| 1 | /* Reentrant version of getopt.
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| 2 |
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| 3 | Based on ../getopt*.*:
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| 4 |
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| 5 | Getopt for GNU.
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| 6 | NOTE: getopt is now part of the C library, so if you don't know what
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| 7 | "Keep this file name-space clean" means, talk to drepper@gnu.org
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| 8 | before changing it!
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| 9 |
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| 10 | Copyright (C) 1987-2016 Free Software Foundation, Inc.
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| 11 |
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| 12 | NOTE: The canonical source of this file is maintained with the GNU C Library.
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| 13 | Bugs can be reported to bug-glibc@gnu.org.
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| 14 |
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| 15 | GNU Make is free software; you can redistribute it and/or modify it under the
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| 16 | terms of the GNU General Public License as published by the Free Software
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| 17 | Foundation; either version 3 of the License, or (at your option) any later
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| 18 | version.
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| 19 |
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| 20 | GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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| 21 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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| 22 | A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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| 23 |
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| 24 | You should have received a copy of the GNU General Public License along with
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| 25 | this program. If not, see <http://www.gnu.org/licenses/>.
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| 26 |
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| 27 | Modifications:
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| 28 | Copyright (c) 2018 knut st. osmundsen <bird-kBuild-spamx@anduin.net>
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| 29 | */
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| 30 |
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| 31 | /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
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| 32 | Ditto for AIX 3.2 and <stdlib.h>. */
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| 33 | #ifndef _NO_PROTO
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| 34 | # define _NO_PROTO
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| 35 | #endif
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| 36 |
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| 37 | #define FAKES_NO_GETOPT_H /* bird */
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| 38 | #ifdef HAVE_CONFIG_H
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| 39 | # include <config.h>
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| 40 | #endif
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| 41 |
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| 42 | #if !defined __STDC__ || !__STDC__
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| 43 | /* This is a separate conditional since some stdc systems
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| 44 | reject `defined (const)'. */
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| 45 | # ifndef const
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| 46 | # define const
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| 47 | # endif
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| 48 | #endif
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| 49 |
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| 50 | #include <stdio.h>
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| 51 |
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| 52 | #if 0
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| 53 | /* Comment out all this code if we are using the GNU C Library, and are not
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| 54 | actually compiling the library itself. This code is part of the GNU C
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| 55 | Library, but also included in many other GNU distributions. Compiling
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| 56 | and linking in this code is a waste when using the GNU C library
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| 57 | (especially if it is a shared library). Rather than having every GNU
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| 58 | program understand `configure --with-gnu-libc' and omit the object files,
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| 59 | it is simpler to just do this in the source for each such file. */
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| 60 |
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| 61 | #define GETOPT_INTERFACE_VERSION 2
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| 62 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
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| 63 | # include <gnu-versions.h>
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| 64 | # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
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| 65 | # define ELIDE_CODE
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| 66 | # endif
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| 67 | #endif
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| 68 | #endif
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| 69 |
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| 70 | #if 1 //ndef ELIDE_CODE
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| 71 |
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| 72 |
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| 73 | /* This needs to come after some library #include
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| 74 | to get __GNU_LIBRARY__ defined. */
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| 75 | #ifdef __GNU_LIBRARY__
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| 76 | /* Don't include stdlib.h for non-GNU C libraries because some of them
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| 77 | contain conflicting prototypes for getopt. */
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| 78 | # include <stdlib.h>
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| 79 | # include <unistd.h>
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| 80 | #endif /* GNU C library. */
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| 81 |
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| 82 | #ifdef VMS
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| 83 | # include <unixlib.h>
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| 84 | # if HAVE_STRING_H - 0
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| 85 | # include <string.h>
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| 86 | # endif
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| 87 | #endif
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| 88 |
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| 89 | /* This is for other GNU distributions with internationalized messages.
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| 90 | When compiling libc, the _ macro is predefined. */
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| 91 | #include "gettext.h"
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| 92 | #define _(msgid) gettext (msgid)
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| 93 |
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| 94 |
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| 95 | /* This version of `getopt' appears to the caller like standard Unix 'getopt'
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| 96 | but it behaves differently for the user, since it allows the user
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| 97 | to intersperse the options with the other arguments.
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| 98 |
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| 99 | As `getopt' works, it permutes the elements of ARGV so that,
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| 100 | when it is done, all the options precede everything else. Thus
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| 101 | all application programs are extended to handle flexible argument order.
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| 102 |
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| 103 | Setting the environment variable POSIXLY_CORRECT disables permutation.
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| 104 | Then the behavior is completely standard.
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| 105 |
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| 106 | GNU application programs can use a third alternative mode in which
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| 107 | they can distinguish the relative order of options and other arguments. */
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| 108 |
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| 109 | #include "getopt_r.h"
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| 110 | #include "err.h"
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| 111 | #include <assert.h>
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| 112 |
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| 113 | #if 0 /* Moved to state_getopt_r in getopt_r.h. */
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| 114 | /* For communication from `getopt' to the caller.
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| 115 | When `getopt' finds an option that takes an argument,
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| 116 | the argument value is returned here.
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| 117 | Also, when `ordering' is RETURN_IN_ORDER,
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| 118 | each non-option ARGV-element is returned here. */
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| 119 |
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| 120 | char *optarg = NULL;
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| 121 |
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| 122 | /* Index in ARGV of the next element to be scanned.
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| 123 | This is used for communication to and from the caller
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| 124 | and for communication between successive calls to `getopt'.
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| 125 |
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| 126 | On entry to `getopt', zero means this is the first call; initialize.
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| 127 |
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| 128 | When `getopt' returns -1, this is the index of the first of the
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| 129 | non-option elements that the caller should itself scan.
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| 130 |
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| 131 | Otherwise, `optind' communicates from one call to the next
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| 132 | how much of ARGV has been scanned so far. */
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| 133 |
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| 134 | /* 1003.2 says this must be 1 before any call. */
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| 135 | int optind = 1;
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| 136 |
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| 137 | /* Formerly, initialization of getopt depended on optind==0, which
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| 138 | causes problems with re-calling getopt as programs generally don't
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| 139 | know that. */
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| 140 |
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| 141 | int __getopt_initialized = 0;
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| 142 |
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| 143 | /* The next char to be scanned in the option-element
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| 144 | in which the last option character we returned was found.
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| 145 | This allows us to pick up the scan where we left off.
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| 146 |
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| 147 | If this is zero, or a null string, it means resume the scan
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| 148 | by advancing to the next ARGV-element. */
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| 149 |
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| 150 | static char *nextchar;
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| 151 |
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| 152 | /* Callers store zero here to inhibit the error message
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| 153 | for unrecognized options. */
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| 154 |
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| 155 | int opterr = 1;
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| 156 |
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| 157 | /* Set to an option character which was unrecognized.
