tmux.h

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #ifndef TMUX_H
  20 #define TMUX_H
  21
  22 #define PROTOCOL_VERSION 6
  23
  24 #include <sys/param.h>
  25 #include <sys/time.h>
  26 #include <sys/queue.h>
  27 #include <sys/tree.h>
  28 #include <sys/uio.h>
  29
  30 #include <bitstring.h>
  31 #include <event.h>
  32 #include <getopt.h>
  33 #include <imsg.h>
  34 #include <limits.h>
  35 #include <signal.h>
  36 #include <stdarg.h>
  37 #include <stdint.h>
  38 #include <stdio.h>
  39 #include <termios.h>
  40
  41 #include "array.h"
  42
  43 extern char    *__progname;
  44 extern char   **environ;
  45
  46 /* Default configuration files. */
  47 #define DEFAULT_CFG ".tmux.conf"
  48 #define SYSTEM_CFG "/etc/tmux.conf"
  49
  50 /* Default prompt history length. */
  51 #define PROMPT_HISTORY 100
  52
  53 /*
  54  * Minimum layout cell size, NOT including separator line. The scroll region
  55  * cannot be one line in height so this must be at least two.
  56  */
  57 #define PANE_MINIMUM 2
  58
  59 /* Automatic name refresh interval, in milliseconds. */
  60 #define NAME_INTERVAL 500
  61
  62 /* Maximum data to buffer for output before suspending writing to a tty. */
  63 #define BACKOFF_THRESHOLD 16384
  64
  65 /*
  66  * Maximum sizes of strings in message data. Don't forget to bump
  67  * PROTOCOL_VERSION if any of these change!
  68  */
  69 #define COMMAND_LENGTH 2048     /* packed argv size */
  70 #define TERMINAL_LENGTH 128     /* length of TERM environment variable */
  71 #define ENVIRON_LENGTH 1024     /* environment variable length */
  72
  73 /*
  74  * UTF-8 data size. This must be big enough to hold combined characters as well
  75  * as single.
  76  */
  77 #define UTF8_SIZE 9
  78
  79 /* Fatal errors. */
  80 #define fatal(msg) log_fatal("%s: %s", __func__, msg);
  81 #define fatalx(msg) log_fatalx("%s: %s", __func__, msg);
  82
  83 /* Definition to shut gcc up about unused arguments. */
  84 #define unused __attribute__ ((unused))
  85
  86 /* Attribute to make gcc check printf-like arguments. */
  87 #define printflike1 __attribute__ ((format (printf, 1, 2)))
  88 #define printflike2 __attribute__ ((format (printf, 2, 3)))
  89 #define printflike3 __attribute__ ((format (printf, 3, 4)))
  90 #define printflike4 __attribute__ ((format (printf, 4, 5)))
  91 #define printflike5 __attribute__ ((format (printf, 5, 6)))
  92
  93 /* Number of items in array. */
  94 #ifndef nitems
  95 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
  96 #endif
  97
  98 /* Bell option values. */
  99 #define BELL_NONE 0
 100 #define BELL_ANY 1
 101 #define BELL_CURRENT 2
 102
 103 /* Special key codes. */
 104 #define KEYC_NONE 0xfff
 105 #define KEYC_BASE 0x1000
 106
 107 /* Key modifier bits. */
 108 #define KEYC_ESCAPE 0x2000
 109 #define KEYC_CTRL 0x4000
 110 #define KEYC_SHIFT 0x8000
 111 #define KEYC_PREFIX 0x10000
 112
 113 /* Mask to obtain key w/o modifiers. */
 114 #define KEYC_MASK_MOD (KEYC_ESCAPE|KEYC_CTRL|KEYC_SHIFT|KEYC_PREFIX)
 115 #define KEYC_MASK_KEY (~KEYC_MASK_MOD)
 116
 117 /* Other key codes. */
 118 enum key_code {
 119         /* Mouse key. */
 120         KEYC_MOUSE = KEYC_BASE,
 121
 122         /* Backspace key. */
 123         KEYC_BSPACE,
 124
 125         /* Function keys. */
 126         KEYC_F1,
 127         KEYC_F2,
 128         KEYC_F3,
 129         KEYC_F4,
 130         KEYC_F5,
 131         KEYC_F6,
 132         KEYC_F7,
 133         KEYC_F8,
 134         KEYC_F9,
 135         KEYC_F10,
 136         KEYC_F11,
 137         KEYC_F12,
 138         KEYC_F13,
 139         KEYC_F14,
 140         KEYC_F15,
 141         KEYC_F16,
 142         KEYC_F17,
 143         KEYC_F18,
 144         KEYC_F19,
 145         KEYC_F20,
 146         KEYC_IC,
 147         KEYC_DC,
 148         KEYC_HOME,
 149         KEYC_END,
 150         KEYC_NPAGE,
 151         KEYC_PPAGE,
 152         KEYC_BTAB,
 153
 154         /* Arrow keys. */
 155         KEYC_UP,
 156         KEYC_DOWN,
 157         KEYC_LEFT,
 158         KEYC_RIGHT,
 159
 160         /* Numeric keypad. */
 161         KEYC_KP_SLASH,
 162         KEYC_KP_STAR,
 163         KEYC_KP_MINUS,
 164         KEYC_KP_SEVEN,
 165         KEYC_KP_EIGHT,
 166         KEYC_KP_NINE,
 167         KEYC_KP_PLUS,
 168         KEYC_KP_FOUR,
 169         KEYC_KP_FIVE,
 170         KEYC_KP_SIX,
 171         KEYC_KP_ONE,
 172         KEYC_KP_TWO,
 173         KEYC_KP_THREE,
 174         KEYC_KP_ENTER,
 175         KEYC_KP_ZERO,
 176         KEYC_KP_PERIOD,
 177 };
 178
 179 /* Termcap codes. */
 180 enum tty_code_code {
 181         TTYC_AX = 0,
 182         TTYC_ACSC,      /* acs_chars, ac */
 183         TTYC_BEL,       /* bell, bl */
 184         TTYC_BLINK,     /* enter_blink_mode, mb */
 185         TTYC_BOLD,      /* enter_bold_mode, md */
 186         TTYC_CIVIS,     /* cursor_invisible, vi */
 187         TTYC_CLEAR,     /* clear_screen, cl */
 188         TTYC_CNORM,     /* cursor_normal, ve */
 189         TTYC_COLORS,    /* max_colors, Co */
 190         TTYC_CSR,       /* change_scroll_region, cs */
 191         TTYC_CUB,       /* parm_left_cursor, LE */
 192         TTYC_CUB1,      /* cursor_left, le */
 193         TTYC_CUD,       /* parm_down_cursor, DO */
 194         TTYC_CUD1,      /* cursor_down, do */
 195         TTYC_CUF,       /* parm_right_cursor, RI */
 196         TTYC_CUF1,      /* cursor_right, nd */
 197         TTYC_CUP,       /* cursor_address, cm */
 198         TTYC_CUU,       /* parm_up_cursor, UP */
 199         TTYC_CUU1,      /* cursor_up, up */
 200         TTYC_DCH,       /* parm_dch, DC */
 201         TTYC_DCH1,      /* delete_character, dc */
 202         TTYC_DIM,       /* enter_dim_mode, mh */
 203         TTYC_DL,        /* parm_delete_line, DL */
 204         TTYC_DL1,       /* delete_line, dl */
 205         TTYC_EL,        /* clr_eol, ce */
 206         TTYC_EL1,       /* clr_bol, cb */
 207         TTYC_ENACS,     /* ena_acs, eA */
 208         TTYC_FSL,       /* from_status_line, fsl */
 209         TTYC_HOME,      /* cursor_home, ho */
 210         TTYC_HPA,       /* column_address, ch */
 211         TTYC_ICH,       /* parm_ich, IC */
 212         TTYC_ICH1,      /* insert_character, ic */
 213         TTYC_IL,        /* parm_insert_line, IL */
 214         TTYC_IL1,       /* insert_line, il */
 215         TTYC_INVIS,     /* enter_secure_mode, mk */
 216         TTYC_IS1,       /* init_1string, i1 */
 217         TTYC_IS2,       /* init_2string, i2 */
 218         TTYC_IS3,       /* init_3string, i3 */
 219         TTYC_KCBT,      /* key_btab, kB */
 220         TTYC_KCUB1,     /* key_left, kl */
 221         TTYC_KCUD1,     /* key_down, kd */
 222         TTYC_KCUF1,     /* key_right, kr */
 223         TTYC_KCUU1,     /* key_up, ku */
 224         TTYC_KDC2,
 225         TTYC_KDC3,
 226         TTYC_KDC4,
 227         TTYC_KDC5,
 228         TTYC_KDC6,
 229         TTYC_KDC7,
 230         TTYC_KDCH1,     /* key_dc, kD */
 231         TTYC_KDN2,
 232         TTYC_KDN3,
 233         TTYC_KDN4,
 234         TTYC_KDN5,
 235         TTYC_KDN6,
 236         TTYC_KDN7,
 237         TTYC_KEND,      /* key_end, ke */
 238         TTYC_KEND2,
 239         TTYC_KEND3,
 240         TTYC_KEND4,
 241         TTYC_KEND5,
 242         TTYC_KEND6,
 243         TTYC_KEND7,
 244         TTYC_KF1,       /* key_f1, k1 */
 245         TTYC_KF10,      /* key_f10, k; */
 246         TTYC_KF11,      /* key_f11, F1 */
 247         TTYC_KF12,      /* key_f12, F2 */
 248         TTYC_KF13,      /* key_f13, F3 */
 249         TTYC_KF14,      /* key_f14, F4 */
 250         TTYC_KF15,      /* key_f15, F5 */
 251         TTYC_KF16,      /* key_f16, F6 */
 252         TTYC_KF17,      /* key_f17, F7 */
 253         TTYC_KF18,      /* key_f18, F8 */
 254         TTYC_KF19,      /* key_f19, F9 */
 255         TTYC_KF2,       /* key_f2, k2 */
 256         TTYC_KF20,      /* key_f20, F10 */
 257         TTYC_KF3,       /* key_f3, k3 */
 258         TTYC_KF4,       /* key_f4, k4 */
 259         TTYC_KF5,       /* key_f5, k5 */
