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Diffstat (limited to '')
| -rw-r--r-- | tty-keys.c | 1404 |
1 files changed, 1404 insertions, 0 deletions
diff --git a/tty-keys.c b/tty-keys.c new file mode 100644 index 0000000..64dd91b --- /dev/null +++ b/tty-keys.c @@ -0,0 +1,1404 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/types.h> +#include <sys/time.h> + +#include <netinet/in.h> + +#include <ctype.h> +#include <limits.h> +#include <resolv.h> +#include <stdlib.h> +#include <string.h> +#include <termios.h> +#include <unistd.h> + +#include "tmux.h" + +/* + * Handle keys input from the outside terminal. tty_default_*_keys[] are a base + * table of supported keys which are looked up in terminfo(5) and translated + * into a ternary tree. + */ + +static void tty_keys_add1(struct tty_key **, const char *, key_code); +static void tty_keys_add(struct tty *, const char *, key_code); +static void tty_keys_free1(struct tty_key *); +static struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t, + size_t *); +static struct tty_key *tty_keys_find(struct tty *, const char *, size_t, + size_t *); +static int tty_keys_next1(struct tty *, const char *, size_t, key_code *, + size_t *, int); +static void tty_keys_callback(int, short, void *); +static int tty_keys_extended_key(struct tty *, const char *, size_t, + size_t *, key_code *); +static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *, + struct mouse_event *); +static int tty_keys_clipboard(struct tty *, const char *, size_t, + size_t *); +static int tty_keys_device_attributes(struct tty *, const char *, size_t, + size_t *); +static int tty_keys_extended_device_attributes(struct tty *, const char *, + size_t, size_t *); + +/* A key tree entry. */ +struct tty_key { + char ch; + key_code key; + + struct tty_key *left; + struct tty_key *right; + + struct tty_key *next; +}; + +/* Default raw keys. */ +struct tty_default_key_raw { + const char *string; + key_code key; +}; +static const struct tty_default_key_raw tty_default_raw_keys[] = { + /* Application escape. */ + { "\033O[", '\033' }, + + /* + * Numeric keypad. Just use the vt100 escape sequences here and always + * put the terminal into keypad_xmit mode. Translation of numbers + * mode/applications mode is done in input-keys.c. + */ + { "\033Oo", KEYC_KP_SLASH|KEYC_KEYPAD }, + { "\033Oj", KEYC_KP_STAR|KEYC_KEYPAD }, + { "\033Om", KEYC_KP_MINUS|KEYC_KEYPAD }, + { "\033Ow", KEYC_KP_SEVEN|KEYC_KEYPAD }, + { "\033Ox", KEYC_KP_EIGHT|KEYC_KEYPAD }, + { "\033Oy", KEYC_KP_NINE|KEYC_KEYPAD }, + { "\033Ok", KEYC_KP_PLUS|KEYC_KEYPAD }, + { "\033Ot", KEYC_KP_FOUR|KEYC_KEYPAD }, + { "\033Ou", KEYC_KP_FIVE|KEYC_KEYPAD }, + { "\033Ov", KEYC_KP_SIX|KEYC_KEYPAD }, + { "\033Oq", KEYC_KP_ONE|KEYC_KEYPAD }, + { "\033Or", KEYC_KP_TWO|KEYC_KEYPAD }, + { "\033Os", KEYC_KP_THREE|KEYC_KEYPAD }, + { "\033OM", KEYC_KP_ENTER|KEYC_KEYPAD }, + { "\033Op", KEYC_KP_ZERO|KEYC_KEYPAD }, + { "\033On", KEYC_KP_PERIOD|KEYC_KEYPAD }, + + /* Arrow keys. */ + { "\033OA", KEYC_UP|KEYC_CURSOR }, + { "\033OB", KEYC_DOWN|KEYC_CURSOR }, + { "\033OC", KEYC_RIGHT|KEYC_CURSOR }, + { "\033OD", KEYC_LEFT|KEYC_CURSOR }, + + { "\033[A", KEYC_UP|KEYC_CURSOR }, + { "\033[B", KEYC_DOWN|KEYC_CURSOR }, + { "\033[C", KEYC_RIGHT|KEYC_CURSOR }, + { "\033[D", KEYC_LEFT|KEYC_CURSOR }, + + /* + * Meta arrow keys. These do not get the IMPLIED_META flag so they + * don't match the xterm-style meta keys in the output tree - Escape+Up + * should stay as Escape+Up and not become M-Up. + */ + { "\033\033OA", KEYC_UP|KEYC_CURSOR|KEYC_META }, + { "\033\033OB", KEYC_DOWN|KEYC_CURSOR|KEYC_META }, + { "\033\033OC", KEYC_RIGHT|KEYC_CURSOR|KEYC_META }, + { "\033\033OD", KEYC_LEFT|KEYC_CURSOR|KEYC_META }, + + { "\033\033[A", KEYC_UP|KEYC_CURSOR|KEYC_META }, + { "\033\033[B", KEYC_DOWN|KEYC_CURSOR|KEYC_META }, + { "\033\033[C", KEYC_RIGHT|KEYC_CURSOR|KEYC_META }, + { "\033\033[D", KEYC_LEFT|KEYC_CURSOR|KEYC_META }, + + /* Other (xterm) "cursor" keys. */ + { "\033OH", KEYC_HOME }, + { "\033OF", KEYC_END }, + + { "\033\033OH", KEYC_HOME|KEYC_META|KEYC_IMPLIED_META }, + { "\033\033OF", KEYC_END|KEYC_META|KEYC_IMPLIED_META }, + + { "\033[H", KEYC_HOME }, + { "\033[F", KEYC_END }, + + { "\033\033[H", KEYC_HOME|KEYC_META|KEYC_IMPLIED_META }, + { "\033\033[F", KEYC_END|KEYC_META|KEYC_IMPLIED_META }, + + /* rxvt-style arrow + modifier keys. */ + { "\033Oa", KEYC_UP|KEYC_CTRL }, + { "\033Ob", KEYC_DOWN|KEYC_CTRL }, + { "\033Oc", KEYC_RIGHT|KEYC_CTRL }, + { "\033Od", KEYC_LEFT|KEYC_CTRL }, + + { "\033[a", KEYC_UP|KEYC_SHIFT }, + { "\033[b", KEYC_DOWN|KEYC_SHIFT }, + { "\033[c", KEYC_RIGHT|KEYC_SHIFT }, + { "\033[d", KEYC_LEFT|KEYC_SHIFT }, + + /* rxvt-style function + modifier keys (C = ^, S = $, C-S = @). */ + { "\033[11^", KEYC_F1|KEYC_CTRL }, + { "\033[12^", KEYC_F2|KEYC_CTRL }, + { "\033[13^", KEYC_F3|KEYC_CTRL }, + { "\033[14^", KEYC_F4|KEYC_CTRL }, + { "\033[15^", KEYC_F5|KEYC_CTRL }, + { "\033[17^", KEYC_F6|KEYC_CTRL }, + { "\033[18^", KEYC_F7|KEYC_CTRL }, + { "\033[19^", KEYC_F8|KEYC_CTRL }, + { "\033[20^", KEYC_F9|KEYC_CTRL }, + { "\033[21^", KEYC_F10|KEYC_CTRL }, + { "\033[23^", KEYC_F11|KEYC_CTRL }, + { "\033[24^", KEYC_F12|KEYC_CTRL }, + { "\033[2^", KEYC_IC|KEYC_CTRL }, + { "\033[3^", KEYC_DC|KEYC_CTRL }, + { "\033[7^", KEYC_HOME|KEYC_CTRL }, + { "\033[8^", KEYC_END|KEYC_CTRL }, + { "\033[6^", KEYC_NPAGE|KEYC_CTRL }, + { "\033[5^", KEYC_PPAGE|KEYC_CTRL }, + + { "\033[11$", KEYC_F1|KEYC_SHIFT }, + { "\033[12$", KEYC_F2|KEYC_SHIFT }, + { "\033[13$", KEYC_F3|KEYC_SHIFT }, + { "\033[14$", KEYC_F4|KEYC_SHIFT }, + { "\033[15$", KEYC_F5|KEYC_SHIFT }, + { "\033[17$", KEYC_F6|KEYC_SHIFT }, + { "\033[18$", KEYC_F7|KEYC_SHIFT }, + { "\033[19$", KEYC_F8|KEYC_SHIFT }, + { "\033[20$", KEYC_F9|KEYC_SHIFT }, + { "\033[21$", KEYC_F10|KEYC_SHIFT }, + { "\033[23$", KEYC_F11|KEYC_SHIFT }, + { "\033[24$", KEYC_F12|KEYC_SHIFT }, + { "\033[2$", KEYC_IC|KEYC_SHIFT }, + { "\033[3$", KEYC_DC|KEYC_SHIFT }, + { "\033[7$", KEYC_HOME|KEYC_SHIFT }, + { "\033[8$", KEYC_END|KEYC_SHIFT }, + { "\033[6$", KEYC_NPAGE|KEYC_SHIFT }, + { "\033[5$", KEYC_PPAGE|KEYC_SHIFT }, + + { "\033[11@", KEYC_F1|KEYC_CTRL|KEYC_SHIFT }, + { "\033[12@", KEYC_F2|KEYC_CTRL|KEYC_SHIFT }, + { "\033[13@", KEYC_F3|KEYC_CTRL|KEYC_SHIFT }, + { "\033[14@", KEYC_F4|KEYC_CTRL|KEYC_SHIFT }, + { "\033[15@", KEYC_F5|KEYC_CTRL|KEYC_SHIFT }, + { "\033[17@", KEYC_F6|KEYC_CTRL|KEYC_SHIFT }, + { "\033[18@", KEYC_F7|KEYC_CTRL|KEYC_SHIFT }, + { "\033[19@", KEYC_F8|KEYC_CTRL|KEYC_SHIFT }, + { "\033[20@", KEYC_F9|KEYC_CTRL|KEYC_SHIFT }, + { "\033[21@", KEYC_F10|KEYC_CTRL|KEYC_SHIFT }, + { "\033[23@", KEYC_F11|KEYC_CTRL|KEYC_SHIFT }, + { "\033[24@", KEYC_F12|KEYC_CTRL|KEYC_SHIFT }, + { "\033[2@", KEYC_IC|KEYC_CTRL|KEYC_SHIFT }, + { "\033[3@", KEYC_DC|KEYC_CTRL|KEYC_SHIFT }, + { "\033[7@", KEYC_HOME|KEYC_CTRL|KEYC_SHIFT }, + { "\033[8@", KEYC_END|KEYC_CTRL|KEYC_SHIFT }, + { "\033[6@", KEYC_NPAGE|KEYC_CTRL|KEYC_SHIFT }, + { "\033[5@", KEYC_PPAGE|KEYC_CTRL|KEYC_SHIFT }, + + /* Focus tracking. */ + { "\033[I", KEYC_FOCUS_IN }, + { "\033[O", KEYC_FOCUS_OUT }, + + /* Paste keys. */ + { "\033[200~", KEYC_PASTE_START }, + { "\033[201~", KEYC_PASTE_END }, +}; + +/* Default xterm keys. */ +struct tty_default_key_xterm { + const char *template; + key_code key; +}; +static const struct tty_default_key_xterm tty_default_xterm_keys[] = { + { "\033[1;_P", KEYC_F1 }, + { "\033O1;_P", KEYC_F1 }, + { "\033O_P", KEYC_F1 }, + { "\033[1;_Q", KEYC_F2 }, + { "\033O1;_Q", KEYC_F2 }, + { "\033O_Q", KEYC_F2 }, + { "\033[1;_R", KEYC_F3 }, + { "\033O1;_R", KEYC_F3 }, + { "\033O_R", KEYC_F3 }, + { "\033[1;_S", KEYC_F4 }, + { "\033O1;_S", KEYC_F4 }, + { "\033O_S", KEYC_F4 }, + { "\033[15;_~", KEYC_F5 }, + { "\033[17;_~", KEYC_F6 }, + { "\033[18;_~", KEYC_F7 }, + { "\033[19;_~", KEYC_F8 }, + { "\033[20;_~", KEYC_F9 }, + { "\033[21;_~", KEYC_F10 }, + { "\033[23;_~", KEYC_F11 }, + { "\033[24;_~", KEYC_F12 }, + { "\033[1;_A", KEYC_UP }, + { "\033[1;_B", KEYC_DOWN }, + { "\033[1;_C", KEYC_RIGHT }, + { "\033[1;_D", KEYC_LEFT }, + { "\033[1;_H", KEYC_HOME }, + { "\033[1;_F", KEYC_END }, + { "\033[5;_~", KEYC_PPAGE }, + { "\033[6;_~", KEYC_NPAGE }, + { "\033[2;_~", KEYC_IC }, + { "\033[3;_~", KEYC_DC }, +}; +static const key_code tty_default_xterm_modifiers[] = { + 0, + 0, + KEYC_SHIFT, + KEYC_META|KEYC_IMPLIED_META, + KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META, + KEYC_CTRL, + KEYC_SHIFT|KEYC_CTRL, + KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL, + KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL, + KEYC_META|KEYC_IMPLIED_META +}; + +/* + * Default terminfo(5) keys. Any keys that have builtin modifiers (that is, + * where the key itself contains the modifiers) has the KEYC_XTERM flag set so + * a leading escape is not treated as meta (and probably removed). + */ +struct tty_default_key_code { + enum tty_code_code code; + key_code key; +}; +static const struct tty_default_key_code tty_default_code_keys[] = { + /* Function keys. */ + { TTYC_KF1, KEYC_F1 }, + { TTYC_KF2, KEYC_F2 }, + { TTYC_KF3, KEYC_F3 }, + { TTYC_KF4, KEYC_F4 }, + { TTYC_KF5, KEYC_F5 }, + { TTYC_KF6, KEYC_F6 }, + { TTYC_KF7, KEYC_F7 }, + { TTYC_KF8, KEYC_F8 }, + { TTYC_KF9, KEYC_F9 }, + { TTYC_KF10, KEYC_F10 }, + { TTYC_KF11, KEYC_F11 }, + { TTYC_KF12, KEYC_F12 }, + + { TTYC_KF13, KEYC_F1|KEYC_SHIFT }, + { TTYC_KF14, KEYC_F2|KEYC_SHIFT }, + { TTYC_KF15, KEYC_F3|KEYC_SHIFT }, + { TTYC_KF16, KEYC_F4|KEYC_SHIFT }, + { TTYC_KF17, KEYC_F5|KEYC_SHIFT }, + { TTYC_KF18, KEYC_F6|KEYC_SHIFT }, + { TTYC_KF19, KEYC_F7|KEYC_SHIFT }, + { TTYC_KF20, KEYC_F8|KEYC_SHIFT }, + { TTYC_KF21, KEYC_F9|KEYC_SHIFT }, + { TTYC_KF22, KEYC_F10|KEYC_SHIFT }, + { TTYC_KF23, KEYC_F11|KEYC_SHIFT }, + { TTYC_KF24, KEYC_F12|KEYC_SHIFT }, + + { TTYC_KF25, KEYC_F1|KEYC_CTRL }, + { TTYC_KF26, KEYC_F2|KEYC_CTRL }, + { TTYC_KF27, KEYC_F3|KEYC_CTRL }, + { TTYC_KF28, KEYC_F4|KEYC_CTRL }, + { TTYC_KF29, KEYC_F5|KEYC_CTRL }, + { TTYC_KF30, KEYC_F6|KEYC_CTRL }, + { TTYC_KF31, KEYC_F7|KEYC_CTRL }, + { TTYC_KF32, KEYC_F8|KEYC_CTRL }, + { TTYC_KF33, KEYC_F9|KEYC_CTRL }, + { TTYC_KF34, KEYC_F10|KEYC_CTRL }, + { TTYC_KF35, KEYC_F11|KEYC_CTRL }, + { TTYC_KF36, KEYC_F12|KEYC_CTRL }, + + { TTYC_KF37, KEYC_F1|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF38, KEYC_F2|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF39, KEYC_F3|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF40, KEYC_F4|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF41, KEYC_F5|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF42, KEYC_F6|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF43, KEYC_F7|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF44, KEYC_F8|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF45, KEYC_F9|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF46, KEYC_F10|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF47, KEYC_F11|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KF48, KEYC_F12|KEYC_SHIFT|KEYC_CTRL }, + + { TTYC_KF49, KEYC_F1|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF50, KEYC_F2|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF51, KEYC_F3|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF52, KEYC_F4|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF53, KEYC_F5|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF54, KEYC_F6|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF55, KEYC_F7|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF56, KEYC_F8|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF57, KEYC_F9|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF58, KEYC_F10|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF59, KEYC_F11|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KF60, KEYC_F12|KEYC_META|KEYC_IMPLIED_META }, + + { TTYC_KF61, KEYC_F1|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT }, + { TTYC_KF62, KEYC_F2|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT }, + { TTYC_KF63, KEYC_F3|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT }, + + { TTYC_KICH1, KEYC_IC }, + { TTYC_KDCH1, KEYC_DC }, + { TTYC_KHOME, KEYC_HOME }, + { TTYC_KEND, KEYC_END }, + { TTYC_KNP, KEYC_NPAGE }, + { TTYC_KPP, KEYC_PPAGE }, + { TTYC_KCBT, KEYC_BTAB }, + + /* Arrow keys from terminfo. */ + { TTYC_KCUU1, KEYC_UP|KEYC_CURSOR }, + { TTYC_KCUD1, KEYC_DOWN|KEYC_CURSOR }, + { TTYC_KCUB1, KEYC_LEFT|KEYC_CURSOR }, + { TTYC_KCUF1, KEYC_RIGHT|KEYC_CURSOR }, + + /* Key and modifier capabilities. */ + { TTYC_KDC2, KEYC_DC|KEYC_SHIFT }, + { TTYC_KDC3, KEYC_DC|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KDC4, KEYC_DC|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KDC5, KEYC_DC|KEYC_CTRL }, + { TTYC_KDC6, KEYC_DC|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KDC7, KEYC_DC|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KIND, KEYC_DOWN|KEYC_SHIFT }, + { TTYC_KDN2, KEYC_DOWN|KEYC_SHIFT }, + { TTYC_KDN3, KEYC_DOWN|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KDN4, KEYC_DOWN|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KDN5, KEYC_DOWN|KEYC_CTRL }, + { TTYC_KDN6, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KDN7, KEYC_DOWN|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KEND2, KEYC_END|KEYC_SHIFT }, + { TTYC_KEND3, KEYC_END|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KEND4, KEYC_END|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KEND5, KEYC_END|KEYC_CTRL }, + { TTYC_KEND6, KEYC_END|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KEND7, KEYC_END|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KHOM2, KEYC_HOME|KEYC_SHIFT }, + { TTYC_KHOM3, KEYC_HOME|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KHOM4, KEYC_HOME|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KHOM5, KEYC_HOME|KEYC_CTRL }, + { TTYC_KHOM6, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KHOM7, KEYC_HOME|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KIC2, KEYC_IC|KEYC_SHIFT }, + { TTYC_KIC3, KEYC_IC|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KIC4, KEYC_IC|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KIC5, KEYC_IC|KEYC_CTRL }, + { TTYC_KIC6, KEYC_IC|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KIC7, KEYC_IC|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KLFT2, KEYC_LEFT|KEYC_SHIFT }, + { TTYC_KLFT3, KEYC_LEFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KLFT4, KEYC_LEFT|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KLFT5, KEYC_LEFT|KEYC_CTRL }, + { TTYC_KLFT6, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KLFT7, KEYC_LEFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KNXT2, KEYC_NPAGE|KEYC_SHIFT }, + { TTYC_KNXT3, KEYC_NPAGE|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KNXT4, KEYC_NPAGE|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KNXT5, KEYC_NPAGE|KEYC_CTRL }, + { TTYC_KNXT6, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KNXT7, KEYC_NPAGE|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KPRV2, KEYC_PPAGE|KEYC_SHIFT }, + { TTYC_KPRV3, KEYC_PPAGE|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KPRV4, KEYC_PPAGE|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KPRV5, KEYC_PPAGE|KEYC_CTRL }, + { TTYC_KPRV6, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KPRV7, KEYC_PPAGE|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KRIT2, KEYC_RIGHT|KEYC_SHIFT }, + { TTYC_KRIT3, KEYC_RIGHT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KRIT4, KEYC_RIGHT|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KRIT5, KEYC_RIGHT|KEYC_CTRL }, + { TTYC_KRIT6, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KRIT7, KEYC_RIGHT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, + { TTYC_KRI, KEYC_UP|KEYC_SHIFT }, + { TTYC_KUP2, KEYC_UP|KEYC_SHIFT }, + { TTYC_KUP3, KEYC_UP|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KUP4, KEYC_UP|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META }, + { TTYC_KUP5, KEYC_UP|KEYC_CTRL }, + { TTYC_KUP6, KEYC_UP|KEYC_SHIFT|KEYC_CTRL }, + { TTYC_KUP7, KEYC_UP|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL }, +}; + +/* 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, 1); + 