1/* 2 * options.c - shell options 3 * 4 * This file is part of zsh, the Z shell. 5 * 6 * Copyright (c) 1992-1997 Paul Falstad 7 * All rights reserved. 8 * 9 * Permission is hereby granted, without written agreement and without 10 * license or royalty fees, to use, copy, modify, and distribute this 11 * software and to distribute modified versions of this software for any 12 * purpose, provided that the above copyright notice and the following 13 * two paragraphs appear in all copies of this software. 14 * 15 * In no event shall Paul Falstad or the Zsh Development Group be liable 16 * to any party for direct, indirect, special, incidental, or consequential 17 * damages arising out of the use of this software and its documentation, 18 * even if Paul Falstad and the Zsh Development Group have been advised of 19 * the possibility of such damage. 20 * 21 * Paul Falstad and the Zsh Development Group specifically disclaim any 22 * warranties, including, but not limited to, the implied warranties of 23 * merchantability and fitness for a particular purpose. The software 24 * provided hereunder is on an "as is" basis, and Paul Falstad and the 25 * Zsh Development Group have no obligation to provide maintenance, 26 * support, updates, enhancements, or modifications. 27 * 28 */ 29 30#include "zsh.mdh" 31#include "options.pro" 32 33/* current emulation (used to decide which set of option letters is used) */ 34 35/**/ 36mod_export int emulation; 37 38/* current sticky emulation: sticky = NULL means none */ 39 40/**/ 41mod_export Emulation_options sticky; 42 43/* the options; e.g. if opts[SHGLOB] != 0, SH_GLOB is turned on */ 44 45/**/ 46mod_export char opts[OPT_SIZE]; 47 48/* Option name hash table */ 49 50/**/ 51mod_export HashTable optiontab; 52 53/* The canonical option name table */ 54 55#define OPT_CSH EMULATE_CSH 56#define OPT_KSH EMULATE_KSH 57#define OPT_SH EMULATE_SH 58#define OPT_ZSH EMULATE_ZSH 59 60#define OPT_ALL (OPT_CSH|OPT_KSH|OPT_SH|OPT_ZSH) 61#define OPT_BOURNE (OPT_KSH|OPT_SH) 62#define OPT_BSHELL (OPT_KSH|OPT_SH|OPT_ZSH) 63#define OPT_NONBOURNE (OPT_ALL & ~OPT_BOURNE) 64#define OPT_NONZSH (OPT_ALL & ~OPT_ZSH) 65 66/* option is relevant to emulation */ 67#define OPT_EMULATE (EMULATE_UNUSED) 68/* option should never be set by emulate() */ 69#define OPT_SPECIAL (EMULATE_UNUSED<<1) 70/* option is an alias to an other option */ 71#define OPT_ALIAS (EMULATE_UNUSED<<2) 72 73#define defset(X, my_emulation) (!!((X)->node.flags & my_emulation)) 74 75/* 76 * Note that option names should usually be fewer than 20 characters long 77 * to avoid formatting problems. 78 */ 79static struct optname optns[] = { 80{{NULL, "aliases", OPT_EMULATE|OPT_ALL}, ALIASESOPT}, 81{{NULL, "allexport", OPT_EMULATE}, ALLEXPORT}, 82{{NULL, "alwayslastprompt", OPT_ALL}, ALWAYSLASTPROMPT}, 83{{NULL, "alwaystoend", 0}, ALWAYSTOEND}, 84{{NULL, "appendhistory", OPT_ALL}, APPENDHISTORY}, 85{{NULL, "autocd", OPT_EMULATE}, AUTOCD}, 86{{NULL, "autocontinue", 0}, AUTOCONTINUE}, 87{{NULL, "autolist", OPT_ALL}, AUTOLIST}, 88{{NULL, "automenu", OPT_ALL}, AUTOMENU}, 89{{NULL, "autonamedirs", 0}, AUTONAMEDIRS}, 90{{NULL, "autoparamkeys", OPT_ALL}, AUTOPARAMKEYS}, 91{{NULL, "autoparamslash", OPT_ALL}, AUTOPARAMSLASH}, 92{{NULL, "autopushd", 0}, AUTOPUSHD}, 93{{NULL, "autoremoveslash", OPT_ALL}, AUTOREMOVESLASH}, 94{{NULL, "autoresume", 0}, AUTORESUME}, 95{{NULL, "badpattern", OPT_EMULATE|OPT_NONBOURNE},BADPATTERN}, 