mirror of
git://git.code.sf.net/p/zsh/code
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9743c19d61
Src/zsh.mdd: Allow options to be specified on the zsh command line in the form of GNU-style long options. Also handle --version and --help. Do not permit extra option letters to be stacked after `-whatever-' (they used to be ignored). Exit if the command line specifies an option name that doesn't exist.
742 lines
22 KiB
C
742 lines
22 KiB
C
/*
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* options.c - shell options
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*
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* This file is part of zsh, the Z shell.
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*
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* Copyright (c) 1992-1997 Paul Falstad
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* All rights reserved.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and to distribute modified versions of this software for any
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* purpose, provided that the above copyright notice and the following
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* two paragraphs appear in all copies of this software.
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*
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* In no event shall Paul Falstad or the Zsh Development Group be liable
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* to any party for direct, indirect, special, incidental, or consequential
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* damages arising out of the use of this software and its documentation,
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* even if Paul Falstad and the Zsh Development Group have been advised of
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* the possibility of such damage.
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*
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* Paul Falstad and the Zsh Development Group specifically disclaim any
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* warranties, including, but not limited to, the implied warranties of
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* merchantability and fitness for a particular purpose. The software
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* provided hereunder is on an "as is" basis, and Paul Falstad and the
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* Zsh Development Group have no obligation to provide maintenance,
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* support, updates, enhancements, or modifications.
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*
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*/
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#include "zsh.mdh"
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#include "options.pro"
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/* current emulation (used to decide which set of option letters is used) */
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/**/
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int emulation;
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/* the options; e.g. if opts[SHGLOB] != 0, SH_GLOB is turned on */
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/**/
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mod_export char opts[OPT_SIZE];
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/* Option name hash table */
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/**/
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mod_export HashTable optiontab;
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/* The canonical option name table */
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#define OPT_CSH EMULATE_CSH
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#define OPT_KSH EMULATE_KSH
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#define OPT_SH EMULATE_SH
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#define OPT_ZSH EMULATE_ZSH
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#define OPT_ALL (OPT_CSH|OPT_KSH|OPT_SH|OPT_ZSH)
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#define OPT_BOURNE (OPT_KSH|OPT_SH)
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#define OPT_BSHELL (OPT_KSH|OPT_SH|OPT_ZSH)
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#define OPT_NONBOURNE (OPT_ALL & ~OPT_BOURNE)
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#define OPT_NONZSH (OPT_ALL & ~OPT_ZSH)
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#define OPT_EMULATE (1<<5) /* option is relevant to emulation */
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#define OPT_SPECIAL (1<<6) /* option should never be set by emulate() */
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#define OPT_ALIAS (1<<7) /* option is an alias to an other option */
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#define defset(X) (!!((X)->flags & emulation))
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/*
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* Note that option names should usually be fewer than 20 characters long