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_xterm *tdkx; + const struct tty_default_key_code *tdkc; + u_int i, j; + const char *s; + struct options_entry *o; + struct options_array_item *a; + union options_value *ov; + char copy[16]; + key_code key; + + if (tty->key_tree != NULL) + tty_keys_free(tty); + tty->key_tree = NULL; + + for (i = 0; i < nitems(tty_default_xterm_keys); i++) { + tdkx = &tty_default_xterm_keys[i]; + for (j = 2; j < nitems(tty_default_xterm_modifiers); j++) { + strlcpy(copy, tdkx->template, sizeof copy); + copy[strcspn(copy, "_")] = '0' + j; + + key = tdkx->key|tty_default_xterm_modifiers[j]; + tty_keys_add(tty, copy, key); + } + } + 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; + utf8_char uc; + u_int i; + + 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 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_from_data(&ud, &uc) != UTF8_DONE) + return (-1); + *key = uc; + + log_debug("%s: UTF-8 key %.*s %#llx", c->name, (int)ud.size, + ud.data, *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; + + /* 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 an extended device attributes response? */ + switch (tty_keys_extended_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 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; + } + + /* Is this an extended key press? */ + switch (tty_keys_extended_key(tty, buf, len, &size, &key)) { + case 0: /* yes */ + goto complete_key; + case -1: /* no, or not valid */ + break; + 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_IMPLIED_META) { + /* + * 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_META; + 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_META; + 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_MODIFIERS)|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) { + c->flags &= ~CLIENT_FOCUSED; + window_update_focus(c->session->curw->window); + notify_client("client-focus-out", c); + } else if (key == KEYC_FOCUS_IN) { + c->flags |= CLIENT_FOCUSED; + notify_client("client-focus-in", c); + window_update_focus(c->session->curw->window); + } + + /* 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 extended key input. This has two forms: \033[27;m;k~ and \033[k;mu, + * where k is key as a number and m is a modifier. Returns 0 for success, -1 + * for failure, 1 for partial; + */ +static int +tty_keys_extended_key(struct tty *tty, const char *buf, size_t len, + size_t *size, key_code *key) +{ + struct client *c = tty->client; + size_t end; + u_int number, modifiers; + char tmp[64]; + cc_t bspace; + key_code nkey; + key_code onlykey; + + *size = 0; + + /* 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); + + /* + * Look for a terminator. Stop at either '~' or anything that isn't a + * number or ';'. + */ + for (end = 2; end < len && end != sizeof tmp; end++) { + if (buf[end] == '~') + break; + if (!isdigit((u_char)buf[end]) && buf[end] != ';') + break; + } + if (end == len) + return (1); + if (end == sizeof tmp || (buf[end] != '~' && buf[end] != 'u')) + return (-1); + + /* Copy to the buffer. */ + memcpy(tmp, buf + 2, end); + tmp[end] = '\0'; + + /* Try to parse either form of key. */ + if (buf[end] == '~') { + if (sscanf(tmp, "27;%u;%u", &modifiers, &number) != 