 260         TTYC_KF6,       /* key_f6, k6 */
 261         TTYC_KF7,       /* key_f7, k7 */
 262         TTYC_KF8,       /* key_f8, k8 */
 263         TTYC_KF9,       /* key_f9, k9 */
 264         TTYC_KHOM2,
 265         TTYC_KHOM3,
 266         TTYC_KHOM4,
 267         TTYC_KHOM5,
 268         TTYC_KHOM6,
 269         TTYC_KHOM7,
 270         TTYC_KHOME,     /* key_home, kh */
 271         TTYC_KIC2,
 272         TTYC_KIC3,
 273         TTYC_KIC4,
 274         TTYC_KIC5,
 275         TTYC_KIC6,
 276         TTYC_KIC7,
 277         TTYC_KICH1,     /* key_ic, kI */
 278         TTYC_KLFT2,
 279         TTYC_KLFT3,
 280         TTYC_KLFT4,
 281         TTYC_KLFT5,
 282         TTYC_KLFT6,
 283         TTYC_KLFT7,
 284         TTYC_KMOUS,     /* key_mouse, Km */
 285         TTYC_KNP,       /* key_npage, kN */
 286         TTYC_KNXT2,
 287         TTYC_KNXT3,
 288         TTYC_KNXT4,
 289         TTYC_KNXT5,
 290         TTYC_KNXT6,
 291         TTYC_KNXT7,
 292         TTYC_KPP,       /* key_ppage, kP */
 293         TTYC_KPRV2,
 294         TTYC_KPRV3,
 295         TTYC_KPRV4,
 296         TTYC_KPRV5,
 297         TTYC_KPRV6,
 298         TTYC_KPRV7,
 299         TTYC_KRIT2,
 300         TTYC_KRIT3,
 301         TTYC_KRIT4,
 302         TTYC_KRIT5,
 303         TTYC_KRIT6,
 304         TTYC_KRIT7,
 305         TTYC_KUP2,
 306         TTYC_KUP3,
 307         TTYC_KUP4,
 308         TTYC_KUP5,
 309         TTYC_KUP6,
 310         TTYC_KUP7,
 311         TTYC_OP,        /* orig_pair, op */
 312         TTYC_REV,       /* enter_reverse_mode, mr */
 313         TTYC_RI,        /* scroll_reverse, sr */
 314         TTYC_RMACS,     /* exit_alt_charset_mode */
 315         TTYC_RMCUP,     /* exit_ca_mode, te */
 316         TTYC_RMIR,      /* exit_insert_mode, ei */
 317         TTYC_RMKX,      /* keypad_local, ke */
 318         TTYC_SETAB,     /* set_a_background, AB */
 319         TTYC_SETAF,     /* set_a_foreground, AF */
 320         TTYC_SGR0,      /* exit_attribute_mode, me */
 321         TTYC_SITM,      /* enter_italics_mode, it */
 322         TTYC_SMACS,     /* enter_alt_charset_mode, as */
 323         TTYC_SMCUP,     /* enter_ca_mode, ti */
 324         TTYC_SMIR,      /* enter_insert_mode, im */
 325         TTYC_SMKX,      /* keypad_xmit, ks */
 326         TTYC_SMSO,      /* enter_standout_mode, so */
 327         TTYC_SMUL,      /* enter_underline_mode, us */
 328         TTYC_TSL,       /* to_status_line, tsl */
 329         TTYC_VPA,       /* row_address, cv */
 330         TTYC_XENL,      /* eat_newline_glitch, xn */
 331         TTYC_XT,        /* xterm(1)-compatible title, XT */
 332 };
 333 #define NTTYCODE (TTYC_XT + 1)
 334
 335 /* Termcap types. */
 336 enum tty_code_type {
 337         TTYCODE_NONE = 0,
 338         TTYCODE_STRING,
 339         TTYCODE_NUMBER,
 340         TTYCODE_FLAG,
 341 };
 342
 343 /* Termcap code. */
 344 struct tty_code {
 345         enum tty_code_type      type;
 346         union {
 347                 char           *string;
 348                 int             number;
 349                 int             flag;
 350         } value;
 351 };
 352
 353 /* Entry in terminal code table. */
 354 struct tty_term_code_entry {
 355         enum tty_code_code      code;
 356         enum tty_code_type      type;
 357         const char             *name;
 358 };
 359
 360 /* Message codes. */
 361 enum msgtype {
 362         MSG_COMMAND,
 363         MSG_DETACH,
 364         MSG_ERROR,
 365         MSG_EXIT,
 366         MSG_EXITED,
 367         MSG_EXITING,
 368         MSG_IDENTIFY,
 369         MSG_PRINT,
 370         MSG_READY,
 371         MSG_RESIZE,
 372         MSG_SHUTDOWN,
 373         MSG_SUSPEND,
 374         MSG_VERSION,
 375         MSG_WAKEUP,
 376         MSG_ENVIRON,
 377         MSG_UNLOCK,
 378         MSG_LOCK,
 379         MSG_SHELL,
 380         MSG_STDERR,
 381         MSG_STDOUT,
 382         MSG_DETACHKILL
 383 };
 384
 385 /*
 386  * Message data.
 387  *
 388  * Don't forget to bump PROTOCOL_VERSION if any of these change!
 389  */
 390 struct msg_command_data {
 391         pid_t           pid;    /* PID from $TMUX or -1 */
 392         int             idx;    /* index from $TMUX or -1 */
 393
 394         int             argc;
 395         char            argv[COMMAND_LENGTH];
 396 };
 397
 398 struct msg_identify_data {
 399         char            cwd[MAXPATHLEN];
 400
 401         char            term[TERMINAL_LENGTH];
 402
 403 #define IDENTIFY_UTF8 0x1
 404 #define IDENTIFY_256COLOURS 0x2
 405 #define IDENTIFY_88COLOURS 0x4
 406         int             flags;
 407 };
 408
 409 struct msg_lock_data {
 410         char            cmd[COMMAND_LENGTH];
 411 };
 412
 413 struct msg_environ_data {
 414         char            var[ENVIRON_LENGTH];
 415 };
 416
 417 struct msg_shell_data {
 418         char            shell[MAXPATHLEN];
 419 };
 420
 421 struct msg_exit_data {
 422         int             retcode;
 423 };
 424
 425 /* Mode key commands. */
 426 enum mode_key_cmd {
 427         MODEKEY_NONE,
 428         MODEKEY_OTHER,
 429
 430         /* Editing keys. */
 431         MODEKEYEDIT_BACKSPACE,
 432         MODEKEYEDIT_CANCEL,
 433         MODEKEYEDIT_COMPLETE,
 434         MODEKEYEDIT_CURSORLEFT,
 435         MODEKEYEDIT_CURSORRIGHT,
 436         MODEKEYEDIT_DELETE,
 437         MODEKEYEDIT_DELETELINE,
 438         MODEKEYEDIT_DELETETOENDOFLINE,
 439         MODEKEYEDIT_ENDOFLINE,
 440         MODEKEYEDIT_ENTER,
 441         MODEKEYEDIT_HISTORYDOWN,
 442         MODEKEYEDIT_HISTORYUP,
 443         MODEKEYEDIT_PASTE,
 444         MODEKEYEDIT_STARTOFLINE,
 445         MODEKEYEDIT_SWITCHMODE,
 446         MODEKEYEDIT_SWITCHMODEAPPEND,
 447         MODEKEYEDIT_TRANSPOSECHARS,
 448
 449         /* Menu (choice) keys. */
 450         MODEKEYCHOICE_CANCEL,
 451         MODEKEYCHOICE_CHOOSE,
 452         MODEKEYCHOICE_DOWN,
 453         MODEKEYCHOICE_PAGEDOWN,
 454         MODEKEYCHOICE_PAGEUP,
 455         MODEKEYCHOICE_SCROLLDOWN,
 456         MODEKEYCHOICE_SCROLLUP,
 457         MODEKEYCHOICE_UP,
 458
 459         /* Copy keys. */
 460         MODEKEYCOPY_BACKTOINDENTATION,
 461         MODEKEYCOPY_BOTTOMLINE,
 462         MODEKEYCOPY_CANCEL,
 463         MODEKEYCOPY_CLEARSELECTION,
 464         MODEKEYCOPY_COPYLINE,
 465         MODEKEYCOPY_COPYENDOFLINE,
 466         MODEKEYCOPY_COPYSELECTION,
 467         MODEKEYCOPY_DOWN,
 468         MODEKEYCOPY_ENDOFLINE,
 469         MODEKEYCOPY_GOTOLINE,
 470         MODEKEYCOPY_HALFPAGEDOWN,
 471         MODEKEYCOPY_HALFPAGEUP,
 472         MODEKEYCOPY_HISTORYBOTTOM,
 473         MODEKEYCOPY_HISTORYTOP,
 474         MODEKEYCOPY_JUMP,
 475         MODEKEYCOPY_JUMPAGAIN,
 476         MODEKEYCOPY_JUMPREVERSE,
 477         MODEKEYCOPY_JUMPBACK,
 478         MODEKEYCOPY_LEFT,
 479         MODEKEYCOPY_MIDDLELINE,
 480         MODEKEYCOPY_NEXTPAGE,
 481         MODEKEYCOPY_NEXTSPACE,
 482         MODEKEYCOPY_NEXTSPACEEND,
 483         MODEKEYCOPY_NEXTWORD,
 484         MODEKEYCOPY_NEXTWORDEND,
 485         MODEKEYCOPY_PREVIOUSPAGE,
 486         MODEKEYCOPY_PREVIOUSSPACE,
 487         MODEKEYCOPY_PREVIOUSWORD,
 488         MODEKEYCOPY_RECTANGLETOGGLE,
 489         MODEKEYCOPY_RIGHT,
 490         MODEKEYCOPY_SCROLLDOWN,
 491         MODEKEYCOPY_SCROLLUP,
 492         MODEKEYCOPY_SEARCHAGAIN,
 493         MODEKEYCOPY_SEARCHDOWN,
 494         MODEKEYCOPY_SEARCHREVERSE,
 495         MODEKEYCOPY_SEARCHUP,
 496         MODEKEYCOPY_SELECTLINE,
 497         MODEKEYCOPY_STARTNUMBERPREFIX,
 498         MODEKEYCOPY_STARTOFLINE,
 499         MODEKEYCOPY_STARTSELECTION,
 500         MODEKEYCOPY_TOPLINE,
 501         MODEKEYCOPY_UP,
 502 };
 503
 504 /* Entry in the default mode key tables. */
 505 struct mode_key_entry {
 506         int                     key;
 507
 508         /*
 509          * Editing mode for vi: 0 is edit mode, keys not in the table are
 510          * returned as MODEKEY_OTHER; 1 is command mode, keys not in the table
 511          * are returned as MODEKEY_NONE. This is also matched on, allowing some
 512          * keys to be bound in edit mode.
