options-table.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2011 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 #include <sys/types.h>
  20
  21 #include <string.h>
  22 #include <paths.h>
  23
  24 #include "tmux.h"
  25
  26 /*
  27  * This file has a tables with all the server, session and window
  28  * options. These tables are the master copy of the options with their real
  29  * (user-visible) types, range limits and default values. At start these are
  30  * copied into the runtime global options trees (which only has number and
  31  * string types). These tables are then used to loop up the real type when
  32  * the user sets an option or its value needs to be shown.
  33  */
  34
  35 /* Choice option type lists. */
  36 const char *options_table_mode_keys_list[] = {
  37         "emacs", "vi", NULL
  38 };
  39 const char *options_table_mode_mouse_list[] = {
  40         "off", "on", "copy-mode", NULL
  41 };
  42 const char *options_table_clock_mode_style_list[] = {
  43         "12", "24", NULL
  44 };
  45 const char *options_table_status_keys_list[] = {
  46         "emacs", "vi", NULL
  47 };
  48 const char *options_table_status_justify_list[] = {
  49         "left", "centre", "right", NULL
  50 };
  51 const char *options_table_status_position_list[] = {
  52         "top", "bottom", NULL
  53 };
  54 const char *options_table_bell_action_list[] = {
  55         "none", "any", "current", NULL
  56 };
  57
  58 /* Server options. */
  59 const struct options_table_entry server_options_table[] = {
  60         { .name = "buffer-limit",
  61           .type = OPTIONS_TABLE_NUMBER,
  62           .minimum = 1,
  63           .maximum = INT_MAX,
  64           .default_num = 20
  65         },
  66
  67         { .name = "escape-time",
  68           .type = OPTIONS_TABLE_NUMBER,
  69           .minimum = 0,
  70           .maximum = INT_MAX,
  71           .default_num = 500
  72         },
  73
  74         { .name = "exit-unattached",
  75           .type = OPTIONS_TABLE_FLAG,
  76           .default_num = 0
  77         },
  78
  79         { .name = "quiet",
  80           .type = OPTIONS_TABLE_FLAG,
  81           .default_num = 0 /* overridden in main() */
  82         },
  83
  84         { .name = "set-clipboard",
  85           .type = OPTIONS_TABLE_FLAG,
  86           .default_num = 1
  87         },
  88
  89         { .name = NULL }
  90 };
  91
  92 /* Session options. */
  93 const struct options_table_entry session_options_table[] = {
  94         { .name = "assume-paste-time",
  95           .type = OPTIONS_TABLE_NUMBER,
  96           .minimum = 0,
  97           .maximum = INT_MAX,
  98           .default_num = 1,
  99         },
 100
 101         { .name = "base-index",
 102           .type = OPTIONS_TABLE_NUMBER,
 103           .minimum = 0,
 104           .maximum = INT_MAX,
 105           .default_num = 0
 106         },
 107
 108         { .name = "bell-action",
 109           .type = OPTIONS_TABLE_CHOICE,
 110           .choices = options_table_bell_action_list,
 111           .default_num = BELL_ANY
 112         },
 113
 114         { .name = "bell-on-alert",
 115           .type = OPTIONS_TABLE_FLAG,
 116           .default_num = 0
 117         },
 118
 119         { .name = "default-command",
 120           .type = OPTIONS_TABLE_STRING,
 121           .default_str = ""
 122         },
 123
 124         { .name = "default-path",
 125           .type = OPTIONS_TABLE_STRING,
 126           .default_str = ""
 127         },
 128
 129         { .name = "default-shell",
 130           .type = OPTIONS_TABLE_STRING,
 131           .default_str = _PATH_BSHELL
 132         },
 133
 134         { .name = "default-terminal",
 135           .type = OPTIONS_TABLE_STRING,
 136           .default_str = "screen"
 137         },
 138
 139         { .name = "destroy-unattached",
 140           .type = OPTIONS_TABLE_FLAG,
 141           .default_num = 0
 142         },
 143
 144         { .name = "detach-on-destroy",
 145           .type = OPTIONS_TABLE_FLAG,
 146           .default_num = 1
 147         },
 148
