Ultrix-3.1/src/cmd/getopt.c

/**********************************************************************
 *   Copyright (c) Digital Equipment Corporation 1984, 1985, 1986.    *
 *   All Rights Reserved. 					      *
 *   Reference "/usr/src/COPYRIGHT" for applicable restrictions.      *
 **********************************************************************/


static char Sccsid[] = "@(#)getopt.c 3.0 4/21/86";

/* System 5 versions		*/
/*	@(#)getopt.c	1.4	*/
/*	3.0 SID #	1.1	*/

#include	<stdio.h>
char	*strchr();

main(argc, argv)
int argc;
char **argv;
{
	extern	int optind;
	extern	char *optarg;
	register int	c;
	int	errflg = 0;
	char	tmpstr[4];
	char	outstr[5120];
	char	*goarg;

	if(argc < 2) {
		fputs("usage: getopt legal-args $*\n", stderr);
		exit(2);
	}

	goarg = argv[1];
	argv[1] = argv[0];
	argv++;
	argc--;

	while((c=getopt(argc, argv, goarg)) != EOF) {
		if(c=='?') {
			errflg++;
			continue;
		}

		tmpstr[0] = '-';
		tmpstr[1] = c;
		tmpstr[2] = ' ';
		tmpstr[3] = '\0';

		strcat(outstr, tmpstr);

		if(*(strchr(goarg, c)+1) == ':') {
			strcat(outstr, optarg);
			strcat(outstr, " ");
		}
	}

	if(errflg) {
		exit(2);
	}

	strcat(outstr, "-- ");
	while(optind < argc) {
		strcat(outstr, argv[optind++]);
		strcat(outstr, " ");
	}

	printf("%s\n", outstr);
	exit(0);
}