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* to avoid formatting problems.
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*/
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static struct optname optns[] = {
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{NULL, "allexport", OPT_EMULATE, ALLEXPORT},
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{NULL, "alwayslastprompt", OPT_ALL, ALWAYSLASTPROMPT},
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{NULL, "alwaystoend", 0, ALWAYSTOEND},
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{NULL, "appendhistory", OPT_ALL, APPENDHISTORY},
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{NULL, "autocd", OPT_EMULATE, AUTOCD},
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{NULL, "autolist", OPT_ALL, AUTOLIST},
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{NULL, "automenu", OPT_ALL, AUTOMENU},
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{NULL, "autonamedirs", 0, AUTONAMEDIRS},
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{NULL, "autoparamkeys", OPT_ALL, AUTOPARAMKEYS},
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{NULL, "autoparamslash", OPT_ALL, AUTOPARAMSLASH},
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{NULL, "autopushd", 0, AUTOPUSHD},
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{NULL, "autoremoveslash", OPT_ALL, AUTOREMOVESLASH},
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{NULL, "autoresume", 0, AUTORESUME},
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{NULL, "badpattern", OPT_EMULATE|OPT_NONBOURNE, BADPATTERN},
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{NULL, "banghist", OPT_NONBOURNE, BANGHIST},
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{NULL, "bareglobqual", OPT_EMULATE|OPT_ZSH, BAREGLOBQUAL},
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{NULL, "bashautolist", 0, BASHAUTOLIST},
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{NULL, "beep", OPT_ALL, BEEP},
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{NULL, "bgnice", OPT_EMULATE|OPT_NONBOURNE, BGNICE},
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{NULL, "braceccl", OPT_EMULATE, BRACECCL},
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{NULL, "bsdecho", OPT_EMULATE|OPT_SH, BSDECHO},
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{NULL, "cdablevars", OPT_EMULATE, CDABLEVARS},
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{NULL, "chasedots", OPT_EMULATE, CHASEDOTS},
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{NULL, "chaselinks", OPT_EMULATE, CHASELINKS},
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{NULL, "checkjobs", OPT_EMULATE|OPT_ZSH, CHECKJOBS},
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{NULL, "clobber", OPT_EMULATE|OPT_ALL, CLOBBER},
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{NULL, "completealiases", 0, COMPLETEALIASES},
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{NULL, "completeinword", 0, COMPLETEINWORD},
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{NULL, "correct", 0, CORRECT},
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{NULL, "correctall", 0, CORRECTALL},
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{NULL, "cshjunkiehistory", OPT_EMULATE|OPT_CSH, CSHJUNKIEHISTORY},
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{NULL, "cshjunkieloops", OPT_EMULATE|OPT_CSH, CSHJUNKIELOOPS},
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{NULL, "cshjunkiequotes", OPT_EMULATE|OPT_CSH, CSHJUNKIEQUOTES},
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{NULL, "cshnullcmd", OPT_EMULATE|OPT_CSH, CSHNULLCMD},
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{NULL, "cshnullglob", OPT_EMULATE|OPT_CSH, CSHNULLGLOB},
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{NULL, "equals", OPT_EMULATE|OPT_ZSH, EQUALS},
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{NULL, "errexit", OPT_EMULATE, ERREXIT},
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{NULL, "exec", OPT_ALL, EXECOPT},
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{NULL, "extendedglob", OPT_EMULATE, EXTENDEDGLOB},
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{NULL, "extendedhistory", OPT_CSH, EXTENDEDHISTORY},
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{NULL, "flowcontrol", OPT_ALL, FLOWCONTROL},
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{NULL, "functionargzero", OPT_EMULATE|OPT_NONBOURNE, FUNCTIONARGZERO},
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{NULL, "glob", OPT_EMULATE|OPT_ALL, GLOBOPT},
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{NULL, "globalexport", OPT_EMULATE|OPT_ZSH, GLOBALEXPORT},
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{NULL, "globalrcs", OPT_ALL, GLOBALRCS},
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{NULL, "globassign", OPT_EMULATE|OPT_CSH, GLOBASSIGN},
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{NULL, "globcomplete", 0, GLOBCOMPLETE},
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{NULL, "globdots", OPT_EMULATE, GLOBDOTS},