 149         { .name = "display-panes-active-colour",
 150           .type = OPTIONS_TABLE_COLOUR,
 151           .default_num = 1
 152         },
 153
 154         { .name = "display-panes-colour",
 155           .type = OPTIONS_TABLE_COLOUR,
 156           .default_num = 4
 157         },
 158
 159         { .name = "display-panes-time",
 160           .type = OPTIONS_TABLE_NUMBER,
 161           .minimum = 1,
 162           .maximum = INT_MAX,
 163           .default_num = 1000
 164         },
 165
 166         { .name = "display-time",
 167           .type = OPTIONS_TABLE_NUMBER,
 168           .minimum = 1,
 169           .maximum = INT_MAX,
 170           .default_num = 750
 171         },
 172
 173         { .name = "history-limit",
 174           .type = OPTIONS_TABLE_NUMBER,
 175           .minimum = 0,
 176           .maximum = INT_MAX,
 177           .default_num = 2000
 178         },
 179
 180         { .name = "lock-after-time",
 181           .type = OPTIONS_TABLE_NUMBER,
 182           .minimum = 0,
 183           .maximum = INT_MAX,
 184           .default_num = 0
 185         },
 186
 187         { .name = "lock-command",
 188           .type = OPTIONS_TABLE_STRING,
 189           .default_str = "lock -np"
 190         },
 191
 192         { .name = "lock-server",
 193           .type = OPTIONS_TABLE_FLAG,
 194           .default_num = 1
 195         },
 196
 197         { .name = "message-attr",
 198           .type = OPTIONS_TABLE_ATTRIBUTES,
 199           .default_num = 0
 200         },
 201
 202         { .name = "message-bg",
 203           .type = OPTIONS_TABLE_COLOUR,
 204           .default_num = 3
 205         },
 206
 207         { .name = "message-command-attr",
 208           .type = OPTIONS_TABLE_ATTRIBUTES,
 209           .default_num = 0
 210         },
 211
 212         { .name = "message-command-bg",
 213           .type = OPTIONS_TABLE_COLOUR,
 214           .default_num = 0
 215         },
 216
 217         { .name = "message-command-fg",
 218           .type = OPTIONS_TABLE_COLOUR,
 219           .default_num = 3
 220         },
 221
 222         { .name = "message-fg",
 223           .type = OPTIONS_TABLE_COLOUR,
 224           .default_num = 0
 225         },
 226
 227         { .name = "message-limit",
 228           .type = OPTIONS_TABLE_NUMBER,
 229           .minimum = 0,
 230           .maximum = INT_MAX,
 231           .default_num = 20
 232         },
 233
 234         { .name = "mouse-resize-pane",
 235           .type = OPTIONS_TABLE_FLAG,
 236           .default_num = 0
 237         },
 238
 239         { .name = "mouse-select-pane",
 240           .type = OPTIONS_TABLE_FLAG,
 241           .default_num = 0
 242         },
 243
 244         { .name = "mouse-select-window",
 245           .type = OPTIONS_TABLE_FLAG,
 246           .default_num = 0
 247         },
 248
 249         { .name = "mouse-utf8",
 250           .type = OPTIONS_TABLE_FLAG,
 251           .default_num = 0
 252         },
 253
 254         { .name = "pane-active-border-bg",
 255           .type = OPTIONS_TABLE_COLOUR,
 256           .default_num = 8
 257         },
 258
 259         { .name = "pane-active-border-fg",
 260           .type = OPTIONS_TABLE_COLOUR,
 261           .default_num = 2
 262         },
 263
 264         { .name = "pane-border-bg",
 265           .type = OPTIONS_TABLE_COLOUR,
 266           .default_num = 8
 267         },
 268
 269         { .name = "pane-border-fg",
 270           .type = OPTIONS_TABLE_COLOUR,
 271           .default_num = 8
 272         },
 273
 274         { .name = "prefix",
 275           .type = OPTIONS_TABLE_KEY,
 276           .default_num = '\002',
 277         },
 278
 279         { .name = "prefix2",
 280           .type = OPTIONS_TABLE_KEY,
 281           .default_num = KEYC_NONE,
 282         },
 283
 284         { .name = "renumber-windows",
 285           .type = OPTIONS_TABLE_FLAG,
 286           .default_num = 0
 287         },
 288
 289         { .name = "repeat-time",
 290           .type = OPTIONS_TABLE_NUMBER,
 291           .minimum = 0,
 292           .maximum = SHRT_MAX,
 293           .default_num = 500
