mirror of
https://github.com/tmux/tmux.git
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1130 lines
30 KiB
C
1130 lines
30 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 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/time.h>
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#include <netinet/in.h>
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#include <limits.h>
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#include <resolv.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include "tmux.h"
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/*
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* Handle keys input from the outside terminal. tty_default_*_keys[] are a base
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* table of supported keys which are looked up in terminfo(5) and translated
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* into a ternary tree.
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*/
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static void tty_keys_add1(struct tty_key **, const char *, key_code);
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static void tty_keys_add(struct tty *, const char *, key_code);
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static void tty_keys_free1(struct tty_key *);
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static struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t,
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size_t *);
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static struct tty_key *tty_keys_find(struct tty *, const char *, size_t,
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size_t *);
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static int tty_keys_next1(struct tty *, const char *, size_t, key_code *,
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size_t *, int);
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static void tty_keys_callback(int, short, void *);
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static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *,
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struct mouse_event *);
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static int tty_keys_clipboard(struct tty *, const char *, size_t,
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size_t *);
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static int tty_keys_device_attributes(struct tty *, const char *, size_t,
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size_t *);
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static int tty_keys_device_status_report(struct tty *, const char *,
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size_t, size_t *);
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/* Default raw keys. */
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struct tty_default_key_raw {
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const char *string;
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key_code key;
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};
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static const struct tty_default_key_raw tty_default_raw_keys[] = {
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/*
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* Numeric keypad. Just use the vt100 escape sequences here and always
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* put the terminal into keypad_xmit mode. Translation of numbers
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* mode/applications mode is done in input-keys.c.
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*/
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{ "\033Oo", KEYC_KP_SLASH },
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{ "\033Oj", KEYC_KP_STAR },
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{ "\033Om", KEYC_KP_MINUS },
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{ "\033Ow", KEYC_KP_SEVEN },
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{ "\033Ox", KEYC_KP_EIGHT },
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{ "\033Oy", KEYC_KP_NINE },
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{ "\033Ok", KEYC_KP_PLUS },
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{ "\033Ot", KEYC_KP_FOUR },
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{ "\033Ou", KEYC_KP_FIVE },
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{ "\033Ov", KEYC_KP_SIX },
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{ "\033Oq", KEYC_KP_ONE },
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{ "\033Or", KEYC_KP_TWO },
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{ "\033Os", KEYC_KP_THREE },
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{ "\033OM", KEYC_KP_ENTER },
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{ "\033Op", KEYC_KP_ZERO },
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{ "\033On", KEYC_KP_PERIOD },
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/* Arrow keys. */
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{ "\033OA", KEYC_UP },
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{ "\033OB", KEYC_DOWN },
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{ "\033OC", KEYC_RIGHT },
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{ "\033OD", KEYC_LEFT },
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{ "\033[A", KEYC_UP },
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{ "\033[B", KEYC_DOWN },
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{ "\033[C", KEYC_RIGHT },
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{ "\033[D", KEYC_LEFT },
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/* Other (xterm) "cursor" keys. */
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{ "\033OH", KEYC_HOME },
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{ "\033OF", KEYC_END },
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{ "\033[H", KEYC_HOME },
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{ "\033[F", KEYC_END },
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/* rxvt-style arrow + modifier keys. */
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{ "\033Oa", KEYC_UP|KEYC_CTRL },
