busybox

/*

 * getopt.c - Enhanced implementation of BSD getopt(1)

 *   Copyright (c) 1997, 1998, 1999, 2000  Frodo Looijaard <frodol@dds.nl>

 *

 *   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.

 */

​

/*

 * Version 1.0-b4: Tue Sep 23 1997. First public release.

 * Version 1.0: Wed Nov 19 1997.

 *   Bumped up the version number to 1.0

 *   Fixed minor typo (CSH instead of TCSH)

 * Version 1.0.1: Tue Jun 3 1998

 *   Fixed sizeof instead of strlen bug

 *   Bumped up the version number to 1.0.1

 * Version 1.0.2: Thu Jun 11 1998 (not present)

 *   Fixed gcc-2.8.1 warnings

 *   Fixed --version/-V option (not present)

 * Version 1.0.5: Tue Jun 22 1999

 *   Make -u option work (not present)

 * Version 1.0.6: Tue Jun 27 2000

 *   No important changes

 * Version 1.1.0: Tue Jun 30 2000

 *   Added NLS support (partly written by Arkadiusz Mi<B6>kiewicz

 *     <misiek@misiek.eu.org>)

 * Ported to Busybox - Alfred M. Szmidt <ams@trillian.itslinux.org>

 *  Removed --version/-V and --help/-h in

 *  Removed prase_error(), using errorMsg() from Busybox instead

 *  Replaced our_malloc with xmalloc and our_realloc with xrealloc

 *

 */

​

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <ctype.h>

#include <getopt.h>

​

#include "busybox.h"

​

/* NON_OPT is the code that is returned when a non-option is found in '+'

   mode */

#define NON_OPT 1

/* LONG_OPT is the code that is returned when a long option is found. */

#define LONG_OPT 2

​

/* The shells recognized. */

typedef enum {BASH,TCSH} shell_t;

​

​