mirror of
https://github.com/tmux/tmux.git
synced 2024-10-31 14:48:56 +00:00
1892 lines
45 KiB
C
1892 lines
45 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/uio.h>
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#include <errno.h>
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#include <event.h>
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#include <fcntl.h>
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#include <imsg.h>
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#include <paths.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "tmux.h"
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static void server_client_free(int, short, void *);
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static void server_client_check_focus(struct window_pane *);
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static void server_client_check_resize(struct window_pane *);
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static key_code server_client_check_mouse(struct client *);
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static void server_client_repeat_timer(int, short, void *);
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static void server_client_click_timer(int, short, void *);
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static void server_client_check_exit(struct client *);
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static void server_client_check_redraw(struct client *);
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static void server_client_set_title(struct client *);
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static void server_client_reset_state(struct client *);
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static int server_client_assume_paste(struct session *);
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static void server_client_clear_identify(struct client *,
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struct window_pane *);
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static void server_client_dispatch(struct imsg *, void *);
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static void server_client_dispatch_command(struct client *, struct imsg *);
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static void server_client_dispatch_identify(struct client *, struct imsg *);
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static void server_client_dispatch_shell(struct client *);
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/* Number of attached clients. */
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u_int
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server_client_how_many(void)
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{
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struct client *c;
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u_int n;
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n = 0;
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TAILQ_FOREACH(c, &clients, entry) {
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if (c->session != NULL && (~c->flags & CLIENT_DETACHING))
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n++;
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}
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return (n);
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}
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/* Identify mode callback. */
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static void
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server_client_callback_identify(__unused int fd, __unused short events,
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void *data)
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{
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server_client_clear_identify(data, NULL);
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}
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/* Set identify mode on client. */
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void
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server_client_set_identify(struct client *c, u_int delay)
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{
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struct timeval tv;
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tv.tv_sec = delay / 1000;
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tv.tv_usec = (delay % 1000) * 1000L;
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if (event_initialized(&c->identify_timer))
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evtimer_del(&c->identify_timer);
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evtimer_set(&c->identify_timer, server_client_callback_identify, c);
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if (delay != 0)
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evtimer_add(&c->identify_timer, &tv);
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c->flags |= CLIENT_IDENTIFY;
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c->tty.flags |= (TTY_FREEZE|TTY_NOCURSOR);
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server_redraw_client(c);
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}
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/* Clear identify mode on client. */
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static void
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server_client_clear_identify(struct client *c, struct window_pane *wp)
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{
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if (~c->flags & CLIENT_IDENTIFY)
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return;
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c->flags &= ~CLIENT_IDENTIFY;
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if (c->identify_callback != NULL)
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c->identify_callback(c, wp);
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c->tty.flags &= ~(TTY_FREEZE|TTY_NOCURSOR);
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server_redraw_client(c);
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}
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/* Check if this client is inside this server. */
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int
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server_client_check_nested(struct client *c)
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{
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struct environ_entry *envent;
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struct window_pane *wp;
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envent = environ_find(c->environ, "TMUX");
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if (envent == NULL || *envent->value == '\0')
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return (0);
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RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
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if (strcmp(wp->tty, c->ttyname) == 0)
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return (1);
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}
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return (0);
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}
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/* Set client key table. */
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void
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server_client_set_key_table(struct client *c, const char *name)
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{
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if (name == NULL)
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name = server_client_get_key_table(c);
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key_bindings_unref_table(c->keytable);
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c->keytable = key_bindings_get_table(name, 1);
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c->keytable->references++;
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}
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/* Get default key table. */
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const char *
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server_client_get_key_table(struct client *c)
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{
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struct session *s = c->session;
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const char *name;
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if (s == NULL)
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return ("root");
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name = options_get_string(s->options, "key-table");
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if (*name == '\0')
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return ("root");
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return (name);
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}
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/* Is this table the default key table? */
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static int
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server_client_is_default_key_table(struct client *c, struct key_table *table)
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{
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return (strcmp(table->name, server_client_get_key_table(c)) == 0);
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}
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/* Create a new client. */
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struct client *
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server_client_create(int fd)
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{
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struct client *c;
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setblocking(fd, 0);
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c = xcalloc(1, sizeof *c);
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c->references = 1;
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c->peer = proc_add_peer(server_proc, fd, server_client_dispatch, c);
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if (gettimeofday(&c->creation_time, NULL) != 0)
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fatal("gettimeofday failed");
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memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
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c->environ = environ_create();
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c->fd = -1;
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c->cwd = NULL;
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TAILQ_INIT(&c->queue);
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c->stdin_data = evbuffer_new();
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c->stdout_data = evbuffer_new();
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c->stderr_data = evbuffer_new();
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c->tty.fd = -1;
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c->title = NULL;
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c->session = NULL;
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c->last_session = NULL;
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c->tty.sx = 80;
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c->tty.sy = 24;
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screen_init(&c->status.status, c->tty.sx, 1, 0);
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c->message_string = NULL;
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TAILQ_INIT(&c->message_log);
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c->prompt_string = NULL;
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c->prompt_buffer = NULL;
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c->prompt_index = 0;
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c->flags |= CLIENT_FOCUSED;
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c->keytable = key_bindings_get_table("root", 1);
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c->keytable->references++;
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evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
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evtimer_set(&c->click_timer, server_client_click_timer, c);
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TAILQ_INSERT_TAIL(&clients, c, entry);
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log_debug("new client %p", c);
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return (c);
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}
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/* Open client terminal if needed. */
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int
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server_client_open(struct client *c, char **cause)
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{
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if (c->flags & CLIENT_CONTROL)
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return (0);
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if (strcmp(c->ttyname, "/dev/tty") == 0) {
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*cause = xstrdup("can't use /dev/tty");
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return (-1);
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}
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if (!(c->flags & CLIENT_TERMINAL)) {
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*cause = xstrdup("not a terminal");
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return (-1);
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}
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if (tty_open(&c->tty, cause) != 0)
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return (-1);
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return (0);
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}
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/* Lost a client. */
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void
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server_client_lost(struct client *c)
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{
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struct message_entry *msg, *msg1;
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c->flags |= CLIENT_DEAD;
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server_client_clear_identify(c, NULL);
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status_prompt_clear(c);
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status_message_clear(c);
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if (c->stdin_callback != NULL)
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c->stdin_callback(c, 1, c->stdin_callback_data);
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TAILQ_REMOVE(&clients, c, entry);
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log_debug("lost client %p", c);
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/*
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* If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
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* and tty_free might close an unrelated fd.
