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my_getopt_long.h
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00001 /*********************************************************************/
00002 // dar - disk archive - a backup/restoration program
00003 // Copyright (C) 2002-2052 Denis Corbin
00004 //
00005 // This program is free software; you can redistribute it and/or
00006 // modify it under the terms of the GNU General Public License
00007 // as published by the Free Software Foundation; either version 2
00008 // of the License, or (at your option) any later version.
00009 //
00010 // This program is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 // GNU General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU General Public License
00016 // along with this program; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00018 //
00019 // to contact the author : http://dar.linux.free.fr/email.html
00020 /*********************************************************************/
00021 // $Id: my_getopt_long.h,v 1.4 2011/01/09 17:25:58 edrusb Rel $
00022 //
00023 /*********************************************************************/
00024 
00028 
00029 
00030 #ifndef MY_GETOPT_LONG_H
00031 #define MY_GETOPT_LONG_H
00032 
00033 // getopt may be declated in <unistd.h> on systems like FreeBSD.
00034 // if you want to use libgnugetopt you need to include <getopt.h>
00035 // on this system. Thus a conflict appear because the getopt is
00036 // declared twice. To avoid you either have not to include <unistd.h>
00037 // or not to include <getopt.h>. But neither the first nor the
00038 // second is acceptable, because we need other stuf declared in
00039 // <unistd.h> (open() & so on) and stuf declared in <getopt.h>
00040 // (like getopt_long which is gnu typical).
00041 //
00042 // to solve this problem, I have extracted the gnu getopt_long
00043 // as declared under Linux in the present file. When getopt is
00044 // declared in <unistd.h> it is still possible to include the
00045 // current file in place of <getopt.h>, to get getopt_long available
00046 //
00047 // at linking time, if libgnugetopt is available we use it
00048 //
00049 // see getopt_decision.hpp
00050 
00051 # define no_argument            0
00052 # define required_argument      1
00053 # define optional_argument      2
00054 
00055 struct option
00056 {
00057 # if defined __STDC__ && __STDC__
00058   const char *name;
00059 # else
00060   char *name;
00061 # endif
00062   /* has_arg can't be an enum because some compilers complain about
00063      type mismatches in all the code that assumes it is an int.  */
00064   int has_arg;
00065   int *flag;
00066   int val;
00067 };
00068 
00069 extern int getopt_long (int __argc, char *const *__argv, const char *__shortopts,
00070                         const struct option *__longopts, int *__longind);
00071 
00072 
00073 #endif
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