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{ "\033Ob", KEYC_DOWN|KEYC_CTRL },
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{ "\033Oc", KEYC_RIGHT|KEYC_CTRL },
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{ "\033Od", KEYC_LEFT|KEYC_CTRL },
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{ "\033[a", KEYC_UP|KEYC_SHIFT },
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{ "\033[b", KEYC_DOWN|KEYC_SHIFT },
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{ "\033[c", KEYC_RIGHT|KEYC_SHIFT },
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{ "\033[d", KEYC_LEFT|KEYC_SHIFT },
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/* rxvt-style function + modifier keys (C = ^, S = $, C-S = @). */
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{ "\033[11^", KEYC_F1|KEYC_CTRL },
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{ "\033[12^", KEYC_F2|KEYC_CTRL },
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{ "\033[13^", KEYC_F3|KEYC_CTRL },
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{ "\033[14^", KEYC_F4|KEYC_CTRL },
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{ "\033[15^", KEYC_F5|KEYC_CTRL },
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{ "\033[17^", KEYC_F6|KEYC_CTRL },
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{ "\033[18^", KEYC_F7|KEYC_CTRL },
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{ "\033[19^", KEYC_F8|KEYC_CTRL },
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{ "\033[20^", KEYC_F9|KEYC_CTRL },
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{ "\033[21^", KEYC_F10|KEYC_CTRL },
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{ "\033[23^", KEYC_F11|KEYC_CTRL },
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{ "\033[24^", KEYC_F12|KEYC_CTRL },
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{ "\033[2^", KEYC_IC|KEYC_CTRL },
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{ "\033[3^", KEYC_DC|KEYC_CTRL },
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{ "\033[7^", KEYC_HOME|KEYC_CTRL },
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{ "\033[8^", KEYC_END|KEYC_CTRL },
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{ "\033[6^", KEYC_NPAGE|KEYC_CTRL },
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{ "\033[5^", KEYC_PPAGE|KEYC_CTRL },
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{ "\033[11$", KEYC_F1|KEYC_SHIFT },
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{ "\033[12$", KEYC_F2|KEYC_SHIFT },
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{ "\033[13$", KEYC_F3|KEYC_SHIFT },
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{ "\033[14$", KEYC_F4|KEYC_SHIFT },
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{ "\033[15$", KEYC_F5|KEYC_SHIFT },
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{ "\033[17$", KEYC_F6|KEYC_SHIFT },
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{ "\033[18$", KEYC_F7|KEYC_SHIFT },
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{ "\033[19$", KEYC_F8|KEYC_SHIFT },
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{ "\033[20$", KEYC_F9|KEYC_SHIFT },
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{ "\033[21$", KEYC_F10|KEYC_SHIFT },
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{ "\033[23$", KEYC_F11|KEYC_SHIFT },
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{ "\033[24$", KEYC_F12|KEYC_SHIFT },
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{ "\033[2$", KEYC_IC|KEYC_SHIFT },
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{ "\033[3$", KEYC_DC|KEYC_SHIFT },
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{ "\033[7$", KEYC_HOME|KEYC_SHIFT },
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{ "\033[8$", KEYC_END|KEYC_SHIFT },
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{ "\033[6$", KEYC_NPAGE|KEYC_SHIFT },
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{ "\033[5$", KEYC_PPAGE|KEYC_SHIFT },
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{ "\033[11@", KEYC_F1|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[12@", KEYC_F2|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[13@", KEYC_F3|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[14@", KEYC_F4|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[15@", KEYC_F5|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[17@", KEYC_F6|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[18@", KEYC_F7|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[19@", KEYC_F8|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[20@", KEYC_F9|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[21@", KEYC_F10|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[23@", KEYC_F11|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[24@", KEYC_F12|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[2@", KEYC_IC|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[3@", KEYC_DC|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[7@", KEYC_HOME|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[8@", KEYC_END|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[6@", KEYC_NPAGE|KEYC_CTRL|KEYC_SHIFT },
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{ "\033[5@", KEYC_PPAGE|KEYC_CTRL|KEYC_SHIFT },
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/* Focus tracking. */
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{ "\033[I", KEYC_FOCUS_IN },
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{ "\033[O", KEYC_FOCUS_OUT },
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/* Paste keys. */
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{ "\033[200~", KEYC_PASTE_START },
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{ "\033[201~", KEYC_PASTE_END },
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};
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/*
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* Default terminfo(5) keys. Any keys that have builtin modifiers
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* (that is, where the key itself contains the modifiers) has the
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* KEYC_XTERM flag set so a leading escape is not treated as meta (and