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{NULL, "globsubst", OPT_EMULATE|OPT_NONZSH, GLOBSUBST},
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{NULL, "hashcmds", OPT_ALL, HASHCMDS},
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{NULL, "hashdirs", OPT_ALL, HASHDIRS},
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{NULL, "hashlistall", OPT_ALL, HASHLISTALL},
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{NULL, "histallowclobber", 0, HISTALLOWCLOBBER},
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{NULL, "histbeep", OPT_ALL, HISTBEEP},
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{NULL, "histexpiredupsfirst", 0, HISTEXPIREDUPSFIRST},
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{NULL, "histfindnodups", 0, HISTFINDNODUPS},
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{NULL, "histignorealldups", 0, HISTIGNOREALLDUPS},
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{NULL, "histignoredups", 0, HISTIGNOREDUPS},
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{NULL, "histignorespace", 0, HISTIGNORESPACE},
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{NULL, "histnofunctions", 0, HISTNOFUNCTIONS},
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{NULL, "histnostore", 0, HISTNOSTORE},
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{NULL, "histreduceblanks", 0, HISTREDUCEBLANKS},
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{NULL, "histsavenodups", 0, HISTSAVENODUPS},
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{NULL, "histverify", 0, HISTVERIFY},
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{NULL, "hup", OPT_EMULATE|OPT_ZSH, HUP},
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{NULL, "ignorebraces", OPT_EMULATE|OPT_SH, IGNOREBRACES},
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{NULL, "ignoreeof", 0, IGNOREEOF},
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{NULL, "incappendhistory", 0, INCAPPENDHISTORY},
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{NULL, "interactive", OPT_SPECIAL, INTERACTIVE},
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{NULL, "interactivecomments", OPT_BOURNE, INTERACTIVECOMMENTS},
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{NULL, "ksharrays", OPT_EMULATE|OPT_BOURNE, KSHARRAYS},
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{NULL, "kshautoload", OPT_EMULATE|OPT_BOURNE, KSHAUTOLOAD},
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{NULL, "kshglob", OPT_EMULATE|OPT_KSH, KSHGLOB},
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{NULL, "kshoptionprint", OPT_EMULATE|OPT_KSH, KSHOPTIONPRINT},
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{NULL, "listambiguous", OPT_ALL, LISTAMBIGUOUS},
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{NULL, "listbeep", OPT_ALL, LISTBEEP},
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{NULL, "listpacked", 0, LISTPACKED},
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{NULL, "listrowsfirst", 0, LISTROWSFIRST},
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{NULL, "listtypes", OPT_ALL, LISTTYPES},
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{NULL, "localoptions", OPT_EMULATE|OPT_KSH, LOCALOPTIONS},
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{NULL, "localtraps", OPT_EMULATE|OPT_KSH, LOCALTRAPS},
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{NULL, "login", OPT_SPECIAL, LOGINSHELL},
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{NULL, "longlistjobs", 0, LONGLISTJOBS},
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{NULL, "magicequalsubst", OPT_EMULATE, MAGICEQUALSUBST},
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{NULL, "mailwarning", 0, MAILWARNING},
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{NULL, "markdirs", 0, MARKDIRS},
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{NULL, "menucomplete", 0, MENUCOMPLETE},
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{NULL, "monitor", OPT_SPECIAL, MONITOR},
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{NULL, "multios", OPT_EMULATE|OPT_ZSH, MULTIOS},
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{NULL, "nomatch", OPT_EMULATE|OPT_NONBOURNE, NOMATCH},
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{NULL, "notify", OPT_ZSH, NOTIFY},
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{NULL, "nullglob", OPT_EMULATE, NULLGLOB},
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{NULL, "numericglobsort", OPT_EMULATE, NUMERICGLOBSORT},
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{NULL, "octalzeroes", OPT_EMULATE|OPT_SH, OCTALZEROES},
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{NULL, "overstrike", 0, OVERSTRIKE},
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{NULL, "pathdirs", OPT_EMULATE, PATHDIRS},
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{NULL, "posixbuiltins", OPT_EMULATE|OPT_BOURNE, POSIXBUILTINS},
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{NULL, "printeightbit", 0, PRINTEIGHTBIT},
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{NULL, "printexitvalue", 0, PRINTEXITVALUE},
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{NULL, "privileged", OPT_SPECIAL, PRIVILEGED},