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*/
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if (c->flags & CLIENT_TERMINAL)
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tty_free(&c->tty);
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free(c->ttyname);
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free(c->term);
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evbuffer_free(c->stdin_data);
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evbuffer_free(c->stdout_data);
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if (c->stderr_data != c->stdout_data)
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evbuffer_free(c->stderr_data);
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if (event_initialized(&c->status.timer))
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evtimer_del(&c->status.timer);
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screen_free(&c->status.status);
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if (c->status.old_status != NULL) {
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screen_free(c->status.old_status);
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free(c->status.old_status);
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}
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free(c->title);
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free((void *)c->cwd);
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evtimer_del(&c->repeat_timer);
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evtimer_del(&c->click_timer);
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key_bindings_unref_table(c->keytable);
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if (event_initialized(&c->identify_timer))
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evtimer_del(&c->identify_timer);
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free(c->message_string);
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if (event_initialized(&c->message_timer))
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evtimer_del(&c->message_timer);
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TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
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free(msg->msg);
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TAILQ_REMOVE(&c->message_log, msg, entry);
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free(msg);
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}
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free(c->prompt_string);
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free(c->prompt_buffer);
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format_lost_client(c);
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environ_free(c->environ);
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proc_remove_peer(c->peer);
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c->peer = NULL;
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server_client_unref(c);
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server_add_accept(0); /* may be more file descriptors now */
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recalculate_sizes();
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server_check_unattached();
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server_update_socket();
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}
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/* Remove reference from a client. */
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void
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server_client_unref(struct client *c)
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{
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log_debug("unref client %p (%d references)", c, c->references);
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c->references--;
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if (c->references == 0)
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event_once(-1, EV_TIMEOUT, server_client_free, c, NULL);
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}
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/* Free dead client. */
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static void
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server_client_free(__unused int fd, __unused short events, void *arg)
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{
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struct client *c = arg;
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log_debug("free client %p (%d references)", c, c->references);
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if (!TAILQ_EMPTY(&c->queue))
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fatalx("queue not empty");
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if (c->references == 0) {
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free((void *)c->name);
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free(c);
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}
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}
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/* Suspend a client. */
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void
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server_client_suspend(struct client *c)
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{
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struct session *s = c->session;
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if (s == NULL || (c->flags & CLIENT_DETACHING))
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return;
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tty_stop_tty(&c->tty);
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c->flags |= CLIENT_SUSPENDED;
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proc_send(c->peer, MSG_SUSPEND, -1, NULL, 0);
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}
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/* Detach a client. */
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void
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server_client_detach(struct client *c, enum msgtype msgtype)
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{
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struct session *s = c->session;
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if (s == NULL || (c->flags & CLIENT_DETACHING))
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return;
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c->flags |= CLIENT_DETACHING;
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notify_client("client-detached", c);
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proc_send(c->peer, msgtype, -1, s->name, strlen(s->name) + 1);
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}
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/* Execute command to replace a client. */
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void
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server_client_exec(struct client *c, const char *cmd)
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{
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struct session *s = c->session;
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char *msg;
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const char *shell;
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size_t cmdsize, shellsize;
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if (*cmd == '\0')
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return;
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cmdsize = strlen(cmd) + 1;
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if (s != NULL)
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shell = options_get_string(s->options, "default-shell");
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else
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shell = options_get_string(global_s_options, "default-shell");
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shellsize = strlen(shell) + 1;
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msg = xmalloc(cmdsize + shellsize);
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memcpy(msg, cmd, cmdsize);
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memcpy(msg + cmdsize, shell, shellsize);
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proc_send(c->peer, MSG_EXEC, -1, msg, cmdsize + shellsize);
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free(msg);
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}
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/* Check for mouse keys. */
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static key_code
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server_client_check_mouse(struct client *c)
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{
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struct session *s = c->session;
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struct mouse_event *m = &c->tty.mouse;
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struct window *w;
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struct window_pane *wp;
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u_int x, y, b;
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int flag;
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key_code key;
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struct timeval tv;
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enum { NOTYPE, MOVE, DOWN, UP, DRAG, WHEEL, DOUBLE, TRIPLE } type;
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enum { NOWHERE, PANE, STATUS, BORDER } where;
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type = NOTYPE;
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where = NOWHERE;
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log_debug("mouse %02x at %u,%u (last %u,%u) (%d)", m->b, m->x, m->y,
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m->lx, m->ly, c->tty.mouse_drag_flag);
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/* What type of event is this? */
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if ((m->sgr_type != ' ' &&
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MOUSE_DRAG(m->sgr_b) &&
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MOUSE_BUTTONS(m->sgr_b) == 3) ||
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(m->sgr_type == ' ' &&
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MOUSE_DRAG(m->b) &&
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MOUSE_BUTTONS(m->b) == 3 &&
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MOUSE_BUTTONS(m->lb) == 3)) {
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type = MOVE;
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x = m->x, y = m->y, b = 0;
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log_debug("move at %u,%u", x, y);
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} else if (MOUSE_DRAG(m->b)) {
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type = DRAG;
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if (c->tty.mouse_drag_flag) {
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x = m->x, y = m->y, b = m->b;
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log_debug("drag update at %u,%u", x, y);
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} else {
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x = m->lx, y = m->ly, b = m->lb;
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log_debug("drag start at %u,%u", x, y);
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}
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} else if (MOUSE_WHEEL(m->b)) {
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type = WHEEL;
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x = m->x, y = m->y, b = m->b;
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log_debug("wheel at %u,%u", x, y);
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} else if (MOUSE_RELEASE(m->b)) {
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type = UP;
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x = m->x, y = m->y, b = m->lb;
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log_debug("up at %u,%u", x, y);
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} else {
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if (c->flags & CLIENT_DOUBLECLICK) {
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evtimer_del(&c->click_timer);
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c->flags &= ~CLIENT_DOUBLECLICK;
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if (m->b == c->click_button) {
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type = DOUBLE;
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x = m->x, y = m->y, b = m->b;
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log_debug("double-click at %u,%u", x, y);
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flag = CLIENT_TRIPLECLICK;
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goto add_timer;
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}
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} else if (c->flags & CLIENT_TRIPLECLICK) {
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evtimer_del(&c->click_timer);
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c->flags &= ~CLIENT_TRIPLECLICK;
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if (m->b == c->click_button) {
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type = TRIPLE;
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x = m->x, y = m->y, b = m->b;
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log_debug("triple-click at %u,%u", x, y);
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goto have_event;
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}
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}
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type = DOWN;
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x = m->x, y = m->y, b = m->b;
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log_debug("down at %u,%u", x, y);
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flag = CLIENT_DOUBLECLICK;
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add_timer:
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if (KEYC_CLICK_TIMEOUT != 0) {
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c->flags |= flag;
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c->click_button = m->b;
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tv.tv_sec = KEYC_CLICK_TIMEOUT / 1000;
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tv.tv_usec = (KEYC_CLICK_TIMEOUT % 1000) * 1000L;
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evtimer_del(&c->click_timer);
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evtimer_add(&c->click_timer, &tv);
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}
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}
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have_event:
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if (type == NOTYPE)
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return (KEYC_UNKNOWN);
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|
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/* Always save the session. */
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m->s = s->id;
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/* Is this on the status line? */
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m->statusat = status_at_line(c);
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if (m->statusat != -1 && y == (u_int)m->statusat) {
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w = status_get_window_at(c, x);
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if (w == NULL)
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return (KEYC_UNKNOWN);
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m->w = w->id;
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where = STATUS;
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} else
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m->w = -1;
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/* Not on status line. Adjust position and check for border or pane. */
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if (where == NOWHERE) {
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if (m->statusat == 0 && y > 0)
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y--;
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else if (m->statusat > 0 && y >= (u_int)m->statusat)
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y = m->statusat - 1;
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|
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TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
|
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if ((wp->xoff + wp->sx == x &&
|
|
wp->yoff <= 1 + y &&
|
|
wp->yoff + wp->sy >= y) ||
|
|
(wp->yoff + wp->sy == y &&
|
|
wp->xoff <= 1 + x &&
|
|
wp->xoff + wp->sx >= x))
|
|
break;
|
|
}
|
|
if (wp != NULL)
|
|
where = BORDER;
|
|
else {
|
|
wp = window_get_active_at(s->curw->window, x, y);
|
|
if (wp != NULL) {
|
|
where = PANE;
|
|
log_debug("mouse at %u,%u is on pane %%%u",
|
|
x, y, wp->id);
|
|
}
|
|
}
|
|
if (where == NOWHERE)
|
|
return (KEYC_UNKNOWN);
|
|
m->wp = wp->id;
|
|
m->w = wp->window->id;
|
|
} else
|
|
m->wp = -1;
|
|
|
|
/* Stop dragging if needed. */
|
|
if (type != DRAG && type != WHEEL && c->tty.mouse_drag_flag) {
|
|
if (c->tty.mouse_drag_release != NULL)
|
|
c->tty.mouse_drag_release(c, m);
|
|
|
|
c->tty.mouse_drag_update = NULL;
|
|
c->tty.mouse_drag_release = NULL;
|
|
|
|
/*
|
|
* End a mouse drag by passing a MouseDragEnd key corresponding
|
|
* to the button that started the drag.