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* probably removed).
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*/
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struct tty_default_key_code {
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enum tty_code_code code;
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key_code key;
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};
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static const struct tty_default_key_code tty_default_code_keys[] = {
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/* Function keys. */
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{ TTYC_KF1, KEYC_F1 },
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{ TTYC_KF2, KEYC_F2 },
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{ TTYC_KF3, KEYC_F3 },
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{ TTYC_KF4, KEYC_F4 },
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{ TTYC_KF5, KEYC_F5 },
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{ TTYC_KF6, KEYC_F6 },
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{ TTYC_KF7, KEYC_F7 },
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{ TTYC_KF8, KEYC_F8 },
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{ TTYC_KF9, KEYC_F9 },
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{ TTYC_KF10, KEYC_F10 },
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{ TTYC_KF11, KEYC_F11 },
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{ TTYC_KF12, KEYC_F12 },
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{ TTYC_KF13, KEYC_F1|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF14, KEYC_F2|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF15, KEYC_F3|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF16, KEYC_F4|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF17, KEYC_F5|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF18, KEYC_F6|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF19, KEYC_F7|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF20, KEYC_F8|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF21, KEYC_F9|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF22, KEYC_F10|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF23, KEYC_F11|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF24, KEYC_F12|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF25, KEYC_F1|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF26, KEYC_F2|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF27, KEYC_F3|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF28, KEYC_F4|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF29, KEYC_F5|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF30, KEYC_F6|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF31, KEYC_F7|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF32, KEYC_F8|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF33, KEYC_F9|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF34, KEYC_F10|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF35, KEYC_F11|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF36, KEYC_F12|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF37, KEYC_F1|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF38, KEYC_F2|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF39, KEYC_F3|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF40, KEYC_F4|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF41, KEYC_F5|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF42, KEYC_F6|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF43, KEYC_F7|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF44, KEYC_F8|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF45, KEYC_F9|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF46, KEYC_F10|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF47, KEYC_F11|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF48, KEYC_F12|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KF49, KEYC_F1|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF50, KEYC_F2|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF51, KEYC_F3|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF52, KEYC_F4|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF53, KEYC_F5|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF54, KEYC_F6|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF55, KEYC_F7|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF56, KEYC_F8|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF57, KEYC_F9|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF58, KEYC_F10|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF59, KEYC_F11|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF60, KEYC_F12|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KF61, KEYC_F1|KEYC_ESCAPE|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF62, KEYC_F2|KEYC_ESCAPE|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KF63, KEYC_F3|KEYC_ESCAPE|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KICH1, KEYC_IC },
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{ TTYC_KDCH1, KEYC_DC },
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{ TTYC_KHOME, KEYC_HOME },
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{ TTYC_KEND, KEYC_END },
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{ TTYC_KNP, KEYC_NPAGE },
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{ TTYC_KPP, KEYC_PPAGE },
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{ TTYC_KCBT, KEYC_BTAB },
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/* Arrow keys from terminfo. */
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{ TTYC_KCUU1, KEYC_UP },
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{ TTYC_KCUD1, KEYC_DOWN },
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{ TTYC_KCUB1, KEYC_LEFT },
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{ TTYC_KCUF1, KEYC_RIGHT },
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/* Key and modifier capabilities. */
