[5920cf1] | 1 | /* Getopt for GNU. |
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| 2 | NOTE: getopt is now part of the C library, so if you don't know what |
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[017fc13] | 3 | "Keep this file name-space clean" means, talk to drepper@gnu.org |
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[5920cf1] | 4 | before changing it! |
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[534afcf] | 5 | Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002 |
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| 6 | Free Software Foundation, Inc. |
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| 7 | This file is part of the GNU C Library. |
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[5920cf1] | 8 | |
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| 9 | The GNU C Library is free software; you can redistribute it and/or |
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[534afcf] | 10 | modify it under the terms of the GNU Lesser General Public |
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| 11 | License as published by the Free Software Foundation; either |
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| 12 | version 2.1 of the License, or (at your option) any later version. |
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[5920cf1] | 13 | |
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| 14 | The GNU C Library is distributed in the hope that it will be useful, |
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| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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[534afcf] | 17 | Lesser General Public License for more details. |
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[5920cf1] | 18 | |
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[534afcf] | 19 | You should have received a copy of the GNU Lesser General Public |
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| 20 | License along with the GNU C Library; if not, write to the Free |
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| 21 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 22 | 02111-1307 USA. */ |
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[5920cf1] | 23 | |
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| 24 | /* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>. |
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| 25 | Ditto for AIX 3.2 and <stdlib.h>. */ |
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| 26 | #ifndef _NO_PROTO |
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[017fc13] | 27 | # define _NO_PROTO |
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[5920cf1] | 28 | #endif |
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| 29 | |
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| 30 | #ifdef HAVE_CONFIG_H |
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[017fc13] | 31 | # include <config.h> |
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[5920cf1] | 32 | #endif |
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| 33 | |
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[017fc13] | 34 | #if !defined __STDC__ || !__STDC__ |
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[5920cf1] | 35 | /* This is a separate conditional since some stdc systems |
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| 36 | reject `defined (const)'. */ |
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[017fc13] | 37 | # ifndef const |
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| 38 | # define const |
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| 39 | # endif |
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[5920cf1] | 40 | #endif |
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| 41 | |
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[d1b1380] | 42 | #include <stdio.h> |
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[5920cf1] | 43 | |
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| 44 | /* Comment out all this code if we are using the GNU C Library, and are not |
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| 45 | actually compiling the library itself. This code is part of the GNU C |
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| 46 | Library, but also included in many other GNU distributions. Compiling |
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| 47 | and linking in this code is a waste when using the GNU C library |
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| 48 | (especially if it is a shared library). Rather than having every GNU |
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| 49 | program understand `configure --with-gnu-libc' and omit the object files, |
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| 50 | it is simpler to just do this in the source for each such file. */ |
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| 51 | |
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| 52 | #define GETOPT_INTERFACE_VERSION 2 |
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[017fc13] | 53 | #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 |
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| 54 | # include <gnu-versions.h> |
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| 55 | # if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION |
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| 56 | # define ELIDE_CODE |
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| 57 | # endif |
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[5920cf1] | 58 | #endif |
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| 59 | |
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| 60 | #ifndef ELIDE_CODE |
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| 61 | |
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| 62 | |
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| 63 | /* This needs to come after some library #include |
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| 64 | to get __GNU_LIBRARY__ defined. */ |
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| 65 | #ifdef __GNU_LIBRARY__ |
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| 66 | /* Don't include stdlib.h for non-GNU C libraries because some of them |
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| 67 | contain conflicting prototypes for getopt. */ |
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[017fc13] | 68 | # include <stdlib.h> |
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| 69 | # include <unistd.h> |
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[5920cf1] | 70 | #endif /* GNU C library. */ |
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| 71 | |
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| 72 | #ifdef VMS |
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[017fc13] | 73 | # include <unixlib.h> |
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| 74 | # if HAVE_STRING_H - 0 |
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| 75 | # include <string.h> |
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| 76 | # endif |
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[5920cf1] | 77 | #endif |
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| 78 | |
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| 79 | #ifndef _ |
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[017fc13] | 80 | /* This is for other GNU distributions with internationalized messages. */ |
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[534afcf] | 81 | # if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC |
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[017fc13] | 82 | # include <libintl.h> |
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| 83 | # ifndef _ |
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| 84 | # define _(msgid) gettext (msgid) |
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| 85 | # endif |
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| 86 | # else |
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| 87 | # define _(msgid) (msgid) |
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| 88 | # endif |
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[534afcf] | 89 | # if defined _LIBC && defined USE_IN_LIBIO |
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| 90 | # include <wchar.h> |
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| 91 | # endif |
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| 92 | #endif |
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| 93 | |
