my_getopt_long.h

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 : dar.linux@free.fr
00020 /*********************************************************************/
00021 // $Id: my_getopt_long.h,v 1.2 2004/03/15 14:31:52 edrusb Rel $
00022 //
00023 /*********************************************************************/
00024 
00025 #ifndef MY_GETOPT_LONG_H
00026 #define MY_GETOPT_LONG_H
00027 
00028 // getopt may be declated in <unistd.h> on systems like FreeBSD.
00029 // if you want to use libgnugetopt you need to include <getopt.h>
00030 // on this system. Thus a conflict appear because the getopt is
00031 // declared twice. To avoid you either have not to include <unistd.h>
00032 // or not to include <getopt.h>. But neither the first nor the
00033 // second is acceptable, because we need other stuf declared in
00034 // <unistd.h> (open() & so on) and stuf declared in <getopt.h>
00035 // (like getopt_long which is gnu typical).
00036 //
00037 // to solve this problem, I have extracted the gnu getopt_long
00038 // as declared under Linux in the present file. When getopt is
00039 // declared in <unistd.h> it is still possible to include the
00040 // current file in place of <getopt.h>, to get getopt_long available
00041 //
00042 // at linking time, if libgnugetopt is available we use it
00043 //
00044 // see getopt_decision.hpp
00045 
00046 # define no_argument            0
00047 # define required_argument      1
00048 # define optional_argument      2
00049 
00050 struct option
00051 {
00052 # if defined __STDC__ && __STDC__
00053   const char *name;
00054 # else
00055   char *name;
00056 # endif
00057   /* has_arg can't be an enum because some compilers complain about
00058      type mismatches in all the code that assumes it is an int.  */
00059   int has_arg;
00060   int *flag;
00061   int val;
00062 };
00063 
00064 extern int getopt_long (int __argc, char *const *__argv, const char *__shortopts,
00065                         const struct option *__longopts, int *__longind);
00066 
00067 
00068 #endif
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