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