96{{NULL, "banghist", OPT_NONBOURNE}, BANGHIST}, 97{{NULL, "bareglobqual", OPT_EMULATE|OPT_ZSH}, BAREGLOBQUAL}, 98{{NULL, "bashautolist", 0}, BASHAUTOLIST}, 99{{NULL, "bashrematch", 0}, BASHREMATCH}, 100{{NULL, "beep", OPT_ALL}, BEEP}, 101{{NULL, "bgnice", OPT_EMULATE|OPT_NONBOURNE},BGNICE}, 102{{NULL, "braceccl", OPT_EMULATE}, BRACECCL}, 103{{NULL, "bsdecho", OPT_EMULATE|OPT_SH}, BSDECHO}, 104{{NULL, "caseglob", OPT_ALL}, CASEGLOB}, 105{{NULL, "casematch", OPT_ALL}, CASEMATCH}, 106{{NULL, "cbases", 0}, CBASES}, 107{{NULL, "cprecedences", OPT_EMULATE|OPT_NONZSH}, CPRECEDENCES}, 108{{NULL, "cdablevars", OPT_EMULATE}, CDABLEVARS}, 109{{NULL, "chasedots", OPT_EMULATE}, CHASEDOTS}, 110{{NULL, "chaselinks", OPT_EMULATE}, CHASELINKS}, 111{{NULL, "checkjobs", OPT_EMULATE|OPT_ZSH}, CHECKJOBS}, 112{{NULL, "clobber", OPT_EMULATE|OPT_ALL}, CLOBBER}, 113{{NULL, "combiningchars", 0}, COMBININGCHARS}, 114{{NULL, "completealiases", 0}, COMPLETEALIASES}, 115{{NULL, "completeinword", 0}, COMPLETEINWORD}, 116{{NULL, "continueonerror", 0}, CONTINUEONERROR}, 117{{NULL, "correct", 0}, CORRECT}, 118{{NULL, "correctall", 0}, CORRECTALL}, 119{{NULL, "cshjunkiehistory", OPT_EMULATE|OPT_CSH}, CSHJUNKIEHISTORY}, 120{{NULL, "cshjunkieloops", OPT_EMULATE|OPT_CSH}, CSHJUNKIELOOPS}, 121{{NULL, "cshjunkiequotes", OPT_EMULATE|OPT_CSH}, CSHJUNKIEQUOTES}, 122{{NULL, "cshnullcmd", OPT_EMULATE|OPT_CSH}, CSHNULLCMD}, 123{{NULL, "cshnullglob", OPT_EMULATE|OPT_CSH}, CSHNULLGLOB}, 124{{NULL, "debugbeforecmd", OPT_ALL}, DEBUGBEFORECMD}, 125{{NULL, "emacs", 0}, EMACSMODE}, 126{{NULL, "equals", OPT_EMULATE|OPT_ZSH}, EQUALS}, 127{{NULL, "errexit", OPT_EMULATE}, ERREXIT}, 128{{NULL, "errreturn", OPT_EMULATE}, ERRRETURN}, 129{{NULL, "exec", OPT_ALL}, EXECOPT}, 130{{NULL, "extendedglob", OPT_EMULATE}, EXTENDEDGLOB}, 131{{NULL, "extendedhistory", OPT_CSH}, EXTENDEDHISTORY}, 132{{NULL, "evallineno", OPT_EMULATE|OPT_ZSH}, EVALLINENO}, 133{{NULL, "flowcontrol", OPT_ALL}, FLOWCONTROL}, 134{{NULL, "functionargzero", OPT_EMULATE|OPT_NONBOURNE},FUNCTIONARGZERO}, 135{{NULL, "glob", OPT_EMULATE|OPT_ALL}, GLOBOPT}, 136{{NULL, "globalexport", OPT_EMULATE|OPT_ZSH}, GLOBALEXPORT}, 137{{NULL, "globalrcs", OPT_ALL}, GLOBALRCS}, 138{{NULL, "globassign", OPT_EMULATE|OPT_CSH}, GLOBASSIGN}, 139{{NULL, "globcomplete", 0}, GLOBCOMPLETE}, 140{{NULL, "globdots", OPT_EMULATE}, GLOBDOTS}, 141{{NULL, "globsubst", OPT_EMULATE|OPT_NONZSH}, GLOBSUBST}, 142{{NULL, "hashcmds", OPT_ALL}, HASHCMDS}, 143{{NULL, "hashdirs", OPT_ALL}, HASHDIRS}, 144{{NULL, "hashexecutablesonly", 0}, HASHEXECUTABLESONLY}, 145{{NULL, "hashlistall", OPT_ALL}, HASHLISTALL}, 146{{NULL, "histallowclobber", 0}, HISTALLOWCLOBBER}, 147{{NULL, "histbeep", OPT_ALL}, HISTBEEP}, 148{{NULL, "histexpiredupsfirst",0}, HISTEXPIREDUPSFIRST}, 149{{NULL, "histfcntllock", 0}, HISTFCNTLLOCK}, 150{{NULL, "histfindnodups", 0}, HISTFINDNODUPS}, 151{{NULL, "histignorealldups", 0}, HISTIGNOREALLDUPS}, 152{{NULL, "histignoredups", 0}, HISTIGNOREDUPS}, 153{{NULL, "histignorespace", 0}, HISTIGNORESPACE}, 154{{NULL, "histlexwords", 0}, HISTLEXWORDS}, 155{{NULL, "histnofunctions", 0}, HISTNOFUNCTIONS}, 156{{NULL, "histnostore", 0}, HISTNOSTORE}, 157{{NULL, "histsubstpattern", OPT_EMULATE}, HISTSUBSTPATTERN}, 158{{NULL, "histreduceblanks", 0}, HISTREDUCEBLANKS}, 159{{NULL, "histsavebycopy", OPT_ALL}, HISTSAVEBYCOPY}, 160{{NULL, "histsavenodups", 0}, HISTSAVENODUPS}, 