flags & CLIENT_CONTROL))
                   1560:                                continue;
1.346     nicm     1561:                        wpo = control_pane_offset(c, wp, &flag);
1.352     nicm     1562:                        if (wpo != NULL && !flag)
1.346     nicm     1563:                                wpo->used -= wp->base_offset;
1.345     nicm     1564:                }
                   1565:                wp->base_offset = minimum;
                   1566:        } else
                   1567:                wp->base_offset += minimum;
                   1568:
                   1569: out:
                   1570:        /*
                   1571:         * If there is data remaining, and there are no clients able to consume
1.351     nicm     1572:         * it, do not read any more. This is true when there are attached
                   1573:         * clients, all of which are control clients which are not able to
                   1574:         * accept any more data.
1.345     nicm     1575:         */
1.352     nicm     1576:        log_debug("%s: pane %%%u is %s", __func__, wp->id, off ? "off" : "on");
1.345     nicm     1577:        if (off)
                   1578:                bufferevent_disable(wp->event, EV_READ);
                   1579:        else
                   1580:                bufferevent_enable(wp->event, EV_READ);
1.91      nicm     1581: }
                   1582:
                   1583: /* Check whether pane should be focused. */
1.190     nicm     1584: static void
1.344     nicm     1585: server_client_check_pane_focus(struct window_pane *wp)
1.91      nicm     1586: {
1.93      nicm     1587:        struct client   *c;
1.102     nicm     1588:        int              push;
                   1589:
                   1590:        /* Do we need to push the focus state? */
                   1591:        push = wp->flags & PANE_FOCUSPUSH;
                   1592:        wp->flags &= ~PANE_FOCUSPUSH;
1.91      nicm     1593:
                   1594:        /* If we're not the active pane in our window, we're not focused. */
                   1595:        if (wp->window->active != wp)
                   1596:                goto not_focused;
                   1597:
                   1598:        /* If we're in a mode, we're not focused. */
                   1599:        if (wp->screen != &wp->base)
                   1600:                goto not_focused;
                   1601:
                   1602:        /*
1.93      nicm     1603:         * If our window is the current window in any focused clients with an
                   1604:         * attached session, we're focused.
1.91      nicm     1605:         */
1.135     nicm     1606:        TAILQ_FOREACH(c, &clients, entry) {
                   1607:                if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
1.91      nicm     1608:                        continue;
1.255     nicm     1609:                if (c->session->attached == 0)
1.93      nicm     1610:                        continue;
                   1611:
                   1612:                if (c->session->curw->window == wp->window)
1.91      nicm     1613:                        goto focused;
                   1614:        }
                   1615:
                   1616: not_focused:
1.251     nicm     1617:        if (push || (wp->flags & PANE_FOCUSED)) {
                   1618:                if (wp->base.mode & MODE_FOCUSON)
                   1619:                        bufferevent_write(wp->event, "\033[O", 3);
                   1620:                notify_pane("pane-focus-out", wp);
                   1621:        }
1.91      nicm     1622:        wp->flags &= ~PANE_FOCUSED;
                   1623:        return;
                   1624:
                   1625: focused:
1.251     nicm     1626:        if (push || !(wp->flags & PANE_FOCUSED)) {
                   1627:                if (wp->base.mode & MODE_FOCUSON)
                   1628:                        bufferevent_write(wp->event, "\033[I", 3);
                   1629:                notify_pane("pane-focus-in", wp);
1.275     nicm     1630:                session_update_activity(c->session, NULL);
1.251     nicm     1631:        }
1.91      nicm     1632:        wp->flags |= PANE_FOCUSED;
1.2       nicm     1633: }
                   1634:
1.18      nicm     1635: /*
                   1636:  * Update cursor position and mode settings. The scroll region and attributes
                   1637:  * are cleared when idle (waiting for an event) as this is the most likely time
                   1638:  * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
                   1639:  * compromise between excessive resets and likelihood of an interrupt.
                   1640:  *
                   1641:  * tty_region/tty_reset/tty_update_mode already take care of not resetting
                   1642:  * things that are already in their default state.
                   1643:  */
1.190     nicm     1644: static void
1.18      nicm     1645: server_client_reset_state(struct client *c)
1.1       nicm     1646: {
1.332     nicm     1647:        struct tty              *tty = &c->tty;
1.18      nicm     1648:        struct window           *w = c->session->curw->window;
1.341     nicm     1649:        struct window_pane      *wp = server_client_get_pane(c), *loop;
1.336     nicm     1650:        struct screen           *s = NULL;
1.163     nicm     1651:        struct options          *oo = c->session->options;
1.336     nicm     1652:        int                      mode = 0, cursor, flags;
1.261     nicm     1653:        u_int                    cx = 0, cy = 0, ox, oy, sx, sy;
1.60      nicm     1654:
1.186     nicm     1655:        if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.86      nicm     1656:                return;
                   1657:
1.332     nicm     1658:        /* Disable the block flag. */
                   1659:        flags = (tty->flags & TTY_BLOCK);
                   1660:        tty->flags &= ~TTY_BLOCK;
                   1661:
1.309     nicm     1662:        /* Get mode from overlay if any, else from screen. */
                   1663:        if (c->overlay_draw != NULL) {
1.336     nicm     1664:                if (c->overlay_mode != NULL)
                   1665:                        s = c->overlay_mode(c, &cx, &cy);
                   1666:        } else
1.309     nicm     1667:                s = wp->screen;
1.336     nicm     1668:        if (s != NULL)
1.309     nicm     1669:                mode = s->mode;
1.336     nicm     1670:        if (c->prompt_string != NULL || c->message_string != NULL)
                   1671:                mode &= ~MODE_CURSOR;
1.309     nicm     1672:        log_debug("%s: client %s mode %x", __func__, c->name, mode);
                   1673:
                   1674:        /* Reset region and margin. */
1.332     nicm     1675:        tty_region_off(tty);
                   1676:        tty_margin_off(tty);
1.1       nicm     1677:
1.261     nicm     1678:        /* Move cursor to pane cursor and offset. */
1.309     nicm     1679:        if (c->overlay_draw == NULL) {
                   1680:                cursor = 0;
1.332     nicm     1681:                tty_window_offset(tty, &ox, &oy, &sx, &sy);
1.309     nicm     1682:                if (wp->xoff + s->cx >= ox && wp->xoff + s->cx <= ox + sx &&
                   1683:                    wp->yoff + s->cy >= oy && wp->yoff + s->cy <= oy + sy) {
                   1684:                        cursor = 1;
1.261     nicm     1685:
1.309     nicm     1686:                        cx = wp->xoff + s->cx - ox;
                   1687:                        cy = wp->yoff + s->cy - oy;
1.261     nicm     1688:
1.309     nicm     1689:                        if (status_at_line(c) == 0)
                   1690:                                cy += status_line_size(c);
                   1691:                }
                   1692:                if (!cursor)
                   1693:                        mode &= ~MODE_CURSOR;
1.261     nicm     1694:        }
1.332     nicm     1695:        log_debug("%s: cursor to %u,%u", __func__, cx, cy);
                   1696:        tty_cursor(tty, cx, cy);
1.1       nicm     1697:
1.50      nicm     1698:        /*
1.131     nicm     1699:         * Set mouse mode if requested. To support dragging, always use button
                   1700:         * mode.