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{NULL, "promptbang", OPT_KSH, PROMPTBANG},
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{NULL, "promptcr", OPT_ALL, PROMPTCR},
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{NULL, "promptpercent", OPT_NONBOURNE, PROMPTPERCENT},
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{NULL, "promptsubst", OPT_KSH, PROMPTSUBST},
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{NULL, "pushdignoredups", OPT_EMULATE, PUSHDIGNOREDUPS},
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{NULL, "pushdminus", OPT_EMULATE, PUSHDMINUS},
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{NULL, "pushdsilent", 0, PUSHDSILENT},
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{NULL, "pushdtohome", OPT_EMULATE, PUSHDTOHOME},
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{NULL, "rcexpandparam", OPT_EMULATE, RCEXPANDPARAM},
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{NULL, "rcquotes", OPT_EMULATE, RCQUOTES},
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{NULL, "rcs", OPT_ALL, RCS},
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{NULL, "recexact", 0, RECEXACT},
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{NULL, "restricted", OPT_SPECIAL, RESTRICTED},
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{NULL, "rmstarsilent", OPT_BOURNE, RMSTARSILENT},
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{NULL, "rmstarwait", 0, RMSTARWAIT},
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{NULL, "sharehistory", OPT_KSH, SHAREHISTORY},
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{NULL, "shfileexpansion", OPT_EMULATE|OPT_BOURNE, SHFILEEXPANSION},
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{NULL, "shglob", OPT_EMULATE|OPT_BOURNE, SHGLOB},
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{NULL, "shinstdin", OPT_SPECIAL, SHINSTDIN},
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{NULL, "shnullcmd", OPT_EMULATE|OPT_BOURNE, SHNULLCMD},
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{NULL, "shoptionletters", OPT_EMULATE|OPT_BOURNE, SHOPTIONLETTERS},
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{NULL, "shortloops", OPT_EMULATE|OPT_NONBOURNE, SHORTLOOPS},
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{NULL, "shwordsplit", OPT_EMULATE|OPT_BOURNE, SHWORDSPLIT},
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{NULL, "singlecommand", OPT_SPECIAL, SINGLECOMMAND},
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{NULL, "singlelinezle", OPT_KSH, SINGLELINEZLE},
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{NULL, "sunkeyboardhack", 0, SUNKEYBOARDHACK},
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{NULL, "unset", OPT_EMULATE|OPT_BSHELL, UNSET},
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{NULL, "verbose", 0, VERBOSE},
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{NULL, "xtrace", 0, XTRACE},
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{NULL, "zle", OPT_SPECIAL, USEZLE},
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{NULL, "braceexpand", OPT_ALIAS, /* ksh/bash */ -IGNOREBRACES},
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{NULL, "dotglob", OPT_ALIAS, /* bash */ GLOBDOTS},
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{NULL, "hashall", OPT_ALIAS, /* bash */ HASHCMDS},
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{NULL, "histappend", OPT_ALIAS, /* bash */ APPENDHISTORY},
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{NULL, "histexpand", OPT_ALIAS, /* bash */ BANGHIST},
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{NULL, "log", OPT_ALIAS, /* ksh */ -HISTNOFUNCTIONS},
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{NULL, "mailwarn", OPT_ALIAS, /* bash */ MAILWARNING},
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{NULL, "onecmd", OPT_ALIAS, /* bash */ SINGLECOMMAND},
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{NULL, "physical", OPT_ALIAS, /* ksh/bash */ CHASELINKS},
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{NULL, "promptvars", OPT_ALIAS, /* bash */ PROMPTSUBST},
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{NULL, "stdin", OPT_ALIAS, /* ksh */ SHINSTDIN},
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{NULL, "trackall", OPT_ALIAS, /* ksh */ HASHCMDS},
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{NULL, "dvorak", 0, DVORAK},
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{NULL, NULL, 0, 0}
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};
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/* Option letters */
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#define optletters (isset(SHOPTIONLETTERS) ? kshletters : zshletters)
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#define FIRST_OPT '0'
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#define LAST_OPT 'y'
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static short zshletters[LAST_OPT - FIRST_OPT + 1] = {
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/* 0 */ CORRECT,
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/* 1 */ PRINTEXITVALUE,
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/* 2 */ -BADPATTERN,