161{{NULL, "histverify", 0}, HISTVERIFY}, 162{{NULL, "hup", OPT_EMULATE|OPT_ZSH}, HUP}, 163{{NULL, "ignorebraces", OPT_EMULATE|OPT_SH}, IGNOREBRACES}, 164{{NULL, "ignoreclosebraces", OPT_EMULATE}, IGNORECLOSEBRACES}, 165{{NULL, "ignoreeof", 0}, IGNOREEOF}, 166{{NULL, "incappendhistory", 0}, INCAPPENDHISTORY}, 167{{NULL, "interactive", OPT_SPECIAL}, INTERACTIVE}, 168{{NULL, "interactivecomments",OPT_BOURNE}, INTERACTIVECOMMENTS}, 169{{NULL, "ksharrays", OPT_EMULATE|OPT_BOURNE}, KSHARRAYS}, 170{{NULL, "kshautoload", OPT_EMULATE|OPT_BOURNE}, KSHAUTOLOAD}, 171{{NULL, "kshglob", OPT_EMULATE|OPT_KSH}, KSHGLOB}, 172{{NULL, "kshoptionprint", OPT_EMULATE|OPT_KSH}, KSHOPTIONPRINT}, 173{{NULL, "kshtypeset", OPT_EMULATE|OPT_KSH}, KSHTYPESET}, 174{{NULL, "kshzerosubscript", 0}, KSHZEROSUBSCRIPT}, 175{{NULL, "listambiguous", OPT_ALL}, LISTAMBIGUOUS}, 176{{NULL, "listbeep", OPT_ALL}, LISTBEEP}, 177{{NULL, "listpacked", 0}, LISTPACKED}, 178{{NULL, "listrowsfirst", 0}, LISTROWSFIRST}, 179{{NULL, "listtypes", OPT_ALL}, LISTTYPES}, 180{{NULL, "localoptions", OPT_EMULATE|OPT_KSH}, LOCALOPTIONS}, 181{{NULL, "localtraps", OPT_EMULATE|OPT_KSH}, LOCALTRAPS}, 182{{NULL, "login", OPT_SPECIAL}, LOGINSHELL}, 183{{NULL, "longlistjobs", 0}, LONGLISTJOBS}, 184{{NULL, "magicequalsubst", OPT_EMULATE}, MAGICEQUALSUBST}, 185{{NULL, "mailwarning", 0}, MAILWARNING}, 186{{NULL, "markdirs", 0}, MARKDIRS}, 187{{NULL, "menucomplete", 0}, MENUCOMPLETE}, 188{{NULL, "monitor", OPT_SPECIAL}, MONITOR}, 189{{NULL, "multibyte", 190#ifdef MULTIBYTE_SUPPORT 191 OPT_EMULATE|OPT_ZSH|OPT_CSH|OPT_KSH 192#else 193 0 194#endif 195 }, MULTIBYTE}, 196{{NULL, "multifuncdef", OPT_EMULATE|OPT_ZSH}, MULTIFUNCDEF}, 197{{NULL, "multios", OPT_EMULATE|OPT_ZSH}, MULTIOS}, 198{{NULL, "nomatch", OPT_EMULATE|OPT_NONBOURNE},NOMATCH}, 199{{NULL, "notify", OPT_ZSH}, NOTIFY}, 200{{NULL, "nullglob", OPT_EMULATE}, NULLGLOB}, 201{{NULL, "numericglobsort", OPT_EMULATE}, NUMERICGLOBSORT}, 202{{NULL, "octalzeroes", OPT_EMULATE|OPT_SH}, OCTALZEROES}, 203{{NULL, "overstrike", 0}, OVERSTRIKE}, 204{{NULL, "pathdirs", OPT_EMULATE}, PATHDIRS}, 205{{NULL, "pathscript", OPT_EMULATE|OPT_BOURNE}, PATHSCRIPT}, 206{{NULL, "posixaliases", OPT_EMULATE|OPT_BOURNE}, POSIXALIASES}, 207{{NULL, "posixbuiltins", OPT_EMULATE|OPT_BOURNE}, POSIXBUILTINS}, 208{{NULL, "posixcd", OPT_EMULATE|OPT_BOURNE}, POSIXCD}, 209{{NULL, "posixidentifiers", OPT_EMULATE|OPT_BOURNE}, POSIXIDENTIFIERS}, 210{{NULL, "posixjobs", OPT_EMULATE|OPT_BOURNE}, POSIXJOBS}, 211{{NULL, "posixstrings", OPT_EMULATE|OPT_BOURNE}, POSIXSTRINGS}, 212{{NULL, "posixtraps", OPT_EMULATE|OPT_BOURNE}, POSIXTRAPS}, 213{{NULL, "printeightbit", 0}, PRINTEIGHTBIT}, 214{{NULL, "printexitvalue", 0}, PRINTEXITVALUE}, 215{{NULL, "privileged", OPT_SPECIAL}, PRIVILEGED}, 216{{NULL, "promptbang", OPT_KSH}, PROMPTBANG}, 217{{NULL, "promptcr", OPT_ALL}, PROMPTCR}, 218{{NULL, "promptpercent", OPT_NONBOURNE}, PROMPTPERCENT}, 219{{NULL, "promptsp", OPT_ALL}, PROMPTSP}, 220{{NULL, "promptsubst", OPT_BOURNE}, PROMPTSUBST}, 221{{NULL, "pushdignoredups", OPT_EMULATE}, PUSHDIGNOREDUPS}, 222{{NULL, "pushdminus", OPT_EMULATE}, PUSHDMINUS}, 223{{NULL, "pushdsilent", 0}, PUSHDSILENT}, 224{{NULL, "pushdtohome", OPT_EMULATE}, PUSHDTOHOME}, 225{{NULL, "rcexpandparam", OPT_EMULATE}, RCEXPANDPARAM}, 226{{NULL, "rcquotes", OPT_EMULATE}, RCQUOTES}, 227{{NULL, "rcs", OPT_ALL}, RCS}, 228{{NULL, "recexact", 0}, RECEXACT}, 