 513          */
 514         int                     mode;
 515         enum mode_key_cmd       cmd;
 516 };
 517
 518 /* Data required while mode keys are in use. */
 519 struct mode_key_data {
 520         struct mode_key_tree   *tree;
 521         int                     mode;
 522 };
 523 #define MODEKEY_EMACS 0
 524 #define MODEKEY_VI 1
 525
 526 /* Binding between a key and a command. */
 527 struct mode_key_binding {
 528         int                     key;
 529
 530         int                     mode;
 531         enum mode_key_cmd       cmd;
 532
 533         SPLAY_ENTRY(mode_key_binding) entry;
 534 };
 535 SPLAY_HEAD(mode_key_tree, mode_key_binding);
 536
 537 /* Command to string mapping. */
 538 struct mode_key_cmdstr {
 539         enum mode_key_cmd        cmd;
 540         const char              *name;
 541 };
 542
 543 /* Named mode key table description. */
 544 struct mode_key_table {
 545         const char                      *name;
 546         const struct mode_key_cmdstr    *cmdstr;
 547         struct mode_key_tree            *tree;
 548         const struct mode_key_entry     *table; /* default entries */
 549 };
 550
 551 /* Modes. */
 552 #define MODE_CURSOR 0x1
 553 #define MODE_INSERT 0x2
 554 #define MODE_KCURSOR 0x4
 555 #define MODE_KKEYPAD 0x8        /* set = application, clear = number */
 556 #define MODE_WRAP 0x10          /* whether lines wrap */
 557 #define MODE_MOUSE_STANDARD 0x20
 558 #define MODE_MOUSE_BUTTON 0x40
 559 #define MODE_MOUSE_ANY 0x80
 560 #define MODE_MOUSE_UTF8 0x100
 561
 562 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ANY)
 563
 564 /*
 565  * A single UTF-8 character.
 566  *
 567  * The data member in this must be UTF8_SIZE to allow screen_write_copy to
 568  * reinject stored UTF-8 data back into screen_write_cell after combining (ugh
 569  * XXX XXX).
 570  */
 571 struct utf8_data {
 572         u_char  data[UTF8_SIZE];
 573
 574         size_t  have;
 575         size_t  size;
 576
 577         u_int   width;
 578 };
 579
 580 /* Grid output. */
 581 #if defined(DEBUG) && \
 582     ((defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
 583      (defined(__GNUC__) && __GNUC__ >= 3))
 584 #define GRID_DEBUG(gd, fmt, ...) log_debug2("%s: (sx=%u, sy=%u, hsize=%u) " \
 585     fmt, __func__, (gd)->sx, (gd)->sy, (gd)->hsize, ## __VA_ARGS__)
 586 #else
 587 #define GRID_DEBUG(...)
 588 #endif
 589
 590 /* Grid attributes. */
 591 #define GRID_ATTR_BRIGHT 0x1
 592 #define GRID_ATTR_DIM 0x2
 593 #define GRID_ATTR_UNDERSCORE 0x4
 594 #define GRID_ATTR_BLINK 0x8
 595 #define GRID_ATTR_REVERSE 0x10
 596 #define GRID_ATTR_HIDDEN 0x20
 597 #define GRID_ATTR_ITALICS 0x40
 598 #define GRID_ATTR_CHARSET 0x80  /* alternative character set */
 599
 600 /* Grid flags. */
 601 #define GRID_FLAG_FG256 0x1
 602 #define GRID_FLAG_BG256 0x2
 603 #define GRID_FLAG_PADDING 0x4
 604 #define GRID_FLAG_UTF8 0x8
 605
 606 /* Grid line flags. */
 607 #define GRID_LINE_WRAPPED 0x1
 608
 609 /* Grid cell data. */
 610 struct grid_cell {
 611         u_char  attr;
 612         u_char  flags;
 613         u_char  fg;
 614         u_char  bg;
 615         u_char  data;
 616 } __packed;
 617
 618 /* Grid cell UTF-8 data. Used instead of data in grid_cell for UTF-8 cells. */
 619 struct grid_utf8 {
 620         u_char  width;
 621         u_char  data[UTF8_SIZE];
 622 } __packed;
 623
 624 /* Grid line. */
 625 struct grid_line {
 626         u_int   cellsize;
 627         struct grid_cell *celldata;
 628
 629         u_int   utf8size;
 630         struct grid_utf8 *utf8data;
 631
 632         int     flags;
 633 } __packed;
 634
 635 /* Entire grid of cells. */
 636 struct grid {
 637         int     flags;
 638 #define GRID_HISTORY 0x1        /* scroll lines into history */
 639
 640         u_int   sx;
 641         u_int   sy;
 642
 643         u_int   hsize;
 644         u_int   hlimit;
 645
 646         struct grid_line *linedata;
 647 };
 648
 649 /* Option data structures. */
 650 struct options_entry {
 651         char            *name;
 652
 653         enum {
 654                 OPTIONS_STRING,
 655                 OPTIONS_NUMBER,
 656                 OPTIONS_DATA,
 657         } type;
 658
 659         char            *str;
 660         long long        num;
 661         void            *data;
 662
 663         void             (*freefn)(void *);
 664
 665         SPLAY_ENTRY(options_entry) entry;
 666 };
 667
 668 struct options {
 669         SPLAY_HEAD(options_tree, options_entry) tree;
 670         struct options  *parent;
 671 };
 672
 673 /* Key list for prefix option. */
 674 ARRAY_DECL(keylist, int);
 675
 676 /* Scheduled job. */
 677 struct job {
 678         char            *cmd;
 679         pid_t            pid;
 680         int              status;
 681
 682         int              fd;
 683         struct bufferevent *event;
 684
 685         void            (*callbackfn)(struct job *);
 686         void            (*freefn)(void *);
 687         void            *data;
 688
 689         LIST_ENTRY(job)  lentry;
 690 };
 691 LIST_HEAD(joblist, job);
 692
 693 /* Screen selection. */
 694 struct screen_sel {
 695         int              flag;
 696         int              rectflag;
 697
 698         u_int            sx;
 699         u_int            sy;
 700
 701         u_int            ex;
 702         u_int            ey;
 703
 704         struct grid_cell cell;
 705 };
 706
 707 /* Virtual screen. */
 708 struct screen {
 709         char            *title;
 710
 711         struct grid     *grid;          /* grid data */
 712
 713         u_int            cx;            /* cursor x */
 714         u_int            cy;            /* cursor y */
 715
 716         u_int            rupper;        /* scroll region top */
 717         u_int            rlower;        /* scroll region bottom */
 718
 719         int              mode;
 720
 721         bitstr_t        *tabs;
 722
 723         struct screen_sel sel;
 724 };
 725
 726 /* Screen write context. */
 727 struct screen_write_ctx {
 728         struct window_pane *wp;
 729         struct screen   *s;
 730 };
 731
 732 /* Screen size. */
 733 #define screen_size_x(s) ((s)->grid->sx)
 734 #define screen_size_y(s) ((s)->grid->sy)
 735 #define screen_hsize(s) ((s)->grid->hsize)
 736 #define screen_hlimit(s) ((s)->grid->hlimit)
 737
 738 /* Input parser context. */
 739 struct input_ctx {
 740         struct window_pane     *wp;
 741         struct screen_write_ctx ctx;
 742
 743         struct grid_cell        cell;
 744
 745         struct grid_cell        old_cell;
 746         u_int                   old_cx;
 747         u_int                   old_cy;
 748
 749         u_char                  interm_buf[4];
 750         size_t                  interm_len;
 751
 752         u_char                  param_buf[64];
 753         size_t                  param_len;
 754
 755         u_char                  input_buf[256];
 756         size_t                  input_len;
 757
 758         int                     param_list[24]; /* -1 not present */
 759         u_int                   param_list_len;
 760
 761         struct utf8_data        utf8data;
 762
 763         int                     ch;
 764         int                     flags;
 765 #define INPUT_DISCARD 0x1
 766
 767         const struct input_state *state;
 768 };
 769
 770 /*
 771  * Window mode. Windows can be in several modes and this is used to call the
 772  * right function to handle input and output.