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{ TTYC_KDC2, KEYC_DC|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KDC3, KEYC_DC|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KDC4, KEYC_DC|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KDC5, KEYC_DC|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KDC6, KEYC_DC|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KDC7, KEYC_DC|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KIND, KEYC_DOWN|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KDN2, KEYC_DOWN|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KDN3, KEYC_DOWN|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KDN4, KEYC_DOWN|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KDN5, KEYC_DOWN|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KDN6, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KDN7, KEYC_DOWN|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KEND2, KEYC_END|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KEND3, KEYC_END|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KEND4, KEYC_END|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KEND5, KEYC_END|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KEND6, KEYC_END|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KEND7, KEYC_END|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KHOM2, KEYC_HOME|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KHOM3, KEYC_HOME|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KHOM4, KEYC_HOME|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KHOM5, KEYC_HOME|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KHOM6, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KHOM7, KEYC_HOME|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KIC2, KEYC_IC|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KIC3, KEYC_IC|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KIC4, KEYC_IC|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KIC5, KEYC_IC|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KIC6, KEYC_IC|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KIC7, KEYC_IC|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KLFT2, KEYC_LEFT|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KLFT3, KEYC_LEFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KLFT4, KEYC_LEFT|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KLFT5, KEYC_LEFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KLFT6, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KLFT7, KEYC_LEFT|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KNXT2, KEYC_NPAGE|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KNXT3, KEYC_NPAGE|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KNXT4, KEYC_NPAGE|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
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{ TTYC_KNXT5, KEYC_NPAGE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KNXT6, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KNXT7, KEYC_NPAGE|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
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{ TTYC_KPRV2, KEYC_PPAGE|KEYC_SHIFT|KEYC_XTERM },
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{ TTYC_KPRV3, KEYC_PPAGE|KEYC_ESCAPE|KEYC_XTERM },
|
|
{ TTYC_KPRV4, KEYC_PPAGE|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
|
|
{ TTYC_KPRV5, KEYC_PPAGE|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KPRV6, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KPRV7, KEYC_PPAGE|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KRIT2, KEYC_RIGHT|KEYC_SHIFT|KEYC_XTERM },
|
|
{ TTYC_KRIT3, KEYC_RIGHT|KEYC_ESCAPE|KEYC_XTERM },
|
|
{ TTYC_KRIT4, KEYC_RIGHT|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
|
|
{ TTYC_KRIT5, KEYC_RIGHT|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KRIT6, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KRIT7, KEYC_RIGHT|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KRI, KEYC_UP|KEYC_SHIFT|KEYC_XTERM },
|
|
{ TTYC_KUP2, KEYC_UP|KEYC_SHIFT|KEYC_XTERM },
|
|
{ TTYC_KUP3, KEYC_UP|KEYC_ESCAPE|KEYC_XTERM },
|
|
{ TTYC_KUP4, KEYC_UP|KEYC_SHIFT|KEYC_ESCAPE|KEYC_XTERM },
|
|
{ TTYC_KUP5, KEYC_UP|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KUP6, KEYC_UP|KEYC_SHIFT|KEYC_CTRL|KEYC_XTERM },
|
|
{ TTYC_KUP7, KEYC_UP|KEYC_ESCAPE|KEYC_CTRL|KEYC_XTERM },
|
|
};
|
|
|
|
/* Add key to tree. */
|
|
static void
|
|
tty_keys_add(struct tty *tty, const char *s, key_code key)
|
|
{
|
|
struct tty_key *tk;
|
|
size_t size;
|
|
const char *keystr;
|
|
|
|
keystr = key_string_lookup_key(key);
|
|
if ((tk = tty_keys_find(tty, s, strlen(s), &size)) == NULL) {
|
|
log_debug("new key %s: 0x%llx (%s)", s, key, keystr);
|
|
tty_keys_add1(&tty->key_tree, s, key);
|
|
} else {
|
|
log_debug("replacing key %s: 0x%llx (%s)", s, key, keystr);
|
|
tk->key = key;
|
|
}
|
|
}
|
|
|
|
/* Add next node to the tree. */
|
|
static void
|
|
tty_keys_add1(struct tty_key **tkp, const char *s, key_code key)
|
|
{
|
|
struct tty_key *tk;
|
|
|
|
/* Allocate a tree entry if there isn't one already. */
|
|
tk = *tkp;
|
|
if (tk == NULL) {
|
|
tk = *tkp = xcalloc(1, sizeof *tk);
|
|
tk->ch = *s;
|
|
tk->key = KEYC_UNKNOWN;
|
|
}
|
|
|
|
/* Find the next entry. */
|
|
if (*s == tk->ch) {
|
|
/* Move forward in string. */
|
|
s++;
|
|
|
|
/* If this is the end of the string, no more is necessary. */
|
|
if (*s == '\0') {
|
|
tk->key = key;
|
|
return;
|
|
}
|
|
|
|
/* Use the child tree for the next character. */
|
|
tkp = &tk->next;
|
|
} else {
|
|
if (*s < tk->ch)
|
|
tkp = &tk->left;
|
|
else if (*s > tk->ch)
|
|
tkp = &tk->right;
|
|
}
|
|
|
|
/* And recurse to add it. */
|
|
tty_keys_add1(tkp, s, key);
|
|
}
|
|
|
|
/* Initialise a key tree from the table. */
|
|
void
|
|
tty_keys_build(struct tty *tty)
|
|
{
|
|
const struct tty_default_key_raw *tdkr;
|
|
const struct tty_default_key_code *tdkc;
|
|
u_int i;
|
|
const char *s;
|
|
struct options_entry *o;
|
|
struct options_array_item *a;
|
|
union options_value *ov;
|
|
|
|
if (tty->key_tree != NULL)
|
|
tty_keys_free(tty);
|
|
tty->key_tree = NULL;
|
|
|
|
for (i = 0; i < nitems(tty_default_raw_keys); i++) {
|
|
tdkr = &tty_default_raw_keys[i];
|
|
|
|
s = tdkr->string;
|
|
if (*s != '\0')
|
|
tty_keys_add(tty, s, tdkr->key);
|
|
}
|
|
for (i = 0; i < nitems(tty_default_code_keys); i++) {
|
|
tdkc = &tty_default_code_keys[i];
|
|
|
|
s = tty_term_string(tty->term, tdkc->code);
|
|
if (*s != '\0')
|
|
tty_keys_add(tty, s, tdkc->key);
|
|
|
|
}
|
|
|
|