 294         },
 295
 296         { .name = "set-remain-on-exit",
 297           .type = OPTIONS_TABLE_FLAG,
 298           .default_num = 0
 299         },
 300
 301         { .name = "set-titles",
 302           .type = OPTIONS_TABLE_FLAG,
 303           .default_num = 0
 304         },
 305
 306         { .name = "set-titles-string",
 307           .type = OPTIONS_TABLE_STRING,
 308           .default_str = "#S:#I:#W - \"#T\""
 309         },
 310
 311         { .name = "status",
 312           .type = OPTIONS_TABLE_FLAG,
 313           .default_num = 1
 314         },
 315
 316         { .name = "status-attr",
 317           .type = OPTIONS_TABLE_ATTRIBUTES,
 318           .default_num = 0
 319         },
 320
 321         { .name = "status-bg",
 322           .type = OPTIONS_TABLE_COLOUR,
 323           .default_num = 2
 324         },
 325
 326         { .name = "status-fg",
 327           .type = OPTIONS_TABLE_COLOUR,
 328           .default_num = 0
 329         },
 330
 331         { .name = "status-interval",
 332           .type = OPTIONS_TABLE_NUMBER,
 333           .minimum = 0,
 334           .maximum = INT_MAX,
 335           .default_num = 15
 336         },
 337
 338         { .name = "status-justify",
 339           .type = OPTIONS_TABLE_CHOICE,
 340           .choices = options_table_status_justify_list,
 341           .default_num = 0
 342         },
 343
 344         { .name = "status-keys",
 345           .type = OPTIONS_TABLE_CHOICE,
 346           .choices = options_table_status_keys_list,
 347           .default_num = MODEKEY_EMACS
 348         },
 349
 350         { .name = "status-left",
 351           .type = OPTIONS_TABLE_STRING,
 352           .default_str = "[#S]"
 353         },
 354
 355         { .name = "status-left-attr",
 356           .type = OPTIONS_TABLE_ATTRIBUTES,
 357           .default_num = 0
 358         },
 359
 360         { .name = "status-left-bg",
 361           .type = OPTIONS_TABLE_COLOUR,
 362           .default_num = 8
 363         },
 364
 365         { .name = "status-left-fg",
 366           .type = OPTIONS_TABLE_COLOUR,
 367           .default_num = 8
 368         },
 369
 370         { .name = "status-left-length",
 371           .type = OPTIONS_TABLE_NUMBER,
 372           .minimum = 0,
 373           .maximum = SHRT_MAX,
 374           .default_num = 10
 375         },
 376
 377         { .name = "status-position",
 378           .type = OPTIONS_TABLE_CHOICE,
 379           .choices = options_table_status_position_list,
 380           .default_num = 1
 381         },
 382
 383         { .name = "status-right",
 384           .type = OPTIONS_TABLE_STRING,
 385           .default_str = "\"#22T\" %H:%M %d-%b-%y"
 386         },
 387
 388         { .name = "status-right-attr",
 389           .type = OPTIONS_TABLE_ATTRIBUTES,
 390           .default_num = 0
 391         },
 392
 393         { .name = "status-right-bg",
 394           .type = OPTIONS_TABLE_COLOUR,
 395           .default_num = 8
 396         },
 397
 398         { .name = "status-right-fg",
 399           .type = OPTIONS_TABLE_COLOUR,
 400           .default_num = 8
 401         },
 402
 403         { .name = "status-right-length",
 404           .type = OPTIONS_TABLE_NUMBER,
 405           .minimum = 0,
 406           .maximum = SHRT_MAX,
 407           .default_num = 40
 408         },
 409
 410         { .name = "status-utf8",
 411           .type = OPTIONS_TABLE_FLAG,
 412           .default_num = 0 /* overridden in main() */
 413         },
 414
 415         { .name = "terminal-overrides",
 416           .type = OPTIONS_TABLE_STRING,
 417           .default_str = "*256col*:colors=256"
 418                          ",xterm*:XT:Ms=\\E]52;%p1%s;%p2%s\\007"
 419                          ":Cc=\\E]12;%p1%s\\007:Cr=\\E]112\\007"
 420                          ":Cs=\\E[%p1%d q:Csr=\\E[2 q,screen*:XT"
 421         },
 422
 423         { .name = "update-environment",
 424           .type = OPTIONS_TABLE_STRING,
 425           .default_str = "DISPLAY SSH_ASKPASS SSH_AUTH_SOCK SSH_AGENT_PID "
 426                          "SSH_CONNECTION WINDOWID XAUTHORITY"