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| 158 | This must be initialized on some systems to avoid linking in the
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| 159 | system's own getopt implementation. */
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| 160 |
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| 161 | int optopt = '?';
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| 162 | #endif /* Moved to state_getopt_r in getopt_r.h. */
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| 163 |
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| 164 | /* Describe how to deal with options that follow non-option ARGV-elements.
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| 165 |
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| 166 | If the caller did not specify anything,
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| 167 | the default is REQUIRE_ORDER if the environment variable
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| 168 | POSIXLY_CORRECT is defined, PERMUTE otherwise.
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| 169 |
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| 170 | REQUIRE_ORDER means don't recognize them as options;
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| 171 | stop option processing when the first non-option is seen.
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| 172 | This is what Unix does.
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| 173 | This mode of operation is selected by either setting the environment
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| 174 | variable POSIXLY_CORRECT, or using `+' as the first character
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| 175 | of the list of option characters.
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| 176 |
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| 177 | PERMUTE is the default. We permute the contents of ARGV as we scan,
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| 178 | so that eventually all the non-options are at the end. This allows options
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| 179 | to be given in any order, even with programs that were not written to
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| 180 | expect this.
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| 181 |
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| 182 | RETURN_IN_ORDER is an option available to programs that were written
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| 183 | to expect options and other ARGV-elements in any order and that care about
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| 184 | the ordering of the two. We describe each non-option ARGV-element
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| 185 | as if it were the argument of an option with character code 1.
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| 186 | Using `-' as the first character of the list of option characters
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| 187 | selects this mode of operation.
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| 188 |
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| 189 | The special argument `--' forces an end of option-scanning regardless
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| 190 | of the value of `ordering'. In the case of RETURN_IN_ORDER, only
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| 191 | `--' can cause `getopt' to return -1 with `optind' != ARGC. */
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| 192 |
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| 193 | /*static*/ enum
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| 194 | {
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| 195 | REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
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| 196 | } /*ordering*/;
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| 197 |
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| 198 | #if 0 /* Moved to state_getopt_r in getopt_r.h. */
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| 199 | /* Value of POSIXLY_CORRECT environment variable. */
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| 200 | static char *posixly_correct;
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| 201 | #endif
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| 202 |
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| 203 | |
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| 204 |
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| 205 | #if 1 //def __GNU_LIBRARY__
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| 206 | /* We want to avoid inclusion of string.h with non-GNU libraries
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| 207 | because there are many ways it can cause trouble.
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| 208 | On some systems, it contains special magic macros that don't work
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| 209 | in GCC. */
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| 210 | # include <string.h>
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| 211 | //# define my_index strchr
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| 212 | #else
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| 213 |
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| 214 | # if HAVE_STRING_H
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| 215 | # include <string.h>
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| 216 | # else
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| 217 | # include <strings.h>
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| 218 | # endif
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| 219 |
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| 220 | #if 0 //def
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| 221 | /* Avoid depending on library functions or files
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| 222 | whose names are inconsistent. */
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| 223 | #ifndef getenv
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| 224 | extern char *getenv ();
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| 225 | #endif
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| 226 | #endif
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| 227 |
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| 228 | static char *
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| 229 | my_index (const char *str, int chr)
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| 230 | {
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| 231 | while (*str)
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| 232 | {
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| 233 | if (*str == chr)
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| 234 | return (char *) str;
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| 235 | str++;
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| 236 | }
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| 237 | return 0;
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| 238 | }
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| 239 |
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| 240 | /* If using GCC, we can safely declare strlen this way.
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| 241 | If not using GCC, it is ok not to declare it. */
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| 242 | #ifdef __GNUC__
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| 243 | /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
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| 244 | That was relevant to code that was here before. */
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| 245 | # if (!defined __STDC__ || !__STDC__) && !defined strlen
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| 246 | /* gcc with -traditional declares the built-in strlen to return int,
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| 247 | and has done so at least since version 2.4.5. -- rms. */
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| 248 | extern int strlen (const char *);
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| 249 | # endif /* not __STDC__ */
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| 250 | #endif /* __GNUC__ */
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| 251 |
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| 252 | #endif /* not __GNU_LIBRARY__ */
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| 253 | |
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| 254 |
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| 255 | /* Handle permutation of arguments. */
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| 256 |
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| 257 | #if 0 /* Moved to state_getopt_r in getopt_r.h. */
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| 258 | /* Describe the part of ARGV that contains non-options that have
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| 259 | been skipped. `first_nonopt' is the index in ARGV of the first of them;
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| 260 | `last_nonopt' is the index after the last of them. */
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| 261 |
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| 262 | static int first_nonopt;
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| 263 | static int last_nonopt;
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| 264 | #endif
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| 265 |
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| 266 | #if 0 //def _LIBC
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| 267 | /* Bash 2.0 gives us an environment variable containing flags
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| 268 | indicating ARGV elements that should not be considered arguments. */
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| 269 |
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| 270 | /* Defined in getopt_init.c */
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| 271 | extern char *__getopt_nonoption_flags;
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| 272 |
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| 273 | static int nonoption_flags_max_len;
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| 274 | static int nonoption_flags_len;
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| 275 |
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| 276 | static int original_argc;
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| 277 | static char *const *original_argv;
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| 278 |
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| 279 | /* Make sure the environment variable bash 2.0 puts in the environment
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| 280 | is valid for the getopt call we must make sure that the ARGV passed
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| 281 | to getopt is that one passed to the process. */
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| 282 | static void __attribute__ ((unused))
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| 283 | store_args_and_env (int argc, char *const *argv)
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| 284 | {
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| 285 | /* XXX This is no good solution. We should rather copy the args so
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| 286 | that we can compare them later. But we must not use malloc(3). */
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| 287 | original_argc = argc;
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| 288 | original_argv = argv;
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| 289 | }
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| 290 | # ifdef text_set_element
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| 291 | text_set_element (__libc_subinit, store_args_and_env);
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| 292 | # endif /* text_set_element */
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| 293 |
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| 294 | # define SWAP_FLAGS(ch1, ch2) \
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| 295 | if (nonoption_flags_len > 0) \
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| 296 | { \
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| 297 | char __tmp = __getopt_nonoption_flags[ch1]; \
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| 298 | __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
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| 299 | __getopt_nonoption_flags[ch2] = __tmp; \
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| 300 | }
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| 301 | #else /* !_LIBC */
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| 302 | # define SWAP_FLAGS(ch1, ch2) do { } while (0)
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| 303 | #endif /* _LIBC */
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| 304 |
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| 305 | /* Exchange two adjacent subsequences of ARGV.
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| 306 | One subsequence is elements [first_nonopt,last_nonopt)
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| 307 | which contains all the non-options that have been skipped so far.
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| 308 | The other is elements [last_nonopt,optind), which contains all
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| 309 | the options processed since those non-options were skipped.