 773  */
 774 struct session;
 775 struct window;
 776 struct mouse_event;
 777 struct window_mode {
 778         struct screen *(*init)(struct window_pane *);
 779         void    (*free)(struct window_pane *);
 780         void    (*resize)(struct window_pane *, u_int, u_int);
 781         void    (*key)(struct window_pane *, struct session *, int);
 782         void    (*mouse)(struct window_pane *,
 783                     struct session *, struct mouse_event *);
 784         void    (*timer)(struct window_pane *);
 785 };
 786
 787 /* Child window structure. */
 788 struct window_pane {
 789         u_int            id;
 790
 791         struct window   *window;
 792         struct layout_cell *layout_cell;
 793
 794         u_int            sx;
 795         u_int            sy;
 796
 797         u_int            xoff;
 798         u_int            yoff;
 799
 800         int              flags;
 801 #define PANE_REDRAW 0x1
 802 #define PANE_FREEZE 0x2
 803
 804         char            *cmd;
 805         char            *shell;
 806         char            *cwd;
 807
 808         pid_t            pid;
 809         char             tty[TTY_NAME_MAX];
 810
 811         int              fd;
 812         struct bufferevent *event;
 813
 814         struct input_ctx ictx;
 815
 816         int              pipe_fd;
 817         struct bufferevent *pipe_event;
 818         size_t           pipe_off;
 819
 820         struct screen   *screen;
 821         struct screen    base;
 822
 823         /* Saved in alternative screen mode. */
 824         u_int            saved_cx;
 825         u_int            saved_cy;
 826         struct grid     *saved_grid;
 827         struct grid_cell saved_cell;
 828
 829         const struct window_mode *mode;
 830         void            *modedata;
 831
 832         TAILQ_ENTRY(window_pane) entry;
 833         RB_ENTRY(window_pane) tree_entry;
 834 };
 835 TAILQ_HEAD(window_panes, window_pane);
 836 RB_HEAD(window_pane_tree, window_pane);
 837
 838 /* Window structure. */
 839 struct window {
 840         char            *name;
 841         struct event     name_timer;
 842         struct timeval   silence_timer;
 843
 844         struct window_pane *active;
 845         struct window_pane *last;
 846         struct window_panes panes;
 847
 848         int              lastlayout;
 849         struct layout_cell *layout_root;
 850
 851         u_int            sx;
 852         u_int            sy;
 853
 854         int              flags;
 855 #define WINDOW_BELL 0x1
 856 #define WINDOW_ACTIVITY 0x2
 857 #define WINDOW_REDRAW 0x4
 858 #define WINDOW_SILENCE 0x8
 859
 860         struct options   options;
 861
 862         u_int            references;
 863 };
 864 ARRAY_DECL(windows, struct window *);
 865
 866 /* Entry on local window list. */
 867 struct winlink {
 868         int              idx;
 869         struct window   *window;
 870
 871         size_t           status_width;
 872         struct grid_cell status_cell;
 873         char            *status_text;
 874
 875         int              flags;
 876 #define WINLINK_BELL 0x1
 877 #define WINLINK_ACTIVITY 0x2
 878 #define WINLINK_CONTENT 0x4
 879 #define WINLINK_SILENCE 0x8
 880 #define WINLINK_ALERTFLAGS \
 881     (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_CONTENT|WINLINK_SILENCE)
 882
 883         RB_ENTRY(winlink) entry;
 884         TAILQ_ENTRY(winlink) sentry;
 885 };
 886 RB_HEAD(winlinks, winlink);
 887 TAILQ_HEAD(winlink_stack, winlink);
 888
 889 /* Layout direction. */
 890 enum layout_type {
 891         LAYOUT_LEFTRIGHT,
 892         LAYOUT_TOPBOTTOM,
 893         LAYOUT_WINDOWPANE
 894 };
 895
 896 /* Layout cells queue. */
 897 TAILQ_HEAD(layout_cells, layout_cell);
 898
 899 /* Layout cell. */
 900 struct layout_cell {
 901         enum layout_type type;
 902
 903         struct layout_cell *parent;
 904
 905         u_int            sx;
 906         u_int            sy;
 907
 908         u_int            xoff;
 909         u_int            yoff;
 910
 911         struct window_pane *wp;
 912         struct layout_cells cells;
 913
 914         TAILQ_ENTRY(layout_cell) entry;
 915 };
 916
 917 /* Paste buffer. */
 918 struct paste_buffer {
 919         char            *data;
 920         size_t           size;
 921 };
 922 ARRAY_DECL(paste_stack, struct paste_buffer *);
 923
 924 /* Environment variable. */
 925 struct environ_entry {
 926         char            *name;
 927         char            *value;
 928
 929         RB_ENTRY(environ_entry) entry;
 930 };
 931 RB_HEAD(environ, environ_entry);
 932
 933 /* Client session. */
 934 struct session_group {
 935         TAILQ_HEAD(, session) sessions;
 936
 937         TAILQ_ENTRY(session_group) entry;
 938 };
 939 TAILQ_HEAD(session_groups, session_group);
 940
 941 struct session {
 942         u_int            idx;
 943
 944         char            *name;
 945         char            *cwd;
 946
 947         struct timeval   creation_time;
 948         struct timeval   activity_time;
 949
 950         u_int            sx;
 951         u_int            sy;
 952
 953         struct winlink  *curw;
 954         struct winlink_stack lastw;
 955         struct winlinks  windows;
 956
 957         struct options   options;
 958
 959 #define SESSION_UNATTACHED 0x1  /* not attached to any clients */
 960         int              flags;
 961
 962         struct termios  *tio;
 963
 964         struct environ   environ;
 965
 966         int              wlmouse;
 967
 968         int              references;
 969
 970         TAILQ_ENTRY(session) gentry;
 971         RB_ENTRY(session)    entry;
 972 };
 973 RB_HEAD(sessions, session);
 974 ARRAY_DECL(sessionslist, struct session *);
 975
 976 /* TTY information. */
 977 struct tty_key {
 978         char             ch;
 979         int              key;
 980
 981         struct tty_key  *left;
 982         struct tty_key  *right;
 983
 984         struct tty_key  *next;
 985 };
 986
 987 struct tty_term {
 988         char            *name;
 989         u_int            references;
 990
 991         char             acs[UCHAR_MAX + 1][2];
 992
 993         struct tty_code  codes[NTTYCODE];
 994
 995 #define TERM_256COLOURS 0x1
 996 #define TERM_88COLOURS 0x2
 997 #define TERM_EARLYWRAP 0x4
 998         int              flags;
 999
1000         LIST_ENTRY(tty_term) entry;
1001 };
1002 LIST_HEAD(tty_terms, tty_term);
1003
1004 struct tty {
1005         char            *path;
1006
1007         u_int            sx;
1008         u_int            sy;
1009
1010         u_int            cx;
1011         u_int            cy;
1012
1013         int              mode;
1014
1015         u_int            rlower;
1016         u_int            rupper;
1017
1018         char            *termname;
1019         struct tty_term *term;
1020
1021         int              fd;
1022         struct bufferevent *event;
1023
1024         int              log_fd;
1025
1026         struct termios   tio;
1027
1028         struct grid_cell cell;
1029
1030 #define TTY_NOCURSOR 0x1
1031 #define TTY_FREEZE 0x2
1032 #define TTY_ESCAPE 0x4
1033 #define TTY_UTF8 0x8
1034 #define TTY_STARTED 0x10
1035 #define TTY_OPENED 0x20
1036 #define TTY_BACKOFF 0x40
1037         int              flags;
1038
1039         int              term_flags;
1040
1041         void             (*key_callback)(int, struct mouse_event *, void *);
1042         void            *key_data;
1043         struct event     key_timer;
1044         struct tty_key  *key_tree;
1045 };
1046
1047 /* TTY command context and function pointer. */
1048 struct tty_ctx {
1049         struct window_pane *wp;
1050
1051         const struct grid_cell *cell;
1052         const struct grid_utf8 *utf8;
1053
1054         u_int            num;
1055         void            *ptr;
1056
1057         /*
1058          * Cursor and region position before the screen was updated - this is
1059          * where the command should be applied; the values in the screen have
1060          * already been updated.
1061          */
1062         u_int            ocx;
1063         u_int            ocy;
1064
1065         u_int            orupper;
1066         u_int            orlower;
1067
1068         /* Saved last cell on line. */
1069         struct grid_cell last_cell;
1070         struct grid_utf8 last_utf8;
1071         u_int            last_width;
1072 };
1073
1074 /*
1075  * xterm mouse mode is fairly silly. Buttons are in the bottom two
1076  * bits: 0 button 1; 1 button 2; 2 button 3; 3 buttons released.
1077  *
1078  * Bit 3 is shift; bit 4 is meta; bit 5 control.
1079  *
1080  * Bit 6 is added for mouse buttons 4 and 5.
1081  */
1082 /* Mouse input. */
1083 struct mouse_event {
1084         u_int   b;
1085 #define MOUSE_1 0
1086 #define MOUSE_2 1
1087 #define MOUSE_3 2
1088 #define MOUSE_UP 3
1089 #define MOUSE_BUTTON 3
1090 #define MOUSE_DRAG 32
1091 #define MOUSE_45 64
1092 #define MOUSE_RESIZE_PANE 128 /* marker for resizing */
1093         u_int   x;
1094         u_int   y;
1095 };
1096
1097 /* Saved message entry. */
1098 struct message_entry {
1099         char   *msg;
1100         time_t  msg_time;
1101 };
1102
1103 /* Status output data from a job. */
1104 struct status_out {
1105         char   *cmd;
1106         char   *out;
1107
1108         RB_ENTRY(status_out) entry;
1109 };
1110 RB_HEAD(status_out_tree, status_out);
1111
1112 /* Client connection. */
1113 struct client {
1114         struct imsgbuf   ibuf;
1115         struct event     event;
1116         int              retcode;
1117
1118         struct timeval   creation_time;
1119         struct timeval   activity_time;
1120
1121         struct environ   environ;
1122
1123         char            *title;
1124         char            *cwd;
1125
1126         struct tty       tty;
1127
1128         int              stdin_fd;
1129         void            *stdin_data;
1130         void            (*stdin_callback)(struct client *, void *);
1131         struct bufferevent *stdin_event;
1132
1133         int              stdout_fd;
1134         struct bufferevent *stdout_event;
1135
1136         int              stderr_fd;
1137         struct bufferevent *stderr_event;
1138
1139         struct event     repeat_timer;
1140
1141         struct status_out_tree status_old;
1142         struct status_out_tree status_new;
1143         struct timeval   status_timer;
1144         struct screen    status;
1145
1146 #define CLIENT_TERMINAL 0x1
1147 #define CLIENT_PREFIX 0x2
1148 #define CLIENT_EXIT 0x4
1149 #define CLIENT_REDRAW 0x8
1150 #define CLIENT_STATUS 0x10
1151 #define CLIENT_REPEAT 0x20      /* allow command to repeat within repeat time */
1152 #define CLIENT_SUSPENDED 0x40
1153 #define CLIENT_BAD 0x80
1154 #define CLIENT_IDENTIFY 0x100
1155 #define CLIENT_DEAD 0x200
1156 #define CLIENT_BORDERS 0x400
1157 #define CLIENT_READONLY 0x800
1158 #define CLIENT_BACKOFF 0x1000
1159 #define CLIENT_REDRAWWINDOW 0x2000
1160         int              flags;
1161
1162         struct event     identify_timer;
1163
1164         char            *message_string;
1165         struct event     message_timer;
1166         ARRAY_DECL(, struct message_entry) message_log;
1167
1168         char            *prompt_string;
1169         char            *prompt_buffer;
1170         size_t           prompt_index;
1171         int              (*prompt_callbackfn)(void *, const char *);
1172         void             (*prompt_freefn)(void *);
1173         void            *prompt_data;
1174         u_int            prompt_hindex;
1175
1176 #define PROMPT_SINGLE 0x1
1177         int              prompt_flags;
1178
1179         struct mode_key_data prompt_mdata;
1180
1181         struct session  *session;
1182         struct session  *last_session;
1183
1184         struct mouse_event last_mouse;
1185
1186         int              references;
1187 };
1188 ARRAY_DECL(clients, struct client *);
1189
1190 /* Parsed arguments. */
1191 struct args {
1192         bitstr_t        *flags;
1193         char            *values[SCHAR_MAX]; /* XXX This is awfully big. */
1194
1195         int              argc;
1196         char           **argv;
1197 };
1198
1199 /* Key/command line command. */
1200 struct cmd_ctx {
1201         /*
1202          * curclient is the client where this command was executed if inside
1203          * tmux. This is NULL if the command came from the command-line.
1204          *
1205          * cmdclient is the client which sent the MSG_COMMAND to the server, if
1206          * any. This is NULL unless the command came from the command-line.
1207          *
1208          * cmdclient and curclient may both be NULL if the command is in the
1209          * configuration file.