 427
 428         },
 429
 430         { .name = "visual-activity",
 431           .type = OPTIONS_TABLE_FLAG,
 432           .default_num = 0
 433         },
 434
 435         { .name = "visual-bell",
 436           .type = OPTIONS_TABLE_FLAG,
 437           .default_num = 0
 438         },
 439
 440         { .name = "visual-content",
 441           .type = OPTIONS_TABLE_FLAG,
 442           .default_num = 0
 443         },
 444
 445         { .name = "visual-silence",
 446           .type = OPTIONS_TABLE_FLAG,
 447           .default_num = 0
 448         },
 449
 450         { .name = "word-separators",
 451           .type = OPTIONS_TABLE_STRING,
 452           .default_str = " -_@"
 453         },
 454
 455         { .name = NULL }
 456 };
 457
 458 /* Window options. */
 459 const struct options_table_entry window_options_table[] = {
 460         { .name = "aggressive-resize",
 461           .type = OPTIONS_TABLE_FLAG,
 462           .default_num = 0
 463         },
 464
 465         { .name = "allow-rename",
 466           .type = OPTIONS_TABLE_FLAG,
 467           .default_num = 1
 468         },
 469
 470         { .name = "alternate-screen",
 471           .type = OPTIONS_TABLE_FLAG,
 472           .default_num = 1
 473         },
 474
 475         { .name = "automatic-rename",
 476           .type = OPTIONS_TABLE_FLAG,
 477           .default_num = 1
 478         },
 479
 480         { .name = "c0-change-trigger",
 481           .type = OPTIONS_TABLE_NUMBER,
 482           .default_num = 250,
 483           .minimum = 0,
 484           .maximum = USHRT_MAX
 485         },
 486
 487         { .name = "c0-change-interval",
 488           .type = OPTIONS_TABLE_NUMBER,
 489           .default_num = 100,
 490           .minimum = 1,
 491           .maximum = USHRT_MAX
 492         },
 493
 494         { .name = "clock-mode-colour",
 495           .type = OPTIONS_TABLE_COLOUR,
 496           .default_num = 4
 497         },
 498
 499         { .name = "clock-mode-style",
 500           .type = OPTIONS_TABLE_CHOICE,
 501           .choices = options_table_clock_mode_style_list,
 502           .default_num = 1
 503         },
 504
 505         { .name = "force-height",
 506           .type = OPTIONS_TABLE_NUMBER,
 507           .minimum = 0,
 508           .maximum = INT_MAX,
 509           .default_num = 0
 510         },
 511
 512         { .name = "force-width",
 513           .type = OPTIONS_TABLE_NUMBER,
 514           .minimum = 0,
 515           .maximum = INT_MAX,
 516           .default_num = 0
 517         },
 518
 519         { .name = "main-pane-height",
 520           .type = OPTIONS_TABLE_NUMBER,
 521           .minimum = 1,
 522           .maximum = INT_MAX,
 523           .default_num = 24
 524         },
 525
 526         { .name = "main-pane-width",
 527           .type = OPTIONS_TABLE_NUMBER,
 528           .minimum = 1,
 529           .maximum = INT_MAX,
 530           .default_num = 80
 531         },
 532
 533         { .name = "mode-attr",
 534           .type = OPTIONS_TABLE_ATTRIBUTES,
 535           .default_num = 0
 536         },
 537
 538         { .name = "mode-bg",
 539           .type = OPTIONS_TABLE_COLOUR,
 540           .default_num = 3
 541         },
 542
 543         { .name = "mode-fg",
 544           .type = OPTIONS_TABLE_COLOUR,
 545           .default_num = 0
 546         },
 547
 548         { .name = "mode-keys",
 549           .type = OPTIONS_TABLE_CHOICE,
 550           .choices = options_table_mode_keys_list,
 551           .default_num = MODEKEY_EMACS
 552         },
 553
 554         { .name = "mode-mouse",
 555           .type = OPTIONS_TABLE_CHOICE,
 556           .choices = options_table_mode_mouse_list,
 557           .default_num = 0
 558         },
 559
 560         { .name = "monitor-activity",
 561           .type = OPTIONS_TABLE_FLAG,
 562           .default_num = 0
 563         },
 564
 565         { .name = "monitor-content",
 566           .type = OPTIONS_TABLE_STRING,
 567           .default_str = ""
 568         },
 569
 570         { .name = "monitor-silence",
 571           .type = OPTIONS_TABLE_NUMBER,