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| 94 | #ifndef attribute_hidden |
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| 95 | # define attribute_hidden |
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[5920cf1] | 96 | #endif |
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| 97 | |
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| 98 | /* This version of `getopt' appears to the caller like standard Unix `getopt' |
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| 99 | but it behaves differently for the user, since it allows the user |
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| 100 | to intersperse the options with the other arguments. |
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| 101 | |
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| 102 | As `getopt' works, it permutes the elements of ARGV so that, |
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| 103 | when it is done, all the options precede everything else. Thus |
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| 104 | all application programs are extended to handle flexible argument order. |
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| 105 | |
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| 106 | Setting the environment variable POSIXLY_CORRECT disables permutation. |
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| 107 | Then the behavior is completely standard. |
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| 108 | |
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| 109 | GNU application programs can use a third alternative mode in which |
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| 110 | they can distinguish the relative order of options and other arguments. */ |
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| 111 | |
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| 112 | #include "getopt.h" |
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| 113 | |
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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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[017fc13] | 120 | char *optarg; |
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[5920cf1] | 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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[534afcf] | 141 | int __getopt_initialized attribute_hidden; |
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[5920cf1] | 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 | |
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| 163 | /* Describe how to deal with options that follow non-option ARGV-elements. |
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| 164 | |
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| 165 | If the caller did not specify anything, |
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| 166 | the default is REQUIRE_ORDER if the environment variable |
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| 167 | POSIXLY_CORRECT is defined, PERMUTE otherwise. |
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| 168 | |
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| 169 | REQUIRE_ORDER means don't recognize them as options; |
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| 170 | stop option processing when the first non-option is seen. |
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| 171 | This is what Unix does. |
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| 172 | This mode of operation is selected by either setting the environment |
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| 173 | variable POSIXLY_CORRECT, or using `+' as the first character |
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| 174 | of the list of option characters. |
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| 175 | |
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| 176 | PERMUTE is the default. We permute the contents of ARGV as we scan, |
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| 177 | so that eventually all the non-options are at the end. This allows options |
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| 178 | to be given in any order, even with programs that were not written to |
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| 179 | expect this. |
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| 180 | |
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| 181 | RETURN_IN_ORDER is an option available to programs that were written |
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| 182 | to expect options and other ARGV-elements in any order and that care about |
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| 183 | the ordering of the two. We describe each non-option ARGV-element |
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| 184 | as if it were the argument of an option with character code 1. |
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| 185 | Using `-' as the first character of the list of option characters |
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| 186 | selects this mode of operation. |
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| 187 | |
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| 188 | The special argument `--' forces an end of option-scanning regardless |
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| 189 | of the value of `ordering'. In the case of RETURN_IN_ORDER, only |
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| 190 | `--' can cause `getopt' to return -1 with `optind' != ARGC. */ |
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| 191 | |
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| 192 | static enum |
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| 193 | { |
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| 194 | REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER |
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| 195 | } ordering; |
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| 196 | |
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| 197 | /* Value of POSIXLY_CORRECT environment variable. */ |
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| 198 | static char *posixly_correct; |
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| 199 | |
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| 200 | #ifdef __GNU_LIBRARY__ |
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| 201 | /* We want to avoid inclusion of string.h with non-GNU libraries |
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| 202 | because there are many ways it can cause trouble. |
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| 203 | On some systems, it contains special magic macros that don't work |
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| 204 | in GCC. */ |
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[017fc13] | 205 | # include <string.h> |
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| 206 | # define my_index strchr |
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[5920cf1] | 207 | #else |
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| 208 | |
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[017fc13] | 209 | # if HAVE_STRING_H |
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| 210 | # include <string.h> |
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| 211 | # else |
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| 212 | # include <strings.h> |
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| 213 | # endif |
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| 214 | |
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[5920cf1] | 215 | /* Avoid depending on library functions or files |
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| 216 | whose names are inconsistent. */ |
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| 217 | |
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[017fc13] | 218 | #ifndef getenv |
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| 219 | extern char *getenv (); |
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| 220 | #endif |
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[5920cf1] | 221 | |
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| 222 | static char * |
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| 223 | my_index (str, chr) |
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| 224 | const char *str; |
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| 225 | int chr; |