1210          */
1211         struct client  *curclient;
1212         struct client  *cmdclient;
1213
1214         struct msg_command_data *msgdata;
1215
1216         /* gcc2 doesn't understand attributes on function pointers... */
1217 #if defined(__GNUC__) && __GNUC__ >= 3
1218         void printflike2 (*print)(struct cmd_ctx *, const char *, ...);
1219         void printflike2 (*info)(struct cmd_ctx *, const char *, ...);
1220         void printflike2 (*error)(struct cmd_ctx *, const char *, ...);
1221 #else
1222         void (*print)(struct cmd_ctx *, const char *, ...);
1223         void (*info)(struct cmd_ctx *, const char *, ...);
1224         void (*error)(struct cmd_ctx *, const char *, ...);
1225 #endif
1226 };
1227
1228 struct cmd {
1229         const struct cmd_entry  *entry;
1230         struct args             *args;
1231
1232         TAILQ_ENTRY(cmd)         qentry;
1233 };
1234 struct cmd_list {
1235         int                      references;
1236         TAILQ_HEAD(, cmd)        list;
1237 };
1238
1239 struct cmd_entry {
1240         const char      *name;
1241         const char      *alias;
1242
1243         const char      *args_template;
1244         int              args_lower;
1245         int              args_upper;
1246
1247         const char      *usage;
1248
1249 #define CMD_STARTSERVER 0x1
1250 #define CMD_CANTNEST 0x2
1251 #define CMD_SENDENVIRON 0x4
1252 #define CMD_READONLY 0x8
1253         int              flags;
1254
1255         void             (*key_binding)(struct cmd *, int);
1256         int              (*check)(struct args *);
1257         int              (*exec)(struct cmd *, struct cmd_ctx *);
1258 };
1259
1260 /* Key binding. */
1261 struct key_binding {
1262         int              key;
1263         struct cmd_list *cmdlist;
1264         int              can_repeat;
1265
1266         SPLAY_ENTRY(key_binding) entry;
1267 };
1268 SPLAY_HEAD(key_bindings, key_binding);
1269
1270 /*
1271  * Option table entries. The option table is the user-visible part of the
1272  * option, as opposed to the internal options (struct option) which are just
1273  * number or string.
1274  */
1275 enum options_table_type {
1276         OPTIONS_TABLE_STRING,
1277         OPTIONS_TABLE_NUMBER,
1278         OPTIONS_TABLE_KEYS,
1279         OPTIONS_TABLE_COLOUR,
1280         OPTIONS_TABLE_ATTRIBUTES,
1281         OPTIONS_TABLE_FLAG,
1282         OPTIONS_TABLE_CHOICE
1283 };
1284
1285 struct options_table_entry {
1286         const char             *name;
1287         enum options_table_type type;
1288
1289         u_int                   minimum;
1290         u_int                   maximum;
1291         const char            **choices;
1292
1293         const char             *default_str;
1294         long long               default_num;
1295 };
1296
1297 /* List of configuration causes. */
1298 ARRAY_DECL(causelist, char *);
1299
1300 /* Common command usages. */
1301 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1302 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1303 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1304 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1305 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1306 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1307 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1308 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1309 #define CMD_BUFFER_USAGE "[-b buffer-index]"
1310
1311 /* tmux.c */
1312 extern struct options global_options;
1313 extern struct options global_s_options;
1314 extern struct options global_w_options;
1315 extern struct environ global_environ;
1316 extern struct event_base *ev_base;
1317 extern char     *cfg_file;
1318 extern char     *shell_cmd;
1319 extern int       debug_level;
1320 extern time_t    start_time;
1321 extern char      socket_path[MAXPATHLEN];
1322 extern int       login_shell;
1323 extern char     *environ_path;
1324 extern pid_t     environ_pid;
1325 extern int       environ_idx;
1326 void             logfile(const char *);
1327 const char      *getshell(void);
1328 int              checkshell(const char *);
1329 int              areshell(const char *);
1330 void             setblocking(int, int);
1331 __dead void      shell_exec(const char *, const char *);
1332
1333 /* cfg.c */
1334 extern int       cfg_finished;
1335 extern struct causelist cfg_causes;
1336 void printflike2 cfg_add_cause(struct causelist *, const char *, ...);
1337 int              load_cfg(const char *, struct cmd_ctx *, struct causelist *);
1338
1339 /* mode-key.c */
1340 extern const struct mode_key_table mode_key_tables[];
1341 extern struct mode_key_tree mode_key_tree_vi_edit;
1342 extern struct mode_key_tree mode_key_tree_vi_choice;
1343 extern struct mode_key_tree mode_key_tree_vi_copy;
1344 extern struct mode_key_tree mode_key_tree_emacs_edit;
1345 extern struct mode_key_tree mode_key_tree_emacs_choice;
1346 extern struct mode_key_tree mode_key_tree_emacs_copy;
1347 int     mode_key_cmp(struct mode_key_binding *, struct mode_key_binding *);
1348 SPLAY_PROTOTYPE(mode_key_tree, mode_key_binding, entry, mode_key_cmp);
1349 const char *mode_key_tostring(const struct mode_key_cmdstr *,
1350             enum mode_key_cmd);
1351 enum mode_key_cmd mode_key_fromstring(const struct mode_key_cmdstr *,
1352             const char *);
1353 const struct mode_key_table *mode_key_findtable(const char *);
1354 void    mode_key_init_trees(void);
1355 void    mode_key_init(struct mode_key_data *, struct mode_key_tree *);
1356 enum mode_key_cmd mode_key_lookup(struct mode_key_data *, int);
1357
1358 /* options.c */
1359 int     options_cmp(struct options_entry *, struct options_entry *);
1360 SPLAY_PROTOTYPE(options_tree, options_entry, entry, options_cmp);
1361 void    options_init(struct options *, struct options *);
1362 void    options_free(struct options *);
1363 struct options_entry *options_find1(struct options *, const char *);
1364 struct options_entry *options_find(struct options *, const char *);
1365 void    options_remove(struct options *, const char *);
1366 struct options_entry *printflike3 options_set_string(
1367             struct options *, const char *, const char *, ...);
1368 char   *options_get_string(struct options *, const char *);
1369 struct options_entry *options_set_number(
1370             struct options *, const char *, long long);
1371 long long options_get_number(struct options *, const char *);
1372 struct options_entry *options_set_data(
1373             struct options *, const char *, void *, void (*)(void *));
1374 void   *options_get_data(struct options *, const char *);
1375
1376 /* options-table.c */
1377 extern const struct options_table_entry server_options_table[];
1378 extern const struct options_table_entry session_options_table[];
1379 extern const struct options_table_entry window_options_table[];
1380 void    options_table_populate_tree(
1381             const struct options_table_entry *, struct options *);
1382 const char *options_table_print_entry(
1383             const struct options_table_entry *, struct options_entry *);
1384
1385 /* job.c */
1386 extern struct joblist all_jobs;
1387 struct job *job_run(
1388             const char *, void (*)(struct job *), void (*)(void *), void *);
1389 void    job_free(struct job *);
1390 void    job_died(struct job *, int);
1391
1392 /* environ.c */
1393 int     environ_cmp(struct environ_entry *, struct environ_entry *);
1394 RB_PROTOTYPE(environ, environ_entry, entry, environ_cmp);
1395 void    environ_init(struct environ *);
1396 void    environ_free(struct environ *);
1397 void    environ_copy(struct environ *, struct environ *);
1398 struct environ_entry *environ_find(struct environ *, const char *);
1399 void    environ_set(struct environ *, const char *, const char *);
1400 void    environ_put(struct environ *, const char *);
1401 void    environ_unset(struct environ *, const char *);
1402 void    environ_update(const char *, struct environ *, struct environ *);
1403 void    environ_push(struct environ *);
1404
1405 /* tty.c */
1406 void    tty_raw(struct tty *, const char *);
1407 void    tty_attributes(struct tty *, const struct grid_cell *);
1408 void    tty_reset(struct tty *);
1409 void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1410 void    tty_region(struct tty *, u_int, u_int);
1411 void    tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int);
1412 void    tty_cursor(struct tty *, u_int, u_int);
1413 void    tty_putcode(struct tty *, enum tty_code_code);
1414 void    tty_putcode1(struct tty *, enum tty_code_code, int);
1415 void    tty_putcode2(struct tty *, enum tty_code_code, int, int);
1416 void    tty_puts(struct tty *, const char *);
1417 void    tty_putc(struct tty *, u_char);
1418 void    tty_pututf8(struct tty *, const struct grid_utf8 *);
1419 void    tty_init(struct tty *, int, char *);
1420 int     tty_resize(struct tty *);
1421 void    tty_start_tty(struct tty *);
1422 void    tty_stop_tty(struct tty *);
1423 void    tty_set_title(struct tty *, const char *);
1424 void    tty_update_mode(struct tty *, int);
1425 void    tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int);
1426 int     tty_open(struct tty *, const char *, char **);
1427 void    tty_close(struct tty *);
1428 void    tty_free(struct tty *);
1429 void    tty_write(void (*)(
1430             struct tty *, const struct tty_ctx *), const struct tty_ctx *);
1431 void    tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
1432 void    tty_cmd_cell(struct tty *, const struct tty_ctx *);
1433 void    tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
1434 void    tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
1435 void    tty_cmd_clearline(struct tty *, const struct tty_ctx *);
1436 void    tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
1437 void    tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
1438 void    tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
1439 void    tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
1440 void    tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
1441 void    tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
1442 void    tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
1443 void    tty_cmd_insertline(struct tty *, const struct tty_ctx *);
1444 void    tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
1445 void    tty_cmd_utf8character(struct tty *, const struct tty_ctx *);
1446 void    tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
1447 void    tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
1448
1449 /* tty-term.c */
1450 extern struct tty_terms tty_terms;
1451 extern const struct tty_term_code_entry tty_term_codes[NTTYCODE];
1452 struct tty_term *tty_term_find(char *, int, const char *, char **);
1453 void             tty_term_free(struct tty_term *);