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| 310 |
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| 311 | `first_nonopt' and `last_nonopt' are relocated so that they describe
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| 312 | the new indices of the non-options in ARGV after they are moved. */
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| 313 |
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| 314 | static void
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| 315 | exchange (struct getopt_state_r *gos, char **argv)
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| 316 | {
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| 317 | int bottom = gos->first_nonopt;
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| 318 | int middle = gos->last_nonopt;
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| 319 | int top = gos->optind;
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| 320 | char *tem;
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| 321 |
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| 322 | /* Exchange the shorter segment with the far end of the longer segment.
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| 323 | That puts the shorter segment into the right place.
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| 324 | It leaves the longer segment in the right place overall,
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| 325 | but it consists of two parts that need to be swapped next. */
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| 326 |
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| 327 | #if 0 //def _LIBC
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| 328 | /* First make sure the handling of the `__getopt_nonoption_flags'
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| 329 | string can work normally. Our top argument must be in the range
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| 330 | of the string. */
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| 331 | if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
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| 332 | {
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| 333 | /* We must extend the array. The user plays games with us and
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| 334 | presents new arguments. */
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| 335 | char *new_str = malloc (top + 1);
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| 336 | if (new_str == NULL)
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| 337 | nonoption_flags_len = nonoption_flags_max_len = 0;
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| 338 | else
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| 339 | {
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| 340 | memset (__mempcpy (new_str, __getopt_nonoption_flags,
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| 341 | nonoption_flags_max_len),
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| 342 | '\0', top + 1 - nonoption_flags_max_len);
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| 343 | nonoption_flags_max_len = top + 1;
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| 344 | __getopt_nonoption_flags = new_str;
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| 345 | }
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| 346 | }
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| 347 | #endif
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| 348 |
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| 349 | while (top > middle && middle > bottom)
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| 350 | {
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| 351 | if (top - middle > middle - bottom)
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| 352 | {
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| 353 | /* Bottom segment is the short one. */
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| 354 | int len = middle - bottom;
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| 355 | register int i;
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| 356 |
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| 357 | /* Swap it with the top part of the top segment. */
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| 358 | for (i = 0; i < len; i++)
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| 359 | {
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| 360 | tem = argv[bottom + i];
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| 361 | argv[bottom + i] = argv[top - (middle - bottom) + i];
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| 362 | argv[top - (middle - bottom) + i] = tem;
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| 363 | SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
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| 364 | }
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| 365 | /* Exclude the moved bottom segment from further swapping. */
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| 366 | top -= len;
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| 367 | }
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| 368 | else
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| 369 | {
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| 370 | /* Top segment is the short one. */
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| 371 | int len = top - middle;
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| 372 | register int i;
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| 373 |
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| 374 | /* Swap it with the bottom part of the bottom segment. */
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| 375 | for (i = 0; i < len; i++)
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| 376 | {
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| 377 | tem = argv[bottom + i];
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| 378 | argv[bottom + i] = argv[middle + i];
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| 379 | argv[middle + i] = tem;
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| 380 | SWAP_FLAGS (bottom + i, middle + i);
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| 381 | }
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| 382 | /* Exclude the moved top segment from further swapping. */
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| 383 | bottom += len;
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| 384 | }
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| 385 | }
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| 386 |
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| 387 | /* Update records for the slots the non-options now occupy. */
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| 388 |
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| 389 | gos->first_nonopt += (gos->optind - gos->last_nonopt);
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| 390 | gos->last_nonopt = gos->optind;
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| 391 | }
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| 392 |
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| 393 | /* Initialize the internal data */
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| 394 |
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| 395 | void
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| 396 | getopt_initialize_r (struct getopt_state_r *gos, int argc,
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| 397 | char * const *argv, const char *shortopts,
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| 398 | const struct option *long_options,
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| 399 | char **envp, struct KMKBUILTINCTX *pCtx)
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| 400 | {
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| 401 | assert (shortopts != NULL);
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| 402 |
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| 403 | /* General initialization. */
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| 404 | gos->optarg = NULL;
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| 405 | gos->optind = 1;
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| 406 | gos->__getopt_initialized = (void *)(uintptr_t)&exchange;
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| 407 | gos->opterr = 1;
|
|---|
| 408 | gos->optopt = '?';
|
|---|
| 409 | gos->argc = argc;
|
|---|
| 410 | gos->argv = argv;
|
|---|
| 411 | gos->optstring = shortopts;
|
|---|
| 412 | gos->len_optstring = strlen (shortopts);
|
|---|
| 413 | gos->long_options = long_options;
|
|---|
| 414 | gos->pCtx = pCtx;
|
|---|
| 415 |
|
|---|
| 416 | /* Start processing options with ARGV-element 1 (since ARGV-element 0
|
|---|
| 417 | is the program name); the sequence of previously skipped
|
|---|
| 418 | non-option ARGV-elements is empty. */
|
|---|
| 419 |
|
|---|
| 420 | gos->first_nonopt = gos->last_nonopt = gos->optind;
|
|---|
| 421 |
|
|---|
| 422 | gos->nextchar = NULL;
|
|---|
| 423 |
|
|---|
| 424 | if (!envp)
|
|---|
| 425 | gos->posixly_correct = getenv("POSIXLY_CORRECT");
|
|---|
| 426 | else
|
|---|
| 427 | {
|
|---|
| 428 | const char *psz;
|
|---|
| 429 | size_t i = 0;
|
|---|
| 430 | gos->posixly_correct = NULL;
|
|---|
| 431 | while ((psz = envp[i]) != NULL)
|
|---|
| 432 | {
|
|---|
| 433 | if ( psz[0] == 'P'
|
|---|
| 434 | && strncmp (psz, "POSIXLY_CORRECT=", sizeof("POSIXLY_CORRECT=") - 1) == 0)
|
|---|
| 435 | {
|
|---|
| 436 | gos->posixly_correct = psz + sizeof("POSIXLY_CORRECT=") - 1;
|
|---|
| 437 | break;
|
|---|
| 438 | }
|
|---|
| 439 | i++;
|
|---|
| 440 | }
|
|---|
| 441 | }
|
|---|
| 442 |
|
|---|
| 443 | /* Determine how to handle the ordering of options and nonoptions. */
|
|---|
| 444 |
|
|---|
| 445 | if (shortopts[0] == '-')
|
|---|
| 446 | {
|
|---|
| 447 | gos->ordering = RETURN_IN_ORDER;
|
|---|
| 448 | gos->optstring++;
|
|---|
| 449 | gos->len_optstring--;
|
|---|
| 450 | }
|
|---|
| 451 | else if (shortopts[0] == '+')
|
|---|
| 452 | {
|
|---|
| 453 | gos->ordering = REQUIRE_ORDER;
|
|---|
| 454 | gos->optstring++;
|
|---|
| 455 | gos->len_optstring--;
|
|---|
| 456 | }
|
|---|
| 457 | else if (gos->posixly_correct != NULL)
|
|---|
| 458 | gos->ordering = REQUIRE_ORDER;
|
|---|
| 459 | else
|
|---|
| 460 | gos->ordering = PERMUTE;
|
|---|
| 461 |
|
|---|
| 462 | #if 0 //def _LIBC
|
|---|
| 463 | if (posixly_correct == NULL
|
|---|
| 464 | && argc == original_argc && argv == original_argv)
|
|---|
| 465 | {
|
|---|
| 466 | if (nonoption_flags_max_len == 0)
|
|---|
| 467 | {
|
|---|
| 468 | if (__getopt_nonoption_flags == NULL
|
|---|
| 469 | || __getopt_nonoption_flags[0] == '\0')
|
|---|
| 470 | nonoption_flags_max_len = -1;
|
|---|
| 471 | else
|
|---|
| 472 | {
|
|---|
| 473 | const char *orig_str = __getopt_nonoption_flags;
|
|---|
| 474 | int len = nonoption_flags_max_len = strlen (orig_str);
|
|---|
| 475 | if (nonoption_flags_max_len < argc)
|
|---|
| 476 | nonoption_flags_max_len = argc;
|
|---|
| 477 | __getopt_nonoption_flags =
|
|---|
| 478 | (char *) malloc (nonoption_flags_max_len);
|
|---|
| 479 | if (__getopt_nonoption_flags == NULL)
|
|---|
| 480 | nonoption_flags_max_len = -1;
|
|---|
| 481 | else
|
|---|
| 482 | memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
|
|---|
| 483 | '\0', nonoption_flags_max_len - len);
|
|---|
| 484 | }
|
|---|
| 485 | }
|
|---|
| 486 | nonoption_flags_len = nonoption_flags_max_len;
|
|---|
| 487 | }
|
|---|
| 488 | else
|
|---|
| 489 | nonoption_flags_len = 0;
|
|---|
| 490 | #endif
|
|---|
| 491 |
|
|---|
| 492 | //return optstring;
|
|---|
| 493 | }
|
|---|
| 494 | |
|---|
| 495 |
|
|---|
| 496 | /* Scan elements of ARGV (whose length is ARGC) for option characters
|
|---|
| 497 | given in OPTSTRING.