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| 226 | { |
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| 227 | while (*str) |
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| 228 | { |
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| 229 | if (*str == chr) |
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| 230 | return (char *) str; |
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| 231 | str++; |
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| 232 | } |
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| 233 | return 0; |
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| 234 | } |
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| 235 | |
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| 236 | /* If using GCC, we can safely declare strlen this way. |
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| 237 | If not using GCC, it is ok not to declare it. */ |
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| 238 | #ifdef __GNUC__ |
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| 239 | /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. |
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| 240 | That was relevant to code that was here before. */ |
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[017fc13] | 241 | # if (!defined __STDC__ || !__STDC__) && !defined strlen |
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[5920cf1] | 242 | /* gcc with -traditional declares the built-in strlen to return int, |
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| 243 | and has done so at least since version 2.4.5. -- rms. */ |
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| 244 | extern int strlen (const char *); |
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[017fc13] | 245 | # endif /* not __STDC__ */ |
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[5920cf1] | 246 | #endif /* __GNUC__ */ |
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| 247 | |
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| 248 | #endif /* not __GNU_LIBRARY__ */ |
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| 249 | |
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| 250 | /* Handle permutation of arguments. */ |
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| 251 | |
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| 252 | /* Describe the part of ARGV that contains non-options that have |
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| 253 | been skipped. `first_nonopt' is the index in ARGV of the first of them; |
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| 254 | `last_nonopt' is the index after the last of them. */ |
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| 255 | |
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| 256 | static int first_nonopt; |
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| 257 | static int last_nonopt; |
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| 258 | |
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| 259 | #ifdef _LIBC |
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[534afcf] | 260 | /* Stored original parameters. |
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| 261 | XXX This is no good solution. We should rather copy the args so |
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| 262 | that we can compare them later. But we must not use malloc(3). */ |
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| 263 | extern int __libc_argc; |
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| 264 | extern char **__libc_argv; |
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| 265 | |
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[5920cf1] | 266 | /* Bash 2.0 gives us an environment variable containing flags |
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| 267 | indicating ARGV elements that should not be considered arguments. */ |
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| 268 | |
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[534afcf] | 269 | # ifdef USE_NONOPTION_FLAGS |
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[5920cf1] | 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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[534afcf] | 275 | # endif |
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[5920cf1] | 276 | |
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[534afcf] | 277 | # ifdef USE_NONOPTION_FLAGS |
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| 278 | # define SWAP_FLAGS(ch1, ch2) \ |
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[5920cf1] | 279 | if (nonoption_flags_len > 0) \ |
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| 280 | { \ |
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| 281 | char __tmp = __getopt_nonoption_flags[ch1]; \ |
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| 282 | __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ |
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| 283 | __getopt_nonoption_flags[ch2] = __tmp; \ |
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| 284 | } |
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[534afcf] | 285 | # else |
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| 286 | # define SWAP_FLAGS(ch1, ch2) |
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| 287 | # endif |
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[5920cf1] | 288 | #else /* !_LIBC */ |
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| 289 | # define SWAP_FLAGS(ch1, ch2) |
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| 290 | #endif /* _LIBC */ |
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| 291 | |
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| 292 | /* Exchange two adjacent subsequences of ARGV. |
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| 293 | One subsequence is elements [first_nonopt,last_nonopt) |
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| 294 | which contains all the non-options that have been skipped so far. |
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| 295 | The other is elements [last_nonopt,optind), which contains all |
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| 296 | the options processed since those non-options were skipped. |
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| 297 | |
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| 298 | `first_nonopt' and `last_nonopt' are relocated so that they describe |
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| 299 | the new indices of the non-options in ARGV after they are moved. */ |
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| 300 | |
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[017fc13] | 301 | #if defined __STDC__ && __STDC__ |
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[5920cf1] | 302 | static void exchange (char **); |
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| 303 | #endif |
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| 304 | |
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| 305 | static void |
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| 306 | exchange (argv) |
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| 307 | char **argv; |
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| 308 | { |
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| 309 | int bottom = first_nonopt; |
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| 310 | int middle = last_nonopt; |
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| 311 | int top = optind; |
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| 312 | char *tem; |
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| 313 | |
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| 314 | /* Exchange the shorter segment with the far end of the longer segment. |
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| 315 | That puts the shorter segment into the right place. |
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| 316 | It leaves the longer segment in the right place overall, |
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| 317 | but it consists of two parts that need to be swapped next. */ |
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| 318 | |
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[534afcf] | 319 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
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[5920cf1] | 320 | /* First make sure the handling of the `__getopt_nonoption_flags' |