1454 int              tty_term_has(struct tty_term *, enum tty_code_code);
1455 const char      *tty_term_string(struct tty_term *, enum tty_code_code);
1456 const char      *tty_term_string1(struct tty_term *, enum tty_code_code, int);
1457 const char      *tty_term_string2(
1458                      struct tty_term *, enum tty_code_code, int, int);
1459 int              tty_term_number(struct tty_term *, enum tty_code_code);
1460 int              tty_term_flag(struct tty_term *, enum tty_code_code);
1461
1462 /* tty-acs.c */
1463 const char      *tty_acs_get(struct tty *, u_char);
1464
1465 /* tty-keys.c */
1466 void    tty_keys_init(struct tty *);
1467 void    tty_keys_free(struct tty *);
1468 int     tty_keys_next(struct tty *);
1469
1470 /* paste.c */
1471 struct paste_buffer *paste_walk_stack(struct paste_stack *, u_int *);
1472 struct paste_buffer *paste_get_top(struct paste_stack *);
1473 struct paste_buffer *paste_get_index(struct paste_stack *, u_int);
1474 int              paste_free_top(struct paste_stack *);
1475 int              paste_free_index(struct paste_stack *, u_int);
1476 void             paste_add(struct paste_stack *, char *, size_t, u_int);
1477 int              paste_replace(struct paste_stack *, u_int, char *, size_t);
1478 char            *paste_print(struct paste_buffer *, size_t);
1479
1480 /* clock.c */
1481 extern const char clock_table[14][5][5];
1482 void             clock_draw(struct screen_write_ctx *, int, int);
1483
1484 /* arguments.c */
1485 struct args     *args_create(int, ...);
1486 struct args     *args_parse(const char *, int, char **);
1487 void             args_free(struct args *);
1488 size_t           args_print(struct args *, char *, size_t);
1489 int              args_has(struct args *, u_char);
1490 void             args_set(struct args *, u_char, const char *);
1491 const char      *args_get(struct args *, u_char);
1492 long long        args_strtonum(
1493                     struct args *, u_char, long long, long long, char **);
1494
1495 /* cmd.c */
1496 int              cmd_pack_argv(int, char **, char *, size_t);
1497 int              cmd_unpack_argv(char *, size_t, int, char ***);
1498 char           **cmd_copy_argv(int, char *const *);
1499 void             cmd_free_argv(int, char **);
1500 struct cmd      *cmd_parse(int, char **, char **);
1501 int              cmd_exec(struct cmd *, struct cmd_ctx *);
1502 void             cmd_free(struct cmd *);
1503 size_t           cmd_print(struct cmd *, char *, size_t);
1504 struct session  *cmd_current_session(struct cmd_ctx *, int);
1505 struct client   *cmd_current_client(struct cmd_ctx *);
1506 struct client   *cmd_find_client(struct cmd_ctx *, const char *);
1507 struct session  *cmd_find_session(struct cmd_ctx *, const char *, int);
1508 struct winlink  *cmd_find_window(
1509                      struct cmd_ctx *, const char *, struct session **);
1510 int              cmd_find_index(
1511                      struct cmd_ctx *, const char *, struct session **);
1512 struct winlink  *cmd_find_pane(struct cmd_ctx *,
1513                      const char *, struct session **, struct window_pane **);
1514 char            *cmd_template_replace(char *, const char *, int);
1515 extern const struct cmd_entry *cmd_table[];
1516 extern const struct cmd_entry cmd_attach_session_entry;
1517 extern const struct cmd_entry cmd_bind_key_entry;
1518 extern const struct cmd_entry cmd_break_pane_entry;
1519 extern const struct cmd_entry cmd_capture_pane_entry;
1520 extern const struct cmd_entry cmd_choose_buffer_entry;
1521 extern const struct cmd_entry cmd_choose_client_entry;
1522 extern const struct cmd_entry cmd_choose_session_entry;
1523 extern const struct cmd_entry cmd_choose_window_entry;
1524 extern const struct cmd_entry cmd_clear_history_entry;
1525 extern const struct cmd_entry cmd_clock_mode_entry;
1526 extern const struct cmd_entry cmd_command_prompt_entry;
1527 extern const struct cmd_entry cmd_confirm_before_entry;
1528 extern const struct cmd_entry cmd_copy_mode_entry;
1529 extern const struct cmd_entry cmd_delete_buffer_entry;
1530 extern const struct cmd_entry cmd_detach_client_entry;
1531 extern const struct cmd_entry cmd_display_message_entry;
1532 extern const struct cmd_entry cmd_display_panes_entry;
1533 extern const struct cmd_entry cmd_down_pane_entry;
1534 extern const struct cmd_entry cmd_find_window_entry;
1535 extern const struct cmd_entry cmd_has_session_entry;
1536 extern const struct cmd_entry cmd_if_shell_entry;
1537 extern const struct cmd_entry cmd_join_pane_entry;
1538 extern const struct cmd_entry cmd_kill_pane_entry;
1539 extern const struct cmd_entry cmd_kill_server_entry;
1540 extern const struct cmd_entry cmd_kill_session_entry;
1541 extern const struct cmd_entry cmd_kill_window_entry;
1542 extern const struct cmd_entry cmd_last_pane_entry;
1543 extern const struct cmd_entry cmd_last_window_entry;
1544 extern const struct cmd_entry cmd_link_window_entry;
1545 extern const struct cmd_entry cmd_list_buffers_entry;
1546 extern const struct cmd_entry cmd_list_clients_entry;
1547 extern const struct cmd_entry cmd_list_commands_entry;
1548 extern const struct cmd_entry cmd_list_keys_entry;
1549 extern const struct cmd_entry cmd_list_panes_entry;
1550 extern const struct cmd_entry cmd_list_sessions_entry;
1551 extern const struct cmd_entry cmd_list_windows_entry;
1552 extern const struct cmd_entry cmd_load_buffer_entry;
1553 extern const struct cmd_entry cmd_lock_client_entry;
1554 extern const struct cmd_entry cmd_lock_server_entry;
1555 extern const struct cmd_entry cmd_lock_session_entry;
1556 extern const struct cmd_entry cmd_move_window_entry;
1557 extern const struct cmd_entry cmd_new_session_entry;
1558 extern const struct cmd_entry cmd_new_window_entry;
1559 extern const struct cmd_entry cmd_next_layout_entry;
1560 extern const struct cmd_entry cmd_next_window_entry;
1561 extern const struct cmd_entry cmd_paste_buffer_entry;
1562 extern const struct cmd_entry cmd_pipe_pane_entry;
1563 extern const struct cmd_entry cmd_previous_layout_entry;
1564 extern const struct cmd_entry cmd_previous_window_entry;
1565 extern const struct cmd_entry cmd_refresh_client_entry;
1566 extern const struct cmd_entry cmd_rename_session_entry;
1567 extern const struct cmd_entry cmd_rename_window_entry;
1568 extern const struct cmd_entry cmd_resize_pane_entry;
1569 extern const struct cmd_entry cmd_respawn_window_entry;
1570 extern const struct cmd_entry cmd_rotate_window_entry;
1571 extern const struct cmd_entry cmd_run_shell_entry;
1572 extern const struct cmd_entry cmd_save_buffer_entry;
1573 extern const struct cmd_entry cmd_select_layout_entry;
1574 extern const struct cmd_entry cmd_select_pane_entry;
1575 extern const struct cmd_entry cmd_select_window_entry;
1576 extern const struct cmd_entry cmd_send_keys_entry;
1577 extern const struct cmd_entry cmd_send_prefix_entry;
1578 extern const struct cmd_entry cmd_server_info_entry;
1579 extern const struct cmd_entry cmd_set_buffer_entry;
1580 extern const struct cmd_entry cmd_set_environment_entry;
1581 extern const struct cmd_entry cmd_set_option_entry;
1582 extern const struct cmd_entry cmd_set_window_option_entry;
1583 extern const struct cmd_entry cmd_show_buffer_entry;
1584 extern const struct cmd_entry cmd_show_environment_entry;
1585 extern const struct cmd_entry cmd_show_messages_entry;
1586 extern const struct cmd_entry cmd_show_options_entry;
1587 extern const struct cmd_entry cmd_show_window_options_entry;
1588 extern const struct cmd_entry cmd_source_file_entry;
1589 extern const struct cmd_entry cmd_split_window_entry;
1590 extern const struct cmd_entry cmd_start_server_entry;
1591 extern const struct cmd_entry cmd_suspend_client_entry;
1592 extern const struct cmd_entry cmd_swap_pane_entry;
1593 extern const struct cmd_entry cmd_swap_window_entry;
1594 extern const struct cmd_entry cmd_switch_client_entry;
1595 extern const struct cmd_entry cmd_unbind_key_entry;
1596 extern const struct cmd_entry cmd_unlink_window_entry;
1597 extern const struct cmd_entry cmd_up_pane_entry;
1598
1599 /* cmd-list.c */
1600 struct cmd_list *cmd_list_parse(int, char **, char **);
1601 int              cmd_list_exec(struct cmd_list *, struct cmd_ctx *);
1602 void             cmd_list_free(struct cmd_list *);
1603 size_t           cmd_list_print(struct cmd_list *, char *, size_t);
1604
1605 /* cmd-string.c */
1606 int     cmd_string_parse(const char *, struct cmd_list **, char **);
1607
1608 /* client.c */
1609 int     client_main(int, char **, int);
1610
1611 /* key-bindings.c */
1612 extern struct key_bindings key_bindings;
1613 int      key_bindings_cmp(struct key_binding *, struct key_binding *);
1614 SPLAY_PROTOTYPE(key_bindings, key_binding, entry, key_bindings_cmp);
1615 struct key_binding *key_bindings_lookup(int);
1616 void     key_bindings_add(int, int, struct cmd_list *);
1617 void     key_bindings_remove(int);
1618 void     key_bindings_clean(void);
1619 void     key_bindings_init(void);
1620 void     key_bindings_dispatch(struct key_binding *, struct client *);
1621 void printflike2 key_bindings_error(struct cmd_ctx *, const char *, ...);
1622 void printflike2 key_bindings_print(struct cmd_ctx *, const char *, ...);
1623 void printflike2 key_bindings_info(struct cmd_ctx *, const char *, ...);
1624
1625 /* key-string.c */
1626 int      key_string_lookup_string(const char *);
1627 const char *key_string_lookup_key(int);
1628
1629 /* server.c */
1630 extern struct clients clients;
1631 extern struct clients dead_clients;
1632 extern struct paste_stack global_buffers;
1633 int      server_start(void);
1634 void     server_update_socket(void);
1635
1636 /* server-client.c */
1637 void     server_client_create(int);
1638 void     server_client_lost(struct client *);
1639 void     server_client_callback(int, short, void *);
1640 void     server_client_status_timer(void);
1641 void     server_client_loop(void);
1642
1643 /* server-window.c */
1644 void     server_window_loop(void);
1645
1646 /* server-fn.c */
1647 void     server_fill_environ(struct session *, struct environ *);
1648 void     server_write_client(
1649              struct client *, enum msgtype, const void *, size_t);
1650 void     server_write_session(
1651              struct session *, enum msgtype, const void *, size_t);
1652 void     server_redraw_client(struct client *);
1653 void     server_status_client(struct client *);
1654 void     server_redraw_session(struct session *);
1655 void     server_redraw_session_group(struct session *);
1656 void     server_status_session(struct session *);
1657 void     server_status_session_group(struct session *);
1658 void     server_redraw_window(struct window *);
1659 void     server_redraw_window_borders(struct window *);
1660 void     server_status_window(struct window *);
