GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: bin/pax/getoldopt.c Lines: 22 27 81.5 %
Date: 2016-12-06 Branches: 13 16 81.3 %

Line Branch Exec Source
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/*	$OpenBSD: getoldopt.c,v 1.9 2009/10/27 23:59:22 deraadt Exp $	*/
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/*	$NetBSD: getoldopt.c,v 1.3 1995/03/21 09:07:28 cgd Exp $	*/
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/*
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 * Plug-compatible replacement for getopt() for parsing tar-like
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 * arguments.  If the first argument begins with "-", it uses getopt;
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 * otherwise, it uses the old rules used by tar, dump, and ps.
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 *
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 * Written 25 August 1985 by John Gilmore (ihnp4!hoptoad!gnu) and placed
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 * in the Public Domain for your edification and enjoyment.
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 */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "pax.h"
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#include "extern.h"
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int
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getoldopt(int argc, char **argv, const char *optstring)
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{
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	static char	*key;		/* Points to next keyletter */
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	static char	use_getopt;	/* !=0 if argv[1][0] was '-' */
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	char		c;
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	char		*place;
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	optarg = NULL;
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	if (key == NULL) {		/* First time */
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		if (argc < 2)
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			return (-1);
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		key = argv[1];
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		if (*key == '-')
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			use_getopt++;
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		else
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			optind = 2;
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	}
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	if (use_getopt)
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		return (getopt(argc, argv, optstring));
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	c = *key++;
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	if (c == '\0') {
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		key--;
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		return (-1);
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	}
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	place = strchr(optstring, c);
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	if (place == NULL || c == ':') {
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		fprintf(stderr, "%s: unknown option %c\n", argv[0], c);
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		return ('?');
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	}
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	place++;
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	if (*place == ':') {
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		if (optind < argc) {
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			optarg = argv[optind];
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			optind++;
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		} else {
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			fprintf(stderr, "%s: %c argument missing\n",
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				argv[0], c);
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			return ('?');
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		}
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	}
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	return (c);
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}