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| 321 | string can work normally. Our top argument must be in the range |
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| 322 | of the string. */ |
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| 323 | if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len) |
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| 324 | { |
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| 325 | /* We must extend the array. The user plays games with us and |
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| 326 | presents new arguments. */ |
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| 327 | char *new_str = malloc (top + 1); |
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| 328 | if (new_str == NULL) |
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| 329 | nonoption_flags_len = nonoption_flags_max_len = 0; |
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| 330 | else |
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| 331 | { |
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[017fc13] | 332 | memset (__mempcpy (new_str, __getopt_nonoption_flags, |
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| 333 | nonoption_flags_max_len), |
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| 334 | '\0', top + 1 - nonoption_flags_max_len); |
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[5920cf1] | 335 | nonoption_flags_max_len = top + 1; |
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| 336 | __getopt_nonoption_flags = new_str; |
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| 337 | } |
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| 338 | } |
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| 339 | #endif |
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| 340 | |
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| 341 | while (top > middle && middle > bottom) |
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| 342 | { |
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| 343 | if (top - middle > middle - bottom) |
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| 344 | { |
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| 345 | /* Bottom segment is the short one. */ |
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| 346 | int len = middle - bottom; |
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| 347 | register int i; |
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| 348 | |
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| 349 | /* Swap it with the top part of the top segment. */ |
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| 350 | for (i = 0; i < len; i++) |
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| 351 | { |
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| 352 | tem = argv[bottom + i]; |
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| 353 | argv[bottom + i] = argv[top - (middle - bottom) + i]; |
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| 354 | argv[top - (middle - bottom) + i] = tem; |
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| 355 | SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); |
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| 356 | } |
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| 357 | /* Exclude the moved bottom segment from further swapping. */ |
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| 358 | top -= len; |
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| 359 | } |
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| 360 | else |
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| 361 | { |
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| 362 | /* Top segment is the short one. */ |
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| 363 | int len = top - middle; |
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| 364 | register int i; |
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| 365 | |
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| 366 | /* Swap it with the bottom part of the bottom segment. */ |
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| 367 | for (i = 0; i < len; i++) |
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| 368 | { |
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| 369 | tem = argv[bottom + i]; |
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| 370 | argv[bottom + i] = argv[middle + i]; |
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| 371 | argv[middle + i] = tem; |
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| 372 | SWAP_FLAGS (bottom + i, middle + i); |
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| 373 | } |
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| 374 | /* Exclude the moved top segment from further swapping. */ |
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| 375 | bottom += len; |
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| 376 | } |
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| 377 | } |
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| 378 | |
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| 379 | /* Update records for the slots the non-options now occupy. */ |
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| 380 | |
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| 381 | first_nonopt += (optind - last_nonopt); |
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| 382 | last_nonopt = optind; |
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| 383 | } |
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| 384 | |
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| 385 | /* Initialize the internal data when the first call is made. */ |
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| 386 | |
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[017fc13] | 387 | #if defined __STDC__ && __STDC__ |
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[5920cf1] | 388 | static const char *_getopt_initialize (int, char *const *, const char *); |
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| 389 | #endif |
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| 390 | static const char * |
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| 391 | _getopt_initialize (argc, argv, optstring) |
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| 392 | int argc; |
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| 393 | char *const *argv; |
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| 394 | const char *optstring; |
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| 395 | { |
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| 396 | /* Start processing options with ARGV-element 1 (since ARGV-element 0 |
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| 397 | is the program name); the sequence of previously skipped |
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| 398 | non-option ARGV-elements is empty. */ |
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| 399 | |
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| 400 | first_nonopt = last_nonopt = optind; |
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[d1b1380] | 401 | |
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[5920cf1] | 402 | nextchar = NULL; |
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[d1b1380] | 403 | |
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[5920cf1] | 404 | posixly_correct = getenv ("POSIXLY_CORRECT"); |
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[d1b1380] | 405 | |
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[5920cf1] | 406 | /* Determine how to handle the ordering of options and nonoptions. */ |
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| 407 | |
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| 408 | if (optstring[0] == '-') |
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| 409 | { |
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| 410 | ordering = RETURN_IN_ORDER; |
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| 411 | ++optstring; |
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| 412 | } |
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| 413 | else if (optstring[0] == '+') |
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| 414 | { |
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| 415 | ordering = REQUIRE_ORDER; |
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| 416 | ++optstring; |
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| 417 | } |
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| 418 | else if (posixly_correct != NULL) |
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| 419 | ordering = REQUIRE_ORDER; |
