1 files changed, 92 insertions, 0 deletions
diff --git a/bin/pax/getoldopt.c b/bin/pax/getoldopt.c
new file mode 100644
index 0000000..2d02e7e
--- /dev/null
+++ b/bin/pax/getoldopt.c
@@ -0,0 +1,92 @@
+/*	$NetBSD: getoldopt.c,v 1.23 2012/08/09 11:05:59 christos Exp $	*/
+
+/*
+ * Plug-compatible replacement for getopt() for parsing tar-like
+ * arguments.  If the first argument begins with "-", it uses getopt;
+ * otherwise, it uses the old rules used by tar, dump, and ps.
+ *
+ * Written 25 August 1985 by John Gilmore (ihnp4!hoptoad!gnu) and placed
+ * in the Public Domain for your edification and enjoyment.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+#if !defined(lint)
+__RCSID("$NetBSD: getoldopt.c,v 1.23 2012/08/09 11:05:59 christos Exp $");
+#endif /* not lint */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "compat_getopt.h"
+#else
+#include <getopt.h>
+#endif
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/stat.h>
+#include "pax.h"
+#include "extern.h"
+
+int
+getoldopt(int argc, char **argv, const char *optstring,
+	struct option *longopts, int *idx)
+{
+	static char	*key;		/* Points to next keyletter */
+	static char	use_getopt;	/* !=0 if argv[1][0] was '-' */
+	char		c;
+	char		*place;
+
+	optarg = NULL;
+
+	if (key == NULL) {		/* First time */
+		if (argc < 2) return -1;
+		key = argv[1];
+		if (*key == '-')
+			use_getopt++;
+		else
+			optind = 2;
+	}
+
+	c = '\0';
+	if (!use_getopt) {
+		c = *key++;
+		if (c == '\0') {
+			key--;
+			use_getopt = 1;
+		}
+	}
+	if (use_getopt) {
+		if (longopts != NULL) {
+			return getopt_long(argc, argv, optstring,
+			    longopts, idx);
+		} else {
+			return getopt(argc, argv, optstring);
+		}
+	}
+
+	place = strchr(optstring, c);
+
+	if (place == NULL || c == ':') {
+		fprintf(stderr, "%s: unknown option %c\n", argv[0], c);
+		return '?';
+	}
+
+	place++;
+	if (*place == ':') {
+		if (optind < argc) {
+			optarg = argv[optind];
+			optind++;
+		} else {
+			fprintf(stderr, "%s: %c argument missing\n",
+				argv[0], c);
+			return '?';
+		}
+	}
+
+	return c;
+}