text: /* Copyright(c) Microsoft Corporation.All rights reserved. * /
  /*
  * Copyright (c) 1987, 1993, 1994
  *      The Regents of the University of California.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
  *    must display the following acknowledgement:
  *      This product includes software developed by the University of
  *      California, Berkeley and its contributors.
  * 4. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
  
  #define _TCHAR char
  #define _T(x) x
  #define _tcschr strchr
  #define _ftprintf fprintf
  
  #if defined(LIBC_SCCS) && !defined(lint)
  static char sccsid[] = "@(#)getopt.c    8.2 (Berkeley) 4/2/94";
  #endif /* LIBC_SCCS and not lint */
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  int     opterr = 1,             /* if error message should be printed */
  optind = 1,             /* index into parent argv vector */
  optopt,                 /* character checked for validity */
  optreset;               /* reset getopt */
  _TCHAR  *optarg;                /* argument associated with option */
  
  #define BADCH   (int)'?'
  #define BADARG  (int)':'
  #define EMSG    _T("")
  
  								/*
  								* getopt --
  								*      Parse argc/argv argument vector.
  								*/
  int
  getopt(
  	int nargc,
  	_TCHAR * const *nargv,
  	const _TCHAR *ostr)
  {
  	_TCHAR *__progname = "For this program"; /* extern _TCHAR *__progname;*/
  	static _TCHAR *place = EMSG;              /* option letter processing */
  	_TCHAR *oli;                              /* option letter list index */
  
  	if (optreset || !*place) {              /* update scanning pointer */
  		optreset = 0;
  		if (optind >= nargc || *(place = nargv[optind]) != '-') {
  			place = EMSG;
  			return (EOF);
  		}
  		if (place[1] && *++place == '-') {      /* found "--" */
  			++optind;
  			place = EMSG;
  			return (EOF);
  		}
  	}                                       /* option letter okay? */
  	if ((optopt = (int)*place++) == (int)':' ||
  		!(oli = _tcschr(ostr, optopt))) {
  		/*
  		* if the user didn't specify '-' as an option,
  		* assume it means EOF.
  		*/
  		if (optopt == (int)'-')
  			return (EOF);
  		if (!*place)
  			++optind;
  		if (opterr && *ostr != ':')
  			(void)_ftprintf(stderr,
  				_T("%s: illegal option -- %c\n"), __progname, optopt);
  		return (BADCH);
  	}
  	if (*++oli != ':') {                    /* don't need argument */
  		optarg = NULL;
  		if (!*place)
  			++optind;
  	}
  	else {                                  /* need an argument */
  		if (*place)                     /* no white space */
  			optarg = place;
  		else if (nargc <= ++optind) {   /* no arg */
  			place = EMSG;
  			if (*ostr == ':')
  				return (BADARG);
  			if (opterr)
  				(void)_ftprintf(stderr,
  					_T("%s: option requires an argument -- %c\n"),
  					__progname, optopt);
  			return (BADCH);
  		}
  		else                            /* white space */
  			optarg = nargv[optind];
  		place = EMSG;
  		++optind;
  	}
  	return (optopt);                        /* dump back option letter */
  }
  