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/* 3 */ -NOMATCH,
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/* 4 */ GLOBDOTS,
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/* 5 */ NOTIFY,
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/* 6 */ BGNICE,
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/* 7 */ IGNOREEOF,
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/* 8 */ MARKDIRS,
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/* 9 */ AUTOLIST,
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/* : */ 0,
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/* ; */ 0,
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/* < */ 0,
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/* = */ 0,
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/* > */ 0,
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/* ? */ 0,
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/* @ */ 0,
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/* A */ 0, /* use with set for arrays */
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/* B */ -BEEP,
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/* C */ -CLOBBER,
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/* D */ PUSHDTOHOME,
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/* E */ PUSHDSILENT,
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/* F */ -GLOBOPT,
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/* G */ NULLGLOB,
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/* H */ RMSTARSILENT,
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/* I */ IGNOREBRACES,
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/* J */ AUTOCD,
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/* K */ -BANGHIST,
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/* L */ SUNKEYBOARDHACK,
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/* M */ SINGLELINEZLE,
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/* N */ AUTOPUSHD,
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/* O */ CORRECTALL,
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/* P */ RCEXPANDPARAM,
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/* Q */ PATHDIRS,
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/* R */ LONGLISTJOBS,
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/* S */ RECEXACT,
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/* T */ CDABLEVARS,
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/* U */ MAILWARNING,
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/* V */ -PROMPTCR,
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/* W */ AUTORESUME,
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/* X */ LISTTYPES,
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/* Y */ MENUCOMPLETE,
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/* Z */ USEZLE,
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/* [ */ 0,
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/* \ */ 0,
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/* ] */ 0,
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/* ^ */ 0,
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/* _ */ 0,
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/* ` */ 0,
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/* a */ ALLEXPORT,
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/* b */ 0, /* in non-Bourne shells, end of options */
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/* c */ 0, /* command follows */
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/* d */ -GLOBALRCS,
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/* e */ ERREXIT,
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/* f */ -RCS,
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/* g */ HISTIGNORESPACE,
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/* h */ HISTIGNOREDUPS,
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/* i */ INTERACTIVE,
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/* j */ 0,
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/* k */ INTERACTIVECOMMENTS,
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/* l */ LOGINSHELL,
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/* m */ MONITOR,
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/* n */ -EXECOPT,
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/* o */ 0, /* long option name follows */
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/* p */ PRIVILEGED,
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/* q */ 0,
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/* r */ RESTRICTED,
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/* s */ SHINSTDIN,
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/* t */ SINGLECOMMAND,
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/* u */ -UNSET,
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/* v */ VERBOSE,
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/* w */ CHASELINKS,
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/* x */ XTRACE,
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/* y */ SHWORDSPLIT,
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};