|
|
*/
|
|
switch (c->tty.mouse_drag_flag) {
|
|
case 1:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDRAGEND1_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDRAGEND1_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDRAGEND1_BORDER;
|
|
break;
|
|
case 2:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDRAGEND2_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDRAGEND2_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDRAGEND2_BORDER;
|
|
break;
|
|
case 3:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDRAGEND3_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDRAGEND3_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDRAGEND3_BORDER;
|
|
break;
|
|
default:
|
|
key = KEYC_MOUSE;
|
|
break;
|
|
}
|
|
c->tty.mouse_drag_flag = 0;
|
|
|
|
return (key);
|
|
}
|
|
|
|
/* Convert to a key binding. */
|
|
key = KEYC_UNKNOWN;
|
|
switch (type) {
|
|
case NOTYPE:
|
|
break;
|
|
case MOVE:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEMOVE_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEMOVE_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEMOVE_BORDER;
|
|
break;
|
|
case DRAG:
|
|
if (c->tty.mouse_drag_update != NULL)
|
|
key = KEYC_DRAGGING;
|
|
else {
|
|
switch (MOUSE_BUTTONS(b)) {
|
|
case 0:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDRAG1_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDRAG1_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDRAG1_BORDER;
|
|
break;
|
|
case 1:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDRAG2_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDRAG2_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDRAG2_BORDER;
|
|
break;
|
|
case 2:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDRAG3_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDRAG3_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDRAG3_BORDER;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Begin a drag by setting the flag to a non-zero value that
|
|
* corresponds to the mouse button in use.
|
|
*/
|
|
c->tty.mouse_drag_flag = MOUSE_BUTTONS(b) + 1;
|
|
break;
|
|
case WHEEL:
|
|
if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) {
|
|
if (where == PANE)
|
|
key = KEYC_WHEELUP_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_WHEELUP_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_WHEELUP_BORDER;
|
|
} else {
|
|
if (where == PANE)
|
|
key = KEYC_WHEELDOWN_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_WHEELDOWN_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_WHEELDOWN_BORDER;
|
|
}
|
|
break;
|
|
case UP:
|
|
switch (MOUSE_BUTTONS(b)) {
|
|
case 0:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEUP1_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEUP1_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEUP1_BORDER;
|
|
break;
|
|
case 1:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEUP2_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEUP2_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEUP2_BORDER;
|
|
break;
|
|
case 2:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEUP3_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEUP3_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEUP3_BORDER;
|
|
break;
|
|
}
|
|
break;
|
|
case DOWN:
|
|
switch (MOUSE_BUTTONS(b)) {
|
|
case 0:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDOWN1_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDOWN1_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDOWN1_BORDER;
|
|
break;
|
|
case 1:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDOWN2_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDOWN2_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDOWN2_BORDER;
|
|
break;
|
|
case 2:
|
|
if (where == PANE)
|
|
key = KEYC_MOUSEDOWN3_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_MOUSEDOWN3_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_MOUSEDOWN3_BORDER;
|
|
break;
|
|
}
|
|
break;
|
|
case DOUBLE:
|
|
switch (MOUSE_BUTTONS(b)) {
|
|
case 0:
|
|
if (where == PANE)
|
|
key = KEYC_DOUBLECLICK1_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_DOUBLECLICK1_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_DOUBLECLICK1_BORDER;
|
|
break;
|
|
case 1:
|
|
if (where == PANE)
|
|
key = KEYC_DOUBLECLICK2_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_DOUBLECLICK2_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_DOUBLECLICK2_BORDER;
|
|
break;
|
|
case 2:
|
|
if (where == PANE)
|
|
key = KEYC_DOUBLECLICK3_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_DOUBLECLICK3_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_DOUBLECLICK3_BORDER;
|
|
break;
|
|
}
|
|
break;
|
|
case TRIPLE:
|
|
switch (MOUSE_BUTTONS(b)) {
|
|
case 0:
|
|
if (where == PANE)
|
|
key = KEYC_TRIPLECLICK1_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_TRIPLECLICK1_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_TRIPLECLICK1_BORDER;
|
|
break;
|
|
case 1:
|
|
if (where == PANE)
|
|
key = KEYC_TRIPLECLICK2_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_TRIPLECLICK2_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_TRIPLECLICK2_BORDER;
|
|
break;
|
|
case 2:
|
|
if (where == PANE)
|
|
key = KEYC_TRIPLECLICK3_PANE;
|
|
if (where == STATUS)
|
|
key = KEYC_TRIPLECLICK3_STATUS;
|
|
if (where == BORDER)
|
|
key = KEYC_TRIPLECLICK3_BORDER;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
if (key == KEYC_UNKNOWN)
|
|
return (KEYC_UNKNOWN);
|
|
|
|
/* Apply modifiers if any. */
|
|
if (b & MOUSE_MASK_META)
|
|
key |= KEYC_ESCAPE;
|
|
if (b & MOUSE_MASK_CTRL)
|
|
key |= KEYC_CTRL;
|
|
if (b & MOUSE_MASK_SHIFT)
|
|
key |= KEYC_SHIFT;
|
|
|
|
return (key);
|
|
}
|
|
|
|
/* Is this fast enough to probably be a paste? */
|
|
static int
|
|
server_client_assume_paste(struct session *s)
|
|
{
|
|
struct timeval tv;
|
|
int t;
|
|
|
|
if ((t = options_get_number(s->options, "assume-paste-time")) == 0)
|
|
return (0);
|
|
|
|
timersub(&s->activity_time, &s->last_activity_time, &tv);
|
|
if (tv.tv_sec == 0 && tv.tv_usec < t * 1000) {
|
|
log_debug("session %s pasting (flag %d)", s->name,
|
|
!!(s->flags & SESSION_PASTING));
|
|
if (s->flags & SESSION_PASTING)
|
|
return (1);
|
|
s->flags |= SESSION_PASTING;
|
|
return (0);
|
|
}
|
|
log_debug("session %s not pasting", s->name);
|
|
s->flags &= ~SESSION_PASTING;
|
|
return (0);
|
|
}
|
|
|
|
/* Handle data key input from client. */
|
|
void
|
|
server_client_handle_key(struct client *c, key_code key)
|
|
{
|
|
struct mouse_event *m = &c->tty.mouse;
|
|
struct session *s = c->session;
|
|
struct window *w;
|
|
struct window_pane *wp;
|
|
struct timeval tv;
|
|
struct key_table *table, *first;
|
|
struct key_binding *bd;
|
|
int xtimeout, flags;
|
|
struct cmd_find_state fs;
|
|
key_code key0;
|
|
|
|
/* Check the client is good to accept input. */
|
|
if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
|
|
return;
|
|
w = s->curw->window;
|
|
|
|
/* Update the activity timer. */
|
|
if (gettimeofday(&c->activity_time, NULL) != 0)
|
|
fatal("gettimeofday failed");
|
|
session_update_activity(s, &c->activity_time);
|
|
|
|
/* Number keys jump to pane in identify mode. */
|
|
if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
|
|
if (c->flags & CLIENT_READONLY)
|
|
return;
|
|
window_unzoom(w);
|
|
wp = window_pane_at_index(w, key - '0');
|
|
if (wp != NULL && !window_pane_visible(wp))
|
|
wp = NULL;
|
|
server_client_clear_identify(c, wp);
|
|
return;
|
|
}
|
|
|
|
/* Handle status line. */
|
|
if (!(c->flags & CLIENT_READONLY)) {
|
|
status_message_clear(c);
|
|
server_client_clear_identify(c, NULL);
|
|
}
|
|
if (c->prompt_string != NULL) {
|
|
if (c->flags & CLIENT_READONLY)
|
|
return;
|
|
if (status_prompt_key(c, key) == 0)
|
|
return;
|
|
}
|
|
|
|
/* Check for mouse keys. */
|
|
m->valid = 0;
|
|
if (key == KEYC_MOUSE) {
|
|
if (c->flags & CLIENT_READONLY)
|
|
return;
|
|
key = server_client_check_mouse(c);
|
|
if (key == KEYC_UNKNOWN)
|
|
return;
|
|
|
|
m->valid = 1;
|
|
m->key = key;
|
|
|
|
/*
|
|
* Mouse drag is in progress, so fire the callback (now that
|
|
* the mouse event is valid).