1.57      nicm     1701:         */
1.209     nicm     1702:        if (options_get_number(oo, "mouse")) {
                   1703:                mode &= ~ALL_MOUSE_MODES;
1.309     nicm     1704:                if (c->overlay_draw == NULL) {
                   1705:                        TAILQ_FOREACH(loop, &w->panes, entry) {
                   1706:                                if (loop->screen->mode & MODE_MOUSE_ALL)
                   1707:                                        mode |= MODE_MOUSE_ALL;
                   1708:                        }
1.209     nicm     1709:                }
                   1710:                if (~mode & MODE_MOUSE_ALL)
                   1711:                        mode |= MODE_MOUSE_BUTTON;
                   1712:        }
1.215     nicm     1713:
                   1714:        /* Clear bracketed paste mode if at the prompt. */
1.309     nicm     1715:        if (c->overlay_draw == NULL && c->prompt_string != NULL)
1.215     nicm     1716:                mode &= ~MODE_BRACKETPASTE;
1.48      nicm     1717:
                   1718:        /* Set the terminal mode and reset attributes. */
1.332     nicm     1719:        tty_update_mode(tty, mode, s);
                   1720:        tty_reset(tty);
1.330     nicm     1721:
1.332     nicm     1722:        /* All writing must be done, send a sync end (if it was started). */
                   1723:        tty_sync_end(tty);
                   1724:        tty->flags |= flags;
1.17      nicm     1725: }
                   1726:
                   1727: /* Repeat time callback. */
1.190     nicm     1728: static void
1.170     nicm     1729: server_client_repeat_timer(__unused int fd, __unused short events, void *data)
1.17      nicm     1730: {
                   1731:        struct client   *c = data;
                   1732:
1.85      nicm     1733:        if (c->flags & CLIENT_REPEAT) {
1.178     nicm     1734:                server_client_set_key_table(c, NULL);
1.132     nicm     1735:                c->flags &= ~CLIENT_REPEAT;
                   1736:                server_status_client(c);
1.85      nicm     1737:        }
1.192     nicm     1738: }
                   1739:
                   1740: /* Double-click callback. */
                   1741: static void
                   1742: server_client_click_timer(__unused int fd, __unused short events, void *data)
                   1743: {
1.306     nicm     1744:        struct client           *c = data;
                   1745:        struct key_event        *event;
                   1746:
                   1747:        log_debug("click timer expired");
1.192     nicm     1748:
1.306     nicm     1749:        if (c->flags & CLIENT_TRIPLECLICK) {
                   1750:                /*
                   1751:                 * Waiting for a third click that hasn't happened, so this must
                   1752:                 * have been a double click.
                   1753:                 */
                   1754:                event = xmalloc(sizeof *event);
                   1755:                event->key = KEYC_DOUBLECLICK;
                   1756:                memcpy(&event->m, &c->click_event, sizeof event->m);
                   1757:                if (!server_client_handle_key(c, event))
                   1758:                        free(event);
                   1759:        }
1.192     nicm     1760:        c->flags &= ~(CLIENT_DOUBLECLICK|CLIENT_TRIPLECLICK);
1.1       nicm     1761: }
                   1762:
1.36      nicm     1763: /* Check if client should be exited. */
1.190     nicm     1764: static void
1.36      nicm     1765: server_client_check_exit(struct client *c)
                   1766: {
1.300     nicm     1767:        struct client_file      *cf;
1.352     nicm     1768:        const char              *name = c->exit_session;
1.300     nicm     1769:
1.354     nicm     1770:        if (c->flags & (CLIENT_DEAD|CLIENT_EXITED))
                   1771:                return;
                   1772:        if (~c->flags & CLIENT_EXIT)
1.36      nicm     1773:                return;
                   1774:
1.352     nicm     1775:        if (c->flags & CLIENT_CONTROL) {
1.355     nicm     1776:                control_discard(c);
1.352     nicm     1777:                if (!control_all_done(c))
                   1778:                        return;
                   1779:        }
1.300     nicm     1780:        RB_FOREACH(cf, client_files, &c->files) {
                   1781:                if (EVBUFFER_LENGTH(cf->buffer) != 0)
                   1782:                        return;
                   1783:        }
1.36      nicm     1784:
1.249     nicm     1785:        if (c->flags & CLIENT_ATTACHED)
                   1786:                notify_client("client-detached", c);
1.286     nicm     1787:        c->flags |= CLIENT_EXITED;
1.352     nicm     1788:
                   1789:        switch (c->exit_type) {
                   1790:        case CLIENT_EXIT_RETURN:
                   1791:                proc_send(c->peer, MSG_EXIT, -1, &c->retval, sizeof c->retval);
                   1792:                break;
                   1793:        case CLIENT_EXIT_SHUTDOWN:
                   1794:                proc_send(c->peer, MSG_SHUTDOWN, -1, NULL, 0);
                   1795:                break;
                   1796:        case CLIENT_EXIT_DETACH:
                   1797:                proc_send(c->peer, c->exit_msgtype, -1, name, strlen(name) + 1);
                   1798:                break;
                   1799:        }
                   1800:        free(c->exit_session);
1.38      nicm     1801: }
                   1802:
1.218     nicm     1803: /* Redraw timer callback. */
                   1804: static void
                   1805: server_client_redraw_timer(__unused int fd, __unused short events,
1.299     nicm     1806:     __unused void *data)
