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/* Declarations for getopt. |
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Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc. |
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This file is part of the GNU C Library. Its master source is NOT part of |
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the C library, however. The master source lives in /gd/gnu/lib. |
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The GNU C Library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Library General Public License as |
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published by the Free Software Foundation; either version 2 of the |
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License, or (at your option) any later version. |
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The GNU C Library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Library General Public License for more details. |
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You should have received a copy of the GNU Library General Public |
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License along with the GNU C Library; see the file COPYING.LIB. If |
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not, write to the Free Software Foundation, Inc., 675 Mass Ave, |
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Cambridge, MA 02139, USA. */ |
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#ifndef _GETOPT_H |
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#define _GETOPT_H 1 |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/* For communication from `getopt' to the caller. |
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When `getopt' finds an option that takes an argument, |
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the argument value is returned here. |
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Also, when `ordering' is RETURN_IN_ORDER, |
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each non-option ARGV-element is returned here. */ |
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extern char *optarg; |
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/* Index in ARGV of the next element to be scanned. |
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This is used for communication to and from the caller |
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and for communication between successive calls to `getopt'. |
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On entry to `getopt', zero means this is the first call; initialize. |
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When `getopt' returns EOF, this is the index of the first of the |
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non-option elements that the caller should itself scan. |
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Otherwise, `optind' communicates from one call to the next |
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how much of ARGV has been scanned so far. */ |
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extern int optind; |
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/* Callers store zero here to inhibit the error message `getopt' prints |
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for unrecognized options. */ |
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extern int opterr; |
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/* Set to an option character which was unrecognized. */ |
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extern int optopt; |
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/* Describe the long-named options requested by the application. |
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The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector |
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of `struct option' terminated by an element containing a name which is |
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zero. |
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The field `has_arg' is: |
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no_argument (or 0) if the option does not take an argument, |
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required_argument (or 1) if the option requires an argument, |
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optional_argument (or 2) if the option takes an optional argument. |
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If the field `flag' is not NULL, it points to a variable that is set |
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to the value given in the field `val' when the option is found, but |
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left unchanged if the option is not found. |
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To have a long-named option do something other than set an `int' to |
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a compiled-in constant, such as set a value from `optarg', set the |
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option's `flag' field to zero and its `val' field to a nonzero |
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value (the equivalent single-letter option character, if there is |
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one). For long options that have a zero `flag' field, `getopt' |
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returns the contents of the `val' field. */ |
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struct option |
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{ |
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#if defined (__STDC__) && __STDC__ |
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const char *name; |
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#else |
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char *name; |
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#endif |
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/* has_arg can't be an enum because some compilers complain about |
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type mismatches in all the code that assumes it is an int. */ |
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int has_arg; |
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int *flag; |
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int val; |
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/*- |
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* Copyright (c) 2000 The NetBSD Foundation, Inc. |
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* All rights reserved. |
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* |
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* This code is derived from software contributed to The NetBSD Foundation |
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* by Dieter Baron and Thomas Klausner. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef _GETOPT_H_ |
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#define _GETOPT_H_ |
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/* |
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* GNU-like getopt_long() and 4.4BSD getsubopt()/optreset extensions |
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*/ |
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#define no_argument 0 |
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#define required_argument 1 |
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#define optional_argument 2 |
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struct option { |
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/* name of long option */ |
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const char *name; |
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/* |
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* one of no_argument, required_argument, and optional_argument: |
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* whether option takes an argument |
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*/ |
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int has_arg; |
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/* if not NULL, set *flag to val when option found */ |
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int *flag; |
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/* if flag not NULL, value to set *flag to; else return value */ |
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int val; |
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}; |
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/* Names for the values of the `has_arg' field of `struct option'. */ |
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#define no_argument 0 |
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#define required_argument 1 |
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#define optional_argument 2 |
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#if defined (__STDC__) && __STDC__ |
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#ifdef __GNU_LIBRARY__ |
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/* Many other libraries have conflicting prototypes for getopt, with |
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differences in the consts, in stdlib.h. To avoid compilation |
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errors, only prototype getopt for the GNU C library. */ |
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extern int getopt (int argc, char *const *argv, const char *shortopts); |
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#else /* not __GNU_LIBRARY__ */ |
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extern int getopt (); |
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#endif /* __GNU_LIBRARY__ */ |
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extern int getopt_long (int argc, char *const *argv, const char *shortopts, |
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const struct option *longopts, int *longind); |
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extern int getopt_long_only (int argc, char *const *argv, |
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const char *shortopts, |
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const struct option *longopts, int *longind); |
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/* Internal only. Users should not call this directly. */ |
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extern int _getopt_internal (int argc, char *const *argv, |
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const char *shortopts, |
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const struct option *longopts, int *longind, |
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int long_only); |
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#else /* not __STDC__ */ |
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extern int getopt (); |
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extern int getopt_long (); |
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extern int getopt_long_only (); |
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extern int _getopt_internal (); |
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#endif /* __STDC__ */ |
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#ifdef __cplusplus |
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} |
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int getopt_long(int, char * const *, const char *, |
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const struct option *, int *); |
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int getopt_long_only(int, char * const *, const char *, |
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const struct option *, int *); |
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#ifndef _GETOPT_DEFINED_ |
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#define _GETOPT_DEFINED_ |
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int getopt(int, char * const *, const char *); |
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int getsubopt(char **, char * const *, char **); |
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extern char *optarg; /* getopt(3) external variables */ |
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extern int opterr; |
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extern int optind; |
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extern int optopt; |
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extern int optreset; |
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extern char *suboptarg; /* getsubopt(3) external variable */ |
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#endif |
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#endif /* _GETOPT_H */ |
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#endif /* !_GETOPT_H_ */ |
tbullock@comlore.com
há 13 anos