|
|---|
| 498 |
|
|---|
| 499 | If an element of ARGV starts with '-', and is not exactly "-" or "--",
|
|---|
| 500 | then it is an option element. The characters of this element
|
|---|
| 501 | (aside from the initial '-') are option characters. If `getopt'
|
|---|
| 502 | is called repeatedly, it returns successively each of the option characters
|
|---|
| 503 | from each of the option elements.
|
|---|
| 504 |
|
|---|
| 505 | If `getopt' finds another option character, it returns that character,
|
|---|
| 506 | updating `optind' and `nextchar' so that the next call to `getopt' can
|
|---|
| 507 | resume the scan with the following option character or ARGV-element.
|
|---|
| 508 |
|
|---|
| 509 | If there are no more option characters, `getopt' returns -1.
|
|---|
| 510 | Then `optind' is the index in ARGV of the first ARGV-element
|
|---|
| 511 | that is not an option. (The ARGV-elements have been permuted
|
|---|
| 512 | so that those that are not options now come last.)
|
|---|
| 513 |
|
|---|
| 514 | OPTSTRING is a string containing the legitimate option characters.
|
|---|
| 515 | If an option character is seen that is not listed in OPTSTRING,
|
|---|
| 516 | return '?' after printing an error message. If you set `opterr' to
|
|---|
| 517 | zero, the error message is suppressed but we still return '?'.
|
|---|
| 518 |
|
|---|
| 519 | If a char in OPTSTRING is followed by a colon, that means it wants an arg,
|
|---|
| 520 | so the following text in the same ARGV-element, or the text of the following
|
|---|
| 521 | ARGV-element, is returned in `optarg'. Two colons mean an option that
|
|---|
| 522 | wants an optional arg; if there is text in the current ARGV-element,
|
|---|
| 523 | it is returned in `optarg', otherwise `optarg' is set to zero.
|
|---|
| 524 |
|
|---|
| 525 | If OPTSTRING starts with `-' or `+', it requests different methods of
|
|---|
| 526 | handling the non-option ARGV-elements.
|
|---|
| 527 | See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
|
|---|
| 528 |
|
|---|
| 529 | Long-named options begin with `--' instead of `-'.
|
|---|
| 530 | Their names may be abbreviated as long as the abbreviation is unique
|
|---|
| 531 | or is an exact match for some defined option. If they have an
|
|---|
| 532 | argument, it follows the option name in the same ARGV-element, separated
|
|---|
| 533 | from the option name by a `=', or else the in next ARGV-element.
|
|---|
| 534 | When `getopt' finds a long-named option, it returns 0 if that option's
|
|---|
| 535 | `flag' field is nonzero, the value of the option's `val' field
|
|---|
| 536 | if the `flag' field is zero.
|
|---|
| 537 |
|
|---|
| 538 | The elements of ARGV aren't really const, because we permute them.
|
|---|
| 539 | But we pretend they're const in the prototype to be compatible
|
|---|
| 540 | with other systems.
|
|---|
| 541 |
|
|---|
| 542 | LONGOPTS is a vector of `struct option' terminated by an
|
|---|
| 543 | element containing a name which is zero.
|
|---|
| 544 |
|
|---|
| 545 | LONGIND returns the index in LONGOPT of the long-named option found.
|
|---|
| 546 | It is only valid when a long-named option has been found by the most
|
|---|
| 547 | recent call.
|
|---|
| 548 |
|
|---|
| 549 | If LONG_ONLY is nonzero, '-' as well as '--' can introduce
|
|---|
| 550 | long-named options. */
|
|---|
| 551 |
|
|---|
| 552 | int
|
|---|
| 553 | _getopt_internal_r (struct getopt_state_r *gos, const struct option *longopts,
|
|---|
| 554 | int *longind, int long_only)
|
|---|
| 555 | {
|
|---|
| 556 | assert (gos->__getopt_initialized == (void *)(uintptr_t)&exchange);
|
|---|
| 557 | gos->optarg = NULL;
|
|---|
| 558 |
|
|---|
| 559 | #if 0 /* requires explicit call now */
|
|---|
| 560 | if (gos->optind == 0 || !gos->__getopt_initialized)
|
|---|
| 561 | {
|
|---|
| 562 | if (gos->optind == 0)
|
|---|
| 563 | gos->optind = 1; /* Don't scan ARGV[0], the program name. */
|
|---|
| 564 | optstring = _getopt_initialize_r (gos, gos->argc, gos->argv, optstring);
|
|---|
| 565 | gos->__getopt_initialized = 1;
|
|---|
| 566 | }
|
|---|
| 567 | #else
|
|---|
| 568 | assert (gos->__getopt_initialized == (void *)(uintptr_t)&exchange);
|
|---|
| 569 | #endif
|
|---|
| 570 |
|
|---|
| 571 | /* Test whether ARGV[optind] points to a non-option argument.