1.218     nicm     1807: {
                   1808:        log_debug("redraw timer fired");
                   1809: }
                   1810:
1.1       nicm     1811: /* Check for client redraws. */
1.190     nicm     1812: static void
1.1       nicm     1813: server_client_check_redraw(struct client *c)
                   1814: {
                   1815:        struct session          *s = c->session;
1.137     nicm     1816:        struct tty              *tty = &c->tty;
1.326     nicm     1817:        struct window           *w = c->session->curw->window;
1.1       nicm     1818:        struct window_pane      *wp;
1.325     nicm     1819:        int                      needed, flags, mode = tty->mode, new_flags = 0;
1.326     nicm     1820:        int                      redraw;
                   1821:        u_int                    bit = 0;
1.218     nicm     1822:        struct timeval           tv = { .tv_usec = 1000 };
                   1823:        static struct event      ev;
                   1824:        size_t                   left;
1.1       nicm     1825:
1.86      nicm     1826:        if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
1.79      nicm     1827:                return;
1.257     nicm     1828:        if (c->flags & CLIENT_ALLREDRAWFLAGS) {
1.325     nicm     1829:                log_debug("%s: redraw%s%s%s%s%s", c->name,
1.257     nicm     1830:                    (c->flags & CLIENT_REDRAWWINDOW) ? " window" : "",
                   1831:                    (c->flags & CLIENT_REDRAWSTATUS) ? " status" : "",
1.282     nicm     1832:                    (c->flags & CLIENT_REDRAWBORDERS) ? " borders" : "",
1.325     nicm     1833:                    (c->flags & CLIENT_REDRAWOVERLAY) ? " overlay" : "",
                   1834:                    (c->flags & CLIENT_REDRAWPANES) ? " panes" : "");
1.257     nicm     1835:        }
1.218     nicm     1836:
                   1837:        /*
                   1838:         * If there is outstanding data, defer the redraw until it has been
                   1839:         * consumed. We can just add a timer to get out of the event loop and
                   1840:         * end up back here.
                   1841:         */
                   1842:        needed = 0;
1.256     nicm     1843:        if (c->flags & CLIENT_ALLREDRAWFLAGS)
1.218     nicm     1844:                needed = 1;
                   1845:        else {
1.326     nicm     1846:                TAILQ_FOREACH(wp, &w->panes, entry) {
1.218     nicm     1847:                        if (wp->flags & PANE_REDRAW) {
                   1848:                                needed = 1;
                   1849:                                break;
                   1850:                        }
                   1851:                }
1.325     nicm     1852:                if (needed)
                   1853:                        new_flags |= CLIENT_REDRAWPANES;
1.218     nicm     1854:        }
1.241     nicm     1855:        if (needed && (left = EVBUFFER_LENGTH(tty->out)) != 0) {
                   1856:                log_debug("%s: redraw deferred (%zu left)", c->name, left);
                   1857:                if (!evtimer_initialized(&ev))
                   1858:                        evtimer_set(&ev, server_client_redraw_timer, NULL);
                   1859:                if (!evtimer_pending(&ev, NULL)) {
1.218     nicm     1860:                        log_debug("redraw timer started");
                   1861:                        evtimer_add(&ev, &tv);
1.241     nicm     1862:                }
1.327     nicm     1863:
                   1864:                if (~c->flags & CLIENT_REDRAWWINDOW) {
1.326     nicm     1865:                        TAILQ_FOREACH(wp, &w->panes, entry) {
1.327     nicm     1866:                                if (wp->flags & PANE_REDRAW) {
                   1867:                                        log_debug("%s: pane %%%u needs redraw",
                   1868:                                            c->name, wp->id);
1.326     nicm     1869:                                        c->redraw_panes |= (1 << bit);
1.327     nicm     1870:                                }
1.326     nicm     1871:                                if (++bit == 64) {
                   1872:                                        /*
                   1873:                                         * If more that 64 panes, give up and
                   1874:                                         * just redraw the window.
                   1875:                                         */
                   1876:                                        new_flags &= CLIENT_REDRAWPANES;
                   1877:                                        new_flags |= CLIENT_REDRAWWINDOW;
                   1878:                                        break;
                   1879:                                }
                   1880:                        }
1.327     nicm     1881:                        if (c->redraw_panes != 0)
                   1882:                                c->flags |= CLIENT_REDRAWPANES;
1.326     nicm     1883:                }
1.325     nicm     1884:                c->flags |= new_flags;
1.241     nicm     1885:                return;
                   1886:        } else if (needed)
1.218     nicm     1887:                log_debug("%s: redraw needed", c->name);
1.79      nicm     1888:
1.219     nicm     1889:        flags = tty->flags & (TTY_BLOCK|TTY_FREEZE|TTY_NOCURSOR);
1.326     nicm     1890:        tty->flags = (tty->flags & ~(TTY_BLOCK|TTY_FREEZE))|TTY_NOCURSOR;
1.137     nicm     1891:
1.256     nicm     1892:        if (~c->flags & CLIENT_REDRAWWINDOW) {
                   1893:                /*
                   1894:                 * If not redrawing the entire window, check whether each pane
                   1895:                 * needs to be redrawn.
