initial import of NetBSD tree

1 files changed, 141 insertions, 0 deletions

diff --git a/usr.sbin/rdate/rdate.c b/usr.sbin/rdate/rdate.c
new file mode 100644
index 00000000000..f1adbe1ebdf
--- /dev/null
+++ b/usr.sbin/rdate/rdate.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 1994 Christos Zoulas
+ * 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 Christos Zoulas.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *
+ *	$Id: rdate.c,v 1.1 1995/10/18 08:48:04 deraadt Exp $
+ */
+
+/*
+ * rdate.c: Set the date from the specified host
+ * 
+ * 	Uses the rfc868 time protocol at socket 37.
+ *	Time is returned as the number of seconds since
+ *	midnight January 1st 1900.
+ */
+#ifndef lint
+static char rcsid[] = "$Id: rdate.c,v 1.1 1995/10/18 08:48:04 deraadt Exp $";
+#endif				/* lint */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include <netinet/in.h>
+
+/* seconds from midnight Jan 1900 - 1970 */
+#if __STDC__
+#define DIFFERENCE 2208988800UL
+#else
+#define DIFFERENCE 2208988800
+#endif
+
+int
+main(argc, argv)
+	int             argc;
+	char           *argv[];
+{
+	int             pr = 0, silent = 0, s;
+	time_t          tim;
+	char           *hname;
+	struct hostent *hp;
+	struct protoent *pp, ppp;
+	struct servent *sp, ssp;
+	struct sockaddr_in sa;
+	extern char    *__progname;
+	extern int      optind;
+	int             c;
+
+	while ((c = getopt(argc, argv, "ps")) != -1)
+		switch (c) {
+		case 'p':
+			pr++;
+			break;
+
+		case 's':
+			silent++;
+			break;
+
+		default:
+			goto usage;
+		}
+
+	if (argc - 1 != optind) {
+usage:
+		(void) fprintf(stderr, "Usage: %s [-ps] host\n", __progname);
+		return (1);
+	}
+	hname = argv[optind];
+
+	if ((hp = gethostbyname(hname)) == NULL) {
+		fprintf(stderr, "%s: ", __progname);
+		herror(hname);
+		exit(1);
+	}
+
+	if ((sp = getservbyname("time", "tcp")) == NULL) {
+		sp = &ssp;
+		sp->s_port = 37;
+		sp->s_proto = "tcp";
+	}
+	if ((pp = getprotobyname(sp->s_proto)) == NULL) {
+		pp = &ppp;
+		pp->p_proto = 6;
+	}
+	if ((s = socket(AF_INET, SOCK_STREAM, pp->p_proto)) == -1)
+		err(1, "Could not create socket");
+
+	bzero(&sa, sizeof sa);
+	sa.sin_family = AF_INET;
+	sa.sin_port = sp->s_port;
+
+	memcpy(&(sa.sin_addr.s_addr), hp->h_addr, hp->h_length);
+
+	if (connect(s, (struct sockaddr *) & sa, sizeof(sa)) == -1)
+		err(1, "Could not connect socket");
+
+	if (read(s, &tim, sizeof(time_t)) != sizeof(time_t))
+		err(1, "Could not read data");
+
+	(void) close(s);
+	tim = ntohl(tim) - DIFFERENCE;
+
+	if (!pr) {
+		struct timeval  tv;
+		tv.tv_sec = tim;
+		tv.tv_usec = 0;
+		if (settimeofday(&tv, NULL) == -1)
+			err(1, "Could not set time of day");
+	}
+	if (!silent)
+		(void) fputs(ctime(&tim), stdout);
+	return 0;
+}