|
|---|
| 572 | Either it does not have option syntax, or there is an environment flag
|
|---|
| 573 | from the shell indicating it is not an option. The later information
|
|---|
| 574 | is only used when the used in the GNU libc. */
|
|---|
| 575 | #if 0 //def _LIBC
|
|---|
| 576 | # define NONOPTION_P (gos->argv[gos->optind][0] != '-' || gos->argv[gos->optind][1] == '\0' \
|
|---|
| 577 | || (gos->optind < gos->nonoption_flags_len \
|
|---|
| 578 | && gos->__getopt_nonoption_flags[gos->optind] == '1'))
|
|---|
| 579 | #else
|
|---|
| 580 | # define NONOPTION_P (gos->argv[gos->optind][0] != '-' || gos->argv[gos->optind][1] == '\0')
|
|---|
| 581 | #endif
|
|---|
| 582 |
|
|---|
| 583 | if (gos->nextchar == NULL || *gos->nextchar == '\0')
|
|---|
| 584 | {
|
|---|
| 585 | /* Advance to the next ARGV-element. */
|
|---|
| 586 |
|
|---|
| 587 | /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
|
|---|
| 588 | moved back by the user (who may also have changed the arguments). */
|
|---|
| 589 | if (gos->last_nonopt > gos->optind)
|
|---|
| 590 | gos->last_nonopt = gos->optind;
|
|---|
| 591 | if (gos->first_nonopt > gos->optind)
|
|---|
| 592 | gos->first_nonopt = gos->optind;
|
|---|
| 593 |
|
|---|
| 594 | if (gos->ordering == PERMUTE)
|
|---|
| 595 | {
|
|---|
| 596 | /* If we have just processed some options following some non-options,
|
|---|
| 597 | exchange them so that the options come first. */
|
|---|
| 598 |
|
|---|
| 599 | if (gos->first_nonopt != gos->last_nonopt && gos->last_nonopt != gos->optind)
|
|---|
| 600 | exchange (gos, (char **) gos->argv);
|
|---|
| 601 | else if (gos->last_nonopt != gos->optind)
|
|---|
| 602 | gos->first_nonopt = gos->optind;
|
|---|
| 603 |
|
|---|
| 604 | /* Skip any additional non-options
|
|---|
| 605 | and extend the range of non-options previously skipped. */
|
|---|
| 606 |
|
|---|
| 607 | while (gos->optind < gos->argc && NONOPTION_P)
|
|---|
| 608 | gos->optind++;
|
|---|
| 609 | gos->last_nonopt = gos->optind;
|
|---|
| 610 | }
|
|---|
| 611 |
|
|---|
| 612 | /* The special ARGV-element `--' means premature end of options.
|
|---|
| 613 | Skip it like a null option,
|
|---|
| 614 | then exchange with previous non-options as if it were an option,
|
|---|
| 615 | then skip everything else like a non-option. */
|
|---|
| 616 |
|
|---|
| 617 | if (gos->optind != gos->argc && !strcmp (gos->argv[gos->optind], "--"))
|
|---|
| 618 | {
|
|---|
| 619 | gos->optind++;
|
|---|
| 620 |
|
|---|
| 621 | if (gos->first_nonopt != gos->last_nonopt && gos->last_nonopt != gos->optind)
|
|---|
| 622 | exchange (gos, (char **) gos->argv);
|
|---|
| 623 | else if (gos->first_nonopt == gos->last_nonopt)
|
|---|
| 624 | gos->first_nonopt = gos->optind;
|
|---|
| 625 | gos->last_nonopt = gos->argc;
|
|---|
| 626 |
|
|---|
| 627 | gos->optind = gos->argc;
|
|---|
| 628 | }
|
|---|
| 629 |
|
|---|
| 630 | /* If we have done all the ARGV-elements, stop the scan
|
|---|
| 631 | and back over any non-options that we skipped and permuted. */
|
|---|
| 632 |
|
|---|
| 633 | if (gos->optind == gos->argc)
|
|---|
| 634 | {
|
|---|
| 635 | /* Set the next-arg-index to point at the non-options
|
|---|
| 636 | that we previously skipped, so the caller will digest them. */
|
|---|
| 637 | if (gos->first_nonopt != gos->last_nonopt)
|
|---|
| 638 | gos->optind = gos->first_nonopt;
|
|---|
| 639 | return -1;
|
|---|
| 640 | }
|
|---|
| 641 |
|
|---|
| 642 | /* If we have come to a non-option and did not permute it,
|
|---|
| 643 | either stop the scan or describe it to the caller and pass it by. */
|
|---|
| 644 |
|
|---|
| 645 | if (NONOPTION_P)
|
|---|
| 646 | {
|
|---|
| 647 | if (gos->ordering == REQUIRE_ORDER)
|
|---|
| 648 | return -1;
|
|---|
| 649 | gos->optarg = gos->argv[gos->optind++];
|
|---|
| 650 | return 1;
|
|---|
| 651 | }
|
|---|
| 652 |
|
|---|
| 653 | /* We have found another option-ARGV-element.
|
|---|
| 654 | Skip the initial punctuation. */
|
|---|
| 655 |
|
|---|
| 656 | gos->nextchar = (gos->argv[gos->optind] + 1
|
|---|
| 657 | + (longopts != NULL && gos->argv[gos->optind][1] == '-'));
|
|---|
| 658 | }
|
|---|
| 659 |
|
|---|
| 660 | /* Decode the current option-ARGV-element. */
|
|---|
| 661 |
|
|---|
| 662 | /* Check whether the ARGV-element is a long option.
|
|---|
| 663 |
|
|---|
| 664 | If long_only and the ARGV-element has the form "-f", where f is
|
|---|
| 665 | a valid short option, don't consider it an abbreviated form of
|
|---|
| 666 | a long option that starts with f. Otherwise there would be no
|
|---|
| 667 | way to give the -f short option.
|
|---|
| 668 |
|
|---|
| 669 | On the other hand, if there's a long option "fubar" and
|
|---|
| 670 | the ARGV-element is "-fu", do consider that an abbreviation of
|
|---|
| 671 | the long option, just like "--fu", and not "-f" with arg "u".