2) + return (-1); + } else { + if (sscanf(tmp ,"%u;%u", &number, &modifiers) != 2) + return (-1); + } + *size = end + 1; + + /* Store the key. */ + bspace = tty->tio.c_cc[VERASE]; + if (bspace != _POSIX_VDISABLE && number == bspace) + nkey = KEYC_BSPACE; + else + nkey = number; + + /* Update the modifiers. */ + switch (modifiers) { + case 2: + nkey |= KEYC_SHIFT; + break; + case 3: + nkey |= (KEYC_META|KEYC_IMPLIED_META); + break; + case 4: + nkey |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META); + break; + case 5: + nkey |= KEYC_CTRL; + break; + case 6: + nkey |= (KEYC_SHIFT|KEYC_CTRL); + break; + case 7: + nkey |= (KEYC_META|KEYC_CTRL); + break; + case 8: + nkey |= (KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL); + break; + case 9: + nkey |= (KEYC_META|KEYC_IMPLIED_META); + break; + default: + *key = KEYC_NONE; + break; + } + + /* + * Don't allow both KEYC_CTRL and as an implied modifier. Also convert + * C-X into C-x and so on. + */ + if (nkey & KEYC_CTRL) { + onlykey = (nkey & KEYC_MASK_KEY); + if (onlykey < 32 && + onlykey != 9 && + onlykey != 13 && + onlykey != 27) + /* nothing */; + else if (onlykey >= 97 && onlykey <= 122) + onlykey -= 96; + else if (onlykey >= 64 && onlykey <= 95) + onlykey -= 64; + else if (onlykey == 32) + onlykey = 0; + else if (onlykey == 63) + onlykey = 127; + else + onlykey |= KEYC_CTRL; + nkey = onlykey|((nkey & KEYC_MASK_MODIFIERS) & ~KEYC_CTRL); + } + + if (log_get_level() != 0) { + log_debug("%s: extended key %.*s is %llx (%s)", c->name, + (int)*size, buf, nkey, key_string_lookup_key(nkey, 1)); + } + *key = nkey; + return (0); +} + +/* + * 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 < MOUSE_PARAM_BTN_OFF || + x < MOUSE_PARAM_POS_OFF || + y < MOUSE_PARAM_POS_OFF) + return (-1); + b -= MOUSE_PARAM_BTN_OFF; + x -= MOUSE_PARAM_POS_OFF; + y -= MOUSE_PARAM_POS_OFF; + } 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' && MOUSE_WHEEL(sgr_b)) + 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(struct tty *tty, const char *buf, size_t len, size_t *size) +{ + struct client *c = tty->client; + struct window_pane *wp; + size_t end, terminator, needed; + char *copy, *out; + int outlen; + u_int i; + + *size = 0; + + /* First five 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; + + /* Adjust end so that it points to the start of the terminator. */ + end -= terminator - 1; + + /* Get the second argument. */ + while (end != 0 && *buf != ';') { + buf++; + end--; + } + if (end == 0 || end == 1) + return (0); + buf++; + end--; + + /* If we did not request this, ignore it. */ + if (~tty->flags & TTY_OSC52QUERY) + return (0); + tty->flags &= ~TTY_OSC52QUERY; + evtimer_del(&tty->clipboard_timer); + + /* 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 and forward to panes. */ + log_debug("%s: %.