229{{NULL, "rematchpcre", 0}, REMATCHPCRE}, 230{{NULL, "restricted", OPT_SPECIAL}, RESTRICTED}, 231{{NULL, "rmstarsilent", OPT_BOURNE}, RMSTARSILENT}, 232{{NULL, "rmstarwait", 0}, RMSTARWAIT}, 233{{NULL, "sharehistory", OPT_KSH}, SHAREHISTORY}, 234{{NULL, "shfileexpansion", OPT_EMULATE|OPT_BOURNE}, SHFILEEXPANSION}, 235{{NULL, "shglob", OPT_EMULATE|OPT_BOURNE}, SHGLOB}, 236{{NULL, "shinstdin", OPT_SPECIAL}, SHINSTDIN}, 237{{NULL, "shnullcmd", OPT_EMULATE|OPT_BOURNE}, SHNULLCMD}, 238{{NULL, "shoptionletters", OPT_EMULATE|OPT_BOURNE}, SHOPTIONLETTERS}, 239{{NULL, "shortloops", OPT_EMULATE|OPT_NONBOURNE},SHORTLOOPS}, 240{{NULL, "shwordsplit", OPT_EMULATE|OPT_BOURNE}, SHWORDSPLIT}, 241{{NULL, "singlecommand", OPT_SPECIAL}, SINGLECOMMAND}, 242{{NULL, "singlelinezle", OPT_KSH}, SINGLELINEZLE}, 243{{NULL, "sourcetrace", 0}, SOURCETRACE}, 244{{NULL, "sunkeyboardhack", 0}, SUNKEYBOARDHACK}, 245{{NULL, "transientrprompt", 0}, TRANSIENTRPROMPT}, 246{{NULL, "trapsasync", 0}, TRAPSASYNC}, 247{{NULL, "typesetsilent", OPT_EMULATE|OPT_BOURNE}, TYPESETSILENT}, 248{{NULL, "unset", OPT_EMULATE|OPT_BSHELL}, UNSET}, 249{{NULL, "verbose", 0}, VERBOSE}, 250{{NULL, "vi", 0}, VIMODE}, 251{{NULL, "warncreateglobal", 0}, WARNCREATEGLOBAL}, 252{{NULL, "xtrace", 0}, XTRACE}, 253{{NULL, "zle", OPT_SPECIAL}, USEZLE}, 254{{NULL, "braceexpand", OPT_ALIAS}, /* ksh/bash */ -IGNOREBRACES}, 255{{NULL, "dotglob", OPT_ALIAS}, /* bash */ GLOBDOTS}, 256{{NULL, "hashall", OPT_ALIAS}, /* bash */ HASHCMDS}, 257{{NULL, "histappend", OPT_ALIAS}, /* bash */ APPENDHISTORY}, 258{{NULL, "histexpand", OPT_ALIAS}, /* bash */ BANGHIST}, 259{{NULL, "log", OPT_ALIAS}, /* ksh */ -HISTNOFUNCTIONS}, 260{{NULL, "mailwarn", OPT_ALIAS}, /* bash */ MAILWARNING}, 261{{NULL, "onecmd", OPT_ALIAS}, /* bash */ SINGLECOMMAND}, 262{{NULL, "physical", OPT_ALIAS}, /* ksh/bash */ CHASELINKS}, 263{{NULL, "promptvars", OPT_ALIAS}, /* bash */ PROMPTSUBST}, 264{{NULL, "stdin", OPT_ALIAS}, /* ksh */ SHINSTDIN}, 265{{NULL, "trackall", OPT_ALIAS}, /* ksh */ HASHCMDS}, 266{{NULL, "dvorak", 0}, DVORAK}, 267{{NULL, NULL, 0}, 0} 268}; 269 270/* Option letters */ 271 272#define optletters (isset(SHOPTIONLETTERS) ? kshletters : zshletters) 273 274#define FIRST_OPT '0' 275#define LAST_OPT 'y' 276 277static short zshletters[LAST_OPT - FIRST_OPT + 1] = { 278 /* 0 */ CORRECT, 279 /* 1 */ PRINTEXITVALUE, 280 /* 2 */ -BADPATTERN, 281 /* 3 */ -NOMATCH, 282 /* 4 */ GLOBDOTS, 283 /* 5 */ NOTIFY, 284 /* 6 */ BGNICE, 285 /* 7 */ IGNOREEOF, 286 /* 8 */ MARKDIRS, 287 /* 9 */ AUTOLIST, 288 /* : */ 0, 289 /* ; */ 0, 290 /* < */ 0, 291 /* = */ 0, 292 /* > */ 0, 293 /* ? */ 0, 294 /* @ */ 0, 295 /* A */ 0, /* use with set for arrays */ 296 /* B */ -BEEP, 297 /* C */ -CLOBBER, 298 /* D */ PUSHDTOHOME, 299 /* E */ PUSHDSILENT, 300 /* F */ -GLOBOPT, 301 /* G */ NULLGLOB, 302 /* H */ RMSTARSILENT, 303 /* I */ IGNOREBRACES, 304 /* J */ AUTOCD, 305 /* K */ -BANGHIST, 306 /* L */ SUNKEYBOARDHACK, 307 /* M */ SINGLELINEZLE, 308 /* N */ AUTOPUSHD, 309 /* O */ CORRECTALL, 310 /* P */ RCEXPANDPARAM, 311 /* Q */ PATHDIRS, 312 /* R */ LONGLISTJOBS, 313 /* S */ RECEXACT, 314 /* T */ CDABLEVARS, 315 /* U */ MAILWARNING, 316 /* V */ -PROMPTCR, 317 /* W */ AUTORESUME, 318 /* X */ LISTTYPES, 319 /* Y */ MENUCOMPLETE, 320 /* Z */ USEZLE, 321 /* [ */ 0, 322 /* \ */ 0, 323 /* ] */ 0, 324 /* ^ */ 0, 325 /* _ */ 0, 326 /* ` */ 0, 327 /* a */ ALLEXPORT, 328 /* b */ 0, /* in non-Bourne