|
|---|
| 672 |
|
|---|
| 673 | This distinction seems to be the most useful approach. */
|
|---|
| 674 |
|
|---|
| 675 | if (longopts != NULL
|
|---|
| 676 | && (gos->argv[gos->optind][1] == '-'
|
|---|
| 677 | || (long_only
|
|---|
| 678 | && ( gos->argv[gos->optind][2]
|
|---|
| 679 | || !memchr (gos->optstring, gos->argv[gos->optind][1], gos->len_optstring) )
|
|---|
| 680 | )
|
|---|
| 681 | )
|
|---|
| 682 | )
|
|---|
| 683 | {
|
|---|
| 684 | char *nameend;
|
|---|
| 685 | const struct option *p;
|
|---|
| 686 | const struct option *pfound = NULL;
|
|---|
| 687 | int exact = 0;
|
|---|
| 688 | int ambig = 0;
|
|---|
| 689 | int indfound = -1;
|
|---|
| 690 | int option_index;
|
|---|
| 691 |
|
|---|
| 692 | for (nameend = gos->nextchar; *nameend && *nameend != '='; nameend++)
|
|---|
| 693 | /* Do nothing. */ ;
|
|---|
| 694 |
|
|---|
| 695 | /* Test all long options for either exact match
|
|---|
| 696 | or abbreviated matches. */
|
|---|
| 697 | for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
|---|
| 698 | if (!strncmp (p->name, gos->nextchar, nameend - gos->nextchar))
|
|---|
| 699 | {
|
|---|
| 700 | if ((unsigned int) (nameend - gos->nextchar)
|
|---|
| 701 | == (unsigned int) strlen (p->name))
|
|---|
| 702 | {
|
|---|
| 703 | /* Exact match found. */
|
|---|
| 704 | pfound = p;
|
|---|
| 705 | indfound = option_index;
|
|---|
| 706 | exact = 1;
|
|---|
| 707 | break;
|
|---|
| 708 | }
|
|---|
| 709 | else if (pfound == NULL)
|
|---|
| 710 | {
|
|---|
| 711 | /* First nonexact match found. */
|
|---|
| 712 | pfound = p;
|
|---|
| 713 | indfound = option_index;
|
|---|
| 714 | }
|
|---|
| 715 | else
|
|---|
| 716 | /* Second or later nonexact match found. */
|
|---|
| 717 | ambig = 1;
|
|---|
| 718 | }
|
|---|
| 719 |
|
|---|
| 720 | if (ambig && !exact)
|
|---|
| 721 | {
|
|---|
| 722 | if (gos->opterr)
|
|---|
| 723 | errx (gos->pCtx, 2, _("%s: option '%s' is ambiguous"),
|
|---|
| 724 | gos->argv[0], gos->argv[gos->optind]);
|
|---|
| 725 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 726 | gos->optind++;
|
|---|
| 727 | gos->optopt = 0;
|
|---|
| 728 | return '?';
|
|---|
| 729 | }
|
|---|
| 730 |
|
|---|
| 731 | if (pfound != NULL)
|
|---|
| 732 | {
|
|---|
| 733 | option_index = indfound;
|
|---|
| 734 | gos->optind++;
|
|---|
| 735 | if (*nameend)
|
|---|
| 736 | {
|
|---|
| 737 | /* Don't test has_arg with >, because some C compilers don't
|
|---|
| 738 | allow it to be used on enums. */
|
|---|
| 739 | if (pfound->has_arg)
|
|---|
| 740 | gos->optarg = nameend + 1;
|
|---|
| 741 | else
|
|---|
| 742 | {
|
|---|
| 743 | if (gos->opterr)
|
|---|
| 744 | { /* bird: disambiguate */
|
|---|
| 745 | if (gos->argv[gos->optind - 1][1] == '-')
|
|---|
| 746 | /* --option */
|
|---|
| 747 | errx (gos->pCtx, 2,
|
|---|
| 748 | _("%s: option '--%s' doesn't allow an argument\n"),
|
|---|
| 749 | gos->argv[0], pfound->name);
|
|---|
| 750 | else
|
|---|
| 751 | /* +option or -option */
|
|---|
| 752 | errx (gos->pCtx, 2,
|
|---|
| 753 | _("%s: option '%c%s' doesn't allow an argument\n"),
|
|---|
| 754 | gos->argv[0], gos->argv[gos->optind - 1][0], pfound->name);
|
|---|
| 755 | }
|
|---|
| 756 |
|
|---|
| 757 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 758 |
|
|---|
| 759 | gos->optopt = pfound->val;
|
|---|
| 760 | return '?';
|
|---|
| 761 | }
|
|---|
| 762 | }
|
|---|
| 763 | else if (pfound->has_arg == 1)
|
|---|
| 764 | {
|
|---|
| 765 | if (gos->optind < gos->argc)
|
|---|
| 766 | gos->optarg = gos->argv[gos->optind++];
|
|---|
| 767 | else
|
|---|
| 768 | {
|
|---|
| 769 | if (gos->opterr)
|
|---|
| 770 | errx (gos->pCtx, 2,
|
|---|
| 771 | _("%s: option '%s' requires an argument\n"),
|
|---|
| 772 | gos->argv[0], gos->argv[gos->optind - 1]);
|
|---|
| 773 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 774 | gos->optopt = pfound->val;
|
|---|
| 775 | return gos->optstring[0] == ':' ? ':' : '?';
|
|---|
| 776 | }
|
|---|
| 777 | }
|
|---|
| 778 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 779 | if (longind != NULL)
|
|---|
| 780 | *longind = option_index;
|
|---|
| 781 | if (pfound->flag)
|
|---|
| 782 | {
|
|---|
| 783 | *(pfound->flag) = pfound->val;
|
|---|
| 784 | return 0;
|
|---|
| 785 | }
|
|---|
| 786 | return pfound->val;
|
|---|
| 787 | }
|
|---|
| 788 |
|
|---|
| 789 | /* Can't find it as a long option. If this is not getopt_long_only,
|
|---|
| 790 | or the option starts with '--' or is not a valid short
|
|---|
| 791 | option, then it's an error.