 572           .minimum = 0,
 573           .maximum = INT_MAX,
 574           .default_num = 0
 575         },
 576
 577         { .name = "other-pane-height",
 578           .type = OPTIONS_TABLE_NUMBER,
 579           .minimum = 0,
 580           .maximum = INT_MAX,
 581           .default_num = 0
 582         },
 583
 584         { .name = "other-pane-width",
 585           .type = OPTIONS_TABLE_NUMBER,
 586           .minimum = 0,
 587           .maximum = INT_MAX,
 588           .default_num = 0
 589         },
 590
 591         { .name = "pane-base-index",
 592           .type = OPTIONS_TABLE_NUMBER,
 593           .minimum = 0,
 594           .maximum = USHRT_MAX,
 595           .default_num = 0
 596         },
 597
 598         { .name = "remain-on-exit",
 599           .type = OPTIONS_TABLE_FLAG,
 600           .default_num = 0
 601         },
 602
 603         { .name = "synchronize-panes",
 604           .type = OPTIONS_TABLE_FLAG,
 605           .default_num = 0
 606         },
 607
 608         { .name = "utf8",
 609           .type = OPTIONS_TABLE_FLAG,
 610           .default_num = 0 /* overridden in main() */
 611         },
 612
 613         { .name = "window-status-activity-attr",
 614           .type = OPTIONS_TABLE_ATTRIBUTES,
 615           .default_num = GRID_ATTR_REVERSE
 616         },
 617
 618         { .name = "window-status-activity-bg",
 619           .type = OPTIONS_TABLE_COLOUR,
 620           .default_num = 8
 621         },
 622
 623         { .name = "window-status-activity-fg",
 624           .type = OPTIONS_TABLE_COLOUR,
 625           .default_num = 8
 626         },
 627
 628         { .name = "window-status-bell-attr",
 629           .type = OPTIONS_TABLE_ATTRIBUTES,
 630           .default_num = GRID_ATTR_REVERSE
 631         },
 632
 633         { .name = "window-status-bell-bg",
 634           .type = OPTIONS_TABLE_COLOUR,
 635           .default_num = 8
 636         },
 637
 638         { .name = "window-status-bell-fg",
 639           .type = OPTIONS_TABLE_COLOUR,
 640           .default_num = 8
 641         },
 642
 643         { .name = "window-status-content-attr",
 644           .type = OPTIONS_TABLE_ATTRIBUTES,
 645           .default_num = GRID_ATTR_REVERSE
 646         },
 647
 648         { .name = "window-status-content-bg",
 649           .type = OPTIONS_TABLE_COLOUR,
 650           .default_num = 8
 651         },
 652
 653         { .name = "window-status-content-fg",
 654           .type = OPTIONS_TABLE_COLOUR,
 655           .default_num = 8
 656         },
 657
 658         { .name = "window-status-attr",
 659           .type = OPTIONS_TABLE_ATTRIBUTES,
 660           .default_num = 0
 661         },
 662
 663         { .name = "window-status-bg",
 664           .type = OPTIONS_TABLE_COLOUR,
 665           .default_num = 8
 666         },
 667
 668         { .name = "window-status-current-attr",
 669           .type = OPTIONS_TABLE_ATTRIBUTES,
 670           .default_num = 0
 671         },
 672
 673         { .name = "window-status-current-bg",
 674           .type = OPTIONS_TABLE_COLOUR,
 675           .default_num = 8
 676         },
 677
 678         { .name = "window-status-current-fg",
 679           .type = OPTIONS_TABLE_COLOUR,
 680           .default_num = 8
 681         },
 682
 683         { .name = "window-status-current-format",
 684           .type = OPTIONS_TABLE_STRING,
 685           .default_str = "#I:#W#F"
 686         },
 687
 688         { .name = "window-status-last-attr",
 689           .type = OPTIONS_TABLE_ATTRIBUTES,
 690           .default_num = 0
 691         },
 692
 693         { .name = "window-status-last-bg",
 694           .type = OPTIONS_TABLE_COLOUR,
 695           .default_num = 8
 696         },
 697
 698         { .name = "window-status-last-fg",
 699           .type = OPTIONS_TABLE_COLOUR,
 700           .default_num = 8
 701         },
 702
 703         { .name = "window-status-fg",
 704           .type = OPTIONS_TABLE_COLOUR,
 705           .default_num = 8
 706         },
 707
 708         { .name = "window-status-format",
 709           .type = OPTIONS_TABLE_STRING,