|
|
*/
|
|
if (key == KEYC_DRAGGING) {
|
|
c->tty.mouse_drag_update(c, m);
|
|
return;
|
|
}
|
|
} else
|
|
m->valid = 0;
|
|
|
|
/* Find affected pane. */
|
|
if (!KEYC_IS_MOUSE(key) || cmd_find_from_mouse(&fs, m, 0) != 0)
|
|
cmd_find_from_session(&fs, s, 0);
|
|
wp = fs.wp;
|
|
|
|
/* Forward mouse keys if disabled. */
|
|
if (KEYC_IS_MOUSE(key) && !options_get_number(s->options, "mouse"))
|
|
goto forward_key;
|
|
|
|
/* Treat everything as a regular key when pasting is detected. */
|
|
if (!KEYC_IS_MOUSE(key) && server_client_assume_paste(s))
|
|
goto forward_key;
|
|
|
|
/*
|
|
* Work out the current key table. If the pane is in a mode, use
|
|
* the mode table instead of the default key table.
|
|
*/
|
|
if (server_client_is_default_key_table(c, c->keytable) &&
|
|
wp != NULL &&
|
|
wp->mode != NULL &&
|
|
wp->mode->key_table != NULL)
|
|
table = key_bindings_get_table(wp->mode->key_table(wp), 1);
|
|
else
|
|
table = c->keytable;
|
|
first = table;
|
|
|
|
table_changed:
|
|
/*
|
|
* The prefix always takes precedence and forces a switch to the prefix
|
|
* table, unless we are already there.
|
|
*/
|
|
key0 = (key & ~KEYC_XTERM);
|
|
if ((key0 == (key_code)options_get_number(s->options, "prefix") ||
|
|
key0 == (key_code)options_get_number(s->options, "prefix2")) &&
|
|
strcmp(table->name, "prefix") != 0) {
|
|
server_client_set_key_table(c, "prefix");
|
|
server_status_client(c);
|
|
return;
|
|
}
|
|
flags = c->flags;
|
|
|
|
/* Log key table. */
|
|
if (wp == NULL)
|
|
log_debug("key table %s (no pane)", table->name);
|
|
else
|
|
log_debug("key table %s (pane %%%u)", table->name, wp->id);
|
|
if (c->flags & CLIENT_REPEAT)
|
|
log_debug("currently repeating");
|
|
|
|
try_again:
|
|
/* Try to see if there is a key binding in the current table. */
|
|
bd = key_bindings_get(table, key0);
|
|
if (bd != NULL) {
|
|
/*
|
|
* Key was matched in this table. If currently repeating but a
|
|
* non-repeating binding was found, stop repeating and try
|
|
* again in the root table.
|
|
*/
|
|
if ((c->flags & CLIENT_REPEAT) &&
|
|
(~bd->flags & KEY_BINDING_REPEAT)) {
|
|
server_client_set_key_table(c, NULL);
|
|
c->flags &= ~CLIENT_REPEAT;
|
|
server_status_client(c);
|
|
table = c->keytable;
|
|
goto table_changed;
|
|
}
|
|
log_debug("found in key table %s", table->name);
|
|
|
|
/*
|
|
* Take a reference to this table to make sure the key binding
|
|
* doesn't disappear.
|
|
*/
|
|
table->references++;
|
|
|
|
/*
|
|
* If this is a repeating key, start the timer. Otherwise reset
|
|
* the client back to the root table.
|
|
*/
|
|
xtimeout = options_get_number(s->options, "repeat-time");
|
|
if (xtimeout != 0 && (bd->flags & KEY_BINDING_REPEAT)) {
|
|
c->flags |= CLIENT_REPEAT;
|
|
|
|
tv.tv_sec = xtimeout / 1000;
|
|
tv.tv_usec = (xtimeout % 1000) * 1000L;
|
|
evtimer_del(&c->repeat_timer);
|
|
evtimer_add(&c->repeat_timer, &tv);
|
|
} else {
|
|
c->flags &= ~CLIENT_REPEAT;
|
|
server_client_set_key_table(c, NULL);
|
|
}
|
|
server_status_client(c);
|
|
|
|
/* Execute the key binding. */
|
|
key_bindings_dispatch(bd, NULL, c, m, &fs);
|
|
key_bindings_unref_table(table);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* No match, try the ANY key.
|
|
*/
|
|
if (key0 != KEYC_ANY) {
|
|
key0 = KEYC_ANY;
|
|
goto try_again;
|
|
}
|
|
|
|
/*
|
|
* No match in this table. If not in the root table or if repeating,
|
|
* switch the client back to the root table and try again.
|
|
*/
|
|
log_debug("not found in key table %s", table->name);
|
|
if (!server_client_is_default_key_table(c, table) ||
|
|
(c->flags & CLIENT_REPEAT)) {
|
|
server_client_set_key_table(c, NULL);
|
|
c->flags &= ~CLIENT_REPEAT;
|
|
server_status_client(c);
|
|
table = c->keytable;
|
|
goto table_changed;
|
|
}
|
|
|
|
/*
|
|
* No match in the root table either. If this wasn't the first table
|
|
* tried, don't pass the key to the pane.
|
|
*/
|
|
if (first != table && (~flags & CLIENT_REPEAT)) {
|
|
server_client_set_key_table(c, NULL);
|
|
server_status_client(c);
|
|
return;
|
|
}
|
|
|
|
forward_key:
|
|
if (c->flags & CLIENT_READONLY)
|
|
return;
|
|
if (wp != NULL)
|
|
window_pane_key(wp, c, s, key, m);
|
|
}
|
|
|
|
/* Client functions that need to happen every loop. */
|
|
void
|
|
server_client_loop(void)
|
|
{
|
|
struct client *c;
|
|
struct window *w;
|
|
struct window_pane *wp;
|
|
int focus;
|
|
|
|
TAILQ_FOREACH(c, &clients, entry) {
|
|
server_client_check_exit(c);
|
|
if (c->session != NULL) {
|
|
server_client_check_redraw(c);
|
|
server_client_reset_state(c);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Any windows will have been redrawn as part of clients, so clear
|
|
* their flags now. Also check pane focus and resize.
|
|
*/
|
|
focus = options_get_number(global_options, "focus-events");
|
|
RB_FOREACH(w, windows, &windows) {
|
|
TAILQ_FOREACH(wp, &w->panes, entry) {
|
|
if (wp->fd != -1) {
|
|
if (focus)
|
|
server_client_check_focus(wp);
|
|
server_client_check_resize(wp);
|
|
}
|
|
wp->flags &= ~PANE_REDRAW;
|
|
}
|
|
check_window_name(w);
|
|
}
|
|
}
|
|
|
|
/* Check if we need to force a resize. */
|
|
static int
|
|
server_client_resize_force(struct window_pane *wp)
|
|
{
|
|
struct timeval tv = { .tv_usec = 100000 };
|
|
struct winsize ws;
|
|
|
|
/*
|
|
* If we are resizing to the same size as when we entered the loop
|
|
* (that is, to the same size the application currently thinks it is),
|
|
* tmux may have gone through several resizes internally and thrown
|
|
* away parts of the screen. So we need the application to actually
|
|
* redraw even though its final size has not changed.