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| 420 | else |
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| 421 | ordering = PERMUTE; |
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| 422 | |
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[534afcf] | 423 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
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[5920cf1] | 424 | if (posixly_correct == NULL |
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[534afcf] | 425 | && argc == __libc_argc && argv == __libc_argv) |
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[5920cf1] | 426 | { |
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| 427 | if (nonoption_flags_max_len == 0) |
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| 428 | { |
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| 429 | if (__getopt_nonoption_flags == NULL |
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| 430 | || __getopt_nonoption_flags[0] == '\0') |
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| 431 | nonoption_flags_max_len = -1; |
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| 432 | else |
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| 433 | { |
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| 434 | const char *orig_str = __getopt_nonoption_flags; |
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| 435 | int len = nonoption_flags_max_len = strlen (orig_str); |
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| 436 | if (nonoption_flags_max_len < argc) |
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| 437 | nonoption_flags_max_len = argc; |
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| 438 | __getopt_nonoption_flags = |
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| 439 | (char *) malloc (nonoption_flags_max_len); |
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| 440 | if (__getopt_nonoption_flags == NULL) |
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| 441 | nonoption_flags_max_len = -1; |
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| 442 | else |
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[017fc13] | 443 | memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), |
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| 444 | '\0', nonoption_flags_max_len - len); |
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[5920cf1] | 445 | } |
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| 446 | } |
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| 447 | nonoption_flags_len = nonoption_flags_max_len; |
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| 448 | } |
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| 449 | else |
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| 450 | nonoption_flags_len = 0; |
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| 451 | #endif |
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| 452 | |
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| 453 | return optstring; |
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| 454 | } |
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| 455 | |
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| 456 | /* Scan elements of ARGV (whose length is ARGC) for option characters |
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| 457 | given in OPTSTRING. |
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| 458 | |
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| 459 | If an element of ARGV starts with '-', and is not exactly "-" or "--", |
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| 460 | then it is an option element. The characters of this element |
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| 461 | (aside from the initial '-') are option characters. If `getopt' |
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| 462 | is called repeatedly, it returns successively each of the option characters |
---|
| 463 | from each of the option elements. |
---|
| 464 | |
---|
| 465 | If `getopt' finds another option character, it returns that character, |
---|
| 466 | updating `optind' and `nextchar' so that the next call to `getopt' can |
---|
| 467 | resume the scan with the following option character or ARGV-element. |
---|
| 468 | |
---|
| 469 | If there are no more option characters, `getopt' returns -1. |
---|
| 470 | Then `optind' is the index in ARGV of the first ARGV-element |
---|
| 471 | that is not an option. (The ARGV-elements have been permuted |
---|
| 472 | so that those that are not options now come last.) |
---|
| 473 | |
---|
| 474 | OPTSTRING is a string containing the legitimate option characters. |
---|
| 475 | If an option character is seen that is not listed in OPTSTRING, |
---|
| 476 | return '?' after printing an error message. If you set `opterr' to |
---|
| 477 | zero, the error message is suppressed but we still return '?'. |
---|
| 478 | |
---|
| 479 | If a char in OPTSTRING is followed by a colon, that means it wants an arg, |
---|
| 480 | so the following text in the same ARGV-element, or the text of the following |
---|
| 481 | ARGV-element, is returned in `optarg'. Two colons mean an option that |
---|
| 482 | wants an optional arg; if there is text in the current ARGV-element, |
---|
| 483 | it is returned in `optarg', otherwise `optarg' is set to zero. |
---|
| 484 | |
---|
| 485 | If OPTSTRING starts with `-' or `+', it requests different methods of |
---|
| 486 | handling the non-option ARGV-elements. |
---|
| 487 | See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. |
---|
| 488 | |
---|
| 489 | Long-named options begin with `--' instead of `-'. |
---|
| 490 | Their names may be abbreviated as long as the abbreviation is unique |
---|
| 491 | or is an exact match for some defined option. If they have an |
---|
| 492 | argument, it follows the option name in the same ARGV-element, separated |
---|
| 493 | from the option name by a `=', or else the in next ARGV-element. |
---|
| 494 | When `getopt' finds a long-named option, it returns 0 if that option's |
---|
| 495 | `flag' field is nonzero, the value of the option's `val' field |
---|
| 496 | if the `flag' field is zero. |
---|
| 497 | |
---|
| 498 | The elements of ARGV aren't really const, because we permute them. |
---|
| 499 | But we pretend they're const in the prototype to be compatible |
---|
| 500 | with other systems. |
---|
| 501 | |
---|
| 502 | LONGOPTS is a vector of `struct option' terminated by an |
---|
| 503 | element containing a name which is zero. |
---|
| 504 | |
---|
| 505 | LONGIND returns the index in LONGOPT of the long-named option found. |
---|
| 506 | It is only valid when a long-named option has been found by the most |
---|
| 507 | recent call. |
---|
| 508 | |
---|
| 509 | If LONG_ONLY is nonzero, '-' as well as '--' can introduce |
---|
| 510 | long-named options. */ |
---|
| 511 | |
---|
| 512 | int |
---|
| 513 | _getopt_internal (argc, argv, optstring, longopts, longind, long_only) |
---|
| 514 | int argc; |
---|
| 515 | char *const *argv; |
---|
| 516 | const char *optstring; |
---|
| 517 | const struct option *longopts; |
---|
| 518 | int *longind; |
---|
| 519 | int long_only; |
---|
[d1b1380] | 520 | { |
---|
[017fc13] | 521 | int print_errors = opterr; |
---|
| 522 | if (optstring[0] == ':') |
---|
| 523 | print_errors = 0; |
---|
| 524 | |
---|
| 525 | if (argc < 1) |
---|
| 526 | return -1; |
---|
| 527 | |
---|
[5920cf1] | 528 | optarg = NULL; |
---|
| 529 | |
---|
| 530 | if (optind == 0 || !__getopt_initialized) |
---|
| 531 | { |
---|
| 532 | if (optind == 0) |
---|
| 533 | optind = 1; /* Don't scan ARGV[0], the program name. */ |
---|
| 534 | optstring = _getopt_initialize (argc, argv, optstring); |
---|
| 535 | __getopt_initialized = 1; |
---|
| 536 | } |
---|
| 537 | |
---|
| 538 | /* Test whether ARGV[optind] points to a non-option argument. |
---|
| 539 | Either it does not have option syntax, or there is an environment flag |
---|
| 540 | from the shell indicating it is not an option. The later information |
---|
| 541 | is only used when the used in the GNU libc. */ |
---|
[534afcf] | 542 | #if defined _LIBC && defined USE_NONOPTION_FLAGS |
---|
[017fc13] | 543 | # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \ |
---|
| 544 | || (optind < nonoption_flags_len \ |
---|
| 545 | && __getopt_nonoption_flags[optind] == '1')) |
---|
[5920cf1] | 546 | #else |
---|
[017fc13] | 547 | # define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0') |
---|
[5920cf1] | 548 | #endif |
---|
| 549 | |