|
|---|
| 792 | Otherwise interpret it as a short option. */
|
|---|
| 793 | if (!long_only || gos->argv[gos->optind][1] == '-'
|
|---|
| 794 | || memchr(gos->optstring, *gos->nextchar, gos->len_optstring) == NULL)
|
|---|
| 795 | {
|
|---|
| 796 | if (gos->opterr)
|
|---|
| 797 | {
|
|---|
| 798 | if (gos->argv[gos->optind][1] == '-')
|
|---|
| 799 | /* --option */
|
|---|
| 800 | errx (gos->pCtx, 2, _("%s: unrecognized option '--%s'\n"),
|
|---|
| 801 | gos->argv[0], gos->nextchar);
|
|---|
| 802 | else
|
|---|
| 803 | /* +option or -option */
|
|---|
| 804 | errx (gos->pCtx, 2, _("%s: unrecognized option '%c%s'\n"),
|
|---|
| 805 | gos->argv[0], gos->argv[gos->optind][0], gos->nextchar);
|
|---|
| 806 | }
|
|---|
| 807 | gos->nextchar = (char *) "";
|
|---|
| 808 | gos->optind++;
|
|---|
| 809 | gos->optopt = 0;
|
|---|
| 810 | return '?';
|
|---|
| 811 | }
|
|---|
| 812 | }
|
|---|
| 813 |
|
|---|
| 814 | /* Look at and handle the next short option-character. */
|
|---|
| 815 |
|
|---|
| 816 | {
|
|---|
| 817 | char c = *gos->nextchar++;
|
|---|
| 818 | char *temp = (char *)memchr (gos->optstring, c, gos->len_optstring);
|
|---|
| 819 |
|
|---|
| 820 | /* Increment `optind' when we start to process its last character. */
|
|---|
| 821 | if (*gos->nextchar == '\0')
|
|---|
| 822 | ++gos->optind;
|
|---|
| 823 |
|
|---|
| 824 | if (temp == NULL || c == ':')
|
|---|
| 825 | {
|
|---|
| 826 | if (gos->opterr)
|
|---|
| 827 | {
|
|---|
| 828 | if (gos->posixly_correct)
|
|---|
| 829 | /* 1003.2 specifies the format of this message. */
|
|---|
| 830 | errx (gos->pCtx, 2, _("%s: illegal option -- %c\n"),
|
|---|
| 831 | gos->argv[0], c);
|
|---|
| 832 | else
|
|---|
| 833 | errx (gos->pCtx, 2, _("%s: invalid option -- %c\n"),
|
|---|
| 834 | gos->argv[0], c);
|
|---|
| 835 | }
|
|---|
| 836 | gos->optopt = c;
|
|---|
| 837 | return '?';
|
|---|
| 838 | }
|
|---|
| 839 | /* Convenience. Treat POSIX -W foo same as long option --foo */
|
|---|
| 840 | if (temp[0] == 'W' && temp[1] == ';')
|
|---|
| 841 | {
|
|---|
| 842 | char *nameend;
|
|---|
| 843 | const struct option *p;
|
|---|
| 844 | const struct option *pfound = NULL;
|
|---|
| 845 | int exact = 0;
|
|---|
| 846 | int ambig = 0;
|
|---|
| 847 | int indfound = 0;
|
|---|
| 848 | int option_index;
|
|---|
| 849 |
|
|---|
| 850 | /* This is an option that requires an argument. */
|
|---|
| 851 | if (*gos->nextchar != '\0')
|
|---|
| 852 | {
|
|---|
| 853 | gos->optarg = gos->nextchar;
|
|---|
| 854 | /* If we end this ARGV-element by taking the rest as an arg,
|
|---|
| 855 | we must advance to the next element now. */
|
|---|
| 856 | gos->optind++;
|
|---|
| 857 | }
|
|---|
| 858 | else if (gos->optind == gos->argc)
|
|---|
| 859 | {
|
|---|
| 860 | if (gos->opterr)
|
|---|
| 861 | {
|
|---|
| 862 | /* 1003.2 specifies the format of this message. */
|
|---|
| 863 | errx (gos->pCtx, 2, _("%s: option requires an argument -- %c\n"),
|
|---|
| 864 | gos->argv[0], c);
|
|---|
| 865 | }
|
|---|
| 866 | gos->optopt = c;
|
|---|
| 867 | if (gos->optstring[0] == ':')
|
|---|
| 868 | c = ':';
|
|---|
| 869 | else
|
|---|
| 870 | c = '?';
|
|---|
| 871 | return c;
|
|---|
| 872 | }
|
|---|
| 873 | else
|
|---|
| 874 | /* We already incremented `optind' once;
|
|---|
| 875 | increment it again when taking next ARGV-elt as argument. */
|
|---|
| 876 | gos->optarg = gos->argv[gos->optind++];
|
|---|
| 877 |
|
|---|
| 878 | /* optarg is now the argument, see if it's in the
|
|---|
| 879 | table of longopts. */
|
|---|
| 880 |
|
|---|
| 881 | for (gos->nextchar = nameend = gos->optarg; *nameend && *nameend != '='; nameend++)
|
|---|
| 882 | /* Do nothing. */ ;
|
|---|
| 883 |
|
|---|
| 884 | /* Test all long options for either exact match
|
|---|
| 885 | or abbreviated matches. */
|
|---|
| 886 | for (p = longopts, option_index = 0; p->name; p++, option_index++)
|
|---|
| 887 | if (!strncmp (p->name, gos->nextchar, nameend - gos->nextchar))
|
|---|
| 888 | {
|
|---|
| 889 | if ((unsigned int) (nameend - gos->nextchar) == strlen (p->name))
|
|---|
| 890 | {
|
|---|
| 891 | /* Exact match found. */
|
|---|
| 892 | pfound = p;
|
|---|
| 893 | indfound = option_index;
|
|---|
| 894 | exact = 1;
|
|---|
| 895 | break;
|
|---|
| 896 | }
|
|---|
| 897 | else if (pfound == NULL)
|
|---|
| 898 | {
|
|---|
| 899 | /* First nonexact match found. */
|
|---|
| 900 | pfound = p;
|
|---|
| 901 | indfound = option_index;
|
|---|
| 902 | }
|
|---|
| 903 | else
|
|---|
| 904 | /* Second or later nonexact match found. */
|
|---|
| 905 | ambig = 1;
|
|---|
| 906 | }
|
|---|
| 907 | if (ambig && !exact)
|
|---|
| 908 | {
|
|---|
| 909 | if (gos->opterr)
|
|---|
| 910 | errx (gos->pCtx, 2, _("%s: option '-W %s' is ambiguous\n"),
|
|---|
| 911 | gos->argv[0], gos->argv[gos->optind]);
|
|---|
| 912 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 913 | gos->optind++;
|
|---|
| 914 | return '?';
|
|---|
| 915 | }
|
|---|
| 916 | if (pfound != NULL)
|
|---|
| 917 | {
|
|---|
| 918 | option_index = indfound;
|
|---|
| 919 | if (*nameend)
|
|---|
| 920 | {
|
|---|
| 921 | /* Don't test has_arg with >, because some C compilers don't
|
|---|
| 922 | allow it to be used on enums. */
|
|---|
| 923 | if (pfound->has_arg)
|
|---|
| 924 | gos->optarg = nameend + 1;
|
|---|
| 925 | else
|
|---|
| 926 | {
|
|---|
| 927 | if (gos->opterr)
|
|---|
| 928 | errx (gos->pCtx, 2,
|
|---|
| 929 | _("%s: option '-W %s' doesn't allow an argument\n"),
|
|---|
| 930 | gos->argv[0], pfound->name);