                   1896:                 */
1.326     nicm     1897:                TAILQ_FOREACH(wp, &w->panes, entry) {
                   1898:                        redraw = 0;
                   1899:                        if (wp->flags & PANE_REDRAW)
                   1900:                                redraw = 1;
                   1901:                        else if (c->flags & CLIENT_REDRAWPANES)
                   1902:                                redraw = !!(c->redraw_panes & (1 << bit));
1.328     nicm     1903:                        bit++;
1.326     nicm     1904:                        if (!redraw)
                   1905:                                continue;
                   1906:                        log_debug("%s: redrawing pane %%%u", __func__, wp->id);
                   1907:                        screen_redraw_pane(c, wp);
1.1       nicm     1908:                }
1.331     nicm     1909:                c->redraw_panes = 0;
1.325     nicm     1910:                c->flags &= ~CLIENT_REDRAWPANES;
1.1       nicm     1911:        }
                   1912:
1.256     nicm     1913:        if (c->flags & CLIENT_ALLREDRAWFLAGS) {
                   1914:                if (options_get_number(s->options, "set-titles"))
                   1915:                        server_client_set_title(c);
                   1916:                screen_redraw_screen(c);
                   1917:        }
1.1       nicm     1918:
1.326     nicm     1919:        tty->flags = (tty->flags & ~TTY_NOCURSOR)|(flags & TTY_NOCURSOR);
1.320     nicm     1920:        tty_update_mode(tty, mode, NULL);
1.326     nicm     1921:        tty->flags = (tty->flags & ~(TTY_BLOCK|TTY_FREEZE|TTY_NOCURSOR))|flags;
1.1       nicm     1922:
1.256     nicm     1923:        c->flags &= ~(CLIENT_ALLREDRAWFLAGS|CLIENT_STATUSFORCE);
1.230     nicm     1924:
                   1925:        if (needed) {
                   1926:                /*
                   1927:                 * We would have deferred the redraw unless the output buffer
                   1928:                 * was empty, so we can record how many bytes the redraw
                   1929:                 * generated.
                   1930:                 */
                   1931:                c->redraw = EVBUFFER_LENGTH(tty->out);
                   1932:                log_debug("%s: redraw added %zu bytes", c->name, c->redraw);
                   1933:        }
1.1       nicm     1934: }
                   1935:
                   1936: /* Set client title. */
1.190     nicm     1937: static void
1.1       nicm     1938: server_client_set_title(struct client *c)
                   1939: {
1.128     nicm     1940:        struct session          *s = c->session;
                   1941:        const char              *template;
                   1942:        char                    *title;
                   1943:        struct format_tree      *ft;
1.1       nicm     1944:
1.163     nicm     1945:        template = options_get_string(s->options, "set-titles-string");
1.25      nicm     1946:
1.228     nicm     1947:        ft = format_create(c, NULL, FORMAT_NONE, 0);
1.128     nicm     1948:        format_defaults(ft, c, NULL, NULL, NULL);
                   1949:
1.269     nicm     1950:        title = format_expand_time(ft, template);
1.1       nicm     1951:        if (c->title == NULL || strcmp(title, c->title) != 0) {
1.77      nicm     1952:                free(c->title);
1.1       nicm     1953:                c->title = xstrdup(title);
                   1954:                tty_set_title(&c->tty, c->title);
                   1955:        }
1.77      nicm     1956:        free(title);
1.128     nicm     1957:
                   1958:        format_free(ft);
1.1       nicm     1959: }
                   1960:
                   1961: /* Dispatch message from client. */
1.190     nicm     1962: static void
1.162     nicm     1963: server_client_dispatch(struct imsg *imsg, void *arg)
1.1       nicm     1964: {
1.300     nicm     1965:        struct client   *c = arg;
                   1966:        ssize_t          datalen;
                   1967:        struct session  *s;
1.1       nicm     1968:
1.162     nicm     1969:        if (c->flags & CLIENT_DEAD)
                   1970:                return;
                   1971:
                   1972:        if (imsg == NULL) {
                   1973:                server_client_lost(c);
                   1974:                return;
                   1975:        }
1.1       nicm     1976:
1.162     nicm     1977:        datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
1.1       nicm     1978:
1.162     nicm     1979:        switch (imsg->hdr.type) {
1.329     nicm     1980:        case MSG_IDENTIFY_FEATURES:
1.162     nicm     1981:        case MSG_IDENTIFY_FLAGS:
                   1982:        case MSG_IDENTIFY_TERM:
                   1983:        case MSG_IDENTIFY_TTYNAME:
                   1984:        case MSG_IDENTIFY_CWD:
                   1985:        case MSG_IDENTIFY_STDIN:
1.351     nicm     1986:        case MSG_IDENTIFY_STDOUT:
1.162     nicm     1987:        case MSG_IDENTIFY_ENVIRON:
                   1988:        case MSG_IDENTIFY_CLIENTPID:
                   1989:        case MSG_IDENTIFY_DONE:
                   1990:                server_client_dispatch_identify(c, imsg);
                   1991:                break;
                   1992:        case MSG_COMMAND:
                   1993:                server_client_dispatch_command(c, imsg);
                   1994:                break;
                   1995:        case MSG_RESIZE:
                   1996:                if (datalen != 0)
                   1997:                        fatalx("bad MSG_RESIZE size");
1.1       nicm     1998:
1.162     nicm     1999:                if (c->flags & CLIENT_CONTROL)
1.1       nicm     2000:                        break;
1.295     nicm     2001:                server_client_update_latest(c);
1.282     nicm     2002:                server_client_clear_overlay(c);
1.236     nicm     2003:                tty_resize(&c->tty);
                   2004:                recalculate_sizes();
                   2005:                server_redraw_client(c);
1.174     nicm     2006:                if (c->session != NULL)
1.196     nicm     2007:                        notify_client("client-resized", c);
1.162     nicm     2008:                break;
                   2009:        case MSG_EXITING:
                   2010:                if (datalen != 0)
                   2011:                        fatalx("bad MSG_EXITING size");
                   2012:                c->session = NULL;
                   2013:                tty_close(&c->tty);