|
|
*/
|
|
|
|
if (wp->flags & PANE_RESIZEFORCE) {
|
|
wp->flags &= ~PANE_RESIZEFORCE;
|
|
return (0);
|
|
}
|
|
|
|
if (wp->sx != wp->osx ||
|
|
wp->sy != wp->osy ||
|
|
wp->sx <= 1 ||
|
|
wp->sy <= 1)
|
|
return (0);
|
|
|
|
memset(&ws, 0, sizeof ws);
|
|
ws.ws_col = wp->sx;
|
|
ws.ws_row = wp->sy - 1;
|
|
if (wp->fd != -1 && ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
|
|
fatal("ioctl failed");
|
|
log_debug("%s: %%%u forcing resize", __func__, wp->id);
|
|
|
|
evtimer_add(&wp->resize_timer, &tv);
|
|
wp->flags |= PANE_RESIZEFORCE;
|
|
return (1);
|
|
}
|
|
|
|
/* Resize timer event. */
|
|
static void
|
|
server_client_resize_event(__unused int fd, __unused short events, void *data)
|
|
{
|
|
struct window_pane *wp = data;
|
|
struct winsize ws;
|
|
|
|
evtimer_del(&wp->resize_timer);
|
|
|
|
if (!(wp->flags & PANE_RESIZE))
|
|
return;
|
|
if (server_client_resize_force(wp))
|
|
return;
|
|
|
|
memset(&ws, 0, sizeof ws);
|
|
ws.ws_col = wp->sx;
|
|
ws.ws_row = wp->sy;
|
|
if (wp->fd != -1 && ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
|
|
fatal("ioctl failed");
|
|
log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, wp->sx, wp->sy);
|
|
|
|
wp->flags &= ~PANE_RESIZE;
|
|
|
|
wp->osx = wp->sx;
|
|
wp->osy = wp->sy;
|
|
}
|
|
|
|
/* Check if pane should be resized. */
|
|
static void
|
|
server_client_check_resize(struct window_pane *wp)
|
|
{
|
|
struct timeval tv = { .tv_usec = 250000 };
|
|
|
|
if (!(wp->flags & PANE_RESIZE))
|
|
return;
|
|
log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, wp->sx, wp->sy);
|
|
|
|
if (!event_initialized(&wp->resize_timer))
|
|
evtimer_set(&wp->resize_timer, server_client_resize_event, wp);
|
|
|
|
/*
|
|
* The first resize should happen immediately, so if the timer is not
|
|
* running, do it now.
|
|
*/
|
|
if (!evtimer_pending(&wp->resize_timer, NULL))
|
|
server_client_resize_event(-1, 0, wp);
|
|
|
|
/*
|
|
* If the pane is in the alternate screen, let the timer expire and
|
|
* resize to give the application a chance to redraw. If not, keep
|
|
* pushing the timer back.
|
|
*/
|
|
if (wp->saved_grid != NULL && evtimer_pending(&wp->resize_timer, NULL))
|
|
return;
|
|
evtimer_del(&wp->resize_timer);
|
|
evtimer_add(&wp->resize_timer, &tv);
|
|
}
|
|
|
|
/* Check whether pane should be focused. */
|
|
static void
|
|
server_client_check_focus(struct window_pane *wp)
|
|
{
|
|
struct client *c;
|
|
int push;
|
|
|
|
/* Do we need to push the focus state? */
|
|
push = wp->flags & PANE_FOCUSPUSH;
|
|
wp->flags &= ~PANE_FOCUSPUSH;
|
|
|
|
/* If we're not the active pane in our window, we're not focused. */
|
|
if (wp->window->active != wp)
|
|
goto not_focused;
|
|
|
|
/* If we're in a mode, we're not focused. */
|
|
if (wp->screen != &wp->base)
|
|
goto not_focused;
|
|
|
|
/*
|
|
* If our window is the current window in any focused clients with an
|
|
* attached session, we're focused.
|
|
*/
|
|
TAILQ_FOREACH(c, &clients, entry) {
|
|
if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
|
|
continue;
|
|
if (c->session->flags & SESSION_UNATTACHED)
|
|
continue;
|
|
|
|
if (c->session->curw->window == wp->window)
|
|
goto focused;
|
|
}
|
|
|
|
not_focused:
|
|
if (push || (wp->flags & PANE_FOCUSED)) {
|
|
if (wp->base.mode & MODE_FOCUSON)
|
|
bufferevent_write(wp->event, "\033[O", 3);
|
|
notify_pane("pane-focus-out", wp);
|
|
}
|
|
wp->flags &= ~PANE_FOCUSED;
|
|
return;
|
|
|
|
focused:
|
|
if (push || !(wp->flags & PANE_FOCUSED)) {
|
|
if (wp->base.mode & MODE_FOCUSON)
|
|
bufferevent_write(wp->event, "\033[I", 3);
|
|
notify_pane("pane-focus-in", wp);
|
|
}
|
|
wp->flags |= PANE_FOCUSED;
|
|
}
|
|
|
|
/*
|
|
* Update cursor position and mode settings. The scroll region and attributes
|
|
* are cleared when idle (waiting for an event) as this is the most likely time
|
|
* a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
|
|
* compromise between excessive resets and likelihood of an interrupt.
|
|
*
|
|
* tty_region/tty_reset/tty_update_mode already take care of not resetting
|
|
* things that are already in their default state.
|
|
*/
|
|
static void
|
|
server_client_reset_state(struct client *c)
|
|
{
|
|
struct window *w = c->session->curw->window;
|
|
struct window_pane *wp = w->active, *loop;
|
|
struct screen *s = wp->screen;
|
|
struct options *oo = c->session->options;
|
|
int lines, mode;
|
|
|
|
if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
|
|
return;
|
|
|
|
tty_region_off(&c->tty);
|
|
tty_margin_off(&c->tty);
|
|
|
|
if (status_at_line(c) != 0)
|
|
lines = 0;
|
|
else
|
|
lines = status_line_size(c->session);
|
|
if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - lines)
|
|
tty_cursor(&c->tty, 0, 0);
|
|
else
|
|
tty_cursor(&c->tty, wp->xoff + s->cx, lines + wp->yoff + s->cy);
|
|
|
|
/*
|
|
* Set mouse mode if requested. To support dragging, always use button
|
|
* mode.