o = options_get(global_options, "user-keys");
|
|
if (o != NULL) {
|
|
a = options_array_first(o);
|
|
while (a != NULL) {
|
|
i = options_array_item_index(a);
|
|
ov = options_array_item_value(a);
|
|
tty_keys_add(tty, ov->string, KEYC_USER + i);
|
|
a = options_array_next(a);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Free the entire key tree. */
|
|
void
|
|
tty_keys_free(struct tty *tty)
|
|
{
|
|
tty_keys_free1(tty->key_tree);
|
|
}
|
|
|
|
/* Free a single key. */
|
|
static void
|
|
tty_keys_free1(struct tty_key *tk)
|
|
{
|
|
if (tk->next != NULL)
|
|
tty_keys_free1(tk->next);
|
|
if (tk->left != NULL)
|
|
tty_keys_free1(tk->left);
|
|
if (tk->right != NULL)
|
|
tty_keys_free1(tk->right);
|
|
free(tk);
|
|
}
|
|
|
|
/* Lookup a key in the tree. */
|
|
static struct tty_key *
|
|
tty_keys_find(struct tty *tty, const char *buf, size_t len, size_t *size)
|
|
{
|
|
*size = 0;
|
|
return (tty_keys_find1(tty->key_tree, buf, len, size));
|
|
}
|
|
|
|
/* Find the next node. */
|
|
static struct tty_key *
|
|
tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size)
|
|
{
|
|
/* If no data, no match. */
|
|
if (len == 0)
|
|
return (NULL);
|
|
|
|
/* If the node is NULL, this is the end of the tree. No match. */
|
|
if (tk == NULL)
|
|
return (NULL);
|
|
|
|
/* Pick the next in the sequence. */
|
|
if (tk->ch == *buf) {
|
|
/* Move forward in the string. */
|
|
buf++; len--;
|
|
(*size)++;
|
|
|
|
/* At the end of the string, return the current node. */
|
|
if (len == 0 || (tk->next == NULL && tk->key != KEYC_UNKNOWN))
|
|
return (tk);
|
|
|
|
/* Move into the next tree for the following character. */
|
|
tk = tk->next;
|
|
} else {
|
|
if (*buf < tk->ch)
|
|
tk = tk->left;
|
|
else if (*buf > tk->ch)
|
|
tk = tk->right;
|
|
}
|
|
|
|
/* Move to the next in the tree. */
|
|
return (tty_keys_find1(tk, buf, len, size));
|
|
}
|
|
|
|
/* Look up part of the next key. */
|
|
static int
|
|
tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key,
|
|
size_t *size, int expired)
|
|
{
|
|
struct client *c = tty->client;
|
|
struct tty_key *tk, *tk1;
|
|
struct utf8_data ud;
|
|
enum utf8_state more;
|
|
u_int i;
|
|
wchar_t wc;
|
|
int n;
|
|
|
|
log_debug("%s: next key is %zu (%.*s) (expired=%d)", c->name, len,
|
|
(int)len, buf, expired);
|
|
|
|
/* Is this a known key? */
|
|
tk = tty_keys_find(tty, buf, len, size);
|
|
if (tk != NULL && tk->key != KEYC_UNKNOWN) {
|
|
tk1 = tk;
|
|
do
|
|
log_debug("%s: keys in list: %#llx", c->name, tk1->key);
|
|
while ((tk1 = tk1->next) != NULL);
|
|
if (tk->next != NULL && !expired)
|
|
return (1);
|
|
*key = tk->key;
|
|
return (0);
|
|
}
|
|
|
|
/* Is this an an xterm(1) key? */
|
|
n = xterm_keys_find(buf, len, size, key);
|
|
if (n == 0)
|
|
return (0);
|
|
if (n == 1 && !expired)
|
|
return (1);
|
|
|
|
/* Is this valid UTF-8? */
|
|
more = utf8_open(&ud, (u_char)*buf);
|
|
if (more == UTF8_MORE) {
|
|
*size = ud.size;
|
|
if (len < ud.size) {
|
|
if (!expired)
|
|
return (1);
|
|
return (-1);
|
|
}
|
|
for (i = 1; i < ud.size; i++)
|
|
more = utf8_append(&ud, (u_char)buf[i]);
|
|
if (more != UTF8_DONE)
|
|
return (-1);
|
|
|
|
if (utf8_combine(&ud, &wc) != UTF8_DONE)
|
|
return (-1);
|
|
*key = wc;
|
|
|
|
log_debug("%s: UTF-8 key %.*s %#llx", c->name, (int)ud.size,
|
|
buf, *key);
|
|
return (0);
|
|
}
|
|
|
|
return (-1);
|
|
}
|
|
|
|
/* Process at least one key in the buffer. Return 0 if no keys present. */
|
|
int
|
|
tty_keys_next(struct tty *tty)
|
|
{
|
|
struct client *c = tty->client;
|
|
struct timeval tv;
|
|
const char *buf;
|
|
size_t len, size;
|
|
cc_t bspace;
|
|
int delay, expired = 0, n;
|
|
key_code key;
|
|
struct mouse_event m = { 0 };
|
|
struct key_event *event;
|
|
|
|
gettimeofday(&tv, NULL);
|
|
|
|
/* Get key buffer. */
|
|
buf = EVBUFFER_DATA(tty->in);
|
|
len = EVBUFFER_LENGTH(tty->in);
|
|
if (len == 0)
|
|
return (0);
|
|
log_debug("%s: keys are %zu (%.*s)", c->name, len, (int)len, buf);
|
|
|
|
/* Is this a clipboard response? */
|
|
switch (tty_keys_clipboard(tty, buf, len, &size)) {
|
|
case 0: /* yes */
|
|
key = KEYC_UNKNOWN;
|
|
goto complete_key;
|
|
case -1: /* no, or not valid */
|
|
break;
|
|
case 1: /* partial */
|
|
goto partial_key;
|
|
}
|
|
|
|
/* Is this a device attributes response? */
|
|
switch (tty_keys_device_attributes(tty, buf, len, &size)) {
|
|
case 0: /* yes */
|
|
key = KEYC_UNKNOWN;
|
|
goto complete_key;
|
|
case -1: /* no, or not valid */
|
|
break;
|
|
case 1: /* partial */
|
|
goto partial_key;
|
|
}
|
|
|
|
/* Is this a device status report response? */
|
|
switch (tty_keys_device_status_report(tty, buf, len, &size)) {
|
|
case 0: /* yes */
|
|
key = KEYC_UNKNOWN;
|
|
goto complete_key;
|
|
case -1: /* no, or not valid */
|
|
break;
|
|
case 1: /* partial */
|
|
goto partial_key;
|
|
}
|
|
|
|
/* Is this a mouse key press? */
|
|
switch (tty_keys_mouse(tty, buf, len, &size, &m)) {
|
|
case 0: /* yes */
|
|
key = KEYC_MOUSE;
|
|
goto complete_key;
|
|
case -1: /* no, or not valid */
|
|
break;
|
|
case -2: /* yes, but we don't care. */
|
|
key = KEYC_MOUSE;
|
|
goto discard_key;
|
|
case 1: /* partial */
|
|
goto partial_key;
|
|
}
|
|
|
|
first_key:
|
|
/* Try to lookup complete key. */
|
|
n = tty_keys_next1(tty, buf, len, &key, &size, expired);
|
|
if (n == 0) /* found */
|
|
goto complete_key;
|
|
if (n == 1)
|
|
goto partial_key;
|
|
|
|
/*
|
|
* If not a complete key, look for key with an escape prefix (meta
|
|
* modifier).
|
|
*/
|
|
if (*buf == '\033' && len > 1) {
|
|
/* Look for a key without the escape. */
|
|
n = tty_keys_next1(tty, buf + 1, len - 1, &key, &size, expired);
|
|
if (n == 0) { /* found */
|
|
if (key & KEYC_XTERM) {
|
|
/*
|
|
* We want the escape key as well as the xterm
|
|
* key, because the xterm sequence implicitly
|
|
* includes the escape (so if we see
|
|
* \033\033[1;3D we know it is an Escape
|
|
* followed by M-Left, not just M-Left).
|
|
*/
|
|
key = '\033';
|
|
size = 1;
|
|
goto complete_key;
|
|
}
|
|
key |= KEYC_ESCAPE;
|
|
size++;
|
|
goto complete_key;
|
|
}
|
|
if (n == 1) /* partial */
|
|
goto partial_key;
|
|
}
|
|
|
|
/*
|
|
* At this point, we know the key is not partial (with or without
|
|
* escape). So pass it through even if the timer has not expired.