                   2014:                proc_send(c->peer, MSG_EXITED, -1, NULL, 0);
                   2015:                break;
                   2016:        case MSG_WAKEUP:
                   2017:        case MSG_UNLOCK:
                   2018:                if (datalen != 0)
                   2019:                        fatalx("bad MSG_WAKEUP size");
1.121     nicm     2020:
1.162     nicm     2021:                if (!(c->flags & CLIENT_SUSPENDED))
                   2022:                        break;
                   2023:                c->flags &= ~CLIENT_SUSPENDED;
1.10      nicm     2024:
1.348     nicm     2025:                if (c->fd == -1) /* exited in the meantime */
1.1       nicm     2026:                        break;
1.162     nicm     2027:                s = c->session;
1.1       nicm     2028:
1.162     nicm     2029:                if (gettimeofday(&c->activity_time, NULL) != 0)
                   2030:                        fatal("gettimeofday failed");
                   2031:
                   2032:                tty_start_tty(&c->tty);
                   2033:                server_redraw_client(c);
                   2034:                recalculate_sizes();
1.184     nicm     2035:
                   2036:                if (s != NULL)
                   2037:                        session_update_activity(s, &c->activity_time);
1.162     nicm     2038:                break;
                   2039:        case MSG_SHELL:
                   2040:                if (datalen != 0)
                   2041:                        fatalx("bad MSG_SHELL size");
1.1       nicm     2042:
1.162     nicm     2043:                server_client_dispatch_shell(c);
                   2044:                break;
1.300     nicm     2045:        case MSG_WRITE_READY:
                   2046:                server_client_dispatch_write_ready(c, imsg);
                   2047:                break;
                   2048:        case MSG_READ:
                   2049:                server_client_dispatch_read_data(c, imsg);
                   2050:                break;
                   2051:        case MSG_READ_DONE:
                   2052:                server_client_dispatch_read_done(c, imsg);
                   2053:                break;
1.1       nicm     2054:        }
                   2055: }
                   2056:
1.194     nicm     2057: /* Callback when command is done. */
                   2058: static enum cmd_retval
1.195     nicm     2059: server_client_command_done(struct cmdq_item *item, __unused void *data)
1.194     nicm     2060: {
1.316     nicm     2061:        struct client   *c = cmdq_get_client(item);
1.194     nicm     2062:
                   2063:        if (~c->flags & CLIENT_ATTACHED)
                   2064:                c->flags |= CLIENT_EXIT;
1.352     nicm     2065:        else if (~c->flags & CLIENT_EXIT)
1.314     nicm     2066:                tty_send_requests(&c->tty);
1.194     nicm     2067:        return (CMD_RETURN_NORMAL);
                   2068: }
                   2069:
1.1       nicm     2070: /* Handle command message. */
1.190     nicm     2071: static void
1.162     nicm     2072: server_client_dispatch_command(struct client *c, struct imsg *imsg)
1.1       nicm     2073: {
1.300     nicm     2074:        struct msg_command        data;
1.108     nicm     2075:        char                     *buf;
                   2076:        size_t                    len;
                   2077:        int                       argc;
                   2078:        char                    **argv, *cause;
1.285     nicm     2079:        struct cmd_parse_result  *pr;
1.246     nicm     2080:
                   2081:        if (c->flags & CLIENT_EXIT)
                   2082:                return;
1.108     nicm     2083:
                   2084:        if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data)
                   2085:                fatalx("bad MSG_COMMAND size");
                   2086:        memcpy(&data, imsg->data, sizeof data);
                   2087:
1.124     nicm     2088:        buf = (char *)imsg->data + sizeof data;
1.108     nicm     2089:        len = imsg->hdr.len  - IMSG_HEADER_SIZE - sizeof data;
                   2090:        if (len > 0 && buf[len - 1] != '\0')
                   2091:                fatalx("bad MSG_COMMAND string");
                   2092:
                   2093:        argc = data.argc;
                   2094:        if (cmd_unpack_argv(buf, len, argc, &argv) != 0) {
1.194     nicm     2095:                cause = xstrdup("command too long");
1.1       nicm     2096:                goto error;
                   2097:        }
                   2098:
                   2099:        if (argc == 0) {
                   2100:                argc = 1;
                   2101:                argv = xcalloc(1, sizeof *argv);
                   2102:                *argv = xstrdup("new-session");
                   2103:        }
                   2104:
1.285     nicm     2105:        pr = cmd_parse_from_arguments(argc, argv, NULL);
                   2106:        switch (pr->status) {
                   2107:        case CMD_PARSE_EMPTY:
                   2108:                cause = xstrdup("empty command");
1.1       nicm     2109:                goto error;
1.285     nicm     2110:        case CMD_PARSE_ERROR:
                   2111:                cause = pr->error;
                   2112:                goto error;
                   2113:        case CMD_PARSE_SUCCESS:
                   2114:                break;
1.1       nicm     2115:        }
                   2116:        cmd_free_argv(argc, argv);
                   2117:
1.318     nicm     2118:        cmdq_append(c, cmdq_get_command(pr->cmdlist, NULL));
1.194     nicm     2119:        cmdq_append(c, cmdq_get_callback(server_client_command_done, NULL));
1.285     nicm     2120:
                   2121:        cmd_list_free(pr->cmdlist);
1.1       nicm     2122:        return;
                   2123:
                   2124: error:
1.285     nicm     2125:        cmd_free_argv(argc, argv);
                   2126:
1.284     nicm     2127:        cmdq_append(c, cmdq_get_error(cause));
                   2128:        free(cause);
1.88      nicm     2129:
1.36      nicm     2130:        c->flags |= CLIENT_EXIT;
1.1       nicm     2131: }
                   2132:
                   2133: /* Handle identify message. */
1.190     nicm     2134: static void
1.162     nicm     2135: server_client_dispatch_identify(struct client *c, struct imsg *imsg)
1.1       nicm     2136: {
1.165     nicm     2137:        const char      *data, *home;
1.232     nicm     2138:        size_t           datalen;
1.329     nicm     2139:        int              flags, feat;