 710           .default_str = "#I:#W#F"
 711         },
 712
 713         { .name = "window-status-separator",
 714           .type = OPTIONS_TABLE_STRING,
 715           .default_str = " "
 716         },
 717
 718         { .name = "wrap-search",
 719           .type = OPTIONS_TABLE_FLAG,
 720           .default_num = 1
 721         },
 722
 723         { .name = "xterm-keys",
 724           .type = OPTIONS_TABLE_FLAG,
 725           .default_num = 0
 726         },
 727
 728         { .name = NULL }
 729 };
 730
 731 /* Populate an options tree from a table. */
 732 void
 733 options_table_populate_tree(
 734     const struct options_table_entry *table, struct options *oo)
 735 {
 736         const struct options_table_entry        *oe;
 737
 738         for (oe = table; oe->name != NULL; oe++) {
 739                 if (oe->default_str != NULL)
 740                         options_set_string(oo, oe->name, "%s", oe->default_str);
 741                 else
 742                         options_set_number(oo, oe->name, oe->default_num);
 743         }
 744 }
 745
 746 /* Print an option using its type from the table. */
 747 const char *
 748 options_table_print_entry(const struct options_table_entry *oe,
 749     struct options_entry *o, int no_quotes)
 750 {
 751         static char      out[BUFSIZ];
 752         const char      *s;
 753
 754         *out = '\0';
 755         switch (oe->type) {
 756         case OPTIONS_TABLE_STRING:
 757                 if (no_quotes)
 758                         xsnprintf(out, sizeof out, "%s", o->str);
 759                 else
 760                         xsnprintf(out, sizeof out, "\"%s\"", o->str);
 761                 break;
 762         case OPTIONS_TABLE_NUMBER:
 763                 xsnprintf(out, sizeof out, "%lld", o->num);
 764                 break;
 765         case OPTIONS_TABLE_KEY:
 766                 xsnprintf(out, sizeof out, "%s",
 767                     key_string_lookup_key(o->num));
 768                 break;
 769         case OPTIONS_TABLE_COLOUR:
 770                 s = colour_tostring(o->num);
 771                 xsnprintf(out, sizeof out, "%s", s);
 772                 break;
 773         case OPTIONS_TABLE_ATTRIBUTES:
 774                 s = attributes_tostring(o->num);
 775                 xsnprintf(out, sizeof out, "%s", s);
 776                 break;
 777         case OPTIONS_TABLE_FLAG:
 778                 if (o->num)
 779                         strlcpy(out, "on", sizeof out);
 780                 else
 781                         strlcpy(out, "off", sizeof out);
 782                 break;
 783         case OPTIONS_TABLE_CHOICE:
 784                 s = oe->choices[o->num];
 785                 xsnprintf(out, sizeof out, "%s", s);
 786                 break;
 787         }
 788         return (out);
 789 }
 790
 791 /* Find an option. */
 792 int
 793 options_table_find(
 794     const char *optstr, const struct options_table_entry **table,
 795     const struct options_table_entry **oe)
 796 {
 797         static const struct options_table_entry *tables[] = {
 798                 server_options_table,
 799                 window_options_table,
 800                 session_options_table
 801         };
 802         const struct options_table_entry        *oe_loop;
 803         u_int                                    i;
 804
 805         for (i = 0; i < nitems(tables); i++) {
 806                 for (oe_loop = tables[i]; oe_loop->name != NULL; oe_loop++) {
 807                         if (strncmp(oe_loop->name, optstr, strlen(optstr)) != 0)
 808                                 continue;
 809
 810                         /* If already found, ambiguous. */
 811                         if (*oe != NULL)
 812                                 return (-1);
 813                         *oe = oe_loop;
 814                         *table = tables[i];
 815
 816                         /* Bail now if an exact match. */
 817                         if (strcmp((*oe)->name, optstr) == 0)
 818                                 break;
 819                 }
 820         }
 821         return (0);
 822 }