|
|
*/
|
|
if (*buf == '\033' && len >= 2) {
|
|
key = (u_char)buf[1] | KEYC_ESCAPE;
|
|
size = 2;
|
|
} else {
|
|
key = (u_char)buf[0];
|
|
size = 1;
|
|
}
|
|
goto complete_key;
|
|
|
|
partial_key:
|
|
log_debug("%s: partial key %.*s", c->name, (int)len, buf);
|
|
|
|
/* If timer is going, check for expiration. */
|
|
if (tty->flags & TTY_TIMER) {
|
|
if (evtimer_initialized(&tty->key_timer) &&
|
|
!evtimer_pending(&tty->key_timer, NULL)) {
|
|
expired = 1;
|
|
goto first_key;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* Get the time period. */
|
|
delay = options_get_number(global_options, "escape-time");
|
|
tv.tv_sec = delay / 1000;
|
|
tv.tv_usec = (delay % 1000) * 1000L;
|
|
|
|
/* Start the timer. */
|
|
if (event_initialized(&tty->key_timer))
|
|
evtimer_del(&tty->key_timer);
|
|
evtimer_set(&tty->key_timer, tty_keys_callback, tty);
|
|
evtimer_add(&tty->key_timer, &tv);
|
|
|
|
tty->flags |= TTY_TIMER;
|
|
return (0);
|
|
|
|
complete_key:
|
|
log_debug("%s: complete key %.*s %#llx", c->name, (int)size, buf, key);
|
|
|
|
/*
|
|
* Check for backspace key using termios VERASE - the terminfo
|
|
* kbs entry is extremely unreliable, so cannot be safely
|
|
* used. termios should have a better idea.
|
|
*/
|
|
bspace = tty->tio.c_cc[VERASE];
|
|
if (bspace != _POSIX_VDISABLE && (key & KEYC_MASK_KEY) == bspace)
|
|
key = (key & KEYC_MASK_MOD) | KEYC_BSPACE;
|
|
|
|
/* Remove data from buffer. */
|
|
evbuffer_drain(tty->in, size);
|
|
|
|
/* Remove key timer. */
|
|
if (event_initialized(&tty->key_timer))
|
|
evtimer_del(&tty->key_timer);
|
|
tty->flags &= ~TTY_TIMER;
|
|
|
|
/* Check for focus events. */
|
|
if (key == KEYC_FOCUS_OUT) {
|
|
tty->client->flags &= ~CLIENT_FOCUSED;
|
|
return (1);
|
|
} else if (key == KEYC_FOCUS_IN) {
|
|
tty->client->flags |= CLIENT_FOCUSED;
|
|
return (1);
|
|
}
|
|
|
|
/* Fire the key. */
|
|
if (key != KEYC_UNKNOWN) {
|
|
event = xmalloc(sizeof *event);
|
|
event->key = key;
|
|
memcpy(&event->m, &m, sizeof event->m);
|
|
if (!server_client_handle_key(c, event))
|
|
free(event);
|
|
}
|
|
|
|
return (1);
|
|
|
|
discard_key:
|
|
log_debug("%s: discard key %.*s %#llx", c->name, (int)size, buf, key);
|
|
|
|
/* Remove data from buffer. */
|
|
evbuffer_drain(tty->in, size);
|
|
|
|
return (1);
|
|
}
|
|
|
|
/* Key timer callback. */
|
|
static void
|
|
tty_keys_callback(__unused int fd, __unused short events, void *data)
|
|
{
|
|
struct tty *tty = data;
|
|
|
|
if (tty->flags & TTY_TIMER) {
|
|
while (tty_keys_next(tty))
|
|
;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handle mouse key input. Returns 0 for success, -1 for failure, 1 for partial
|
|
* (probably a mouse sequence but need more data).
|
|
*/
|
|
static int
|
|
tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size,
|
|
struct mouse_event *m)
|
|
{
|
|
struct client *c = tty->client;
|
|
u_int i, x, y, b, sgr_b;
|
|
u_char sgr_type, ch;
|
|
|
|
/*
|
|
* Standard mouse sequences are \033[M followed by three characters
|
|
* indicating button, X and Y, all based at 32 with 1,1 top-left.
|
|
*
|
|
* UTF-8 mouse sequences are similar but the three are expressed as
|
|
* UTF-8 characters.
|
|
*
|
|
* SGR extended mouse sequences are \033[< followed by three numbers in
|
|
* decimal and separated by semicolons indicating button, X and Y. A
|
|
* trailing 'M' is click or scroll and trailing 'm' release. All are
|
|
* based at 0 with 1,1 top-left.
|
|
*/
|
|
|
|
*size = 0;
|
|
x = y = b = sgr_b = 0;
|
|
sgr_type = ' ';
|
|
|
|
/* First two bytes are always \033[. */
|
|
if (buf[0] != '\033')
|
|
return (-1);
|
|
if (len == 1)
|
|
return (1);
|
|
if (buf[1] != '[')
|
|
return (-1);
|
|
if (len == 2)
|
|
return (1);
|
|
|
|
/*
|
|
* Third byte is M in old standard (and UTF-8 extension which we do not
|
|
* support), < in SGR extension.