shells, end of options */ 329 /* c */ 0, /* command follows */ 330 /* d */ -GLOBALRCS, 331 /* e */ ERREXIT, 332 /* f */ -RCS, 333 /* g */ HISTIGNORESPACE, 334 /* h */ HISTIGNOREDUPS, 335 /* i */ INTERACTIVE, 336 /* j */ 0, 337 /* k */ INTERACTIVECOMMENTS, 338 /* l */ LOGINSHELL, 339 /* m */ MONITOR, 340 /* n */ -EXECOPT, 341 /* o */ 0, /* long option name follows */ 342 /* p */ PRIVILEGED, 343 /* q */ 0, 344 /* r */ RESTRICTED, 345 /* s */ SHINSTDIN, 346 /* t */ SINGLECOMMAND, 347 /* u */ -UNSET, 348 /* v */ VERBOSE, 349 /* w */ CHASELINKS, 350 /* x */ XTRACE, 351 /* y */ SHWORDSPLIT, 352}; 353 354static short kshletters[LAST_OPT - FIRST_OPT + 1] = { 355 /* 0 */ 0, 356 /* 1 */ 0, 357 /* 2 */ 0, 358 /* 3 */ 0, 359 /* 4 */ 0, 360 /* 5 */ 0, 361 /* 6 */ 0, 362 /* 7 */ 0, 363 /* 8 */ 0, 364 /* 9 */ 0, 365 /* : */ 0, 366 /* ; */ 0, 367 /* < */ 0, 368 /* = */ 0, 369 /* > */ 0, 370 /* ? */ 0, 371 /* @ */ 0, 372 /* A */ 0, 373 /* B */ 0, 374 /* C */ -CLOBBER, 375 /* D */ 0, 376 /* E */ 0, 377 /* F */ 0, 378 /* G */ 0, 379 /* H */ 0, 380 /* I */ 0, 381 /* J */ 0, 382 /* K */ 0, 383 /* L */ 0, 384 /* M */ 0, 385 /* N */ 0, 386 /* O */ 0, 387 /* P */ 0, 388 /* Q */ 0, 389 /* R */ 0, 390 /* S */ 0, 391 /* T */ TRAPSASYNC, 392 /* U */ 0, 393 /* V */ 0, 394 /* W */ 0, 395 /* X */ MARKDIRS, 396 /* Y */ 0, 397 /* Z */ 0, 398 /* [ */ 0, 399 /* \ */ 0, 400 /* ] */ 0, 401 /* ^ */ 0, 402 /* _ */ 0, 403 /* ` */ 0, 404 /* a */ ALLEXPORT, 405 /* b */ NOTIFY, 406 /* c */ 0, 407 /* d */ 0, 408 /* e */ ERREXIT, 409 /* f */ -GLOBOPT, 410 /* g */ 0, 411 /* h */ 0, 412 /* i */ INTERACTIVE, 413 /* j */ 0, 414 /* k */ 0, 415 /* l */ LOGINSHELL, 416 /* m */ MONITOR, 417 /* n */ -EXECOPT, 418 /* o */ 0, 419 /* p */ PRIVILEGED, 420 /* q */ 0, 421 /* r */ RESTRICTED, 422 /* s */ SHINSTDIN, 423 /* t */ SINGLECOMMAND, 424 /* u */ -UNSET, 425 /* v */ VERBOSE, 426 /* w */ 0, 427 /* x */ XTRACE, 428 /* y */ 0, 429}; 430 431/* Initialisation of the option name hash table */ 432 433/**/ 434static void 435printoptionnode(HashNode hn, int set) 436{ 437 Optname on = (Optname) hn; 438 int optno = on->optno; 439 440 if (optno < 0) 441 optno = -optno; 442 if (isset(KSHOPTIONPRINT)) { 443 if (defset(on, emulation)) 444 printf("no%-19s %s\n", on->node.nam, isset(optno) ? "off" : "on"); 445 else 446 printf("%-21s %s\n", on->node.nam, isset(optno) ? "on" : "off"); 447 } else if (set == (isset(optno) ^ defset(on, emulation))) { 448 if (set ^ isset(optno)) 449 fputs("no", stdout); 450 puts(on->node.nam); 451 } 452} 453 454/**/ 455void 456createoptiontable(void) 457{ 458 Optname on; 459 460 optiontab = newhashtable(101, "optiontab", NULL); 461 462 optiontab->hash = hasher; 463 optiontab->emptytable = NULL; 464 optiontab->filltable = NULL; 465 optiontab->cmpnodes = strcmp; 466 optiontab->addnode = addhashnode; 467 optiontab->getnode = gethashnode; 468 optiontab->getnode2 = gethashnode2; 469 optiontab->removenode = NULL; 470 optiontab->disablenode = disablehashnode; 471 optiontab->enablenode = enablehashnode; 472 optiontab->freenode = NULL; 473 optiontab->printnode = printoptionnode; 474 475 for (on = optns; on->node.nam; on++) 476 optiontab->addnode(optiontab, on->node.nam, on); 477} 478 479/* Emulation appropriate to the setemulate function */ 480 481static int setemulate_emulation; 482 483/* Option array manipulated within the setemulate function */ 484 485/**/ 486static char *setemulate_opts; 487 488/* Setting of default options */ 489 490/**/ 491static void 492setemulate(HashNode hn, int fully) 493{ 494 Optname on = (Optname) hn; 495 496 /* Set options: each non-special option is set according to the * 497 * current emulation mode if either it is considered relevant * 498 * to emulation or we are doing a full emulation (as indicated * 499 * by the `fully' parameter). */ 500 if (!