1.216     nicm     2140:        char            *name;
1.109     nicm     2141:
                   2142:        if (c->flags & CLIENT_IDENTIFIED)
                   2143:                fatalx("out-of-order identify message");
                   2144:
                   2145:        data = imsg->data;
                   2146:        datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
                   2147:
                   2148:        switch (imsg->hdr.type) {
1.329     nicm     2149:        case MSG_IDENTIFY_FEATURES:
                   2150:                if (datalen != sizeof feat)
                   2151:                        fatalx("bad MSG_IDENTIFY_FEATURES size");
                   2152:                memcpy(&feat, data, sizeof feat);
                   2153:                c->term_features |= feat;
                   2154:                log_debug("client %p IDENTIFY_FEATURES %s", c,
                   2155:                    tty_get_features(feat));
                   2156:                break;
1.109     nicm     2157:        case MSG_IDENTIFY_FLAGS:
                   2158:                if (datalen != sizeof flags)
                   2159:                        fatalx("bad MSG_IDENTIFY_FLAGS size");
                   2160:                memcpy(&flags, data, sizeof flags);
                   2161:                c->flags |= flags;
1.158     nicm     2162:                log_debug("client %p IDENTIFY_FLAGS %#x", c, flags);
1.109     nicm     2163:                break;
                   2164:        case MSG_IDENTIFY_TERM:
1.110     nicm     2165:                if (datalen == 0 || data[datalen - 1] != '\0')
1.109     nicm     2166:                        fatalx("bad MSG_IDENTIFY_TERM string");
1.329     nicm     2167:                if (*data == '\0')
                   2168:                        c->term_name = xstrdup("unknown");
                   2169:                else
                   2170:                        c->term_name = xstrdup(data);
1.158     nicm     2171:                log_debug("client %p IDENTIFY_TERM %s", c, data);
1.109     nicm     2172:                break;
                   2173:        case MSG_IDENTIFY_TTYNAME:
1.110     nicm     2174:                if (datalen == 0 || data[datalen - 1] != '\0')
1.109     nicm     2175:                        fatalx("bad MSG_IDENTIFY_TTYNAME string");
                   2176:                c->ttyname = xstrdup(data);
1.158     nicm     2177:                log_debug("client %p IDENTIFY_TTYNAME %s", c, data);
1.109     nicm     2178:                break;
                   2179:        case MSG_IDENTIFY_CWD:
1.155     nicm     2180:                if (datalen == 0 || data[datalen - 1] != '\0')
                   2181:                        fatalx("bad MSG_IDENTIFY_CWD string");
1.165     nicm     2182:                if (access(data, X_OK) == 0)
                   2183:                        c->cwd = xstrdup(data);
                   2184:                else if ((home = find_home()) != NULL)
                   2185:                        c->cwd = xstrdup(home);
                   2186:                else
                   2187:                        c->cwd = xstrdup("/");
1.158     nicm     2188:                log_debug("client %p IDENTIFY_CWD %s", c, data);
1.109     nicm     2189:                break;
                   2190:        case MSG_IDENTIFY_STDIN:
                   2191:                if (datalen != 0)
                   2192:                        fatalx("bad MSG_IDENTIFY_STDIN size");
                   2193:                c->fd = imsg->fd;
1.158     nicm     2194:                log_debug("client %p IDENTIFY_STDIN %d", c, imsg->fd);
1.109     nicm     2195:                break;
1.351     nicm     2196:        case MSG_IDENTIFY_STDOUT:
                   2197:                if (datalen != 0)
                   2198:                        fatalx("bad MSG_IDENTIFY_STDOUT size");
                   2199:                c->out_fd = imsg->fd;
                   2200:                log_debug("client %p IDENTIFY_STDOUT %d", c, imsg->fd);
                   2201:                break;
1.109     nicm     2202:        case MSG_IDENTIFY_ENVIRON:
1.110     nicm     2203:                if (datalen == 0 || data[datalen - 1] != '\0')
1.109     nicm     2204:                        fatalx("bad MSG_IDENTIFY_ENVIRON string");
                   2205:                if (strchr(data, '=') != NULL)
1.312     nicm     2206:                        environ_put(c->environ, data, 0);
1.158     nicm     2207:                log_debug("client %p IDENTIFY_ENVIRON %s", c, data);
1.143     nicm     2208:                break;
                   2209:        case MSG_IDENTIFY_CLIENTPID:
                   2210:                if (datalen != sizeof c->pid)
                   2211:                        fatalx("bad MSG_IDENTIFY_CLIENTPID size");
                   2212:                memcpy(&c->pid, data, sizeof c->pid);
1.158     nicm     2213:                log_debug("client %p IDENTIFY_CLIENTPID %ld", c, (long)c->pid);
1.109     nicm     2214:                break;
                   2215:        default:
                   2216:                break;
                   2217:        }
                   2218:
                   2219:        if (imsg->hdr.type != MSG_IDENTIFY_DONE)
                   2220:                return;
                   2221:        c->flags |= CLIENT_IDENTIFIED;
1.75      nicm     2222:
1.216     nicm     2223:        if (*c->ttyname != '\0')
                   2224:                name = xstrdup(c->ttyname);
                   2225:        else
                   2226:                xasprintf(&name, "client-%ld", (long)c->pid);
                   2227:        c->name = name;
                   2228:        log_debug("client %p name is %s", c, c->name);
                   2229:
1.351     nicm     2230:         if (c->flags & CLIENT_CONTROL)
1.300     nicm     2231:                control_start(c);
1.351     nicm     2232:        else if (c->fd != -1) {
1.348     nicm     2233:                if (tty_init(&c->tty, c) != 0) {
1.288     nicm     2234:                        close(c->fd);
                   2235:                        c->fd = -1;
                   2236:                } else {
                   2237:                        tty_resize(&c->tty);
                   2238:                        c->flags |= CLIENT_TERMINAL;
                   2239:                }
1.351     nicm     2240:                close(c->out_fd);
                   2241:                c->out_fd = -1;
1.75      nicm     2242:        }
1.1       nicm     2243:
1.288     nicm     2244:        /*
                   2245:         * If this is the first client that has finished identifying, load
                   2246:         * configuration files.