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static short kshletters[LAST_OPT - FIRST_OPT + 1] = {
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/* 0 */ 0,
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/* 1 */ 0,
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/* 2 */ 0,
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/* 3 */ 0,
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/* 4 */ 0,
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/* 5 */ 0,
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/* 6 */ 0,
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/* 7 */ 0,
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/* 8 */ 0,
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/* 9 */ 0,
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/* : */ 0,
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/* ; */ 0,
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/* < */ 0,
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/* = */ 0,
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/* > */ 0,
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/* ? */ 0,
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/* @ */ 0,
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/* A */ 0,
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/* B */ 0,
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/* C */ -CLOBBER,
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/* D */ 0,
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/* E */ 0,
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/* F */ 0,
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/* G */ 0,
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/* H */ 0,
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/* I */ 0,
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/* J */ 0,
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/* K */ 0,
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/* L */ 0,
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/* M */ 0,
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/* N */ 0,
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/* O */ 0,
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/* P */ 0,
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/* Q */ 0,
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/* R */ 0,
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/* S */ 0,
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/* T */ 0,
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/* U */ 0,
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/* V */ 0,
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/* W */ 0,
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/* X */ MARKDIRS,
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/* Y */ 0,
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/* Z */ 0,
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/* [ */ 0,
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/* \ */ 0,
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/* ] */ 0,
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/* ^ */ 0,
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/* _ */ 0,
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/* ` */ 0,
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/* a */ ALLEXPORT,
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/* b */ NOTIFY,
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/* c */ 0,
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/* d */ 0,
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/* e */ ERREXIT,
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/* f */ -GLOBOPT,
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/* g */ 0,
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/* h */ 0,
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/* i */ INTERACTIVE,
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/* j */ 0,
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/* k */ 0,
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/* l */ LOGINSHELL,
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/* m */ MONITOR,
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/* n */ -EXECOPT,
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/* o */ 0,
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/* p */ PRIVILEGED,
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/* q */ 0,
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/* r */ RESTRICTED,
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/* s */ SHINSTDIN,
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/* t */ SINGLECOMMAND,
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/* u */ -UNSET,
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/* v */ VERBOSE,
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/* w */ 0,
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/* x */ XTRACE,
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/* y */ 0,
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};
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/* Initialisation of the option name hash table */