(on->node.flags & OPT_ALIAS) && 501 ((fully && !(on->node.flags & OPT_SPECIAL)) || 502 (on->node.flags & OPT_EMULATE))) 503 setemulate_opts[on->optno] = defset(on, setemulate_emulation); 504} 505 506/**/ 507void 508installemulation(int new_emulation, char *new_opts) 509{ 510 setemulate_emulation = new_emulation; 511 setemulate_opts = new_opts; 512 scanhashtable(optiontab, 0, 0, 0, setemulate, 513 !!(new_emulation & EMULATE_FULLY)); 514} 515 516/**/ 517void 518emulate(const char *zsh_name, int fully, int *new_emulation, char *new_opts) 519{ 520 char ch = *zsh_name; 521 522 if (ch == 'r') 523 ch = zsh_name[1]; 524 525 /* Work out the new emulation mode */ 526 if (ch == 'c') 527 *new_emulation = EMULATE_CSH; 528 else if (ch == 'k') 529 *new_emulation = EMULATE_KSH; 530 else if (ch == 's' || ch == 'b') 531 *new_emulation = EMULATE_SH; 532 else 533 *new_emulation = EMULATE_ZSH; 534 535 if (fully) 536 *new_emulation |= EMULATE_FULLY; 537 installemulation(*new_emulation, new_opts); 538 539 if (funcstack && funcstack->tp == FS_FUNC) { 540 /* 541 * We are inside a function. Decide if it's traced. 542 * Pedantic note: the function in the function table isn't 543 * guaranteed to be what we're executing, but it's 544 * close enough. 545 */ 546 Shfunc shf = (Shfunc)shfunctab->getnode(shfunctab, funcstack->name); 547 if (shf && (shf->node.flags & (PM_TAGGED|PM_TAGGED_LOCAL))) { 548 /* Tracing is on, so set xtrace */ 549 new_opts[XTRACE] = 1; 550 } 551 } 552} 553 554/* setopt, unsetopt */ 555 556/**/ 557static void 558setoption(HashNode hn, int value) 559{ 560 dosetopt(((Optname) hn)->optno, value, 0, opts); 561} 562 563/**/ 564int 565bin_setopt(char *nam, char **args, UNUSED(Options ops), int isun) 566{ 567 int action, optno, match = 0; 568 569 /* With no arguments or options, display options. */ 570 if (!*args) { 571 scanhashtable(optiontab, 1, 0, OPT_ALIAS, optiontab->printnode, !isun); 572 return 0; 573 } 574 575 /* loop through command line options (begins with "-" or "+") */ 576 while (*args && (**args == '-' || **args == '+')) { 577 action = (**args == '-') ^ isun; 578 if(!args[0][1]) 579 *args = "--"; 580 while (*++*args) { 581 if(**args == Meta) 582 *++*args ^= 32; 583 /* The pseudo-option `--' signifies the end of options. */ 584 if (**args == '-') { 585 args++; 586 goto doneoptions; 587 } else if (**args == 'o') { 588 if (!*++*args) 589 args++; 590 if (!*args) { 591 zwarnnam(nam, "string expected after -o"); 592 inittyptab(); 593 return 1; 594 } 595 if(!(optno = optlookup(*args))) 596 zwarnnam(nam, "no such option: %s", *args); 597 else if(dosetopt(optno, action, 0, opts)) 598 zwarnnam(nam, "can't change option: %s", *args); 599 break; 600 } else if(**args == 'm') { 601 match = 1; 602 } else { 603 if (!(optno = optlookupc(**args))) 604 zwarnnam(nam, "bad option: -%c", **args); 605 else if(dosetopt(optno, action, 0, opts)) 606 zwarnnam(nam, "can't change option: -%c", **args); 607 } 608 } 609 args++; 610 } 611 doneoptions: 612 613 if (!match) { 614 /* Not globbing the arguments -- arguments are simply option names. */ 615 while (*args) { 616 if(!