|
|
*/
|
|
if (buf[2] == 'M') {
|
|
/* Read the three inputs. */
|
|
*size = 3;
|
|
for (i = 0; i < 3; i++) {
|
|
if (len <= *size)
|
|
return (1);
|
|
ch = (u_char)buf[(*size)++];
|
|
if (i == 0)
|
|
b = ch;
|
|
else if (i == 1)
|
|
x = ch;
|
|
else
|
|
y = ch;
|
|
}
|
|
log_debug("%s: mouse input: %.*s", c->name, (int)*size, buf);
|
|
|
|
/* Check and return the mouse input. */
|
|
if (b < 32)
|
|
return (-1);
|
|
b -= 32;
|
|
if (x >= 33)
|
|
x -= 33;
|
|
else
|
|
x = 256 - x;
|
|
if (y >= 33)
|
|
y -= 33;
|
|
else
|
|
y = 256 - y;
|
|
} else if (buf[2] == '<') {
|
|
/* Read the three inputs. */
|
|
*size = 3;
|
|
while (1) {
|
|
if (len <= *size)
|
|
return (1);
|
|
ch = (u_char)buf[(*size)++];
|
|
if (ch == ';')
|
|
break;
|
|
if (ch < '0' || ch > '9')
|
|
return (-1);
|
|
sgr_b = 10 * sgr_b + (ch - '0');
|
|
}
|
|
while (1) {
|
|
if (len <= *size)
|
|
return (1);
|
|
ch = (u_char)buf[(*size)++];
|
|
if (ch == ';')
|
|
break;
|
|
if (ch < '0' || ch > '9')
|
|
return (-1);
|
|
x = 10 * x + (ch - '0');
|
|
}
|
|
while (1) {
|
|
if (len <= *size)
|
|
return (1);
|
|
ch = (u_char)buf[(*size)++];
|
|
if (ch == 'M' || ch == 'm')
|
|
break;
|
|
if (ch < '0' || ch > '9')
|
|
return (-1);
|
|
y = 10 * y + (ch - '0');
|
|
}
|
|
log_debug("%s: mouse input (SGR): %.*s", c->name, (int)*size,
|
|
buf);
|
|
|
|
/* Check and return the mouse input. */
|
|
if (x < 1 || y < 1)
|
|
return (-1);
|
|
x--;
|
|
y--;
|
|
b = sgr_b;
|
|
|
|
/* Type is M for press, m for release. */
|
|
sgr_type = ch;
|
|
if (sgr_type == 'm')
|
|
b |= 3;
|
|
|
|
/*
|
|
* Some terminals (like PuTTY 0.63) mistakenly send
|
|
* button-release events for scroll-wheel button-press event.
|
|
* Discard it before it reaches any program running inside
|
|
* tmux.
|
|
*/
|
|
if (sgr_type == 'm' && (sgr_b & 64))
|
|
return (-2);
|
|
} else
|
|
return (-1);
|
|
|
|
/* Fill mouse event. */
|
|
m->lx = tty->mouse_last_x;
|
|
m->x = x;
|
|
m->ly = tty->mouse_last_y;
|
|
m->y = y;
|
|
m->lb = tty->mouse_last_b;
|
|
m->b = b;
|
|
m->sgr_type = sgr_type;
|
|
m->sgr_b = sgr_b;
|
|
|
|
/* Update last mouse state. */
|
|
tty->mouse_last_x = x;
|
|
tty->mouse_last_y = y;
|
|
tty->mouse_last_b = b;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle OSC 52 clipboard input. Returns 0 for success, -1 for failure, 1 for
|
|
* partial.
|
|
*/
|
|
static int
|
|
tty_keys_clipboard(__unused struct tty *tty, const char *buf, size_t len,
|
|
size_t *size)
|
|
{
|
|
size_t end, terminator, needed;
|
|
char *copy, *out;
|
|
int outlen;
|
|
|
|
*size = 0;
|
|
|
|
/* First three bytes are always \033]52;. */
|
|
if (buf[0] != '\033')
|
|
return (-1);
|
|
if (len == 1)
|
|
return (1);
|
|
if (buf[1] != ']')
|
|
return (-1);
|
|
if (len == 2)
|
|
return (1);
|
|
if (buf[2] != '5')
|
|
return (-1);
|
|
if (len == 3)
|
|
return (1);
|
|
if (buf[3] != '2')
|
|
return (-1);
|
|
if (len == 4)
|
|
return (1);
|
|
if (buf[4] != ';')
|
|
return (-1);
|
|
if (len == 5)
|
|
return (1);
|
|
|
|
/* Find the terminator if any. */
|
|
for (end = 5; end < len; end++) {
|
|
if (buf[end] == '\007') {
|
|
terminator = 1;
|
|
break;
|
|
}
|
|
if (end > 5 && buf[end - 1] == '\033' && buf[end] == '\\') {
|
|
terminator = 2;
|
|
break;
|
|
}
|
|
}
|
|
if (end == len)
|
|
return (1);
|
|
*size = end + terminator;
|
|
|
|
/* Skip the initial part. */
|
|
buf += 5;
|
|
end -= 5;
|
|
|
|
/* Get the second argument. */
|
|
while (end != 0 && *buf != ';') {
|
|
buf++;
|
|
end--;
|
|
}
|
|
if (end == 0 || end == 1)
|
|
return (0);
|
|
buf++;
|
|
end--;
|
|
|
|
/* It has to be a string so copy it. */
|
|
copy = xmalloc(end + 1);
|
|
memcpy(copy, buf, end);
|
|
copy[end] = '\0';
|
|
|
|
/* Convert from base64. */
|
|
needed = (end / 4) * 3;
|
|
out = xmalloc(needed);
|
|
if ((outlen = b64_pton(copy, out, len)) == -1) {
|
|
free(out);
|
|
free(copy);
|
|
return (0);
|
|
}
|
|
free(copy);
|
|
|
|
/* Create a new paste buffer. */
|
|
log_debug("%s: %.*s", __func__, outlen, out);
|
|
paste_add(NULL, out, outlen);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle device attributes input. Returns 0 for success, -1 for failure, 1 for
|
|
* partial.