*s", __func__, outlen, out); + if (c->flags & CLIENT_CLIPBOARDBUFFER) { + paste_add(NULL, out, outlen); + c->flags &= ~CLIENT_CLIPBOARDBUFFER; + } + for (i = 0; i < c->clipboard_npanes; i++) { + wp = window_pane_find_by_id(c->clipboard_panes[i]); + if (wp != NULL) + input_reply_clipboard(wp->event, out, outlen, "\033\\"); + } + free(c->clipboard_panes); + c->clipboard_panes = NULL; + c->clipboard_npanes = 0; + + return (0); +} + +/* + * Handle secondary 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; + + *size = 0; + if (tty->flags & TTY_HAVEDA) + return (-1); + + /* + * First three bytes are always \033[>. Some older Terminal.app + * versions respond as for DA (\033[?) so accept and ignore that. + */ + if (buf[0] != '\033') + return (-1); + if (len == 1) + return (1); + if (buf[1] != '[') + return (-1); + if (len == 2) + return (1); + if (buf[2] != '>' && buf[2] != '?') + return (-1); + if (len == 3) + return (1); + + /* Copy the rest up to a 'c'. */ + for (i = 0; i < (sizeof tmp) - 1; i++) { + if (3 + i == len) + return (1); + if (buf[3 + i] == 'c') + break; + tmp[i] = buf[3 + i]; + } + if (i == (sizeof tmp) - 1) + return (-1); + tmp[i] = '\0'; + *size = 4 + i; + + /* Ignore DA response. */ + if (buf[2] == '?') + return (0); + + /* Convert all arguments to numbers. */ + cp = tmp; + while ((next = strsep(&cp, ";")) != NULL) { + p[n] = strtoul(next, &endptr, 10); + if (*endptr != '\0') + p[n] = 0; + n++; + } + + /* Add terminal features. */ + switch (p[0]) { + case 41: /* VT420 */ + tty_add_features(&c->term_features, "margins,rectfill", ","); + break; + case 'M': /* mintty */ + tty_default_features(&c->term_features, "mintty", 0); + break; + case 'T': /* tmux */ + tty_default_features(&c->term_features, "tmux", 0); + break; + case 'U': /* rxvt-unicode */ + tty_default_features(&c->term_features, "rxvt-unicode", 0); + break; + } + log_debug("%s: received secondary DA %.*s", c->name, (int)*size, buf); + + tty_update_features(tty); + tty->flags |= TTY_HAVEDA; + + return (0); +} + +/* + * Handle extended device attributes input. Returns 0 for success, -1 for + * failure, 1 for partial. + */ +static int +tty_keys_extended_device_attributes(struct tty *tty, const char *buf, + size_t len, size_t *size) +{ + struct client *c = tty->client; + u_int i; + char tmp[128]; + + *size = 0; + if (tty->flags & TTY_HAVEXDA) + return (-1); + + /* First four bytes are always \033P>|. */ + if (buf[0] != '\033') + return (-1); + if (len == 1) + return (1); + if (buf[1] != 'P') + return (-1); + if (len == 2) + return (1); + if (buf[2] != '>') + return (-1); + if (len == 3) + return (1); + if (buf[3] != '|') + return (-1); + if (len == 4) + return (1); + + /* Copy the rest up to a '\033\\'. */ + for (i = 0; i < (sizeof tmp) - 1; i++) { + if (4 + i == len) + return (1); + if (buf[4 + i - 1] == '\033' && buf[4 + i] == '\\') + break; + tmp[i] = buf[4 + i]; + } + if (i == (sizeof tmp) - 1) + return (-1); + tmp[i - 1] = '\0'; + *size = 5 + i; + + /* Add terminal features. */ + if (strncmp(tmp, "iTerm2 ", 7) == 0) + tty_default_features(&c->term_features, "iTerm2", 0); + else if (strncmp(tmp, "tmux ", 5) == 0) + tty_default_features(&c->term_features, "tmux", 0); + else if (strncmp(tmp, "XTerm(", 6) == 0) + tty_default_features(&c->term_features, "XTerm", 0); + else if (strncmp(tmp, "mintty ", 7) == 0) + tty_default_features(&c->term_features, "mintty", 0); + log_debug("%s: received extended DA %.*s", c->name, (int)*size, buf); + + free(c->term_type); + c->term_type = xstrdup(tmp); + + tty_update_features(tty); + tty->flags |= TTY_HAVEXDA; + + return (0); +} |