(optno = optlookup(*args++))) 617 zwarnnam(nam, "no such option: %s", args[-1]); 618 else if(dosetopt(optno, !isun, 0, opts)) 619 zwarnnam(nam, "can't change option: %s", args[-1]); 620 } 621 } else { 622 /* Globbing option (-m) set. */ 623 while (*args) { 624 Patprog pprog; 625 char *s, *t; 626 627 t = s = dupstring(*args); 628 while (*t) 629 if (*t == '_') 630 chuck(t); 631 else { 632 /* See comment in optlookup() */ 633 if (*t >= 'A' && *t <= 'Z') 634 *t = (*t - 'A') + 'a'; 635 t++; 636 } 637 638 /* Expand the current arg. */ 639 tokenize(s); 640 if (!(pprog = patcompile(s, PAT_STATIC, NULL))) { 641 zwarnnam(nam, "bad pattern: %s", *args); 642 continue; 643 } 644 /* Loop over expansions. */ 645 scanmatchtable(optiontab, pprog, 0, 0, OPT_ALIAS, 646 setoption, !isun); 647 args++; 648 } 649 } 650 inittyptab(); 651 return 0; 652} 653 654/* Identify an option name */ 655 656/**/ 657mod_export int 658optlookup(char const *name) 659{ 660 char *s, *t; 661 Optname n; 662 663 s = t = dupstring(name); 664 665 /* exorcise underscores, and change to lowercase */ 666 while (*t) 667 if (*t == '_') 668 chuck(t); 669 else { 670 /* 671 * Some locales (in particular tr_TR.UTF-8) may 672 * have non-standard mappings of ASCII characters, 673 * so be careful. Option names must be ASCII so 674 * we don't need to be too clever. 675 */ 676 if (*t >= 'A' && *t <= 'Z') 677 *t = (*t - 'A') + 'a'; 678 t++; 679 } 680 681 /* look up name in the table */ 682 if (s[0] == 'n' && s[1] == 'o' && 683 (n = (Optname) optiontab->getnode(optiontab, s + 2))) { 684 return -n->optno; 685 } else if ((n = (Optname) optiontab->getnode(optiontab, s))) 686 return n->optno; 687 else 688 return OPT_INVALID; 689} 690 691/* Identify an option letter */ 692 693/**/ 694int 695optlookupc(char c) 696{ 697 if(c < FIRST_OPT || c > LAST_OPT) 698 return 0; 699 700 return optletters[c - FIRST_OPT]; 701} 702 703/**/ 704static void 705restrictparam(char *nam) 706{ 707 Param pm = (Param) paramtab->getnode(paramtab, nam); 708 709 if (pm) { 710 pm->node.flags |= PM_SPECIAL | PM_RESTRICTED; 711 return; 712 } 713 createparam(nam, PM_SCALAR | PM_UNSET | PM_SPECIAL | PM_RESTRICTED); 714} 715 716/* list of restricted parameters which are not otherwise special */ 717static char *rparams[] = { 718 "SHELL", "HISTFILE", "LD_LIBRARY_PATH", "LD_AOUT_LIBRARY_PATH", 719 "LD_PRELOAD", "LD_AOUT_PRELOAD", NULL 720}; 721 722/* Set or unset an option, as a result of user request. The option * 723 * number may be negative, indicating that the sense is reversed * 724 * from the usual meaning of the option. */ 725 726/**/ 727mod_export int 728dosetopt(int optno, int value, int force, char *new_opts) 729{ 730 if(!optno) 731 return -1; 732 if(optno < 0) { 733 optno = -optno; 734 value = !value; 735 } 736 if (optno == RESTRICTED) { 737 if (isset(RESTRICTED)) 738 return value ? 