|
|
*/
|
|
mode = s->mode;
|
|
if (options_get_number(oo, "mouse")) {
|
|
mode &= ~ALL_MOUSE_MODES;
|
|
TAILQ_FOREACH(loop, &w->panes, entry) {
|
|
if (loop->screen->mode & MODE_MOUSE_ALL)
|
|
mode |= MODE_MOUSE_ALL;
|
|
}
|
|
if (~mode & MODE_MOUSE_ALL)
|
|
mode |= MODE_MOUSE_BUTTON;
|
|
}
|
|
|
|
/* Clear bracketed paste mode if at the prompt. */
|
|
if (c->prompt_string != NULL)
|
|
mode &= ~MODE_BRACKETPASTE;
|
|
|
|
/* Set the terminal mode and reset attributes. */
|
|
tty_update_mode(&c->tty, mode, s);
|
|
tty_reset(&c->tty);
|
|
}
|
|
|
|
/* Repeat time callback. */
|
|
static void
|
|
server_client_repeat_timer(__unused int fd, __unused short events, void *data)
|
|
{
|
|
struct client *c = data;
|
|
|
|
if (c->flags & CLIENT_REPEAT) {
|
|
server_client_set_key_table(c, NULL);
|
|
c->flags &= ~CLIENT_REPEAT;
|
|
server_status_client(c);
|
|
}
|
|
}
|
|
|
|
/* Double-click callback. */
|
|
static void
|
|
server_client_click_timer(__unused int fd, __unused short events, void *data)
|
|
{
|
|
struct client *c = data;
|
|
|
|
c->flags &= ~(CLIENT_DOUBLECLICK|CLIENT_TRIPLECLICK);
|
|
}
|
|
|
|
/* Check if client should be exited. */
|
|
static void
|
|
server_client_check_exit(struct client *c)
|
|
{
|
|
if (!(c->flags & CLIENT_EXIT))
|
|
return;
|
|
|
|
if (EVBUFFER_LENGTH(c->stdin_data) != 0)
|
|
return;
|
|
if (EVBUFFER_LENGTH(c->stdout_data) != 0)
|
|
return;
|
|
if (EVBUFFER_LENGTH(c->stderr_data) != 0)
|
|
return;
|
|
|
|
if (c->flags & CLIENT_ATTACHED)
|
|
notify_client("client-detached", c);
|
|
proc_send(c->peer, MSG_EXIT, -1, &c->retval, sizeof c->retval);
|
|
c->flags &= ~CLIENT_EXIT;
|
|
}
|
|
|
|
/* Redraw timer callback. */
|
|
static void
|
|
server_client_redraw_timer(__unused int fd, __unused short events,
|
|
__unused void* data)
|
|
{
|
|
log_debug("redraw timer fired");
|
|
}
|
|
|
|
/* Check for client redraws. */
|
|
static void
|
|
server_client_check_redraw(struct client *c)
|
|
{
|
|
struct session *s = c->session;
|
|
struct tty *tty = &c->tty;
|
|
struct window_pane *wp;
|
|
int needed, flags, masked;
|
|
struct timeval tv = { .tv_usec = 1000 };
|
|
static struct event ev;
|
|
size_t left;
|
|
|
|
if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
|
|
return;
|
|
|
|
/*
|
|
* If there is outstanding data, defer the redraw until it has been
|
|
* consumed. We can just add a timer to get out of the event loop and
|
|
* end up back here.
|
|
*/
|
|
needed = 0;
|
|
if (c->flags & CLIENT_REDRAW)
|
|
needed = 1;
|
|
else {
|
|
TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
|
|
if (wp->flags & PANE_REDRAW) {
|
|
needed = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (needed && (left = EVBUFFER_LENGTH(tty->out)) != 0) {
|
|
log_debug("%s: redraw deferred (%zu left)", c->name, left);
|
|
if (!evtimer_initialized(&ev))
|
|
evtimer_set(&ev, server_client_redraw_timer, NULL);
|
|
if (!evtimer_pending(&ev, NULL)) {
|
|
log_debug("redraw timer started");
|
|
evtimer_add(&ev, &tv);
|
|
}
|
|
|
|
/*
|
|
* We may have got here for a single pane redraw, but force a
|
|
* full redraw next time in case other panes have been updated.
|
|
*/
|
|
c->flags |= CLIENT_REDRAW;
|
|
return;
|
|
} else if (needed)
|
|
log_debug("%s: redraw needed", c->name);
|
|
|
|
if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
|
|
if (options_get_number(s->options, "set-titles"))
|
|
server_client_set_title(c);
|
|
screen_redraw_update(c); /* will adjust flags */
|
|
}
|
|
|
|
flags = tty->flags & (TTY_BLOCK|TTY_FREEZE|TTY_NOCURSOR);
|
|
tty->flags = (tty->flags & ~(TTY_BLOCK|TTY_FREEZE)) | TTY_NOCURSOR;
|
|
|
|
if (c->flags & CLIENT_REDRAW) {
|
|
tty_update_mode(tty, tty->mode, NULL);
|
|
screen_redraw_screen(c, 1, 1, 1);
|
|
c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
|
|
} else {
|
|
TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
|
|
if (wp->flags & PANE_REDRAW) {
|
|
tty_update_mode(tty, tty->mode, NULL);
|
|
screen_redraw_pane(c, wp);
|
|
}
|
|
}
|
|
}
|
|
|
|
masked = c->flags & (CLIENT_BORDERS|CLIENT_STATUS);
|
|
if (masked != 0)
|
|
tty_update_mode(tty, tty->mode, NULL);
|
|
if (masked == CLIENT_BORDERS)
|
|
screen_redraw_screen(c, 0, 0, 1);
|
|
else if (masked == CLIENT_STATUS)
|
|
screen_redraw_screen(c, 0, 1, 0);
|
|
else if (masked != 0)
|
|
screen_redraw_screen(c, 0, 1, 1);
|
|
|
|
tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags;
|
|
tty_update_mode(tty, tty->mode, NULL);
|
|
|
|
c->flags &= ~(CLIENT_REDRAW|CLIENT_BORDERS|CLIENT_STATUS|
|
|
CLIENT_STATUSFORCE);
|
|
|
|
if (needed) {
|
|
/*
|
|
* We would have deferred the redraw unless the output buffer
|
|
* was empty, so we can record how many bytes the redraw
|
|
* generated.
|
|
*/
|
|
c->redraw = EVBUFFER_LENGTH(tty->out);
|
|
log_debug("%s: redraw added %zu bytes", c->name, c->redraw);
|
|
}
|
|
}
|
|
|
|
/* Set client title. */
|
|
static void
|
|
server_client_set_title(struct client *c)
|
|
{
|
|
struct session *s = c->session;
|
|
const char *template;
|
|
char *title;
|
|
struct format_tree *ft;
|
|
|
|
template = options_get_string(s->options, "set-titles-string");
|
|
|
|
ft = format_create(c, NULL, FORMAT_NONE, 0);
|
|
format_defaults(ft, c, NULL, NULL, NULL);
|
|
|
|
title = format_expand_time(ft, template, time(NULL));
|
|
if (c->title == NULL || strcmp(title, c->title) != 0) {
|
|
free(c->title);
|
|
c->title = xstrdup(title);
|
|
tty_set_title(&c->tty, c->title);
|
|
}
|
|
free(title);
|
|
|
|
format_free(ft);
|
|
}
|
|
|
|
/* Dispatch message from client. */
|
|
static void
|
|
server_client_dispatch(struct imsg *imsg, void *arg)
|
|
{
|
|
struct client *c = arg;
|
|
struct msg_stdin_data stdindata;
|
|
const char *data;
|
|
ssize_t datalen;
|
|
struct session *s;
|
|
|
|
if (c->flags & CLIENT_DEAD)
|
|
return;
|
|
|
|
if (imsg == NULL) {
|
|
server_client_lost(c);
|
|
return;
|
|
}
|
|
|
|
data = imsg->data;
|
|
datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
|
|
|
switch (imsg->hdr.type) {
|
|
case MSG_IDENTIFY_FLAGS:
|
|
case MSG_IDENTIFY_TERM:
|
|
case MSG_IDENTIFY_TTYNAME:
|
|
case MSG_IDENTIFY_CWD:
|
|
case MSG_IDENTIFY_STDIN:
|
|
case MSG_IDENTIFY_ENVIRON:
|
|
case MSG_IDENTIFY_CLIENTPID:
|
|
case MSG_IDENTIFY_DONE:
|
|
server_client_dispatch_identify(c, imsg);
|
|
break;
|
|
case MSG_COMMAND:
|
|
server_client_dispatch_command(c, imsg);
|
|
break;
|
|
case MSG_STDIN:
|
|
if (datalen != sizeof stdindata)
|
|
fatalx("bad MSG_STDIN size");
|
|
memcpy(&stdindata, data, sizeof stdindata);
|
|
|
|
if (c->stdin_callback == NULL)
|
|
break;
|
|
if (stdindata.size <= 0)
|
|
c->stdin_closed = 1;
|
|
else {
|
|
evbuffer_add(c->stdin_data, stdindata.data,
|
|
stdindata.size);
|
|
}
|
|
c->stdin_callback(c, c->stdin_closed,
|
|
c->stdin_callback_data);
|
|
break;
|
|
case MSG_RESIZE:
|
|
if (datalen != 0)
|
|
fatalx("bad MSG_RESIZE size");
|
|
|
|
if (c->flags & CLIENT_CONTROL)
|
|
break;
|
|
tty_resize(&c->tty);
|
|
recalculate_sizes();
|
|
server_redraw_client(c);
|
|
if (c->session != NULL)
|
|
notify_client("client-resized", c);
|
|
break;
|
|
case MSG_EXITING:
|
|
if (datalen != 0)
|
|
fatalx("bad MSG_EXITING size");
|
|
|
|
c->session = NULL;
|
|
tty_close(&c->tty);
|
|
proc_send(c->peer, MSG_EXITED, -1, NULL, 0);
|
|
break;
|
|
case MSG_WAKEUP:
|
|
case MSG_UNLOCK:
|
|
if (datalen != 0)
|
|
fatalx("bad MSG_WAKEUP size");
|
|
|
|
if (!(c->flags & CLIENT_SUSPENDED))
|
|
break;
|
|
c->flags &= ~CLIENT_SUSPENDED;
|
|
|
|
if (c->tty.fd == -1) /* exited in the meantime */
|
|
break;
|
|
s = c->session;
|
|
|
|
if (gettimeofday(&c->activity_time, NULL) != 0)
|
|
fatal("gettimeofday failed");
|
|
|
|
tty_start_tty(&c->tty);
|
|
server_redraw_client(c);
|
|
recalculate_sizes();
|
|
|
|
if (s != NULL)
|
|
session_update_activity(s, &c->activity_time);
|
|
break;
|
|
case MSG_SHELL:
|
|
if (datalen != 0)
|
|
fatalx("bad MSG_SHELL size");
|
|
|
|
server_client_dispatch_shell(c);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Callback when command is done. */
|
|
static enum cmd_retval
|
|
server_client_command_done(struct cmdq_item *item, __unused void *data)
|
|
{
|
|
struct client *c = item->client;
|
|
|
|
if (~c->flags & CLIENT_ATTACHED)
|
|
c->flags |= CLIENT_EXIT;
|
|
return (CMD_RETURN_NORMAL);
|
|
}
|
|
|
|
/* Show an error message. */
|
|
static enum cmd_retval
|
|
server_client_command_error(struct cmdq_item *item, void *data)
|
|
{
|
|
char *error = data;
|
|
|
|
cmdq_error(item, "%s", error);
|
|
free(error);
|
|
|
|
return (CMD_RETURN_NORMAL);
|
|
}
|
|
|
|
/* Handle command message. */
|
|
static void
|
|
server_client_dispatch_command(struct client *c, struct imsg *imsg)
|
|
{
|
|
struct msg_command_data data;
|
|
char *buf;
|
|
size_t len;
|
|
struct cmd_list *cmdlist = NULL;
|
|
int argc;
|
|
char **argv, *cause;
|
|
|
|
if (c->flags & CLIENT_EXIT)
|
|
return;
|
|
|
|
if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data)
|
|
fatalx("bad MSG_COMMAND size");
|
|
memcpy(&data, imsg->data, sizeof data);
|
|
|
|
buf = (char *)imsg->data + sizeof data;
|
|
len = imsg->hdr.len - IMSG_HEADER_SIZE - sizeof data;
|
|
if (len > 0 && buf[len - 1] != '\0')
|
|
fatalx("bad MSG_COMMAND string");
|
|
|
|
argc = data.argc;
|
|
if (cmd_unpack_argv(buf, len, argc, &argv) != 0) {
|
|
cause = xstrdup("command too long");
|
|
goto error;
|
|
}
|
|
|
|
if (argc == 0) {
|
|
argc = 1;
|
|
argv = xcalloc(1, sizeof *argv);
|
|
*argv = xstrdup("new-session");
|
|
}
|
|
|
|
if ((cmdlist = cmd_list_parse(argc, argv, NULL, 0, &cause)) == NULL) {
|
|
cmd_free_argv(argc, argv);
|
|
goto error;
|
|
}
|
|
cmd_free_argv(argc, argv);
|
|
|
|
cmdq_append(c, cmdq_get_command(cmdlist, NULL, NULL, 0));
|
|
cmdq_append(c, cmdq_get_callback(server_client_command_done, NULL));
|
|
cmd_list_free(cmdlist);
|
|
return;
|
|
|
|
error:
|
|
cmdq_append(c, cmdq_get_callback(server_client_command_error, cause));
|
|
|
|
if (cmdlist != NULL)
|
|
cmd_list_free(cmdlist);
|
|
|
|
c->flags |= CLIENT_EXIT;
|
|
}
|
|
|
|
/* Handle identify message. */
|
|
static void
|
|
server_client_dispatch_identify(struct client *c, struct imsg *imsg)
|
|
{
|
|
const char *data, *home;
|
|
size_t datalen;
|
|
int flags;
|
|
char *name;
|
|
|
|
if (c->flags & CLIENT_IDENTIFIED)
|
|
fatalx("out-of-order identify message");
|
|
|
|
data = imsg->data;
|
|
datalen = imsg->hdr.len - IMSG_HEADER_SIZE;
|
|
|
|
switch (imsg->hdr.type) {
|
|
case MSG_IDENTIFY_FLAGS:
|
|
if (datalen != sizeof flags)
|
|
fatalx("bad MSG_IDENTIFY_FLAGS size");
|
|
memcpy(&flags, data, sizeof flags);
|
|
c->flags |= flags;
|
|
log_debug("client %p IDENTIFY_FLAGS %#x", c, flags);
|
|
break;
|
|
case MSG_IDENTIFY_TERM:
|
|
if (datalen == 0 || data[datalen - 1] != '\0')
|
|
fatalx("bad MSG_IDENTIFY_TERM string");
|
|
c->term = xstrdup(data);
|
|
log_debug("client %p IDENTIFY_TERM %s", c, data);
|
|
break;
|
|
case MSG_IDENTIFY_TTYNAME:
|
|
if (datalen == 0 || data[datalen - 1] != '\0')
|
|
fatalx("bad MSG_IDENTIFY_TTYNAME string");
|
|
c->ttyname = xstrdup(data);
|
|
log_debug("client %p IDENTIFY_TTYNAME %s", c, data);
|
|
break;
|
|
case MSG_IDENTIFY_CWD:
|
|
if (datalen == 0 || data[datalen - 1] != '\0')
|
|
fatalx("bad MSG_IDENTIFY_CWD string");
|
|
if (access(data, X_OK) == 0)
|
|
c->cwd = xstrdup(data);
|
|
else if ((home = find_home()) != NULL)
|
|
c->cwd = xstrdup(home);
|
|
else
|
|
c->cwd = xstrdup("/");
|
|
log_debug("client %p IDENTIFY_CWD %s", c, data);
|
|
break;
|
|
case MSG_IDENTIFY_STDIN:
|
|
if (datalen != 0)
|
|
fatalx("bad MSG_IDENTIFY_STDIN size");
|
|
c->fd = imsg->fd;
|
|
log_debug("client %p IDENTIFY_STDIN %d", c, imsg->fd);
|
|
break;
|
|
case MSG_IDENTIFY_ENVIRON:
|
|
if (datalen == 0 || data[datalen - 1] != '\0')
|
|
fatalx("bad MSG_IDENTIFY_ENVIRON string");
|
|
if (strchr(data, '=') != NULL)
|
|
environ_put(c->environ, data);