1661 void     server_lock(void);
1662 void     server_lock_session(struct session *);
1663 void     server_lock_client(struct client *);
1664 int      server_unlock(const char *);
1665 void     server_kill_window(struct window *);
1666 int      server_link_window(struct session *,
1667              struct winlink *, struct session *, int, int, int, char **);
1668 void     server_unlink_window(struct session *, struct winlink *);
1669 void     server_destroy_pane(struct window_pane *);
1670 void     server_destroy_session_group(struct session *);
1671 void     server_destroy_session(struct session *);
1672 void     server_check_unattached (void);
1673 void     server_set_identify(struct client *);
1674 void     server_clear_identify(struct client *);
1675 void     server_update_event(struct client *);
1676
1677 /* status.c */
1678 int      status_out_cmp(struct status_out *, struct status_out *);
1679 RB_PROTOTYPE(status_out_tree, status_out, entry, status_out_cmp);
1680 void     status_free_jobs(struct status_out_tree *);
1681 void     status_update_jobs(struct client *);
1682 void     status_set_window_at(struct client *, u_int);
1683 int      status_redraw(struct client *);
1684 char    *status_replace(struct client *, struct session *,
1685              struct winlink *, struct window_pane *, const char *, time_t, int);
1686 void printflike2 status_message_set(struct client *, const char *, ...);
1687 void     status_message_clear(struct client *);
1688 int      status_message_redraw(struct client *);
1689 void     status_prompt_set(struct client *, const char *,
1690              int (*)(void *, const char *), void (*)(void *), void *, int);
1691 void     status_prompt_clear(struct client *);
1692 int      status_prompt_redraw(struct client *);
1693 void     status_prompt_key(struct client *, int);
1694 void     status_prompt_update(struct client *, const char *);
1695
1696 /* resize.c */
1697 void     recalculate_sizes(void);
1698
1699 /* input.c */
1700 void     input_init(struct window_pane *);
1701 void     input_free(struct window_pane *);
1702 void     input_parse(struct window_pane *);
1703
1704 /* input-key.c */
1705 void     input_key(struct window_pane *, int);
1706 void     input_mouse(struct window_pane *, struct mouse_event *);
1707
1708 /* xterm-keys.c */
1709 char    *xterm_keys_lookup(int);
1710 int      xterm_keys_find(const char *, size_t, size_t *, int *);
1711
1712 /* colour.c */
1713 void     colour_set_fg(struct grid_cell *, int);
1714 void     colour_set_bg(struct grid_cell *, int);
1715 const char *colour_tostring(int);
1716 int      colour_fromstring(const char *);
1717 u_char   colour_256to16(u_char);
1718 u_char   colour_256to88(u_char);
1719
1720 /* attributes.c */
1721 const char *attributes_tostring(u_char);
1722 int      attributes_fromstring(const char *);
1723
1724 /* grid.c */
1725 extern const struct grid_cell grid_default_cell;
1726 struct grid *grid_create(u_int, u_int, u_int);
1727 void     grid_destroy(struct grid *);
1728 int      grid_compare(struct grid *, struct grid *);
1729 void     grid_collect_history(struct grid *);
1730 void     grid_scroll_history(struct grid *);
1731 void     grid_scroll_history_region(struct grid *, u_int, u_int);
1732 void     grid_expand_line(struct grid *, u_int, u_int);
1733 void     grid_expand_line_utf8(struct grid *, u_int, u_int);
1734 const struct grid_cell *grid_peek_cell(struct grid *, u_int, u_int);
1735 struct grid_cell *grid_get_cell(struct grid *, u_int, u_int);
1736 void     grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
1737 const struct grid_utf8 *grid_peek_utf8(struct grid *, u_int, u_int);
1738 struct grid_utf8 *grid_get_utf8(struct grid *, u_int, u_int);
1739 void     grid_set_utf8(struct grid *, u_int, u_int, const struct grid_utf8 *);
1740 void     grid_clear(struct grid *, u_int, u_int, u_int, u_int);
1741 void     grid_clear_lines(struct grid *, u_int, u_int);
1742 void     grid_move_lines(struct grid *, u_int, u_int, u_int);
1743 void     grid_move_cells(struct grid *, u_int, u_int, u_int, u_int);
1744 char    *grid_string_cells(struct grid *, u_int, u_int, u_int);
1745 void     grid_duplicate_lines(
1746              struct grid *, u_int, struct grid *, u_int, u_int);
1747
1748 /* grid-utf8.c */
1749 size_t   grid_utf8_size(const struct grid_utf8 *);
1750 size_t   grid_utf8_copy(const struct grid_utf8 *, char *, size_t);
1751 void     grid_utf8_set(struct grid_utf8 *, const struct utf8_data *);
1752 int      grid_utf8_append(struct grid_utf8 *, const struct utf8_data *);
1753 int      grid_utf8_compare(const struct grid_utf8 *, const struct grid_utf8 *);
1754
1755 /* grid-view.c */
1756 const struct grid_cell *grid_view_peek_cell(struct grid *, u_int, u_int);
1757 struct grid_cell *grid_view_get_cell(struct grid *, u_int, u_int);
1758 void     grid_view_set_cell(
1759              struct grid *, u_int, u_int, const struct grid_cell *);
1760 const struct grid_utf8 *grid_view_peek_utf8(struct grid *, u_int, u_int);
1761 struct grid_utf8 *grid_view_get_utf8(struct grid *, u_int, u_int);
1762 void     grid_view_set_utf8(
1763              struct grid *, u_int, u_int, const struct grid_utf8 *);
1764 void     grid_view_clear_history(struct grid *);
1765 void     grid_view_clear(struct grid *, u_int, u_int, u_int, u_int);
1766 void     grid_view_scroll_region_up(struct grid *, u_int, u_int);
1767 void     grid_view_scroll_region_down(struct grid *, u_int, u_int);
1768 void     grid_view_insert_lines(struct grid *, u_int, u_int);
1769 void     grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int);
1770 void     grid_view_delete_lines(struct grid *, u_int, u_int);
1771 void     grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int);
1772 void     grid_view_insert_cells(struct grid *, u_int, u_int, u_int);
1773 void     grid_view_delete_cells(struct grid *, u_int, u_int, u_int);
1774 char    *grid_view_string_cells(struct grid *, u_int, u_int, u_int);
1775
1776 /* screen-write.c */
1777 void     screen_write_start(
1778              struct screen_write_ctx *, struct window_pane *, struct screen *);
1779 void     screen_write_stop(struct screen_write_ctx *);
1780 size_t printflike2 screen_write_cstrlen(int, const char *, ...);
1781 void printflike5 screen_write_cnputs(struct screen_write_ctx *,
1782              ssize_t, struct grid_cell *, int, const char *, ...);
1783 size_t printflike2 screen_write_strlen(int, const char *, ...);
1784 void printflike3 screen_write_puts(struct screen_write_ctx *,
1785              struct grid_cell *, const char *, ...);
1786 void printflike5 screen_write_nputs(struct screen_write_ctx *,
1787              ssize_t, struct grid_cell *, int, const char *, ...);
1788 void     screen_write_vnputs(struct screen_write_ctx *,
1789              ssize_t, struct grid_cell *, int, const char *, va_list);
1790 void     screen_write_parsestyle(
1791              struct grid_cell *, struct grid_cell *, const char *);
1792 void     screen_write_putc(
1793              struct screen_write_ctx *, struct grid_cell *, u_char);
1794 void     screen_write_copy(struct screen_write_ctx *,
1795              struct screen *, u_int, u_int, u_int, u_int);
1796 void     screen_write_backspace(struct screen_write_ctx *);
1797 void     screen_write_cursorup(struct screen_write_ctx *, u_int);
1798 void     screen_write_cursordown(struct screen_write_ctx *, u_int);
1799 void     screen_write_cursorright(struct screen_write_ctx *, u_int);
1800 void     screen_write_cursorleft(struct screen_write_ctx *, u_int);
1801 void     screen_write_alignmenttest(struct screen_write_ctx *);
1802 void     screen_write_insertcharacter(struct screen_write_ctx *, u_int);
1803 void     screen_write_deletecharacter(struct screen_write_ctx *, u_int);
1804 void     screen_write_insertline(struct screen_write_ctx *, u_int);
1805 void     screen_write_deleteline(struct screen_write_ctx *, u_int);
1806 void     screen_write_clearline(struct screen_write_ctx *);
1807 void     screen_write_clearendofline(struct screen_write_ctx *);
1808 void     screen_write_clearstartofline(struct screen_write_ctx *);
1809 void     screen_write_cursormove(struct screen_write_ctx *, u_int, u_int);
1810 void     screen_write_cursormode(struct screen_write_ctx *, int);
1811 void     screen_write_reverseindex(struct screen_write_ctx *);
1812 void     screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
1813 void     screen_write_insertmode(struct screen_write_ctx *, int);
1814 void     screen_write_utf8mousemode(struct screen_write_ctx *, int);
1815 void     screen_write_mousemode_on(struct screen_write_ctx *, int);
1816 void     screen_write_mousemode_off(struct screen_write_ctx *);
1817 void     screen_write_linefeed(struct screen_write_ctx *, int);
1818 void     screen_write_linefeedscreen(struct screen_write_ctx *, int);
1819 void     screen_write_carriagereturn(struct screen_write_ctx *);
1820 void     screen_write_kcursormode(struct screen_write_ctx *, int);
1821 void     screen_write_kkeypadmode(struct screen_write_ctx *, int);
1822 void     screen_write_clearendofscreen(struct screen_write_ctx *);
1823 void     screen_write_clearstartofscreen(struct screen_write_ctx *);
1824 void     screen_write_clearscreen(struct screen_write_ctx *);
1825 void     screen_write_cell(struct screen_write_ctx *,
1826              const struct grid_cell *, const struct utf8_data *);
1827 void     screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
1828
1829 /* screen-redraw.c */
1830 void     screen_redraw_screen(struct client *, int, int);
1831 void     screen_redraw_pane(struct client *, struct window_pane *);
1832
1833 /* screen.c */
1834 void     screen_init(struct screen *, u_int, u_int, u_int);
1835 void     screen_reinit(struct screen *);
1836 void     screen_free(struct screen *);
1837 void     screen_reset_tabs(struct screen *);
1838 void     screen_set_title(struct screen *, const char *);
1839 void     screen_resize(struct screen *, u_int, u_int);
1840 void     screen_set_selection(struct screen *,
1841              u_int, u_int, u_int, u_int, u_int, struct grid_cell *);
1842 void     screen_clear_selection(struct screen *);
1843 int      screen_check_selection(struct screen *, u_int, u_int);
1844
1845 /* window.c */
1846 extern struct windows windows;
1847 extern struct window_pane_tree all_window_panes;
1848 int              winlink_cmp(struct winlink *, struct winlink *);
1849 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
1850 int              window_pane_cmp(struct window_pane *, struct window_pane *);
1851 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
1852 struct winlink  *winlink_find_by_index(struct winlinks *, int);
1853 struct winlink  *winlink_find_by_window(struct winlinks *, struct window *);
1854 int              winlink_next_index(struct winlinks *, int);
