/* $OpenBSD: tty-keys.c,v 1.167 2023/06/30 13:19:32 nicm Exp $ */ /* * Copyright (c) 2007 Nicholas Marriott * * 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 #include #include #include #include #include #include #include #include #include #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_device_attributes2(struct tty *, const char *, size_t, size_t *); static int tty_keys_extended_device_attributes(struct tty *, const char *, size_t, size_t *); static int tty_keys_colours(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 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 arrow 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 function keys. */ { "\033[11~", KEYC_F1 }, { "\033[12~", KEYC_F2 }, { "\033[13~", KEYC_F3 }, { "\033[14~", 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_F1|KEYC_SHIFT }, { "\033[24~", KEYC_F2|KEYC_SHIFT }, { "\033[25~", KEYC_F3|KEYC_SHIFT }, { "\033[26~", KEYC_F4|KEYC_SHIFT }, { "\033[28~", KEYC_F5|KEYC_SHIFT }, { "\033[29~", KEYC_F6|KEYC_SHIFT }, { "\033[31~", KEYC_F7|KEYC_SHIFT }, { "\033[32~", KEYC_F8|KEYC_SHIFT }, { "\033[33~", KEYC_F9|KEYC_SHIFT }, { "\033[34~", KEYC_F10|KEYC_SHIFT }, { "\033[23$", KEYC_F11|KEYC_SHIFT }, { "\033[24$", KEYC_F12|KEYC_SHIFT }, { "\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[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 }, /* Focus tracking. */ { "\033[I", KEYC_FOCUS_IN }, { "\033[O", KEYC_FOCUS_OUT }, /* Paste keys. */ { "\033[200~", KEYC_PASTE_START }, { "\033[201~", KEYC_PASTE_END }, /* Extended keys. */ { "\033[1;5Z", '\011'|KEYC_CTRL|KEYC_SHIFT }, }; /* 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 primary 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 secondary device attributes response? */ switch (tty_keys_device_attributes2(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 colours response? */ switch (tty_keys_colours(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"); if (delay == 0) delay = 1; 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. */ if (modifiers > 0) { modifiers--; if (modifiers & 1) nkey |= KEYC_SHIFT; if (modifiers & 2) nkey |= (KEYC_META|KEYC_IMPLIED_META); /* Alt */ if (modifiers & 4) nkey |= KEYC_CTRL; if (modifiers & 8) nkey |= (KEYC_META|KEYC_IMPLIED_META); /* Meta */ } /* * 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), -2 if an invalid mouse * sequence. */ 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 (-2); 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 (-2); 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 = 0, 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 primary 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; int *features = &c->term_features; u_int i, n = 0; char tmp[128], *endptr, p[32] = { 0 }, *cp, *next; *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); i++) { if (3 + i == len) return (1); if (buf[3 + i] == 'c') break; tmp[i] = buf[3 + i]; } if (i == (sizeof tmp)) return (-1); tmp[i] = '\0'; *size = 4 + i; /* Convert all arguments to numbers. */ cp = tmp; while ((next = strsep(&cp, ";")) != NULL) { p[n] = strtoul(next, &endptr, 10); if (*endptr != '\0') p[n] = 0; if (++n == nitems(p)) break; } /* Add terminal features. */ switch (p[0]) { case 62: /* VT220 */ case 63: /* VT320 */ case 64: /* VT420 */ for (i = 1; i < n; i++) { log_debug("%s: DA feature: %d", c->name, p[i]); if (p[i] == 4) tty_add_features(features, "sixel", ","); } break; } log_debug("%s: received primary DA %.*s", c->name, (int)*size, buf); tty_update_features(tty); tty->flags |= TTY_HAVEDA; return (0); } /* * Handle secondary device attributes input. Returns 0 for success, -1 for * failure, 1 for partial. */ static int tty_keys_device_attributes2(struct tty *tty, const char *buf, size_t len, size_t *size) { struct client *c = tty->client; int *features = &c->term_features; u_int i, n = 0; char tmp[128], *endptr, p[32] = { 0 }, *cp, *next; *size = 0; if (tty->flags & TTY_HAVEDA2) 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); i++) { if (3 + i == len) return (1); if (buf[3 + i] == 'c') break; tmp[i] = buf[3 + i]; } if (i == (sizeof tmp)) return (-1); tmp[i] = '\0'; *size = 4 + i; /* Convert all arguments to numbers. */ cp = tmp; while ((next = strsep(&cp, ";")) != NULL) { p[n] = strtoul(next, &endptr, 10); if (*endptr != '\0') p[n] = 0; if (++n == nitems(p)) break; } /* Add terminal features. */ switch (p[0]) { case 41: /* VT420 */ tty_add_features(features, "margins,rectfill", ","); break; case 'M': /* mintty */ tty_default_features(features, "mintty", 0); break; case 'T': /* tmux */ tty_default_features(features, "tmux", 0); break; case 'U': /* rxvt-unicode */ tty_default_features(features, "rxvt-unicode", 0); break; } log_debug("%s: received secondary DA %.*s", c->name, (int)*size, buf); tty_update_features(tty); tty->flags |= TTY_HAVEDA2; 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; int *features = &c->term_features; 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 \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(features, "iTerm2", 0); else if (strncmp(tmp, "tmux ", 5) == 0) tty_default_features(features, "tmux", 0); else if (strncmp(tmp, "XTerm(", 6) == 0) tty_default_features(features, "XTerm", 0); else if (strncmp(tmp, "mintty ", 7) == 0) tty_default_features(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); } /* * Handle foreground or background input. Returns 0 for success, -1 for * failure, 1 for partial. */ static int tty_keys_colours(struct tty *tty, const char *buf, size_t len, size_t *size) { struct client *c = tty->client; u_int i; char tmp[128]; int n; *size = 0; if ((tty->flags & TTY_HAVEFG) && (tty->flags & TTY_HAVEBG)) return (-1); /* First four bytes are always \033]1 and 0 or 1 and ;. */ if (buf[0] != '\033') return (-1); if (len == 1) return (1); if (buf[1] != ']') return (-1); if (len == 2) return (1); if (buf[2] != '1') return (-1); if (len == 3) return (1); if (buf[3] != '0' && buf[3] != '1') return (-1); if (len == 4) return (1); if (buf[4] != ';') return (-1); if (len == 5) return (1); /* Copy the rest up to \033\ or \007. */ for (i = 0; i < (sizeof tmp) - 1; i++) { if (5 + i == len) return (1); if (buf[5 + i - 1] == '\033' && buf[5 + i] == '\\') break; if (buf[5 + i] == '\007') break; tmp[i] = buf[5 + i]; } if (i == (sizeof tmp) - 1) return (-1); if (tmp[i - 1] == '\033') tmp[i - 1] = '\0'; else tmp[i] = '\0'; *size = 6 + i; n = colour_parseX11(tmp); if (n != -1 && buf[3] == '0') { log_debug("%s: foreground is %s", c->name, colour_tostring(n)); tty->fg = n; tty->flags |= TTY_HAVEFG; } else if (n != -1) { log_debug("%s: background is %s", c->name, colour_tostring(n)); tty->bg = n; tty->flags |= TTY_HAVEBG; } return (0); }