|
|
log_debug("client %p IDENTIFY_ENVIRON %s", c, data);
|
|
break;
|
|
case MSG_IDENTIFY_CLIENTPID:
|
|
if (datalen != sizeof c->pid)
|
|
fatalx("bad MSG_IDENTIFY_CLIENTPID size");
|
|
memcpy(&c->pid, data, sizeof c->pid);
|
|
log_debug("client %p IDENTIFY_CLIENTPID %ld", c, (long)c->pid);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (imsg->hdr.type != MSG_IDENTIFY_DONE)
|
|
return;
|
|
c->flags |= CLIENT_IDENTIFIED;
|
|
|
|
if (*c->ttyname != '\0')
|
|
name = xstrdup(c->ttyname);
|
|
else
|
|
xasprintf(&name, "client-%ld", (long)c->pid);
|
|
c->name = name;
|
|
log_debug("client %p name is %s", c, c->name);
|
|
|
|
if (c->flags & CLIENT_CONTROL) {
|
|
c->stdin_callback = control_callback;
|
|
|
|
evbuffer_free(c->stderr_data);
|
|
c->stderr_data = c->stdout_data;
|
|
|
|
if (c->flags & CLIENT_CONTROLCONTROL)
|
|
evbuffer_add_printf(c->stdout_data, "\033P1000p");
|
|
proc_send(c->peer, MSG_STDIN, -1, NULL, 0);
|
|
|
|
c->tty.fd = -1;
|
|
|
|
close(c->fd);
|
|
c->fd = -1;
|
|
|
|
return;
|
|
}
|
|
|
|
if (c->fd == -1)
|
|
return;
|
|
if (tty_init(&c->tty, c, c->fd, c->term) != 0) {
|
|
close(c->fd);
|
|
c->fd = -1;
|
|
return;
|
|
}
|
|
if (c->flags & CLIENT_UTF8)
|
|
c->tty.flags |= TTY_UTF8;
|
|
if (c->flags & CLIENT_256COLOURS)
|
|
c->tty.term_flags |= TERM_256COLOURS;
|
|
|
|
tty_resize(&c->tty);
|
|
|
|
if (!(c->flags & CLIENT_CONTROL))
|
|
c->flags |= CLIENT_TERMINAL;
|
|
}
|
|
|
|
/* Handle shell message. */
|
|
static void
|
|
server_client_dispatch_shell(struct client *c)
|
|
{
|
|
const char *shell;
|
|
|
|
shell = options_get_string(global_s_options, "default-shell");
|
|
if (*shell == '\0' || areshell(shell))
|
|
shell = _PATH_BSHELL;
|
|
proc_send(c->peer, MSG_SHELL, -1, shell, strlen(shell) + 1);
|
|
|
|
proc_kill_peer(c->peer);
|
|
}
|
|
|
|
/* Event callback to push more stdout data if any left. */
|
|
static void
|
|
server_client_stdout_cb(__unused int fd, __unused short events, void *arg)
|
|
{
|
|
struct client *c = arg;
|
|
|
|
if (~c->flags & CLIENT_DEAD)
|
|
server_client_push_stdout(c);
|
|
server_client_unref(c);
|
|
}
|
|
|
|
/* Push stdout to client if possible. */
|
|
void
|
|
server_client_push_stdout(struct client *c)
|
|
{
|
|
struct msg_stdout_data data;
|
|
size_t sent, left;
|
|
|
|
left = EVBUFFER_LENGTH(c->stdout_data);
|
|
while (left != 0) {
|
|
sent = left;
|
|
if (sent > sizeof data.data)
|
|
sent = sizeof data.data;
|
|
memcpy(data.data, EVBUFFER_DATA(c->stdout_data), sent);
|
|
data.size = sent;
|
|
|
|
if (proc_send(c->peer, MSG_STDOUT, -1, &data, sizeof data) != 0)
|
|
break;
|
|
evbuffer_drain(c->stdout_data, sent);
|
|
|
|
left = EVBUFFER_LENGTH(c->stdout_data);
|
|
log_debug("%s: client %p, sent %zu, left %zu", __func__, c,
|
|
sent, left);
|
|
}
|
|
if (left != 0) {
|
|
c->references++;
|
|
event_once(-1, EV_TIMEOUT, server_client_stdout_cb, c, NULL);
|
|
log_debug("%s: client %p, queued", __func__, c);
|
|
}
|
|
}
|
|
|
|
/* Event callback to push more stderr data if any left. */
|
|
static void
|
|
server_client_stderr_cb(__unused int fd, __unused short events, void *arg)
|
|
{
|
|
struct client *c = arg;
|
|
|
|
if (~c->flags & CLIENT_DEAD)
|
|
server_client_push_stderr(c);
|
|
server_client_unref(c);
|
|
}
|
|
|
|
/* Push stderr to client if possible. */
|
|
void
|
|
server_client_push_stderr(struct client *c)
|
|
{
|
|
struct msg_stderr_data data;
|
|
size_t sent, left;
|
|
|
|
if (c->stderr_data == c->stdout_data) {
|
|
server_client_push_stdout(c);
|
|
return;
|
|
}
|
|
|
|
left = EVBUFFER_LENGTH(c->stderr_data);
|
|
while (left != 0) {
|
|
sent = left;
|
|
if (sent > sizeof data.data)
|
|
sent = sizeof data.data;
|
|
memcpy(data.data, EVBUFFER_DATA(c->stderr_data), sent);
|
|
data.size = sent;
|
|
|
|
if (proc_send(c->peer, MSG_STDERR, -1, &data, sizeof data) != 0)
|
|
break;
|
|
evbuffer_drain(c->stderr_data, sent);
|
|
|
|
left = EVBUFFER_LENGTH(c->stderr_data);
|
|
log_debug("%s: client %p, sent %zu, left %zu", __func__, c,
|
|
sent, left);
|
|
}
|
|
if (left != 0) {
|
|
c->references++;
|
|
event_once(-1, EV_TIMEOUT, server_client_stderr_cb, c, NULL);
|
|
log_debug("%s: client %p, queued", __func__, c);
|
|
}
|
|
}
|
|
|
|
/* Add to client message log. */
|
|
void
|
|
server_client_add_message(struct client *c, const char *fmt, ...)
|
|
{
|
|
struct message_entry *msg, *msg1;
|
|
char *s;
|
|
va_list ap;
|
|
u_int limit;
|
|
|
|
va_start(ap, fmt);
|
|
xvasprintf(&s, fmt, ap);
|
|
va_end(ap);
|
|
|
|
log_debug("message %s (client %p)", s, c);
|
|
|
|
msg = xcalloc(1, sizeof *msg);
|
|
msg->msg_time = time(NULL);
|
|
msg->msg_num = c->message_next++;
|
|
msg->msg = s;
|
|
TAILQ_INSERT_TAIL(&c->message_log, msg, entry);
|
|
|
|
limit = options_get_number(global_options, "message-limit");
|
|
TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
|
|
if (msg->msg_num + limit >= c->message_next)
|
|
break;
|
|
free(msg->msg);
|
|
TAILQ_REMOVE(&c->message_log, msg, entry);
|
|
free(msg);
|
|
}
|
|
}
|
|
|
|
/* Get client working directory. */
|
|
const char *
|
|
server_client_get_cwd(struct client *c, struct session *s)
|
|
{
|
|
const char *home;
|
|
|
|
if (c != NULL && c->session == NULL && c->cwd != NULL)
|
|
return (c->cwd);
|
|
if (s != NULL && s->cwd != NULL)
|
|
return (s->cwd);
|
|
if (c != NULL && (s = c->session) != NULL && s->cwd != NULL)
|
|
return (s->cwd);
|
|
if ((home = find_home()) != NULL)
|
|
return (home);
|
|
return ("/");
|
|
}
|
|
|
|
/* Resolve an absolute path or relative to client working directory. */
|
|
char *
|
|
server_client_get_path(struct client *c, const char *file)
|
|
{
|
|
char *path, resolved[PATH_MAX];
|
|
|
|
if (*file == '/')
|
|
path = xstrdup(file);
|
|
else
|
|
xasprintf(&path, "%s/%s", server_client_get_cwd(c, NULL), file);
|
|
if (realpath(path, resolved) == NULL)
|
|
return (path);
|
|
free(path);
|
|
return (xstrdup(resolved));
|
|
}
|