1855 u_int            winlink_count(struct winlinks *);
1856 struct winlink  *winlink_add(struct winlinks *, int);
1857 void             winlink_set_window(struct winlink *, struct window *);
1858 void             winlink_remove(struct winlinks *, struct winlink *);
1859 struct winlink  *winlink_next(struct winlink *);
1860 struct winlink  *winlink_previous(struct winlink *);
1861 struct winlink  *winlink_next_by_number(struct winlink *, struct session *,
1862                      int);
1863 struct winlink  *winlink_previous_by_number(struct winlink *, struct session *,
1864                      int);
1865 void             winlink_stack_push(struct winlink_stack *, struct winlink *);
1866 void             winlink_stack_remove(struct winlink_stack *, struct winlink *);
1867 int              window_index(struct window *, u_int *);
1868 struct window   *window_create1(u_int, u_int);
1869 struct window   *window_create(const char *, const char *, const char *,
1870                      const char *, struct environ *, struct termios *,
1871                      u_int, u_int, u_int, char **);
1872 void             window_destroy(struct window *);
1873 void             window_set_active_at(struct window *, u_int, u_int);
1874 void             window_set_active_pane(struct window *, struct window_pane *);
1875 struct window_pane *window_add_pane(struct window *, u_int);
1876 void             window_resize(struct window *, u_int, u_int);
1877 void             window_remove_pane(struct window *, struct window_pane *);
1878 struct window_pane *window_pane_at_index(struct window *, u_int);
1879 struct window_pane *window_pane_next_by_number(struct window *,
1880                         struct window_pane *, u_int);
1881 struct window_pane *window_pane_previous_by_number(struct window *,
1882                         struct window_pane *, u_int);
1883 u_int            window_pane_index(struct window *, struct window_pane *);
1884 u_int            window_count_panes(struct window *);
1885 void             window_destroy_panes(struct window *);
1886 struct window_pane *window_pane_find_by_id(u_int);
1887 struct window_pane *window_pane_create(struct window *, u_int, u_int, u_int);
1888 void             window_pane_destroy(struct window_pane *);
1889 int              window_pane_spawn(struct window_pane *, const char *,
1890                      const char *, const char *, struct environ *,
1891                      struct termios *, char **);
1892 void             window_pane_resize(struct window_pane *, u_int, u_int);
1893 void             window_pane_alternate_on(
1894                      struct window_pane *, struct grid_cell *);
1895 void             window_pane_alternate_off(
1896                      struct window_pane *, struct grid_cell *);
1897 int              window_pane_set_mode(
1898                      struct window_pane *, const struct window_mode *);
1899 void             window_pane_reset_mode(struct window_pane *);
1900 void             window_pane_key(struct window_pane *, struct session *, int);
1901 void             window_pane_mouse(struct window_pane *,
1902                      struct session *, struct mouse_event *);
1903 int              window_pane_visible(struct window_pane *);
1904 char            *window_pane_search(
1905                      struct window_pane *, const char *, u_int *);
1906 char            *window_printable_flags(struct session *, struct winlink *);
1907
1908 struct window_pane *window_pane_find_up(struct window_pane *);
1909 struct window_pane *window_pane_find_down(struct window_pane *);
1910 struct window_pane *window_pane_find_left(struct window_pane *);
1911 struct window_pane *window_pane_find_right(struct window_pane *);
1912
1913 /* layout.c */
1914 u_int            layout_count_cells(struct layout_cell *);
1915 struct layout_cell *layout_create_cell(struct layout_cell *);
1916 void             layout_free_cell(struct layout_cell *);
1917 void             layout_print_cell(struct layout_cell *, const char *, u_int);
1918 void             layout_destroy_cell(struct layout_cell *, struct layout_cell **);
1919 void             layout_set_size(
1920                      struct layout_cell *, u_int, u_int, u_int, u_int);
1921 void             layout_make_leaf(
1922                      struct layout_cell *, struct window_pane *);
1923 void             layout_make_node(struct layout_cell *, enum layout_type);
1924 void             layout_fix_offsets(struct layout_cell *);
1925 void             layout_fix_panes(struct window *, u_int, u_int);
1926 u_int            layout_resize_check(struct layout_cell *, enum layout_type);
1927 void             layout_resize_adjust(
1928                      struct layout_cell *, enum layout_type, int);
1929 void             layout_init(struct window *);
1930 void             layout_free(struct window *);
1931 void             layout_resize(struct window *, u_int, u_int);
1932 void             layout_resize_pane(
1933                      struct window_pane *, enum layout_type, int);
1934 void             layout_resize_pane_mouse(
1935                      struct client *c, struct mouse_event *mouse);
1936 void             layout_assign_pane(struct layout_cell *, struct window_pane *);
1937 struct layout_cell *layout_split_pane(
1938                      struct window_pane *, enum layout_type, int);
1939 void             layout_close_pane(struct window_pane *);
1940
1941 /* layout-custom.c */
1942 char            *layout_dump(struct window *);
1943 int              layout_parse(struct window *, const char *);
1944
1945 /* layout-set.c */
1946 const char      *layout_set_name(u_int);
1947 int              layout_set_lookup(const char *);
1948 u_int            layout_set_select(struct window *, u_int);
1949 u_int            layout_set_next(struct window *);
1950 u_int            layout_set_previous(struct window *);
1951 void             layout_set_active_changed(struct window *);
1952
1953 /* layout-string.c */
1954 struct layout_cell *layout_find_string(struct window *, const char *);
1955 struct layout_cell *layout_find_bottomright(struct layout_cell *);
1956
1957 /* window-clock.c */
1958 extern const struct window_mode window_clock_mode;
1959
1960 /* window-copy.c */
1961 extern const struct window_mode window_copy_mode;
1962 void             window_copy_init_from_pane(struct window_pane *);
1963 void             window_copy_init_for_output(struct window_pane *);
1964 void             window_copy_add(struct window_pane *, const char *, ...);
1965 void             window_copy_vadd(struct window_pane *, const char *, va_list);
1966 void             window_copy_pageup(struct window_pane *);
1967
1968 /* window-choose.c */
1969 extern const struct window_mode window_choose_mode;
1970 void             window_choose_vadd(
1971                      struct window_pane *, int, const char *, va_list);
1972 void printflike3 window_choose_add(
1973                      struct window_pane *, int, const char *, ...);
1974 void             window_choose_ready(struct window_pane *,
1975                      u_int, void (*)(void *, int), void (*)(void *), void *);
1976
1977 /* names.c */
1978 void             queue_window_name(struct window *);
1979 char            *default_window_name(struct window *);
1980
1981 /* signal.c */
1982 void set_signals(void(*)(int, short, void *));
1983 void clear_signals(int);
1984
1985 /* session.c */
1986 extern struct sessions sessions;
1987 extern struct sessions dead_sessions;
1988 extern struct session_groups session_groups;
1989 int     session_cmp(struct session *, struct session *);
1990 RB_PROTOTYPE(sessions, session, entry, session_cmp);
1991 int              session_alive(struct session *);
1992 struct session  *session_find(const char *);
1993 struct session  *session_find_by_index(u_int);
1994 struct session  *session_create(const char *, const char *, const char *,
1995                      struct environ *, struct termios *, int, u_int, u_int,
1996                      char **);
1997 void             session_destroy(struct session *);
1998 int              session_check_name(const char *);
1999 void             session_update_activity(struct session *);
2000 struct session  *session_next_session(struct session *);
2001 struct session  *session_previous_session(struct session *);
2002 struct winlink  *session_new(struct session *,
2003                      const char *, const char *, const char *, int, char **);
2004 struct winlink  *session_attach(
2005                      struct session *, struct window *, int, char **);
2006 int              session_detach(struct session *, struct winlink *);
2007 struct winlink*  session_has(struct session *, struct window *);
2008 int              session_next(struct session *, int);
2009 int              session_previous(struct session *, int);
2010 int              session_select(struct session *, int);
2011 int              session_last(struct session *);
2012 struct session_group *session_group_find(struct session *);
2013 u_int            session_group_index(struct session_group *);
2014 void             session_group_add(struct session *, struct session *);
2015 void             session_group_remove(struct session *);
2016 void             session_group_synchronize_to(struct session *);
2017 void             session_group_synchronize_from(struct session *);
2018 void             session_group_synchronize1(struct session *, struct session *);
2019
2020 /* utf8.c */
2021 void    utf8_build(void);
2022 int     utf8_open(struct utf8_data *, u_char);
2023 int     utf8_append(struct utf8_data *, u_char);
2024 u_int   utf8_combine(const struct utf8_data *);
2025 u_int   utf8_split2(u_int, u_char *);
2026
2027 /* procname.c */
2028 char   *get_proc_name(int, char *);
2029
2030 /* log.c */
2031 void             log_open_tty(int);
2032 void             log_open_file(int, const char *);
2033 void             log_close(void);
2034 void printflike1 log_warn(const char *, ...);
2035 void printflike1 log_warnx(const char *, ...);
2036 void printflike1 log_info(const char *, ...);
2037 void printflike1 log_debug(const char *, ...);
2038 void printflike1 log_debug2(const char *, ...);
2039 __dead void printflike1 log_fatal(const char *, ...);
2040 __dead void printflike1 log_fatalx(const char *, ...);
2041
2042 /* xmalloc.c */
2043 char            *xstrdup(const char *);
2044 void            *xcalloc(size_t, size_t);
2045 void            *xmalloc(size_t);
2046 void            *xrealloc(void *, size_t, size_t);
2047 void             xfree(void *);
2048 int printflike2  xasprintf(char **, const char *, ...);
2049 int              xvasprintf(char **, const char *, va_list);
2050 int printflike3  xsnprintf(char *, size_t, const char *, ...);
2051 int              xvsnprintf(char *, size_t, const char *, va_list);
2052
2053 #endif /* TMUX_H */