                   2247:         */
                   2248:        if ((~c->flags & CLIENT_EXIT) &&
                   2249:            !cfg_finished &&
                   2250:            c == TAILQ_FIRST(&clients) &&
                   2251:            TAILQ_NEXT(c, entry) == NULL)
                   2252:                start_cfg();
1.1       nicm     2253: }
                   2254:
                   2255: /* Handle shell message. */
1.190     nicm     2256: static void
1.162     nicm     2257: server_client_dispatch_shell(struct client *c)
1.1       nicm     2258: {
1.107     nicm     2259:        const char      *shell;
1.25      nicm     2260:
1.163     nicm     2261:        shell = options_get_string(global_s_options, "default-shell");
1.308     nicm     2262:        if (!checkshell(shell))
1.1       nicm     2263:                shell = _PATH_BSHELL;
1.240     nicm     2264:        proc_send(c->peer, MSG_SHELL, -1, shell, strlen(shell) + 1);
1.25      nicm     2265:
1.162     nicm     2266:        proc_kill_peer(c->peer);
1.169     nicm     2267: }
                   2268:
1.300     nicm     2269: /* Handle write ready message. */
1.169     nicm     2270: static void
1.300     nicm     2271: server_client_dispatch_write_ready(struct client *c, struct imsg *imsg)
1.169     nicm     2272: {
1.300     nicm     2273:        struct msg_write_ready  *msg = imsg->data;
                   2274:        size_t                   msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
                   2275:        struct client_file       find, *cf;
                   2276:
                   2277:        if (msglen != sizeof *msg)
                   2278:                fatalx("bad MSG_WRITE_READY size");
                   2279:        find.stream = msg->stream;
                   2280:        if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL)
                   2281:                return;
                   2282:        if (msg->error != 0) {
                   2283:                cf->error = msg->error;
                   2284:                file_fire_done(cf);
                   2285:        } else
                   2286:                file_push(cf);
1.169     nicm     2287: }
                   2288:
1.300     nicm     2289: /* Handle read data message. */
                   2290: static void
                   2291: server_client_dispatch_read_data(struct client *c, struct imsg *imsg)
1.169     nicm     2292: {
1.300     nicm     2293:        struct msg_read_data    *msg = imsg->data;
                   2294:        size_t                   msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
                   2295:        struct client_file       find, *cf;
1.301     nicm     2296:        void                    *bdata = msg + 1;
                   2297:        size_t                   bsize = msglen - sizeof *msg;
1.169     nicm     2298:
1.301     nicm     2299:        if (msglen < sizeof *msg)
1.300     nicm     2300:                fatalx("bad MSG_READ_DATA size");
                   2301:        find.stream = msg->stream;
                   2302:        if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL)
                   2303:                return;
1.169     nicm     2304:
1.300     nicm     2305:        log_debug("%s: file %d read %zu bytes", c->name, cf->stream, bsize);
                   2306:        if (cf->error == 0) {
                   2307:                if (evbuffer_add(cf->buffer, bdata, bsize) != 0) {
                   2308:                        cf->error = ENOMEM;
                   2309:                        file_fire_done(cf);
                   2310:                } else
                   2311:                        file_fire_read(cf);
1.169     nicm     2312:        }
                   2313: }
                   2314:
1.300     nicm     2315: /* Handle read done message. */
1.169     nicm     2316: static void
1.300     nicm     2317: server_client_dispatch_read_done(struct client *c, struct imsg *imsg)
1.169     nicm     2318: {
1.300     nicm     2319:        struct msg_read_done    *msg = imsg->data;
                   2320:        size_t                   msglen = imsg->hdr.len - IMSG_HEADER_SIZE;
                   2321:        struct client_file       find, *cf;
1.169     nicm     2322:
1.300     nicm     2323:        if (msglen != sizeof *msg)
                   2324:                fatalx("bad MSG_READ_DONE size");
                   2325:        find.stream = msg->stream;
                   2326:        if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL)
1.169     nicm     2327:                return;
                   2328:
1.300     nicm     2329:        log_debug("%s: file %d read done", c->name, cf->stream);
                   2330:        cf->error = msg->error;
                   2331:        file_fire_done(cf);
1.213     nicm     2332: }
                   2333:
                   2334: /* Get client working directory. */
                   2335: const char *
1.250     nicm     2336: server_client_get_cwd(struct client *c, struct session *s)
1.213     nicm     2337: {
1.250     nicm     2338:        const char      *home;
1.213     nicm     2339:
1.265     nicm     2340:        if (!cfg_finished && cfg_client != NULL)
                   2341:                return (cfg_client->cwd);
1.213     nicm     2342:        if (c != NULL && c->session == NULL && c->cwd != NULL)
                   2343:                return (c->cwd);
1.250     nicm     2344:        if (s != NULL && s->cwd != NULL)
                   2345:                return (s->cwd);
1.213     nicm     2346:        if (c != NULL && (s = c->session) != NULL && s->cwd != NULL)
                   2347:                return (s->cwd);
1.250     nicm     2348:        if ((home = find_home()) != NULL)
                   2349:                return (home);
                   2350:        return ("/");
1.337     nicm     2351: }
                   2352:
1.355     nicm     2353: /* Get control client flags. */
                   2354: static uint64_t
                   2355: server_client_control_flags(struct client *c, const char *next)
                   2356: {
                   2357:        if (strcmp(next, "pause-after") == 0) {
                   2358:                c->pause_age = 0;
                   2359:                return (CLIENT_CONTROL_PAUSEAFTER);
                   2360:        }
                   2361:        if (sscanf(next, "pause-after=%u", &c->pause_age) == 1) {
                   2362:                c->pause_age *= 1000;
                   2363:                return (CLIENT_CONTROL_PAUSEAFTER);
                   2364:        }
                   2365:        if (strcmp(next, "no-output") == 0)
                   2366:                return (CLIENT_CONTROL_NOOUTPUT);
                   2367:        return (0);
                   2368: }
                   2369:
1.337     nicm     2370: /* Set client flags. */
                   2371: void
                   2372: server_client_set_flags(struct client *c, const char *flags)
                   2373: {
                   2374:        char    *s, *copy, *next;
1.351     nicm     2375:        uint64_t flag;
