initial import of NetBSD tree

1 files changed, 126 insertions, 0 deletions

diff --git a/usr.bin/skey/skey.c b/usr.bin/skey/skey.c
new file mode 100644
index 00000000000..a3cbf078d36
--- /dev/null
+++ b/usr.bin/skey/skey.c
@@ -0,0 +1,126 @@
+/*
+ * S/KEY v1.1b (skey.c)
+ *
+ * Authors:
+ *          Neil M. Haller <nmh@thumper.bellcore.com>
+ *          Philip R. Karn <karn@chicago.qualcomm.com>
+ *          John S. Walden <jsw@thumper.bellcore.com>
+ *          Scott Chasin <chasin@crimelab.com>
+ *
+ *
+ * Stand-alone program for computing responses to S/Key challenges.
+ * Takes the iteration count and seed as command line args, prompts
+ * for the user's key, and produces both word and hex format responses.
+ *
+ * Usage example:
+ *	>skey 88 ka9q2
+ *	Enter password:
+ *	OMEN US HORN OMIT BACK AHOY
+ *	>
+ *
+ * $Id: skey.c,v 1.1 1995/10/18 08:46:07 deraadt Exp $
+ */
+
+#include <sys/cdefs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sgtty.h>
+#include "md4.h"
+#include "skey.h"
+
+void    usage __P((char *));
+
+int
+main(argc, argv)
+	int	argc;
+	char	*argv[];
+{
+	int     n, cnt, i, pass = 0;
+	char    passwd[256], key[8], buf[33], *seed, *slash;
+	extern int optind;
+	extern char *optarg;
+
+	cnt = 1;
+
+	while ((i = getopt(argc, argv, "n:p:")) != EOF) {
+		switch (i) {
+		case 'n':
+			cnt = atoi(optarg);
+			break;
+		case 'p':
+			strcpy(passwd, optarg);
+			pass = 1;
+			break;
+		}
+	}
+
+	/* could be in the form <number>/<seed> */
+
+	if (argc <= optind + 1) {
+		/* look for / in it */
+		if (argc <= optind)
+			usage(argv[0]);
+		slash = strchr(argv[optind], '/');
+		if (slash == NULL)
+			usage(argv[0]);
+		*slash++ = '\0';
+		seed = slash;
+
+		if ((n = atoi(argv[optind])) < 0) {
+			fprintf(stderr, "%s not positive\n", argv[optind]);
+			usage(argv[0]);
+		}
+	} else {
+
+		if ((n = atoi(argv[optind])) < 0) {
+			fprintf(stderr, "%s not positive\n", argv[optind]);
+			usage(argv[0]);
+		}
+		seed = argv[++optind];
+	}
+
+	/* Get user's secret password */
+	if (!pass) {
+		fprintf(stderr, "Enter secret password: ");
+		readpass(passwd, sizeof(passwd));
+	}
+	rip(passwd);
+
+	/* Crunch seed and password into starting key */
+	if (keycrunch(key, seed, passwd) != 0) {
+		fprintf(stderr, "%s: key crunch failed\n", argv[0]);
+		exit(1);
+	}
+	if (cnt == 1) {
+		while (n-- != 0)
+			f(key);
+		printf("%s\n", btoe(buf, key));
+#ifdef	HEXIN
+		printf("%s\n", put8(buf, key));
+#endif
+	} else {
+		for (i = 0; i <= n - cnt; i++)
+			f(key);
+		for (; i <= n; i++) {
+#ifdef	HEXIN
+			printf("%d: %-29s  %s\n", i, btoe(buf, key), put8(buf, key));
+#else
+			printf("%d: %-29s\n", i, btoe(buf, key));
+#endif
+			f(key);
+		}
+	}
+	exit(0);
+}
+
+void
+usage(s)
+	char   *s;
+{
+
+	fprintf(stderr,
+	    "Usage: %s [-n count] [-p password ] sequence# [/] key\n", s);
+	exit(1);
+}