|
|
*/
|
|
static int
|
|
tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
|
|
size_t *size)
|
|
{
|
|
struct client *c = tty->client;
|
|
u_int i, n = 0;
|
|
char tmp[64], *endptr, p[32] = { 0 }, *cp, *next;
|
|
int flags = 0;
|
|
|
|
*size = 0;
|
|
if (tty->flags & TTY_HAVEDA)
|
|
return (-1);
|
|
|
|
/* First three bytes are always \033[?. */
|
|
if (buf[0] != '\033')
|
|
return (-1);
|
|
if (len == 1)
|
|
return (1);
|
|
if (buf[1] != '[')
|
|
return (-1);
|
|
if (len == 2)
|
|
return (1);
|
|
if (buf[2] != '?')
|
|
return (-1);
|
|
if (len == 3)
|
|
return (1);
|
|
|
|
/* Copy the rest up to a 'c'. */
|
|
for (i = 0; i < (sizeof tmp) - 1 && buf[3 + i] != 'c'; i++) {
|
|
if (3 + i == len)
|
|
return (1);
|
|
tmp[i] = buf[3 + i];
|
|
}
|
|
if (i == (sizeof tmp) - 1)
|
|
return (-1);
|
|
tmp[i] = '\0';
|
|
*size = 4 + i;
|
|
|
|
/* Convert version numbers. */
|
|
cp = tmp;
|
|
while ((next = strsep(&cp, ";")) != NULL) {
|
|
p[n] = strtoul(next, &endptr, 10);
|
|
if (*endptr != '\0')
|
|
p[n] = 0;
|
|
n++;
|
|
}
|
|
|
|
/* Set terminal flags. */
|
|
switch (p[0]) {
|
|
case 64: /* VT420 */
|
|
flags |= (TERM_DECFRA|TERM_DECSLRM);
|
|
break;
|
|
}
|
|
for (i = 1; i < n; i++)
|
|
log_debug("%s: DA feature: %d", c->name, p[i]);
|
|
log_debug("%s: received DA %.*s", c->name, (int)*size, buf);
|
|
|
|
tty_set_flags(tty, flags);
|
|
tty->flags |= TTY_HAVEDA;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle device status report input. Returns 0 for success, -1 for failure, 1
|
|
* for partial.
|
|
*/
|
|
static int
|
|
tty_keys_device_status_report(struct tty *tty, const char *buf, size_t len,
|
|
size_t *size)
|
|
{
|
|
struct client *c = tty->client;
|
|
u_int i;
|
|
char tmp[64];
|
|
int flags = 0;
|
|
|
|
*size = 0;
|
|
if (tty->flags & TTY_HAVEDSR)
|
|
return (-1);
|
|
|
|
/* First three bytes are always \033[. */
|
|
if (buf[0] != '\033')
|
|
return (-1);
|
|
if (len == 1)
|
|
return (1);
|
|
if (buf[1] != '[')
|
|
return (-1);
|
|
if (len == 2)
|
|
return (1);
|
|
if (buf[2] != 'I' && buf[2] != 'T')
|
|
return (-1);
|
|
if (len == 3)
|
|
return (1);
|
|
|
|
/* Copy the rest up to a 'n'. */
|
|
for (i = 0; i < (sizeof tmp) - 1 && buf[2 + i] != 'n'; i++) {
|
|
if (2 + i == len)
|
|
return (1);
|
|
tmp[i] = buf[2 + i];
|
|
}
|
|
if (i == (sizeof tmp) - 1)
|
|
return (-1);
|
|
tmp[i] = '\0';
|
|
*size = 3 + i;
|
|
|
|
/* Set terminal flags. */
|
|
if (strncmp(tmp, "ITERM2 ", 7) == 0)
|
|
flags |= (TERM_DECSLRM|TERM_256COLOURS|TERM_RGBCOLOURS);
|
|
if (strncmp(tmp, "TMUX ", 5) == 0)
|
|
flags |= (TERM_256COLOURS|TERM_RGBCOLOURS);
|
|
log_debug("%s: received DSR %.*s", c->name, (int)*size, buf);
|
|
|
|
tty_set_flags(tty, flags);
|
|
tty->flags |= TTY_HAVEDSR;
|
|
|
|
return (0);
|
|
}
|