---|
| 550 | if (nextchar == NULL || *nextchar == '\0') |
---|
| 551 | { |
---|
| 552 | /* Advance to the next ARGV-element. */ |
---|
| 553 | |
---|
| 554 | /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been |
---|
| 555 | moved back by the user (who may also have changed the arguments). */ |
---|
| 556 | if (last_nonopt > optind) |
---|
| 557 | last_nonopt = optind; |
---|
| 558 | if (first_nonopt > optind) |
---|
| 559 | first_nonopt = optind; |
---|
| 560 | |
---|
| 561 | if (ordering == PERMUTE) |
---|
| 562 | { |
---|
| 563 | /* If we have just processed some options following some non-options, |
---|
| 564 | exchange them so that the options come first. */ |
---|
| 565 | |
---|
| 566 | if (first_nonopt != last_nonopt && last_nonopt != optind) |
---|
| 567 | exchange ((char **) argv); |
---|
| 568 | else if (last_nonopt != optind) |
---|
| 569 | first_nonopt = optind; |
---|
| 570 | |
---|
| 571 | /* Skip any additional non-options |
---|
| 572 | and extend the range of non-options previously skipped. */ |
---|
| 573 | |
---|
| 574 | while (optind < argc && NONOPTION_P) |
---|
| 575 | optind++; |
---|
| 576 | last_nonopt = optind; |
---|
| 577 | } |
---|
| 578 | |
---|
| 579 | /* The special ARGV-element `--' means premature end of options. |
---|
| 580 | Skip it like a null option, |
---|
| 581 | then exchange with previous non-options as if it were an option, |
---|
| 582 | then skip everything else like a non-option. */ |
---|
| 583 | |
---|
| 584 | if (optind != argc && !strcmp (argv[optind], "--")) |
---|
| 585 | { |
---|
| 586 | optind++; |
---|
| 587 | |
---|
| 588 | if (first_nonopt != last_nonopt && last_nonopt != optind) |
---|
| 589 | exchange ((char **) argv); |
---|
| 590 | else if (first_nonopt == last_nonopt) |
---|
| 591 | first_nonopt = optind; |
---|
| 592 | last_nonopt = argc; |
---|
| 593 | |
---|
| 594 | optind = argc; |
---|
| 595 | } |
---|
| 596 | |
---|
| 597 | /* If we have done all the ARGV-elements, stop the scan |
---|
| 598 | and back over any non-options that we skipped and permuted. */ |
---|
| 599 | |
---|
| 600 | if (optind == argc) |
---|
| 601 | { |
---|
| 602 | /* Set the next-arg-index to point at the non-options |
---|
| 603 | that we previously skipped, so the caller will digest them. */ |
---|
| 604 | if (first_nonopt != last_nonopt) |
---|
| 605 | optind = first_nonopt; |
---|
| 606 | return -1; |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | /* If we have come to a non-option and did not permute it, |
---|
| 610 | either stop the scan or describe it to the caller and pass it by. */ |
---|
| 611 | |
---|
| 612 | if (NONOPTION_P) |
---|
| 613 | { |
---|
| 614 | if (ordering == REQUIRE_ORDER) |
---|
| 615 | return -1; |
---|
| 616 | optarg = argv[optind++]; |
---|
| 617 | return 1; |
---|
| 618 | } |
---|
| 619 | |
---|
| 620 | /* We have found another option-ARGV-element. |
---|
| 621 | Skip the initial punctuation. */ |
---|
| 622 | |
---|
| 623 | nextchar = (argv[optind] + 1 |
---|
| 624 | + (longopts != NULL && argv[optind][1] == '-')); |
---|
| 625 | } |
---|
| 626 | |
---|
| 627 | /* Decode the current option-ARGV-element. */ |
---|
| 628 | |
---|
| 629 | /* Check whether the ARGV-element is a long option. |
---|
[d1b1380] | 630 | |
---|
[5920cf1] | 631 | If long_only and the ARGV-element has the form "-f", where f is |
---|
| 632 | a valid short option, don't consider it an abbreviated form of |
---|
| 633 | a long option that starts with f. Otherwise there would be no |
---|
| 634 | way to give the -f short option. |
---|
| 635 | |
---|
| 636 | On the other hand, if there's a long option "fubar" and |
---|
| 637 | the ARGV-element is "-fu", do consider that an abbreviation of |
---|
| 638 | the long option, just like "--fu", and not "-f" with arg "u". |
---|
| 639 | |
---|
| 640 | This distinction seems to be the most useful approach. */ |
---|
| 641 | |
---|
| 642 | if (longopts != NULL |
---|
| 643 | && (argv[optind][1] == '-' |
---|
| 644 | || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) |
---|
| 645 | { |
---|
| 646 | char *nameend; |
---|
| 647 | const struct option *p; |
---|
| 648 | const struct option *pfound = NULL; |
---|
| 649 | int exact = 0; |
---|
| 650 | int ambig = 0; |
---|
| 651 | int indfound = -1; |
---|
| 652 | int option_index; |
---|
| 653 | |
---|
| 654 | for (nameend = nextchar; *nameend && *nameend != '='; nameend++) |
---|
| 655 | /* Do nothing. */ ; |
---|
| 656 | |
---|
| 657 | /* Test all long options for either exact match |
---|
| 658 | or abbreviated matches. */ |
---|
| 659 | for (p = longopts, option_index = 0; p->name; p++, option_index++) |
---|
| 660 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
---|
| 661 | { |
---|
| 662 | if ((unsigned int) (nameend - nextchar) |
---|
| 663 | == (unsigned int) strlen (p->name)) |
---|
| 664 | { |
---|
| 665 | /* Exact match found. */ |
---|
| 666 | pfound = p; |
---|
| 667 | indfound = option_index; |
---|
| 668 | exact = 1; |
---|
| 669 | break; |
---|
| 670 | } |
---|
| 671 | else if (pfound == NULL) |
---|
| 672 | { |
---|
| 673 | /* First nonexact match found. */ |
---|
| 674 | pfound = p; |
---|
| 675 | indfound = option_index; |
---|
| 676 | } |
---|
[017fc13] | 677 | else if (long_only |
---|
| 678 | || pfound->has_arg != p->has_arg |
---|
| 679 | || pfound->flag != p->flag |
---|
| 680 | || pfound->val != p->val) |
---|
[5920cf1] | 681 | /* Second or later nonexact match found. */ |
---|
| 682 | ambig = 1; |
---|
| 683 | } |
---|
| 684 | |
---|
| 685 | if (ambig && !exact) |
---|
| 686 | { |
---|
[017fc13] | 687 | if (print_errors) |
---|
[534afcf] | 688 | { |
---|
| 689 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 690 | char *buf; |
---|
| 691 | |
---|
| 692 | if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"), |
---|
| 693 | argv[0], argv[optind]) >= 0) |
---|
| 694 | { |
---|
| 695 | |
---|
| 696 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 697 | __fwprintf (stderr, L"%s", buf); |
---|
| 698 | else |
---|
| 699 | fputs (buf, stderr); |
---|
| 700 | |
---|
| 701 | free (buf); |
---|
| 702 | } |
---|
| 703 | #else |
---|
| 704 | fprintf (stderr, _("%s: option `%s' is ambiguous\n"), |
---|
| 705 | argv[0], argv[optind]); |
---|
| 706 | #endif |
---|
| 707 | } |
---|
[5920cf1] | 708 | nextchar += strlen (nextchar); |
---|
| 709 | optind++; |
---|
| 710 | optopt = 0; |
---|
| 711 | return '?'; |
---|
| 712 | } |
---|
| 713 | |
---|
| 714 | if (pfound != NULL) |
---|
| 715 | { |
---|
| 716 | option_index = indfound; |
---|
| 717 | optind++; |
---|
| 718 | if (*nameend) |
---|
| 719 | { |
---|
| 720 | /* Don't test has_arg with >, because some C compilers don't |
---|
| 721 | allow it to be used on enums. */ |
---|
| 722 | if (pfound->has_arg) |
---|
| 723 | optarg = nameend + 1; |
---|
| 724 | else |
---|
| 725 | { |
---|
[017fc13] | 726 | if (print_errors) |
---|
| 727 | { |
---|
[534afcf] | 728 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 729 | char *buf; |
---|
| 730 | int n; |
---|
| 731 | #endif |
---|
| 732 | |
---|
[017fc13] | 733 | if (argv[optind - 1][1] == '-') |
---|
[534afcf] | 734 | { |
---|
| 735 | /* --option */ |
---|
| 736 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 737 | n = __asprintf (&buf, _("\ |
---|
| 738 | %s: option `--%s' doesn't allow an argument\n"), |
---|
| 739 | argv[0], pfound->name); |
---|
| 740 | #else |
---|
| 741 | fprintf (stderr, _("\ |
---|
| 742 | %s: option `--%s' doesn't allow an argument\n"), |
---|
| 743 | argv[0], pfound->name); |
---|
| 744 | #endif |
---|
| 745 | } |
---|
[017fc13] | 746 | else |
---|
[534afcf] | 747 | { |
---|
| 748 | /* +option or -option */ |
---|
| 749 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 750 | n = __asprintf (&buf, _("\ |
---|
| 751 | %s: option `%c%s' doesn't allow an argument\n"), |
---|
| 752 | argv[0], argv[optind - 1][0], |
---|
| 753 | pfound->name); |
---|
| 754 | #else |
---|
| 755 | fprintf (stderr, _("\ |
---|
| 756 | %s: option `%c%s' doesn't allow an argument\n"), |
---|
| 757 | argv[0], argv[optind - 1][0], pfound->name); |
---|
| 758 | #endif |
---|
| 759 | } |
---|
| 760 | |
---|
| 761 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 762 | if (n >= 0) |
---|
| 763 | { |
---|
| 764 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 765 | __fwprintf (stderr, L"%s", buf); |
---|
| 766 | else |
---|
| 767 | fputs (buf, stderr); |
---|
| 768 | |
---|
| 769 | free (buf); |
---|
| 770 | } |
---|
| 771 | #endif |
---|
[017fc13] | 772 | } |
---|
[5920cf1] | 773 | |
---|
| 774 | nextchar += strlen (nextchar); |
---|
| 775 | |
---|
