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fips
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fips20
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cmdl_arg.cpp
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1997-12-22
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/*
FIPS - the First nondestructive Interactive Partition Splitting program
Module cmdl_arg.cpp
RCS - Header:
$Header: c:/daten/fips/source/main/RCS/cmdl_arg.cpp 1.4 1995/01/19 00:00:51 schaefer Exp schaefer $
Copyright (C) 1993 Arno Schaefer
This program 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.
This program 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., 675 Mass Ave, Cambridge, MA 02139, USA.
Report problems and direct all questions to:
schaefer@rbg.informatik.th-darmstadt.de
*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "global.h"
#include "getopt.h"
/* ----------------------------------------------------------------------- */
/* Replacement for atoi */
/* ----------------------------------------------------------------------- */
static int atoint (char *string)
{
long int value = 0;
while (isdigit (*string))
{
value = value * 10 + (*string - '0');
if (value > 32767) return (-1);
string++;
}
if (*string != '\0') return (-1);
return (int) value;
}
/* ----------------------------------------------------------------------- */
/* Usage instructions */
/* ----------------------------------------------------------------------- */
static void usage (void)
{
printf ("\nFIPS [-t] [-d] [-h|-?] [-n<num>]:\n\n");
printf ("-t : test mode (no writes to disk)\n");
printf ("-d : debug mode\n");
printf ("-h/-? : this help page\n");
printf ("-n<num> : select drive <num> - valid values: 128 to 255\n");
}
/* ----------------------------------------------------------------------- */
/* Process commandline parameters */
/* ----------------------------------------------------------------------- */
void evaluate_argument_vector (int argc, char *argv[])
{
int c;
opterr = 0;
while ((c = getopt (argc, argv, ":htdn:")) >= 0)
{
switch (c)
{
case 't':
global.test_mode = true;
break;
case 'd':
global.debug_mode = true;
break;
case 'h':
usage ();
exit (1);
case 'n':
global.drive_number_cmdline = atoint (optarg);
if
(
global.drive_number_cmdline < 0x80
|| global.drive_number_cmdline > 0xff
)
{
fprintf
(
stderr,
"\nInvalid argument: %s\n",
optarg
);
usage ();
exit (-1);
}
break;
case ':':
fprintf
(
stderr,
"\nSwitch %c requires an argument\n",
optopt
);
usage ();
exit (-1);
case '?':
if (optopt != '?')
fprintf
(
stderr,
"\nInvalid Commandline Parameter: %s\n",
argv[optind - 1]
);
usage ();
exit (-1);
} /* switch */
} /* while */
}