| The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | /* $NetBSD: options.h,v 1.17 2003/08/07 09:05:36 agc Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1991, 1993 |
| 5 | * The Regents of the University of California. All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to Berkeley by |
| 8 | * Kenneth Almquist. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * 3. Neither the name of the University nor the names of its contributors |
| 19 | * may be used to endorse or promote products derived from this software |
| 20 | * without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 32 | * SUCH DAMAGE. |
| 33 | * |
| 34 | * @(#)options.h 8.2 (Berkeley) 5/4/95 |
| 35 | */ |
| 36 | |
| 37 | struct shparam { |
| 38 | int nparam; /* # of positional parameters (without $0) */ |
| 39 | unsigned char malloc; /* if parameter list dynamically allocated */ |
| 40 | unsigned char reset; /* if getopts has been reset */ |
| 41 | char **p; /* parameter list */ |
| 42 | char **optnext; /* next parameter to be processed by getopts */ |
| 43 | char *optptr; /* used by getopts */ |
| 44 | }; |
| 45 | |
| 46 | |
| 47 | struct optent { |
| 48 | const char *name; /* for set -o <name> */ |
| 49 | const char letter; /* set [+/-]<letter> and $- */ |
| 50 | const char opt_set; /* mutually exclusive option set */ |
| 51 | char val; /* value of <letter>flag */ |
| 52 | }; |
| 53 | |
| 54 | /* Those marked [U] are required by posix, but have no effect! */ |
| 55 | |
| 56 | #ifdef DEFINE_OPTIONS |
| 57 | #define DEF_OPTS(name, letter, opt_set) {name, letter, opt_set, 0}, |
| 58 | struct optent optlist[] = { |
| 59 | #else |
| 60 | #define DEF_OPTS(name, letter, opt_set) |
| 61 | #endif |
| 62 | #define DEF_OPT(name,letter) DEF_OPTS(name, letter, 0) |
| 63 | |
| 64 | DEF_OPT( "errexit", 'e' ) /* exit on error */ |
| 65 | #define eflag optlist[0].val |
| 66 | DEF_OPT( "noglob", 'f' ) /* no pathname expansion */ |
| 67 | #define fflag optlist[1].val |
| 68 | DEF_OPT( "ignoreeof", 'I' ) /* do not exit on EOF */ |
| 69 | #define Iflag optlist[2].val |
| 70 | DEF_OPT( "interactive",'i' ) /* interactive shell */ |
| 71 | #define iflag optlist[3].val |
| 72 | DEF_OPT( "monitor", 'm' ) /* job control */ |
| 73 | #define mflag optlist[4].val |
| 74 | DEF_OPT( "noexec", 'n' ) /* [U] do not exec commands */ |
| 75 | #define nflag optlist[5].val |
| 76 | DEF_OPT( "stdin", 's' ) /* read from stdin */ |
| 77 | #define sflag optlist[6].val |
| 78 | DEF_OPT( "xtrace", 'x' ) /* trace after expansion */ |
| 79 | #define xflag optlist[7].val |
| 80 | DEF_OPT( "verbose", 'v' ) /* trace read input */ |
| 81 | #define vflag optlist[8].val |
| 82 | DEF_OPTS( "vi", 'V', 'V' ) /* vi style editing */ |
| 83 | #define Vflag optlist[9].val |
| 84 | DEF_OPTS( "emacs", 'E', 'V' ) /* emacs style editing */ |
| 85 | #define Eflag optlist[10].val |
| 86 | DEF_OPT( "noclobber", 'C' ) /* do not overwrite files with > */ |
| 87 | #define Cflag optlist[11].val |
| 88 | DEF_OPT( "allexport", 'a' ) /* export all variables */ |
| 89 | #define aflag optlist[12].val |
| 90 | DEF_OPT( "notify", 'b' ) /* [U] report completion of background jobs */ |
| 91 | #define bflag optlist[13].val |
| 92 | DEF_OPT( "nounset", 'u' ) /* error expansion of unset variables */ |
| 93 | #define uflag optlist[14].val |
| 94 | DEF_OPT( "quietprofile", 'q' ) |
| 95 | #define qflag optlist[15].val |
| 96 | DEF_OPT( "nolog", 0 ) /* [U] no functon defs in command history */ |
| 97 | #define nolog optlist[16].val |
| 98 | DEF_OPT( "cdprint", 0 ) /* always print result of cd */ |
| 99 | #define cdprint optlist[17].val |
| 100 | #ifdef DEBUG |
| 101 | DEF_OPT( "debug", 0 ) /* enable debug prints */ |
| 102 | #define debug optlist[18].val |
| 103 | #endif |
| 104 | |
| 105 | #ifdef DEFINE_OPTIONS |
| 106 | { 0, 0, 0, 0 }, |
| 107 | }; |
| 108 | #define NOPTS (sizeof optlist / sizeof optlist[0] - 1) |
| 109 | int sizeof_optlist = sizeof optlist; |
| 110 | #else |
| 111 | extern struct optent optlist[]; |
| 112 | extern int sizeof_optlist; |
| 113 | #endif |
| 114 | |
| 115 | |
| 116 | extern char *minusc; /* argument to -c option */ |
| 117 | extern char *arg0; /* $0 */ |
| 118 | extern struct shparam shellparam; /* $@ */ |
| 119 | extern char **argptr; /* argument list for builtin commands */ |
| 120 | extern char *optionarg; /* set by nextopt */ |
| 121 | extern char *optptr; /* used by nextopt */ |
| 122 | |
| 123 | void procargs(int, char **); |
| 124 | void optschanged(void); |
| 125 | void setparam(char **); |
| 126 | void freeparam(volatile struct shparam *); |
| 127 | int shiftcmd(int, char **); |
| 128 | int setcmd(int, char **); |
| 129 | int getoptscmd(int, char **); |
| 130 | int nextopt(const char *); |
| 131 | void getoptsreset(const char *); |