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/* mygetopt.c - Simple getopt() like function
* Copyright (C) 1999 Michael Roth <mroth@gnupg.de>
*
* This file is part of pgpgpg.
*
* pgpgpg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* pgpgpg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include "includes.h"
#include "mygetopt.h"
char *mynextchar = NULL;
char *myoptarg = NULL;
int myoptind = 1;
int myoptopt = 0;
int mygetopt(int argc, char * const argv[], const char *optstring)
{
char *option;
/*
DEBUG(("mygetopt called: optstring: '%s' mynextchar: '%s' myoptarg: '%s' myoptind: %d",
optstring, mynextchar, myoptarg, myoptind))
*/
if (myoptind >= argc)
return EOF;
if (!mynextchar)
{
mynextchar = argv[myoptind];
if (*mynextchar == '-')
{
mynextchar++;
}
else
{
myoptarg = mynextchar;
myoptind++;
mynextchar = NULL;
return 1;
}
}
if (*mynextchar == ':')
{
myoptopt = ':';
return '?';
}
if ((option=strchr(optstring, *mynextchar)))
{
if (option[1] == ':')
{
/* Option with an argument */
if (mynextchar[1])
{
myoptarg = mynextchar + 1;
mynextchar = NULL;
myoptind++;
return *option;
}
else
{
if (++myoptind >= argc)
{
myoptopt = *option;
return ':';
}
myoptarg = argv[myoptind++];
mynextchar = NULL;
return *option;
}
}
else
{
/* Option without an argument */
mynextchar++;
if (!*mynextchar)
{
mynextchar = NULL;
myoptind++;
}
return *option;
}
}
myoptopt = *mynextchar;
return '?';
}
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