                   2376:        int      not;
1.337     nicm     2377:
                   2378:        s = copy = xstrdup (flags);
                   2379:        while ((next = strsep(&s, ",")) != NULL) {
                   2380:                not = (*next == '!');
                   2381:                if (not)
                   2382:                        next++;
                   2383:
1.355     nicm     2384:                if (c->flags & CLIENT_CONTROL)
                   2385:                        flag = server_client_control_flags(c, next);
                   2386:                else
                   2387:                        flag = 0;
1.350     nicm     2388:                if (strcmp(next, "read-only") == 0)
1.337     nicm     2389:                        flag = CLIENT_READONLY;
                   2390:                else if (strcmp(next, "ignore-size") == 0)
                   2391:                        flag = CLIENT_IGNORESIZE;
1.341     nicm     2392:                else if (strcmp(next, "active-pane") == 0)
                   2393:                        flag = CLIENT_ACTIVEPANE;
1.350     nicm     2394:                if (flag == 0)
1.337     nicm     2395:                        continue;
                   2396:
                   2397:                log_debug("client %s set flag %s", c->name, next);
                   2398:                if (not)
                   2399:                        c->flags &= ~flag;
                   2400:                else
                   2401:                        c->flags |= flag;
1.346     nicm     2402:                if (flag == CLIENT_CONTROL_NOOUTPUT)
1.352     nicm     2403:                        control_reset_offsets(c);
1.337     nicm     2404:        }
                   2405:        free(copy);
                   2406: }
                   2407:
1.340     nicm     2408: /* Get client flags. This is only flags useful to show to users. */
1.337     nicm     2409: const char *
                   2410: server_client_get_flags(struct client *c)
                   2411: {
1.355     nicm     2412:        static char     s[256];
                   2413:        char            tmp[32];
1.337     nicm     2414:
                   2415:        *s = '\0';
                   2416:        if (c->flags & CLIENT_ATTACHED)
                   2417:                strlcat(s, "attached,", sizeof s);
                   2418:        if (c->flags & CLIENT_CONTROL)
                   2419:                strlcat(s, "control-mode,", sizeof s);
                   2420:        if (c->flags & CLIENT_IGNORESIZE)
                   2421:                strlcat(s, "ignore-size,", sizeof s);
                   2422:        if (c->flags & CLIENT_CONTROL_NOOUTPUT)
                   2423:                strlcat(s, "no-output,", sizeof s);
1.355     nicm     2424:        if (c->flags & CLIENT_CONTROL_PAUSEAFTER) {
                   2425:                xsnprintf(tmp, sizeof tmp, "pause-after=%u,",
                   2426:                    c->pause_age / 1000);
                   2427:                strlcat(s, tmp, sizeof s);
                   2428:        }
1.337     nicm     2429:        if (c->flags & CLIENT_READONLY)
                   2430:                strlcat(s, "read-only,", sizeof s);
1.341     nicm     2431:        if (c->flags & CLIENT_ACTIVEPANE)
                   2432:                strlcat(s, "active-pane,", sizeof s);
1.337     nicm     2433:        if (c->flags & CLIENT_SUSPENDED)
                   2434:                strlcat(s, "suspended,", sizeof s);
                   2435:        if (c->flags & CLIENT_UTF8)
                   2436:                strlcat(s, "UTF-8,", sizeof s);
                   2437:        if (*s != '\0')
                   2438:                s[strlen(s) - 1] = '\0';
                   2439:        return (s);
1.341     nicm     2440: }
                   2441:
                   2442: /* Get client window. */
                   2443: static struct client_window *
                   2444: server_client_get_client_window(struct client *c, u_int id)
                   2445: {
                   2446:        struct client_window    cw = { .window = id };
                   2447:
                   2448:        return (RB_FIND(client_windows, &c->windows, &cw));
                   2449: }
                   2450:
                   2451: /* Get client active pane. */
                   2452: struct window_pane *
                   2453: server_client_get_pane(struct client *c)
                   2454: {
                   2455:        struct session          *s = c->session;
                   2456:        struct client_window    *cw;
                   2457:
                   2458:        if (s == NULL)
                   2459:                return (NULL);
                   2460:
                   2461:        if (~c->flags & CLIENT_ACTIVEPANE)
                   2462:                return (s->curw->window->active);
                   2463:        cw = server_client_get_client_window(c, s->curw->window->id);
                   2464:        if (cw == NULL)
                   2465:                return (s->curw->window->active);
                   2466:        return (cw->pane);
                   2467: }
                   2468:
                   2469: /* Set client active pane. */
                   2470: void
                   2471: server_client_set_pane(struct client *c, struct window_pane *wp)
                   2472: {
                   2473:        struct session          *s = c->session;
                   2474:        struct client_window    *cw;
                   2475:
                   2476:        if (s == NULL)
                   2477:                return;
                   2478:
                   2479:        cw = server_client_get_client_window(c, s->curw->window->id);
                   2480:        if (cw == NULL) {
                   2481:                cw = xcalloc(1, sizeof *cw);
                   2482:                cw->window = s->curw->window->id;
                   2483:                RB_INSERT(client_windows, &c->windows, cw);
                   2484:        }
                   2485:        cw->pane = wp;
                   2486:        log_debug("%s pane now %%%u", c->name, wp->id);
                   2487: }
                   2488:
                   2489: /* Remove pane from client lists. */
                   2490: void
                   2491: server_client_remove_pane(struct window_pane *wp)
                   2492: {
                   2493:        struct client           *c;
                   2494:        struct window           *w = wp->window;
                   2495:        struct client_window    *cw;
                   2496:
                   2497:        TAILQ_FOREACH(c, &clients, entry) {
                   2498:                cw = server_client_get_client_window(c, w->id);
                   2499:                if (cw != NULL && cw->pane == wp) {
                   2500:                        RB_REMOVE(client_windows, &c->windows, cw);
                   2501:                        free(cw);
                   2502:                }
                   2503:        }
1.1       nicm     2504: }