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/**/
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static void
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printoptionnode(HashNode hn, int set)
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{
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Optname on = (Optname) hn;
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int optno = on->optno;
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if (optno < 0)
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optno = -optno;
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if (isset(KSHOPTIONPRINT)) {
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if (defset(on))
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printf("no%-19s %s\n", on->nam, isset(optno) ? "off" : "on");
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else
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printf("%-21s %s\n", on->nam, isset(optno) ? "on" : "off");
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} else if (set == (isset(optno) ^ defset(on))) {
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if (set ^ isset(optno))
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fputs("no", stdout);
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puts(on->nam);
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}
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}
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/**/
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void
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createoptiontable(void)
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{
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Optname on;
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optiontab = newhashtable(101, "optiontab", NULL);
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optiontab->hash = hasher;
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optiontab->emptytable = NULL;
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optiontab->filltable = NULL;
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optiontab->cmpnodes = strcmp;
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optiontab->addnode = addhashnode;
|
|
optiontab->getnode = gethashnode;
|
|
optiontab->getnode2 = gethashnode2;
|
|
optiontab->removenode = NULL;
|
|
optiontab->disablenode = disablehashnode;
|
|
optiontab->enablenode = enablehashnode;
|
|
optiontab->freenode = NULL;
|
|
optiontab->printnode = printoptionnode;
|
|
|
|
for (on = optns; on->nam; on++)
|
|
optiontab->addnode(optiontab, on->nam, on);
|
|
}
|
|
|
|
/* Setting of default options */
|
|
|
|
/**/
|
|
static void
|
|
setemulate(HashNode hn, int fully)
|
|
{
|
|
Optname on = (Optname) hn;
|
|
|
|
/* Set options: each non-special option is set according to the *
|
|
* current emulation mode if either it is considered relevant *
|
|
* to emulation or we are doing a full emulation (as indicated *
|
|
* by the `fully' parameter). */
|
|
if (!(on->flags & OPT_ALIAS) &&
|
|
((fully && !(on->flags & OPT_SPECIAL)) ||
|
|
(on->flags & OPT_EMULATE)))
|
|
opts[on->optno] = defset(on);
|
|
}
|
|
|
|
/**/
|
|
void
|
|
emulate(const char *zsh_name, int fully)
|
|
{
|
|
char ch = *zsh_name;
|
|
|
|
if (ch == 'r')
|
|
ch = zsh_name[1];
|
|
|
|
/* Work out the new emulation mode */
|
|
if (ch == 'c')
|
|
emulation = EMULATE_CSH;
|
|
else if (ch == 'k')
|
|
emulation = EMULATE_KSH;
|
|
else if (ch == 's' || ch == 'b')
|
|
emulation = EMULATE_SH;
|
|
else
|
|
emulation = EMULATE_ZSH;
|
|
|
|
scanhashtable(optiontab, 0, 0, 0, setemulate, fully);
|
|
}
|
|
|
|
/* setopt, unsetopt */
|
|
|
|
/**/
|
|
static void
|
|
setoption(HashNode hn, int value)
|
|
{
|
|
dosetopt(((Optname) hn)->optno, value, 0);
|
|
}
|
|
|
|
/**/
|
|
int
|
|
bin_setopt(char *nam, char **args, char *ops, int isun)
|
|
{
|
|
int action, optno, match = 0;
|
|
|
|
/* With no arguments or options, display options. */
|
|
if (!*args) {
|
|
scanhashtable(optiontab, 1, 0, OPT_ALIAS, optiontab->printnode, !isun);
|
|
return 0;
|
|
}
|
|
|
|
/* loop through command line options (begins with "-" or "+") */
|
|
while (*args && (**args == '-' || **args == '+')) {
|
|
action = (**args == '-') ^ isun;
|
|
if(!args[0][1])
|
|
*args = "--";
|
|
while (*++*args) {
|
|
if(**args == Meta)
|
|
*++*args ^= 32;
|
|
/* The pseudo-option `--' signifies the end of options. */
|
|
if (**args == '-') {
|
|
args++;
|
|
goto doneoptions;
|
|
} else if (**args == 'o') {
|
|
if (!*++*args)
|
|
args++;
|
|
if (!*args) {
|
|
zwarnnam(nam, "string expected after -o", NULL, 0);
|
|
inittyptab();
|
|
return 1;
|
|
}
|
|
if(!(optno = optlookup(*args)))
|
|
zwarnnam(nam, "no such option: %s", *args, 0);
|
|
else if(dosetopt(optno, action, 0))
|
|
zwarnnam(nam, "can't change option: %s", *args, 0);
|
|
break;
|
|
} else if(**args == 'm') {
|
|
match = 1;
|
|
} else {
|
|
if (!(optno = optlookupc(**args)))
|
|
zwarnnam(nam, "bad option: -%c", NULL, **args);
|
|
else if(dosetopt(optno, action, 0))
|
|
zwarnnam(nam, "can't change option: -%c", NULL, **args);
|
|
}
|
|
}
|
|
args++;
|
|
}
|
|
doneoptions:
|
|
|
|
if (!match) {
|
|