|
|---|
| 931 |
|
|---|
| 932 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 933 | return '?';
|
|---|
| 934 | }
|
|---|
| 935 | }
|
|---|
| 936 | else if (pfound->has_arg == 1)
|
|---|
| 937 | {
|
|---|
| 938 | if (gos->optind < gos->argc)
|
|---|
| 939 | gos->optarg = gos->argv[gos->optind++];
|
|---|
| 940 | else
|
|---|
| 941 | {
|
|---|
| 942 | if (gos->opterr)
|
|---|
| 943 | errx (gos->pCtx, 2,
|
|---|
| 944 | _("%s: option '%s' requires an argument\n"),
|
|---|
| 945 | gos->argv[0], gos->argv[gos->optind - 1]);
|
|---|
| 946 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 947 | return gos->optstring[0] == ':' ? ':' : '?';
|
|---|
| 948 | }
|
|---|
| 949 | }
|
|---|
| 950 | gos->nextchar += strlen (gos->nextchar);
|
|---|
| 951 | if (longind != NULL)
|
|---|
| 952 | *longind = option_index;
|
|---|
| 953 | if (pfound->flag)
|
|---|
| 954 | {
|
|---|
| 955 | *(pfound->flag) = pfound->val;
|
|---|
| 956 | return 0;
|
|---|
| 957 | }
|
|---|
| 958 | return pfound->val;
|
|---|
| 959 | }
|
|---|
| 960 | gos->nextchar = NULL;
|
|---|
| 961 | return 'W'; /* Let the application handle it. */
|
|---|
| 962 | }
|
|---|
| 963 | if (temp[1] == ':')
|
|---|
| 964 | {
|
|---|
| 965 | if (temp[2] == ':')
|
|---|
| 966 | {
|
|---|
| 967 | /* This is an option that accepts an argument optionally. */
|
|---|
| 968 | if (*gos->nextchar != '\0')
|
|---|
| 969 | {
|
|---|
| 970 | gos->optarg = gos->nextchar;
|
|---|
| 971 | gos->optind++;
|
|---|
| 972 | }
|
|---|
| 973 | else
|
|---|
| 974 | gos->optarg = NULL;
|
|---|
| 975 | gos->nextchar = NULL;
|
|---|
| 976 | }
|
|---|
| 977 | else
|
|---|
| 978 | {
|
|---|
| 979 | /* This is an option that requires an argument. */
|
|---|
| 980 | if (*gos->nextchar != '\0')
|
|---|
| 981 | {
|
|---|
| 982 | gos->optarg = gos->nextchar;
|
|---|
| 983 | /* If we end this ARGV-element by taking the rest as an arg,
|
|---|
| 984 | we must advance to the next element now. */
|
|---|
| 985 | gos->optind++;
|
|---|
| 986 | }
|
|---|
| 987 | else if (gos->optind == gos->argc)
|
|---|
| 988 | {
|
|---|
| 989 | if (gos->opterr)
|
|---|
| 990 | {
|
|---|
| 991 | /* 1003.2 specifies the format of this message. */
|
|---|
| 992 | errx (gos->pCtx, 2,
|
|---|
| 993 | _("%s: option requires an argument -- %c\n"),
|
|---|
| 994 | gos->argv[0], c);
|
|---|
| 995 | }
|
|---|
| 996 | gos->optopt = c;
|
|---|
| 997 | if (gos->optstring[0] == ':')
|
|---|
| 998 | c = ':';
|
|---|
| 999 | else
|
|---|
| 1000 | c = '?';
|
|---|
| 1001 | }
|
|---|
| 1002 | else
|
|---|
| 1003 | /* We already incremented `optind' once;
|
|---|
| 1004 | increment it again when taking next ARGV-elt as argument. */
|
|---|
| 1005 | gos->optarg = gos->argv[gos->optind++];
|
|---|
| 1006 | gos->nextchar = NULL;
|
|---|
| 1007 | }
|
|---|
| 1008 | }
|
|---|
| 1009 | return c;
|
|---|
| 1010 | }
|
|---|
| 1011 | }
|
|---|
| 1012 |
|
|---|
| 1013 | int
|
|---|
| 1014 | getopt_r (struct getopt_state_r *gos)
|
|---|
| 1015 | {
|
|---|
| 1016 | return _getopt_internal_r (gos, NULL, NULL, 0);
|
|---|
| 1017 | }
|
|---|
| 1018 |
|
|---|
| 1019 | #endif /* #if 1 */ /* Not ELIDE_CODE. */
|
|---|
| 1020 | |
|---|
| 1021 |
|
|---|
| 1022 | #ifdef TEST
|
|---|
| 1023 |
|
|---|
| 1024 | /* Compile with -DTEST to make an executable for use in testing
|
|---|
| 1025 | the above definition of `getopt'. */
|
|---|
| 1026 |
|
|---|
| 1027 | int
|
|---|
| 1028 | main (int argc, char **argv)
|
|---|
| 1029 | {
|
|---|
| 1030 | int c;
|
|---|
| 1031 | int digit_optind = 0;
|
|---|
| 1032 | struct getopt_state_r = gos;
|
|---|
| 1033 |
|
|---|
| 1034 | getopt_initialize_r (&gos, argc, argv, "abc:d:0123456789", NULL, NULL, NULL);
|
|---|
| 1035 |
|
|---|
| 1036 | while (1)
|
|---|
| 1037 | {
|
|---|
| 1038 | int this_option_optind = gos.optind ? gos.optind : 1;
|
|---|
| 1039 |
|
|---|
| 1040 | c = getopt_r (&gos);
|
|---|
| 1041 | if (c == -1)
|
|---|
| 1042 | break;
|
|---|
| 1043 |
|
|---|
| 1044 | switch (c)
|
|---|
| 1045 | {
|
|---|
| 1046 | case '0':
|
|---|
| 1047 | case '1':
|
|---|
| 1048 | case '2':
|
|---|
| 1049 | case '3':
|
|---|
| 1050 | case '4':
|
|---|
| 1051 | case '5':
|
|---|
| 1052 | case '6':
|
|---|
| 1053 | case '7':
|
|---|
| 1054 | case '8':
|
|---|
| 1055 | case '9':
|
|---|
| 1056 | if (digit_optind != 0 && digit_optind != this_option_optind)
|
|---|
| 1057 | printf ("digits occur in two different argv-elements.\n");
|
|---|
| 1058 | digit_optind = this_option_optind;
|
|---|
| 1059 | printf ("option %c\n", c);
|
|---|
| 1060 | break;
|
|---|
| 1061 |
|
|---|
| 1062 | case 'a':
|
|---|
| 1063 | printf ("option a\n");
|
|---|
| 1064 | break;
|
|---|
| 1065 |
|
|---|
| 1066 | case 'b':
|
|---|
| 1067 | printf ("option b\n");
|
|---|
| 1068 | break;
|
|---|
| 1069 |
|
|---|
| 1070 | case 'c':
|
|---|
| 1071 | printf ("option c with value '%s'\n", optarg);
|
|---|
| 1072 | break;
|
|---|
| 1073 |
|
|---|
| 1074 | case '?':
|
|---|
| 1075 | break;
|
|---|
| 1076 |
|
|---|
| 1077 | default:
|
|---|
| 1078 | printf ("?? getopt returned character code 0%o ??\n", c);
|
|---|
| 1079 | }
|
|---|
| 1080 | }
|
|---|
| 1081 |
|
|---|
| 1082 | if (gos.optind < argc)
|
|---|
| 1083 | {
|
|---|
| 1084 | printf ("non-option ARGV-elements: ");
|
|---|
| 1085 | while (gos.optind < argc)
|
|---|
| 1086 | printf ("%s ", argv[gos.optind++]);
|
|---|
| 1087 | printf ("\n");
|
|---|
| 1088 | }
|
|---|
| 1089 |
|
|---|
| 1090 | exit (0);
|
|---|
| 1091 | }
|
|---|
| 1092 |
|
|---|
| 1093 | #endif /* TEST */
|
|---|