0 : -1; 739 if (value) { 740 char **s; 741 742 for (s = rparams; *s; s++) 743 restrictparam(*s); 744 } 745 } else if(!force && optno == EXECOPT && !value && interact) { 746 /* cannot set noexec when interactive */ 747 return -1; 748 } else if(!force && (optno == INTERACTIVE || optno == SHINSTDIN || 749 optno == SINGLECOMMAND)) { 750 if (new_opts[optno] == value) 751 return 0; 752 /* it is not permitted to change the value of these options */ 753 return -1; 754 } else if(!force && optno == USEZLE && value) { 755 /* we require a terminal in order to use ZLE */ 756 if(!interact || SHTTY == -1 || !shout) 757 return -1; 758 } else if(optno == PRIVILEGED && !value) { 759 /* unsetting PRIVILEGED causes the shell to make itself unprivileged */ 760#ifdef HAVE_SETUID 761 setuid(getuid()); 762 setgid(getgid()); 763#endif /* HAVE_SETUID */ 764#ifdef JOB_CONTROL 765 } else if (!force && optno == MONITOR && value) { 766 if (new_opts[optno] == value) 767 return 0; 768 if (SHTTY != -1) { 769 origpgrp = GETPGRP(); 770 acquire_pgrp(); 771 } else 772 return -1; 773#else 774 } else if(optno == MONITOR && value) { 775 return -1; 776#endif /* not JOB_CONTROL */ 777#ifdef GETPWNAM_FAKED 778 } else if(optno == CDABLEVARS && value) { 779 return -1; 780#endif /* GETPWNAM_FAKED */ 781 } else if ((optno == EMACSMODE || optno == VIMODE) && value) { 782 if (sticky && sticky->emulation) 783 return -1; 784 zleentry(ZLE_CMD_SET_KEYMAP, optno); 785 new_opts[(optno == EMACSMODE) ? VIMODE : EMACSMODE] = 0; 786 } else if (optno == SUNKEYBOARDHACK) { 787 /* for backward compatibility */ 788 keyboardhackchar = (value ? '`' : '\0'); 789 } 790 new_opts[optno] = value; 791 if (optno == BANGHIST || optno == SHINSTDIN) 792 inittyptab(); 793 return 0; 794} 795 796/* Function to get value for special parameter `-' */ 797 798/**/ 799char * 800dashgetfn(UNUSED(Param pm)) 801{ 802 static char buf[LAST_OPT - FIRST_OPT + 2]; 803 char *val = buf; 804 int i; 805 806 for(i = 0; i <= LAST_OPT - FIRST_OPT; i++) { 807 int optno = optletters[i]; 808 if(optno && ((optno > 0) ? isset(optno) : unset(-optno))) 809 *val++ = FIRST_OPT + i; 810 } 811 *val = '\0'; 812 return buf; 813} 814 815/* print options for set -o/+o */ 816 817/**/ 818void 819printoptionstates(int hadplus) 820{ 821 scanhashtable(optiontab, 1, 0, OPT_ALIAS, printoptionnodestate, hadplus); 822} 823 824/**/ 825static void 826printoptionnodestate(HashNode hn, int hadplus) 827{ 828 Optname on = (Optname) hn; 829 int optno = on->optno; 830 831 if (hadplus) { 832 if (defset(on, emulation) != isset(optno)) 833 printf("set -o %s%s\n", defset(on, emulation) ? 834 "no" : "", on->node.nam); 835 } else { 836 if (defset(on, emulation)) 837 printf("no%-19s %s\n", on->node.nam, isset(optno) ? "off" : "on"); 838 else 839 printf("%-21s %s\n", on->node.nam, isset(optno) ? "on" : "off"); 840 } 841} 842 843/* Print option list for --help */ 844 845/**/ 846void 847printoptionlist(void) 848{ 849 short *lp; 850 char c; 851 852 printf("\nNamed options:\n"); 853 scanhashtable(optiontab, 1, 0, OPT_ALIAS, printoptionlist_printoption, 0); 854 printf("\nOption aliases:\n"); 855 scanhashtable(optiontab, 1, OPT_ALIAS, 0, printoptionlist_printoption, 0); 856 printf("\nOption letters:\n"); 857 for(lp = optletters, c = FIRST_OPT; c <= LAST_OPT; lp++, c++) { 858 if(!*lp) 859 continue; 860 printf(" -%c ", c); 861 printoptionlist_printequiv(*lp); 862 } 863} 864 865/**/ 866static void 867printoptionlist_printoption(HashNode hn, UNUSED(int ignored)) 868{ 869 Optname on = (Optname) hn; 870 871 if(on->node.flags & OPT_ALIAS) { 872 printf(" --%-19s ", on->node.nam); 873 printoptionlist_printequiv(on->optno); 874 } else 875 printf(" --%s\n", on->node.nam); 876} 877 878/**/ 879static void 880printoptionlist_printequiv(int optno) 881{ 882 int isneg = optno < 0; 883 884 optno *= (isneg ? -1 : 1); 885 printf(" equivalent to --%s%s\n", isneg ? "no-" : "", optns[optno-1].node.nam); 886} 887