/* Not globbing the arguments -- arguments are simply option names. */
|
|
while (*args) {
|
|
if(!(optno = optlookup(*args++)))
|
|
zwarnnam(nam, "no such option: %s", args[-1], 0);
|
|
else if(dosetopt(optno, !isun, 0))
|
|
zwarnnam(nam, "can't change option: %s", args[-1], 0);
|
|
}
|
|
} else {
|
|
/* Globbing option (-m) set. */
|
|
while (*args) {
|
|
Patprog pprog;
|
|
char *s, *t;
|
|
|
|
t = s = dupstring(*args);
|
|
while (*t)
|
|
if (*t == '_')
|
|
chuck(t);
|
|
else {
|
|
*t = tulower(*t);
|
|
t++;
|
|
}
|
|
|
|
/* Expand the current arg. */
|
|
tokenize(s);
|
|
if (!(pprog = patcompile(s, PAT_STATIC, NULL))) {
|
|
zwarnnam(nam, "bad pattern: %s", *args, 0);
|
|
continue;
|
|
}
|
|
/* Loop over expansions. */
|
|
scanmatchtable(optiontab, pprog, 0, OPT_ALIAS, setoption, !isun);
|
|
args++;
|
|
}
|
|
}
|
|
inittyptab();
|
|
return 0;
|
|
}
|
|
|
|
/* Identify an option name */
|
|
|
|
/**/
|
|
mod_export int
|
|
optlookup(char const *name)
|
|
{
|
|
char *s, *t;
|
|
Optname n;
|
|
|
|
s = t = dupstring(name);
|
|
|
|
/* exorcise underscores, and change to lowercase */
|
|
while (*t)
|
|
if (*t == '_')
|
|
chuck(t);
|
|
else {
|
|
*t = tulower(*t);
|
|
t++;
|
|
}
|
|
|
|
/* look up name in the table */
|
|
if (s[0] == 'n' && s[1] == 'o' &&
|
|
(n = (Optname) optiontab->getnode(optiontab, s + 2))) {
|
|
return -n->optno;
|
|
} else if ((n = (Optname) optiontab->getnode(optiontab, s)))
|
|
return n->optno;
|
|
else
|
|
return OPT_INVALID;
|
|
}
|
|
|
|
/* Identify an option letter */
|
|
|
|
/**/
|
|
int
|
|
optlookupc(char c)
|
|
{
|
|
if(c < FIRST_OPT || c > LAST_OPT)
|
|
return 0;
|
|
|
|
return optletters[c - FIRST_OPT];
|
|
}
|
|
|
|
/**/
|
|
static void
|
|
restrictparam(char *nam)
|
|
{
|
|
Param pm = (Param) paramtab->getnode(paramtab, nam);
|
|
|
|
if (pm) {
|
|
pm->flags |= PM_SPECIAL | PM_RESTRICTED;
|
|
return;
|
|
}
|
|
createparam(nam, PM_SCALAR | PM_UNSET | PM_SPECIAL | PM_RESTRICTED);
|
|
}
|
|
|
|
/* list of restricted parameters which are not otherwise special */
|
|
static char *rparams[] = {
|
|
"SHELL", "HISTFILE", "LD_LIBRARY_PATH", "LD_AOUT_LIBRARY_PATH",
|
|
"LD_PRELOAD", "LD_AOUT_PRELOAD", NULL
|
|
};
|
|
|
|
/* Set or unset an option, as a result of user request. The option *
|
|
* number may be negative, indicating that the sense is reversed *
|
|
* from the usual meaning of the option. */
|
|
|
|
/**/
|
|
mod_export int
|
|
dosetopt(int optno, int value, int force)
|
|
{
|
|
if(!optno)
|
|
return -1;
|
|
if(optno < 0) {
|
|
optno = -optno;
|
|
value = !value;
|
|
}
|
|
if (optno == RESTRICTED) {
|
|
if (isset(RESTRICTED))
|
|
return value ? 0 : -1;
|
|
if (value) {
|
|
char **s;
|
|
|
|
for (s = rparams; *s; s++)
|
|
restrictparam(*s);
|
|
}
|
|
} else if(!force && (optno == INTERACTIVE || optno == SHINSTDIN ||
|
|
optno == SINGLECOMMAND)) {
|
|
if (opts[optno] == value)
|
|
return 0;
|
|
/* it is not permitted to change the value of these options */
|
|
return -1;
|
|
} else if(!force && optno == USEZLE && value) {
|
|
/* we require a terminal in order to use ZLE */
|
|
if(!interact || SHTTY == -1 || !shout)
|
|
return -1;
|
|
} else if(optno == PRIVILEGED && !value) {
|
|
/* unsetting PRIVILEGED causes the shell to make itself unprivileged */
|
|
#ifdef HAVE_SETUID
|
|
setuid(getuid());
|
|
setgid(getgid());
|
|
#endif /* HAVE_SETUID */
|
|
#ifndef JOB_CONTROL
|
|
} else if(optno == MONITOR && value) {
|
|
return -1;
|
|
#endif /* not JOB_CONTROL */
|
|
#ifdef GETPWNAM_FAKED
|
|
} else if(optno == CDABLEVARS && value) {
|
|
return -1;
|
|
#endif /* GETPWNAM_FAKED */
|
|
}
|
|
opts[optno] = value;
|
|
if (optno == BANGHIST || optno == SHINSTDIN)
|
|
inittyptab();
|
|
return 0;
|
|
}
|
|
|
|
/* Function to get value for special parameter `-' */
|
|
|
|
/**/
|
|
char *
|
|
dashgetfn(Param pm)
|
|
{
|
|
static char buf[LAST_OPT - FIRST_OPT + 2];
|
|
char *val = buf;
|
|
int i;
|
|
|
|
for(i = 0; i <= LAST_OPT - FIRST_OPT; i++) {
|
|
int optno = optletters[i];
|
|
if(optno && ((optno > 0) ? isset(optno) : unset(-optno)))
|
|
*val++ = FIRST_OPT + i;
|
|
}
|
|
*val = '\0';
|
|
return buf;
|
|
}
|
|
|
|
/* Print option list for --help */
|
|
|
|
/**/
|
|
void
|
|
printoptionlist(void)
|
|
{
|
|
short *lp;
|
|
char c;
|
|
|
|
printf("\nNamed options:\n");
|
|
scanhashtable(optiontab, 1, 0, OPT_ALIAS, printoptionlist_printoption, 0);
|
|
printf("\nOption aliases:\n");
|
|
scanhashtable(optiontab, 1, OPT_ALIAS, 0, printoptionlist_printoption, 0);
|
|
printf("\nOption letters:\n");
|
|
for(lp = optletters, c = FIRST_OPT; c <= LAST_OPT; lp++, c++) {
|
|
if(!*lp)
|
|
continue;
|
|
printf(" -%c ", c);
|
|
printoptionlist_printequiv(*lp);
|
|
}
|
|
}
|
|
|
|
/**/
|
|
static void
|
|
printoptionlist_printoption(HashNode hn, int ignored)
|
|
{
|
|
Optname on = (Optname) hn;
|
|
|
|
if(on->flags & OPT_ALIAS) {
|
|
printf(" --%-19s ", on->nam);
|
|
printoptionlist_printequiv(on->optno);
|
|
} else
|
|
printf(" --%s\n", on->nam);
|
|
}
|
|
|
|
/**/
|
|
static void
|
|
printoptionlist_printequiv(int optno)
|
|
{
|
|
int isneg = optno < 0;
|
|
|
|
optno *= (isneg ? -1 : 1);
|
|
printf(" equivalent to --%s%s\n", isneg ? "no-" : "", optns[optno-1].nam);
|
|
}
|