| 776 | optopt = pfound->val; |
---|
| 777 | return '?'; |
---|
| 778 | } |
---|
| 779 | } |
---|
| 780 | else if (pfound->has_arg == 1) |
---|
| 781 | { |
---|
| 782 | if (optind < argc) |
---|
| 783 | optarg = argv[optind++]; |
---|
| 784 | else |
---|
| 785 | { |
---|
[017fc13] | 786 | if (print_errors) |
---|
[534afcf] | 787 | { |
---|
| 788 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 789 | char *buf; |
---|
| 790 | |
---|
| 791 | if (__asprintf (&buf, _("\ |
---|
| 792 | %s: option `%s' requires an argument\n"), |
---|
| 793 | argv[0], argv[optind - 1]) >= 0) |
---|
| 794 | { |
---|
| 795 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 796 | __fwprintf (stderr, L"%s", buf); |
---|
| 797 | else |
---|
| 798 | fputs (buf, stderr); |
---|
| 799 | |
---|
| 800 | free (buf); |
---|
| 801 | } |
---|
| 802 | #else |
---|
| 803 | fprintf (stderr, |
---|
| 804 | _("%s: option `%s' requires an argument\n"), |
---|
| 805 | argv[0], argv[optind - 1]); |
---|
| 806 | #endif |
---|
| 807 | } |
---|
[5920cf1] | 808 | nextchar += strlen (nextchar); |
---|
| 809 | optopt = pfound->val; |
---|
| 810 | return optstring[0] == ':' ? ':' : '?'; |
---|
[d1b1380] | 811 | } |
---|
[5920cf1] | 812 | } |
---|
| 813 | nextchar += strlen (nextchar); |
---|
| 814 | if (longind != NULL) |
---|
| 815 | *longind = option_index; |
---|
| 816 | if (pfound->flag) |
---|
| 817 | { |
---|
| 818 | *(pfound->flag) = pfound->val; |
---|
| 819 | return 0; |
---|
| 820 | } |
---|
| 821 | return pfound->val; |
---|
| 822 | } |
---|
| 823 | |
---|
| 824 | /* Can't find it as a long option. If this is not getopt_long_only, |
---|
| 825 | or the option starts with '--' or is not a valid short |
---|
| 826 | option, then it's an error. |
---|
| 827 | Otherwise interpret it as a short option. */ |
---|
| 828 | if (!long_only || argv[optind][1] == '-' |
---|
| 829 | || my_index (optstring, *nextchar) == NULL) |
---|
| 830 | { |
---|
[017fc13] | 831 | if (print_errors) |
---|
[5920cf1] | 832 | { |
---|
[534afcf] | 833 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 834 | char *buf; |
---|
| 835 | int n; |
---|
| 836 | #endif |
---|
| 837 | |
---|
[5920cf1] | 838 | if (argv[optind][1] == '-') |
---|
[534afcf] | 839 | { |
---|
| 840 | /* --option */ |
---|
| 841 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 842 | n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"), |
---|
| 843 | argv[0], nextchar); |
---|
| 844 | #else |
---|
| 845 | fprintf (stderr, _("%s: unrecognized option `--%s'\n"), |
---|
| 846 | argv[0], nextchar); |
---|
| 847 | #endif |
---|
| 848 | } |
---|
[5920cf1] | 849 | else |
---|
[534afcf] | 850 | { |
---|
| 851 | /* +option or -option */ |
---|
| 852 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 853 | n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"), |
---|
| 854 | argv[0], argv[optind][0], nextchar); |
---|
| 855 | #else |
---|
| 856 | fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), |
---|
| 857 | argv[0], argv[optind][0], nextchar); |
---|
| 858 | #endif |
---|
| 859 | } |
---|
| 860 | |
---|
| 861 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 862 | if (n >= 0) |
---|
| 863 | { |
---|
| 864 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 865 | __fwprintf (stderr, L"%s", buf); |
---|
| 866 | else |
---|
| 867 | fputs (buf, stderr); |
---|
| 868 | |
---|
| 869 | free (buf); |
---|
| 870 | } |
---|
| 871 | #endif |
---|
[5920cf1] | 872 | } |
---|
| 873 | nextchar = (char *) ""; |
---|
| 874 | optind++; |
---|
| 875 | optopt = 0; |
---|
| 876 | return '?'; |
---|
| 877 | } |
---|
| 878 | } |
---|
| 879 | |
---|
| 880 | /* Look at and handle the next short option-character. */ |
---|
| 881 | |
---|
| 882 | { |
---|
| 883 | char c = *nextchar++; |
---|
| 884 | char *temp = my_index (optstring, c); |
---|
| 885 | |
---|
| 886 | /* Increment `optind' when we start to process its last character. */ |
---|
| 887 | if (*nextchar == '\0') |
---|
| 888 | ++optind; |
---|
| 889 | |
---|
| 890 | if (temp == NULL || c == ':') |
---|
| 891 | { |
---|
[017fc13] | 892 | if (print_errors) |
---|
[5920cf1] | 893 | { |
---|
[534afcf] | 894 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 895 | char *buf; |
---|
| 896 | int n; |
---|
| 897 | #endif |
---|
| 898 | |
---|
[5920cf1] | 899 | if (posixly_correct) |
---|
[534afcf] | 900 | { |
---|
| 901 | /* 1003.2 specifies the format of this message. */ |
---|
| 902 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 903 | n = __asprintf (&buf, _("%s: illegal option -- %c\n"), |
---|
| 904 | argv[0], c); |
---|
| 905 | #else |
---|
| 906 | fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c); |
---|
| 907 | #endif |
---|
| 908 | } |
---|
[5920cf1] | 909 | else |
---|
[534afcf] | 910 | { |
---|
| 911 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 912 | n = __asprintf (&buf, _("%s: invalid option -- %c\n"), |
---|
| 913 | argv[0], c); |
---|
| 914 | #else |
---|
| 915 | fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c); |
---|
| 916 | #endif |
---|
| 917 | } |
---|
| 918 | |
---|
| 919 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 920 | if (n >= 0) |
---|
| 921 | { |
---|
| 922 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 923 | __fwprintf (stderr, L"%s", buf); |
---|
| 924 | else |
---|
| 925 | fputs (buf, stderr); |
---|
| 926 | |
---|
| 927 | free (buf); |
---|
| 928 | } |
---|
| 929 | #endif |
---|
[5920cf1] | 930 | } |
---|
| 931 | optopt = c; |
---|
| 932 | return '?'; |
---|
| 933 | } |
---|
| 934 | /* Convenience. Treat POSIX -W foo same as long option --foo */ |
---|
| 935 | if (temp[0] == 'W' && temp[1] == ';') |
---|
| 936 | { |
---|
| 937 | char *nameend; |
---|
| 938 | const struct option *p; |
---|
| 939 | const struct option *pfound = NULL; |
---|
| 940 | int exact = 0; |
---|
| 941 | int ambig = 0; |
---|
| 942 | int indfound = 0; |
---|
| 943 | int option_index; |
---|
| 944 | |
---|
| 945 | /* This is an option that requires an argument. */ |
---|
| 946 | if (*nextchar != '\0') |
---|
| 947 | { |
---|
| 948 | optarg = nextchar; |
---|
| 949 | /* If we end this ARGV-element by taking the rest as an arg, |
---|
| 950 | we must advance to the next element now. */ |
---|
| 951 | optind++; |
---|
| 952 | } |
---|
| 953 | else if (optind == argc) |
---|
| 954 | { |
---|
[017fc13] | 955 | if (print_errors) |
---|
[5920cf1] | 956 | { |
---|
| 957 | /* 1003.2 specifies the format of this message. */ |
---|
[534afcf] | 958 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 959 | char *buf; |
---|
| 960 | |
---|
| 961 | if (__asprintf (&buf, |
---|
| 962 | _("%s: option requires an argument -- %c\n"), |
---|
| 963 | argv[0], c) >= 0) |
---|
| 964 | { |
---|
| 965 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 966 | __fwprintf (stderr, L"%s", buf); |
---|
| 967 | else |
---|
| 968 | fputs (buf, stderr); |
---|
| 969 | |
---|
| 970 | free (buf); |
---|
| 971 | } |
---|
| 972 | #else |
---|
[5920cf1] | 973 | fprintf (stderr, _("%s: option requires an argument -- %c\n"), |
---|
| 974 | argv[0], c); |
---|
[534afcf] | 975 | #endif |
---|
[5920cf1] | 976 | } |
---|
| 977 | optopt = c; |
---|
| 978 | if (optstring[0] == ':') |
---|
| 979 | c = ':'; |
---|
| 980 | else |
---|
| 981 | c = '?'; |
---|
| 982 | return c; |
---|
| 983 | } |
---|
| 984 | else |
---|
| 985 | /* We already incremented `optind' once; |
---|
| 986 | increment it again when taking next ARGV-elt as argument. */ |
---|
| 987 | optarg = argv[optind++]; |
---|
| 988 | |
---|
| 989 | /* optarg is now the argument, see if it's in the |
---|
| 990 | table of longopts. */ |
---|
| 991 | |
---|
| 992 | for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++) |
---|
| 993 | /* Do nothing. */ ; |
---|
| 994 | |
---|
| 995 | /* Test all long options for either exact match |
---|
| 996 | or abbreviated matches. */ |
---|
| 997 | for (p = longopts, option_index = 0; p->name; p++, option_index++) |
---|
| 998 | if (!strncmp (p->name, nextchar, nameend - nextchar)) |
---|
| 999 | { |
---|
| 1000 | if ((unsigned int) (nameend - nextchar) == strlen (p->name)) |
---|
| 1001 | { |
---|
| 1002 | /* Exact match found. */ |
---|
| 1003 | pfound = p; |
---|
| 1004 | indfound = option_index; |
---|
| 1005 | exact = 1; |
---|
| 1006 | break; |
---|
[d1b1380] | 1007 | } |
---|
[5920cf1] | 1008 | else if (pfound == NULL) |
---|
| 1009 | { |
---|
| 1010 | /* First nonexact match found. */ |
---|
| 1011 | pfound = p; |
---|
| 1012 | indfound = option_index; |
---|
[d1b1380] | 1013 | } |
---|
[5920cf1] | 1014 | else |
---|
| 1015 | /* Second or later nonexact match found. */ |
---|
| 1016 | ambig = 1; |
---|
| 1017 | } |
---|
| 1018 | if (ambig && !exact) |
---|
| 1019 | { |
---|
[017fc13] | 1020 | if (print_errors) |
---|
[534afcf] | 1021 | { |
---|
| 1022 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 1023 | char *buf; |
---|
| 1024 | |
---|
| 1025 | if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"), |
---|
| 1026 | argv[0], argv[optind]) >= 0) |
---|
| 1027 | { |
---|
| 1028 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 1029 | __fwprintf (stderr, L"%s", buf); |
---|
| 1030 | else |
---|
| 1031 | fputs (buf, stderr); |
---|
| 1032 | |
---|
| 1033 | free (buf); |
---|
| 1034 | } |
---|
| 1035 | #else |
---|
| 1036 | fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), |
---|
| 1037 | argv[0], argv[optind]); |
---|
| 1038 | #endif |
---|
| 1039 | } |
---|
[5920cf1] | 1040 | nextchar += strlen (nextchar); |
---|
| 1041 | optind++; |
---|
| 1042 | return '?'; |
---|
| 1043 | } |
---|
| 1044 | if (pfound != NULL) |
---|
| 1045 | { |
---|
| 1046 | option_index = indfound; |
---|
| 1047 | if (*nameend) |
---|
| 1048 | { |
---|
| 1049 | /* Don't test has_arg with >, because some C compilers don't |
---|
| 1050 | allow it to be used on enums. */ |
---|
| 1051 | if (pfound->has_arg) |
---|
| 1052 | optarg = nameend + 1; |
---|
| 1053 | else |
---|
| 1054 | { |
---|
[017fc13] | 1055 | if (print_errors) |
---|
[534afcf] | 1056 | { |
---|
| 1057 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 1058 | char *buf; |
---|
| 1059 | |
---|
| 1060 | if (__asprintf (&buf, _("\ |
---|
| 1061 | %s: option `-W %s' doesn't allow an argument\n"), |
---|
| 1062 | argv[0], pfound->name) >= 0) |
---|
| 1063 | { |
---|
| 1064 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 1065 | __fwprintf (stderr, L"%s", buf); |
---|
| 1066 | else |
---|
| 1067 | fputs (buf, stderr); |
---|
| 1068 | |
---|
| 1069 | free (buf); |
---|
| 1070 | } |
---|
| 1071 | #else |
---|
| 1072 | fprintf (stderr, _("\ |
---|
[5920cf1] | 1073 | %s: option `-W %s' doesn't allow an argument\n"), |
---|
[534afcf] | 1074 | argv[0], pfound->name); |
---|
| 1075 | #endif |
---|
| 1076 | } |
---|
[5920cf1] | 1077 | |
---|
| 1078 | nextchar += strlen (nextchar); |
---|
| 1079 | return '?'; |
---|
| 1080 | } |
---|
| 1081 | } |
---|
| 1082 | else if (pfound->has_arg == 1) |
---|
| 1083 | { |
---|
| 1084 | if (optind < argc) |
---|
| 1085 | optarg = argv[optind++]; |
---|
| 1086 | else |
---|
| 1087 | { |
---|
[017fc13] | 1088 | if (print_errors) |
---|
[534afcf] | 1089 | { |
---|
| 1090 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 1091 | char *buf; |
---|
| 1092 | |
---|
| 1093 | if (__asprintf (&buf, _("\ |
---|
| 1094 | %s: option `%s' requires an argument\n"), |
---|
| 1095 | argv[0], argv[optind - 1]) >= 0) |
---|
| 1096 | { |
---|
| 1097 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 1098 | __fwprintf (stderr, L"%s", buf); |
---|
| 1099 | else |
---|
| 1100 | fputs (buf, stderr); |
---|
| 1101 | |
---|
| 1102 | free (buf); |
---|
| 1103 | } |
---|
| 1104 | #else |
---|
| 1105 | fprintf (stderr, |
---|
| 1106 | _("%s: option `%s' requires an argument\n"), |
---|
| 1107 | argv[0], argv[optind - 1]); |
---|
| 1108 | #endif |
---|
| 1109 | } |
---|
[5920cf1] | 1110 | nextchar += strlen (nextchar); |
---|
| 1111 | return optstring[0] == ':' ? ':' : '?'; |
---|
| 1112 | } |
---|
| 1113 | } |
---|
| 1114 | nextchar += strlen (nextchar); |
---|
| 1115 | if (longind != NULL) |
---|
| 1116 | *longind = option_index; |
---|
| 1117 | if (pfound->flag) |
---|
| 1118 | { |
---|
| 1119 | *(pfound->flag) = pfound->val; |
---|
| 1120 | return 0; |
---|
| 1121 | } |
---|
| 1122 | return pfound->val; |
---|
| 1123 | } |
---|
| 1124 | nextchar = NULL; |
---|
| 1125 | return 'W'; /* Let the application handle it. */ |
---|
| 1126 | } |
---|
| 1127 | if (temp[1] == ':') |
---|
| 1128 | { |
---|
| 1129 | if (temp[2] == ':') |
---|
| 1130 | { |
---|
| 1131 | /* This is an option that accepts an argument optionally. */ |
---|
| 1132 | if (*nextchar != '\0') |
---|
| 1133 | { |
---|
| 1134 | optarg = nextchar; |
---|
| 1135 | optind++; |
---|
| 1136 | } |
---|
| 1137 | else |
---|
| 1138 | optarg = NULL; |
---|
| 1139 | nextchar = NULL; |
---|
| 1140 | } |
---|
| 1141 | else |
---|
| 1142 | { |
---|
| 1143 | /* This is an option that requires an argument. */ |
---|
| 1144 | if (*nextchar != '\0') |
---|
| 1145 | { |
---|
| 1146 | optarg = nextchar; |
---|
| 1147 | /* If we end this ARGV-element by taking the rest as an arg, |
---|
| 1148 | we must advance to the next element now. */ |
---|
| 1149 | optind++; |
---|
| 1150 | } |
---|
| 1151 | else if (optind == argc) |
---|
| 1152 | { |
---|
[017fc13] | 1153 | if (print_errors) |
---|
[5920cf1] | 1154 | { |
---|
| 1155 | /* 1003.2 specifies the format of this message. */ |
---|
[534afcf] | 1156 | #if defined _LIBC && defined USE_IN_LIBIO |
---|
| 1157 | char *buf; |
---|
| 1158 | |
---|
| 1159 | if (__asprintf (&buf, _("\ |
---|
| 1160 | %s: option requires an argument -- %c\n"), |
---|
| 1161 | argv[0], c) >= 0) |
---|
| 1162 | { |
---|
| 1163 | if (_IO_fwide (stderr, 0) > 0) |
---|
| 1164 | __fwprintf (stderr, L"%s", buf); |
---|
| 1165 | else |
---|
| 1166 | fputs (buf, stderr); |
---|
| 1167 | |
---|
| 1168 | free (buf); |
---|
| 1169 | } |
---|
| 1170 | #else |
---|
[5920cf1] | 1171 | fprintf (stderr, |
---|
[017fc13] | 1172 | _("%s: option requires an argument -- %c\n"), |
---|
| 1173 | argv[0], c); |
---|
[534afcf] | 1174 | #endif |
---|
[5920cf1] | 1175 | } |
---|
| 1176 | optopt = c; |
---|
| 1177 | if (optstring[0] == ':') |
---|
| 1178 | c = ':'; |
---|
| 1179 | else |
---|
| 1180 | c = '?'; |
---|
| 1181 | } |
---|
| 1182 | else |
---|
| 1183 | /* We already incremented `optind' once; |
---|
| 1184 | increment it again when taking next ARGV-elt as argument. */ |
---|
| 1185 | optarg = argv[optind++]; |
---|
| 1186 | nextchar = NULL; |
---|
| 1187 | } |
---|
| 1188 | } |
---|
| 1189 | return c; |
---|
| 1190 | } |
---|
| 1191 | } |
---|
| 1192 | |
---|
| 1193 | int |
---|
| 1194 | getopt (argc, argv, optstring) |
---|
| 1195 | int argc; |
---|
| 1196 | char *const *argv; |
---|
| 1197 | const char *optstring; |
---|
| 1198 | { |
---|
| 1199 | return _getopt_internal (argc, argv, optstring, |
---|
| 1200 | (const struct option *) 0, |
---|
| 1201 | (int *) 0, |
---|
| 1202 | 0); |
---|
| 1203 | } |
---|
| 1204 | |
---|
| 1205 | #endif /* Not ELIDE_CODE. */ |
---|
| 1206 | |
---|
| 1207 | #ifdef TEST |
---|
| 1208 | |
---|
| 1209 | /* Compile with -DTEST to make an executable for use in testing |
---|
| 1210 | the above definition of `getopt'. */ |
---|
| 1211 | |
---|
| 1212 | int |
---|
| 1213 | main (argc, argv) |
---|
| 1214 | int argc; |
---|
| 1215 | char **argv; |
---|
| 1216 | { |
---|
| 1217 | int c; |
---|
| 1218 | int digit_optind = 0; |
---|
| 1219 | |
---|
| 1220 | while (1) |
---|
| 1221 | { |
---|
| 1222 | int this_option_optind = optind ? optind : 1; |
---|
| 1223 | |
---|
| 1224 | c = getopt (argc, argv, "abc:d:0123456789"); |
---|
| 1225 | if (c == -1) |
---|
| 1226 | break; |
---|
| 1227 | |
---|
| 1228 | switch (c) |
---|
| 1229 | { |
---|
| 1230 | case '0': |
---|
| 1231 | case '1': |
---|
| 1232 | case '2': |
---|
| 1233 | case '3': |
---|
| 1234 | case '4': |
---|
| 1235 | case '5': |
---|
| 1236 | case '6': |
---|
| 1237 | case '7': |
---|
| 1238 | case '8': |
---|
| 1239 | case '9': |
---|
| 1240 | if (digit_optind != 0 && digit_optind != this_option_optind) |
---|
| 1241 | printf ("digits occur in two different argv-elements.\n"); |
---|
| 1242 | digit_optind = this_option_optind; |
---|
| 1243 | printf ("option %c\n", c); |
---|
| 1244 | break; |
---|
| 1245 | |
---|
| 1246 | case 'a': |
---|
| 1247 | printf ("option a\n"); |
---|
| 1248 | break; |
---|
| 1249 | |
---|
| 1250 | case 'b': |
---|
| 1251 | printf ("option b\n"); |
---|
| 1252 | break; |
---|
| 1253 | |
---|
| 1254 | case 'c': |
---|
| 1255 | printf ("option c with value `%s'\n", optarg); |
---|
| 1256 | break; |
---|
| 1257 | |
---|
| 1258 | case '?': |
---|
| 1259 | break; |
---|
| 1260 | |
---|
| 1261 | default: |
---|
| 1262 | printf ("?? getopt returned character code 0%o ??\n", c); |
---|
[d1b1380] | 1263 | } |
---|
[5920cf1] | 1264 | } |
---|
| 1265 | |
---|
| 1266 | if (optind < argc) |
---|
| 1267 | { |
---|
| 1268 | printf ("non-option ARGV-elements: "); |
---|
| 1269 | while (optind < argc) |
---|
| 1270 | printf ("%s ", argv[optind++]); |
---|
| 1271 | printf ("\n"); |
---|
| 1272 | } |
---|
| 1273 | |
---|
| 1274 | exit (0); |
---|
[d1b1380] | 1275 | } |
---|
[5920cf1] | 1276 | |
---|
| 1277 | #endif /* TEST */ |
---|